[U-Boot] [PATCH v2 3/4] board: at91sam9x5ek: 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>
Reviewed-by: Simon Glass <sjg at chromium.org>
---

Changes in v2: None

 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, 38 insertions(+)

diff --git a/board/atmel/at91sam9x5ek/at91sam9x5ek.c b/board/atmel/at91sam9x5ek/at91sam9x5ek.c
index 9bd5eaf363..77714db3e7 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>
 #include <atmel_mci.h>
@@ -192,11 +193,24 @@ int board_mmc_init(bd_t *bd)
 }
 #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/at91sam9x5ek_dataflash_defconfig b/configs/at91sam9x5ek_dataflash_defconfig
index c3feca28bc..d7408e8b29 100644
--- a/configs/at91sam9x5ek_dataflash_defconfig
+++ b/configs/at91sam9x5ek_dataflash_defconfig
@@ -37,6 +37,12 @@ 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=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/at91sam9x5ek_mmc_defconfig b/configs/at91sam9x5ek_mmc_defconfig
index f4b0edd4ca..07f62fc38b 100644
--- a/configs/at91sam9x5ek_mmc_defconfig
+++ b/configs/at91sam9x5ek_mmc_defconfig
@@ -37,6 +37,12 @@ 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=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/at91sam9x5ek_nandflash_defconfig b/configs/at91sam9x5ek_nandflash_defconfig
index 5c3463260e..15ac465abd 100644
--- a/configs/at91sam9x5ek_nandflash_defconfig
+++ b/configs/at91sam9x5ek_nandflash_defconfig
@@ -44,6 +44,12 @@ CONFIG_PINCTRL=y
 CONFIG_PINCTRL_AT91=y
 CONFIG_DM_SERIAL=y
 CONFIG_ATMEL_USART=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_DM_SPI=y
 CONFIG_ATMEL_SPI=y
 CONFIG_USB=y
diff --git a/configs/at91sam9x5ek_spiflash_defconfig b/configs/at91sam9x5ek_spiflash_defconfig
index 939a6bbd4a..d44d851848 100644
--- a/configs/at91sam9x5ek_spiflash_defconfig
+++ b/configs/at91sam9x5ek_spiflash_defconfig
@@ -37,6 +37,12 @@ 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=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