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 6e623bda3ee7..b7946f8e8d40 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)