fix brcm targets. add LZMA and flashmap code patches.

* add support for Linksys WRT54GS

the automatic rflash size recognition is still open.

3 files changed, 263 insertions, 81 deletions

diff --git a/target/linux/patches/2.6.37/brcm.patch b/target/linux/patches/2.6.37/brcm.patch
index 10a9a4947..6ce7fc3c8 100644
--- a/target/linux/patches/2.6.37/brcm.patch
+++ b/target/linux/patches/2.6.37/brcm.patch
@@ -1,14 +1,55 @@
---- linux-2.6.36.orig/arch/mips/bcm47xx/Makefile	2010-10-20 22:30:22.000000000 +0200
-+++ linux-2.6.36/arch/mips/bcm47xx/Makefile	2010-12-22 16:39:15.000000000 +0100
+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	2011-01-19 22:45:48.000000000 +0100
+@@ -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	2011-01-19 22:48:04.000000000 +0100
+@@ -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/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	2011-01-19 22:45:43.000000000 +0100
 @@ -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
---- /dev/null	Fri Jan  7 17:21:57 2011
-+++ linux-2.6.36/arch/mips/bcm47xx/platform.c	Fri Jan  7 17:21:42 2011
-@@ -0,0 +1,147 @@
+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	2011-01-19 22:45:57.000000000 +0100
+@@ -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
@@ -109,16 +150,8 @@
 +	trx_hdr = (void *)KSEG1ADDR(mcore->flash_window + 0x40000);
 +
 +	/* devices might have 2, 4 or 8 MB flash size */
-+#ifdef BCM47XX_OVERRIDE_FLASHSIZE
-+	flash_size = BCM47XX_OVERRIDE_FLASHSIZE;
-+	mcore->flash_window_size = flash_size;
-+#define BCM47XX_OVERRODE_FLASHSIZE " (overridden)"
-+#else
 +	flash_size = mcore->flash_window_size;
-+#define BCM47XX_OVERRODE_FLASHSIZE ""
-+#endif
-+	printk(KERN_INFO "FLASH SIZE%s: %x\n", BCM47XX_OVERRODE_FLASHSIZE,
-+	    flash_size);
++	printk(KERN_INFO "FLASH SIZE: 0x%x\n", flash_size);
 +
 +	left = flash_size - 0x40000;
 +	posn = flash_size;
@@ -156,9 +189,161 @@
 +}
 +
 +device_initcall(bcm47xx_register_devices);
---- linux-2.6.36.orig/drivers/ssb/driver_mipscore.c	2010-10-20 22:30:22.000000000 +0200
-+++ linux-2.6.36/drivers/ssb/driver_mipscore.c	2010-12-22 16:38:53.000000000 +0100
-@@ -193,7 +193,7 @@
+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	2011-01-19 23:21:26.000000000 +0100
+@@ -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
++
++vmlinuz.elf: arch/mips/boot/compressed/selfreloc.o arch/mips/boot/compressed/selfreloc.lds
++	$(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.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	2011-01-19 22:45:57.000000000 +0100
+@@ -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/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	2011-01-19 22:45:48.000000000 +0100
+@@ -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/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	2011-01-19 22:45:48.000000000 +0100
+@@ -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/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	2011-01-19 22:45:57.000000000 +0100
+@@ -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;
@@ -167,3 +352,38 @@
  		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	2011-01-19 22:45:48.000000000 +0100
+@@ -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
diff --git a/target/linux/patches/2.6.37/mtd-root.patch b/target/linux/patches/2.6.37/mtd-root.patch
deleted file mode 100644
index ecb9a696b..000000000
--- a/target/linux/patches/2.6.37/mtd-root.patch
+++ /dev/null
@@ -1,64 +0,0 @@
-diff -Nur linux-2.6.37.orig/drivers/mtd/Kconfig linux-2.6.37/drivers/mtd/Kconfig
---- linux-2.6.37.orig/drivers/mtd/Kconfig	2011-01-05 01:50:19.000000000 +0100
-+++ linux-2.6.37/drivers/mtd/Kconfig	2011-01-11 20:32:21.000000000 +0100
-@@ -53,6 +53,11 @@
- 	  devices. Partitioning on NFTL 'devices' is a different - that's the
- 	  'normal' form of partitioning used on a block device.
- 
-+config MTD_ROOTFS_ROOT_DEV
-+	bool "Automatically set 'rootfs' partition to be root filesystem"
-+	depends on MTD_PARTITIONS
-+	default y
-+
- config MTD_REDBOOT_PARTS
- 	tristate "RedBoot partition table parsing"
- 	depends on MTD_PARTITIONS
-diff -Nur linux-2.6.37.orig/drivers/mtd/mtdpart.c linux-2.6.37/drivers/mtd/mtdpart.c
---- linux-2.6.37.orig/drivers/mtd/mtdpart.c	2011-01-05 01:50:19.000000000 +0100
-+++ linux-2.6.37/drivers/mtd/mtdpart.c	2011-01-11 20:40:29.000000000 +0100
-@@ -30,6 +30,7 @@
- #include <linux/mtd/mtd.h>
- #include <linux/mtd/partitions.h>
- #include <linux/err.h>
-+#include <linux/root_dev.h>
- 
- /* Our partition linked list */
- static LIST_HEAD(mtd_partitions);
-@@ -48,7 +49,7 @@
-  * the pointer to that structure with this macro.
-  */
- #define PART(x)  ((struct mtd_part *)(x))
--
-+#define IS_PART(mtd) (mtd->read == part_read)
- 
- /*
-  * MTD methods which simply translate the effective address and pass through
-@@ -633,15 +634,24 @@
- {
- 	struct mtd_part *slave;
- 	uint64_t cur_offset = 0;
--	int i;
-+	int i, j;
- 
- 	printk(KERN_NOTICE "Creating %d MTD partitions on \"%s\":\n", nbparts, master->name);
- 
--	for (i = 0; i < nbparts; i++) {
--		slave = allocate_partition(master, parts + i, i, cur_offset);
--		if (IS_ERR(slave))
-+	for (i = 0, j = 0; i < nbparts; i++) {
-+		slave = add_one_partition(master, parts + i, j++, cur_offset);
-+		if (!(slave))
- 			return PTR_ERR(slave);
- 
-+		
-+		if (!strcmp(parts[i].name, "rootfs")) {
-+#ifdef CONFIG_MTD_ROOTFS_ROOT_DEV
-+			if (ROOT_DEV == 0) {
-+				printk(KERN_NOTICE "mtd: partition \"rootfs\" "
-+					"set to be root filesystem\n");
-+					ROOT_DEV = MKDEV(MTD_BLOCK_MAJOR, slave->mtd.index);
-+			}
-+#endif
- 		mutex_lock(&mtd_partitions_mutex);
- 		list_add(&slave->list, &mtd_partitions);
- 		mutex_unlock(&mtd_partitions_mutex);
diff --git a/target/linux/patches/2.6.37/mtd-rootfs.patch b/target/linux/patches/2.6.37/mtd-rootfs.patch
new file mode 100644
index 000000000..74a94ff7e
--- /dev/null
+++ b/target/linux/patches/2.6.37/mtd-rootfs.patch
@@ -0,0 +1,26 @@
+diff -Nur linux-2.6.37.orig/drivers/mtd/mtdpart.c linux-2.6.37/drivers/mtd/mtdpart.c
+--- linux-2.6.37.orig/drivers/mtd/mtdpart.c	2011-01-05 01:50:19.000000000 +0100
++++ linux-2.6.37/drivers/mtd/mtdpart.c	2011-01-18 00:23:32.000000000 +0100
+@@ -30,6 +30,7 @@
+ #include <linux/mtd/mtd.h>
+ #include <linux/mtd/partitions.h>
+ #include <linux/err.h>
++#include <linux/root_dev.h>
+ 
+ /* Our partition linked list */
+ static LIST_HEAD(mtd_partitions);
+@@ -642,6 +643,14 @@
+ 		if (IS_ERR(slave))
+ 			return PTR_ERR(slave);
+ 
++		if (!strcmp(parts[i].name, "rootfs")) {
++			if (ROOT_DEV == 0) {
++				printk(KERN_NOTICE "mtd: partition \"rootfs\" "
++					"set to be root filesystem\n");
++					ROOT_DEV = MKDEV(MTD_BLOCK_MAJOR, slave->mtd.index);
++			}
++		}
++
+ 		mutex_lock(&mtd_partitions_mutex);
+ 		list_add(&slave->list, &mtd_partitions);
+ 		mutex_unlock(&mtd_partitions_mutex);