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Add wifi reset control (for RK2928)

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This commit is contained in:
gwl
2012-08-15 21:08:54 +08:00
parent b3a15f334a
commit 24424b7461
1 changed files with 9 additions and 8 deletions
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17
arch/arm/mach-rk2928/board-rk2928-sdk-sdmmc.c
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@@ -203,6 +203,7 @@ static void rk29_sdmmc_set_iomux(int device_id, unsigned int bus_width)
#ifdef CONFIG_WIFI_CONTROL_FUNC
#define RK30SDK_WIFI_GPIO_POWER_N RK2928_PIN0_PD6
#define RK29SDK_WIFI_GPIO_RESET_N RK2928_PIN3_PC2
#define PREALLOC_WLAN_SEC_NUM 4
#define PREALLOC_WLAN_BUF_NUM 160
@@ -309,12 +310,12 @@ static int __init rk29sdk_wifi_bt_gpio_control_init(void)
return -1;
}
/*if (gpio_request(RK29SDK_WIFI_GPIO_RESET_N, "wifi reset")) {
if (gpio_request(RK29SDK_WIFI_GPIO_RESET_N, "wifi reset")) {
pr_info("%s: request wifi reset gpio failed\n", __func__);
gpio_free(RK30SDK_WIFI_GPIO_POWER_N);
return -1;
}
/*
if (gpio_request(RK29SDK_BT_GPIO_RESET_N, "bt reset")) {
pr_info("%s: request bt reset gpio failed\n", __func__);
gpio_free(RK29SDK_WIFI_GPIO_RESET_N);
@@ -322,7 +323,7 @@ static int __init rk29sdk_wifi_bt_gpio_control_init(void)
}*/
gpio_direction_output(RK30SDK_WIFI_GPIO_POWER_N, GPIO_LOW);
//gpio_direction_output(RK29SDK_WIFI_GPIO_RESET_N, GPIO_LOW);
gpio_direction_output(RK29SDK_WIFI_GPIO_RESET_N, GPIO_LOW);
//gpio_direction_output(RK29SDK_BT_GPIO_RESET_N, GPIO_LOW);
#if defined(CONFIG_SDMMC1_RK29) && !defined(CONFIG_SDMMC_RK29_OLD)
@@ -351,12 +352,12 @@ static int rk29sdk_wifi_power(int on)
pr_info("%s: %d\n", __func__, on);
if (on){
gpio_set_value(RK30SDK_WIFI_GPIO_POWER_N, GPIO_HIGH);
mdelay(50);
#if defined(CONFIG_SDMMC1_RK29) && !defined(CONFIG_SDMMC_RK29_OLD)
rk29_sdmmc_gpio_open(1, 1); //added by xbw at 2011-10-13
#endif
//gpio_set_value(RK29SDK_WIFI_GPIO_RESET_N, GPIO_HIGH);
gpio_set_value(RK29SDK_WIFI_GPIO_RESET_N, GPIO_HIGH);
mdelay(100);
pr_info("wifi turn on power\n");
}else{
@@ -373,7 +374,7 @@ static int rk29sdk_wifi_power(int on)
// {
// pr_info("wifi shouldn't shut off power, bt is using it!\n");
// }
//gpio_set_value(RK29SDK_WIFI_GPIO_RESET_N, GPIO_LOW);
gpio_set_value(RK29SDK_WIFI_GPIO_RESET_N, GPIO_LOW);
}
@@ -385,8 +386,8 @@ static int rk29sdk_wifi_reset_state;
static int rk29sdk_wifi_reset(int on)
{
pr_info("%s: %d\n", __func__, on);
//gpio_set_value(RK29SDK_WIFI_GPIO_RESET_N, on);
//mdelay(100);
gpio_set_value(RK29SDK_WIFI_GPIO_RESET_N, on);
mdelay(100);
rk29sdk_wifi_reset_state = on;
return 0;
}