diff options
Diffstat (limited to 'arch/arm/mach-mx5/board-mx51_efikamx.c')
| -rw-r--r-- | arch/arm/mach-mx5/board-mx51_efikamx.c | 247 |
1 files changed, 246 insertions, 1 deletions
diff --git a/arch/arm/mach-mx5/board-mx51_efikamx.c b/arch/arm/mach-mx5/board-mx51_efikamx.c index 6e623bda3ee..b7946f8e8d4 100644 --- a/arch/arm/mach-mx5/board-mx51_efikamx.c +++ b/arch/arm/mach-mx5/board-mx51_efikamx.c @@ -18,9 +18,13 @@ #include <linux/platform_device.h> #include <linux/i2c.h> #include <linux/gpio.h> +#include <linux/leds.h> +#include <linux/input.h> #include <linux/delay.h> #include <linux/io.h> #include <linux/fsl_devices.h> +#include <linux/spi/flash.h> +#include <linux/spi/spi.h> #include <mach/common.h> #include <mach/hardware.h> @@ -39,12 +43,81 @@ #define MX51_USB_PLL_DIV_24_MHZ 0x01 -static struct pad_desc mx51efikamx_pads[] = { +#define EFIKAMX_PCBID0 IMX_GPIO_NR(3, 16) +#define EFIKAMX_PCBID1 IMX_GPIO_NR(3, 17) +#define EFIKAMX_PCBID2 IMX_GPIO_NR(3, 11) + +#define EFIKAMX_BLUE_LED IMX_GPIO_NR(3, 13) +#define EFIKAMX_GREEN_LED IMX_GPIO_NR(3, 14) +#define EFIKAMX_RED_LED IMX_GPIO_NR(3, 15) + +#define EFIKAMX_POWER_KEY IMX_GPIO_NR(2, 31) + +#define EFIKAMX_SPI_CS0 IMX_GPIO_NR(4, 24) +#define EFIKAMX_SPI_CS1 IMX_GPIO_NR(4, 25) + +/* board 1.1 doesn't have same reset gpio */ +#define EFIKAMX_RESET1_1 IMX_GPIO_NR(3, 2) +#define EFIKAMX_RESET IMX_GPIO_NR(1, 4) + +/* the pci ids pin have pull up. they're driven low according to board id */ +#define MX51_PAD_PCBID0 IOMUX_PAD(0x518, 0x130, 3, 0x0, 0, PAD_CTL_PUS_100K_UP) +#define MX51_PAD_PCBID1 IOMUX_PAD(0x51C, 0x134, 3, 0x0, 0, PAD_CTL_PUS_100K_UP) +#define MX51_PAD_PCBID2 IOMUX_PAD(0x504, 0x128, 3, 0x0, 0, PAD_CTL_PUS_100K_UP) +#define MX51_PAD_PWRKEY IOMUX_PAD(0x48c, 0x0f8, 1, 0x0, 0, PAD_CTL_PUS_100K_UP | PAD_CTL_PKE) + +static iomux_v3_cfg_t mx51efikamx_pads[] = { /* UART1 */ MX51_PAD_UART1_RXD__UART1_RXD, MX51_PAD_UART1_TXD__UART1_TXD, MX51_PAD_UART1_RTS__UART1_RTS, MX51_PAD_UART1_CTS__UART1_CTS, + /* board id */ + MX51_PAD_PCBID0, + MX51_PAD_PCBID1, + MX51_PAD_PCBID2, + + /* SD 1 */ + MX51_PAD_SD1_CMD__SD1_CMD, + MX51_PAD_SD1_CLK__SD1_CLK, + MX51_PAD_SD1_DATA0__SD1_DATA0, + MX51_PAD_SD1_DATA1__SD1_DATA1, + MX51_PAD_SD1_DATA2__SD1_DATA2, + MX51_PAD_SD1_DATA3__SD1_DATA3, + + /* SD 2 */ + MX51_PAD_SD2_CMD__SD2_CMD, + MX51_PAD_SD2_CLK__SD2_CLK, + MX51_PAD_SD2_DATA0__SD2_DATA0, + MX51_PAD_SD2_DATA1__SD2_DATA1, + MX51_PAD_SD2_DATA2__SD2_DATA2, + MX51_PAD_SD2_DATA3__SD2_DATA3, + + /* SD/MMC WP/CD */ + MX51_PAD_GPIO1_0__SD1_CD, + MX51_PAD_GPIO1_1__SD1_WP, + MX51_PAD_GPIO1_7__SD2_WP, + MX51_PAD_GPIO1_8__SD2_CD, + + /* leds */ + MX51_PAD_CSI1_D9__GPIO3_13, + MX51_PAD_CSI1_VSYNC__GPIO3_14, + MX51_PAD_CSI1_HSYNC__GPIO3_15, + + /* power key */ + MX51_PAD_PWRKEY, + + /* spi */ + MX51_PAD_CSPI1_MOSI__ECSPI1_MOSI, + MX51_PAD_CSPI1_MISO__ECSPI1_MISO, + MX51_PAD_CSPI1_SS0__GPIO4_24, + MX51_PAD_CSPI1_SS1__GPIO4_25, + MX51_PAD_CSPI1_RDY__ECSPI1_RDY, + MX51_PAD_CSPI1_SCLK__ECSPI1_SCLK, + + /* reset */ + MX51_PAD_DI1_PIN13__GPIO3_2, + MX51_PAD_GPIO1_4__GPIO1_4, }; /* Serial ports */ @@ -75,6 +148,8 @@ static int initialize_otg_port(struct platform_device *pdev) void __iomem *usb_base; void __iomem *usbother_base; usb_base = ioremap(MX51_OTG_BASE_ADDR, SZ_4K); + if (!usb_base) + return -ENOMEM; usbother_base = (void __iomem *)(usb_base + MX5_USBOTHER_REGS_OFFSET); /* Set the PHY clock to 19.2MHz */ @@ -92,12 +167,182 @@ static struct mxc_usbh_platform_data dr_utmi_config = { .flags = MXC_EHCI_INTERNAL_PHY, }; +/* PCBID2 PCBID1 PCBID0 STATE + 1 1 1 ER1:rev1.1 + 1 1 0 ER2:rev1.2 + 1 0 1 ER3:rev1.3 + 1 0 0 ER4:rev1.4 +*/ +static void __init mx51_efikamx_board_id(void) +{ + int id; + + /* things are taking time to settle */ + msleep(150); + + gpio_request(EFIKAMX_PCBID0, "pcbid0"); + gpio_direction_input(EFIKAMX_PCBID0); + gpio_request(EFIKAMX_PCBID1, "pcbid1"); + gpio_direction_input(EFIKAMX_PCBID1); + gpio_request(EFIKAMX_PCBID2, "pcbid2"); + gpio_direction_input(EFIKAMX_PCBID2); + + id = gpio_get_value(EFIKAMX_PCBID0); + id |= gpio_get_value(EFIKAMX_PCBID1) << 1; + id |= gpio_get_value(EFIKAMX_PCBID2) << 2; + + switch (id) { + case 7: + system_rev = 0x11; + break; + case 6: + system_rev = 0x12; + break; + case 5: + system_rev = 0x13; + break; + case 4: + system_rev = 0x14; + break; + default: + system_rev = 0x10; + break; + } + + if ((system_rev == 0x10) + || (system_rev == 0x12) + || (system_rev == 0x14)) { + printk(KERN_WARNING + "EfikaMX: Unsupported board revision 1.%u!\n", + system_rev & 0xf); + } +} + +static struct gpio_led mx51_efikamx_leds[] = { + { + .name = "efikamx:green", + .default_trigger = "default-on", + .gpio = EFIKAMX_GREEN_LED, + }, + { + .name = "efikamx:red", + .default_trigger = "ide-disk", + .gpio = EFIKAMX_RED_LED, + }, + { + .name = "efikamx:blue", + .default_trigger = "mmc0", + .gpio = EFIKAMX_BLUE_LED, + }, +}; + +static struct gpio_led_platform_data mx51_efikamx_leds_data = { + .leds = mx51_efikamx_leds, + .num_leds = ARRAY_SIZE(mx51_efikamx_leds), +}; + +static struct platform_device mx51_efikamx_leds_device = { + .name = "leds-gpio", + .id = -1, + .dev = { + .platform_data = &mx51_efikamx_leds_data, + }, +}; + +static struct gpio_keys_button mx51_efikamx_powerkey[] = { + { + .code = KEY_POWER, + .gpio = EFIKAMX_POWER_KEY, + .type = EV_PWR, + .desc = "Power Button (CM)", + .wakeup = 1, + .debounce_interval = 10, /* ms */ + }, +}; + +static const struct gpio_keys_platform_data mx51_efikamx_powerkey_data __initconst = { + .buttons = mx51_efikamx_powerkey, + .nbuttons = ARRAY_SIZE(mx51_efikamx_powerkey), +}; + +static struct mtd_partition mx51_efikamx_spi_nor_partitions[] = { + { + .name = "u-boot", + .offset = 0, + .size = SZ_256K, + }, + { + .name = "config", + .offset = MTDPART_OFS_APPEND, + .size = SZ_64K, + }, +}; + +static struct flash_platform_data mx51_efikamx_spi_flash_data = { + .name = "spi_flash", + .parts = mx51_efikamx_spi_nor_partitions, + .nr_parts = ARRAY_SIZE(mx51_efikamx_spi_nor_partitions), + .type = "sst25vf032b", +}; + +static struct spi_board_info mx51_efikamx_spi_board_info[] __initdata = { + { + .modalias = "m25p80", + .max_speed_hz = 25000000, + .bus_num = 0, + .chip_select = 1, + .platform_data = &mx51_efikamx_spi_flash_data, + .irq = -1, + }, +}; + +static int mx51_efikamx_spi_cs[] = { + EFIKAMX_SPI_CS0, + EFIKAMX_SPI_CS1, +}; + +static const struct spi_imx_master mx51_efikamx_spi_pdata __initconst = { + .chipselect = mx51_efikamx_spi_cs, + .num_chipselect = ARRAY_SIZE(mx51_efikamx_spi_cs), +}; + +void mx51_efikamx_reset(void) +{ + if (system_rev == 0x11) + gpio_direction_output(EFIKAMX_RESET1_1, 0); + else + gpio_direction_output(EFIKAMX_RESET, 0); +} + static void __init mxc_board_init(void) { mxc_iomux_v3_setup_multiple_pads(mx51efikamx_pads, ARRAY_SIZE(mx51efikamx_pads)); + mx51_efikamx_board_id(); mxc_register_device(&mxc_usbdr_host_device, &dr_utmi_config); mxc_init_imx_uart(); + imx51_add_sdhci_esdhc_imx(0, NULL); + + /* on < 1.2 boards both SD controllers are used */ + if (system_rev < 0x12) { + imx51_add_sdhci_esdhc_imx(1, NULL); + mx51_efikamx_leds[2].default_trigger = "mmc1"; + } + + platform_device_register(&mx51_efikamx_leds_device); + imx51_add_gpio_keys(&mx51_efikamx_powerkey_data); + + spi_register_board_info(mx51_efikamx_spi_board_info, + ARRAY_SIZE(mx51_efikamx_spi_board_info)); + imx51_add_ecspi(0, &mx51_efikamx_spi_pdata); + + if (system_rev == 0x11) { + gpio_request(EFIKAMX_RESET1_1, "reset"); + gpio_direction_output(EFIKAMX_RESET1_1, 1); + } else { + gpio_request(EFIKAMX_RESET, "reset"); + gpio_direction_output(EFIKAMX_RESET, 1); + } } static void __init mx51_efikamx_timer_init(void) |