Merge git://git.infradead.org/~dwmw2/cafe-2.6
diff --git a/drivers/mtd/cmdlinepart.c b/drivers/mtd/cmdlinepart.c
index a7a7bfe..3402ce4 100644
--- a/drivers/mtd/cmdlinepart.c
+++ b/drivers/mtd/cmdlinepart.c
@@ -346,7 +346,7 @@
*
* This function needs to be visible for bootloaders.
*/
-int mtdpart_setup(char *s)
+static int mtdpart_setup(char *s)
{
cmdline = s;
return 1;
diff --git a/drivers/mtd/ftl.c b/drivers/mtd/ftl.c
index 8a878b3..da39355 100644
--- a/drivers/mtd/ftl.c
+++ b/drivers/mtd/ftl.c
@@ -1054,7 +1054,7 @@
le32_to_cpu(partition->header.FormattedSize) >> 10);
#endif
partition->mbd.size = le32_to_cpu(partition->header.FormattedSize) >> 9;
- partition->mbd.blksize = SECTOR_SIZE;
+
partition->mbd.tr = tr;
partition->mbd.devnum = -1;
if (!add_mtd_blktrans_dev((void *)partition))
@@ -1076,6 +1076,7 @@
.name = "ftl",
.major = FTL_MAJOR,
.part_bits = PART_BITS,
+ .blksize = SECTOR_SIZE,
.readsect = ftl_readsect,
.writesect = ftl_writesect,
.getgeo = ftl_getgeo,
diff --git a/drivers/mtd/inftlcore.c b/drivers/mtd/inftlcore.c
index 4116535..d2f54c0 100644
--- a/drivers/mtd/inftlcore.c
+++ b/drivers/mtd/inftlcore.c
@@ -77,7 +77,7 @@
inftl->mbd.mtd = mtd;
inftl->mbd.devnum = -1;
- inftl->mbd.blksize = 512;
+
inftl->mbd.tr = tr;
if (INFTL_mount(inftl) < 0) {
@@ -163,10 +163,9 @@
ops.ooblen = len;
ops.oobbuf = buf;
ops.datbuf = NULL;
- ops.len = len;
res = mtd->read_oob(mtd, offs & ~(mtd->writesize - 1), &ops);
- *retlen = ops.retlen;
+ *retlen = ops.oobretlen;
return res;
}
@@ -184,10 +183,9 @@
ops.ooblen = len;
ops.oobbuf = buf;
ops.datbuf = NULL;
- ops.len = len;
res = mtd->write_oob(mtd, offs & ~(mtd->writesize - 1), &ops);
- *retlen = ops.retlen;
+ *retlen = ops.oobretlen;
return res;
}
@@ -945,6 +943,7 @@
.name = "inftl",
.major = INFTL_MAJOR,
.part_bits = INFTL_PARTN_BITS,
+ .blksize = 512,
.getgeo = inftl_getgeo,
.readsect = inftl_readblock,
.writesect = inftl_writeblock,
diff --git a/drivers/mtd/maps/Kconfig b/drivers/mtd/maps/Kconfig
index 7514a9b..fa74668 100644
--- a/drivers/mtd/maps/Kconfig
+++ b/drivers/mtd/maps/Kconfig
@@ -193,6 +193,15 @@
BE VERY CAREFUL.
+config MTD_CK804XROM
+ tristate "BIOS flash chip on Nvidia CK804"
+ depends on X86 && MTD_JEDECPROBE
+ help
+ Support for treating the BIOS flash chip on nvidia motherboards
+ as an MTD device - with this you can reprogram your BIOS.
+
+ BE VERY CAREFUL.
+
config MTD_SCB2_FLASH
tristate "BIOS flash chip on Intel SCB2 boards"
depends on X86 && MTD_JEDECPROBE
diff --git a/drivers/mtd/maps/Makefile b/drivers/mtd/maps/Makefile
index 9061432..3450521 100644
--- a/drivers/mtd/maps/Makefile
+++ b/drivers/mtd/maps/Makefile
@@ -19,6 +19,7 @@
obj-$(CONFIG_MTD_AMD76XROM) += amd76xrom.o
obj-$(CONFIG_MTD_ESB2ROM) += esb2rom.o
obj-$(CONFIG_MTD_ICHXROM) += ichxrom.o
+obj-$(CONFIG_MTD_CK804XROM) += ck804xrom.o
obj-$(CONFIG_MTD_TSUNAMI) += tsunami_flash.o
obj-$(CONFIG_MTD_LUBBOCK) += lubbock-flash.o
obj-$(CONFIG_MTD_MAINSTONE) += mainstone-flash.o
diff --git a/drivers/mtd/maps/ck804xrom.c b/drivers/mtd/maps/ck804xrom.c
new file mode 100644
index 0000000..c222b88
--- /dev/null
+++ b/drivers/mtd/maps/ck804xrom.c
@@ -0,0 +1,356 @@
+/*
+ * ck804xrom.c
+ *
+ * Normal mappings of chips in physical memory
+ *
+ * Dave Olsen <dolsen@lnxi.com>
+ * Ryan Jackson <rjackson@lnxi.com>
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/version.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <asm/io.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/map.h>
+#include <linux/mtd/cfi.h>
+#include <linux/mtd/flashchip.h>
+#include <linux/pci.h>
+#include <linux/pci_ids.h>
+#include <linux/list.h>
+
+
+#define MOD_NAME KBUILD_BASENAME
+
+#define ADDRESS_NAME_LEN 18
+
+#define ROM_PROBE_STEP_SIZE (64*1024)
+
+struct ck804xrom_window {
+ void __iomem *virt;
+ unsigned long phys;
+ unsigned long size;
+ struct list_head maps;
+ struct resource rsrc;
+ struct pci_dev *pdev;
+};
+
+struct ck804xrom_map_info {
+ struct list_head list;
+ struct map_info map;
+ struct mtd_info *mtd;
+ struct resource rsrc;
+ char map_name[sizeof(MOD_NAME) + 2 + ADDRESS_NAME_LEN];
+};
+
+
+/* The 2 bits controlling the window size are often set to allow reading
+ * the BIOS, but too small to allow writing, since the lock registers are
+ * 4MiB lower in the address space than the data.
+ *
+ * This is intended to prevent flashing the bios, perhaps accidentally.
+ *
+ * This parameter allows the normal driver to override the BIOS settings.
+ *
+ * The bits are 6 and 7. If both bits are set, it is a 5MiB window.
+ * If only the 7 Bit is set, it is a 4MiB window. Otherwise, a
+ * 64KiB window.
+ *
+ */
+static uint win_size_bits = 0;
+module_param(win_size_bits, uint, 0);
+MODULE_PARM_DESC(win_size_bits, "ROM window size bits override for 0x88 byte, normally set by BIOS.");
+
+static struct ck804xrom_window ck804xrom_window = {
+ .maps = LIST_HEAD_INIT(ck804xrom_window.maps),
+};
+
+static void ck804xrom_cleanup(struct ck804xrom_window *window)
+{
+ struct ck804xrom_map_info *map, *scratch;
+ u8 byte;
+
+ if (window->pdev) {
+ /* Disable writes through the rom window */
+ pci_read_config_byte(window->pdev, 0x6d, &byte);
+ pci_write_config_byte(window->pdev, 0x6d, byte & ~1);
+ }
+
+ /* Free all of the mtd devices */
+ list_for_each_entry_safe(map, scratch, &window->maps, list) {
+ if (map->rsrc.parent)
+ release_resource(&map->rsrc);
+
+ del_mtd_device(map->mtd);
+ map_destroy(map->mtd);
+ list_del(&map->list);
+ kfree(map);
+ }
+ if (window->rsrc.parent)
+ release_resource(&window->rsrc);
+
+ if (window->virt) {
+ iounmap(window->virt);
+ window->virt = NULL;
+ window->phys = 0;
+ window->size = 0;
+ }
+ pci_dev_put(window->pdev);
+}
+
+
+static int __devinit ck804xrom_init_one (struct pci_dev *pdev,
+ const struct pci_device_id *ent)
+{
+ static char *rom_probe_types[] = { "cfi_probe", "jedec_probe", NULL };
+ u8 byte;
+ struct ck804xrom_window *window = &ck804xrom_window;
+ struct ck804xrom_map_info *map = NULL;
+ unsigned long map_top;
+
+ /* Remember the pci dev I find the window in */
+ window->pdev = pci_dev_get(pdev);
+
+ /* Enable the selected rom window. This is often incorrectly
+ * set up by the BIOS, and the 4MiB offset for the lock registers
+ * requires the full 5MiB of window space.
+ *
+ * This 'write, then read' approach leaves the bits for
+ * other uses of the hardware info.
+ */
+ pci_read_config_byte(pdev, 0x88, &byte);
+ pci_write_config_byte(pdev, 0x88, byte | win_size_bits );
+
+
+ /* Assume the rom window is properly setup, and find it's size */
+ pci_read_config_byte(pdev, 0x88, &byte);
+
+ if ((byte & ((1<<7)|(1<<6))) == ((1<<7)|(1<<6)))
+ window->phys = 0xffb00000; /* 5MiB */
+ else if ((byte & (1<<7)) == (1<<7))
+ window->phys = 0xffc00000; /* 4MiB */
+ else
+ window->phys = 0xffff0000; /* 64KiB */
+
+ window->size = 0xffffffffUL - window->phys + 1UL;
+
+ /*
+ * Try to reserve the window mem region. If this fails then
+ * it is likely due to a fragment of the window being
+ * "reserved" by the BIOS. In the case that the
+ * request_mem_region() fails then once the rom size is
+ * discovered we will try to reserve the unreserved fragment.
+ */
+ window->rsrc.name = MOD_NAME;
+ window->rsrc.start = window->phys;
+ window->rsrc.end = window->phys + window->size - 1;
+ window->rsrc.flags = IORESOURCE_MEM | IORESOURCE_BUSY;
+ if (request_resource(&iomem_resource, &window->rsrc)) {
+ window->rsrc.parent = NULL;
+ printk(KERN_ERR MOD_NAME
+ " %s(): Unable to register resource"
+ " 0x%.016llx-0x%.016llx - kernel bug?\n",
+ __func__,
+ (unsigned long long)window->rsrc.start,
+ (unsigned long long)window->rsrc.end);
+ }
+
+
+ /* Enable writes through the rom window */
+ pci_read_config_byte(pdev, 0x6d, &byte);
+ pci_write_config_byte(pdev, 0x6d, byte | 1);
+
+ /* FIXME handle registers 0x80 - 0x8C the bios region locks */
+
+ /* For write accesses caches are useless */
+ window->virt = ioremap_nocache(window->phys, window->size);
+ if (!window->virt) {
+ printk(KERN_ERR MOD_NAME ": ioremap(%08lx, %08lx) failed\n",
+ window->phys, window->size);
+ goto out;
+ }
+
+ /* Get the first address to look for a rom chip at */
+ map_top = window->phys;
+#if 1
+ /* The probe sequence run over the firmware hub lock
+ * registers sets them to 0x7 (no access).
+ * Probe at most the last 4MiB of the address space.
+ */
+ if (map_top < 0xffc00000)
+ map_top = 0xffc00000;
+#endif
+ /* Loop through and look for rom chips. Since we don't know the
+ * starting address for each chip, probe every ROM_PROBE_STEP_SIZE
+ * bytes from the starting address of the window.
+ */
+ while((map_top - 1) < 0xffffffffUL) {
+ struct cfi_private *cfi;
+ unsigned long offset;
+ int i;
+
+ if (!map)
+ map = kmalloc(sizeof(*map), GFP_KERNEL);
+
+ if (!map) {
+ printk(KERN_ERR MOD_NAME ": kmalloc failed");
+ goto out;
+ }
+ memset(map, 0, sizeof(*map));
+ INIT_LIST_HEAD(&map->list);
+ map->map.name = map->map_name;
+ map->map.phys = map_top;
+ offset = map_top - window->phys;
+ map->map.virt = (void __iomem *)
+ (((unsigned long)(window->virt)) + offset);
+ map->map.size = 0xffffffffUL - map_top + 1UL;
+ /* Set the name of the map to the address I am trying */
+ sprintf(map->map_name, "%s @%08lx",
+ MOD_NAME, map->map.phys);
+
+ /* There is no generic VPP support */
+ for(map->map.bankwidth = 32; map->map.bankwidth;
+ map->map.bankwidth >>= 1)
+ {
+ char **probe_type;
+ /* Skip bankwidths that are not supported */
+ if (!map_bankwidth_supported(map->map.bankwidth))
+ continue;
+
+ /* Setup the map methods */
+ simple_map_init(&map->map);
+
+ /* Try all of the probe methods */
+ probe_type = rom_probe_types;
+ for(; *probe_type; probe_type++) {
+ map->mtd = do_map_probe(*probe_type, &map->map);
+ if (map->mtd)
+ goto found;
+ }
+ }
+ map_top += ROM_PROBE_STEP_SIZE;
+ continue;
+ found:
+ /* Trim the size if we are larger than the map */
+ if (map->mtd->size > map->map.size) {
+ printk(KERN_WARNING MOD_NAME
+ " rom(%u) larger than window(%lu). fixing...\n",
+ map->mtd->size, map->map.size);
+ map->mtd->size = map->map.size;
+ }
+ if (window->rsrc.parent) {
+ /*
+ * Registering the MTD device in iomem may not be possible
+ * if there is a BIOS "reserved" and BUSY range. If this
+ * fails then continue anyway.
+ */
+ map->rsrc.name = map->map_name;
+ map->rsrc.start = map->map.phys;
+ map->rsrc.end = map->map.phys + map->mtd->size - 1;
+ map->rsrc.flags = IORESOURCE_MEM | IORESOURCE_BUSY;
+ if (request_resource(&window->rsrc, &map->rsrc)) {
+ printk(KERN_ERR MOD_NAME
+ ": cannot reserve MTD resource\n");
+ map->rsrc.parent = NULL;
+ }
+ }
+
+ /* Make the whole region visible in the map */
+ map->map.virt = window->virt;
+ map->map.phys = window->phys;
+ cfi = map->map.fldrv_priv;
+ for(i = 0; i < cfi->numchips; i++)
+ cfi->chips[i].start += offset;
+
+ /* Now that the mtd devices is complete claim and export it */
+ map->mtd->owner = THIS_MODULE;
+ if (add_mtd_device(map->mtd)) {
+ map_destroy(map->mtd);
+ map->mtd = NULL;
+ goto out;
+ }
+
+
+ /* Calculate the new value of map_top */
+ map_top += map->mtd->size;
+
+ /* File away the map structure */
+ list_add(&map->list, &window->maps);
+ map = NULL;
+ }
+
+ out:
+ /* Free any left over map structures */
+ if (map)
+ kfree(map);
+
+ /* See if I have any map structures */
+ if (list_empty(&window->maps)) {
+ ck804xrom_cleanup(window);
+ return -ENODEV;
+ }
+ return 0;
+}
+
+
+static void __devexit ck804xrom_remove_one (struct pci_dev *pdev)
+{
+ struct ck804xrom_window *window = &ck804xrom_window;
+
+ ck804xrom_cleanup(window);
+}
+
+static struct pci_device_id ck804xrom_pci_tbl[] = {
+ { PCI_VENDOR_ID_NVIDIA, 0x0051,
+ PCI_ANY_ID, PCI_ANY_ID, }, /* nvidia ck804 */
+ { 0, }
+};
+
+MODULE_DEVICE_TABLE(pci, ck804xrom_pci_tbl);
+
+#if 0
+static struct pci_driver ck804xrom_driver = {
+ .name = MOD_NAME,
+ .id_table = ck804xrom_pci_tbl,
+ .probe = ck804xrom_init_one,
+ .remove = ck804xrom_remove_one,
+};
+#endif
+
+static int __init init_ck804xrom(void)
+{
+ struct pci_dev *pdev;
+ struct pci_device_id *id;
+ int retVal;
+ pdev = NULL;
+
+ for(id = ck804xrom_pci_tbl; id->vendor; id++) {
+ pdev = pci_find_device(id->vendor, id->device, NULL);
+ if (pdev)
+ break;
+ }
+ if (pdev) {
+ retVal = ck804xrom_init_one(pdev, &ck804xrom_pci_tbl[0]);
+ pci_dev_put(pdev);
+ return retVal;
+ }
+ return -ENXIO;
+#if 0
+ return pci_module_init(&ck804xrom_driver);
+#endif
+}
+
+static void __exit cleanup_ck804xrom(void)
+{
+ ck804xrom_remove_one(ck804xrom_window.pdev);
+}
+
+module_init(init_ck804xrom);
+module_exit(cleanup_ck804xrom);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Eric Biederman <ebiederman@lnxi.com>, Dave Olsen <dolsen@lnxi.com>");
+MODULE_DESCRIPTION("MTD map driver for BIOS chips on the Nvidia ck804 southbridge");
+
diff --git a/drivers/mtd/mtd_blkdevs.c b/drivers/mtd/mtd_blkdevs.c
index 178b53b..b5d62cb 100644
--- a/drivers/mtd/mtd_blkdevs.c
+++ b/drivers/mtd/mtd_blkdevs.c
@@ -42,19 +42,20 @@
unsigned long block, nsect;
char *buf;
- block = req->sector;
- nsect = req->current_nr_sectors;
+ block = req->sector << 9 >> tr->blkshift;
+ nsect = req->current_nr_sectors << 9 >> tr->blkshift;
+
buf = req->buffer;
if (!blk_fs_request(req))
return 0;
- if (block + nsect > get_capacity(req->rq_disk))
+ if (req->sector + req->current_nr_sectors > get_capacity(req->rq_disk))
return 0;
switch(rq_data_dir(req)) {
case READ:
- for (; nsect > 0; nsect--, block++, buf += 512)
+ for (; nsect > 0; nsect--, block++, buf += tr->blksize)
if (tr->readsect(dev, block, buf))
return 0;
return 1;
@@ -63,7 +64,7 @@
if (!tr->writesect)
return 0;
- for (; nsect > 0; nsect--, block++, buf += 512)
+ for (; nsect > 0; nsect--, block++, buf += tr->blksize)
if (tr->writesect(dev, block, buf))
return 0;
return 1;
@@ -297,7 +298,7 @@
/* 2.5 has capacity in units of 512 bytes while still
having BLOCK_SIZE_BITS set to 10. Just to keep us amused. */
- set_capacity(gd, (new->size * new->blksize) >> 9);
+ set_capacity(gd, (new->size * tr->blksize) >> 9);
gd->private_data = new;
new->blkcore_priv = gd;
@@ -401,6 +402,8 @@
}
tr->blkcore_priv->rq->queuedata = tr;
+ blk_queue_hardsect_size(tr->blkcore_priv->rq, tr->blksize);
+ tr->blkshift = ffs(tr->blksize) - 1;
ret = kernel_thread(mtd_blktrans_thread, tr, CLONE_KERNEL);
if (ret < 0) {
diff --git a/drivers/mtd/mtdblock.c b/drivers/mtd/mtdblock.c
index 04ed3469..a052648 100644
--- a/drivers/mtd/mtdblock.c
+++ b/drivers/mtd/mtdblock.c
@@ -348,7 +348,7 @@
dev->mtd = mtd;
dev->devnum = mtd->index;
- dev->blksize = 512;
+
dev->size = mtd->size >> 9;
dev->tr = tr;
@@ -368,6 +368,7 @@
.name = "mtdblock",
.major = 31,
.part_bits = 0,
+ .blksize = 512,
.open = mtdblock_open,
.flush = mtdblock_flush,
.release = mtdblock_release,
diff --git a/drivers/mtd/mtdblock_ro.c b/drivers/mtd/mtdblock_ro.c
index 29563ed..642ccc6 100644
--- a/drivers/mtd/mtdblock_ro.c
+++ b/drivers/mtd/mtdblock_ro.c
@@ -42,7 +42,7 @@
dev->mtd = mtd;
dev->devnum = mtd->index;
- dev->blksize = 512;
+
dev->size = mtd->size >> 9;
dev->tr = tr;
dev->readonly = 1;
@@ -60,6 +60,7 @@
.name = "mtdblock",
.major = 31,
.part_bits = 0,
+ .blksize = 512,
.readsect = mtdblock_readsect,
.writesect = mtdblock_writesect,
.add_mtd = mtdblock_add_mtd,
diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c
index 866c8e0..07618f5 100644
--- a/drivers/mtd/mtdchar.c
+++ b/drivers/mtd/mtdchar.c
@@ -499,13 +499,12 @@
if (ret)
return ret;
- ops.len = buf.length;
ops.ooblen = buf.length;
ops.ooboffs = buf.start & (mtd->oobsize - 1);
ops.datbuf = NULL;
ops.mode = MTD_OOB_PLACE;
- if (ops.ooboffs && ops.len > (mtd->oobsize - ops.ooboffs))
+ if (ops.ooboffs && ops.ooblen > (mtd->oobsize - ops.ooboffs))
return -EINVAL;
ops.oobbuf = kmalloc(buf.length, GFP_KERNEL);
@@ -520,7 +519,7 @@
buf.start &= ~(mtd->oobsize - 1);
ret = mtd->write_oob(mtd, buf.start, &ops);
- if (copy_to_user(argp + sizeof(uint32_t), &ops.retlen,
+ if (copy_to_user(argp + sizeof(uint32_t), &ops.oobretlen,
sizeof(uint32_t)))
ret = -EFAULT;
@@ -548,7 +547,6 @@
if (ret)
return ret;
- ops.len = buf.length;
ops.ooblen = buf.length;
ops.ooboffs = buf.start & (mtd->oobsize - 1);
ops.datbuf = NULL;
@@ -564,10 +562,10 @@
buf.start &= ~(mtd->oobsize - 1);
ret = mtd->read_oob(mtd, buf.start, &ops);
- if (put_user(ops.retlen, (uint32_t __user *)argp))
+ if (put_user(ops.oobretlen, (uint32_t __user *)argp))
ret = -EFAULT;
- else if (ops.retlen && copy_to_user(buf.ptr, ops.oobbuf,
- ops.retlen))
+ else if (ops.oobretlen && copy_to_user(buf.ptr, ops.oobbuf,
+ ops.oobretlen))
ret = -EFAULT;
kfree(ops.oobbuf);
diff --git a/drivers/mtd/mtdconcat.c b/drivers/mtd/mtdconcat.c
index 1fea631..cf927a8 100644
--- a/drivers/mtd/mtdconcat.c
+++ b/drivers/mtd/mtdconcat.c
@@ -247,7 +247,7 @@
struct mtd_oob_ops devops = *ops;
int i, err, ret = 0;
- ops->retlen = 0;
+ ops->retlen = ops->oobretlen = 0;
for (i = 0; i < concat->num_subdev; i++) {
struct mtd_info *subdev = concat->subdev[i];
@@ -263,6 +263,7 @@
err = subdev->read_oob(subdev, from, &devops);
ops->retlen += devops.retlen;
+ ops->oobretlen += devops.oobretlen;
/* Save information about bitflips! */
if (unlikely(err)) {
@@ -278,14 +279,18 @@
return err;
}
- devops.len = ops->len - ops->retlen;
- if (!devops.len)
- return ret;
-
- if (devops.datbuf)
+ if (devops.datbuf) {
+ devops.len = ops->len - ops->retlen;
+ if (!devops.len)
+ return ret;
devops.datbuf += devops.retlen;
- if (devops.oobbuf)
- devops.oobbuf += devops.ooblen;
+ }
+ if (devops.oobbuf) {
+ devops.ooblen = ops->ooblen - ops->oobretlen;
+ if (!devops.ooblen)
+ return ret;
+ devops.oobbuf += ops->oobretlen;
+ }
from = 0;
}
@@ -321,14 +326,18 @@
if (err)
return err;
- devops.len = ops->len - ops->retlen;
- if (!devops.len)
- return 0;
-
- if (devops.datbuf)
+ if (devops.datbuf) {
+ devops.len = ops->len - ops->retlen;
+ if (!devops.len)
+ return 0;
devops.datbuf += devops.retlen;
- if (devops.oobbuf)
- devops.oobbuf += devops.ooblen;
+ }
+ if (devops.oobbuf) {
+ devops.ooblen = ops->ooblen - ops->oobretlen;
+ if (!devops.ooblen)
+ return 0;
+ devops.oobbuf += devops.oobretlen;
+ }
to = 0;
}
return -EINVAL;
diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c
index 06a9303..a20f75f 100644
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -94,7 +94,7 @@
if (from >= mtd->size)
return -EINVAL;
- if (from + ops->len > mtd->size)
+ if (ops->datbuf && from + ops->len > mtd->size)
return -EINVAL;
res = part->master->read_oob(part->master, from + part->offset, ops);
@@ -161,7 +161,7 @@
if (to >= mtd->size)
return -EINVAL;
- if (to + ops->len > mtd->size)
+ if (ops->datbuf && to + ops->len > mtd->size)
return -EINVAL;
return part->master->write_oob(part->master, to + part->offset, ops);
}
diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig
index 564f79d..0662775 100644
--- a/drivers/mtd/nand/Kconfig
+++ b/drivers/mtd/nand/Kconfig
@@ -90,6 +90,7 @@
depends on MTD_NAND && SH_SOLUTION_ENGINE
select REED_SOLOMON
select REED_SOLOMON_DEC8
+ select BITREVERSE
help
This enables the driver for the Renesas Technology AG-AND
flash interface board (FROM_BOARD4)
diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index f23ab2c..5dcb2e0 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -362,7 +362,7 @@
* access
*/
ofs += mtd->oobsize;
- chip->ops.len = 2;
+ chip->ops.len = chip->ops.ooblen = 2;
chip->ops.datbuf = NULL;
chip->ops.oobbuf = buf;
chip->ops.ooboffs = chip->badblockpos & ~0x01;
@@ -897,12 +897,11 @@
* @chip: nand chip structure
* @oob: oob destination address
* @ops: oob ops structure
+ * @len: size of oob to transfer
*/
static uint8_t *nand_transfer_oob(struct nand_chip *chip, uint8_t *oob,
- struct mtd_oob_ops *ops)
+ struct mtd_oob_ops *ops, size_t len)
{
- size_t len = ops->ooblen;
-
switch(ops->mode) {
case MTD_OOB_PLACE:
@@ -960,6 +959,7 @@
int sndcmd = 1;
int ret = 0;
uint32_t readlen = ops->len;
+ uint32_t oobreadlen = ops->ooblen;
uint8_t *bufpoi, *oob, *buf;
stats = mtd->ecc_stats;
@@ -1006,10 +1006,17 @@
if (unlikely(oob)) {
/* Raw mode does data:oob:data:oob */
- if (ops->mode != MTD_OOB_RAW)
- oob = nand_transfer_oob(chip, oob, ops);
- else
- buf = nand_transfer_oob(chip, buf, ops);
+ if (ops->mode != MTD_OOB_RAW) {
+ int toread = min(oobreadlen,
+ chip->ecc.layout->oobavail);
+ if (toread) {
+ oob = nand_transfer_oob(chip,
+ oob, ops, toread);
+ oobreadlen -= toread;
+ }
+ } else
+ buf = nand_transfer_oob(chip,
+ buf, ops, mtd->oobsize);
}
if (!(chip->options & NAND_NO_READRDY)) {
@@ -1056,6 +1063,8 @@
}
ops->retlen = ops->len - (size_t) readlen;
+ if (oob)
+ ops->oobretlen = ops->ooblen - oobreadlen;
if (ret)
return ret;
@@ -1256,12 +1265,18 @@
int page, realpage, chipnr, sndcmd = 1;
struct nand_chip *chip = mtd->priv;
int blkcheck = (1 << (chip->phys_erase_shift - chip->page_shift)) - 1;
- int readlen = ops->len;
+ int readlen = ops->ooblen;
+ int len;
uint8_t *buf = ops->oobbuf;
DEBUG(MTD_DEBUG_LEVEL3, "nand_read_oob: from = 0x%08Lx, len = %i\n",
(unsigned long long)from, readlen);
+ if (ops->mode == MTD_OOB_RAW)
+ len = mtd->oobsize;
+ else
+ len = chip->ecc.layout->oobavail;
+
chipnr = (int)(from >> chip->chip_shift);
chip->select_chip(mtd, chipnr);
@@ -1271,7 +1286,9 @@
while(1) {
sndcmd = chip->ecc.read_oob(mtd, chip, page, sndcmd);
- buf = nand_transfer_oob(chip, buf, ops);
+
+ len = min(len, readlen);
+ buf = nand_transfer_oob(chip, buf, ops, len);
if (!(chip->options & NAND_NO_READRDY)) {
/*
@@ -1286,7 +1303,7 @@
nand_wait_ready(mtd);
}
- readlen -= ops->ooblen;
+ readlen -= len;
if (!readlen)
break;
@@ -1308,7 +1325,7 @@
sndcmd = 1;
}
- ops->retlen = ops->len;
+ ops->oobretlen = ops->ooblen;
return 0;
}
@@ -1329,7 +1346,7 @@
ops->retlen = 0;
/* Do not allow reads past end of device */
- if ((from + ops->len) > mtd->size) {
+ if (ops->datbuf && (from + ops->len) > mtd->size) {
DEBUG(MTD_DEBUG_LEVEL0, "nand_read_oob: "
"Attempt read beyond end of device\n");
return -EINVAL;
@@ -1654,6 +1671,8 @@
}
ops->retlen = ops->len - writelen;
+ if (unlikely(oob))
+ ops->oobretlen = ops->ooblen;
return ret;
}
@@ -1709,10 +1728,10 @@
struct nand_chip *chip = mtd->priv;
DEBUG(MTD_DEBUG_LEVEL3, "nand_write_oob: to = 0x%08x, len = %i\n",
- (unsigned int)to, (int)ops->len);
+ (unsigned int)to, (int)ops->ooblen);
/* Do not allow write past end of page */
- if ((ops->ooboffs + ops->len) > mtd->oobsize) {
+ if ((ops->ooboffs + ops->ooblen) > mtd->oobsize) {
DEBUG(MTD_DEBUG_LEVEL0, "nand_write_oob: "
"Attempt to write past end of page\n");
return -EINVAL;
@@ -1748,7 +1767,7 @@
if (status)
return status;
- ops->retlen = ops->len;
+ ops->oobretlen = ops->ooblen;
return 0;
}
@@ -1768,7 +1787,7 @@
ops->retlen = 0;
/* Do not allow writes past end of device */
- if ((to + ops->len) > mtd->size) {
+ if (ops->datbuf && (to + ops->len) > mtd->size) {
DEBUG(MTD_DEBUG_LEVEL0, "nand_read_oob: "
"Attempt read beyond end of device\n");
return -EINVAL;
diff --git a/drivers/mtd/nand/nand_bbt.c b/drivers/mtd/nand/nand_bbt.c
index 9402653..4e74fe9 100644
--- a/drivers/mtd/nand/nand_bbt.c
+++ b/drivers/mtd/nand/nand_bbt.c
@@ -333,7 +333,6 @@
struct mtd_oob_ops ops;
int j, ret;
- ops.len = mtd->oobsize;
ops.ooblen = mtd->oobsize;
ops.oobbuf = buf;
ops.ooboffs = 0;
@@ -676,10 +675,10 @@
"bad block table\n");
}
/* Read oob data */
- ops.len = (len >> this->page_shift) * mtd->oobsize;
+ ops.ooblen = (len >> this->page_shift) * mtd->oobsize;
ops.oobbuf = &buf[len];
res = mtd->read_oob(mtd, to + mtd->writesize, &ops);
- if (res < 0 || ops.retlen != ops.len)
+ if (res < 0 || ops.oobretlen != ops.ooblen)
goto outerr;
/* Calc the byte offset in the buffer */
diff --git a/drivers/mtd/nand/ndfc.c b/drivers/mtd/nand/ndfc.c
index 039c759..fd7a8d5 100644
--- a/drivers/mtd/nand/ndfc.c
+++ b/drivers/mtd/nand/ndfc.c
@@ -56,7 +56,7 @@
ccr |= NDFC_CCR_BS(chip + pchip->chip_offset);
} else
ccr |= NDFC_CCR_RESET_CE;
- writel(ccr, ndfc->ndfcbase + NDFC_CCR);
+ __raw_writel(ccr, ndfc->ndfcbase + NDFC_CCR);
}
static void ndfc_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl)
diff --git a/drivers/mtd/nand/rtc_from4.c b/drivers/mtd/nand/rtc_from4.c
index f8c4964..4a83a7d 100644
--- a/drivers/mtd/nand/rtc_from4.c
+++ b/drivers/mtd/nand/rtc_from4.c
@@ -24,6 +24,7 @@
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/rslib.h>
+#include <linux/bitrev.h>
#include <linux/module.h>
#include <linux/mtd/compatmac.h>
#include <linux/mtd/mtd.h>
@@ -152,47 +153,6 @@
.oobfree = {{32, 32}}
};
-/* Aargh. I missed the reversed bit order, when I
- * was talking to Renesas about the FPGA.
- *
- * The table is used for bit reordering and inversion
- * of the ecc byte which we get from the FPGA
- */
-static uint8_t revbits[256] = {
- 0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0,
- 0x10, 0x90, 0x50, 0xd0, 0x30, 0xb0, 0x70, 0xf0,
- 0x08, 0x88, 0x48, 0xc8, 0x28, 0xa8, 0x68, 0xe8,
- 0x18, 0x98, 0x58, 0xd8, 0x38, 0xb8, 0x78, 0xf8,
- 0x04, 0x84, 0x44, 0xc4, 0x24, 0xa4, 0x64, 0xe4,
- 0x14, 0x94, 0x54, 0xd4, 0x34, 0xb4, 0x74, 0xf4,
- 0x0c, 0x8c, 0x4c, 0xcc, 0x2c, 0xac, 0x6c, 0xec,
- 0x1c, 0x9c, 0x5c, 0xdc, 0x3c, 0xbc, 0x7c, 0xfc,
- 0x02, 0x82, 0x42, 0xc2, 0x22, 0xa2, 0x62, 0xe2,
- 0x12, 0x92, 0x52, 0xd2, 0x32, 0xb2, 0x72, 0xf2,
- 0x0a, 0x8a, 0x4a, 0xca, 0x2a, 0xaa, 0x6a, 0xea,
- 0x1a, 0x9a, 0x5a, 0xda, 0x3a, 0xba, 0x7a, 0xfa,
- 0x06, 0x86, 0x46, 0xc6, 0x26, 0xa6, 0x66, 0xe6,
- 0x16, 0x96, 0x56, 0xd6, 0x36, 0xb6, 0x76, 0xf6,
- 0x0e, 0x8e, 0x4e, 0xce, 0x2e, 0xae, 0x6e, 0xee,
- 0x1e, 0x9e, 0x5e, 0xde, 0x3e, 0xbe, 0x7e, 0xfe,
- 0x01, 0x81, 0x41, 0xc1, 0x21, 0xa1, 0x61, 0xe1,
- 0x11, 0x91, 0x51, 0xd1, 0x31, 0xb1, 0x71, 0xf1,
- 0x09, 0x89, 0x49, 0xc9, 0x29, 0xa9, 0x69, 0xe9,
- 0x19, 0x99, 0x59, 0xd9, 0x39, 0xb9, 0x79, 0xf9,
- 0x05, 0x85, 0x45, 0xc5, 0x25, 0xa5, 0x65, 0xe5,
- 0x15, 0x95, 0x55, 0xd5, 0x35, 0xb5, 0x75, 0xf5,
- 0x0d, 0x8d, 0x4d, 0xcd, 0x2d, 0xad, 0x6d, 0xed,
- 0x1d, 0x9d, 0x5d, 0xdd, 0x3d, 0xbd, 0x7d, 0xfd,
- 0x03, 0x83, 0x43, 0xc3, 0x23, 0xa3, 0x63, 0xe3,
- 0x13, 0x93, 0x53, 0xd3, 0x33, 0xb3, 0x73, 0xf3,
- 0x0b, 0x8b, 0x4b, 0xcb, 0x2b, 0xab, 0x6b, 0xeb,
- 0x1b, 0x9b, 0x5b, 0xdb, 0x3b, 0xbb, 0x7b, 0xfb,
- 0x07, 0x87, 0x47, 0xc7, 0x27, 0xa7, 0x67, 0xe7,
- 0x17, 0x97, 0x57, 0xd7, 0x37, 0xb7, 0x77, 0xf7,
- 0x0f, 0x8f, 0x4f, 0xcf, 0x2f, 0xaf, 0x6f, 0xef,
- 0x1f, 0x9f, 0x5f, 0xdf, 0x3f, 0xbf, 0x7f, 0xff,
-};
-
#endif
/*
@@ -397,7 +357,7 @@
/* Read the syndrom pattern from the FPGA and correct the bitorder */
rs_ecc = (volatile unsigned short *)(rtc_from4_fio_base + RTC_FROM4_RS_ECC);
for (i = 0; i < 8; i++) {
- ecc[i] = revbits[(*rs_ecc) & 0xFF];
+ ecc[i] = byte_rev_table[(*rs_ecc) & 0xFF];
rs_ecc++;
}
diff --git a/drivers/mtd/nftlcore.c b/drivers/mtd/nftlcore.c
index b5a5f8d..f4d3854 100644
--- a/drivers/mtd/nftlcore.c
+++ b/drivers/mtd/nftlcore.c
@@ -67,7 +67,7 @@
nftl->mbd.mtd = mtd;
nftl->mbd.devnum = -1;
- nftl->mbd.blksize = 512;
+
nftl->mbd.tr = tr;
if (NFTL_mount(nftl) < 0) {
@@ -147,10 +147,9 @@
ops.ooblen = len;
ops.oobbuf = buf;
ops.datbuf = NULL;
- ops.len = len;
res = mtd->read_oob(mtd, offs & ~(mtd->writesize - 1), &ops);
- *retlen = ops.retlen;
+ *retlen = ops.oobretlen;
return res;
}
@@ -168,10 +167,9 @@
ops.ooblen = len;
ops.oobbuf = buf;
ops.datbuf = NULL;
- ops.len = len;
res = mtd->write_oob(mtd, offs & ~(mtd->writesize - 1), &ops);
- *retlen = ops.retlen;
+ *retlen = ops.oobretlen;
return res;
}
@@ -797,6 +795,7 @@
.name = "nftl",
.major = NFTL_MAJOR,
.part_bits = NFTL_PARTN_BITS,
+ .blksize = 512,
.getgeo = nftl_getgeo,
.readsect = nftl_readblock,
#ifdef CONFIG_NFTL_RW
diff --git a/drivers/mtd/rfd_ftl.c b/drivers/mtd/rfd_ftl.c
index fa4362f..d60cc66 100644
--- a/drivers/mtd/rfd_ftl.c
+++ b/drivers/mtd/rfd_ftl.c
@@ -787,7 +787,6 @@
if (scan_header(part) == 0) {
part->mbd.size = part->sector_count;
- part->mbd.blksize = SECTOR_SIZE;
part->mbd.tr = tr;
part->mbd.devnum = -1;
if (!(mtd->flags & MTD_WRITEABLE))
@@ -829,6 +828,8 @@
.name = "rfd",
.major = RFD_FTL_MAJOR,
.part_bits = PART_BITS,
+ .blksize = SECTOR_SIZE,
+
.readsect = rfd_ftl_readsect,
.writesect = rfd_ftl_writesect,
.getgeo = rfd_ftl_getgeo,
diff --git a/drivers/mtd/ssfdc.c b/drivers/mtd/ssfdc.c
index 79d3bb6..e834cc1 100644
--- a/drivers/mtd/ssfdc.c
+++ b/drivers/mtd/ssfdc.c
@@ -172,13 +172,12 @@
ops.mode = MTD_OOB_RAW;
ops.ooboffs = 0;
- ops.ooblen = mtd->oobsize;
- ops.len = OOB_SIZE;
+ ops.ooblen = OOB_SIZE;
ops.oobbuf = buf;
ops.datbuf = NULL;
ret = mtd->read_oob(mtd, offs, &ops);
- if (ret < 0 || ops.retlen != OOB_SIZE)
+ if (ret < 0 || ops.oobretlen != OOB_SIZE)
return -1;
return 0;
diff --git a/fs/jffs2/wbuf.c b/fs/jffs2/wbuf.c
index b9b7007..dcb18e9 100644
--- a/fs/jffs2/wbuf.c
+++ b/fs/jffs2/wbuf.c
@@ -968,8 +968,7 @@
int oobsize = c->mtd->oobsize;
struct mtd_oob_ops ops;
- ops.len = NR_OOB_SCAN_PAGES * oobsize;
- ops.ooblen = oobsize;
+ ops.ooblen = NR_OOB_SCAN_PAGES * oobsize;
ops.oobbuf = c->oobbuf;
ops.ooboffs = 0;
ops.datbuf = NULL;
@@ -982,10 +981,10 @@
return ret;
}
- if (ops.retlen < ops.len) {
+ if (ops.oobretlen < ops.ooblen) {
D1(printk(KERN_WARNING "jffs2_check_oob_empty(): Read OOB "
"returned short read (%zd bytes not %d) for block "
- "at %08x\n", ops.retlen, ops.len, jeb->offset));
+ "at %08x\n", ops.oobretlen, ops.ooblen, jeb->offset));
return -EIO;
}
@@ -1004,7 +1003,7 @@
}
/* we know, we are aligned :) */
- for (page = oobsize; page < ops.len; page += sizeof(long)) {
+ for (page = oobsize; page < ops.ooblen; page += sizeof(long)) {
long dat = *(long *)(&ops.oobbuf[page]);
if(dat != -1)
return 1;
@@ -1032,7 +1031,6 @@
return 2;
}
- ops.len = oobsize;
ops.ooblen = oobsize;
ops.oobbuf = c->oobbuf;
ops.ooboffs = 0;
@@ -1047,10 +1045,10 @@
return ret;
}
- if (ops.retlen < ops.len) {
+ if (ops.oobretlen < ops.ooblen) {
D1 (printk (KERN_WARNING "jffs2_check_nand_cleanmarker(): "
"Read OOB return short read (%zd bytes not %d) "
- "for block at %08x\n", ops.retlen, ops.len,
+ "for block at %08x\n", ops.oobretlen, ops.ooblen,
jeb->offset));
return -EIO;
}
@@ -1089,8 +1087,7 @@
n.nodetype = cpu_to_je16(JFFS2_NODETYPE_CLEANMARKER);
n.totlen = cpu_to_je32(8);
- ops.len = c->fsdata_len;
- ops.ooblen = c->fsdata_len;;
+ ops.ooblen = c->fsdata_len;
ops.oobbuf = (uint8_t *)&n;
ops.ooboffs = c->fsdata_pos;
ops.datbuf = NULL;
@@ -1104,10 +1101,10 @@
jeb->offset, ret));
return ret;
}
- if (ops.retlen != ops.len) {
+ if (ops.oobretlen != ops.ooblen) {
D1(printk(KERN_WARNING "jffs2_write_nand_cleanmarker(): "
"Short write for block at %08x: %zd not %d\n",
- jeb->offset, ops.retlen, ops.len));
+ jeb->offset, ops.oobretlen, ops.ooblen));
return -EIO;
}
return 0;
diff --git a/include/linux/mtd/blktrans.h b/include/linux/mtd/blktrans.h
index 72fc68c..9a6e2f9 100644
--- a/include/linux/mtd/blktrans.h
+++ b/include/linux/mtd/blktrans.h
@@ -24,7 +24,6 @@
struct mtd_info *mtd;
struct mutex lock;
int devnum;
- int blksize;
unsigned long size;
int readonly;
void *blkcore_priv; /* gendisk in 2.5, devfs_handle in 2.4 */
@@ -36,6 +35,8 @@
char *name;
int major;
int part_bits;
+ int blksize;
+ int blkshift;
/* Access functions */
int (*readsect)(struct mtd_blktrans_dev *dev,
diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h
index 94a443d..4fc391e 100644
--- a/include/linux/mtd/mtd.h
+++ b/include/linux/mtd/mtd.h
@@ -75,15 +75,12 @@
* struct mtd_oob_ops - oob operation operands
* @mode: operation mode
*
- * @len: number of bytes to write/read. When a data buffer is given
- * (datbuf != NULL) this is the number of data bytes. When
- * no data buffer is available this is the number of oob bytes.
+ * @len: number of data bytes to write/read
*
- * @retlen: number of bytes written/read. When a data buffer is given
- * (datbuf != NULL) this is the number of data bytes. When
- * no data buffer is available this is the number of oob bytes.
+ * @retlen: number of data bytes written/read
*
- * @ooblen: number of oob bytes per page
+ * @ooblen: number of oob bytes to write/read
+ * @oobretlen: number of oob bytes written/read
* @ooboffs: offset of oob data in the oob area (only relevant when
* mode = MTD_OOB_PLACE)
* @datbuf: data buffer - if NULL only oob data are read/written
@@ -94,6 +91,7 @@
size_t len;
size_t retlen;
size_t ooblen;
+ size_t oobretlen;
uint32_t ooboffs;
uint8_t *datbuf;
uint8_t *oobbuf;