| /* |
| * Copyright (C) 2011 Freescale Semiconductor, Inc. All Rights Reserved. |
| */ |
| |
| /* |
| * 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. |
| |
| * 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. |
| |
| * You should have received a copy of the GNU General Public License along |
| * with this program; if not, write to the Free Software Foundation, Inc., |
| * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| */ |
| |
| #include <linux/init.h> |
| #include <linux/clk.h> |
| #include <linux/delay.h> |
| #include <linux/gpio.h> |
| |
| #include <mach/common.h> |
| #include <mach/hardware.h> |
| #include <mach/iomux-mx53.h> |
| |
| #include <asm/mach-types.h> |
| #include <asm/mach/arch.h> |
| #include <asm/mach/time.h> |
| |
| #include "crm_regs.h" |
| #include "devices-imx53.h" |
| |
| #define MX53_LOCO_POWER IMX_GPIO_NR(1, 8) |
| #define MX53_LOCO_UI1 IMX_GPIO_NR(2, 14) |
| #define MX53_LOCO_UI2 IMX_GPIO_NR(2, 15) |
| #define LOCO_FEC_PHY_RST IMX_GPIO_NR(7, 6) |
| #define LOCO_LED IMX_GPIO_NR(7, 7) |
| #define LOCO_SD3_CD IMX_GPIO_NR(3, 11) |
| #define LOCO_SD3_WP IMX_GPIO_NR(3, 12) |
| #define LOCO_SD1_CD IMX_GPIO_NR(3, 13) |
| |
| static iomux_v3_cfg_t mx53_loco_pads[] = { |
| /* FEC */ |
| MX53_PAD_FEC_MDC__FEC_MDC, |
| MX53_PAD_FEC_MDIO__FEC_MDIO, |
| MX53_PAD_FEC_REF_CLK__FEC_TX_CLK, |
| MX53_PAD_FEC_RX_ER__FEC_RX_ER, |
| MX53_PAD_FEC_CRS_DV__FEC_RX_DV, |
| MX53_PAD_FEC_RXD1__FEC_RDATA_1, |
| MX53_PAD_FEC_RXD0__FEC_RDATA_0, |
| MX53_PAD_FEC_TX_EN__FEC_TX_EN, |
| MX53_PAD_FEC_TXD1__FEC_TDATA_1, |
| MX53_PAD_FEC_TXD0__FEC_TDATA_0, |
| /* FEC_nRST */ |
| MX53_PAD_PATA_DA_0__GPIO7_6, |
| /* FEC_nINT */ |
| MX53_PAD_PATA_DATA4__GPIO2_4, |
| /* AUDMUX5 */ |
| MX53_PAD_KEY_COL0__AUDMUX_AUD5_TXC, |
| MX53_PAD_KEY_ROW0__AUDMUX_AUD5_TXD, |
| MX53_PAD_KEY_COL1__AUDMUX_AUD5_TXFS, |
| MX53_PAD_KEY_ROW1__AUDMUX_AUD5_RXD, |
| /* I2C2 */ |
| MX53_PAD_KEY_COL3__I2C2_SCL, |
| MX53_PAD_KEY_ROW3__I2C2_SDA, |
| /* SD1 */ |
| MX53_PAD_SD1_CMD__ESDHC1_CMD, |
| MX53_PAD_SD1_CLK__ESDHC1_CLK, |
| MX53_PAD_SD1_DATA0__ESDHC1_DAT0, |
| MX53_PAD_SD1_DATA1__ESDHC1_DAT1, |
| MX53_PAD_SD1_DATA2__ESDHC1_DAT2, |
| MX53_PAD_SD1_DATA3__ESDHC1_DAT3, |
| /* SD1_CD */ |
| MX53_PAD_EIM_DA13__GPIO3_13, |
| /* SD3 */ |
| MX53_PAD_PATA_DATA8__ESDHC3_DAT0, |
| MX53_PAD_PATA_DATA9__ESDHC3_DAT1, |
| MX53_PAD_PATA_DATA10__ESDHC3_DAT2, |
| MX53_PAD_PATA_DATA11__ESDHC3_DAT3, |
| MX53_PAD_PATA_DATA0__ESDHC3_DAT4, |
| MX53_PAD_PATA_DATA1__ESDHC3_DAT5, |
| MX53_PAD_PATA_DATA2__ESDHC3_DAT6, |
| MX53_PAD_PATA_DATA3__ESDHC3_DAT7, |
| MX53_PAD_PATA_IORDY__ESDHC3_CLK, |
| MX53_PAD_PATA_RESET_B__ESDHC3_CMD, |
| /* SD3_CD */ |
| MX53_PAD_EIM_DA11__GPIO3_11, |
| /* SD3_WP */ |
| MX53_PAD_EIM_DA12__GPIO3_12, |
| /* VGA */ |
| MX53_PAD_EIM_OE__IPU_DI1_PIN7, |
| MX53_PAD_EIM_RW__IPU_DI1_PIN8, |
| /* DISPLB */ |
| MX53_PAD_EIM_D20__IPU_SER_DISP0_CS, |
| MX53_PAD_EIM_D21__IPU_DISPB0_SER_CLK, |
| MX53_PAD_EIM_D22__IPU_DISPB0_SER_DIN, |
| MX53_PAD_EIM_D23__IPU_DI0_D0_CS, |
| /* DISP0_POWER_EN */ |
| MX53_PAD_EIM_D24__GPIO3_24, |
| /* DISP0 DET INT */ |
| MX53_PAD_EIM_D31__GPIO3_31, |
| /* LVDS */ |
| MX53_PAD_LVDS0_TX3_P__LDB_LVDS0_TX3, |
| MX53_PAD_LVDS0_CLK_P__LDB_LVDS0_CLK, |
| MX53_PAD_LVDS0_TX2_P__LDB_LVDS0_TX2, |
| MX53_PAD_LVDS0_TX1_P__LDB_LVDS0_TX1, |
| MX53_PAD_LVDS0_TX0_P__LDB_LVDS0_TX0, |
| MX53_PAD_LVDS1_TX3_P__LDB_LVDS1_TX3, |
| MX53_PAD_LVDS1_TX2_P__LDB_LVDS1_TX2, |
| MX53_PAD_LVDS1_CLK_P__LDB_LVDS1_CLK, |
| MX53_PAD_LVDS1_TX1_P__LDB_LVDS1_TX1, |
| MX53_PAD_LVDS1_TX0_P__LDB_LVDS1_TX0, |
| /* I2C1 */ |
| MX53_PAD_CSI0_DAT8__I2C1_SDA, |
| MX53_PAD_CSI0_DAT9__I2C1_SCL, |
| /* UART1 */ |
| MX53_PAD_CSI0_DAT10__UART1_TXD_MUX, |
| MX53_PAD_CSI0_DAT11__UART1_RXD_MUX, |
| /* CSI0 */ |
| MX53_PAD_CSI0_DAT12__IPU_CSI0_D_12, |
| MX53_PAD_CSI0_DAT13__IPU_CSI0_D_13, |
| MX53_PAD_CSI0_DAT14__IPU_CSI0_D_14, |
| MX53_PAD_CSI0_DAT15__IPU_CSI0_D_15, |
| MX53_PAD_CSI0_DAT16__IPU_CSI0_D_16, |
| MX53_PAD_CSI0_DAT17__IPU_CSI0_D_17, |
| MX53_PAD_CSI0_DAT18__IPU_CSI0_D_18, |
| MX53_PAD_CSI0_DAT19__IPU_CSI0_D_19, |
| MX53_PAD_CSI0_VSYNC__IPU_CSI0_VSYNC, |
| MX53_PAD_CSI0_MCLK__IPU_CSI0_HSYNC, |
| MX53_PAD_CSI0_PIXCLK__IPU_CSI0_PIXCLK, |
| /* DISPLAY */ |
| MX53_PAD_DI0_DISP_CLK__IPU_DI0_DISP_CLK, |
| MX53_PAD_DI0_PIN15__IPU_DI0_PIN15, |
| MX53_PAD_DI0_PIN2__IPU_DI0_PIN2, |
| MX53_PAD_DI0_PIN3__IPU_DI0_PIN3, |
| MX53_PAD_DISP0_DAT0__IPU_DISP0_DAT_0, |
| MX53_PAD_DISP0_DAT1__IPU_DISP0_DAT_1, |
| MX53_PAD_DISP0_DAT2__IPU_DISP0_DAT_2, |
| MX53_PAD_DISP0_DAT3__IPU_DISP0_DAT_3, |
| MX53_PAD_DISP0_DAT4__IPU_DISP0_DAT_4, |
| MX53_PAD_DISP0_DAT5__IPU_DISP0_DAT_5, |
| MX53_PAD_DISP0_DAT6__IPU_DISP0_DAT_6, |
| MX53_PAD_DISP0_DAT7__IPU_DISP0_DAT_7, |
| MX53_PAD_DISP0_DAT8__IPU_DISP0_DAT_8, |
| MX53_PAD_DISP0_DAT9__IPU_DISP0_DAT_9, |
| MX53_PAD_DISP0_DAT10__IPU_DISP0_DAT_10, |
| MX53_PAD_DISP0_DAT11__IPU_DISP0_DAT_11, |
| MX53_PAD_DISP0_DAT12__IPU_DISP0_DAT_12, |
| MX53_PAD_DISP0_DAT13__IPU_DISP0_DAT_13, |
| MX53_PAD_DISP0_DAT14__IPU_DISP0_DAT_14, |
| MX53_PAD_DISP0_DAT15__IPU_DISP0_DAT_15, |
| MX53_PAD_DISP0_DAT16__IPU_DISP0_DAT_16, |
| MX53_PAD_DISP0_DAT17__IPU_DISP0_DAT_17, |
| MX53_PAD_DISP0_DAT18__IPU_DISP0_DAT_18, |
| MX53_PAD_DISP0_DAT19__IPU_DISP0_DAT_19, |
| MX53_PAD_DISP0_DAT20__IPU_DISP0_DAT_20, |
| MX53_PAD_DISP0_DAT21__IPU_DISP0_DAT_21, |
| MX53_PAD_DISP0_DAT22__IPU_DISP0_DAT_22, |
| MX53_PAD_DISP0_DAT23__IPU_DISP0_DAT_23, |
| /* Audio CLK*/ |
| MX53_PAD_GPIO_0__CCM_SSI_EXT1_CLK, |
| /* PWM */ |
| MX53_PAD_GPIO_1__PWM2_PWMO, |
| /* SPDIF */ |
| MX53_PAD_GPIO_7__SPDIF_PLOCK, |
| MX53_PAD_GPIO_17__SPDIF_OUT1, |
| /* GPIO */ |
| MX53_PAD_PATA_DA_1__GPIO7_7, /* LED */ |
| MX53_PAD_PATA_DA_2__GPIO7_8, |
| MX53_PAD_PATA_DATA5__GPIO2_5, |
| MX53_PAD_PATA_DATA6__GPIO2_6, |
| MX53_PAD_PATA_DATA14__GPIO2_14, |
| MX53_PAD_PATA_DATA15__GPIO2_15, |
| MX53_PAD_PATA_INTRQ__GPIO7_2, |
| MX53_PAD_EIM_WAIT__GPIO5_0, |
| MX53_PAD_NANDF_WP_B__GPIO6_9, |
| MX53_PAD_NANDF_RB0__GPIO6_10, |
| MX53_PAD_NANDF_CS1__GPIO6_14, |
| MX53_PAD_NANDF_CS2__GPIO6_15, |
| MX53_PAD_NANDF_CS3__GPIO6_16, |
| MX53_PAD_GPIO_5__GPIO1_5, |
| MX53_PAD_GPIO_16__GPIO7_11, |
| MX53_PAD_GPIO_8__GPIO1_8, |
| }; |
| |
| #define GPIO_BUTTON(gpio_num, ev_code, act_low, descr, wake) \ |
| { \ |
| .gpio = gpio_num, \ |
| .type = EV_KEY, \ |
| .code = ev_code, \ |
| .active_low = act_low, \ |
| .desc = "btn " descr, \ |
| .wakeup = wake, \ |
| } |
| |
| static struct gpio_keys_button loco_buttons[] = { |
| GPIO_BUTTON(MX53_LOCO_POWER, KEY_POWER, 1, "power", 0), |
| GPIO_BUTTON(MX53_LOCO_UI1, KEY_VOLUMEUP, 1, "volume-up", 0), |
| GPIO_BUTTON(MX53_LOCO_UI2, KEY_VOLUMEDOWN, 1, "volume-down", 0), |
| }; |
| |
| static const struct gpio_keys_platform_data loco_button_data __initconst = { |
| .buttons = loco_buttons, |
| .nbuttons = ARRAY_SIZE(loco_buttons), |
| }; |
| |
| static const struct esdhc_platform_data mx53_loco_sd1_data __initconst = { |
| .cd_gpio = LOCO_SD1_CD, |
| .cd_type = ESDHC_CD_GPIO, |
| .wp_type = ESDHC_WP_NONE, |
| }; |
| |
| static const struct esdhc_platform_data mx53_loco_sd3_data __initconst = { |
| .cd_gpio = LOCO_SD3_CD, |
| .wp_gpio = LOCO_SD3_WP, |
| .cd_type = ESDHC_CD_GPIO, |
| .wp_type = ESDHC_WP_GPIO, |
| }; |
| |
| static inline void mx53_loco_fec_reset(void) |
| { |
| int ret; |
| |
| /* reset FEC PHY */ |
| ret = gpio_request(LOCO_FEC_PHY_RST, "fec-phy-reset"); |
| if (ret) { |
| printk(KERN_ERR"failed to get GPIO_FEC_PHY_RESET: %d\n", ret); |
| return; |
| } |
| gpio_direction_output(LOCO_FEC_PHY_RST, 0); |
| msleep(1); |
| gpio_set_value(LOCO_FEC_PHY_RST, 1); |
| } |
| |
| static struct fec_platform_data mx53_loco_fec_data = { |
| .phy = PHY_INTERFACE_MODE_RMII, |
| }; |
| |
| static const struct imxi2c_platform_data mx53_loco_i2c_data __initconst = { |
| .bitrate = 100000, |
| }; |
| |
| static const struct gpio_led mx53loco_leds[] __initconst = { |
| { |
| .name = "green", |
| .default_trigger = "heartbeat", |
| .gpio = LOCO_LED, |
| }, |
| }; |
| |
| static const struct gpio_led_platform_data mx53loco_leds_data __initconst = { |
| .leds = mx53loco_leds, |
| .num_leds = ARRAY_SIZE(mx53loco_leds), |
| }; |
| |
| static void __init mx53_loco_board_init(void) |
| { |
| imx53_soc_init(); |
| |
| mxc_iomux_v3_setup_multiple_pads(mx53_loco_pads, |
| ARRAY_SIZE(mx53_loco_pads)); |
| imx53_add_imx_uart(0, NULL); |
| mx53_loco_fec_reset(); |
| imx53_add_fec(&mx53_loco_fec_data); |
| imx53_add_imx2_wdt(0, NULL); |
| imx53_add_imx_i2c(0, &mx53_loco_i2c_data); |
| imx53_add_imx_i2c(1, &mx53_loco_i2c_data); |
| imx53_add_sdhci_esdhc_imx(0, &mx53_loco_sd1_data); |
| imx53_add_sdhci_esdhc_imx(2, &mx53_loco_sd3_data); |
| imx_add_gpio_keys(&loco_button_data); |
| gpio_led_register_device(-1, &mx53loco_leds_data); |
| imx53_add_ahci_imx(); |
| } |
| |
| static void __init mx53_loco_timer_init(void) |
| { |
| mx53_clocks_init(32768, 24000000, 0, 0); |
| } |
| |
| static struct sys_timer mx53_loco_timer = { |
| .init = mx53_loco_timer_init, |
| }; |
| |
| MACHINE_START(MX53_LOCO, "Freescale MX53 LOCO Board") |
| .map_io = mx53_map_io, |
| .init_early = imx53_init_early, |
| .init_irq = mx53_init_irq, |
| .timer = &mx53_loco_timer, |
| .init_machine = mx53_loco_board_init, |
| MACHINE_END |
