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 ---
Changes in v2: None
board/atmel/sama5d3_xplained/sama5d3_xplained.c | 16 +++++++++++++++- configs/sama5d3_xplained_mmc_defconfig | 6 ++++++ configs/sama5d3_xplained_nandflash_defconfig | 6 ++++++ 3 files changed, 27 insertions(+), 1 deletion(-)
diff --git a/board/atmel/sama5d3_xplained/sama5d3_xplained.c b/board/atmel/sama5d3_xplained/sama5d3_xplained.c index c4d67a7748..692fec66a7 100644 --- a/board/atmel/sama5d3_xplained/sama5d3_xplained.c +++ b/board/atmel/sama5d3_xplained/sama5d3_xplained.c @@ -12,6 +12,7 @@ #include <asm/arch/at91_rstc.h> #include <asm/arch/gpio.h> #include <asm/arch/clk.h> +#include <debug_uart.h> #include <net.h> #include <netdev.h> #include <spl.h> @@ -67,12 +68,25 @@ static void sama5d3_xplained_mci0_hw_init(void) } #endif
-int board_early_init_f(void) +#ifdef CONFIG_DEBUG_UART_BOARD_INIT +void board_debug_uart_init(void) { at91_seriald_hw_init(); +} +#endif
+#ifdef CONFIG_BOARD_EARLY_INIT_F +int board_early_init_f(void) +{ +#ifdef CONFIG_DEBUG_UART + debug_uart_init(); +#else + sama5d4_xplained_serial3_hw_init(); + at91_seriald_hw_init(); +#endif return 0; } +#endif
int board_init(void) { diff --git a/configs/sama5d3_xplained_mmc_defconfig b/configs/sama5d3_xplained_mmc_defconfig index 8940f1633b..a9890cc3d3 100644 --- a/configs/sama5d3_xplained_mmc_defconfig +++ b/configs/sama5d3_xplained_mmc_defconfig @@ -46,6 +46,12 @@ CONFIG_GENERIC_ATMEL_MCI=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=0xffffee00 +CONFIG_DEBUG_UART_CLOCK=0 +CONFIG_DEBUG_UART_BOARD_INIT=y +CONFIG_DEBUG_UART_ANNOUNCE=y CONFIG_ATMEL_USART=y CONFIG_USB=y CONFIG_DM_USB=y diff --git a/configs/sama5d3_xplained_nandflash_defconfig b/configs/sama5d3_xplained_nandflash_defconfig index 6020513e17..05798d666c 100644 --- a/configs/sama5d3_xplained_nandflash_defconfig +++ b/configs/sama5d3_xplained_nandflash_defconfig @@ -44,6 +44,12 @@ CONFIG_GENERIC_ATMEL_MCI=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=0xffffee00 +CONFIG_DEBUG_UART_CLOCK=0 +CONFIG_DEBUG_UART_BOARD_INIT=y +CONFIG_DEBUG_UART_ANNOUNCE=y CONFIG_ATMEL_USART=y CONFIG_USB=y CONFIG_DM_USB=y