Enable an early debug UART to debug problems when an ICE or other
debug mechanism is not available.
Signed-off-by: Wenyou Yang <wenyou.y...@atmel.com>
---
board/atmel/sama5d2_xplained/sama5d2_xplained.c | 14 ++++++++++++++
configs/sama5d2_xplained_mmc_defconfig | 6 ++++++
configs/sama5d2_xplained_spiflash_defconfig | 6 ++++++
include/configs/sama5d2_xplained.h | 2 ++
4 files changed, 28 insertions(+)
diff --git a/board/atmel/sama5d2_xplained/sama5d2_xplained.c
b/board/atmel/sama5d2_xplained/sama5d2_xplained.c
index c94574b..0ae6a7d 100644
--- a/board/atmel/sama5d2_xplained/sama5d2_xplained.c
+++ b/board/atmel/sama5d2_xplained/sama5d2_xplained.c
@@ -7,6 +7,7 @@
#include <common.h>
#include <atmel_hlcdc.h>
+#include <debug_uart.h>
#include <dm.h>
#include <i2c.h>
#include <lcd.h>
@@ -141,12 +142,25 @@ static void board_uart1_hw_init(void)
at91_periph_clk_enable(ATMEL_ID_UART1);
}
+#ifdef CONFIG_DEBUG_UART_BOARD_INIT
+void board_debug_uart_init(void)
+{
+ board_uart1_hw_init();
+}
+#endif
+
+#ifdef CONFIG_BOARD_EARLY_INIT_F
int board_early_init_f(void)
{
+#ifdef CONFIG_DEBUG_UART
+ debug_uart_init();
+#else
board_uart1_hw_init();
+#endif
return 0;
}
+#endif
int board_init(void)
{
diff --git a/configs/sama5d2_xplained_mmc_defconfig
b/configs/sama5d2_xplained_mmc_defconfig
index ab1b58b..ba36c8f 100644
--- a/configs/sama5d2_xplained_mmc_defconfig
+++ b/configs/sama5d2_xplained_mmc_defconfig
@@ -44,6 +44,12 @@ CONFIG_SPI_FLASH=y
CONFIG_SPI_FLASH_ATMEL=y
CONFIG_PINCTRL=y
CONFIG_PINCTRL_AT91PIO4=y
+CONFIG_DEBUG_UART=y
+CONFIG_DEBUG_UART_ATMEL=y
+CONFIG_DEBUG_UART_BASE=0xf8020000
+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/sama5d2_xplained_spiflash_defconfig
b/configs/sama5d2_xplained_spiflash_defconfig
index ecba5ef..85f3f9c 100644
--- a/configs/sama5d2_xplained_spiflash_defconfig
+++ b/configs/sama5d2_xplained_spiflash_defconfig
@@ -44,6 +44,12 @@ CONFIG_SPI_FLASH=y
CONFIG_SPI_FLASH_ATMEL=y
CONFIG_PINCTRL=y
CONFIG_PINCTRL_AT91PIO4=y
+CONFIG_DEBUG_UART=y
+CONFIG_DEBUG_UART_ATMEL=y
+CONFIG_DEBUG_UART_BASE=0xf8020000
+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/sama5d2_xplained.h
b/include/configs/sama5d2_xplained.h
index cada04f..51fabbe 100644
--- a/include/configs/sama5d2_xplained.h
+++ b/include/configs/sama5d2_xplained.h
@@ -15,6 +15,8 @@
#include "at91-sama5_common.h"
+#define CONFIG_BOARD_EARLY_INIT_F
+
#define CONFIG_MISC_INIT_R
/* SDRAM */
--
2.7.4
_______________________________________________
U-Boot mailing list
U-Boot@lists.denx.de
http://lists.denx.de/mailman/listinfo/u-boot
