diff -urN linux.old/drivers/mtd/maps/ar7-flash.c linux.dev/drivers/mtd/maps/ar7-flash.c
--- linux.old/drivers/mtd/maps/ar7-flash.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux.dev/drivers/mtd/maps/ar7-flash.c 2005-07-21 09:01:39.994240680 +0200
-@@ -0,0 +1,272 @@
++++ linux.dev/drivers/mtd/maps/ar7-flash.c 2005-07-22 04:35:26.624453992 +0200
+@@ -0,0 +1,267 @@
+/*
+ * $Id$
+ *
+#include <linux/mtd/map.h>
+#include <linux/config.h>
+#include <linux/mtd/partitions.h>
-+#include "trxhdr.h"
++#include <linux/squashfs_fs.h>
+
+#define WINDOW_ADDR CONFIG_MTD_AR7_START
+#define WINDOW_SIZE CONFIG_MTD_AR7_LEN
+ unsigned int p = 0;
+ unsigned char *flash_base;
+ unsigned char *flash_end;
-+ struct trx_header hdr;
+ char *env_ptr;
+ char *base_ptr;
+ char *end_ptr;
+ if (config_offset > offset)
+ config_offset = offset; // reserved at the end of the flash chip
+ } else if (offset > 0x30000) {
-+ printk("Assuming rootfs offset of 0x%x\n", offset);
++ printk("Assuming default rootfs offset of 0x%x\n", offset);
+ rootfs_start = offset; // probably root fs
+ }
+
+ ar7_partinfo[p].size = config_offset - adam2_size;
+ ar7_partinfo[p++].mask_flags = 0;
+
-+ for (offset = adam2_size; !found && (offset < rootfs_start); offset += 1024) {
-+ if (ar7_read32(&ar7_map, offset) == TRX_MAGIC) {
-+ found = 1;
-+ rootfs_start = offset;
-+ }
++ if (ar7_read32(&ar7_map, adam2_size) == 0xfeedfa42) {
++ rootfs_start = ar7_read32(&ar7_map, adam2_size + 4) + adam2_size + 28;
++ printk("Setting new rootfs offset to %08x\n", rootfs_start);
+ }
+
+ ar7_partinfo[p].name = strdup("rootfs");
+ ar7_partinfo[p].offset = rootfs_start;
+ ar7_partinfo[p].size = config_offset - rootfs_start;
+
-+ ar7_copy_from(&ar7_map, &hdr, rootfs_start, sizeof(hdr));
-+ if (hdr.magic == TRX_MAGIC) {
-+ printk("TRX header in rootfs partition detected.\n");
-+ printk("offset[0] = 0x%05x\n", hdr.offsets[0]);
-+ printk("offset[1] = 0x%05x\n", hdr.offsets[1]);
-+ printk("offset[2] = 0x%05x\n", hdr.offsets[2]);
-+ ar7_partinfo[p].offset += hdr.offsets[0];
-+ ar7_partinfo[p].size -= hdr.offsets[0];
-+ }
-+
+ ar7_partinfo[p++].mask_flags = 0;
+
+ ar7_partinfo[p].name = strdup("config");
+ ar7_partinfo[p].size = WINDOW_SIZE - config_offset;
+ ar7_partinfo[p++].mask_flags = 0;
+
-+ if (ar7_read32(&ar7_map, rootfs_start + hdr.offsets[0]) == 0x73717368) {
-+ int newsize;
-+
-+ printk("Squashfs detected. Adding extra partition\n");
-+ newsize = hdr.len;
-+ if (newsize % ar7_mtd_info->erasesize)
-+ newsize += ar7_mtd_info->erasesize - ((newsize + hdr.offsets[0]) % ar7_mtd_info->erasesize);
++ if (ar7_read32(&ar7_map, rootfs_start) == SQUASHFS_MAGIC) {
++ int newsize, newoffset;
++ squashfs_super_block sb;
++
++ ar7_copy_from(&ar7_map, &sb, rootfs_start, sizeof(sb));
++ printk("Squashfs detected (size = 0x%08x)\n", sb.bytes_used);
+
++ newoffset = rootfs_start + sb.bytes_used;
+
++ if ((newoffset % ar7_mtd_info->erasesize) > 0)
++ newoffset += ar7_mtd_info->erasesize - (newoffset % ar7_mtd_info->erasesize);
++
++ ar7_partinfo[p - 2].size = newoffset - rootfs_start;
++
+ ar7_partinfo[p].name = strdup("OpenWrt");
-+ ar7_partinfo[p].offset = rootfs_start + newsize;
-+ ar7_partinfo[p].size = ar7_partinfo[p - 2].size + hdr.offsets[0] - newsize;
-+ ar7_partinfo[p - 2].size = newsize - hdr.offsets[0];
-+
-+ p++;
++ ar7_partinfo[p].offset = newoffset;
++ ar7_partinfo[p].size = config_offset - newoffset;
++ ar7_partinfo[p++].mask_flags = 0;
++ } else {
++ printk("Unknown filesystem. Moving rootfs partition to next erase block");
++ if ((rootfs_start % ar7_mtd_info->erasesize) > 0) {
++ ar7_partinfo[p - 2].offset += ar7_mtd_info->erasesize - (rootfs_start % ar7_mtd_info->erasesize);
++ ar7_partinfo[p - 2].size -= ar7_mtd_info->erasesize - (rootfs_start % ar7_mtd_info->erasesize);
++ }
+ }
+
-+
+ return p;
+}
+
obj-$(CONFIG_MTD_CDB89712) += cdb89712.o
obj-$(CONFIG_MTD_ARM_INTEGRATOR)+= integrator-flash.o
obj-$(CONFIG_MTD_CFI_FLAGADM) += cfi_flagadm.o
-diff -urN linux.old/drivers/mtd/maps/trxhdr.h linux.dev/drivers/mtd/maps/trxhdr.h
---- linux.old/drivers/mtd/maps/trxhdr.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux.dev/drivers/mtd/maps/trxhdr.h 2005-07-10 20:50:43.550827000 +0200
-@@ -0,0 +1,29 @@
-+/*
-+ * TRX image file header format.
-+ *
-+ * Copyright 2005, Broadcom Corporation
-+ * All Rights Reserved.
-+ *
-+ * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
-+ * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
-+ * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
-+ * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
-+ *
-+ * $Id$
-+ */
-+
-+
-+#define TRX_MAGIC 0x30524448 /* "HDR0" */
-+#define TRX_VERSION 1
-+#define TRX_MAX_LEN 0x3A0000
-+#define TRX_NO_HEADER 1 /* Do not write TRX header */
-+#define TRX_GZ_FILES 0x2 /* Contains up to TRX_MAX_OFFSET individual gzip files */
-+#define TRX_MAX_OFFSET 3
-+
-+struct trx_header {
-+ __u32 magic; /* "HDR0" */
-+ __u32 len; /* Length of file including header */
-+ __u32 crc32; /* 32-bit CRC from flag_version to end of file */
-+ __u32 flag_version; /* 0:15 flags, 16:31 version */
-+ __u32 offsets[TRX_MAX_OFFSET]; /* Offsets of partitions from start of header */
-+};
projects / openwrt.git / blobdiff