GIT 9333907084da2b05db787dba3e714d0be7c84f36 git://git.infradead.org/mtd-2.6.git commit 118af321b24529d546cad1c4b6fccf02cd838384 Author: Robert P. J. Day Date: Fri Mar 23 11:27:01 2007 -0400 [MTD] Delete unused header file linux/mtd/iflash.h. Delete the unreferenced header file include/linux/mtd/iflash.h. Signed-off-by: Robert P. J. Day Signed-off-by: David Woodhouse commit 8e5368a1e230a87220ef0d238584002e4a429ce3 Author: David Woodhouse Date: Fri Mar 23 10:40:04 2007 +0000 [MTD] [NAND] Remember timing settings for CAFÉ NAND controller. We'll need them for suspend/resume. Signed-off-by: David Woodhouse commit 3a6effe81fa0bd2fb9c6c5ecde665492536733e3 Author: Robert P. J. Day Date: Sat Mar 10 03:57:25 2007 -0500 [JFFS2] Remove superfluous source file fs/jffs2/comprtest.c Delete the obsolete source file fs/jffs2/comprtest.c. Signed-off-by: Robert P. J. Day Signed-off-by: David Woodhouse commit 21d31f1f7c8f832324fb55eb4b1397b16258904e Author: Joern Engel Date: Tue Feb 20 20:22:22 2007 +0100 [PATCH] [MTD] block2mtd: remove readahead code Over the years there was a slow trickle of complaints against the readahead code. Most of them concerned performance, Peter Zijlstra stumbled over it when working unrelated changes and I believe there was an actual bug report. Oh, Andrew Morton also complained about duplicating code from mm/readahead.c. It is just not worth it. On flash media like usb sticks, readahead will make things go slow - very slow. On spinning disks, readahead may be a win, but this is definitely not the place to add it. Signed-off-by: Jörn Engel commit 8870530a4053add56a2c0eb90a3669facb9f7117 Author: Joern Engel Date: Tue Feb 20 20:21:41 2007 +0100 [PATCH] [MTD] block2mtd: remove warning drivers/mtd/devices/block2mtd.c:311:9: warning: symbol 'dev' shadows an earlier one drivers/mtd/devices/block2mtd.c:294:23: originally declared here Signed-off-by: Jörn Engel commit 0ffb74ccc06a112042adfaf8229684b78202bcae Author: Joern Engel Date: Tue Feb 20 20:20:58 2007 +0100 [PATCH] [MTD] block2mtd: remove casts Remove two casts - they were not only pointless, but outright harmful. Spotted by Felix Fietkau Signed-off-by: Jörn Engel drivers/mtd/devices/block2mtd.c | 67 +-------- drivers/mtd/nand/cafe.c | 25 +-- fs/jffs2/comprtest.c | 307 --------------------------------------- include/linux/mtd/iflash.h | 98 ------------ 4 files changed, 20 insertions(+), 477 deletions(-) diff --git a/drivers/mtd/devices/block2mtd.c b/drivers/mtd/devices/block2mtd.c index f9f2ce7..ce47544 100644 --- a/drivers/mtd/devices/block2mtd.c +++ b/drivers/mtd/devices/block2mtd.c @@ -40,56 +40,9 @@ struct block2mtd_dev { static LIST_HEAD(blkmtd_device_list); -#define PAGE_READAHEAD 64 -static void cache_readahead(struct address_space *mapping, int index) +static struct page* page_read(struct address_space *mapping, int index) { filler_t *filler = (filler_t*)mapping->a_ops->readpage; - int i, pagei; - unsigned ret = 0; - unsigned long end_index; - struct page *page; - LIST_HEAD(page_pool); - struct inode *inode = mapping->host; - loff_t isize = i_size_read(inode); - - if (!isize) { - INFO("iSize=0 in cache_readahead\n"); - return; - } - - end_index = ((isize - 1) >> PAGE_CACHE_SHIFT); - - read_lock_irq(&mapping->tree_lock); - for (i = 0; i < PAGE_READAHEAD; i++) { - pagei = index + i; - if (pagei > end_index) { - INFO("Overrun end of disk in cache readahead\n"); - break; - } - page = radix_tree_lookup(&mapping->page_tree, pagei); - if (page && (!i)) - break; - if (page) - continue; - read_unlock_irq(&mapping->tree_lock); - page = page_cache_alloc_cold(mapping); - read_lock_irq(&mapping->tree_lock); - if (!page) - break; - page->index = pagei; - list_add(&page->lru, &page_pool); - ret++; - } - read_unlock_irq(&mapping->tree_lock); - if (ret) - read_cache_pages(mapping, &page_pool, filler, NULL); -} - - -static struct page* page_readahead(struct address_space *mapping, int index) -{ - filler_t *filler = (filler_t*)mapping->a_ops->readpage; - cache_readahead(mapping, index); return read_cache_page(mapping, index, filler, NULL); } @@ -105,14 +58,14 @@ static int _block2mtd_erase(struct block u_long *max; while (pages) { - page = page_readahead(mapping, index); + page = page_read(mapping, index); if (!page) return -ENOMEM; if (IS_ERR(page)) return PTR_ERR(page); - max = (u_long*)page_address(page) + PAGE_SIZE; - for (p=(u_long*)page_address(page); pblkdev->bd_inode->i_mapping, index); + page = page_read(dev->blkdev->bd_inode->i_mapping, index); if (!page) return -ENOMEM; if (IS_ERR(page)) @@ -213,8 +165,7 @@ static int _block2mtd_write(struct block cpylen = len; // this page len = len - cpylen; - // Get page - page = page_readahead(mapping, index); + page = page_read(mapping, index); if (!page) return -ENOMEM; if (IS_ERR(page)) @@ -308,9 +259,9 @@ #ifndef MODULE /* We might not have rootfs mounted at this point. Try to resolve the device name by other means. */ - dev_t dev = name_to_dev_t(devname); - if (dev != 0) { - bdev = open_by_devnum(dev, FMODE_WRITE | FMODE_READ); + dev_t devt = name_to_dev_t(devname); + if (devt) { + bdev = open_by_devnum(devt, FMODE_WRITE | FMODE_READ); } } #endif diff --git a/drivers/mtd/nand/cafe.c b/drivers/mtd/nand/cafe.c index fd6bb3e..c328a75 100644 --- a/drivers/mtd/nand/cafe.c +++ b/drivers/mtd/nand/cafe.c @@ -530,7 +530,6 @@ static int __devinit cafe_nand_probe(str { struct mtd_info *mtd; struct cafe_priv *cafe; - uint32_t timing1, timing2, timing3; uint32_t ctrl; int err = 0; @@ -587,21 +586,19 @@ static int __devinit cafe_nand_probe(str } if (numtimings == 3) { - timing1 = timing[0]; - timing2 = timing[1]; - timing3 = timing[2]; cafe_dev_dbg(&cafe->pdev->dev, "Using provided timings (%08x %08x %08x)\n", - timing1, timing2, timing3); + timing[0], timing[1], timing[2]); } else { - timing1 = cafe_readl(cafe, NAND_TIMING1); - timing2 = cafe_readl(cafe, NAND_TIMING2); - timing3 = cafe_readl(cafe, NAND_TIMING3); + timing[0] = cafe_readl(cafe, NAND_TIMING1); + timing[1] = cafe_readl(cafe, NAND_TIMING2); + timing[2] = cafe_readl(cafe, NAND_TIMING3); - if (timing1 | timing2 | timing3) { - cafe_dev_dbg(&cafe->pdev->dev, "Timing registers already set (%08x %08x %08x)\n", timing1, timing2, timing3); + if (timing[0] | timing[1] | timing[2]) { + cafe_dev_dbg(&cafe->pdev->dev, "Timing registers already set (%08x %08x %08x)\n", + timing[0], timing[1], timing[2]); } else { dev_warn(&cafe->pdev->dev, "Timing registers unset; using most conservative defaults\n"); - timing1 = timing2 = timing3 = 0xffffffff; + timing[0] = timing[1] = timing[2] = 0xffffffff; } } @@ -609,9 +606,9 @@ static int __devinit cafe_nand_probe(str cafe_writel(cafe, 1, NAND_RESET); cafe_writel(cafe, 0, NAND_RESET); - cafe_writel(cafe, timing1, NAND_TIMING1); - cafe_writel(cafe, timing2, NAND_TIMING2); - cafe_writel(cafe, timing3, NAND_TIMING3); + cafe_writel(cafe, timing[0], NAND_TIMING1); + cafe_writel(cafe, timing[1], NAND_TIMING2); + cafe_writel(cafe, timing[2], NAND_TIMING3); cafe_writel(cafe, 0xffffffff, NAND_IRQ_MASK); err = request_irq(pdev->irq, &cafe_nand_interrupt, IRQF_SHARED, diff --git a/fs/jffs2/comprtest.c b/fs/jffs2/comprtest.c deleted file mode 100644 index f0fb8be..0000000 --- a/fs/jffs2/comprtest.c +++ /dev/null @@ -1,307 +0,0 @@ -/* $Id: comprtest.c,v 1.6 2005/11/07 11:14:38 gleixner Exp $ */ - 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-int jffs2_decompress(unsigned char comprtype, unsigned char *cdata_in, - unsigned char *data_out, uint32_t cdatalen, uint32_t datalen); -unsigned char jffs2_compress(unsigned char *data_in, unsigned char *cpage_out, - uint32_t *datalen, uint32_t *cdatalen); - -int init_module(void ) { - unsigned char comprtype; - uint32_t c, d; - int ret; - - printk("Original data: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n", - testdata[0],testdata[1],testdata[2],testdata[3], - testdata[4],testdata[5],testdata[6],testdata[7], - testdata[8],testdata[9],testdata[10],testdata[11], - testdata[12],testdata[13],testdata[14],testdata[15]); - d = TESTDATA_LEN; - c = TESTDATA_LEN; - comprtype = jffs2_compress(testdata, comprbuf, &d, &c); - - printk("jffs2_compress used compression type %d. Compressed size %d, uncompressed size %d\n", - comprtype, c, d); - printk("Compressed data: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n", - comprbuf[0],comprbuf[1],comprbuf[2],comprbuf[3], - comprbuf[4],comprbuf[5],comprbuf[6],comprbuf[7], - comprbuf[8],comprbuf[9],comprbuf[10],comprbuf[11], - comprbuf[12],comprbuf[13],comprbuf[14],comprbuf[15]); - - ret = jffs2_decompress(comprtype, comprbuf, decomprbuf, c, d); - printk("jffs2_decompress returned %d\n", ret); - printk("Decompressed data: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n", - decomprbuf[0],decomprbuf[1],decomprbuf[2],decomprbuf[3], - decomprbuf[4],decomprbuf[5],decomprbuf[6],decomprbuf[7], - decomprbuf[8],decomprbuf[9],decomprbuf[10],decomprbuf[11], - decomprbuf[12],decomprbuf[13],decomprbuf[14],decomprbuf[15]); - if (memcmp(decomprbuf, testdata, d)) - printk("Compression and decompression corrupted data\n"); - else - printk("Compression good for %d bytes\n", d); - return 1; -} diff --git a/include/linux/mtd/iflash.h b/include/linux/mtd/iflash.h deleted file mode 100644 index 9aa5b4f..0000000 --- a/include/linux/mtd/iflash.h +++ /dev/null @@ -1,98 +0,0 @@ -/* $Id: iflash.h,v 1.2 2000/11/13 18:01:54 dwmw2 Exp $ */ - -#ifndef __MTD_IFLASH_H__ -#define __MTD_IFLASH_H__ - -/* Extended CIS registers for Series 2 and 2+ cards */ -/* The registers are all offsets from 0x4000 */ -#define CISREG_CSR 0x0100 -#define CISREG_WP 0x0104 -#define CISREG_RDYBSY 0x0140 - -/* Extended CIS registers for Series 2 cards */ -#define CISREG_SLEEP 0x0118 -#define CISREG_RDY_MASK 0x0120 -#define CISREG_RDY_STATUS 0x0130 - -/* Extended CIS registers for Series 2+ cards */ -#define CISREG_VCR 0x010c - -/* Card Status Register */ -#define CSR_SRESET 0x20 /* Soft reset */ -#define CSR_CMWP 0x10 /* Common memory write protect */ -#define CSR_PWRDOWN 0x08 /* Power down status */ -#define CSR_CISWP 0x04 /* Common memory CIS WP */ -#define CSR_WP 0x02 /* Mechanical write protect */ -#define CSR_READY 0x01 /* Ready/busy status */ - -/* Write Protection Register */ -#define WP_BLKEN 0x04 /* Enable block locking */ -#define WP_CMWP 0x02 /* Common memory write protect */ -#define WP_CISWP 0x01 /* Common memory CIS WP */ - -/* Voltage Control Register */ -#define VCR_VCC_LEVEL 0x80 /* 0 = 5V, 1 = 3.3V */ -#define VCR_VPP_VALID 0x02 /* Vpp Valid */ -#define VCR_VPP_GEN 0x01 /* Integrated Vpp generator */ - -/* Ready/Busy Mode Register */ -#define RDYBSY_RACK 0x02 /* Ready acknowledge */ -#define RDYBSY_MODE 0x01 /* 1 = high performance */ - -#define LOW(x) ((x) & 0xff) - -/* 28F008SA-Compatible Command Set */ -#define IF_READ_ARRAY 0xffff -#define IF_INTEL_ID 0x9090 -#define IF_READ_CSR 0x7070 -#define IF_CLEAR_CSR 0x5050 -#define IF_WRITE 0x4040 -#define IF_BLOCK_ERASE 0x2020 -#define IF_ERASE_SUSPEND 0xb0b0 -#define IF_CONFIRM 0xd0d0 - -/* 28F016SA Performance Enhancement Commands */ -#define IF_READ_PAGE 0x7575 -#define IF_PAGE_SWAP 0x7272 -#define IF_SINGLE_LOAD 0x7474 -#define IF_SEQ_LOAD 0xe0e0 -#define IF_PAGE_WRITE 0x0c0c -#define IF_RDY_MODE 0x9696 -#define IF_RDY_LEVEL 0x0101 -#define IF_RDY_PULSE_WRITE 0x0202 -#define IF_RDY_PULSE_ERASE 0x0303 -#define IF_RDY_DISABLE 0x0404 -#define IF_LOCK_BLOCK 0x7777 -#define IF_UPLOAD_STATUS 0x9797 -#define IF_READ_ESR 0x7171 -#define IF_ERASE_UNLOCKED 0xa7a7 -#define IF_SLEEP 0xf0f0 -#define IF_ABORT 0x8080 -#define IF_UPLOAD_DEVINFO 0x9999 - -/* Definitions for Compatible Status Register */ -#define CSR_WR_READY 0x8080 /* Write state machine status */ -#define CSR_ERA_SUSPEND 0x4040 /* Erase suspend status */ -#define CSR_ERA_ERR 0x2020 /* Erase status */ -#define CSR_WR_ERR 0x1010 /* Data write status */ -#define CSR_VPP_LOW 0x0808 /* Vpp status */ - -/* Definitions for Global Status Register */ -#define GSR_WR_READY 0x8080 /* Write state machine status */ -#define GSR_OP_SUSPEND 0x4040 /* Operation suspend status */ -#define GSR_OP_ERR 0x2020 /* Device operation status */ -#define GSR_SLEEP 0x1010 /* Device sleep status */ -#define GSR_QUEUE_FULL 0x0808 /* Queue status */ -#define GSR_PAGE_AVAIL 0x0404 /* Page buffer available status */ -#define GSR_PAGE_READY 0x0202 /* Page buffer status */ -#define GSR_PAGE_SELECT 0x0101 /* Page buffer select status */ - -/* Definitions for Block Status Register */ -#define BSR_READY 0x8080 /* Block status */ -#define BSR_UNLOCK 0x4040 /* Block lock status */ -#define BSR_FAILED 0x2020 /* Block operation status */ -#define BSR_ABORTED 0x1010 /* Operation abort status */ -#define BSR_QUEUE_FULL 0x0808 /* Queue status */ -#define BSR_VPP_LOW 0x0404 /* Vpp status */ - -#endif /* __MTD_IFLASH_H__ */