diff options
Diffstat (limited to 'board/firefly/roc-pc-rk3399')
| -rw-r--r-- | board/firefly/roc-pc-rk3399/roc-pc-rk3399.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/board/firefly/roc-pc-rk3399/roc-pc-rk3399.c b/board/firefly/roc-pc-rk3399/roc-pc-rk3399.c index d47dba8b91..de9185a7ce 100644 --- a/board/firefly/roc-pc-rk3399/roc-pc-rk3399.c +++ b/board/firefly/roc-pc-rk3399/roc-pc-rk3399.c @@ -7,6 +7,10 @@ #include <dm.h> #include <asm/arch-rockchip/periph.h> #include <power/regulator.h> +#include <spl_gpio.h> +#include <asm/io.h> +#include <asm/arch-rockchip/gpio.h> +#include <asm/arch-rockchip/grf_rk3399.h> #ifndef CONFIG_SPL_BUILD int board_early_init_f(void) @@ -27,3 +31,31 @@ out: return 0; } #endif + +#if defined(CONFIG_TPL_BUILD) + +#define PMUGRF_BASE 0xff320000 +#define GPIO0_BASE 0xff720000 + +int board_early_init_f(void) +{ + struct rockchip_gpio_regs * const gpio0 = (void *)GPIO0_BASE; + struct rk3399_pmugrf_regs * const pmugrf = (void *)PMUGRF_BASE; + + /** + * 1. Glow yellow LED, termed as low power + * 2. Poll for on board power key press + * 3. Once 2 done, off yellow and glow red LED, termed as full power + * 4. Continue booting... + */ + 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); + spl_gpio_output(gpio0, GPIO(BANK_B, 5), 1); + + return 0; +} +#endif |