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board: sama5d4ek: enable early debug UART

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Enable the 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: Andreas Bießmann <andreas@biessmann.org>
This commit is contained in:
Wenyou Yang 2017-04-13 10:31:21 +08:00 committed by Simon Glass
parent 33034a77a5
commit 22e10be456
4 changed files with 30 additions and 1 deletions
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13
board/atmel/sama5d4ek/sama5d4ek.c
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@ -15,6 +15,7 @@
#include <asm/arch/sama5d3_smc.h>
#include <asm/arch/sama5d4.h>
#include <atmel_hlcdc.h>
#include <debug_uart.h>
#include <lcd.h>
#include <nand.h>
#include <version.h>
@ -161,6 +162,7 @@ void lcd_show_board_info(void)
#endif /* CONFIG_LCD */
#ifdef CONFIG_DEBUG_UART_BOARD_INIT
static void sama5d4ek_serial3_hw_init(void)
{
at91_pio3_set_b_periph(AT91_PIO_PORTE, 17, 1); /* TXD3 */
@ -170,12 +172,21 @@ static void sama5d4ek_serial3_hw_init(void)
at91_periph_clk_enable(ATMEL_ID_USART3);
}
int board_early_init_f(void)
void board_debug_uart_init(void)
{
sama5d4ek_serial3_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)
{

6
configs/sama5d4ek_mmc_defconfig
View File

@ -56,6 +56,12 @@ 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=0xfc00c000
CONFIG_DEBUG_UART_CLOCK=88000000
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/sama5d4ek_nandflash_defconfig
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@ -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=0xfc00c000
CONFIG_DEBUG_UART_CLOCK=88000000
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/sama5d4ek_spiflash_defconfig
View File

@ -53,6 +53,12 @@ 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=0xfc00c000
CONFIG_DEBUG_UART_CLOCK=88000000
CONFIG_DEBUG_UART_BOARD_INIT=y
CONFIG_DEBUG_UART_ANNOUNCE=y
CONFIG_ATMEL_USART=y
CONFIG_DM_SPI=y
CONFIG_ATMEL_SPI=y