[U-Boot] [PATCH 07/10] rockchip: rk3288: 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 for all rockchip SoCs later.

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

 arch/arm/mach-rockchip/rk3288-board-spl.c | 11 ++---------
 arch/arm/mach-rockchip/rk3288-board-tpl.c | 13 ++-----------
 arch/arm/mach-rockchip/rk3288/rk3288.c    | 13 +++++++++++++
 3 files changed, 17 insertions(+), 20 deletions(-)

diff --git a/arch/arm/mach-rockchip/rk3288-board-spl.c b/arch/arm/mach-rockchip/rk3288-board-spl.c
index 8f22549..22b12a1 100644
--- a/arch/arm/mach-rockchip/rk3288-board-spl.c
+++ b/arch/arm/mach-rockchip/rk3288-board-spl.c
@@ -160,15 +160,7 @@ void board_init_f(ulong dummy)
 	int ret;
 
 	/* Example code showing how to enable the debug UART on RK3288 */
-#include <asm/arch/grf_rk3288.h>
-	/* Enable early UART on the RK3288 */
-#define GRF_BASE	0xff770000
-	struct rk3288_grf * const grf = (void *)GRF_BASE;
-
-	rk_clrsetreg(&grf->gpio7ch_iomux, GPIO7C7_MASK << GPIO7C7_SHIFT |
-		     GPIO7C6_MASK << GPIO7C6_SHIFT,
-		     GPIO7C7_UART2DBG_SOUT << GPIO7C7_SHIFT |
-		     GPIO7C6_UART2DBG_SIN << GPIO7C6_SHIFT);
+#ifdef CONFIG_DEBUG_UART
 	/*
 	 * Debug UART can be used from here if required:
 	 *
@@ -179,6 +171,7 @@ void board_init_f(ulong dummy)
 	 */
 	debug_uart_init();
 	debug("\nspl:debug uart enabled in %s\n", __func__);
+#endif
 	ret = spl_early_init();
 	if (ret) {
 		debug("spl_early_init() failed: %d\n", ret);
diff --git a/arch/arm/mach-rockchip/rk3288-board-tpl.c b/arch/arm/mach-rockchip/rk3288-board-tpl.c
index e34142c..cd2a33b 100644
--- a/arch/arm/mach-rockchip/rk3288-board-tpl.c
+++ b/arch/arm/mach-rockchip/rk3288-board-tpl.c
@@ -13,7 +13,6 @@
 #include <asm/io.h>
 #include <asm/arch/bootrom.h>
 #include <asm/arch/clock.h>
-#include <asm/arch/grf_rk3288.h>
 #include <asm/arch/periph.h>
 #include <asm/arch/pmu_rk3288.h>
 #include <asm/arch/sys_proto.h>
@@ -31,20 +30,12 @@ void rockchip_stimer_init(void)
 	writel(1, CONFIG_ROCKCHIP_STIMER_BASE + 0x10);
 }
 
-#define GRF_BASE		0xff770000
 void board_init_f(ulong dummy)
 {
 	struct udevice *dev;
 	int ret;
 
-	/* Example code showing how to enable the debug UART on RK3288 */
-	/* Enable early UART on the RK3288 */
-	struct rk3288_grf * const grf = (void *)GRF_BASE;
-
-	rk_clrsetreg(&grf->gpio7ch_iomux, GPIO7C7_MASK << GPIO7C7_SHIFT |
-		     GPIO7C6_MASK << GPIO7C6_SHIFT,
-		     GPIO7C7_UART2DBG_SOUT << GPIO7C7_SHIFT |
-		     GPIO7C6_UART2DBG_SIN << GPIO7C6_SHIFT);
+#ifdef CONFIG_DEBUG_UART
 	/*
 	 * Debug UART can be used from here if required:
 	 *
@@ -54,7 +45,7 @@ void board_init_f(ulong dummy)
 	 * printascii("string");
 	 */
 	debug_uart_init();
-
+#endif
 	ret = spl_early_init();
 	if (ret) {
 		debug("spl_early_init() failed: %d\n", ret);
diff --git a/arch/arm/mach-rockchip/rk3288/rk3288.c b/arch/arm/mach-rockchip/rk3288/rk3288.c
index 8f5aaa1..232796e 100644
--- a/arch/arm/mach-rockchip/rk3288/rk3288.c
+++ b/arch/arm/mach-rockchip/rk3288/rk3288.c
@@ -19,3 +19,16 @@ int arch_cpu_init(void)
 
 	return 0;
 }
+
+#ifdef CONFIG_DEBUG_UART_BOARD_INIT
+void board_debug_uart_init(void)
+{
+	/* Enable early UART on the RK3288 */
+	struct rk3288_grf * const grf = (void *)GRF_BASE;
+
+	rk_clrsetreg(&grf->gpio7ch_iomux, GPIO7C7_MASK << GPIO7C7_SHIFT |
+		     GPIO7C6_MASK << GPIO7C6_SHIFT,
+		     GPIO7C7_UART2DBG_SOUT << GPIO7C7_SHIFT |
+		     GPIO7C6_UART2DBG_SIN << GPIO7C6_SHIFT);
+}
+#endif
-- 
1.9.1