[U-Boot] [PATCH 4/4] board: at91sam9n12ek: enable early debug UART
Wenyou Yang
wenyou.yang at atmel.com
Tue Feb 28 01:28:26 UTC 2017
Enable early debug UART to debug problems when an ICE or other
debug mechanism is not available.
Signed-off-by: Wenyou Yang <wenyou.yang at atmel.com>
---
board/atmel/at91sam9n12ek/at91sam9n12ek.c | 14 ++++++++++++++
configs/at91sam9n12ek_mmc_defconfig | 6 ++++++
configs/at91sam9n12ek_nandflash_defconfig | 6 ++++++
configs/at91sam9n12ek_spiflash_defconfig | 6 ++++++
4 files changed, 32 insertions(+)
diff --git a/board/atmel/at91sam9n12ek/at91sam9n12ek.c b/board/atmel/at91sam9n12ek/at91sam9n12ek.c
index 8a17bb3bbe..bd483c1836 100644
--- a/board/atmel/at91sam9n12ek/at91sam9n12ek.c
+++ b/board/atmel/at91sam9n12ek/at91sam9n12ek.c
@@ -13,6 +13,7 @@
#include <asm/arch/at91_rstc.h>
#include <asm/arch/at91_pio.h>
#include <asm/arch/clk.h>
+#include <debug_uart.h>
#include <lcd.h>
#include <atmel_hlcdc.h>
@@ -161,11 +162,24 @@ 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();
+#else
at91_seriald_hw_init();
+#endif
return 0;
}
+#endif
int board_init(void)
{
diff --git a/configs/at91sam9n12ek_mmc_defconfig b/configs/at91sam9n12ek_mmc_defconfig
index 8fe19c0c55..89232987cd 100644
--- a/configs/at91sam9n12ek_mmc_defconfig
+++ b/configs/at91sam9n12ek_mmc_defconfig
@@ -34,6 +34,12 @@ 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=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/at91sam9n12ek_nandflash_defconfig b/configs/at91sam9n12ek_nandflash_defconfig
index 1acacbddc2..5a6eff409e 100644
--- a/configs/at91sam9n12ek_nandflash_defconfig
+++ b/configs/at91sam9n12ek_nandflash_defconfig
@@ -40,6 +40,12 @@ 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=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/at91sam9n12ek_spiflash_defconfig b/configs/at91sam9n12ek_spiflash_defconfig
index 74457861b6..10650a3ae2 100644
--- a/configs/at91sam9n12ek_spiflash_defconfig
+++ b/configs/at91sam9n12ek_spiflash_defconfig
@@ -34,6 +34,12 @@ 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=0
+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
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