ppc work

ppc work

[Sascha Hauer]

The following switches ppc from the old ft_build oftree implementation
to the new libfdt based implementation. Also some pcm030 fixups included
which broke during the switch to resources.

Sascha Hauer (5):
      ppc pcm030: Fix device resource sizes
      pcm030: update defconfig
      ppc pcm030: Move memory registration to mem_initcall
      ppc: switch to libfdt based oftree implementation
      remove old ft_build support

 arch/ppc/boards/pcm030/pcm030.c   |   31 +-
 arch/ppc/configs/pcm030_defconfig |   27 ++-
 arch/ppc/lib/ppclinux.c           |  231 +--------------
 arch/ppc/mach-mpc5xxx/cpu.c       |   42 ++--
 commands/bootm.c                  |    5 +
 common/Kconfig                    |    4 -
 common/Makefile                   |    1 -
 common/ft_build.c                 |  620 -------------------------------------
 include/boot.h                    |    2 +-
 include/ft_build.h                |   69 ----
 10 files changed, 67 insertions(+), 965 deletions(-)
 delete mode 100644 common/ft_build.c
 delete mode 100644 include/ft_build.h

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[PATCH 1/5] ppc pcm030: Fix device resource sizes

[Sascha Hauer]

The device resources are much smaller, the resource mechanism
revealed this because of overlapping devices.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
 arch/ppc/boards/pcm030/pcm030.c |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/ppc/boards/pcm030/pcm030.c b/arch/ppc/boards/pcm030/pcm030.c
index 61fb116..4abf6cb 100644
--- a/arch/ppc/boards/pcm030/pcm030.c
+++ b/arch/ppc/boards/pcm030/pcm030.c
@@ -59,7 +59,7 @@ static int devices_init (void)
 	sdramsize = mpc5200_get_sdram_size(0) + mpc5200_get_sdram_size(1);
 	barebox_add_memory_bank("ram0", 0x0, sdramsize);
 
-	add_generic_device("fec_mpc5xxx", -1, NULL, MPC5XXX_FEC, 0,
+	add_generic_device("fec_mpc5xxx", -1, NULL, MPC5XXX_FEC, 0x200,
 			   IORESOURCE_MEM, &fec_info);
 
 	ret = stat("/dev/nor0", &s);
@@ -76,9 +76,9 @@ device_initcall(devices_init);
 
 static int console_init(void)
 {
-	add_generic_device("mpc5xxx_serial", -1, NULL, MPC5XXX_PSC3, 4096,
+	add_generic_device("mpc5xxx_serial", -1, NULL, MPC5XXX_PSC3, 0x200,
 			   IORESOURCE_MEM, NULL);
-	add_generic_device("mpc5xxx_serial", -1, NULL, MPC5XXX_PSC6, 4096,
+	add_generic_device("mpc5xxx_serial", -1, NULL, MPC5XXX_PSC6, 0x200,
 			   IORESOURCE_MEM, NULL);
 	return 0;
 }
-- 
1.7.7.3


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[PATCH 2/5] pcm030: update defconfig

[Sascha Hauer]

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
 arch/ppc/configs/pcm030_defconfig |   27 +++++++++++++++++++++------
 1 files changed, 21 insertions(+), 6 deletions(-)

diff --git a/arch/ppc/configs/pcm030_defconfig b/arch/ppc/configs/pcm030_defconfig
index 6016076..5de1c75 100644
--- a/arch/ppc/configs/pcm030_defconfig
+++ b/arch/ppc/configs/pcm030_defconfig
@@ -1,22 +1,37 @@
+CONFIG_TEXT_BASE=0x3e00000
+CONFIG_MALLOC_SIZE=0x1000000
 CONFIG_LONGHELP=y
 CONFIG_GLOB=y
+CONFIG_HUSH_FANCY_PROMPT=y
 CONFIG_CMDLINE_EDITING=y
 CONFIG_AUTO_COMPLETE=y
-CONFIG_OF_FLAT_TREE=y
 CONFIG_PARTITION=y
-# CONFIG_DEFAULT_ENVIRONMENT is not set
+CONFIG_DEFAULT_ENVIRONMENT_GENERIC=y
 CONFIG_CMD_EDIT=y
 CONFIG_CMD_SLEEP=y
+CONFIG_CMD_SAVEENV=y
+CONFIG_CMD_LOADENV=y
+CONFIG_CMD_EXPORT=y
+CONFIG_CMD_READLINE=y
+CONFIG_CMD_TIME=y
+CONFIG_CMD_ECHO_E=y
 CONFIG_CMD_MEMINFO=y
+CONFIG_CMD_IOMEM=y
 CONFIG_CMD_FLASH=y
-CONFIG_CMD_BOOTM_ZLIB=y
-CONFIG_CMD_BOOTM_BZLIB=y
+CONFIG_CMD_BOOTM_SHOW_TYPE=y
+CONFIG_CMD_UIMAGE=y
 CONFIG_CMD_RESET=y
 CONFIG_CMD_GO=y
+CONFIG_CMD_OFTREE=y
+CONFIG_CMD_TIMEOUT=y
+CONFIG_CMD_PARTITION=y
+CONFIG_CMD_MAGICVAR=y
+CONFIG_CMD_MAGICVAR_HELP=y
+CONFIG_CMD_UNCOMPRESS=y
 CONFIG_NET=y
 CONFIG_NET_DHCP=y
 CONFIG_NET_PING=y
 CONFIG_NET_TFTP=y
-CONFIG_DRIVER_NET_MPC5200=y
 CONFIG_DRIVER_CFI=y
-CONFIG_FS_CRAMFS=y
+CONFIG_CFI_BUFFER_WRITE=y
+CONFIG_ZLIB=y
-- 
1.7.7.3


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[PATCH 3/5] ppc pcm030: Move memory registration to mem_initcall

[Sascha Hauer]

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
 arch/ppc/boards/pcm030/pcm030.c |   16 ++++++++++++----
 1 files changed, 12 insertions(+), 4 deletions(-)

diff --git a/arch/ppc/boards/pcm030/pcm030.c b/arch/ppc/boards/pcm030/pcm030.c
index 4abf6cb..9c6ccb7 100644
--- a/arch/ppc/boards/pcm030/pcm030.c
+++ b/arch/ppc/boards/pcm030/pcm030.c
@@ -45,7 +45,6 @@ static struct mpc5xxx_fec_platform_data fec_info = {
 
 static int devices_init (void)
 {
-	unsigned long sdramsize;
 	struct stat s;
 	int ret;
 
@@ -56,9 +55,6 @@ static int devices_init (void)
 	mpc5200_setup_cs(MPC5200_BOOTCS, 0xfe000000, SZ_32M, 0x0008fd00);
 	add_cfi_flash_device(-1, 0xfe000000, 32 * 1024 * 1024, 0);
 
-	sdramsize = mpc5200_get_sdram_size(0) + mpc5200_get_sdram_size(1);
-	barebox_add_memory_bank("ram0", 0x0, sdramsize);
-
 	add_generic_device("fec_mpc5xxx", -1, NULL, MPC5XXX_FEC, 0x200,
 			   IORESOURCE_MEM, &fec_info);
 
@@ -85,6 +81,18 @@ static int console_init(void)
 
 console_initcall(console_init);
 
+static int mem_init(void)
+{
+	unsigned long sdramsize;
+
+	sdramsize = mpc5200_get_sdram_size(0) + mpc5200_get_sdram_size(1);
+
+	barebox_add_memory_bank("ram0", 0x0, sdramsize);
+
+	return 0;
+}
+mem_initcall(mem_init);
+
 #include "mt46v32m16-75.h"
 
 static void sdram_start (int hi_addr)
-- 
1.7.7.3


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[PATCH 4/5] ppc: switch to libfdt based oftree implementation

[Sascha Hauer]

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
 arch/ppc/lib/ppclinux.c     |  231 +-----------------------------------------
 arch/ppc/mach-mpc5xxx/cpu.c |   42 ++++-----
 commands/bootm.c            |    5 +
 include/boot.h              |    2 +-
 4 files changed, 31 insertions(+), 249 deletions(-)

diff --git a/arch/ppc/lib/ppclinux.c b/arch/ppc/lib/ppclinux.c
index 471b303..f7d3950 100644
--- a/arch/ppc/lib/ppclinux.c
+++ b/arch/ppc/lib/ppclinux.c
@@ -16,231 +16,15 @@
 #endif
 extern bd_t *bd;
 
-static int do_bootm_linux(struct image_data *idata)
+static int do_bootm_linux(struct image_data *data)
 {
-	ulong	sp;
-	ulong	initrd_end = 0;
-	ulong	cmd_start, cmd_end;
-	ulong	initrd_high;
-	int	initrd_copy_to_ram = 1;
-	char    *cmdline;
-	const char *c;
-	bd_t	*kbd;
-	void	(*kernel)(bd_t *, ulong, ulong, ulong, ulong);
-#ifdef CONFIG_OF_FLAT_TREE
-	char	*of_flat_tree = NULL;
-#endif
-	image_header_t *os_header = &idata->os->header;
-	image_header_t *initrd_header = NULL;
-	void    *os_data = NULL;
-	void    *initrd_data = NULL;
-	void    *of_data = NULL;
-	struct image_handle *oftree_handle;
-	unsigned long os_len, initrd_len;
-
-	if (idata->initrd)
-		initrd_header = &idata->initrd->header;
-
-	printf("entering %s: os_header: %p initrd_header: %p oftree: %s\n",
-			__FUNCTION__, os_header, initrd_header, idata->oftree);
-
-	if (image_get_type(os_header) == IH_TYPE_MULTI) {
-		unsigned long *data = (unsigned long *)(idata->os->data);
-		unsigned long len1 = 0, len2 = 0;
-
-		if (!*data) {
-			printf("multifile image with 0 entries???\n");
-			return -1;
-		}
-		os_len = ntohl(*data);	/* first one is the kernel */
-		data++;
-
-		if (*data) {
-			len1 = ntohl(*data);	/* could be initrd or oftree */
-			data++;
-		}
-
-		if (*data) {
-			len2 = ntohl(*data);	/* could be oftree */
-			data++;
-		}
-
-		while (*data)		/* skip all remaining files */
-			data++;
-
-		data++;			/* skip terminating zero */
-
-		os_data = (void *)ntohl(data);
-
-		if (len2) {
-			initrd_data = (void *)
-				((unsigned long)data + ((os_len + 3) & ~3));
-			initrd_len  = len1;
-			of_data     = (void *)
-				((unsigned long)initrd_data + ((initrd_len + 3) & ~3));
-		} else if (len1) {
-			/* We could check here if this is a multifile image
-			 * with only a kernel and an oftree. Original barebox
-			 * did not do this, so leave it out for now.
-			 */
-			initrd_data = (void *)((unsigned long)data + ((os_len + 3) & ~3));
-			initrd_len  = len1;
-		}
-	} else {
-		os_data = idata->os->data;
-		printf("set os_data to %p\n", os_data);
-	}
-
-	if (idata->initrd)
-		initrd_data = idata->initrd->data;
+	void	(*kernel)(void *, void *, unsigned long,
+			unsigned long, unsigned long);
+	struct image_header *os_header = &data->os->header;
 
-#ifdef CONFIG_OF_FLAT_TREE
-	if (idata->oftree) {
-		/* The oftree can be given either as an barebox image or as a
-		 * binary blob. First try to read it as an image.
-		 */
-		oftree_handle = map_image(idata->oftree, 1);
-		if (oftree_handle) {
-			of_data = oftree_handle->data;
-		} else {
-			of_data = read_file(idata->oftree, 0);
-			if (!of_data) {
-				printf("could not read %s: %s\n", idata->oftree, errno_str());
-				return -1;
-			}
-		}
-		/* FIXME: check if this is really an oftree */
-	}
-#endif
-	printf("loading kernel.\n");
-
-	if ((c = getenv ("initrd_high")) != NULL) {
-		/* a value of "no" or a similar string will act like 0,
-		 * turning the "load high" feature off. This is intentional.
-		 */
-		initrd_high = simple_strtoul(c, NULL, 16);
-		if (initrd_high == ~0)
-			initrd_copy_to_ram = 0;
-	} else {	/* not set, no restrictions to load high */
-		initrd_high = ~0;
-	}
-
-#ifdef CONFIG_LOGBUFFER
-	kbd=gd->bd;
-	/* Prevent initrd from overwriting logbuffer */
-	if (initrd_high < (kbd->bi_memsize-LOGBUFF_LEN-LOGBUFF_OVERHEAD))
-		initrd_high = kbd->bi_memsize-LOGBUFF_LEN-LOGBUFF_OVERHEAD;
-	debug ("## Logbuffer at 0x%08lX ", kbd->bi_memsize-LOGBUFF_LEN);
-#endif
+	kernel = (void *)image_get_ep(os_header);
 
 	/*
-	 * Booting a (Linux) kernel image
-	 *
-	 * Allocate space for command line and board info - the
-	 * address should be as high as possible within the reach of
-	 * the kernel (see CFG_BOOTMAPSZ settings), but in unused
-	 * memory, which means far enough below the current stack
-	 * pointer.
-	 */
-
-	asm( "mr %0,1": "=r"(sp) : );
-
-	debug ("## Current stack ends at 0x%08lX ", sp);
-
-	sp -= 2048;		/* just to be sure */
-	if (sp > CFG_BOOTMAPSZ)
-		sp = CFG_BOOTMAPSZ;
-	sp &= ~0xF;
-
-	debug ("=> set upper limit to 0x%08lX\n", sp);
-
-	cmdline = (char *)((sp - CONFIG_CBSIZE) & ~0xF);
-	kbd = (bd_t *)(((ulong)cmdline - sizeof(bd_t)) & ~0xF);
-
-	printf("cmdline: %p kbd: %p\n", cmdline, kbd);
-
-	if ((c = getenv("bootargs")) == NULL)
-		c = "";
-
-	strcpy (cmdline, c);
-
-	cmd_start    = (ulong)cmdline;
-	cmd_end      = cmd_start + strlen(cmdline);
-
-	init_board_data(kbd);
-
-#ifdef	DEBUG
-	printf ("## cmdline at 0x%08lX ... 0x%08lX\n", cmd_start, cmd_end);
-
-//	do_bdinfo (NULL, 0, 0, NULL);
-#endif
-
-	if ((c = getenv ("clocks_in_mhz")) != NULL) {
-		/* convert all clock information to MHz */
-		kbd->bi_intfreq /= 1000000L;
-		kbd->bi_busfreq /= 1000000L;
-#if defined(CONFIG_MPC8220)
-		kbd->bi_inpfreq /= 1000000L;
-		kbd->bi_pcifreq /= 1000000L;
-		kbd->bi_pevfreq /= 1000000L;
-		kbd->bi_flbfreq /= 1000000L;
-		kbd->bi_vcofreq /= 1000000L;
-#endif
-#if defined(CONFIG_CPM2)
-		kbd->bi_cpmfreq /= 1000000L;
-		kbd->bi_brgfreq /= 1000000L;
-		kbd->bi_sccfreq /= 1000000L;
-		kbd->bi_vco     /= 1000000L;
-#endif
-#if defined(CONFIG_MPC5xxx)
-		kbd->bi_ipbfreq /= 1000000L;
-		kbd->bi_pcifreq /= 1000000L;
-#endif /* CONFIG_MPC5xxx */
-	}
-
-	kernel = (void (*)(bd_t *, ulong, ulong, ulong, ulong))image_get_ep(os_header); /* FIXME */
-
-#if defined(CFG_INIT_RAM_LOCK) && !defined(CONFIG_E500)
-	unlock_ram_in_cache();
-#endif
-
-#ifdef CONFIG_OF_FLAT_TREE
-	/* move of_flat_tree if needed */
-	if (of_data) {
-		ulong of_start, of_len;
-		of_len = ((struct boot_param_header *)of_data)->totalsize;
-		/* provide extra 8k pad */
-		if (initrd_data)
-			of_start = (unsigned long)initrd_data - of_len - 8192;
-		else
-			of_start  = (ulong)kbd - of_len - 8192;
-		of_start &= ~(4096 - 1);	/* align on page */
-		debug ("## device tree at 0x%p ... 0x%p (len=%ld=0x%lX)\n",
-			of_data, of_data + of_len - 1, of_len, of_len);
-
-		of_flat_tree = (char *)of_start;
-		printf ("   Loading Device Tree to %08lx, end %08lx ... ",
-			of_start, of_start + of_len - 1);
-		memmove ((void *)of_start, (void *)of_data, of_len);
-	}
-#endif
-
-	/*
-	 * Linux Kernel Parameters (passing board info data):
-	 *   r3: ptr to board info data
-	 *   r4: initrd_start or 0 if no initrd
-	 *   r5: initrd_end - unused if r4 is 0
-	 *   r6: Start of command line string
-	 *   r7: End   of command line string
-	 */
-#ifdef CONFIG_OF_FLAT_TREE
-	if (!of_flat_tree)	/* no device tree; boot old style */
-#endif
-		(*kernel) (kbd, (ulong)initrd_data, initrd_end, cmd_start, cmd_end);
-		/* does not return */
-
-#ifdef CONFIG_OF_FLAT_TREE
-	/*
 	 * Linux Kernel Parameters (passing device tree):
 	 *   r3: ptr to OF flat tree, followed by the board info data
 	 *   r4: physical pointer to the kernel itself
@@ -248,11 +32,8 @@ static int do_bootm_linux(struct image_data *idata)
 	 *   r6: NULL
 	 *   r7: NULL
 	 */
-	ft_setup(of_flat_tree, kbd, (long)initrd_data, initrd_end);
-	ft_cpu_setup(of_flat_tree, kbd);
+	kernel(data->oftree, kernel, 0, 0, 0);
 
-	(*kernel) ((bd_t *)of_flat_tree, (ulong)kernel, 0, 0, 0);
-#endif
 	reset_cpu(0);
 
 	/* not reached */
diff --git a/arch/ppc/mach-mpc5xxx/cpu.c b/arch/ppc/mach-mpc5xxx/cpu.c
index d695b9b..62ddb1f 100644
--- a/arch/ppc/mach-mpc5xxx/cpu.c
+++ b/arch/ppc/mach-mpc5xxx/cpu.c
@@ -34,12 +34,9 @@
 #include <init.h>
 #include <types.h>
 #include <errno.h>
+#include <of.h>
 #include <mach/clocks.h>
 
-#if defined(CONFIG_OF_FLAT_TREE)
-#include <ft_build.h>
-#endif
-
 int checkcpu (void)
 {
 	ulong clock = get_cpu_clock();
@@ -83,27 +80,26 @@ void __noreturn reset_cpu (unsigned long addr)
 
 /* ------------------------------------------------------------------------- */
 
-#ifdef CONFIG_OF_FLAT_TREE
-void
-ft_cpu_setup(void *blob, bd_t *bd)
+#ifdef CONFIG_OFTREE
+static int of_mpc5200_fixup(struct fdt_header *fdt)
+{
+	char *cpu_path = "/cpus/PowerPC,5200@0";
+	int div = in_8((void*)CFG_MBAR + 0x204) & 0x0020 ? 8 : 4;
+
+	do_fixup_by_path_u32(fdt, cpu_path, "timebase-frequency", get_timebase_clock(), 1);
+	do_fixup_by_path_u32(fdt, cpu_path, "bus-frequency", get_bus_clock(), 1);
+	do_fixup_by_path_u32(fdt, cpu_path, "clock-frequency", get_cpu_clock(), 1);
+	do_fixup_by_path_u32(fdt, "/soc5200@f0000000", "bus-frequency", get_ipb_clock(), 1);
+	do_fixup_by_path_u32(fdt, "/soc5200@f0000000", "system-frequency",
+				get_bus_clock() * div, 1);
+	return 0;
+}
+
+static int of_register_mpc5200_fixup(void)
 {
-	u32 *p;
-	int len;
-
-	/* Core XLB bus frequency */
-	p = ft_get_prop(blob, "/cpus/" OF_CPU "/bus-frequency", &len);
-	if (p != NULL)
-		*p = cpu_to_be32(get_bus_clock());
-
-	/* SOC peripherals use the IPB bus frequency */
-	p = ft_get_prop(blob, "/" OF_SOC "/bus-frequency", &len);
-	if (p != NULL)
-		*p = cpu_to_be32(get_ipb_clock());
-
-	p = ft_get_prop(blob, "/" OF_SOC "/ethernet@3000/mac-address", &len);
-	if (p != NULL)
-		memcpy(p, bd->bi_enetaddr, 6);
+	return of_register_fixup(of_mpc5200_fixup);
 }
+late_initcall(of_register_mpc5200_fixup);
 #endif
 
 int cpu_init_board_data(bd_t *bd)
diff --git a/commands/bootm.c b/commands/bootm.c
index f97a842..265ad46 100644
--- a/commands/bootm.c
+++ b/commands/bootm.c
@@ -38,6 +38,7 @@
 #include <fs.h>
 #include <errno.h>
 #include <boot.h>
+#include <of.h>
 #include <rtc.h>
 #include <init.h>
 #include <magicvar.h>
@@ -144,6 +145,10 @@ static int do_bootm(struct command *cmdtp, int argc, char *argv[])
 		}
 	}
 
+#ifdef CONFIG_OFTREE
+	data.oftree = of_get_fixed_tree();
+#endif
+
 	if (optind == argc) {
 		ret = COMMAND_ERROR_USAGE;
 		goto err_out;
diff --git a/include/boot.h b/include/boot.h
index b67e034..297b944 100644
--- a/include/boot.h
+++ b/include/boot.h
@@ -7,7 +7,7 @@
 struct image_data {
 	struct image_handle *os;
 	struct image_handle *initrd;
-	const char *oftree;
+	void *oftree;
 	int verify;
 	unsigned long initrd_address;
 	unsigned long initrd_size;
-- 
1.7.7.3


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[PATCH 5/5] remove old ft_build support

[Sascha Hauer]

This is unused now as its only user (ppc) is switched to
libfdt based oftree support"

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
 arch/ppc/boards/pcm030/pcm030.c |    9 -
 common/Kconfig                  |    4 -
 common/Makefile                 |    1 -
 common/ft_build.c               |  620 ---------------------------------------
 include/ft_build.h              |   69 -----
 5 files changed, 0 insertions(+), 703 deletions(-)
 delete mode 100644 common/ft_build.c
 delete mode 100644 include/ft_build.h

diff --git a/arch/ppc/boards/pcm030/pcm030.c b/arch/ppc/boards/pcm030/pcm030.c
index 9c6ccb7..80f1cbe 100644
--- a/arch/ppc/boards/pcm030/pcm030.c
+++ b/arch/ppc/boards/pcm030/pcm030.c
@@ -191,12 +191,3 @@ void initdram (int board_type)
 		}
 	}
 }
-
-#if defined(CONFIG_OF_FLAT_TREE) && defined(CONFIG_OF_BOARD_SETUP)
-void
-ft_board_setup(void *blob, bd_t *bd)
-{
-	ft_cpu_setup(blob, bd);
-}
-#endif
-
diff --git a/common/Kconfig b/common/Kconfig
index 27464d1..1c9e398 100644
--- a/common/Kconfig
+++ b/common/Kconfig
@@ -398,10 +398,6 @@ config CONSOLE_ACTIVATE_ALL
 	  Enabling this options activates all consoles on startup, so
 	  you will get output and a prompt on all consoles simultaneously.
 
-config OF_FLAT_TREE
-	bool
-	prompt "Open Firmware flat device tree support"
-
 config PARTITION
 	bool
 	prompt "Enable Partitions"
diff --git a/common/Makefile b/common/Makefile
index 9bce479..237c6b0 100644
--- a/common/Makefile
+++ b/common/Makefile
@@ -1,7 +1,6 @@
 obj-$(CONFIG_SHELL_HUSH)	+= hush.o
 obj-$(CONFIG_SHELL_SIMPLE)	+= parser.o
 obj-$(CONFIG_GREGORIAN_CALENDER) += date.o
-obj-$(CONFIG_OF_FLAT_TREE)	+= ft_build.o
 obj-$(CONFIG_KALLSYMS)		+= kallsyms.o
 obj-$(CONFIG_ENV_HANDLING)	+= environment.o
 obj-$(CONFIG_AUTO_COMPLETE)	+= complete.o
diff --git a/common/ft_build.c b/common/ft_build.c
deleted file mode 100644
index 9042f13..0000000
--- a/common/ft_build.c
+++ /dev/null
@@ -1,620 +0,0 @@
-/*
- * OF flat tree builder
- * Written by: Pantelis Antoniou <pantelis.antoniou@gmail.com>
- * Updated by: Matthew McClintock <msm@freescale.com>
- *
- * 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 <boot.h>
-#include <init.h>
-#include <malloc.h>
-#include <environment.h>
-#include <asm/byteorder.h>
-#include <stdio.h>
-
-#include <errno.h>
-#include <stddef.h>
-
-#include <ft_build.h>
-
-#undef DEBUG
-
-/* align addr on a size boundary - adjust address up if needed -- Cort */
-#define _ALIGN(addr,size)       (((addr)+(size)-1)&(~((size)-1)))
-#ifndef CONFIG_OF_BOOT_CPU
-#define CONFIG_OF_BOOT_CPU 0
-#endif
-#define SIZE_OF_RSVMAP_ENTRY (2*sizeof(u64))
-
-static void ft_put_word(struct ft_cxt *cxt, u32 v)
-{
-	memmove(cxt->p + sizeof(u32), cxt->p, cxt->p_end - cxt->p);
-
-	*(u32 *) cxt->p = cpu_to_be32(v);
-	cxt->p += sizeof(u32);
-	cxt->p_end += sizeof(u32);
-}
-
-static inline void ft_put_bin(struct ft_cxt *cxt, const void *data, int sz)
-{
-	int aligned_size = ((u8 *)_ALIGN((unsigned long)cxt->p + sz,
-					sizeof(u32))) - cxt->p;
-
-	memmove(cxt->p + aligned_size, cxt->p, cxt->p_end - cxt->p);
-
-	/* make sure the last bytes are zeroed */
-	memset(cxt->p + aligned_size - (aligned_size % sizeof(u32)), 0,
-			(aligned_size % sizeof(u32)));
-
-	memcpy(cxt->p, data, sz);
-
-	cxt->p += aligned_size;
-	cxt->p_end += aligned_size;
-}
-
-void ft_begin_node(struct ft_cxt *cxt, const char *name)
-{
-	ft_put_word(cxt, OF_DT_BEGIN_NODE);
-	ft_put_bin(cxt, name, strlen(name) + 1);
-}
-
-void ft_end_node(struct ft_cxt *cxt)
-{
-	ft_put_word(cxt, OF_DT_END_NODE);
-}
-
-void ft_nop(struct ft_cxt *cxt)
-{
-	ft_put_word(cxt, OF_DT_NOP);
-}
-
-static int lookup_string(struct ft_cxt *cxt, const char *name)
-{
-	u8 *p;
-
-	p = cxt->p;
-	while (p < cxt->p_end) {
-		if (strcmp((char *)p, name) == 0)
-			return p - cxt->p;
-		p += strlen((char *)p) + 1;
-	}
-
-	return -1;
-}
-
-void ft_prop(struct ft_cxt *cxt, const char *name, const void *data, int sz)
-{
-	int off = 0;
-
-	off = lookup_string(cxt, name);
-	if (off == -1) {
-		memcpy(cxt->p_end, name, strlen(name) + 1);
-		off = cxt->p_end - cxt->p;
-		cxt->p_end += strlen(name) + 1;
-	}
-
-	/* now put offset from beginning of *STRUCTURE* */
-	/* will be fixed up at the end */
-	ft_put_word(cxt, OF_DT_PROP);
-	ft_put_word(cxt, sz);
-	ft_put_word(cxt, off);
-	ft_put_bin(cxt, data, sz);
-}
-
-void ft_prop_str(struct ft_cxt *cxt, const char *name, const char *str)
-{
-	ft_prop(cxt, name, str, strlen(str) + 1);
-}
-
-void ft_prop_int(struct ft_cxt *cxt, const char *name, int val)
-{
-	u32 v = cpu_to_be32((u32) val);
-
-	ft_prop(cxt, name, &v, sizeof(u32));
-}
-
-/* pick up and start working on a tree in place */
-void ft_init_cxt(struct ft_cxt *cxt, void *blob)
-{
-	struct boot_param_header *bph = blob;
-
-	memset(cxt, 0, sizeof(*cxt));
-
-	cxt->bph = bph;
-	bph->boot_cpuid_phys = CONFIG_OF_BOOT_CPU;
-
-	/* find beginning and end of reserve map table (zeros in last entry) */
-	cxt->p_rsvmap = (u8 *)bph + bph->off_mem_rsvmap;
-	while ( ((uint64_t *)cxt->p_rsvmap)[0] != 0 &&
-		     ((uint64_t *)cxt->p_rsvmap)[1] != 0 ) {
-	cxt->p_rsvmap += SIZE_OF_RSVMAP_ENTRY;
-	}
-
-	cxt->p_start = (u8 *)bph + bph->off_dt_struct;
-	cxt->p_end = (u8 *)bph + bph->totalsize;
-	cxt->p = (u8 *)bph + bph->off_dt_strings;
-}
-
-/* add a reserver physical area to the rsvmap */
-void ft_add_rsvmap(struct ft_cxt *cxt, u64 physstart, u64 physend)
-{
-	memmove(cxt->p_rsvmap + SIZE_OF_RSVMAP_ENTRY, cxt->p_rsvmap,
-				 cxt->p_end - cxt->p_rsvmap);
-
-	((u64 *)cxt->p_rsvmap)[0] = cpu_to_be64(physstart);
-	((u64 *)cxt->p_rsvmap)[1] = cpu_to_be64(physend);
-	((u64 *)cxt->p_rsvmap)[2] = 0;
-	((u64 *)cxt->p_rsvmap)[3] = 0;
-
-	cxt->p_rsvmap += SIZE_OF_RSVMAP_ENTRY;
-	cxt->p_start += SIZE_OF_RSVMAP_ENTRY;
-	cxt->p += SIZE_OF_RSVMAP_ENTRY;
-	cxt->p_end += SIZE_OF_RSVMAP_ENTRY;
-}
-
-void ft_end_tree(struct ft_cxt *cxt)
-{
-	ft_put_word(cxt, OF_DT_END);
-}
-
-/* update the boot param header with correct values */
-void ft_finalize_tree(struct ft_cxt *cxt) {
-	struct boot_param_header *bph = cxt->bph;
-
-	bph->totalsize = cxt->p_end - (u8 *)bph;
-	bph->off_dt_struct = cxt->p_start - (u8 *)bph;
-	bph->off_dt_strings = cxt->p - (u8 *)bph;
-	bph->dt_strings_size = cxt->p_end - cxt->p;
-}
-
-static inline int isprint(int c)
-{
-	return c >= 0x20 && c <= 0x7e;
-}
-
-static int is_printable_string(const void *data, int len)
-{
-	const char *s = data;
-	const char *ss;
-
-	/* zero length is not */
-	if (len == 0)
-		return 0;
-
-	/* must terminate with zero */
-	if (s[len - 1] != '\0')
-		return 0;
-
-	ss = s;
-	while (*s && isprint(*s))
-		s++;
-
-	/* not zero, or not done yet */
-	if (*s != '\0' || (s + 1 - ss) < len)
-		return 0;
-
-	return 1;
-}
-
-static void print_data(const void *data, int len)
-{
-	int i;
-	const u8 *s;
-
-	/* no data, don't print */
-	if (len == 0)
-		return;
-
-	if (is_printable_string(data, len)) {
-		puts(" = \"");
-		puts(data);
-		puts("\"");
-		return;
-	}
-
-	switch (len) {
-	case 1:		/* byte */
-		printf(" = <%02x>", (*(u8 *) data) & 0xff);
-		break;
-	case 2:		/* half-word */
-		printf(" = <%04x>", be16_to_cpu(*(u16 *) data) & 0xffff);
-		break;
-	case 4:		/* word */
-		printf(" = <%x>", be32_to_cpu(*(u32 *) data) & 0xffffffffU);
-		break;
-	case 8:		/* double-word */
-		printf(" = <%qx>", be64_to_cpu(*(uint64_t *) data));
-		break;
-	default:		/* anything else... hexdump */
-		printf(" = [");
-		for (i = 0, s = data; i < len; i++)
-			printf("%02x%s", s[i], i < len - 1 ? " " : "");
-		printf("]");
-
-		break;
-	}
-}
-
-void ft_dump_blob(const void *bphp)
-{
-	const struct boot_param_header *bph = bphp;
-	const uint64_t *p_rsvmap = (const uint64_t *)
-		((const char *)bph + be32_to_cpu(bph->off_mem_rsvmap));
-	const u32 *p_struct = (const u32 *)
-		((const char *)bph + be32_to_cpu(bph->off_dt_struct));
-	const u32 *p_strings = (const u32 *)
-		((const char *)bph + be32_to_cpu(bph->off_dt_strings));
-	u32 tag;
-	const u32 *p;
-	const char *s, *t;
-	int depth, sz, shift;
-	int i;
-	uint64_t addr, size;
-
-	if (be32_to_cpu(bph->magic) != OF_DT_HEADER) {
-		/* not valid tree */
-		return;
-	}
-
-	depth = 0;
-	shift = 4;
-
-	for (i = 0;; i++) {
-		addr = be64_to_cpu(p_rsvmap[i * 2]);
-		size = be64_to_cpu(p_rsvmap[i * 2 + 1]);
-		if (addr == 0 && size == 0)
-			break;
-
-		printf("/memreserve/ %qx %qx;\n", addr, size);
-	}
-
-	p = p_struct;
-	while ((tag = be32_to_cpu(*p++)) != OF_DT_END) {
-
-		/* printf("tag: 0x%08x (%d)\n", tag, p - p_struct); */
-
-		if (tag == OF_DT_BEGIN_NODE) {
-			s = (const char *)p;
-			p = (u32 *) _ALIGN((unsigned long)p + strlen(s) + 1, 4);
-
-			printf("%*s%s {\n", depth * shift, "", s);
-
-			depth++;
-			continue;
-		}
-
-		if (tag == OF_DT_END_NODE) {
-			depth--;
-
-			printf("%*s};\n", depth * shift, "");
-			continue;
-		}
-
-		if (tag == OF_DT_NOP) {
-			printf("%*s[NOP]\n", depth * shift, "");
-			continue;
-		}
-
-		if (tag != OF_DT_PROP) {
-			fprintf(stderr, "%*s ** Unknown tag 0x%08x at 0x%p\n",
-				depth * shift, "", tag, --p);
-			break;
-		}
-		sz = be32_to_cpu(*p++);
-		s = (const char *)p_strings + be32_to_cpu(*p++);
-		t = (const char *)p;
-		p = (const u32 *)_ALIGN((unsigned long)p + sz, 4);
-		printf("%*s%s", depth * shift, "", s);
-		print_data(t, sz);
-		printf(";\n");
-	}
-}
-
-void ft_backtrack_node(struct ft_cxt *cxt)
-{
-	int i = 4;
-
-	while (be32_to_cpu(*(u32 *) (cxt->p - i)) != OF_DT_END_NODE)
-		i += 4;
-
-	memmove (cxt->p - i, cxt->p, cxt->p_end - cxt->p);
-
-	cxt->p_end -= i;
-	cxt->p -= i;
-}
-
-void *ft_get_prop(void *bphp, const char *propname, int *szp)
-{
-	struct boot_param_header *bph = bphp;
-	uint32_t *p_struct =
-	    (uint32_t *) ((char *)bph + be32_to_cpu(bph->off_dt_struct));
-	uint32_t *p_strings =
-	    (uint32_t *) ((char *)bph + be32_to_cpu(bph->off_dt_strings));
-	uint32_t version = be32_to_cpu(bph->version);
-	uint32_t tag;
-	uint32_t *p;
-	char *s, *t;
-	char *ss;
-	int sz;
-	static char path[256], prop[256];
-
-	path[0] = '\0';
-
-	p = p_struct;
-	while ((tag = be32_to_cpu(*p++)) != OF_DT_END) {
-
-		if (tag == OF_DT_BEGIN_NODE) {
-			s = (char *)p;
-			p = (uint32_t *) _ALIGN((unsigned long)p + strlen(s) +
-						1, 4);
-			strcat(path, s);
-			strcat(path, "/");
-			continue;
-		}
-
-		if (tag == OF_DT_END_NODE) {
-			path[strlen(path) - 1] = '\0';
-			ss = strrchr(path, '/');
-			if (ss != NULL)
-				ss[1] = '\0';
-			continue;
-		}
-
-		if (tag == OF_DT_NOP)
-			continue;
-
-		if (tag != OF_DT_PROP)
-			break;
-
-		sz = be32_to_cpu(*p++);
-		s = (char *)p_strings + be32_to_cpu(*p++);
-		if (version < 0x10 && sz >= 8)
-			p = (uint32_t *) _ALIGN((unsigned long)p, 8);
-		t = (char *)p;
-		p = (uint32_t *) _ALIGN((unsigned long)p + sz, 4);
-
-		strcpy(prop, path);
-		strcat(prop, s);
-
-		if (strcmp(prop, propname) == 0) {
-			*szp = sz;
-			return t;
-		}
-	}
-
-	return NULL;
-}
-
-/********************************************************************/
-
-/* Function that returns a character from the environment */
-extern uchar(*env_get_char) (int);
-
-#define BDM(x)	{	.name = #x, .offset = offsetof(bd_t, bi_ ##x ) }
-
-#ifdef CONFIG_OF_HAS_BD_T
-static const struct {
-	const char *name;
-	int offset;
-} bd_map[] = {
-	BDM(memstart),
-	BDM(memsize),
-	BDM(flashstart),
-	BDM(flashsize),
-	BDM(flashoffset),
-	BDM(sramstart),
-	BDM(sramsize),
-#if defined(CONFIG_5xx) || defined(CONFIG_8xx) || defined(CONFIG_8260) \
-	|| defined(CONFIG_E500)
-	BDM(immr_base),
-#endif
-#if defined(CONFIG_MPC5xxx)
-	BDM(mbar_base),
-#endif
-#if defined(CONFIG_MPC83XX)
-	BDM(immrbar),
-#endif
-#if defined(CONFIG_MPC8220)
-	BDM(mbar_base),
-	BDM(inpfreq),
-	BDM(pcifreq),
-	BDM(pevfreq),
-	BDM(flbfreq),
-	BDM(vcofreq),
-#endif
-	BDM(bootflags),
-	BDM(ip_addr),
-	BDM(intfreq),
-	BDM(busfreq),
-#ifdef CONFIG_CPM2
-	BDM(cpmfreq),
-	BDM(brgfreq),
-	BDM(sccfreq),
-	BDM(vco),
-#endif
-#if defined(CONFIG_MPC5xxx)
-	BDM(ipbfreq),
-	BDM(pcifreq),
-#endif
-	BDM(baudrate),
-};
-#endif
-
-void ft_setup(void *blob, bd_t * bd, ulong initrd_start, ulong initrd_end)
-{
-	u32 *p;
-	int len;
-	struct ft_cxt cxt;
-	ulong clock;
-#if defined(CONFIG_OF_HAS_BAREBOX_ENV)
-	int k, nxt;
-#endif
-#if defined(CONFIG_OF_HAS_BD_T)
-	u8 *end;
-#endif
-#if defined(CONFIG_OF_HAS_BAREBOX_ENV) || defined(CONFIG_OF_HAS_BD_T)
-	int i;
-	static char tmpenv[256];
-#endif
-
-	/* disable OF tree; booting old kernel */
-	if (getenv("disable_of") != NULL) {
-		memcpy(blob, bd, sizeof(*bd));
-		return;
-	}
-
-#ifdef DEBUG
-	printf ("recieved oftree\n");
-	ft_dump_blob(blob);
-#endif
-
-	ft_init_cxt(&cxt, blob);
-
-	if (initrd_start && initrd_end)
-		ft_add_rsvmap(&cxt, initrd_start, initrd_end - initrd_start + 1);
-
-	/* back into root */
-	ft_backtrack_node(&cxt);
-
-#ifdef CONFIG_OF_HAS_BAREBOX_ENV
-	ft_begin_node(&cxt, "barebox-env");
-
-	for (i = 0; env_get_char(i) != '\0'; i = nxt + 1) {
-		char *s, *lval, *rval;
-
-		for (nxt = i; env_get_char(nxt) != '\0'; ++nxt) ;
-		s = tmpenv;
-		for (k = i; k < nxt && s < &tmpenv[sizeof(tmpenv) - 1]; ++k)
-			*s++ = env_get_char(k);
-		*s++ = '\0';
-		lval = tmpenv;
-		s = strchr(tmpenv, '=');
-		if (s != NULL) {
-			*s++ = '\0';
-			rval = s;
-		} else
-			continue;
-		ft_prop_str(&cxt, lval, rval);
-	}
-
-	ft_end_node(&cxt);
-#endif
-
-	ft_begin_node(&cxt, "chosen");
-	ft_prop_str(&cxt, "name", "chosen");
-
-	ft_prop_str(&cxt, "bootargs", getenv("bootargs"));
-	ft_prop_int(&cxt, "linux,platform", 0x600);	/* what is this? */
-	if (initrd_start && initrd_end) {
-		ft_prop_int(&cxt, "linux,initrd-start", initrd_start);
-		ft_prop_int(&cxt, "linux,initrd-end", initrd_end);
-	}
-#ifdef OF_STDOUT_PATH
-	ft_prop_str(&cxt, "linux,stdout-path", OF_STDOUT_PATH);
-#endif
-
-	ft_end_node(&cxt);
-
-	ft_end_node(&cxt);	/* end root */
-
-	ft_end_tree(&cxt);
-	ft_finalize_tree(&cxt);
-
-#ifdef CONFIG_OF_HAS_BD_T
-	/* paste the bd_t at the end of the flat tree */
-	end = (char *)blob +
-	    be32_to_cpu(((struct boot_param_header *)blob)->totalsize);
-	memcpy(end, bd, sizeof(*bd));
-#endif
-
-#ifdef CONFIG_PPC
-
-#ifdef CONFIG_OF_HAS_BD_T
-	for (i = 0; i < sizeof(bd_map)/sizeof(bd_map[0]); i++) {
-		uint32_t v;
-
-		sprintf(tmpenv, "/bd_t/%s", bd_map[i].name);
-		v = *(uint32_t *)((char *)bd + bd_map[i].offset);
-
-		p = ft_get_prop(blob, tmpenv, &len);
-		if (p != NULL)
-			*p = cpu_to_be32(v);
-	}
-
-	p = ft_get_prop(blob, "/bd_t/enetaddr", &len);
-	if (p != NULL)
-		memcpy(p, bd->bi_enetaddr, 6);
-
-	p = ft_get_prop(blob, "/bd_t/ethspeed", &len);
-	if (p != NULL)
-		*p = cpu_to_be32((uint32_t) bd->bi_ethspeed);
-#endif
-
-	clock = bd->bi_intfreq;
-	p = ft_get_prop(blob, "/cpus/" OF_CPU "/clock-frequency", &len);
-	if (p != NULL)
-		*p = cpu_to_be32(clock);
-
-#ifdef OF_TBCLK
-	clock = OF_TBCLK;
-	p = ft_get_prop(blob, "/cpus/" OF_CPU "/timebase-frequency", &len);
-	if (p != NULL)
-		*p = cpu_to_be32(clock);
-#endif
-#endif				/* __powerpc__ */
-
-#ifdef CONFIG_OF_BOARD_SETUP
-	ft_board_setup(blob, bd);
-#endif
-
-	/* in case the size changed in the platform code */
-	ft_finalize_tree(&cxt);
-
-#ifdef DEBUG
-	printf("final OF-tree\n");
-	ft_dump_blob(blob);
-#endif
-}
-
-#if 0
-static int oftree_handler_cmdline_parse(struct image_data *data, int opt,
-		char *optarg)
-{
-	switch(opt) {
-	case 'o':
-		printf("using oftree %s\n", optarg);
-		data->oftree = optarg;
-		return 0;
-	default:
-		return 1;
-	}
-}
-
-static struct image_handler of_handler = {
-	.cmdline_options = "o:",
-	.cmdline_parse = oftree_handler_cmdline_parse,
-	.help_string = " -o <oftree>    use oftree",
-};
-
-static int oftree_register_image_handler(void)
-{
-	return register_image_handler(&of_handler);
-}
-
-late_initcall(oftree_register_image_handler);
-#endif
diff --git a/include/ft_build.h b/include/ft_build.h
deleted file mode 100644
index 1fb6b4d..0000000
--- a/include/ft_build.h
+++ /dev/null
@@ -1,69 +0,0 @@
-/*
- * OF Flat tree builder
- *
- */
-
-#ifndef FT_BUILD_H
-#define FT_BUILD_H
-
-#include <linux/types.h>
-#include <asm/barebox.h>
-
-/* Definitions used by the flattened device tree */
-#define OF_DT_HEADER		0xd00dfeed	/* marker */
-#define OF_DT_BEGIN_NODE	0x1	/* Start of node, full name */
-#define OF_DT_END_NODE		0x2	/* End node */
-#define OF_DT_PROP		0x3	/* Property: name off, size,
-					 * content */
-#define OF_DT_NOP		0x4	/* nop */
-#define OF_DT_END		0x9
-
-#define OF_DT_VERSION		0x10
-
-struct boot_param_header {
-	u32 magic;		/* magic word OF_DT_HEADER */
-	u32 totalsize;		/* total size of DT block */
-	u32 off_dt_struct;	/* offset to structure */
-	u32 off_dt_strings;	/* offset to strings */
-	u32 off_mem_rsvmap;	/* offset to memory reserve map */
-	u32 version;		/* format version */
-	u32 last_comp_version;	/* last compatible version */
-	/* version 2 fields below */
-	u32 boot_cpuid_phys;	/* Physical CPU id we're booting on */
-	/* version 3 fields below */
-	u32 dt_strings_size;	/* size of the DT strings block */
-};
-
-struct ft_cxt {
-	struct boot_param_header *bph;
-	u8 *p_rsvmap;
-	u8 *p_start;  /* pointer to beginning of dt_struct */
-	u8 *p_end; /* pointer to end of dt_strings */
-	u8 *p; /* pointer to end of dt_struct and beginning of dt_strings */
-};
-
-void ft_begin_node(struct ft_cxt *cxt, const char *name);
-void ft_init_cxt(struct ft_cxt *cxt, void *blob);
-void ft_end_node(struct ft_cxt *cxt);
-
-void ft_end_tree(struct ft_cxt *cxt);
-void ft_finalize_tree(struct ft_cxt *cxt);
-
-void ft_nop(struct ft_cxt *cxt);
-void ft_prop(struct ft_cxt *cxt, const char *name, const void *data, int sz);
-void ft_prop_str(struct ft_cxt *cxt, const char *name, const char *str);
-void ft_prop_int(struct ft_cxt *cxt, const char *name, int val);
-void ft_begin(struct ft_cxt *cxt, void *blob, int max_size);
-void ft_add_rsvmap(struct ft_cxt *cxt, u64 physaddr, u64 size);
-
-void ft_setup(void *blob, bd_t * bd, ulong initrd_start, ulong initrd_end);
-
-void ft_dump_blob(const void *bphp);
-void ft_merge_blob(struct ft_cxt *cxt, void *blob);
-void *ft_get_prop(void *bphp, const char *propname, int *szp);
-
-void ft_board_setup(void *blob, bd_t *bd);
-void ft_cpu_setup(void *blob, bd_t *bd);
-void ft_pci_setup(void *blob, bd_t *bd);
-
-#endif
-- 
1.7.7.3


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Re: [PATCH 4/5] ppc: switch to libfdt based oftree implementation

[Jean-Christophe PLAGNIOL-VILLARD]

Hi,

	here you remove the multi image support

	so so

	standard way on ppc

Best Regards,
J.

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Re: [PATCH 4/5] ppc: switch to libfdt based oftree implementation

[Sascha Hauer]

On Wed, Dec 14, 2011 at 04:10:33PM +0100, Jean-Christophe PLAGNIOL-VILLARD wrote:
> Hi,
> 
> 	here you remove the multi image support
> 
> 	so so
> 
> 	standard way on ppc

Don't worry, it will come back very soon, shinier than ever. I noticed
that ppc is broken anyway atm. The switch to the kernel zlib implementation
made that zlib now checks for NULL pointers in the destination buffer.
On ppc the kernel is normally extracted to NULL though and zlib refuses
to work.

Sascha

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