lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

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

Browse Source 
* git://git.infradead.org/mtd-2.6: (58 commits)
  mtd: jedec_probe: add PSD4256G6V id
  mtd: OneNand support for Nomadik 8815 SoC (on NHK8815 board)
  mtd: nand: driver for Nomadik 8815 SoC (on NHK8815 board)
  m25p80: Add Spansion S25FL129P serial flashes
  jffs2: Use SLAB_HWCACHE_ALIGN for jffs2_raw_{dirent,inode} slabs
  mtd: sh_flctl: register sh_flctl using platform_driver_probe()
  mtd: nand: txx9ndfmc: transfer 512 byte at a time if possible
  mtd: nand: fix tmio_nand ecc correction
  mtd: nand: add __nand_correct_data helper function
  mtd: cfi_cmdset_0002: add 0xFF intolerance for M29W128G
  mtd: inftl: fix fold chain block number
  mtd: jedec: fix compilation problem with I28F640C3B definition
  mtd: nand: fix ECC Correction bug for SMC ordering for NDFC driver
  mtd: ofpart: Check availability of reg property instead of name property
  driver/Makefile: Initialize "mtd" and "spi" before "net"
  mtd: omap: adding DMA mode support in nand prefetch/post-write
  mtd: omap: add support for nand prefetch-read and post-write
  mtd: add nand support for w90p910 (v2)
  mtd: maps: add mtd-ram support to physmap_of
  mtd: pxa3xx_nand: add single-bit error corrections reporting
  ...
This commit is contained in:
Linus Torvalds
2009-09-23 10:07:49 -07:00
parent 15f964bed0 e1070211f7
commit a7c367b95a
64 changed files with 2798 additions and 254 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
arch/arm/mach-omap2/board-apollon.c
View File

@@ -87,7 +87,7 @@ static struct mtd_partition apollon_partitions[] = {
},
};
static struct flash_platform_data apollon_flash_data = {
static struct onenand_platform_data apollon_flash_data = {
.parts = apollon_partitions,
.nr_parts = ARRAY_SIZE(apollon_partitions),
};
@@ -99,7 +99,7 @@ static struct resource apollon_flash_resource[] = {
};
static struct platform_device apollon_onenand_device = {
.name = "onenand",
.name = "onenand-flash",
.id = -1,
.dev = {
.platform_data = &apollon_flash_data,

63
arch/arm/mach-omap2/gpmc.c
View File

@@ -57,6 +57,11 @@
#define GPMC_CHUNK_SHIFT 24 /* 16 MB */
#define GPMC_SECTION_SHIFT 28 /* 128 MB */
#define PREFETCH_FIFOTHRESHOLD (0x40 << 8)
#define CS_NUM_SHIFT 24
#define ENABLE_PREFETCH (0x1 << 7)
#define DMA_MPU_MODE 2
static struct resource gpmc_mem_root;
static struct resource gpmc_cs_mem[GPMC_CS_NUM];
static DEFINE_SPINLOCK(gpmc_mem_lock);
@@ -386,6 +391,63 @@ void gpmc_cs_free(int cs)
}
EXPORT_SYMBOL(gpmc_cs_free);
/**
* gpmc_prefetch_enable - configures and starts prefetch transfer
* @cs: nand cs (chip select) number
* @dma_mode: dma mode enable (1) or disable (0)
* @u32_count: number of bytes to be transferred
* @is_write: prefetch read(0) or write post(1) mode
*/
int gpmc_prefetch_enable(int cs, int dma_mode,
unsigned int u32_count, int is_write)
{
uint32_t prefetch_config1;
if (!(gpmc_read_reg(GPMC_PREFETCH_CONTROL))) {
/* Set the amount of bytes to be prefetched */
gpmc_write_reg(GPMC_PREFETCH_CONFIG2, u32_count);
/* Set dma/mpu mode, the prefetch read / post write and
* enable the engine. Set which cs is has requested for.
*/
prefetch_config1 = ((cs << CS_NUM_SHIFT) |
PREFETCH_FIFOTHRESHOLD |
ENABLE_PREFETCH |
(dma_mode << DMA_MPU_MODE) |
(0x1 & is_write));
gpmc_write_reg(GPMC_PREFETCH_CONFIG1, prefetch_config1);
} else {
return -EBUSY;
}
/* Start the prefetch engine */
gpmc_write_reg(GPMC_PREFETCH_CONTROL, 0x1);
return 0;
}
EXPORT_SYMBOL(gpmc_prefetch_enable);
/**
* gpmc_prefetch_reset - disables and stops the prefetch engine
*/
void gpmc_prefetch_reset(void)
{
/* Stop the PFPW engine */
gpmc_write_reg(GPMC_PREFETCH_CONTROL, 0x0);
/* Reset/disable the PFPW engine */
gpmc_write_reg(GPMC_PREFETCH_CONFIG1, 0x0);
}
EXPORT_SYMBOL(gpmc_prefetch_reset);
/**
* gpmc_prefetch_status - reads prefetch status of engine
*/
int gpmc_prefetch_status(void)
{
return gpmc_read_reg(GPMC_PREFETCH_STATUS);
}
EXPORT_SYMBOL(gpmc_prefetch_status);
static void __init gpmc_mem_init(void)
{
int cs;
@@ -452,6 +514,5 @@ void __init gpmc_init(void)
l &= 0x03 << 3;
l |= (0x02 << 3) | (1 << 0);
gpmc_write_reg(GPMC_SYSCONFIG, l);
gpmc_mem_init();
}