[U-Boot] [PATCH v1 3/7] board: sama5d3xek: enable early debug UART

[Wenyou Yang]

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/sama5d3xek/sama5d3xek.c    | 15 ++++++++++++++-
 configs/sama5d3xek_mmc_defconfig       |  6 ++++++
 configs/sama5d3xek_nandflash_defconfig |  6 ++++++
 configs/sama5d3xek_spiflash_defconfig  |  6 ++++++
 include/configs/sama5d3xek.h           |  1 +
 5 files changed, 33 insertions(+), 1 deletion(-)

diff --git a/board/atmel/sama5d3xek/sama5d3xek.c b/board/atmel/sama5d3xek/sama5d3xek.c
index a348643..6bd4a68 100644
--- a/board/atmel/sama5d3xek/sama5d3xek.c
+++ b/board/atmel/sama5d3xek/sama5d3xek.c
@@ -13,6 +13,7 @@
 #include <asm/arch/at91_rstc.h>
 #include <asm/arch/gpio.h>
 #include <asm/arch/clk.h>
+#include <debug_uart.h>
 #include <lcd.h>
 #include <linux/ctype.h>
 #include <atmel_hlcdc.h>
@@ -212,12 +213,24 @@ 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();
+#else
+	at91_seriald_hw_init();
+#endif
 	return 0;
 }
+#endif
 
 int board_init(void)
 {
diff --git a/configs/sama5d3xek_mmc_defconfig b/configs/sama5d3xek_mmc_defconfig
index d8556ab..a834552 100644
--- a/configs/sama5d3xek_mmc_defconfig
+++ b/configs/sama5d3xek_mmc_defconfig
@@ -47,6 +47,12 @@ 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=0xffffee00
+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/sama5d3xek_nandflash_defconfig b/configs/sama5d3xek_nandflash_defconfig
index 7cf875d..2e53ee9 100644
--- a/configs/sama5d3xek_nandflash_defconfig
+++ b/configs/sama5d3xek_nandflash_defconfig
@@ -46,6 +46,12 @@ 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=0xffffee00
+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/sama5d3xek_spiflash_defconfig b/configs/sama5d3xek_spiflash_defconfig
index 7906fe7..6f26b4b 100644
--- a/configs/sama5d3xek_spiflash_defconfig
+++ b/configs/sama5d3xek_spiflash_defconfig
@@ -46,6 +46,12 @@ 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=0xffffee00
+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/sama5d3xek.h b/include/configs/sama5d3xek.h
index e45c713..5839fff 100644
--- a/include/configs/sama5d3xek.h
+++ b/include/configs/sama5d3xek.h
@@ -19,6 +19,7 @@
  */
 #include "at91-sama5_common.h"
 
+#define CONFIG_BOARD_EARLY_INIT_F
 #define CONFIG_BOARD_LATE_INIT
 #define CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
 
-- 
2.7.4