Fixed MTP to work with TWRP

arch/arm/boot/compressed/Makefile

@@ -0,0 +1,205 @@
+#
+# linux/arch/arm/boot/compressed/Makefile
+#
+# create a compressed vmlinuz image from the original vmlinux
+#
+
+OBJS		=
+
+# Ensure that MMCIF loader code appears early in the image
+# to minimise that number of bocks that have to be read in
+# order to load it.
+ifeq ($(CONFIG_ZBOOT_ROM_MMCIF),y)
+OBJS		+= mmcif-sh7372.o
+endif
+
+# Ensure that SDHI loader code appears early in the image
+# to minimise that number of bocks that have to be read in
+# order to load it.
+ifeq ($(CONFIG_ZBOOT_ROM_SH_MOBILE_SDHI),y)
+OBJS		+= sdhi-shmobile.o
+OBJS		+= sdhi-sh7372.o
+endif
+
+AFLAGS_head.o += -DTEXT_OFFSET=$(TEXT_OFFSET)
+HEAD	= head.o
+OBJS	+= misc.o decompress.o
+ifeq ($(CONFIG_DEBUG_UNCOMPRESS),y)
+OBJS	+= debug.o
+endif
+FONTC	= $(srctree)/lib/fonts/font_acorn_8x8.c
+
+# string library code (-Os is enforced to keep it much smaller)
+OBJS		+= string.o
+CFLAGS_string.o	:= -Os
+
+ifeq ($(CONFIG_ARM_VIRT_EXT),y)
+OBJS		+= hyp-stub.o
+endif
+
+GCOV_PROFILE		:= n
+
+#
+# Architecture dependencies
+#
+ifeq ($(CONFIG_ARCH_ACORN),y)
+OBJS		+= ll_char_wr.o font.o
+endif
+
+ifeq ($(CONFIG_ARCH_SA1100),y)
+OBJS		+= head-sa1100.o
+endif
+
+ifeq ($(CONFIG_CPU_XSCALE),y)
+OBJS		+= head-xscale.o
+endif
+
+ifeq ($(CONFIG_PXA_SHARPSL_DETECT_MACH_ID),y)
+OBJS		+= head-sharpsl.o
+endif
+
+ifeq ($(CONFIG_CPU_ENDIAN_BE32),y)
+ifeq ($(CONFIG_CPU_CP15),y)
+OBJS		+= big-endian.o
+else
+# The endian should be set by h/w design.
+endif
+endif
+
+ifeq ($(CONFIG_ARCH_SHMOBILE_LEGACY),y)
+OBJS		+= head-shmobile.o
+endif
+
+#
+# We now have a PIC decompressor implementation.  Decompressors running
+# from RAM should not define ZTEXTADDR.  Decompressors running directly
+# from ROM or Flash must define ZTEXTADDR (preferably via the config)
+# FIXME: Previous assignment to ztextaddr-y is lost here. See SHARK
+ifeq ($(CONFIG_ZBOOT_ROM),y)
+ZTEXTADDR	:= $(CONFIG_ZBOOT_ROM_TEXT)
+ZBSSADDR	:= $(CONFIG_ZBOOT_ROM_BSS)
+else
+ZTEXTADDR	:= 0
+ZBSSADDR	:= ALIGN(8)
+endif
+
+CPPFLAGS_vmlinux.lds := -DTEXT_START="$(ZTEXTADDR)" -DBSS_START="$(ZBSSADDR)"
+
+suffix_$(CONFIG_KERNEL_GZIP) = gzip
+suffix_$(CONFIG_KERNEL_LZO)  = lzo
+suffix_$(CONFIG_KERNEL_LZMA) = lzma
+suffix_$(CONFIG_KERNEL_XZ)   = xzkern
+suffix_$(CONFIG_KERNEL_LZ4)  = lz4
+
+# Borrowed libfdt files for the ATAG compatibility mode
+
+libfdt		:= fdt_rw.c fdt_ro.c fdt_wip.c fdt.c
+libfdt_hdrs	:= fdt.h libfdt.h libfdt_internal.h
+
+libfdt_objs	:= $(addsuffix .o, $(basename $(libfdt)))
+
+$(addprefix $(obj)/,$(libfdt) $(libfdt_hdrs)): $(obj)/%: $(srctree)/scripts/dtc/libfdt/%
+	$(call cmd,shipped)
+
+$(addprefix $(obj)/,$(libfdt_objs) atags_to_fdt.o): \
+	$(addprefix $(obj)/,$(libfdt_hdrs))
+
+ifeq ($(CONFIG_ARM_ATAG_DTB_COMPAT),y)
+OBJS	+= $(libfdt_objs) atags_to_fdt.o
+endif
+
+targets       := vmlinux vmlinux.lds \
+		 piggy.$(suffix_y) piggy.$(suffix_y).o \
+		 lib1funcs.o lib1funcs.S ashldi3.o ashldi3.S bswapsdi2.o \
+		 bswapsdi2.S font.o font.c head.o misc.o $(OBJS)
+
+# Make sure files are removed during clean
+extra-y       += piggy.gzip piggy.lzo piggy.lzma piggy.xzkern piggy.lz4 \
+		 lib1funcs.S ashldi3.S bswapsdi2.S $(libfdt) $(libfdt_hdrs) \
+		 hyp-stub.S
+
+ifeq ($(CONFIG_FUNCTION_TRACER),y)
+ORIG_CFLAGS := $(KBUILD_CFLAGS)
+KBUILD_CFLAGS = $(subst -pg, , $(ORIG_CFLAGS))
+endif
+
+ccflags-y := -fpic -mno-single-pic-base -fno-builtin -I$(obj)
+asflags-y := -DZIMAGE
+
+# Supply kernel BSS size to the decompressor via a linker symbol.
+KBSS_SZ = $(shell $(CROSS_COMPILE)size $(obj)/../../../../vmlinux | \
+		awk 'END{print $$3}')
+LDFLAGS_vmlinux = --defsym _kernel_bss_size=$(KBSS_SZ)
+# Supply ZRELADDR to the decompressor via a linker symbol.
+ifneq ($(CONFIG_AUTO_ZRELADDR),y)
+LDFLAGS_vmlinux += --defsym zreladdr=$(ZRELADDR)
+endif
+ifeq ($(CONFIG_CPU_ENDIAN_BE8),y)
+LDFLAGS_vmlinux += --be8
+endif
+# ?
+LDFLAGS_vmlinux += -p
+# Report unresolved symbol references
+LDFLAGS_vmlinux += --no-undefined
+# Delete all temporary local symbols
+LDFLAGS_vmlinux += -X
+# Next argument is a linker script
+LDFLAGS_vmlinux += -T
+
+# For __aeabi_uidivmod
+lib1funcs = $(obj)/lib1funcs.o
+
+$(obj)/lib1funcs.S: $(srctree)/arch/$(SRCARCH)/lib/lib1funcs.S
+	$(call cmd,shipped)
+
+# For __aeabi_llsl
+ashldi3 = $(obj)/ashldi3.o
+
+$(obj)/ashldi3.S: $(srctree)/arch/$(SRCARCH)/lib/ashldi3.S
+	$(call cmd,shipped)
+
+# For __bswapsi2, __bswapdi2
+bswapsdi2 = $(obj)/bswapsdi2.o
+
+$(obj)/bswapsdi2.S: $(srctree)/arch/$(SRCARCH)/lib/bswapsdi2.S
+	$(call cmd,shipped)
+
+# We need to prevent any GOTOFF relocs being used with references
+# to symbols in the .bss section since we cannot relocate them
+# independently from the rest at run time.  This can be achieved by
+# ensuring that no private .bss symbols exist, as global symbols
+# always have a GOT entry which is what we need.
+# The .data section is already discarded by the linker script so no need
+# to bother about it here.
+check_for_bad_syms = \
+bad_syms=$$($(CROSS_COMPILE)nm $@ | sed -n 's/^.\{8\} [bc] \(.*\)/\1/p') && \
+[ -z "$$bad_syms" ] || \
+  ( echo "following symbols must have non local/private scope:" >&2; \
+    echo "$$bad_syms" >&2; rm -f $@; false )
+
+check_for_multiple_zreladdr = \
+if [ $(words $(ZRELADDR)) -gt 1 -a "$(CONFIG_AUTO_ZRELADDR)" = "" ]; then \
+	echo 'multiple zreladdrs: $(ZRELADDR)'; \
+	echo 'This needs CONFIG_AUTO_ZRELADDR to be set'; \
+	false; \
+fi
+
+$(obj)/vmlinux: $(obj)/vmlinux.lds $(obj)/$(HEAD) $(obj)/piggy.$(suffix_y).o \
+		$(addprefix $(obj)/, $(OBJS)) $(lib1funcs) $(ashldi3) \
+		$(bswapsdi2) FORCE
+	@$(check_for_multiple_zreladdr)
+	$(call if_changed,ld)
+	@$(check_for_bad_syms)
+
+$(obj)/piggy.$(suffix_y): $(obj)/../Image FORCE
+	$(call if_changed,$(suffix_y))
+
+$(obj)/piggy.$(suffix_y).o:  $(obj)/piggy.$(suffix_y) FORCE
+
+CFLAGS_font.o := -Dstatic=
+
+$(obj)/font.c: $(FONTC)
+	$(call cmd,shipped)
+
+$(obj)/hyp-stub.S: $(srctree)/arch/$(SRCARCH)/kernel/hyp-stub.S
+	$(call cmd,shipped)

arch/arm/boot/compressed/atags_to_fdt.c

@@ -0,0 +1,191 @@
+#include <asm/setup.h>
+#include <libfdt.h>
+
+#if defined(CONFIG_ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND)
+#define do_extend_cmdline 1
+#else
+#define do_extend_cmdline 0
+#endif
+
+#define NR_BANKS 16
+
+static int node_offset(void *fdt, const char *node_path)
+{
+	int offset = fdt_path_offset(fdt, node_path);
+	if (offset == -FDT_ERR_NOTFOUND)
+		offset = fdt_add_subnode(fdt, 0, node_path);
+	return offset;
+}
+
+static int setprop(void *fdt, const char *node_path, const char *property,
+		   uint32_t *val_array, int size)
+{
+	int offset = node_offset(fdt, node_path);
+	if (offset < 0)
+		return offset;
+	return fdt_setprop(fdt, offset, property, val_array, size);
+}
+
+static int setprop_string(void *fdt, const char *node_path,
+			  const char *property, const char *string)
+{
+	int offset = node_offset(fdt, node_path);
+	if (offset < 0)
+		return offset;
+	return fdt_setprop_string(fdt, offset, property, string);
+}
+
+static int setprop_cell(void *fdt, const char *node_path,
+			const char *property, uint32_t val)
+{
+	int offset = node_offset(fdt, node_path);
+	if (offset < 0)
+		return offset;
+	return fdt_setprop_cell(fdt, offset, property, val);
+}
+
+static const void *getprop(const void *fdt, const char *node_path,
+			   const char *property, int *len)
+{
+	int offset = fdt_path_offset(fdt, node_path);
+
+	if (offset == -FDT_ERR_NOTFOUND)
+		return NULL;
+
+	return fdt_getprop(fdt, offset, property, len);
+}
+
+static uint32_t get_cell_size(const void *fdt)
+{
+	int len;
+	uint32_t cell_size = 1;
+	const uint32_t *size_len =  getprop(fdt, "/", "#size-cells", &len);
+
+	if (size_len)
+		cell_size = fdt32_to_cpu(*size_len);
+	return cell_size;
+}
+
+static void merge_fdt_bootargs(void *fdt, const char *fdt_cmdline)
+{
+	char cmdline[COMMAND_LINE_SIZE];
+	const char *fdt_bootargs;
+	char *ptr = cmdline;
+	int len = 0;
+
+	/* copy the fdt command line into the buffer */
+	fdt_bootargs = getprop(fdt, "/chosen", "bootargs", &len);
+	if (fdt_bootargs)
+		if (len < COMMAND_LINE_SIZE) {
+			memcpy(ptr, fdt_bootargs, len);
+			/* len is the length of the string
+			 * including the NULL terminator */
+			ptr += len - 1;
+		}
+
+	/* and append the ATAG_CMDLINE */
+	if (fdt_cmdline) {
+		len = strlen(fdt_cmdline);
+		if (ptr - cmdline + len + 2 < COMMAND_LINE_SIZE) {
+			*ptr++ = ' ';
+			memcpy(ptr, fdt_cmdline, len);
+			ptr += len;
+		}
+	}
+	*ptr = '\0';
+
+	setprop_string(fdt, "/chosen", "bootargs", cmdline);
+}
+
+/*
+ * Convert and fold provided ATAGs into the provided FDT.
+ *
+ * REturn values:
+ *    = 0 -> pretend success
+ *    = 1 -> bad ATAG (may retry with another possible ATAG pointer)
+ *    < 0 -> error from libfdt
+ */
+int atags_to_fdt(void *atag_list, void *fdt, int total_space)
+{
+	struct tag *atag = atag_list;
+	/* In the case of 64 bits memory size, need to reserve 2 cells for
+	 * address and size for each bank */
+	uint32_t mem_reg_property[2 * 2 * NR_BANKS];
+	int memcount = 0;
+	int ret, memsize;
+
+	/* make sure we've got an aligned pointer */
+	if ((u32)atag_list & 0x3)
+		return 1;
+
+	/* if we get a DTB here we're done already */
+	if (*(u32 *)atag_list == fdt32_to_cpu(FDT_MAGIC))
+	       return 0;
+
+	/* validate the ATAG */
+	if (atag->hdr.tag != ATAG_CORE ||
+	    (atag->hdr.size != tag_size(tag_core) &&
+	     atag->hdr.size != 2))
+		return 1;
+
+	/* let's give it all the room it could need */
+	ret = fdt_open_into(fdt, fdt, total_space);
+	if (ret < 0)
+		return ret;
+
+	for_each_tag(atag, atag_list) {
+		if (atag->hdr.tag == ATAG_CMDLINE) {
+			/* Append the ATAGS command line to the device tree
+			 * command line.
+			 * NB: This means that if the same parameter is set in
+			 * the device tree and in the tags, the one from the
+			 * tags will be chosen.
+			 */
+			if (do_extend_cmdline)
+				merge_fdt_bootargs(fdt,
+						   atag->u.cmdline.cmdline);
+			else
+				setprop_string(fdt, "/chosen", "bootargs",
+					       atag->u.cmdline.cmdline);
+		} else if (atag->hdr.tag == ATAG_MEM) {
+			if (memcount >= sizeof(mem_reg_property)/4)
+				continue;
+			if (!atag->u.mem.size)
+				continue;
+			memsize = get_cell_size(fdt);
+
+			if (memsize == 2) {
+				/* if memsize is 2, that means that
+				 * each data needs 2 cells of 32 bits,
+				 * so the data are 64 bits */
+				uint64_t *mem_reg_prop64 =
+					(uint64_t *)mem_reg_property;
+				mem_reg_prop64[memcount++] =
+					cpu_to_fdt64(atag->u.mem.start);
+				mem_reg_prop64[memcount++] =
+					cpu_to_fdt64(atag->u.mem.size);
+			} else {
+				mem_reg_property[memcount++] =
+					cpu_to_fdt32(atag->u.mem.start);
+				mem_reg_property[memcount++] =
+					cpu_to_fdt32(atag->u.mem.size);
+			}
+
+		} else if (atag->hdr.tag == ATAG_INITRD2) {
+			uint32_t initrd_start, initrd_size;
+			initrd_start = atag->u.initrd.start;
+			initrd_size = atag->u.initrd.size;
+			setprop_cell(fdt, "/chosen", "linux,initrd-start",
+					initrd_start);
+			setprop_cell(fdt, "/chosen", "linux,initrd-end",
+					initrd_start + initrd_size);
+		}
+	}
+
+	if (memcount) {
+		setprop(fdt, "/memory", "reg", mem_reg_property,
+			4 * memcount * memsize);
+	}
+
+	return fdt_pack(fdt);
+}

arch/arm/boot/compressed/big-endian.S

@@ -0,0 +1,13 @@
+/*
+ *  linux/arch/arm/boot/compressed/big-endian.S
+ *
+ *  Switch CPU into big endian mode.
+ *  Author: Nicolas Pitre
+ */
+
+	.section ".start", #alloc, #execinstr
+
+	mrc	p15, 0, r0, c1, c0, 0	@ read control reg
+	orr	r0, r0, #(1 << 7)	@ enable big endian mode
+	mcr	p15, 0, r0, c1, c0, 0	@ write control reg
+

arch/arm/boot/compressed/debug.S

@@ -0,0 +1,40 @@
+#include <linux/linkage.h>
+#include <asm/assembler.h>
+
+#ifndef CONFIG_DEBUG_SEMIHOSTING
+
+#include CONFIG_DEBUG_LL_INCLUDE
+
+ENTRY(putc)
+	addruart r1, r2, r3
+	waituart r3, r1
+	senduart r0, r1
+	busyuart r3, r1
+	mov	 pc, lr
+ENDPROC(putc)
+
+#else
+
+ENTRY(putc)
+	adr	r1, 1f
+	ldmia	r1, {r2, r3}
+	add	r2, r2, r1
+	ldr	r1, [r2, r3]
+	strb	r0, [r1]
+	mov	r0, #0x03		@ SYS_WRITEC
+   ARM(	svc	#0x123456	)
+ THUMB(	svc	#0xab		)
+	mov	pc, lr
+	.align	2
+1:	.word	_GLOBAL_OFFSET_TABLE_ - .
+	.word	semi_writec_buf(GOT)
+ENDPROC(putc)
+
+	.bss
+	.global	semi_writec_buf
+	.type   semi_writec_buf, %object
+semi_writec_buf:
+	.space	4
+	.size	semi_writec_buf, 4
+
+#endif

arch/arm/boot/compressed/decompress.c

@@ -0,0 +1,61 @@
+#define _LINUX_STRING_H_
+
+#include <linux/compiler.h>	/* for inline */
+#include <linux/types.h>	/* for size_t */
+#include <linux/stddef.h>	/* for NULL */
+#include <linux/linkage.h>
+#include <asm/string.h>
+
+extern unsigned long free_mem_ptr;
+extern unsigned long free_mem_end_ptr;
+extern void error(char *);
+
+#define STATIC static
+#define STATIC_RW_DATA	/* non-static please */
+
+/* Diagnostic functions */
+#ifdef DEBUG
+#  define Assert(cond,msg) {if(!(cond)) error(msg);}
+#  define Trace(x) fprintf x
+#  define Tracev(x) {if (verbose) fprintf x ;}
+#  define Tracevv(x) {if (verbose>1) fprintf x ;}
+#  define Tracec(c,x) {if (verbose && (c)) fprintf x ;}
+#  define Tracecv(c,x) {if (verbose>1 && (c)) fprintf x ;}
+#else
+#  define Assert(cond,msg)
+#  define Trace(x)
+#  define Tracev(x)
+#  define Tracevv(x)
+#  define Tracec(c,x)
+#  define Tracecv(c,x)
+#endif
+
+/* Not needed, but used in some headers pulled in by decompressors */
+extern char * strstr(const char * s1, const char *s2);
+
+#ifdef CONFIG_KERNEL_GZIP
+#include "../../../../lib/decompress_inflate.c"
+#endif
+
+#ifdef CONFIG_KERNEL_LZO
+#include "../../../../lib/decompress_unlzo.c"
+#endif
+
+#ifdef CONFIG_KERNEL_LZMA
+#include "../../../../lib/decompress_unlzma.c"
+#endif
+
+#ifdef CONFIG_KERNEL_XZ
+#define memmove memmove
+#define memcpy memcpy
+#include "../../../../lib/decompress_unxz.c"
+#endif
+
+#ifdef CONFIG_KERNEL_LZ4
+#include "../../../../lib/decompress_unlz4.c"
+#endif
+
+int do_decompress(u8 *input, int len, u8 *output, void (*error)(char *x))
+{
+	return decompress(input, len, NULL, NULL, output, NULL, error);
+}

arch/arm/boot/compressed/head-sa1100.S

@@ -0,0 +1,48 @@
+/* 
+ * linux/arch/arm/boot/compressed/head-sa1100.S
+ * 
+ * Copyright (C) 1999 Nicolas Pitre <nico@fluxnic.net>
+ * 
+ * SA1100 specific tweaks.  This is merged into head.S by the linker.
+ *
+ */
+
+#include <linux/linkage.h>
+#include <asm/mach-types.h>
+
+		.section        ".start", "ax"
+		.arch	armv4
+
+__SA1100_start:
+
+		@ Preserve r8/r7 i.e. kernel entry values
+#ifdef CONFIG_SA1100_COLLIE
+		mov	r7, #MACH_TYPE_COLLIE
+#endif
+#ifdef CONFIG_SA1100_SIMPAD
+		@ UNTIL we've something like an open bootldr
+		mov	r7, #MACH_TYPE_SIMPAD	@should be 87
+#endif
+		mrc	p15, 0, r0, c1, c0, 0	@ read control reg
+		ands	r0, r0, #0x0d
+		beq	99f
+
+		@ Data cache might be active.
+		@ Be sure to flush kernel binary out of the cache,
+		@ whatever state it is, before it is turned off.
+		@ This is done by fetching through currently executed
+		@ memory to be sure we hit the same cache.
+		bic	r2, pc, #0x1f
+		add	r3, r2, #0x4000		@ 16 kb is quite enough...
+1:		ldr	r0, [r2], #32
+		teq	r2, r3
+		bne	1b
+		mcr	p15, 0, r0, c7, c10, 4	@ drain WB
+		mcr	p15, 0, r0, c7, c7, 0	@ flush I & D caches
+
+		@ disabling MMU and caches
+		mrc	p15, 0, r0, c1, c0, 0	@ read control reg
+		bic	r0, r0, #0x0d		@ clear WB, DC, MMU
+		bic	r0, r0, #0x1000		@ clear Icache
+		mcr	p15, 0, r0, c1, c0, 0
+99:

arch/arm/boot/compressed/head-sharpsl.S

@@ -0,0 +1,150 @@
+/*
+ * linux/arch/arm/boot/compressed/head-sharpsl.S
+ *
+ * Copyright (C) 2004-2005 Richard Purdie <rpurdie@rpsys.net>
+ *
+ * Sharp's bootloader doesn't pass any kind of machine ID
+ * so we have to figure out the machine for ourselves...
+ *
+ * Support for Poodle, Corgi (SL-C700), Shepherd (SL-C750)
+ * Husky (SL-C760), Tosa (SL-C6000), Spitz (SL-C3000),
+ * Akita (SL-C1000) and Borzoi (SL-C3100).
+ *
+ */
+
+#include <linux/linkage.h>
+#include <asm/mach-types.h>
+
+#ifndef CONFIG_PXA_SHARPSL
+#error What am I doing here...
+#endif
+
+		.section        ".start", "ax"
+
+__SharpSL_start:
+
+/* Check for TC6393 - if found we have a Tosa */
+	ldr	r7, .TOSAID
+	mov	r1, #0x10000000		@ Base address of TC6393 chip
+	mov 	r6, #0x03
+	ldrh	r3, [r1, #8]		@ Load TC6393XB Revison: This is 0x0003
+	cmp	r6, r3
+	beq	.SHARPEND		@ Success -> tosa
+
+/* Check for pxa270 - if found, branch */
+	mrc p15, 0, r4, c0, c0		@ Get Processor ID
+	and	r4, r4, #0xffffff00
+	ldr	r3, .PXA270ID
+	cmp	r4, r3
+	beq	.PXA270
+
+/* Check for w100 - if not found we have a Poodle */
+	ldr	r1, .W100ADDR		@ Base address of w100 chip + regs offset
+
+	mov r6, #0x31			@ Load Magic Init value
+	str	r6, [r1, #0x280]	@ to SCRATCH_UMSK
+	mov r5, #0x3000
+.W100LOOP:
+	subs r5, r5, #1
+	bne .W100LOOP
+	mov r6, #0x30			@ Load 2nd Magic Init value
+	str	r6, [r1, #0x280]	@ to SCRATCH_UMSK
+
+	ldr	r6, [r1, #0]		@ Load Chip ID
+	ldr	r3, .W100ID
+	ldr	r7, .POODLEID
+	cmp	r6, r3
+	bne	.SHARPEND			@ We have no w100 - Poodle
+
+/* Check for pxa250 - if found we have a Corgi */
+	ldr	r7, .CORGIID
+	ldr	r3, .PXA255ID
+	cmp	r4, r3
+	blo	.SHARPEND			@ We have a PXA250 - Corgi
+
+/* Check for 64MiB flash - if found we have a Shepherd */
+	bl	get_flash_ids
+	ldr	r7, .SHEPHERDID
+	cmp	r3, #0x76			@ 64MiB flash
+	beq	.SHARPEND			@ We have Shepherd
+
+/* Must be a Husky */
+	ldr	r7, .HUSKYID		@ Must be Husky
+	b .SHARPEND
+
+.PXA270:
+/* Check for 16MiB flash - if found we have Spitz */
+	bl	get_flash_ids
+	ldr	r7, .SPITZID
+	cmp	r3, #0x73			@ 16MiB flash
+	beq	.SHARPEND			@ We have Spitz
+
+/* Check for a second SCOOP chip - if found we have Borzoi */
+	ldr	r1, .SCOOP2ADDR
+	ldr	r7, .BORZOIID
+	mov 	r6, #0x0140
+	strh	r6, [r1]
+	ldrh	r6, [r1]
+	cmp	r6, #0x0140
+	beq	.SHARPEND			@ We have Borzoi
+
+/* Must be Akita */
+	ldr	r7, .AKITAID
+	b	.SHARPEND			@ We have Borzoi
+
+.PXA255ID:
+	.word	0x69052d00		@ PXA255 Processor ID
+.PXA270ID:
+	.word	0x69054100		@ PXA270 Processor ID
+.W100ID:
+	.word	0x57411002		@ w100 Chip ID
+.W100ADDR:
+	.word 	0x08010000		@ w100 Chip ID Reg Address
+.SCOOP2ADDR:
+	.word	0x08800040
+.POODLEID:
+	.word	MACH_TYPE_POODLE
+.CORGIID:
+	.word	MACH_TYPE_CORGI
+.SHEPHERDID:
+	.word	MACH_TYPE_SHEPHERD
+.HUSKYID:
+	.word	MACH_TYPE_HUSKY
+.TOSAID:
+	.word	MACH_TYPE_TOSA
+.SPITZID:
+	.word	MACH_TYPE_SPITZ
+.AKITAID:
+	.word	MACH_TYPE_AKITA
+.BORZOIID:
+	.word	MACH_TYPE_BORZOI
+
+/*
+ * Return: r2 - NAND Manufacturer ID
+ *         r3 - NAND Chip ID
+ * Corrupts: r1
+ */
+get_flash_ids:
+	mov	r1, #0x0c000000		@ Base address of NAND chip
+	ldrb	r3, [r1, #24]		@ Load FLASHCTL
+	bic	r3, r3, #0x11		@ SET NCE
+	orr	r3, r3, #0x0a		@ SET CLR + FLWP
+	strb	r3, [r1, #24]		@ Save to FLASHCTL
+	mov 	r2, #0x90		@ Command "readid"
+	strb	r2, [r1, #20]		@ Save to FLASHIO
+	bic	r3, r3, #2		@ CLR CLE
+	orr	r3, r3, #4		@ SET ALE
+	strb	r3, [r1, #24]		@ Save to FLASHCTL
+	mov	r2, #0			@ Address 0x00
+	strb	r2, [r1, #20]		@ Save to FLASHIO
+	bic	r3, r3, #4		@ CLR ALE
+	strb	r3, [r1, #24]		@ Save to FLASHCTL
+.fids1:
+	ldrb	r3, [r1, #24]		@ Load FLASHCTL
+	tst	r3, #32			@ Is chip ready?
+	beq	.fids1
+	ldrb	r2, [r1, #20]		@ NAND Manufacturer ID
+	ldrb	r3, [r1, #20]		@ NAND Chip ID
+	mov	pc, lr
+
+.SHARPEND:

arch/arm/boot/compressed/head-shmobile.S

@@ -0,0 +1,101 @@
+/*
+ * The head-file for SH-Mobile ARM platforms
+ *
+ * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+ * Simon Horman <horms@verge.net.au>
+ *
+ * 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; version 2 of the License.
+ *
+ * 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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#ifdef CONFIG_ZBOOT_ROM
+
+	.section	".start", "ax"
+
+	/* load board-specific initialization code */
+#include <mach/zboot.h>
+
+#if defined(CONFIG_ZBOOT_ROM_MMCIF) || defined(CONFIG_ZBOOT_ROM_SH_MOBILE_SDHI)
+	/* Load image from MMC/SD */
+	adr	sp, __tmp_stack + 256
+	ldr	r0, __image_start
+	ldr	r1, __image_end
+	subs	r1, r1, r0
+	ldr	r0, __load_base
+	bl	mmc_loader
+
+	/* Jump to loaded code */
+	ldr	r0, __loaded
+	ldr	r1, __image_start
+	sub	r0, r0, r1
+	ldr	r1, __load_base
+	add	pc, r0, r1
+
+__image_start:
+	.long	_start
+__image_end:
+	.long	_got_end
+__load_base:
+	.long	MEMORY_START + 0x02000000 @ Load at 32Mb into SDRAM
+__loaded:
+	.long	__continue
+	.align
+__tmp_stack:
+	.space	256
+__continue:
+#endif /* CONFIG_ZBOOT_ROM_MMC || CONFIG_ZBOOT_ROM_SH_MOBILE_SDHI */
+
+	adr	r0, dtb_info
+	ldmia	r0, {r1, r3, r4, r5, r7}
+
+	sub	r0, r0, r1		@ calculate the delta offset
+	add	r5, r5, r0		@ _edata
+
+	ldr	lr, [r5, #0]		@ check if valid DTB is present
+	cmp	lr, r3
+	bne	0f
+
+	add	r9, r7, #31		@ rounded up to a multiple
+	bic	r9, r9, #31		@ ... of 32 bytes
+
+	add	r6, r9, r5		@ copy from _edata
+	add	r9, r9, r4		@ to MEMORY_START
+
+1:	ldmdb	r6!, {r0 - r3, r10 - r12, lr}
+	cmp	r6, r5
+	stmdb	r9!, {r0 - r3, r10 - r12, lr}
+	bhi	1b
+
+	/* Success: Zero board ID, pointer to start of memory for atag/dtb */
+	mov	r7, #0
+	mov	r8, r4
+	b	2f
+
+	.align	2
+dtb_info:
+	.word	dtb_info
+#ifndef __ARMEB__
+	.word	0xedfe0dd0		@ sig is 0xd00dfeed big endian
+#else
+	.word	0xd00dfeed
+#endif
+	.word	MEMORY_START
+	.word	_edata
+	.word	0x4000			@ maximum DTB size
+0:
+	/* Failure: Zero board ID, NULL atag/dtb */
+	mov 	r7, #0
+	mov	r8, #0			@ pass null pointer as atag
+2 :
+
+#endif /* CONFIG_ZBOOT_ROM */

arch/arm/boot/compressed/head-xscale.S

@@ -0,0 +1,34 @@
+/*
+ * linux/arch/arm/boot/compressed/head-xscale.S
+ *
+ * XScale specific tweaks.  This is merged into head.S by the linker.
+ *
+ */
+
+#include <linux/linkage.h>
+
+		.section        ".start", "ax"
+
+__XScale_start:
+
+		@ Preserve r8/r7 i.e. kernel entry values
+
+		@ Data cache might be active.
+		@ Be sure to flush kernel binary out of the cache,
+		@ whatever state it is, before it is turned off.
+		@ This is done by fetching through currently executed
+		@ memory to be sure we hit the same cache.
+		bic	r2, pc, #0x1f
+		add	r3, r2, #0x10000	@ 64 kb is quite enough...
+1:		ldr	r0, [r2], #32
+		teq	r2, r3
+		bne	1b
+		mcr	p15, 0, r0, c7, c10, 4	@ drain WB
+		mcr	p15, 0, r0, c7, c7, 0	@ flush I & D caches
+
+		@ disabling MMU and caches
+		mrc	p15, 0, r0, c1, c0, 0	@ read control reg
+		bic	r0, r0, #0x05		@ clear DC, MMU
+		bic	r0, r0, #0x1000		@ clear Icache
+		mcr	p15, 0, r0, c1, c0, 0
+

arch/arm/boot/compressed/libfdt_env.h

@@ -0,0 +1,15 @@
+#ifndef _ARM_LIBFDT_ENV_H
+#define _ARM_LIBFDT_ENV_H
+
+#include <linux/types.h>
+#include <linux/string.h>
+#include <asm/byteorder.h>
+
+#define fdt16_to_cpu(x)		be16_to_cpu(x)
+#define cpu_to_fdt16(x)		cpu_to_be16(x)
+#define fdt32_to_cpu(x)		be32_to_cpu(x)
+#define cpu_to_fdt32(x)		cpu_to_be32(x)
+#define fdt64_to_cpu(x)		be64_to_cpu(x)
+#define cpu_to_fdt64(x)		cpu_to_be64(x)
+
+#endif

arch/arm/boot/compressed/ll_char_wr.S

@@ -0,0 +1,134 @@
+/*
+ *  linux/arch/arm/lib/ll_char_wr.S
+ *
+ *  Copyright (C) 1995, 1996 Russell King.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ *  Speedups & 1bpp code (C) 1996 Philip Blundell & Russell King.
+ *
+ *  10-04-96	RMK	Various cleanups & reduced register usage.
+ *  08-04-98	RMK	Shifts re-ordered
+ */
+
+@ Regs: [] = corruptible
+@       {} = used
+@       () = do not use
+
+#include <linux/linkage.h>
+#include <asm/assembler.h>
+	.text
+
+LC0:	.word	LC0
+	.word	bytes_per_char_h
+	.word	video_size_row
+	.word	acorndata_8x8
+	.word	con_charconvtable
+
+/*
+ * r0 = ptr
+ * r1 = char
+ * r2 = white
+ */
+ENTRY(ll_write_char)
+	stmfd	sp!, {r4 - r7, lr}
+@
+@ Smashable regs: {r0 - r3}, [r4 - r7], (r8 - fp), [ip], (sp), [lr], (pc)
+@
+	/*
+	 * calculate offset into character table
+	 */
+	mov	r1, r1, lsl #3
+	/*
+	 * calculate offset required for each row.
+	 */
+	adr	ip, LC0
+	ldmia	ip, {r3, r4, r5, r6, lr}
+	sub	ip, ip, r3
+	add	r6, r6, ip
+	add	lr, lr, ip
+	ldr	r4, [r4, ip]
+	ldr	r5, [r5, ip]
+	/*
+	 * Go to resolution-dependent routine...
+	 */
+	cmp	r4, #4
+	blt	Lrow1bpp
+	add	r0, r0, r5, lsl #3		@ Move to bottom of character
+	orr	r1, r1, #7
+	ldrb	r7, [r6, r1]
+	teq	r4, #8
+	beq	Lrow8bpplp
+@
+@ Smashable regs: {r0 - r3}, [r4], {r5 - r7}, (r8 - fp), [ip], (sp), {lr}, (pc)
+@
+Lrow4bpplp:
+	ldr	r7, [lr, r7, lsl #2]
+	mul	r7, r2, r7
+	sub	r1, r1, #1			@ avoid using r7 directly after
+	str	r7, [r0, -r5]!
+	ldrb	r7, [r6, r1]
+	ldr	r7, [lr, r7, lsl #2]
+	mul	r7, r2, r7
+	tst	r1, #7				@ avoid using r7 directly after
+	str	r7, [r0, -r5]!
+	subne	r1, r1, #1
+	ldrneb	r7, [r6, r1]
+	bne	Lrow4bpplp
+	ldmfd	sp!, {r4 - r7, pc}
+
+@
+@ Smashable regs: {r0 - r3}, [r4], {r5 - r7}, (r8 - fp), [ip], (sp), {lr}, (pc)
+@
+Lrow8bpplp:
+	mov	ip, r7, lsr #4
+	ldr	ip, [lr, ip, lsl #2]
+	mul	r4, r2, ip
+	and	ip, r7, #15			@ avoid r4
+	ldr	ip, [lr, ip, lsl #2]		@ avoid r4
+	mul	ip, r2, ip			@ avoid r4
+	sub	r1, r1, #1			@ avoid ip
+	sub	r0, r0, r5			@ avoid ip
+	stmia	r0, {r4, ip}
+	ldrb	r7, [r6, r1]
+	mov	ip, r7, lsr #4
+	ldr	ip, [lr, ip, lsl #2]
+	mul	r4, r2, ip
+	and	ip, r7, #15			@ avoid r4
+	ldr	ip, [lr, ip, lsl #2]		@ avoid r4
+	mul	ip, r2, ip			@ avoid r4
+	tst	r1, #7				@ avoid ip
+	sub	r0, r0, r5			@ avoid ip
+	stmia	r0, {r4, ip}
+	subne	r1, r1, #1
+	ldrneb	r7, [r6, r1]
+	bne	Lrow8bpplp
+	ldmfd	sp!, {r4 - r7, pc}
+
+@
+@ Smashable regs: {r0 - r3}, [r4], {r5, r6}, [r7], (r8 - fp), [ip], (sp), [lr], (pc)
+@
+Lrow1bpp:
+	add	r6, r6, r1
+	ldmia	r6, {r4, r7}
+	strb	r4, [r0], r5
+	mov	r4, r4, lsr #8
+	strb	r4, [r0], r5
+	mov	r4, r4, lsr #8
+	strb	r4, [r0], r5
+	mov	r4, r4, lsr #8
+	strb	r4, [r0], r5
+	strb	r7, [r0], r5
+	mov	r7, r7, lsr #8
+	strb	r7, [r0], r5
+	mov	r7, r7, lsr #8
+	strb	r7, [r0], r5
+	mov	r7, r7, lsr #8
+	strb	r7, [r0], r5
+	ldmfd	sp!, {r4 - r7, pc}
+
+	.bss
+ENTRY(con_charconvtable)
+	.space	1024

arch/arm/boot/compressed/misc.c

@@ -0,0 +1,168 @@
+/*
+ * misc.c
+ * 
+ * This is a collection of several routines from gzip-1.0.3 
+ * adapted for Linux.
+ *
+ * malloc by Hannu Savolainen 1993 and Matthias Urlichs 1994
+ *
+ * Modified for ARM Linux by Russell King
+ *
+ * Nicolas Pitre <nico@visuaide.com>  1999/04/14 :
+ *  For this code to run directly from Flash, all constant variables must
+ *  be marked with 'const' and all other variables initialized at run-time 
+ *  only.  This way all non constant variables will end up in the bss segment,
+ *  which should point to addresses in RAM and cleared to 0 on start.
+ *  This allows for a much quicker boot time.
+ */
+
+unsigned int __machine_arch_type;
+
+#include <linux/compiler.h>	/* for inline */
+#include <linux/types.h>
+#include <linux/linkage.h>
+
+static void putstr(const char *ptr);
+extern void error(char *x);
+
+#include CONFIG_UNCOMPRESS_INCLUDE
+
+#ifdef CONFIG_DEBUG_ICEDCC
+
+#if defined(CONFIG_CPU_V6) || defined(CONFIG_CPU_V6K) || defined(CONFIG_CPU_V7)
+
+static void icedcc_putc(int ch)
+{
+	int status, i = 0x4000000;
+
+	do {
+		if (--i < 0)
+			return;
+
+		asm volatile ("mrc p14, 0, %0, c0, c1, 0" : "=r" (status));
+	} while (status & (1 << 29));
+
+	asm("mcr p14, 0, %0, c0, c5, 0" : : "r" (ch));
+}
+
+
+#elif defined(CONFIG_CPU_XSCALE)
+
+static void icedcc_putc(int ch)
+{
+	int status, i = 0x4000000;
+
+	do {
+		if (--i < 0)
+			return;
+
+		asm volatile ("mrc p14, 0, %0, c14, c0, 0" : "=r" (status));
+	} while (status & (1 << 28));
+
+	asm("mcr p14, 0, %0, c8, c0, 0" : : "r" (ch));
+}
+
+#else
+
+static void icedcc_putc(int ch)
+{
+	int status, i = 0x4000000;
+
+	do {
+		if (--i < 0)
+			return;
+
+		asm volatile ("mrc p14, 0, %0, c0, c0, 0" : "=r" (status));
+	} while (status & 2);
+
+	asm("mcr p14, 0, %0, c1, c0, 0" : : "r" (ch));
+}
+
+#endif
+
+#define putc(ch)	icedcc_putc(ch)
+#endif
+
+static void putstr(const char *ptr)
+{
+	char c;
+
+	while ((c = *ptr++) != '\0') {
+		if (c == '\n')
+			putc('\r');
+		putc(c);
+	}
+
+	flush();
+}
+
+/*
+ * gzip declarations
+ */
+extern char input_data[];
+extern char input_data_end[];
+
+unsigned char *output_data;
+
+unsigned long free_mem_ptr;
+unsigned long free_mem_end_ptr;
+
+#ifndef arch_error
+#define arch_error(x)
+#endif
+
+void error(char *x)
+{
+	arch_error(x);
+
+	putstr("\n\n");
+	putstr(x);
+	putstr("\n\n -- System halted");
+
+	while(1);	/* Halt */
+}
+
+asmlinkage void __div0(void)
+{
+	error("Attempting division by 0!");
+}
+
+unsigned long __stack_chk_guard;
+
+void __stack_chk_guard_setup(void)
+{
+	__stack_chk_guard = 0x000a0dff;
+}
+
+void __stack_chk_fail(void)
+{
+	error("stack-protector: Kernel stack is corrupted\n");
+}
+
+extern int do_decompress(u8 *input, int len, u8 *output, void (*error)(char *x));
+
+
+void
+decompress_kernel(unsigned long output_start, unsigned long free_mem_ptr_p,
+		unsigned long free_mem_ptr_end_p,
+		int arch_id)
+{
+	int ret;
+
+	__stack_chk_guard_setup();
+
+	output_data		= (unsigned char *)output_start;
+	free_mem_ptr		= free_mem_ptr_p;
+	free_mem_end_ptr	= free_mem_ptr_end_p;
+	__machine_arch_type	= arch_id;
+
+	arch_decomp_setup();
+
+	putstr("Uncompressing Linux...");
+	ret = do_decompress(input_data, input_data_end - input_data,
+			    output_data, error);
+	if (ret)
+		error("decompressor returned an error");
+	else
+		putstr(" done, booting the kernel.\n");
+}

arch/arm/boot/compressed/mmcif-sh7372.c

@@ -0,0 +1,88 @@
+/*
+ * sh7372 MMCIF loader
+ *
+ * Copyright (C) 2010 Magnus Damm
+ * Copyright (C) 2010 Simon Horman
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#include <linux/mmc/sh_mmcif.h>
+#include <linux/mmc/boot.h>
+#include <mach/mmc.h>
+
+#define MMCIF_BASE      (void __iomem *)0xe6bd0000
+
+#define PORT84CR	(void __iomem *)0xe6050054
+#define PORT85CR	(void __iomem *)0xe6050055
+#define PORT86CR	(void __iomem *)0xe6050056
+#define PORT87CR	(void __iomem *)0xe6050057
+#define PORT88CR	(void __iomem *)0xe6050058
+#define PORT89CR	(void __iomem *)0xe6050059
+#define PORT90CR	(void __iomem *)0xe605005a
+#define PORT91CR	(void __iomem *)0xe605005b
+#define PORT92CR	(void __iomem *)0xe605005c
+#define PORT99CR	(void __iomem *)0xe6050063
+
+#define SMSTPCR3	(void __iomem *)0xe615013c
+
+/* SH7372 specific MMCIF loader
+ *
+ * loads the zImage from an MMC card starting from block 1.
+ *
+ * The image must be start with a vrl4 header and
+ * the zImage must start at offset 512 of the image. That is,
+ * at block 2 (=byte 1024) on the media
+ *
+ * Use the following line to write the vrl4 formated zImage
+ * to an MMC card
+ * # dd if=vrl4.out of=/dev/sdx bs=512 seek=1
+ */
+asmlinkage void mmc_loader(unsigned char *buf, unsigned long len)
+{
+	mmc_init_progress();
+	mmc_update_progress(MMC_PROGRESS_ENTER);
+
+	/* Initialise MMC
+	 * registers: PORT84CR-PORT92CR
+	 *            (MMCD0_0-MMCD0_7,MMCCMD0 Control)
+	 * value: 0x04 - select function 4
+	 */
+	 __raw_writeb(0x04, PORT84CR);
+	 __raw_writeb(0x04, PORT85CR);
+	 __raw_writeb(0x04, PORT86CR);
+	 __raw_writeb(0x04, PORT87CR);
+	 __raw_writeb(0x04, PORT88CR);
+	 __raw_writeb(0x04, PORT89CR);
+	 __raw_writeb(0x04, PORT90CR);
+	 __raw_writeb(0x04, PORT91CR);
+	 __raw_writeb(0x04, PORT92CR);
+
+	/* Initialise MMC
+	 * registers: PORT99CR (MMCCLK0 Control)
+	 * value: 0x10 | 0x04 - enable output | select function 4
+	 */
+	__raw_writeb(0x14, PORT99CR);
+
+	/* Enable clock to MMC hardware block */
+	__raw_writel(__raw_readl(SMSTPCR3) & ~(1 << 12), SMSTPCR3);
+
+	mmc_update_progress(MMC_PROGRESS_INIT);
+
+	/* setup MMCIF hardware */
+	sh_mmcif_boot_init(MMCIF_BASE);
+
+	mmc_update_progress(MMC_PROGRESS_LOAD);
+
+	/* load kernel via MMCIF interface */
+	sh_mmcif_boot_do_read(MMCIF_BASE, 2, /* Kernel is at block 2 */
+			      (len + SH_MMCIF_BBS - 1) / SH_MMCIF_BBS, buf);
+
+
+	/* Disable clock to MMC hardware block */
+	__raw_writel(__raw_readl(SMSTPCR3) | (1 << 12), SMSTPCR3);
+
+	mmc_update_progress(MMC_PROGRESS_DONE);
+}

arch/arm/boot/compressed/piggy.gzip.S

@@ -0,0 +1,6 @@
+	.section .piggydata,#alloc
+	.globl	input_data
+input_data:
+	.incbin	"arch/arm/boot/compressed/piggy.gzip"
+	.globl	input_data_end
+input_data_end:

arch/arm/boot/compressed/piggy.lz4.S

@@ -0,0 +1,6 @@
+	.section .piggydata,#alloc
+	.globl	input_data
+input_data:
+	.incbin	"arch/arm/boot/compressed/piggy.lz4"
+	.globl	input_data_end
+input_data_end:

arch/arm/boot/compressed/piggy.lzma.S

@@ -0,0 +1,6 @@
+	.section .piggydata,#alloc
+	.globl	input_data
+input_data:
+	.incbin	"arch/arm/boot/compressed/piggy.lzma"
+	.globl	input_data_end
+input_data_end:

arch/arm/boot/compressed/piggy.lzo.S

@@ -0,0 +1,6 @@
+	.section .piggydata,#alloc
+	.globl	input_data
+input_data:
+	.incbin	"arch/arm/boot/compressed/piggy.lzo"
+	.globl	input_data_end
+input_data_end:

arch/arm/boot/compressed/piggy.xzkern.S

@@ -0,0 +1,6 @@
+	.section .piggydata,#alloc
+	.globl	input_data
+input_data:
+	.incbin	"arch/arm/boot/compressed/piggy.xzkern"
+	.globl	input_data_end
+input_data_end:

arch/arm/boot/compressed/sdhi-sh7372.c

@@ -0,0 +1,95 @@
+/*
+ * SuperH Mobile SDHI
+ *
+ * Copyright (C) 2010 Magnus Damm
+ * Copyright (C) 2010 Kuninori Morimoto
+ * Copyright (C) 2010 Simon Horman
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Parts inspired by u-boot
+ */
+
+#include <linux/io.h>
+#include <mach/mmc.h>
+#include <linux/mmc/boot.h>
+#include <linux/mmc/tmio.h>
+
+#include "sdhi-shmobile.h"
+
+#define PORT179CR       0xe60520b3
+#define PORT180CR       0xe60520b4
+#define PORT181CR       0xe60520b5
+#define PORT182CR       0xe60520b6
+#define PORT183CR       0xe60520b7
+#define PORT184CR       0xe60520b8
+
+#define SMSTPCR3        0xe615013c
+
+#define CR_INPUT_ENABLE 0x10
+#define CR_FUNCTION1    0x01
+
+#define SDHI1_BASE	(void __iomem *)0xe6860000
+#define SDHI_BASE	SDHI1_BASE
+
+/*  SuperH Mobile SDHI loader
+ *
+ * loads the zImage from an SD card starting from block 0
+ * on physical partition 1
+ *
+ * The image must be start with a vrl4 header and
+ * the zImage must start at offset 512 of the image. That is,
+ * at block 1 (=byte 512) of physical partition 1
+ *
+ * Use the following line to write the vrl4 formated zImage
+ * to an SD card
+ * # dd if=vrl4.out of=/dev/sdx bs=512
+ */
+asmlinkage void mmc_loader(unsigned short *buf, unsigned long len)
+{
+	int high_capacity;
+
+	mmc_init_progress();
+
+	mmc_update_progress(MMC_PROGRESS_ENTER);
+        /* Initialise SDHI1 */
+        /* PORT184CR: GPIO_FN_SDHICMD1 Control */
+        __raw_writeb(CR_FUNCTION1, PORT184CR);
+        /* PORT179CR: GPIO_FN_SDHICLK1 Control */
+        __raw_writeb(CR_INPUT_ENABLE|CR_FUNCTION1, PORT179CR);
+        /* PORT181CR: GPIO_FN_SDHID1_3 Control */
+        __raw_writeb(CR_FUNCTION1, PORT183CR);
+        /* PORT182CR: GPIO_FN_SDHID1_2 Control */
+        __raw_writeb(CR_FUNCTION1, PORT182CR);
+        /* PORT183CR: GPIO_FN_SDHID1_1 Control */
+        __raw_writeb(CR_FUNCTION1, PORT181CR);
+        /* PORT180CR: GPIO_FN_SDHID1_0 Control */
+        __raw_writeb(CR_FUNCTION1, PORT180CR);
+
+        /* Enable clock to SDHI1 hardware block */
+        __raw_writel(__raw_readl(SMSTPCR3) & ~(1 << 13), SMSTPCR3);
+
+	/* setup SDHI hardware */
+	mmc_update_progress(MMC_PROGRESS_INIT);
+	high_capacity = sdhi_boot_init(SDHI_BASE);
+	if (high_capacity < 0)
+		goto err;
+
+	mmc_update_progress(MMC_PROGRESS_LOAD);
+	/* load kernel */
+	if (sdhi_boot_do_read(SDHI_BASE, high_capacity,
+			      0, /* Kernel is at block 1 */
+			      (len + TMIO_BBS - 1) / TMIO_BBS, buf))
+		goto err;
+
+        /* Disable clock to SDHI1 hardware block */
+        __raw_writel(__raw_readl(SMSTPCR3) | (1 << 13), SMSTPCR3);
+
+	mmc_update_progress(MMC_PROGRESS_DONE);
+
+	return;
+err:
+	for(;;);
+}

arch/arm/boot/compressed/sdhi-shmobile.c

@@ -0,0 +1,449 @@
+/*
+ * SuperH Mobile SDHI
+ *
+ * Copyright (C) 2010 Magnus Damm
+ * Copyright (C) 2010 Kuninori Morimoto
+ * Copyright (C) 2010 Simon Horman
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Parts inspired by u-boot
+ */
+
+#include <linux/io.h>
+#include <linux/mmc/host.h>
+#include <linux/mmc/core.h>
+#include <linux/mmc/mmc.h>
+#include <linux/mmc/sd.h>
+#include <linux/mmc/tmio.h>
+#include <mach/sdhi.h>
+
+#define OCR_FASTBOOT		(1<<29)
+#define OCR_HCS			(1<<30)
+#define OCR_BUSY		(1<<31)
+
+#define RESP_CMD12		0x00000030
+
+static inline u16 sd_ctrl_read16(void __iomem *base, int addr)
+{
+        return __raw_readw(base + addr);
+}
+
+static inline u32 sd_ctrl_read32(void __iomem *base, int addr)
+{
+	return __raw_readw(base + addr) |
+	       __raw_readw(base + addr + 2) << 16;
+}
+
+static inline void sd_ctrl_write16(void __iomem *base, int addr, u16 val)
+{
+	__raw_writew(val, base + addr);
+}
+
+static inline void sd_ctrl_write32(void __iomem *base, int addr, u32 val)
+{
+	__raw_writew(val, base + addr);
+	__raw_writew(val >> 16, base + addr + 2);
+}
+
+#define ALL_ERROR (TMIO_STAT_CMD_IDX_ERR | TMIO_STAT_CRCFAIL |		\
+		   TMIO_STAT_STOPBIT_ERR | TMIO_STAT_DATATIMEOUT |	\
+		   TMIO_STAT_RXOVERFLOW | TMIO_STAT_TXUNDERRUN |	\
+		   TMIO_STAT_CMDTIMEOUT | TMIO_STAT_ILL_ACCESS |	\
+		   TMIO_STAT_ILL_FUNC)
+
+static int sdhi_intr(void __iomem *base)
+{
+	unsigned long state = sd_ctrl_read32(base, CTL_STATUS);
+
+	if (state & ALL_ERROR) {
+		sd_ctrl_write32(base, CTL_STATUS, ~ALL_ERROR);
+		sd_ctrl_write32(base, CTL_IRQ_MASK,
+				ALL_ERROR |
+				sd_ctrl_read32(base, CTL_IRQ_MASK));
+		return -EINVAL;
+	}
+	if (state & TMIO_STAT_CMDRESPEND) {
+		sd_ctrl_write32(base, CTL_STATUS, ~TMIO_STAT_CMDRESPEND);
+		sd_ctrl_write32(base, CTL_IRQ_MASK,
+				TMIO_STAT_CMDRESPEND |
+				sd_ctrl_read32(base, CTL_IRQ_MASK));
+		return 0;
+	}
+	if (state & TMIO_STAT_RXRDY) {
+		sd_ctrl_write32(base, CTL_STATUS, ~TMIO_STAT_RXRDY);
+		sd_ctrl_write32(base, CTL_IRQ_MASK,
+				TMIO_STAT_RXRDY | TMIO_STAT_TXUNDERRUN |
+				sd_ctrl_read32(base, CTL_IRQ_MASK));
+		return 0;
+	}
+	if (state & TMIO_STAT_DATAEND) {
+		sd_ctrl_write32(base, CTL_STATUS, ~TMIO_STAT_DATAEND);
+		sd_ctrl_write32(base, CTL_IRQ_MASK,
+				TMIO_STAT_DATAEND |
+				sd_ctrl_read32(base, CTL_IRQ_MASK));
+		return 0;
+	}
+
+	return -EAGAIN;
+}
+
+static int sdhi_boot_wait_resp_end(void __iomem *base)
+{
+	int err = -EAGAIN, timeout = 10000000;
+
+	while (timeout--) {
+		err = sdhi_intr(base);
+		if (err != -EAGAIN)
+			break;
+		udelay(1);
+	}
+
+	return err;
+}
+
+/* SDHI_CLK_CTRL */
+#define CLK_MMC_ENABLE                 (1 << 8)
+#define CLK_MMC_INIT                   (1 << 6)        /* clk / 256 */
+
+static void sdhi_boot_mmc_clk_stop(void __iomem *base)
+{
+	sd_ctrl_write16(base, CTL_CLK_AND_WAIT_CTL, 0x0000);
+	msleep(10);
+	sd_ctrl_write16(base, CTL_SD_CARD_CLK_CTL, ~CLK_MMC_ENABLE &
+		sd_ctrl_read16(base, CTL_SD_CARD_CLK_CTL));
+	msleep(10);
+}
+
+static void sdhi_boot_mmc_clk_start(void __iomem *base)
+{
+	sd_ctrl_write16(base, CTL_SD_CARD_CLK_CTL, CLK_MMC_ENABLE |
+		sd_ctrl_read16(base, CTL_SD_CARD_CLK_CTL));
+	msleep(10);
+	sd_ctrl_write16(base, CTL_CLK_AND_WAIT_CTL, CLK_MMC_ENABLE);
+	msleep(10);
+}
+
+static void sdhi_boot_reset(void __iomem *base)
+{
+	sd_ctrl_write16(base, CTL_RESET_SD, 0x0000);
+	msleep(10);
+	sd_ctrl_write16(base, CTL_RESET_SD, 0x0001);
+	msleep(10);
+}
+
+/* Set MMC clock / power.
+ * Note: This controller uses a simple divider scheme therefore it cannot
+ * run a MMC card at full speed (20MHz). The max clock is 24MHz on SD, but as
+ * MMC wont run that fast, it has to be clocked at 12MHz which is the next
+ * slowest setting.
+ */
+static int sdhi_boot_mmc_set_ios(void __iomem *base, struct mmc_ios *ios)
+{
+	if (sd_ctrl_read32(base, CTL_STATUS) & TMIO_STAT_CMD_BUSY)
+		return -EBUSY;
+
+	if (ios->clock)
+		sd_ctrl_write16(base, CTL_SD_CARD_CLK_CTL,
+				ios->clock | CLK_MMC_ENABLE);
+
+	/* Power sequence - OFF -> ON -> UP */
+	switch (ios->power_mode) {
+	case MMC_POWER_OFF: /* power down SD bus */
+		sdhi_boot_mmc_clk_stop(base);
+		break;
+	case MMC_POWER_ON: /* power up SD bus */
+		break;
+	case MMC_POWER_UP: /* start bus clock */
+		sdhi_boot_mmc_clk_start(base);
+		break;
+	}
+
+	switch (ios->bus_width) {
+	case MMC_BUS_WIDTH_1:
+		sd_ctrl_write16(base, CTL_SD_MEM_CARD_OPT, 0x80e0);
+	break;
+	case MMC_BUS_WIDTH_4:
+		sd_ctrl_write16(base, CTL_SD_MEM_CARD_OPT, 0x00e0);
+	break;
+	}
+
+	/* Let things settle. delay taken from winCE driver */
+	udelay(140);
+
+	return 0;
+}
+
+/* These are the bitmasks the tmio chip requires to implement the MMC response
+ * types. Note that R1 and R6 are the same in this scheme. */
+#define RESP_NONE      0x0300
+#define RESP_R1        0x0400
+#define RESP_R1B       0x0500
+#define RESP_R2        0x0600
+#define RESP_R3        0x0700
+#define DATA_PRESENT   0x0800
+#define TRANSFER_READ  0x1000
+
+static int sdhi_boot_request(void __iomem *base, struct mmc_command *cmd)
+{
+	int err, c = cmd->opcode;
+
+	switch (mmc_resp_type(cmd)) {
+	case MMC_RSP_NONE: c |= RESP_NONE; break;
+	case MMC_RSP_R1:   c |= RESP_R1;   break;
+	case MMC_RSP_R1B:  c |= RESP_R1B;  break;
+	case MMC_RSP_R2:   c |= RESP_R2;   break;
+	case MMC_RSP_R3:   c |= RESP_R3;   break;
+	default:
+		return -EINVAL;
+	}
+
+	/* No interrupts so this may not be cleared */
+	sd_ctrl_write32(base, CTL_STATUS, ~TMIO_STAT_CMDRESPEND);
+
+	sd_ctrl_write32(base, CTL_IRQ_MASK, TMIO_STAT_CMDRESPEND |
+			sd_ctrl_read32(base, CTL_IRQ_MASK));
+	sd_ctrl_write32(base, CTL_ARG_REG, cmd->arg);
+	sd_ctrl_write16(base, CTL_SD_CMD, c);
+
+
+	sd_ctrl_write32(base, CTL_IRQ_MASK,
+			~(TMIO_STAT_CMDRESPEND | ALL_ERROR) &
+			sd_ctrl_read32(base, CTL_IRQ_MASK));
+
+	err = sdhi_boot_wait_resp_end(base);
+	if (err)
+		return err;
+
+	cmd->resp[0] = sd_ctrl_read32(base, CTL_RESPONSE);
+
+	return 0;
+}
+
+static int sdhi_boot_do_read_single(void __iomem *base, int high_capacity,
+				    unsigned long block, unsigned short *buf)
+{
+	int err, i;
+
+	/* CMD17 - Read */
+	{
+		struct mmc_command cmd;
+
+		cmd.opcode = MMC_READ_SINGLE_BLOCK | \
+			     TRANSFER_READ | DATA_PRESENT;
+		if (high_capacity)
+			cmd.arg = block;
+		else
+			cmd.arg = block * TMIO_BBS;
+		cmd.flags = MMC_RSP_R1;
+		err = sdhi_boot_request(base, &cmd);
+		if (err)
+			return err;
+	}
+
+	sd_ctrl_write32(base, CTL_IRQ_MASK,
+			~(TMIO_STAT_DATAEND | TMIO_STAT_RXRDY |
+			  TMIO_STAT_TXUNDERRUN) &
+			sd_ctrl_read32(base, CTL_IRQ_MASK));
+	err = sdhi_boot_wait_resp_end(base);
+	if (err)
+		return err;
+
+	sd_ctrl_write16(base, CTL_SD_XFER_LEN, TMIO_BBS);
+	for (i = 0; i < TMIO_BBS / sizeof(*buf); i++)
+		*buf++ = sd_ctrl_read16(base, RESP_CMD12);
+
+	err = sdhi_boot_wait_resp_end(base);
+	if (err)
+		return err;
+
+	return 0;
+}
+
+int sdhi_boot_do_read(void __iomem *base, int high_capacity,
+		      unsigned long offset, unsigned short count,
+		      unsigned short *buf)
+{
+	unsigned long i;
+	int err = 0;
+
+	for (i = 0; i < count; i++) {
+		err = sdhi_boot_do_read_single(base, high_capacity, offset + i,
+					       buf + (i * TMIO_BBS /
+						      sizeof(*buf)));
+		if (err)
+			return err;
+	}
+
+	return 0;
+}
+
+#define VOLTAGES (MMC_VDD_32_33 | MMC_VDD_33_34)
+
+int sdhi_boot_init(void __iomem *base)
+{
+	bool sd_v2 = false, sd_v1_0 = false;
+	unsigned short cid;
+	int err, high_capacity = 0;
+
+	sdhi_boot_mmc_clk_stop(base);
+	sdhi_boot_reset(base);
+
+	/* mmc0: clock 400000Hz busmode 1 powermode 2 cs 0 Vdd 21 width 0 timing 0 */
+	{
+		struct mmc_ios ios;
+		ios.power_mode = MMC_POWER_ON;
+		ios.bus_width = MMC_BUS_WIDTH_1;
+		ios.clock = CLK_MMC_INIT;
+		err = sdhi_boot_mmc_set_ios(base, &ios);
+		if (err)
+			return err;
+	}
+
+	/* CMD0 */
+	{
+		struct mmc_command cmd;
+		msleep(1);
+		cmd.opcode = MMC_GO_IDLE_STATE;
+		cmd.arg = 0;
+		cmd.flags = MMC_RSP_NONE;
+		err = sdhi_boot_request(base, &cmd);
+		if (err)
+			return err;
+		msleep(2);
+	}
+
+	/* CMD8 - Test for SD version 2 */
+	{
+		struct mmc_command cmd;
+		cmd.opcode = SD_SEND_IF_COND;
+		cmd.arg = (VOLTAGES != 0) << 8 | 0xaa;
+		cmd.flags = MMC_RSP_R1;
+		err = sdhi_boot_request(base, &cmd); /* Ignore error */
+		if ((cmd.resp[0] & 0xff) == 0xaa)
+			sd_v2 = true;
+	}
+
+	/* CMD55 - Get OCR (SD) */
+	{
+		int timeout = 1000;
+		struct mmc_command cmd;
+
+		cmd.arg = 0;
+
+		do {
+			cmd.opcode = MMC_APP_CMD;
+			cmd.flags = MMC_RSP_R1;
+			cmd.arg = 0;
+			err = sdhi_boot_request(base, &cmd);
+			if (err)
+				break;
+
+			cmd.opcode = SD_APP_OP_COND;
+			cmd.flags = MMC_RSP_R3;
+			cmd.arg = (VOLTAGES & 0xff8000);
+			if (sd_v2)
+				cmd.arg |= OCR_HCS;
+			cmd.arg |= OCR_FASTBOOT;
+			err = sdhi_boot_request(base, &cmd);
+			if (err)
+				break;
+
+			msleep(1);
+		} while((!(cmd.resp[0] & OCR_BUSY)) && --timeout);
+
+		if (!err && timeout) {
+			if (!sd_v2)
+				sd_v1_0 = true;
+			high_capacity = (cmd.resp[0] & OCR_HCS) == OCR_HCS;
+		}
+	}
+
+	/* CMD1 - Get OCR (MMC) */
+	if (!sd_v2 && !sd_v1_0) {
+		int timeout = 1000;
+		struct mmc_command cmd;
+
+		do {
+			cmd.opcode = MMC_SEND_OP_COND;
+			cmd.arg = VOLTAGES | OCR_HCS;
+			cmd.flags = MMC_RSP_R3;
+			err = sdhi_boot_request(base, &cmd);
+			if (err)
+				return err;
+
+			msleep(1);
+		} while((!(cmd.resp[0] & OCR_BUSY)) && --timeout);
+
+		if (!timeout)
+			return -EAGAIN;
+
+		high_capacity = (cmd.resp[0] & OCR_HCS) == OCR_HCS;
+	}
+
+	/* CMD2 - Get CID */
+	{
+		struct mmc_command cmd;
+		cmd.opcode = MMC_ALL_SEND_CID;
+		cmd.arg = 0;
+		cmd.flags = MMC_RSP_R2;
+		err = sdhi_boot_request(base, &cmd);
+		if (err)
+			return err;
+	}
+
+	/* CMD3
+	 * MMC: Set the relative address
+	 * SD:  Get the relative address
+	 * Also puts the card into the standby state
+	 */
+	{
+		struct mmc_command cmd;
+		cmd.opcode = MMC_SET_RELATIVE_ADDR;
+		cmd.arg = 0;
+		cmd.flags = MMC_RSP_R1;
+		err = sdhi_boot_request(base, &cmd);
+		if (err)
+			return err;
+		cid = cmd.resp[0] >> 16;
+	}
+
+	/* CMD9 - Get CSD */
+	{
+		struct mmc_command cmd;
+		cmd.opcode = MMC_SEND_CSD;
+		cmd.arg = cid << 16;
+		cmd.flags = MMC_RSP_R2;
+		err = sdhi_boot_request(base, &cmd);
+		if (err)
+			return err;
+	}
+
+	/* CMD7 - Select the card */
+	{
+		struct mmc_command cmd;
+		cmd.opcode = MMC_SELECT_CARD;
+		//cmd.arg = rca << 16;
+		cmd.arg = cid << 16;
+		//cmd.flags = MMC_RSP_R1B;
+		cmd.flags = MMC_RSP_R1;
+		err = sdhi_boot_request(base, &cmd);
+		if (err)
+			return err;
+	}
+
+	/* CMD16 - Set the block size */
+	{
+		struct mmc_command cmd;
+		cmd.opcode = MMC_SET_BLOCKLEN;
+		cmd.arg = TMIO_BBS;
+		cmd.flags = MMC_RSP_R1;
+		err = sdhi_boot_request(base, &cmd);
+		if (err)
+			return err;
+	}
+
+	return high_capacity;
+}

arch/arm/boot/compressed/sdhi-shmobile.h

@@ -0,0 +1,11 @@
+#ifndef SDHI_MOBILE_H
+#define SDHI_MOBILE_H
+
+#include <linux/compiler.h>
+
+int sdhi_boot_do_read(void __iomem *base, int high_capacity,
+		      unsigned long offset, unsigned short count,
+		      unsigned short *buf);
+int sdhi_boot_init(void __iomem *base);
+
+#endif

arch/arm/boot/compressed/string.c

@@ -0,0 +1,127 @@
+/*
+ * arch/arm/boot/compressed/string.c
+ *
+ * Small subset of simple string routines
+ */
+
+#include <linux/string.h>
+
+void *memcpy(void *__dest, __const void *__src, size_t __n)
+{
+	int i = 0;
+	unsigned char *d = (unsigned char *)__dest, *s = (unsigned char *)__src;
+
+	for (i = __n >> 3; i > 0; i--) {
+		*d++ = *s++;
+		*d++ = *s++;
+		*d++ = *s++;
+		*d++ = *s++;
+		*d++ = *s++;
+		*d++ = *s++;
+		*d++ = *s++;
+		*d++ = *s++;
+	}
+
+	if (__n & 1 << 2) {
+		*d++ = *s++;
+		*d++ = *s++;
+		*d++ = *s++;
+		*d++ = *s++;
+	}
+
+	if (__n & 1 << 1) {
+		*d++ = *s++;
+		*d++ = *s++;
+	}
+
+	if (__n & 1)
+		*d++ = *s++;
+
+	return __dest;
+}
+
+void *memmove(void *__dest, __const void *__src, size_t count)
+{
+	unsigned char *d = __dest;
+	const unsigned char *s = __src;
+
+	if (__dest == __src)
+		return __dest;
+
+	if (__dest < __src)
+		return memcpy(__dest, __src, count);
+
+	while (count--)
+		d[count] = s[count];
+	return __dest;
+}
+
+size_t strlen(const char *s)
+{
+	const char *sc = s;
+
+	while (*sc != '\0')
+		sc++;
+	return sc - s;
+}
+
+int memcmp(const void *cs, const void *ct, size_t count)
+{
+	const unsigned char *su1 = cs, *su2 = ct, *end = su1 + count;
+	int res = 0;
+
+	while (su1 < end) {
+		res = *su1++ - *su2++;
+		if (res)
+			break;
+	}
+	return res;
+}
+
+int strcmp(const char *cs, const char *ct)
+{
+	unsigned char c1, c2;
+	int res = 0;
+
+	do {
+		c1 = *cs++;
+		c2 = *ct++;
+		res = c1 - c2;
+		if (res)
+			break;
+	} while (c1);
+	return res;
+}
+
+void *memchr(const void *s, int c, size_t count)
+{
+	const unsigned char *p = s;
+
+	while (count--)
+		if ((unsigned char)c == *p++)
+			return (void *)(p - 1);
+	return NULL;
+}
+
+char *strchr(const char *s, int c)
+{
+	while (*s != (char)c)
+		if (*s++ == '\0')
+			return NULL;
+	return (char *)s;
+}
+
+#undef memset
+
+void *memset(void *s, int c, size_t count)
+{
+	char *xs = s;
+	while (count--)
+		*xs++ = c;
+	return s;
+}
+
+void __memzero(void *s, size_t count)
+{
+	memset(s, 0, count);
+}

arch/arm/boot/compressed/vmlinux.lds.S

@@ -0,0 +1,87 @@
+/*
+ *  Copyright (C) 2000 Russell King
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifdef CONFIG_CPU_ENDIAN_BE8
+#define ZIMAGE_MAGIC(x) ( (((x) >> 24) & 0x000000ff) | \
+			  (((x) >>  8) & 0x0000ff00) | \
+			  (((x) <<  8) & 0x00ff0000) | \
+			  (((x) << 24) & 0xff000000) )
+#else
+#define ZIMAGE_MAGIC(x) (x)
+#endif
+
+OUTPUT_ARCH(arm)
+ENTRY(_start)
+SECTIONS
+{
+  /DISCARD/ : {
+    *(.ARM.exidx*)
+    *(.ARM.extab*)
+    /*
+     * Discard any r/w data - this produces a link error if we have any,
+     * which is required for PIC decompression.  Local data generates
+     * GOTOFF relocations, which prevents it being relocated independently
+     * of the text/got segments.
+     */
+    *(.data)
+  }
+
+  . = TEXT_START;
+  _text = .;
+
+  .text : {
+    _start = .;
+    *(.start)
+    *(.text)
+    *(.text.*)
+    *(.fixup)
+    *(.gnu.warning)
+    *(.glue_7t)
+    *(.glue_7)
+  }
+  .rodata : {
+    *(.rodata)
+    *(.rodata.*)
+  }
+  .piggydata : {
+    *(.piggydata)
+  }
+
+  . = ALIGN(4);
+  _etext = .;
+
+  .got.plt		: { *(.got.plt) }
+  _got_start = .;
+  .got			: { *(.got) }
+  _got_end = .;
+
+  /* ensure the zImage file size is always a multiple of 64 bits */
+  /* (without a dummy byte, ld just ignores the empty section) */
+  .pad			: { BYTE(0); . = ALIGN(8); }
+  _edata = .;
+
+  _magic_sig = ZIMAGE_MAGIC(0x016f2818);
+  _magic_start = ZIMAGE_MAGIC(_start);
+  _magic_end = ZIMAGE_MAGIC(_edata);
+
+  . = BSS_START;
+  __bss_start = .;
+  .bss			: { *(.bss) }
+  _end = .;
+
+  . = ALIGN(8);		/* the stack must be 64-bit aligned */
+  .stack		: { *(.stack) }
+
+  .stab 0		: { *(.stab) }
+  .stabstr 0		: { *(.stabstr) }
+  .stab.excl 0		: { *(.stab.excl) }
+  .stab.exclstr 0	: { *(.stab.exclstr) }
+  .stab.index 0		: { *(.stab.index) }
+  .stab.indexstr 0	: { *(.stab.indexstr) }
+  .comment 0		: { *(.comment) }
+}