openadk/target/linux/patches/2.6.37/brcm.patch

diff -Nur linux-2.6.37.orig/arch/mips/bcm47xx/Makefile linux-2.6.37/arch/mips/bcm47xx/Makefile
--- linux-2.6.37.orig/arch/mips/bcm47xx/Makefile	2011-01-05 01:50:19.000000000 +0100
+++ linux-2.6.37/arch/mips/bcm47xx/Makefile	2011-04-26 20:26:19.777672932 +0200
@@ -3,4 +3,4 @@
 # under Linux.
 #
 
-obj-y := gpio.o irq.o nvram.o prom.o serial.o setup.o time.o wgt634u.o
+obj-y := gpio.o irq.o nvram.o prom.o serial.o setup.o time.o platform.o
diff -Nur linux-2.6.37.orig/arch/mips/bcm47xx/platform.c linux-2.6.37/arch/mips/bcm47xx/platform.c
--- linux-2.6.37.orig/arch/mips/bcm47xx/platform.c	1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.37/arch/mips/bcm47xx/platform.c	2011-04-26 20:26:19.917673199 +0200
@@ -0,0 +1,139 @@
+/*
+ * 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.
+ *
+ * Copyright (C) 2010, 2011 Waldemar Brodkorb <wbx@openadk.org>
+ * Copyright © 2007, 2011 Thorsten Glaser <tg@freewrt.org>
+ */
+
+#include <linux/platform_device.h>
+#include <linux/module.h>
+#include <linux/mtd/physmap.h>
+#include <linux/ssb/ssb.h>
+
+#include <asm/mach-bcm47xx/bcm47xx.h>
+#include <asm/mach-bcm47xx/nvram.h>
+
+#define NVRAM_FLASH_SIZE 0x10000
+#define CFGFS_FLASH_SIZE (64 * 1024)
+
+static struct mtd_partition bcm47xx_partitions[] = {
+#define SLOT_CFE 0
+	{
+		.name       = "cfe",
+		.offset     = 0,
+		.size       = 0x40000,		/* 256k */
+		.mask_flags = MTD_WRITEABLE	/* force read-only */
+	},
+#define SLOT_LINUX 1
+	{
+		.name   = "linux",
+		.offset = 0,
+		.size   = 0,
+	},
+#define SLOT_ROOTFS 2
+	{
+		.name   = "rootfs",
+		.offset = 0,
+		.size   = 0,
+	},
+#define SLOT_CFGFS 3
+	{
+		.name   = "cfgfs",
+		.offset = 0,
+		.size   = 0,
+	},
+#define SLOT_NVRAM 4
+	{
+		.name   = "nvram",
+		.offset = 0,
+		.size   = 0,
+	},
+};
+
+static struct physmap_flash_data bcm47xx_flash_data = {
+	.parts    = bcm47xx_partitions,
+	.nr_parts = ARRAY_SIZE(bcm47xx_partitions)
+};
+
+static struct resource bcm47xx_flash_resource = {
+	.flags = IORESOURCE_MEM,
+};
+
+static struct platform_device bcm47xx_flash = {
+	.name          = "physmap-flash",
+	.id            = 0,
+	.dev           = { .platform_data = &bcm47xx_flash_data, },
+	.resource      = &bcm47xx_flash_resource,
+	.num_resources = 1,
+};
+
+static struct platform_device *bcm47xx_devices[] __initdata = {
+	&bcm47xx_flash,
+};
+
+struct bcm47xx_trx_header {
+#define BCM47XX_TRX_MAGIC 0x30524448
+	u32 magic;
+	u32 len;
+	u32 crc32;
+	u32 flag_version;
+	u32 offsets[3];
+};
+
+#define UPTODOWN(slot, psize) do {			\
+	posn -= psize; left -= psize;			\
+	bcm47xx_partitions[slot].offset = posn;		\
+	bcm47xx_partitions[slot].size = psize;		\
+} while (/* CONSTCOND */ 0)
+
+static int __init bcm47xx_register_devices(void)
+{
+	u32 flash_size;
+	size_t left, posn;
+	struct ssb_mipscore *mcore = &ssb_bcm47xx.mipscore;
+	struct bcm47xx_trx_header *trx_hdr;
+
+	trx_hdr = (void *)KSEG1ADDR(mcore->flash_window + 0x40000);
+
+	/* devices might have 2, 4 or 8 MB flash size */
+	flash_size = mcore->flash_window_size;
+	printk(KERN_INFO "FLASH SIZE: 0x%x\n", flash_size);
+
+	left = flash_size - 0x40000;
+	posn = flash_size;
+	UPTODOWN(SLOT_NVRAM, NVRAM_FLASH_SIZE);
+	UPTODOWN(SLOT_CFGFS, CFGFS_FLASH_SIZE);
+	bcm47xx_partitions[SLOT_LINUX].offset = 0x40000;
+	bcm47xx_partitions[SLOT_LINUX].size = left;
+
+	if (trx_hdr->magic == BCM47XX_TRX_MAGIC) {
+		bcm47xx_partitions[SLOT_ROOTFS].offset =
+		    bcm47xx_partitions[SLOT_LINUX].offset +
+		    trx_hdr->offsets[1];
+		bcm47xx_partitions[SLOT_ROOTFS].size =
+		    bcm47xx_partitions[SLOT_LINUX].size -
+		    trx_hdr->offsets[1];
+	} else
+		printk("bcm47xx/platform: no TRX header found\n");
+
+	printk(KERN_INFO "=== Flash map dump ===\n");
+	for (posn = 0; posn < bcm47xx_flash_data.nr_parts; ++posn)
+		printk(KERN_INFO " #%u %08X @%08X '%s'\n",
+		    (unsigned int)posn,
+		    (unsigned int)bcm47xx_partitions[posn].size,
+		    (unsigned int)bcm47xx_partitions[posn].offset,
+		    bcm47xx_partitions[posn].name);
+	printk(KERN_INFO "=== Hope this works, have a nice day\n");
+
+	bcm47xx_flash_data.width = mcore->flash_buswidth;
+	bcm47xx_flash_resource.start = mcore->flash_window;
+	bcm47xx_flash_resource.end = mcore->flash_window
+				   + mcore->flash_window_size
+				   - 1;
+	return platform_add_devices(bcm47xx_devices,
+			    ARRAY_SIZE(bcm47xx_devices));
+}
+
+device_initcall(bcm47xx_register_devices);
diff -Nur linux-2.6.37.orig/arch/mips/boot/compressed/Makefile linux-2.6.37/arch/mips/boot/compressed/Makefile
--- linux-2.6.37.orig/arch/mips/boot/compressed/Makefile	2011-01-05 01:50:19.000000000 +0100
+++ linux-2.6.37/arch/mips/boot/compressed/Makefile	2011-04-26 20:44:04.607661119 +0200
@@ -58,8 +58,13 @@
 # Calculate the load address of the compressed kernel image
 hostprogs-y := calc_vmlinuz_load_addr
 
+ifdef CONFIG_BCM47XX
+# XXX just after CFE, just pray the address is static
+VMLINUZ_LOAD_ADDRESS = 0xffffffff80480000
+else
 VMLINUZ_LOAD_ADDRESS = $(shell $(obj)/calc_vmlinuz_load_addr \
 		$(obj)/vmlinux.bin $(VMLINUX_LOAD_ADDRESS))
+endif
 
 vmlinuzobjs-y += $(obj)/piggy.o
 
@@ -105,4 +110,12 @@
 vmlinuz.srec: vmlinuz
 	$(call cmd,objcopy)
 
-clean-files := $(objtree)/vmlinuz $(objtree)/vmlinuz.{32,ecoff,bin,srec}
+AFLAGS_selfreloc.o := -DVMLINUZ_LOAD_ADDRESS=$(VMLINUZ_LOAD_ADDRESS)
+CPPFLAGS_selfreloc.lds := $(KBUILD_CFLAGS)
+
+arch/mips/boot/compressed/selfreloc.o: arch/mips/boot/compressed/selfreloc.S vmlinuz.bin FORCE
+
+vmlinuz.elf: arch/mips/boot/compressed/selfreloc.o arch/mips/boot/compressed/selfreloc.lds FORCE
+	$(LD) $(LDFLAGS) -T arch/mips/boot/compressed/selfreloc.lds arch/mips/boot/compressed/selfreloc.o -o $@
+
+clean-files := $(objtree)/vmlinuz $(objtree)/vmlinuz.{32,ecoff,bin,srec,elf} $(objtree)/arch/mips/boot/compressed/selfreloc.{o,lds}
diff -Nur linux-2.6.37.orig/arch/mips/boot/compressed/selfreloc.lds.S linux-2.6.37/arch/mips/boot/compressed/selfreloc.lds.S
--- linux-2.6.37.orig/arch/mips/boot/compressed/selfreloc.lds.S	1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.37/arch/mips/boot/compressed/selfreloc.lds.S	2011-04-26 20:26:20.347764678 +0200
@@ -0,0 +1,39 @@
+/*-
+ * written 2010 by Thorsten Glaser <tg@debian.org> based on
+ * arch/mips/kernel/vmlinux.lds and arch/mips/boot/compressed/ld.script
+ */
+
+#include <asm/asm-offsets.h>
+#include <asm/page.h>
+#include <asm-generic/vmlinux.lds.h>
+
+#undef mips
+#define mips mips
+OUTPUT_ARCH(mips)
+ENTRY(selfreloc_start)
+PHDRS {
+	text PT_LOAD FLAGS(7);	/* RWX */
+}
+SECTIONS
+{
+	. = VMLINUX_LOAD_ADDRESS;
+	.text : {
+		*(.text)
+		*(.text.*)
+		*(.rodata)
+		*(.rodata.*)
+		*(.data)
+		*(.data.*)
+		*(.bss)
+		*(.bss.*)
+	} :text
+	/DISCARD/ : {
+		*(.MIPS.options)
+		*(.options)
+		*(.pdr)
+		*(.reginfo)
+		*(.comment)
+		*(.note)
+		*(.gnu.attributes)
+	}
+}
diff -Nur linux-2.6.37.orig/arch/mips/boot/compressed/selfreloc.S linux-2.6.37/arch/mips/boot/compressed/selfreloc.S
--- linux-2.6.37.orig/arch/mips/boot/compressed/selfreloc.S	1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.37/arch/mips/boot/compressed/selfreloc.S	2011-04-26 20:26:20.197673829 +0200
@@ -0,0 +1,54 @@
+/*-
+ * written 2011 by Thorsten Glaser <tg@freewrt.org> based on
+ * arch/mips/boot/compressed/head.S
+ */
+
+#include <asm/asm.h>
+#include <asm/regdef.h>
+
+	.set noreorder
+	.cprestore
+
+	.text
+	LEAF(selfreloc_start)
+selfreloc_start:
+	/* Save boot rom start args */
+	move	s0, a0
+	move	s1, a1
+	move	s2, a2
+	move	s3, a3
+
+	/* Copy code to the correct place */
+	PTR_LI	a0, VMLINUZ_LOAD_ADDRESS
+	PTR_LA	a1, imgbeg
+	PTR_LA	a2, imgend
+1:	lw	t0, 0(a1)
+	sw	t0, 0(a0)
+	add	a1, 4
+	add	a0, 4
+	blt	a1, a2, 1b
+	 nop
+
+	/* Restore boot rom start args */
+	move	a0, s0
+	move	a1, s1
+	move	a2, s2
+	move	a3, s3
+
+	/* Jump to the code at its new location */
+	PTR_LI	k0, VMLINUZ_LOAD_ADDRESS
+	jr	k0
+	 nop
+
+	/* Just in case we come back… */
+3:
+	b	3b
+	 nop
+	END(selfreloc_start)
+
+	.globl	imgbeg
+	.p2align 2
+imgbeg:	.incbin	"vmlinuz.bin"
+	.globl	imgend
+	.p2align 2
+imgend:
diff -Nur linux-2.6.37.orig/arch/mips/boot/compressed/uart-16550.c linux-2.6.37/arch/mips/boot/compressed/uart-16550.c
--- linux-2.6.37.orig/arch/mips/boot/compressed/uart-16550.c	2011-01-05 01:50:19.000000000 +0100
+++ linux-2.6.37/arch/mips/boot/compressed/uart-16550.c	2011-04-26 20:26:20.467673519 +0200
@@ -18,6 +18,11 @@
 #define PORT(offset) (CKSEG1ADDR(AR7_REGS_UART0) + (4 * offset))
 #endif
 
+#ifdef CONFIG_BCM47XX
+#define UART_BASE 0x18000300
+#define PORT(offset) (CKSEG1ADDR(UART_BASE) + (offset))
+#endif
+
 #ifndef PORT
 #error please define the serial port address for your own machine
 #endif
diff -Nur linux-2.6.37.orig/arch/mips/Kconfig linux-2.6.37/arch/mips/Kconfig
--- linux-2.6.37.orig/arch/mips/Kconfig	2011-01-05 01:50:19.000000000 +0100
+++ linux-2.6.37/arch/mips/Kconfig	2011-04-26 20:26:19.637668480 +0200
@@ -84,6 +84,7 @@
 	select GENERIC_GPIO
 	select SYS_HAS_EARLY_PRINTK
 	select CFE
+	select SYS_SUPPORTS_ZBOOT_UART16550
 	help
 	 Support for BCM47XX based boards
 
diff -Nur linux-2.6.37.orig/arch/mips/Makefile linux-2.6.37/arch/mips/Makefile
--- linux-2.6.37.orig/arch/mips/Makefile	2011-01-05 01:50:19.000000000 +0100
+++ linux-2.6.37/arch/mips/Makefile	2011-04-26 20:26:19.647661042 +0200
@@ -76,6 +76,7 @@
 all-$(CONFIG_BOOT_ELF32)	:= $(vmlinux-32)
 all-$(CONFIG_BOOT_ELF64)	:= $(vmlinux-64)
 all-$(CONFIG_SYS_SUPPORTS_ZBOOT)+= vmlinuz
+all-$(CONFIG_BCM47XX)		+= vmlinuz.elf
 
 #
 # GCC uses -G 0 -mabicalls -fpic as default.  We don't want PIC in the kernel
@@ -276,7 +277,7 @@
 	$(Q)$(MAKE) $(build)=arch/mips/boot VMLINUX=$(vmlinux-32) arch/mips/boot/$@
 
 # boot/compressed
-vmlinuz vmlinuz.bin vmlinuz.ecoff vmlinuz.srec: $(vmlinux-32) FORCE
+vmlinuz vmlinuz.bin vmlinuz.ecoff vmlinuz.srec vmlinuz.elf: $(vmlinux-32) FORCE
 	$(Q)$(MAKE) $(build)=arch/mips/boot/compressed \
 	   VMLINUX_LOAD_ADDRESS=$(load-y) 32bit-bfd=$(32bit-bfd) $@
 
@@ -313,6 +314,7 @@
 	echo '  vmlinuz.ecoff        - ECOFF zboot image'
 	echo '  vmlinuz.bin          - Raw binary zboot image'
 	echo '  vmlinuz.srec         - SREC zboot image'
+	echo '  vmlinuz.elf          - ELF self-relocating zboot image'
 	echo
 	echo '  These will be default as apropriate for a configured platform.'
 endef
diff -Nur linux-2.6.37.orig/drivers/ssb/driver_mipscore.c linux-2.6.37/drivers/ssb/driver_mipscore.c
--- linux-2.6.37.orig/drivers/ssb/driver_mipscore.c	2011-01-05 01:50:19.000000000 +0100
+++ linux-2.6.37/drivers/ssb/driver_mipscore.c	2011-04-26 20:26:20.597672444 +0200
@@ -190,10 +190,11 @@
 {
 	struct ssb_bus *bus = mcore->dev->bus;
 
+	printk("Check for vendor with value: %d", bus->chipco.dev->id.vendor);
 	mcore->flash_buswidth = 2;
 	if (bus->chipco.dev) {
 		mcore->flash_window = 0x1c000000;
-		mcore->flash_window_size = 0x02000000;
+		mcore->flash_window_size = 0x00800000;
 		if ((ssb_read32(bus->chipco.dev, SSB_CHIPCO_FLASH_CFG)
 		               & SSB_CHIPCO_CFG_DS16) == 0)
 			mcore->flash_buswidth = 1;
diff -Nur linux-2.6.37.orig/init/Kconfig linux-2.6.37/init/Kconfig
--- linux-2.6.37.orig/init/Kconfig	2011-01-05 01:50:19.000000000 +0100
+++ linux-2.6.37/init/Kconfig	2011-04-26 20:26:20.727673059 +0200
@@ -158,6 +158,7 @@
 config KERNEL_GZIP
 	bool "Gzip"
 	depends on HAVE_KERNEL_GZIP
+	select DECOMPRESS_GZIP
 	help
 	  The old and tried gzip compression. It provides a good balance
 	  between compression ratio and decompression speed.
@@ -165,6 +166,7 @@
 config KERNEL_BZIP2
 	bool "Bzip2"
 	depends on HAVE_KERNEL_BZIP2
+	select DECOMPRESS_BZIP2
 	help
 	  Its compression ratio and speed is intermediate.
 	  Decompression speed is slowest among the three.  The kernel
@@ -175,6 +177,7 @@
 config KERNEL_LZMA
 	bool "LZMA"
 	depends on HAVE_KERNEL_LZMA
+	select DECOMPRESS_LZMA
 	help
 	  The most recent compression algorithm.
 	  Its ratio is best, decompression speed is between the other
@@ -184,6 +187,7 @@
 config KERNEL_LZO
 	bool "LZO"
 	depends on HAVE_KERNEL_LZO
+	select DECOMPRESS_LZO
 	help
 	  Its compression ratio is the poorest among the 4. The kernel
 	  size is about 10% bigger than gzip; however its speed