mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-19 09:43:08 +00:00
c37a668481
Fix the compilation issue when CONFIG_DEBUG_UART is activated
drivers/serial/serial_stm32.o: in function `debug_uart_init':
drivers/serial/serial_stm32.c:291: undefined reference to \
`board_debug_uart_init'
The board_debug_uart_init is needed for SPL boot, called in
cpu.c::mach_cpu_init(); it is defined in board/st/stm32mp1/spl.c.
But with the removal #ifdefs patch, the function debug_uart_init() is
always compiled even if not present in the final U-Boot image.
This patch adds a file to provided this function when DEBUG_UART and SPL
are activated.
Fixes: c8b2eef52b ("stm32mp15: tidy up #ifdefs in cpu.c")
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
29 lines
754 B
C
29 lines
754 B
C
// SPDX-License-Identifier: GPL-2.0-or-later OR BSD-3-Clause
|
|
/*
|
|
* Copyright (C) 2022, STMicroelectronics - All Rights Reserved
|
|
*/
|
|
|
|
#include <config.h>
|
|
#include <debug_uart.h>
|
|
#include <asm/io.h>
|
|
#include <asm/arch/stm32.h>
|
|
#include <linux/bitops.h>
|
|
|
|
#define RCC_MP_APB1ENSETR (STM32_RCC_BASE + 0x0A00)
|
|
#define RCC_MP_AHB4ENSETR (STM32_RCC_BASE + 0x0A28)
|
|
|
|
#define GPIOG_BASE 0x50008000
|
|
|
|
void board_debug_uart_init(void)
|
|
{
|
|
if (CONFIG_DEBUG_UART_BASE == STM32_UART4_BASE) {
|
|
/* UART4 clock enable */
|
|
setbits_le32(RCC_MP_APB1ENSETR, BIT(16));
|
|
|
|
/* GPIOG clock enable */
|
|
writel(BIT(6), RCC_MP_AHB4ENSETR);
|
|
/* GPIO configuration for ST boards: Uart4 TX = G11 */
|
|
writel(0xffbfffff, GPIOG_BASE + 0x00);
|
|
writel(0x00006000, GPIOG_BASE + 0x24);
|
|
}
|
|
}
|