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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: c8b2eef52b6c ("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>
30 lines
754 B
C
30 lines
754 B
C
// SPDX-License-Identifier: GPL-2.0-or-later OR BSD-3-Clause
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/*
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* Copyright (C) 2022, STMicroelectronics - All Rights Reserved
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*/
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#include <config.h>
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#include <debug_uart.h>
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#include <asm/io.h>
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#include <asm/arch/stm32.h>
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#include <linux/bitops.h>
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#define RCC_MP_APB1ENSETR (STM32_RCC_BASE + 0x0A00)
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#define RCC_MP_AHB4ENSETR (STM32_RCC_BASE + 0x0A28)
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#define GPIOG_BASE 0x50008000
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void board_debug_uart_init(void)
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{
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if (CONFIG_DEBUG_UART_BASE == STM32_UART4_BASE) {
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/* UART4 clock enable */
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setbits_le32(RCC_MP_APB1ENSETR, BIT(16));
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/* GPIOG clock enable */
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writel(BIT(6), RCC_MP_AHB4ENSETR);
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/* GPIO configuration for ST boards: Uart4 TX = G11 */
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writel(0xffbfffff, GPIOG_BASE + 0x00);
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writel(0x00006000, GPIOG_BASE + 0x24);
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}
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}
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