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omap3evm: add support for the WL12xx WLAN module to the AM/DM3xx Evaluation Module

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Adds platform initialization for working with the WLAN module attached to the evaluation module.
The patch includes MMC2 initialization, SDIO and control pins muxing and platform device registration

Signed-off-by: Eyal Reizer <eyalr@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Eyal Reizer 2011-01-27 09:49:49 +00:00 committed by Tony Lindgren
parent df7ffd317d
commit 741927f753
1 changed files with 78 additions and 0 deletions
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78
arch/arm/mach-omap2/board-omap3evm.c
View file

@ -30,6 +30,8 @@
#include <linux/usb/otg.h>
#include <linux/smsc911x.h>
#include <linux/wl12xx.h>
#include <linux/regulator/fixed.h>
#include <linux/regulator/machine.h>
#include <linux/mmc/host.h>
@ -381,6 +383,16 @@ static struct omap2_hsmmc_info mmc[] = {
.gpio_cd = -EINVAL,
.gpio_wp = 63,
},
#ifdef CONFIG_WL12XX_PLATFORM_DATA
{
.name = "wl1271",
.mmc = 2,
.caps = MMC_CAP_4_BIT_DATA | MMC_CAP_POWER_OFF_CARD,
.gpio_wp = -EINVAL,
.gpio_cd = -EINVAL,
.nonremovable = true,
},
#endif
{} /* Terminator */
};
@ -538,6 +550,50 @@ static struct regulator_init_data omap3_evm_vpll2 = {
.consumer_supplies = &omap3_evm_vpll2_supply,
};
#ifdef CONFIG_WL12XX_PLATFORM_DATA
#define OMAP3EVM_WLAN_PMENA_GPIO (150)
#define OMAP3EVM_WLAN_IRQ_GPIO (149)
static struct regulator_consumer_supply omap3evm_vmmc2_supply = {
.supply = "vmmc",
.dev_name = "mmci-omap-hs.1",
};
/* VMMC2 for driving the WL12xx module */
static struct regulator_init_data omap3evm_vmmc2 = {
.constraints = {
.valid_ops_mask = REGULATOR_CHANGE_STATUS,
},
.num_consumer_supplies = 1,
.consumer_supplies = &omap3evm_vmmc2_supply,
};
static struct fixed_voltage_config omap3evm_vwlan = {
.supply_name = "vwl1271",
.microvolts = 1800000, /* 1.80V */
.gpio = OMAP3EVM_WLAN_PMENA_GPIO,
.startup_delay = 70000, /* 70ms */
.enable_high = 1,
.enabled_at_boot = 0,
.init_data = &omap3evm_vmmc2,
};
static struct platform_device omap3evm_vwlan_device = {
.name = "reg-fixed-voltage",
.id = 1,
.dev = {
.platform_data = &omap3evm_vwlan,
},
};
struct wl12xx_platform_data omap3evm_wlan_data __initdata = {
.irq = OMAP_GPIO_IRQ(OMAP3EVM_WLAN_IRQ_GPIO),
/* ref clock is 38.4 MHz */
.board_ref_clock = 2,
};
#endif
static struct twl4030_platform_data omap3evm_twldata = {
.irq_base = TWL4030_IRQ_BASE,
.irq_end = TWL4030_IRQ_END,
@ -657,6 +713,21 @@ static struct omap_board_mux board_mux[] __initdata = {
OMAP_PIN_OFF_WAKEUPENABLE),
OMAP3_MUX(MCSPI1_CS1, OMAP_MUX_MODE4 | OMAP_PIN_INPUT_PULLUP |
OMAP_PIN_OFF_INPUT_PULLUP | OMAP_PIN_OFF_OUTPUT_LOW),
#ifdef CONFIG_WL12XX_PLATFORM_DATA
/* WLAN IRQ - GPIO 149 */
OMAP3_MUX(UART1_RTS, OMAP_MUX_MODE4 | OMAP_PIN_INPUT_PULLUP),
/* WLAN POWER ENABLE - GPIO 150 */
OMAP3_MUX(UART1_CTS, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT),
/* MMC2 SDIO pin muxes for WL12xx */
OMAP3_MUX(SDMMC2_CLK, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
OMAP3_MUX(SDMMC2_CMD, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
OMAP3_MUX(SDMMC2_DAT0, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
OMAP3_MUX(SDMMC2_DAT1, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
OMAP3_MUX(SDMMC2_DAT2, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
OMAP3_MUX(SDMMC2_DAT3, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
#endif
{ .reg_offset = OMAP_MUX_TERMINATOR },
};
#endif
@ -714,6 +785,13 @@ static void __init omap3_evm_init(void)
ads7846_dev_init();
omap3evm_init_smsc911x();
omap3_evm_display_init();
#ifdef CONFIG_WL12XX_PLATFORM_DATA
/* WL12xx WLAN Init */
if (wl12xx_set_platform_data(&omap3evm_wlan_data))
pr_err("error setting wl12xx data\n");
platform_device_register(&omap3evm_vwlan_device);
#endif
}
MACHINE_START(OMAP3EVM, "OMAP3 EVM")