[PATCH v2 9/9] board: stm32mp1: move the function board_debug_uart_init in spl.c

[Patrick Delaunay]

Move the debug function board_debug_uart_init in spl.c
as the debug_uart_init() function is called in arch_cpu_init()
only for SPL and remove the board.c file.

For TFABOOT, the UART TX pin configuration is done in TF-A.

Signed-off-by: Patrick Delaunay <patrick.delaunay at st.com>
---

Changes in v2:
- NEW: merge spl.c and board.c to avoid a file with only one function

 board/st/stm32mp1/Makefile |  2 --
 board/st/stm32mp1/board.c  | 34 ----------------------------------
 board/st/stm32mp1/spl.c    | 26 ++++++++++++++++++++++++++
 3 files changed, 26 insertions(+), 36 deletions(-)
 delete mode 100644 board/st/stm32mp1/board.c

diff --git a/board/st/stm32mp1/Makefile b/board/st/stm32mp1/Makefile
index 8188075b1a..65560df290 100644
--- a/board/st/stm32mp1/Makefile
+++ b/board/st/stm32mp1/Makefile
@@ -8,5 +8,3 @@ obj-y += spl.o
 else
 obj-y += stm32mp1.o
 endif
-
-obj-y += board.o
diff --git a/board/st/stm32mp1/board.c b/board/st/stm32mp1/board.c
deleted file mode 100644
index 1887941e57..0000000000
--- a/board/st/stm32mp1/board.c
+++ /dev/null
@@ -1,34 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
-/*
- * Copyright (C) 2018, STMicroelectronics - All Rights Reserved
- */
-
-#include <common.h>
-#include <asm/io.h>
-
-#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 EVAL board
-	 * => Uart4 TX = G11
-	 */
-	writel(0xffbfffff, GPIOG_BASE + 0x00);
-	writel(0x00006000, GPIOG_BASE + 0x24);
-#else
-
-#error("CONFIG_DEBUG_UART_BASE: not supported value")
-
-#endif
-}
-#endif
diff --git a/board/st/stm32mp1/spl.c b/board/st/stm32mp1/spl.c
index 96ab671169..977703f58a 100644
--- a/board/st/stm32mp1/spl.c
+++ b/board/st/stm32mp1/spl.c
@@ -5,6 +5,7 @@
 
 #include <config.h>
 #include <common.h>
+#include <asm/io.h>
 #include "../common/stpmic1.h"
 
 /* board early initialisation in board_f: need to use global variable */
@@ -23,3 +24,28 @@ int board_early_init_f(void)
 
 	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
-- 
2.17.1