Other Parts Discussed in Thread: WL1837
Hi,
After reviewing AM335x platform integration guide, the wl1837 WiFi chip still cannot detect by am335x. Is there anything wrong in my configuration?
processors.wiki.ti.com/.../WL18xx_AMxxx_Platform_Integration_Guide
BSP: linux-3.2.0-psp04.06.00.11
#ifdef CONFIG_WL12XX_PLATFORM_DATA
omap_mux_init_gpio(wl1837_WLAN_ENABLE_GPIO, OMAP_PIN_INPUT_PULLUP); /* power on WiFi */
/* WL12xx WLAN Init */
if (wl12xx_set_platform_data(&wl1837_wlan_data))
pr_err("error setting wl18xx data\n");
platform_device_register(&wl1837_wlan_regulator);
#endif
struct wl12xx_platform_data wl1837_wlan_data __initdata = {
.irq = OMAP_GPIO_IRQ(wl1837_WLAN_IRQ_GPIO),
.board_ref_clock = WL12XX_REFCLOCK_26, /* 26 MHz */
};
static struct platform_device wl1837_wlan_regulator = {
.name = "reg-fixed-voltage",
.id = 1,
.dev = {
.platform_data = &wl1837_vwlan,
},
};
static struct fixed_voltage_config wl1837_vwlan = {
.supply_name = "vwl1837",
.microvolts = 1800000, /* 1.80V */
.gpio = wl1837_WLAN_ENABLE_GPIO,
.startup_delay = 70000, /* 70ms */
.enable_high = 1,
.enabled_at_boot = 0,
.init_data = &wl1837_vmmc2,
};
static struct regulator_init_data wl1837_vmmc2 = {
.constraints = {
.valid_ops_mask = REGULATOR_CHANGE_STATUS,
},
.num_consumer_supplies = ARRAY_SIZE(wl1837_vmmc2_supply),
.consumer_supplies = &wl1837_vmmc2_supply,
};
static struct regulator_consumer_supply wl1837_vmmc2_supply[] = {
REGULATOR_SUPPLY("vmmc", "omap_hsmmc.1"),
};
--PIN MUX--
static struct pinmux_config mmc1_wifi_pin_mux[] = {
{"gpmc_ad0", OMAP_MUX_MODE1 | AM33XX_PIN_INPUT_PULLUP}, /* MMC1_DAT0 */
{"gpmc_ad1", OMAP_MUX_MODE1 | AM33XX_PIN_INPUT_PULLUP}, /* MMC1_DAT1 */
{"gpmc_ad2", OMAP_MUX_MODE1 | AM33XX_PIN_INPUT_PULLUP}, /* MMC1_DAT2 */
{"gpmc_ad3", OMAP_MUX_MODE1 | AM33XX_PIN_INPUT_PULLUP}, /* MMC1_DAT3 */
{"gpmc_csn1", OMAP_MUX_MODE2 | AM33XX_PIN_INPUT_PULLUP}, /* MMC1_CLK */
{"gpmc_csn2", OMAP_MUX_MODE2 | AM33XX_PIN_INPUT_PULLUP}, /* MMC1_CMD */
{"gpmc_wait0.gpio0_30", OMAP_MUX_MODE7 | AM33XX_PIN_OUTPUT}, /* WLAN_EN */
{"xdma_event_intr0.gpio0_19", OMAP_MUX_MODE7 | AM33XX_PIN_INPUT}, /* WLAN_IRQ */
{NULL, 0},
};
-- mmc init --
static struct omap2_hsmmc_info am335x_mmc[] __initdata = {
...
#ifdef CONFIG_WL12XX_PLATFORM_DATA
{
.name = "wl1837",
.mmc = 2,
.caps = MMC_CAP_4_BIT_DATA | MMC_CAP_POWER_OFF_CARD,
.nonremovable = true,
.gpio_cd =-EINVAL,
.gpio_wp = -EINVAL,
.ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34, /* 3V3 */
},
#endif
...
