diff options
Diffstat (limited to 'target/linux/ifxmips/patches-2.6.30/140-mtd.patch')
| -rw-r--r-- | target/linux/ifxmips/patches-2.6.30/140-mtd.patch | 296 |
1 files changed, 0 insertions, 296 deletions
diff --git a/target/linux/ifxmips/patches-2.6.30/140-mtd.patch b/target/linux/ifxmips/patches-2.6.30/140-mtd.patch deleted file mode 100644 index 184c78ca98..0000000000 --- a/target/linux/ifxmips/patches-2.6.30/140-mtd.patch +++ /dev/null @@ -1,296 +0,0 @@ -Index: linux-2.6.30.10/drivers/mtd/maps/Makefile -=================================================================== ---- linux-2.6.30.10.orig/drivers/mtd/maps/Makefile 2009-12-04 07:00:07.000000000 +0100 -+++ linux-2.6.30.10/drivers/mtd/maps/Makefile 2010-03-24 15:32:04.000000000 +0100 -@@ -62,3 +62,4 @@ - obj-$(CONFIG_MTD_BFIN_ASYNC) += bfin-async-flash.o - obj-$(CONFIG_MTD_RBTX4939) += rbtx4939-flash.o - obj-$(CONFIG_MTD_VMU) += vmu-flash.o -+obj-$(CONFIG_MTD_IFXMIPS) += ifxmips.o -Index: linux-2.6.30.10/drivers/mtd/maps/ifxmips.c -=================================================================== ---- /dev/null 1970-01-01 00:00:00.000000000 +0000 -+++ linux-2.6.30.10/drivers/mtd/maps/ifxmips.c 2010-03-24 16:46:26.000000000 +0100 -@@ -0,0 +1,282 @@ -+/* -+ * 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. -+ * -+ * This program is distributed in the hope that it will be useful, -+ * but WITHOUT ANY WARRANTY; without even the implied warranty of -+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -+ * GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with this program; if not, write to the Free Software -+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA -+ * -+ * Copyright (C) 2004 Liu Peng Infineon IFAP DC COM CPE -+ * Copyright (C) 2008 John Crispin <blogic@openwrt.org> -+ */ -+ -+#include <linux/module.h> -+#include <linux/types.h> -+#include <linux/kernel.h> -+#include <linux/io.h> -+#include <linux/init.h> -+#include <linux/mtd/mtd.h> -+#include <linux/mtd/map.h> -+#include <linux/mtd/partitions.h> -+#include <linux/mtd/cfi.h> -+#include <linux/magic.h> -+#include <linux/platform_device.h> -+ -+#include <ifxmips.h> -+#include <ifxmips_prom.h> -+#include <ifxmips_ebu.h> -+ -+#ifndef CONFIG_MTD_PARTITIONS -+#error Please enable CONFIG_MTD_PARTITIONS -+#endif -+ -+static struct map_info ifxmips_map = { -+ .name = "ifx-nor", -+ .bankwidth = 2, -+ .size = 0x400000, -+}; -+ -+static map_word ifxmips_read16(struct map_info *map, unsigned long adr) -+{ -+ unsigned long flags; -+ map_word temp; -+ spin_lock_irqsave(&ebu_lock, flags); -+ adr ^= 2; -+ temp.x[0] = *((__u16 *)(map->virt + adr)); -+ spin_unlock_irqrestore(&ebu_lock, flags); -+ return temp; -+} -+ -+static void ifxmips_write16(struct map_info *map, map_word d, unsigned long adr) -+{ -+ unsigned long flags; -+ spin_lock_irqsave(&ebu_lock, flags); -+ adr ^= 2; -+ *((__u16 *)(map->virt + adr)) = d.x[0]; -+ spin_unlock_irqrestore(&ebu_lock, flags); -+} -+ -+void ifxmips_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len) -+{ -+ unsigned char *p; -+ unsigned char *to_8; -+ unsigned long flags; -+ spin_lock_irqsave(&ebu_lock, flags); -+ from = (unsigned long)(from + map->virt); -+ p = (unsigned char *) from; -+ to_8 = (unsigned char *) to; -+ while (len--) -+ *to_8++ = *p++; -+ spin_unlock_irqrestore(&ebu_lock, flags); -+} -+ -+void ifxmips_copy_to(struct map_info *map, -+ unsigned long to, -+ const void *from, -+ ssize_t len) -+{ -+ unsigned char *p = (unsigned char *)from; -+ unsigned char *to_8; -+ unsigned long flags; -+ spin_lock_irqsave(&ebu_lock, flags); -+ to += (unsigned long) map->virt; -+ to_8 = (unsigned char *)to; -+ while (len--) -+ *p++ = *to_8++; -+ spin_unlock_irqrestore(&ebu_lock, flags); -+} -+ -+static struct mtd_partition ifxmips_partitions[] = { -+ { -+ .name = "uboot", -+ .offset = 0x00000000, -+ .size = 0x00020000, -+ }, -+ { -+ .name = "uboot_env", -+ .offset = 0x00020000, -+ .size = 0x0, -+ }, -+ { -+ .name = "kernel", -+ .offset = 0x0, -+ .size = 0x0, -+ }, -+ { -+ .name = "rootfs", -+ .offset = 0x0, -+ .size = 0x0, -+ }, -+ { -+ .name = "board_config", -+ .offset = 0x0, -+ .size = 0x0, -+ }, -+}; -+ -+static struct mtd_partition ifxmips_meta_partition = { -+ .name = "linux", -+ .offset = 0x00030000, -+ .size = 0x0, -+}; -+ -+static const char *part_probe_types[] = { "cmdlinepart", NULL }; -+ -+int find_uImage_size(unsigned long start_offset) -+{ -+ unsigned long magic; -+ unsigned long temp; -+ ifxmips_copy_from(&ifxmips_map, &magic, start_offset, 4); -+ if (le32_to_cpu(magic) != 0x56190527) { -+ printk(KERN_INFO "ifxmips_mtd: invalid magic (0x%08X) of kernel at 0x%08lx \n", le32_to_cpu(magic), start_offset); -+ return 0; -+ } -+ ifxmips_copy_from(&ifxmips_map, &temp, start_offset + 12, 4); -+ printk(KERN_INFO "ifxmips_mtd: kernel size is %ld \n", temp + 0x40); -+ return temp + 0x40; -+} -+ -+int find_brn_block(unsigned long start_offset) -+{ -+ unsigned char temp[9]; -+ ifxmips_copy_from(&ifxmips_map, &temp, start_offset, 8); -+ temp[8] = '\0'; -+ printk(KERN_INFO "data in brn block %s\n", temp); -+ if (memcmp(temp, "BRN-BOOT", 8) == 0) -+ return 1; -+ else -+ return 0; -+} -+ -+int detect_squashfs_partition(unsigned long start_offset) -+{ -+ unsigned long temp; -+ ifxmips_copy_from(&ifxmips_map, &temp, start_offset, 4); -+ return le32_to_cpu(temp) == SQUASHFS_MAGIC; -+} -+ -+static int ifxmips_mtd_probe(struct platform_device *dev) -+{ -+ struct mtd_info *ifxmips_mtd = NULL; -+ struct mtd_partition *parts = NULL; -+ unsigned long uimage_size; -+ int err, i; -+ int kernel_part = 2, rootfs_part = 3; -+ int num_parts = ARRAY_SIZE(ifxmips_partitions); -+ -+ ifxmips_w32(0x1d7ff, IFXMIPS_EBU_BUSCON0); -+ -+ ifxmips_map.read = ifxmips_read16; -+ ifxmips_map.write = ifxmips_write16; -+ ifxmips_map.copy_from = ifxmips_copy_from; -+ ifxmips_map.copy_to = ifxmips_copy_to; -+ ifxmips_map.phys = dev->resource->start; -+ ifxmips_map.size = dev->resource->end - ifxmips_map.phys + 1; -+ ifxmips_map.virt = ioremap_nocache(ifxmips_map.phys, ifxmips_map.size); -+ -+ if (!ifxmips_map.virt) { -+ printk(KERN_WARNING "ifxmips_mtd: failed to ioremap!\n"); -+ return -EIO; -+ } -+ -+ ifxmips_mtd = (struct mtd_info *) do_map_probe("cfi_probe", &ifxmips_map); -+ if (!ifxmips_mtd) { -+ iounmap(ifxmips_map.virt); -+ printk(KERN_WARNING "ifxmips_mtd: probing failed\n"); -+ return -ENXIO; -+ } -+ -+ ifxmips_mtd->owner = THIS_MODULE; -+ -+ err = parse_mtd_partitions(ifxmips_mtd, part_probe_types, &parts, 0); -+ if (err > 0) { -+ printk(KERN_INFO "ifxmips_mtd: found %d partitions from cmdline\n", err); -+ num_parts = err; -+ kernel_part = 0; -+ rootfs_part = 0; -+ for (i = 0; i < num_parts; i++) { -+ if (strcmp(parts[i].name, "kernel") == 0) -+ kernel_part = i; -+ if (strcmp(parts[i].name, "rootfs") == 0) -+ rootfs_part = i; -+ } -+ } else { -+ /* if the flash is 64k sectors, the kernel will reside at 0xb0030000 -+ if the flash is 128k sectors, the kernel will reside at 0xb0040000 */ -+ ifxmips_partitions[1].size = ifxmips_mtd->erasesize; -+ ifxmips_partitions[2].offset = ifxmips_partitions[1].offset + ifxmips_mtd->erasesize; -+ parts = &ifxmips_partitions[0]; -+ } -+ -+ /* dynamic size detection only if rootfs-part follows kernel-part */ -+ if (kernel_part+1 == rootfs_part) { -+ uimage_size = find_uImage_size(parts[kernel_part].offset); -+ -+ if (detect_squashfs_partition(parts[kernel_part].offset + uimage_size)) { -+ printk(KERN_INFO "ifxmips_mtd: found a squashfs following the uImage\n"); -+ } else { -+ uimage_size &= ~(ifxmips_mtd->erasesize -1); -+ uimage_size += ifxmips_mtd->erasesize; -+ } -+ -+ parts[kernel_part].size = uimage_size; -+ parts[rootfs_part].offset = parts[kernel_part].offset + parts[kernel_part].size; -+ parts[rootfs_part].size = ((ifxmips_mtd->size >> 20) * 1024 * 1024) - parts[rootfs_part].offset; -+ -+ ifxmips_meta_partition.offset = parts[kernel_part].offset; -+ ifxmips_meta_partition.size = parts[kernel_part].size + parts[rootfs_part].size; -+ } -+ -+ if (err <= 0) { -+ if (ifxmips_has_brn_block()) { -+ parts[3].size -= ifxmips_mtd->erasesize; -+ parts[4].offset = ifxmips_mtd->size - ifxmips_mtd->erasesize; -+ parts[4].size = ifxmips_mtd->erasesize; -+ ifxmips_meta_partition.size -= ifxmips_mtd->erasesize; -+ } else { -+ num_parts--; -+ } -+ } -+ -+ add_mtd_partitions(ifxmips_mtd, parts, num_parts); -+ add_mtd_partitions(ifxmips_mtd, &ifxmips_meta_partition, 1); -+ -+ printk(KERN_INFO "ifxmips_mtd: added %s flash with %dMB\n", -+ ifxmips_map.name, ((int)ifxmips_mtd->size) >> 20); -+ return 0; -+} -+ -+static struct platform_driver ifxmips_mtd_driver = { -+ .probe = ifxmips_mtd_probe, -+ .driver = { -+ .name = "ifxmips_mtd", -+ .owner = THIS_MODULE, -+ }, -+}; -+ -+int __init init_ifxmips_mtd(void) -+{ -+ int ret = platform_driver_register(&ifxmips_mtd_driver); -+ if (ret) -+ printk(KERN_INFO "ifxmips_mtd: error registering platfom driver!"); -+ return ret; -+} -+ -+static void __exit cleanup_ifxmips_mtd(void) -+{ -+ platform_driver_unregister(&ifxmips_mtd_driver); -+} -+ -+module_init(init_ifxmips_mtd); -+module_exit(cleanup_ifxmips_mtd); -+ -+MODULE_LICENSE("GPL"); -+MODULE_AUTHOR("John Crispin <blogic@openwrt.org>"); -+MODULE_DESCRIPTION("MTD map driver for IFXMIPS boards"); |