| /* |
| * 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 |
