Enable the 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 Reviewed-by: Simon Glass sjg@chromium.org ---
Changes in v3: - Use CONFIG_DEBUG_UART_CLOCK as the input clock for the early debug UART. - Drop [PATCH 4/5] configs: at91sam9x5ek: move SYS_NO_FLASH to defconfig.
Changes in v2: - Rebase on the patch set: [RESEND PATCH v2] ARM: at91: add default config file for sama5d36ek CMP board http://lists.denx.de/pipermail/u-boot/2017-February/280525.html
board/atmel/at91sam9x5ek/at91sam9x5ek.c | 14 +++++++++++++- configs/at91sam9x5ek_dataflash_defconfig | 6 ++++++ configs/at91sam9x5ek_mmc_defconfig | 6 ++++++ configs/at91sam9x5ek_nandflash_defconfig | 6 ++++++ configs/at91sam9x5ek_spiflash_defconfig | 6 ++++++ 5 files changed, 37 insertions(+), 1 deletion(-)
diff --git a/board/atmel/at91sam9x5ek/at91sam9x5ek.c b/board/atmel/at91sam9x5ek/at91sam9x5ek.c index 235b33725d..c661c77f83 100644 --- a/board/atmel/at91sam9x5ek/at91sam9x5ek.c +++ b/board/atmel/at91sam9x5ek/at91sam9x5ek.c @@ -12,6 +12,7 @@ #include <asm/arch/at91_rstc.h> #include <asm/arch/clk.h> #include <asm/arch/gpio.h> +#include <debug_uart.h> #include <lcd.h> #include <atmel_hlcdc.h> #ifdef CONFIG_LCD_INFO @@ -182,11 +183,22 @@ void lcd_show_board_info(void) #endif /* CONFIG_LCD_INFO */ #endif /* CONFIG_LCD */
-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(); +#endif return 0; } +#endif
int board_init(void) { diff --git a/configs/at91sam9x5ek_dataflash_defconfig b/configs/at91sam9x5ek_dataflash_defconfig index 7850b994d5..64707dbdaa 100644 --- a/configs/at91sam9x5ek_dataflash_defconfig +++ b/configs/at91sam9x5ek_dataflash_defconfig @@ -40,6 +40,12 @@ CONFIG_MACB=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=0xfffff200 +CONFIG_DEBUG_UART_CLOCK=132000000 +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/at91sam9x5ek_mmc_defconfig b/configs/at91sam9x5ek_mmc_defconfig index 5990778ada..ddeeeefa1e 100644 --- a/configs/at91sam9x5ek_mmc_defconfig +++ b/configs/at91sam9x5ek_mmc_defconfig @@ -40,6 +40,12 @@ CONFIG_MACB=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=0xfffff200 +CONFIG_DEBUG_UART_CLOCK=132000000 +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/at91sam9x5ek_nandflash_defconfig b/configs/at91sam9x5ek_nandflash_defconfig index 816fe69834..a26b38f330 100644 --- a/configs/at91sam9x5ek_nandflash_defconfig +++ b/configs/at91sam9x5ek_nandflash_defconfig @@ -40,6 +40,12 @@ CONFIG_MACB=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=0xfffff200 +CONFIG_DEBUG_UART_CLOCK=132000000 +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/at91sam9x5ek_spiflash_defconfig b/configs/at91sam9x5ek_spiflash_defconfig index 8574525bc2..75d25d8e61 100644 --- a/configs/at91sam9x5ek_spiflash_defconfig +++ b/configs/at91sam9x5ek_spiflash_defconfig @@ -40,6 +40,12 @@ CONFIG_MACB=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=0xfffff200 +CONFIG_DEBUG_UART_CLOCK=132000000 +CONFIG_DEBUG_UART_BOARD_INIT=y +CONFIG_DEBUG_UART_ANNOUNCE=y CONFIG_ATMEL_USART=y CONFIG_DM_SPI=y CONFIG_ATMEL_SPI=y