diff --git a/arch/arm/dts/r8a7794-silk-u-boot.dts b/arch/arm/dts/r8a7794-silk-u-boot.dts
index 435cbc1..dcd954e 100644
--- a/arch/arm/dts/r8a7794-silk-u-boot.dts
+++ b/arch/arm/dts/r8a7794-silk-u-boot.dts
@@ -8,3 +8,7 @@
 
 #include "r8a7794-silk.dts"
 #include "r8a7794-u-boot.dtsi"
+
+&scif2 {
+	u-boot,dm-pre-reloc;
+};
diff --git a/arch/arm/mach-rmobile/Kconfig.32 b/arch/arm/mach-rmobile/Kconfig.32
index fe123f8..a8835f6 100644
--- a/arch/arm/mach-rmobile/Kconfig.32
+++ b/arch/arm/mach-rmobile/Kconfig.32
@@ -68,6 +68,9 @@
 	bool "Silk board"
 	select DM
 	select DM_SERIAL
+	select SUPPORT_SPL
+	select USE_TINY_PRINTF
+	select SPL_TINY_MEMSET
 
 config TARGET_PORTER
 	bool "Porter board"
diff --git a/board/renesas/silk/Makefile b/board/renesas/silk/Makefile
index 8916a8d..b5c3ad8 100644
--- a/board/renesas/silk/Makefile
+++ b/board/renesas/silk/Makefile
@@ -7,4 +7,8 @@
 # SPDX-License-Identifier: GPL-2.0
 #
 
-obj-y	:= silk.o qos.o ../rcar-common/common.o
+ifdef CONFIG_SPL_BUILD
+obj-y	:= silk_spl.o
+else
+obj-y	:= silk.o qos.o
+endif
diff --git a/board/renesas/silk/silk.c b/board/renesas/silk/silk.c
index 9e2080b..bfe9909 100644
--- a/board/renesas/silk/silk.c
+++ b/board/renesas/silk/silk.c
@@ -30,7 +30,6 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
-#define CLK2MHZ(clk)	(clk / 1000 / 1000)
 void s_init(void)
 {
 	struct rcar_rwdt *rwdt = (struct rcar_rwdt *)RWDT_BASE;
@@ -44,150 +43,65 @@
 	qos_init();
 }
 
-#define TMU0_MSTP125	(1 << 25)
-#define SCIF2_MSTP719	(1 << 19)
-#define ETHER_MSTP813	(1 << 13)
-#define IIC1_MSTP323	(1 << 23)
-#define MMC0_MSTP315	(1 << 15)
-#define SDHI1_MSTP312	(1 << 12)
+#define TMU0_MSTP125	BIT(25)
+#define MMC0_MSTP315	BIT(15)
 
 #define SD1CKCR		0xE6150078
-#define SD1_97500KHZ	0x7
+#define SD_97500KHZ	0x7
 
 int board_early_init_f(void)
 {
 	/* TMU */
 	mstp_clrbits_le32(MSTPSR1, SMSTPCR1, TMU0_MSTP125);
 
-	/* SCIF2 */
-	mstp_clrbits_le32(MSTPSR7, SMSTPCR7, SCIF2_MSTP719);
+	/* Set SD1 to the 97.5MHz */
+	writel(SD_97500KHZ, SD1CKCR);
 
-	/* ETHER */
-	mstp_clrbits_le32(MSTPSR8, SMSTPCR8, ETHER_MSTP813);
-
-	/* IIC1 / sh-i2c ch1 */
-	mstp_clrbits_le32(MSTPSR3, SMSTPCR3, IIC1_MSTP323);
-
-#ifdef CONFIG_SH_MMCIF
-	/* MMC */
-	mstp_clrbits_le32(MSTPSR3, SMSTPCR3, MMC0_MSTP315);
-#endif
-
-#ifdef CONFIG_SH_SDHI
-	/* SDHI1 */
-	mstp_clrbits_le32(MSTPSR3, SMSTPCR3, SDHI1_MSTP312);
-
-	/*
-	 * Set SD1 to the 97.5MHz
-	 */
-	writel(SD1_97500KHZ, SD1CKCR);
-#endif
 	return 0;
 }
 
-/* LSI pin pull-up control */
-#define PUPR3		0xe606010C
-#define PUPR3_ETH	0x006FF800
-#define PUPR1		0xe6060104
-#define PUPR1_DREQ0_N	(1 << 20)
+#define ETHERNET_PHY_RESET	56	/* GPIO 1 24 */
+
 int board_init(void)
 {
 	/* adress of boot parameters */
 	gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
 
-	/* Init PFC controller */
-	r8a7794_pinmux_init();
-
-	/* Ether Enable */
-	gpio_request(GPIO_FN_ETH_CRS_DV, NULL);
-	gpio_request(GPIO_FN_ETH_RX_ER, NULL);
-	gpio_request(GPIO_FN_ETH_RXD0, NULL);
-	gpio_request(GPIO_FN_ETH_RXD1, NULL);
-	gpio_request(GPIO_FN_ETH_LINK, NULL);
-	gpio_request(GPIO_FN_ETH_REFCLK, NULL);
-	gpio_request(GPIO_FN_ETH_MDIO, NULL);
-	gpio_request(GPIO_FN_ETH_TXD1, NULL);
-	gpio_request(GPIO_FN_ETH_TX_EN, NULL);
-	gpio_request(GPIO_FN_ETH_MAGIC, NULL);
-	gpio_request(GPIO_FN_ETH_TXD0, NULL);
-	gpio_request(GPIO_FN_ETH_MDC, NULL);
-	gpio_request(GPIO_FN_IRQ8, NULL);
-
-	/* PHY reset */
-	mstp_clrbits_le32(PUPR3, PUPR3, PUPR3_ETH);
-	gpio_request(GPIO_GP_1_24, NULL);
-	mstp_clrbits_le32(PUPR1, PUPR1, PUPR1_DREQ0_N);
-
-	gpio_direction_output(GPIO_GP_1_24, 0);
+	/* Force ethernet PHY out of reset */
+	gpio_request(ETHERNET_PHY_RESET, "phy_reset");
+	gpio_direction_output(ETHERNET_PHY_RESET, 0);
 	mdelay(20);
-	gpio_set_value(GPIO_GP_1_24, 1);
+	gpio_direction_output(ETHERNET_PHY_RESET, 1);
 	udelay(1);
 
 	return 0;
 }
 
-#define CXR24 0xEE7003C0 /* MAC address high register */
-#define CXR25 0xEE7003C8 /* MAC address low register */
-int board_eth_init(bd_t *bis)
-{
-#ifdef CONFIG_SH_ETHER
-	int ret = -ENODEV;
-	u32 val;
-	unsigned char enetaddr[6];
-
-	ret = sh_eth_initialize(bis);
-	if (!eth_env_get_enetaddr("ethaddr", enetaddr))
-		return ret;
-
-	/* Set Mac address */
-	val = enetaddr[0] << 24 | enetaddr[1] << 16 |
-		enetaddr[2] << 8 | enetaddr[3];
-	writel(val, CXR24);
-
-	val = enetaddr[4] << 8 | enetaddr[5];
-	writel(val, CXR25);
-
-	return ret;
-#else
-	return 0;
-#endif
-}
-
-int board_mmc_init(bd_t *bis)
-{
-	int ret = -ENODEV;
-
-#ifdef CONFIG_SH_MMCIF
-	/* MMC0 */
-	gpio_request(GPIO_GP_4_31, NULL);
-	gpio_direction_output(GPIO_GP_4_31, 1);
-
-	ret = mmcif_mmc_init();
-#endif
-
-#ifdef CONFIG_SH_SDHI
-	gpio_request(GPIO_FN_SD1_DATA0, NULL);
-	gpio_request(GPIO_FN_SD1_DATA1, NULL);
-	gpio_request(GPIO_FN_SD1_DATA2, NULL);
-	gpio_request(GPIO_FN_SD1_DATA3, NULL);
-	gpio_request(GPIO_FN_SD1_CLK, NULL);
-	gpio_request(GPIO_FN_SD1_CMD, NULL);
-	gpio_request(GPIO_FN_SD1_CD, NULL);
-
-	/* SDHI 1 */
-	gpio_request(GPIO_GP_4_26, NULL);
-	gpio_request(GPIO_GP_4_29, NULL);
-	gpio_direction_output(GPIO_GP_4_26, 1);
-	gpio_direction_output(GPIO_GP_4_29, 1);
-
-	ret = sh_sdhi_init(CONFIG_SYS_SH_SDHI1_BASE, 1, 0);
-#endif
-	return ret;
-}
-
 int dram_init(void)
 {
-	gd->ram_size = CONFIG_SYS_SDRAM_SIZE;
+	if (fdtdec_setup_memory_size() != 0)
+		return -EINVAL;
+
+	return 0;
+}
+
+int dram_init_banksize(void)
+{
+	fdtdec_setup_memory_banksize();
+
+	return 0;
+}
+
+/* porter has KSZ8041RNLI */
+#define PHY_CONTROL1		0x1E
+#define PHY_LED_MODE		0xC0000
+#define PHY_LED_MODE_ACK	0x4000
+int board_phy_config(struct phy_device *phydev)
+{
+	int ret = phy_read(phydev, MDIO_DEVAD_NONE, PHY_CONTROL1);
+	ret &= ~PHY_LED_MODE;
+	ret |= PHY_LED_MODE_ACK;
+	ret = phy_write(phydev, MDIO_DEVAD_NONE, PHY_CONTROL1, (u16)ret);
 
 	return 0;
 }
@@ -198,22 +112,38 @@
 
 void reset_cpu(ulong addr)
 {
-	u8 val;
+	struct udevice *dev;
+	const u8 pmic_bus = 1;
+	const u8 pmic_addr = 0x58;
+	u8 data;
+	int ret;
 
-	i2c_set_bus_num(1); /* PowerIC connected to ch1 */
-	i2c_read(CONFIG_SYS_I2C_POWERIC_ADDR, 0x13, 1, &val, 1);
-	val |= 0x02;
-	i2c_write(CONFIG_SYS_I2C_POWERIC_ADDR, 0x13, 1, &val, 1);
+	ret = i2c_get_chip_for_busnum(pmic_bus, pmic_addr, 1, &dev);
+	if (ret)
+		hang();
+
+	ret = dm_i2c_read(dev, 0x13, &data, 1);
+	if (ret)
+		hang();
+
+	data |= BIT(1);
+
+	ret = dm_i2c_write(dev, 0x13, &data, 1);
+	if (ret)
+		hang();
 }
 
-static const struct sh_serial_platdata serial_platdata = {
-	.base = SCIF2_BASE,
-	.type = PORT_SCIF,
-	.clk = 14745600,
-	.clk_mode = EXT_CLK,
-};
+enum env_location env_get_location(enum env_operation op, int prio)
+{
+	const u32 load_magic = 0xb33fc0de;
 
-U_BOOT_DEVICE(silk_serials) = {
-	.name = "serial_sh",
-	.platdata = &serial_platdata,
-};
+	/* Block environment access if loaded using JTAG */
+	if ((readl(CONFIG_SPL_TEXT_BASE + 0x24) == load_magic) &&
+	    (op != ENVOP_INIT))
+		return ENVL_UNKNOWN;
+
+	if (prio)
+		return ENVL_UNKNOWN;
+
+	return ENVL_SPI_FLASH;
+}
diff --git a/board/renesas/silk/silk_spl.c b/board/renesas/silk/silk_spl.c
new file mode 100644
index 0000000..5309ce9
--- /dev/null
+++ b/board/renesas/silk/silk_spl.c
@@ -0,0 +1,425 @@
+/*
+ * board/renesas/silk/silk_spl.c
+ *
+ * Copyright (C) 2018 Marek Vasut <marek.vasut@gmail.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0
+ */
+
+#include <common.h>
+#include <malloc.h>
+#include <dm/platform_data/serial_sh.h>
+#include <asm/processor.h>
+#include <asm/mach-types.h>
+#include <asm/io.h>
+#include <linux/errno.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/gpio.h>
+#include <asm/arch/rmobile.h>
+#include <asm/arch/rcar-mstp.h>
+
+#include <spl.h>
+
+#define TMU0_MSTP125	BIT(25)
+#define SCIF2_MSTP719	BIT(19)
+#define QSPI_MSTP917	BIT(17)
+
+#define SD1CKCR		0xE6150078
+#define SD_97500KHZ	0x7
+
+struct reg_config {
+	u16	off;
+	u32	val;
+};
+
+static void dbsc_wait(u16 reg)
+{
+	static const u32 dbsc3_0_base = DBSC3_0_BASE;
+
+	while (!(readl(dbsc3_0_base + reg) & BIT(0)))
+		;
+}
+
+static void spl_init_sys(void)
+{
+	u32 r0 = 0;
+
+	writel(0xa5a5a500, 0xe6020004);
+	writel(0xa5a5a500, 0xe6030004);
+
+	asm volatile(
+		/* ICIALLU - Invalidate I$ to PoU */
+		"mcr	15, 0, %0, cr7, cr5, 0	\n"
+		/* BPIALL - Invalidate branch predictors */
+		"mcr	15, 0, %0, cr7, cr5, 6	\n"
+		/* Set SCTLR[IZ] */
+		"mrc	15, 0, %0, cr1, cr0, 0	\n"
+		"orr	%0, #0x1800		\n"
+		"mcr	15, 0, %0, cr1, cr0, 0	\n"
+		"isb	sy			\n"
+		:"=r"(r0));
+}
+
+static void spl_init_pfc(void)
+{
+	static const struct reg_config pfc_with_unlock[] = {
+		{ 0x0090, 0x00018040 },
+		{ 0x0094, 0x00000000 },
+		{ 0x0098, 0x00000000 },
+		{ 0x0020, 0x94000000 },
+		{ 0x0024, 0x00000006 },
+		{ 0x0028, 0x40000000 },
+		{ 0x002c, 0x00000155 },
+		{ 0x0030, 0x00000002 },
+		{ 0x0034, 0x00000000 },
+		{ 0x0038, 0x00000000 },
+		{ 0x003c, 0x00000000 },
+		{ 0x0040, 0x60000000 },
+		{ 0x0044, 0x36dab6db },
+		{ 0x0048, 0x926da012 },
+		{ 0x004c, 0x0008c383 },
+		{ 0x0050, 0x00000000 },
+		{ 0x0054, 0x00000140 },
+		{ 0x0004, 0xffffffff },
+		{ 0x0008, 0x00ec3fff },
+		{ 0x000c, 0x5bffffff },
+		{ 0x0010, 0x01bfe1ff },
+		{ 0x0014, 0x5bffffff },
+		{ 0x0018, 0x0f4b200f },
+		{ 0x001c, 0x03ffffff },
+	};
+
+	static const struct reg_config pfc_without_unlock[] = {
+		{ 0x0100, 0x00000000 },
+		{ 0x0104, 0x4203fdf0 },
+		{ 0x0108, 0x00000000 },
+		{ 0x010c, 0x159007ff },
+		{ 0x0110, 0x80000000 },
+		{ 0x0114, 0x00de481f },
+		{ 0x0118, 0x00000000 },
+	};
+
+	static const struct reg_config pfc_with_unlock2[] = {
+		{ 0x0060, 0xffffffff },
+		{ 0x0064, 0xfffff000 },
+		{ 0x0068, 0x55555500 },
+		{ 0x006c, 0xffffff00 },
+		{ 0x0070, 0x00000000 },
+	};
+
+	static const u32 pfc_base = 0xe6060000;
+
+	unsigned int i;
+
+	for (i = 0; i < ARRAY_SIZE(pfc_with_unlock); i++) {
+		writel(~pfc_with_unlock[i].val, pfc_base);
+		writel(pfc_with_unlock[i].val,
+		       pfc_base | pfc_with_unlock[i].off);
+	}
+
+	for (i = 0; i < ARRAY_SIZE(pfc_without_unlock); i++)
+		writel(pfc_without_unlock[i].val,
+		       pfc_base | pfc_without_unlock[i].off);
+
+	for (i = 0; i < ARRAY_SIZE(pfc_with_unlock2); i++) {
+		writel(~pfc_with_unlock2[i].val, pfc_base);
+		writel(pfc_with_unlock2[i].val,
+		       pfc_base | pfc_with_unlock2[i].off);
+	}
+}
+
+static void spl_init_gpio(void)
+{
+	static const u16 gpio_offs[] = {
+		0x1000, 0x2000, 0x3000, 0x4000
+	};
+
+	static const struct reg_config gpio_set[] = {
+		{ 0x2000, 0x24000000 },
+		{ 0x4000, 0xa4000000 },
+		{ 0x5000, 0x0084c000 },
+	};
+
+	static const struct reg_config gpio_clr[] = {
+		{ 0x1000, 0x01000000 },
+		{ 0x2000, 0x24000000 },
+		{ 0x3000, 0x00000000 },
+		{ 0x4000, 0xa4000000 },
+		{ 0x5000, 0x00044380 },
+	};
+
+	static const u32 gpio_base = 0xe6050000;
+
+	unsigned int i;
+
+	for (i = 0; i < ARRAY_SIZE(gpio_offs); i++)
+		writel(0, gpio_base | 0x20 | gpio_offs[i]);
+	writel(BIT(23), gpio_base | 0x5020);
+
+	for (i = 0; i < ARRAY_SIZE(gpio_offs); i++)
+		writel(0, gpio_base | 0x00 | gpio_offs[i]);
+	writel(BIT(23), gpio_base | 0x5000);
+
+	for (i = 0; i < ARRAY_SIZE(gpio_set); i++)
+		writel(gpio_set[i].val, gpio_base | 0x08 | gpio_set[i].off);
+
+	for (i = 0; i < ARRAY_SIZE(gpio_clr); i++)
+		writel(gpio_clr[i].val, gpio_base | 0x04 | gpio_clr[i].off);
+}
+
+static void spl_init_lbsc(void)
+{
+	static const struct reg_config lbsc_config[] = {
+		{ 0x00, 0x00000020 },
+		{ 0x08, 0x00002020 },
+		{ 0x30, 0x2a103320 },
+		{ 0x38, 0xff70ff70 },
+	};
+
+	static const u16 lbsc_offs[] = {
+		0x80, 0x84, 0x88, 0x8c, 0xa0, 0xc0, 0xc4, 0xc8
+	};
+
+	static const u32 lbsc_base = 0xfec00200;
+
+	unsigned int i;
+
+	for (i = 0; i < ARRAY_SIZE(lbsc_config); i++) {
+		writel(lbsc_config[i].val,
+		       lbsc_base | lbsc_config[i].off);
+		writel(lbsc_config[i].val,
+		       lbsc_base | (lbsc_config[i].off + 4));
+	}
+
+	for (i = 0; i < ARRAY_SIZE(lbsc_offs); i++)
+		writel(0, lbsc_base | lbsc_offs[i]);
+}
+
+static void spl_init_dbsc(void)
+{
+	static const struct reg_config dbsc_config1[] = {
+		{ 0x0018, 0x21000000 },
+		{ 0x0018, 0x11000000 },
+		{ 0x0018, 0x10000000 },
+		{ 0x0280, 0x0000a55a },
+		{ 0x0290, 0x00000001 },
+		{ 0x02a0, 0x80000000 },
+		{ 0x0290, 0x00000004 },
+	};
+
+	static const struct reg_config dbsc_config2[] = {
+		{ 0x0290, 0x00000006 },
+		{ 0x02a0, 0x0005c000 },
+	};
+
+	static const struct reg_config dbsc_config3r2[] = {
+		{ 0x0290, 0x0000000f },
+		{ 0x02a0, 0x00181224 },
+	};
+
+	static const struct reg_config dbsc_config4[] = {
+		{ 0x0290, 0x00000010 },
+		{ 0x02a0, 0xf004649b },
+		{ 0x0290, 0x00000061 },
+		{ 0x02a0, 0x0000006d },
+		{ 0x0290, 0x00000001 },
+		{ 0x02a0, 0x00000073 },
+		{ 0x0020, 0x00000007 },
+		{ 0x0024, 0x0f030a02 },
+		{ 0x0030, 0x00000001 },
+		{ 0x00b0, 0x00000000 },
+		{ 0x0040, 0x00000009 },
+		{ 0x0044, 0x00000007 },
+		{ 0x0048, 0x00000000 },
+		{ 0x0050, 0x00000009 },
+		{ 0x0054, 0x000a0009 },
+		{ 0x0058, 0x00000021 },
+		{ 0x005c, 0x00000018 },
+		{ 0x0060, 0x00000005 },
+		{ 0x0064, 0x00000020 },
+		{ 0x0068, 0x00000007 },
+		{ 0x006c, 0x0000000a },
+		{ 0x0070, 0x00000009 },
+		{ 0x0074, 0x00000010 },
+		{ 0x0078, 0x000000ae },
+		{ 0x007c, 0x00140005 },
+		{ 0x0080, 0x00050004 },
+		{ 0x0084, 0x50213005 },
+		{ 0x0088, 0x000c0000 },
+		{ 0x008c, 0x00000200 },
+		{ 0x0090, 0x00000040 },
+		{ 0x0100, 0x00000001 },
+		{ 0x00c0, 0x00020001 },
+		{ 0x00c8, 0x20042004 },
+		{ 0x0380, 0x00020003 },
+		{ 0x0390, 0x0000001f },
+	};
+
+	static const struct reg_config dbsc_config5[] = {
+		{ 0x0244, 0x00000011 },
+		{ 0x0290, 0x00000003 },
+		{ 0x02a0, 0x0300c4e1 },
+		{ 0x0290, 0x00000023 },
+		{ 0x02a0, 0x00fcb6d0 },
+		{ 0x0290, 0x00000011 },
+		{ 0x02a0, 0x1000040b },
+		{ 0x0290, 0x00000012 },
+		{ 0x02a0, 0x85589955 },
+		{ 0x0290, 0x00000013 },
+		{ 0x02a0, 0x1a852400 },
+		{ 0x0290, 0x00000014 },
+		{ 0x02a0, 0x300210b4 },
+		{ 0x0290, 0x00000015 },
+		{ 0x02a0, 0x00000b50 },
+		{ 0x0290, 0x00000016 },
+		{ 0x02a0, 0x00000006 },
+		{ 0x0290, 0x00000017 },
+		{ 0x02a0, 0x00000010 },
+		{ 0x0290, 0x0000001a },
+		{ 0x02a0, 0x910035c7 },
+		{ 0x0290, 0x00000004 },
+	};
+
+	static const struct reg_config dbsc_config6[] = {
+		{ 0x0290, 0x00000001 },
+		{ 0x02a0, 0x00000181 },
+		{ 0x0018, 0x11000000 },
+		{ 0x0290, 0x00000004 },
+	};
+
+	static const struct reg_config dbsc_config7[] = {
+		{ 0x0290, 0x00000001 },
+		{ 0x02a0, 0x0000fe01 },
+		{ 0x0304, 0x00000000 },
+		{ 0x00f4, 0x01004c20 },
+		{ 0x00f8, 0x012c00be },
+		{ 0x00e0, 0x00000140 },
+		{ 0x00e4, 0x00081450 },
+		{ 0x00e8, 0x00010000 },
+		{ 0x0290, 0x00000004 },
+	};
+
+	static const struct reg_config dbsc_config8[] = {
+		{ 0x0014, 0x00000001 },
+		{ 0x0290, 0x00000010 },
+		{ 0x02a0, 0xf00464db },
+		{ 0x0010, 0x00000001 },
+		{ 0x0280, 0x00000000 },
+	};
+
+	static const u32 dbsc3_0_base = DBSC3_0_BASE;
+	unsigned int i;
+
+	for (i = 0; i < ARRAY_SIZE(dbsc_config1); i++)
+		writel(dbsc_config1[i].val, dbsc3_0_base | dbsc_config1[i].off);
+
+	dbsc_wait(0x2a0);
+
+	for (i = 0; i < ARRAY_SIZE(dbsc_config2); i++)
+		writel(dbsc_config2[i].val, dbsc3_0_base | dbsc_config2[i].off);
+
+	for (i = 0; i < ARRAY_SIZE(dbsc_config3r2); i++) {
+		writel(dbsc_config3r2[i].val,
+			dbsc3_0_base | dbsc_config3r2[i].off);
+	}
+
+	for (i = 0; i < ARRAY_SIZE(dbsc_config4); i++)
+		writel(dbsc_config4[i].val, dbsc3_0_base | dbsc_config4[i].off);
+
+	dbsc_wait(0x240);
+
+	for (i = 0; i < ARRAY_SIZE(dbsc_config5); i++)
+		writel(dbsc_config5[i].val, dbsc3_0_base | dbsc_config5[i].off);
+
+	dbsc_wait(0x2a0);
+
+	for (i = 0; i < ARRAY_SIZE(dbsc_config6); i++)
+		writel(dbsc_config6[i].val, dbsc3_0_base | dbsc_config6[i].off);
+
+	dbsc_wait(0x2a0);
+
+	for (i = 0; i < ARRAY_SIZE(dbsc_config7); i++)
+		writel(dbsc_config7[i].val, dbsc3_0_base | dbsc_config7[i].off);
+
+	dbsc_wait(0x2a0);
+
+	for (i = 0; i < ARRAY_SIZE(dbsc_config8); i++)
+		writel(dbsc_config8[i].val, dbsc3_0_base | dbsc_config8[i].off);
+
+}
+
+static void spl_init_qspi(void)
+{
+	mstp_clrbits_le32(MSTPSR9, SMSTPCR9, QSPI_MSTP917);
+
+	static const u32 qspi_base = 0xe6b10000;
+
+	writeb(0x08, qspi_base + 0x00);
+	writeb(0x00, qspi_base + 0x01);
+	writeb(0x06, qspi_base + 0x02);
+	writeb(0x01, qspi_base + 0x0a);
+	writeb(0x00, qspi_base + 0x0b);
+	writeb(0x00, qspi_base + 0x0c);
+	writeb(0x00, qspi_base + 0x0d);
+	writeb(0x00, qspi_base + 0x0e);
+
+	writew(0xe080, qspi_base + 0x10);
+
+	writeb(0xc0, qspi_base + 0x18);
+	writeb(0x00, qspi_base + 0x18);
+	writeb(0x00, qspi_base + 0x08);
+	writeb(0x48, qspi_base + 0x00);
+}
+
+void board_init_f(ulong dummy)
+{
+	mstp_clrbits_le32(MSTPSR1, SMSTPCR1, TMU0_MSTP125);
+	mstp_clrbits_le32(MSTPSR7, SMSTPCR7, SCIF2_MSTP719);
+
+	/* Set SD1 to the 97.5MHz */
+	writel(SD_97500KHZ, SD1CKCR);
+
+	spl_init_sys();
+	spl_init_pfc();
+	spl_init_gpio();
+	spl_init_lbsc();
+	spl_init_dbsc();
+	spl_init_qspi();
+}
+
+void spl_board_init(void)
+{
+	/* UART clocks enabled and gd valid - init serial console */
+	preloader_console_init();
+}
+
+void board_boot_order(u32 *spl_boot_list)
+{
+	const u32 jtag_magic = 0x1337c0de;
+	const u32 load_magic = 0xb33fc0de;
+
+	/*
+	 * If JTAG probe sets special word at 0xe6300020, then it must
+	 * put U-Boot into RAM and SPL will start it from RAM.
+	 */
+	if (readl(CONFIG_SPL_TEXT_BASE + 0x20) == jtag_magic) {
+		printf("JTAG boot detected!\n");
+
+		while (readl(CONFIG_SPL_TEXT_BASE + 0x24) != load_magic)
+			;
+
+		spl_boot_list[0] = BOOT_DEVICE_RAM;
+		spl_boot_list[1] = BOOT_DEVICE_NONE;
+
+		return;
+	}
+
+	/* Boot from SPI NOR with YMODEM UART fallback. */
+	spl_boot_list[0] = BOOT_DEVICE_SPI;
+	spl_boot_list[1] = BOOT_DEVICE_UART;
+	spl_boot_list[2] = BOOT_DEVICE_NONE;
+}
+
+void reset_cpu(ulong addr)
+{
+}
diff --git a/configs/silk_defconfig b/configs/silk_defconfig
index 5538186..309935d 100644
--- a/configs/silk_defconfig
+++ b/configs/silk_defconfig
@@ -1,17 +1,37 @@
 CONFIG_ARM=y
+CONFIG_ENABLE_ARM_SOC_BOOT0_HOOK=y
+# CONFIG_SPL_USE_ARCH_MEMCPY is not set
+# CONFIG_SPL_USE_ARCH_MEMSET is not set
 CONFIG_ARCH_RMOBILE=y
-CONFIG_SYS_TEXT_BASE=0xE6304000
-CONFIG_SYS_MALLOC_F_LEN=0x2000
+CONFIG_SYS_TEXT_BASE=0x50000000
+CONFIG_SPL_LIBCOMMON_SUPPORT=y
+CONFIG_SPL_LIBGENERIC_SUPPORT=y
+CONFIG_SYS_MALLOC_F_LEN=0x8000
 CONFIG_R8A7794=y
 CONFIG_TARGET_SILK=y
+CONFIG_SPL_SERIAL_SUPPORT=y
+CONFIG_SPL_SPI_FLASH_SUPPORT=y
+CONFIG_SPL_SPI_SUPPORT=y
+CONFIG_SPL=y
 CONFIG_DEFAULT_DEVICE_TREE="r8a7794-silk-u-boot"
+CONFIG_SPL_SYS_MALLOC_F_LEN=0x2000
+CONFIG_FIT=y
 CONFIG_BOOTDELAY=3
 CONFIG_VERSION_VARIABLE=y
+CONFIG_SPL_BOARD_INIT=y
+CONFIG_SPL_SYS_MALLOC_SIMPLE=y
+CONFIG_SPL_RAM_SUPPORT=y
+CONFIG_SPL_RAM_DEVICE=y
+CONFIG_SPL_SPI_LOAD=y
+CONFIG_SPL_YMODEM_SUPPORT=y
+CONFIG_HUSH_PARSER=y
 CONFIG_CMD_BOOTZ=y
 # CONFIG_CMD_IMI is not set
 # CONFIG_CMD_XIMG is not set
+CONFIG_CMD_GPIO=y
 CONFIG_CMD_I2C=y
 CONFIG_CMD_MMC=y
+CONFIG_CMD_PCI=y
 CONFIG_CMD_SDRAM=y
 CONFIG_CMD_SF=y
 CONFIG_CMD_SPI=y
@@ -19,22 +39,43 @@
 CONFIG_CMD_DHCP=y
 CONFIG_CMD_MII=y
 CONFIG_CMD_PING=y
+CONFIG_CMD_CACHE=y
+CONFIG_CMD_TIME=y
 CONFIG_CMD_EXT2=y
 CONFIG_CMD_EXT4=y
 CONFIG_CMD_EXT4_WRITE=y
 CONFIG_CMD_FAT=y
 CONFIG_OF_CONTROL=y
+CONFIG_OF_EMBED=y
 CONFIG_ENV_IS_IN_SPI_FLASH=y
+CONFIG_CLK=y
+CONFIG_CLK_RENESAS=y
+CONFIG_DM_GPIO=y
+CONFIG_RCAR_GPIO=y
+CONFIG_DM_I2C=y
+CONFIG_SYS_I2C_RCAR_IIC=y
+CONFIG_DM_MMC=y
 CONFIG_SH_MMCIF=y
+CONFIG_RENESAS_SDHI=y
 CONFIG_SPI_FLASH=y
 CONFIG_SPI_FLASH_BAR=y
 CONFIG_SPI_FLASH_SPANSION=y
 CONFIG_PHY_MICREL=y
-CONFIG_NETDEVICES=y
+CONFIG_DM_ETH=y
 CONFIG_SH_ETHER=y
-CONFIG_BAUDRATE=38400
+CONFIG_PCI=y
+CONFIG_DM_PCI=y
+CONFIG_PCI_RCAR_GEN2=y
+CONFIG_PINCTRL=y
+CONFIG_PINCONF=y
+CONFIG_PINCTRL_PFC=y
+CONFIG_DM_REGULATOR=y
+CONFIG_DM_REGULATOR_FIXED=y
+CONFIG_DM_REGULATOR_GPIO=y
 CONFIG_SCIF_CONSOLE=y
 CONFIG_SH_QSPI=y
 CONFIG_USB=y
+CONFIG_DM_USB=y
 CONFIG_USB_EHCI_HCD=y
+CONFIG_USB_EHCI_PCI=y
 CONFIG_USB_STORAGE=y
diff --git a/include/configs/silk.h b/include/configs/silk.h
index ba49c19..5f351b5 100644
--- a/include/configs/silk.h
+++ b/include/configs/silk.h
@@ -16,12 +16,8 @@
 
 #include "rcar-gen2-common.h"
 
-#if defined(CONFIG_ARCH_RMOBILE_EXTRAM_BOOT)
-#define CONFIG_SYS_INIT_SP_ADDR		0x7003FFFC
-#else
-#define CONFIG_SYS_INIT_SP_ADDR		0xE633FFFC
-#endif
-#define STACK_AREA_SIZE			0xC000
+#define CONFIG_SYS_INIT_SP_ADDR		0x4f000000
+#define STACK_AREA_SIZE			0x00100000
 #define LOW_LEVEL_MERAM_STACK \
 		(CONFIG_SYS_INIT_SP_ADDR + STACK_AREA_SIZE - 4)
 
@@ -49,45 +45,22 @@
 /* Board Clock */
 #define RMOBILE_XTAL_CLK	20000000u
 #define CONFIG_SYS_CLK_FREQ	RMOBILE_XTAL_CLK
-#define CONFIG_SH_TMU_CLK_FREQ	(CONFIG_SYS_CLK_FREQ / 2) /* EXT / 2 */
-#define CONFIG_PLL1_CLK_FREQ	(CONFIG_SYS_CLK_FREQ * 156 / 2)
-#define CONFIG_P_CLK_FREQ	(CONFIG_PLL1_CLK_FREQ / 24)
+#define CONFIG_SH_TMU_CLK_FREQ	(CONFIG_SYS_CLK_FREQ / 2)
 
-#define CONFIG_SYS_TMU_CLK_DIV  4
+#define CONFIG_SYS_TMU_CLK_DIV	4
 
-/* i2c */
-#define CONFIG_SYS_I2C
-#define CONFIG_SYS_I2C_SH
-#define CONFIG_SYS_I2C_SLAVE		0x7F
-#define CONFIG_SYS_I2C_SH_NUM_CONTROLLERS	3
-#define CONFIG_SYS_I2C_SH_SPEED0	400000
-#define CONFIG_SYS_I2C_SH_SPEED1	400000
-#define CONFIG_SYS_I2C_SH_SPEED2	400000
-#define CONFIG_SH_I2C_DATA_HIGH		4
-#define CONFIG_SH_I2C_DATA_LOW		5
-#define CONFIG_SH_I2C_CLOCK		10000000
+#define CONFIG_EXTRA_ENV_SETTINGS	\
+	"fdt_high=0xffffffff\0"		\
+	"initrd_high=0xffffffff\0"
 
-#define CONFIG_SYS_I2C_POWERIC_ADDR	0x58 /* da9063 */
-
-/* USB */
-#define CONFIG_USB_EHCI_RMOBILE
-#define CONFIG_USB_MAX_CONTROLLER_COUNT	2
-
-/* MMCIF */
-#define CONFIG_SH_MMCIF_ADDR	0xee200000
-#define CONFIG_SH_MMCIF_CLK	48000000
-
-/* SDHI */
-#define CONFIG_SH_SDHI_FREQ	97500000
-
-/* Module stop status bits */
-/* INTC-RT */
-#define CONFIG_SMSTP0_ENA	0x00400000
-/* MSIF */
-#define CONFIG_SMSTP2_ENA	0x00002000
-/* INTC-SYS, IRQC */
-#define CONFIG_SMSTP4_ENA	0x00000180
-/* SCIF2 */
-#define CONFIG_SMSTP7_ENA	0x00080000
+/* SPL support */
+#define CONFIG_SPL_TEXT_BASE		0xe6300000
+#define CONFIG_SPL_STACK		0xe6340000
+#define CONFIG_SPL_MAX_SIZE		0x4000
+#define CONFIG_SYS_SPI_U_BOOT_OFFS	0x140000
+#ifdef CONFIG_SPL_BUILD
+#define CONFIG_CONS_SCIF2
+#define CONFIG_SH_SCIF_CLK_FREQ		65000000
+#endif
 
 #endif /* __SILK_H */