[etrax] Initial kernel support for 2.6.28.4

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@14446 3c298f89-4303-0410-b956-a3cf2f4a3e73

3 files changed, 202 insertions, 0 deletions

diff --git a/target/linux/etrax/patches-2.6.28/100-compile-fixes.patch b/target/linux/etrax/patches-2.6.28/100-compile-fixes.patch
new file mode 100644
index 000000000..ac448be60
--- /dev/null
+++ b/target/linux/etrax/patches-2.6.28/100-compile-fixes.patch
@@ -0,0 +1,97 @@
+Index: linux-2.6.28/arch/cris/Makefile
+===================================================================
+--- linux-2.6.28.orig/arch/cris/Makefile	2008-12-25 00:26:37.000000000 +0100
++++ linux-2.6.28/arch/cris/Makefile	2009-01-09 22:52:39.000000000 +0100
+@@ -40,7 +40,7 @@
+ 
+ LD = $(CROSS_COMPILE)ld -mcrislinux
+ 
+-OBJCOPYFLAGS := -O binary -R .note -R .comment -S
++OBJCOPYFLAGS := -O binary -R .bss -R .note -R .note.gnu.build-id -R .comment -S
+ 
+ CPPFLAGS_vmlinux.lds = -DDRAM_VIRTUAL_BASE=0x$(CONFIG_ETRAX_DRAM_VIRTUAL_BASE)
+ 
+Index: linux-2.6.28/arch/cris/arch-v10/boot/Makefile
+===================================================================
+--- linux-2.6.28.orig/arch/cris/arch-v10/boot/Makefile	2008-12-25 00:26:37.000000000 +0100
++++ linux-2.6.28/arch/cris/arch-v10/boot/Makefile	2009-01-09 22:52:39.000000000 +0100
+@@ -13,7 +13,6 @@
+ 
+ $(obj)/compressed/vmlinux: $(obj)/Image FORCE
+ 	$(Q)$(MAKE) $(build)=$(obj)/compressed $@
+-	$(Q)$(MAKE) $(build)=$(obj)/rescue $(obj)/rescue/rescue.bin
+ 
+ $(obj)/zImage:  $(obj)/compressed/vmlinux
+ 	@cp $< $@
+Index: linux-2.6.28/arch/cris/arch-v10/boot/compressed/misc.c
+===================================================================
+--- linux-2.6.28.orig/arch/cris/arch-v10/boot/compressed/misc.c	2008-12-25 00:26:37.000000000 +0100
++++ linux-2.6.28/arch/cris/arch-v10/boot/compressed/misc.c	2009-01-10 18:00:45.000000000 +0100
+@@ -5,7 +5,7 @@
+  * adapted for Linux.
+  *
+  * malloc by Hannu Savolainen 1993 and Matthias Urlichs 1994
+- * puts by Nick Holloway 1993, better puts by Martin Mares 1995
++ * putstr by Nick Holloway 1993, better putstr by Martin Mares 1995
+  * adaptation for Linux/CRIS Axis Communications AB, 1999
+  *
+  */
+@@ -102,7 +102,6 @@
+ static long bytes_out = 0;
+ static uch *output_data;
+ static unsigned long output_ptr = 0;
+-static void puts(const char *);
+ 
+ /* the "heap" is put directly after the BSS ends, at end */
+ 
+@@ -115,7 +114,7 @@
+ /* decompressor info and error messages to serial console */
+ 
+ static void
+-puts(const char *s)
++putstr(const char *s)
+ {
+ #ifndef CONFIG_ETRAX_DEBUG_PORT_NULL
+ 	while (*s) {
+@@ -188,9 +187,9 @@
+ 
+ static void error(char *x)
+ {
+-	puts("\n\n");
+-	puts(x);
+-	puts("\n\n -- System halted\n");
++	putstr("\n\n");
++	putstr(x);
++	putstr("\n\n -- System halted\n");
+ 
+ 	while (1);	/* Halt */
+ }
+@@ -236,11 +235,11 @@
+ 
+ 	__asm__ volatile ("move $vr,%0" : "=rm" (revision));
+ 	if (revision < 10) {
+-		puts("You need an ETRAX 100LX to run linux 2.6\n");
++		putstr("You need an ETRAX 100LX to run linux 2.6\n");
+ 		while (1);
+ 	}
+ 
+-	puts("Uncompressing Linux...\n");
++	putstr("Uncompressing Linux...\n");
+ 	gunzip();
+-	puts("Done. Now booting the kernel.\n");
++	putstr("Done. Now booting the kernel.\n");
+ }
+Index: linux-2.6.28/arch/cris/arch-v10/mm/init.c
+===================================================================
+--- linux-2.6.28.orig/arch/cris/arch-v10/mm/init.c	2008-12-25 00:26:37.000000000 +0100
++++ linux-2.6.28/arch/cris/arch-v10/mm/init.c	2009-01-09 22:52:39.000000000 +0100
+@@ -184,6 +184,9 @@
+ 
+ 	free_area_init_node(0, zones_size, PAGE_OFFSET >> PAGE_SHIFT, 0);
+ }
++void free_initrd_mem(unsigned long start, unsigned long end)
++{
++}
+ 
+ /* Initialize remaps of some I/O-ports. It is important that this
+  * is called before any driver is initialized.
diff --git a/target/linux/etrax/patches-2.6.28/200-samsung_flash.patch b/target/linux/etrax/patches-2.6.28/200-samsung_flash.patch
new file mode 100644
index 000000000..5df6590fa
--- /dev/null
+++ b/target/linux/etrax/patches-2.6.28/200-samsung_flash.patch
@@ -0,0 +1,13 @@
+Index: linux-2.6.28.2/drivers/mtd/chips/cfi_cmdset_0002.c
+===================================================================
+--- linux-2.6.28.2.orig/drivers/mtd/chips/cfi_cmdset_0002.c	2009-02-04 13:42:19.000000000 +0100
++++ linux-2.6.28.2/drivers/mtd/chips/cfi_cmdset_0002.c	2009-02-04 13:44:11.000000000 +0100
+@@ -364,7 +364,7 @@
+ 			return NULL;
+ 		}
+ 
+-		if (extp->MajorVersion != '1' ||
++		if (extp->MajorVersion < '1' || extp->MajorVersion > '3' ||
+ 		    (extp->MinorVersion < '0' || extp->MinorVersion > '4')) {
+ 		        if (cfi->mfr == MANUFACTURER_SAMSUNG &&
+ 			    (extp->MajorVersion == '3' && extp->MinorVersion == '3')) {
diff --git a/target/linux/etrax/patches-2.6.28/201-flashsize.patch b/target/linux/etrax/patches-2.6.28/201-flashsize.patch
new file mode 100644
index 000000000..e825acf1f
--- /dev/null
+++ b/target/linux/etrax/patches-2.6.28/201-flashsize.patch
@@ -0,0 +1,92 @@
+Index: linux-2.6.28.2/arch/cris/arch-v10/drivers/axisflashmap.c
+===================================================================
+--- linux-2.6.28.2.orig/arch/cris/arch-v10/drivers/axisflashmap.c	2009-02-04 13:49:34.000000000 +0100
++++ linux-2.6.28.2/arch/cris/arch-v10/drivers/axisflashmap.c	2009-02-04 13:55:30.000000000 +0100
+@@ -113,7 +113,7 @@
+ 
+ /* If no partition-table was found, we use this default-set. */
+ #define MAX_PARTITIONS         7
+-#define NUM_DEFAULT_PARTITIONS 3
++#define NUM_DEFAULT_PARTITIONS 2
+ 
+ /*
+  * Default flash size is 2MB. CONFIG_ETRAX_PTABLE_SECTOR is most likely the
+@@ -122,19 +122,14 @@
+  */
+ static struct mtd_partition axis_default_partitions[NUM_DEFAULT_PARTITIONS] = {
+ 	{
+-		.name = "boot firmware",
+-		.size = CONFIG_ETRAX_PTABLE_SECTOR,
+-		.offset = 0
+-	},
+-	{
+ 		.name = "kernel",
+-		.size = 0x200000 - (6 * CONFIG_ETRAX_PTABLE_SECTOR),
+-		.offset = CONFIG_ETRAX_PTABLE_SECTOR
++		.size = 0x00,
++		.offset = 0
+ 	},
+ 	{
+-		.name = "filesystem",
+-		.size = 5 * CONFIG_ETRAX_PTABLE_SECTOR,
+-		.offset = 0x200000 - (5 * CONFIG_ETRAX_PTABLE_SECTOR)
++		.name = "rootfs",
++		.size = 0x200000,
++		.offset = 0x200000
+ 	}
+ };
+ 
+@@ -281,6 +276,11 @@
+ 	struct partitiontable_entry *ptable;
+ 	int use_default_ptable = 1; /* Until proven otherwise. */
+ 	const char pmsg[] = "  /dev/flash%d at 0x%08x, size 0x%08x\n";
++	unsigned int kernel_part_size = 0;
++	unsigned char *flash_mem = (unsigned char*)(FLASH_CACHED_ADDR);
++	unsigned int flash_scan_count = 0;
++	const char *part_magic = "ACME_PART_MAGIC";
++	unsigned int magic_len = strlen(part_magic);
+ 
+ 	if (!(mymtd = flash_probe())) {
+ 		/* There's no reason to use this module if no flash chip can
+@@ -293,6 +293,31 @@
+ 		axisflash_mtd = mymtd;
+ 	}
+ 
++	/* scan flash to findout where out partition starts */
++	
++	printk(KERN_INFO "Scanning flash for end of kernel magic\n");
++	for(flash_scan_count = 0; flash_scan_count < 100000; flash_scan_count++) {
++		if(strncmp(&flash_mem[flash_scan_count], part_magic, magic_len - 1) == 0) {
++			kernel_part_size = flash_mem[flash_scan_count + magic_len ];
++			kernel_part_size <<= 8;
++			kernel_part_size += flash_mem[flash_scan_count + magic_len + 2];
++			kernel_part_size <<= 8;
++			kernel_part_size += flash_mem[flash_scan_count + magic_len + 1];
++			kernel_part_size <<= 8;
++			kernel_part_size += flash_mem[flash_scan_count + magic_len + 3];
++			printk(KERN_INFO "Kernel ends at 0x%.08X\n", kernel_part_size);
++			flash_scan_count = 1100000;
++		}
++	}
++	
++	
++	if(kernel_part_size){
++		kernel_part_size = (kernel_part_size & 0xffff0000);
++		axis_default_partitions[0].size = kernel_part_size;
++		axis_default_partitions[1].size =  mymtd->size - axis_default_partitions[0].size;
++		axis_default_partitions[1].offset = axis_default_partitions[0].size;
++	}
++
+ 	if (mymtd) {
+ 		mymtd->owner = THIS_MODULE;
+ 		ptable_head = (struct partitiontable_head *)(FLASH_CACHED_ADDR +
+Index: linux-2.6.28.2/arch/cris/arch-v10/lib/hw_settings.S
+===================================================================
+--- linux-2.6.28.2.orig/arch/cris/arch-v10/lib/hw_settings.S	2009-02-04 13:48:25.000000000 +0100
++++ linux-2.6.28.2/arch/cris/arch-v10/lib/hw_settings.S	2009-02-04 13:49:04.000000000 +0100
+@@ -60,3 +60,5 @@
+ 	.dword R_PORT_PB_SET
+ 	.dword PB_SET_VALUE
+ 	.dword 0 ; No more register values
++	.ascii "ACME_PART_MAGIC" 
++	.dword 0xdeadc0de