xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

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

Browse Source 
* git://git.infradead.org/mtd-2.6: (120 commits)
  [MTD] Fix mtdoops.c compilation
  [MTD] [NOR] fix startup lock when using multiple nor flash chips
  [MTD] [DOC200x] eccbuf is statically defined and always evaluate to true
  [MTD] Fix maps/physmap.c compilation with CONFIG_PM
  [MTD] onenand: Add panic_write function to the onenand driver
  [MTD] mtdoops: Use the panic_write function when present
  [MTD] Add mtd panic_write function pointer
  [MTD] [NAND] Freescale enhanced Local Bus Controller FCM NAND support.
  [MTD] physmap.c: Add support for multiple resources
  [MTD] [NAND] Fix misparenthesization introduced by commit 78b65179...
  [MTD] [NAND] Fix Blackfin NFC ECC calculating bug with page size 512 bytes
  [MTD] [NAND] Remove wrong operation in PM function of the BF54x NFC driver
  [MTD] [NAND] Remove unused variable in plat_nand_remove
  [MTD] Unlocking all Intel flash that is locked on power up.
  [MTD] [NAND] at91_nand: Make mtdparts option can override board info
  [MTD] mtdoops: Various minor cleanups
  [MTD] mtdoops: Ensure sequential write to the buffer
  [MTD] mtdoops: Perform write operations in a workqueue
  [MTD] mtdoops: Add further error return code checking
  [MTD] [NOR] Test devtype, not definition in flash_probe(), drivers/mtd/devices/lart.c
  ...
This commit is contained in:
Linus Torvalds
2008-02-07 10:20:31 -08:00
parent f0f1b3364a f9f7dd2223
commit a8e98d6d51
66 changed files with 4871 additions and 2108 deletions
Download Patch File Download Diff File Expand all files Collapse all files

48
drivers/mtd/nand/s3c2410.c
View File

@@ -120,6 +120,8 @@ struct s3c2410_nand_info {
int sel_bit;
int mtd_count;
unsigned long save_nfconf;
enum s3c_cpu_type cpu_type;
};
@@ -364,23 +366,21 @@ static int s3c2410_nand_correct_data(struct mtd_info *mtd, u_char *dat,
((diff2 ^ (diff2 >> 1)) & 0x55) == 0x55) {
/* calculate the bit position of the error */
bit = (diff2 >> 2) & 1;
bit |= (diff2 >> 3) & 2;
bit |= (diff2 >> 4) & 4;
bit = ((diff2 >> 3) & 1) |
((diff2 >> 4) & 2) |
((diff2 >> 5) & 4);
/* calculate the byte position of the error */
byte = (diff1 << 1) & 0x80;
byte |= (diff1 << 2) & 0x40;
byte |= (diff1 << 3) & 0x20;
byte |= (diff1 << 4) & 0x10;
byte |= (diff0 >> 3) & 0x08;
byte |= (diff0 >> 2) & 0x04;
byte |= (diff0 >> 1) & 0x02;
byte |= (diff0 >> 0) & 0x01;
byte |= (diff2 << 8) & 0x100;
byte = ((diff2 << 7) & 0x100) |
((diff1 << 0) & 0x80) |
((diff1 << 1) & 0x40) |
((diff1 << 2) & 0x20) |
((diff1 << 3) & 0x10) |
((diff0 >> 4) & 0x08) |
((diff0 >> 3) & 0x04) |
((diff0 >> 2) & 0x02) |
((diff0 >> 1) & 0x01);
dev_dbg(info->device, "correcting error bit %d, byte %d\n",
bit, byte);
@@ -399,7 +399,7 @@ static int s3c2410_nand_correct_data(struct mtd_info *mtd, u_char *dat,
if ((diff0 & ~(1<<fls(diff0))) == 0)
return 1;
return 0;
return -1;
}
/* ECC functions
@@ -810,6 +810,16 @@ static int s3c24xx_nand_suspend(struct platform_device *dev, pm_message_t pm)
struct s3c2410_nand_info *info = platform_get_drvdata(dev);
if (info) {
info->save_nfconf = readl(info->regs + S3C2410_NFCONF);
/* For the moment, we must ensure nFCE is high during
* the time we are suspended. This really should be
* handled by suspending the MTDs we are using, but
* that is currently not the case. */
writel(info->save_nfconf | info->sel_bit,
info->regs + S3C2410_NFCONF);
if (!allow_clk_stop(info))
clk_disable(info->clk);
}
@@ -820,11 +830,19 @@ static int s3c24xx_nand_suspend(struct platform_device *dev, pm_message_t pm)
static int s3c24xx_nand_resume(struct platform_device *dev)
{
struct s3c2410_nand_info *info = platform_get_drvdata(dev);
unsigned long nfconf;
if (info) {
clk_enable(info->clk);
s3c2410_nand_inithw(info, dev);
/* Restore the state of the nFCE line. */
nfconf = readl(info->regs + S3C2410_NFCONF);
nfconf &= ~info->sel_bit;
nfconf |= info->save_nfconf & info->sel_bit;
writel(nfconf, info->regs + S3C2410_NFCONF);
if (allow_clk_stop(info))
clk_disable(info->clk);
}