stm32mp: fix compilation issue with DEBUG_UART
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>
diff --git a/board/engicam/stm32mp1/Makefile b/board/engicam/stm32mp1/Makefile
index 65560df..155d33f 100644
--- a/board/engicam/stm32mp1/Makefile
+++ b/board/engicam/stm32mp1/Makefile
@@ -8,3 +8,5 @@
else
obj-y += stm32mp1.o
endif
+
+obj-$(CONFIG_DEBUG_UART_BOARD_INIT) += ../../st/stm32mp1/debug_uart.o
diff --git a/board/engicam/stm32mp1/spl.c b/board/engicam/stm32mp1/spl.c
index 3aa738b..2b7779c 100644
--- a/board/engicam/stm32mp1/spl.c
+++ b/board/engicam/stm32mp1/spl.c
@@ -6,7 +6,6 @@
*/
#include <common.h>
-#include <asm/io.h>
/* board early initialisation in board_f: need to use global variable */
static u32 opp_voltage_mv __section(".data");
@@ -22,27 +21,3 @@
return 0;
}
-#ifdef CONFIG_DEBUG_UART_BOARD_INIT
-void board_debug_uart_init(void)
-{
-#if (CONFIG_DEBUG_UART_BASE == STM32_UART4_BASE)
-
-#define RCC_MP_APB1ENSETR (STM32_RCC_BASE + 0x0A00)
-#define RCC_MP_AHB4ENSETR (STM32_RCC_BASE + 0x0A28)
-
- /* UART4 clock enable */
- setbits_le32(RCC_MP_APB1ENSETR, BIT(16));
-
-#define GPIOG_BASE 0x50008000
- /* 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);
-#else
-
-#error("CONFIG_DEBUG_UART_BASE: not supported value")
-
-#endif
-}
-#endif