omap3: pandora: add NAND and wifi support (79ccf549) · Commits · 戴 / test

arch/arm/mach-omap2/board-omap3pandora.c

+120 −0

Original line number	Diff line number	Diff line
		@@ -25,6 +25,9 @@
		#include <linux/spi/ads7846.h>
		#include <linux/regulator/machine.h>
		#include <linux/i2c/twl.h>
		#include <linux/spi/wl12xx.h>
		#include <linux/mtd/partitions.h>
		#include <linux/mtd/nand.h>
		#include <linux/leds.h>
		#include <linux/input.h>
		#include <linux/input/matrix_keypad.h>
		@@ -41,13 +44,50 @@
		#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",
		@@ -246,12 +286,33 @@ 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 = {
		@@ -530,10 +591,67 @@ 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 = {
		@@ -566,6 +684,7 @@ 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();
		@@ -574,6 +693,7 @@ 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);

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