rockchip: rk3288: remove pinctrl init in spl_board_init

The pinctrl will default init the io while driver is probe
with new pinctrl driver.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/arch/arm/mach-rockchip/rk3288-board-spl.c b/arch/arm/mach-rockchip/rk3288-board-spl.c
index d8d215d..b7fab63 100644
--- a/arch/arm/mach-rockchip/rk3288-board-spl.c
+++ b/arch/arm/mach-rockchip/rk3288-board-spl.c
@@ -23,7 +23,6 @@
 #include <asm/arch-rockchip/sdram_common.h>
 #include <asm/arch-rockchip/sys_proto.h>
 #include <asm/arch-rockchip/timer.h>
-#include <dm/pinctrl.h>
 #include <dm/root.h>
 #include <dm/test.h>
 #include <dm/util.h>
diff --git a/arch/arm/mach-rockchip/rk3288-board.c b/arch/arm/mach-rockchip/rk3288-board.c
index e2de5b2..a250d50 100644
--- a/arch/arm/mach-rockchip/rk3288-board.c
+++ b/arch/arm/mach-rockchip/rk3288-board.c
@@ -16,7 +16,6 @@
 #include <asm/arch-rockchip/qos_rk3288.h>
 #include <asm/arch-rockchip/boot_mode.h>
 #include <asm/gpio.h>
-#include <dm/pinctrl.h>
 #include <dt-bindings/clock/rk3288-cru.h>
 #include <power/regulator.h>
 
@@ -145,33 +144,7 @@
 int board_init(void)
 {
 #if CONFIG_IS_ENABLED(ROCKCHIP_BACK_TO_BROM)
-	struct udevice *pinctrl;
-	int ret;
-
-	/*
-	 * We need to implement sdcard iomux here for the further
-	 * initlization, otherwise, it'll hit sdcard command sending
-	 * timeout exception.
-	 */
-	ret = uclass_get_device(UCLASS_PINCTRL, 0, &pinctrl);
-	if (ret) {
-		debug("%s: Cannot find pinctrl device\n", __func__);
-		goto err;
-	}
-	ret = pinctrl_request_noflags(pinctrl, PERIPH_ID_SDCARD);
-	if (ret) {
-		debug("%s: Failed to set up SD card\n", __func__);
-		goto err;
-	}
-
 	return 0;
-err:
-	printf("board_init: Error %d\n", ret);
-
-	/* No way to report error here */
-	hang();
-
-	return -1;
 #else
 	int ret;