Merge branch 'v3.13/memblock' of git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/keystone into v3.13/master
diff --git a/Documentation/devicetree/bindings/arm/davinci/nand.txt b/Documentation/devicetree/bindings/arm/davinci/nand.txt
deleted file mode 100644
index 3545ea7..0000000
--- a/Documentation/devicetree/bindings/arm/davinci/nand.txt
+++ /dev/null
@@ -1,46 +0,0 @@
-* Texas Instruments Davinci NAND
-
-This file provides information, what the device node for the
-davinci nand interface contain.
-
-Required properties:
-- compatible: "ti,davinci-nand";
-- reg : contain 2 offset/length values:
- - offset and length for the access window
- - offset and length for accessing the aemif control registers
-- ti,davinci-chipselect: Indicates on the davinci_nand driver which
- chipselect is used for accessing the nand.
-
-Recommended properties :
-- ti,davinci-mask-ale: mask for ale
-- ti,davinci-mask-cle: mask for cle
-- ti,davinci-mask-chipsel: mask for chipselect
-- ti,davinci-ecc-mode: ECC mode valid values for davinci driver:
- - "none"
- - "soft"
- - "hw"
-- ti,davinci-ecc-bits: used ECC bits, currently supported 1 or 4.
-- ti,davinci-nand-buswidth: buswidth 8 or 16
-- ti,davinci-nand-use-bbt: use flash based bad block table support.
-
-nand device bindings may contain additional sub-nodes describing
-partitions of the address space. See partition.txt for more detail.
-
-Example(da850 EVM ):
-nand_cs3@62000000 {
- compatible = "ti,davinci-nand";
- reg = <0x62000000 0x807ff
- 0x68000000 0x8000>;
- ti,davinci-chipselect = <1>;
- ti,davinci-mask-ale = <0>;
- ti,davinci-mask-cle = <0>;
- ti,davinci-mask-chipsel = <0>;
- ti,davinci-ecc-mode = "hw";
- ti,davinci-ecc-bits = <4>;
- ti,davinci-nand-use-bbt;
-
- partition@180000 {
- label = "ubifs";
- reg = <0x180000 0x7e80000>;
- };
-};
diff --git a/Documentation/devicetree/bindings/clock/keystone-pll.txt b/Documentation/devicetree/bindings/clock/keystone-pll.txt
index 12bd726..225990f 100644
--- a/Documentation/devicetree/bindings/clock/keystone-pll.txt
+++ b/Documentation/devicetree/bindings/clock/keystone-pll.txt
@@ -17,13 +17,14 @@
- reg - pll control0 and pll multipler registers
- reg-names : control and multiplier. The multiplier is applicable only for
main pll clock
-- fixed-postdiv : fixed post divider value
+- fixed-postdiv : fixed post divider value. If absent, use clkod register bits
+ for postdiv
Example:
mainpllclk: mainpllclk@2310110 {
#clock-cells = <0>;
compatible = "ti,keystone,main-pll-clock";
- clocks = <&refclkmain>;
+ clocks = <&refclksys>;
reg = <0x02620350 4>, <0x02310110 4>;
reg-names = "control", "multiplier";
fixed-postdiv = <2>;
@@ -32,11 +33,10 @@
papllclk: papllclk@2620358 {
#clock-cells = <0>;
compatible = "ti,keystone,pll-clock";
- clocks = <&refclkmain>;
+ clocks = <&refclkpass>;
clock-output-names = "pa-pll-clk";
reg = <0x02620358 4>;
reg-names = "control";
- fixed-postdiv = <6>;
};
Required properties:
diff --git a/Documentation/devicetree/bindings/gpio/gpio-davinci.txt b/Documentation/devicetree/bindings/gpio/gpio-davinci.txt
new file mode 100644
index 0000000..4ce9862
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/gpio-davinci.txt
@@ -0,0 +1,41 @@
+Davinci/Keystone GPIO controller bindings
+
+Required Properties:
+- compatible: should be "ti,dm6441-gpio", "ti,keystone-gpio"
+
+- reg: Physical base address of the controller and the size of memory mapped
+ registers.
+
+- gpio-controller : Marks the device node as a gpio controller.
+
+- interrupt-parent: phandle of the parent interrupt controller.
+
+- interrupts: Array of GPIO interrupt number. Only banked or unbanked IRQs are
+ supported at a time.
+
+- ti,ngpio: The number of GPIO pins supported.
+
+- ti,davinci-gpio-unbanked: The number of GPIOs that have an individual interrupt
+ line to processor.
+
+The GPIO controller also acts as an interrupt controller. It uses the default
+two cells specifier as described in Documentation/devicetree/bindings/
+interrupt-controller/interrupts.txt.
+
+Example:
+
+gpio: gpio@1e26000 {
+ compatible = "ti,dm6441-gpio";
+ gpio-controller;
+ reg = <0x226000 0x1000>;
+ interrupt-parent = <&intc>;
+ interrupts = <42 IRQ_TYPE_EDGE_BOTH 43 IRQ_TYPE_EDGE_BOTH
+ 44 IRQ_TYPE_EDGE_BOTH 45 IRQ_TYPE_EDGE_BOTH
+ 46 IRQ_TYPE_EDGE_BOTH 47 IRQ_TYPE_EDGE_BOTH
+ 48 IRQ_TYPE_EDGE_BOTH 49 IRQ_TYPE_EDGE_BOTH
+ 50 IRQ_TYPE_EDGE_BOTH>;
+ ti,ngpio = <144>;
+ ti,davinci-gpio-unbanked = <0>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+};
diff --git a/Documentation/devicetree/bindings/memory-controllers/ti-aemif.txt b/Documentation/devicetree/bindings/memory-controllers/ti-aemif.txt
new file mode 100644
index 0000000..d1466dc
--- /dev/null
+++ b/Documentation/devicetree/bindings/memory-controllers/ti-aemif.txt
@@ -0,0 +1,210 @@
+* Device tree bindings for Texas instruments AEMIF controller
+
+The Async External Memory Interface (EMIF16/AEMIF) controller is intended to
+provide a glue-less interface to a variety of asynchronous memory devices like
+ASRA M, NOR and NAND memory. A total of 256M bytes of any of these memories
+can be accessed at any given time via four chip selects with 64M byte access
+per chip select. Synchronous memories such as DDR1 SD RAM, SDR SDRAM
+and Mobile SDR are not supported.
+
+Documentation:
+Davinci DM646x - http://www.ti.com/lit/ug/sprueq7c/sprueq7c.pdf
+OMAP-L138 (DA850) - http://www.ti.com/lit/ug/spruh77a/spruh77a.pdf
+Kestone - http://www.ti.com/lit/ug/sprugz3a/sprugz3a.pdf
+
+Required properties:
+
+- compatible: "ti,davinci-aemif"
+ "ti,keystone-aemif"
+ "ti,da850-aemif"
+
+- reg: contains offset/length value for AEMIF control registers
+ space.
+
+- #address-cells: Must be 2. The partition number has to be encoded in the
+ first address cell and it may accept values 0..N-1
+ (N - total number of partitions). It's recommended to
+ assign N-1 number for the control partition. The second
+ cell is the offset into the partition.
+
+- #size-cells: Must be set to 1.
+
+- ranges: Contains memory regions. There are two types of
+ ranges/partitions:
+ - CS-specific partition/range. If continuous, must be
+ set up to reflect the memory layout for 4 chipselects,
+ if not then additional range/partition can be added and
+ child device can select the proper one.
+ - control partition which is common for all CS
+ interfaces.
+
+- clocks: the clock feeding the controller clock. Required only
+ if clock tree data present in device tree.
+ See clock-bindings.txt
+
+- clock-names: clock name. It has to be "aemif". Required only if clock
+ tree data present in device tree, in another case don't
+ use it.
+ See clock-bindings.txt
+
+- clock-ranges: Empty property indicating that child nodes can inherit
+ named clocks. Required only if clock tree data present
+ in device tree.
+ See clock-bindings.txt
+
+
+Child chip-select (cs) nodes contain the memory devices nodes connected to
+such as NOR (e.g. cfi-flash) and NAND (ti,davinci-nand, see davinci-nand.txt).
+There might be board specific devices like FPGAs.
+
+Required child cs node properties:
+
+- #address-cells: Must be 2.
+
+- #size-cells: Must be 1.
+
+- ranges: Empty property indicating that child nodes can inherit
+ memory layout.
+
+- clock-ranges: Empty property indicating that child nodes can inherit
+ named clocks. Required only if clock tree data present
+ in device tree.
+
+- ti,cs-chipselect: number of chipselect. Indicates on the aemif driver
+ which chipselect is used for accessing the memory. For
+ compatibles "ti,davinci-aemif" and "ti,keystone-aemif"
+ it can be in range [0-3]. For compatible
+ "ti,da850-aemif" range is [2-5].
+
+Optional child cs node properties:
+
+- ti,bus-width: width of the asynchronous device's data bus
+ 8 or 16 if not preset 8
+
+- ti,cs-ss: enable/disable select strobe mode
+ In select strobe mode chip select behaves as
+ the strobe and is active only during the strobe
+ period. If present then enable.
+
+- ti,cs-ew: enable/disable extended wait mode
+ if set, the controller monitors the EMIFWAIT pin
+ mapped to that chip select to determine if the
+ device wants to extend the strobe period. If
+ present then enable.
+
+- ti,cs-ta: minimum turn around time, ns
+ Time between the end of one asynchronous memory
+ access and the start of another asynchronous
+ memory access. This delay is not incurred
+ between a read followed by read or a write
+ followed by a write to same chip select.
+
+- ti,cs-rsetup: read setup width, ns
+ Time between the beginning of a memory cycle
+ and the activation of read strobe.
+ Minimum value is 1 (0 treated as 1).
+
+- ti,cs-rstobe: read strobe width, ns
+ Time between the activation and deactivation of
+ the read strobe.
+ Minimum value is 1 (0 treated as 1).
+
+- ti,cs-rhold: read hold width, ns
+ Time between the deactivation of the read
+ strobe and the end of the cycle (which may be
+ either an address change or the deactivation of
+ the chip select signal.
+ Minimum value is 1 (0 treated as 1).
+
+- ti,cs-wsetup: write setup width, ns
+ Time between the beginning of a memory cycle
+ and the activation of write strobe.
+ Minimum value is 1 (0 treated as 1).
+
+- ti,cs-wstrobe: write strobe width, ns
+ Time between the activation and deactivation of
+ the write strobe.
+ Minimum value is 1 (0 treated as 1).
+
+- ti,cs-whold: write hold width, ns
+ Time between the deactivation of the write
+ strobe and the end of the cycle (which may be
+ either an address change or the deactivation of
+ the chip select signal.
+ Minimum value is 1 (0 treated as 1).
+
+If any of the above parameters are absent, current parameter value will be taken
+from the corresponding HW reg.
+
+Example for aemif, davinci nand and nor flash chip select shown below.
+
+memory-controller@21000A00 {
+ compatible = "ti,davinci-aemif";
+ #address-cells = <2>;
+ #size-cells = <1>;
+ clocks = <&clkaemif 0>;
+ clock-names = "aemif";
+ clock-ranges;
+ reg = <0x2100A00 0x00000100>;
+ ranges = <0 0 0x70000000 0x10000000
+ 1 0 0x21000A00 0x0000100>;
+ /*
+ * Partition0: CS-specific memory range which is
+ * implemented as continuous physical memory region
+ * Partition1: control memory range
+ */
+
+ nand:cs2 {
+ #address-cells = <2>;
+ #size-cells = <1>;
+ clock-ranges;
+ ranges;
+
+ ti,cs-chipselect = <2>;
+ /* all timings in nanoseconds */
+ ti,cs-ta = <0>;
+ ti,cs-rhold = <7>;
+ ti,cs-rstrobe = <42>;
+ ti,cs-rsetup = <14>;
+ ti,cs-whold = <7>;
+ ti,cs-wstrobe = <42>;
+ ti,cs-wsetup = <14>;
+
+ nand@0,0x8000000 {
+ compatible = "ti,davinci-nand";
+ reg = <0 0x8000000 0x4000000
+ 1 0x0000000 0x0000100>;
+ /*
+ * Partition0, offset 0x8000000, size 0x4000000
+ * Partition1, offset 0x0000000, size 0x0000100
+ */
+
+ .. see davinci-nand.txt
+ };
+ };
+
+ nor:cs0 {
+ #address-cells = <2>;
+ #size-cells = <1>;
+ clock-ranges;
+ ranges;
+
+ ti,cs-chipselect = <0>;
+ /* all timings in nanoseconds */
+ ti,cs-ta = <0>;
+ ti,cs-rhold = <8>;
+ ti,cs-rstrobe = <40>;
+ ti,cs-rsetup = <14>;
+ ti,cs-whold = <7>;
+ ti,cs-wstrobe = <40>;
+ ti,cs-wsetup = <14>;
+ ti,cs-asize = <1>;
+
+ flash@0,0x0000000 {
+ compatible = "cfi-flash";
+ reg = <0 0x0000000 0x4000000>;
+
+ ...
+ };
+ };
+};
diff --git a/Documentation/devicetree/bindings/mtd/davinci-nand.txt b/Documentation/devicetree/bindings/mtd/davinci-nand.txt
new file mode 100644
index 0000000..cfb18ab
--- /dev/null
+++ b/Documentation/devicetree/bindings/mtd/davinci-nand.txt
@@ -0,0 +1,94 @@
+Device tree bindings for Texas instruments Davinci/Keystone NAND controller
+
+This file provides information, what the device node for the davinci/keystone
+NAND interface contains.
+
+Documentation:
+Davinci DM646x - http://www.ti.com/lit/ug/sprueq7c/sprueq7c.pdf
+Kestone - http://www.ti.com/lit/ug/sprugz3a/sprugz3a.pdf
+
+Required properties:
+
+- compatible: "ti,davinci-nand"
+ "ti,keystone-nand"
+
+- reg: Contains 2 offset/length values:
+ - offset and length for the access window.
+ - offset and length for accessing the AEMIF
+ control registers.
+
+- ti,davinci-chipselect: number of chipselect. Indicates on the
+ davinci_nand driver which chipselect is used
+ for accessing the nand.
+ Can be in the range [0-3].
+
+Recommended properties :
+
+- ti,davinci-mask-ale: mask for ALE. Needed for executing address
+ phase. These offset will be added to the base
+ address for the chip select space the NAND Flash
+ device is connected to.
+ If not set equal to 0x08.
+
+- ti,davinci-mask-cle: mask for CLE. Needed for executing command
+ phase. These offset will be added to the base
+ address for the chip select space the NAND Flash
+ device is connected to.
+ If not set equal to 0x10.
+
+- ti,davinci-mask-chipsel: mask for chipselect address. Needed to mask
+ addresses for given chipselect.
+
+- nand-ecc-mode: operation mode of the NAND ecc mode. ECC mode
+ valid values for davinci driver:
+ - "none"
+ - "soft"
+ - "hw"
+
+- ti,davinci-ecc-bits: used ECC bits, currently supported 1 or 4.
+
+- nand-bus-width: buswidth 8 or 16. If not present 8.
+
+- nand-on-flash-bbt: use flash based bad block table support. OOB
+ identifier is saved in OOB area. If not present
+ false.
+
+Deprecated properties:
+
+- ti,davinci-ecc-mode: operation mode of the NAND ecc mode. ECC mode
+ valid values for davinci driver:
+ - "none"
+ - "soft"
+ - "hw"
+
+- ti,davinci-nand-buswidth: buswidth 8 or 16. If not present 8.
+
+- ti,davinci-nand-use-bbt: use flash based bad block table support. OOB
+ identifier is saved in OOB area. If not present
+ false.
+
+Nand device bindings may contain additional sub-nodes describing partitions of
+the address space. See partition.txt for more detail. The NAND Flash timing
+values must be programmed in the chip select’s node of AEMIF
+memory-controller (see Documentation/devicetree/bindings/memory-controllers/
+davinci-aemif.txt).
+
+Example(da850 EVM ):
+
+nand_cs3@62000000 {
+ compatible = "ti,davinci-nand";
+ reg = <0x62000000 0x807ff
+ 0x68000000 0x8000>;
+ ti,davinci-chipselect = <1>;
+ ti,davinci-mask-ale = <0>;
+ ti,davinci-mask-cle = <0>;
+ ti,davinci-mask-chipsel = <0>;
+ nand-ecc-mode = "hw";
+ ti,davinci-ecc-bits = <4>;
+ nand-on-flash-bbt;
+
+ partition@180000 {
+ label = "ubifs";
+ reg = <0x180000 0x7e80000>;
+ };
+};
diff --git a/Documentation/devicetree/bindings/timer/ti,keystone-timer.txt b/Documentation/devicetree/bindings/timer/ti,keystone-timer.txt
new file mode 100644
index 0000000..5fbe361
--- /dev/null
+++ b/Documentation/devicetree/bindings/timer/ti,keystone-timer.txt
@@ -0,0 +1,29 @@
+* Device tree bindings for Texas instruments Keystone timer
+
+This document provides bindings for the 64-bit timer in the KeyStone
+architecture devices. The timer can be configured as a general-purpose 64-bit
+timer, dual general-purpose 32-bit timers. When configured as dual 32-bit
+timers, each half can operate in conjunction (chain mode) or independently
+(unchained mode) of each other.
+
+It is global timer is a free running up-counter and can generate interrupt
+when the counter reaches preset counter values.
+
+Documentation:
+http://www.ti.com/lit/ug/sprugv5a/sprugv5a.pdf
+
+Required properties:
+
+- compatible : should be "ti,keystone-timer".
+- reg : specifies base physical address and count of the registers.
+- interrupts : interrupt generated by the timer.
+- clocks : the clock feeding the timer clock.
+
+Example:
+
+timer@22f0000 {
+ compatible = "ti,keystone-timer";
+ reg = <0x022f0000 0x80>;
+ interrupts = <GIC_SPI 110 IRQ_TYPE_EDGE_RISING>;
+ clocks = <&clktimer15>;
+};
diff --git a/Documentation/devicetree/bindings/usb/keystone-phy.txt b/Documentation/devicetree/bindings/usb/keystone-phy.txt
new file mode 100644
index 0000000..f37b3a8
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/keystone-phy.txt
@@ -0,0 +1,20 @@
+TI Keystone USB PHY
+
+Required properties:
+ - compatible: should be "ti,keystone-usbphy".
+ - #address-cells, #size-cells : should be '1' if the device has sub-nodes
+ with 'reg' property.
+ - reg : Address and length of the usb phy control register set.
+
+The main purpose of this PHY driver is to enable the USB PHY reference clock
+gate on the Keystone SOC for both the USB2 and USB3 PHY. Otherwise it is just
+an NOP PHY driver. Hence this node is referenced as both the usb2 and usb3
+phy node in the USB Glue layer driver node.
+
+usb_phy: usb_phy@2620738 {
+ compatible = "ti,keystone-usbphy";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ reg = <0x2620738 32>;
+ status = "disabled";
+};
diff --git a/Documentation/devicetree/bindings/usb/keystone-usb.txt b/Documentation/devicetree/bindings/usb/keystone-usb.txt
new file mode 100644
index 0000000..60527d3
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/keystone-usb.txt
@@ -0,0 +1,42 @@
+TI Keystone Soc USB Controller
+
+DWC3 GLUE
+
+Required properties:
+ - compatible: should be "ti,keystone-dwc3".
+ - #address-cells, #size-cells : should be '1' if the device has sub-nodes
+ with 'reg' property.
+ - reg : Address and length of the register set for the USB subsystem on
+ the SOC.
+ - interrupts : The irq number of this device that is used to interrupt the
+ MPU.
+ - ranges: allows valid 1:1 translation between child's address space and
+ parent's address space.
+ - clocks: Clock IDs array as required by the controller.
+ - clock-names: names of clocks correseponding to IDs in the clock property.
+
+Sub-nodes:
+The dwc3 core should be added as subnode to Keystone DWC3 glue.
+- dwc3 :
+ The binding details of dwc3 can be found in:
+ Documentation/devicetree/bindings/usb/dwc3.txt
+
+Example:
+ usb: usb@2680000 {
+ compatible = "ti,keystone-dwc3";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ reg = <0x2680000 0x10000>;
+ clocks = <&clkusb>;
+ clock-names = "usb";
+ interrupts = <GIC_SPI 393 IRQ_TYPE_EDGE_RISING>;
+ ranges;
+ status = "disabled";
+
+ dwc3@2690000 {
+ compatible = "synopsys,dwc3";
+ reg = <0x2690000 0x70000>;
+ interrupts = <GIC_SPI 393 IRQ_TYPE_EDGE_RISING>;
+ usb-phy = <&usb_phy>, <&usb_phy>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/watchdog/davinci-wdt.txt b/Documentation/devicetree/bindings/watchdog/davinci-wdt.txt
index 75558cc..e60b9a1 100644
--- a/Documentation/devicetree/bindings/watchdog/davinci-wdt.txt
+++ b/Documentation/devicetree/bindings/watchdog/davinci-wdt.txt
@@ -1,12 +1,24 @@
-DaVinci Watchdog Timer (WDT) Controller
+Texas Instruments DaVinci/Keystone Watchdog Timer (WDT) Controller
Required properties:
-- compatible : Should be "ti,davinci-wdt"
+- compatible : Should be "ti,davinci-wdt", "ti,keystone-wdt"
- reg : Should contain WDT registers location and length
+Optional properties:
+- timeout-sec : Contains the watchdog timeout in seconds
+- clocks : the clock feeding the watchdog timer.
+ Needed if platform uses clocks.
+ See clock-bindings.txt
+
+Documentation:
+Davinci DM646x - http://www.ti.com/lit/ug/spruer5b/spruer5b.pdf
+Keystone - http://www.ti.com/lit/ug/sprugv5a/sprugv5a.pdf
+
Examples:
wdt: wdt@2320000 {
compatible = "ti,davinci-wdt";
reg = <0x02320000 0x80>;
+ timeout-sec = <30>;
+ clocks = <&clkwdtimer0>;
};
diff --git a/arch/arm/boot/dts/k2hk-evm.dts b/arch/arm/boot/dts/k2hk-evm.dts
new file mode 100644
index 0000000..2554537
--- /dev/null
+++ b/arch/arm/boot/dts/k2hk-evm.dts
@@ -0,0 +1,138 @@
+/*
+ * Copyright 2013 Texas Instruments, Inc.
+ *
+ * Keystone 2 Kepler/Hawking EVM device tree
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+/dts-v1/;
+
+#include "keystone.dtsi"
+
+/ {
+ compatible = "ti,keystone-evm";
+
+ soc {
+ clocks {
+ refclksys: refclksys {
+ #clock-cells = <0>;
+ compatible = "fixed-clock";
+ clock-frequency = <122880000>;
+ clock-output-names = "refclk-sys";
+ };
+
+ refclkpass: refclkpass {
+ #clock-cells = <0>;
+ compatible = "fixed-clock";
+ clock-frequency = <122880000>;
+ clock-output-names = "refclk-pass";
+ };
+
+ refclkarm: refclkarm {
+ #clock-cells = <0>;
+ compatible = "fixed-clock";
+ clock-frequency = <125000000>;
+ clock-output-names = "refclk-arm";
+ };
+
+ refclkddr3a: refclkddr3a {
+ #clock-cells = <0>;
+ compatible = "fixed-clock";
+ clock-frequency = <100000000>;
+ clock-output-names = "refclk-ddr3a";
+ };
+
+ refclkddr3b: refclkddr3b {
+ #clock-cells = <0>;
+ compatible = "fixed-clock";
+ clock-frequency = <100000000>;
+ clock-output-names = "refclk-ddr3b";
+ };
+ };
+ };
+
+ leds {
+ compatible = "gpio-leds";
+ debug1_1 {
+ label = "keystone:green:debug1";
+ gpios = <&gpio0 12 GPIO_ACTIVE_HIGH>; /* 12 */
+ };
+
+ debug1_2 {
+ label = "keystone:red:debug1";
+ gpios = <&gpio0 13 GPIO_ACTIVE_HIGH>; /* 13 */
+ };
+
+ debug2 {
+ label = "keystone:blue:debug2";
+ gpios = <&gpio0 14 GPIO_ACTIVE_HIGH>; /* 14 */
+ };
+
+ debug3 {
+ label = "keystone:blue:debug3";
+ gpios = <&gpio0 15 GPIO_ACTIVE_HIGH>; /* 15 */
+ };
+ };
+};
+
+&usb_phy {
+ status = "okay";
+};
+
+&usb {
+ status = "okay";
+};
+
+&aemif {
+ cs0 {
+ #address-cells = <2>;
+ #size-cells = <1>;
+ clock-ranges;
+ ranges;
+
+ ti,cs-chipselect = <0>;
+ /* all timings in nanoseconds */
+ ti,cs-ta = <12>;
+ ti,cs-rhold = <6>;
+ ti,cs-rstrobe = <23>;
+ ti,cs-rsetup = <9>;
+ ti,cs-whold = <8>;
+ ti,cs-wstrobe = <23>;
+ ti,cs-wsetup = <8>;
+
+ nand@0,0 {
+ compatible = "ti,keystone-nand","ti,davinci-nand";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ reg = <0 0 0x4000000
+ 1 0 0x0000100>;
+
+ ti,davinci-chipselect = <0>;
+ ti,davinci-mask-ale = <0x2000>;
+ ti,davinci-mask-cle = <0x4000>;
+ ti,davinci-mask-chipsel = <0>;
+ nand-ecc-mode = "hw";
+ ti,davinci-ecc-bits = <4>;
+ nand-on-flash-bbt;
+
+ partition@0 {
+ label = "u-boot";
+ reg = <0x0 0x100000>;
+ read-only;
+ };
+
+ partition@100000 {
+ label = "params";
+ reg = <0x100000 0x80000>;
+ read-only;
+ };
+
+ partition@180000 {
+ label = "ubifs";
+ reg = <0x180000 0x7E80000>;
+ };
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/keystone-clocks.dtsi b/arch/arm/boot/dts/keystone-clocks.dtsi
index d6713b1..2943cde 100644
--- a/arch/arm/boot/dts/keystone-clocks.dtsi
+++ b/arch/arm/boot/dts/keystone-clocks.dtsi
@@ -13,17 +13,10 @@
#size-cells = <1>;
ranges;
- refclkmain: refclkmain {
- #clock-cells = <0>;
- compatible = "fixed-clock";
- clock-frequency = <122880000>;
- clock-output-names = "refclk-main";
- };
-
mainpllclk: mainpllclk@2310110 {
#clock-cells = <0>;
compatible = "ti,keystone,main-pll-clock";
- clocks = <&refclkmain>;
+ clocks = <&refclksys>;
reg = <0x02620350 4>, <0x02310110 4>;
reg-names = "control", "multiplier";
fixed-postdiv = <2>;
@@ -32,47 +25,43 @@
papllclk: papllclk@2620358 {
#clock-cells = <0>;
compatible = "ti,keystone,pll-clock";
- clocks = <&refclkmain>;
+ clocks = <&refclkpass>;
clock-output-names = "pa-pll-clk";
reg = <0x02620358 4>;
reg-names = "control";
- fixed-postdiv = <6>;
};
- ddr3allclk: ddr3apllclk@2620360 {
+ ddr3apllclk: ddr3apllclk@2620360 {
#clock-cells = <0>;
compatible = "ti,keystone,pll-clock";
- clocks = <&refclkmain>;
+ clocks = <&refclkddr3a>;
clock-output-names = "ddr-3a-pll-clk";
reg = <0x02620360 4>;
reg-names = "control";
- fixed-postdiv = <6>;
};
- ddr3bllclk: ddr3bpllclk@2620368 {
+ ddr3bpllclk: ddr3bpllclk@2620368 {
#clock-cells = <0>;
compatible = "ti,keystone,pll-clock";
- clocks = <&refclkmain>;
+ clocks = <&refclkddr3b>;
clock-output-names = "ddr-3b-pll-clk";
reg = <0x02620368 4>;
reg-names = "control";
- fixed-postdiv = <6>;
};
armpllclk: armpllclk@2620370 {
#clock-cells = <0>;
compatible = "ti,keystone,pll-clock";
- clocks = <&refclkmain>;
+ clocks = <&refclkarm>;
clock-output-names = "arm-pll-clk";
reg = <0x02620370 4>;
reg-names = "control";
- fixed-postdiv = <6>;
};
mainmuxclk: mainmuxclk@2310108 {
#clock-cells = <0>;
compatible = "ti,keystone,pll-mux-clock";
- clocks = <&mainpllclk>, <&refclkmain>;
+ clocks = <&mainpllclk>, <&refclksys>;
reg = <0x02310108 4>;
bit-shift = <23>;
bit-mask = <1>;
@@ -135,6 +124,15 @@
clock-output-names = "chipclk13";
};
+ paclk13: paclk13 {
+ #clock-cells = <0>;
+ compatible = "fixed-factor-clock";
+ clocks = <&papllclk>;
+ clock-div = <3>;
+ clock-mult = <1>;
+ clock-output-names = "paclk13";
+ };
+
chipclk14: chipclk14 {
#clock-cells = <0>;
compatible = "fixed-factor-clock";
@@ -329,16 +327,6 @@
domain-id = <6>;
};
- clkmsmcsram: clkmsmcsram {
- #clock-cells = <0>;
- compatible = "ti,keystone,psc-clock";
- clocks = <&chipclk1>;
- clock-output-names = "msmcsram";
- reg = <0x02350038 0xb00>, <0x0235001c 0x400>;
- reg-names = "control", "domain";
- domain-id = <7>;
- };
-
clkgem0: clkgem0 {
#clock-cells = <0>;
compatible = "ti,keystone,psc-clock";
@@ -614,7 +602,7 @@
compatible = "ti,keystone,psc-clock";
clocks = <&chipclk13>;
clock-output-names = "vcp-3";
- reg = <0x0235000a8 0xb00>, <0x02350060 0x400>;
+ reg = <0x023500a8 0xb00>, <0x02350060 0x400>;
reg-names = "control", "domain";
domain-id = <24>;
};
@@ -739,6 +727,16 @@
domain-id = <0>;
};
+ clktimer15: clktimer15 {
+ #clock-cells = <0>;
+ compatible = "ti,keystone,psc-clock";
+ clocks = <&clkmodrst0>;
+ clock-output-names = "timer15";
+ reg = <0x02350000 0xb00>, <0x02350000 0x400>;
+ reg-names = "control", "domain";
+ domain-id = <0>;
+ };
+
clkuart0: clkuart0 {
#clock-cells = <0>;
compatible = "ti,keystone,psc-clock";
diff --git a/arch/arm/boot/dts/keystone.dts b/arch/arm/boot/dts/keystone.dts
deleted file mode 100644
index 100bdf5..0000000
--- a/arch/arm/boot/dts/keystone.dts
+++ /dev/null
@@ -1,183 +0,0 @@
-/*
- * Copyright 2013 Texas Instruments, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-/dts-v1/;
-#include <dt-bindings/interrupt-controller/arm-gic.h>
-
-#include "skeleton.dtsi"
-
-/ {
- model = "Texas Instruments Keystone 2 SoC";
- compatible = "ti,keystone-evm";
- #address-cells = <2>;
- #size-cells = <2>;
- interrupt-parent = <&gic>;
-
- aliases {
- serial0 = &uart0;
- };
-
- memory {
- reg = <0x00000000 0x80000000 0x00000000 0x40000000>;
- };
-
- cpus {
- #address-cells = <1>;
- #size-cells = <0>;
-
- interrupt-parent = <&gic>;
-
- cpu@0 {
- compatible = "arm,cortex-a15";
- device_type = "cpu";
- reg = <0>;
- };
-
- cpu@1 {
- compatible = "arm,cortex-a15";
- device_type = "cpu";
- reg = <1>;
- };
-
- cpu@2 {
- compatible = "arm,cortex-a15";
- device_type = "cpu";
- reg = <2>;
- };
-
- cpu@3 {
- compatible = "arm,cortex-a15";
- device_type = "cpu";
- reg = <3>;
- };
- };
-
- gic: interrupt-controller {
- compatible = "arm,cortex-a15-gic";
- #interrupt-cells = <3>;
- #size-cells = <0>;
- #address-cells = <1>;
- interrupt-controller;
- reg = <0x0 0x02561000 0x0 0x1000>,
- <0x0 0x02562000 0x0 0x2000>;
- };
-
- timer {
- compatible = "arm,armv7-timer";
- interrupts =
- <GIC_PPI 13
- (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
- <GIC_PPI 14
- (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
- <GIC_PPI 11
- (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
- <GIC_PPI 10
- (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>;
- };
-
- pmu {
- compatible = "arm,cortex-a15-pmu";
- interrupts = <GIC_SPI 20 IRQ_TYPE_EDGE_RISING>,
- <GIC_SPI 21 IRQ_TYPE_EDGE_RISING>,
- <GIC_SPI 22 IRQ_TYPE_EDGE_RISING>,
- <GIC_SPI 23 IRQ_TYPE_EDGE_RISING>;
- };
-
- soc {
- #address-cells = <1>;
- #size-cells = <1>;
- compatible = "ti,keystone","simple-bus";
- interrupt-parent = <&gic>;
- ranges = <0x0 0x0 0x0 0xc0000000>;
-
- rstctrl: reset-controller {
- compatible = "ti,keystone-reset";
- reg = <0x023100e8 4>; /* pll reset control reg */
- };
-
- /include/ "keystone-clocks.dtsi"
-
- uart0: serial@02530c00 {
- compatible = "ns16550a";
- current-speed = <115200>;
- reg-shift = <2>;
- reg-io-width = <4>;
- reg = <0x02530c00 0x100>;
- clocks = <&clkuart0>;
- interrupts = <GIC_SPI 277 IRQ_TYPE_EDGE_RISING>;
- };
-
- uart1: serial@02531000 {
- compatible = "ns16550a";
- current-speed = <115200>;
- reg-shift = <2>;
- reg-io-width = <4>;
- reg = <0x02531000 0x100>;
- clocks = <&clkuart1>;
- interrupts = <GIC_SPI 280 IRQ_TYPE_EDGE_RISING>;
- };
-
- i2c0: i2c@2530000 {
- compatible = "ti,davinci-i2c";
- reg = <0x02530000 0x400>;
- clock-frequency = <100000>;
- clocks = <&clki2c>;
- interrupts = <GIC_SPI 283 IRQ_TYPE_EDGE_RISING>;
- #address-cells = <1>;
- #size-cells = <0>;
-
- dtt@50 {
- compatible = "at,24c1024";
- reg = <0x50>;
- };
- };
-
- i2c1: i2c@2530400 {
- compatible = "ti,davinci-i2c";
- reg = <0x02530400 0x400>;
- clock-frequency = <100000>;
- clocks = <&clki2c>;
- interrupts = <GIC_SPI 286 IRQ_TYPE_EDGE_RISING>;
- };
-
- i2c2: i2c@2530800 {
- compatible = "ti,davinci-i2c";
- reg = <0x02530800 0x400>;
- clock-frequency = <100000>;
- clocks = <&clki2c>;
- interrupts = <GIC_SPI 289 IRQ_TYPE_EDGE_RISING>;
- };
-
- spi0: spi@21000400 {
- compatible = "ti,dm6441-spi";
- reg = <0x21000400 0x200>;
- num-cs = <4>;
- ti,davinci-spi-intr-line = <0>;
- interrupts = <GIC_SPI 292 IRQ_TYPE_EDGE_RISING>;
- clocks = <&clkspi>;
- };
-
- spi1: spi@21000600 {
- compatible = "ti,dm6441-spi";
- reg = <0x21000600 0x200>;
- num-cs = <4>;
- ti,davinci-spi-intr-line = <0>;
- interrupts = <GIC_SPI 296 IRQ_TYPE_EDGE_RISING>;
- clocks = <&clkspi>;
- };
-
- spi2: spi@21000800 {
- compatible = "ti,dm6441-spi";
- reg = <0x21000800 0x200>;
- num-cs = <4>;
- ti,davinci-spi-intr-line = <0>;
- interrupts = <GIC_SPI 300 IRQ_TYPE_EDGE_RISING>;
- clocks = <&clkspi>;
- };
- };
-};
diff --git a/arch/arm/boot/dts/keystone.dtsi b/arch/arm/boot/dts/keystone.dtsi
new file mode 100644
index 0000000..bc8c8e6
--- /dev/null
+++ b/arch/arm/boot/dts/keystone.dtsi
@@ -0,0 +1,283 @@
+/*
+ * Copyright 2013 Texas Instruments, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/gpio/gpio.h>
+
+#include "skeleton.dtsi"
+
+/ {
+ model = "Texas Instruments Keystone 2 SoC";
+ #address-cells = <2>;
+ #size-cells = <2>;
+ interrupt-parent = <&gic>;
+
+ aliases {
+ serial0 = &uart0;
+ };
+
+ memory {
+ reg = <0x00000000 0x80000000 0x00000000 0x40000000>;
+ };
+
+ cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ interrupt-parent = <&gic>;
+
+ cpu@0 {
+ compatible = "arm,cortex-a15";
+ device_type = "cpu";
+ reg = <0>;
+ };
+
+ cpu@1 {
+ compatible = "arm,cortex-a15";
+ device_type = "cpu";
+ reg = <1>;
+ };
+
+ cpu@2 {
+ compatible = "arm,cortex-a15";
+ device_type = "cpu";
+ reg = <2>;
+ };
+
+ cpu@3 {
+ compatible = "arm,cortex-a15";
+ device_type = "cpu";
+ reg = <3>;
+ };
+ };
+
+ gic: interrupt-controller {
+ compatible = "arm,cortex-a15-gic";
+ #interrupt-cells = <3>;
+ #size-cells = <0>;
+ #address-cells = <1>;
+ interrupt-controller;
+ reg = <0x0 0x02561000 0x0 0x1000>,
+ <0x0 0x02562000 0x0 0x2000>,
+ <0x0 0x02564000 0x0 0x1000>,
+ <0x0 0x02566000 0x0 0x2000>;
+ interrupts = <GIC_PPI 9 (GIC_CPU_MASK_SIMPLE(4) |
+ IRQ_TYPE_LEVEL_HIGH)>;
+ };
+
+ timer {
+ compatible = "arm,armv7-timer";
+ interrupts =
+ <GIC_PPI 13
+ (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
+ <GIC_PPI 14
+ (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
+ <GIC_PPI 11
+ (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
+ <GIC_PPI 10
+ (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>;
+ };
+
+ pmu {
+ compatible = "arm,cortex-a15-pmu";
+ interrupts = <GIC_SPI 20 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 21 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 22 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 23 IRQ_TYPE_EDGE_RISING>;
+ };
+
+ soc {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "ti,keystone","simple-bus";
+ interrupt-parent = <&gic>;
+ ranges = <0x0 0x0 0x0 0xc0000000>;
+
+ rstctrl: reset-controller {
+ compatible = "ti,keystone-reset";
+ reg = <0x023100e8 4>; /* pll reset control reg */
+ };
+
+ /include/ "keystone-clocks.dtsi"
+
+ uart0: serial@02530c00 {
+ compatible = "ns16550a";
+ current-speed = <115200>;
+ reg-shift = <2>;
+ reg-io-width = <4>;
+ reg = <0x02530c00 0x100>;
+ clocks = <&clkuart0>;
+ interrupts = <GIC_SPI 277 IRQ_TYPE_EDGE_RISING>;
+ };
+
+ uart1: serial@02531000 {
+ compatible = "ns16550a";
+ current-speed = <115200>;
+ reg-shift = <2>;
+ reg-io-width = <4>;
+ reg = <0x02531000 0x100>;
+ clocks = <&clkuart1>;
+ interrupts = <GIC_SPI 280 IRQ_TYPE_EDGE_RISING>;
+ };
+
+ i2c0: i2c@2530000 {
+ compatible = "ti,davinci-i2c";
+ reg = <0x02530000 0x400>;
+ clock-frequency = <100000>;
+ clocks = <&clki2c>;
+ interrupts = <GIC_SPI 283 IRQ_TYPE_EDGE_RISING>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ dtt@50 {
+ compatible = "at,24c1024";
+ reg = <0x50>;
+ };
+ };
+
+ i2c1: i2c@2530400 {
+ compatible = "ti,davinci-i2c";
+ reg = <0x02530400 0x400>;
+ clock-frequency = <100000>;
+ clocks = <&clki2c>;
+ interrupts = <GIC_SPI 286 IRQ_TYPE_EDGE_RISING>;
+ };
+
+ i2c2: i2c@2530800 {
+ compatible = "ti,davinci-i2c";
+ reg = <0x02530800 0x400>;
+ clock-frequency = <100000>;
+ clocks = <&clki2c>;
+ interrupts = <GIC_SPI 289 IRQ_TYPE_EDGE_RISING>;
+ };
+
+ spi0: spi@21000400 {
+ compatible = "ti,dm6441-spi";
+ reg = <0x21000400 0x200>;
+ num-cs = <4>;
+ ti,davinci-spi-intr-line = <0>;
+ interrupts = <GIC_SPI 292 IRQ_TYPE_EDGE_RISING>;
+ clocks = <&clkspi>;
+ };
+
+ spi1: spi@21000600 {
+ compatible = "ti,dm6441-spi";
+ reg = <0x21000600 0x200>;
+ num-cs = <4>;
+ ti,davinci-spi-intr-line = <0>;
+ interrupts = <GIC_SPI 296 IRQ_TYPE_EDGE_RISING>;
+ clocks = <&clkspi>;
+ };
+
+ spi2: spi@21000800 {
+ compatible = "ti,dm6441-spi";
+ reg = <0x21000800 0x200>;
+ num-cs = <4>;
+ ti,davinci-spi-intr-line = <0>;
+ interrupts = <GIC_SPI 300 IRQ_TYPE_EDGE_RISING>;
+ clocks = <&clkspi>;
+ };
+
+ usb_phy: usb_phy@2620738 {
+ compatible = "ti,keystone-usbphy";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ reg = <0x2620738 32>;
+ status = "disabled";
+ };
+
+ usb: usb@2680000 {
+ compatible = "ti,keystone-dwc3";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ reg = <0x2680000 0x10000>;
+ clocks = <&clkusb>;
+ clock-names = "usb";
+ interrupts = <GIC_SPI 393 IRQ_TYPE_EDGE_RISING>;
+ ranges;
+ status = "disabled";
+
+ dwc3@2690000 {
+ compatible = "synopsys,dwc3";
+ reg = <0x2690000 0x70000>;
+ interrupts = <GIC_SPI 393 IRQ_TYPE_EDGE_RISING>;
+ usb-phy = <&usb_phy>, <&usb_phy>;
+ };
+ };
+
+ wdt: wdt@022f0080 {
+ compatible = "ti,keystone-wdt","ti,davinci-wdt";
+ reg = <0x022f0080 0x80>;
+ clocks = <&clkwdtimer0>;
+ };
+
+ clock_event: timer@22f0000 {
+ compatible = "ti,keystone-timer";
+ reg = <0x022f0000 0x80>;
+ interrupts = <GIC_SPI 110 IRQ_TYPE_EDGE_RISING>;
+ clocks = <&clktimer15>;
+ };
+
+ aemif: aemif@21000A00 {
+ compatible = "ti,keystone-aemif", "ti,davinci-aemif";
+ #address-cells = <2>;
+ #size-cells = <1>;
+ clocks = <&clkaemif>;
+ clock-names = "aemif";
+ clock-ranges;
+
+ reg = <0x21000A00 0x00000100>;
+ ranges = <0 0 0x30000000 0x10000000
+ 1 0 0x21000A00 0x00000100>;
+ };
+
+ gpio0: gpio@260bf00 {
+ compatible = "ti,keystone-gpio";
+ reg = <0x0260bf00 0x100>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ /* HW Interrupts mapped to GPIO pins */
+ interrupts = <GIC_SPI 120 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 121 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 122 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 123 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 124 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 125 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 126 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 127 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 128 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 129 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 130 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 131 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 132 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 133 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 134 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 135 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 136 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 137 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 138 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 139 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 140 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 141 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 142 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 143 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 144 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 145 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 146 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 147 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 148 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 149 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 150 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 151 IRQ_TYPE_EDGE_RISING>;
+ clocks = <&clkgpio>;
+ clock-names = "gpio";
+ ti,ngpio = <32>;
+ ti,davinci-gpio-unbanked = <32>;
+ };
+ };
+};
diff --git a/arch/arm/configs/keystone_defconfig b/arch/arm/configs/keystone_defconfig
index 9943e5d..ec9a41d 100644
--- a/arch/arm/configs/keystone_defconfig
+++ b/arch/arm/configs/keystone_defconfig
@@ -111,10 +111,13 @@
CONFIG_MTD_PLATRAM=y
CONFIG_MTD_M25P80=y
CONFIG_MTD_NAND=y
+CONFIG_MTD_NAND_DAVINCI=y
CONFIG_MTD_UBI=y
CONFIG_PROC_DEVICETREE=y
CONFIG_BLK_DEV_LOOP=y
CONFIG_EEPROM_AT24=y
+CONFIG_SCSI=y
+CONFIG_BLK_DEV_SD=y
CONFIG_NETDEVICES=y
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
@@ -129,10 +132,28 @@
CONFIG_SPI_SPIDEV=y
# CONFIG_HWMON is not set
CONFIG_WATCHDOG=y
-# CONFIG_USB_SUPPORT is not set
+CONFIG_WATCHDOG_CORE=y
+CONFIG_DAVINCI_WATCHDOG=y
+CONFIG_USB=y
+CONFIG_USB_DEBUG=y
+CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
+CONFIG_USB_MON=y
+CONFIG_USB_XHCI_HCD=y
+CONFIG_USB_STORAGE=y
+CONFIG_USB_DWC3=y
+CONFIG_USB_DWC3_DEBUG=y
+CONFIG_USB_DWC3_VERBOSE=y
+CONFIG_KEYSTONE_USB_PHY=y
CONFIG_DMADEVICES=y
+CONFIG_TI_EDMA=y
CONFIG_COMMON_CLK_DEBUG=y
CONFIG_MEMORY=y
+CONFIG_TI_AEMIF=y
+CONFIG_EXT4_FS=y
+CONFIG_EXT4_FS_POSIX_ACL=y
+CONFIG_MSDOS_FS=y
+CONFIG_VFAT_FS=y
+CONFIG_NTFS_FS=y
CONFIG_TMPFS=y
CONFIG_JFFS2_FS=y
CONFIG_JFFS2_FS_WBUF_VERIFY=y
@@ -144,6 +165,8 @@
CONFIG_NFSD=y
CONFIG_NFSD_V3=y
CONFIG_NFSD_V3_ACL=y
+CONFIG_NLS_CODEPAGE_437=y
+CONFIG_NLS_ISO8859_1=y
CONFIG_PRINTK_TIME=y
CONFIG_DEBUG_SHIRQ=y
CONFIG_DEBUG_INFO=y
@@ -158,3 +181,14 @@
CONFIG_CRYPTO_ANSI_CPRNG=y
CONFIG_CRYPTO_USER_API_HASH=y
CONFIG_CRYPTO_USER_API_SKCIPHER=y
+CONFIG_GPIOLIB=y
+CONFIG_GPIO_SYSFS=y
+CONFIG_GPIO_DAVINCI=y
+CONFIG_LEDS_CLASS=y
+CONFIG_NEW_LEDS=y
+CONFIG_LEDS_GPIO=y
+CONFIG_LEDS_TRIGGERS=y
+CONFIG_LEDS_TRIGGER_ONESHOT=y
+CONFIG_LEDS_TRIGGER_HEARTBEAT=y
+CONFIG_LEDS_TRIGGER_BACKLIGHT=y
+CONFIG_LEDS_TRIGGER_GPIO=y
diff --git a/arch/arm/mach-davinci/aemif.c b/arch/arm/mach-davinci/aemif.c
index f091a90..ff8b7e7 100644
--- a/arch/arm/mach-davinci/aemif.c
+++ b/arch/arm/mach-davinci/aemif.c
@@ -16,6 +16,7 @@
#include <linux/time.h>
#include <linux/platform_data/mtd-davinci-aemif.h>
+#include <linux/platform_data/mtd-davinci.h>
/* Timing value configuration */
@@ -43,6 +44,17 @@
WSTROBE(WSTROBE_MAX) | \
WSETUP(WSETUP_MAX))
+static inline unsigned int davinci_aemif_readl(void __iomem *base, int offset)
+{
+ return readl_relaxed(base + offset);
+}
+
+static inline void davinci_aemif_writel(void __iomem *base,
+ int offset, unsigned long value)
+{
+ writel_relaxed(value, base + offset);
+}
+
/*
* aemif_calc_rate - calculate timing data.
* @wanted: The cycle time needed in nanoseconds.
@@ -76,6 +88,7 @@
* @t: timing values to be progammed
* @base: The virtual base address of the AEMIF interface
* @cs: chip-select to program the timing values for
+ * @clkrate: the AEMIF clkrate
*
* This function programs the given timing values (in real clock) into the
* AEMIF registers taking the AEMIF clock into account.
@@ -86,24 +99,17 @@
*
* Returns 0 on success, else negative errno.
*/
-int davinci_aemif_setup_timing(struct davinci_aemif_timing *t,
- void __iomem *base, unsigned cs)
+static int davinci_aemif_setup_timing(struct davinci_aemif_timing *t,
+ void __iomem *base, unsigned cs,
+ unsigned long clkrate)
{
unsigned set, val;
int ta, rhold, rstrobe, rsetup, whold, wstrobe, wsetup;
unsigned offset = A1CR_OFFSET + cs * 4;
- struct clk *aemif_clk;
- unsigned long clkrate;
if (!t)
return 0; /* Nothing to do */
- aemif_clk = clk_get(NULL, "aemif");
- if (IS_ERR(aemif_clk))
- return PTR_ERR(aemif_clk);
-
- clkrate = clk_get_rate(aemif_clk);
-
clkrate /= 1000; /* turn clock into kHz for ease of use */
ta = aemif_calc_rate(t->ta, clkrate, TA_MAX);
@@ -130,4 +136,83 @@
return 0;
}
-EXPORT_SYMBOL(davinci_aemif_setup_timing);
+
+/**
+ * davinci_aemif_setup - setup AEMIF interface by davinci_nand_pdata
+ * @pdev - link to platform device to setup settings for
+ *
+ * This function does not use any locking while programming the AEMIF
+ * because it is expected that there is only one user of a given
+ * chip-select.
+ *
+ * Returns 0 on success, else negative errno.
+ */
+int davinci_aemif_setup(struct platform_device *pdev)
+{
+ struct davinci_nand_pdata *pdata = dev_get_platdata(&pdev->dev);
+ uint32_t val;
+ unsigned long clkrate;
+ struct resource *res;
+ void __iomem *base;
+ struct clk *clk;
+ int ret = 0;
+
+ clk = clk_get(&pdev->dev, "aemif");
+ if (IS_ERR(clk)) {
+ ret = PTR_ERR(clk);
+ dev_dbg(&pdev->dev, "unable to get AEMIF clock, err %d\n", ret);
+ return ret;
+ }
+
+ ret = clk_prepare_enable(clk);
+ if (ret < 0) {
+ dev_dbg(&pdev->dev, "unable to enable AEMIF clock, err %d\n",
+ ret);
+ goto err_put;
+ }
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+ if (!res) {
+ dev_err(&pdev->dev, "cannot get IORESOURCE_MEM\n");
+ ret = -ENOMEM;
+ goto err;
+ }
+
+ base = ioremap(res->start, resource_size(res));
+ if (!base) {
+ dev_err(&pdev->dev, "ioremap failed for resource %pR\n", res);
+ ret = -ENOMEM;
+ goto err;
+ }
+
+ /*
+ * Setup Async configuration register in case we did not boot
+ * from NAND and so bootloader did not bother to set it up.
+ */
+ val = davinci_aemif_readl(base, A1CR_OFFSET + pdev->id * 4);
+ /*
+ * Extended Wait is not valid and Select Strobe mode is not
+ * used
+ */
+ val &= ~(ACR_ASIZE_MASK | ACR_EW_MASK | ACR_SS_MASK);
+ if (pdata->options & NAND_BUSWIDTH_16)
+ val |= 0x1;
+
+ davinci_aemif_writel(base, A1CR_OFFSET + pdev->id * 4, val);
+
+ clkrate = clk_get_rate(clk);
+
+ if (pdata->timing)
+ ret = davinci_aemif_setup_timing(pdata->timing, base, pdev->id,
+ clkrate);
+
+ if (ret < 0)
+ dev_dbg(&pdev->dev, "NAND timing values setup fail\n");
+
+ iounmap(base);
+err:
+ clk_disable_unprepare(clk);
+err_put:
+ clk_put(clk);
+ return ret;
+}
diff --git a/arch/arm/mach-davinci/board-da830-evm.c b/arch/arm/mach-davinci/board-da830-evm.c
index d1f45af..5623131 100644
--- a/arch/arm/mach-davinci/board-da830-evm.c
+++ b/arch/arm/mach-davinci/board-da830-evm.c
@@ -419,6 +419,9 @@
if (ret)
pr_warning("da830_evm_init: NAND device not registered.\n");
+ if (davinci_aemif_setup(&da830_evm_nand_device))
+ pr_warn("%s: Cannot configure AEMIF.\n", __func__);
+
gpio_direction_output(mux_mode, 1);
}
#else
diff --git a/arch/arm/mach-davinci/board-da850-evm.c b/arch/arm/mach-davinci/board-da850-evm.c
index e0af0ec..234c5bb 100644
--- a/arch/arm/mach-davinci/board-da850-evm.c
+++ b/arch/arm/mach-davinci/board-da850-evm.c
@@ -358,6 +358,9 @@
platform_add_devices(da850_evm_devices,
ARRAY_SIZE(da850_evm_devices));
+
+ if (davinci_aemif_setup(&da850_evm_nandflash_device))
+ pr_warn("%s: Cannot configure AEMIF.\n", __func__);
}
}
diff --git a/arch/arm/mach-davinci/board-dm644x-evm.c b/arch/arm/mach-davinci/board-dm644x-evm.c
index 987605b7..5602957 100644
--- a/arch/arm/mach-davinci/board-dm644x-evm.c
+++ b/arch/arm/mach-davinci/board-dm644x-evm.c
@@ -778,6 +778,11 @@
/* only one device will be jumpered and detected */
if (HAS_NAND) {
platform_device_register(&davinci_evm_nandflash_device);
+
+ if (davinci_aemif_setup(&davinci_evm_nandflash_device))
+ pr_warn("%s: Cannot configure AEMIF.\n",
+ __func__);
+
evm_leds[7].default_trigger = "nand-disk";
if (HAS_NOR)
pr_warning("WARNING: both NAND and NOR flash "
diff --git a/arch/arm/mach-davinci/board-dm646x-evm.c b/arch/arm/mach-davinci/board-dm646x-evm.c
index 13d0801..ae129bc 100644
--- a/arch/arm/mach-davinci/board-dm646x-evm.c
+++ b/arch/arm/mach-davinci/board-dm646x-evm.c
@@ -805,6 +805,9 @@
platform_device_register(&davinci_nand_device);
+ if (davinci_aemif_setup(&davinci_nand_device))
+ pr_warn("%s: Cannot configure AEMIF.\n", __func__);
+
dm646x_init_edma(dm646x_edma_rsv);
if (HAS_ATA)
diff --git a/arch/arm/mach-davinci/board-mityomapl138.c b/arch/arm/mach-davinci/board-mityomapl138.c
index 7aa105b..96fc00a 100644
--- a/arch/arm/mach-davinci/board-mityomapl138.c
+++ b/arch/arm/mach-davinci/board-mityomapl138.c
@@ -27,6 +27,7 @@
#include <mach/cp_intc.h>
#include <mach/da8xx.h>
#include <linux/platform_data/mtd-davinci.h>
+#include <linux/platform_data/mtd-davinci-aemif.h>
#include <mach/mux.h>
#include <linux/platform_data/spi-davinci.h>
@@ -432,6 +433,9 @@
{
platform_add_devices(mityomapl138_devices,
ARRAY_SIZE(mityomapl138_devices));
+
+ if (davinci_aemif_setup(&mityomapl138_nandflash_device))
+ pr_warn("%s: Cannot configure AEMIF.\n", __func__);
}
static const short mityomap_mii_pins[] = {
diff --git a/arch/arm/mach-davinci/da830.c b/arch/arm/mach-davinci/da830.c
index 0813b51..82c6013 100644
--- a/arch/arm/mach-davinci/da830.c
+++ b/arch/arm/mach-davinci/da830.c
@@ -385,7 +385,7 @@
CLK(NULL, "pll0_sysclk7", &pll0_sysclk7),
CLK("i2c_davinci.1", NULL, &i2c0_clk),
CLK(NULL, "timer0", &timerp64_0_clk),
- CLK("watchdog", NULL, &timerp64_1_clk),
+ CLK("davinci-wdt", NULL, &timerp64_1_clk),
CLK(NULL, "arm_rom", &arm_rom_clk),
CLK(NULL, "scr0_ss", &scr0_ss_clk),
CLK(NULL, "scr1_ss", &scr1_ss_clk),
diff --git a/arch/arm/mach-davinci/da850.c b/arch/arm/mach-davinci/da850.c
index 352984e..ccb2f58 100644
--- a/arch/arm/mach-davinci/da850.c
+++ b/arch/arm/mach-davinci/da850.c
@@ -443,7 +443,7 @@
CLK(NULL, "pll1_sysclk3", &pll1_sysclk3),
CLK("i2c_davinci.1", NULL, &i2c0_clk),
CLK(NULL, "timer0", &timerp64_0_clk),
- CLK("watchdog", NULL, &timerp64_1_clk),
+ CLK("davinci-wdt", NULL, &timerp64_1_clk),
CLK(NULL, "arm_rom", &arm_rom_clk),
CLK(NULL, "tpcc0", &tpcc0_clk),
CLK(NULL, "tptc0", &tptc0_clk),
diff --git a/arch/arm/mach-davinci/da8xx-dt.c b/arch/arm/mach-davinci/da8xx-dt.c
index d2bc574..ed19287 100644
--- a/arch/arm/mach-davinci/da8xx-dt.c
+++ b/arch/arm/mach-davinci/da8xx-dt.c
@@ -32,7 +32,7 @@
static struct of_dev_auxdata da850_auxdata_lookup[] __initdata = {
OF_DEV_AUXDATA("ti,davinci-i2c", 0x01c22000, "i2c_davinci.1", NULL),
- OF_DEV_AUXDATA("ti,davinci-wdt", 0x01c21000, "watchdog", NULL),
+ OF_DEV_AUXDATA("ti,davinci-wdt", 0x01c21000, "davinci-wdt", NULL),
OF_DEV_AUXDATA("ti,da830-mmc", 0x01c40000, "da830-mmc.0", NULL),
OF_DEV_AUXDATA("ti,da850-ehrpwm", 0x01f00000, "ehrpwm", NULL),
OF_DEV_AUXDATA("ti,da850-ehrpwm", 0x01f02000, "ehrpwm", NULL),
diff --git a/arch/arm/mach-davinci/devices-da8xx.c b/arch/arm/mach-davinci/devices-da8xx.c
index 78829c5..0486cdf 100644
--- a/arch/arm/mach-davinci/devices-da8xx.c
+++ b/arch/arm/mach-davinci/devices-da8xx.c
@@ -389,7 +389,7 @@
};
static struct platform_device da8xx_wdt_device = {
- .name = "watchdog",
+ .name = "davinci-wdt",
.id = -1,
.num_resources = ARRAY_SIZE(da8xx_watchdog_resources),
.resource = da8xx_watchdog_resources,
@@ -399,7 +399,7 @@
{
struct device *dev;
- dev = bus_find_device_by_name(&platform_bus_type, NULL, "watchdog");
+ dev = bus_find_device_by_name(&platform_bus_type, NULL, "davinci-wdt");
if (!dev) {
pr_err("%s: failed to find watchdog device\n", __func__);
return;
diff --git a/arch/arm/mach-davinci/devices.c b/arch/arm/mach-davinci/devices.c
index 3996e98..5cf9a02 100644
--- a/arch/arm/mach-davinci/devices.c
+++ b/arch/arm/mach-davinci/devices.c
@@ -302,7 +302,7 @@
};
struct platform_device davinci_wdt_device = {
- .name = "watchdog",
+ .name = "davinci-wdt",
.id = -1,
.num_resources = ARRAY_SIZE(wdt_resources),
.resource = wdt_resources,
diff --git a/arch/arm/mach-davinci/dm355.c b/arch/arm/mach-davinci/dm355.c
index 6117fc6..2b085b0 100644
--- a/arch/arm/mach-davinci/dm355.c
+++ b/arch/arm/mach-davinci/dm355.c
@@ -375,7 +375,7 @@
CLK(NULL, "pwm3", &pwm3_clk),
CLK(NULL, "timer0", &timer0_clk),
CLK(NULL, "timer1", &timer1_clk),
- CLK("watchdog", NULL, &timer2_clk),
+ CLK("davinci-wdt", NULL, &timer2_clk),
CLK(NULL, "timer3", &timer3_clk),
CLK(NULL, "rto", &rto_clk),
CLK(NULL, "usb", &usb_clk),
diff --git a/arch/arm/mach-davinci/dm365.c b/arch/arm/mach-davinci/dm365.c
index d7c6f85..77f64fd 100644
--- a/arch/arm/mach-davinci/dm365.c
+++ b/arch/arm/mach-davinci/dm365.c
@@ -473,7 +473,7 @@
CLK(NULL, "pwm3", &pwm3_clk),
CLK(NULL, "timer0", &timer0_clk),
CLK(NULL, "timer1", &timer1_clk),
- CLK("watchdog", NULL, &timer2_clk),
+ CLK("davinci-wdt", NULL, &timer2_clk),
CLK(NULL, "timer3", &timer3_clk),
CLK(NULL, "usb", &usb_clk),
CLK("davinci_emac.1", NULL, &emac_clk),
diff --git a/arch/arm/mach-davinci/dm644x.c b/arch/arm/mach-davinci/dm644x.c
index 3ce4799..7d69845 100644
--- a/arch/arm/mach-davinci/dm644x.c
+++ b/arch/arm/mach-davinci/dm644x.c
@@ -322,7 +322,7 @@
CLK(NULL, "pwm2", &pwm2_clk),
CLK(NULL, "timer0", &timer0_clk),
CLK(NULL, "timer1", &timer1_clk),
- CLK("watchdog", NULL, &timer2_clk),
+ CLK("davinci-wdt", NULL, &timer2_clk),
CLK(NULL, NULL, NULL),
};
diff --git a/arch/arm/mach-davinci/dm646x.c b/arch/arm/mach-davinci/dm646x.c
index 0e81fea..cad08e6 100644
--- a/arch/arm/mach-davinci/dm646x.c
+++ b/arch/arm/mach-davinci/dm646x.c
@@ -356,7 +356,7 @@
CLK(NULL, "pwm1", &pwm1_clk),
CLK(NULL, "timer0", &timer0_clk),
CLK(NULL, "timer1", &timer1_clk),
- CLK("watchdog", NULL, &timer2_clk),
+ CLK("davinci-wdt", NULL, &timer2_clk),
CLK("palm_bk3710", NULL, &ide_clk),
CLK(NULL, "vpif0", &vpif0_clk),
CLK(NULL, "vpif1", &vpif1_clk),
diff --git a/arch/arm/mach-keystone/Kconfig b/arch/arm/mach-keystone/Kconfig
index f20c53e..90a708f 100644
--- a/arch/arm/mach-keystone/Kconfig
+++ b/arch/arm/mach-keystone/Kconfig
@@ -10,7 +10,8 @@
select ARCH_WANT_OPTIONAL_GPIOLIB
select ARM_ERRATA_798181 if SMP
select COMMON_CLK_KEYSTONE
- select TI_EDMA
+ select ARCH_SUPPORTS_BIG_ENDIAN
+ select ZONE_DMA if ARM_LPAE
help
Support for boards based on the Texas Instruments Keystone family of
SoCs.
diff --git a/arch/arm/mach-keystone/keystone.c b/arch/arm/mach-keystone/keystone.c
index b661c5c..8db9e2c 100644
--- a/arch/arm/mach-keystone/keystone.c
+++ b/arch/arm/mach-keystone/keystone.c
@@ -14,12 +14,16 @@
#include <linux/init.h>
#include <linux/of_platform.h>
#include <linux/of_address.h>
+#include <linux/dma-mapping.h>
#include <asm/setup.h>
#include <asm/mach/map.h>
#include <asm/mach/arch.h>
#include <asm/mach/time.h>
#include <asm/smp_plat.h>
+#include <asm/memory.h>
+
+#include "memory.h"
#include "keystone.h"
@@ -28,6 +32,35 @@
#define PLL_RESET BIT(16)
static void __iomem *keystone_rstctrl;
+static struct notifier_block platform_nb;
+
+static bool is_coherent(struct device *dev)
+{
+ struct device_node *node = of_node_get(dev->of_node);
+
+ while (node) {
+ if (of_property_read_bool(node, "dma-coherent")) {
+ of_node_put(node);
+ return true;
+ }
+ node = of_get_next_parent(node);
+ }
+ return false;
+}
+
+static int keystone_platform_notifier(struct notifier_block *nb,
+ unsigned long event, void *dev)
+{
+ if (event != BUS_NOTIFY_ADD_DEVICE)
+ return NOTIFY_DONE;
+
+ if (is_coherent(dev)) {
+ set_dma_ops(dev, &arm_coherent_dma_ops);
+ pr_info("\t\t%s: keystone device is coherent\n", dev_name(dev));
+ }
+
+ return NOTIFY_OK;
+}
static void __init keystone_init(void)
{
@@ -41,9 +74,88 @@
if (WARN_ON(!keystone_rstctrl))
pr_warn("ti,keystone-reset iomap error\n");
+ keystone_pm_runtime_init();
+ if (platform_nb.notifier_call)
+ bus_register_notifier(&platform_bus_type, &platform_nb);
of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
}
+static phys_addr_t keystone_virt_to_idmap(unsigned long x)
+{
+ return (phys_addr_t)(x) - CONFIG_PAGE_OFFSET + KEYSTONE_LOW_PHYS_START;
+}
+
+static unsigned long keystone_dma_pfn_offset __read_mostly;
+
+static dma_addr_t keystone_pfn_to_dma(struct device *dev, unsigned long pfn)
+{
+ return PFN_PHYS(pfn - keystone_dma_pfn_offset);
+}
+
+static unsigned long keystone_dma_to_pfn(struct device *dev, dma_addr_t addr)
+{
+ return PFN_DOWN(addr) + keystone_dma_pfn_offset;
+}
+
+static void *keystone_dma_to_virt(struct device *dev, dma_addr_t addr)
+{
+ return phys_to_virt(addr + PFN_PHYS(keystone_dma_pfn_offset));
+}
+
+static dma_addr_t keystone_virt_to_dma(struct device *dev, void *addr)
+{
+ return virt_to_phys(addr) - PFN_PHYS(keystone_dma_pfn_offset);
+}
+
+static void __init keystone_init_meminfo(void)
+{
+ bool lpae = IS_ENABLED(CONFIG_ARM_LPAE);
+ bool pvpatch = IS_ENABLED(CONFIG_ARM_PATCH_PHYS_VIRT);
+ phys_addr_t offset = PHYS_OFFSET - KEYSTONE_LOW_PHYS_START;
+ phys_addr_t mem_start, mem_end;
+
+ BUG_ON(meminfo.nr_banks < 1);
+ mem_start = meminfo.bank[0].start;
+ mem_end = mem_start + meminfo.bank[0].size - 1;
+
+ /* nothing to do if we are running out of the <32-bit space */
+ if (mem_start >= KEYSTONE_LOW_PHYS_START &&
+ mem_end <= KEYSTONE_LOW_PHYS_END)
+ return;
+
+ if (!lpae || !pvpatch) {
+ pr_crit("Enable %s%s%s to run outside 32-bit space\n",
+ !lpae ? __stringify(CONFIG_ARM_LPAE) : "",
+ (!lpae && !pvpatch) ? " and " : "",
+ !pvpatch ? __stringify(CONFIG_ARM_PATCH_PHYS_VIRT) : "");
+ }
+
+ if (mem_start < KEYSTONE_HIGH_PHYS_START ||
+ mem_end > KEYSTONE_HIGH_PHYS_END) {
+ pr_crit("Invalid address space for memory (%08llx-%08llx)\n",
+ (u64)mem_start, (u64)mem_end);
+ }
+
+ offset += KEYSTONE_HIGH_PHYS_START;
+ __pv_phys_offset = offset;
+ __pv_offset = (offset - PAGE_OFFSET);
+
+ /* Populate the arch idmap hook */
+ arch_virt_to_idmap = keystone_virt_to_idmap;
+
+ /* Populate the arch DMA hooks */
+ keystone_dma_pfn_offset = PFN_DOWN(KEYSTONE_HIGH_PHYS_START -
+ KEYSTONE_LOW_PHYS_START);
+ __arch_pfn_to_dma = keystone_pfn_to_dma;
+ __arch_dma_to_pfn = keystone_dma_to_pfn;
+ __arch_dma_to_virt = keystone_dma_to_virt;
+ __arch_virt_to_dma = keystone_virt_to_dma;
+
+ platform_nb.notifier_call = keystone_platform_notifier;
+
+ pr_info("Switching to high address space at 0x%llx\n", (u64)offset);
+}
+
static const char *keystone_match[] __initconst = {
"ti,keystone-evm",
NULL,
@@ -68,8 +180,12 @@
}
DT_MACHINE_START(KEYSTONE, "Keystone")
+#if defined(CONFIG_ZONE_DMA) && defined(CONFIG_ARM_LPAE)
+ .dma_zone_size = SZ_2G,
+#endif
.smp = smp_ops(keystone_smp_ops),
.init_machine = keystone_init,
.dt_compat = keystone_match,
.restart = keystone_restart,
+ .init_meminfo = keystone_init_meminfo,
MACHINE_END
diff --git a/arch/arm/mach-keystone/keystone.h b/arch/arm/mach-keystone/keystone.h
index 60bef9d..cd04a1c 100644
--- a/arch/arm/mach-keystone/keystone.h
+++ b/arch/arm/mach-keystone/keystone.h
@@ -18,6 +18,7 @@
extern struct smp_operations keystone_smp_ops;
extern void secondary_startup(void);
extern u32 keystone_cpu_smc(u32 command, u32 cpu, u32 addr);
+extern int keystone_pm_runtime_init(void);
#endif /* __ASSEMBLER__ */
#endif /* __KEYSTONE_H__ */
diff --git a/arch/arm/mach-keystone/memory.h b/arch/arm/mach-keystone/memory.h
new file mode 100644
index 0000000..b854fb1
--- /dev/null
+++ b/arch/arm/mach-keystone/memory.h
@@ -0,0 +1,24 @@
+/*
+ * Copyright 2014 Texas Instruments, Inc.
+ * Santosh Shilimkar <santosh.shilimkar@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ */
+#ifndef __MEMORY_H
+#define __MEMORY_H
+
+#define MAX_PHYSMEM_BITS 36
+#define SECTION_SIZE_BITS 34
+
+#define KEYSTONE_LOW_PHYS_START 0x80000000ULL
+#define KEYSTONE_LOW_PHYS_SIZE 0x80000000ULL /* 2G */
+#define KEYSTONE_LOW_PHYS_END (KEYSTONE_LOW_PHYS_START + \
+ KEYSTONE_LOW_PHYS_SIZE - 1)
+
+#define KEYSTONE_HIGH_PHYS_START 0x800000000ULL
+#define KEYSTONE_HIGH_PHYS_SIZE 0x400000000ULL /* 16G */
+#define KEYSTONE_HIGH_PHYS_END (KEYSTONE_HIGH_PHYS_START + \
+ KEYSTONE_HIGH_PHYS_SIZE - 1)
+#endif /* __MEMORY_H */
diff --git a/arch/arm/mach-keystone/platsmp.c b/arch/arm/mach-keystone/platsmp.c
index 5cf0683..5f46a7c 100644
--- a/arch/arm/mach-keystone/platsmp.c
+++ b/arch/arm/mach-keystone/platsmp.c
@@ -17,13 +17,16 @@
#include <linux/io.h>
#include <asm/smp_plat.h>
+#include <asm/prom.h>
+#include <asm/tlbflush.h>
+#include <asm/pgtable.h>
#include "keystone.h"
static int keystone_smp_boot_secondary(unsigned int cpu,
struct task_struct *idle)
{
- unsigned long start = virt_to_phys(&secondary_startup);
+ unsigned long start = virt_to_idmap(&secondary_startup);
int error;
pr_debug("keystone-smp: booting cpu %d, vector %08lx\n",
@@ -36,6 +39,19 @@
return error;
}
+#ifdef CONFIG_ARM_LPAE
+static void __cpuinit keystone_smp_secondary_initmem(unsigned int cpu)
+{
+ pgd_t *pgd0 = pgd_offset_k(0);
+ cpu_set_ttbr(1, __pa(pgd0) + TTBR1_OFFSET);
+ local_flush_tlb_all();
+}
+#else
+static inline void __cpuinit keystone_smp_secondary_initmem(unsigned int cpu)
+{}
+#endif
+
struct smp_operations keystone_smp_ops __initdata = {
.smp_boot_secondary = keystone_smp_boot_secondary,
+ .smp_secondary_init = keystone_smp_secondary_initmem,
};
diff --git a/arch/arm/mach-keystone/pm_domain.c b/arch/arm/mach-keystone/pm_domain.c
index 2962523..ca79dda 100644
--- a/arch/arm/mach-keystone/pm_domain.c
+++ b/arch/arm/mach-keystone/pm_domain.c
@@ -74,9 +74,7 @@
if (!np)
return 0;
- of_clk_init(NULL);
pm_clk_add_notifier(&platform_bus_type, &platform_domain_notifier);
return 0;
}
-subsys_initcall(keystone_pm_runtime_init);
diff --git a/drivers/clk/keystone/gate.c b/drivers/clk/keystone/gate.c
index 1f333bc..86f1e36 100644
--- a/drivers/clk/keystone/gate.c
+++ b/drivers/clk/keystone/gate.c
@@ -179,6 +179,7 @@
init.name = name;
init.ops = &clk_psc_ops;
+ init.flags = 0;
init.parent_names = (parent_name ? &parent_name : NULL);
init.num_parents = (parent_name ? 1 : 0);
@@ -223,8 +224,7 @@
data->domain_base = of_iomap(node, i);
if (!data->domain_base) {
pr_err("%s: domain ioremap failed\n", __func__);
- iounmap(data->control_base);
- goto out;
+ goto unmap_ctrl;
}
of_property_read_u32(node, "domain-id", &data->domain_id);
@@ -237,16 +237,21 @@
parent_name = of_clk_get_parent_name(node, 0);
if (!parent_name) {
pr_err("%s: Parent clock not found\n", __func__);
- goto out;
+ goto unmap_domain;
}
clk = clk_register_psc(NULL, clk_name, parent_name, data, lock);
- if (clk) {
+ if (!IS_ERR(clk)) {
of_clk_add_provider(node, of_clk_src_simple_get, clk);
return;
}
pr_err("%s: error registering clk %s\n", __func__, node->name);
+
+unmap_domain:
+ iounmap(data->domain_base);
+unmap_ctrl:
+ iounmap(data->control_base);
out:
kfree(data);
return;
diff --git a/drivers/clk/keystone/pll.c b/drivers/clk/keystone/pll.c
index 47a1bd9..0dd8a4b 100644
--- a/drivers/clk/keystone/pll.c
+++ b/drivers/clk/keystone/pll.c
@@ -24,6 +24,8 @@
#define MAIN_PLLM_HIGH_MASK 0x7f000
#define PLLM_HIGH_SHIFT 6
#define PLLD_MASK 0x3f
+#define CLKOD_MASK 0x780000
+#define CLKOD_SHIFT 19
/**
* struct clk_pll_data - pll data structure
@@ -41,7 +43,10 @@
* @pllm_upper_mask: multiplier upper mask
* @pllm_upper_shift: multiplier upper shift
* @plld_mask: divider mask
- * @postdiv: Post divider
+ * @clkod_mask: output divider mask
+ * @clkod_shift: output divider shift
+ * @plld_mask: divider mask
+ * @postdiv: Fixed post divider
*/
struct clk_pll_data {
bool has_pllctrl;
@@ -53,6 +58,8 @@
u32 pllm_upper_mask;
u32 pllm_upper_shift;
u32 plld_mask;
+ u32 clkod_mask;
+ u32 clkod_shift;
u32 postdiv;
};
@@ -90,7 +97,13 @@
mult |= ((val & pll_data->pllm_upper_mask)
>> pll_data->pllm_upper_shift);
prediv = (val & pll_data->plld_mask);
- postdiv = pll_data->postdiv;
+
+ if (!pll_data->has_pllctrl)
+ /* read post divider from od bits*/
+ postdiv = ((val & pll_data->clkod_mask) >>
+ pll_data->clkod_shift) + 1;
+ else
+ postdiv = pll_data->postdiv;
rate /= (prediv + 1);
rate = (rate * (mult + 1));
@@ -155,8 +168,11 @@
}
parent_name = of_clk_get_parent_name(node, 0);
- if (of_property_read_u32(node, "fixed-postdiv", &pll_data->postdiv))
- goto out;
+ if (of_property_read_u32(node, "fixed-postdiv", &pll_data->postdiv)) {
+ /* assume the PLL has output divider register bits */
+ pll_data->clkod_mask = CLKOD_MASK;
+ pll_data->clkod_shift = CLKOD_SHIFT;
+ }
i = of_property_match_string(node, "reg-names", "control");
pll_data->pll_ctl0 = of_iomap(node, i);
diff --git a/drivers/clocksource/Makefile b/drivers/clocksource/Makefile
index 33621ef..2acf3fc 100644
--- a/drivers/clocksource/Makefile
+++ b/drivers/clocksource/Makefile
@@ -36,3 +36,4 @@
obj-$(CONFIG_ARM_GLOBAL_TIMER) += arm_global_timer.o
obj-$(CONFIG_CLKSRC_METAG_GENERIC) += metag_generic.o
obj-$(CONFIG_ARCH_HAS_TICK_BROADCAST) += dummy_timer.o
+obj-$(CONFIG_ARCH_KEYSTONE) += timer-keystone.o
diff --git a/drivers/clocksource/timer-keystone.c b/drivers/clocksource/timer-keystone.c
new file mode 100644
index 0000000..2299666
--- /dev/null
+++ b/drivers/clocksource/timer-keystone.c
@@ -0,0 +1,233 @@
+/*
+ * Keystone broadcast clock-event
+ *
+ * Copyright 2013 Texas Instruments, Inc.
+ *
+ * Author: Ivan Khoronzhuk <ivan.khoronzhuk@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/clk.h>
+#include <linux/clockchips.h>
+#include <linux/clocksource.h>
+#include <linux/interrupt.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
+
+#define TIMER_NAME "timer-keystone"
+
+/* Timer register offsets */
+#define TIM12 0x10
+#define TIM34 0x14
+#define PRD12 0x18
+#define PRD34 0x1c
+#define TCR 0x20
+#define TGCR 0x24
+#define INTCTLSTAT 0x44
+
+/* Timer register bitfields */
+#define TCR_ENAMODE_MASK 0xC0
+#define TCR_ENAMODE_ONESHOT_MASK 0x40
+#define TCR_ENAMODE_PERIODIC_MASK 0x80
+
+#define TGCR_TIM_UNRESET_MASK 0x03
+#define INTCTLSTAT_ENINT_MASK 0x01
+
+/**
+ * struct keystone_timer: holds timer's data
+ * @base: timer memory base address
+ * @hz_period: cycles per HZ period
+ * @event_dev: event device based on timer
+ */
+static struct keystone_timer {
+ void __iomem *base;
+ unsigned long hz_period;
+ struct clock_event_device event_dev;
+} timer;
+
+static inline u32 keystone_timer_readl(unsigned long rg)
+{
+ return readl_relaxed(timer.base + rg);
+}
+
+static inline void keystone_timer_writel(u32 val, unsigned long rg)
+{
+ writel_relaxed(val, timer.base + rg);
+}
+
+/**
+ * keystone_timer_config: configures timer to work in oneshot/periodic modes.
+ * @ mode: mode to configure
+ * @ period: cycles number to configure for
+ */
+static int keystone_timer_config(u64 period, enum clock_event_mode mode)
+{
+ u32 tcr;
+ u32 off;
+
+ tcr = keystone_timer_readl(TCR);
+ off = tcr & ~(TCR_ENAMODE_MASK);
+
+ /* set enable mode */
+ switch (mode) {
+ case CLOCK_EVT_MODE_ONESHOT:
+ tcr |= TCR_ENAMODE_ONESHOT_MASK;
+ break;
+ case CLOCK_EVT_MODE_PERIODIC:
+ tcr |= TCR_ENAMODE_PERIODIC_MASK;
+ break;
+ default:
+ return -1;
+ }
+
+ /* disable timer */
+ keystone_timer_writel(off, TCR);
+ /* here we have to be sure the timer has been disabled */
+ __iowmb();
+
+ /* reset counter to zero, set new period */
+ keystone_timer_writel(0, TIM12);
+ keystone_timer_writel(0, TIM34);
+ keystone_timer_writel(period & 0xffffffff, PRD12);
+ keystone_timer_writel(period >> 32, PRD34);
+
+ /*
+ * enable timer
+ * here we have to be sure that CNTLO, CNTHI, PRDLO, PRDHI registers
+ * have been written.
+ */
+ __iowmb();
+ keystone_timer_writel(tcr, TCR);
+ return 0;
+}
+
+static void keystone_timer_disable(void)
+{
+ u32 tcr;
+
+ tcr = keystone_timer_readl(TCR);
+
+ /* disable timer */
+ tcr &= ~(TCR_ENAMODE_MASK);
+ keystone_timer_writel(tcr, TCR);
+}
+
+static irqreturn_t keystone_timer_interrupt(int irq, void *dev_id)
+{
+ struct clock_event_device *evt = dev_id;
+
+ evt->event_handler(evt);
+ return IRQ_HANDLED;
+}
+
+static int keystone_set_next_event(unsigned long cycles,
+ struct clock_event_device *evt)
+{
+ return keystone_timer_config(cycles, evt->mode);
+}
+
+static void keystone_set_mode(enum clock_event_mode mode,
+ struct clock_event_device *evt)
+{
+ switch (mode) {
+ case CLOCK_EVT_MODE_PERIODIC:
+ keystone_timer_config(timer.hz_period, CLOCK_EVT_MODE_PERIODIC);
+ break;
+ case CLOCK_EVT_MODE_UNUSED:
+ case CLOCK_EVT_MODE_SHUTDOWN:
+ case CLOCK_EVT_MODE_ONESHOT:
+ keystone_timer_disable();
+ break;
+ default:
+ break;
+ }
+}
+
+static void __init keystone_timer_init(struct device_node *np)
+{
+ struct clock_event_device *event_dev = &timer.event_dev;
+ unsigned long rate;
+ struct clk *clk;
+ int irq, error;
+ u32 tgcr;
+
+ irq = irq_of_parse_and_map(np, 0);
+ if (irq == NO_IRQ) {
+ pr_err("%s: failed to map interrupts\n", __func__);
+ return;
+ }
+
+ timer.base = of_iomap(np, 0);
+ if (!timer.base) {
+ pr_err("%s: failed to map registers\n", __func__);
+ return;
+ }
+
+ clk = of_clk_get(np, 0);
+ if (!clk) {
+ pr_err("%s: failed to get clock\n", __func__);
+ iounmap(timer.base);
+ return;
+ }
+
+ error = clk_prepare_enable(clk);
+ if (error) {
+ pr_err("%s: failed to enable clock\n", __func__);
+ goto err;
+ }
+
+ rate = clk_get_rate(clk);
+
+ /* disable, use internal clock source */
+ keystone_timer_writel(0, TCR);
+ /* here we have to be sure the timer has been disabled */
+ __iowmb();
+
+ /* reset timer as 64-bit, no pre-scaler, plus features are disabled */
+ tgcr = 0;
+ keystone_timer_writel(0, TGCR);
+
+ /* unreset timer */
+ tgcr |= TGCR_TIM_UNRESET_MASK;
+ keystone_timer_writel(tgcr, TGCR);
+
+ /* init counter to zero */
+ keystone_timer_writel(0, TIM12);
+ keystone_timer_writel(0, TIM34);
+
+ timer.hz_period = DIV_ROUND_UP(rate, HZ);
+
+ /* enable timer interrupts */
+ keystone_timer_writel(INTCTLSTAT_ENINT_MASK, INTCTLSTAT);
+
+ error = request_irq(irq, keystone_timer_interrupt, IRQF_TIMER,
+ TIMER_NAME, event_dev);
+ if (error) {
+ pr_err("%s: failed to setup irq\n", __func__);
+ goto err;
+ }
+
+ /* setup clockevent */
+ event_dev->features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT;
+ event_dev->set_next_event = keystone_set_next_event;
+ event_dev->set_mode = keystone_set_mode;
+ event_dev->cpumask = cpu_all_mask;
+ event_dev->owner = THIS_MODULE;
+ event_dev->name = TIMER_NAME;
+ event_dev->irq = irq;
+
+ clockevents_config_and_register(event_dev, rate, 1, ULONG_MAX);
+
+ pr_info("keystone timer clock @%lu Hz\n", rate);
+ return;
+err:
+ clk_put(clk);
+ iounmap(timer.base);
+}
+
+CLOCKSOURCE_OF_DECLARE(keystone_timer, "ti,keystone-timer",
+ keystone_timer_init);
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index 0f04444..7c75f5a 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -115,6 +115,13 @@
help
Say yes here to support GPIO on CLPS711X SoCs.
+config GPIO_DAVINCI
+ bool "TI Davinci/Keystone GPIO support"
+ default y if ARCH_DAVINCI
+ depends on ARM && (ARCH_DAVINCI || ARCH_KEYSTONE)
+ help
+ Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
+
config GPIO_GENERIC_PLATFORM
tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
select GPIO_GENERIC
diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile
index 7971e36..28a0ffc 100644
--- a/drivers/gpio/Makefile
+++ b/drivers/gpio/Makefile
@@ -22,7 +22,7 @@
obj-$(CONFIG_GPIO_CS5535) += gpio-cs5535.o
obj-$(CONFIG_GPIO_DA9052) += gpio-da9052.o
obj-$(CONFIG_GPIO_DA9055) += gpio-da9055.o
-obj-$(CONFIG_ARCH_DAVINCI) += gpio-davinci.o
+obj-$(CONFIG_GPIO_DAVINCI) += gpio-davinci.o
obj-$(CONFIG_GPIO_EM) += gpio-em.o
obj-$(CONFIG_GPIO_EP93XX) += gpio-ep93xx.o
obj-$(CONFIG_GPIO_F7188X) += gpio-f7188x.o
diff --git a/drivers/gpio/gpio-davinci.c b/drivers/gpio/gpio-davinci.c
index 84be701..099b982 100644
--- a/drivers/gpio/gpio-davinci.c
+++ b/drivers/gpio/gpio-davinci.c
@@ -16,8 +16,13 @@
#include <linux/err.h>
#include <linux/io.h>
#include <linux/irq.h>
+#include <linux/irqdomain.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/platform_data/gpio-davinci.h>
+#include <linux/irqchip/chained_irq.h>
struct davinci_gpio_regs {
u32 dir;
@@ -32,6 +37,8 @@
u32 intstat;
};
+typedef struct irq_chip *(*gpio_get_irq_chip_cb_t)(unsigned int irq);
+
#define BINTEN 0x8 /* GPIO Interrupt Per-Bank Enable Register */
#define chip2controller(chip) \
@@ -82,14 +89,14 @@
u32 mask = 1 << offset;
spin_lock_irqsave(&d->lock, flags);
- temp = __raw_readl(&g->dir);
+ temp = readl_relaxed(&g->dir);
if (out) {
temp &= ~mask;
- __raw_writel(mask, value ? &g->set_data : &g->clr_data);
+ writel_relaxed(mask, value ? &g->set_data : &g->clr_data);
} else {
temp |= mask;
}
- __raw_writel(temp, &g->dir);
+ writel_relaxed(temp, &g->dir);
spin_unlock_irqrestore(&d->lock, flags);
return 0;
@@ -118,7 +125,7 @@
struct davinci_gpio_controller *d = chip2controller(chip);
struct davinci_gpio_regs __iomem *g = d->regs;
- return (1 << offset) & __raw_readl(&g->in_data);
+ return (1 << offset) & readl_relaxed(&g->in_data);
}
/*
@@ -130,7 +137,41 @@
struct davinci_gpio_controller *d = chip2controller(chip);
struct davinci_gpio_regs __iomem *g = d->regs;
- __raw_writel((1 << offset), value ? &g->set_data : &g->clr_data);
+ writel_relaxed((1 << offset), value ? &g->set_data : &g->clr_data);
+}
+
+static struct davinci_gpio_platform_data *
+davinci_gpio_get_pdata(struct platform_device *pdev)
+{
+ struct device_node *dn = pdev->dev.of_node;
+ struct davinci_gpio_platform_data *pdata;
+ int ret;
+ u32 val;
+
+ if (!IS_ENABLED(CONFIG_OF) || !pdev->dev.of_node)
+ return pdev->dev.platform_data;
+
+ pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
+ if (!pdata)
+ return NULL;
+
+ ret = of_property_read_u32(dn, "ti,ngpio", &val);
+ if (ret)
+ goto of_err;
+
+ pdata->ngpio = val;
+
+ ret = of_property_read_u32(dn, "ti,davinci-gpio-unbanked", &val);
+ if (ret)
+ goto of_err;
+
+ pdata->gpio_unbanked = val;
+
+ return pdata;
+
+of_err:
+ dev_err(&pdev->dev, "Populating pdata from DT failed: err %d\n", ret);
+ return NULL;
}
static int davinci_gpio_probe(struct platform_device *pdev)
@@ -143,12 +184,14 @@
struct device *dev = &pdev->dev;
struct resource *res;
- pdata = dev->platform_data;
+ pdata = davinci_gpio_get_pdata(pdev);
if (!pdata) {
dev_err(dev, "No platform data found\n");
return -EINVAL;
}
+ dev->platform_data = pdata;
+
/*
* The gpio banks conceptually expose a segmented bitmap,
* and "ngpio" is one more than the largest zero-based
@@ -160,8 +203,8 @@
return -EINVAL;
}
- if (WARN_ON(DAVINCI_N_GPIO < ngpio))
- ngpio = DAVINCI_N_GPIO;
+ if (WARN_ON(ARCH_NR_GPIOS < ngpio))
+ ngpio = ARCH_NR_GPIOS;
chips = devm_kzalloc(dev,
ngpio * sizeof(struct davinci_gpio_controller),
@@ -172,11 +215,6 @@
}
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!res) {
- dev_err(dev, "Invalid memory resource\n");
- return -EBUSY;
- }
-
gpio_base = devm_ioremap_resource(dev, res);
if (IS_ERR(gpio_base))
return PTR_ERR(gpio_base);
@@ -194,6 +232,9 @@
if (chips[i].chip.ngpio > 32)
chips[i].chip.ngpio = 32;
+#ifdef CONFIG_OF_GPIO
+ chips[i].chip.of_node = dev->of_node;
+#endif
spin_lock_init(&chips[i].lock);
regs = gpio2regs(base);
@@ -227,8 +268,8 @@
struct davinci_gpio_regs __iomem *g = irq2regs(d->irq);
u32 mask = (u32) irq_data_get_irq_handler_data(d);
- __raw_writel(mask, &g->clr_falling);
- __raw_writel(mask, &g->clr_rising);
+ writel_relaxed(mask, &g->clr_falling);
+ writel_relaxed(mask, &g->clr_rising);
}
static void gpio_irq_enable(struct irq_data *d)
@@ -242,9 +283,9 @@
status = IRQ_TYPE_EDGE_FALLING | IRQ_TYPE_EDGE_RISING;
if (status & IRQ_TYPE_EDGE_FALLING)
- __raw_writel(mask, &g->set_falling);
+ writel_relaxed(mask, &g->set_falling);
if (status & IRQ_TYPE_EDGE_RISING)
- __raw_writel(mask, &g->set_rising);
+ writel_relaxed(mask, &g->set_rising);
}
static int gpio_irq_type(struct irq_data *d, unsigned trigger)
@@ -278,34 +319,28 @@
mask <<= 16;
/* temporarily mask (level sensitive) parent IRQ */
- desc->irq_data.chip->irq_mask(&desc->irq_data);
- desc->irq_data.chip->irq_ack(&desc->irq_data);
+ chained_irq_enter(irq_desc_get_chip(desc), desc);
while (1) {
u32 status;
- int n;
- int res;
+ int bit;
/* ack any irqs */
- status = __raw_readl(&g->intstat) & mask;
+ status = readl_relaxed(&g->intstat) & mask;
if (!status)
break;
- __raw_writel(status, &g->intstat);
+ writel_relaxed(status, &g->intstat);
/* now demux them to the right lowlevel handler */
- n = d->irq_base;
- if (irq & 1) {
- n += 16;
- status >>= 16;
- }
while (status) {
- res = ffs(status);
- n += res;
- generic_handle_irq(n - 1);
- status >>= res;
+ bit = __ffs(status);
+ status &= ~BIT(bit);
+ generic_handle_irq(
+ irq_find_mapping(d->irq_domain,
+ d->chip.base + bit));
}
}
- desc->irq_data.chip->irq_unmask(&desc->irq_data);
+ chained_irq_exit(irq_desc_get_chip(desc), desc);
/* now it may re-trigger */
}
@@ -313,10 +348,10 @@
{
struct davinci_gpio_controller *d = chip2controller(chip);
- if (d->irq_base >= 0)
- return d->irq_base + offset;
+ if (d->irq_domain)
+ return irq_create_mapping(d->irq_domain, d->chip.base + offset);
else
- return -ENODEV;
+ return -ENXIO;
}
static int gpio_to_irq_unbanked(struct gpio_chip *chip, unsigned offset)
@@ -346,14 +381,55 @@
if (trigger & ~(IRQ_TYPE_EDGE_FALLING | IRQ_TYPE_EDGE_RISING))
return -EINVAL;
- __raw_writel(mask, (trigger & IRQ_TYPE_EDGE_FALLING)
+ writel_relaxed(mask, (trigger & IRQ_TYPE_EDGE_FALLING)
? &g->set_falling : &g->clr_falling);
- __raw_writel(mask, (trigger & IRQ_TYPE_EDGE_RISING)
+ writel_relaxed(mask, (trigger & IRQ_TYPE_EDGE_RISING)
? &g->set_rising : &g->clr_rising);
return 0;
}
+static int
+davinci_gpio_irq_map(struct irq_domain *d, unsigned int irq,
+ irq_hw_number_t hw)
+{
+ struct davinci_gpio_regs __iomem *g = gpio2regs(hw);
+
+ irq_set_chip_and_handler_name(irq, &gpio_irqchip, handle_simple_irq,
+ "davinci_gpio");
+ irq_set_irq_type(irq, IRQ_TYPE_NONE);
+ irq_set_chip_data(irq, (__force void *)g);
+ irq_set_handler_data(irq, (void *)__gpio_mask(hw));
+ set_irq_flags(irq, IRQF_VALID);
+
+ return 0;
+}
+
+static const struct irq_domain_ops davinci_gpio_irq_ops = {
+ .map = davinci_gpio_irq_map,
+ .xlate = irq_domain_xlate_onetwocell,
+};
+
+static struct irq_chip *davinci_gpio_get_irq_chip(unsigned int irq)
+{
+ static struct irq_chip_type gpio_unbanked;
+
+ gpio_unbanked = *container_of(irq_get_chip(irq),
+ struct irq_chip_type, chip);
+
+ return &gpio_unbanked.chip;
+};
+
+static struct irq_chip *keystone_gpio_get_irq_chip(unsigned int irq)
+{
+ static struct irq_chip gpio_unbanked;
+
+ gpio_unbanked = *irq_get_chip(irq);
+ return &gpio_unbanked;
+};
+
+static const struct of_device_id davinci_gpio_ids[];
+
/*
* NOTE: for suspend/resume, probably best to make a platform_device with
* suspend_late/resume_resume calls hooking into results of the set_wake()
@@ -364,7 +440,7 @@
static int davinci_gpio_irq_setup(struct platform_device *pdev)
{
- unsigned gpio, irq, bank;
+ unsigned gpio, bank;
struct clk *clk;
u32 binten = 0;
unsigned ngpio, bank_irq;
@@ -373,6 +449,20 @@
struct davinci_gpio_controller *chips = platform_get_drvdata(pdev);
struct davinci_gpio_platform_data *pdata = dev->platform_data;
struct davinci_gpio_regs __iomem *g;
+ struct irq_domain *irq_domain = NULL;
+ int irq;
+ const struct of_device_id *match;
+ struct irq_chip *irq_chip;
+ gpio_get_irq_chip_cb_t gpio_get_irq_chip;
+
+ /*
+ * Use davinci_gpio_get_irq_chip by default to handle non DT cases
+ */
+ gpio_get_irq_chip = davinci_gpio_get_irq_chip;
+ match = of_match_device(of_match_ptr(davinci_gpio_ids),
+ dev);
+ if (match)
+ gpio_get_irq_chip = (gpio_get_irq_chip_cb_t)match->data;
ngpio = pdata->ngpio;
res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
@@ -396,6 +486,22 @@
}
clk_prepare_enable(clk);
+ if (!pdata->gpio_unbanked) {
+ irq = irq_alloc_descs(-1, 0, ngpio, 0);
+ if (irq < 0) {
+ dev_err(dev, "Couldn't allocate IRQ numbers\n");
+ return irq;
+ }
+
+ irq_domain = irq_domain_add_legacy(NULL, ngpio, irq, 0,
+ &davinci_gpio_irq_ops,
+ chips);
+ if (!irq_domain) {
+ dev_err(dev, "Couldn't register an IRQ domain\n");
+ return -ENODEV;
+ }
+ }
+
/*
* Arrange gpio_to_irq() support, handling either direct IRQs or
* banked IRQs. Having GPIOs in the first GPIO bank use direct
@@ -404,9 +510,7 @@
*/
for (gpio = 0, bank = 0; gpio < ngpio; bank++, gpio += 32) {
chips[bank].chip.to_irq = gpio_to_irq_banked;
- chips[bank].irq_base = pdata->gpio_unbanked
- ? -EINVAL
- : (pdata->intc_irq_num + gpio);
+ chips[bank].irq_domain = irq_domain;
}
/*
@@ -415,8 +519,6 @@
* IRQ mux conflicts; gpio_irq_type_unbanked() is only for GPIOs.
*/
if (pdata->gpio_unbanked) {
- static struct irq_chip_type gpio_unbanked;
-
/* pass "bank 0" GPIO IRQs to AINTC */
chips[0].chip.to_irq = gpio_to_irq_unbanked;
chips[0].gpio_irq = bank_irq;
@@ -425,19 +527,18 @@
/* AINTC handles mask/unmask; GPIO handles triggering */
irq = bank_irq;
- gpio_unbanked = *container_of(irq_get_chip(irq),
- struct irq_chip_type, chip);
- gpio_unbanked.chip.name = "GPIO-AINTC";
- gpio_unbanked.chip.irq_set_type = gpio_irq_type_unbanked;
+ irq_chip = gpio_get_irq_chip(irq);
+ irq_chip->name = "GPIO-AINTC";
+ irq_chip->irq_set_type = gpio_irq_type_unbanked;
/* default trigger: both edges */
g = gpio2regs(0);
- __raw_writel(~0, &g->set_falling);
- __raw_writel(~0, &g->set_rising);
+ writel_relaxed(~0, &g->set_falling);
+ writel_relaxed(~0, &g->set_rising);
/* set the direct IRQs up to use that irqchip */
for (gpio = 0; gpio < pdata->gpio_unbanked; gpio++, irq++) {
- irq_set_chip(irq, &gpio_unbanked.chip);
+ irq_set_chip(irq, irq_chip);
irq_set_handler_data(irq, &chips[gpio / 32]);
irq_set_status_flags(irq, IRQ_TYPE_EDGE_BOTH);
}
@@ -449,15 +550,11 @@
* Or, AINTC can handle IRQs for banks of 16 GPIO IRQs, which we
* then chain through our own handler.
*/
- for (gpio = 0, irq = gpio_to_irq(0), bank = 0;
- gpio < ngpio;
- bank++, bank_irq++) {
- unsigned i;
-
+ for (gpio = 0, bank = 0; gpio < ngpio; bank++, bank_irq++, gpio += 16) {
/* disabled by default, enabled only as needed */
g = gpio2regs(gpio);
- __raw_writel(~0, &g->clr_falling);
- __raw_writel(~0, &g->clr_rising);
+ writel_relaxed(~0, &g->clr_falling);
+ writel_relaxed(~0, &g->clr_rising);
/* set up all irqs in this bank */
irq_set_chained_handler(bank_irq, gpio_irq_handler);
@@ -469,14 +566,6 @@
*/
irq_set_handler_data(bank_irq, &chips[gpio / 32]);
- for (i = 0; i < 16 && gpio < ngpio; i++, irq++, gpio++) {
- irq_set_chip(irq, &gpio_irqchip);
- irq_set_chip_data(irq, (__force void *)g);
- irq_set_handler_data(irq, (void *)__gpio_mask(gpio));
- irq_set_handler(irq, handle_simple_irq);
- set_irq_flags(irq, IRQF_VALID);
- }
-
binten |= BIT(bank);
}
@@ -485,18 +574,26 @@
* BINTEN -- per-bank interrupt enable. genirq would also let these
* bits be set/cleared dynamically.
*/
- __raw_writel(binten, gpio_base + BINTEN);
-
- printk(KERN_INFO "DaVinci: %d gpio irqs\n", irq - gpio_to_irq(0));
+ writel_relaxed(binten, gpio_base + BINTEN);
return 0;
}
+#if IS_ENABLED(CONFIG_OF)
+static const struct of_device_id davinci_gpio_ids[] = {
+ { .compatible = "ti,keystone-gpio", keystone_gpio_get_irq_chip},
+ { .compatible = "ti,dm6441-gpio", davinci_gpio_get_irq_chip},
+ { /* sentinel */ },
+};
+MODULE_DEVICE_TABLE(of, davinci_gpio_ids);
+#endif
+
static struct platform_driver davinci_gpio_driver = {
.probe = davinci_gpio_probe,
.driver = {
- .name = "davinci_gpio",
- .owner = THIS_MODULE,
+ .name = "davinci_gpio",
+ .owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(davinci_gpio_ids),
},
};
diff --git a/drivers/memory/Kconfig b/drivers/memory/Kconfig
index 29a11db..7bc3982 100644
--- a/drivers/memory/Kconfig
+++ b/drivers/memory/Kconfig
@@ -7,6 +7,17 @@
if MEMORY
+config TI_AEMIF
+ tristate "Texas Instruments AEMIF driver"
+ depends on (ARCH_DAVINCI || ARCH_KEYSTONE) && OF
+ help
+ This driver is for the AEMIF module available in Texas Instruments
+ SoCs. AEMIF stands for Asynchronous External Memory Interface and
+ is intended to provide a glue-less interface to a variety of
+ asynchronuous memory devices like ASRAM, NOR and NAND memory. A total
+ of 256M bytes of any of these memories can be accessed at a given
+ time via four chip selects with 64M byte access per chip select.
+
config TI_EMIF
tristate "Texas Instruments EMIF driver"
depends on ARCH_OMAP2PLUS
diff --git a/drivers/memory/Makefile b/drivers/memory/Makefile
index 969d923..d4e150c 100644
--- a/drivers/memory/Makefile
+++ b/drivers/memory/Makefile
@@ -5,6 +5,7 @@
ifeq ($(CONFIG_DDR),y)
obj-$(CONFIG_OF) += of_memory.o
endif
+obj-$(CONFIG_TI_AEMIF) += ti-aemif.o
obj-$(CONFIG_TI_EMIF) += emif.o
obj-$(CONFIG_MVEBU_DEVBUS) += mvebu-devbus.o
obj-$(CONFIG_TEGRA20_MC) += tegra20-mc.o
diff --git a/drivers/memory/ti-aemif.c b/drivers/memory/ti-aemif.c
new file mode 100644
index 0000000..8d15d87
--- /dev/null
+++ b/drivers/memory/ti-aemif.c
@@ -0,0 +1,429 @@
+/*
+ * TI AEMIF driver
+ *
+ * Copyright (C) 2010 - 2013 Texas Instruments Incorporated. http://www.ti.com/
+ *
+ * Authors:
+ * Murali Karicheri <m-karicheri2@ti.com>
+ * Ivan Khoronzhuk <ivan.khoronzhuk@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/clk.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
+#include <linux/platform_device.h>
+
+#define TA_SHIFT 2
+#define RHOLD_SHIFT 4
+#define RSTROBE_SHIFT 7
+#define RSETUP_SHIFT 13
+#define WHOLD_SHIFT 17
+#define WSTROBE_SHIFT 20
+#define WSETUP_SHIFT 26
+#define EW_SHIFT 30
+#define SS_SHIFT 31
+
+#define TA(x) ((x) << TA_SHIFT)
+#define RHOLD(x) ((x) << RHOLD_SHIFT)
+#define RSTROBE(x) ((x) << RSTROBE_SHIFT)
+#define RSETUP(x) ((x) << RSETUP_SHIFT)
+#define WHOLD(x) ((x) << WHOLD_SHIFT)
+#define WSTROBE(x) ((x) << WSTROBE_SHIFT)
+#define WSETUP(x) ((x) << WSETUP_SHIFT)
+#define EW(x) ((x) << EW_SHIFT)
+#define SS(x) ((x) << SS_SHIFT)
+
+#define ASIZE_MAX 0x1
+#define TA_MAX 0x3
+#define RHOLD_MAX 0x7
+#define RSTROBE_MAX 0x3f
+#define RSETUP_MAX 0xf
+#define WHOLD_MAX 0x7
+#define WSTROBE_MAX 0x3f
+#define WSETUP_MAX 0xf
+#define EW_MAX 0x1
+#define SS_MAX 0x1
+#define NUM_CS 4
+
+#define TA_VAL(x) (((x) & TA(TA_MAX)) >> TA_SHIFT)
+#define RHOLD_VAL(x) (((x) & RHOLD(RHOLD_MAX)) >> RHOLD_SHIFT)
+#define RSTROBE_VAL(x) (((x) & RSTROBE(RSTROBE_MAX)) >> RSTROBE_SHIFT)
+#define RSETUP_VAL(x) (((x) & RSETUP(RSETUP_MAX)) >> RSETUP_SHIFT)
+#define WHOLD_VAL(x) (((x) & WHOLD(WHOLD_MAX)) >> WHOLD_SHIFT)
+#define WSTROBE_VAL(x) (((x) & WSTROBE(WSTROBE_MAX)) >> WSTROBE_SHIFT)
+#define WSETUP_VAL(x) (((x) & WSETUP(WSETUP_MAX)) >> WSETUP_SHIFT)
+#define EW_VAL(x) (((x) & EW(EW_MAX)) >> EW_SHIFT)
+#define SS_VAL(x) (((x) & SS(SS_MAX)) >> SS_SHIFT)
+
+#define NRCSR_OFFSET 0x00
+#define AWCCR_OFFSET 0x04
+#define A1CR_OFFSET 0x10
+
+#define ACR_ASIZE_MASK 0x3
+#define ACR_EW_MASK BIT(30)
+#define ACR_SS_MASK BIT(31)
+#define ASIZE_16BIT 1
+
+#define CONFIG_MASK (TA(TA_MAX) | \
+ RHOLD(RHOLD_MAX) | \
+ RSTROBE(RSTROBE_MAX) | \
+ RSETUP(RSETUP_MAX) | \
+ WHOLD(WHOLD_MAX) | \
+ WSTROBE(WSTROBE_MAX) | \
+ WSETUP(WSETUP_MAX) | \
+ EW(EW_MAX) | SS(SS_MAX) | \
+ ASIZE_MAX)
+
+#define DRV_NAME "ti-aemif"
+
+/**
+ * struct aemif_cs_data: structure to hold cs parameters
+ * @cs: chip-select number
+ * @wstrobe: write strobe width, ns
+ * @rstrobe: read strobe width, ns
+ * @wsetup: write setup width, ns
+ * @whold: write hold width, ns
+ * @rsetup: read setup width, ns
+ * @rhold: read hold width, ns
+ * @ta: minimum turn around time, ns
+ * @enable_ss: enable/disable select strobe mode
+ * @enable_ew: enable/disable extended wait mode
+ * @asize: width of the asynchronous device's data bus
+ */
+struct aemif_cs_data {
+ u8 cs;
+ u16 wstrobe;
+ u16 rstrobe;
+ u8 wsetup;
+ u8 whold;
+ u8 rsetup;
+ u8 rhold;
+ u8 ta;
+ u8 enable_ss;
+ u8 enable_ew;
+ u8 asize;
+};
+
+/**
+ * struct aemif_device: structure to hold device data
+ * @base: base address of AEMIF registers
+ * @clk: source clock
+ * @clk_rate: clock's rate in kHz
+ * @num_cs: number of assigned chip-selects
+ * @cs_offset: start number of cs nodes
+ * @cs_data: array of chip-select settings
+ */
+struct aemif_device {
+ void __iomem *base;
+ struct clk *clk;
+ unsigned long clk_rate;
+ u8 num_cs;
+ int cs_offset;
+ struct aemif_cs_data cs_data[NUM_CS];
+};
+
+/**
+ * aemif_calc_rate - calculate timing data.
+ * @pdev: platform device to calculate for
+ * @wanted: The cycle time needed in nanoseconds.
+ * @clk: The input clock rate in kHz.
+ * @max: The maximum divider value that can be programmed.
+ *
+ * On success, returns the calculated timing value minus 1 for easy
+ * programming into AEMIF timing registers, else negative errno.
+ */
+static int aemif_calc_rate(struct platform_device *pdev, int wanted,
+ unsigned long clk, int max)
+{
+ int result;
+
+ result = DIV_ROUND_UP((wanted * clk), NSEC_PER_MSEC) - 1;
+
+ dev_dbg(&pdev->dev, "%s: result %d from %ld, %d\n", __func__, result,
+ clk, wanted);
+
+ /* It is generally OK to have a more relaxed timing than requested... */
+ if (result < 0)
+ result = 0;
+
+ /* ... But configuring tighter timings is not an option. */
+ else if (result > max)
+ result = -EINVAL;
+
+ return result;
+}
+
+/**
+ * aemif_config_abus - configure async bus parameters
+ * @pdev: platform device to configure for
+ * @csnum: aemif chip select number
+ *
+ * This function programs the given timing values (in real clock) into the
+ * AEMIF registers taking the AEMIF clock into account.
+ *
+ * This function does not use any locking while programming the AEMIF
+ * because it is expected that there is only one user of a given
+ * chip-select.
+ *
+ * Returns 0 on success, else negative errno.
+ */
+static int aemif_config_abus(struct platform_device *pdev, int csnum)
+{
+ struct aemif_device *aemif = platform_get_drvdata(pdev);
+ struct aemif_cs_data *data = &aemif->cs_data[csnum];
+ int ta, rhold, rstrobe, rsetup, whold, wstrobe, wsetup;
+ unsigned long clk_rate = aemif->clk_rate;
+ unsigned offset;
+ u32 set, val;
+
+ offset = A1CR_OFFSET + (data->cs - aemif->cs_offset) * 4;
+
+ ta = aemif_calc_rate(pdev, data->ta, clk_rate, TA_MAX);
+ rhold = aemif_calc_rate(pdev, data->rhold, clk_rate, RHOLD_MAX);
+ rstrobe = aemif_calc_rate(pdev, data->rstrobe, clk_rate, RSTROBE_MAX);
+ rsetup = aemif_calc_rate(pdev, data->rsetup, clk_rate, RSETUP_MAX);
+ whold = aemif_calc_rate(pdev, data->whold, clk_rate, WHOLD_MAX);
+ wstrobe = aemif_calc_rate(pdev, data->wstrobe, clk_rate, WSTROBE_MAX);
+ wsetup = aemif_calc_rate(pdev, data->wsetup, clk_rate, WSETUP_MAX);
+
+ if (ta < 0 || rhold < 0 || rstrobe < 0 || rsetup < 0 ||
+ whold < 0 || wstrobe < 0 || wsetup < 0) {
+ dev_err(&pdev->dev, "%s: cannot get suitable timings\n",
+ __func__);
+ return -EINVAL;
+ }
+
+ set = TA(ta) | RHOLD(rhold) | RSTROBE(rstrobe) | RSETUP(rsetup) |
+ WHOLD(whold) | WSTROBE(wstrobe) | WSETUP(wsetup);
+
+ set |= (data->asize & ACR_ASIZE_MASK);
+ if (data->enable_ew)
+ set |= ACR_EW_MASK;
+ if (data->enable_ss)
+ set |= ACR_SS_MASK;
+
+ val = readl(aemif->base + offset);
+ val &= ~CONFIG_MASK;
+ val |= set;
+ writel(val, aemif->base + offset);
+
+ return 0;
+}
+
+static inline int aemif_cycles_to_nsec(int val, unsigned long clk_rate)
+{
+ return ((val + 1) * NSEC_PER_MSEC) / clk_rate;
+}
+
+/**
+ * aemif_get_hw_params - function to read hw register values
+ * @pdev: platform device to read for
+ * @csnum: aemif chip select number
+ *
+ * This function reads the defaults from the registers and update
+ * the timing values. Required for get/set commands and also for
+ * the case when driver needs to use defaults in hardware.
+ */
+static void aemif_get_hw_params(struct platform_device *pdev, int csnum)
+{
+ struct aemif_device *aemif = platform_get_drvdata(pdev);
+ struct aemif_cs_data *data = &aemif->cs_data[csnum];
+ unsigned long clk_rate = aemif->clk_rate;
+ u32 val, offset;
+
+ offset = A1CR_OFFSET + (data->cs - aemif->cs_offset) * 4;
+ val = readl(aemif->base + offset);
+
+ data->ta = aemif_cycles_to_nsec(TA_VAL(val), clk_rate);
+ data->rhold = aemif_cycles_to_nsec(RHOLD_VAL(val), clk_rate);
+ data->rstrobe = aemif_cycles_to_nsec(RSTROBE_VAL(val), clk_rate);
+ data->rsetup = aemif_cycles_to_nsec(RSETUP_VAL(val), clk_rate);
+ data->whold = aemif_cycles_to_nsec(WHOLD_VAL(val), clk_rate);
+ data->wstrobe = aemif_cycles_to_nsec(WSTROBE_VAL(val), clk_rate);
+ data->wsetup = aemif_cycles_to_nsec(WSETUP_VAL(val), clk_rate);
+ data->enable_ew = EW_VAL(val);
+ data->enable_ss = SS_VAL(val);
+ data->asize = val & ASIZE_MAX;
+}
+
+/**
+ * of_aemif_parse_abus_config - parse CS configuration from DT
+ * @pdev: platform device to parse for
+ * @np: device node ptr
+ *
+ * This function update the emif async bus configuration based on the values
+ * configured in a cs device binding node.
+ */
+static int of_aemif_parse_abus_config(struct platform_device *pdev,
+ struct device_node *np)
+{
+ struct aemif_device *aemif = platform_get_drvdata(pdev);
+ struct aemif_cs_data *data;
+ u32 cs;
+ u32 val;
+
+ if (of_property_read_u32(np, "ti,cs-chipselect", &cs)) {
+ dev_dbg(&pdev->dev, "cs property is required");
+ return -EINVAL;
+ }
+
+ if (cs - aemif->cs_offset >= NUM_CS || cs < aemif->cs_offset) {
+ dev_dbg(&pdev->dev, "cs number is incorrect %d", cs);
+ return -EINVAL;
+ }
+
+ if (aemif->num_cs >= NUM_CS) {
+ dev_dbg(&pdev->dev, "cs count is more than %d", NUM_CS);
+ return -EINVAL;
+ }
+
+ data = &aemif->cs_data[aemif->num_cs];
+ data->cs = cs;
+
+ /* read the current value in the hw register */
+ aemif_get_hw_params(pdev, aemif->num_cs++);
+
+ /* override the values from device node */
+ if (!of_property_read_u32(np, "ti,cs-ta", &val))
+ data->ta = val;
+
+ if (!of_property_read_u32(np, "ti,cs-rhold", &val))
+ data->rhold = val;
+
+ if (!of_property_read_u32(np, "ti,cs-rstrobe", &val))
+ data->rstrobe = val;
+
+ if (!of_property_read_u32(np, "ti,cs-rsetup", &val))
+ data->rsetup = val;
+
+ if (!of_property_read_u32(np, "ti,cs-whold", &val))
+ data->whold = val;
+
+ if (!of_property_read_u32(np, "ti,cs-wstrobe", &val))
+ data->wstrobe = val;
+
+ if (!of_property_read_u32(np, "ti,cs-wsetup", &val))
+ data->wsetup = val;
+
+ if (!of_property_read_u32(np, "ti,bus-width", &val))
+ if (val == 16)
+ data->asize = 1;
+ data->enable_ew = of_property_read_bool(np, "ti,cs-ew");
+ data->enable_ss = of_property_read_bool(np, "ti,cs-ss");
+ return 0;
+}
+
+static const struct of_device_id aemif_of_match[] = {
+ { .compatible = "ti,davinci-aemif", },
+ { .compatible = "ti,da850-aemif", },
+ {},
+};
+
+static int aemif_probe(struct platform_device *pdev)
+{
+ int ret = -ENODEV, i;
+ struct resource *res;
+ struct device *dev = &pdev->dev;
+ struct device_node *np = dev->of_node;
+ struct device_node *child_np;
+ struct aemif_device *aemif;
+
+ if (np == NULL)
+ return 0;
+
+ aemif = devm_kzalloc(dev, sizeof(*aemif), GFP_KERNEL);
+ if (!aemif) {
+ dev_err(dev, "cannot allocate memory for aemif\n");
+ return -ENOMEM;
+ }
+
+ platform_set_drvdata(pdev, aemif);
+
+ aemif->clk = devm_clk_get(dev, NULL);
+ if (IS_ERR(aemif->clk)) {
+ dev_err(dev, "cannot get clock 'aemif'\n");
+ return PTR_ERR(aemif->clk);
+ }
+
+ clk_prepare_enable(aemif->clk);
+ aemif->clk_rate = clk_get_rate(aemif->clk) / MSEC_PER_SEC;
+
+ if (of_device_is_compatible(np, "ti,da850-aemif"))
+ aemif->cs_offset = 2;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ aemif->base = devm_ioremap_resource(dev, res);
+ if (IS_ERR(aemif->base)) {
+ ret = PTR_ERR(aemif->base);
+ goto error;
+ }
+
+ /*
+ * For every controller device node, there is a cs device node that
+ * describe the bus configuration parameters. This functions iterate
+ * over these nodes and update the cs data array.
+ */
+ for_each_available_child_of_node(np, child_np) {
+ ret = of_aemif_parse_abus_config(pdev, child_np);
+ if (ret < 0)
+ goto error;
+ }
+
+ for (i = 0; i < aemif->num_cs; i++) {
+ ret = aemif_config_abus(pdev, i);
+ if (ret < 0) {
+ dev_err(dev, "Error configuring chip select %d\n",
+ aemif->cs_data[i].cs);
+ goto error;
+ }
+ }
+
+ /*
+ * Create a child devices explicitly from here to
+ * guarantee that the child will be probed after the AEMIF timing
+ * parameters are set.
+ */
+ for_each_available_child_of_node(np, child_np) {
+ ret = of_platform_populate(child_np, NULL, NULL, dev);
+ if (ret < 0)
+ goto error;
+ }
+
+ return 0;
+error:
+ clk_disable_unprepare(aemif->clk);
+ return ret;
+}
+
+static int aemif_remove(struct platform_device *pdev)
+{
+ struct aemif_device *aemif = platform_get_drvdata(pdev);
+ clk_disable_unprepare(aemif->clk);
+ return 0;
+}
+
+static struct platform_driver aemif_driver = {
+ .probe = aemif_probe,
+ .remove = aemif_remove,
+ .driver = {
+ .name = DRV_NAME,
+ .owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(aemif_of_match),
+ },
+};
+
+module_platform_driver(aemif_driver);
+
+MODULE_AUTHOR("Murali Karicheri <m-karicheri2@ti.com>");
+MODULE_AUTHOR("Ivan Khoronzhuk <ivan.khoronzhuk@ti.com>");
+MODULE_DESCRIPTION("Texas Instruments AEMIF driver");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:" DRV_NAME);
diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig
index 93ae6a6..35f3ea3 100644
--- a/drivers/mtd/nand/Kconfig
+++ b/drivers/mtd/nand/Kconfig
@@ -464,11 +464,11 @@
for NAND Flash using FLCTL.
config MTD_NAND_DAVINCI
- tristate "Support NAND on DaVinci SoC"
- depends on ARCH_DAVINCI
+ tristate "Support NAND on DaVinci/Keystone SoC"
+ depends on ARCH_DAVINCI || (ARCH_KEYSTONE && TI_AEMIF)
help
Enable the driver for NAND flash chips on Texas Instruments
- DaVinci processors.
+ DaVinci/Keystone processors.
config MTD_NAND_TXX9NDFMC
tristate "NAND Flash support for TXx9 SoC"
diff --git a/drivers/mtd/nand/davinci_nand.c b/drivers/mtd/nand/davinci_nand.c
index b77a01e..936f1df 100644
--- a/drivers/mtd/nand/davinci_nand.c
+++ b/drivers/mtd/nand/davinci_nand.c
@@ -35,6 +35,7 @@
#include <linux/slab.h>
#include <linux/of_device.h>
#include <linux/of.h>
+#include <linux/of_mtd.h>
#include <linux/platform_data/mtd-davinci.h>
#include <linux/platform_data/mtd-davinci-aemif.h>
@@ -487,7 +488,7 @@
* ten ECC bytes plus the manufacturer's bad block marker byte, and
* and not overlapping the default BBT markers.
*/
-static struct nand_ecclayout hwecc4_small __initconst = {
+static struct nand_ecclayout hwecc4_small = {
.eccbytes = 10,
.eccpos = { 0, 1, 2, 3, 4,
/* offset 5 holds the badblock marker */
@@ -503,7 +504,7 @@
* storing ten ECC bytes plus the manufacturer's bad block marker byte,
* and not overlapping the default BBT markers.
*/
-static struct nand_ecclayout hwecc4_2048 __initconst = {
+static struct nand_ecclayout hwecc4_2048 = {
.eccbytes = 40,
.eccpos = {
/* at the end of spare sector */
@@ -534,17 +535,19 @@
struct davinci_nand_pdata *pdata;
const char *mode;
u32 prop;
- int len;
pdata = devm_kzalloc(&pdev->dev,
sizeof(struct davinci_nand_pdata),
GFP_KERNEL);
pdev->dev.platform_data = pdata;
if (!pdata)
- return NULL;
+ return ERR_PTR(-ENOMEM);
if (!of_property_read_u32(pdev->dev.of_node,
"ti,davinci-chipselect", &prop))
pdev->id = prop;
+ else
+ return ERR_PTR(-EINVAL);
+
if (!of_property_read_u32(pdev->dev.of_node,
"ti,davinci-mask-ale", &prop))
pdata->mask_ale = prop;
@@ -555,6 +558,8 @@
"ti,davinci-mask-chipsel", &prop))
pdata->mask_chipsel = prop;
if (!of_property_read_string(pdev->dev.of_node,
+ "nand-ecc-mode", &mode) ||
+ !of_property_read_string(pdev->dev.of_node,
"ti,davinci-ecc-mode", &mode)) {
if (!strncmp("none", mode, 4))
pdata->ecc_mode = NAND_ECC_NONE;
@@ -566,12 +571,16 @@
if (!of_property_read_u32(pdev->dev.of_node,
"ti,davinci-ecc-bits", &prop))
pdata->ecc_bits = prop;
- if (!of_property_read_u32(pdev->dev.of_node,
+
+ prop = of_get_nand_bus_width(pdev->dev.of_node);
+ if (0 < prop || !of_property_read_u32(pdev->dev.of_node,
"ti,davinci-nand-buswidth", &prop))
if (prop == 16)
pdata->options |= NAND_BUSWIDTH_16;
- if (of_find_property(pdev->dev.of_node,
- "ti,davinci-nand-use-bbt", &len))
+ if (of_property_read_bool(pdev->dev.of_node,
+ "nand-on-flash-bbt") ||
+ of_property_read_bool(pdev->dev.of_node,
+ "ti,davinci-nand-use-bbt"))
pdata->bbt_options = NAND_BBT_USE_FLASH;
}
@@ -585,7 +594,7 @@
}
#endif
-static int __init nand_davinci_probe(struct platform_device *pdev)
+static int nand_davinci_probe(struct platform_device *pdev)
{
struct davinci_nand_pdata *pdata;
struct davinci_nand_info *info;
@@ -598,6 +607,9 @@
nand_ecc_modes_t ecc_mode;
pdata = nand_davinci_get_pdata(pdev);
+ if (IS_ERR(pdata))
+ return PTR_ERR(pdata);
+
/* insist on board-specific configuration */
if (!pdata)
return -ENODEV;
@@ -609,8 +621,7 @@
info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL);
if (!info) {
dev_err(&pdev->dev, "unable to allocate memory\n");
- ret = -ENOMEM;
- goto err_nomem;
+ return -ENOMEM;
}
platform_set_drvdata(pdev, info);
@@ -619,19 +630,23 @@
res2 = platform_get_resource(pdev, IORESOURCE_MEM, 1);
if (!res1 || !res2) {
dev_err(&pdev->dev, "resource missing\n");
- ret = -EINVAL;
- goto err_nomem;
+ return -EINVAL;
}
vaddr = devm_ioremap_resource(&pdev->dev, res1);
- if (IS_ERR(vaddr)) {
- ret = PTR_ERR(vaddr);
- goto err_ioremap;
- }
- base = devm_ioremap_resource(&pdev->dev, res2);
- if (IS_ERR(base)) {
- ret = PTR_ERR(base);
- goto err_ioremap;
+ if (IS_ERR(vaddr))
+ return PTR_ERR(vaddr);
+
+ /*
+ * This registers range is used to setup NAND settings. In case with
+ * TI AEMIF driver, the same memory address range is requested already
+ * by AEMIF, so we cannot request it twice, just ioremap.
+ * The AEMIF and NAND drivers not use the same registers in this range.
+ */
+ base = devm_ioremap(&pdev->dev, res2->start, resource_size(res2));
+ if (!base) {
+ dev_err(&pdev->dev, "ioremap failed for resource %pR\n", res2);
+ return -EADDRNOTAVAIL;
}
info->dev = &pdev->dev;
@@ -699,7 +714,7 @@
spin_unlock_irq(&davinci_nand_lock);
if (ret == -EBUSY)
- goto err_ecc;
+ return ret;
info->chip.ecc.calculate = nand_davinci_calculate_4bit;
info->chip.ecc.correct = nand_davinci_correct_4bit;
@@ -715,8 +730,7 @@
info->chip.ecc.strength = pdata->ecc_bits;
break;
default:
- ret = -EINVAL;
- goto err_ecc;
+ return -EINVAL;
}
info->chip.ecc.mode = ecc_mode;
@@ -724,7 +738,7 @@
if (IS_ERR(info->clk)) {
ret = PTR_ERR(info->clk);
dev_dbg(&pdev->dev, "unable to get AEMIF clock, err %d\n", ret);
- goto err_clk;
+ return ret;
}
ret = clk_prepare_enable(info->clk);
@@ -734,28 +748,6 @@
goto err_clk_enable;
}
- /*
- * Setup Async configuration register in case we did not boot from
- * NAND and so bootloader did not bother to set it up.
- */
- val = davinci_nand_readl(info, A1CR_OFFSET + info->core_chipsel * 4);
-
- /* Extended Wait is not valid and Select Strobe mode is not used */
- val &= ~(ACR_ASIZE_MASK | ACR_EW_MASK | ACR_SS_MASK);
- if (info->chip.options & NAND_BUSWIDTH_16)
- val |= 0x1;
-
- davinci_nand_writel(info, A1CR_OFFSET + info->core_chipsel * 4, val);
-
- ret = 0;
- if (info->timing)
- ret = davinci_aemif_setup_timing(info->timing, info->base,
- info->core_chipsel);
- if (ret < 0) {
- dev_dbg(&pdev->dev, "NAND timing values setup fail\n");
- goto err_timing;
- }
-
spin_lock_irq(&davinci_nand_lock);
/* put CSxNAND into NAND mode */
@@ -769,7 +761,7 @@
ret = nand_scan_ident(&info->mtd, pdata->mask_chipsel ? 2 : 1, NULL);
if (ret < 0) {
dev_dbg(&pdev->dev, "no NAND chip(s) found\n");
- goto err_scan;
+ goto err;
}
/* Update ECC layout if needed ... for 1-bit HW ECC, the default
@@ -783,7 +775,7 @@
if (!chunks || info->mtd.oobsize < 16) {
dev_dbg(&pdev->dev, "too small\n");
ret = -EINVAL;
- goto err_scan;
+ goto err;
}
/* For small page chips, preserve the manufacturer's
@@ -814,7 +806,7 @@
dev_warn(&pdev->dev, "no 4-bit ECC support yet "
"for 4KiB-page NAND\n");
ret = -EIO;
- goto err_scan;
+ goto err;
syndrome_done:
info->chip.ecc.layout = &info->ecclayout;
@@ -822,7 +814,7 @@
ret = nand_scan_tail(&info->mtd);
if (ret < 0)
- goto err_scan;
+ goto err;
if (pdata->parts)
ret = mtd_device_parse_register(&info->mtd, NULL, NULL,
@@ -835,7 +827,7 @@
NULL, 0);
}
if (ret < 0)
- goto err_scan;
+ goto err;
val = davinci_nand_readl(info, NRCSR_OFFSET);
dev_info(&pdev->dev, "controller rev. %d.%d\n",
@@ -843,8 +835,7 @@
return 0;
-err_scan:
-err_timing:
+err:
clk_disable_unprepare(info->clk);
err_clk_enable:
@@ -852,15 +843,10 @@
if (ecc_mode == NAND_ECC_HW_SYNDROME)
ecc4_busy = false;
spin_unlock_irq(&davinci_nand_lock);
-
-err_ecc:
-err_clk:
-err_ioremap:
-err_nomem:
return ret;
}
-static int __exit nand_davinci_remove(struct platform_device *pdev)
+static int nand_davinci_remove(struct platform_device *pdev)
{
struct davinci_nand_info *info = platform_get_drvdata(pdev);
@@ -877,7 +863,8 @@
}
static struct platform_driver nand_davinci_driver = {
- .remove = __exit_p(nand_davinci_remove),
+ .probe = nand_davinci_probe,
+ .remove = nand_davinci_remove,
.driver = {
.name = "davinci_nand",
.owner = THIS_MODULE,
@@ -886,7 +873,7 @@
};
MODULE_ALIAS("platform:davinci_nand");
-module_platform_driver_probe(nand_davinci_driver, nand_davinci_probe);
+module_platform_driver(nand_davinci_driver);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Texas Instruments");
diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig
index eb1f1ef..58bcff0 100644
--- a/drivers/spi/Kconfig
+++ b/drivers/spi/Kconfig
@@ -159,7 +159,6 @@
tristate "Texas Instruments DaVinci/DA8x/OMAP-L/AM1x SoC SPI controller"
depends on ARCH_DAVINCI || ARCH_KEYSTONE
select SPI_BITBANG
- select TI_EDMA
help
SPI master controller for DaVinci/DA8x/OMAP-L/AM1x SPI modules.
diff --git a/drivers/spi/spi-davinci.c b/drivers/spi/spi-davinci.c
index 50b2d88..5e7389f 100644
--- a/drivers/spi/spi-davinci.c
+++ b/drivers/spi/spi-davinci.c
@@ -396,10 +396,6 @@
dspi = spi_master_get_devdata(spi->master);
pdata = &dspi->pdata;
- /* if bits per word length is zero then set it default 8 */
- if (!spi->bits_per_word)
- spi->bits_per_word = 8;
-
if (!(spi->mode & SPI_NO_CS)) {
if ((pdata->chip_sel == NULL) ||
(pdata->chip_sel[spi->chip_select] == SPI_INTERN_CS))
@@ -853,7 +849,7 @@
struct spi_master *master;
struct davinci_spi *dspi;
struct davinci_spi_platform_data *pdata;
- struct resource *r, *mem;
+ struct resource *r;
resource_size_t dma_rx_chan = SPI_NO_RESOURCE;
resource_size_t dma_tx_chan = SPI_NO_RESOURCE;
int i = 0, ret = 0;
@@ -894,39 +890,33 @@
dspi->pbase = r->start;
- mem = request_mem_region(r->start, resource_size(r), pdev->name);
- if (mem == NULL) {
- ret = -EBUSY;
+ dspi->base = devm_ioremap_resource(&pdev->dev, r);
+ if (IS_ERR(dspi->base)) {
+ ret = PTR_ERR(dspi->base);
goto free_master;
}
- dspi->base = ioremap(r->start, resource_size(r));
- if (dspi->base == NULL) {
- ret = -ENOMEM;
- goto release_region;
- }
-
dspi->irq = platform_get_irq(pdev, 0);
if (dspi->irq <= 0) {
ret = -EINVAL;
- goto unmap_io;
+ goto free_master;
}
- ret = request_threaded_irq(dspi->irq, davinci_spi_irq, dummy_thread_fn,
- 0, dev_name(&pdev->dev), dspi);
+ ret = devm_request_threaded_irq(&pdev->dev, dspi->irq, davinci_spi_irq,
+ dummy_thread_fn, 0, dev_name(&pdev->dev), dspi);
if (ret)
- goto unmap_io;
+ goto free_master;
dspi->bitbang.master = master;
if (dspi->bitbang.master == NULL) {
ret = -ENODEV;
- goto irq_free;
+ goto free_master;
}
- dspi->clk = clk_get(&pdev->dev, NULL);
+ dspi->clk = devm_clk_get(&pdev->dev, NULL);
if (IS_ERR(dspi->clk)) {
ret = -ENODEV;
- goto irq_free;
+ goto free_master;
}
clk_prepare_enable(dspi->clk);
@@ -963,8 +953,8 @@
goto free_clk;
dev_info(&pdev->dev, "DMA: supported\n");
- dev_info(&pdev->dev, "DMA: RX channel: %d, TX channel: %d, "
- "event queue: %d\n", dma_rx_chan, dma_tx_chan,
+ dev_info(&pdev->dev, "DMA: RX channel: %pa, TX channel: %pa, "
+ "event queue: %d\n", &dma_rx_chan, &dma_tx_chan,
pdata->dma_event_q);
}
@@ -1015,13 +1005,6 @@
dma_release_channel(dspi->dma_tx);
free_clk:
clk_disable_unprepare(dspi->clk);
- clk_put(dspi->clk);
-irq_free:
- free_irq(dspi->irq, dspi);
-unmap_io:
- iounmap(dspi->base);
-release_region:
- release_mem_region(dspi->pbase, resource_size(r));
free_master:
spi_master_put(master);
err:
@@ -1041,7 +1024,6 @@
{
struct davinci_spi *dspi;
struct spi_master *master;
- struct resource *r;
master = platform_get_drvdata(pdev);
dspi = spi_master_get_devdata(master);
@@ -1049,11 +1031,6 @@
spi_bitbang_stop(&dspi->bitbang);
clk_disable_unprepare(dspi->clk);
- clk_put(dspi->clk);
- free_irq(dspi->irq, dspi);
- iounmap(dspi->base);
- r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- release_mem_region(dspi->pbase, resource_size(r));
spi_master_put(master);
return 0;
diff --git a/drivers/spi/spi-fsl-dspi.c b/drivers/spi/spi-fsl-dspi.c
index 8641b03..649f9d1 100644
--- a/drivers/spi/spi-fsl-dspi.c
+++ b/drivers/spi/spi-fsl-dspi.c
@@ -373,9 +373,6 @@
if (!spi->max_speed_hz)
return -EINVAL;
- if (!spi->bits_per_word)
- spi->bits_per_word = 8;
-
return dspi_setup_transfer(spi, NULL);
}
diff --git a/drivers/spi/spi-mxs.c b/drivers/spi/spi-mxs.c
index 3adebfa..79e5aa2 100644
--- a/drivers/spi/spi-mxs.c
+++ b/drivers/spi/spi-mxs.c
@@ -111,14 +111,6 @@
return 0;
}
-static int mxs_spi_setup(struct spi_device *dev)
-{
- if (!dev->bits_per_word)
- dev->bits_per_word = 8;
-
- return 0;
-}
-
static u32 mxs_spi_cs_to_reg(unsigned cs)
{
u32 select = 0;
@@ -502,7 +494,6 @@
return -ENOMEM;
master->transfer_one_message = mxs_spi_transfer_one;
- master->setup = mxs_spi_setup;
master->bits_per_word_mask = SPI_BPW_MASK(8);
master->mode_bits = SPI_CPOL | SPI_CPHA;
master->num_chipselect = 3;
diff --git a/drivers/spi/spi-rspi.c b/drivers/spi/spi-rspi.c
index 9e829ce..9769bff 100644
--- a/drivers/spi/spi-rspi.c
+++ b/drivers/spi/spi-rspi.c
@@ -771,8 +771,6 @@
{
struct rspi_data *rspi = spi_master_get_devdata(spi->master);
- if (!spi->bits_per_word)
- spi->bits_per_word = 8;
rspi->max_speed_hz = spi->max_speed_hz;
set_config_register(rspi, 8);
diff --git a/drivers/spi/spi-sc18is602.c b/drivers/spi/spi-sc18is602.c
index 9eda21d..c4e561f 100644
--- a/drivers/spi/spi-sc18is602.c
+++ b/drivers/spi/spi-sc18is602.c
@@ -254,9 +254,6 @@
static int sc18is602_setup(struct spi_device *spi)
{
- if (!spi->bits_per_word)
- spi->bits_per_word = 8;
-
if (spi->mode & ~(SPI_CPHA | SPI_CPOL | SPI_LSB_FIRST))
return -EINVAL;
diff --git a/drivers/spi/spi-sh.c b/drivers/spi/spi-sh.c
index c120a70..86a17d6 100644
--- a/drivers/spi/spi-sh.c
+++ b/drivers/spi/spi-sh.c
@@ -358,9 +358,6 @@
{
struct spi_sh_data *ss = spi_master_get_devdata(spi->master);
- if (!spi->bits_per_word)
- spi->bits_per_word = 8;
-
pr_debug("%s: enter\n", __func__);
spi_sh_write(ss, 0xfe, SPI_SH_CR1); /* SPI sycle stop */
diff --git a/drivers/spi/spi-sirf.c b/drivers/spi/spi-sirf.c
index ed5e501..e430689 100644
--- a/drivers/spi/spi-sirf.c
+++ b/drivers/spi/spi-sirf.c
@@ -536,16 +536,9 @@
static int spi_sirfsoc_setup(struct spi_device *spi)
{
- struct sirfsoc_spi *sspi;
-
if (!spi->max_speed_hz)
return -EINVAL;
- sspi = spi_master_get_devdata(spi->master);
-
- if (!spi->bits_per_word)
- spi->bits_per_word = 8;
-
return spi_sirfsoc_setup_transfer(spi, NULL);
}
diff --git a/drivers/spi/spi-topcliff-pch.c b/drivers/spi/spi-topcliff-pch.c
index 4461313..9322de9 100644
--- a/drivers/spi/spi-topcliff-pch.c
+++ b/drivers/spi/spi-topcliff-pch.c
@@ -466,12 +466,6 @@
static int pch_spi_setup(struct spi_device *pspi)
{
- /* check bits per word */
- if (pspi->bits_per_word == 0) {
- pspi->bits_per_word = 8;
- dev_dbg(&pspi->dev, "%s 8 bits per word\n", __func__);
- }
-
/* Check baud rate setting */
/* if baud rate of chip is greater than
max we can support,return error */
diff --git a/drivers/usb/dwc3/Kconfig b/drivers/usb/dwc3/Kconfig
index 70fc430..e2c730f 100644
--- a/drivers/usb/dwc3/Kconfig
+++ b/drivers/usb/dwc3/Kconfig
@@ -70,6 +70,13 @@
One such PCIe-based platform is Synopsys' PCIe HAPS model of
this IP.
+config USB_DWC3_KEYSTONE
+ tristate "Texas Instruments Keystone2 Platforms"
+ default USB_DWC3
+ help
+ Support of USB2/3 functionality in TI Keystone2 platforms.
+ Say 'Y' or 'M' here if you have one such device
+
comment "Debugging features"
config USB_DWC3_DEBUG
diff --git a/drivers/usb/dwc3/Makefile b/drivers/usb/dwc3/Makefile
index dd17601..10ac3e7 100644
--- a/drivers/usb/dwc3/Makefile
+++ b/drivers/usb/dwc3/Makefile
@@ -32,3 +32,4 @@
obj-$(CONFIG_USB_DWC3_OMAP) += dwc3-omap.o
obj-$(CONFIG_USB_DWC3_EXYNOS) += dwc3-exynos.o
obj-$(CONFIG_USB_DWC3_PCI) += dwc3-pci.o
+obj-$(CONFIG_USB_DWC3_KEYSTONE) += dwc3-keystone.o
diff --git a/drivers/usb/dwc3/dwc3-keystone.c b/drivers/usb/dwc3/dwc3-keystone.c
new file mode 100644
index 0000000..1fad161
--- /dev/null
+++ b/drivers/usb/dwc3/dwc3-keystone.c
@@ -0,0 +1,202 @@
+/**
+ * dwc3-keystone.c - Keystone Specific Glue layer
+ *
+ * Copyright (C) 2010-2013 Texas Instruments Incorporated - http://www.ti.com
+ *
+ * Author: WingMan Kwok <w-kwok2@ti.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 of
+ * the License as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/clk.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/dma-mapping.h>
+#include <linux/io.h>
+#include <linux/of_platform.h>
+
+/* USBSS register offsets */
+#define USBSS_REVISION 0x0000
+#define USBSS_SYSCONFIG 0x0010
+#define USBSS_IRQ_EOI 0x0018
+#define USBSS_IRQSTATUS_RAW_0 0x0020
+#define USBSS_IRQSTATUS_0 0x0024
+#define USBSS_IRQENABLE_SET_0 0x0028
+#define USBSS_IRQENABLE_CLR_0 0x002c
+
+/* IRQ register bits */
+#define USBSS_IRQ_EOI_LINE(n) BIT(n)
+#define USBSS_IRQ_EVENT_ST BIT(0)
+#define USBSS_IRQ_COREIRQ_EN BIT(0)
+#define USBSS_IRQ_COREIRQ_CLR BIT(0)
+
+static u64 kdwc3_dma_mask;
+
+struct dwc3_keystone {
+ struct device *dev;
+ struct clk *clk;
+ void __iomem *usbss;
+};
+
+static inline u32 kdwc3_readl(void __iomem *base, u32 offset)
+{
+ return readl(base + offset);
+}
+
+static inline void kdwc3_writel(void __iomem *base, u32 offset, u32 value)
+{
+ writel(value, base + offset);
+}
+
+static void kdwc3_enable_irqs(struct dwc3_keystone *kdwc)
+{
+ u32 val;
+
+ val = kdwc3_readl(kdwc->usbss, USBSS_IRQENABLE_SET_0);
+ val |= USBSS_IRQ_COREIRQ_EN;
+ kdwc3_writel(kdwc->usbss, USBSS_IRQENABLE_SET_0, val);
+}
+
+static void kdwc3_disable_irqs(struct dwc3_keystone *kdwc)
+{
+ u32 val;
+
+ val = kdwc3_readl(kdwc->usbss, USBSS_IRQENABLE_SET_0);
+ val &= ~USBSS_IRQ_COREIRQ_EN;
+ kdwc3_writel(kdwc->usbss, USBSS_IRQENABLE_SET_0, val);
+}
+
+static irqreturn_t dwc3_keystone_interrupt(int irq, void *_kdwc)
+{
+ struct dwc3_keystone *kdwc = _kdwc;
+
+ kdwc3_writel(kdwc->usbss, USBSS_IRQENABLE_CLR_0, USBSS_IRQ_COREIRQ_CLR);
+ kdwc3_writel(kdwc->usbss, USBSS_IRQSTATUS_0, USBSS_IRQ_EVENT_ST);
+ kdwc3_writel(kdwc->usbss, USBSS_IRQENABLE_SET_0, USBSS_IRQ_COREIRQ_EN);
+ kdwc3_writel(kdwc->usbss, USBSS_IRQ_EOI, USBSS_IRQ_EOI_LINE(0));
+
+ return IRQ_HANDLED;
+}
+
+static int kdwc3_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct device_node *node = pdev->dev.of_node;
+ struct dwc3_keystone *kdwc;
+ struct resource *res;
+ int error, irq;
+
+ kdwc = devm_kzalloc(dev, sizeof(*kdwc), GFP_KERNEL);
+ if (!kdwc)
+ return -ENOMEM;
+
+ platform_set_drvdata(pdev, kdwc);
+
+ kdwc->dev = dev;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res) {
+ dev_err(dev, "missing usbss resource\n");
+ return -EINVAL;
+ }
+
+ kdwc->usbss = devm_ioremap_resource(dev, res);
+ if (IS_ERR(kdwc->usbss))
+ return PTR_ERR(kdwc->usbss);
+
+ kdwc3_dma_mask = dma_get_mask(dev);
+ dev->dma_mask = &kdwc3_dma_mask;
+
+ kdwc->clk = devm_clk_get(kdwc->dev, "usb");
+
+ error = clk_prepare_enable(kdwc->clk);
+ if (error < 0) {
+ dev_dbg(kdwc->dev, "unable to enable usb clock, err %d\n",
+ error);
+ return error;
+ }
+
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0) {
+ dev_err(&pdev->dev, "missing irq\n");
+ goto err_irq;
+ }
+
+ error = devm_request_irq(dev, irq, dwc3_keystone_interrupt, IRQF_SHARED,
+ dev_name(dev), kdwc);
+ if (error) {
+ dev_err(dev, "failed to request IRQ #%d --> %d\n",
+ irq, error);
+ goto err_irq;
+ }
+
+ kdwc3_enable_irqs(kdwc);
+
+ error = of_platform_populate(node, NULL, NULL, dev);
+ if (error) {
+ dev_err(&pdev->dev, "failed to create dwc3 core\n");
+ goto err_core;
+ }
+
+ return 0;
+
+err_core:
+ kdwc3_disable_irqs(kdwc);
+err_irq:
+ clk_disable_unprepare(kdwc->clk);
+
+ return error;
+}
+
+static int kdwc3_remove_core(struct device *dev, void *c)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+
+ platform_device_unregister(pdev);
+
+ return 0;
+}
+
+static int kdwc3_remove(struct platform_device *pdev)
+{
+ struct dwc3_keystone *kdwc = platform_get_drvdata(pdev);
+
+ kdwc3_disable_irqs(kdwc);
+ device_for_each_child(&pdev->dev, NULL, kdwc3_remove_core);
+ clk_disable_unprepare(kdwc->clk);
+ platform_set_drvdata(pdev, NULL);
+
+ return 0;
+}
+
+static const struct of_device_id kdwc3_of_match[] = {
+ { .compatible = "ti,keystone-dwc3", },
+ {},
+};
+MODULE_DEVICE_TABLE(of, kdwc3_of_match);
+
+static struct platform_driver kdwc3_driver = {
+ .probe = kdwc3_probe,
+ .remove = kdwc3_remove,
+ .driver = {
+ .name = "keystone-dwc3",
+ .owner = THIS_MODULE,
+ .of_match_table = kdwc3_of_match,
+ },
+};
+
+module_platform_driver(kdwc3_driver);
+
+MODULE_ALIAS("platform:keystone-dwc3");
+MODULE_AUTHOR("WingMan Kwok <w-kwok2@ti.com>");
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("DesignWare USB3 KEYSTONE Glue Layer");
diff --git a/drivers/usb/phy/Kconfig b/drivers/usb/phy/Kconfig
index 2b41c63..38ad4fc 100644
--- a/drivers/usb/phy/Kconfig
+++ b/drivers/usb/phy/Kconfig
@@ -42,6 +42,15 @@
This driver can also be built as a module. If so, the module
will be called isp1301_omap.
+config KEYSTONE_USB_PHY
+ tristate "Keystone USB PHY Driver"
+ depends on ARCH_KEYSTONE || COMPILE_TEST
+ select NOP_USB_XCEIV
+ help
+ Enable this to support Keystone USB phy. This driver provides
+ interface to interact with USB 2.0 and USB 3.0 PHY that is part
+ of the Keystone SOC.
+
config MV_U3D_PHY
bool "Marvell USB 3.0 PHY controller Driver"
depends on CPU_MMP3
diff --git a/drivers/usb/phy/Makefile b/drivers/usb/phy/Makefile
index 022c1da..311b47b 100644
--- a/drivers/usb/phy/Makefile
+++ b/drivers/usb/phy/Makefile
@@ -30,3 +30,4 @@
obj-$(CONFIG_USB_RCAR_GEN2_PHY) += phy-rcar-gen2-usb.o
obj-$(CONFIG_USB_ULPI) += phy-ulpi.o
obj-$(CONFIG_USB_ULPI_VIEWPORT) += phy-ulpi-viewport.o
+obj-$(CONFIG_KEYSTONE_USB_PHY) += phy-keystone.o
diff --git a/drivers/usb/phy/phy-keystone.c b/drivers/usb/phy/phy-keystone.c
new file mode 100644
index 0000000..533db12
--- /dev/null
+++ b/drivers/usb/phy/phy-keystone.c
@@ -0,0 +1,141 @@
+/*
+ * phy-keystone - USB PHY, talking to dwc3 controller in Keystone.
+ *
+ * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * Author: WingMan Kwok <w-kwok2@ti.com>
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/usb/usb_phy_gen_xceiv.h>
+#include <linux/io.h>
+#include <linux/of.h>
+
+#include "phy-generic.h"
+
+/* USB PHY control register offsets */
+#define USB_PHY_CTL_UTMI 0x0000
+#define USB_PHY_CTL_PIPE 0x0004
+#define USB_PHY_CTL_PARAM_1 0x0008
+#define USB_PHY_CTL_PARAM_2 0x000c
+#define USB_PHY_CTL_CLOCK 0x0010
+#define USB_PHY_CTL_PLL 0x0014
+
+#define PHY_REF_SSP_EN BIT(29)
+
+struct keystone_usbphy {
+ struct usb_phy_gen_xceiv usb_phy_gen;
+ void __iomem *phy_ctrl;
+};
+
+static inline u32 keystone_usbphy_readl(void __iomem *base, u32 offset)
+{
+ return readl(base + offset);
+}
+
+static inline void keystone_usbphy_writel(void __iomem *base,
+ u32 offset, u32 value)
+{
+ writel(value, base + offset);
+}
+
+static int keystone_usbphy_init(struct usb_phy *phy)
+{
+ struct keystone_usbphy *k_phy = dev_get_drvdata(phy->dev);
+ u32 val;
+
+ val = keystone_usbphy_readl(k_phy->phy_ctrl, USB_PHY_CTL_CLOCK);
+ keystone_usbphy_writel(k_phy->phy_ctrl, USB_PHY_CTL_CLOCK,
+ val | PHY_REF_SSP_EN);
+ return 0;
+}
+
+static void keystone_usbphy_shutdown(struct usb_phy *phy)
+{
+ struct keystone_usbphy *k_phy = dev_get_drvdata(phy->dev);
+ u32 val;
+
+ val = keystone_usbphy_readl(k_phy->phy_ctrl, USB_PHY_CTL_CLOCK);
+ keystone_usbphy_writel(k_phy->phy_ctrl, USB_PHY_CTL_CLOCK,
+ val &= ~PHY_REF_SSP_EN);
+}
+
+static int keystone_usbphy_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct keystone_usbphy *k_phy;
+ struct resource *res;
+ int ret;
+
+ k_phy = devm_kzalloc(dev, sizeof(*k_phy), GFP_KERNEL);
+ if (!k_phy)
+ return -ENOMEM;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res) {
+ dev_err(dev, "missing usb phy resource\n");
+ return -EINVAL;
+ }
+
+ k_phy->phy_ctrl = devm_ioremap_resource(dev, res);
+ if (IS_ERR(k_phy->phy_ctrl))
+ return PTR_ERR(k_phy->phy_ctrl);
+
+ ret = usb_phy_gen_create_phy(dev, &k_phy->usb_phy_gen, NULL);
+ if (ret)
+ return ret;
+
+ k_phy->usb_phy_gen.phy.init = keystone_usbphy_init;
+ k_phy->usb_phy_gen.phy.shutdown = keystone_usbphy_shutdown;
+
+ platform_set_drvdata(pdev, k_phy);
+
+ ret = usb_add_phy_dev(&k_phy->usb_phy_gen.phy);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+static int keystone_usbphy_remove(struct platform_device *pdev)
+{
+ struct keystone_usbphy *k_phy = platform_get_drvdata(pdev);
+
+ usb_remove_phy(&k_phy->usb_phy_gen.phy);
+
+ return 0;
+}
+
+static const struct of_device_id keystone_usbphy_ids[] = {
+ { .compatible = "ti,keystone-usbphy" },
+ { }
+};
+MODULE_DEVICE_TABLE(of, keystone_usbphy_ids);
+
+static struct platform_driver keystone_usbphy_driver = {
+ .probe = keystone_usbphy_probe,
+ .remove = keystone_usbphy_remove,
+ .driver = {
+ .name = "keystone-usbphy",
+ .owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(keystone_usbphy_ids),
+ },
+};
+
+module_platform_driver(keystone_usbphy_driver);
+
+MODULE_ALIAS("platform:keystone-usbphy");
+MODULE_AUTHOR("Texas Instruments Inc.");
+MODULE_DESCRIPTION("Keystone USB phy driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index 5be6e91..2958e09 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -270,10 +270,11 @@
config DAVINCI_WATCHDOG
tristate "DaVinci watchdog"
- depends on ARCH_DAVINCI
+ depends on ARCH_DAVINCI || ARCH_KEYSTONE
+ select WATCHDOG_CORE
help
Say Y here if to include support for the watchdog timer
- in the DaVinci DM644x/DM646x processors.
+ in the DaVinci DM644x/DM646x or Keystone processors.
To compile this driver as a module, choose M here: the
module will be called davinci_wdt.
diff --git a/drivers/watchdog/davinci_wdt.c b/drivers/watchdog/davinci_wdt.c
index dd625cc..b1bae03 100644
--- a/drivers/watchdog/davinci_wdt.c
+++ b/drivers/watchdog/davinci_wdt.c
@@ -3,7 +3,7 @@
*
* Watchdog driver for DaVinci DM644x/DM646x processors
*
- * Copyright (C) 2006 Texas Instruments.
+ * Copyright (C) 2006-2013 Texas Instruments.
*
* 2007 (c) MontaVista Software, Inc. This file is licensed under
* the terms of the GNU General Public License version 2. This program
@@ -15,18 +15,12 @@
#include <linux/moduleparam.h>
#include <linux/types.h>
#include <linux/kernel.h>
-#include <linux/fs.h>
-#include <linux/miscdevice.h>
#include <linux/watchdog.h>
#include <linux/init.h>
-#include <linux/bitops.h>
#include <linux/platform_device.h>
-#include <linux/spinlock.h>
-#include <linux/uaccess.h>
#include <linux/io.h>
#include <linux/device.h>
#include <linux/clk.h>
-#include <linux/slab.h>
#include <linux/err.h>
#define MODULE_NAME "DAVINCI-WDT: "
@@ -61,142 +55,103 @@
#define WDKEY_SEQ0 (0xa5c6 << 16)
#define WDKEY_SEQ1 (0xda7e << 16)
-static int heartbeat = DEFAULT_HEARTBEAT;
+static int heartbeat;
-static DEFINE_SPINLOCK(io_lock);
-static unsigned long wdt_status;
-#define WDT_IN_USE 0
-#define WDT_OK_TO_CLOSE 1
-#define WDT_REGION_INITED 2
-#define WDT_DEVICE_INITED 3
+/*
+ * struct to hold data for each WDT device
+ * @base - base io address of WD device
+ * @clk - source clock of WDT
+ * @wdd - hold watchdog device as is in WDT core
+ */
+struct davinci_wdt_device {
+ void __iomem *base;
+ struct clk *clk;
+ struct watchdog_device wdd;
+};
-static void __iomem *wdt_base;
-struct clk *wdt_clk;
-
-static void wdt_service(void)
-{
- spin_lock(&io_lock);
-
- /* put watchdog in service state */
- iowrite32(WDKEY_SEQ0, wdt_base + WDTCR);
- /* put watchdog in active state */
- iowrite32(WDKEY_SEQ1, wdt_base + WDTCR);
-
- spin_unlock(&io_lock);
-}
-
-static void wdt_enable(void)
+static int davinci_wdt_start(struct watchdog_device *wdd)
{
u32 tgcr;
u32 timer_margin;
unsigned long wdt_freq;
+ struct davinci_wdt_device *davinci_wdt = watchdog_get_drvdata(wdd);
- wdt_freq = clk_get_rate(wdt_clk);
-
- spin_lock(&io_lock);
+ wdt_freq = clk_get_rate(davinci_wdt->clk);
/* disable, internal clock source */
- iowrite32(0, wdt_base + TCR);
+ iowrite32(0, davinci_wdt->base + TCR);
/* reset timer, set mode to 64-bit watchdog, and unreset */
- iowrite32(0, wdt_base + TGCR);
+ iowrite32(0, davinci_wdt->base + TGCR);
tgcr = TIMMODE_64BIT_WDOG | TIM12RS_UNRESET | TIM34RS_UNRESET;
- iowrite32(tgcr, wdt_base + TGCR);
+ iowrite32(tgcr, davinci_wdt->base + TGCR);
/* clear counter regs */
- iowrite32(0, wdt_base + TIM12);
- iowrite32(0, wdt_base + TIM34);
+ iowrite32(0, davinci_wdt->base + TIM12);
+ iowrite32(0, davinci_wdt->base + TIM34);
/* set timeout period */
- timer_margin = (((u64)heartbeat * wdt_freq) & 0xffffffff);
- iowrite32(timer_margin, wdt_base + PRD12);
- timer_margin = (((u64)heartbeat * wdt_freq) >> 32);
- iowrite32(timer_margin, wdt_base + PRD34);
+ timer_margin = (((u64)wdd->timeout * wdt_freq) & 0xffffffff);
+ iowrite32(timer_margin, davinci_wdt->base + PRD12);
+ timer_margin = (((u64)wdd->timeout * wdt_freq) >> 32);
+ iowrite32(timer_margin, davinci_wdt->base + PRD34);
/* enable run continuously */
- iowrite32(ENAMODE12_PERIODIC, wdt_base + TCR);
+ iowrite32(ENAMODE12_PERIODIC, davinci_wdt->base + TCR);
/* Once the WDT is in pre-active state write to
* TIM12, TIM34, PRD12, PRD34, TCR, TGCR, WDTCR are
* write protected (except for the WDKEY field)
*/
/* put watchdog in pre-active state */
- iowrite32(WDKEY_SEQ0 | WDEN, wdt_base + WDTCR);
+ iowrite32(WDKEY_SEQ0 | WDEN, davinci_wdt->base + WDTCR);
/* put watchdog in active state */
- iowrite32(WDKEY_SEQ1 | WDEN, wdt_base + WDTCR);
-
- spin_unlock(&io_lock);
-}
-
-static int davinci_wdt_open(struct inode *inode, struct file *file)
-{
- if (test_and_set_bit(WDT_IN_USE, &wdt_status))
- return -EBUSY;
-
- wdt_enable();
-
- return nonseekable_open(inode, file);
-}
-
-static ssize_t
-davinci_wdt_write(struct file *file, const char *data, size_t len,
- loff_t *ppos)
-{
- if (len)
- wdt_service();
-
- return len;
-}
-
-static const struct watchdog_info ident = {
- .options = WDIOF_KEEPALIVEPING,
- .identity = "DaVinci Watchdog",
-};
-
-static long davinci_wdt_ioctl(struct file *file,
- unsigned int cmd, unsigned long arg)
-{
- int ret = -ENOTTY;
-
- switch (cmd) {
- case WDIOC_GETSUPPORT:
- ret = copy_to_user((struct watchdog_info *)arg, &ident,
- sizeof(ident)) ? -EFAULT : 0;
- break;
-
- case WDIOC_GETSTATUS:
- case WDIOC_GETBOOTSTATUS:
- ret = put_user(0, (int *)arg);
- break;
-
- case WDIOC_KEEPALIVE:
- wdt_service();
- ret = 0;
- break;
-
- case WDIOC_GETTIMEOUT:
- ret = put_user(heartbeat, (int *)arg);
- break;
- }
- return ret;
-}
-
-static int davinci_wdt_release(struct inode *inode, struct file *file)
-{
- wdt_service();
- clear_bit(WDT_IN_USE, &wdt_status);
-
+ iowrite32(WDKEY_SEQ1 | WDEN, davinci_wdt->base + WDTCR);
return 0;
}
-static const struct file_operations davinci_wdt_fops = {
- .owner = THIS_MODULE,
- .llseek = no_llseek,
- .write = davinci_wdt_write,
- .unlocked_ioctl = davinci_wdt_ioctl,
- .open = davinci_wdt_open,
- .release = davinci_wdt_release,
+static int davinci_wdt_ping(struct watchdog_device *wdd)
+{
+ struct davinci_wdt_device *davinci_wdt = watchdog_get_drvdata(wdd);
+
+ /* put watchdog in service state */
+ iowrite32(WDKEY_SEQ0, davinci_wdt->base + WDTCR);
+ /* put watchdog in active state */
+ iowrite32(WDKEY_SEQ1, davinci_wdt->base + WDTCR);
+ return 0;
+}
+
+static unsigned int davinci_wdt_get_timeleft(struct watchdog_device *wdd)
+{
+ u64 timer_counter;
+ unsigned long freq;
+ u32 val;
+ struct davinci_wdt_device *davinci_wdt = watchdog_get_drvdata(wdd);
+
+ /* if timeout has occured then return 0 */
+ val = ioread32(davinci_wdt->base + WDTCR);
+ if (val & WDFLAG)
+ return 0;
+
+ freq = clk_get_rate(davinci_wdt->clk);
+
+ if (!freq)
+ return 0;
+
+ timer_counter = ioread32(davinci_wdt->base + TIM12);
+ timer_counter |= ((u64)ioread32(davinci_wdt->base + TIM34) << 32);
+
+ do_div(timer_counter, freq);
+
+ return wdd->timeout - timer_counter;
+}
+
+static const struct watchdog_info davinci_wdt_info = {
+ .options = WDIOF_KEEPALIVEPING,
+ .identity = "DaVinci/Keystone Watchdog",
};
-static struct miscdevice davinci_wdt_miscdev = {
- .minor = WATCHDOG_MINOR,
- .name = "watchdog",
- .fops = &davinci_wdt_fops,
+static const struct watchdog_ops davinci_wdt_ops = {
+ .owner = THIS_MODULE,
+ .start = davinci_wdt_start,
+ .stop = davinci_wdt_ping,
+ .ping = davinci_wdt_ping,
+ .get_timeleft = davinci_wdt_get_timeleft,
};
static int davinci_wdt_probe(struct platform_device *pdev)
@@ -204,37 +159,53 @@
int ret = 0;
struct device *dev = &pdev->dev;
struct resource *wdt_mem;
+ struct watchdog_device *wdd;
+ struct davinci_wdt_device *davinci_wdt;
- wdt_clk = devm_clk_get(dev, NULL);
- if (WARN_ON(IS_ERR(wdt_clk)))
- return PTR_ERR(wdt_clk);
+ davinci_wdt = devm_kzalloc(dev, sizeof(*davinci_wdt), GFP_KERNEL);
+ if (!davinci_wdt)
+ return -ENOMEM;
- clk_prepare_enable(wdt_clk);
+ davinci_wdt->clk = devm_clk_get(dev, NULL);
+ if (WARN_ON(IS_ERR(davinci_wdt->clk)))
+ return PTR_ERR(davinci_wdt->clk);
- if (heartbeat < 1 || heartbeat > MAX_HEARTBEAT)
- heartbeat = DEFAULT_HEARTBEAT;
+ clk_prepare_enable(davinci_wdt->clk);
- dev_info(dev, "heartbeat %d sec\n", heartbeat);
+ platform_set_drvdata(pdev, davinci_wdt);
+
+ wdd = &davinci_wdt->wdd;
+ wdd->info = &davinci_wdt_info;
+ wdd->ops = &davinci_wdt_ops;
+ wdd->min_timeout = 1;
+ wdd->max_timeout = MAX_HEARTBEAT;
+ wdd->timeout = DEFAULT_HEARTBEAT;
+
+ watchdog_init_timeout(wdd, heartbeat, dev);
+
+ dev_info(dev, "heartbeat %d sec\n", wdd->timeout);
+
+ watchdog_set_drvdata(wdd, davinci_wdt);
+ watchdog_set_nowayout(wdd, 1);
wdt_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- wdt_base = devm_ioremap_resource(dev, wdt_mem);
- if (IS_ERR(wdt_base))
- return PTR_ERR(wdt_base);
+ davinci_wdt->base = devm_ioremap_resource(dev, wdt_mem);
+ if (IS_ERR(davinci_wdt->base))
+ return PTR_ERR(davinci_wdt->base);
- ret = misc_register(&davinci_wdt_miscdev);
- if (ret < 0) {
- dev_err(dev, "cannot register misc device\n");
- } else {
- set_bit(WDT_DEVICE_INITED, &wdt_status);
- }
+ ret = watchdog_register_device(wdd);
+ if (ret < 0)
+ dev_err(dev, "cannot register watchdog device\n");
return ret;
}
static int davinci_wdt_remove(struct platform_device *pdev)
{
- misc_deregister(&davinci_wdt_miscdev);
- clk_disable_unprepare(wdt_clk);
+ struct davinci_wdt_device *davinci_wdt = platform_get_drvdata(pdev);
+
+ watchdog_unregister_device(&davinci_wdt->wdd);
+ clk_disable_unprepare(davinci_wdt->clk);
return 0;
}
@@ -247,7 +218,7 @@
static struct platform_driver platform_wdt_driver = {
.driver = {
- .name = "watchdog",
+ .name = "davinci-wdt",
.owner = THIS_MODULE,
.of_match_table = davinci_wdt_of_match,
},
@@ -267,4 +238,4 @@
__MODULE_STRING(DEFAULT_HEARTBEAT));
MODULE_LICENSE("GPL");
-MODULE_ALIAS("platform:watchdog");
+MODULE_ALIAS("platform:davinci-wdt");
diff --git a/include/linux/platform_data/gpio-davinci.h b/include/linux/platform_data/gpio-davinci.h
index 6efd202..0c3551b 100644
--- a/include/linux/platform_data/gpio-davinci.h
+++ b/include/linux/platform_data/gpio-davinci.h
@@ -34,7 +34,7 @@
struct davinci_gpio_controller {
struct gpio_chip chip;
- int irq_base;
+ struct irq_domain *irq_domain;
/* Serialize access to GPIO registers */
spinlock_t lock;
void __iomem *regs;
diff --git a/include/linux/platform_data/mtd-davinci-aemif.h b/include/linux/platform_data/mtd-davinci-aemif.h
index 05b2934..97948ac 100644
--- a/include/linux/platform_data/mtd-davinci-aemif.h
+++ b/include/linux/platform_data/mtd-davinci-aemif.h
@@ -10,6 +10,8 @@
#ifndef _MACH_DAVINCI_AEMIF_H
#define _MACH_DAVINCI_AEMIF_H
+#include <linux/platform_device.h>
+
#define NRCSR_OFFSET 0x00
#define AWCCR_OFFSET 0x04
#define A1CR_OFFSET 0x10
@@ -31,6 +33,5 @@
u8 ta;
};
-int davinci_aemif_setup_timing(struct davinci_aemif_timing *t,
- void __iomem *base, unsigned cs);
+int davinci_aemif_setup(struct platform_device *pdev);
#endif
