Enable early debug UART to debug problems when an ICE or other debug mechanism is not available.
Signed-off-by: Wenyou Yang wenyou.yang@atmel.com ---
board/atmel/sama5d4ek/sama5d4ek.c | 15 ++++++++++++++- configs/sama5d4ek_mmc_defconfig | 6 ++++++ configs/sama5d4ek_nandflash_defconfig | 6 ++++++ configs/sama5d4ek_spiflash_defconfig | 6 ++++++ include/configs/sama5d4ek.h | 2 ++ 5 files changed, 34 insertions(+), 1 deletion(-)
diff --git a/board/atmel/sama5d4ek/sama5d4ek.c b/board/atmel/sama5d4ek/sama5d4ek.c index db24072..5b45dcc 100644 --- a/board/atmel/sama5d4ek/sama5d4ek.c +++ b/board/atmel/sama5d4ek/sama5d4ek.c @@ -16,6 +16,7 @@ #include <asm/arch/sama5d4.h> #include <atmel_hlcdc.h> #include <lcd.h> +#include <debug_uart.h> #include <net.h> #include <netdev.h> #include <nand.h> @@ -182,12 +183,24 @@ static void sama5d4ek_serial3_hw_init(void) at91_periph_clk_enable(ATMEL_ID_USART3); }
-int board_early_init_f(void) +#ifdef CONFIG_DEBUG_UART_BOARD_INIT +void board_debug_uart_init(void) { sama5d4ek_serial3_hw_init(); +} +#endif
+#ifdef CONFIG_BOARD_EARLY_INIT_F +int board_early_init_f(void) +{ +#ifdef CONFIG_DEBUG_UART + debug_uart_init(); +#else + sama5d4ek_serial3_hw_init(); +#endif return 0; } +#endif
int board_init(void) { diff --git a/configs/sama5d4ek_mmc_defconfig b/configs/sama5d4ek_mmc_defconfig index 6396c09..629c254 100644 --- a/configs/sama5d4ek_mmc_defconfig +++ b/configs/sama5d4ek_mmc_defconfig @@ -46,6 +46,12 @@ CONFIG_SPI_FLASH_ATMEL=y CONFIG_PINCTRL=y CONFIG_PINCTRL_AT91=y CONFIG_DM_SERIAL=y +CONFIG_DEBUG_UART=y +CONFIG_DEBUG_UART_ATMEL=y +CONFIG_DEBUG_UART_BASE=0xfc00c000 +CONFIG_DEBUG_UART_CLOCK=0 +CONFIG_DEBUG_UART_BOARD_INIT=y +CONFIG_DEBUG_UART_ANNOUNCE=y CONFIG_ATMEL_USART=y CONFIG_DM_SPI=y CONFIG_ATMEL_SPI=y diff --git a/configs/sama5d4ek_nandflash_defconfig b/configs/sama5d4ek_nandflash_defconfig index 83b54dc..9b5e756 100644 --- a/configs/sama5d4ek_nandflash_defconfig +++ b/configs/sama5d4ek_nandflash_defconfig @@ -44,6 +44,12 @@ CONFIG_SPI_FLASH_ATMEL=y CONFIG_PINCTRL=y CONFIG_PINCTRL_AT91=y CONFIG_DM_SERIAL=y +CONFIG_DEBUG_UART=y +CONFIG_DEBUG_UART_ATMEL=y +CONFIG_DEBUG_UART_BASE=0xfc00c000 +CONFIG_DEBUG_UART_CLOCK=0 +CONFIG_DEBUG_UART_BOARD_INIT=y +CONFIG_DEBUG_UART_ANNOUNCE=y CONFIG_ATMEL_USART=y CONFIG_DM_SPI=y CONFIG_ATMEL_SPI=y diff --git a/configs/sama5d4ek_spiflash_defconfig b/configs/sama5d4ek_spiflash_defconfig index b2906c7..8b3a3ea 100644 --- a/configs/sama5d4ek_spiflash_defconfig +++ b/configs/sama5d4ek_spiflash_defconfig @@ -45,6 +45,12 @@ CONFIG_SPI_FLASH_ATMEL=y CONFIG_PINCTRL=y CONFIG_PINCTRL_AT91=y CONFIG_DM_SERIAL=y +CONFIG_DEBUG_UART=y +CONFIG_DEBUG_UART_ATMEL=y +CONFIG_DEBUG_UART_BASE=0xfc00c000 +CONFIG_DEBUG_UART_CLOCK=0 +CONFIG_DEBUG_UART_BOARD_INIT=y +CONFIG_DEBUG_UART_ANNOUNCE=y CONFIG_ATMEL_USART=y CONFIG_DM_SPI=y CONFIG_ATMEL_SPI=y diff --git a/include/configs/sama5d4ek.h b/include/configs/sama5d4ek.h index 8ec17cc..3025373 100644 --- a/include/configs/sama5d4ek.h +++ b/include/configs/sama5d4ek.h @@ -15,6 +15,8 @@
#include "at91-sama5_common.h"
+#define CONFIG_BOARD_EARLY_INIT_F + /* SDRAM */ #define CONFIG_NR_DRAM_BANKS 1 #define CONFIG_SYS_SDRAM_BASE ATMEL_BASE_DDRCS