AcoSail/kernel_optimize_test
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Merge git://git.infradead.org/mtd-2.6

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* git://git.infradead.org/mtd-2.6:
  mtd: nand: Fix probe of Samsung NAND chips
  mtd: nand: Fix regression in BBM detection
  pxa3xx: fix ns2cycle equation
This commit is contained in:
Linus Torvalds 2010-08-21 12:47:05 -07:00
commit 69b26c7ad0
2 changed files with 5 additions and 8 deletions
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11
drivers/mtd/nand/nand_base.c
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@ -2866,6 +2866,7 @@ static struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd,
*/
if (id_data[0] == id_data[6] && id_data[1] == id_data[7] &&
id_data[0] == NAND_MFR_SAMSUNG &&
(chip->cellinfo & NAND_CI_CELLTYPE_MSK) &&
id_data[5] != 0x00) {
/* Calc pagesize */
mtd->writesize = 2048 << (extid & 0x03);
@ -2934,14 +2935,10 @@ static struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd,
chip->chip_shift = ffs((unsigned)(chip->chipsize >> 32)) + 32 - 1;
/* Set the bad block position */
if (!(busw & NAND_BUSWIDTH_16) && (*maf_id == NAND_MFR_STMICRO ||
(*maf_id == NAND_MFR_SAMSUNG &&
mtd->writesize == 512) ||
*maf_id == NAND_MFR_AMD))
chip->badblockpos = NAND_SMALL_BADBLOCK_POS;
else
if (mtd->writesize > 512 || (busw & NAND_BUSWIDTH_16))
chip->badblockpos = NAND_LARGE_BADBLOCK_POS;
else
chip->badblockpos = NAND_SMALL_BADBLOCK_POS;
/* Get chip options, preserve non chip based options */
chip->options &= ~NAND_CHIPOPTIONS_MSK;

2
drivers/mtd/nand/pxa3xx_nand.c
View File

@ -363,7 +363,7 @@ static struct pxa3xx_nand_flash *builtin_flash_types[] = {
#define tAR_NDTR1(r) (((r) >> 0) & 0xf)
/* convert nano-seconds to nand flash controller clock cycles */
#define ns2cycle(ns, clk) (int)(((ns) * (clk / 1000000) / 1000) - 1)
#define ns2cycle(ns, clk) (int)((ns) * (clk / 1000000) / 1000)
/* convert nand flash controller clock cycles to nano-seconds */
#define cycle2ns(c, clk) ((((c) + 1) * 1000000 + clk / 500) / (clk / 1000))