1 /* SPDX-License-Identifier: GPL-2.0+ */
3 * Error Corrected Code Controller (ECC) - System peripherals regsters.
4 * Based on AT91SAM9260 datasheet revision B.
7 #ifndef ATMEL_NAND_ECC_H
8 #define ATMEL_NAND_ECC_H
10 #define ATMEL_ECC_CR 0x00 /* Control register */
11 #define ATMEL_ECC_RST (1 << 0) /* Reset parity */
13 #define ATMEL_ECC_MR 0x04 /* Mode register */
14 #define ATMEL_ECC_PAGESIZE (3 << 0) /* Page Size */
15 #define ATMEL_ECC_PAGESIZE_528 (0)
16 #define ATMEL_ECC_PAGESIZE_1056 (1)
17 #define ATMEL_ECC_PAGESIZE_2112 (2)
18 #define ATMEL_ECC_PAGESIZE_4224 (3)
20 #define ATMEL_ECC_SR 0x08 /* Status register */
21 #define ATMEL_ECC_RECERR (1 << 0) /* Recoverable Error */
22 #define ATMEL_ECC_ECCERR (1 << 1) /* ECC Single Bit Error */
23 #define ATMEL_ECC_MULERR (1 << 2) /* Multiple Errors */
25 #define ATMEL_ECC_PR 0x0c /* Parity register */
26 #define ATMEL_ECC_BITADDR (0xf << 0) /* Bit Error Address */
27 #define ATMEL_ECC_WORDADDR (0xfff << 4) /* Word Error Address */
29 #define ATMEL_ECC_NPR 0x10 /* NParity register */
30 #define ATMEL_ECC_NPARITY (0xffff << 0) /* NParity */
32 /* Register access macros for PMECC */
33 #define pmecc_readl(addr, reg) \
36 #define pmecc_readb(addr, reg) \
39 #define pmecc_writel(addr, reg, value) \
40 writel((value), &addr->reg)
42 /* PMECC Register Definitions */
43 #define PMECC_MAX_SECTOR_NUM 8
45 u32 cfg; /* 0x00 PMECC Configuration Register */
46 u32 sarea; /* 0x04 PMECC Spare Area Size Register */
47 u32 saddr; /* 0x08 PMECC Start Address Register */
48 u32 eaddr; /* 0x0C PMECC End Address Register */
49 u32 clk; /* 0x10 PMECC Clock Control Register */
50 u32 ctrl; /* 0x14 PMECC Control Register */
51 u32 sr; /* 0x18 PMECC Status Register */
52 u32 ier; /* 0x1C PMECC Interrupt Enable Register */
53 u32 idr; /* 0x20 PMECC Interrupt Disable Register */
54 u32 imr; /* 0x24 PMECC Interrupt Mask Register */
55 u32 isr; /* 0x28 PMECC Interrupt Status Register */
56 u32 reserved0[5]; /* 0x2C-0x3C Reserved */
58 /* 0x40 + sector_num * (0x40), Redundancy Registers */
61 u8 ecc[56]; /* PMECC Generated Redundancy Byte Per Sector */
64 u8 ecc[44]; /* PMECC Generated Redundancy Byte Per Sector */
67 } ecc_port[PMECC_MAX_SECTOR_NUM];
69 /* 0x240 + sector_num * (0x40) Remainder Registers */
77 } rem_port[PMECC_MAX_SECTOR_NUM];
78 u32 reserved3[16]; /* 0x440-0x47C Reserved */
81 /* For PMECC Configuration Register */
82 #define PMECC_CFG_BCH_ERR2 (0 << 0)
83 #define PMECC_CFG_BCH_ERR4 (1 << 0)
84 #define PMECC_CFG_BCH_ERR8 (2 << 0)
85 #define PMECC_CFG_BCH_ERR12 (3 << 0)
86 #define PMECC_CFG_BCH_ERR24 (4 << 0)
87 #define PMECC_CFG_BCH_ERR32 (5 << 0)
89 #define PMECC_CFG_SECTOR512 (0 << 4)
90 #define PMECC_CFG_SECTOR1024 (1 << 4)
92 #define PMECC_CFG_PAGE_1SECTOR (0 << 8)
93 #define PMECC_CFG_PAGE_2SECTORS (1 << 8)
94 #define PMECC_CFG_PAGE_4SECTORS (2 << 8)
95 #define PMECC_CFG_PAGE_8SECTORS (3 << 8)
97 #define PMECC_CFG_READ_OP (0 << 12)
98 #define PMECC_CFG_WRITE_OP (1 << 12)
100 #define PMECC_CFG_SPARE_ENABLE (1 << 16)
101 #define PMECC_CFG_SPARE_DISABLE (0 << 16)
103 #define PMECC_CFG_AUTO_ENABLE (1 << 20)
104 #define PMECC_CFG_AUTO_DISABLE (0 << 20)
106 /* For PMECC Clock Control Register */
107 #define PMECC_CLK_133MHZ (2 << 0)
109 /* For PMECC Control Register */
110 #define PMECC_CTRL_RST (1 << 0)
111 #define PMECC_CTRL_DATA (1 << 1)
112 #define PMECC_CTRL_USER (1 << 2)
113 #define PMECC_CTRL_ENABLE (1 << 4)
114 #define PMECC_CTRL_DISABLE (1 << 5)
116 /* For PMECC Status Register */
117 #define PMECC_SR_BUSY (1 << 0)
118 #define PMECC_SR_ENABLE (1 << 4)
120 /* PMERRLOC Register Definitions */
121 struct pmecc_errloc_regs {
122 u32 elcfg; /* 0x00 Error Location Configuration Register */
123 u32 elprim; /* 0x04 Error Location Primitive Register */
124 u32 elen; /* 0x08 Error Location Enable Register */
125 u32 eldis; /* 0x0C Error Location Disable Register */
126 u32 elsr; /* 0x10 Error Location Status Register */
127 u32 elier; /* 0x14 Error Location Interrupt Enable Register */
128 u32 elidr; /* 0x08 Error Location Interrupt Disable Register */
129 u32 elimr; /* 0x0C Error Location Interrupt Mask Register */
130 u32 elisr; /* 0x20 Error Location Interrupt Status Register */
131 u32 reserved0; /* 0x24 Reserved */
132 #ifdef CONFIG_SAMA5D2
133 u32 sigma[33]; /* 0x28-0xA8 Error Location Sigma Registers */
134 u32 el[32]; /* 0xAC-0x128 Error Location Registers */
138 * Reserved for SAMA5D2.
142 u32 sigma[25]; /* 0x28-0x88 Error Location Sigma Registers */
143 u32 el[24]; /* 0x8C-0xE8 Error Location Registers */
144 u32 reserved1[5]; /* 0xEC-0xFC Reserved */
148 * SAMA5 chip HSMC registers start here. But for 9X5 chip it is just
157 * PMECC version for AT91SAM9X5, AT91SAM9N12.
158 * HSMC version for SAMA5D3, SAMA5D4. Can refer as PMECC version.
163 /* For Error Location Configuration Register */
164 #define PMERRLOC_ELCFG_SECTOR_512 (0 << 0)
165 #define PMERRLOC_ELCFG_SECTOR_1024 (1 << 0)
166 #define PMERRLOC_ELCFG_NUM_ERRORS(n) ((n) << 16)
168 /* For Error Location Disable Register */
169 #define PMERRLOC_DISABLE (1 << 0)
171 /* For Error Location Interrupt Status Register */
172 #ifdef CONFIG_SAMA5D2
173 #define PMERRLOC_ERR_NUM_MASK (0x3f << 8)
175 #define PMERRLOC_ERR_NUM_MASK (0x1f << 8)
178 #define PMERRLOC_CALC_DONE (1 << 0)
180 /* PMECC IP version */
181 #define PMECC_VERSION_SAMA5D2 0x210
182 #define PMECC_VERSION_SAMA5D4 0x113
183 #define PMECC_VERSION_SAMA5D3 0x112
184 #define PMECC_VERSION_AT91SAM9N12 0x102
185 #define PMECC_VERSION_AT91SAM9X5 0x101
187 /* Galois field dimension */
188 #define PMECC_GF_DIMENSION_13 13
189 #define PMECC_GF_DIMENSION_14 14
191 /* Primitive Polynomial used by PMECC */
192 #define PMECC_GF_13_PRIMITIVE_POLY 0x201b
193 #define PMECC_GF_14_PRIMITIVE_POLY 0x4443
195 #define PMECC_INDEX_TABLE_SIZE_512 0x2000
196 #define PMECC_INDEX_TABLE_SIZE_1024 0x4000
198 #define PMECC_MAX_TIMEOUT_US (100 * 1000)
200 /* Reserved bytes in oob area */
201 #define PMECC_OOB_RESERVED_BYTES 2