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drivers/spi/ich.h
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/* * Copyright (c) 2011 The Chromium OS Authors. * * SPDX-License-Identifier: GPL-2.0+ * * This file is derived from the flashrom project. */ #ifndef _ICH_H_ #define _ICH_H_ struct ich7_spi_regs { uint16_t spis; uint16_t spic; uint32_t spia; uint64_t spid[8]; uint64_t _pad; uint32_t bbar; uint16_t preop; uint16_t optype; uint8_t opmenu[8]; } __packed; struct ich9_spi_regs { uint32_t bfpr; /* 0x00 */ uint16_t hsfs; uint16_t hsfc; uint32_t faddr; uint32_t _reserved0; uint32_t fdata[16]; /* 0x10 */ uint32_t frap; /* 0x50 */ uint32_t freg[5]; uint32_t _reserved1[3]; uint32_t pr[5]; /* 0x74 */ uint32_t _reserved2[2]; uint8_t ssfs; /* 0x90 */ uint8_t ssfc[3]; uint16_t preop; /* 0x94 */ uint16_t optype; uint8_t opmenu[8]; /* 0x98 */ uint32_t bbar; uint8_t _reserved3[12]; uint32_t fdoc; /* 0xb0 */ uint32_t fdod; uint8_t _reserved4[8]; uint32_t afc; /* 0xc0 */ uint32_t lvscc; uint32_t uvscc; uint8_t _reserved5[4]; uint32_t fpb; /* 0xd0 */ uint8_t _reserved6[28]; uint32_t srdl; /* 0xf0 */ uint32_t srdc; uint32_t scs; uint32_t bcr; } __packed; enum { SPIS_SCIP = 0x0001, SPIS_GRANT = 0x0002, SPIS_CDS = 0x0004, SPIS_FCERR = 0x0008, SSFS_AEL = 0x0010, SPIS_LOCK = 0x8000, SPIS_RESERVED_MASK = 0x7ff0, SSFS_RESERVED_MASK = 0x7fe2 }; enum { SPIC_SCGO = 0x000002, SPIC_ACS = 0x000004, SPIC_SPOP = 0x000008, SPIC_DBC = 0x003f00, SPIC_DS = 0x004000, SPIC_SME = 0x008000, SSFC_SCF_MASK = 0x070000, SSFC_RESERVED = 0xf80000, /* Mask for speed byte, biuts 23:16 of SSFC */ SSFC_SCF_33MHZ = 0x01, }; enum { HSFS_FDONE = 0x0001, HSFS_FCERR = 0x0002, HSFS_AEL = 0x0004, HSFS_BERASE_MASK = 0x0018, HSFS_BERASE_SHIFT = 3, HSFS_SCIP = 0x0020, HSFS_FDOPSS = 0x2000, HSFS_FDV = 0x4000, HSFS_FLOCKDN = 0x8000 }; enum { HSFC_FGO = 0x0001, HSFC_FCYCLE_MASK = 0x0006, HSFC_FCYCLE_SHIFT = 1, HSFC_FDBC_MASK = 0x3f00, HSFC_FDBC_SHIFT = 8, HSFC_FSMIE = 0x8000 }; enum { ICH_MAX_CMD_LEN = 5, }; struct spi_trans { uint8_t cmd[ICH_MAX_CMD_LEN]; int cmd_len; const uint8_t *out; uint32_t bytesout; uint8_t *in; uint32_t bytesin; uint8_t type; uint8_t opcode; uint32_t offset; }; #define SPI_OPCODE_WRSR 0x01 #define SPI_OPCODE_PAGE_PROGRAM 0x02 #define SPI_OPCODE_READ 0x03 #define SPI_OPCODE_WRDIS 0x04 #define SPI_OPCODE_RDSR 0x05 #define SPI_OPCODE_WREN 0x06 #define SPI_OPCODE_FAST_READ 0x0b #define SPI_OPCODE_ERASE_SECT 0x20 #define SPI_OPCODE_READ_ID 0x9f #define SPI_OPCODE_ERASE_BLOCK 0xd8 #define SPI_OPCODE_TYPE_READ_NO_ADDRESS 0 #define SPI_OPCODE_TYPE_WRITE_NO_ADDRESS 1 #define SPI_OPCODE_TYPE_READ_WITH_ADDRESS 2 #define SPI_OPCODE_TYPE_WRITE_WITH_ADDRESS 3 #define SPI_OPMENU_0 SPI_OPCODE_WRSR #define SPI_OPTYPE_0 SPI_OPCODE_TYPE_WRITE_NO_ADDRESS #define SPI_OPMENU_1 SPI_OPCODE_PAGE_PROGRAM #define SPI_OPTYPE_1 SPI_OPCODE_TYPE_WRITE_WITH_ADDRESS #define SPI_OPMENU_2 SPI_OPCODE_READ #define SPI_OPTYPE_2 SPI_OPCODE_TYPE_READ_WITH_ADDRESS #define SPI_OPMENU_3 SPI_OPCODE_RDSR #define SPI_OPTYPE_3 SPI_OPCODE_TYPE_READ_NO_ADDRESS #define SPI_OPMENU_4 SPI_OPCODE_ERASE_SECT #define SPI_OPTYPE_4 SPI_OPCODE_TYPE_WRITE_WITH_ADDRESS #define SPI_OPMENU_5 SPI_OPCODE_READ_ID #define SPI_OPTYPE_5 SPI_OPCODE_TYPE_READ_NO_ADDRESS #define SPI_OPMENU_6 SPI_OPCODE_ERASE_BLOCK #define SPI_OPTYPE_6 SPI_OPCODE_TYPE_WRITE_WITH_ADDRESS #define SPI_OPMENU_7 SPI_OPCODE_FAST_READ #define SPI_OPTYPE_7 SPI_OPCODE_TYPE_READ_WITH_ADDRESS #define SPI_OPPREFIX ((SPI_OPCODE_WREN << 8) | SPI_OPCODE_WREN) #define SPI_OPTYPE ((SPI_OPTYPE_7 << 14) | (SPI_OPTYPE_6 << 12) | \ (SPI_OPTYPE_5 << 10) | (SPI_OPTYPE_4 << 8) | \ (SPI_OPTYPE_3 << 6) | (SPI_OPTYPE_2 << 4) | \ (SPI_OPTYPE_1 << 2) | (SPI_OPTYPE_0 << 0)) #define SPI_OPMENU_UPPER ((SPI_OPMENU_7 << 24) | (SPI_OPMENU_6 << 16) | \ (SPI_OPMENU_5 << 8) | (SPI_OPMENU_4 << 0)) #define SPI_OPMENU_LOWER ((SPI_OPMENU_3 << 24) | (SPI_OPMENU_2 << 16) | \ (SPI_OPMENU_1 << 8) | (SPI_OPMENU_0 << 0)) enum ich_version { ICHV_7, ICHV_9, }; struct ich_spi_platdata { enum ich_version ich_version; /* Controller version, 7 or 9 */ bool lockdown; /* lock down controller settings? */ }; struct ich_spi_priv { int opmenu; int menubytes; void *base; /* Base of register set */ int preop; int optype; int addr; int data; unsigned databytes; int status; int control; int bbar; int bcr; uint32_t *pr; /* only for ich9 */ int speed; /* pointer to speed control */ ulong max_speed; /* Maximum bus speed in MHz */ ulong cur_speed; /* Current bus speed */ struct spi_trans trans; /* current transaction in progress */ }; #endif /* _ICH_H_ */ |