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>
---
Changes in v4: None
Changes in v3:
- Convert the macb to support DM and clean up macb init code.
- Remain the SPI speed macros.
- Update the config options for SPL.
- Update the commit log.
- Remove the unneeded dbgu init during board_early_init_f stage.
- Use CONFIG_DEBUG_UART_CLOCK as the input clock for the early
debug uart.
- Drop [PATCH] configs: sama5d3_xplained: move CONFIG_SYS_NO_FLASH
to defconfig.
- Rebase on v2017.03.
Changes in v2:
- rebase on the patch set:
[PATCH v3 0/8] board: sama5d4: convert boards to support DM/DT
http://lists.denx.de/pipermail/u-boot/2017-February/280506.html
board/atmel/sama5d3_xplained/sama5d3_xplained.c | 13 ++++++++++++-
configs/sama5d3_xplained_mmc_defconfig | 6 ++++++
configs/sama5d3_xplained_nandflash_defconfig | 6 ++++++
3 files changed, 24 insertions(+), 1 deletion(-)
diff --git a/board/atmel/sama5d3_xplained/sama5d3_xplained.c
b/board/atmel/sama5d3_xplained/sama5d3_xplained.c
index f2f5506adc..21f332b382 100644
--- a/board/atmel/sama5d3_xplained/sama5d3_xplained.c
+++ b/board/atmel/sama5d3_xplained/sama5d3_xplained.c
@@ -12,6 +12,7 @@
#include <asm/arch/at91_rstc.h>
#include <asm/arch/gpio.h>
#include <asm/arch/clk.h>
+#include <debug_uart.h>
#include <spl.h>
#include <asm/arch/atmel_mpddrc.h>
#include <asm/arch/at91_wdt.h>
@@ -65,12 +66,22 @@ static void sama5d3_xplained_mci0_hw_init(void)
}
#endif
-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/sama5d3_xplained_mmc_defconfig
b/configs/sama5d3_xplained_mmc_defconfig
index 921b6a2112..d28d1d9a33 100644
--- a/configs/sama5d3_xplained_mmc_defconfig
+++ b/configs/sama5d3_xplained_mmc_defconfig
@@ -54,6 +54,12 @@ CONFIG_PINCTRL=y
CONFIG_SPL_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=132000000
+CONFIG_DEBUG_UART_BOARD_INIT=y
+CONFIG_DEBUG_UART_ANNOUNCE=y
CONFIG_ATMEL_USART=y
CONFIG_USB=y
CONFIG_DM_USB=y
diff --git a/configs/sama5d3_xplained_nandflash_defconfig
b/configs/sama5d3_xplained_nandflash_defconfig
index 042f6a78e7..8cc8169de5 100644
--- a/configs/sama5d3_xplained_nandflash_defconfig
+++ b/configs/sama5d3_xplained_nandflash_defconfig
@@ -51,6 +51,12 @@ CONFIG_PINCTRL=y
CONFIG_SPL_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=132000000
+CONFIG_DEBUG_UART_BOARD_INIT=y
+CONFIG_DEBUG_UART_ANNOUNCE=y
CONFIG_ATMEL_USART=y
CONFIG_USB=y
CONFIG_DM_USB=y
--
2.11.0
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