diff options
| author | Khoronzhuk, Ivan <ivan.khoronzhuk@ti.com> | 2014-06-07 04:22:52 +0300 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2014-06-19 17:53:58 -0400 |
| commit | 3e01ed00da98a29fe2b71c6d60309d5b09adc0de (patch) | |
| tree | c5f3baf0116e22ae4ba0a3ecc26095efc3905c02 /arch/arm/include/asm/ti-common/davinci_nand.h | |
| parent | 99907176a05d3282c66f9925f0a656621c1f9b09 (diff) | |
mtd: nand: davinci: add header file for driver definitions
The definitions inside emif_defs.h concern davinci nand driver and
should be in it's header. So create header file for davinci nand
driver and move definitions from emif_defs.h and nand_defs.h to it.
Acked-by: Vitaly Andrianov <vitalya@ti.com>
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@ti.com>
[trini: Fixup more davinci breakage]
Signed-off-by: Tom Rini <trini@ti.com>
Diffstat (limited to 'arch/arm/include/asm/ti-common/davinci_nand.h')
| -rw-r--r-- | arch/arm/include/asm/ti-common/davinci_nand.h | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/arch/arm/include/asm/ti-common/davinci_nand.h b/arch/arm/include/asm/ti-common/davinci_nand.h new file mode 100644 index 0000000000..11407be144 --- /dev/null +++ b/arch/arm/include/asm/ti-common/davinci_nand.h @@ -0,0 +1,98 @@ +/* + * NAND Flash Driver + * + * Copyright (C) 2006-2014 Texas Instruments. + * + * Based on Linux DaVinci NAND driver by TI. + */ + +#ifndef _DAVINCI_NAND_H_ +#define _DAVINCI_NAND_H_ + +#include <linux/mtd/nand.h> +#include <asm/arch/hardware.h> + +#define NAND_READ_START 0x00 +#define NAND_READ_END 0x30 +#define NAND_STATUS 0x70 + +#define MASK_CLE 0x10 +#define MASK_ALE 0x08 + +#ifdef CONFIG_SYS_NAND_MASK_CLE +#undef MASK_CLE +#define MASK_CLE CONFIG_SYS_NAND_MASK_CLE +#endif +#ifdef CONFIG_SYS_NAND_MASK_ALE +#undef MASK_ALE +#define MASK_ALE CONFIG_SYS_NAND_MASK_ALE +#endif + +struct davinci_emif_regs { + uint32_t ercsr; + uint32_t awccr; + uint32_t sdbcr; + uint32_t sdrcr; + union { + uint32_t abncr[4]; + uint32_t ab1cr; + uint32_t ab2cr; + uint32_t ab3cr; + uint32_t ab4cr; + }; + uint32_t sdtimr; + uint32_t ddrsr; + uint32_t ddrphycr; + uint32_t ddrphysr; + uint32_t totar; + uint32_t totactr; + uint32_t ddrphyid_rev; + uint32_t sdsretr; + uint32_t eirr; + uint32_t eimr; + uint32_t eimsr; + uint32_t eimcr; + uint32_t ioctrlr; + uint32_t iostatr; + uint32_t rsvd0; + uint32_t one_nand_cr; + uint32_t nandfcr; + uint32_t nandfsr; + uint32_t rsvd1[2]; + uint32_t nandfecc[4]; + uint32_t rsvd2[15]; + uint32_t nand4biteccload; + uint32_t nand4bitecc[4]; + uint32_t nanderradd1; + uint32_t nanderradd2; + uint32_t nanderrval1; + uint32_t nanderrval2; +}; + +#define davinci_emif_regs \ + ((struct davinci_emif_regs *)DAVINCI_ASYNC_EMIF_CNTRL_BASE) + +#define DAVINCI_NANDFCR_NAND_ENABLE(n) (1 << ((n) - 2)) +#define DAVINCI_NANDFCR_4BIT_ECC_SEL_MASK (3 << 4) +#define DAVINCI_NANDFCR_4BIT_ECC_SEL(n) (((n) - 2) << 4) +#define DAVINCI_NANDFCR_1BIT_ECC_START(n) (1 << (8 + ((n) - 2))) +#define DAVINCI_NANDFCR_4BIT_ECC_START (1 << 12) +#define DAVINCI_NANDFCR_4BIT_CALC_START (1 << 13) +#define DAVINCI_NANDFCR_CS2NAND (1 << 0) + +/* Chip Select setup */ +#define DAVINCI_ABCR_STROBE_SELECT (1 << 31) +#define DAVINCI_ABCR_EXT_WAIT (1 << 30) +#define DAVINCI_ABCR_WSETUP(n) (n << 26) +#define DAVINCI_ABCR_WSTROBE(n) (n << 20) +#define DAVINCI_ABCR_WHOLD(n) (n << 17) +#define DAVINCI_ABCR_RSETUP(n) (n << 13) +#define DAVINCI_ABCR_RSTROBE(n) (n << 7) +#define DAVINCI_ABCR_RHOLD(n) (n << 4) +#define DAVINCI_ABCR_TA(n) (n << 2) +#define DAVINCI_ABCR_ASIZE_16BIT 1 +#define DAVINCI_ABCR_ASIZE_8BIT 0 + +void davinci_nand_init(struct nand_chip *nand); + +#endif |