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From: Wenyou Yang <wenyou.yang@atmel.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH v2 4/8] board: sama5d4_xplained: enable early debug UART
Date: Fri, 28 Oct 2016 15:16:45 +0800	[thread overview]
Message-ID: <1477639009-10675-5-git-send-email-wenyou.yang@atmel.com> (raw)
In-Reply-To: <1477639009-10675-1-git-send-email-wenyou.yang@atmel.com>

Enable early debug UART to debug problems when an ICE or other
debug mechanism is not available.

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
---

Changes in v2: None

 board/atmel/sama5d4_xplained/sama5d4_xplained.c | 15 ++++++++++++++-
 configs/sama5d4_xplained_mmc_defconfig          |  6 ++++++
 configs/sama5d4_xplained_nandflash_defconfig    |  6 ++++++
 configs/sama5d4_xplained_spiflash_defconfig     |  6 ++++++
 include/configs/sama5d4_xplained.h              |  2 ++
 5 files changed, 34 insertions(+), 1 deletion(-)

diff --git a/board/atmel/sama5d4_xplained/sama5d4_xplained.c b/board/atmel/sama5d4_xplained/sama5d4_xplained.c
index 2b51e4c..c46a7a4 100644
--- a/board/atmel/sama5d4_xplained/sama5d4_xplained.c
+++ b/board/atmel/sama5d4_xplained/sama5d4_xplained.c
@@ -16,6 +16,7 @@
 #include <asm/arch/sama5d3_smc.h>
 #include <asm/arch/sama5d4.h>
 #include <atmel_hlcdc.h>
+#include <debug_uart.h>
 #include <lcd.h>
 #include <net.h>
 #include <netdev.h>
@@ -197,12 +198,24 @@ static void sama5d4_xplained_serial3_hw_init(void)
 	at91_periph_clk_enable(ATMEL_ID_USART3);
 }
 
-int board_early_init_f(void)
+#ifdef CONFIG_DEBUG_UART_BOARD_INIT
+void board_debug_uart_init(void)
 {
 	sama5d4_xplained_serial3_hw_init();
+}
+#endif
 
+#ifdef CONFIG_BOARD_EARLY_INIT_F
+int board_early_init_f(void)
+{
+#ifdef CONFIG_DEBUG_UART
+	debug_uart_init();
+#else
+	sama5d4_xplained_serial3_hw_init();
+#endif
 	return 0;
 }
+#endif
 
 int board_init(void)
 {
diff --git a/configs/sama5d4_xplained_mmc_defconfig b/configs/sama5d4_xplained_mmc_defconfig
index e25b26a..e7518e8 100644
--- a/configs/sama5d4_xplained_mmc_defconfig
+++ b/configs/sama5d4_xplained_mmc_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=0xfc00c000
+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/sama5d4_xplained_nandflash_defconfig b/configs/sama5d4_xplained_nandflash_defconfig
index 53dfdd6..790d7d1 100644
--- a/configs/sama5d4_xplained_nandflash_defconfig
+++ b/configs/sama5d4_xplained_nandflash_defconfig
@@ -45,6 +45,12 @@ 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=0xfc00c000
+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/sama5d4_xplained_spiflash_defconfig b/configs/sama5d4_xplained_spiflash_defconfig
index 17fd9a2..af6263f 100644
--- a/configs/sama5d4_xplained_spiflash_defconfig
+++ b/configs/sama5d4_xplained_spiflash_defconfig
@@ -45,6 +45,12 @@ 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=0xfc00c000
+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/sama5d4_xplained.h b/include/configs/sama5d4_xplained.h
index 1173583..8032164 100644
--- a/include/configs/sama5d4_xplained.h
+++ b/include/configs/sama5d4_xplained.h
@@ -15,6 +15,8 @@
 
 #include "at91-sama5_common.h"
 
+#define CONFIG_BOARD_EARLY_INIT_F
+
 /* SDRAM */
 #define CONFIG_NR_DRAM_BANKS		1
 #define CONFIG_SYS_SDRAM_BASE           ATMEL_BASE_DDRCS
-- 
2.7.4

  parent reply	other threads:[~2016-10-28  7:16 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-10-28  7:16 [U-Boot] [PATCH v2 0/8] board: sama5d4: convert boards to support DM/DT Wenyou Yang
2016-10-28  7:16 ` [U-Boot] [PATCH v2 1/8] configs: at91-sama5_common: fix for CONFIG_AT91_GPIO Wenyou Yang
2017-02-04 22:11   ` [U-Boot] [U-Boot, v2, " Andreas Bießmann
2016-10-28  7:16 ` [U-Boot] [PATCH v2 2/8] board: sama5d4_xplained: move config options to defconfig Wenyou Yang
2017-02-04 22:20   ` [U-Boot] [U-Boot, v2, " Andreas Bießmann
2017-02-04 22:33   ` Andreas Bießmann
2017-02-04 22:44   ` Andreas Bießmann
2016-10-28  7:16 ` [U-Boot] [PATCH v2 3/8] board: sama5d4_xplained: clean up code Wenyou Yang
2017-02-04 22:47   ` [U-Boot] [U-Boot, v2, " Andreas Bießmann
2016-10-28  7:16 ` Wenyou Yang [this message]
2017-02-04 22:49   ` [U-Boot] [U-Boot, v2, 4/8] board: sama5d4_xplained: enable early debug UART Andreas Bießmann
2016-10-28  7:16 ` [U-Boot] [PATCH v2 5/8] board: sama5d4ek: move config options to defconfig Wenyou Yang
2017-02-04 22:56   ` [U-Boot] [U-Boot, v2, " Andreas Bießmann
2016-10-28  7:16 ` [U-Boot] [PATCH v2 6/8] board: sama5d4ek: clean up code Wenyou Yang
2017-02-06  9:11   ` Andreas Bießmann
2016-10-28  7:16 ` [U-Boot] [PATCH v2 7/8] board: sama5d4ek: enable early debug UART Wenyou Yang
2017-02-06  9:11   ` Andreas Bießmann
2016-10-28  7:16 ` [U-Boot] [PATCH v2 8/8] configs: sama5d4: move CONFIG_SYS_NO_FLASH to *defconfig Wenyou Yang
2017-02-06  9:12   ` Andreas Bießmann
2017-02-06 19:52 ` [U-Boot] [PATCH v2 0/8] board: sama5d4: convert boards to support DM/DT Andreas Bießmann
2017-02-07  6:15   ` Wenyou.Yang at microchip.com

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