1c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 2c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru/* Common Flash Interface structures 3c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * See http://support.intel.com/design/flash/technote/index.htm 4c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * $Id: cfi.h,v 1.57 2005/11/15 23:28:17 tpoynor Exp $ 5c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru */ 6c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 7c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#ifndef __MTD_CFI_H__ 8c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define __MTD_CFI_H__ 9c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 10c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#include <linux/delay.h> 11c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#include <linux/types.h> 12c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#include <linux/interrupt.h> 13c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#include <linux/mtd/flashchip.h> 14c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#include <linux/mtd/map.h> 15c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#include <linux/mtd/cfi_endian.h> 16c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 17c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#ifdef CONFIG_MTD_CFI_I1 18c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define cfi_interleave(cfi) 1 19c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define cfi_interleave_is_1(cfi) (cfi_interleave(cfi) == 1) 20c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#else 21c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define cfi_interleave_is_1(cfi) (0) 22c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#endif 23c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 24c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#ifdef CONFIG_MTD_CFI_I2 25c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru# ifdef cfi_interleave 26c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru# undef cfi_interleave 27c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru# define cfi_interleave(cfi) ((cfi)->interleave) 28c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru# else 29c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru# define cfi_interleave(cfi) 2 30c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru# endif 31c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define cfi_interleave_is_2(cfi) (cfi_interleave(cfi) == 2) 32c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#else 33c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define cfi_interleave_is_2(cfi) (0) 34c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#endif 35c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 36c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#ifdef CONFIG_MTD_CFI_I4 37c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru# ifdef cfi_interleave 38c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru# undef cfi_interleave 39c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru# define cfi_interleave(cfi) ((cfi)->interleave) 40c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru# else 41c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru# define cfi_interleave(cfi) 4 42c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru# endif 43c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define cfi_interleave_is_4(cfi) (cfi_interleave(cfi) == 4) 44c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#else 45c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define cfi_interleave_is_4(cfi) (0) 46c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#endif 47c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 48c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#ifdef CONFIG_MTD_CFI_I8 49c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru# ifdef cfi_interleave 50c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru# undef cfi_interleave 51c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru# define cfi_interleave(cfi) ((cfi)->interleave) 52c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru# else 53c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru# define cfi_interleave(cfi) 8 54c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru# endif 55c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define cfi_interleave_is_8(cfi) (cfi_interleave(cfi) == 8) 56c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#else 57c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define cfi_interleave_is_8(cfi) (0) 58c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#endif 59c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 60c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Querustatic inline int cfi_interleave_supported(int i) 61c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru{ 62c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru switch (i) { 63c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#ifdef CONFIG_MTD_CFI_I1 64c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru case 1: 65c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#endif 66c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#ifdef CONFIG_MTD_CFI_I2 67c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru case 2: 68c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#endif 69c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#ifdef CONFIG_MTD_CFI_I4 70c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru case 4: 71c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#endif 72c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#ifdef CONFIG_MTD_CFI_I8 73c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru case 8: 74c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#endif 75c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru return 1; 76c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 77c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru default: 78c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru return 0; 79c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru } 80c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru} 81c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 82c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 83c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru/* NB: these values must represents the number of bytes needed to meet the 84c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * device type (x8, x16, x32). Eg. a 32 bit device is 4 x 8 bytes. 85c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * These numbers are used in calculations. 86c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru */ 87c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define CFI_DEVICETYPE_X8 (8 / 8) 88c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define CFI_DEVICETYPE_X16 (16 / 8) 89c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define CFI_DEVICETYPE_X32 (32 / 8) 90c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define CFI_DEVICETYPE_X64 (64 / 8) 91c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 92c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru/* NB: We keep these structures in memory in HOST byteorder, except 93c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * where individually noted. 94c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru */ 95c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 96c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru/* Basic Query Structure */ 97c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Querustruct cfi_ident { 98c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t qry[3]; 99c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint16_t P_ID; 100c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint16_t P_ADR; 101c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint16_t A_ID; 102c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint16_t A_ADR; 103c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t VccMin; 104c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t VccMax; 105c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t VppMin; 106c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t VppMax; 107c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t WordWriteTimeoutTyp; 108c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t BufWriteTimeoutTyp; 109c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t BlockEraseTimeoutTyp; 110c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t ChipEraseTimeoutTyp; 111c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t WordWriteTimeoutMax; 112c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t BufWriteTimeoutMax; 113c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t BlockEraseTimeoutMax; 114c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t ChipEraseTimeoutMax; 115c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t DevSize; 116c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint16_t InterfaceDesc; 117c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint16_t MaxBufWriteSize; 118c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t NumEraseRegions; 119c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint32_t EraseRegionInfo[0]; /* Not host ordered */ 120c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru} __attribute__((packed)); 121c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 122c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru/* Extended Query Structure for both PRI and ALT */ 123c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 124c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Querustruct cfi_extquery { 125c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t pri[3]; 126c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t MajorVersion; 127c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t MinorVersion; 128c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru} __attribute__((packed)); 129c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 130c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru/* Vendor-Specific PRI for Intel/Sharp Extended Command Set (0x0001) */ 131c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 132c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Querustruct cfi_pri_intelext { 133c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t pri[3]; 134c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t MajorVersion; 135c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t MinorVersion; 136c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint32_t FeatureSupport; /* if bit 31 is set then an additional uint32_t feature 137c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru block follows - FIXME - not currently supported */ 138c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t SuspendCmdSupport; 139c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint16_t BlkStatusRegMask; 140c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t VccOptimal; 141c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t VppOptimal; 142c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t NumProtectionFields; 143c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint16_t ProtRegAddr; 144c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t FactProtRegSize; 145c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t UserProtRegSize; 146c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t extra[0]; 147c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru} __attribute__((packed)); 148c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 149c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Querustruct cfi_intelext_otpinfo { 150c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint32_t ProtRegAddr; 151c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint16_t FactGroups; 152c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t FactProtRegSize; 153c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint16_t UserGroups; 154c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t UserProtRegSize; 155c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru} __attribute__((packed)); 156c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 157c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Querustruct cfi_intelext_blockinfo { 158c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint16_t NumIdentBlocks; 159c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint16_t BlockSize; 160c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint16_t MinBlockEraseCycles; 161c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t BitsPerCell; 162c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t BlockCap; 163c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru} __attribute__((packed)); 164c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 165c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Querustruct cfi_intelext_regioninfo { 166c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint16_t NumIdentPartitions; 167c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t NumOpAllowed; 168c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t NumOpAllowedSimProgMode; 169c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t NumOpAllowedSimEraMode; 170c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t NumBlockTypes; 171c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru struct cfi_intelext_blockinfo BlockTypes[1]; 172c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru} __attribute__((packed)); 173c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 174c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Querustruct cfi_intelext_programming_regioninfo { 175c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t ProgRegShift; 176c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t Reserved1; 177c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t ControlValid; 178c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t Reserved2; 179c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t ControlInvalid; 180c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t Reserved3; 181c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru} __attribute__((packed)); 182c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 183c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru/* Vendor-Specific PRI for AMD/Fujitsu Extended Command Set (0x0002) */ 184c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 185c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Querustruct cfi_pri_amdstd { 186c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t pri[3]; 187c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t MajorVersion; 188c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t MinorVersion; 189c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t SiliconRevision; /* bits 1-0: Address Sensitive Unlock */ 190c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t EraseSuspend; 191c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t BlkProt; 192c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t TmpBlkUnprotect; 193c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t BlkProtUnprot; 194c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t SimultaneousOps; 195c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t BurstMode; 196c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t PageMode; 197c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t VppMin; 198c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t VppMax; 199c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t TopBottom; 200c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru} __attribute__((packed)); 201c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 202c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru/* Vendor-Specific PRI for Atmel chips (command set 0x0002) */ 203c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 204c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Querustruct cfi_pri_atmel { 205c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t pri[3]; 206c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t MajorVersion; 207c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t MinorVersion; 208c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t Features; 209c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t BottomBoot; 210c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t BurstMode; 211c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t PageMode; 212c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru} __attribute__((packed)); 213c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 214c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Querustruct cfi_pri_query { 215c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t NumFields; 216c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint32_t ProtField[1]; /* Not host ordered */ 217c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru} __attribute__((packed)); 218c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 219c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Querustruct cfi_bri_query { 220c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t PageModeReadCap; 221c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint8_t NumFields; 222c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint32_t ConfField[1]; /* Not host ordered */ 223c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru} __attribute__((packed)); 224c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 225c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define P_ID_NONE 0x0000 226c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define P_ID_INTEL_EXT 0x0001 227c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define P_ID_AMD_STD 0x0002 228c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define P_ID_INTEL_STD 0x0003 229c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define P_ID_AMD_EXT 0x0004 230c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define P_ID_WINBOND 0x0006 231c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define P_ID_ST_ADV 0x0020 232c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define P_ID_MITSUBISHI_STD 0x0100 233c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define P_ID_MITSUBISHI_EXT 0x0101 234c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define P_ID_SST_PAGE 0x0102 235c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define P_ID_INTEL_PERFORMANCE 0x0200 236c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define P_ID_INTEL_DATA 0x0210 237c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define P_ID_RESERVED 0xffff 238c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 239c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 240c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define CFI_MODE_CFI 1 241c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define CFI_MODE_JEDEC 0 242c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 243c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Querustruct cfi_private { 244c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint16_t cmdset; 245c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru void *cmdset_priv; 246c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru int interleave; 247c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru int device_type; 248c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru int cfi_mode; /* Are we a JEDEC device pretending to be CFI? */ 249c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru int addr_unlock1; 250c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru int addr_unlock2; 251c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru struct mtd_info *(*cmdset_setup)(struct map_info *); 252c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru struct cfi_ident *cfiq; /* For now only one. We insist that all devs 253c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru must be of the same type. */ 254c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru int mfr, id; 255c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru int numchips; 256c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru unsigned long chipshift; /* Because they're of the same type */ 257c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru const char *im_name; /* inter_module name for cmdset_setup */ 258c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru struct flchip chips[0]; /* per-chip data structure for each chip */ 259c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru}; 260c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 261c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru/* 262c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * Returns the command address according to the given geometry. 263c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru */ 264c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Querustatic inline uint32_t cfi_build_cmd_addr(uint32_t cmd_ofs, int interleave, int type) 265c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru{ 266c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru return (cmd_ofs * type) * interleave; 267c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru} 268c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 269c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru/* 270c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * Transforms the CFI command for the given geometry (bus width & interleave). 271c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * It looks too long to be inline, but in the common case it should almost all 272c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * get optimised away. 273c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru */ 274c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Querustatic inline map_word cfi_build_cmd(u_long cmd, struct map_info *map, struct cfi_private *cfi) 275c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru{ 276c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru map_word val = { {0} }; 277c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru int wordwidth, words_per_bus, chip_mode, chips_per_word; 278c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru unsigned long onecmd; 279c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru int i; 280c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 281c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru /* We do it this way to give the compiler a fighting chance 282c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru of optimising away all the crap for 'bankwidth' larger than 283c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru an unsigned long, in the common case where that support is 284c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru disabled */ 285c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru if (map_bankwidth_is_large(map)) { 286c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru wordwidth = sizeof(unsigned long); 287c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru words_per_bus = (map_bankwidth(map)) / wordwidth; // i.e. normally 1 288c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru } else { 289c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru wordwidth = map_bankwidth(map); 290c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru words_per_bus = 1; 291c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru } 292c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 293c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru chip_mode = map_bankwidth(map) / cfi_interleave(cfi); 294c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru chips_per_word = wordwidth * cfi_interleave(cfi) / map_bankwidth(map); 295c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 296c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru /* First, determine what the bit-pattern should be for a single 297c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru device, according to chip mode and endianness... */ 298c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru switch (chip_mode) { 299c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru default: BUG(); 300c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru case 1: 301c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru onecmd = cmd; 302c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru break; 303c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru case 2: 304c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru onecmd = cpu_to_cfi16(cmd); 305c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru break; 306c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru case 4: 307c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru onecmd = cpu_to_cfi32(cmd); 308c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru break; 309c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru } 310c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 311c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru /* Now replicate it across the size of an unsigned long, or 312c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru just to the bus width as appropriate */ 313c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru switch (chips_per_word) { 314c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru default: BUG(); 315c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#if BITS_PER_LONG >= 64 316c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru case 8: 317c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru onecmd |= (onecmd << (chip_mode * 32)); 318c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#endif 319c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru case 4: 320c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru onecmd |= (onecmd << (chip_mode * 16)); 321c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru case 2: 322c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru onecmd |= (onecmd << (chip_mode * 8)); 323c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru case 1: 324c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru ; 325c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru } 326c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 327c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru /* And finally, for the multi-word case, replicate it 328c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru in all words in the structure */ 329c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru for (i=0; i < words_per_bus; i++) { 330c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru val.x[i] = onecmd; 331c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru } 332c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 333c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru return val; 334c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru} 335c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define CMD(x) cfi_build_cmd((x), map, cfi) 336c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 337c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 338c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Querustatic inline unsigned long cfi_merge_status(map_word val, struct map_info *map, 339c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru struct cfi_private *cfi) 340c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru{ 341c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru int wordwidth, words_per_bus, chip_mode, chips_per_word; 342c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru unsigned long onestat, res = 0; 343c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru int i; 344c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 345c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru /* We do it this way to give the compiler a fighting chance 346c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru of optimising away all the crap for 'bankwidth' larger than 347c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru an unsigned long, in the common case where that support is 348c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru disabled */ 349c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru if (map_bankwidth_is_large(map)) { 350c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru wordwidth = sizeof(unsigned long); 351c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru words_per_bus = (map_bankwidth(map)) / wordwidth; // i.e. normally 1 352c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru } else { 353c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru wordwidth = map_bankwidth(map); 354c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru words_per_bus = 1; 355c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru } 356c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 357c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru chip_mode = map_bankwidth(map) / cfi_interleave(cfi); 358c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru chips_per_word = wordwidth * cfi_interleave(cfi) / map_bankwidth(map); 359c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 360c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru onestat = val.x[0]; 361c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru /* Or all status words together */ 362c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru for (i=1; i < words_per_bus; i++) { 363c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru onestat |= val.x[i]; 364c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru } 365c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 366c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru res = onestat; 367c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru switch(chips_per_word) { 368c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru default: BUG(); 369c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#if BITS_PER_LONG >= 64 370c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru case 8: 371c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru res |= (onestat >> (chip_mode * 32)); 372c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#endif 373c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru case 4: 374c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru res |= (onestat >> (chip_mode * 16)); 375c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru case 2: 376c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru res |= (onestat >> (chip_mode * 8)); 377c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru case 1: 378c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru ; 379c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru } 380c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 381c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru /* Last, determine what the bit-pattern should be for a single 382c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru device, according to chip mode and endianness... */ 383c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru switch (chip_mode) { 384c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru case 1: 385c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru break; 386c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru case 2: 387c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru res = cfi16_to_cpu(res); 388c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru break; 389c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru case 4: 390c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru res = cfi32_to_cpu(res); 391c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru break; 392c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru default: BUG(); 393c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru } 394c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru return res; 395c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru} 396c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 397c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define MERGESTATUS(x) cfi_merge_status((x), map, cfi) 398c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 399c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 400c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru/* 401c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * Sends a CFI command to a bank of flash for the given geometry. 402c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * 403c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * Returns the offset in flash where the command was written. 404c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * If prev_val is non-null, it will be set to the value at the command address, 405c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * before the command was written. 406c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru */ 407c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Querustatic inline uint32_t cfi_send_gen_cmd(u_char cmd, uint32_t cmd_addr, uint32_t base, 408c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru struct map_info *map, struct cfi_private *cfi, 409c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru int type, map_word *prev_val) 410c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru{ 411c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru map_word val; 412c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint32_t addr = base + cfi_build_cmd_addr(cmd_addr, cfi_interleave(cfi), type); 413c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 414c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru val = cfi_build_cmd(cmd, map, cfi); 415c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 416c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru if (prev_val) 417c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru *prev_val = map_read(map, addr); 418c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 419c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru map_write(map, val, addr); 420c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 421c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru return addr - base; 422c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru} 423c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 424c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Querustatic inline uint8_t cfi_read_query(struct map_info *map, uint32_t addr) 425c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru{ 426c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru map_word val = map_read(map, addr); 427c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 428c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru if (map_bankwidth_is_1(map)) { 429c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru return val.x[0]; 430c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru } else if (map_bankwidth_is_2(map)) { 431c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru return cfi16_to_cpu(val.x[0]); 432c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru } else { 433c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru /* No point in a 64-bit byteswap since that would just be 434c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru swapping the responses from different chips, and we are 435c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru only interested in one chip (a representative sample) */ 436c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru return cfi32_to_cpu(val.x[0]); 437c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru } 438c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru} 439c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 440c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Querustatic inline uint16_t cfi_read_query16(struct map_info *map, uint32_t addr) 441c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru{ 442c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru map_word val = map_read(map, addr); 443c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 444c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru if (map_bankwidth_is_1(map)) { 445c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru return val.x[0] & 0xff; 446c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru } else if (map_bankwidth_is_2(map)) { 447c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru return cfi16_to_cpu(val.x[0]); 448c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru } else { 449c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru /* No point in a 64-bit byteswap since that would just be 450c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru swapping the responses from different chips, and we are 451c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru only interested in one chip (a representative sample) */ 452c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru return cfi32_to_cpu(val.x[0]); 453c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru } 454c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru} 455c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 456c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Querustatic inline void cfi_udelay(int us) 457c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru{ 458c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru if (us >= 1000) { 459c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru msleep((us+999)/1000); 460c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru } else { 461c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru udelay(us); 462c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru cond_resched(); 463c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru } 464c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru} 465c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 466c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Querustruct cfi_extquery *cfi_read_pri(struct map_info *map, uint16_t adr, uint16_t size, 467c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru const char* name); 468c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Querustruct cfi_fixup { 469c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint16_t mfr; 470c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru uint16_t id; 471c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru void (*fixup)(struct mtd_info *mtd, void* param); 472c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru void* param; 473c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru}; 474c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 475c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define CFI_MFR_ANY 0xffff 476c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define CFI_ID_ANY 0xffff 477c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 478c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define CFI_MFR_AMD 0x0001 479c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define CFI_MFR_ATMEL 0x001F 480c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define CFI_MFR_ST 0x0020 /* STMicroelectronics */ 481c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 482c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queruvoid cfi_fixup(struct mtd_info *mtd, struct cfi_fixup* fixups); 483c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 484c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Querutypedef int (*varsize_frob_t)(struct map_info *map, struct flchip *chip, 485c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru unsigned long adr, int len, void *thunk); 486c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 487c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queruint cfi_varsize_frob(struct mtd_info *mtd, varsize_frob_t frob, 488c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru loff_t ofs, size_t len, void *thunk); 489c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 490c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 491c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#endif /* __MTD_CFI_H__ */ 492