openwrt-xburst/package/boot/uboot-xburst/patches/001-xburst.patch

this patch include the u-boot2009.11 change files

From: Xiangfu Liu <xiangfu@sharism.cc>


---

 Makefile                       |   10 +
 common/env_common.c            |    2 
 common/lcd.c                   |   45 ++++
 common/main.c                  |    4 
 cpu/mips/Makefile              |    4 
 cpu/mips/cache.S               |  280 ++++++++++----------------
 cpu/mips/config.mk             |    6 -
 cpu/mips/cpu.c                 |   75 +++++++
 cpu/mips/start.S               |  432 ++++++++++++++++++++++++++++++++--------
 drivers/mtd/nand/nand_base.c   |   88 ++++++++
 examples/standalone/mips.lds   |    2 
 include/asm-mips/addrspace.h   |    2 
 include/asm-mips/global_data.h |   11 +
 include/lcd.h                  |   56 +++++
 lib_mips/board.c               |   18 +-
 lib_mips/bootm.c               |    7 +
 lib_mips/time.c                |    4 
 20 files changed, 800 insertions(+), 333 deletions(-)


diff --git a/Makefile b/Makefile
index f06a97c..a318eb4 100644
--- a/Makefile
+++ b/Makefile
@@ -3439,6 +3439,22 @@ qemu_mips_config	: unconfig
 	@$(MKCONFIG) -a qemu-mips mips mips qemu-mips
 
 #########################################################################
+## MIPS32 Jz47XX
+#########################################################################
+qi_lb60_config	: unconfig
+	@echo "#define CONFIG_NAND_U_BOOT" > $(obj)include/config.h
+	@echo "Compile NAND boot image for QI LB60"
+	@$(MKCONFIG) -a qi_lb60 mips mips nanonote
+	@echo "TEXT_BASE = 0x80100000" > $(obj)board/nanonote/config.tmp
+	@echo "CONFIG_NAND_U_BOOT = y" >> $(obj)include/config.mk
+
+avt2_config	: unconfig
+	@echo "#define CONFIG_NAND_U_BOOT" > $(obj)include/config.h
+	@echo "Compile NAND boot image for AVT2"
+	@$(MKCONFIG) -a avt2 mips mips nanonote
+	@echo "TEXT_BASE = 0x80100000" > $(obj)board/nanonote/config.tmp
+	@echo "CONFIG_NAND_U_BOOT = y" >> $(obj)include/config.mk
+#########################################################################
 ## MIPS64 5Kc
 #########################################################################
 
diff --git a/common/env_common.c b/common/env_common.c
index 439a4a9..6cfe30b 100644
--- a/common/env_common.c
+++ b/common/env_common.c
@@ -134,7 +134,10 @@ uchar default_environment[] = {
 	"pcidelay="	MK_STR(CONFIG_PCI_BOOTDELAY)	"\0"
 #endif
-#ifdef  CONFIG_EXTRA_ENV_SETTINGS
-	CONFIG_EXTRA_ENV_SETTINGS
+#ifdef CONFIG_BOOTARGSFROMSD
+	"bootargsfromsd=" CONFIG_BOOTARGSFROMSD "\0"
+#endif
+#ifdef CONFIG_BOOTCOMMANDFROMSD
+	"bootcmdfromsd=" CONFIG_BOOTCOMMANDFROMSD "\0"
 #endif
 	"\0"
 };
diff --git a/common/lcd.c b/common/lcd.c
index 4e31618..ddd5aa8 100644
--- a/common/lcd.c
+++ b/common/lcd.c
@@ -64,7 +64,9 @@
 #ifdef CONFIG_LCD_LOGO
 # include <bmp_logo.h>		/* Get logo data, width and height	*/
 # if (CONSOLE_COLOR_WHITE >= BMP_LOGO_OFFSET)
-#  error Default Color Map overlaps with Logo Color Map
+#  ifndef CONFIG_JzRISC		  /* JzRISC core */ 
+#   error Default Color Map overlaps with Logo Color Map
+#  endif
 # endif
 #endif
 
@@ -249,6 +251,14 @@ static void lcd_drawchars (ushort x, ushort y, uchar *str, int count)
 						lcd_color_fg : lcd_color_bg;
 				bits <<= 1;
 			}
+#elif LCD_BPP == LCD_COLOR32
+			uint *m = (uint *)d;
+			for (c=0; c<32; ++c) {
+				*m++ = (bits & 0x80) ?
+						lcd_color_fg : lcd_color_bg;
+				//d+=4;
+				bits <<= 1;
+			}
 #endif
 		}
 #if LCD_BPP == LCD_MONOCHROME
@@ -315,6 +325,9 @@ static void test_pattern (void)
 }
 #endif /* LCD_TEST_PATTERN */
 
+#ifdef CONFIG_JzRISC		  /* JzRISC core */ 
+extern int flush_cache_all(void);
+#endif
 
 /************************************************************************/
 /* ** GENERIC Initialization Routines					*/
@@ -381,6 +394,7 @@ static int lcd_clear (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 		COLOR_MASK(lcd_getbgcolor()),
 		lcd_line_length*panel_info.vl_row);
 #endif
+
 	/* Paint the logo and retrieve LCD base address */
 	debug ("[LCD] Drawing the logo...\n");
 	lcd_console_address = lcd_logo ();
@@ -458,6 +472,8 @@ static void lcd_setfgcolor (int color)
 {
 #ifdef CONFIG_ATMEL_LCD
 	lcd_color_fg = color;
+#elif LCD_BPP == LCD_COLOR32
+	lcd_color_fg = color & 0xFFFFFFFF;
 #else
 	lcd_color_fg = color & 0x0F;
 #endif
@@ -469,6 +485,8 @@ static void lcd_setbgcolor (int color)
 {
 #ifdef CONFIG_ATMEL_LCD
 	lcd_color_bg = color;
+#elif LCD_BPP == LCD_COLOR32
+	lcd_color_bg = color & 0xFFFFFFFF;
 #else
 	lcd_color_bg = color & 0x0F;
 #endif
@@ -507,6 +525,7 @@ void bitmap_plot (int x, int y)
 	uchar *bmap;
 	uchar *fb;
 	ushort *fb16;
+	uint *fb32;
 #if defined(CONFIG_PXA250)
 	struct pxafb_info *fbi = &panel_info.pxa;
 #elif defined(CONFIG_MPC823)
@@ -567,13 +586,25 @@ void bitmap_plot (int x, int y)
 		}
 	}
 	else { /* true color mode */
-		fb16 = (ushort *)(lcd_base + y * lcd_line_length + x);
-		for (i=0; i<BMP_LOGO_HEIGHT; ++i) {
-			for (j=0; j<BMP_LOGO_WIDTH; j++) {
-				fb16[j] = bmp_logo_palette[(bmap[j])];
+		if(NBITS(panel_info.vl_bpix) == 16){
+			fb16 = (ushort *)(lcd_base + y * lcd_line_length + x);
+			for (i=0; i<BMP_LOGO_HEIGHT; ++i) {
+				for (j=0; j<BMP_LOGO_WIDTH; j++) {
+					fb16[j] = bmp_logo_palette[(bmap[j])];
 				}
-			bmap += BMP_LOGO_WIDTH;
-			fb16 += panel_info.vl_col;
+				bmap += BMP_LOGO_WIDTH;
+				fb16 += panel_info.vl_col;
+			}
+		}
+		else{
+			fb32 = (uint *)(lcd_base + y * lcd_line_length + x);
+			for (i=0; i<BMP_LOGO_HEIGHT; ++i) {
+				for (j=0; j<BMP_LOGO_WIDTH; j++) {
+					fb32[j] = bmp_logo_palette[(bmap[j])];
+				}
+				bmap += BMP_LOGO_WIDTH;
+				fb32 += panel_info.vl_col;
+			}
 		}
 	}
 
diff --git a/common/main.c b/common/main.c
index 10d8904..ff11ad7 100644
--- a/common/main.c
+++ b/common/main.c
@@ -372,7 +372,9 @@ void main_loop (void)
 #if defined(CONFIG_BOOTDELAY) && (CONFIG_BOOTDELAY >= 0)
 	s = getenv ("bootdelay");
 	bootdelay = s ? (int)simple_strtol(s, NULL, 10) : CONFIG_BOOTDELAY;
-
+	DECLARE_GLOBAL_DATA_PTR;
+	if (gd->boot_option == 5)
+		bootdelay = gd->boot_option;
 	debug ("### main_loop entered: bootdelay=%d\n\n", bootdelay);
 
 # ifdef CONFIG_BOOT_RETRY_TIME
@@ -393,7 +395,9 @@ void main_loop (void)
 	}
 	else
 #endif /* CONFIG_BOOTCOUNT_LIMIT */
-		s = getenv ("bootcmd");
+		s = gd->boot_option == 1 ?
+			getenv ("bootcmdfromsd"):
+			getenv ("bootcmd") ;
 
 	debug ("### main_loop: bootcmd=\"%s\"\n", s ? s : "<UNDEFINED>");
 
diff --git a/cpu/mips/Makefile b/cpu/mips/Makefile
index 28a1cbb..5207bc5 100644
--- a/cpu/mips/Makefile
+++ b/cpu/mips/Makefile
@@ -33,6 +33,9 @@ SOBJS-$(CONFIG_INCA_IP)	+= incaip_wdt.o
 COBJS-$(CONFIG_INCA_IP)	+= asc_serial.o incaip_clock.o
 COBJS-$(CONFIG_PURPLE)	+= asc_serial.o
 COBJS-$(CONFIG_SOC_AU1X00) += au1x00_eth.o au1x00_serial.o au1x00_usb_ohci.o
+COBJS-$(CONFIG_JZSOC) += jz4740.o jz_serial.o jz_mmc.o jz4740_nand.o
+COBJS-$(CONFIG_NANONOTE) += nanonote_gpm940b0.o
+
 
 SRCS	:= $(START:.o=.S) $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c)
 OBJS	:= $(addprefix $(obj),$(SOBJS-y) $(COBJS-y))
diff --git a/cpu/mips/cache.S b/cpu/mips/cache.S
index ff4f11c..cb3baff 100644
--- a/cpu/mips/cache.S
+++ b/cpu/mips/cache.S
@@ -23,32 +23,19 @@
  */
 
 #include <config.h>
-#include <asm/asm.h>
+#include <version.h>
 #include <asm/regdef.h>
 #include <asm/mipsregs.h>
 #include <asm/addrspace.h>
 #include <asm/cacheops.h>
 
-#define RA		t8
+#ifndef CONFIG_JzRISC
 
-/*
- * 16kB is the maximum size of instruction and data caches on MIPS 4K,
- * 64kB is on 4KE, 24K, 5K, etc. Set bigger size for convenience.
- *
- * Note that the above size is the maximum size of primary cache. U-Boot
- * doesn't have L2 cache support for now.
- */
-#define MIPS_MAX_CACHE_SIZE	0x10000
-
-#define INDEX_BASE	CKSEG0
+	/* 16KB is the maximum size of instruction and data caches on
+	 * MIPS 4K.
+	 */
+#define MIPS_MAX_CACHE_SIZE	0x4000
 
-	.macro	cache_op op addr
-	.set	push
-	.set	noreorder
-	.set	mips3
-	cache	\op, 0(\addr)
-	.set	pop
-	.endm
 
 /*
  * cacheop macro to automate cache operations
@@ -119,79 +106,7 @@
 #define icacheop(kva, n, cacheSize, cacheLineSize, op) \
    icacheopn(kva, n, cacheSize, cacheLineSize, 1, (op))
 
-	.macro	f_fill64 dst, offset, val
-	LONG_S	\val, (\offset +  0 * LONGSIZE)(\dst)
-	LONG_S	\val, (\offset +  1 * LONGSIZE)(\dst)
-	LONG_S	\val, (\offset +  2 * LONGSIZE)(\dst)
-	LONG_S	\val, (\offset +  3 * LONGSIZE)(\dst)
-	LONG_S	\val, (\offset +  4 * LONGSIZE)(\dst)
-	LONG_S	\val, (\offset +  5 * LONGSIZE)(\dst)
-	LONG_S	\val, (\offset +  6 * LONGSIZE)(\dst)
-	LONG_S	\val, (\offset +  7 * LONGSIZE)(\dst)
-#if LONGSIZE == 4
-	LONG_S	\val, (\offset +  8 * LONGSIZE)(\dst)
-	LONG_S	\val, (\offset +  9 * LONGSIZE)(\dst)
-	LONG_S	\val, (\offset + 10 * LONGSIZE)(\dst)
-	LONG_S	\val, (\offset + 11 * LONGSIZE)(\dst)
-	LONG_S	\val, (\offset + 12 * LONGSIZE)(\dst)
-	LONG_S	\val, (\offset + 13 * LONGSIZE)(\dst)
-	LONG_S	\val, (\offset + 14 * LONGSIZE)(\dst)
-	LONG_S	\val, (\offset + 15 * LONGSIZE)(\dst)
-#endif
-	.endm
-
-/*
- * mips_init_icache(uint PRId, ulong icache_size, unchar icache_linesz)
- */
-LEAF(mips_init_icache)
-	blez	a1, 9f
-	mtc0	zero, CP0_TAGLO
-	/* clear tag to invalidate */
-	PTR_LI		t0, INDEX_BASE
-	PTR_ADDU	t1, t0, a1
-1:	cache_op	Index_Store_Tag_I t0
-	PTR_ADDU	t0, a2
-	bne		t0, t1, 1b
-	/* fill once, so data field parity is correct */
-	PTR_LI		t0, INDEX_BASE
-2:	cache_op	Fill t0
-	PTR_ADDU	t0, a2
-	bne		t0, t1, 2b
-	/* invalidate again - prudent but not strictly neccessary */
-	PTR_LI		t0, INDEX_BASE
-1:	cache_op	Index_Store_Tag_I t0
-	PTR_ADDU	t0, a2
-	bne		t0, t1, 1b
-9:	jr	ra
-	END(mips_init_icache)
-
 /*
- * mips_init_dcache(uint PRId, ulong dcache_size, unchar dcache_linesz)
- */
-LEAF(mips_init_dcache)
-	blez	a1, 9f
-	mtc0	zero, CP0_TAGLO
-	/* clear all tags */
-	PTR_LI		t0, INDEX_BASE
-	PTR_ADDU	t1, t0, a1
-1:	cache_op	Index_Store_Tag_D t0
-	PTR_ADDU	t0, a2
-	bne		t0, t1, 1b
-	/* load from each line (in cached space) */
-	PTR_LI		t0, INDEX_BASE
-2:	LONG_L		zero, 0(t0)
-	PTR_ADDU	t0, a2
-	bne		t0, t1, 2b
-	/* clear all tags */
-	PTR_LI		t0, INDEX_BASE
-1:	cache_op	Index_Store_Tag_D t0
-	PTR_ADDU	t0, a2
-	bne		t0, t1, 1b
-9:	jr	ra
-	END(mips_init_dcache)
-
-/*******************************************************************************
-*
 * mips_cache_reset - low level initialisation of the primary caches
 *
 * This routine initialises the primary caches to ensure that they
@@ -204,112 +119,129 @@ LEAF(mips_init_dcache)
 * a source of parity.
 *
 * RETURNS: N/A
-*
 */
-NESTED(mips_cache_reset, 0, ra)
-	move	RA, ra
+	.globl	mips_cache_reset
+	.ent	mips_cache_reset
+mips_cache_reset:
+
 	li	t2, CONFIG_SYS_ICACHE_SIZE
 	li	t3, CONFIG_SYS_DCACHE_SIZE
 	li	t4, CONFIG_SYS_CACHELINE_SIZE
 	move	t5, t4
 
+
 	li	v0, MIPS_MAX_CACHE_SIZE
 
-	/*
-	 * Now clear that much memory starting from zero.
+	/* Now clear that much memory starting from zero.
 	 */
-	PTR_LI		a0, CKSEG1
-	PTR_ADDU	a1, a0, v0
-2:	PTR_ADDIU	a0, 64
-	f_fill64	a0, -64, zero
-	bne		a0, a1, 2b
-
-	/*
-	 * The caches are probably in an indeterminate state,
-	 * so we force good parity into them by doing an
-	 * invalidate, load/fill, invalidate for each line.
+
+	li	a0, KSEG1
+	addu	a1, a0, v0
+
+2:	sw	zero, 0(a0)
+	sw	zero, 4(a0)
+	sw	zero, 8(a0)
+	sw	zero, 12(a0)
+	sw	zero, 16(a0)
+	sw	zero, 20(a0)
+	sw	zero, 24(a0)
+	sw	zero, 28(a0)
+	addu	a0, 32
+	bltu	a0, a1, 2b
+
+	/* Set invalid tag.
 	 */
 
-	/*
-	 * Assume bottom of RAM will generate good parity for the cache.
+	mtc0	zero, CP0_TAGLO
+
+   /*
+    * The caches are probably in an indeterminate state,
+    * so we force good parity into them by doing an
+    * invalidate, load/fill, invalidate for each line.
+    */
+
+	/* Assume bottom of RAM will generate good parity for the cache.
 	 */
 
-	/*
-	 * Initialize the I-cache first,
+	li	a0, K0BASE
+	move	a2, t2		# icacheSize
+	move	a3, t4		# icacheLineSize
+	move	a1, a2
+	icacheopn(a0,a1,a2,a3,121,(Index_Store_Tag_I,Fill))
+
+	/* To support Orion/R4600, we initialise the data cache in 3 passes.
 	 */
-	move	a1, t2
-	move	a2, t4
-	PTR_LA	t7, mips_init_icache
-	jalr	t7
 
-	/*
-	 * then initialize D-cache.
+	/* 1: initialise dcache tags.
 	 */
-	move	a1, t3
-	move	a2, t5
-	PTR_LA	t7, mips_init_dcache
-	jalr	t7
 
-	jr	RA
-	END(mips_cache_reset)
+	li	a0, K0BASE
+	move	a2, t3		# dcacheSize
+	move	a3, t5		# dcacheLineSize
+	move	a1, a2
+	icacheop(a0,a1,a2,a3,Index_Store_Tag_D)
 
-/*******************************************************************************
-*
-* dcache_status - get cache status
-*
-* RETURNS: 0 - cache disabled; 1 - cache enabled
-*
-*/
-LEAF(dcache_status)
-	mfc0	t0, CP0_CONFIG
-	li	t1, CONF_CM_UNCACHED
-	andi	t0, t0, CONF_CM_CMASK
-	move	v0, zero
-	beq	t0, t1, 2f
-	li	v0, 1
-2:	jr	ra
-	END(dcache_status)
-
-/*******************************************************************************
-*
+	/* 2: fill dcache.
+	 */
+
+	li	a0, K0BASE
+	move	a2, t3		# dcacheSize
+	move	a3, t5		# dcacheLineSize
+	move	a1, a2
+	icacheopn(a0,a1,a2,a3,1lw,(dummy))
+
+	/* 3: clear dcache tags.
+	 */
+
+	li	a0, K0BASE
+	move	a2, t3		# dcacheSize
+	move	a3, t5		# dcacheLineSize
+	move	a1, a2
+	icacheop(a0,a1,a2,a3,Index_Store_Tag_D)
+
+	j  ra
+	.end  mips_cache_reset
+
+
+/*
+ * dcache_status - get cache status
+ *
+ * RETURNS: 0 - cache disabled; 1 - cache enabled
+ */
+	.globl	dcache_status
+	.ent	dcache_status
+dcache_status:
+
+	mfc0	v0, CP0_CONFIG
+	andi	v0, v0, 1
+	j	ra
+
+	.end  dcache_status
+
+/*
 * dcache_disable - disable cache
 *
 * RETURNS: N/A
-*
 */
-LEAF(dcache_disable)
+	.globl	dcache_disable
+	.ent	dcache_disable
+dcache_disable:
+
 	mfc0	t0, CP0_CONFIG
 	li	t1, -8
 	and	t0, t0, t1
 	ori	t0, t0, CONF_CM_UNCACHED
-	mtc0	t0, CP0_CONFIG
-	jr	ra
-	END(dcache_disable)
+	mtc0    t0, CP0_CONFIG
+	j	ra
 
-/*******************************************************************************
-*
-* dcache_enable - enable cache
-*
-* RETURNS: N/A
-*
-*/
-LEAF(dcache_enable)
-	mfc0	t0, CP0_CONFIG
-	ori	t0, CONF_CM_CMASK
-	xori	t0, CONF_CM_CMASK
-	ori	t0, CONF_CM_CACHABLE_NONCOHERENT
-	mtc0	t0, CP0_CONFIG
-	jr	ra
-	END(dcache_enable)
-
-#ifdef CONFIG_SYS_INIT_RAM_LOCK_MIPS
-/*******************************************************************************
-*
-* mips_cache_lock - lock RAM area pointed to by a0 in cache.
-*
-* RETURNS: N/A
-*
-*/
+	.end  dcache_disable
+
+
+/*
+ * mips_cache_lock - lock RAM area pointed to by a0 in cache.
+ *
+ * RETURNS: N/A
+ */
 #if defined(CONFIG_PURPLE)
 # define	CACHE_LOCK_SIZE	(CONFIG_SYS_DCACHE_SIZE/2)
 #else
@@ -318,14 +250,14 @@ LEAF(dcache_enable)
 	.globl	mips_cache_lock
 	.ent	mips_cache_lock
 mips_cache_lock:
-	li	a1, CKSEG0 - CACHE_LOCK_SIZE
+	li	a1, K0BASE - CACHE_LOCK_SIZE
 	addu	a0, a1
 	li	a2, CACHE_LOCK_SIZE
 	li	a3, CONFIG_SYS_CACHELINE_SIZE
 	move	a1, a2
 	icacheop(a0,a1,a2,a3,0x1d)
 
-	jr	ra
-
+	j	ra
 	.end	mips_cache_lock
-#endif /* CONFIG_SYS_INIT_RAM_LOCK_MIPS */
+
+#endif /* CONFIG_JzRISC */
diff --git a/cpu/mips/config.mk b/cpu/mips/config.mk
index a173c54..8d27e52 100644
--- a/cpu/mips/config.mk
+++ b/cpu/mips/config.mk
@@ -25,15 +25,15 @@ MIPSFLAGS:=$(shell \
 if [ "$v" -lt "14" ]; then \
 	echo "-mcpu=4kc"; \
 else \
-	echo "-march=4kc -mtune=4kc"; \
+	echo "-march=4kc -mtune=r4600"; \
 fi)
 
 ifneq (,$(findstring 4KCle,$(CROSS_COMPILE)))
 ENDIANNESS = -EL
 else
-ENDIANNESS = -EB
+#ENDIANNESS = -EB
 endif
 
-MIPSFLAGS += $(ENDIANNESS)
+MIPSFLAGS += $(ENDIANNESS) -mabicalls -mips32 -O2
 
 PLATFORM_CPPFLAGS += $(MIPSFLAGS)
diff --git a/cpu/mips/cpu.c b/cpu/mips/cpu.c
index d5a1604..48e1cea 100644
--- a/cpu/mips/cpu.c
+++ b/cpu/mips/cpu.c
@@ -28,6 +28,12 @@
 #include <asm/cacheops.h>
 #include <asm/reboot.h>
 
+#ifdef CONFIG_JZ4740
+#include <asm/jz4740.h>
+#endif
+
+#if !defined (CONFIG_NAND_SPL) && !defined (CONFIG_MSC_SPL) 
+
 #define cache_op(op,addr)						\
 	__asm__ __volatile__(						\
 	"	.set	push					\n"	\
@@ -40,6 +46,19 @@
 
 void __attribute__((weak)) _machine_restart(void)
 {
+#ifdef CONFIG_JZ4740
+	__wdt_select_extalclk();
+	__wdt_select_clk_div64();
+	__wdt_set_data(100);
+	__wdt_set_count(0);
+	__tcu_start_wdt_clock();
+	__wdt_start();
+	while(1);
+#endif
+#if defined(CONFIG_JzRISC)
+	void (*f)(void) = (void *) 0xbfc00000;
+	f();
+#endif
 }
 
 int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
@@ -110,3 +129,59 @@ int cpu_eth_init(bd_t *bis)
 #endif
 	return 0;
 }
+
+#endif /* !CONFIG_NAND_SPL  !CONFIG_MSC_SPL */
+
+#ifdef CONFIG_JzRISC
+void flush_icache_all(void)
+{
+	u32 addr, t = 0;
+
+	asm volatile ("mtc0 $0, $28"); /* Clear Taglo */
+	asm volatile ("mtc0 $0, $29"); /* Clear TagHi */
+
+	for (addr = KSEG0; addr < KSEG0 + CONFIG_SYS_ICACHE_SIZE;
+	     addr += CONFIG_SYS_CACHELINE_SIZE) {
+		asm volatile (
+			".set mips3\n\t"
+			" cache %0, 0(%1)\n\t"
+			".set mips2\n\t"
+			:
+			: "I" (Index_Store_Tag_I), "r"(addr));
+	}
+
+	/* invalicate btb */
+	asm volatile (
+		".set mips32\n\t"
+		"mfc0 %0, $16, 7\n\t"
+		"nop\n\t"
+		"ori %0,2\n\t"
+		"mtc0 %0, $16, 7\n\t"
+		".set mips2\n\t"
+		:
+		: "r" (t));
+}
+
+void flush_dcache_all(void)
+{
+	u32 addr;
+
+	for (addr = KSEG0; addr < KSEG0 + CONFIG_SYS_DCACHE_SIZE; 
+	     addr += CONFIG_SYS_CACHELINE_SIZE) {
+		asm volatile (
+			".set mips3\n\t"
+			" cache %0, 0(%1)\n\t"
+			".set mips2\n\t"
+			:
+			: "I" (Index_Writeback_Inv_D), "r"(addr));
+	}
+
+	asm volatile ("sync");
+}
+
+void flush_cache_all(void)
+{
+	flush_dcache_all();
+	flush_icache_all();
+}
+#endif	/* CONFIG_JzRISC */
diff --git a/cpu/mips/start.S b/cpu/mips/start.S
index 57db589..fa6e352 100644
--- a/cpu/mips/start.S
+++ b/cpu/mips/start.S
@@ -23,32 +23,33 @@
  */
 
 #include <config.h>
+#include <version.h>
 #include <asm/regdef.h>
 #include <asm/mipsregs.h>
+#include <asm/addrspace.h>
+#include <asm/cacheops.h>
 
-	/*
-	 * For the moment disable interrupts, mark the kernel mode and
-	 * set ST0_KX so that the CPU does not spit fire when using
-	 * 64-bit addresses.
-	 */
-	.macro	setup_c0_status set clr
-	.set	push
-	mfc0	t0, CP0_STATUS
-	or	t0, ST0_CU0 | \set | 0x1f | \clr
-	xor	t0, 0x1f | \clr
-	mtc0	t0, CP0_STATUS
-	.set	noreorder
-	sll	zero, 3				# ehb
-	.set	pop
-	.endm
-
-	.macro	setup_c0_status_reset
-#ifdef CONFIG_64BIT
-	setup_c0_status ST0_KX 0
-#else
-	setup_c0_status 0 0
+#ifdef CONFIG_JZ4730
+#include <asm/jz4730.h>
+#endif
+
+#ifdef CONFIG_JZ4740
+#include <asm/jz4740.h>
+#endif
+
+#ifdef CONFIG_JZ4750
+#include <asm/jz4750.h>
+#endif
+
+#ifdef CONFIG_JZ4750D
+#include <asm/jz4750d.h>
+#endif
+
+#if defined(CONFIG_JZ4750) || defined(CONFIG_JZ4750D)
+#define JZ4750_NANDBOOT_CFG0 (0x55555500 | (CFG_NAND_BW8*0xff))
+#define JZ4750_NANDBOOT_CFG1 0x55555555
+#define JZ4750_NANDBOOT_CFG2 ((CFG_NAND_PAGE_SIZE==2048)&0xff0000) | ((CFG_NAND_PAGE_SIZE!=512)&0xff00) | ((CFG_NAND_ROW_CYCLE==3)&0xff)
 #endif
-	.endm
 
 #define RVECENT(f,n) \
    b f; nop
@@ -61,6 +62,28 @@
 	.globl _start
 	.text
 _start:
+#if defined(CONFIG_JZ4740)
+#if !defined(CONFIG_NAND_SPL) && !defined(CONFIG_NAND_U_BOOT)
+	.word JZ4740_NORBOOT_CFG	/* fetched during NOR Boot */
+#else
+#if defined(CONFIG_NAND_SPL)
+	.word JZ4740_NANDBOOT_CFG	/* fetched during NAND Boot */
+#endif
+#endif
+#endif /* CONFIG_JZ4740 */
+#if defined(CONFIG_JZ4750) || defined(CONFIG_JZ4750D)
+#if !defined(CONFIG_NAND_SPL) && !defined(CONFIG_NAND_U_BOOT)
+	.word JZ4750_NORBOOT_CFG	/* fetched during NOR Boot */
+#else
+#if defined(CONFIG_NAND_SPL) && !defined(CONFIG_MSC_SPL)
+	/* First three words fetched by CPU during NAND Boot */
+	.word JZ4750_NANDBOOT_CFG0
+	.word JZ4750_NANDBOOT_CFG1
+	.word JZ4750_NANDBOOT_CFG2
+#endif
+#endif
+#endif /* CONFIG_JZ4750 || CONFIG_JZ4750D */
+#if !defined(CONFIG_JzRISC)
 	RVECENT(reset,0)	/* U-boot entry point */
 	RVECENT(reset,1)	/* software reboot */
 #if defined(CONFIG_INCA_IP)
@@ -213,7 +236,7 @@ _start:
 	.word	0x00000000
 	.word	0x03e00008
 	.word	0x00000000
-	.word	0x00000000
+	.word   0x00000000
 /* 0xbfc00428 */
 	.word	0xdc870000
 	.word	0xfca70000
@@ -224,74 +247,192 @@ _start:
 	.word	0x00000000
 	.word	0x03e00008
 	.word	0x00000000
-	.word	0x00000000
+	.word   0x00000000
 #endif /* CONFIG_PURPLE */
 	.align 4
+#endif /* CONFIG_JzRISC */
+
 reset:
 
+#if !defined(CONFIG_NAND_U_BOOT) || defined(CONFIG_NAND_SPL)
+
+#ifdef CONFIG_JZ4730
+
+	/* Disable interrupts */
+	la	t0, INTC_IMR
+	li	t1, 0xffffffff
+	sw	t1, 0(t0)
+
+	/*
+	 * Clear SCR.HGP
+	 */
+	la	t0, CPM_SCR
+	lw	t1, 0(t0)
+	ori	t1, 0x8
+	xori	t1, 0x8
+	sw	t1, 0(t0)
+
+	/*
+	 * Set usb port0 as host
+	 */
+	la	t0, HARB_HAPOR
+	lw	t1, 0(t0)
+	ori	t1, HARB_HAPOR_UCHSEL
+	sw	t1, 0(t0)
+
+	/*
+	 * Check reset status
+	 */
+	la	t0, CPM_RSTR
+	lw	t1, 0(t0)
+	andi	t1, 0x4
+	bnez	t1, resume_from_hibernate
+	nop
+#endif /* CONFIG_JZ4730 */
+
+#ifndef CONFIG_NAND_SPL
 	/* Clear watch registers.
 	 */
 	mtc0	zero, CP0_WATCHLO
 	mtc0	zero, CP0_WATCHHI
+#endif
 
-	/* WP(Watch Pending), SW0/1 should be cleared. */
-	mtc0	zero, CP0_CAUSE
+	/* STATUS register */
+#ifdef CONFIG_JzRISC
+	/* 
+	 * CU0=UM=EXL=IE=0, BEV=ERL=1, IP2~7=1
+	 */
+	li	t0, 0x0040FC04
+	mtc0	t0, CP0_STATUS
+#else
+#ifdef  CONFIG_TB0229
+	li	k0, ST0_CU0
+#else
+	mfc0	k0, CP0_STATUS
+#endif
+	li	k1, ~ST0_IE
+	and	k0, k1
+	mtc0	k0, CP0_STATUS
+#endif
 
-	setup_c0_status_reset
+	/* CAUSE register */
+#ifdef CONFIG_JzRISC
+	/* IV=1, use the specical interrupt vector (0x200) */
+	li	t1, 0x00800000
+	mtc0	t1, CP0_CAUSE
+#else
+	mtc0	zero, CP0_CAUSE
+#endif
 
+#ifndef CONFIG_JzRISC
 	/* Init Timer */
 	mtc0	zero, CP0_COUNT
 	mtc0	zero, CP0_COMPARE
+#endif
 
-#if !defined(CONFIG_SKIP_LOWLEVEL_INIT)
+#endif /* !defined(CONFIG_NAND_U_BOOT) || defined(CONFIG_NAND_SPL) */
+
+#if !defined(CONFIG_NAND_SPL) && !defined(CONFIG_NAND_U_BOOT)
 	/* CONFIG0 register */
 	li	t0, CONF_CM_UNCACHED
 	mtc0	t0, CP0_CONFIG
-#endif /* !CONFIG_SKIP_LOWLEVEL_INIT */
+#endif
 
-	/* Initialize $gp.
+	/* Initialize GOT pointer.
+	*/
+	bal     1f
+	nop
+	.word   _GLOBAL_OFFSET_TABLE_
+	1:
+	move    gp, ra
+	lw      t1, 0(ra)
+	move	gp, t1
+
+#ifdef CONFIG_INCA_IP
+	/* Disable INCA-IP Watchdog.
 	 */
-	bal	1f
+	la      t9, disable_incaip_wdt
+	jalr    t9
 	nop
-	.word	_gp
-1:
-	lw	gp, 0(ra)
+#endif
 
-#if !defined(CONFIG_SKIP_LOWLEVEL_INIT)
+/* JzRISC will init external memory in board_init_f,
+   which uses cache as stack and calls into C code. */
+#ifndef CONFIG_JzRISC
 	/* Initialize any external memory.
 	 */
-	la	t9, lowlevel_init
-	jalr	t9
+	la      t9, lowlevel_init
+	jalr    t9
 	nop
+#endif
 
+#if !defined(CONFIG_NAND_SPL) && !defined(CONFIG_NAND_U_BOOT)
 	/* Initialize caches...
 	 */
-	la	t9, mips_cache_reset
-	jalr	t9
+#ifdef CONFIG_JzRISC
+	.set	mips32
+	mtc0	zero, CP0_TAGLO
+	mtc0	zero, CP0_TAGHI
+
+	li	t0, K0BASE
+	ori	t1, t0, CONFIG_SYS_DCACHE_SIZE
+1:
+	cache	Index_Store_Tag_D, 0(t0)
+	bne	t0, t1, 1b
+	addiu	t0, t0, CONFIG_SYS_CACHELINE_SIZE
+
+	li	t0, K0BASE
+	ori	t1, t0, CONFIG_SYS_ICACHE_SIZE
+2:
+	cache	Index_Store_Tag_I, 0(t0)
+	bne	t0, t1, 2b
+	addiu	t0, t0, CONFIG_SYS_CACHELINE_SIZE
+
+	/* Invalidate BTB */
+	mfc0	t0, CP0_CONFIG, 7
+	nop
+	ori	t0, 2
+	mtc0	t0, CP0_CONFIG, 7
 	nop
 
+	.set	mips2
+#else
+	la      t9, mips_cache_reset
+	jalr    t9
+	nop
+#endif
+
 	/* ... and enable them.
 	 */
 	li	t0, CONF_CM_CACHABLE_NONCOHERENT
 	mtc0	t0, CP0_CONFIG
-#endif /* !CONFIG_SKIP_LOWLEVEL_INIT */
+	nop
+
+#endif /* !defined(CONFIG_NAND_SPL) && !defined(CONFIG_NAND_U_BOOT) */
 
 	/* Set up temporary stack.
 	 */
-#ifdef CONFIG_SYS_INIT_RAM_LOCK_MIPS
+#ifndef CONFIG_JzRISC
 	li	a0, CONFIG_SYS_INIT_SP_OFFSET
-	la	t9, mips_cache_lock
-	jalr	t9
+	la      t9, mips_cache_lock
+	jalr    t9
 	nop
 #endif
 
+#ifdef CONFIG_NAND_SPL
+	la	sp, 0x80004000
+	la	t9, nand_boot
+	j	t9
+	nop
+#else
 	li	t0, CONFIG_SYS_SDRAM_BASE + CONFIG_SYS_INIT_SP_OFFSET
 	la	sp, 0(t0)
 
 	la	t9, board_init_f
-	jr	t9
+	j	t9
 	nop
 
+
 /*
  * void relocate_code (addr_sp, gd, addr_moni)
  *
@@ -305,37 +446,28 @@ reset:
 	.globl	relocate_code
 	.ent	relocate_code
 relocate_code:
-	move	sp, a0		/* Set new stack pointer	*/
+	move	sp, a0		/* Set new stack pointer		*/
 
-	li	t0, CONFIG_SYS_MONITOR_BASE
+	li	t0, TEXT_BASE
 	la	t3, in_ram
 	lw	t2, -12(t3)	/* t2 <-- uboot_end_data	*/
 	move	t1, a2
-	move	s2, a2		/* s2 <-- destination address	*/
 
 	/*
-	 * Fix $gp:
+	 * Fix GOT pointer:
 	 *
-	 * New $gp = (Old $gp - CONFIG_SYS_MONITOR_BASE) + Destination Address
+	 * New GOT-PTR = (old GOT-PTR - TEXT_BASE) + Destination Address
 	 */
 	move	t6, gp
-	sub	gp, CONFIG_SYS_MONITOR_BASE
-	add	gp, a2		/* gp now adjusted		*/
-	sub	s1, gp, t6	/* s1 <-- relocation offset	*/
+	sub	gp, TEXT_BASE
+	add	gp, a2			/* gp now adjusted		*/
+	sub	t6, gp, t6		/* t6 <-- relocation offset	*/
 
 	/*
 	 * t0 = source address
 	 * t1 = target address
 	 * t2 = source end address
 	 */
-
-	/*
-	 * Save destination address and size for later usage in flush_cache()
-	 */
-	move	s0, a1		/* save gd in s0		*/
-	move	a0, t1		/* a0 <-- destination addr	*/
-	sub	a1, t2, t0	/* a1 <-- size			*/
-
 	/* On the purple board we copy the code earlier in a special way
 	 * in order to solve flash problems
 	 */
@@ -345,47 +477,61 @@ relocate_code:
 	sw	t3, 0(t1)
 	addu	t0, 4
 	ble	t0, t2, 1b
-	addu	t1, 4		/* delay slot			*/
+	addu	t1, 4			/* delay slot			*/
 #endif
 
 	/* If caches were enabled, we would have to flush them here.
 	 */
-
-	/* a0 & a1 are already set up for flush_cache(start, size) */
-	la	t9, flush_cache
-	jalr	t9
+#ifdef CONFIG_JzRISC
+	/* flush d-cache */
+	.set	mips32
+	li	t0, KSEG0
+	addi	t1, t0, CONFIG_SYS_DCACHE_SIZE
+2:
+	cache	Index_Writeback_Inv_D, 0(t0)
+	bne	t0, t1, 2b
+	addi	t0, CONFIG_SYS_CACHELINE_SIZE
+
+	sync
+
+	/* flush i-cache */
+	li	t0, KSEG0
+	addi	t1, t0, CONFIG_SYS_ICACHE_SIZE
+3:
+	cache	Index_Invalidate_I, 0(t0)
+	bne	t0, t1, 3b
+	addi	t0, CONFIG_SYS_CACHELINE_SIZE
+
+	/* Invalidate BTB */
+	mfc0	t0, CP0_CONFIG, 7
+	nop
+	ori	t0, 2
+	mtc0	t0, CP0_CONFIG, 7
 	nop
 
+	.set	mips0
+#endif
+
 	/* Jump to where we've relocated ourselves.
 	 */
-	addi	t0, s2, in_ram - _start
-	jr	t0
+	addi	t0, a2, in_ram - _start
+	j	t0
 	nop
 
-	.word	_gp
-	.word	_GLOBAL_OFFSET_TABLE_
 	.word	uboot_end_data
 	.word	uboot_end
 	.word	num_got_entries
 
 in_ram:
-	/*
-	 * Now we want to update GOT.
-	 *
-	 * GOT[0] is reserved. GOT[1] is also reserved for the dynamic object
-	 * generated by GNU ld. Skip these reserved entries from relocation.
+	/* Now we want to update GOT.
 	 */
 	lw	t3, -4(t0)	/* t3 <-- num_got_entries	*/
-	lw	t4, -16(t0)	/* t4 <-- _GLOBAL_OFFSET_TABLE_	*/
-	lw	t5, -20(t0)	/* t5 <-- _gp	*/
-	sub	t4, t5		/* compute offset*/
-	add	t4, t4, gp	/* t4 now holds relocated _GLOBAL_OFFSET_TABLE_	*/
-	addi	t4, t4, 8	/* Skipping first two entries.	*/
+	addi	t4, gp, 8	/* Skipping first two entries.	*/
 	li	t2, 2
 1:
 	lw	t1, 0(t4)
 	beqz	t1, 2f
-	add	t1, s1
+	add	t1, t6
 	sw	t1, 0(t4)
 2:
 	addi	t2, 1
@@ -396,26 +542,134 @@ in_ram:
 	 */
 	lw	t1, -12(t0)	/* t1 <-- uboot_end_data	*/
 	lw	t2, -8(t0)	/* t2 <-- uboot_end		*/
-	add	t1, s1		/* adjust pointers		*/
-	add	t2, s1
+	add	t1, t6		/* adjust pointers		*/
+	add	t2, t6
 
 	sub	t1, 4
-1:
-	addi	t1, 4
+1:	addi	t1, 4
 	bltl	t1, t2, 1b
 	sw	zero, 0(t1)	/* delay slot			*/
 
-	move	a0, s0		/* a0 <-- gd			*/
+	move	a0, a1
 	la	t9, board_init_r
-	jr	t9
-	move	a1, s2		/* delay slot			*/
+	j	t9
+	move	a1, a2		/* delay slot			*/
 
 	.end	relocate_code
 
+#endif /* CONFIG_NAND_SPL */
+
+#if !defined(CONFIG_JzRISC)
 	/* Exception handlers.
 	 */
 romReserved:
-	b	romReserved
+	b romReserved
 
 romExcHandle:
-	b	romExcHandle
+	b romExcHandle
+#endif
+
+#ifdef CONFIG_JZ4730
+
+/* These are the runtime values, modify them according to your platform. */
+#define PLCR1_VAL     0x1b000520
+#define CFCR_VAL      0x0c526220
+
+#define DMCR_VAL0     0x042a3211
+#define DMCR_VAL1     0x05aa3211 /*(DMCR_VAL0|EMC_DMCR_RFSH|EMC_DMCR_MRSET)*/
+
+#define RTCOR_VAL     0x10
+#define RTCSR_VAL     0x83
+
+	/*
+	 * cpu was reset from hibernate mode
+	 */
+resume_from_hibernate:
+	/*
+	 * Init PLL
+	 */
+	la	t0, 0xB0000000	/* CFCR */
+	li	t1, CFCR_VAL
+	sw	t1, 0(t0)
+
+	la	t0, 0xB0000010	/* PLCR1 */
+	li	t1, PLCR1_VAL
+	sw	t1, 0(t0)
+	nop;nop;nop;nop
+
+	/* Init caches */
+	.set	mips32
+	mtc0	zero, CP0_TAGLO
+	mtc0	zero, CP0_TAGHI
+
+	li	t0, K0BASE
+	ori	t1, t0, CONFIG_SYS_DCACHE_SIZE
+1:
+	cache	Index_Store_Tag_D, 0(t0)
+	cache	Index_Store_Tag_I, 0(t0)
+	bne	t0, t1, 1b
+	addiu	t0, t0, CONFIG_SYS_CACHELINE_SIZE
+
+	/*
+	 * Init SDRAM
+	 */
+	la	t0, 0xB0010070	/* GPALR2 */
+	lw	t1, 0(t0)
+	li	t2, 0x3FFFFFFF
+	and	t1, t2
+	li	t2, 0x40000000
+	or	t1, t2
+	sw	t1, 0(t0)
+
+	la	t0, 0xB0010074	/* GPAUR2 */
+	lw	t1, 0(t0)
+	li	t2, 0xFFFF0000
+	and	t1, t2
+	li	t2, 0x00005555
+	or	t1, t2
+	sw	t1, 0(t0)
+
+	la	t0, 0xB3010000	/* EMC base address */
+
+	li	t1, DMCR_VAL0	/* DMCR */
+	sw	t1, 0x80(t0)
+
+	li	t1, RTCOR_VAL
+	sh	t1, 0x8c(t0)	/* RTCOR */
+
+	li	t1, RTCSR_VAL
+	sh	t1, 0x84(t0)	/* RTCSR */
+
+	/* precharge all chip-selects */
+	ori	t1, t0, 0xa088
+	sb	$0, 0(t1)
+	ori	t1, t0, 0xb088
+	sb	$0, 0(t1)
+
+	/* delay about 200us */
+	li	t1, 0x20000
+1:
+	bnez	t1, 1b
+	sub	t1, 1
+
+	la	t1, DMCR_VAL1	/* DMCR */
+	sw	t1, 0x80(t0)
+
+	/* write sdram mode register for each chip-select */
+	ori	t1, t0, 0xa088
+	sb	$0, 0(t1)
+	ori	t1, t0, 0xb088
+	sb	$0, 0(t1)
+
+	/*
+	 * jump to resume entry point
+	 */
+	la	t0, CPM_SPR
+	lw	t1, 0(t0)
+	li	t0, 0x80000000
+	or	t0, t1
+
+	j	t0
+	nop
+
+#endif /* CONFIG_JZ4730 */
diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index 426bb95..6e5fbd3 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -109,6 +109,22 @@ static struct nand_ecclayout nand_oob_16 = {
 		 . length = 8}}
 };
 
+#if defined(CONFIG_JZ4740)
+static struct nand_ecclayout nand_oob_64 = {
+	.eccbytes = 36,
+	.eccpos = {
+		6,  7,  8,  9,  10, 11, 12, 13,
+		14, 15, 16, 17, 18, 19, 20, 21,
+		22, 23, 24, 25, 26, 27, 28, 29,
+		30, 31, 32, 33, 34, 35, 36, 37,
+		38, 39, 40, 41},
+	.oobfree ={
+		{.offset = 2,
+		 .length = 4},
+		{.offset = 42,
+		 .length = 22}}
+};
+#else
 static struct nand_ecclayout nand_oob_64 = {
 	.eccbytes = 24,
 	.eccpos = {
@@ -119,6 +135,7 @@ static struct nand_ecclayout nand_oob_64 = {
 		{.offset = 2,
 		 .length = 38}}
 };
+#endif
 
 static struct nand_ecclayout nand_oob_128 = {
 	.eccbytes = 48,
@@ -1116,6 +1133,60 @@ static int nand_read_page_hwecc_oob_first(struct mtd_info *mtd,
 }
 
 /**
+ * nand_read_page_hwecc_rs - [REPLACABLE] hardware rs ecc based page read function
+ * @mtd:	mtd info structure
+ * @chip:	nand chip info structure
+ * @buf:	buffer to store read data
+ *
+ * Not for syndrome calculating ecc controllers which need a special oob layout
+ */
+static int nand_read_page_hwecc_rs(struct mtd_info *mtd, struct nand_chip *chip,
+				   uint8_t *buf)
+{
+	int i, eccsize = chip->ecc.size;
+	int eccbytes = chip->ecc.bytes;
+	int eccsteps = chip->ecc.steps;
+	uint8_t *p = buf;
+	uint8_t *ecc_calc = chip->buffers->ecccalc;
+	uint8_t *ecc_code = chip->buffers->ecccode;
+	uint32_t *eccpos = chip->ecc.layout->eccpos;
+	uint32_t page;
+	uint8_t flag = 0;
+
+	page = (buf[3]<<24) + (buf[2]<<16) + (buf[1]<<8) + buf[0];
+
+	chip->cmdfunc(mtd, NAND_CMD_READOOB, 0, page);
+	chip->read_buf(mtd, chip->oob_poi, mtd->oobsize);
+
+	for (i = 0; i < chip->ecc.total; i++) {
+		ecc_code[i] = chip->oob_poi[CONFIG_SYS_NAND_ECC_POS + i];
+		if (ecc_code[i] != 0xff)
+			flag = 1;
+	}
+
+	eccsteps = chip->ecc.steps;
+	p = buf;
+
+	chip->cmdfunc(mtd, NAND_CMD_RNDOUT, 0x00, -1);
+	for (i = 0 ; eccsteps; eccsteps--, i += eccbytes, p += eccsize) {
+		int stat;
+		if (flag) {
+			chip->ecc.hwctl(mtd, NAND_ECC_READ);
+			chip->read_buf(mtd, p, eccsize);
+			stat = chip->ecc.correct(mtd, p, &ecc_code[i], &ecc_calc[i]);
+			if (stat < 0)
+				mtd->ecc_stats.failed++;
+			else
+				mtd->ecc_stats.corrected += stat;
+		}
+		else {
+			chip->ecc.hwctl(mtd, NAND_ECC_READ);
+			chip->read_buf(mtd, p, eccsize);
+		}
+	}
+	return 0;
+}
+/**
  * nand_read_page_syndrome - [REPLACABLE] hardware ecc syndrom based page read
  * @mtd:	mtd info structure
  * @chip:	nand chip info structure
@@ -1271,9 +1342,17 @@ static int nand_do_read_ops(struct mtd_info *mtd, loff_t from,
 						bufpoi, page);
 			else if (!aligned && NAND_SUBPAGE_READ(chip) && !oob)
 				ret = chip->ecc.read_subpage(mtd, chip, col, bytes, bufpoi);
-			else
+ 			else {
+#if defined(CONFIG_JZ4740)
+				bufpoi[0] = (uint8_t)page;
+				bufpoi[1] = (uint8_t)(page >> 8);
+				bufpoi[2] = (uint8_t)(page >> 16);
+				bufpoi[3] = (uint8_t)(page >> 24);
+#endif
+
 				ret = chip->ecc.read_page(mtd, chip, bufpoi,
 						page);
+			}
 			if (ret < 0)
 				break;
 
@@ -2791,8 +2870,13 @@ int nand_scan_tail(struct mtd_info *mtd)
 
 	case NAND_ECC_HW:
 		/* Use standard hwecc read page function ? */
-		if (!chip->ecc.read_page)
+		if (!chip->ecc.read_page) {
+#if defined(CONFIG_JZ4740)
+			chip->ecc.read_page = nand_read_page_hwecc_rs;
+#else
 			chip->ecc.read_page = nand_read_page_hwecc;
+#endif
+		}
 		if (!chip->ecc.write_page)
 			chip->ecc.write_page = nand_write_page_hwecc;
 		if (!chip->ecc.read_oob)
diff --git a/examples/standalone/mips.lds b/examples/standalone/mips.lds
index 717b201..d4a45f8 100644
--- a/examples/standalone/mips.lds
+++ b/examples/standalone/mips.lds
@@ -23,8 +23,8 @@
 
 /*
 OUTPUT_FORMAT("elf32-bigmips", "elf32-bigmips", "elf32-bigmips")
-*/
 OUTPUT_FORMAT("elf32-tradbigmips", "elf32-tradbigmips", "elf32-tradbigmips")
+*/
 OUTPUT_ARCH(mips)
 SECTIONS
 {
diff --git a/include/asm-mips/addrspace.h b/include/asm-mips/addrspace.h
index 3a1e6d6..2ee6920 100644
--- a/include/asm-mips/addrspace.h
+++ b/include/asm-mips/addrspace.h
@@ -131,7 +131,7 @@
  * Returns the uncached address of a sdram address
  */
 #ifndef __ASSEMBLY__
-#if defined(CONFIG_SOC_AU1X00) || defined(CONFIG_TB0229)
+#if defined(CONFIG_SOC_AU1X00) || defined(CONFIG_TB0229) || defined(CONFIG_JzRISC)
 /* We use a 36 bit physical address map here and
    cannot access physical memory directly from core */
 #define UNCACHED_SDRAM(a) (((unsigned long)(a)) | 0x20000000)
diff --git a/include/asm-mips/global_data.h b/include/asm-mips/global_data.h
index b2c4891..23f597e 100644
--- a/include/asm-mips/global_data.h
+++ b/include/asm-mips/global_data.h
@@ -39,6 +39,17 @@
 typedef	struct	global_data {
 	bd_t		*bd;
 	unsigned long	flags;
+#if defined(CONFIG_JZSOC)
+        /* There are other clocks in the Jz47xx or Jz5730*/
+        unsigned long   cpu_clk;        /* CPU core clock */
+        unsigned long   sys_clk;        /* System bus clock */
+        unsigned long   per_clk;        /* Peripheral bus clock */
+        unsigned long   mem_clk;        /* Memory bus clock */
+        unsigned long   dev_clk;        /* Device clock */
+        unsigned long   fb_base;        /* base address of framebuffer */
+        unsigned long   boot_option;	/* 1: boot from sd
+					 * 5: boot delay for 5 secs*/
+#endif
 	unsigned long	baudrate;
 	unsigned long	have_console;	/* serial_init() was called */
 	phys_size_t	ram_size;	/* RAM size */
diff --git a/include/lcd.h b/include/lcd.h
index 1f85daa..997e246 100644
--- a/include/lcd.h
+++ b/include/lcd.h
@@ -181,8 +181,44 @@ typedef struct vidinfo {
 	u_long	mmio;		/* Memory mapped registers */
 } vidinfo_t;
 
-#else
+#elif defined(CONFIG_JZSOC)
+/*
+ * LCD controller stucture for JZSOC: JZ4730 JZ4740
+ */
+struct jz_fb_dma_descriptor {
+	u_long	fdadr;		/* Frame descriptor address register */
+	u_long	fsadr;		/* Frame source address register */
+	u_long	fidr;		/* Frame ID register */
+	u_long	ldcmd;		/* Command register */
+};
 
+/*
+ * Jz LCD info
+ */
+struct jz_fb_info {
+
+	u_long	fdadr0;	/* physical address of frame/palette descriptor */
+	u_long	fdadr1;	/* physical address of frame descriptor */
+
+	/* DMA descriptors */
+	struct	jz_fb_dma_descriptor *	dmadesc_fblow;
+	struct	jz_fb_dma_descriptor *	dmadesc_fbhigh;
+	struct	jz_fb_dma_descriptor *	dmadesc_palette;
+	u_long	screen;		/* address of frame buffer */
+	u_long	palette;	/* address of palette memory */
+	u_int	palette_size;
+};
+typedef struct vidinfo {
+	ushort	vl_col;		/* Number of columns (i.e. 640) */
+	ushort	vl_row;		/* Number of rows (i.e. 480) */
+	u_char	vl_bpix;	/* Bits per pixel, 0 = 1, 1 = 2, 2 = 4, 3 = 8 */
+
+	struct jz_fb_info jz_fb;
+} vidinfo_t;
+
+extern vidinfo_t panel_info;
+
+#else
 typedef struct vidinfo {
 	ushort	vl_col;		/* Number of columns (i.e. 160) */
 	ushort	vl_row;		/* Number of rows (i.e. 100) */
@@ -194,7 +230,7 @@ typedef struct vidinfo {
 	void	*priv;		/* Pointer to driver-specific data */
 } vidinfo_t;
 
-#endif /* CONFIG_MPC823, CONFIG_PXA250 or CONFIG_MCC200 or CONFIG_ATMEL_LCD */
+#endif /* CONFIG_MPC823, CONFIG_PXA250, CONFIG_MCC200 or CONFIG_JZ4740 */
 
 extern vidinfo_t panel_info;
 
@@ -234,6 +270,7 @@ void lcd_show_board_info(void);
 #define LCD_COLOR4	2
 #define LCD_COLOR8	3
 #define LCD_COLOR16	4
+#define LCD_COLOR32     5
 
 /*----------------------------------------------------------------------*/
 #if defined(CONFIG_LCD_INFO_BELOW_LOGO)
@@ -285,13 +322,22 @@ void lcd_show_board_info(void);
 # define CONSOLE_COLOR_GREY	14
 # define CONSOLE_COLOR_WHITE	15	/* Must remain last / highest	*/
 
-#else
+#elif LCD_BPP == LCD_COLOR16
 
 /*
  * 16bpp color definitions
  */
 # define CONSOLE_COLOR_BLACK	0x0000
-# define CONSOLE_COLOR_WHITE	0xffff	/* Must remain last / highest	*/
+# define CONSOLE_COLOR_WHITE	0xffff	/* Must remain last / highest */
+
+#elif LCD_BPP == LCD_COLOR32
+/*
+ * 18,24,32 bpp color definitions
+ */
+# define CONSOLE_COLOR_BLACK	0x00000000
+# define CONSOLE_COLOR_WHITE	0xffffffff /* Must remain last / highest */
+
+#else
 
 #endif /* color definitions */
 
@@ -322,7 +368,7 @@ void lcd_show_board_info(void);
 #if LCD_BPP == LCD_MONOCHROME
 # define COLOR_MASK(c)		((c)	  | (c) << 1 | (c) << 2 | (c) << 3 | \
 				 (c) << 4 | (c) << 5 | (c) << 6 | (c) << 7)
-#elif (LCD_BPP == LCD_COLOR8) || (LCD_BPP == LCD_COLOR16)
+#elif (LCD_BPP == LCD_COLOR8) || (LCD_BPP == LCD_COLOR16) || (LCD_BPP == LCD_COLOR32)
 # define COLOR_MASK(c)		(c)
 #else
 # error Unsupported LCD BPP.
diff --git a/lib_mips/board.c b/lib_mips/board.c
index b2d113e..87cb12d 100644
--- a/lib_mips/board.c
+++ b/lib_mips/board.c
@@ -49,6 +49,10 @@ DECLARE_GLOBAL_DATA_PTR;
 
 #undef DEBUG
 
+#if defined(CONFIG_JZSOC)
+extern int jz_board_init(void);
+#endif
+
 extern int timer_init(void);
 
 extern int incaip_set_cpuclk(void);
@@ -78,7 +82,6 @@ int __board_early_init_f(void)
 }
 int board_early_init_f(void) __attribute__((weak, alias("__board_early_init_f")));
 
-
 static int init_func_ram (void)
 {
 #ifdef	CONFIG_BOARD_TYPES
@@ -98,7 +101,6 @@ static int init_func_ram (void)
 
 static int display_banner(void)
 {
-
 	printf ("\n\n%s\n\n", version_string);
 	return (0);
 }
@@ -147,6 +149,9 @@ static int init_baudrate (void)
 typedef int (init_fnc_t) (void);
 
 init_fnc_t *init_sequence[] = {
+#if defined(CONFIG_JZSOC)
+	jz_board_init,		/* init gpio/clocks/dram etc. */
+#endif
 	board_early_init_f,
 	timer_init,
 	env_init,		/* initialize environment */
@@ -162,7 +167,6 @@ init_fnc_t *init_sequence[] = {
 	NULL,
 };
 
-
 void board_init_f(ulong bootflag)
 {
 	gd_t gd_data, *id;
@@ -202,6 +206,12 @@ void board_init_f(ulong bootflag)
 	addr &= ~(4096 - 1);
 	debug ("Top of RAM usable for U-Boot at: %08lx\n", addr);
 
+#ifdef CONFIG_LCD
+        /* reserve memory for LCD display (always full pages) */
+        addr = lcd_setmem (addr);
+        gd->fb_base = addr;
+#endif /* CONFIG_LCD */
+
 	/* Reserve memory for U-Boot code, data & bss
 	 * round down to next 16 kB limit
 	 */
@@ -349,9 +359,9 @@ void board_init_r (gd_t *id, ulong dest_addr)
 	size = flash_init();
 	display_flash_config (size);
 	bd->bi_flashsize = size;
+	bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
 #endif
 
-	bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
 #if CONFIG_SYS_MONITOR_BASE == CONFIG_SYS_FLASH_BASE
 	bd->bi_flashoffset = monitor_flash_len;	/* reserved area for U-Boot */
 #else
diff --git a/lib_mips/bootm.c b/lib_mips/bootm.c
index 54af24c..64bcad9 100644
--- a/lib_mips/bootm.c
+++ b/lib_mips/bootm.c
@@ -46,7 +46,9 @@ static void linux_env_set (char * env_name, char * env_val);
 int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images)
 {
 	void	(*theKernel) (int, char **, char **, int *);
-	char	*commandline = getenv ("bootargs");
+	char	*commandline = gd->boot_option == 1 ? 
+		getenv ("bootargsfromsd") :
+		getenv ("bootargs");
 	char	env_buf[12];
 	char	*cp;
 
@@ -98,6 +100,9 @@ int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images)
 	}
 
 	/* we assume that the kernel is in place */
+	if (gd->boot_option == 1)
+		printf ("\n *** Booting from mircoSD ***\n");
+
 	printf ("\nStarting kernel ...\n\n");
 
 	theKernel (linux_argc, linux_argv, linux_env, 0);
diff --git a/lib_mips/time.c b/lib_mips/time.c
index 07e356d..4654bf4 100644
--- a/lib_mips/time.c
+++ b/lib_mips/time.c
@@ -24,6 +24,8 @@
 #include <common.h>
 #include <asm/mipsregs.h>
 
+#ifndef CONFIG_JzRISC
+
 static unsigned long timestamp;
 
 /* how many counter cycles in a jiffy */
@@ -96,3 +98,5 @@ ulong get_tbclk(void)
 {
 	return CONFIG_SYS_HZ;
 }
+
+#endif /* !CONFIG_JzRISC */