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git://projects.qi-hardware.com/openwrt-xburst.git
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add new flash map driver, some minor system code cleanup
git-svn-id: svn://svn.openwrt.org/openwrt/trunk/openwrt@2564 3c298f89-4303-0410-b956-a3cf2f4a3e73
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Load Diff
@ -1,34 +1,7 @@
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diff -Nur linux-2.6.12.5/drivers/mtd/maps/Kconfig linux-2.6.12.5-flash/drivers/mtd/maps/Kconfig
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--- linux-2.6.12.5/drivers/mtd/maps/Kconfig 2005-08-15 02:20:18.000000000 +0200
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+++ linux-2.6.12.5-flash/drivers/mtd/maps/Kconfig 2005-09-16 22:27:36.513533784 +0200
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@@ -357,6 +357,12 @@
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Mapping for the Flaga digital module. If you don't have one, ignore
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this setting.
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+config MTD_BCM47XX
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+ tristate "BCM47xx flash device"
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+ depends on MIPS && MTD_CFI && BCM947XX
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+ help
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+ Support for the flash chips on the BCM947xx board.
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+
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config MTD_BEECH
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tristate "CFI Flash device mapped on IBM 405LP Beech"
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depends on MTD_CFI && PPC32 && 40x && BEECH
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diff -Nur linux-2.6.12.5/drivers/mtd/maps/Makefile linux-2.6.12.5-flash/drivers/mtd/maps/Makefile
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--- linux-2.6.12.5/drivers/mtd/maps/Makefile 2005-08-15 02:20:18.000000000 +0200
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+++ linux-2.6.12.5-flash/drivers/mtd/maps/Makefile 2005-09-16 22:27:01.110915800 +0200
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@@ -31,6 +31,7 @@
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obj-$(CONFIG_MTD_PCMCIA) += pcmciamtd.o
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obj-$(CONFIG_MTD_RPXLITE) += rpxlite.o
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obj-$(CONFIG_MTD_TQM8XXL) += tqm8xxl.o
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+obj-$(CONFIG_MTD_BCM47XX) += bcm47xx-flash.o
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obj-$(CONFIG_MTD_SA1100) += sa1100-flash.o
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obj-$(CONFIG_MTD_IPAQ) += ipaq-flash.o
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obj-$(CONFIG_MTD_SBC_GXX) += sbc_gxx.o
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diff -Nur linux-2.6.12.5/drivers/mtd/maps/bcm47xx-flash.c linux-2.6.12.5-flash/drivers/mtd/maps/bcm47xx-flash.c
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--- linux-2.6.12.5/drivers/mtd/maps/bcm47xx-flash.c 1970-01-01 01:00:00.000000000 +0100
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+++ linux-2.6.12.5-flash/drivers/mtd/maps/bcm47xx-flash.c 2005-09-16 22:26:41.470901536 +0200
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@@ -0,0 +1,249 @@
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+++ linux-2.6.12.5-flash/drivers/mtd/maps/bcm47xx-flash.c 2005-11-06 20:36:42.553198500 +0100
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@@ -0,0 +1,329 @@
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+/*
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+ * Copyright (C) 2004 Florian Schirmer (jolt@tuxbox.org)
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+ * Copyright (C) 2005 Waldemar Brodkorb <wbx@openwrt.org>
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@ -63,7 +36,7 @@ diff -Nur linux-2.6.12.5/drivers/mtd/maps/bcm47xx-flash.c linux-2.6.12.5-flash/d
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+ * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
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+ * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
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+ *
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+ * $Id$
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+ * $Id: bcm47xx-flash.c,v 1.1 2004/10/21 07:18:31 jolt Exp $
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+ *
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+ * Flash mapping for BCM947XX boards
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+ */
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@ -82,13 +55,11 @@ diff -Nur linux-2.6.12.5/drivers/mtd/maps/bcm47xx-flash.c linux-2.6.12.5-flash/d
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+#include <bcmnvram.h>
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+#include <trxhdr.h>
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+
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+
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+#ifdef CONFIG_MTD_PARTITIONS
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+extern struct mtd_partition * init_mtd_partitions(struct mtd_info *mtd, size_t size);
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+#endif
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+
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+#define CFE_SIZE 1024*384
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+#define NVRAM_SIZE 1024*128
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+
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+#define WINDOW_ADDR 0x1c000000
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+#define WINDOW_SIZE (0x400000*2)
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+#define BUSWIDTH 2
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@ -134,6 +105,47 @@ diff -Nur linux-2.6.12.5/drivers/mtd/maps/bcm47xx-flash.c linux-2.6.12.5-flash/d
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+};
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+
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+static int __init
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+find_cfe_size(struct mtd_info *mtd, size_t size)
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+{
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+ struct trx_header *trx;
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+ unsigned char buf[512];
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+ int off;
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+ size_t len;
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+ int cfe_size_flag;
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+
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+ trx = (struct trx_header *) buf;
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+
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+ cfe_size_flag=0;
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+
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+ for (off = (256*1024); off < size; off += mtd->erasesize) {
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+ memset(buf, 0xe5, sizeof(buf));
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+
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+ /*
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+ * Read into buffer
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+ */
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+ if (MTD_READ(mtd, off, sizeof(buf), &len, buf) ||
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+ len != sizeof(buf))
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+ continue;
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+
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+ /* found a TRX header */
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+ if (le32_to_cpu(trx->magic) == TRX_MAGIC) {
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+ goto done;
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+ }
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+ cfe_size_flag += 1;
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+ }
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+
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+ printk(KERN_NOTICE
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+ "%s: Couldn't find bootloader size\n",
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+ mtd->name);
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+ return -1;
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+
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+ done:
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+ printk(KERN_NOTICE "bootloader size flag: %d\n", cfe_size_flag);
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+ return cfe_size_flag;
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+
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+}
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+
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+static int __init
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+find_root(struct mtd_info *mtd, size_t size, struct mtd_partition *part)
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+{
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+ struct trx_header *trx;
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@ -172,41 +184,82 @@ diff -Nur linux-2.6.12.5/drivers/mtd/maps/bcm47xx-flash.c linux-2.6.12.5-flash/d
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+ return -1;
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+
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+ done:
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+ return part->size;
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+ return part->size;
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+}
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+
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+struct mtd_partition * __init
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+init_mtd_partitions(struct mtd_info *mtd, size_t size)
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+{
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+
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+ int cfe_size_flag;
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+
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+ cfe_size_flag = find_cfe_size(mtd,size);
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+
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+ /* if cfe_size_flag=0, cfe size is 256 kb, else 384 kb */
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+
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+ /* boot loader */
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+ bcm947xx_parts[0].offset = 0;
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+ bcm947xx_parts[0].size = CFE_SIZE;
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+ if (cfe_size_flag == 0) {
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+ bcm947xx_parts[0].size = 1024*256;
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+ } else {
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+ /* netgear wgt634u has 384 kb bootloader */
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+ bcm947xx_parts[0].size = 1024*384;
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+ }
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+
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+ /* nvram (old config partition) */
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+ bcm947xx_parts[3].offset = bcm947xx_parts[0].size;
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+ bcm947xx_parts[3].size = NVRAM_SIZE;
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+ /* nvram */
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+ if (cfe_size_flag == 0) {
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+ bcm947xx_parts[3].offset = size - mtd->erasesize;
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+ bcm947xx_parts[3].size = mtd->erasesize;
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+ } else {
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+ /* nvram (old 128kb config partition on netgear wgt634u) */
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+ bcm947xx_parts[3].offset = bcm947xx_parts[0].size;
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+ bcm947xx_parts[3].size = 1024*128;
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+ }
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+
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+ /* Size linux (kernel and rootfs) */
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+ /* do not count the elf loader, which is on one sector */
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+ bcm947xx_parts[1].offset = bcm947xx_parts[0].size + bcm947xx_parts[3].size + mtd->erasesize;
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+ bcm947xx_parts[1].size = size - NVRAM_SIZE - bcm947xx_parts[0].size -
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+ bcm947xx_parts[3].size - mtd->erasesize;
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+ /* linux (kernel and rootfs) */
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+ if (cfe_size_flag == 0) {
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+ bcm947xx_parts[1].offset = bcm947xx_parts[0].size;
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+ bcm947xx_parts[1].size = bcm947xx_parts[3].offset -
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+ bcm947xx_parts[1].offset;
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+ } else {
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+ /* do not count the elf loader, which is on one sector */
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+ bcm947xx_parts[1].offset = bcm947xx_parts[0].size +
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+ bcm947xx_parts[3].size + mtd->erasesize;
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+ bcm947xx_parts[1].size = size -
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+ bcm947xx_parts[0].size -
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+ (2*bcm947xx_parts[3].size) -
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+ mtd->erasesize;
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+ }
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+
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+ /* Find and size rootfs */
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+ /* find and size rootfs */
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+ if (find_root(mtd,size,&bcm947xx_parts[2])==0) {
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+ /* entirely jffs2 */
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+ bcm947xx_parts[2].size = size - bcm947xx_parts[2].offset - NVRAM_SIZE;
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+ bcm947xx_parts[4].name = NULL;
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+ if (cfe_size_flag == 0) {
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+ bcm947xx_parts[2].size = bcm947xx_parts[3].offset -
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+ bcm947xx_parts[2].offset;
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+ } else {
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+ bcm947xx_parts[2].size = size - bcm947xx_parts[2].offset -
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+ bcm947xx_parts[3].size;
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+ }
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+ } else {
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+ /* legacy setup */
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+ /* calculate leftover flash, and assign it to the jffs2 partition */
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+ bcm947xx_parts[4].offset = bcm947xx_parts[2].offset + bcm947xx_parts[2].size;
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+ if ((bcm947xx_parts[4].offset % mtd->erasesize) > 0) {
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+ bcm947xx_parts[4].offset += mtd->erasesize -
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+ (bcm947xx_parts[4].offset % mtd->erasesize);
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+ if (cfe_size_flag == 0) {
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+ bcm947xx_parts[4].offset = bcm947xx_parts[2].offset +
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+ bcm947xx_parts[2].size;
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+ bcm947xx_parts[4].size = bcm947xx_parts[3].offset -
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+ bcm947xx_parts[4].offset;
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+ } else {
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+ bcm947xx_parts[4].offset = bcm947xx_parts[2].offset +
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+ bcm947xx_parts[2].size;
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+ if ((bcm947xx_parts[4].offset % mtd->erasesize) > 0) {
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+ bcm947xx_parts[4].offset += mtd->erasesize -
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+ (bcm947xx_parts[4].offset % mtd->erasesize);
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+ }
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+ bcm947xx_parts[4].size = size - bcm947xx_parts[3].size -
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+ bcm947xx_parts[4].offset;
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+ }
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+ bcm947xx_parts[4].size = size - NVRAM_SIZE - bcm947xx_parts[4].offset;
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+ }
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+
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+ return bcm947xx_parts;
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@ -278,3 +331,30 @@ diff -Nur linux-2.6.12.5/drivers/mtd/maps/bcm47xx-flash.c linux-2.6.12.5-flash/d
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+
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+module_init(init_bcm947xx_map);
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+module_exit(cleanup_bcm947xx_map);
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diff -Nur linux-2.6.12.5/drivers/mtd/maps/Kconfig linux-2.6.12.5-flash/drivers/mtd/maps/Kconfig
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--- linux-2.6.12.5/drivers/mtd/maps/Kconfig 2005-08-15 02:20:18.000000000 +0200
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+++ linux-2.6.12.5-flash/drivers/mtd/maps/Kconfig 2005-09-16 22:27:36.000000000 +0200
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@@ -357,6 +357,12 @@
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Mapping for the Flaga digital module. If you don't have one, ignore
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this setting.
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+config MTD_BCM47XX
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+ tristate "BCM47xx flash device"
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+ depends on MIPS && MTD_CFI && BCM947XX
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+ help
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+ Support for the flash chips on the BCM947xx board.
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+
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config MTD_BEECH
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tristate "CFI Flash device mapped on IBM 405LP Beech"
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depends on MTD_CFI && PPC32 && 40x && BEECH
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diff -Nur linux-2.6.12.5/drivers/mtd/maps/Makefile linux-2.6.12.5-flash/drivers/mtd/maps/Makefile
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--- linux-2.6.12.5/drivers/mtd/maps/Makefile 2005-08-15 02:20:18.000000000 +0200
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+++ linux-2.6.12.5-flash/drivers/mtd/maps/Makefile 2005-09-16 22:27:01.000000000 +0200
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@@ -31,6 +31,7 @@
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obj-$(CONFIG_MTD_PCMCIA) += pcmciamtd.o
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obj-$(CONFIG_MTD_RPXLITE) += rpxlite.o
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obj-$(CONFIG_MTD_TQM8XXL) += tqm8xxl.o
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+obj-$(CONFIG_MTD_BCM47XX) += bcm47xx-flash.o
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obj-$(CONFIG_MTD_SA1100) += sa1100-flash.o
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obj-$(CONFIG_MTD_IPAQ) += ipaq-flash.o
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obj-$(CONFIG_MTD_SBC_GXX) += sbc_gxx.o
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