Merge branch 'master' of git://git.denx.de/u-boot-mpc85xx

MAKEALL

@@ -387,6 +387,9 @@ LIST_83xx="		\
 LIST_85xx="		\
 	ATUM8548	\
 	MPC8536DS	\
+	MPC8536DS_NAND	\
+	MPC8536DS_SDCARD	\
+	MPC8536DS_SPIFLASH	\
 	MPC8540ADS	\
 	MPC8540EVAL	\
 	MPC8541CDS	\

Makefile

@@ -2433,6 +2433,9 @@ vme8349_config:		unconfig
 ATUM8548_config:	unconfig
 	@$(MKCONFIG) $(@:_config=) ppc mpc85xx atum8548
 
+MPC8536DS_NAND_config \
+MPC8536DS_SDCARD_config \
+MPC8536DS_SPIFLASH_config \
 MPC8536DS_36BIT_config \
 MPC8536DS_config:       unconfig
 	@$(MKCONFIG) -t $(@:_config=) MPC8536DS ppc mpc85xx mpc8536ds freescale

board/freescale/mpc8536ds/config.mk

@@ -23,8 +23,27 @@
 #
 # mpc8536ds board
 #
+ifndef NAND_SPL
+ifeq ($(CONFIG_MK_NAND), y)
+TEXT_BASE = $(CONFIG_RAMBOOT_TEXT_BASE)
+LDSCRIPT := $(TOPDIR)/cpu/$(CPU)/u-boot-nand.lds
+endif
+endif
+
+ifeq ($(CONFIG_MK_SDCARD), y)
+TEXT_BASE = $(CONFIG_RAMBOOT_TEXT_BASE)
+RESET_VECTOR_ADDRESS = 0xf8fffffc
+endif
+
+ifeq ($(CONFIG_MK_SPIFLASH), y)
+TEXT_BASE = $(CONFIG_RAMBOOT_TEXT_BASE)
+RESET_VECTOR_ADDRESS = 0xf8fffffc
+endif
+
 ifndef TEXT_BASE
 TEXT_BASE = 0xeff80000
 endif
 
+ifndef RESET_VECTOR_ADDRESS
 RESET_VECTOR_ADDRESS = 0xeffffffc
+endif

board/freescale/mpc8536ds/tlb.c

@@ -71,6 +71,17 @@ struct fsl_e_tlb_entry tlb_table[] = {
 	SET_TLB_ENTRY(1, CONFIG_SYS_NAND_BASE, CONFIG_SYS_NAND_BASE_PHYS,
 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
 		      0, 4, BOOKE_PAGESZ_1M, 1),
+
+#if defined(CONFIG_SYS_RAMBOOT) && defined(CONFIG_SYS_INIT_L2_ADDR)
+	/* *I*G - L2SRAM */
+	SET_TLB_ENTRY(1, CONFIG_SYS_INIT_L2_ADDR, CONFIG_SYS_INIT_L2_ADDR_PHYS,
+		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+		      0, 5, BOOKE_PAGESZ_256K, 1),
+	SET_TLB_ENTRY(1, CONFIG_SYS_INIT_L2_ADDR + 0x40000,
+		      CONFIG_SYS_INIT_L2_ADDR_PHYS + 0x40000,
+		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+		      0, 6, BOOKE_PAGESZ_256K, 1),
+#endif
 };
 
 int num_tlb_entries = ARRAY_SIZE(tlb_table);

board/sbc8548/config.mk

@@ -24,5 +24,5 @@
 # sbc8548 board
 #
 ifndef TEXT_BASE
-TEXT_BASE = 0xfff80000
+TEXT_BASE = 0xfffa0000
 endif

doc/README.mpc8536ds

@@ -0,0 +1,127 @@
+Overview:
+=========
+
+The MPC8536E integrates a PowerPC processor core with system logic
+required for imaging, networking, and communications applications.
+
+Boot from NAND:
+===============
+
+The MPC8536E is capable of booting from NAND flash which uses the image
+u-boot-nand.bin. This image contains two parts: a first stage image(also
+call 4K NAND loader and a second stage image. The former is appended to
+the latter to produce u-boot-nand.bin.
+
+The bootup process can be divided into two stages: the first stage will
+configure the L2SRAM, then copy the second stage image to L2SRAM and jump
+to it. The second stage image is to configure all the hardware and boot up
+to U-Boot command line.
+
+The 4K NAND loader's code comes from the corresponding nand_spl directory,
+along with the code twisted by CONFIG_NAND_SPL. The macro CONFIG_NAND_SPL
+is mainly used to shrink the code size to the 4K size limitation.
+
+The macro CONFIG_SYS_RAMBOOT is used to control the code to produce the
+second stage image. It's set in the board config file when boot from NAND
+is selected.
+
+Build and boot steps
+--------------------
+
+1. Building image
+	make MPC8536DS_NAND_config
+	make CROSS_COMPILE=powerpc-none-linux-gnuspe- all
+
+2. Change dip-switch
+	SW2[5-8] = 1011
+	SW9[1-3] = 101
+	Note: 1 stands for 'on', 0 stands for 'off'
+
+3. Flash image
+	tftp 1000000 u-boot-nand.bin
+	nand erase 0 a0000
+	nand write 1000000 0 a0000
+
+Boot from On-chip ROM:
+======================
+
+The MPC8536E is capable of booting from the on-chip ROM - boot from eSDHC
+and boot from eSPI. When power on, the porcessor excutes the ROM code to
+initialize the eSPI/eSDHC controller, and loads the mian U-Boot image from
+the memory device that interfaced to the controller, such as the SDCard or
+SPI EEPROM, to the target memory, e.g. SDRAM or L2SRAM, then boot from it.
+
+The memory device should contain a specific data structure with control word
+and config word at the fixed address. The config word direct the process how
+to config the memory device, and the control word direct the processor where
+to find the image on the memory device, or where copy the main image to. The
+user can use any method to store the data structure to the memory device, only
+if store it on the assigned address.
+
+Build and boot steps
+--------------------
+
+For boot from eSDHC:
+1. Build image
+	make MPC8536DS_SDCARD_config
+	make CROSS_COMPILE=powerpc-none-linux-gnuspe- all
+
+2. Change dip-switch
+	SW2[5-8] = 0111
+	SW3[1]   = 0
+	SW8[7]   = 0 - The on-board SD/MMC slot is active
+	SW8[7]   = 1 - The externel SD/MMC slot is active
+
+3. Put image to SDCard
+	Put the follwing info at the assigned address on the SDCard:
+
+	   Offset   |   Data     | Description
+	--------------------------------------------------------
+	| 0x40-0x43 | 0x424F4F54 | BOOT signature              |
+	--------------------------------------------------------
+	| 0x48-0x4B | 0x00080000 | u-boot.bin's size           |
+	--------------------------------------------------------
+	| 0x50-0x53 | 0x???????? | u-boot.bin's Addr on SDCard |
+	--------------------------------------------------------
+	| 0x58-0x5B | 0xF8F80000 | Target Address              |
+	-------------------------------------------------------
+	| 0x60-0x63 | 0xF8FFF000 | Execution Starting Address  |
+	--------------------------------------------------------
+	| 0x68-0x6B | 0x6        | Number of Config Addr/Data  |
+	--------------------------------------------------------
+	| 0x80-0x83 | 0xFF720100 | Config Addr 1               |
+	| 0x84-0x87 | 0xF8F80000 | Config Data 1               |
+	--------------------------------------------------------
+	| 0x88-0x8b | 0xFF720e44 | Config Addr 2               |
+	| 0x8c-0x8f | 0x0000000C | Config Data 2               |
+	--------------------------------------------------------
+	| 0x90-0x93 | 0xFF720000 | Config Addr 3               |
+	| 0x94-0x97 | 0x80010000 | Config Data 3               |
+	--------------------------------------------------------
+	| 0x98-0x9b | 0xFF72e40e | Config Addr 4               |
+	| 0x9c-0x9f | 0x00000040 | Config Data 4               |
+	--------------------------------------------------------
+	| 0xa0-0xa3 | 0x40000001 | Config Addr 5               |
+	| 0xa4-0xa7 | 0x00000100 | Config Data 5               |
+	--------------------------------------------------------
+	| 0xa8-0xab | 0x80000001 | Config Addr 6               |
+	| 0xac-0xaf | 0x80000001 | Config Data 6               |
+	--------------------------------------------------------
+	|              ......                                  |
+	--------------------------------------------------------
+	| 0x???????? | u-boot.bin                              |
+	--------------------------------------------------------
+
+	then insert the SDCard to the active slot to boot up.
+
+For boot from eSPI:
+1. Build image
+	make MPC8536DS_SPIFLASH_config
+	make CROSS_COMPILE=powerpc-none-linux-gnuspe- all
+
+2. Change dip-switch
+	SW2[5-8] = 0110
+
+3. Put image to SPI flash
+	Put the info in the above table onto the SPI flash, then
+	boot up.

doc/README.sbc8548

@@ -63,6 +63,30 @@ a 33MHz PCI configuration is currently untested.)
     =>
 
 
+Updating U-boot with U-boot:
+============================
+
+Note that versions of u-boot up to and including 2009.08 had u-boot stored
+at 0xfff8_0000 -> 0xffff_ffff (512k).  Currently it is being stored from
+0xfffa_0000 -> 0xffff_ffff (384k).  If you use an old macro/script to
+update u-boot with u-boot and it uses the old address, you will render
+your board inoperable, and you will require JTAG recovery.
+
+The following steps list how to update with the current address:
+
+	tftp u-boot.bin
+	md 200000 10
+	protect off all
+	erase fffa0000 ffffffff
+	cp.b 200000 fffa0000 60000
+	md fffa0000 10
+	protect on all
+
+The "md" steps in the above are just a precautionary step that allow
+you to confirm the u-boot version that was downloaded, and then confirm
+that it was copied to flash.
+
+
 Hardware Reference:
 ===================
 

drivers/misc/fsl_law.c

@@ -79,6 +79,7 @@ void disable_law(u8 idx)
 	return;
 }
 
+#ifndef CONFIG_NAND_SPL
 static int get_law_entry(u8 i, struct law_entry *e)
 {
 	volatile ccsr_local_t *ccm = (void *)(CONFIG_SYS_FSL_CORENET_CCM_ADDR);
@@ -96,6 +97,7 @@ static int get_law_entry(u8 i, struct law_entry *e)
 
 	return 1;
 }
+#endif
 #else
 void set_law(u8 idx, phys_addr_t addr, enum law_size sz, enum law_trgt_if id)
 {
@@ -130,6 +132,7 @@ void disable_law(u8 idx)
 	return;
 }
 
+#ifndef CONFIG_NAND_SPL
 static int get_law_entry(u8 i, struct law_entry *e)
 {
 	volatile u32 *base = (volatile u32 *)(CONFIG_SYS_IMMR + 0xc08);
@@ -149,6 +152,7 @@ static int get_law_entry(u8 i, struct law_entry *e)
 	return 1;
 }
 #endif
+#endif
 
 int set_next_law(phys_addr_t addr, enum law_size sz, enum law_trgt_if id)
 {

include/configs/MPC8536DS.h

@@ -31,6 +31,22 @@
 #define CONFIG_PHYS_64BIT	1
 #endif
 
+#ifdef CONFIG_MK_NAND
+#define CONFIG_NAND_U_BOOT		1
+#define CONFIG_RAMBOOT_NAND		1
+#define CONFIG_RAMBOOT_TEXT_BASE	0xf8f82000
+#endif
+
+#ifdef CONFIG_MK_SDCARD
+#define CONFIG_RAMBOOT_SDCARD		1
+#define CONFIG_RAMBOOT_TEXT_BASE	0xf8f80000
+#endif
+
+#ifdef CONFIG_MK_SPIFLASH
+#define CONFIG_RAMBOOT_SPIFLASH		1
+#define CONFIG_RAMBOOT_TEXT_BASE	0xf8f80000
+#endif
+
 /* High Level Configuration Options */
 #define CONFIG_BOOKE		1	/* BOOKE */
 #define CONFIG_E500		1	/* BOOKE e500 family */
@@ -86,27 +102,44 @@ extern unsigned long get_board_ddr_clk(unsigned long dummy);
 #define CONFIG_SYS_NUM_ADDR_MAP		16	/* number of TLB1 entries */
 #endif
 
-#define CONFIG_SYS_MEMTEST_START	0x00010000	/* skip exception vectors */
-#define CONFIG_SYS_MEMTEST_END		0x1f000000      /* skip u-boot at top of RAM  */
+#define CONFIG_SYS_MEMTEST_START 0x00010000	/* skip exception vectors */
+#define CONFIG_SYS_MEMTEST_END   0x1f000000	/* skip u-boot at top of RAM */
 #define CONFIG_PANIC_HANG	/* do not reset board on panic */
 
+/*
+ * Config the L2 Cache as L2 SRAM
+ */
+#define CONFIG_SYS_INIT_L2_ADDR		0xf8f80000
+#ifdef CONFIG_PHYS_64BIT
+#define CONFIG_SYS_INIT_L2_ADDR_PHYS	0xff8f80000ull
+#else
+#define CONFIG_SYS_INIT_L2_ADDR_PHYS	CONFIG_SYS_INIT_L2_ADDR
+#endif
+#define CONFIG_SYS_L2_SIZE		(512 << 10)
+#define CONFIG_SYS_INIT_L2_END	(CONFIG_SYS_INIT_L2_ADDR + CONFIG_SYS_L2_SIZE)
+
 /*
  * Base addresses -- Note these are effective addresses where the
  * actual resources get mapped (not physical addresses)
  */
-#define CONFIG_SYS_CCSRBAR_DEFAULT	0xff700000	/* CCSRBAR Default */
 #define CONFIG_SYS_CCSRBAR		0xffe00000	/* relocated CCSRBAR */
 #ifdef CONFIG_PHYS_64BIT
-#define CONFIG_SYS_CCSRBAR_PHYS		0xfffe00000ull	/* physical addr of CCSRBAR */
+#define CONFIG_SYS_CCSRBAR_PHYS	0xfffe00000ull /* physical addr of CCSRBAR */
 #else
-#define CONFIG_SYS_CCSRBAR_PHYS	CONFIG_SYS_CCSRBAR	/* physical addr of CCSRBAR */
+#define CONFIG_SYS_CCSRBAR_PHYS	CONFIG_SYS_CCSRBAR
 #endif
-#define CONFIG_SYS_IMMR		CONFIG_SYS_CCSRBAR	/* PQII uses CONFIG_SYS_IMMR */
+#define CONFIG_SYS_IMMR	CONFIG_SYS_CCSRBAR	/* PQII uses CONFIG_SYS_IMMR */
 
-#define CONFIG_SYS_PCI1_ADDR		(CONFIG_SYS_CCSRBAR+0x8000)
-#define CONFIG_SYS_PCIE1_ADDR		(CONFIG_SYS_CCSRBAR+0xa000)
-#define CONFIG_SYS_PCIE2_ADDR		(CONFIG_SYS_CCSRBAR+0x9000)
-#define CONFIG_SYS_PCIE3_ADDR		(CONFIG_SYS_CCSRBAR+0xb000)
+#if defined(CONFIG_RAMBOOT_NAND) && !defined(CONFIG_NAND_SPL)
+#define CONFIG_SYS_CCSRBAR_DEFAULT	CONFIG_SYS_CCSRBAR
+#else
+#define CONFIG_SYS_CCSRBAR_DEFAULT	0xff700000	/* CCSRBAR Default */
+#endif
+
+#define CONFIG_SYS_PCI1_ADDR		(CONFIG_SYS_CCSRBAR + 0x8000)
+#define CONFIG_SYS_PCIE1_ADDR		(CONFIG_SYS_CCSRBAR + 0xa000)
+#define CONFIG_SYS_PCIE2_ADDR		(CONFIG_SYS_CCSRBAR + 0x9000)
+#define CONFIG_SYS_PCIE3_ADDR		(CONFIG_SYS_CCSRBAR + 0xb000)
 
 /* DDR Setup */
 #define CONFIG_VERY_BIG_RAM
@@ -131,9 +164,9 @@ extern unsigned long get_board_ddr_clk(unsigned long dummy);
 #define CONFIG_SYS_SPD_BUS_NUM		1
 
 /* These are used when DDR doesn't use SPD. */
-#define CONFIG_SYS_SDRAM_SIZE		256		/* DDR is 256MB */
+#define CONFIG_SYS_SDRAM_SIZE		256	/* DDR is 256MB */
 #define CONFIG_SYS_DDR_CS0_BNDS	0x0000001F
-#define CONFIG_SYS_DDR_CS0_CONFIG	0x80010102	/* Enable, no interleaving */
+#define CONFIG_SYS_DDR_CS0_CONFIG	0x80010102 /* Enable, no interleaving */
 #define CONFIG_SYS_DDR_TIMING_3	0x00000000
 #define CONFIG_SYS_DDR_TIMING_0	0x00260802
 #define CONFIG_SYS_DDR_TIMING_1	0x3935d322
@@ -145,7 +178,7 @@ extern unsigned long get_board_ddr_clk(unsigned long dummy);
 #define CONFIG_SYS_DDR_CLK_CTRL	0x03800000
 #define CONFIG_SYS_DDR_OCD_CTRL	0x00000000
 #define CONFIG_SYS_DDR_OCD_STATUS	0x00000000
-#define CONFIG_SYS_DDR_CONTROL		0xC3008000	/* Type = DDR2 */
+#define CONFIG_SYS_DDR_CONTROL	0xC3008000	/* Type = DDR2 */
 #define CONFIG_SYS_DDR_CONTROL2	0x04400010
 
 #define CONFIG_SYS_DDR_ERR_INT_EN	0x0000000d
@@ -190,24 +223,36 @@ extern unsigned long get_board_ddr_clk(unsigned long dummy);
 #define CONFIG_SYS_FLASH_BASE_PHYS	CONFIG_SYS_FLASH_BASE
 #endif
 
-#define CONFIG_SYS_BR0_PRELIM  (BR_PHYS_ADDR((CONFIG_SYS_FLASH_BASE_PHYS + 0x8000000)) | BR_PS_16 | BR_V)
-#define CONFIG_SYS_OR0_PRELIM	0xf8000ff7
+#define CONFIG_FLASH_BR_PRELIM \
+		(BR_PHYS_ADDR((CONFIG_SYS_FLASH_BASE_PHYS + 0x8000000)) \
+		 | BR_PS_16 | BR_V)
+#define CONFIG_FLASH_OR_PRELIM	0xf8000ff7
 
-#define CONFIG_SYS_BR1_PRELIM  (BR_PHYS_ADDR(CONFIG_SYS_FLASH_BASE_PHYS) | BR_PS_16 | BR_V)
+#define CONFIG_SYS_BR1_PRELIM \
+		(BR_PHYS_ADDR(CONFIG_SYS_FLASH_BASE_PHYS) \
+		 | BR_PS_16 | BR_V)
 #define CONFIG_SYS_OR1_PRELIM	0xf8000ff7
 
-#define CONFIG_SYS_FLASH_BANKS_LIST	{CONFIG_SYS_FLASH_BASE_PHYS + 0x8000000, CONFIG_SYS_FLASH_BASE_PHYS}
+#define CONFIG_SYS_FLASH_BANKS_LIST { CONFIG_SYS_FLASH_BASE_PHYS + 0x8000000, \
+				      CONFIG_SYS_FLASH_BASE_PHYS }
 #define CONFIG_SYS_FLASH_QUIET_TEST
 #define CONFIG_FLASH_SHOW_PROGRESS 45 /* count down from 45/5: 9..1 */
 
-#define CONFIG_SYS_MAX_FLASH_BANKS	2		/* number of banks */
-#define CONFIG_SYS_MAX_FLASH_SECT	1024		/* sectors per device */
+#define CONFIG_SYS_MAX_FLASH_BANKS	2	/* number of banks */
+#define CONFIG_SYS_MAX_FLASH_SECT	1024	/* sectors per device */
 #undef	CONFIG_SYS_FLASH_CHECKSUM
-#define CONFIG_SYS_FLASH_ERASE_TOUT	60000		/* Flash Erase Timeout (ms) */
-#define CONFIG_SYS_FLASH_WRITE_TOUT	500		/* Flash Write Timeout (ms) */
+#define CONFIG_SYS_FLASH_ERASE_TOUT	60000	/* Flash Erase Timeout (ms) */
+#define CONFIG_SYS_FLASH_WRITE_TOUT	500	/* Flash Write Timeout (ms) */
 
 #define CONFIG_SYS_MONITOR_BASE	TEXT_BASE	/* start of monitor */
 
+#if defined(CONFIG_SYS_SPL) || defined(CONFIG_RAMBOOT_NAND) \
+	|| defined(CONFIG_RAMBOOT_SDCARD) || defined(CONFIG_RAMBOOT_SPIFLASH)
+#define CONFIG_SYS_RAMBOOT
+#else
+#undef CONFIG_SYS_RAMBOOT
+#endif
+
 #define CONFIG_FLASH_CFI_DRIVER
 #define CONFIG_SYS_FLASH_CFI
 #define CONFIG_SYS_FLASH_EMPTY_INFO
@@ -224,7 +269,7 @@ extern unsigned long get_board_ddr_clk(unsigned long dummy);
 #endif
 
 #define CONFIG_SYS_BR3_PRELIM	(BR_PHYS_ADDR(PIXIS_BASE_PHYS) | BR_PS_8 | BR_V)
-#define CONFIG_SYS_OR3_PRELIM		0xffffeff7	/* 32KB but only 4k mapped */
+#define CONFIG_SYS_OR3_PRELIM	0xffffeff7	/* 32KB but only 4k mapped */
 
 #define PIXIS_ID		0x0	/* Board ID at offset 0 */
 #define PIXIS_VER		0x1	/* Board version at offset 1 */
@@ -260,6 +305,8 @@ extern unsigned long get_board_ddr_clk(unsigned long dummy);
 #define PIXIS_VWATCH		0x24    /* Watchdog Register */
 #define PIXIS_LED		0x25    /* LED Register */
 
+#define PIXIS_SPD_SYSCLK	0x7	/* SYSCLK option */
+
 /* old pixis referenced names */
 #define PIXIS_VCLKH		0x19	/* VELA VCLKH register */
 #define PIXIS_VCLKL		0x1A	/* VELA VCLKL register */
@@ -270,18 +317,28 @@ extern unsigned long get_board_ddr_clk(unsigned long dummy);
 #define CONFIG_SYS_INIT_RAM_END	0x00004000	/* End of used area in RAM */
 
 #define CONFIG_SYS_GBL_DATA_SIZE	128	/* num bytes initial data */
-#define CONFIG_SYS_GBL_DATA_OFFSET	(CONFIG_SYS_INIT_RAM_END - CONFIG_SYS_GBL_DATA_SIZE)
+#define CONFIG_SYS_GBL_DATA_OFFSET \
+		(CONFIG_SYS_INIT_RAM_END - CONFIG_SYS_GBL_DATA_SIZE)
 #define CONFIG_SYS_INIT_SP_OFFSET	CONFIG_SYS_GBL_DATA_OFFSET
 
-#define CONFIG_SYS_MONITOR_LEN		(256 * 1024) /* Reserve 256 kB for Mon */
-#define CONFIG_SYS_MALLOC_LEN		(1024 * 1024)	/* Reserved for malloc */
+#define CONFIG_SYS_MONITOR_LEN	(256 * 1024) /* Reserve 256 kB for Mon */
+#define CONFIG_SYS_MALLOC_LEN	(1024 * 1024)	/* Reserved for malloc */
 
+#ifndef CONFIG_NAND_SPL
 #define CONFIG_SYS_NAND_BASE		0xffa00000
 #ifdef CONFIG_PHYS_64BIT
 #define CONFIG_SYS_NAND_BASE_PHYS	0xfffa00000ull
 #else
 #define CONFIG_SYS_NAND_BASE_PHYS	CONFIG_SYS_NAND_BASE
 #endif
+#else
+#define CONFIG_SYS_NAND_BASE		0xfff00000
+#ifdef CONFIG_PHYS_64BIT
+#define CONFIG_SYS_NAND_BASE_PHYS	0xffff00000ull
+#else
+#define CONFIG_SYS_NAND_BASE_PHYS	CONFIG_SYS_NAND_BASE
+#endif
+#endif
 #define CONFIG_SYS_NAND_BASE_LIST     { CONFIG_SYS_NAND_BASE,\
 				CONFIG_SYS_NAND_BASE + 0x40000, \
 				CONFIG_SYS_NAND_BASE + 0x80000, \
@@ -292,43 +349,66 @@ extern unsigned long get_board_ddr_clk(unsigned long dummy);
 #define CONFIG_NAND_FSL_ELBC	1
 #define CONFIG_SYS_NAND_BLOCK_SIZE	(128 * 1024)
 
+/* NAND boot: 4K NAND loader config */
+#define CONFIG_SYS_NAND_SPL_SIZE	0x1000
+#define CONFIG_SYS_NAND_U_BOOT_SIZE	((512 << 10) - 0x2000)
+#define CONFIG_SYS_NAND_U_BOOT_DST	(CONFIG_SYS_INIT_L2_ADDR)
+#define CONFIG_SYS_NAND_U_BOOT_START \
+		(CONFIG_SYS_INIT_L2_ADDR + CONFIG_SYS_NAND_SPL_SIZE)
+#define CONFIG_SYS_NAND_U_BOOT_OFFS	(0)
+#define CONFIG_SYS_NAND_U_BOOT_RELOC	(CONFIG_SYS_INIT_L2_END - 0x2000)
+#define CONFIG_SYS_NAND_U_BOOT_RELOC_SP ((CONFIG_SYS_INIT_L2_END - 1) & ~0xF)
+
 /* NAND flash config */
-#define CONFIG_NAND_BR_PRELIM  (BR_PHYS_ADDR(CONFIG_SYS_NAND_BASE_PHYS) \
-				| (2<<BR_DECC_SHIFT)    /* Use HW ECC */ \
-				| BR_PS_8              /* Port Size = 8 bit */ \
-				| BR_MS_FCM             /* MSEL = FCM */ \
-				| BR_V)                 /* valid */
-#define CONFIG_NAND_OR_PRELIM	(0xFFFC0000            /* length 256K */ \
-				| OR_FCM_PGS            /* Large Page*/ \
-				| OR_FCM_CSCT \
-				| OR_FCM_CST \
-				| OR_FCM_CHT \
-				| OR_FCM_SCY_1 \
-				| OR_FCM_TRLX \
-				| OR_FCM_EHTR)
-
-#define CONFIG_SYS_BR2_PRELIM  CONFIG_NAND_BR_PRELIM  /* NAND Base Address */
-#define CONFIG_SYS_OR2_PRELIM  CONFIG_NAND_OR_PRELIM  /* NAND Options */
-
-#define CONFIG_SYS_BR4_PRELIM  (BR_PHYS_ADDR((CONFIG_SYS_NAND_BASE_PHYS + 0x40000))\
-				| (2<<BR_DECC_SHIFT)    /* Use HW ECC */ \
-				| BR_PS_8              /* Port Size = 8 bit */ \
-				| BR_MS_FCM             /* MSEL = FCM */ \
-				| BR_V)                 /* valid */
-#define CONFIG_SYS_OR4_PRELIM	CONFIG_NAND_OR_PRELIM     /* NAND Options */
-#define CONFIG_SYS_BR5_PRELIM  (BR_PHYS_ADDR((CONFIG_SYS_NAND_BASE_PHYS + 0x80000))\
-				| (2<<BR_DECC_SHIFT)    /* Use HW ECC */ \
-				| BR_PS_8              /* Port Size = 8 bit */ \
-				| BR_MS_FCM             /* MSEL = FCM */ \
-				| BR_V)                 /* valid */
-#define CONFIG_SYS_OR5_PRELIM	CONFIG_NAND_OR_PRELIM     /* NAND Options */
-
-#define CONFIG_SYS_BR6_PRELIM  (BR_PHYS_ADDR((CONFIG_SYS_NAND_BASE_PHYS + 0xc0000))\
-				| (2<<BR_DECC_SHIFT)    /* Use HW ECC */ \
-				| BR_PS_8              /* Port Size = 8 bit */ \
-				| BR_MS_FCM             /* MSEL = FCM */ \
-				| BR_V)                 /* valid */
-#define CONFIG_SYS_OR6_PRELIM	CONFIG_NAND_OR_PRELIM     /* NAND Options */
+#define CONFIG_NAND_BR_PRELIM \
+		(BR_PHYS_ADDR(CONFIG_SYS_NAND_BASE_PHYS) \
+		| (2<<BR_DECC_SHIFT)	/* Use HW ECC */ \
+		| BR_PS_8		/* Port Size = 8 bit */ \
+		| BR_MS_FCM		/* MSEL = FCM */ \
+		| BR_V)			/* valid */
+#define CONFIG_NAND_OR_PRELIM	(0xFFFC0000	/* length 256K */ \
+		| OR_FCM_PGS		/* Large Page*/ \
+		| OR_FCM_CSCT \
+		| OR_FCM_CST \
+		| OR_FCM_CHT \
+		| OR_FCM_SCY_1 \
+		| OR_FCM_TRLX \
+		| OR_FCM_EHTR)
+
+#ifdef CONFIG_RAMBOOT_NAND
+#define CONFIG_SYS_BR0_PRELIM  CONFIG_NAND_BR_PRELIM	/* NAND Base Address */
+#define CONFIG_SYS_OR0_PRELIM  CONFIG_NAND_OR_PRELIM	/* NAND Options */
+#define CONFIG_SYS_BR2_PRELIM  CONFIG_FLASH_BR_PRELIM	/* NOR Base Address */
+#define CONFIG_SYS_OR2_PRELIM  CONFIG_FLASH_OR_PRELIM	/* NOR Options */
+#else
+#define CONFIG_SYS_BR0_PRELIM  CONFIG_FLASH_BR_PRELIM	/* NOR Base Address */
+#define CONFIG_SYS_OR0_PRELIM  CONFIG_FLASH_OR_PRELIM	/* NOR Options */
+#define CONFIG_SYS_BR2_PRELIM  CONFIG_NAND_BR_PRELIM	/* NAND Base Address */
+#define CONFIG_SYS_OR2_PRELIM  CONFIG_NAND_OR_PRELIM	/* NAND Options */
+#endif
+
+#define CONFIG_SYS_BR4_PRELIM \
+		(BR_PHYS_ADDR((CONFIG_SYS_NAND_BASE_PHYS + 0x40000)) \
+		| (2<<BR_DECC_SHIFT)	/* Use HW ECC */ \
+		| BR_PS_8		/* Port Size = 8 bit */ \
+		| BR_MS_FCM		/* MSEL = FCM */ \
+		| BR_V)			/* valid */
+#define CONFIG_SYS_OR4_PRELIM	CONFIG_NAND_OR_PRELIM	/* NAND Options */
+#define CONFIG_SYS_BR5_PRELIM \
+		(BR_PHYS_ADDR((CONFIG_SYS_NAND_BASE_PHYS + 0x80000)) \
+		| (2<<BR_DECC_SHIFT)	/* Use HW ECC */ \
+		| BR_PS_8		/* Port Size = 8 bit */ \
+		| BR_MS_FCM		/* MSEL = FCM */ \
+		| BR_V)			/* valid */
+#define CONFIG_SYS_OR5_PRELIM	CONFIG_NAND_OR_PRELIM	/* NAND Options */
+
+#define CONFIG_SYS_BR6_PRELIM \
+		(BR_PHYS_ADDR((CONFIG_SYS_NAND_BASE_PHYS + 0xc0000)) \
+		| (2<<BR_DECC_SHIFT)	/* Use HW ECC */ \
+		| BR_PS_8		/* Port Size = 8 bit */ \
+		| BR_MS_FCM		/* MSEL = FCM */ \
+		| BR_V)			/* valid */
+#define CONFIG_SYS_OR6_PRELIM	CONFIG_NAND_OR_PRELIM	/* NAND Options */
 
 /* Serial Port - controlled on board with jumper J8
  * open - index 2
@@ -344,8 +424,8 @@ extern unsigned long get_board_ddr_clk(unsigned long dummy);
 #define CONFIG_SYS_BAUDRATE_TABLE	\
 	{300, 600, 1200, 2400, 4800, 9600, 19200, 38400,115200}
 
-#define CONFIG_SYS_NS16550_COM1	(CONFIG_SYS_CCSRBAR+0x4500)
-#define CONFIG_SYS_NS16550_COM2	(CONFIG_SYS_CCSRBAR+0x4600)
+#define CONFIG_SYS_NS16550_COM1	(CONFIG_SYS_CCSRBAR + 0x4500)
+#define CONFIG_SYS_NS16550_COM2	(CONFIG_SYS_CCSRBAR + 0x4600)
 
 /* Use the HUSH parser */
 #define CONFIG_SYS_HUSH_PARSER
@@ -360,8 +440,8 @@ extern unsigned long get_board_ddr_clk(unsigned long dummy);
 #define CONFIG_OF_BOARD_SETUP		1
 #define CONFIG_OF_STDOUT_VIA_ALIAS	1
 
-#define CONFIG_SYS_64BIT_STRTOUL		1
-#define CONFIG_SYS_64BIT_VSPRINTF		1
+#define CONFIG_SYS_64BIT_STRTOUL	1
+#define CONFIG_SYS_64BIT_VSPRINTF	1
 
 
 /*
@@ -526,15 +606,6 @@ extern unsigned long get_board_ddr_clk(unsigned long dummy);
 #define CONFIG_CMD_EXT2
 #endif
 
-/*
- * USB
- */
-#define CONFIG_CMD_USB
-#define CONFIG_USB_STORAGE
-#define CONFIG_USB_EHCI
-#define CONFIG_USB_EHCI_FSL
-#define CONFIG_EHCI_HCD_INIT_AFTER_RESET
-
 #if defined(CONFIG_TSEC_ENET)
 
 #ifndef CONFIG_NET_MULTI
@@ -569,14 +640,27 @@ extern unsigned long get_board_ddr_clk(unsigned long dummy);
 /*
  * Environment
  */
-#define CONFIG_ENV_IS_IN_FLASH	1
-#if CONFIG_SYS_MONITOR_BASE > 0xfff80000
-#define CONFIG_ENV_ADDR		0xfff80000
+
+#if defined(CONFIG_SYS_RAMBOOT)
+#if defined(CONFIG_RAMBOOT_NAND)
+	#define CONFIG_ENV_IS_IN_NAND	1
+	#define CONFIG_ENV_SIZE		CONFIG_SYS_NAND_BLOCK_SIZE
+	#define CONFIG_ENV_OFFSET ((512 * 1024) + CONFIG_SYS_NAND_BLOCK_SIZE)
+#elif defined(CONFIG_RAMBOOT_SDCARD) || defined(CONFIG_RAMBOOT_SPIFLASH)
+	#define CONFIG_ENV_IS_NOWHERE	1	/* Store ENV in memory only */
+	#define CONFIG_ENV_ADDR		(CONFIG_SYS_MONITOR_BASE - 0x1000)
+	#define CONFIG_ENV_SIZE		0x2000
+#endif
 #else
-#define CONFIG_ENV_ADDR		(CONFIG_SYS_MONITOR_BASE - CONFIG_ENV_SECT_SIZE)
+	#define CONFIG_ENV_IS_IN_FLASH	1
+	#if CONFIG_SYS_MONITOR_BASE > 0xfff80000
+	#define CONFIG_ENV_ADDR		0xfff80000
+	#else
+	#define CONFIG_ENV_ADDR	(CONFIG_SYS_MONITOR_BASE - CONFIG_ENV_SECT_SIZE)
+	#endif
+	#define CONFIG_ENV_SIZE		0x2000
+	#define CONFIG_ENV_SECT_SIZE	0x20000 /* 128K (one sector) */
 #endif
-#define CONFIG_ENV_SIZE		0x2000
-#define CONFIG_ENV_SECT_SIZE	0x20000 /* 128K (one sector) */
 
 #define CONFIG_LOADS_ECHO	1	/* echo on for serial download */
 #define CONFIG_SYS_LOADS_BAUD_CHANGE	1	/* allow baudrate change */
@@ -617,7 +701,7 @@ extern unsigned long get_board_ddr_clk(unsigned long dummy);
  * Miscellaneous configurable options
  */
 #define CONFIG_SYS_LONGHELP			/* undef to save memory	*/
-#define CONFIG_CMDLINE_EDITING		/* Command-line editing */
+#define CONFIG_CMDLINE_EDITING			/* Command-line editing */
 #define CONFIG_SYS_LOAD_ADDR	0x2000000	/* default load address */
 #define CONFIG_SYS_PROMPT	"=> "		/* Monitor Command Prompt */
 #if defined(CONFIG_CMD_KGDB)
@@ -625,9 +709,10 @@ extern unsigned long get_board_ddr_clk(unsigned long dummy);
 #else
 #define CONFIG_SYS_CBSIZE	256		/* Console I/O Buffer Size */
 #endif
-#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE+sizeof(CONFIG_SYS_PROMPT)+16) /* Print Buffer Size */
+#define CONFIG_SYS_PBSIZE	(CONFIG_SYS_CBSIZE \
+		+ sizeof(CONFIG_SYS_PROMPT) + 16) /* Print Buffer Size */
 #define CONFIG_SYS_MAXARGS	16		/* max number of command args */
-#define CONFIG_SYS_BARGSIZE	CONFIG_SYS_CBSIZE	/* Boot Argument Buffer Size */
+#define CONFIG_SYS_BARGSIZE	CONFIG_SYS_CBSIZE /* Boot Argument Buffer Size */
 #define CONFIG_SYS_HZ		1000		/* decrementer freq: 1ms ticks */
 
 /*
@@ -635,7 +720,7 @@ extern unsigned long get_board_ddr_clk(unsigned long dummy);
  * have to be in the first 16 MB of memory, since this is
  * the maximum mapped by the Linux kernel during initialization.
  */
-#define CONFIG_SYS_BOOTMAPSZ	(16 << 20)	/* Initial Memory map for Linux*/
+#define CONFIG_SYS_BOOTMAPSZ	(16 << 20) /* Initial Memory map for Linux */
 
 /*
  * Internal Definitions
@@ -671,7 +756,7 @@ extern unsigned long get_board_ddr_clk(unsigned long dummy);
 #define CONFIG_HOSTNAME		unknown
 #define CONFIG_ROOTPATH		/opt/nfsroot
 #define CONFIG_BOOTFILE		uImage
-#define CONFIG_UBOOTPATH	u-boot.bin	/* U-Boot image on TFTP server */
+#define CONFIG_UBOOTPATH	u-boot.bin /* U-Boot image on TFTP server */
 
 #define CONFIG_SERVERIP		192.168.1.1
 #define CONFIG_GATEWAYIP	192.168.1.1

include/configs/sbc8548.h

@@ -330,7 +330,14 @@
 #define CONFIG_SYS_GBL_DATA_OFFSET	(CONFIG_SYS_INIT_RAM_END - CONFIG_SYS_GBL_DATA_SIZE)
 #define CONFIG_SYS_INIT_SP_OFFSET	CONFIG_SYS_GBL_DATA_OFFSET
 
-#define CONFIG_SYS_MONITOR_LEN		(256 * 1024) /* Reserve 256 kB for Mon */
+/*
+ * For soldered on flash, (128kB/sector) we use 2 sectors for u-boot and
+ * one for env+bootpg (TEXT_BASE=0xfffa_0000, 384kB total).  For SODIMM
+ * flash (512kB/sector) we use 1 sector for u-boot, and one for env+bootpg
+ * (TEXT_BASE=0xfff0_0000, 1MB total).  This dynamically sets the right
+ * thing for MONITOR_LEN in both cases.
+ */
+#define CONFIG_SYS_MONITOR_LEN		(~TEXT_BASE + 1)
 #define CONFIG_SYS_MALLOC_LEN		(128 * 1024)	/* Reserved for malloc */
 
 /* Serial Port */
@@ -448,9 +455,16 @@
  * Environment
  */
 #define CONFIG_ENV_IS_IN_FLASH	1
-#define CONFIG_ENV_ADDR		(CONFIG_SYS_MONITOR_BASE + 0x40000)
-#define CONFIG_ENV_SECT_SIZE	0x40000	/* 256K(one sector) for env */
 #define CONFIG_ENV_SIZE		0x2000
+#if TEXT_BASE == 0xfff00000	/* Boot from 64MB SODIMM */
+#define CONFIG_ENV_ADDR		(CONFIG_SYS_MONITOR_BASE + 0x80000)
+#define CONFIG_ENV_SECT_SIZE	0x80000	/* 512K(one sector) for env */
+#elif TEXT_BASE == 0xfffa0000	/* Boot from 8MB soldered flash */
+#define CONFIG_ENV_ADDR		(CONFIG_SYS_MONITOR_BASE + 0x40000)
+#define CONFIG_ENV_SECT_SIZE	0x20000	/* 128K(one sector) for env */
+#else
+#warning undefined environment size/location.
+#endif
 
 #define CONFIG_LOADS_ECHO	1	/* echo on for serial download */
 #define CONFIG_SYS_LOADS_BAUD_CHANGE	1	/* allow baudrate change */

nand_spl/board/freescale/mpc8536ds/Makefile

@@ -0,0 +1,127 @@
+#
+# (C) Copyright 2007
+# Stefan Roese, DENX Software Engineering, sr@denx.de.
+#
+# Copyright 2009 Freescale Semiconductor, Inc.
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+# MA 02111-1307 USA
+#
+
+NAND_SPL := y
+TEXT_BASE := 0xfff00000
+PAD_TO := 0xfff01000
+
+include $(TOPDIR)/config.mk
+
+LDSCRIPT= $(TOPDIR)/cpu/$(CPU)/u-boot-nand_spl.lds
+LDFLAGS	= -Bstatic -T $(LDSCRIPT) -Ttext $(TEXT_BASE) $(PLATFORM_LDFLAGS)
+AFLAGS	+= -DCONFIG_NAND_SPL
+CFLAGS	+= -DCONFIG_NAND_SPL
+
+SOBJS	= start.o resetvec.o
+COBJS	= cache.o cpu_init_early.o cpu_init_nand.o fsl_law.o law.o \
+	  nand_boot.o nand_boot_fsl_elbc.o ns16550.o tlb.o tlb_table.o
+
+SRCS	:= $(addprefix $(obj),$(SOBJS:.o=.S) $(COBJS:.o=.c))
+OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS))
+__OBJS	:= $(SOBJS) $(COBJS)
+LNDIR	:= $(OBJTREE)/nand_spl/board/$(BOARDDIR)
+
+nandobj	:= $(OBJTREE)/nand_spl/
+
+ALL	= $(nandobj)u-boot-spl $(nandobj)u-boot-spl.bin $(nandobj)u-boot-spl-16k.bin
+
+all:	$(obj).depend $(ALL)
+
+$(nandobj)u-boot-spl-16k.bin: $(nandobj)u-boot-spl
+	$(OBJCOPY) ${OBJCFLAGS} --pad-to=$(PAD_TO) -O binary $< $@
+
+$(nandobj)u-boot-spl.bin:	$(nandobj)u-boot-spl
+	$(OBJCOPY) ${OBJCFLAGS} -O binary $< $@
+
+$(nandobj)u-boot-spl:	$(OBJS)
+	cd $(LNDIR) && $(LD) $(LDFLAGS) $(__OBJS) $(PLATFORM_LIBS) \
+		-Map $(nandobj)u-boot-spl.map \
+		-o $(nandobj)u-boot-spl
+
+# create symbolic links for common files
+
+$(obj)cache.c:
+	@rm -f $(obj)cache.c
+	ln -sf $(SRCTREE)/lib_ppc/cache.c $(obj)cache.c
+
+$(obj)cpu_init_early.c:
+	@rm -f $(obj)cpu_init_early.c
+	ln -sf $(SRCTREE)/cpu/mpc85xx/cpu_init_early.c $(obj)cpu_init_early.c
+
+$(obj)cpu_init_nand.c:
+	@rm -f $(obj)cpu_init_nand.c
+	ln -sf $(SRCTREE)/cpu/mpc85xx/cpu_init_nand.c $(obj)cpu_init_nand.c
+
+$(obj)fsl_law.c:
+	@rm -f $(obj)fsl_law.c
+	ln -sf $(SRCTREE)/drivers/misc/fsl_law.c $(obj)fsl_law.c
+
+$(obj)law.c:
+	@rm -f $(obj)law.c
+	ln -sf $(SRCTREE)/board/$(BOARDDIR)/law.c $(obj)law.c
+
+$(obj)nand_boot_fsl_elbc.c:
+	@rm -f $(obj)nand_boot_fsl_elbc.c
+	ln -sf $(SRCTREE)/nand_spl/nand_boot_fsl_elbc.c \
+	       $(obj)nand_boot_fsl_elbc.c
+
+$(obj)ns16550.c:
+	@rm -f $(obj)ns16550.c
+	ln -sf $(SRCTREE)/drivers/serial/ns16550.c $(obj)ns16550.c
+
+$(obj)resetvec.S:
+	@rm -f $(obj)resetvec.S
+	ln -s $(SRCTREE)/cpu/$(CPU)/resetvec.S $(obj)resetvec.S
+
+$(obj)fixed_ivor.S:
+	@rm -f $(obj)fixed_ivor.S
+	ln -sf $(SRCTREE)/cpu/mpc85xx/fixed_ivor.S $(obj)fixed_ivor.S
+
+$(obj)start.S: $(obj)fixed_ivor.S
+	@rm -f $(obj)start.S
+	ln -sf $(SRCTREE)/cpu/mpc85xx/start.S $(obj)start.S
+
+$(obj)tlb.c:
+	@rm -f $(obj)tlb.c
+	ln -sf $(SRCTREE)/cpu/mpc85xx/tlb.c $(obj)tlb.c
+
+$(obj)tlb_table.c:
+	@rm -f $(obj)tlb_table.c
+	ln -sf $(SRCTREE)/board/$(BOARDDIR)/tlb.c $(obj)tlb_table.c
+
+#########################################################################
+
+$(obj)%.o:	$(obj)%.S
+	$(CC) $(AFLAGS) -c -o $@ $<
+
+$(obj)%.o:	$(obj)%.c
+	$(CC) $(CFLAGS) -c -o $@ $<
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################

nand_spl/board/freescale/mpc8536ds/nand_boot.c

@@ -0,0 +1,83 @@
+/*
+ * Copyright 2009 Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ *
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ *
+ */
+
+#include <common.h>
+#include <ns16550.h>
+#include <asm/io.h>
+#include <nand.h>
+
+u32 sysclk_tbl[] = {
+	33333000, 39999600, 49999500, 66666000,
+	83332500, 99999000, 133332000, 166665000
+};
+
+void board_init_f(ulong bootflag)
+{
+	int px_spd;
+	u32 plat_ratio, bus_clk, sys_clk;
+	ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR;
+	ccsr_lbc_t *lbc = (void *)CONFIG_SYS_MPC85xx_LBC_ADDR;
+
+#if defined(CONFIG_SYS_BR3_PRELIM) && defined(CONFIG_SYS_OR3_PRELIM)
+	/* for FPGA */
+	out_be32(&lbc->br3, CONFIG_SYS_BR3_PRELIM);
+	out_be32(&lbc->or3, CONFIG_SYS_OR3_PRELIM);
+#else
+#error CONFIG_SYS_BR3_PRELIM, CONFIG_SYS_OR3_PRELIM must be defined
+#endif
+
+	/* initialize selected port with appropriate baud rate */
+	px_spd = in_8((unsigned char *)(PIXIS_BASE + PIXIS_SPD));
+	sys_clk = sysclk_tbl[px_spd & PIXIS_SPD_SYSCLK];
+	plat_ratio = in_be32(&gur->porpllsr) & MPC85xx_PORPLLSR_PLAT_RATIO;
+	bus_clk = sys_clk * plat_ratio / 2;
+
+	NS16550_init((NS16550_t)CONFIG_SYS_NS16550_COM1,
+			bus_clk / 16 / CONFIG_BAUDRATE);
+
+	puts("\nNAND boot... ");
+
+	/* copy code to RAM and jump to it - this should not return */
+	/* NOTE - code has to be copied out of NAND buffer before
+	 * other blocks can be read.
+	 */
+	relocate_code(CONFIG_SYS_NAND_U_BOOT_RELOC_SP, 0,
+			CONFIG_SYS_NAND_U_BOOT_RELOC);
+}
+
+void board_init_r(gd_t *gd, ulong dest_addr)
+{
+	nand_boot();
+}
+
+void putc(char c)
+{
+	if (c == '\n')
+		NS16550_putc((NS16550_t)CONFIG_SYS_NS16550_COM1, '\r');
+
+	NS16550_putc((NS16550_t)CONFIG_SYS_NS16550_COM1, c);
+}
+
+void puts(const char *str)
+{
+	while (*str)
+		putc(*str++);
+}