diff options
Diffstat (limited to 'board/st/stm32mp1/board.c')
| -rw-r--r-- | board/st/stm32mp1/board.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/board/st/stm32mp1/board.c b/board/st/stm32mp1/board.c index 956768f0447..5f31ea99f59 100644 --- a/board/st/stm32mp1/board.c +++ b/board/st/stm32mp1/board.c @@ -10,6 +10,33 @@ #include <power/pmic.h> #include <power/stpmu1.h> +#ifdef CONFIG_DEBUG_UART_BOARD_INIT +void board_debug_uart_init(void) +{ +#if (CONFIG_DEBUG_UART_BASE == STM32_UART4_BASE) + +#define RCC_MP_APB1ENSETR (STM32_RCC_BASE + 0x0A00) +#define RCC_MP_AHB4ENSETR (STM32_RCC_BASE + 0x0A28) + + /* UART4 clock enable */ + setbits_le32(RCC_MP_APB1ENSETR, BIT(16)); + +#define GPIOG_BASE 0x50008000 + /* GPIOG clock enable */ + writel(BIT(6), RCC_MP_AHB4ENSETR); + /* GPIO configuration for EVAL board + * => Uart4 TX = G11 + */ + writel(0xffbfffff, GPIOG_BASE + 0x00); + writel(0x00006000, GPIOG_BASE + 0x24); +#else + +#error("CONFIG_DEBUG_UART_BASE: not supported value") + +#endif +} +#endif + #ifdef CONFIG_PMIC_STPMU1 int board_ddr_power_init(void) { |