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fix magicbox, convert mtd mapping to platform_device, add support for combined flash layout

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SVN-Revision: 7336
This commit is contained in:
Imre Kaloz 2007-05-26 15:36:22 +00:00
parent b62d62a3c4
commit 8f83153369
6 changed files with 62 additions and 154 deletions
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2
target/linux/magicbox-2.6/Makefile
View file

@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
ARCH:=powerpc
BOARD:=magicbox
BOARDNAME:=Magicbox
FEATURES:=jffs2
FEATURES:=squashfs jffs2
include $(INCLUDE_DIR)/kernel-build.mk

9
target/linux/magicbox-2.6/config/default
View file

@ -28,7 +28,7 @@ CONFIG_BLK_DEV_MAGICBOX_IDE=y
CONFIG_BOOT_LOAD=0x00400000
# CONFIG_BT is not set
# CONFIG_BUBINGA is not set
CONFIG_CMDLINE="console=ttyS0,115200 init=/etc/preinit"
CONFIG_CMDLINE="root=/dev/mtdblock1 rootfstype=squashfs,jffs2 noinitrd console=ttyS0,115200 init=/etc/preinit"
CONFIG_CMDLINE_BOOL=y
CONFIG_CONSISTENT_SIZE=0x00200000
CONFIG_CONSISTENT_START=0xff100000
@ -103,7 +103,6 @@ CONFIG_MTD_COMPLEX_MAPPINGS=y
# CONFIG_MTD_DOC2001PLUS is not set
CONFIG_MTD_GEN_PROBE=y
# CONFIG_MTD_JEDECPROBE is not set
CONFIG_MTD_MAGICMAP=y
CONFIG_MTD_MAP_BANK_WIDTH_1=y
# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set
CONFIG_MTD_MAP_BANK_WIDTH_2=y
@ -117,13 +116,17 @@ CONFIG_MTD_MAP_BANK_WIDTH_4=y
CONFIG_MTD_PARTITIONS=y
# CONFIG_MTD_PCI is not set
# CONFIG_MTD_PHRAM is not set
# CONFIG_MTD_PHYSMAP is not set
CONFIG_MTD_PHYSMAP=y
CONFIG_MTD_PHYSMAP_BANKWIDTH=2
CONFIG_MTD_PHYSMAP_LEN=0
CONFIG_MTD_PHYSMAP_START=0xffc00000
# CONFIG_MTD_PLATRAM is not set
# CONFIG_MTD_PMC551 is not set
# CONFIG_MTD_RAM is not set
# CONFIG_MTD_REDBOOT_PARTS is not set
# CONFIG_MTD_ROM is not set
# CONFIG_MTD_SLRAM is not set
CONFIG_MTD_SPLIT_ROOTFS=y
# CONFIG_NATSEMI is not set
# CONFIG_NE2K_PCI is not set
# CONFIG_NET_VENDOR_3COM is not set

47
target/linux/magicbox-2.6/files/arch/ppc/platforms/4xx/magicbox.c
View file

@ -24,6 +24,9 @@
#include <linux/tty.h>
#include <linux/serial.h>
#include <linux/serial_core.h>
#include <linux/platform_device.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/physmap.h>
#include <asm/system.h>
#include <asm/pci-bridge.h>
@ -214,6 +217,50 @@ bios_fixup(struct pci_controller *hose, struct pcil0_regs *pcip)
#endif /* DEBUG */
}
static struct resource magicbox_flash_resource = {
.start = 0xffc00000,
.end = 0xffffffffULL,
.flags = IORESOURCE_MEM,
};
static struct mtd_partition magicbox_flash_parts[] = {
{
.name = "linux",
.offset = 0x0,
.size = 0x3c0000,
},
{
.name = "rootfs",
.offset = 0x100000,
.size = 0x2c0000,
}
};
static struct physmap_flash_data magicbox_flash_data = {
.width = 2,
.parts = magicbox_flash_parts,
.nr_parts = ARRAY_SIZE(magicbox_flash_parts),
};
static struct platform_device magicbox_flash_device = {
.name = "physmap-flash",
.id = 0,
.dev = {
.platform_data = &magicbox_flash_data,
},
.num_resources = 1,
.resource = &magicbox_flash_resource,
};
static int magicbox_setup_flash(void)
{
platform_device_register(&magicbox_flash_device);
return 0;
};
arch_initcall (magicbox_setup_flash);
void __init
magicbox_setup_arch(void)
{

113
target/linux/magicbox-2.6/files/drivers/mtd/maps/magicmap.c
View file

@ -1,113 +0,0 @@
/*
* magicmap.c: Copyleft 2005 Karol Lewandowski
*
* Mapping for MagicBox flash.
* Based on walnut.c.
*
* Heikki Lindholm <holindho@infradead.org>
*
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*/
#include <linux/module.h>
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/map.h>
#include <linux/mtd/partitions.h>
#include <linux/autoconf.h>
#include <asm/io.h>
static struct mtd_info *flash;
static struct map_info magic_map = {
.name = "Magically mapped flash",
.phys = 0xffc00000,
.size = 0x400000,
.bankwidth = 2,
};
static struct mtd_partition magic_partitions[] = {
{
.name = "linux",
.offset = 0x0,
.size = 0x3c0000,
},
{
.name = "rootfs",
.offset = 0x100000,
.size = 0x2c0000,
},
{
.name = "bootloader",
.offset = 0x3c0000,
.size = 0x040000,
.mask_flags = MTD_WRITEABLE,
},
};
int __init init_magic(void)
{
u32 size, len;
magic_map.virt =
(void __iomem *)ioremap(magic_map.phys, magic_map.size);
if (!magic_map.virt) {
printk("Failed to ioremap flash.\n");
return -EIO;
}
simple_map_init(&magic_map);
flash = do_map_probe("cfi_probe", &magic_map);
if (flash) {
flash->owner = THIS_MODULE;
if (flash->read(flash, 12, sizeof(u32), &len, (char *) &size) ||
len != 4)
return -ENXIO;
size += 0x40; /* header size of the uImage */
if (size < 0x400000) {
/* skip to next erase block */
if (size & (flash->erasesize - 1)) {
size |= (flash->erasesize - 1);
size += 1;
}
magic_partitions[1].offset = size;
magic_partitions[1].size = magic_partitions[2].offset - size;
}
add_mtd_partitions(flash, magic_partitions,
ARRAY_SIZE(magic_partitions));
} else {
printk("map probe failed for flash\n");
return -ENXIO;
}
return 0;
}
static void __exit cleanup_magic(void)
{
if (flash) {
del_mtd_partitions(flash);
map_destroy(flash);
}
if (magic_map.virt) {
iounmap((void *)magic_map.virt);
magic_map.virt = NULL;
}
}
module_init(init_magic);
module_exit(cleanup_magic);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Karol Lewandowski");
MODULE_DESCRIPTION("MTD map and partitions for IBM 405EP MagicBox boards");

15
target/linux/magicbox-2.6/image/Makefile
View file

@ -21,16 +21,17 @@ endef
define Image/Build/jffs2-64k
( \
dd if=$(KDIR)/uImage bs=65536 conv=sync; \
dd if=$(KDIR)/uImage bs=1024k conv=sync; \
dd if=$(KDIR)/root.$(1) bs=65536 conv=sync; \
) > $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-$(1).img
endef
#define Image/Build/jffs2-128k
# ( \
# dd if=$(LINUX_DIR)/arch/ppc/boot/images/uImage bs=131072 conv=sync; \
# dd if=$(KDIR)/root.$(1) bs=131072 conv=sync; \
# ) > $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-$(1).img
#endef
define Image/Build/squashfs
$(call prepare_generic_squashfs,$(KDIR)/root.squashfs)
( \
dd if=$(LINUX_DIR)/arch/ppc/boot/images/uImage bs=1024k conv=sync; \
dd if=$(KDIR)/root.$(1) bs=65536 conv=sync; \
) > $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-$(1).img
endef
$(eval $(call BuildImage))

30
target/linux/magicbox-2.6/patches/002-flash_map.patch
View file

@ -1,30 +0,0 @@
diff -urN linux.old/drivers/mtd/maps/Kconfig linux.dev/drivers/mtd/maps/Kconfig
--- linux.old/drivers/mtd/maps/Kconfig 2006-08-30 06:30:59.000000000 +0200
+++ linux.dev/drivers/mtd/maps/Kconfig 2006-08-30 06:11:51.000000000 +0200
@@ -323,6 +323,15 @@
Walnut board. If you have one of these boards and would like to
use the flash chips on it, say 'Y'.
+config MTD_MAGICMAP
+ tristate "Flash device mapped on IBM 405EP MagicBox"
+ depends on MTD_CFI && MTD_PARTITIONS && 40x && MAGICBOX
+ help
+ This enables access routines for the flash chips on the IBM 405EP
+ MagicBox board. If you have one of these boards and would like to
+ use the flash chips on it, say 'Y'.
+
+
config MTD_EBONY
tristate "Flash devices mapped on IBM 440GP Ebony"
depends on MTD_JEDECPROBE && EBONY
diff -urN linux.old/drivers/mtd/maps/Makefile linux.dev/drivers/mtd/maps/Makefile
--- linux.old/drivers/mtd/maps/Makefile 2006-08-30 06:30:59.000000000 +0200
+++ linux.dev/drivers/mtd/maps/Makefile 2006-08-30 06:11:51.000000000 +0200
@@ -58,6 +58,7 @@
obj-$(CONFIG_MTD_BEECH) += beech-mtd.o
obj-$(CONFIG_MTD_ARCTIC) += arctic-mtd.o
obj-$(CONFIG_MTD_WALNUT) += walnut.o
+obj-$(CONFIG_MTD_MAGICMAP) += magicmap.o
obj-$(CONFIG_MTD_H720X) += h720x-flash.o
obj-$(CONFIG_MTD_SBC8240) += sbc8240.o
obj-$(CONFIG_MTD_NOR_TOTO) += omap-toto-flash.o