SPL Linux boot

cover

	(http://article.gmane.org/gmane.comp.boot-loaders.u-boot/113499)
 common/Makefile         |    1 +
 common/cmd_spl.c        |  229 +++++++++++++++++++++++++++++++++++++++++++++++
 doc/README.commands.spl |   31 +++++++
 include/cmd_spl.h       |   30 ++++++
 include/image.h         |    2 +
 5 files changed, 293 insertions(+), 0 deletions(-)
 create mode 100644 common/cmd_spl.c
 create mode 100644 doc/README.commands.spl
 create mode 100644 include/cmd_spl.h
index 1be7236..91f3f2e 100644
@@ -165,6 +165,7 @@ COBJS-$(CONFIG_USB_STORAGE) += usb_storage.o
 endif
 COBJS-$(CONFIG_CMD_XIMG) += cmd_ximg.o
 COBJS-$(CONFIG_YAFFS2) += cmd_yaffs2.o
+COBJS-$(CONFIG_CMD_SPL) += cmd_spl.o
 
 # others
 ifdef CONFIG_DDR_SPD

new file mode 100644
index 0000000..818dd53
@@ -0,0 +1,31 @@
+The spl command is used to export a boot parameter image to RAM. Later
+it may implement more functions connected to the SPL.
+
+SUBCOMMAND EXPORT
+To execute the command everything has to be in place as if bootm should be
+used. (kernel image, initrd-image, fdt-image etc.)
+
+export has to subcommands:
+	atags: exports the ATAGS
+	fdt: exports the FDT
+
+Call is:
+spl export <ftd|atags> [kernel_addr] [initrd_addr] [fdt_addr if fdt]
+
+
+TYPICAL CALL
+
+on OMAP3:
+nandecc hw
+nand read 0x82000000 0x280000 0x400000 	/* Read kernel image from NAND*/
+spl export atags 			/* export ATAGS */
+nand erase 0x680000 0x20000		/* erase - one page */
+nand write 0x80000100 0x680000 0x20000	/* write the image - one page */
+
+call with FDT:
+nandecc hw
+nand read 0x82000000 0x280000 0x400000 	/* Read kernel image from NAND*/
+tftpboot 0x80000100 devkit8000.dtb /* Read fdt */
+spl export fdt 0x82000000 - 0x80000100	/* export FDT */
+nand erase 0x680000 0x20000		/* erase - one page */
+nand write <adress shown by spl export> 0x680000 0x20000

new file mode 100644
index 0000000..2845367
@@ -0,0 +1,30 @@
+/* Copyright (C) 2011
+ * Corscience GmbH & Co. KG - Simon Schwarz <[email protected]>
+ *
+ * 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
+ */
+#ifndef _NAND_SPL_H_
+#define	_NAND_SPL_H_
+
+#define SPL_EXPORT	(0x00000001)
+
+#define SPL_EXPORT_FDT		(0x00000001)
+#define SPL_EXPORT_ATAGS	(0x00000002)
+
+#endif /* _NAND_SPL_H_ */

index 466c980..2cc0575 100644
@@ -267,6 +267,8 @@ typedef struct bootm_headers {
 #endif
 } bootm_headers_t;
 
+extern bootm_headers_t images;
+
 /*
  * Some systems (for example LWMON) have very short watchdog periods;
  * we must make sure to split long operations like memmove() or

1.7.5.4
 include/configs/devkit8000.h |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)
index 2b6a6ee..e323877 100644
@@ -351,4 +351,12 @@
 #define CONFIG_SYS_SPL_MALLOC_START	0x80208000
 #define CONFIG_SYS_SPL_MALLOC_SIZE	0x100000	/* 1 MB */
 
+/* SPL OS boot options */
+#define CONFIG_CMD_SPL
+#define CONFIG_CMD_SPL_WRITE_SIZE       0x400 /* 1024 byte */
+#define CONFIG_CMD_SPL_NAND_OFS (CONFIG_SYS_NAND_SPL_KERNEL_OFFS+\
+					0x400000)
+#define CONFIG_SYS_NAND_SPL_KERNEL_OFFS 0x280000
+#define CONFIG_SYS_SPL_ARGS_ADDR        (PHYS_SDRAM_1 + 0x100)
+
 #endif /* __CONFIG_H */

1.7.5.4
=====================================================================
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: +49-8142-66989-0 Fax: +49-8142-66989-80  Email: office at denx.de
=====================================================================
 include/configs/devkit8000.h |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)
index 758326b..d3ca0dd 100644
@@ -356,4 +356,12 @@
 #define CONFIG_SYS_SPL_MALLOC_START	0x80208000
 #define CONFIG_SYS_SPL_MALLOC_SIZE	0x100000	/* 1 MB */
 
+/* SPL OS boot options */
+#define CONFIG_CMD_SPL
+#define CONFIG_CMD_SPL_WRITE_SIZE       0x400 /* 1024 byte */
+#define CONFIG_CMD_SPL_NAND_OFS (CONFIG_SYS_NAND_SPL_KERNEL_OFFS+\
+					0x400000)
+#define CONFIG_SYS_NAND_SPL_KERNEL_OFFS 0x280000
+#define CONFIG_SYS_SPL_ARGS_ADDR        (PHYS_SDRAM_1 + 0x100)
+
 #endif /* __CONFIG_H */

1.7.5.4
	Address where the kernel boot arguments are expected - this is
	normally RAM-start + 0x100 (on ARM)
 arch/arm/cpu/armv7/omap-common/spl_nand.c |   66 ++++++++++++++++++++++-------
 1 files changed, 50 insertions(+), 16 deletions(-)
index 38d06b1..2a66214 100644
@@ -24,6 +24,7 @@
 #include <asm/u-boot.h>
 #include <asm/utils.h>
 #include <asm/arch/sys_proto.h>
+#include <asm/io.h>
 #include <nand.h>
 #include <version.h>
 #include <asm/omap_common.h>

@@ -32,6 +33,9 @@
 void spl_nand_load_image(void)
 {
 	struct image_header *header;
+	int *src __attribute__((unused));
+	int *dst __attribute__((unused));
+
 	switch (omap_boot_mode()) {
 	case NAND_MODE_HW_ECC:
 		debug("spl: nand - using hw ecc\n");

@@ -45,26 +49,56 @@ void spl_nand_load_image(void)
 
 	/*use CONFIG_SYS_TEXT_BASE as temporary storage area */
 	header = (struct image_header *)(CONFIG_SYS_TEXT_BASE);
+#ifdef CONFIG_SPL_OS_BOOT
+	if (!spl_uboot_key()) {
+		/*
+		 * load parameter image
+		 * load to temp position since nand_spl_load_image reads
+		 * a whole block which is typically larger than
+		 * CONFIG_CMD_SAVEBP_WRITE_SIZE therefore may overwrite
+		 * following sections like BSS
+		 */
+		nand_spl_load_image(CONFIG_CMD_SPL_NAND_OFS,
+			CONFIG_CMD_SPL_WRITE_SIZE,
+			(void *)CONFIG_SYS_TEXT_BASE);
+		/* copy to destintion */
+		for (dst = (int *)CONFIG_SYS_SPL_ARGS_ADDR,
+				src = (int *)CONFIG_SYS_TEXT_BASE;
+				src < (int *)(CONFIG_SYS_TEXT_BASE +
+				CONFIG_CMD_SPL_WRITE_SIZE);
+				src++, dst++) {
+			writel(readl(src), dst);
+		}
 
+		/* load linux */
+		nand_spl_load_image(CONFIG_SYS_NAND_SPL_KERNEL_OFFS,
+			CONFIG_SYS_NAND_PAGE_SIZE, (void *)header);
+		spl_parse_image_header(header);
+		nand_spl_load_image(CONFIG_SYS_NAND_SPL_KERNEL_OFFS,
+			spl_image.size, (void *)spl_image.load_addr);
+	} else
+#endif
+	{
 #ifdef CONFIG_NAND_ENV_DST
-	nand_spl_load_image(CONFIG_ENV_OFFSET,
-		CONFIG_SYS_NAND_PAGE_SIZE, (void *)header);
-	spl_parse_image_header(header);
-	nand_spl_load_image(CONFIG_ENV_OFFSET, spl_image.size,
-		(void *)image_load_addr);
+		nand_spl_load_image(CONFIG_ENV_OFFSET,
+			CONFIG_SYS_NAND_PAGE_SIZE, (void *)header);
+		spl_parse_image_header(header);
+		nand_spl_load_image(CONFIG_ENV_OFFSET, spl_image.size,
+			(void *)spl_image.load_addr);
 #ifdef CONFIG_ENV_OFFSET_REDUND
-	nand_spl_load_image(CONFIG_ENV_OFFSET_REDUND,
-		CONFIG_SYS_NAND_PAGE_SIZE, (void *)header);
-	spl_parse_image_header(header);
-	nand_spl_load_image(CONFIG_ENV_OFFSET_REDUND, spl_image.size,
-		(void *)image_load_addr);
+		nand_spl_load_image(CONFIG_ENV_OFFSET_REDUND,
+			CONFIG_SYS_NAND_PAGE_SIZE, (void *)header);
+		spl_parse_image_header(header);
+		nand_spl_load_image(CONFIG_ENV_OFFSET_REDUND, spl_image.size,
+			(void *)spl_image.load_addr);
 #endif
 #endif
-	/* Load u-boot */
-	nand_spl_load_image(CONFIG_SYS_NAND_U_BOOT_OFFS,
-		CONFIG_SYS_NAND_PAGE_SIZE, (void *)header);
-	spl_parse_image_header(header);
-	nand_spl_load_image(CONFIG_SYS_NAND_U_BOOT_OFFS,
-		spl_image.size, (void *)spl_image.load_addr);
+		/* Load u-boot */
+		nand_spl_load_image(CONFIG_SYS_NAND_U_BOOT_OFFS,
+			CONFIG_SYS_NAND_PAGE_SIZE, (void *)header);
+		spl_parse_image_header(header);
+		nand_spl_load_image(CONFIG_SYS_NAND_U_BOOT_OFFS,
+			spl_image.size, (void *)spl_image.load_addr);
+	}
 	nand_deselect();
 }

1.7.5.4
	(http://article.gmane.org/gmane.comp.boot-loaders.u-boot/113500)
 arch/arm/include/asm/omap_common.h  |    2 +
 board/timll/devkit8000/devkit8000.c |   39 +++++++++++++++++++++++++++-------
 2 files changed, 33 insertions(+), 8 deletions(-)
index 1ec651b..62200e5 100644
@@ -87,6 +87,8 @@ u32 omap_boot_mode(void);
 /* SPL common function s*/
 void spl_parse_image_header(const struct image_header *header);
 void omap_rev_string(char *omap_rev_string);
+int spl_uboot_key(void);
+void spl_board_prepare_for_linux(void);
 
 /* NAND SPL functions */
 void spl_nand_load_image(void);

index b06aab6..05de3c1 100644
@@ -63,6 +63,24 @@ int board_init(void)
 	return 0;
 }
 
+static u32 gpmc_net_config[GPMC_MAX_REG] = {
+	NET_GPMC_CONFIG1,
+	NET_GPMC_CONFIG2,
+	NET_GPMC_CONFIG3,
+	NET_GPMC_CONFIG4,
+	NET_GPMC_CONFIG5,
+	NET_GPMC_CONFIG6,
+	NET_GPMC_CONFIG7,
+};
+
+
+/* Configure GPMC registers for DM9000 */
+static void gpmc_dm9000_config(void)
+{
+	enable_gpmc_cs_config(gpmc_net_config, &gpmc_cfg->cs[6],
+		CONFIG_DM9000_BASE, GPMC_SIZE_16M);
+}
+
 /*
  * Routine: misc_init_r
  * Description: Configure board specific parts

@@ -81,14 +99,7 @@ int misc_init_r(void)
 #endif
 
 #ifdef CONFIG_DRIVER_DM9000
-	/* Configure GPMC registers for DM9000 */
-	writel(NET_GPMC_CONFIG1, &gpmc_cfg->cs[6].config1);
-	writel(NET_GPMC_CONFIG2, &gpmc_cfg->cs[6].config2);
-	writel(NET_GPMC_CONFIG3, &gpmc_cfg->cs[6].config3);
-	writel(NET_GPMC_CONFIG4, &gpmc_cfg->cs[6].config4);
-	writel(NET_GPMC_CONFIG5, &gpmc_cfg->cs[6].config5);
-	writel(NET_GPMC_CONFIG6, &gpmc_cfg->cs[6].config6);
-	writel(NET_GPMC_CONFIG7, &gpmc_cfg->cs[6].config7);
+	gpmc_dm9000_config();
 
 	/* Use OMAP DIE_ID as MAC address */
 	if (!eth_getenv_enetaddr("ethaddr", enetaddr)) {

@@ -139,6 +150,18 @@ int board_eth_init(bd_t *bis)
 }
 #endif
 
+#ifdef CONFIG_SPL_OS_BOOT
+/*
+ * Do board specific preperation before SPL
+ * Linux boot
+ */
+void spl_board_prepare_for_linux(void)
+{
+	gpmc_dm9000_config();
+}
+
+#endif
+
 /*
  * Routine: get_board_mem_timings
  * Description: If we use SPL then there is no x-loader nor config header

1.7.5.4
index 1ec651b..62200e5 100644
@@ -87,6 +87,8 @@ u32 omap_boot_mode(void);

+int spl_uboot_key(void);
+void spl_board_prepare_for_linux(void);

index b06aab6..05de3c1 100644
@@ -63,6 +63,24 @@ int board_init(void)
 ? ? ? ?return 0;
 ?}

 
+static u32 gpmc_net_config[GPMC_MAX_REG] = {
+ ? ? ? NET_GPMC_CONFIG1,
+ ? ? ? NET_GPMC_CONFIG2,
+ ? ? ? NET_GPMC_CONFIG3,
+ ? ? ? NET_GPMC_CONFIG4,
+ ? ? ? NET_GPMC_CONFIG5,
+ ? ? ? NET_GPMC_CONFIG6,
+ ? ? ? NET_GPMC_CONFIG7,
+};

	(http://article.gmane.org/gmane.comp.boot-loaders.u-boot/113500)
 arch/arm/include/asm/omap_common.h  |    2 ++
 board/timll/devkit8000/devkit8000.c |   19 +++++++++++++++++++
 2 files changed, 21 insertions(+), 0 deletions(-)
index 1ec651b..62200e5 100644
@@ -87,6 +87,8 @@ u32 omap_boot_mode(void);
 /* SPL common function s*/
 void spl_parse_image_header(const struct image_header *header);
 void omap_rev_string(char *omap_rev_string);
+int spl_uboot_key(void);
+void spl_board_prepare_for_linux(void);
 
 /* NAND SPL functions */
 void spl_nand_load_image(void);

index 10f189e..dded697 100644
@@ -73,6 +73,13 @@ int board_init(void)
 	return 0;
 }
 
+/* Configure GPMC registers for DM9000 */
+static void gpmc_dm9000_config(void)
+{
+	enable_gpmc_cs_config(gpmc_net_config, &gpmc_cfg->cs[6],
+		CONFIG_DM9000_BASE, GPMC_SIZE_16M);
+}
+
 /*
  * Routine: misc_init_r
  * Description: Configure board specific parts

@@ -144,6 +151,18 @@ int board_eth_init(bd_t *bis)
 }
 #endif
 
+#ifdef CONFIG_SPL_OS_BOOT
+/*
+ * Do board specific preperation before SPL
+ * Linux boot
+ */
+void spl_board_prepare_for_linux(void)
+{
+	gpmc_dm9000_config();
+}
+
+#endif
+
 /*
  * Routine: get_board_mem_timings
  * Description: If we use SPL then there is no x-loader nor config header

1.7.5.4
=====================================================================
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: +49-8142-66989-0 Fax: +49-8142-66989-80  Email: office at denx.de
=====================================================================
	Address where the kernel boot arguments are expected - this is
	normaly RAM-begin + 0x100
	(http://article.gmane.org/gmane.comp.boot-loaders.u-boot/113501)
 arch/arm/cpu/armv7/omap-common/spl.c      |   49 +++++++++++++++++++++++++-
 arch/arm/cpu/armv7/omap-common/spl_nand.c |   53 ++++++++++++++++------------
 arch/arm/include/asm/omap_common.h        |    1 +
 3 files changed, 78 insertions(+), 25 deletions(-)
index 9c35a09..955a83b 100644
@@ -35,6 +35,7 @@
 #include <i2c.h>
 #include <image.h>
 #include <malloc.h>
+#include <linux/compiler.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 

@@ -64,6 +65,25 @@ void board_init_f(ulong dummy)
 	relocate_code(CONFIG_SPL_STACK, &gdata, CONFIG_SPL_TEXT_BASE);
 }
 
+/*
+ * Default function to determine if u-boot or the OS should
+ * be started. This implementation always returns 1.
+ *
+ * Please implement your own board specific funcion to do this.
+ *
+ * RETURN
+ * 0 to not start u-boot
+ * positive if u-boot should start
+ */
+#ifdef CONFIG_SPL_OS_BOOT
+__weak int spl_start_uboot(void)
+{
+	printf("SPL: Please implement spl_start_uboot() for your board\n");
+	printf("SPL: Direct Linux boot not active!\n");
+	return 1;
+}
+#endif
+
 void spl_parse_image_header(const struct image_header *header)
 {
 	u32 header_size = sizeof(struct image_header);

@@ -91,7 +111,25 @@ void spl_parse_image_header(const struct image_header *header)
 	}
 }
 
-static void jump_to_image_no_args(void)
+/*
+ * This function jumps to an image with argument. Normally an FDT or ATAGS
+ * image.
+ * arg: Pointer to paramter image in RAM
+ */
+#ifdef CONFIG_SPL_OS_BOOT
+__noreturn void jump_to_image_linux(void *arg)
+{
+	debug("Entering kernel arg pointer: 0x%p\n", arg);
+	typedef void (*image_entry_arg_t)(int, int, void *)
+		__attribute__ ((noreturn));
+	image_entry_arg_t image_entry =
+		(image_entry_arg_t) spl_image.entry_point;
+	/* cleanup_before_linux(); */ /*write SPL function for that*/
+	image_entry(0, CONFIG_MACH_TYPE, arg);
+}
+#endif
+
+void jump_to_image_no_args(void)
 {
 	typedef void (*image_entry_noargs_t)(u32 *)__attribute__ ((noreturn));
 	image_entry_noargs_t image_entry =

@@ -105,8 +143,8 @@ static void jump_to_image_no_args(void)
 	u32 boot_params_ptr_addr = (u32)&boot_params_ptr;
 	image_entry((u32 *)boot_params_ptr_addr);
 }
-
 void jump_to_image_no_args(void) __attribute__ ((noreturn));
+
 void board_init_r(gd_t *id, ulong dummy)
 {
 	u32 boot_device;

@@ -146,6 +184,13 @@ void board_init_r(gd_t *id, ulong dummy)
 		debug("Jumping to U-Boot\n");
 		jump_to_image_no_args();
 		break;
+#ifdef CONFIG_SPL_OS_BOOT
+	case IH_OS_LINUX:
+		debug("Jumping to Linux\n");
+		spl_board_prepare_for_linux();
+		jump_to_image_linux((void *)CONFIG_SYS_SPL_ARGS_ADDR);
+		break;
+#endif
 	default:
 		puts("Unsupported OS image.. Jumping nevertheless..\n");
 		jump_to_image_no_args();

index 62200e5..8a7d1e5 100644
@@ -89,6 +89,7 @@ void spl_parse_image_header(const struct image_header *header);
 void omap_rev_string(char *omap_rev_string);
 int spl_uboot_key(void);
 void spl_board_prepare_for_linux(void);
+int spl_start_uboot(void);
 
 /* NAND SPL functions */
 void spl_nand_load_image(void);

1.7.5.4
 arch/arm/cpu/armv7/omap-common/spl.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
index 955a83b..1671a03 100644
@@ -101,7 +101,7 @@ void spl_parse_image_header(const struct image_header *header)
 		/* Signature not found - assume u-boot.bin */
 		printf("mkimage signature not found - ih_magic = %x\n",
 			header->ih_magic);
-		puts("Assuming u-boot.bin ..\n");
+		debug("Assuming u-boot.bin ..\n");
 		/* Let's assume U-Boot will not be more than 200 KB */
 		spl_image.size = 200 * 1024;
 		spl_image.entry_point = CONFIG_SYS_TEXT_BASE;

1.7.5.4
 board/timll/devkit8000/devkit8000.c |   18 ++++++++++++++++++
 include/configs/devkit8000.h        |    7 +++++--
 2 files changed, 23 insertions(+), 2 deletions(-)
index 05de3c1..6ca4fe2 100644
@@ -41,6 +41,7 @@
 #include <asm/arch/mem.h>
 #include <asm/mach-types.h>
 #include "devkit8000.h"
+#include <asm/gpio.h>
 #ifdef CONFIG_DRIVER_DM9000
 #include <net.h>
 #include <netdev.h>

@@ -160,6 +161,23 @@ void spl_board_prepare_for_linux(void)
 	gpmc_dm9000_config();
 }
 
+/*
+ * devkit8000 specific implementation of spl_start_uboot()
+ *
+ * RETURN
+ * 0 if the button is not pressed
+ * 1 if the button is pressed
+ */
+int spl_start_uboot(void)
+{
+	int val = 0;
+	if (!gpio_request(CONFIG_SPL_OS_BOOT_KEY, "U-Boot key")) {
+		gpio_direction_input(CONFIG_SPL_OS_BOOT_KEY);
+		val = gpio_get_value(CONFIG_SPL_OS_BOOT_KEY);
+		gpio_free(CONFIG_SPL_OS_BOOT_KEY);
+	}
+	return !val;
+}
 #endif
 
 /*

index e323877..eb7c376 100644
@@ -35,7 +35,7 @@
 #define CONFIG_OMAP		1	/* in a TI OMAP core */
 #define CONFIG_OMAP34XX		1	/* which is a 34XX */
 #define CONFIG_OMAP3_DEVKIT8000	1	/* working with DevKit8000 */
-
+#define CONFIG_MACH_TYPE	MACH_TYPE_DEVKIT8000
 /*
  * 1MB into the SDRAM to allow for SPL's bss at the beginning of SDRAM
  * 64 bytes before this address should be set aside for u-boot.img's

@@ -327,7 +327,7 @@
 #define CONFIG_SPL_MAX_SIZE		0xB400  /* 45 K */
 #define CONFIG_SPL_STACK		LOW_LEVEL_SRAM_STACK
 
-#define CONFIG_SPL_BSS_START_ADDR	0x80000000 /*CONFIG_SYS_SDRAM_BASE*/
+#define CONFIG_SPL_BSS_START_ADDR       0x80000500 /* leave space for bootargs*/
 #define CONFIG_SPL_BSS_MAX_SIZE		0x80000
 
 /* NAND boot config */

@@ -352,6 +352,9 @@
 #define CONFIG_SYS_SPL_MALLOC_SIZE	0x100000	/* 1 MB */
 
 /* SPL OS boot options */
+#define CONFIG_SPL_OS_BOOT
+#define CONFIG_SPL_OS_BOOT_KEY	26
+
 #define CONFIG_CMD_SPL
 #define CONFIG_CMD_SPL_WRITE_SIZE       0x400 /* 1024 byte */
 #define CONFIG_CMD_SPL_NAND_OFS (CONFIG_SYS_NAND_SPL_KERNEL_OFFS+\

1.7.5.4
 arch/arm/cpu/armv7/Makefile |    2 --
 arch/arm/cpu/armv7/cpu.c    |    2 ++
 arch/arm/lib/Makefile       |    5 +++--
 3 files changed, 5 insertions(+), 4 deletions(-)
index f97fa3d..6b2addc 100644
@@ -27,9 +27,7 @@ LIB	= $(obj)lib$(CPU).o
 
 START	:= start.o
 
-ifndef CONFIG_SPL_BUILD
 COBJS	+= cache_v7.o
-endif
 
 COBJS	+= cpu.o
 COBJS	+= syslib.o

index 662c496..c6fa8ef 100644
@@ -52,7 +52,9 @@ int cleanup_before_linux(void)
 	 *
 	 * we turn off caches etc ...
 	 */
+#ifndef CONFIG_SPL_BUILD
 	disable_interrupts();
+#endif
 
 	/*
 	 * Turn off I-cache and invalidate it

index 300c8fa..39a9550 100644
@@ -39,8 +39,6 @@ GLCOBJS	+= div0.o
 
 COBJS-y	+= board.o
 COBJS-y	+= bootm.o
-COBJS-y	+= cache.o
-COBJS-y	+= cache-cp15.o
 COBJS-$(CONFIG_SYS_L2_PL310) += cache-pl310.o
 COBJS-y	+= interrupts.o
 COBJS-y	+= reset.o

@@ -48,6 +46,9 @@ SOBJS-$(CONFIG_USE_ARCH_MEMSET) += memset.o
 SOBJS-$(CONFIG_USE_ARCH_MEMCPY) += memcpy.o
 endif
 
+COBJS-y	+= cache.o
+COBJS-y	+= cache-cp15.o
+
 SRCS	:= $(GLSOBJS:.o=.S) $(GLCOBJS:.o=.c) \
 	   $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c)
 OBJS	:= $(addprefix $(obj),$(SOBJS-y) $(COBJS-y))

1.7.5.4
  arch/arm/cpu/armv7/Makefile |    2 --
  arch/arm/cpu/armv7/cpu.c    |    2 ++
  arch/arm/lib/Makefile       |    5 +++--
  3 files changed, 5 insertions(+), 4 deletions(-)
index f97fa3d..6b2addc 100644
@@ -27,9 +27,7 @@ LIB	= $(obj)lib$(CPU).o
 
  START	:= start.o
 
-ifndef CONFIG_SPL_BUILD
  COBJS	+= cache_v7.o
-endif
 
  COBJS	+= cpu.o
  COBJS	+= syslib.o

index 662c496..c6fa8ef 100644
@@ -52,7 +52,9 @@ int cleanup_before_linux(void)
  	 *
  	 * we turn off caches etc ...
  	 */
+#ifndef CONFIG_SPL_BUILD
  	disable_interrupts();
+#endif
 
  	/*
  	 * Turn off I-cache and invalidate it

index 300c8fa..39a9550 100644
@@ -39,8 +39,6 @@ GLCOBJS	+= div0.o
 
  COBJS-y	+= board.o
  COBJS-y	+= bootm.o
-COBJS-y	+= cache.o
-COBJS-y	+= cache-cp15.o
  COBJS-$(CONFIG_SYS_L2_PL310) += cache-pl310.o
  COBJS-y	+= interrupts.o
  COBJS-y	+= reset.o

@@ -48,6 +46,9 @@ SOBJS-$(CONFIG_USE_ARCH_MEMSET) += memset.o
  SOBJS-$(CONFIG_USE_ARCH_MEMCPY) += memcpy.o
  endif
 
+COBJS-y	+= cache.o
+COBJS-y	+= cache-cp15.o
+
  SRCS	:= $(GLSOBJS:.o=.S) $(GLCOBJS:.o=.c) \
  	   $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c)
  OBJS	:= $(addprefix $(obj),$(SOBJS-y) $(COBJS-y))

=====================================================================
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: +49-8142-66989-0 Fax: +49-8142-66989-80  Email: office at denx.de
=====================================================================
=====================================================================
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: +49-8142-66989-0 Fax: +49-8142-66989-80  Email: office at denx.de
=====================================================================
 arch/arm/cpu/armv7/omap3/board.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
index 1f33c63..1f6a3e9 100644
@@ -92,7 +92,9 @@ u32 omap_boot_device(void)
 
 void spl_board_init(void)
 {
+#ifdef CONFIG_SPL_I2C_SUPPORT
 	i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
+#endif
 }
 #endif /* CONFIG_SPL_BUILD */
 

1.7.5.4
 arch/arm/cpu/armv7/omap-common/Makefile            |   10 ----------
 common/Makefile                                    |    4 ++++
 {arch/arm/cpu/armv7/omap-common => common}/spl.c   |    0
 .../arm/cpu/armv7/omap-common => common}/spl_mmc.c |    0
 .../cpu/armv7/omap-common => common}/spl_nand.c    |    0
 5 files changed, 4 insertions(+), 10 deletions(-)
 rename {arch/arm/cpu/armv7/omap-common => common}/spl.c (100%)
 rename {arch/arm/cpu/armv7/omap-common => common}/spl_mmc.c (100%)
 rename {arch/arm/cpu/armv7/omap-common => common}/spl_nand.c (100%)
index a684611..e65e992 100644
@@ -40,16 +40,6 @@ COBJS	+= emif-common.o
 SOBJS	+= lowlevel_init.o
 endif
 
-ifdef CONFIG_SPL_BUILD
-COBJS	+= spl.o
-ifdef CONFIG_SPL_NAND_SUPPORT
-COBJS	+= spl_nand.o
-endif
-ifdef CONFIG_SPL_MMC_SUPPORT
-COBJS	+= spl_mmc.o
-endif
-endif
-
 ifndef CONFIG_SPL_BUILD
 ifneq ($(CONFIG_OMAP44XX)$(CONFIG_OMAP54XX),)
 COBJS	+= mem-common.o

index 91f3f2e..41b67ca 100644
@@ -186,6 +186,10 @@ COBJS-$(CONFIG_MENU) += menu.o
 COBJS-$(CONFIG_MODEM_SUPPORT) += modem.o
 COBJS-$(CONFIG_UPDATE_TFTP) += update.o
 COBJS-$(CONFIG_USB_KEYBOARD) += usb_kbd.o
+else
+COBJS-y += spl.o
+COBJS-$(CONFIG_SPL_NAND_SUPPORT) += spl_nand.o
+COBJS-$(CONFIG_SPL_MMC_SUPPORT) += spl_mmc.o
 endif
 
 COBJS-y += console.o

similarity index 100%
rename from arch/arm/cpu/armv7/omap-common/spl.c
rename to common/spl.c

similarity index 100%
rename from arch/arm/cpu/armv7/omap-common/spl_mmc.c
rename to common/spl_mmc.c

similarity index 100%
rename from arch/arm/cpu/armv7/omap-common/spl_nand.c
rename to common/spl_nand.c

1.7.5.4
 arch/arm/cpu/armv7/omap-common/Makefile   |    2 +
 arch/arm/cpu/armv7/omap-common/spl_omap.c |   71 +++++++++++++++++++++++++++++
 arch/arm/cpu/armv7/omap3/board.c          |    4 ++
 arch/arm/include/asm/omap_common.h        |   34 --------------
 common/spl.c                              |    1 +
 common/spl_mmc.c                          |   21 ++-------
 common/spl_nand.c                         |   14 +-----
 include/spl.h                             |   68 +++++++++++++++++++++++++++
 8 files changed, 153 insertions(+), 62 deletions(-)
 create mode 100644 arch/arm/cpu/armv7/omap-common/spl_omap.c
 create mode 100644 include/spl.h
index e65e992..6fb544c 100644
@@ -44,6 +44,8 @@ ifndef CONFIG_SPL_BUILD
 ifneq ($(CONFIG_OMAP44XX)$(CONFIG_OMAP54XX),)
 COBJS	+= mem-common.o
 endif
+else
+COBJS	+= spl_omap.o
 endif
 
 SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)

index 1f6a3e9..11a6caa 100644
@@ -42,6 +42,10 @@
 #include <asm/omap_common.h>
 #include <i2c.h>
 
+#ifdef CONFIG_SPL_BUILD
+#include <spl.h>
+#endif
+
 /* Declarations */
 extern omap3_sysinfo sysinfo;
 static void omap3_setup_aux_cr(void);

index 8a7d1e5..e46e612 100644
@@ -64,43 +64,9 @@ void preloader_console_init(void);
 #define BOOT_DEVICE_XIPWAIT	7
 #endif
 
-/* Boot type */
-#define	MMCSD_MODE_UNDEFINED	0
-#define MMCSD_MODE_RAW		1
-#define MMCSD_MODE_FAT		2
-#define NAND_MODE_HW_ECC	3
-
-struct spl_image_info {
-	const char *name;
-	u8 os;
-	u32 load_addr;
-	u32 entry_point;
-	u32 size;
-};
-
-extern struct spl_image_info spl_image;
-
-extern u32* boot_params_ptr;
 u32 omap_boot_device(void);
 u32 omap_boot_mode(void);
 
-/* SPL common function s*/
-void spl_parse_image_header(const struct image_header *header);
-void omap_rev_string(char *omap_rev_string);
-int spl_uboot_key(void);
-void spl_board_prepare_for_linux(void);
-int spl_start_uboot(void);
-
-/* NAND SPL functions */
-void spl_nand_load_image(void);
-
-/* MMC SPL functions */
-void spl_mmc_load_image(void);
-
-#ifdef CONFIG_SPL_BOARD_INIT
-void spl_board_init(void);
-#endif
-
 /*
  * silicon revisions.
  * Moving this to common, so that most of code can be moved to common,

index 1671a03..5fdf3fb 100644
@@ -30,6 +30,7 @@
 #include <mmc.h>
 #include <fat.h>
 #include <version.h>
+#include <spl.h>
 #include <asm/omap_common.h>
 #include <asm/arch/mmc_host_def.h>
 #include <i2c.h>

index 6f5b43e..9c0086c 100644
@@ -29,25 +29,12 @@
 #include <mmc.h>
 #include <fat.h>
 #include <version.h>
-#include <asm/omap_common.h>
-#include <asm/arch/mmc_host_def.h>
+#include <spl.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
-#ifdef CONFIG_GENERIC_MMC
-int board_mmc_init(bd_t *bis)
-{
-	switch (omap_boot_device()) {
-	case BOOT_DEVICE_MMC1:
-		omap_mmc_init(0);
-		break;
-	case BOOT_DEVICE_MMC2:
-		omap_mmc_init(1);
-		break;
-	}
-	return 0;
-}
-#endif
+/* Define the sector size, this is usually 512 bytes */
+#define MMCSD_SECTOR_SIZE	512
 
 static void mmc_load_image_raw(struct mmc *mmc)
 {

@@ -135,7 +122,7 @@ void spl_mmc_load_image(void)
 		printf("spl: mmc init failed: err - %d\n", err);
 		hang();
 	}
-	boot_mode = omap_boot_mode();
+	boot_mode = spl_boot_mode();
 	if (boot_mode == MMCSD_MODE_RAW) {
 		debug("boot mode - RAW\n");
 		mmc_load_image_raw(mmc);

index 1295e88..1adaf03 100644
@@ -27,7 +27,7 @@
 #include <asm/io.h>
 #include <nand.h>
 #include <version.h>
-#include <asm/omap_common.h>
+#include <spl.h>
 
 void spl_nand_load_image(void)
 {

@@ -35,16 +35,8 @@ void spl_nand_load_image(void)
 	int *src __attribute__((unused));
 	int *dst __attribute__((unused));
 
-	switch (omap_boot_mode()) {
-	case NAND_MODE_HW_ECC:
-		debug("spl: nand - using hw ecc\n");
-		gpmc_init();
-		nand_init();
-		break;
-	default:
-		puts("spl: ERROR: This bootmode is not implemented - hanging");
-		hang();
-	}
+	/* Call the architecture NAND init function */
+	spl_arch_nand_init();
 
 	/*use CONFIG_SYS_TEXT_BASE as temporary storage area */
 	header = (struct image_header *)(CONFIG_SYS_TEXT_BASE);

1.7.5.4
---
 common/spl.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
index 5fdf3fb..cf5395e 100644
@@ -125,7 +125,7 @@ __noreturn void jump_to_image_linux(void *arg)
 		__attribute__ ((noreturn));
 	image_entry_arg_t image_entry =
 		(image_entry_arg_t) spl_image.entry_point;
-	/* cleanup_before_linux(); */ /*write SPL function for that*/
+	cleanup_before_linux();
 	image_entry(0, CONFIG_MACH_TYPE, arg);
 }
 #endif

1.7.5.4
---
 arch/arm/cpu/armv7/omap-common/hwinit-common.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
index f65705d..4040d02 100644
@@ -32,6 +32,7 @@
 #include <asm/sizes.h>
 #include <asm/emif.h>
 #include <asm/omap_common.h>
+#include <spl.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 

1.7.5.4
 board/technexion/twister/twister.c |   23 +++++++++++++++++++++++
 include/configs/twister.h          |   12 ++++++++++++
 2 files changed, 35 insertions(+), 0 deletions(-)
index 950e76c..fc88301 100644
@@ -114,3 +114,26 @@ int board_mmc_init(bd_t *bis)
 	return omap_mmc_init(0);
 }
 #endif
+
+#ifdef CONFIG_SPL_OS_BOOT
+/*
+ * Do board specific preperation before SPL
+ * Linux boot
+ */
+void spl_board_prepare_for_linux(void)
+{
+	/* init cs for extern lan */
+	enable_gpmc_cs_config(gpmc_smc911, &gpmc_cfg->cs[5],
+		CONFIG_SMC911X_BASE, GPMC_SIZE_16M);
+}
+int spl_start_uboot(void)
+{
+	int val = 0;
+	if (!gpio_request(CONFIG_SPL_OS_BOOT_KEY, "U-Boot key")) {
+		gpio_direction_input(CONFIG_SPL_OS_BOOT_KEY);
+		val = gpio_get_value(CONFIG_SPL_OS_BOOT_KEY);
+		gpio_free(CONFIG_SPL_OS_BOOT_KEY);
+	}
+	return !val;
+}
+#endif

index 64a886d..a852481 100644
@@ -51,4 +51,16 @@
 #define	CONFIG_EXTRA_ENV_SETTINGS	CONFIG_TAM3517_SETTINGS \
 	"bootcmd=run nandboot\0"
 
+/* SPL OS boot options */
+#define CONFIG_CMD_SPL
+#define CONFIG_CMD_SPL_WRITE_SIZE	0x400 /* 1024 byte */
+#define CONFIG_SYS_NAND_SPL_KERNEL_OFFS	0x00200000
+#define CONFIG_CMD_SPL_NAND_OFS	(CONFIG_SYS_NAND_SPL_KERNEL_OFFS+\
+						0x600000)
+#define CONFIG_SPL_OS_BOOT
+#define CONFIG_SPL_OS_BOOT_KEY	55
+
+#define CONFIG_SYS_SPL_ARGS_ADDR	(PHYS_SDRAM_1 + 0x100)
+#define CONFIG_SPL_BOARD_INIT
+
 #endif /* __CONFIG_H */

1.7.5.4
 include/spl.h |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
index 6ea3823..d060826 100644
@@ -47,7 +47,7 @@ extern u32 *boot_params_ptr;
 
 /* SPL common function s*/
 void spl_parse_image_header(const struct image_header *header);
-void omap_rev_string(char *omap_rev_string);
+void omap_rev_string(void);
 int spl_uboot_key(void);
 void spl_board_prepare_for_linux(void);
 int spl_start_uboot(void);

1.7.5.4
---
 common/Makefile         |    1 +
 common/cmd_spl.c        |  229 +++++++++++++++++++++++++++++++++++++++++++++++
 doc/README.commands.spl |   31 +++++++
 include/cmd_spl.h       |   30 ++++++
 include/image.h         |    2 +
 5 files changed, 293 insertions(+), 0 deletions(-)
 create mode 100644 common/cmd_spl.c
 create mode 100644 doc/README.commands.spl
 create mode 100644 include/cmd_spl.h
index 2d9ae8c..910c056 100644
@@ -162,6 +162,7 @@ COBJS-$(CONFIG_USB_STORAGE) += usb_storage.o
 endif
 COBJS-$(CONFIG_CMD_XIMG) += cmd_ximg.o
 COBJS-$(CONFIG_YAFFS2) += cmd_yaffs2.o
+COBJS-$(CONFIG_CMD_SPL) += cmd_spl.o
 
 # others
 ifdef CONFIG_DDR_SPD

new file mode 100644
index 0000000..818dd53
@@ -0,0 +1,31 @@
+The spl command is used to export a boot parameter image to RAM. Later
+it may implement more functions connected to the SPL.
+
+SUBCOMMAND EXPORT
+To execute the command everything has to be in place as if bootm should be
+used. (kernel image, initrd-image, fdt-image etc.)
+
+export has to subcommands:
+	atags: exports the ATAGS
+	fdt: exports the FDT
+
+Call is:
+spl export <ftd|atags> [kernel_addr] [initrd_addr] [fdt_addr if fdt]
+
+
+TYPICAL CALL
+
+on OMAP3:
+nandecc hw
+nand read 0x82000000 0x280000 0x400000 	/* Read kernel image from NAND*/
+spl export atags 			/* export ATAGS */
+nand erase 0x680000 0x20000		/* erase - one page */
+nand write 0x80000100 0x680000 0x20000	/* write the image - one page */
+
+call with FDT:
+nandecc hw
+nand read 0x82000000 0x280000 0x400000 	/* Read kernel image from NAND*/
+tftpboot 0x80000100 devkit8000.dtb /* Read fdt */
+spl export fdt 0x82000000 - 0x80000100	/* export FDT */
+nand erase 0x680000 0x20000		/* erase - one page */
+nand write <adress shown by spl export> 0x680000 0x20000

new file mode 100644
index 0000000..2845367
@@ -0,0 +1,30 @@
+/* Copyright (C) 2011
+ * Corscience GmbH & Co. KG - Simon Schwarz <[email protected]>
+ *
+ * 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
+ */
+#ifndef _NAND_SPL_H_
+#define	_NAND_SPL_H_
+
+#define SPL_EXPORT	(0x00000001)
+
+#define SPL_EXPORT_FDT		(0x00000001)
+#define SPL_EXPORT_ATAGS	(0x00000002)
+
+#endif /* _NAND_SPL_H_ */

index bbf80f0..a1c6e4e 100644
@@ -268,6 +268,8 @@ typedef struct bootm_headers {
 #endif
 } bootm_headers_t;
 
+extern bootm_headers_t images;
+
 /*
  * Some systems (for example LWMON) have very short watchdog periods;
  * we must make sure to split long operations like memmove() or

1.7.5.4
?common/Makefile ? ? ? ? | ? ?1 +
?common/cmd_spl.c ? ? ? ?| ?229 +++++++++++++++++++++++++++++++++++++++++++++++
?doc/README.commands.spl | ? 31 +++++++
?include/cmd_spl.h ? ? ? | ? 30 ++++++
?include/image.h ? ? ? ? | ? ?2 +
Tom
?common/Makefile ? ? ? ? | ? ?1 +
?common/cmd_spl.c ? ? ? ?| ?229 +++++++++++++++++++++++++++++++++++++++++++++++
?doc/README.commands.spl | ? 31 +++++++
?include/cmd_spl.h ? ? ? | ? 30 ++++++
?include/image.h ? ? ? ? | ? ?2 +
Tom
?common/Makefile ? ? ? ? | ? ?1 +
?common/cmd_spl.c ? ? ? ?| ?229 +++++++++++++++++++++++++++++++++++++++++++++++
?doc/README.commands.spl | ? 31 +++++++
?include/cmd_spl.h ? ? ? | ? 30 ++++++
?include/image.h ? ? ? ? | ? ?2 +
Tom
---
 common/Makefile         |    1 +
 common/cmd_spl.c        |  229 +++++++++++++++++++++++++++++++++++++++++++++++
 doc/README.commands.spl |   31 +++++++
 include/cmd_spl.h       |   30 ++++++
 include/image.h         |    2 +
 5 files changed, 293 insertions(+), 0 deletions(-)
 create mode 100644 common/cmd_spl.c
 create mode 100644 doc/README.commands.spl
 create mode 100644 include/cmd_spl.h
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
+/* Calls bootm with the parameters given */
+static int call_bootm(int argc, char * const argv[], char *subcommand[])
+{
+	char *bootm_argv[5];
+	char command[] = "do_bootm";

+static int spl_export_fdt(int argc, char * const argv[])
+{

+	/* inspect paramters and execute bootm */
+	argc--;
+	argv++;
+	if (call_bootm(argc, argv, subcommand))
+		return -1;
+
+	printf("Argument image is now in RAM: 0x%p\n",
+		(void *)images.ft_addr);
+	return 0;
+#else
+	printf("Das U-Boot was build without fdt support - aborting\n");
+	return -1;
+#endif
+}
+
+/* assemble the bootm patameters for atags creation */
+static int spl_export_atags(int argc, char * const argv[])
+{

+	/* inspect parameters and execute bootm */
+	argc--;
+	argv++;
+	if (call_bootm(argc, argv, subcommand))
+		return -1;
+
+	printf("Argument image is now in RAM at: 0x%p\n",
+		(void *)gd->bd->bi_boot_params);
+	return 0;
+#endif
+	printf("Das U-Boot was build without ATAGS support - aborting\n");
+	return -1;
+}

+	if (c) {
+		cmd = (int)c->cmd;
+		switch (cmd) {
+		case SPL_EXPORT_FDT:

+			argc--;
+			argv++;
+			return spl_export_fdt(argc, argv);
+			break;
+		case SPL_EXPORT_ATAGS:
+			argc--;
+			argv++;
+			return spl_export_atags(argc, argv);
+			break;
+		default:

DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
That said, there may be good reasons for what you did beyond obsequi-
ous sycophantic parody. Perhaps you might be so kind as to elucidate.
         -- Tom Christiansen in <[email protected]>
+/* Calls bootm with the parameters given */
+static int call_bootm(int argc, char * const argv[], char *subcommand[])
+{
+	char *bootm_argv[5];
+	char command[] = "do_bootm";

+static int spl_export_fdt(int argc, char * const argv[])
+{

+	/* inspect paramters and execute bootm */
+	argc--;
+	argv++;
+	if (call_bootm(argc, argv, subcommand))
+		return -1;
+
+	printf("Argument image is now in RAM: 0x%p\n",
+		(void *)images.ft_addr);
+	return 0;
+#else
+	printf("Das U-Boot was build without fdt support - aborting\n");
+	return -1;
+#endif
+}
+
+/* assemble the bootm patameters for atags creation */
+static int spl_export_atags(int argc, char * const argv[])
+{

+	/* inspect parameters and execute bootm */
+	argc--;
+	argv++;
+	if (call_bootm(argc, argv, subcommand))
+		return -1;
+
+	printf("Argument image is now in RAM at: 0x%p\n",
+		(void *)gd->bd->bi_boot_params);
+	return 0;
+#endif
+	printf("Das U-Boot was build without ATAGS support - aborting\n");
+	return -1;
+}

+	if (c) {
+		cmd = (int)c->cmd;
+		switch (cmd) {
+		case SPL_EXPORT_FDT:
+			argc--;
+			argv++;
+			return spl_export_fdt(argc, argv);
+			break;
+		case SPL_EXPORT_ATAGS:

+			argc--;
+			argv++;
+			return spl_export_atags(argc, argv);
+			break;
+		default:

	device_media->load_image(addr, size);
=====================================================================
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: +49-8142-66989-0 Fax: +49-8142-66989-80  Email: office at denx.de
=====================================================================
---
  common/Makefile         |    1 +
  common/cmd_spl.c        |  229 +++++++++++++++++++++++++++++++++++++++++++++++
  doc/README.commands.spl |   31 +++++++
  include/cmd_spl.h       |   30 ++++++
  include/image.h         |    2 +
  5 files changed, 293 insertions(+), 0 deletions(-)
index 2d9ae8c..910c056 100644
@@ -162,6 +162,7 @@ COBJS-$(CONFIG_USB_STORAGE) += usb_storage.o
  endif
  COBJS-$(CONFIG_CMD_XIMG) += cmd_ximg.o
  COBJS-$(CONFIG_YAFFS2) += cmd_yaffs2.o
+COBJS-$(CONFIG_CMD_SPL) += cmd_spl.o
 
  # others
  ifdef CONFIG_DDR_SPD

new file mode 100644
index 0000000..deab8e9
@@ -0,0 +1,229 @@
+/*
+ * Copyright (C) 2011
+ * Corscience GmbH&  Co. KG - Simon Schwarz<[email protected]>
+ *
+ * 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
+ */
+
+#include<common.h>
+#include<command.h>
+#include<cmd_spl.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/* Calls bootm with the parameters given */
+static int call_bootm(int argc, char * const argv[], char *subcommand[])
+{
+	char *bootm_argv[5];
+	char command[] = "do_bootm";
+
+	int i = 0;
+	int ret = 0;
+
+	/* create paramter array */
+	bootm_argv[0] = command;
+	switch (argc) {
+	case 3:
+		bootm_argv[4] = argv[2]; /* fdt addr */
+	case 2:
+		bootm_argv[3] = argv[1]; /* initrd addr */
+	case 1:
+		bootm_argv[2] = argv[0]; /* kernel addr */
+	}
+
+
+	/*
+	 * - do the work -
+	 * exec subcommands of do_bootm to init the images
+	 * data structure
+	 */
+	while (subcommand[i] != NULL) {
+		bootm_argv[1] = subcommand[i];
+		debug("args: %s, %s, %s, %s, %s, %d\n", bootm_argv[0],
+			bootm_argv[1], bootm_argv[2], bootm_argv[3],
+			bootm_argv[4], argc);
+		ret = do_bootm(find_cmd("do_bootm"), 0, argc+2,
+			bootm_argv);
+		debug("Subcommand retcode: %d\n", ret);
+		i++;
+	}
+
+	if (ret) {
+		printf("ERROR prep subcommand failed!\n");
+		return -1;
+	}
+
+	return 0;
+}
+
+/* assemble the bootm paramteres for fdt creation */
+static int spl_export_fdt(int argc, char * const argv[])
+{
+#ifdef CONFIG_OF_LIBFDT
+	/* Create subcommand string */
+	char *subcommand[] = {
+	"start",
+	"loados",
+#ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
+	"ramdisk",
+#endif
+	"fdt",
+	"cmdline",
+	"bdt",
+	"prep",
+	NULL};
+
+	/* inspect paramters and execute bootm */
+	argc--;
+	argv++;
+	if (call_bootm(argc, argv, subcommand))
+		return -1;
+
+	printf("Argument image is now in RAM: 0x%p\n",
+		(void *)images.ft_addr);
+	return 0;
+#else
+	printf("Das U-Boot was build without fdt support - aborting\n");
+	return -1;
+#endif
+}
+
+/* assemble the bootm patameters for atags creation */
+static int spl_export_atags(int argc, char * const argv[])
+{
+#if defined(CONFIG_SETUP_MEMORY_TAGS) || \
+	defined(CONFIG_CMDLINE_TAG) || \
+	defined(CONFIG_INITRD_TAG) || \
+	defined(CONFIG_SERIAL_TAG) || \
+	defined(CONFIG_REVISION_TAG)
+	/* Create subcommand string */
+	char *subcommand[] = {
+		"start",
+		"loados",
+#ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
+		"ramdisk",
+#endif
+		"cmdline",
+		"bdt",
+		"prep",
+		NULL};
+
+	/* inspect parameters and execute bootm */
+	argc--;
+	argv++;
+	if (call_bootm(argc, argv, subcommand))
+		return -1;
+
+	printf("Argument image is now in RAM at: 0x%p\n",
+		(void *)gd->bd->bi_boot_params);
+	return 0;
+#endif
+	printf("Das U-Boot was build without ATAGS support - aborting\n");
+	return -1;
+}
+
+static cmd_tbl_t cmd_spl_export_sub[] = {
+	U_BOOT_CMD_MKENT(fdt, 0, 1, (void *)SPL_EXPORT_FDT, "", ""),
+	U_BOOT_CMD_MKENT(atags, 0, 1, (void *)SPL_EXPORT_ATAGS, "", ""),
+};
+
+static int spl_export(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	const cmd_tbl_t *c;
+	int cmd;
+
+	if (argc<  2) /* no subcommand */
+		return cmd_usage(cmdtp);
+
+	c = find_cmd_tbl(argv[1],&cmd_spl_export_sub[0],
+		ARRAY_SIZE(cmd_spl_export_sub));
+	if (c) {
+		cmd = (int)c->cmd;
+		switch (cmd) {
+		case SPL_EXPORT_FDT:
+			argc--;
+			argv++;
+			return spl_export_fdt(argc, argv);
+			break;
+		case SPL_EXPORT_ATAGS:
+			argc--;
+			argv++;
+			return spl_export_atags(argc, argv);
+			break;
+		default:
+			/* unrecognized command */
+			return cmd_usage(cmdtp);
+		}
+	} else {
+		/* Unrecognized command */
+		return cmd_usage(cmdtp);
+	}
+
+	return 0;
+}
+
+static cmd_tbl_t cmd_spl_sub[] = {
+	U_BOOT_CMD_MKENT(export, 0, 1, (void *)SPL_EXPORT, "", ""),
+};
+
+static int do_spl(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	const cmd_tbl_t *c;
+	int cmd;
+
+	if (argc<  2) /* no subcommand */
+		return cmd_usage(cmdtp);
+
+	c = find_cmd_tbl(argv[1],&cmd_spl_sub[0], ARRAY_SIZE(cmd_spl_sub));
+	if (c) {
+		cmd = (int)c->cmd;
+		switch (cmd) {
+		case SPL_EXPORT:
+			argc--;
+			argv++;
+			if (spl_export(cmdtp, flag, argc, argv))
+				printf("Subcommand failed\n");
+			break;
+		default:
+			/* unrecognized command */
+			return cmd_usage(cmdtp);
+		}
+	} else {
+		/* Unrecognized command */
+		return cmd_usage(cmdtp);
+	}
+	return 0;
+}
+
+/*
+ * Arguments:
+ * 1: subcommand
+ * 2: image_type
+ * 3: nand_offset
+ * 4: kernel_addr
+ * 5: initrd_addr
+ * 6: fdt_adr
+ */
+
+U_BOOT_CMD(
+	spl, 6 , 1, do_spl, "SPL configuration",
+	"export<img=atags|fdt>  [kernel_addr] [initrd_addr] "
+	"[fdt_addr if<img>  = fdt] - export a kernel parameter image\n"
+	"\t initrd_img can be set to \"-\" if fdt_addr without initrd img is"
+	"used");

new file mode 100644
index 0000000..818dd53

@@ -0,0 +1,31 @@
+The spl command is used to export a boot parameter image to RAM. Later
+it may implement more functions connected to the SPL.
+
+SUBCOMMAND EXPORT
+To execute the command everything has to be in place as if bootm should be
+used. (kernel image, initrd-image, fdt-image etc.)
+
+export has to subcommands:

+	atags: exports the ATAGS
+	fdt: exports the FDT
+
+Call is:
+spl export<ftd|atags>  [kernel_addr] [initrd_addr] [fdt_addr if fdt]
+
+
+TYPICAL CALL
+
+on OMAP3:
+nandecc hw
+nand read 0x82000000 0x280000 0x400000 	/* Read kernel image from NAND*/
+spl export atags 			/* export ATAGS */
+nand erase 0x680000 0x20000		/* erase - one page */
+nand write 0x80000100 0x680000 0x20000	/* write the image - one page */
+
+call with FDT:
+nandecc hw
+nand read 0x82000000 0x280000 0x400000 	/* Read kernel image from NAND*/
+tftpboot 0x80000100 devkit8000.dtb /* Read fdt */
+spl export fdt 0x82000000 - 0x80000100	/* export FDT */
+nand erase 0x680000 0x20000		/* erase - one page */
+nand write<adress shown by spl export>  0x680000 0x20000

new file mode 100644
index 0000000..2845367
@@ -0,0 +1,30 @@
+/* Copyright (C) 2011
+ * Corscience GmbH&  Co. KG - Simon Schwarz<[email protected]>
+ *
+ * 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
+ */
+#ifndef _NAND_SPL_H_
+#define	_NAND_SPL_H_
+
+#define SPL_EXPORT	(0x00000001)
+
+#define SPL_EXPORT_FDT		(0x00000001)
+#define SPL_EXPORT_ATAGS	(0x00000002)
+
+#endif /* _NAND_SPL_H_ */

index bbf80f0..a1c6e4e 100644
@@ -268,6 +268,8 @@ typedef struct bootm_headers {
  #endif
  } bootm_headers_t;
 
+extern bootm_headers_t images;
+
  /*
   * Some systems (for example LWMON) have very short watchdog periods;
   * we must make sure to split long operations like memmove() or

---
 include/configs/devkit8000.h |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)
index 758326b..d3ca0dd 100644
@@ -356,4 +356,12 @@
 #define CONFIG_SYS_SPL_MALLOC_START	0x80208000
 #define CONFIG_SYS_SPL_MALLOC_SIZE	0x100000	/* 1 MB */
 
+/* SPL OS boot options */
+#define CONFIG_CMD_SPL
+#define CONFIG_CMD_SPL_WRITE_SIZE       0x400 /* 1024 byte */
+#define CONFIG_CMD_SPL_NAND_OFS (CONFIG_SYS_NAND_SPL_KERNEL_OFFS+\
+					0x400000)
+#define CONFIG_SYS_NAND_SPL_KERNEL_OFFS 0x280000
+#define CONFIG_SYS_SPL_ARGS_ADDR        (PHYS_SDRAM_1 + 0x100)
+
 #endif /* __CONFIG_H */

1.7.5.4
	Address where the kernel boot arguments are expected - this is
	normally RAM-start + 0x100 (on ARM)
---
 arch/arm/cpu/armv7/omap-common/spl_nand.c |   66 ++++++++++++++++++++++-------
 1 files changed, 50 insertions(+), 16 deletions(-)
index 38d06b1..2a66214 100644
@@ -24,6 +24,7 @@
 #include <asm/u-boot.h>
 #include <asm/utils.h>
 #include <asm/arch/sys_proto.h>
+#include <asm/io.h>
 #include <nand.h>
 #include <version.h>
 #include <asm/omap_common.h>

@@ -32,6 +33,9 @@
 void spl_nand_load_image(void)
 {
 	struct image_header *header;
+	int *src __attribute__((unused));
+	int *dst __attribute__((unused));
+
 	switch (omap_boot_mode()) {
 	case NAND_MODE_HW_ECC:
 		debug("spl: nand - using hw ecc\n");

@@ -45,26 +49,56 @@ void spl_nand_load_image(void)
 
 	/*use CONFIG_SYS_TEXT_BASE as temporary storage area */
 	header = (struct image_header *)(CONFIG_SYS_TEXT_BASE);
+#ifdef CONFIG_SPL_OS_BOOT
+	if (!spl_uboot_key()) {
+		/*
+		 * load parameter image
+		 * load to temp position since nand_spl_load_image reads
+		 * a whole block which is typically larger than
+		 * CONFIG_CMD_SAVEBP_WRITE_SIZE therefore may overwrite
+		 * following sections like BSS
+		 */
+		nand_spl_load_image(CONFIG_CMD_SPL_NAND_OFS,
+			CONFIG_CMD_SPL_WRITE_SIZE,
+			(void *)CONFIG_SYS_TEXT_BASE);
+		/* copy to destintion */
+		for (dst = (int *)CONFIG_SYS_SPL_ARGS_ADDR,
+				src = (int *)CONFIG_SYS_TEXT_BASE;
+				src < (int *)(CONFIG_SYS_TEXT_BASE +
+				CONFIG_CMD_SPL_WRITE_SIZE);
+				src++, dst++) {
+			writel(readl(src), dst);
+		}
 
+		/* load linux */
+		nand_spl_load_image(CONFIG_SYS_NAND_SPL_KERNEL_OFFS,
+			CONFIG_SYS_NAND_PAGE_SIZE, (void *)header);
+		spl_parse_image_header(header);
+		nand_spl_load_image(CONFIG_SYS_NAND_SPL_KERNEL_OFFS,
+			spl_image.size, (void *)spl_image.load_addr);
+	} else
+#endif
+	{
 #ifdef CONFIG_NAND_ENV_DST
-	nand_spl_load_image(CONFIG_ENV_OFFSET,
-		CONFIG_SYS_NAND_PAGE_SIZE, (void *)header);
-	spl_parse_image_header(header);
-	nand_spl_load_image(CONFIG_ENV_OFFSET, spl_image.size,
-		(void *)image_load_addr);
+		nand_spl_load_image(CONFIG_ENV_OFFSET,
+			CONFIG_SYS_NAND_PAGE_SIZE, (void *)header);
+		spl_parse_image_header(header);
+		nand_spl_load_image(CONFIG_ENV_OFFSET, spl_image.size,
+			(void *)spl_image.load_addr);
 #ifdef CONFIG_ENV_OFFSET_REDUND
-	nand_spl_load_image(CONFIG_ENV_OFFSET_REDUND,
-		CONFIG_SYS_NAND_PAGE_SIZE, (void *)header);
-	spl_parse_image_header(header);
-	nand_spl_load_image(CONFIG_ENV_OFFSET_REDUND, spl_image.size,
-		(void *)image_load_addr);
+		nand_spl_load_image(CONFIG_ENV_OFFSET_REDUND,
+			CONFIG_SYS_NAND_PAGE_SIZE, (void *)header);
+		spl_parse_image_header(header);
+		nand_spl_load_image(CONFIG_ENV_OFFSET_REDUND, spl_image.size,
+			(void *)spl_image.load_addr);
 #endif
 #endif
-	/* Load u-boot */
-	nand_spl_load_image(CONFIG_SYS_NAND_U_BOOT_OFFS,
-		CONFIG_SYS_NAND_PAGE_SIZE, (void *)header);
-	spl_parse_image_header(header);
-	nand_spl_load_image(CONFIG_SYS_NAND_U_BOOT_OFFS,
-		spl_image.size, (void *)spl_image.load_addr);
+		/* Load u-boot */
+		nand_spl_load_image(CONFIG_SYS_NAND_U_BOOT_OFFS,
+			CONFIG_SYS_NAND_PAGE_SIZE, (void *)header);
+		spl_parse_image_header(header);
+		nand_spl_load_image(CONFIG_SYS_NAND_U_BOOT_OFFS,
+			spl_image.size, (void *)spl_image.load_addr);
+	}
 	nand_deselect();
 }

1.7.5.4
---
 arch/arm/include/asm/omap_common.h  |    2 ++
 board/timll/devkit8000/devkit8000.c |   19 +++++++++++++++++++
 2 files changed, 21 insertions(+), 0 deletions(-)
index 34bec45..92aa4f9 100644
@@ -92,6 +92,8 @@ u32 omap_boot_mode(void);
 /* SPL common function s*/
 void spl_parse_image_header(const struct image_header *header);
 void omap_rev_string(void);
+int spl_uboot_key(void);
+void spl_board_prepare_for_linux(void);
 
 /* NAND SPL functions */
 void spl_nand_load_image(void);

index 10f189e..dded697 100644
@@ -73,6 +73,13 @@ int board_init(void)
 	return 0;
 }
 
+/* Configure GPMC registers for DM9000 */
+static void gpmc_dm9000_config(void)
+{
+	enable_gpmc_cs_config(gpmc_net_config, &gpmc_cfg->cs[6],
+		CONFIG_DM9000_BASE, GPMC_SIZE_16M);
+}
+
 /*
  * Routine: misc_init_r
  * Description: Configure board specific parts

@@ -144,6 +151,18 @@ int board_eth_init(bd_t *bis)
 }
 #endif
 
+#ifdef CONFIG_SPL_OS_BOOT
+/*
+ * Do board specific preperation before SPL
+ * Linux boot
+ */
+void spl_board_prepare_for_linux(void)
+{
+	gpmc_dm9000_config();
+}
+
+#endif
+
 /*
  * Routine: get_board_mem_timings
  * Description: If we use SPL then there is no x-loader nor config header

1.7.5.4
---
  arch/arm/include/asm/omap_common.h  |    2 ++
  board/timll/devkit8000/devkit8000.c |   19 +++++++++++++++++++
  2 files changed, 21 insertions(+), 0 deletions(-)
index 34bec45..92aa4f9 100644

@@ -92,6 +92,8 @@ u32 omap_boot_mode(void);
  /* SPL common function s*/
  void spl_parse_image_header(const struct image_header *header);
  void omap_rev_string(void);
+int spl_uboot_key(void);

+void spl_board_prepare_for_linux(void);
 
  /* NAND SPL functions */
  void spl_nand_load_image(void);

index 10f189e..dded697 100644
@@ -73,6 +73,13 @@ int board_init(void)
  	return 0;
  }
 
+/* Configure GPMC registers for DM9000 */
+static void gpmc_dm9000_config(void)
+{
+	enable_gpmc_cs_config(gpmc_net_config,&gpmc_cfg->cs[6],
+		CONFIG_DM9000_BASE, GPMC_SIZE_16M);
+}
+
  /*
   * Routine: misc_init_r
   * Description: Configure board specific parts

@@ -144,6 +151,18 @@ int board_eth_init(bd_t *bis)
  }
  #endif
 
+#ifdef CONFIG_SPL_OS_BOOT
+/*
+ * Do board specific preperation before SPL
+ * Linux boot
+ */
+void spl_board_prepare_for_linux(void)
+{
+	gpmc_dm9000_config();
+}
+
+#endif
+
  /*
   * Routine: get_board_mem_timings
   * Description: If we use SPL then there is no x-loader nor config header

=====================================================================
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: +49-8142-66989-0 Fax: +49-8142-66989-80  Email: office at denx.de
=====================================================================
	Address where the kernel boot arguments are expected - this is
	normaly RAM-begin + 0x100
---
 arch/arm/cpu/armv7/omap-common/spl.c      |   48 +++++++++++++++++++++++++-
 arch/arm/cpu/armv7/omap-common/spl_nand.c |   53 ++++++++++++++++------------
 arch/arm/include/asm/omap_common.h        |    1 +
 3 files changed, 77 insertions(+), 25 deletions(-)
index 9c1f7e3..f99c0e5 100644
@@ -65,6 +65,25 @@ void board_init_f(ulong dummy)
 	relocate_code(CONFIG_SPL_STACK, &gdata, CONFIG_SPL_TEXT_BASE);
 }
 
+/*
+ * Default function to determine if u-boot or the OS should
+ * be started. This implementation always returns 1.
+ *
+ * Please implement your own board specific funcion to do this.
+ *
+ * RETURN
+ * 0 to not start u-boot
+ * positive if u-boot should start
+ */
+#ifdef CONFIG_SPL_OS_BOOT
+__weak int spl_start_uboot(void)
+{
+	printf("SPL: Please implement spl_start_uboot() for your board\n");
+	printf("SPL: Direct Linux boot not active!\n");
+	return 1;
+}
+#endif
+
 void spl_parse_image_header(const struct image_header *header)
 {
 	u32 header_size = sizeof(struct image_header);

@@ -92,7 +111,25 @@ void spl_parse_image_header(const struct image_header *header)
 	}
 }
 
-static void jump_to_image_no_args(void)
+/*
+ * This function jumps to an image with argument. Normally an FDT or ATAGS
+ * image.
+ * arg: Pointer to paramter image in RAM
+ */
+#ifdef CONFIG_SPL_OS_BOOT
+__noreturn void jump_to_image_linux(void *arg)
+{
+	debug("Entering kernel arg pointer: 0x%p\n", arg);
+	typedef void (*image_entry_arg_t)(int, int, void *)
+		__attribute__ ((noreturn));
+	image_entry_arg_t image_entry =
+		(image_entry_arg_t) spl_image.entry_point;
+	/* cleanup_before_linux(); */ /*write SPL function for that*/
+	image_entry(0, CONFIG_MACH_TYPE, arg);
+}
+#endif
+
+void jump_to_image_no_args(void)
 {
 	typedef void (*image_entry_noargs_t)(u32 *)__attribute__ ((noreturn));
 	image_entry_noargs_t image_entry =

@@ -106,8 +143,8 @@ static void jump_to_image_no_args(void)
 	u32 boot_params_ptr_addr = (u32)&boot_params_ptr;
 	image_entry((u32 *)boot_params_ptr_addr);
 }
-
 void jump_to_image_no_args(void) __attribute__ ((noreturn));
+
 void board_init_r(gd_t *id, ulong dummy)
 {
 	u32 boot_device;

@@ -145,6 +182,13 @@ void board_init_r(gd_t *id, ulong dummy)
 		debug("Jumping to U-Boot\n");
 		jump_to_image_no_args();
 		break;
+#ifdef CONFIG_SPL_OS_BOOT
+	case IH_OS_LINUX:
+		debug("Jumping to Linux\n");
+		spl_board_prepare_for_linux();
+		jump_to_image_linux((void *)CONFIG_SYS_SPL_ARGS_ADDR);
+		break;
+#endif
 	default:
 		puts("Unsupported OS image.. Jumping nevertheless..\n");
 		jump_to_image_no_args();

index 92aa4f9..ecfd799 100644
@@ -94,6 +94,7 @@ void spl_parse_image_header(const struct image_header *header);
 void omap_rev_string(void);
 int spl_uboot_key(void);
 void spl_board_prepare_for_linux(void);
+int spl_start_uboot(void);
 
 /* NAND SPL functions */
 void spl_nand_load_image(void);

1.7.5.4
---
 arch/arm/cpu/armv7/omap-common/spl.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
index f99c0e5..5f7ba2c 100644
@@ -101,7 +101,7 @@ void spl_parse_image_header(const struct image_header *header)
 		/* Signature not found - assume u-boot.bin */
 		printf("mkimage signature not found - ih_magic = %x\n",
 			header->ih_magic);
-		puts("Assuming u-boot.bin ..\n");
+		debug("Assuming u-boot.bin ..\n");
 		/* Let's assume U-Boot will not be more than 200 KB */
 		spl_image.size = 200 * 1024;
 		spl_image.entry_point = CONFIG_SYS_TEXT_BASE;

1.7.5.4
---
 board/timll/devkit8000/devkit8000.c |   18 ++++++++++++++++++
 include/configs/devkit8000.h        |    7 +++++--
 2 files changed, 23 insertions(+), 2 deletions(-)
index dded697..d75e86b 100644
@@ -41,6 +41,7 @@
 #include <asm/arch/mem.h>
 #include <asm/mach-types.h>
 #include "devkit8000.h"
+#include <asm/gpio.h>
 #ifdef CONFIG_DRIVER_DM9000
 #include <net.h>
 #include <netdev.h>

@@ -161,6 +162,23 @@ void spl_board_prepare_for_linux(void)
 	gpmc_dm9000_config();
 }
 
+/*
+ * devkit8000 specific implementation of spl_start_uboot()
+ *
+ * RETURN
+ * 0 if the button is not pressed
+ * 1 if the button is pressed
+ */
+int spl_start_uboot(void)
+{
+	int val = 0;
+	if (!gpio_request(CONFIG_SPL_OS_BOOT_KEY, "U-Boot key")) {
+		gpio_direction_input(CONFIG_SPL_OS_BOOT_KEY);
+		val = gpio_get_value(CONFIG_SPL_OS_BOOT_KEY);
+		gpio_free(CONFIG_SPL_OS_BOOT_KEY);
+	}
+	return !val;
+}
 #endif
 
 /*

index d3ca0dd..2bcab72 100644
@@ -35,7 +35,7 @@
 #define CONFIG_OMAP		1	/* in a TI OMAP core */
 #define CONFIG_OMAP34XX		1	/* which is a 34XX */
 #define CONFIG_OMAP3_DEVKIT8000	1	/* working with DevKit8000 */
-
+#define CONFIG_MACH_TYPE	MACH_TYPE_DEVKIT8000
 /*
  * 1MB into the SDRAM to allow for SPL's bss at the beginning of SDRAM
  * 64 bytes before this address should be set aside for u-boot.img's

@@ -327,7 +327,7 @@
 #define CONFIG_SPL_MAX_SIZE		0xB400  /* 45 K */
 #define CONFIG_SPL_STACK		LOW_LEVEL_SRAM_STACK
 
-#define CONFIG_SPL_BSS_START_ADDR	0x80000000 /*CONFIG_SYS_SDRAM_BASE*/
+#define CONFIG_SPL_BSS_START_ADDR       0x80000500 /* leave space for bootargs*/
 #define CONFIG_SPL_BSS_MAX_SIZE		0x80000
 
 /* NAND boot config */

@@ -357,6 +357,9 @@
 #define CONFIG_SYS_SPL_MALLOC_SIZE	0x100000	/* 1 MB */
 
 /* SPL OS boot options */
+#define CONFIG_SPL_OS_BOOT
+#define CONFIG_SPL_OS_BOOT_KEY	26
+
 #define CONFIG_CMD_SPL
 #define CONFIG_CMD_SPL_WRITE_SIZE       0x400 /* 1024 byte */
 #define CONFIG_CMD_SPL_NAND_OFS (CONFIG_SYS_NAND_SPL_KERNEL_OFFS+\

1.7.5.4
---
 arch/arm/cpu/armv7/Makefile |    2 --
 arch/arm/cpu/armv7/cpu.c    |    2 ++
 arch/arm/lib/Makefile       |    5 +++--
 3 files changed, 5 insertions(+), 4 deletions(-)
index f97fa3d..6b2addc 100644
@@ -27,9 +27,7 @@ LIB	= $(obj)lib$(CPU).o
 
 START	:= start.o
 
-ifndef CONFIG_SPL_BUILD
 COBJS	+= cache_v7.o
-endif
 
 COBJS	+= cpu.o
 COBJS	+= syslib.o

index 662c496..c6fa8ef 100644
@@ -52,7 +52,9 @@ int cleanup_before_linux(void)
 	 *
 	 * we turn off caches etc ...
 	 */
+#ifndef CONFIG_SPL_BUILD
 	disable_interrupts();
+#endif
 
 	/*
 	 * Turn off I-cache and invalidate it

index 300c8fa..39a9550 100644
@@ -39,8 +39,6 @@ GLCOBJS	+= div0.o
 
 COBJS-y	+= board.o
 COBJS-y	+= bootm.o
-COBJS-y	+= cache.o
-COBJS-y	+= cache-cp15.o
 COBJS-$(CONFIG_SYS_L2_PL310) += cache-pl310.o
 COBJS-y	+= interrupts.o
 COBJS-y	+= reset.o

@@ -48,6 +46,9 @@ SOBJS-$(CONFIG_USE_ARCH_MEMSET) += memset.o
 SOBJS-$(CONFIG_USE_ARCH_MEMCPY) += memcpy.o
 endif
 
+COBJS-y	+= cache.o
+COBJS-y	+= cache-cp15.o
+
 SRCS	:= $(GLSOBJS:.o=.S) $(GLCOBJS:.o=.c) \
 	   $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c)
 OBJS	:= $(addprefix $(obj),$(SOBJS-y) $(COBJS-y))

1.7.5.4
---
 arch/arm/cpu/armv7/omap3/board.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
index 871aa37..d942bfe 100644
@@ -92,7 +92,9 @@ u32 omap_boot_device(void)
 
 void spl_board_init(void)
 {
+#ifdef CONFIG_SPL_I2C_SUPPORT
 	i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
+#endif
 }
 #endif /* CONFIG_SPL_BUILD */
 

1.7.5.4
---
 arch/arm/cpu/armv7/omap-common/spl.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
index 5f7ba2c..d9dd864 100644
@@ -124,7 +124,7 @@ __noreturn void jump_to_image_linux(void *arg)
 		__attribute__ ((noreturn));
 	image_entry_arg_t image_entry =
 		(image_entry_arg_t) spl_image.entry_point;
-	/* cleanup_before_linux(); */ /*write SPL function for that*/
+	cleanup_before_linux();
 	image_entry(0, CONFIG_MACH_TYPE, arg);
 }
 #endif

1.7.5.4
---
 board/technexion/twister/twister.c |   23 +++++++++++++++++++++++
 include/configs/twister.h          |   12 ++++++++++++
 2 files changed, 35 insertions(+), 0 deletions(-)
index 06fac7b..4d34d24 100644
@@ -114,3 +114,26 @@ int board_mmc_init(bd_t *bis)
 	return omap_mmc_init(0);
 }
 #endif
+
+#ifdef CONFIG_SPL_OS_BOOT
+/*
+ * Do board specific preperation before SPL
+ * Linux boot
+ */
+void spl_board_prepare_for_linux(void)
+{
+	/* init cs for extern lan */
+	enable_gpmc_cs_config(gpmc_smc911, &gpmc_cfg->cs[5],
+		CONFIG_SMC911X_BASE, GPMC_SIZE_16M);
+}
+int spl_start_uboot(void)
+{
+	int val = 0;
+	if (!gpio_request(CONFIG_SPL_OS_BOOT_KEY, "U-Boot key")) {
+		gpio_direction_input(CONFIG_SPL_OS_BOOT_KEY);
+		val = gpio_get_value(CONFIG_SPL_OS_BOOT_KEY);
+		gpio_free(CONFIG_SPL_OS_BOOT_KEY);
+	}
+	return val;
+}
+#endif

index 64a886d..a852481 100644
@@ -51,4 +51,16 @@
 #define	CONFIG_EXTRA_ENV_SETTINGS	CONFIG_TAM3517_SETTINGS \
 	"bootcmd=run nandboot\0"
 
+/* SPL OS boot options */
+#define CONFIG_CMD_SPL
+#define CONFIG_CMD_SPL_WRITE_SIZE	0x400 /* 1024 byte */
+#define CONFIG_SYS_NAND_SPL_KERNEL_OFFS	0x00200000
+#define CONFIG_CMD_SPL_NAND_OFS	(CONFIG_SYS_NAND_SPL_KERNEL_OFFS+\
+						0x600000)
+#define CONFIG_SPL_OS_BOOT
+#define CONFIG_SPL_OS_BOOT_KEY	55
+
+#define CONFIG_SYS_SPL_ARGS_ADDR	(PHYS_SDRAM_1 + 0x100)
+#define CONFIG_SPL_BOARD_INIT
+
 #endif /* __CONFIG_H */

1.7.5.4
---
 arch/arm/include/asm/bootm.h |   26 ++++
 arch/arm/lib/bootm.c         |  341 ++++++++++++++++++++++--------------------
 2 files changed, 202 insertions(+), 165 deletions(-)
 create mode 100644 arch/arm/include/asm/bootm.h
new file mode 100644
index 0000000..db2ff94
@@ -0,0 +1,26 @@
+/* Copyright (C) 2011
+ * Corscience GmbH & Co. KG - Simon Schwarz <[email protected]>
+ *
+ * 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
+ *
+ */
+#ifndef ARM_BOOTM_H
+#define ARM_BOOTM_H
+
+#ifdef CONFIG_USB_DEVICE
+extern void udc_disconnect(void);
+#endif
+
+#endif

1.7.5.4
Albert.
Tom
=====================================================================
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: +49-8142-66989-0 Fax: +49-8142-66989-80  Email: office at denx.de
=====================================================================
Tom
 common/Makefile         |    1 +
 common/cmd_spl.c        |  188 +++++++++++++++++++++++++++++++++++++++++++++++
 doc/README.commands.spl |   31 ++++++++
 include/cmd_spl.h       |   31 ++++++++
 include/image.h         |    2 +
 5 files changed, 253 insertions(+), 0 deletions(-)
 create mode 100644 common/cmd_spl.c
 create mode 100644 doc/README.commands.spl
 create mode 100644 include/cmd_spl.h
index 0189aac..819c1f7 100644
@@ -162,6 +162,7 @@ COBJS-$(CONFIG_USB_STORAGE) += usb_storage.o
 endif
 COBJS-$(CONFIG_CMD_XIMG) += cmd_ximg.o
 COBJS-$(CONFIG_YAFFS2) += cmd_yaffs2.o
+COBJS-$(CONFIG_CMD_SPL) += cmd_spl.o
 
 # others
 ifdef CONFIG_DDR_SPD

new file mode 100644
index 0000000..ac33273
@@ -0,0 +1,31 @@
+The spl command is used to export a boot parameter image to RAM. Later
+it may implement more functions connected to the SPL.
+
+SUBCOMMAND EXPORT
+To execute the command everything has to be in place as if bootm should be
+used. (kernel image, initrd-image, fdt-image etc.)
+
+export has two subcommands:
+	atags: exports the ATAGS
+	fdt: exports the FDT
+
+Call is:
+spl export <ftd|atags> [kernel_addr] [initrd_addr] [fdt_addr if fdt]
+
+
+TYPICAL CALL
+
+on OMAP3:
+nandecc hw
+nand read 0x82000000 0x280000 0x400000 	/* Read kernel image from NAND*/
+spl export atags 			/* export ATAGS */
+nand erase 0x680000 0x20000		/* erase - one page */
+nand write 0x80000100 0x680000 0x20000	/* write the image - one page */
+
+call with FDT:
+nandecc hw
+nand read 0x82000000 0x280000 0x400000 	/* Read kernel image from NAND*/
+tftpboot 0x80000100 devkit8000.dtb /* Read fdt */
+spl export fdt 0x82000000 - 0x80000100	/* export FDT */
+nand erase 0x680000 0x20000		/* erase - one page */
+nand write <adress shown by spl export> 0x680000 0x20000

new file mode 100644
index 0000000..6d6206d
@@ -0,0 +1,31 @@
+/* Copyright (C) 2011
+ * Corscience GmbH & Co. KG - Simon Schwarz <[email protected]>
+ *
+ * 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
+ */
+#ifndef _NAND_SPL_H_
+#define	_NAND_SPL_H_
+
+#define SPL_EXPORT	(0x00000001)
+
+#define SPL_EXPORT_FDT		(0x00000001)
+#define SPL_EXPORT_ATAGS	(0x00000002)
+#define SPL_EXPORT_LAST		SPL_EXPORT_ATAGS
+
+#endif /* _NAND_SPL_H_ */

index bbf80f0..a1c6e4e 100644
@@ -268,6 +268,8 @@ typedef struct bootm_headers {
 #endif
 } bootm_headers_t;
 
+extern bootm_headers_t images;
+
 /*
  * Some systems (for example LWMON) have very short watchdog periods;
  * we must make sure to split long operations like memmove() or

1.7.5.4
---
 include/configs/devkit8000.h |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)
index 2b6a6ee..e323877 100644
@@ -351,4 +351,12 @@
 #define CONFIG_SYS_SPL_MALLOC_START	0x80208000
 #define CONFIG_SYS_SPL_MALLOC_SIZE	0x100000	/* 1 MB */
 
+/* SPL OS boot options */
+#define CONFIG_CMD_SPL
+#define CONFIG_CMD_SPL_WRITE_SIZE       0x400 /* 1024 byte */
+#define CONFIG_CMD_SPL_NAND_OFS (CONFIG_SYS_NAND_SPL_KERNEL_OFFS+\
+					0x400000)
+#define CONFIG_SYS_NAND_SPL_KERNEL_OFFS 0x280000
+#define CONFIG_SYS_SPL_ARGS_ADDR        (PHYS_SDRAM_1 + 0x100)
+
 #endif /* __CONFIG_H */

1.7.5.4
	Address where the kernel boot arguments are expected - this is
	normally RAM-start + 0x100 (on ARM)
---
 arch/arm/cpu/armv7/omap-common/spl_nand.c |   66 ++++++++++++++++++++++-------
 1 files changed, 50 insertions(+), 16 deletions(-)
index 38d06b1..2a66214 100644
@@ -24,6 +24,7 @@
 #include <asm/u-boot.h>
 #include <asm/utils.h>
 #include <asm/arch/sys_proto.h>
+#include <asm/io.h>
 #include <nand.h>
 #include <version.h>
 #include <asm/omap_common.h>

@@ -32,6 +33,9 @@
 void spl_nand_load_image(void)
 {
 	struct image_header *header;
+	int *src __attribute__((unused));
+	int *dst __attribute__((unused));
+
 	switch (omap_boot_mode()) {
 	case NAND_MODE_HW_ECC:
 		debug("spl: nand - using hw ecc\n");

@@ -45,26 +49,56 @@ void spl_nand_load_image(void)
 
 	/*use CONFIG_SYS_TEXT_BASE as temporary storage area */
 	header = (struct image_header *)(CONFIG_SYS_TEXT_BASE);
+#ifdef CONFIG_SPL_OS_BOOT
+	if (!spl_uboot_key()) {
+		/*
+		 * load parameter image
+		 * load to temp position since nand_spl_load_image reads
+		 * a whole block which is typically larger than
+		 * CONFIG_CMD_SAVEBP_WRITE_SIZE therefore may overwrite
+		 * following sections like BSS
+		 */
+		nand_spl_load_image(CONFIG_CMD_SPL_NAND_OFS,
+			CONFIG_CMD_SPL_WRITE_SIZE,
+			(void *)CONFIG_SYS_TEXT_BASE);
+		/* copy to destintion */
+		for (dst = (int *)CONFIG_SYS_SPL_ARGS_ADDR,
+				src = (int *)CONFIG_SYS_TEXT_BASE;
+				src < (int *)(CONFIG_SYS_TEXT_BASE +
+				CONFIG_CMD_SPL_WRITE_SIZE);
+				src++, dst++) {
+			writel(readl(src), dst);
+		}
 
+		/* load linux */
+		nand_spl_load_image(CONFIG_SYS_NAND_SPL_KERNEL_OFFS,
+			CONFIG_SYS_NAND_PAGE_SIZE, (void *)header);
+		spl_parse_image_header(header);
+		nand_spl_load_image(CONFIG_SYS_NAND_SPL_KERNEL_OFFS,
+			spl_image.size, (void *)spl_image.load_addr);
+	} else
+#endif
+	{
 #ifdef CONFIG_NAND_ENV_DST
-	nand_spl_load_image(CONFIG_ENV_OFFSET,
-		CONFIG_SYS_NAND_PAGE_SIZE, (void *)header);
-	spl_parse_image_header(header);
-	nand_spl_load_image(CONFIG_ENV_OFFSET, spl_image.size,
-		(void *)image_load_addr);
+		nand_spl_load_image(CONFIG_ENV_OFFSET,
+			CONFIG_SYS_NAND_PAGE_SIZE, (void *)header);
+		spl_parse_image_header(header);
+		nand_spl_load_image(CONFIG_ENV_OFFSET, spl_image.size,
+			(void *)spl_image.load_addr);
 #ifdef CONFIG_ENV_OFFSET_REDUND
-	nand_spl_load_image(CONFIG_ENV_OFFSET_REDUND,
-		CONFIG_SYS_NAND_PAGE_SIZE, (void *)header);
-	spl_parse_image_header(header);
-	nand_spl_load_image(CONFIG_ENV_OFFSET_REDUND, spl_image.size,
-		(void *)image_load_addr);
+		nand_spl_load_image(CONFIG_ENV_OFFSET_REDUND,
+			CONFIG_SYS_NAND_PAGE_SIZE, (void *)header);
+		spl_parse_image_header(header);
+		nand_spl_load_image(CONFIG_ENV_OFFSET_REDUND, spl_image.size,
+			(void *)spl_image.load_addr);
 #endif
 #endif
-	/* Load u-boot */
-	nand_spl_load_image(CONFIG_SYS_NAND_U_BOOT_OFFS,
-		CONFIG_SYS_NAND_PAGE_SIZE, (void *)header);
-	spl_parse_image_header(header);
-	nand_spl_load_image(CONFIG_SYS_NAND_U_BOOT_OFFS,
-		spl_image.size, (void *)spl_image.load_addr);
+		/* Load u-boot */
+		nand_spl_load_image(CONFIG_SYS_NAND_U_BOOT_OFFS,
+			CONFIG_SYS_NAND_PAGE_SIZE, (void *)header);
+		spl_parse_image_header(header);
+		nand_spl_load_image(CONFIG_SYS_NAND_U_BOOT_OFFS,
+			spl_image.size, (void *)spl_image.load_addr);
+	}
 	nand_deselect();
 }

1.7.5.4
---
 arch/arm/include/asm/omap_common.h  |    1 +
 board/timll/devkit8000/devkit8000.c |   19 +++++++++++++++++++
 2 files changed, 20 insertions(+), 0 deletions(-)
index 25f95b4..85eac7d 100644
@@ -92,6 +92,7 @@ u32 omap_boot_mode(void);
 /* SPL common function s*/
 void spl_parse_image_header(const struct image_header *header);
 void omap_rev_string(void);
+void spl_board_prepare_for_linux(void);
 
 /* NAND SPL functions */
 void spl_nand_load_image(void);

index 10f189e..dded697 100644
@@ -73,6 +73,13 @@ int board_init(void)
 	return 0;
 }
 
+/* Configure GPMC registers for DM9000 */
+static void gpmc_dm9000_config(void)
+{
+	enable_gpmc_cs_config(gpmc_net_config, &gpmc_cfg->cs[6],
+		CONFIG_DM9000_BASE, GPMC_SIZE_16M);
+}
+
 /*
  * Routine: misc_init_r
  * Description: Configure board specific parts

@@ -144,6 +151,18 @@ int board_eth_init(bd_t *bis)
 }
 #endif
 
+#ifdef CONFIG_SPL_OS_BOOT
+/*
+ * Do board specific preperation before SPL
+ * Linux boot
+ */
+void spl_board_prepare_for_linux(void)
+{
+	gpmc_dm9000_config();
+}
+
+#endif
+
 /*
  * Routine: get_board_mem_timings
  * Description: If we use SPL then there is no x-loader nor config header

1.7.5.4
	Address where the kernel boot arguments are expected - this is
	normaly RAM-begin + 0x100
---
 arch/arm/cpu/armv7/omap-common/spl.c      |   44 ++++++++++++++++++++++++
 arch/arm/cpu/armv7/omap-common/spl_nand.c |   53 ++++++++++++++++------------
 arch/arm/include/asm/omap_common.h        |    1 +
 3 files changed, 75 insertions(+), 23 deletions(-)
index 99bb382..6b54ac7 100644
@@ -65,6 +65,25 @@ void board_init_f(ulong dummy)
 	relocate_code(CONFIG_SPL_STACK, &gdata, CONFIG_SPL_TEXT_BASE);
 }
 
+/*
+ * Default function to determine if u-boot or the OS should
+ * be started. This implementation always returns 1.
+ *
+ * Please implement your own board specific funcion to do this.
+ *
+ * RETURN
+ * 0 to not start u-boot
+ * positive if u-boot should start
+ */
+#ifdef CONFIG_SPL_OS_BOOT
+__weak int spl_start_uboot(void)
+{
+	printf("SPL: Please implement spl_start_uboot() for your board\n");
+	printf("SPL: Direct Linux boot not active!\n");
+	return 1;
+}
+#endif
+
 void spl_parse_image_header(const struct image_header *header)
 {
 	u32 header_size = sizeof(struct image_header);

@@ -92,6 +111,24 @@ void spl_parse_image_header(const struct image_header *header)
 	}
 }
 
+/*
+ * This function jumps to an image with argument. Normally an FDT or ATAGS
+ * image.
+ * arg: Pointer to paramter image in RAM
+ */
+#ifdef CONFIG_SPL_OS_BOOT
+static void __noreturn jump_to_image_linux(void *arg)
+{
+	debug("Entering kernel arg pointer: 0x%p\n", arg);
+	typedef void (*image_entry_arg_t)(int, int, void *)
+		__attribute__ ((noreturn));
+	image_entry_arg_t image_entry =
+		(image_entry_arg_t) spl_image.entry_point;
+	/* cleanup_before_linux(); */ /*write SPL function for that*/
+	image_entry(0, CONFIG_MACH_TYPE, arg);
+}
+#endif
+
 static void __noreturn jump_to_image_no_args(void)
 {
 	typedef void __noreturn (*image_entry_noargs_t)(u32 *);

@@ -149,6 +186,13 @@ void board_init_r(gd_t *id, ulong dummy)
 		debug("Jumping to U-Boot\n");
 		jump_to_image_no_args();
 		break;
+#ifdef CONFIG_SPL_OS_BOOT
+	case IH_OS_LINUX:
+		debug("Jumping to Linux\n");
+		spl_board_prepare_for_linux();
+		jump_to_image_linux((void *)CONFIG_SYS_SPL_ARGS_ADDR);
+		break;
+#endif
 	default:
 		puts("Unsupported OS image.. Jumping nevertheless..\n");
 		jump_to_image_no_args();

index 85eac7d..6f25948 100644
@@ -93,6 +93,7 @@ u32 omap_boot_mode(void);
 void spl_parse_image_header(const struct image_header *header);
 void omap_rev_string(void);
 void spl_board_prepare_for_linux(void);
+int spl_start_uboot(void);
 
 /* NAND SPL functions */
 void spl_nand_load_image(void);

1.7.5.4
---
 arch/arm/cpu/armv7/omap-common/spl.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
index 6b54ac7..963acb0 100644
@@ -101,7 +101,7 @@ void spl_parse_image_header(const struct image_header *header)
 		/* Signature not found - assume u-boot.bin */
 		printf("mkimage signature not found - ih_magic = %x\n",
 			header->ih_magic);
-		puts("Assuming u-boot.bin ..\n");
+		debug("Assuming u-boot.bin ..\n");
 		/* Let's assume U-Boot will not be more than 200 KB */
 		spl_image.size = 200 * 1024;
 		spl_image.entry_point = CONFIG_SYS_TEXT_BASE;

1.7.5.4
---
 board/timll/devkit8000/devkit8000.c |   18 ++++++++++++++++++
 include/configs/devkit8000.h        |    7 +++++--
 2 files changed, 23 insertions(+), 2 deletions(-)
index dded697..d75e86b 100644
@@ -41,6 +41,7 @@
 #include <asm/arch/mem.h>
 #include <asm/mach-types.h>
 #include "devkit8000.h"
+#include <asm/gpio.h>
 #ifdef CONFIG_DRIVER_DM9000
 #include <net.h>
 #include <netdev.h>

@@ -161,6 +162,23 @@ void spl_board_prepare_for_linux(void)
 	gpmc_dm9000_config();
 }
 
+/*
+ * devkit8000 specific implementation of spl_start_uboot()
+ *
+ * RETURN
+ * 0 if the button is not pressed
+ * 1 if the button is pressed
+ */
+int spl_start_uboot(void)
+{
+	int val = 0;
+	if (!gpio_request(CONFIG_SPL_OS_BOOT_KEY, "U-Boot key")) {
+		gpio_direction_input(CONFIG_SPL_OS_BOOT_KEY);
+		val = gpio_get_value(CONFIG_SPL_OS_BOOT_KEY);
+		gpio_free(CONFIG_SPL_OS_BOOT_KEY);
+	}
+	return !val;
+}
 #endif
 
 /*

index e323877..eb7c376 100644
@@ -35,7 +35,7 @@
 #define CONFIG_OMAP		1	/* in a TI OMAP core */
 #define CONFIG_OMAP34XX		1	/* which is a 34XX */
 #define CONFIG_OMAP3_DEVKIT8000	1	/* working with DevKit8000 */
-
+#define CONFIG_MACH_TYPE	MACH_TYPE_DEVKIT8000
 /*
  * 1MB into the SDRAM to allow for SPL's bss at the beginning of SDRAM
  * 64 bytes before this address should be set aside for u-boot.img's

@@ -327,7 +327,7 @@
 #define CONFIG_SPL_MAX_SIZE		0xB400  /* 45 K */
 #define CONFIG_SPL_STACK		LOW_LEVEL_SRAM_STACK
 
-#define CONFIG_SPL_BSS_START_ADDR	0x80000000 /*CONFIG_SYS_SDRAM_BASE*/
+#define CONFIG_SPL_BSS_START_ADDR       0x80000500 /* leave space for bootargs*/
 #define CONFIG_SPL_BSS_MAX_SIZE		0x80000
 
 /* NAND boot config */

@@ -352,6 +352,9 @@
 #define CONFIG_SYS_SPL_MALLOC_SIZE	0x100000	/* 1 MB */
 
 /* SPL OS boot options */
+#define CONFIG_SPL_OS_BOOT
+#define CONFIG_SPL_OS_BOOT_KEY	26
+
 #define CONFIG_CMD_SPL
 #define CONFIG_CMD_SPL_WRITE_SIZE       0x400 /* 1024 byte */
 #define CONFIG_CMD_SPL_NAND_OFS (CONFIG_SYS_NAND_SPL_KERNEL_OFFS+\

1.7.5.4
---
 arch/arm/cpu/armv7/Makefile |    2 --
 arch/arm/cpu/armv7/cpu.c    |    2 ++
 arch/arm/lib/Makefile       |    5 +++--
 3 files changed, 5 insertions(+), 4 deletions(-)
index f97fa3d..6b2addc 100644
@@ -27,9 +27,7 @@ LIB	= $(obj)lib$(CPU).o
 
 START	:= start.o
 
-ifndef CONFIG_SPL_BUILD
 COBJS	+= cache_v7.o
-endif
 
 COBJS	+= cpu.o
 COBJS	+= syslib.o

index 662c496..c6fa8ef 100644
@@ -52,7 +52,9 @@ int cleanup_before_linux(void)
 	 *
 	 * we turn off caches etc ...
 	 */
+#ifndef CONFIG_SPL_BUILD
 	disable_interrupts();
+#endif
 
 	/*
 	 * Turn off I-cache and invalidate it

index 300c8fa..39a9550 100644
@@ -39,8 +39,6 @@ GLCOBJS	+= div0.o
 
 COBJS-y	+= board.o
 COBJS-y	+= bootm.o
-COBJS-y	+= cache.o
-COBJS-y	+= cache-cp15.o
 COBJS-$(CONFIG_SYS_L2_PL310) += cache-pl310.o
 COBJS-y	+= interrupts.o
 COBJS-y	+= reset.o

@@ -48,6 +46,9 @@ SOBJS-$(CONFIG_USE_ARCH_MEMSET) += memset.o
 SOBJS-$(CONFIG_USE_ARCH_MEMCPY) += memcpy.o
 endif
 
+COBJS-y	+= cache.o
+COBJS-y	+= cache-cp15.o
+
 SRCS	:= $(GLSOBJS:.o=.S) $(GLCOBJS:.o=.c) \
 	   $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c)
 OBJS	:= $(addprefix $(obj),$(SOBJS-y) $(COBJS-y))

1.7.5.4
---
 arch/arm/cpu/armv7/omap3/board.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
index aabc651..1fee574 100644
@@ -92,7 +92,9 @@ u32 omap_boot_device(void)
 
 void spl_board_init(void)
 {
+#ifdef CONFIG_SPL_I2C_SUPPORT
 	i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
+#endif
 }
 #endif /* CONFIG_SPL_BUILD */
 

1.7.5.4
---
 arch/arm/cpu/armv7/omap-common/spl.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
index 963acb0..0f2e0a2 100644
@@ -124,7 +124,7 @@ static void __noreturn jump_to_image_linux(void *arg)
 		__attribute__ ((noreturn));
 	image_entry_arg_t image_entry =
 		(image_entry_arg_t) spl_image.entry_point;
-	/* cleanup_before_linux(); */ /*write SPL function for that*/
+	cleanup_before_linux();
 	image_entry(0, CONFIG_MACH_TYPE, arg);
 }
 #endif

1.7.5.4
---
 board/technexion/twister/twister.c |   23 +++++++++++++++++++++++
 include/configs/twister.h          |   12 ++++++++++++
 2 files changed, 35 insertions(+), 0 deletions(-)
index 50c70ab..b927586 100644
@@ -136,3 +136,26 @@ int board_mmc_init(bd_t *bis)
 	return omap_mmc_init(0);
 }
 #endif
+
+#ifdef CONFIG_SPL_OS_BOOT
+/*
+ * Do board specific preperation before SPL
+ * Linux boot
+ */
+void spl_board_prepare_for_linux(void)
+{
+	/* init cs for extern lan */
+	enable_gpmc_cs_config(gpmc_smc911, &gpmc_cfg->cs[5],
+		CONFIG_SMC911X_BASE, GPMC_SIZE_16M);
+}
+int spl_start_uboot(void)
+{
+	int val = 0;
+	if (!gpio_request(CONFIG_SPL_OS_BOOT_KEY, "U-Boot key")) {
+		gpio_direction_input(CONFIG_SPL_OS_BOOT_KEY);
+		val = gpio_get_value(CONFIG_SPL_OS_BOOT_KEY);
+		gpio_free(CONFIG_SPL_OS_BOOT_KEY);
+	}
+	return val;
+}
+#endif

index 64a886d..a852481 100644
@@ -51,4 +51,16 @@
 #define	CONFIG_EXTRA_ENV_SETTINGS	CONFIG_TAM3517_SETTINGS \
 	"bootcmd=run nandboot\0"
 
+/* SPL OS boot options */
+#define CONFIG_CMD_SPL
+#define CONFIG_CMD_SPL_WRITE_SIZE	0x400 /* 1024 byte */
+#define CONFIG_SYS_NAND_SPL_KERNEL_OFFS	0x00200000
+#define CONFIG_CMD_SPL_NAND_OFS	(CONFIG_SYS_NAND_SPL_KERNEL_OFFS+\
+						0x600000)
+#define CONFIG_SPL_OS_BOOT
+#define CONFIG_SPL_OS_BOOT_KEY	55
+
+#define CONFIG_SYS_SPL_ARGS_ADDR	(PHYS_SDRAM_1 + 0x100)
+#define CONFIG_SPL_BOARD_INIT
+
 #endif /* __CONFIG_H */

1.7.5.4
---
 arch/arm/include/asm/bootm.h |   26 ++++
 arch/arm/lib/bootm.c         |  341 ++++++++++++++++++++++--------------------
 2 files changed, 202 insertions(+), 165 deletions(-)
 create mode 100644 arch/arm/include/asm/bootm.h
new file mode 100644
index 0000000..db2ff94
@@ -0,0 +1,26 @@
+/* Copyright (C) 2011
+ * Corscience GmbH & Co. KG - Simon Schwarz <[email protected]>
+ *
+ * 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
+ *
+ */
+#ifndef ARM_BOOTM_H
+#define ARM_BOOTM_H
+
+#ifdef CONFIG_USB_DEVICE
+extern void udc_disconnect(void);
+#endif
+
+#endif

1.7.5.4
+static void boot_jump_linux(bootm_headers_t *images)
+{
+	int machid = gd->bd->bi_arch_number;

+	if (s) {
+		strict_strtoul(s, 16, (long unsigned int *) &machid);
+		printf("Using machid 0x%x from environment\n", machid);
+	}

index 03c25e9..fc73ca9 100644
@@ -310,7 +310,7 @@ static void boot_prep_linux(bootm_headers_t *images)
 /* Subcommand: GO */
 static void boot_jump_linux(bootm_headers_t *images)
 {
-	int machid = gd->bd->bi_arch_number;
+	unsigned long machid = gd->bd->bi_arch_number;
 	char *s;
 	void (*kernel_entry)(int zero, int arch, uint params);
 

@@ -318,8 +318,8 @@ static void boot_jump_linux(bootm_headers_t *images)
 
 	s = getenv("machid");
 	if (s) {
-		strict_strtoul(s, 16, (long unsigned int *) &machid);
-		printf("Using machid 0x%x from environment\n", machid);
+		strict_strtoul(s, 16, &machid);
+		printf("Using machid 0x%lx from environment\n", machid);
 	}
 
 	debug("## Transferring control to Linux (at address %08lx)" \

Tom
---
 board/ait/cam_enc_4xx/cam_enc_4xx.c |   48 +++++++++++++++++-----------------
 1 files changed, 24 insertions(+), 24 deletions(-)
index 5586576..bb29cf3 100644
@@ -503,7 +503,7 @@ struct fit_images_info {
 	size_t size;
 };
 
-static struct fit_images_info images[10];
+static struct fit_images_info imgs[10];
 
 struct menu_display {
 	char	title[50];

@@ -688,14 +688,14 @@ static int ait_menu_install_images(void)
 	 * img_writeramdisk: write ramdisk to ubi volume
 	 */
 
-	while (images[count].type != IH_TYPE_INVALID) {
+	while (imgs[count].type != IH_TYPE_INVALID) {
 		printf("Installing %s\n",
-			genimg_get_type_name(images[count].type));
-		sprintf(s, "%p", images[count].data);
+			genimg_get_type_name(imgs[count].type));
+		sprintf(s, "%p", imgs[count].data);
 		setenv("img_addr_r", s);
-		sprintf(s, "%lx", (unsigned long)images[count].size);
+		sprintf(s, "%lx", (unsigned long)imgs[count].size);
 		setenv("filesize", s);
-		switch (images[count].subtype) {
+		switch (imgs[count].subtype) {
 		case FIT_SUBTYPE_DF_ENV_IMAGE:
 			ret = run_command2("run img_writedfenv", 0);
 			break;

@@ -865,7 +865,7 @@ static int ait_menu_check_image(void)
 	int found_uboot = -1;
 	int found_ramdisk = -1;
 
-	memset(images, 0, sizeof(images));
+	memset(imgs, 0, sizeof(imgs));
 	s = getenv("fit_addr_r");
 	fit_addr = s ? (unsigned long)simple_strtol(s, NULL, 16) : \
 			CONFIG_BOARD_IMG_ADDR_R;

@@ -911,7 +911,7 @@ static int ait_menu_check_image(void)
 			fit_image_print(addr, noffset, "");
 
 			fit_image_get_type(addr, noffset,
-				&images[count].type);
+				&imgs[count].type);
 			/* Mandatory properties */
 			ret = fit_get_desc(addr, noffset, &desc);
 			printf("Description:  ");

@@ -925,33 +925,33 @@ static int ait_menu_check_image(void)
 			if (ret) {
 				printf("unavailable\n");
 			} else {
-				images[count].subtype = ait_subtype_nr(subtype);
+				imgs[count].subtype = ait_subtype_nr(subtype);
 				printf("%s %d\n", subtype,
-					images[count].subtype);
+					imgs[count].subtype);
 			}
 
-			sprintf(images[count].desc, "%s", desc);
+			sprintf(imgs[count].desc, "%s", desc);
 
 			ret = fit_image_get_data(addr, noffset,
-				&images[count].data,
-				&images[count].size);
+				&imgs[count].data,
+				&imgs[count].size);
 
 			printf("Data Size:    ");
 			if (ret)
 				printf("unavailable\n");
 			else
-				genimg_print_size(images[count].size);
-			printf("Data @ %p\n", images[count].data);
+				genimg_print_size(imgs[count].size);
+			printf("Data @ %p\n", imgs[count].data);
 			count++;
 		}
 	}
 
 	for (i = 0; i < count; i++) {
-		if (images[i].subtype == FIT_SUBTYPE_UBOOT_IMAGE)
+		if (imgs[i].subtype == FIT_SUBTYPE_UBOOT_IMAGE)
 			found_uboot = i;
-		if (images[i].type == IH_TYPE_RAMDISK) {
+		if (imgs[i].type == IH_TYPE_RAMDISK) {
 			found_ramdisk = i;
-			images[i].subtype = FIT_SUBTYPE_RAMDISK_IMAGE;
+			imgs[i].subtype = FIT_SUBTYPE_RAMDISK_IMAGE;
 		}
 	}
 

@@ -959,31 +959,31 @@ static int ait_menu_check_image(void)
 	if (found_uboot >= 0) {
 		s = getenv("dvn_boot_vers");
 		if (s) {
-			ret = strcmp(s, images[found_uboot].desc);
+			ret = strcmp(s, imgs[found_uboot].desc);
 			if (ret != 0) {
 				setenv("dvn_boot_vers",
-					images[found_uboot].desc);
+					imgs[found_uboot].desc);
 			} else {
 				found_uboot = -1;
 				printf("no new uboot version\n");
 			}
 		} else {
-			setenv("dvn_boot_vers", images[found_uboot].desc);
+			setenv("dvn_boot_vers", imgs[found_uboot].desc);
 		}
 	}
 	if (found_ramdisk >= 0) {
 		s = getenv("dvn_app_vers");
 		if (s) {
-			ret = strcmp(s, images[found_ramdisk].desc);
+			ret = strcmp(s, imgs[found_ramdisk].desc);
 			if (ret != 0) {
 				setenv("dvn_app_vers",
-					images[found_ramdisk].desc);
+					imgs[found_ramdisk].desc);
 			} else {
 				found_ramdisk = -1;
 				printf("no new ramdisk version\n");
 			}
 		} else {
-			setenv("dvn_app_vers", images[found_ramdisk].desc);
+			setenv("dvn_app_vers", imgs[found_ramdisk].desc);
 		}
 	}
 	if ((found_uboot == -1) && (found_ramdisk == -1))

1.7.5.4
Tom
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
Often it is fatal to live too long.                          - Racine
Tom
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
I believe you find life such a problem because you  think  there  are
the  good  people  and the bad people. You're wrong, of course. There
are, always and only, the bad people, but some of them are  on  oppo-
site sides.                      - Terry Pratchett, _Guards! Guards!_
Tom
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
How can you tell when sour cream goes bad?
Tom
=====================================================================
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: +49-8142-66989-0 Fax: +49-8142-66989-80  Email: office at denx.de
=====================================================================
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
Randal said it would be tough to do in sed. He didn't say  he  didn't
understand  sed.  Randal  understands sed quite well. Which is why he
uses Perl. :-)         - Larry Wall in <[email protected]>
Tom
=====================================================================
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: +49-8142-66989-0 Fax: +49-8142-66989-80  Email: office at denx.de
=====================================================================