205 lines
6.0 KiB
C
205 lines
6.0 KiB
C
/*
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* Error Corrected Code Controller (ECC) - System peripherals regsters.
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* Based on AT91SAM9260 datasheet revision B.
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#ifndef ATMEL_NAND_ECC_H
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#define ATMEL_NAND_ECC_H
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#define ATMEL_ECC_CR 0x00 /* Control register */
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#define ATMEL_ECC_RST (1 << 0) /* Reset parity */
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#define ATMEL_ECC_MR 0x04 /* Mode register */
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#define ATMEL_ECC_PAGESIZE (3 << 0) /* Page Size */
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#define ATMEL_ECC_PAGESIZE_528 (0)
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#define ATMEL_ECC_PAGESIZE_1056 (1)
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#define ATMEL_ECC_PAGESIZE_2112 (2)
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#define ATMEL_ECC_PAGESIZE_4224 (3)
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#define ATMEL_ECC_SR 0x08 /* Status register */
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#define ATMEL_ECC_RECERR (1 << 0) /* Recoverable Error */
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#define ATMEL_ECC_ECCERR (1 << 1) /* ECC Single Bit Error */
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#define ATMEL_ECC_MULERR (1 << 2) /* Multiple Errors */
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#define ATMEL_ECC_PR 0x0c /* Parity register */
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#define ATMEL_ECC_BITADDR (0xf << 0) /* Bit Error Address */
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#define ATMEL_ECC_WORDADDR (0xfff << 4) /* Word Error Address */
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#define ATMEL_ECC_NPR 0x10 /* NParity register */
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#define ATMEL_ECC_NPARITY (0xffff << 0) /* NParity */
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/* Register access macros for PMECC */
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#define pmecc_readl(addr, reg) \
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readl(&addr->reg)
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#define pmecc_readb(addr, reg) \
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readb(&addr->reg)
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#define pmecc_writel(addr, reg, value) \
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writel((value), &addr->reg)
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/* PMECC Register Definitions */
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#define PMECC_MAX_SECTOR_NUM 8
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struct pmecc_regs {
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u32 cfg; /* 0x00 PMECC Configuration Register */
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u32 sarea; /* 0x04 PMECC Spare Area Size Register */
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u32 saddr; /* 0x08 PMECC Start Address Register */
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u32 eaddr; /* 0x0C PMECC End Address Register */
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u32 clk; /* 0x10 PMECC Clock Control Register */
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u32 ctrl; /* 0x14 PMECC Control Register */
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u32 sr; /* 0x18 PMECC Status Register */
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u32 ier; /* 0x1C PMECC Interrupt Enable Register */
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u32 idr; /* 0x20 PMECC Interrupt Disable Register */
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u32 imr; /* 0x24 PMECC Interrupt Mask Register */
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u32 isr; /* 0x28 PMECC Interrupt Status Register */
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u32 reserved0[5]; /* 0x2C-0x3C Reserved */
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/* 0x40 + sector_num * (0x40), Redundancy Registers */
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struct {
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#ifdef CONFIG_SAMA5D2
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u8 ecc[56]; /* PMECC Generated Redundancy Byte Per Sector */
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u32 reserved1[2];
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#else
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u8 ecc[44]; /* PMECC Generated Redundancy Byte Per Sector */
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u32 reserved1[5];
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#endif
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} ecc_port[PMECC_MAX_SECTOR_NUM];
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/* 0x240 + sector_num * (0x40) Remainder Registers */
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struct {
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#ifdef CONFIG_SAMA5D2
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u32 rem[16];
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#else
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u32 rem[12];
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u32 reserved2[4];
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#endif
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} rem_port[PMECC_MAX_SECTOR_NUM];
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u32 reserved3[16]; /* 0x440-0x47C Reserved */
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};
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/* For PMECC Configuration Register */
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#define PMECC_CFG_BCH_ERR2 (0 << 0)
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#define PMECC_CFG_BCH_ERR4 (1 << 0)
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#define PMECC_CFG_BCH_ERR8 (2 << 0)
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#define PMECC_CFG_BCH_ERR12 (3 << 0)
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#define PMECC_CFG_BCH_ERR24 (4 << 0)
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#define PMECC_CFG_BCH_ERR32 (5 << 0)
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#define PMECC_CFG_SECTOR512 (0 << 4)
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#define PMECC_CFG_SECTOR1024 (1 << 4)
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#define PMECC_CFG_PAGE_1SECTOR (0 << 8)
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#define PMECC_CFG_PAGE_2SECTORS (1 << 8)
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#define PMECC_CFG_PAGE_4SECTORS (2 << 8)
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#define PMECC_CFG_PAGE_8SECTORS (3 << 8)
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#define PMECC_CFG_READ_OP (0 << 12)
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#define PMECC_CFG_WRITE_OP (1 << 12)
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#define PMECC_CFG_SPARE_ENABLE (1 << 16)
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#define PMECC_CFG_SPARE_DISABLE (0 << 16)
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#define PMECC_CFG_AUTO_ENABLE (1 << 20)
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#define PMECC_CFG_AUTO_DISABLE (0 << 20)
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/* For PMECC Clock Control Register */
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#define PMECC_CLK_133MHZ (2 << 0)
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/* For PMECC Control Register */
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#define PMECC_CTRL_RST (1 << 0)
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#define PMECC_CTRL_DATA (1 << 1)
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#define PMECC_CTRL_USER (1 << 2)
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#define PMECC_CTRL_ENABLE (1 << 4)
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#define PMECC_CTRL_DISABLE (1 << 5)
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/* For PMECC Status Register */
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#define PMECC_SR_BUSY (1 << 0)
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#define PMECC_SR_ENABLE (1 << 4)
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/* PMERRLOC Register Definitions */
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struct pmecc_errloc_regs {
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u32 elcfg; /* 0x00 Error Location Configuration Register */
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u32 elprim; /* 0x04 Error Location Primitive Register */
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u32 elen; /* 0x08 Error Location Enable Register */
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u32 eldis; /* 0x0C Error Location Disable Register */
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u32 elsr; /* 0x10 Error Location Status Register */
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u32 elier; /* 0x14 Error Location Interrupt Enable Register */
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u32 elidr; /* 0x08 Error Location Interrupt Disable Register */
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u32 elimr; /* 0x0C Error Location Interrupt Mask Register */
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u32 elisr; /* 0x20 Error Location Interrupt Status Register */
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u32 reserved0; /* 0x24 Reserved */
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#ifdef CONFIG_SAMA5D2
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u32 sigma[33]; /* 0x28-0xA8 Error Location Sigma Registers */
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u32 el[32]; /* 0xAC-0x128 Error Location Registers */
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/*
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* 0x12C-0x1FC:
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* Reserved for SAMA5D2.
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*/
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u32 reserved1[53];
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#else
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u32 sigma[25]; /* 0x28-0x88 Error Location Sigma Registers */
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u32 el[24]; /* 0x8C-0xE8 Error Location Registers */
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u32 reserved1[5]; /* 0xEC-0xFC Reserved */
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#endif
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/*
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* SAMA5 chip HSMC registers start here. But for 9X5 chip it is just
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* reserved.
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*
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* Offset 0x00-0xF8:
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*/
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u32 reserved2[63];
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/*
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* Offset 0xFC:
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* PMECC version for AT91SAM9X5, AT91SAM9N12.
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* HSMC version for SAMA5D3, SAMA5D4. Can refer as PMECC version.
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*/
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u32 version;
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};
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/* For Error Location Configuration Register */
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#define PMERRLOC_ELCFG_SECTOR_512 (0 << 0)
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#define PMERRLOC_ELCFG_SECTOR_1024 (1 << 0)
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#define PMERRLOC_ELCFG_NUM_ERRORS(n) ((n) << 16)
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/* For Error Location Disable Register */
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#define PMERRLOC_DISABLE (1 << 0)
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/* For Error Location Interrupt Status Register */
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#ifdef CONFIG_SAMA5D2
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#define PMERRLOC_ERR_NUM_MASK (0x3f << 8)
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#else
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#define PMERRLOC_ERR_NUM_MASK (0x1f << 8)
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#endif
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#define PMERRLOC_CALC_DONE (1 << 0)
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/* PMECC IP version */
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#define PMECC_VERSION_SAMA5D2 0x210
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#define PMECC_VERSION_SAMA5D4 0x113
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#define PMECC_VERSION_SAMA5D3 0x112
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#define PMECC_VERSION_AT91SAM9N12 0x102
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#define PMECC_VERSION_AT91SAM9X5 0x101
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/* Galois field dimension */
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#define PMECC_GF_DIMENSION_13 13
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#define PMECC_GF_DIMENSION_14 14
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/* Primitive Polynomial used by PMECC */
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#define PMECC_GF_13_PRIMITIVE_POLY 0x201b
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#define PMECC_GF_14_PRIMITIVE_POLY 0x4443
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#define PMECC_INDEX_TABLE_SIZE_512 0x2000
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#define PMECC_INDEX_TABLE_SIZE_1024 0x4000
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#define PMECC_MAX_TIMEOUT_US (100 * 1000)
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/* Reserved bytes in oob area */
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#define PMECC_OOB_RESERVED_BYTES 2
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#endif
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