diff options
| author | Jagan Teki <jagan@amarulasolutions.com> | 2020-07-21 18:06:04 +0300 |
|---|---|---|
| committer | Kever Yang <kever.yang@rock-chips.com> | 2020-07-22 15:55:13 +0300 |
| commit | 6d06ea6c948e583aff1612440dbfd4e0b1a7b984 (patch) | |
| tree | 041f13680224363974833abb8aa8925ebf1c5206 /board/firefly | |
| parent | e230c579a3f6a325fa1624ed9a3df445096674bb (diff) | |
| download | u-boot-6d06ea6c948e583aff1612440dbfd4e0b1a7b984.tar.xz | |
rockchip: roc-rk3399-pc: Set LED only during POR and pwr_key=y
ROC-RK3399-PC has specific set of configurations for
on-board led setup.
Due to easiness for user to know the state of the board
roc-rk339-pc board code will setup the low power led
on/off, and waiting for user to press power key and then
glow full power led.
All this needs to happen only during power-on-reset not
for soft reset or WDT.
Also, it is not a proper usage to ask the user to press
the Power key if the board connected remotely, so add
the environment variable 'pwr_key' to check as well.
So, user need to press Power key only
- during POR
- pwr_key=y
Tested-by: Suniel Mahesh <sunil@amarulasolutions.com>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Diffstat (limited to 'board/firefly')
| -rw-r--r-- | board/firefly/roc-pc-rk3399/roc-pc-rk3399.c | 38 |
1 files changed, 36 insertions, 2 deletions
diff --git a/board/firefly/roc-pc-rk3399/roc-pc-rk3399.c b/board/firefly/roc-pc-rk3399/roc-pc-rk3399.c index 2b447df8aa..93e7d776fb 100644 --- a/board/firefly/roc-pc-rk3399/roc-pc-rk3399.c +++ b/board/firefly/roc-pc-rk3399/roc-pc-rk3399.c @@ -5,11 +5,15 @@ #include <common.h> #include <dm.h> +#include <env.h> #include <log.h> -#include <power/regulator.h> #include <spl_gpio.h> #include <asm/io.h> +#include <power/regulator.h> + +#include <asm/arch-rockchip/cru.h> #include <asm/arch-rockchip/gpio.h> +#include <asm/arch-rockchip/grf_rk3399.h> #ifndef CONFIG_SPL_BUILD int board_early_init_f(void) @@ -32,13 +36,43 @@ out: #else +#define PMUGRF_BASE 0xff320000 #define GPIO0_BASE 0xff720000 +/** + * LED setup for roc-rk3399-pc + * + * 1. Set the low power leds (only during POR, pwr_key env is 'y') + * glow yellow LED, termed as low power + * poll for on board power key press + * once powe key pressed, turn off yellow + * 2. Turn on red LED, indicating full power mode + */ void led_setup(void) { struct rockchip_gpio_regs * const gpio0 = (void *)GPIO0_BASE; + struct rk3399_pmugrf_regs * const pmugrf = (void *)PMUGRF_BASE; + bool press_pwr_key = false; + + if (IS_ENABLED(CONFIG_SPL_ENV_SUPPORT)) { + env_init(); + env_load(); + if (env_get_yesno("pwr_key") == 1) + press_pwr_key = true; + } + + if (press_pwr_key && !strcmp(get_reset_cause(), "POR")) { + spl_gpio_output(gpio0, GPIO(BANK_A, 2), 1); + + spl_gpio_set_pull(&pmugrf->gpio0_p, GPIO(BANK_A, 5), + GPIO_PULL_NORMAL); + while (readl(&gpio0->ext_port) & 0x20) + ; + + spl_gpio_output(gpio0, GPIO(BANK_A, 2), 0); + } - /* Turn on red LED, indicating full power mode */ spl_gpio_output(gpio0, GPIO(BANK_B, 5), 1); } + #endif |