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---
r: 106421
b: refs/heads/master
c: d4f4c0a
h: refs/heads/master
i:
  106419: 3db49e5
v: v3
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Håvard Skinnemoen authored and David Woodhouse committed Jun 7, 2008
1 parent 55cf718 commit d0e9078
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Showing 5 changed files with 17 additions and 20 deletions.
2 changes: 1 addition & 1 deletion [refs]
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---
refs/heads/master: 62fd71fe710886ba449e932ad7877f4a8340c2d4
refs/heads/master: d4f4c0aa8e36f69e46360b3d3569dc15d6099894
17 changes: 9 additions & 8 deletions trunk/drivers/mtd/nand/Kconfig
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Expand Up @@ -271,22 +271,23 @@ config MTD_NAND_CS553X

If you say "m", the module will be called "cs553x_nand.ko".

config MTD_NAND_AT91
config MTD_NAND_ATMEL
bool "Support for NAND Flash / SmartMedia on AT91"
depends on ARCH_AT91
help
Enables support for NAND Flash / Smart Media Card interface
on Atmel AT91 processors.
choice
prompt "ECC management for NAND Flash / SmartMedia on AT91"
depends on MTD_NAND_AT91
depends on MTD_NAND_ATMEL

config MTD_NAND_AT91_ECC_HW
config MTD_NAND_ATMEL_ECC_HW
bool "Hardware ECC"
depends on ARCH_AT91SAM9263 || ARCH_AT91SAM9260
help
Uses hardware ECC provided by the at91sam9260/at91sam9263 chip
instead of software ECC.
Use hardware ECC instead of software ECC when the chip
supports it.

The hardware ECC controller is capable of single bit error
correction and 2-bit random detection per page.

Expand All @@ -296,16 +297,16 @@ config MTD_NAND_AT91_ECC_HW

If unsure, say Y

config MTD_NAND_AT91_ECC_SOFT
config MTD_NAND_ATMEL_ECC_SOFT
bool "Software ECC"
help
Uses software ECC.
Use software ECC.

NB : hardware and software ECC schemes are incompatible.
If you switch from one to another, you'll have to erase your
mtd partition.

config MTD_NAND_AT91_ECC_NONE
config MTD_NAND_ATMEL_ECC_NONE
bool "No ECC (testing only, DANGEROUS)"
depends on DEBUG_KERNEL
help
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2 changes: 1 addition & 1 deletion trunk/drivers/mtd/nand/Makefile
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Expand Up @@ -23,7 +23,7 @@ obj-$(CONFIG_MTD_NAND_TS7250) += ts7250.o
obj-$(CONFIG_MTD_NAND_NANDSIM) += nandsim.o
obj-$(CONFIG_MTD_NAND_CS553X) += cs553x_nand.o
obj-$(CONFIG_MTD_NAND_NDFC) += ndfc.o
obj-$(CONFIG_MTD_NAND_AT91) += at91_nand.o
obj-$(CONFIG_MTD_NAND_ATMEL) += atmel_nand.o
obj-$(CONFIG_MTD_NAND_CM_X270) += cmx270_nand.o
obj-$(CONFIG_MTD_NAND_BASLER_EXCITE) += excite_nandflash.o
obj-$(CONFIG_MTD_NAND_PXA3xx) += pxa3xx_nand.o
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@@ -1,6 +1,4 @@
/*
* drivers/mtd/nand/at91_nand.c
*
* Copyright (C) 2003 Rick Bronson
*
* Derived from drivers/mtd/nand/autcpu12.c
Expand Down Expand Up @@ -36,13 +34,13 @@

#include <asm/arch/board.h>

#ifdef CONFIG_MTD_NAND_AT91_ECC_HW
#ifdef CONFIG_MTD_NAND_ATMEL_ECC_HW
#define hard_ecc 1
#else
#define hard_ecc 0
#endif

#ifdef CONFIG_MTD_NAND_AT91_ECC_NONE
#ifdef CONFIG_MTD_NAND_ATMEL_ECC_NONE
#define no_ecc 1
#else
#define no_ecc 0
Expand All @@ -54,7 +52,7 @@
#define ecc_writel(add, reg, value) \
__raw_writel((value), add + AT91_ECC_##reg)

#include <asm/arch/at91_ecc.h> /* AT91SAM9260/3 ECC registers */
#include "atmel_nand_ecc.h" /* Hardware ECC registers */

/* oob layout for large page size
* bad block info is on bytes 0 and 1
Expand Down Expand Up @@ -588,5 +586,5 @@ module_exit(at91_nand_exit);

MODULE_LICENSE("GPL");
MODULE_AUTHOR("Rick Bronson");
MODULE_DESCRIPTION("NAND/SmartMedia driver for AT91RM9200 / AT91SAM9");
MODULE_DESCRIPTION("NAND/SmartMedia driver for AT91 / AVR32");
MODULE_ALIAS("platform:at91_nand");
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@@ -1,6 +1,4 @@
/*
* include/asm-arm/arch-at91/at91_ecc.h
*
* Error Corrected Code Controller (ECC) - System peripherals regsters.
* Based on AT91SAM9260 datasheet revision B.
*
Expand All @@ -10,8 +8,8 @@
* option) any later version.
*/

#ifndef AT91_ECC_H
#define AT91_ECC_H
#ifndef ATMEL_NAND_ECC_H
#define ATMEL_NAND_ECC_H

#define AT91_ECC_CR 0x00 /* Control register */
#define AT91_ECC_RST (1 << 0) /* Reset parity */
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