diff options
Diffstat (limited to 'arch/arm/mach-rockchip/rk3399/rk3399.c')
| -rw-r--r-- | arch/arm/mach-rockchip/rk3399/rk3399.c | 59 |
1 files changed, 57 insertions, 2 deletions
diff --git a/arch/arm/mach-rockchip/rk3399/rk3399.c b/arch/arm/mach-rockchip/rk3399/rk3399.c index d8467d7333..a7ccd4f3ed 100644 --- a/arch/arm/mach-rockchip/rk3399/rk3399.c +++ b/arch/arm/mach-rockchip/rk3399/rk3399.c @@ -4,13 +4,17 @@ */ #include <common.h> +#include <spl_gpio.h> #include <asm/armv8/mmu.h> #include <asm/io.h> -#include <asm/arch/hardware.h> +#include <asm/arch-rockchip/gpio.h> +#include <asm/arch-rockchip/grf_rk3399.h> +#include <asm/arch-rockchip/hardware.h> DECLARE_GLOBAL_DATA_PTR; #define GRF_EMMCCORE_CON11 0xff77f02c +#define GRF_BASE 0xff770000 static struct mm_region rk3399_mem_map[] = { { @@ -48,9 +52,60 @@ int dram_init_banksize(void) int arch_cpu_init(void) { /* We do some SoC one time setting here. */ + struct rk3399_grf_regs * const grf = (void *)GRF_BASE; /* Emmc clock generator: disable the clock multipilier */ - rk_clrreg(GRF_EMMCCORE_CON11, 0x0ff); + rk_clrreg(&grf->emmccore_con[11], 0x0ff); return 0; } + +#ifdef CONFIG_DEBUG_UART_BOARD_INIT +void board_debug_uart_init(void) +{ +#define GRF_BASE 0xff770000 +#define GPIO0_BASE 0xff720000 +#define PMUGRF_BASE 0xff320000 + struct rk3399_grf_regs * const grf = (void *)GRF_BASE; +#ifdef CONFIG_TARGET_CHROMEBOOK_BOB + struct rk3399_pmugrf_regs * const pmugrf = (void *)PMUGRF_BASE; + struct rockchip_gpio_regs * const gpio = (void *)GPIO0_BASE; +#endif + +#if defined(CONFIG_DEBUG_UART_BASE) && (CONFIG_DEBUG_UART_BASE == 0xff180000) + /* Enable early UART0 on the RK3399 */ + rk_clrsetreg(&grf->gpio2c_iomux, + GRF_GPIO2C0_SEL_MASK, + GRF_UART0BT_SIN << GRF_GPIO2C0_SEL_SHIFT); + rk_clrsetreg(&grf->gpio2c_iomux, + GRF_GPIO2C1_SEL_MASK, + GRF_UART0BT_SOUT << GRF_GPIO2C1_SEL_SHIFT); +#else +# ifdef CONFIG_TARGET_CHROMEBOOK_BOB + rk_setreg(&grf->io_vsel, 1 << 0); + + /* + * Let's enable these power rails here, we are already running the SPI + * Flash based code. + */ + spl_gpio_output(gpio, GPIO(BANK_B, 2), 1); /* PP1500_EN */ + spl_gpio_set_pull(&pmugrf->gpio0_p, GPIO(BANK_B, 2), GPIO_PULL_NORMAL); + + spl_gpio_output(gpio, GPIO(BANK_B, 4), 1); /* PP3000_EN */ + spl_gpio_set_pull(&pmugrf->gpio0_p, GPIO(BANK_B, 4), GPIO_PULL_NORMAL); +#endif /* CONFIG_TARGET_CHROMEBOOK_BOB */ + + /* Enable early UART2 channel C on the RK3399 */ + rk_clrsetreg(&grf->gpio4c_iomux, + GRF_GPIO4C3_SEL_MASK, + GRF_UART2DGBC_SIN << GRF_GPIO4C3_SEL_SHIFT); + rk_clrsetreg(&grf->gpio4c_iomux, + GRF_GPIO4C4_SEL_MASK, + GRF_UART2DBGC_SOUT << GRF_GPIO4C4_SEL_SHIFT); + /* Set channel C as UART2 input */ + rk_clrsetreg(&grf->soc_con7, + GRF_UART_DBG_SEL_MASK, + GRF_UART_DBG_SEL_C << GRF_UART_DBG_SEL_SHIFT); +#endif +} +#endif |