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Code

add trx detection to the flash map

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk/openwrt@1240 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
nbd 2005-06-14 19:58:37 +00:00
parent b8bdd8cd91
commit 0da6b448eb
1 changed files with 72 additions and 12 deletions
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84
target/linux/linux-2.4/patches/ar7/001-flash_map.patch
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@ -36,8 +36,8 @@ diff -urN linux-2.4.30/drivers/mtd/maps/Makefile linux-2.4.30.dev/drivers/mtd/ma
obj-$(CONFIG_MTD_CFI_FLAGADM) += cfi_flagadm.o
diff -urN linux-2.4.30/drivers/mtd/maps/ar7-flash.c linux-2.4.30.dev/drivers/mtd/maps/ar7-flash.c
--- linux-2.4.30/drivers/mtd/maps/ar7-flash.c 1970-01-01 01:00:00.000000000 +0100
+++ linux-2.4.30.dev/drivers/mtd/maps/ar7-flash.c 2005-06-14 19:38:19.000000000 +0200
@@ -0,0 +1,218 @@
+++ linux-2.4.30.dev/drivers/mtd/maps/ar7-flash.c 2005-06-14 22:42:23.000000000 +0200
@@ -0,0 +1,245 @@
+/*
+ * $Id$
+ *
@ -52,6 +52,7 @@ diff -urN linux-2.4.30/drivers/mtd/maps/ar7-flash.c linux-2.4.30.dev/drivers/mtd
+#include <linux/mtd/map.h>
+#include <linux/config.h>
+#include <linux/mtd/partitions.h>
+#include "trxhdr.h"
+
+#define WINDOW_ADDR CONFIG_MTD_AVALANCHE_START
+#define WINDOW_SIZE CONFIG_MTD_AVALANCHE_LEN
@ -176,6 +177,7 @@ diff -urN linux-2.4.30/drivers/mtd/maps/ar7-flash.c linux-2.4.30.dev/drivers/mtd
+ unsigned int found;
+ unsigned char *flash_base;
+ unsigned char *flash_end;
+ struct trx_header hdr;
+ char *env_ptr;
+ char *base_ptr;
+ char *end_ptr;
@ -215,19 +217,44 @@ diff -urN linux-2.4.30/drivers/mtd/maps/ar7-flash.c linux-2.4.30.dev/drivers/mtd
+ printk("Found a %s image (0x%x), with size (0x%x).\n",env_name, offset, size);
+
+ /* Setup the partition info. We duplicate the env_name for the partiton name */
+ if (num_of_partitions == 0)
+ avalanche_partition_info[num_of_partitions].name = strdup("linux");
+ else if (num_of_partitions == 1)
+ avalanche_partition_info[num_of_partitions].name = strdup("rootfs");
+ else if (num_of_partitions == 2)
+ avalanche_partition_info[num_of_partitions].name = strdup("adam2");
+ else if (num_of_partitions == 3)
+ avalanche_partition_info[num_of_partitions].name = strdup("config");
+ else
+ avalanche_partition_info[num_of_partitions].name = strdup(env_name);
+ avalanche_partition_info[num_of_partitions].offset = offset;
+ avalanche_partition_info[num_of_partitions].size = size;
+ avalanche_partition_info[num_of_partitions].mask_flags = 0;
+
+ switch (num_of_partitions ) {
+ case 0:
+ avalanche_partition_info[num_of_partitions].name = strdup("rootfs");
+ avalanche_copy_from(&avalanche_map, &hdr, offset, sizeof(hdr));
+ if (hdr.magic == TRX_MAGIC) {
+ printk("TRX partition detected. First offset: %08x\n", hdr.offsets[0]);
+ avalanche_partition_info[num_of_partitions].offset += hdr.offsets[0];
+ avalanche_partition_info[num_of_partitions].size -= hdr.offsets[0];
+ } else {
+ printk("No TRX partition detected\n");
+ }
+ break;
+
+ case 1:
+ avalanche_partition_info[num_of_partitions].name = strdup("linux");
+ break;
+
+ case 2:
+ avalanche_partition_info[num_of_partitions].name = strdup("adam2");
+ break;
+
+ case 3:
+ avalanche_partition_info[num_of_partitions].name = strdup("config");
+ break;
+
+ case 4:
+ avalanche_partition_info[num_of_partitions].name = strdup("firmware");
+ break;
+
+ default:
+ avalanche_partition_info[num_of_partitions].name = strdup(env_name);
+ break;
+ }
+
+ num_of_partitions++;
+ } while (num_of_partitions < MAX_NUM_PARTITIONS);
+
@ -256,3 +283,36 @@ diff -urN linux-2.4.30/drivers/mtd/maps/ar7-flash.c linux-2.4.30.dev/drivers/mtd
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Snehaprabha Narnakaje");
+MODULE_DESCRIPTION("Avalanche CFI map driver");
diff -urN linux-2.4.30/drivers/mtd/maps/trxhdr.h linux-2.4.30.dev/drivers/mtd/maps/trxhdr.h
--- linux-2.4.30/drivers/mtd/maps/trxhdr.h 1970-01-01 01:00:00.000000000 +0100
+++ linux-2.4.30.dev/drivers/mtd/maps/trxhdr.h 2005-06-14 21:57:04.000000000 +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 */
+};