Commit 79ccf549 authored by Grazvydas Ignotas's avatar Grazvydas Ignotas Committed by Tony Lindgren
Browse files

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: default avatarGrazvydas Ignotas <notasas@gmail.com>
Signed-off-by: default avatarTony Lindgren <tony@atomide.com>
parent ad74db60
......@@ -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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