mirror of https://gitee.com/openkylin/linux.git
omap3: pandora: add NAND and wifi support
Add platform data for NAND and wifi, also setup all GPIOs needed to use the wifi chip. Signed-off-by: Grazvydas Ignotas <notasas@gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Grazvydas Ignotas
Tony Lindgren
parent
ad74db6041
commit
79ccf549b3
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@ -25,6 +25,9 @@
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#include <linux/spi/ads7846.h>
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#include <linux/regulator/machine.h>
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#include <linux/i2c/twl.h>
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#include <linux/spi/wl12xx.h>
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#include <linux/mtd/partitions.h>
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#include <linux/mtd/nand.h>
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#include <linux/leds.h>
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#include <linux/input.h>
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#include <linux/input/matrix_keypad.h>
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@ -41,13 +44,50 @@
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#include <plat/mcspi.h>
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#include <plat/usb.h>
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#include <plat/display.h>
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#include <plat/nand.h>
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#include "mux.h"
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#include "sdram-micron-mt46h32m32lf-6.h"
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#include "hsmmc.h"
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#define PANDORA_WIFI_IRQ_GPIO 21
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#define PANDORA_WIFI_NRESET_GPIO 23
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#define OMAP3_PANDORA_TS_GPIO 94
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#define NAND_BLOCK_SIZE SZ_128K
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static struct mtd_partition omap3pandora_nand_partitions[] = {
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{
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.name = "xloader",
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.offset = 0,
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.size = 4 * NAND_BLOCK_SIZE,
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.mask_flags = MTD_WRITEABLE
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}, {
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.name = "uboot",
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.offset = MTDPART_OFS_APPEND,
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.size = 15 * NAND_BLOCK_SIZE,
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}, {
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.name = "uboot-env",
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.offset = MTDPART_OFS_APPEND,
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.size = 1 * NAND_BLOCK_SIZE,
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}, {
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.name = "boot",
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.offset = MTDPART_OFS_APPEND,
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.size = 80 * NAND_BLOCK_SIZE,
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}, {
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.name = "rootfs",
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.offset = MTDPART_OFS_APPEND,
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.size = MTDPART_SIZ_FULL,
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},
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};
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static struct omap_nand_platform_data pandora_nand_data = {
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.cs = 0,
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.devsize = 1, /* '0' for 8-bit, '1' for 16-bit device */
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.parts = omap3pandora_nand_partitions,
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.nr_parts = ARRAY_SIZE(omap3pandora_nand_partitions),
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};
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static struct gpio_led pandora_gpio_leds[] = {
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{
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.name = "pandora::sd1",
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@ -246,12 +286,33 @@ static struct omap2_hsmmc_info omap3pandora_mmc[] = {
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static int omap3pandora_twl_gpio_setup(struct device *dev,
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unsigned gpio, unsigned ngpio)
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{
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int ret, gpio_32khz;
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/* gpio + {0,1} is "mmc{0,1}_cd" (input/IRQ) */
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omap3pandora_mmc[0].gpio_cd = gpio + 0;
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omap3pandora_mmc[1].gpio_cd = gpio + 1;
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omap2_hsmmc_init(omap3pandora_mmc);
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/* gpio + 13 drives 32kHz buffer for wifi module */
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gpio_32khz = gpio + 13;
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ret = gpio_request(gpio_32khz, "wifi 32kHz");
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if (ret < 0) {
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pr_err("Cannot get GPIO line %d, ret=%d\n", gpio_32khz, ret);
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goto fail;
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}
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ret = gpio_direction_output(gpio_32khz, 1);
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if (ret < 0) {
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pr_err("Cannot set GPIO line %d, ret=%d\n", gpio_32khz, ret);
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goto fail_direction;
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}
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return 0;
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fail_direction:
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gpio_free(gpio_32khz);
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fail:
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return -ENODEV;
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}
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static struct twl4030_gpio_platform_data omap3pandora_gpio_data = {
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@ -530,10 +591,67 @@ static void __init omap3pandora_init_irq(void)
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omap_gpio_init();
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}
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static void pandora_wl1251_set_power(bool enable)
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{
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/*
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* Keep power always on until wl1251_sdio driver learns to re-init
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* the chip after powering it down and back up.
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*/
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}
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static struct wl12xx_platform_data pandora_wl1251_pdata = {
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.set_power = pandora_wl1251_set_power,
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.use_eeprom = true,
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};
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static struct platform_device pandora_wl1251_data = {
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.name = "wl1251_data",
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.id = -1,
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.dev = {
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.platform_data = &pandora_wl1251_pdata,
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},
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};
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static void pandora_wl1251_init(void)
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{
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int ret;
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ret = gpio_request(PANDORA_WIFI_IRQ_GPIO, "wl1251 irq");
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if (ret < 0)
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goto fail;
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ret = gpio_direction_input(PANDORA_WIFI_IRQ_GPIO);
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if (ret < 0)
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goto fail_irq;
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pandora_wl1251_pdata.irq = gpio_to_irq(PANDORA_WIFI_IRQ_GPIO);
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if (pandora_wl1251_pdata.irq < 0)
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goto fail_irq;
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ret = gpio_request(PANDORA_WIFI_NRESET_GPIO, "wl1251 nreset");
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if (ret < 0)
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goto fail_irq;
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/* start powered so that it probes with MMC subsystem */
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ret = gpio_direction_output(PANDORA_WIFI_NRESET_GPIO, 1);
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if (ret < 0)
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goto fail_nreset;
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return;
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fail_nreset:
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gpio_free(PANDORA_WIFI_NRESET_GPIO);
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fail_irq:
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gpio_free(PANDORA_WIFI_IRQ_GPIO);
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fail:
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printk(KERN_ERR "wl1251 board initialisation failed\n");
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}
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static struct platform_device *omap3pandora_devices[] __initdata = {
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&pandora_leds_gpio,
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&pandora_keys_gpio,
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&pandora_dss_device,
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&pandora_wl1251_data,
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};
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static const struct ehci_hcd_omap_platform_data ehci_pdata __initconst = {
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@ -566,6 +684,7 @@ static void __init omap3pandora_init(void)
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{
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omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
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omap3pandora_i2c_init();
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pandora_wl1251_init();
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platform_add_devices(omap3pandora_devices,
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ARRAY_SIZE(omap3pandora_devices));
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omap_serial_init();
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@ -574,6 +693,7 @@ static void __init omap3pandora_init(void)
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omap3pandora_ads7846_init();
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usb_ehci_init(&ehci_pdata);
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usb_musb_init(&musb_board_data);
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gpmc_nand_init(&pandora_nand_data);
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/* Ensure SDRC pins are mux'd for self-refresh */
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omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
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