Add platform data for NAND and wifi, also setup all GPIOs needed to use the wifi chip.
Signed-off-by: Grazvydas Ignotas <[email protected]> --- arch/arm/mach-omap2/board-omap3pandora.c | 121 ++++++++++++++++++++++++++++++ 1 files changed, 121 insertions(+), 0 deletions(-) diff --git a/arch/arm/mach-omap2/board-omap3pandora.c b/arch/arm/mach-omap2/board-omap3pandora.c index 6131d98..690e0a7 100644 --- a/arch/arm/mach-omap2/board-omap3pandora.c +++ b/arch/arm/mach-omap2/board-omap3pandora.c @@ -29,7 +29,10 @@ #include <linux/input.h> #include <linux/input/matrix_keypad.h> #include <linux/gpio_keys.h> +#include <linux/spi/wl12xx.h> #include <linux/mmc/card.h> +#include <linux/mtd/partitions.h> +#include <linux/mtd/nand.h> #include <asm/mach-types.h> #include <asm/mach/arch.h> @@ -42,13 +45,50 @@ #include <plat/mcspi.h> #include <plat/usb.h> #include <plat/display.h> +#include <plat/nand.h> #include "mux.h" #include "sdram-micron-mt46h32m32lf-6.h" #include "hsmmc.h" +#define PANDORA_WIFI_IRQ_GPIO 21 +#define PANDORA_WIFI_NRESET_GPIO 23 #define OMAP3_PANDORA_TS_GPIO 94 +#define NAND_BLOCK_SIZE SZ_128K + +static struct mtd_partition omap3pandora_nand_partitions[] = { + { + .name = "xloader", + .offset = 0, + .size = 4 * NAND_BLOCK_SIZE, + .mask_flags = MTD_WRITEABLE + }, { + .name = "uboot", + .offset = MTDPART_OFS_APPEND, + .size = 15 * NAND_BLOCK_SIZE, + }, { + .name = "uboot-env", + .offset = MTDPART_OFS_APPEND, + .size = 1 * NAND_BLOCK_SIZE, + }, { + .name = "boot", + .offset = MTDPART_OFS_APPEND, + .size = 80 * NAND_BLOCK_SIZE, + }, { + .name = "rootfs", + .offset = MTDPART_OFS_APPEND, + .size = MTDPART_SIZ_FULL, + }, +}; + +static struct omap_nand_platform_data pandora_nand_data = { + .cs = 0, + .devsize = 1, /* '0' for 8-bit, '1' for 16-bit device */ + .parts = omap3pandora_nand_partitions, + .nr_parts = ARRAY_SIZE(omap3pandora_nand_partitions), +}; + static struct gpio_led pandora_gpio_leds[] = { { .name = "pandora::sd1", @@ -254,6 +294,7 @@ static struct omap2_hsmmc_info omap3pandora_mmc[] = { .wires = 4, .gpio_cd = -EINVAL, .gpio_wp = -EINVAL, + .ocr_mask = 0x80, /* MMC_VDD_165_195 */ .init_card = pandora_wl1251_init_card, }, {} /* Terminator */ @@ -262,12 +303,33 @@ static struct omap2_hsmmc_info omap3pandora_mmc[] = { static int omap3pandora_twl_gpio_setup(struct device *dev, unsigned gpio, unsigned ngpio) { + int ret, gpio_32khz; + /* gpio + {0,1} is "mmc{0,1}_cd" (input/IRQ) */ omap3pandora_mmc[0].gpio_cd = gpio + 0; omap3pandora_mmc[1].gpio_cd = gpio + 1; omap2_hsmmc_init(omap3pandora_mmc); + /* gpio + 13 drives 32kHz buffer for wifi module */ + gpio_32khz = gpio + 13; + ret = gpio_request(gpio_32khz, "wifi 32kHz"); + if (ret < 0) { + pr_err("Cannot get GPIO line %d, ret=%d\n", gpio_32khz, ret); + goto fail; + } + + ret = gpio_direction_output(gpio_32khz, 1); + if (ret < 0) { + pr_err("Cannot set GPIO line %d, ret=%d\n", gpio_32khz, ret); + goto fail_direction; + } + return 0; + +fail_direction: + gpio_free(gpio_32khz); +fail: + return -ENODEV; } static struct twl4030_gpio_platform_data omap3pandora_gpio_data = { @@ -546,10 +608,67 @@ static void __init omap3pandora_init_irq(void) omap_gpio_init(); } +static void pandora_wl1251_set_power(bool enable) +{ + /* + * Keep power always on until wl1251_sdio driver learns to re-init + * the chip after powering it down and back up. + */ +} + +static struct wl12xx_platform_data pandora_wl1251_pdata = { + .set_power = pandora_wl1251_set_power, + .use_eeprom = true, +}; + +static struct platform_device pandora_wl1251_data = { + .name = "wl1251_data", + .id = -1, + .dev = { + .platform_data = &pandora_wl1251_pdata, + }, +}; + +static void pandora_wl1251_init(void) +{ + int ret; + + ret = gpio_request(PANDORA_WIFI_IRQ_GPIO, "wl1251 irq"); + if (ret < 0) + goto fail; + + ret = gpio_direction_input(PANDORA_WIFI_IRQ_GPIO); + if (ret < 0) + goto fail_irq; + + pandora_wl1251_pdata.irq = gpio_to_irq(PANDORA_WIFI_IRQ_GPIO); + if (pandora_wl1251_pdata.irq < 0) + goto fail_irq; + + ret = gpio_request(PANDORA_WIFI_NRESET_GPIO, "wl1251 nreset"); + if (ret < 0) + goto fail_irq; + + /* start powered so that it probes with MMC subsystem */ + ret = gpio_direction_output(PANDORA_WIFI_NRESET_GPIO, 1); + if (ret < 0) + goto fail_nreset; + + return; + +fail_nreset: + gpio_free(PANDORA_WIFI_NRESET_GPIO); +fail_irq: + gpio_free(PANDORA_WIFI_IRQ_GPIO); +fail: + printk(KERN_ERR "wl1251 board initialisation failed\n"); +} + static struct platform_device *omap3pandora_devices[] __initdata = { &pandora_leds_gpio, &pandora_keys_gpio, &pandora_dss_device, + &pandora_wl1251_data, }; static const struct ehci_hcd_omap_platform_data ehci_pdata __initconst = { @@ -582,6 +701,7 @@ static void __init omap3pandora_init(void) { omap3_mux_init(board_mux, OMAP_PACKAGE_CBB); omap3pandora_i2c_init(); + pandora_wl1251_init(); platform_add_devices(omap3pandora_devices, ARRAY_SIZE(omap3pandora_devices)); omap_serial_init(); @@ -590,6 +710,7 @@ static void __init omap3pandora_init(void) omap3pandora_ads7846_init(); usb_ehci_init(&ehci_pdata); usb_musb_init(&musb_board_data); + gpmc_nand_init(&pandora_nand_data); /* Ensure SDRC pins are mux'd for self-refresh */ omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT); -- 1.6.3.3 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
