[U-Boot] [PATCH v2] rockchip: rk3188: use board_debug_uart_init() for UART io init

[Kever Yang]

Sync with other rockchip SoCs, use board_debug_uart_init() to
init default UART iomux.

Signed-off-by: Kever Yang <kever.y...@rock-chips.com>
---

Changes in v2:
- rebase on uboot-rockchip/master

 arch/arm/mach-rockchip/Kconfig            |  1 +
 arch/arm/mach-rockchip/rk3188-board-spl.c | 28 ++++++++++++++---------
 2 files changed, 18 insertions(+), 11 deletions(-)

diff --git a/arch/arm/mach-rockchip/Kconfig b/arch/arm/mach-rockchip/Kconfig
index 0e15f7b859..6dc8e3a017 100644
--- a/arch/arm/mach-rockchip/Kconfig
+++ b/arch/arm/mach-rockchip/Kconfig
@@ -35,6 +35,7 @@ config ROCKCHIP_RK3188
        select SPL_RAM
        select SPL_DRIVERS_MISC_SUPPORT
        select SPL_ROCKCHIP_EARLYRETURN_TO_BROM
+       select DEBUG_UART_BOARD_INIT
        select BOARD_LATE_INIT
        select ROCKCHIP_BROM_HELPER
        help
diff --git a/arch/arm/mach-rockchip/rk3188-board-spl.c 
b/arch/arm/mach-rockchip/rk3188-board-spl.c
index 1877855db8..3c6c3d3c09 100644
--- a/arch/arm/mach-rockchip/rk3188-board-spl.c
+++ b/arch/arm/mach-rockchip/rk3188-board-spl.c
@@ -93,24 +93,21 @@ static int setup_arm_clock(void)
        return ret;
 }
 
-#define GRF_BASE       0x20008000
-
-void board_init_f(ulong dummy)
+void board_debug_uart_init(void)
 {
-       __maybe_unused struct rk3188_grf * const grf = (void *)GRF_BASE;
-       struct udevice *pinctrl, *dev;
-       int ret;
-
-       /* Example code showing how to enable the debug UART on RK3188 */
-#ifdef EARLY_UART
+       /* Enable early UART on the RK3188 */
+#define GRF_BASE       0x20008000
+       struct rk3188_grf * const grf = (void *)GRF_BASE;
        enum {
                GPIO1B1_SHIFT           = 2,
                GPIO1B1_MASK            = 3,
-               GPIO1B1_UART2_SOUT      = 1,
+               GPIO1B1_GPIO            = 0,
+               GPIO1B1_UART2_SOUT,
 
                GPIO1B0_SHIFT           = 0,
                GPIO1B0_MASK            = 3,
-               GPIO1B0_UART2_SIN       = 1,
+               GPIO1B0_GPIO            = 0,
+               GPIO1B0_UART2_SIN,
        };
 
        /* Enable early UART on the RK3188 */
@@ -119,6 +116,15 @@ void board_init_f(ulong dummy)
                     GPIO1B0_MASK << GPIO1B0_SHIFT,
                     GPIO1B1_UART2_SOUT << GPIO1B1_SHIFT |
                     GPIO1B0_UART2_SIN << GPIO1B0_SHIFT);
+}
+
+void board_init_f(ulong dummy)
+{
+       struct udevice *pinctrl, *dev;
+       int ret;
+
+#define EARLY_UART
+#ifdef EARLY_UART
        /*
         * Debug UART can be used from here if required:
         *
-- 
2.18.0

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