Enable the 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>
Reviewed-by: Simon Glass <s...@chromium.org>
---
Changes in v4:
- Rebase on the master branch (22e10be45) of u-boot-dm git tree.
- Update the cover-letter.
Changes in v3:
- Use CONFIG_DEBUG_UART_CLOCK as the input clock for the early
debug UART.
- Drop [PATCH 4/5] configs: at91sam9x5ek: move SYS_NO_FLASH to defconfig.
Changes in v2:
- Rebase on the patch set:
[RESEND PATCH v2] ARM: at91: add default config file for sama5d36ek CMP
board
http://lists.denx.de/pipermail/u-boot/2017-February/280525.html
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, 37 insertions(+), 1 deletion(-)
diff --git a/board/atmel/at91sam9x5ek/at91sam9x5ek.c
b/board/atmel/at91sam9x5ek/at91sam9x5ek.c
index 235b33725d..c661c77f83 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>
#ifdef CONFIG_LCD_INFO
@@ -182,11 +183,22 @@ 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();
+#endif
return 0;
}
+#endif
int board_init(void)
{
diff --git a/configs/at91sam9x5ek_dataflash_defconfig
b/configs/at91sam9x5ek_dataflash_defconfig
index 7850b994d5..64707dbdaa 100644
--- a/configs/at91sam9x5ek_dataflash_defconfig
+++ b/configs/at91sam9x5ek_dataflash_defconfig
@@ -40,6 +40,12 @@ 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=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/at91sam9x5ek_mmc_defconfig
b/configs/at91sam9x5ek_mmc_defconfig
index 5990778ada..ddeeeefa1e 100644
--- a/configs/at91sam9x5ek_mmc_defconfig
+++ b/configs/at91sam9x5ek_mmc_defconfig
@@ -40,6 +40,12 @@ 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=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/at91sam9x5ek_nandflash_defconfig
b/configs/at91sam9x5ek_nandflash_defconfig
index 816fe69834..a26b38f330 100644
--- a/configs/at91sam9x5ek_nandflash_defconfig
+++ b/configs/at91sam9x5ek_nandflash_defconfig
@@ -40,6 +40,12 @@ 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=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/at91sam9x5ek_spiflash_defconfig
b/configs/at91sam9x5ek_spiflash_defconfig
index 8574525bc2..75d25d8e61 100644
--- a/configs/at91sam9x5ek_spiflash_defconfig
+++ b/configs/at91sam9x5ek_spiflash_defconfig
@@ -40,6 +40,12 @@ 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=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
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