| From 5fe073b39a005a914c0650290142642afbe27f95 Mon Sep 17 00:00:00 2001 |
| From: Valentine Barshak <valentine.barshak@cogentembedded.com> |
| Date: Sat, 25 Jan 2014 02:28:47 +0400 |
| Subject: ARM: shmobile: lager: Add USBHS support |
| |
| This adds USBHS PHY and registers USBHS device if the driver is enabled. |
| |
| Signed-off-by: Valentine Barshak <valentine.barshak@cogentembedded.com> |
| Acked-by: Magnus Damm <damm@opensource.se> |
| Signed-off-by: Simon Horman <horms+renesas@verge.net.au> |
| (cherry picked from commit 1eabe028f8aacd7367fbdda9596cd3d64659a49f) |
| Signed-off-by: Simon Horman <horms+renesas@verge.net.au> |
| --- |
| arch/arm/mach-shmobile/board-lager.c | 138 +++++++++++++++++++++++++++++++++++ |
| 1 file changed, 138 insertions(+) |
| |
| diff --git a/arch/arm/mach-shmobile/board-lager.c b/arch/arm/mach-shmobile/board-lager.c |
| index 8dde4462f600..4a95a4593eb1 100644 |
| --- a/arch/arm/mach-shmobile/board-lager.c |
| +++ b/arch/arm/mach-shmobile/board-lager.c |
| @@ -30,6 +30,7 @@ |
| #include <linux/platform_data/camera-rcar.h> |
| #include <linux/platform_data/gpio-rcar.h> |
| #include <linux/platform_data/rcar-du.h> |
| +#include <linux/platform_data/usb-rcar-gen2-phy.h> |
| #include <linux/platform_device.h> |
| #include <linux/phy.h> |
| #include <linux/regulator/driver.h> |
| @@ -37,6 +38,8 @@ |
| #include <linux/regulator/gpio-regulator.h> |
| #include <linux/regulator/machine.h> |
| #include <linux/sh_eth.h> |
| +#include <linux/usb/phy.h> |
| +#include <linux/usb/renesas_usbhs.h> |
| #include <mach/common.h> |
| #include <mach/irqs.h> |
| #include <mach/r8a7790.h> |
| @@ -364,6 +367,131 @@ static const struct platform_device_info sata1_info __initconst = { |
| .dma_mask = DMA_BIT_MASK(32), |
| }; |
| |
| +/* USBHS */ |
| +#if IS_ENABLED(CONFIG_USB_RENESAS_USBHS_UDC) |
| +static const struct resource usbhs_resources[] __initconst = { |
| + DEFINE_RES_MEM(0xe6590000, 0x100), |
| + DEFINE_RES_IRQ(gic_spi(107)), |
| +}; |
| + |
| +struct usbhs_private { |
| + struct renesas_usbhs_platform_info info; |
| + struct usb_phy *phy; |
| +}; |
| + |
| +#define usbhs_get_priv(pdev) \ |
| + container_of(renesas_usbhs_get_info(pdev), struct usbhs_private, info) |
| + |
| +static int usbhs_power_ctrl(struct platform_device *pdev, |
| + void __iomem *base, int enable) |
| +{ |
| + struct usbhs_private *priv = usbhs_get_priv(pdev); |
| + |
| + if (!priv->phy) |
| + return -ENODEV; |
| + |
| + if (enable) { |
| + int retval = usb_phy_init(priv->phy); |
| + |
| + if (!retval) |
| + retval = usb_phy_set_suspend(priv->phy, 0); |
| + return retval; |
| + } |
| + |
| + usb_phy_set_suspend(priv->phy, 1); |
| + usb_phy_shutdown(priv->phy); |
| + return 0; |
| +} |
| + |
| +static int usbhs_hardware_init(struct platform_device *pdev) |
| +{ |
| + struct usbhs_private *priv = usbhs_get_priv(pdev); |
| + struct usb_phy *phy; |
| + |
| + phy = usb_get_phy_dev(&pdev->dev, 0); |
| + if (IS_ERR(phy)) |
| + return PTR_ERR(phy); |
| + |
| + priv->phy = phy; |
| + return 0; |
| +} |
| + |
| +static int usbhs_hardware_exit(struct platform_device *pdev) |
| +{ |
| + struct usbhs_private *priv = usbhs_get_priv(pdev); |
| + |
| + if (!priv->phy) |
| + return 0; |
| + |
| + usb_put_phy(priv->phy); |
| + priv->phy = NULL; |
| + return 0; |
| +} |
| + |
| +static int usbhs_get_id(struct platform_device *pdev) |
| +{ |
| + return USBHS_GADGET; |
| +} |
| + |
| +static u32 lager_usbhs_pipe_type[] = { |
| + USB_ENDPOINT_XFER_CONTROL, |
| + USB_ENDPOINT_XFER_ISOC, |
| + USB_ENDPOINT_XFER_ISOC, |
| + USB_ENDPOINT_XFER_BULK, |
| + USB_ENDPOINT_XFER_BULK, |
| + USB_ENDPOINT_XFER_BULK, |
| + USB_ENDPOINT_XFER_INT, |
| + USB_ENDPOINT_XFER_INT, |
| + USB_ENDPOINT_XFER_INT, |
| + USB_ENDPOINT_XFER_BULK, |
| + USB_ENDPOINT_XFER_BULK, |
| + USB_ENDPOINT_XFER_BULK, |
| + USB_ENDPOINT_XFER_BULK, |
| + USB_ENDPOINT_XFER_BULK, |
| + USB_ENDPOINT_XFER_BULK, |
| + USB_ENDPOINT_XFER_BULK, |
| +}; |
| + |
| +static struct usbhs_private usbhs_priv __initdata = { |
| + .info = { |
| + .platform_callback = { |
| + .power_ctrl = usbhs_power_ctrl, |
| + .hardware_init = usbhs_hardware_init, |
| + .hardware_exit = usbhs_hardware_exit, |
| + .get_id = usbhs_get_id, |
| + }, |
| + .driver_param = { |
| + .buswait_bwait = 4, |
| + .pipe_type = lager_usbhs_pipe_type, |
| + .pipe_size = ARRAY_SIZE(lager_usbhs_pipe_type), |
| + }, |
| + } |
| +}; |
| + |
| +static void __init lager_register_usbhs(void) |
| +{ |
| + usb_bind_phy("renesas_usbhs", 0, "usb_phy_rcar_gen2"); |
| + platform_device_register_resndata(&platform_bus, |
| + "renesas_usbhs", -1, |
| + usbhs_resources, |
| + ARRAY_SIZE(usbhs_resources), |
| + &usbhs_priv.info, |
| + sizeof(usbhs_priv.info)); |
| +} |
| +#else /* CONFIG_USB_RENESAS_USBHS_UDC */ |
| +static inline void lager_register_usbhs(void) { } |
| +#endif /* CONFIG_USB_RENESAS_USBHS_UDC */ |
| + |
| +/* USBHS PHY */ |
| +static const struct rcar_gen2_phy_platform_data usbhs_phy_pdata __initconst = { |
| + .chan0_pci = 0, /* Channel 0 is USBHS */ |
| + .chan2_pci = 1, /* Channel 2 is PCI USB */ |
| +}; |
| + |
| +static const struct resource usbhs_phy_resources[] __initconst = { |
| + DEFINE_RES_MEM(0xe6590100, 0x100), |
| +}; |
| + |
| static const struct pinctrl_map lager_pinctrl_map[] = { |
| /* DU (CN10: ARGB0, CN13: LVDS) */ |
| PIN_MAP_MUX_GROUP_DEFAULT("rcar-du-r8a7790", "pfc-r8a7790", |
| @@ -408,6 +536,9 @@ static const struct pinctrl_map lager_pinctrl_map[] = { |
| "vin1_data8", "vin1"), |
| PIN_MAP_MUX_GROUP_DEFAULT("r8a7790-vin.1", "pfc-r8a7790", |
| "vin1_clk", "vin1"), |
| + /* USB0 */ |
| + PIN_MAP_MUX_GROUP_DEFAULT("renesas_usbhs", "pfc-r8a7790", |
| + "usb0", "usb0"), |
| }; |
| |
| static void __init lager_add_standard_devices(void) |
| @@ -461,6 +592,13 @@ static void __init lager_add_standard_devices(void) |
| lager_add_camera1_device(); |
| |
| platform_device_register_full(&sata1_info); |
| + |
| + platform_device_register_resndata(&platform_bus, "usb_phy_rcar_gen2", |
| + -1, usbhs_phy_resources, |
| + ARRAY_SIZE(usbhs_phy_resources), |
| + &usbhs_phy_pdata, |
| + sizeof(usbhs_phy_pdata)); |
| + lager_register_usbhs(); |
| } |
| |
| /* |
| -- |
| 2.1.2 |
| |