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| author | pekon gupta <pekon@ti.com> | 2013-11-19 11:02:15 +0530 |
|---|---|---|
| committer | Scott Wood <scottwood@freescale.com> | 2014-03-03 20:09:03 -0600 |
| commit | f5f1f614bda83fae868d5634f86e0098162ceb3b (patch) | |
| tree | 2ff7fa042001df8660f8245c2fb3efc108694613 /arch/arm | |
| parent | eeb72e67619b98d2502fe634a3a5d9953de92ad0 (diff) | |
| download | u-boot-imx-f5f1f614bda83fae868d5634f86e0098162ceb3b.zip u-boot-imx-f5f1f614bda83fae868d5634f86e0098162ceb3b.tar.gz u-boot-imx-f5f1f614bda83fae868d5634f86e0098162ceb3b.tar.bz2 | |
mtd: nand: omap: optimize chip->ecc.hwctl() for H/W ECC schemes
chip->ecc.hwctl() is used for preparing the H/W controller before read/write
NAND accesses (like assigning data-buf, enabling ECC scheme configs, etc.)
Though all ECC schemes in OMAP NAND driver use GPMC controller for generating
ECC syndrome (for both Read/Write accesses). But but in current code
HAM1_ECC and BCHx_ECC schemes implement individual function to achieve this.
This patch
(1) removes omap_hwecc_init() and omap_hwecc_init_bch()
as chip->ecc.hwctl will re-initializeGPMC before every read/write call.
omap_hwecc_init_bch() -> omap_enable_ecc_bch()
(2) merges the GPMC configuration code for all ECC schemes into
single omap_enable_hwecc(), thus adding scalability for future ECC schemes.
omap_enable_hwecc() + omap_enable_ecc_bch() -> omap_enable_hwecc()
Signed-off-by: Pekon Gupta <pekon@ti.com>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/include/asm/omap_gpmc.h | 7 |
1 files changed, 0 insertions, 7 deletions
diff --git a/arch/arm/include/asm/omap_gpmc.h b/arch/arm/include/asm/omap_gpmc.h index d4143ec..6ce5e65 100644 --- a/arch/arm/include/asm/omap_gpmc.h +++ b/arch/arm/include/asm/omap_gpmc.h @@ -14,13 +14,6 @@ #define GPMC_BUF_EMPTY 0 #define GPMC_BUF_FULL 1 -#define ECCCLEAR (0x1 << 8) -#define ECCRESULTREG1 (0x1 << 0) -#define ECCSIZE512BYTE 0xFF -#define ECCSIZE1 (ECCSIZE512BYTE << 22) -#define ECCSIZE0 (ECCSIZE512BYTE << 12) -#define ECCSIZE0SEL (0x000 << 0) - /* Generic ECC Layouts */ /* Large Page x8 NAND device Layout */ #ifdef GPMC_NAND_ECC_LP_x8_LAYOUT |