[U-Boot] [PATCH 03/10] rockchip: rk3036: add board_debug_uart_init()

[Kever Yang]

Use board_debug_uart_init() for UART iomux init instead of
do it in board_init_f, and move the function to soc file so
that we can find all the soc/board setting in soc file and
use a common board file.

Signed-off-by: Kever Yang <kever.yang at rock-chips.com>
---

 arch/arm/mach-rockchip/rk3036-board-spl.c | 19 +--------------
 arch/arm/mach-rockchip/rk3036/Makefile    |  1 +
 arch/arm/mach-rockchip/rk3036/rk3036.c    | 40 +++++++++++++++++++++++++++++++
 3 files changed, 42 insertions(+), 18 deletions(-)
 create mode 100644 arch/arm/mach-rockchip/rk3036/rk3036.c

diff --git a/arch/arm/mach-rockchip/rk3036-board-spl.c b/arch/arm/mach-rockchip/rk3036-board-spl.c
index 4b4016b..71124c8 100644
--- a/arch/arm/mach-rockchip/rk3036-board-spl.c
+++ b/arch/arm/mach-rockchip/rk3036-board-spl.c
@@ -8,17 +8,11 @@
 #include <debug_uart.h>
 #include <asm/io.h>
 #include <asm/arch/bootrom.h>
-#include <asm/arch/grf_rk3036.h>
-#include <asm/arch/hardware.h>
 #include <asm/arch/sdram_rk3036.h>
 #include <asm/arch/uart.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
-#define GRF_BASE	0x20008000
-
-#define DEBUG_UART_BASE	0x20068000
-
 void rockchip_stimer_init(void)
 {
 	asm volatile("mcr p15, 0, %0, c14, c0, 0"
@@ -32,18 +26,7 @@ void rockchip_stimer_init(void)
 
 void board_init_f(ulong dummy)
 {
-#ifdef EARLY_DEBUG
-	struct rk3036_grf * const grf = (void *)GRF_BASE;
-	/*
-	 * NOTE: sd card and debug uart use same iomux in rk3036,
-	 * so if you enable uart,
-	 * you can not boot from sdcard
-	 */
-	rk_clrsetreg(&grf->gpio1c_iomux,
-		     GPIO1C3_MASK << GPIO1C3_SHIFT |
-		     GPIO1C2_MASK << GPIO1C2_SHIFT,
-		     GPIO1C3_UART2_SOUT << GPIO1C3_SHIFT |
-		     GPIO1C2_UART2_SIN << GPIO1C2_SHIFT);
+#ifdef CONFIG_DEBUG_UART
 	debug_uart_init();
 #endif
 
diff --git a/arch/arm/mach-rockchip/rk3036/Makefile b/arch/arm/mach-rockchip/rk3036/Makefile
index 20d28f7..299fc50 100644
--- a/arch/arm/mach-rockchip/rk3036/Makefile
+++ b/arch/arm/mach-rockchip/rk3036/Makefile
@@ -10,4 +10,5 @@ ifndef CONFIG_SPL_BUILD
 obj-y += syscon_rk3036.o
 endif
 
+obj-y += rk3036.o
 obj-y += sdram_rk3036.o
diff --git a/arch/arm/mach-rockchip/rk3036/rk3036.c b/arch/arm/mach-rockchip/rk3036/rk3036.c
new file mode 100644
index 0000000..5a486ab
--- /dev/null
+++ b/arch/arm/mach-rockchip/rk3036/rk3036.c
@@ -0,0 +1,40 @@
+/*
+ * (C) Copyright 2018 Rockchip Electronics Co., Ltd
+ *
+ * SPDX-License-Identifier:     GPL-2.0+
+ */
+#include <asm/io.h>
+#include <asm/arch/grf_rk3036.h>
+#include <asm/arch/hardware.h>
+
+#ifdef CONFIG_DEBUG_UART_BOARD_INIT
+void board_debug_uart_init(void)
+{
+#define GRF_BASE	0x20008000
+	struct rk3036_grf * const grf = (void *)GRF_BASE;
+	enum {
+		GPIO1C3_SHIFT		= 6,
+		GPIO1C3_MASK		= 3 << GPIO1C3_SHIFT,
+		GPIO1C3_GPIO		= 0,
+		GPIO1C3_MMC0_D1,
+		GPIO1C3_UART2_SOUT,
+
+		GPIO1C2_SHIFT		= 4,
+		GPIO1C2_MASK		= 3 << GPIO1C2_SHIFT,
+		GPIO1C2_GPIO		= 0,
+		GPIO1C2_MMC0_D0,
+		GPIO1C2_UART2_SIN,
+	};
+	/*
+	 * NOTE: sd card and debug uart use same iomux in rk3036,
+	 * so if you enable uart,
+	 * you can not boot from sdcard
+	 */
+	rk_clrsetreg(&grf->gpio1c_iomux,
+		     GPIO1C3_MASK << GPIO1C3_SHIFT |
+		     GPIO1C2_MASK << GPIO1C2_SHIFT,
+		     GPIO1C3_UART2_SOUT << GPIO1C3_SHIFT |
+		     GPIO1C2_UART2_SIN << GPIO1C2_SHIFT);
+}
+#endif
+
-- 
1.9.1