From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wenyou Yang Date: Wed, 12 Apr 2017 17:08:15 +0800 Subject: [U-Boot] [PATCH v2 3/3] board: at91sam9n12ek: Enable early debug UART In-Reply-To: <20170412090815.19944-1-wenyou.yang@atmel.com> References: <20170412090815.19944-1-wenyou.yang@atmel.com> Message-ID: <20170412090815.19944-4-wenyou.yang@atmel.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Enable the early debug UART to debug problems when an ICE or other debug mechanism is not available. Signed-off-by: Wenyou Yang --- Changes in v2: - Use CONFIG_DEBUG_UART_CLOCK as the input clock for the early debug UART. - Move out [PATCH 1/4] ARM: dts: at91: add dts files for at91sam9n12ek. board/atmel/at91sam9n12ek/at91sam9n12ek.c | 13 +++++++++++++ configs/at91sam9n12ek_mmc_defconfig | 6 ++++++ configs/at91sam9n12ek_nandflash_defconfig | 6 ++++++ configs/at91sam9n12ek_spiflash_defconfig | 6 ++++++ 4 files changed, 31 insertions(+) diff --git a/board/atmel/at91sam9n12ek/at91sam9n12ek.c b/board/atmel/at91sam9n12ek/at91sam9n12ek.c index 02b7790627..1105428986 100644 --- a/board/atmel/at91sam9n12ek/at91sam9n12ek.c +++ b/board/atmel/at91sam9n12ek/at91sam9n12ek.c @@ -13,6 +13,7 @@ #include #include #include +#include #include #include #include @@ -162,10 +163,22 @@ void at91sam9n12ek_usb_hw_init(void) } #endif +#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/at91sam9n12ek_mmc_defconfig b/configs/at91sam9n12ek_mmc_defconfig index abb07260be..e7e8a014c6 100644 --- a/configs/at91sam9n12ek_mmc_defconfig +++ b/configs/at91sam9n12ek_mmc_defconfig @@ -35,6 +35,12 @@ 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=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/at91sam9n12ek_nandflash_defconfig b/configs/at91sam9n12ek_nandflash_defconfig index 1b420e62b8..e626805591 100644 --- a/configs/at91sam9n12ek_nandflash_defconfig +++ b/configs/at91sam9n12ek_nandflash_defconfig @@ -35,6 +35,12 @@ 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=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/at91sam9n12ek_spiflash_defconfig b/configs/at91sam9n12ek_spiflash_defconfig index 9048b14de4..a5abcd1f3b 100644 --- a/configs/at91sam9n12ek_spiflash_defconfig +++ b/configs/at91sam9n12ek_spiflash_defconfig @@ -35,6 +35,12 @@ 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=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 -- 2.11.0