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- From 25ebef8c87221774de01d1f1de4fb615fcfc6b54 Mon Sep 17 00:00:00 2001
- From: Jason Jin <[email protected]>
- Date: Thu, 4 Aug 2011 09:59:47 +0800
- Subject: [PATCH 34/52] Enable the NFC driver for soft_ecc.
- If enabled YAFFS2 support, soft ecc should be used for the
- nand flash driver.
- Signed-off-by: Jason Jin <[email protected]>
- ---
- drivers/mtd/nand/Kconfig | 6 ++++++
- drivers/mtd/nand/fsl_nfc.c | 12 +++++++++---
- 2 files changed, 15 insertions(+), 3 deletions(-)
- --- a/drivers/mtd/nand/Kconfig
- +++ b/drivers/mtd/nand/Kconfig
- @@ -481,6 +481,12 @@ config MTD_NAND_FSL_NFC
- Enables support for NAND Flash chips wired onto Freescale PowerPC
- processor localbus with User-Programmable Machine support.
-
- +config MTD_NAND_FSL_NFC_SWECC
- + bool "Software ECC"
- + depends on MTD_NAND_FSL_NFC
- + help
- + Use software ECC.
- +
- config MTD_NAND_MXC
- tristate "MXC NAND support"
- depends on ARCH_MX2 || ARCH_MX25 || ARCH_MX3 || ARCH_MX51
- --- a/drivers/mtd/nand/fsl_nfc.c
- +++ b/drivers/mtd/nand/fsl_nfc.c
- @@ -403,9 +403,15 @@ fsl_nfc_command(struct mtd_info *mtd, un
- if (page != -1)
- prv->page = page;
-
- - nfc_set_field(mtd, NFC_FLASH_CONFIG,
- - CONFIG_ECC_MODE_MASK,
- - CONFIG_ECC_MODE_SHIFT, ECC_45_BYTE);
- + if(hardware_ecc)
- + nfc_set_field(mtd, NFC_FLASH_CONFIG,
- + CONFIG_ECC_MODE_MASK,
- + CONFIG_ECC_MODE_SHIFT, ECC_45_BYTE);
- + else
- + /* set ECC BY_PASS */
- + nfc_set_field(mtd, NFC_FLASH_CONFIG,
- + CONFIG_ECC_MODE_MASK,
- + CONFIG_ECC_MODE_SHIFT, ECC_BYPASS);
-
- if (!(page%0x40)) {
- nfc_set_field(mtd, NFC_FLASH_CONFIG,
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