diff --git a/arch/arm/mach-rockchip/Kconfig b/arch/arm/mach-rockchip/Kconfig
index aef1a45..d3bddb7 100644
--- a/arch/arm/mach-rockchip/Kconfig
+++ b/arch/arm/mach-rockchip/Kconfig
@@ -17,21 +17,6 @@
 	  and video codec support. Peripherals include Gigabit Ethernet,
 	  USB2 host and OTG, SDIO, I2S, UART, SPI, I2C and PWMs.
 
-config ROCKCHIP_SPL_HDR
-	string "Header of rockchip's spl loader"
-	help
-	  Rockchip's bootrom requires the spl loader to start with a 4-bytes
-	  header. The content of this header depends on the chip type.
-
-config ROCKCHIP_MAX_SPL_SIZE
-	hex "Max size of rockchip's spl loader"
-	help
-	  Different chip may have different sram size. And if we want to jump
-	  back to the bootrom after spl, we may need to reserve some sram space
-	  for the bootrom.
-	  The max spl loader size should be sram size minus reserved
-	  size(if needed)
-
 config SYS_MALLOC_F
 	default y
 
diff --git a/arch/arm/mach-rockchip/rk3036/Kconfig b/arch/arm/mach-rockchip/rk3036/Kconfig
index 95fb2b9..cc03808 100644
--- a/arch/arm/mach-rockchip/rk3036/Kconfig
+++ b/arch/arm/mach-rockchip/rk3036/Kconfig
@@ -3,21 +3,19 @@
 config TARGET_EVB_RK3036
 	bool "EVB_RK3036"
 
+config TARGET_KYLIN_RK3036
+	bool "KYLIN_RK3036"
+
 config SYS_SOC
 	default "rockchip"
 
 config SYS_MALLOC_F_LEN
 	default 0x400
 
-config ROCKCHIP_SPL_HDR
-        default "RK30"
-
-config ROCKCHIP_MAX_SPL_SIZE
-        default 0x1000
-
 config ROCKCHIP_COMMON
 	bool "Support rk common fuction"
 
 source "board/evb_rk3036/evb_rk3036/Kconfig"
+source "board/kylin/kylin_rk3036/Kconfig"
 
 endif
diff --git a/arch/arm/mach-rockchip/rk3036/sdram_rk3036.c b/arch/arm/mach-rockchip/rk3036/sdram_rk3036.c
index 7a05e31..e3ca870 100644
--- a/arch/arm/mach-rockchip/rk3036/sdram_rk3036.c
+++ b/arch/arm/mach-rockchip/rk3036/sdram_rk3036.c
@@ -701,15 +701,19 @@
 static void sdram_all_config(struct rk3036_sdram_priv *priv)
 {
 	u32 os_reg = 0;
+	u32 cs1_row = 0;
 	struct rk3036_ddr_config config = priv->ddr_config;
 
+	if (config.rank > 1)
+		cs1_row = config.cs1_row - 13;
+
 	os_reg = config.ddr_type << DDR_TYPE_SHIFT |
 			0 << DDR_CHN_CNT_SHIFT |
 			(config.rank - 1) << DDR_RANK_CNT_SHIFT |
 			(config.col - 1) << DDR_COL_SHIFT |
 			(config.bank == 3 ? 0 : 1) << DDR_BANK_SHIFT |
 			(config.cs0_row - 13) << DDR_CS0_ROW_SHIFT |
-			(config.cs1_row - 13) << DDR_CS1_ROW_SHIFT |
+			cs1_row << DDR_CS1_ROW_SHIFT |
 			1 << DDR_BW_SHIFT | config.bw << DDR_DIE_BW_SHIFT;
 	writel(os_reg, &priv->grf->os_reg[1]);
 }
diff --git a/arch/arm/mach-rockchip/rk3288/Kconfig b/arch/arm/mach-rockchip/rk3288/Kconfig
index 3de3878..d0a7276 100644
--- a/arch/arm/mach-rockchip/rk3288/Kconfig
+++ b/arch/arm/mach-rockchip/rk3288/Kconfig
@@ -16,12 +16,6 @@
 	  WiFi. It includes a Chrome OS EC (Cortex-M3) to provide access to
 	  the keyboard and battery functions.
 
-config ROCKCHIP_SPL_HDR
-	default "RK32"
-
-config ROCKCHIP_MAX_SPL_SIZE
-	default 0x8000
-
 config SYS_SOC
 	default "rockchip"
 
diff --git a/board/kylin/kylin_rk3036/Kconfig b/board/kylin/kylin_rk3036/Kconfig
new file mode 100644
index 0000000..5d75c1f
--- /dev/null
+++ b/board/kylin/kylin_rk3036/Kconfig
@@ -0,0 +1,15 @@
+if TARGET_KYLIN_RK3036
+
+config SYS_BOARD
+	default "kylin_rk3036"
+
+config SYS_VENDOR
+	default "kylin"
+
+config SYS_CONFIG_NAME
+	default "kylin_rk3036"
+
+config BOARD_SPECIFIC_OPTIONS # dummy
+	def_bool y
+
+endif
diff --git a/board/kylin/kylin_rk3036/MAINTAINERS b/board/kylin/kylin_rk3036/MAINTAINERS
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/board/kylin/kylin_rk3036/MAINTAINERS
diff --git a/board/kylin/kylin_rk3036/Makefile b/board/kylin/kylin_rk3036/Makefile
new file mode 100644
index 0000000..0663270
--- /dev/null
+++ b/board/kylin/kylin_rk3036/Makefile
@@ -0,0 +1,7 @@
+#
+# (C) Copyright 2015 Google, Inc
+#
+# SPDX-License-Identifier:     GPL-2.0+
+#
+
+obj-y	+= kylin_rk3036.o
diff --git a/board/kylin/kylin_rk3036/kylin_rk3036.c b/board/kylin/kylin_rk3036/kylin_rk3036.c
new file mode 100644
index 0000000..40d6b52
--- /dev/null
+++ b/board/kylin/kylin_rk3036/kylin_rk3036.c
@@ -0,0 +1,49 @@
+/*
+ * (C) Copyright 2015 Rockchip Electronics Co., Ltd
+ *
+ * SPDX-License-Identifier:     GPL-2.0+
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <asm/io.h>
+#include <asm/arch/uart.h>
+#include <asm/arch/sdram_rk3036.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+void get_ddr_config(struct rk3036_ddr_config *config)
+{
+	/* K4B4G1646Q config */
+	config->ddr_type = 3;
+	config->rank = 1;
+	config->cs0_row = 15;
+	config->cs1_row = 15;
+
+	/* 8bank */
+	config->bank = 3;
+	config->col = 10;
+
+	/* 16bit bw */
+	config->bw = 1;
+}
+
+int board_init(void)
+{
+	return 0;
+}
+
+int dram_init(void)
+{
+	gd->ram_size = sdram_size();
+
+	return 0;
+}
+
+#ifndef CONFIG_SYS_DCACHE_OFF
+void enable_caches(void)
+{
+	/* Enable D-cache. I-cache is already enabled in start.S */
+	dcache_enable();
+}
+#endif
diff --git a/common/spl/spl.c b/common/spl/spl.c
index 7a393dc..6e6dee7 100644
--- a/common/spl/spl.c
+++ b/common/spl/spl.c
@@ -452,7 +452,7 @@
 #ifdef CONFIG_SPL_SYS_MALLOC_SIMPLE
 	if (CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN) {
 		if (!(gd->flags & GD_FLG_SPL_INIT))
-			panic("spl_init must be called before heap reloc");
+			panic_str("spl_init must be called before heap reloc");
 
 		ptr -= CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN;
 		gd->malloc_base = ptr;
diff --git a/configs/firefly-rk3288_defconfig b/configs/firefly-rk3288_defconfig
index b645af5..be4ca88 100644
--- a/configs/firefly-rk3288_defconfig
+++ b/configs/firefly-rk3288_defconfig
@@ -42,5 +42,6 @@
 CONFIG_DEBUG_UART_SHIFT=2
 CONFIG_SYS_NS16550=y
 CONFIG_USE_PRIVATE_LIBGCC=y
+CONFIG_USE_TINY_PRINTF=y
 CONFIG_CMD_DHRYSTONE=y
 CONFIG_ERRNO_STR=y
diff --git a/configs/kylin-rk3036_defconfig b/configs/kylin-rk3036_defconfig
new file mode 100644
index 0000000..60cdebf
--- /dev/null
+++ b/configs/kylin-rk3036_defconfig
@@ -0,0 +1,26 @@
+CONFIG_ARM=y
+CONFIG_ARCH_ROCKCHIP=y
+CONFIG_ROCKCHIP_RK3036=y
+CONFIG_TARGET_KYLIN_RK3036=y
+CONFIG_DEFAULT_DEVICE_TREE="rk3036-sdk"
+CONFIG_SPL_STACK_R=y
+CONFIG_SPL_STACK_R_ADDR=0x80000
+# CONFIG_CMD_IMLS is not set
+# CONFIG_CMD_SETEXPR is not set
+CONFIG_CMD_PMIC=y
+CONFIG_CMD_REGULATOR=y
+CONFIG_CLK=y
+CONFIG_REGMAP=y
+CONFIG_SYSCON=y
+CONFIG_RESET=y
+CONFIG_LED=y
+CONFIG_SYS_I2C_ROCKCHIP=y
+CONFIG_PINCTRL=y
+CONFIG_ROCKCHIP_DWMMC=y
+CONFIG_ROCKCHIP_3036_PINCTRL=y
+CONFIG_ROCKCHIP_GPIO=y
+CONFIG_RAM=y
+CONFIG_DM_MMC=y
+CONFIG_USE_PRIVATE_LIBGCC=y
+CONFIG_CMD_DHRYSTONE=y
+CONFIG_ERRNO_STR=y
diff --git a/doc/README.rockchip b/doc/README.rockchip
index 874441c..b455f6f 100644
--- a/doc/README.rockchip
+++ b/doc/README.rockchip
@@ -71,7 +71,7 @@
 
 To create a suitable image and write it to the board:
 
-   ./firefly-rk3288/tools/mkimage -T rkimage -d \
+   ./firefly-rk3288/tools/mkimage -n rk3288 -T rkimage -d \
 	./firefly-rk3288/spl/u-boot-spl-dtb.bin out && \
    cat out | openssl rc4 -K 7c4e0304550509072d2c7b38170d1711 | rkflashtool l
 
@@ -94,7 +94,7 @@
 
 To write an image that boots from an SD card (assumed to be /dev/sdc):
 
-   ./firefly-rk3288/tools/mkimage -T rksd -d \
+   ./firefly-rk3288/tools/mkimage -n rk3288 -T rksd -d \
 	firefly-rk3288/spl/u-boot-spl-dtb.bin out && \
    sudo dd if=out of=/dev/sdc seek=64 && \
    sudo dd if=firefly-rk3288/u-boot-dtb.img of=/dev/sdc seek=256
@@ -123,7 +123,7 @@
    =>
 
 For evb_rk3036 board:
-	./evb-rk3036/tools/mkimage -T rksd  -d evb-rk3036/spl/u-boot-spl.bin out && \
+	./evb-rk3036/tools/mkimage -n rk3036 -T rksd  -d evb-rk3036/spl/u-boot-spl.bin out && \
 	cat evb-rk3036/u-boot-dtb.bin >> out && \
 	sudo dd if=out of=/dev/sdc seek=64
 
@@ -135,7 +135,7 @@
 
 To write an image that boots from SPI flash (e.g. for the Haier Chromebook):
 
-   ./chromebook_jerry/tools/mkimage -T rkspi -d chromebook_jerry/spl/u-boot-spl-dtb.bin out
+   ./chromebook_jerry/tools/mkimage -n rk3036 -T rkspi -d chromebook_jerry/spl/u-boot-spl-dtb.bin out
    dd if=spl.bin of=out.bin bs=128K conv=sync
    cat chromebook_jerry/u-boot-dtb.img out.bin
    dd if=out.bin of=out.bin.pad bs=4M conv=sync
diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
index 2a58702..3a34028 100644
--- a/drivers/mmc/mmc.c
+++ b/drivers/mmc/mmc.c
@@ -1469,7 +1469,9 @@
 	mmc->block_dev.blksz = mmc->read_bl_len;
 	mmc->block_dev.log2blksz = LOG2(mmc->block_dev.blksz);
 	mmc->block_dev.lba = lldiv(mmc->capacity, mmc->read_bl_len);
-#if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT)
+#if !defined(CONFIG_SPL_BUILD) || \
+		(defined(CONFIG_SPL_LIBCOMMON_SUPPORT) && \
+		!defined(CONFIG_USE_TINY_PRINTF))
 	sprintf(mmc->block_dev.vendor, "Man %06x Snr %04x%04x",
 		mmc->cid[0] >> 24, (mmc->cid[2] & 0xffff),
 		(mmc->cid[3] >> 16) & 0xffff);
diff --git a/include/configs/kylin_rk3036.h b/include/configs/kylin_rk3036.h
new file mode 100644
index 0000000..aa07889
--- /dev/null
+++ b/include/configs/kylin_rk3036.h
@@ -0,0 +1,12 @@
+/*
+ * (C) Copyright 2015 Rockchip Electronics Co., Ltd
+ *
+ * SPDX-License-Identifier:     GPL-2.0+
+ */
+
+#ifndef __CONFIG_H
+#define __CONFIG_H
+
+#include <configs/rk3036_common.h>
+
+#endif
diff --git a/lib/Makefile b/lib/Makefile
index 1f1ff6f..dd36f25 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -85,13 +85,13 @@
 ifdef CONFIG_SPL_BUILD
 # SPL U-Boot may use full-printf, tiny-printf or none at all
 ifdef CONFIG_USE_TINY_PRINTF
-obj-$(CONFIG_SPL_SERIAL_SUPPORT) += tiny-printf.o
+obj-$(CONFIG_SPL_SERIAL_SUPPORT) += tiny-printf.o panic.o strto.o
 else
-obj-$(CONFIG_SPL_SERIAL_SUPPORT) += vsprintf.o
+obj-$(CONFIG_SPL_SERIAL_SUPPORT) += vsprintf.o panic.o strto.o
 endif
 else
 # Main U-Boot always uses the full printf support
-obj-y += vsprintf.o
+obj-y += vsprintf.o panic.o strto.o
 endif
 
 subdir-ccflags-$(CONFIG_CC_OPTIMIZE_LIBS_FOR_SPEED) += -O2
diff --git a/lib/panic.c b/lib/panic.c
new file mode 100644
index 0000000..e2b8b74
--- /dev/null
+++ b/lib/panic.c
@@ -0,0 +1,45 @@
+/*
+ *  linux/lib/vsprintf.c
+ *
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ */
+
+/* vsprintf.c -- Lars Wirzenius & Linus Torvalds. */
+/*
+ * Wirzenius wrote this portably, Torvalds fucked it up :-)
+ */
+
+#include <common.h>
+#if !defined(CONFIG_PANIC_HANG)
+#include <command.h>
+#endif
+
+static void panic_finish(void) __attribute__ ((noreturn));
+
+static void panic_finish(void)
+{
+	putc('\n');
+#if defined(CONFIG_PANIC_HANG)
+	hang();
+#else
+	udelay(100000);	/* allow messages to go out */
+	do_reset(NULL, 0, 0, NULL);
+#endif
+	while (1)
+		;
+}
+
+void panic_str(const char *str)
+{
+	puts(str);
+	panic_finish();
+}
+
+void panic(const char *fmt, ...)
+{
+	va_list args;
+	va_start(args, fmt);
+	vprintf(fmt, args);
+	va_end(args);
+	panic_finish();
+}
diff --git a/lib/strto.c b/lib/strto.c
new file mode 100644
index 0000000..a6c0157
--- /dev/null
+++ b/lib/strto.c
@@ -0,0 +1,174 @@
+/*
+ *  linux/lib/vsprintf.c
+ *
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ */
+
+/* vsprintf.c -- Lars Wirzenius & Linus Torvalds. */
+/*
+ * Wirzenius wrote this portably, Torvalds fucked it up :-)
+ */
+
+#include <common.h>
+#include <errno.h>
+#include <linux/ctype.h>
+
+unsigned long simple_strtoul(const char *cp, char **endp,
+				unsigned int base)
+{
+	unsigned long result = 0;
+	unsigned long value;
+
+	if (*cp == '0') {
+		cp++;
+		if ((*cp == 'x') && isxdigit(cp[1])) {
+			base = 16;
+			cp++;
+		}
+
+		if (!base)
+			base = 8;
+	}
+
+	if (!base)
+		base = 10;
+
+	while (isxdigit(*cp) && (value = isdigit(*cp) ? *cp-'0' : (islower(*cp)
+	    ? toupper(*cp) : *cp)-'A'+10) < base) {
+		result = result*base + value;
+		cp++;
+	}
+
+	if (endp)
+		*endp = (char *)cp;
+
+	return result;
+}
+
+int strict_strtoul(const char *cp, unsigned int base, unsigned long *res)
+{
+	char *tail;
+	unsigned long val;
+	size_t len;
+
+	*res = 0;
+	len = strlen(cp);
+	if (len == 0)
+		return -EINVAL;
+
+	val = simple_strtoul(cp, &tail, base);
+	if (tail == cp)
+		return -EINVAL;
+
+	if ((*tail == '\0') ||
+		((len == (size_t)(tail - cp) + 1) && (*tail == '\n'))) {
+		*res = val;
+		return 0;
+	}
+
+	return -EINVAL;
+}
+
+long simple_strtol(const char *cp, char **endp, unsigned int base)
+{
+	if (*cp == '-')
+		return -simple_strtoul(cp + 1, endp, base);
+
+	return simple_strtoul(cp, endp, base);
+}
+
+unsigned long ustrtoul(const char *cp, char **endp, unsigned int base)
+{
+	unsigned long result = simple_strtoul(cp, endp, base);
+	switch (**endp) {
+	case 'G':
+		result *= 1024;
+		/* fall through */
+	case 'M':
+		result *= 1024;
+		/* fall through */
+	case 'K':
+	case 'k':
+		result *= 1024;
+		if ((*endp)[1] == 'i') {
+			if ((*endp)[2] == 'B')
+				(*endp) += 3;
+			else
+				(*endp) += 2;
+		}
+	}
+	return result;
+}
+
+unsigned long long ustrtoull(const char *cp, char **endp, unsigned int base)
+{
+	unsigned long long result = simple_strtoull(cp, endp, base);
+	switch (**endp) {
+	case 'G':
+		result *= 1024;
+		/* fall through */
+	case 'M':
+		result *= 1024;
+		/* fall through */
+	case 'K':
+	case 'k':
+		result *= 1024;
+		if ((*endp)[1] == 'i') {
+			if ((*endp)[2] == 'B')
+				(*endp) += 3;
+			else
+				(*endp) += 2;
+		}
+	}
+	return result;
+}
+
+unsigned long long simple_strtoull(const char *cp, char **endp,
+					unsigned int base)
+{
+	unsigned long long result = 0, value;
+
+	if (*cp == '0') {
+		cp++;
+		if ((*cp == 'x') && isxdigit(cp[1])) {
+			base = 16;
+			cp++;
+		}
+
+		if (!base)
+			base = 8;
+	}
+
+	if (!base)
+		base = 10;
+
+	while (isxdigit(*cp) && (value = isdigit(*cp) ? *cp - '0'
+		: (islower(*cp) ? toupper(*cp) : *cp) - 'A' + 10) < base) {
+		result = result * base + value;
+		cp++;
+	}
+
+	if (endp)
+		*endp = (char *) cp;
+
+	return result;
+}
+
+long trailing_strtoln(const char *str, const char *end)
+{
+	const char *p;
+
+	if (!end)
+		end = str + strlen(str);
+	for (p = end - 1; p > str; p--) {
+		if (!isdigit(*p))
+			return simple_strtoul(p + 1, NULL, 10);
+	}
+
+	return -1;
+}
+
+long trailing_strtol(const char *str)
+{
+	return trailing_strtoln(str, NULL);
+}
diff --git a/lib/tiny-printf.c b/lib/tiny-printf.c
index 6766a8f..403b134 100644
--- a/lib/tiny-printf.c
+++ b/lib/tiny-printf.c
@@ -40,17 +40,14 @@
 		out_dgt(dgt);
 }
 
-int printf(const char *fmt, ...)
+int vprintf(const char *fmt, va_list va)
 {
-	va_list va;
 	char ch;
 	char *p;
 	unsigned int num;
 	char buf[12];
 	unsigned int div;
 
-	va_start(va, fmt);
-
 	while ((ch = *(fmt++))) {
 		if (ch != '%') {
 			putc(ch);
@@ -117,6 +114,17 @@
 	}
 
 abort:
-	va_end(va);
 	return 0;
 }
+
+int printf(const char *fmt, ...)
+{
+	va_list va;
+	int ret;
+
+	va_start(va, fmt);
+	ret = vprintf(fmt, va);
+	va_end(va);
+
+	return ret;
+}
diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index dd8380b..24167a1 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -15,176 +15,12 @@
 #include <linux/types.h>
 #include <linux/string.h>
 #include <linux/ctype.h>
-#include <errno.h>
 
 #include <common.h>
-#if !defined(CONFIG_PANIC_HANG)
-#include <command.h>
-#endif
 
 #include <div64.h>
 #define noinline __attribute__((noinline))
 
-unsigned long simple_strtoul(const char *cp, char **endp,
-				unsigned int base)
-{
-	unsigned long result = 0;
-	unsigned long value;
-
-	if (*cp == '0') {
-		cp++;
-		if ((*cp == 'x') && isxdigit(cp[1])) {
-			base = 16;
-			cp++;
-		}
-
-		if (!base)
-			base = 8;
-	}
-
-	if (!base)
-		base = 10;
-
-	while (isxdigit(*cp) && (value = isdigit(*cp) ? *cp-'0' : (islower(*cp)
-	    ? toupper(*cp) : *cp)-'A'+10) < base) {
-		result = result*base + value;
-		cp++;
-	}
-
-	if (endp)
-		*endp = (char *)cp;
-
-	return result;
-}
-
-int strict_strtoul(const char *cp, unsigned int base, unsigned long *res)
-{
-	char *tail;
-	unsigned long val;
-	size_t len;
-
-	*res = 0;
-	len = strlen(cp);
-	if (len == 0)
-		return -EINVAL;
-
-	val = simple_strtoul(cp, &tail, base);
-	if (tail == cp)
-		return -EINVAL;
-
-	if ((*tail == '\0') ||
-		((len == (size_t)(tail - cp) + 1) && (*tail == '\n'))) {
-		*res = val;
-		return 0;
-	}
-
-	return -EINVAL;
-}
-
-long simple_strtol(const char *cp, char **endp, unsigned int base)
-{
-	if (*cp == '-')
-		return -simple_strtoul(cp + 1, endp, base);
-
-	return simple_strtoul(cp, endp, base);
-}
-
-unsigned long ustrtoul(const char *cp, char **endp, unsigned int base)
-{
-	unsigned long result = simple_strtoul(cp, endp, base);
-	switch (**endp) {
-	case 'G':
-		result *= 1024;
-		/* fall through */
-	case 'M':
-		result *= 1024;
-		/* fall through */
-	case 'K':
-	case 'k':
-		result *= 1024;
-		if ((*endp)[1] == 'i') {
-			if ((*endp)[2] == 'B')
-				(*endp) += 3;
-			else
-				(*endp) += 2;
-		}
-	}
-	return result;
-}
-
-unsigned long long ustrtoull(const char *cp, char **endp, unsigned int base)
-{
-	unsigned long long result = simple_strtoull(cp, endp, base);
-	switch (**endp) {
-	case 'G':
-		result *= 1024;
-		/* fall through */
-	case 'M':
-		result *= 1024;
-		/* fall through */
-	case 'K':
-	case 'k':
-		result *= 1024;
-		if ((*endp)[1] == 'i') {
-			if ((*endp)[2] == 'B')
-				(*endp) += 3;
-			else
-				(*endp) += 2;
-		}
-	}
-	return result;
-}
-
-unsigned long long simple_strtoull(const char *cp, char **endp,
-					unsigned int base)
-{
-	unsigned long long result = 0, value;
-
-	if (*cp == '0') {
-		cp++;
-		if ((*cp == 'x') && isxdigit(cp[1])) {
-			base = 16;
-			cp++;
-		}
-
-		if (!base)
-			base = 8;
-	}
-
-	if (!base)
-		base = 10;
-
-	while (isxdigit(*cp) && (value = isdigit(*cp) ? *cp - '0'
-		: (islower(*cp) ? toupper(*cp) : *cp) - 'A' + 10) < base) {
-		result = result * base + value;
-		cp++;
-	}
-
-	if (endp)
-		*endp = (char *) cp;
-
-	return result;
-}
-
-long trailing_strtoln(const char *str, const char *end)
-{
-	const char *p;
-
-	if (!end)
-		end = str + strlen(str);
-	for (p = end - 1; p > str; p--) {
-		if (!isdigit(*p))
-			return simple_strtoul(p + 1, NULL, 10);
-	}
-
-	return -1;
-}
-
-long trailing_strtol(const char *str)
-{
-	return trailing_strtoln(str, NULL);
-}
-
 /* we use this so that we can do without the ctype library */
 #define is_digit(c)	((c) >= '0' && (c) <= '9')
 
@@ -897,35 +733,6 @@
 	return i;
 }
 
-static void panic_finish(void) __attribute__ ((noreturn));
-
-static void panic_finish(void)
-{
-	putc('\n');
-#if defined(CONFIG_PANIC_HANG)
-	hang();
-#else
-	udelay(100000);	/* allow messages to go out */
-	do_reset(NULL, 0, 0, NULL);
-#endif
-	while (1)
-		;
-}
-
-void panic_str(const char *str)
-{
-	puts(str);
-	panic_finish();
-}
-
-void panic(const char *fmt, ...)
-{
-	va_list args;
-	va_start(args, fmt);
-	vprintf(fmt, args);
-	va_end(args);
-	panic_finish();
-}
 
 void __assert_fail(const char *assertion, const char *file, unsigned line,
 		   const char *function)
diff --git a/tools/Makefile b/tools/Makefile
index 7b4cd3f..9cfd80b 100644
--- a/tools/Makefile
+++ b/tools/Makefile
@@ -64,7 +64,7 @@
 					rsa-sign.o rsa-verify.o rsa-checksum.o \
 					rsa-mod-exp.o)
 
-ROCKCHIP_OBS = $(if $(CONFIG_ARCH_ROCKCHIP),lib/rc4.o rkcommon.o rkimage.o rksd.o,)
+ROCKCHIP_OBS = lib/rc4.o rkcommon.o rkimage.o rksd.o
 
 # common objs for dumpimage and mkimage
 dumpimage-mkimage-objs := aisimage.o \
@@ -109,12 +109,6 @@
 
 # TODO(sjg@chromium.org): Is this correct on Mac OS?
 
-ifneq ($(CONFIG_ARCH_ROCKCHIP),)
-HOST_EXTRACFLAGS += \
-		-DCONFIG_ROCKCHIP_MAX_SPL_SIZE=$(CONFIG_ROCKCHIP_MAX_SPL_SIZE) \
-		-DCONFIG_ROCKCHIP_SPL_HDR="\"$(CONFIG_ROCKCHIP_SPL_HDR)\""
-endif
-
 ifneq ($(CONFIG_MX23)$(CONFIG_MX28),)
 # Add CONFIG_MXS into host CFLAGS, so we can check whether or not register
 # the mxsimage support within tools/mxsimage.c .
diff --git a/tools/rkcommon.c b/tools/rkcommon.c
index 249c862..72621fd 100644
--- a/tools/rkcommon.c
+++ b/tools/rkcommon.c
@@ -40,16 +40,84 @@
 	uint8_t reserved2[2];
 };
 
+/**
+ * struct spl_info - spl info for each chip
+ *
+ * @imagename:		Image name(passed by "mkimage -n")
+ * @spl_hdr:		Boot ROM requires a 4-bytes spl header
+ * @spl_size:		Spl size(include extra 4-bytes spl header)
+ */
+struct spl_info {
+	const char *imagename;
+	const char *spl_hdr;
+	const uint32_t spl_size;
+};
+
+static struct spl_info spl_infos[] = {
+	{ "rk3036", "RK30", 0x1000 },
+	{ "rk3288", "RK32", 0x8000 },
+};
+
 static unsigned char rc4_key[16] = {
 	124, 78, 3, 4, 85, 5, 9, 7,
 	45, 44, 123, 56, 23, 13, 23, 17
 };
 
+static struct spl_info *rkcommon_get_spl_info(char *imagename)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(spl_infos); i++)
+		if (!strncmp(imagename, spl_infos[i].imagename, 6))
+			return spl_infos + i;
+
+	return NULL;
+}
+
+int rkcommon_check_params(struct image_tool_params *params)
+{
+	int i;
+
-int rkcommon_set_header(void *buf, uint file_size)
+	if (rkcommon_get_spl_info(params->imagename) != NULL)
+		return 0;
+
+	fprintf(stderr, "ERROR: imagename (%s) is not supported!\n",
+		strlen(params->imagename) > 0 ? params->imagename : "NULL");
+
+	fprintf(stderr, "Available imagename:");
+	for (i = 0; i < ARRAY_SIZE(spl_infos); i++)
+		fprintf(stderr, "\t%s", spl_infos[i].imagename);
+	fprintf(stderr, "\n");
+
+	return -1;
+}
+
+const char *rkcommon_get_spl_hdr(struct image_tool_params *params)
+{
+	struct spl_info *info = rkcommon_get_spl_info(params->imagename);
+
+	/*
+	 * info would not be NULL, because of we checked params before.
+	 */
+	return info->spl_hdr;
+}
+
+int rkcommon_get_spl_size(struct image_tool_params *params)
+{
+	struct spl_info *info = rkcommon_get_spl_info(params->imagename);
+
+	/*
+	 * info would not be NULL, because of we checked params before.
+	 */
+	return info->spl_size;
+}
+
+int rkcommon_set_header(void *buf, uint file_size,
+			struct image_tool_params *params)
 {
 	struct header0_info *hdr;
 
-	if (file_size > CONFIG_ROCKCHIP_MAX_SPL_SIZE)
+	if (file_size > rkcommon_get_spl_size(params))
 		return -ENOSPC;
 
 	memset(buf,  '\0', RK_INIT_OFFSET * RK_BLK_SIZE);
diff --git a/tools/rkcommon.h b/tools/rkcommon.h
index 0fc1e96..c69540f 100644
--- a/tools/rkcommon.h
+++ b/tools/rkcommon.h
@@ -12,9 +12,38 @@
 	RK_BLK_SIZE		= 512,
 	RK_INIT_OFFSET		= 4,
 	RK_MAX_BOOT_SIZE	= 512 << 10,
+	RK_SPL_HDR_START	= RK_INIT_OFFSET * RK_BLK_SIZE,
+	RK_SPL_HDR_SIZE		= 4,
+	RK_SPL_START		= RK_SPL_HDR_START + RK_SPL_HDR_SIZE,
+	RK_IMAGE_HEADER_LEN	= RK_SPL_START,
 };
 
 /**
+ * rkcommon_check_params() - check params
+ *
+ * @return 0 if OK, -1 if ERROR.
+ */
+int rkcommon_check_params(struct image_tool_params *params);
+
+/**
+ * rkcommon_get_spl_hdr() - get 4-bytes spl hdr for a Rockchip boot image
+ *
+ * Rockchip's bootrom requires the spl loader to start with a 4-bytes
+ * header. The content of this header depends on the chip type.
+ */
+const char *rkcommon_get_spl_hdr(struct image_tool_params *params);
+
+/**
+ * rkcommon_get_spl_size() - get spl size for a Rockchip boot image
+ *
+ * Different chip may have different sram size. And if we want to jump
+ * back to the bootrom after spl, we may need to reserve some sram space
+ * for the bootrom.
+ * The spl loader size should be sram size minus reserved size(if needed)
+ */
+int rkcommon_get_spl_size(struct image_tool_params *params);
+
+/**
  * rkcommon_set_header() - set up the header for a Rockchip boot image
  *
  * This sets up a 2KB header which can be interpreted by the Rockchip boot ROM.
@@ -23,6 +52,7 @@
  * @file_size:	Size of the file we want the boot ROM to load, in bytes
  * @return 0 if OK, -ENOSPC if too large
  */
-int rkcommon_set_header(void *buf, uint file_size);
+int rkcommon_set_header(void *buf, uint file_size,
+			struct image_tool_params *params);
 
 #endif
diff --git a/tools/rkimage.c b/tools/rkimage.c
index 73634e3..f9fdcfa 100644
--- a/tools/rkimage.c
+++ b/tools/rkimage.c
@@ -9,6 +9,7 @@
 
 #include "imagetool.h"
 #include <image.h>
+#include "rkcommon.h"
 
 static uint32_t header;
 
@@ -30,7 +31,8 @@
 static void rkimage_set_header(void *buf, struct stat *sbuf, int ifd,
 			       struct image_tool_params *params)
 {
-	memcpy(buf, CONFIG_ROCKCHIP_SPL_HDR, 4);
+	memcpy(buf + RK_SPL_HDR_START, rkcommon_get_spl_hdr(params),
+	       RK_SPL_HDR_SIZE);
 }
 
 static int rkimage_extract_subimage(void *buf, struct image_tool_params *params)
diff --git a/tools/rksd.c b/tools/rksd.c
index f660d56..a2baa74 100644
--- a/tools/rksd.c
+++ b/tools/rksd.c
@@ -13,18 +13,7 @@
 #include "mkimage.h"
 #include "rkcommon.h"
 
-enum {
-	RKSD_SPL_HDR_START	= RK_INIT_OFFSET * RK_BLK_SIZE,
-	RKSD_SPL_START		= RKSD_SPL_HDR_START + 4,
-	RKSD_HEADER_LEN		= RKSD_SPL_START,
-};
-
-static char dummy_hdr[RKSD_HEADER_LEN];
-
-static int rksd_check_params(struct image_tool_params *params)
-{
-	return 0;
-}
+static char dummy_hdr[RK_IMAGE_HEADER_LEN];
 
 static int rksd_verify_header(unsigned char *buf,  int size,
 				 struct image_tool_params *params)
@@ -42,15 +31,16 @@
 	unsigned int size;
 	int ret;
 
-	size = params->file_size - RKSD_SPL_HDR_START;
-	ret = rkcommon_set_header(buf, size);
+	size = params->file_size - RK_SPL_HDR_START;
+	ret = rkcommon_set_header(buf, size, params);
 	if (ret) {
 		/* TODO(sjg@chromium.org): This method should return an error */
 		printf("Warning: SPL image is too large (size %#x) and will not boot\n",
 		       size);
 	}
 
-	memcpy(buf + RKSD_SPL_HDR_START, CONFIG_ROCKCHIP_SPL_HDR, 4);
+	memcpy(buf + RK_SPL_HDR_START, rkcommon_get_spl_hdr(params),
+	       RK_SPL_HDR_SIZE);
 }
 
 static int rksd_extract_subimage(void *buf,  struct image_tool_params *params)
@@ -72,7 +62,7 @@
 {
 	int pad_size;
 
-	pad_size = RKSD_SPL_HDR_START + CONFIG_ROCKCHIP_MAX_SPL_SIZE;
+	pad_size = RK_SPL_HDR_START + rkcommon_get_spl_size(params);
 	debug("pad_size %x\n", pad_size);
 
 	return pad_size - params->file_size;
@@ -84,9 +74,9 @@
 U_BOOT_IMAGE_TYPE(
 	rksd,
 	"Rockchip SD Boot Image support",
-	RKSD_HEADER_LEN,
+	RK_IMAGE_HEADER_LEN,
 	dummy_hdr,
-	rksd_check_params,
+	rkcommon_check_params,
 	rksd_verify_header,
 	rksd_print_header,
 	rksd_set_header,
diff --git a/tools/rkspi.c b/tools/rkspi.c
index 69a12f0..800e235 100644
--- a/tools/rkspi.c
+++ b/tools/rkspi.c
@@ -14,18 +14,10 @@
 #include "rkcommon.h"
 
 enum {
-	RKSPI_SPL_HDR_START	= RK_INIT_OFFSET * RK_BLK_SIZE,
-	RKSPI_SPL_START		= RKSPI_SPL_HDR_START + 4,
-	RKSPI_HEADER_LEN	= RKSPI_SPL_START,
 	RKSPI_SECT_LEN		= RK_BLK_SIZE * 4,
 };
 
-static char dummy_hdr[RKSPI_HEADER_LEN];
-
-static int rkspi_check_params(struct image_tool_params *params)
-{
-	return 0;
-}
+static char dummy_hdr[RK_IMAGE_HEADER_LEN];
 
 static int rkspi_verify_header(unsigned char *buf, int size,
 			       struct image_tool_params *params)
@@ -45,7 +37,7 @@
 	int ret;
 
 	size = params->orig_file_size;
-	ret = rkcommon_set_header(buf, size);
+	ret = rkcommon_set_header(buf, size, params);
 	debug("size %x\n", size);
 	if (ret) {
 		/* TODO(sjg@chromium.org): This method should return an error */
@@ -53,7 +45,8 @@
 		       size);
 	}
 
-	memcpy(buf + RKSPI_SPL_HDR_START, CONFIG_ROCKCHIP_SPL_HDR, 4);
+	memcpy(buf + RK_SPL_HDR_START, rkcommon_get_spl_hdr(params),
+	       RK_SPL_HDR_SIZE);
 
 	/*
 	 * Spread the image out so we only use the first 2KB of each 4KB
@@ -89,12 +82,12 @@
 {
 	int pad_size;
 
-	pad_size = (CONFIG_ROCKCHIP_MAX_SPL_SIZE + 0x7ff) / 0x800 * 0x800;
+	pad_size = (rkcommon_get_spl_size(params) + 0x7ff) / 0x800 * 0x800;
 	params->orig_file_size = pad_size;
 
 	/* We will double the image size due to the SPI format */
 	pad_size *= 2;
-	pad_size += RKSPI_SPL_HDR_START;
+	pad_size += RK_SPL_HDR_START;
 	debug("pad_size %x\n", pad_size);
 
 	return pad_size - params->file_size;
@@ -106,9 +99,9 @@
 U_BOOT_IMAGE_TYPE(
 	rkspi,
 	"Rockchip SPI Boot Image support",
-	RKSPI_HEADER_LEN,
+	RK_IMAGE_HEADER_LEN,
 	dummy_hdr,
-	rkspi_check_params,
+	rkcommon_check_params,
 	rkspi_verify_header,
 	rkspi_print_header,
 	rkspi_set_header,