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board: sama5d2_xplained: Enable an early debug UART

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Enable an 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>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Andreas Bießmann <andreas.devel@googlemail.com>
This commit is contained in:
Wenyou Yang 2016-10-17 09:55:26 +08:00 committed by Andreas Bießmann
parent 0daa2e1870
commit 2992dd833d
4 changed files with 29 additions and 1 deletions
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16
board/atmel/sama5d2_xplained/sama5d2_xplained.c
View file

@ -7,6 +7,7 @@
#include <common.h>
#include <atmel_hlcdc.h>
#include <debug_uart.h>
#include <dm.h>
#include <i2c.h>
#include <lcd.h>
@ -141,12 +142,25 @@ static void board_uart1_hw_init(void)
at91_periph_clk_enable(ATMEL_ID_UART1);
}
int board_early_init_f(void)
#ifdef CONFIG_DEBUG_UART_BOARD_INIT
void board_debug_uart_init(void)
{
board_uart1_hw_init();
}
#endif
#ifdef CONFIG_BOARD_EARLY_INIT_F
int board_early_init_f(void)
{
#ifdef CONFIG_DEBUG_UART
debug_uart_init();
#else
board_uart1_hw_init();
#endif
return 0;
}
#endif
int board_init(void)
{

6
configs/sama5d2_xplained_mmc_defconfig
View file

@ -52,6 +52,12 @@ CONFIG_SPI_FLASH=y
CONFIG_SPI_FLASH_ATMEL=y
CONFIG_PINCTRL=y
CONFIG_PINCTRL_AT91PIO4=y
CONFIG_DEBUG_UART=y
CONFIG_DEBUG_UART_ATMEL=y
CONFIG_DEBUG_UART_BASE=0xf8020000
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

6
configs/sama5d2_xplained_spiflash_defconfig
View file

@ -51,6 +51,12 @@ CONFIG_SPI_FLASH=y
CONFIG_SPI_FLASH_ATMEL=y
CONFIG_PINCTRL=y
CONFIG_PINCTRL_AT91PIO4=y
CONFIG_DEBUG_UART=y
CONFIG_DEBUG_UART_ATMEL=y
CONFIG_DEBUG_UART_BASE=0xf8020000
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
include/configs/sama5d2_xplained.h
View file

@ -15,6 +15,8 @@
#include "at91-sama5_common.h"
#define CONFIG_BOARD_EARLY_INIT_F
#define CONFIG_MISC_INIT_R
/* SDRAM */