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ODROID-COMMON: Modified to uSD reset for hw_rev0.4

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Change-Id: Ib723d0cbfacce651f6df2419d15fa231c67a58d6
Signed-off-by: femto <ckkim@hardkernel.com>
This commit is contained in:
femto
2019-12-09 18:14:03 +09:00
committed by Chris KIM
parent 16fd93ca00
commit 1c88682f8f
1 changed files with 46 additions and 2 deletions
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48
drivers/amlogic/reboot/reboot.c
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@@ -41,9 +41,12 @@
#if defined(CONFIG_ARCH_MESON64_ODROID_COMMON)
#include <linux/gpio.h>
#include <linux/of_gpio.h>
#include <linux/platform_data/board_odroid.h>
int sd_volsw_gpio;
int sd_power_gpio;
int sd_vddio_gpio;
#define CHECK_RET(ret) { \
if (ret) \
pr_err("[%s] gpio op failed(%d) at line %d\n",\
@@ -130,7 +133,7 @@ void meson_common_restart(char mode, const char *cmd)
}
#if defined(CONFIG_ARCH_MESON64_ODROID_COMMON)
void odroid_card_reset(void)
void odroidn2_card_reset(void)
{
int ret = 0;
@@ -157,11 +160,48 @@ void odroid_card_reset(void)
gpio_free(sd_volsw_gpio);
gpio_free(sd_power_gpio);
}
void odroidc4_card_reset(void)
{
int ret = 0;
if ((sd_vddio_gpio == 0) && (sd_power_gpio == 0) &&
(sd_power_gpio == 0))
return;
gpio_free(sd_volsw_gpio);
gpio_free(sd_vddio_gpio);
gpio_free(sd_power_gpio);
ret = gpio_request_one(sd_volsw_gpio,
GPIOF_OUT_INIT_LOW, "REBOOT");
CHECK_RET(ret);
ret = gpio_request_one(sd_vddio_gpio,
GPIOF_OUT_INIT_LOW, "REBOOT");
CHECK_RET(ret);
ret = gpio_request_one(sd_power_gpio,
GPIOF_OUT_INIT_LOW, "REBOOT");
CHECK_RET(ret);
mdelay(100);
ret = gpio_direction_input(sd_vddio_gpio);
CHECK_RET(ret);
ret = gpio_direction_input(sd_power_gpio);
CHECK_RET(ret);
ret = gpio_direction_input(sd_volsw_gpio);
CHECK_RET(ret);
mdelay(5);
gpio_free(sd_vddio_gpio);
gpio_free(sd_power_gpio);
gpio_free(sd_volsw_gpio);
}
#endif // CONFIG_ARCH_MESON64_ODROID_COMMON
static void do_aml_restart(enum reboot_mode reboot_mode, const char *cmd)
{
#if defined(CONFIG_ARCH_MESON64_ODROID_COMMON)
odroid_card_reset();
if (!board_is_odroidn2())
odroidc4_card_reset();
else
odroidn2_card_reset();
#endif
meson_common_restart(reboot_mode, cmd);
}
@@ -210,6 +250,10 @@ static int aml_restart_probe(struct platform_device *pdev)
sd_volsw_gpio = of_get_named_gpio(of_node, "sd_volsw_gpio", 0);
sd_power_gpio = of_get_named_gpio(of_node, "sd_power_gpio", 0);
if (!board_is_odroidn2()) {
sd_vddio_gpio = 0;
sd_vddio_gpio = of_get_named_gpio(of_node, "sd_vddio_gpio", 0);
}
#endif
ret = register_die_notifier(&panic_notifier);
return ret;