[PATCH] rockchip: rk3308: Drop unused rk_board_init()

[Jonas Karlman]

Nothing is calling the function rk_board_init() and the io-domain driver
can handle the functions intended purpose based on information from DT.

Cleanup by removing the unused rk_board_init() function and re-sort
included headers.

Signed-off-by: Jonas Karlman <jonas at kwiboo.se>
---
 arch/arm/mach-rockchip/rk3308/rk3308.c | 69 +-------------------------
 1 file changed, 1 insertion(+), 68 deletions(-)

diff --git a/arch/arm/mach-rockchip/rk3308/rk3308.c b/arch/arm/mach-rockchip/rk3308/rk3308.c
index 03d97e1d7460..6916f1a24441 100644
--- a/arch/arm/mach-rockchip/rk3308/rk3308.c
+++ b/arch/arm/mach-rockchip/rk3308/rk3308.c
@@ -3,15 +3,12 @@
  *Copyright (c) 2018 Rockchip Electronics Co., Ltd
  */
 #include <init.h>
-#include <malloc.h>
+#include <asm/armv8/mmu.h>
 #include <asm/arch-rockchip/bootrom.h>
 #include <asm/arch-rockchip/grf_rk3308.h>
 #include <asm/arch-rockchip/hardware.h>
-#include <asm/gpio.h>
-#include <debug_uart.h>
 #include <linux/bitops.h>
 
-#include <asm/armv8/mmu.h>
 static struct mm_region rk3308_mem_map[] = {
 	{
 		.virt = 0x0UL,
@@ -38,22 +35,6 @@ struct mm_region *mem_map = rk3308_mem_map;
 #define SGRF_BASE	0xff2b0000
 
 enum {
-	GPIO1C7_SHIFT		= 8,
-	GPIO1C7_MASK		= GENMASK(11, 8),
-	GPIO1C7_GPIO		= 0,
-	GPIO1C7_UART1_RTSN,
-	GPIO1C7_UART2_TX_M0,
-	GPIO1C7_SPI2_MOSI,
-	GPIO1C7_JTAG_TMS,
-
-	GPIO1C6_SHIFT		= 4,
-	GPIO1C6_MASK		= GENMASK(7, 4),
-	GPIO1C6_GPIO		= 0,
-	GPIO1C6_UART1_CTSN,
-	GPIO1C6_UART2_RX_M0,
-	GPIO1C6_SPI2_MISO,
-	GPIO1C6_JTAG_TCLK,
-
 	GPIO4D3_SHIFT           = 6,
 	GPIO4D3_MASK            = GENMASK(7, 6),
 	GPIO4D3_GPIO            = 0,
@@ -116,60 +97,12 @@ enum {
 	GPIO2A2_SEL_SRC_CTRL_SEL_PLUS	= 1,
 };
 
-enum {
-	IOVSEL3_CTRL_SHIFT	= 8,
-	IOVSEL3_CTRL_MASK	= BIT(8),
-	VCCIO3_SEL_BY_GPIO	= 0,
-	VCCIO3_SEL_BY_IOVSEL3,
-
-	IOVSEL3_SHIFT		= 3,
-	IOVSEL3_MASK		= BIT(3),
-	VCCIO3_3V3		= 0,
-	VCCIO3_1V8,
-};
-
-/*
- * The voltage of VCCIO3(which is the voltage domain of emmc/flash/sfc
- * interface) can indicated by GPIO0_A4 or io_vsel3. The SOC defaults
- * use GPIO0_A4 to indicate power supply voltage for VCCIO3 by hardware,
- * then we can switch to io_vsel3 after system power on, and release GPIO0_A4
- * for other usage.
- */
-
-#define GPIO0_A4	4
-
 const char * const boot_devices[BROM_LAST_BOOTSOURCE + 1] = {
 	[BROM_BOOTSOURCE_EMMC] = "/mmc at ff490000",
 	[BROM_BOOTSOURCE_SPINOR] = "/spi at ff4c0000/flash at 0",
 	[BROM_BOOTSOURCE_SD] = "/mmc at ff480000",
 };
 
-int rk_board_init(void)
-{
-	static struct rk3308_grf * const grf = (void *)GRF_BASE;
-	u32 val;
-	int ret;
-
-	ret = gpio_request(GPIO0_A4, "gpio0_a4");
-	if (ret < 0) {
-		printf("request for gpio0_a4 failed:%d\n", ret);
-		return 0;
-	}
-
-	gpio_direction_input(GPIO0_A4);
-
-	if (gpio_get_value(GPIO0_A4))
-		val = VCCIO3_SEL_BY_IOVSEL3 << IOVSEL3_CTRL_SHIFT |
-		      VCCIO3_1V8 << IOVSEL3_SHIFT;
-	else
-		val = VCCIO3_SEL_BY_IOVSEL3 << IOVSEL3_CTRL_SHIFT |
-		      VCCIO3_3V3 << IOVSEL3_SHIFT;
-	rk_clrsetreg(&grf->soc_con0, IOVSEL3_CTRL_MASK | IOVSEL3_MASK, val);
-
-	gpio_free(GPIO0_A4);
-	return 0;
-}
-
 #ifdef CONFIG_DEBUG_UART_BOARD_INIT
 __weak void board_debug_uart_init(void)
 {
-- 
2.46.2