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|
/* Copyright 2015 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
/* JEDEC Serial Flash Discoverable Parameters (SFDP) for Serial NOR Flash,
* covering v1.0 (JESD216) & v1.5 (JESD216A). */
#ifndef __CROS_EC_SFDP_H
#define __CROS_EC_SFDP_H
/**
* Helper macros to declare and access SFDP defined bitfields at a JEDEC SFDP
* defined double word (32b) granularity.
*/
#define SFDP_DEFINE_BITMASK_32(name, hi, lo) \
static const uint32_t name = (((1ULL << ((hi) - (lo) + 1)) - 1UL) \
<< (lo));
#define SFDP_DEFINE_SHIFT_32(name, hi, lo) \
static const size_t name = (lo);
#define SFDP_DEFINE_BITFIELD(name, hi, lo) \
SFDP_DEFINE_BITMASK_32(name ## _MASK, hi, lo) \
SFDP_DEFINE_SHIFT_32(name ## _SHIFT, hi, lo)
#define SFDP_GET_BITFIELD(name, dw) \
(((dw) & name ## _MASK) >> name ## _SHIFT)
/**
* Helper macros to construct SFDP defined double words (32b). Note reserved or
* unused fields must always be set to all 1's.
*/
#define SFDP_BITFIELD(name, value) (((value) << name ## _SHIFT) & name ## _MASK)
#define SFDP_UNUSED(hi, lo) (((1ULL << ((hi) - (lo) + 1)) - 1UL) << (lo))
/******************************************************************************/
/* SFDP Header, always located at SFDP offset 0x0. Note that the SFDP space is
* always read in 3 Byte addressing mode with a single dummy cycle, where the
* expected SFDP address space layout looks like the following:
*
* ------------------0x00
* | SFDP Header | (specifying X number of Parameter Headers)
* ------------------0x08
* | Parameter Header 1 | (specifying Y Parameter Table Pointer & Length L)
* ------------------0x10
* - - -
* --------------X * 0x08
* | Parameter Header X | (specifying Z Parameter Table Pointer & Length K)
* --------(X + 1) * 0x08
* - - -
* ---------------------Y
* | Parameter Table 1 |
* -------------------Y+L
* - - -
* ---------------------Z Key: ------start_sfdp_offset
* | Parameter Table X | | Region Name |
* -------------------Z+K ------limit_sfdp_offset
*/
/*
* SFDP Header 1st DWORD
* ---------------------
* <31:24> : Fourth signature byte == 'P'
* <23:16> : Third signature byte == 'D'
* <15:8> : Second signature byte == 'F'
* <7:0> : First signature byte == 'S'
*/
SFDP_DEFINE_BITFIELD(SFDP_HEADER_DW1_P, 31, 24);
SFDP_DEFINE_BITFIELD(SFDP_HEADER_DW1_D, 23, 16);
SFDP_DEFINE_BITFIELD(SFDP_HEADER_DW1_F, 15, 8);
SFDP_DEFINE_BITFIELD(SFDP_HEADER_DW1_S, 7, 0);
#define SFDP_HEADER_DWORD_1(s, f, d, p) \
(SFDP_BITFIELD(SFDP_HEADER_DW1_P, p) | \
SFDP_BITFIELD(SFDP_HEADER_DW1_D, d) | \
SFDP_BITFIELD(SFDP_HEADER_DW1_F, f) | \
SFDP_BITFIELD(SFDP_HEADER_DW1_S, s))
#define SFDP_HEADER_DW1_SFDP_SIGNATURE_VALID(x) (x == 0x50444653)
/*
* SFDP Header 2nd DWORD
* ---------------------
* <31:24> : Unused
* <23:16> : Number of Parameter Headers (0-based, 0 indicates 1)
* <15:8> : SFDP Major Revision Number
* <7:0> : SFDP Minor Revision Number
*/
SFDP_DEFINE_BITFIELD(SFDP_HEADER_DW2_NPH, 23, 16);
SFDP_DEFINE_BITFIELD(SFDP_HEADER_DW2_SFDP_MAJOR, 15, 8);
SFDP_DEFINE_BITFIELD(SFDP_HEADER_DW2_SFDP_MINOR, 7, 0);
#define SFDP_HEADER_DWORD_2(nph, major, minor) \
(SFDP_UNUSED(31, 24) | \
SFDP_BITFIELD(SFDP_HEADER_DW2_NPH, nph) | \
SFDP_BITFIELD(SFDP_HEADER_DW2_SFDP_MAJOR, major) | \
SFDP_BITFIELD(SFDP_HEADER_DW2_SFDP_MINOR, minor))
/******************************************************************************/
/* SFDP v1.0 Parameter Headers, starts at SFDP offset 0x8 and there are as many
* as specified in the v1.0 SFDP header. */
/* In SFDP v1.0, the only reserved ID was the Basic Flash Parameter Table ID of
* 0x00. Otherwise this field must be set to the vendor's manufacturer ID. Note,
* the spec does not call out how to report the manufacturer bank number. */
#define BASIC_FLASH_PARAMETER_TABLE_1_0_ID 0x00
/*
* SFDP v1.0: Parameter Header 1st DWORD
* --------------------------
* <31:24> : Parameter Table Length (1-based, 1 indicates 1)
* <23:16> : Parameter Table Major Revision Number
* <15:8> : Parameter Table Minor Revision Number
* <7:0> : ID number
*/
SFDP_DEFINE_BITFIELD(SFDP_1_0_PARAMETER_HEADER_DW1_PTL, 31, 24);
SFDP_DEFINE_BITFIELD(SFDP_1_0_PARAMETER_HEADER_DW1_TABLE_MAJOR, 23, 16);
SFDP_DEFINE_BITFIELD(SFDP_1_0_PARAMETER_HEADER_DW1_TABLE_MINOR, 15, 8);
SFDP_DEFINE_BITFIELD(SFDP_1_0_PARAMETER_HEADER_DW1_ID, 7, 0);
#define SFDP_1_0_PARAMETER_HEADER_DWORD_1(ptl, major, minor, id) \
(SFDP_BITFIELD(SFDP_1_0_PARAMETER_HEADER_DW1_PTL, ptl) | \
SFDP_BITFIELD(SFDP_1_0_PARAMETER_HEADER_DW1_TABLE_MAJOR, major) | \
SFDP_BITFIELD(SFDP_1_0_PARAMETER_HEADER_DW1_TABLE_MINOR, minor) | \
SFDP_BITFIELD(SFDP_1_0_PARAMETER_HEADER_DW1_ID, id))
/*
* SFDP v1.0: Parameter Header 2nd DWORD
* --------------------------
* <31:24> : Unused (0xFF)
* <23:0> : Parameter Table Pointer (SFDP offset which must be word aligned)
*/
SFDP_DEFINE_BITFIELD(SFDP_1_0_PARAMETER_HEADER_DW2_PTP, 23, 0);
#define SFDP_1_0_PARAMETER_HEADER_DWORD_2(ptp) \
(SFDP_UNUSED(31, 24) | \
SFDP_BITFIELD(SFDP_1_0_PARAMETER_HEADER_DW2_PTP, ptp))
/******************************************************************************/
/* SFDP v1.5 Parameter Headers, starts at SFDP offset 0x8 and there are as many
* as specified in the v1.5 SFDP header. */
/* Parameter ID MSB | Parameter ID LSB | Type | Owner
* ==========================================================================
* 0x00 | All | Reserved | JEDEC JC42.4
* --------------------------------------------------------------------------
* 0x01 - 0x7F | odd parity | JEDEC JEP106 | Vendor
* | | Manufacturer ID |
* | | (mfn=LSB, bank=MSB) |
* --------------------------------------------------------------------------
* 0x01 - 0x7F | even parity | Function Specific | Vendor
* --------------------------------------------------------------------------
* 0x80 - 0xFE | even parity | Function Specific | JEDEC JC42.4
* --------------------------------------------------------------------------
* 0xFF | 0x00 | Basic Flash Parameter | JEDEC JC42.4
* | | Table |
* -------------------------------------------------------------------------- */
#define BASIC_FLASH_PARAMETER_TABLE_1_5_ID_MSB 0xFF
#define BASIC_FLASH_PARAMETER_TABLE_1_5_ID_LSB 0x00
/*
* SFDP v1.5: Parameter Header 1st DWORD
* --------------------------
* <31:24> : Parameter Table Length (1-based, 1 indicates 1)
* <23:16> : Parameter Table Major Revision Number
* <15:8> : Parameter Table Minor Revision Number
* <7:0> : Parameter ID LSB
*/
SFDP_DEFINE_BITFIELD(SFDP_1_5_PARAMETER_HEADER_DW1_PTL, 31, 24);
SFDP_DEFINE_BITFIELD(SFDP_1_5_PARAMETER_HEADER_DW1_TABLE_MAJOR, 23, 16);
SFDP_DEFINE_BITFIELD(SFDP_1_5_PARAMETER_HEADER_DW1_TABLE_MINOR, 15, 8);
SFDP_DEFINE_BITFIELD(SFDP_1_5_PARAMETER_HEADER_DW1_ID_LSB, 7, 0);
#define SFDP_1_5_PARAMETER_HEADER_DWORD_1(ptl, major, minor, idlsb) \
(SFDP_BITFIELD(SFDP_1_5_PARAMETER_HEADER_DW1_PTL, ptl) | \
SFDP_BITFIELD(SFDP_1_5_PARAMETER_HEADER_DW1_TABLE_MAJOR, major) | \
SFDP_BITFIELD(SFDP_1_5_PARAMETER_HEADER_DW1_TABLE_MINOR, minor) | \
SFDP_BITFIELD(SFDP_1_5_PARAMETER_HEADER_DW1_ID_LSB, idlsb))
/*
* SFDP v1.5: Parameter Header 2nd DWORD
* --------------------------
* <31:24> : Parameter ID MSB
* <23:0> : Parameter Table Pointer (SFDP offset which must be word aligned)
*/
SFDP_DEFINE_BITFIELD(SFDP_1_5_PARAMETER_HEADER_DW2_ID_MSB, 31, 24);
SFDP_DEFINE_BITFIELD(SFDP_1_5_PARAMETER_HEADER_DW2_PTP, 23, 0);
#define SFDP_1_5_PARAMETER_HEADER_DWORD_2(idmsb, ptp) \
(SFDP_BITFIELD(SFDP_1_5_PARAMETER_HEADER_DW2_ID_MSB, idmsb) | \
SFDP_BITFIELD(SFDP_1_5_PARAMETER_HEADER_DW2_PTP, ptp))
/******************************************************************************/
/* JEDEC (SPI Protocol) Basic Flash Parameter Table v1.0. The reporting of at
* least one revision of this table is mandatory and must be specified by the
* first parameter header.*/
/* Basic Flash Parameter Table v1.0 1st DWORD
* ------------------------------------------
* <31:23> : Unused
* <22> : Supports 1-1-4 Fast Read (1 if supported)
* <21> : Supports 1-4-4 Fast Read (1 if supported)
* <20> : Supports 1-2-2 Fast Read (1 if supported)
* <19> : Supports Double Transfer Rate (DTR) Clocking (1 if supported)
* <18:17> : Address Bytes:
* - 0x0 if 3 Byte addressing only
* - 0x1 if defaults to 3B addressing, enters 4B on command
* - 0x2 if 4 Byte addressing only
* <16> : Supports 1-1-2 Fast Read (1 if supported)
* <15:8> : 4KiB Erase Opcode (0xFF if unsupported)
* <7:5> : Unused
* <4> : Write Enable Opcode Select for Writing to Volatile Status Register:
* - 0x0 if 0x50 is the opcode to enable a status register write
* - 0x1 if 0x06 is the opcode to enable a status register write
* <3> : Write Enable Instruction Required for writing to Volatile Status
* Register:
* - 0x0 if target flash only has nonvolatile status bits and does
* not require status register to be written every power on
* - 0x1 if target flash requires 0x00 to be written to the status
* register in order to allow writes and erases
* <2> : Write granularity (0 if the buffer is less than 64B, 1 if larger)
* <1:0> : Block/Sector Erase granularity available for the entirety of flash:
* - 0x1 if 4KiB is uniformly available
* - 0x3 if 4KiB is unavailable
*/
SFDP_DEFINE_BITFIELD(BFPT_1_0_DW1_1_1_4_SUPPORTED, 22, 22);
SFDP_DEFINE_BITFIELD(BFPT_1_0_DW1_1_4_4_SUPPORTED, 21, 21);
SFDP_DEFINE_BITFIELD(BFPT_1_0_DW1_1_2_2_SUPPORTED, 20, 20);
SFDP_DEFINE_BITFIELD(BFPT_1_0_DW1_DTR_SUPPORTED, 19, 19);
SFDP_DEFINE_BITFIELD(BFPT_1_0_DW1_ADDR_BYTES, 18, 17);
SFDP_DEFINE_BITFIELD(BFPT_1_0_DW1_1_1_2_SUPPORTED, 16, 16);
SFDP_DEFINE_BITFIELD(BFPT_1_0_DW1_4KIB_ERASE_OPCODE, 15, 8);
SFDP_DEFINE_BITFIELD(BFPT_1_0_DW1_WREN_OPCODE_SELECT, 4, 4);
SFDP_DEFINE_BITFIELD(BFPT_1_0_DW1_WREN_REQ, 3, 3);
SFDP_DEFINE_BITFIELD(BFPT_1_0_DW1_WRITE_GRANULARITY, 2, 2);
SFDP_DEFINE_BITFIELD(BFPT_1_0_DW1_4KIB_AVAILABILITY, 1, 0);
#define BFPT_1_0_DWORD_1(fr114, fr144, fr122, dtr, addr, fr112, \
rm4kb, wrenop, wrenrq, wrgr, ergr) \
(SFDP_UNUSED(31, 23) | \
SFDP_BITFIELD(BFPT_1_0_DW1_1_1_4_SUPPORTED, fr114) | \
SFDP_BITFIELD(BFPT_1_0_DW1_1_4_4_SUPPORTED, fr144) | \
SFDP_BITFIELD(BFPT_1_0_DW1_1_2_2_SUPPORTED, fr122) | \
SFDP_BITFIELD(BFPT_1_0_DW1_DTR_SUPPORTED, dtr) | \
SFDP_BITFIELD(BFPT_1_0_DW1_ADDR_BYTES, addr) | \
SFDP_BITFIELD(BFPT_1_0_DW1_1_1_2_SUPPORTED, fr112) | \
SFDP_BITFIELD(BFPT_1_0_DW1_4KIB_ERASE_OPCODE, rm4kb) | \
SFDP_UNUSED(7, 5) | \
SFDP_BITFIELD(BFPT_1_0_DW1_WREN_OPCODE_SELECT, wrenop) | \
SFDP_BITFIELD(BFPT_1_0_DW1_WREN_REQ, wrenrq) | \
SFDP_BITFIELD(BFPT_1_0_DW1_WRITE_GRANULARITY, wrgr) | \
SFDP_BITFIELD(BFPT_1_0_DW1_4KIB_AVAILABILITY, ergr))
/* Basic Flash Parameter Table v1.0 2nd DWORD
* ------------------------------------------
* <31> : Density greater than 2 gibibits
* <30:0> : N, where:
* - if =< 2 gibibits, flash memory density is N+1 bits
* - if > 2 gibibits, flash memory density is 2^N bits
*/
SFDP_DEFINE_BITFIELD(BFPT_1_0_DW2_GT_2_GIBIBITS, 31, 31);
SFDP_DEFINE_BITFIELD(BFPT_1_0_DW2_N, 30, 0);
#define BFPT_1_0_DWORD_2(gt_2_gibibits, n) \
(SFDP_BITFIELD(BFPT_1_0_DW2_GT_2_GIBIBITS, gt_2_gibibits) | \
SFDP_BITFIELD(BFPT_1_0_DW2_N, n))
/* Basic Flash Parameter Table v1.0 3rd DWORD
* ------------------------------------------
* <31:24> : 1-1-4 Fast Read Opcode
* <23:21> : 1-1-4 Fast Read Number of Mode Bits (0 if unsupported)
* <20:16> : 1-1-4 Fast Read Number of Wait States (Dummy Clocks)
* <15:8> : 1-4-4 Fast Read Opcode
* <7:5> : 1-4-4 Fast Read Number of Mode Bits (0 if unsupported)
* <4:0> : 1-4-4 Fast Read Number of Wait States (Dummy CLocks)
*/
SFDP_DEFINE_BITFIELD(BFPT_1_0_DW3_1_1_4_OPCODE, 31, 24);
SFDP_DEFINE_BITFIELD(BFPT_1_0_DW3_1_1_4_MODE_BITS, 23, 21);
SFDP_DEFINE_BITFIELD(BFPT_1_0_DW3_1_1_4_DUMMY_CLOCKS, 20, 16);
SFDP_DEFINE_BITFIELD(BFPT_1_0_DW3_1_4_4_OPCODE, 15, 8);
SFDP_DEFINE_BITFIELD(BFPT_1_0_DW3_1_4_4_MODE_BITS, 7, 5);
SFDP_DEFINE_BITFIELD(BFPT_1_0_DW3_1_4_4_DUMMY_CLOCKS, 4, 0);
#define BFPT_1_0_DWORD_3(fr114op, fr114mb, fr114dc, \
fr144op, fr144mb, fr144dc) \
(SFDP_BITFIELD(BFPT_1_0_DW3_1_1_4_OPCODE, fr114op) | \
SFDP_BITFIELD(BFPT_1_0_DW3_1_1_4_MODE_BITS, fr114mb) | \
SFDP_BITFIELD(BFPT_1_0_DW3_1_1_4_DUMMY_CLOCKS, fr114dc) | \
SFDP_BITFIELD(BFPT_1_0_DW3_1_4_4_OPCODE, fr144op) | \
SFDP_BITFIELD(BFPT_1_0_DW3_1_4_4_MODE_BITS, fr144mb) | \
SFDP_BITFIELD(BFPT_1_0_DW3_1_4_4_DUMMY_CLOCKS, fr144dc))
/* Basic Flash Parameter Table v1.0 4th DWORD
* ------------------------------------------
* <31:24> : 1-2-2 Fast Read Opcode
* <23:21> : 1-2-2 Fast Read Number of Mode Bits (0 if unsupported)
* <20:16> : 1-2-2 Fast Read Number of Wait States (Dummy Clocks)
* <15:8> : 1-1-2 Fast Read Opcode
* <7:5> : 1-1-2 Fast Read Number of Mode Bits (0 if unsupported)
* <4:0> : 1-1-2 Fast Read Number of Wait States (Dummy CLocks)
*/
SFDP_DEFINE_BITFIELD(BFPT_1_0_DW4_1_2_2_OPCODE, 31, 24);
SFDP_DEFINE_BITFIELD(BFPT_1_0_DW4_1_2_2_MODE_BITS, 23, 21);
SFDP_DEFINE_BITFIELD(BFPT_1_0_DW4_1_2_2_DUMMY_CLOCKS, 20, 16);
SFDP_DEFINE_BITFIELD(BFPT_1_0_DW4_1_1_2_OPCODE, 15, 8);
SFDP_DEFINE_BITFIELD(BFPT_1_0_DW4_1_1_2_MODE_BITS, 7, 5);
SFDP_DEFINE_BITFIELD(BFPT_1_0_DW4_1_1_2_DUMMY_CLOCKS, 4, 0);
#define BFPT_1_0_DWORD_4(fr122op, fr122mb, fr122dc, \
fr112op, fr112mb, fr112dc) \
(SFDP_BITFIELD(BFPT_1_0_DW4_1_2_2_OPCODE, fr122op) | \
SFDP_BITFIELD(BFPT_1_0_DW4_1_2_2_MODE_BITS, fr122mb) | \
SFDP_BITFIELD(BFPT_1_0_DW4_1_2_2_DUMMY_CLOCKS, fr122dc) | \
SFDP_BITFIELD(BFPT_1_0_DW4_1_1_2_OPCODE, fr112op) | \
SFDP_BITFIELD(BFPT_1_0_DW4_1_1_2_MODE_BITS, fr112mb) | \
SFDP_BITFIELD(BFPT_1_0_DW4_1_1_2_DUMMY_CLOCKS, fr112dc))
/* Basic Flash Parameter Table v1.0 5th DWORD
* ------------------------------------------
* <31:5> : Reserved (0x7FFFFFF)
* <4> : Supports 4-4-4 Fast Read (1 if supported)
* <3:1> : Reserved (0x7)
* <0> : Supports 2-2-2 Fast Read (1 if supported)
*/
SFDP_DEFINE_BITFIELD(BFPT_1_0_DW5_4_4_4_SUPPORTED, 4, 4);
SFDP_DEFINE_BITFIELD(BFPT_1_0_DW5_2_2_2_SUPPORTED, 0, 0);
#define BFPT_1_0_DWORD_5(fr444, fr222) \
(SFDP_UNUSED(31, 5) | \
SFDP_BITFIELD(BFPT_1_0_DW5_4_4_4_SUPPORTED, fr444) | \
SFDP_UNUSED(3, 1) | \
SFDP_BITFIELD(BFPT_1_0_DW5_2_2_2_SUPPORTED, fr222))
/* Basic Flash Parameter Table v1.0 6th DWORD
* ------------------------------------------
* <31:24> : 2-2-2 Fast Read Opcode
* <23:21> : 2-2-2 Fast Read Number of Mode Bits (0 if unsupported)
* <20:16> : 2-2-2 Fast Read Number of Wait States (Dummy Clocks)
* <15:0> : Reserved (0xFFFF)
*/
SFDP_DEFINE_BITFIELD(BFPT_1_0_DW6_2_2_2_OPCODE, 31, 24);
SFDP_DEFINE_BITFIELD(BFPT_1_0_DW6_2_2_2_MODE_BITS, 23, 21);
SFDP_DEFINE_BITFIELD(BFPT_1_0_DW6_2_2_2_DUMMY_CLOCKS, 20, 16);
#define BFPT_1_0_DWORD_6(fr222op, fr222mb, fr222dc) \
(SFDP_BITFIELD(BFPT_1_0_DW6_2_2_2_OPCODE, fr222op) | \
SFDP_BITFIELD(BFPT_1_0_DW6_2_2_2_MODE_BITS, fr222mb) | \
SFDP_BITFIELD(BFPT_1_0_DW6_2_2_2_DUMMY_CLOCKS, fr222dc) | \
SFDP_UNUSED(15, 0))
/* Basic Flash Parameter Table v1.0 7th DWORD
* ------------------------------------------
* <31:24> : 4-4-4 Fast Read Opcode
* <23:21> : 4-4-4 Fast Read Number of Mode Bits (0 if unsupported)
* <20:16> : 4-4-4 Fast Read Number of Wait States (Dummy Clocks)
* <15:0> : Reserved (0xFFFF)
*/
SFDP_DEFINE_BITFIELD(BFPT_1_0_DW7_4_4_4_OPCODE, 31, 24);
SFDP_DEFINE_BITFIELD(BFPT_1_0_DW7_4_4_4_MODE_BITS, 23, 21);
SFDP_DEFINE_BITFIELD(BFPT_1_0_DW7_4_4_4_DUMMY_CLOCKS, 20, 16);
#define BFPT_1_0_DWORD_7(fr444op, fr444mb, fr444dc) \
(SFDP_BITFIELD(BFPT_1_0_DW7_4_4_4_OPCODE, fr444op) | \
SFDP_BITFIELD(BFPT_1_0_DW7_4_4_4_MODE_BITS, fr444mb) | \
SFDP_BITFIELD(BFPT_1_0_DW7_4_4_4_DUMMY_CLOCKS, fr444dc) | \
SFDP_UNUSED(15, 0))
/* Basic Flash Parameter Table v1.0 8th DWORD
* ------------------------------------------
* <31:24> : Sector Type 2 Erase Opcode
* <23:16> : Sector Type 2 Erase Size (2^N Bytes, 0 if unavailable)
* <15:8> : Sector Type 1 Erase Opcode
* <7:0> : Sector Type 1 Erase Size (2^N Bytes, 0 if unavailable)
*/
SFDP_DEFINE_BITFIELD(BFPT_1_0_DW8_ERASE_TYPE_2_OPCODE, 31, 24);
SFDP_DEFINE_BITFIELD(BFPT_1_0_DW8_ERASE_TYPE_2_SIZE, 23, 16);
SFDP_DEFINE_BITFIELD(BFPT_1_0_DW8_ERASE_TYPE_1_OPCODE, 15, 8);
SFDP_DEFINE_BITFIELD(BFPT_1_0_DW8_ERASE_TYPE_1_SIZE, 7, 0);
#define BFPT_1_0_DWORD_8(rm2op, rm2sz, rm1op, rm1sz) \
(SFDP_BITFIELD(BFPT_1_0_DW8_ERASE_TYPE_2_OPCODE, rm2op) | \
SFDP_BITFIELD(BFPT_1_0_DW8_ERASE_TYPE_2_SIZE, rm2sz) | \
SFDP_BITFIELD(BFPT_1_0_DW8_ERASE_TYPE_1_OPCODE, rm1op) | \
SFDP_BITFIELD(BFPT_1_0_DW8_ERASE_TYPE_1_SIZE, rm1sz))
/* Basic Flash Parameter Table v1.0 9th DWORD
* ------------------------------------------
* <31:24> : Sector Type 4 Erase Opcode
* <23:16> : Sector Type 4 Erase Size (2^N Bytes, 0 if unavailable)
* <15:8> : Sector Type 3 Erase Opcode
* <7:0> : Sector Type 3 Erase Size (2^N Bytes, 0 if unavailable)
*/
SFDP_DEFINE_BITFIELD(BFPT_1_0_DW9_ERASE_TYPE_4_OPCODE, 31, 24);
SFDP_DEFINE_BITFIELD(BFPT_1_0_DW9_ERASE_TYPE_4_SIZE, 23, 16);
SFDP_DEFINE_BITFIELD(BFPT_1_0_DW9_ERASE_TYPE_3_OPCODE, 15, 8);
SFDP_DEFINE_BITFIELD(BFPT_1_0_DW9_ERASE_TYPE_3_SIZE, 7, 0);
#define BFPT_1_0_DWORD_9(rm4op, rm4sz, rm3op, rm3sz) \
(SFDP_BITFIELD(BFPT_1_0_DW9_ERASE_TYPE_4_OPCODE, rm4op) | \
SFDP_BITFIELD(BFPT_1_0_DW9_ERASE_TYPE_4_SIZE, rm4sz) | \
SFDP_BITFIELD(BFPT_1_0_DW9_ERASE_TYPE_3_OPCODE, rm3op) | \
SFDP_BITFIELD(BFPT_1_0_DW9_ERASE_TYPE_3_SIZE, rm3sz))
/******************************************************************************/
/* JEDEC (SPI Protocol) Basic Flash Parameter Table v1.5. The reporting of at
* least one revision of this table is mandatory and must be specified by the
* first parameter header. Note that DWORDs 1-9 are identical to v1.0. */
/* Basic Flash Parameter Table v1.5 10th DWORD
* ------------------------------------------
* <31:30> : Sector Type 4 Erase, Typical time units, where
* 0x0: 1ms, 0x1: 16ms, 0x2: 128ms, 0x3: 1s
* <29:25> : Sector Type 4 Erase, Typical time count, where
* time = (count + 1) * units
* <24:23> : Sector Type 3 Erase, Typical time units, where
* 0x0: 1ms, 0x1: 16ms, 0x2: 128ms, 0x3: 1s
* <22:18> : Sector Type 3 Erase, Typical time count, where
* time = (count + 1) * units
* <17:16> : Sector Type 2 Erase, Typical time units, where
* 0x0: 1ms, 0x1: 16ms, 0x2: 128ms, 0x3: 1s
* <15:11> : Sector Type 2 Erase, Typical time count, where
* time = (count + 1) * units
* <10:9> : Sector Type 1 Erase, Typical time units, where
* 0x0: 1ms, 0x1: 16ms, 0x2: 128ms, 0x3: 1s
* <8:4> : Sector Type 1 Erase, Typical time count, where
* time = (count + 1) * units
* <3:0> : Multiplier from typical to maximum erase time, where
* maximum_time = 2 * (multiplier + 1) * typical_time
*/
SFDP_DEFINE_BITFIELD(BFPT_1_5_DW10_ERASE_4_TIME_UNIT, 31, 30);
SFDP_DEFINE_BITFIELD(BFPT_1_5_DW10_ERASE_4_TIME_CNT, 29, 25);
SFDP_DEFINE_BITFIELD(BFPT_1_5_DW10_ERASE_3_TIME_UNIT, 24, 23);
SFDP_DEFINE_BITFIELD(BFPT_1_5_DW10_ERASE_3_TIME_CNT, 22, 18);
SFDP_DEFINE_BITFIELD(BFPT_1_5_DW10_ERASE_2_TIME_UNIT, 17, 16);
SFDP_DEFINE_BITFIELD(BFPT_1_5_DW10_ERASE_2_TIME_CNT, 15, 11);
SFDP_DEFINE_BITFIELD(BFPT_1_5_DW10_ERASE_1_TIME_UNIT, 10, 9);
SFDP_DEFINE_BITFIELD(BFPT_1_5_DW10_ERASE_1_TIME_CNT, 8, 4);
SFDP_DEFINE_BITFIELD(BFPT_1_5_DW10_ERASE_TIME_MAX_MULT, 3, 0);
#define BFPT_1_5_DWORD_10(rm4unit, rm4count, rm3unit, \
rm3count, rm2unit, rm2count, \
rm1unit, rm1count, maxmult) \
(SFDP_BITFIELD(BFPT_1_5_DW10_ERASE_4_TIME_UNIT, rm4unit) | \
SFDP_BITFIELD(BFPT_1_5_DW10_ERASE_4_TIME_CNT, rm4count) | \
SFDP_BITFIELD(BFPT_1_5_DW10_ERASE_3_TIME_UNIT, rm3unit) | \
SFDP_BITFIELD(BFPT_1_5_DW10_ERASE_3_TIME_CNT, rm3count) | \
SFDP_BITFIELD(BFPT_1_5_DW10_ERASE_2_TIME_UNIT, rm2unit) | \
SFDP_BITFIELD(BFPT_1_5_DW10_ERASE_2_TIME_CNT, rm2count) | \
SFDP_BITFIELD(BFPT_1_5_DW10_ERASE_1_TIME_UNIT, rm1unit) | \
SFDP_BITFIELD(BFPT_1_5_DW10_ERASE_1_TIME_CNT, rm1count) | \
SFDP_BITFIELD(BFPT_1_5_DW10_ERASE_TIME_MAX_MULT, maxmult))
/* Basic Flash Parameter Table v1.5 11th DWORD
* ------------------------------------------
* <31> : Reserved (0x1)
* <30:29> : Chip Erase, Typical time units, where
* 0x0: 16ms, 0x1: 256ms, 0x2: 4s, 0x3: 64s
* <28:24> : Chip Erase, Typical time count, where time = (count + 1) * units
* <23> : Additional Byte Program, Typical time units (0: 1us, 1: 8us)
* <22:19> : Additional Byte Program, Typical time count, where each byte takes
* time = (count + 1) * units * bytes. This should not be
* used if the additional bytes count exceeds 1/2 a page size.
* <18> : First Byte Program, Typical time units (0: 1us, 1: 8us)
* <17:14> : First Byte Program, Typical time count, where each byte takes
* time = (count + 1) * units * bytes
* <13> : Page Program, Typical time units (0: 8us, 1: 64us)
* <12:8> : Page Program, Typical time count, where time = (count + 1) * units
* <7:4> : Page Size (2^N Bytes)
* <3:0> : Multiplier from typical time to max time for programming, where
* maximum_time = 2 * (multiplier + 1) * typical_time
*/
SFDP_DEFINE_BITFIELD(BFPT_1_5_DW11_CHIP_ERASE_TIME_UNIT, 30, 29);
SFDP_DEFINE_BITFIELD(BFPT_1_5_DW11_CHIP_ERASE_TIME_CNT, 28, 24);
SFDP_DEFINE_BITFIELD(BFPT_1_5_DW11_MORE_BYTE_WR_TIME_UNIT, 23, 23);
SFDP_DEFINE_BITFIELD(BFPT_1_5_DW11_MORE_BYTE_WR_TIME_CNT, 22, 19);
SFDP_DEFINE_BITFIELD(BFPT_1_5_DW11_INIT_BYTE_WR_TIME_UNIT, 18, 18);
SFDP_DEFINE_BITFIELD(BFPT_1_5_DW11_INIT_BYTE_WR_TIME_CNT, 17, 14);
SFDP_DEFINE_BITFIELD(BFPT_1_5_DW11_PAGE_WR_TIME_UNIT, 13, 13);
SFDP_DEFINE_BITFIELD(BFPT_1_5_DW11_PAGE_WR_TIME_CNT, 12, 8);
SFDP_DEFINE_BITFIELD(BFPT_1_5_DW11_PAGE_SIZE, 7, 4);
SFDP_DEFINE_BITFIELD(BFPT_1_5_DW11_WR_TIME_MAX_MULT, 3, 0);
#define BFPT_1_5_DWORD_11(crmunit, crmcount, mrbunit, mrbcount, initunit, \
initcount, pgwrunit, pgwrcount, pagesz, maxmult) \
(SFDP_UNUSED(31, 31) | \
SFDP_BITFIELD(BFPT_1_5_DW11_CHIP_ERASE_TIME_UNIT, \
crmunit) | \
SFDP_BITFIELD(BFPT_1_5_DW11_CHIP_ERASE_TIME_CNT, \
crmcount) | \
SFDP_BITFIELD(BFPT_1_5_DW11_MORE_BYTE_WR_TIME_UNIT, \
mrbunit) | \
SFDP_BITFIELD(BFPT_1_5_DW11_MORE_BYTE_WR_TIME_CNT, \
mrbcount) | \
SFDP_BITFIELD(BFPT_1_5_DW11_INIT_BYTE_WR_TIME_UNIT, \
initunit) | \
SFDP_BITFIELD(BFPT_1_5_DW11_INIT_BYTE_WR_TIME_CNT, \
initcount) | \
SFDP_BITFIELD(BFPT_1_5_DW11_PAGE_WR_TIME_UNIT, pgwrunit) | \
SFDP_BITFIELD(BFPT_1_5_DW11_PAGE_WR_TIME_CNT, pgwrcount) | \
SFDP_BITFIELD(BFPT_1_5_DW11_PAGE_SIZE, pagesz) | \
SFDP_BITFIELD(BFPT_1_5_DW11_WR_TIME_MAX_MULT, maxmult))
/* Basic Flash Parameter Table v1.5 12th DWORD
* ------------------------------------------
* <31> : Suspend / Resume unsupported (1 unsupported, 0 supported)
* <30:29> : Suspend in-progress erase max latency units, where
* 0x0: 128ns, 0x1: 1us, 0x2: 8us, 0x3: 64us
* <28:24> : Suspend in-progress erase max latency count, where
* max latency = (count + 1) * units
* <23:20> : Erase resume to suspend minimum interval, (count + 1) * 64us
* <19:18> : Suspend in-progress program max latency units, where
* 0x0: 128ns, 0x1: 1us, 0x2: 8us, 0x3: 64us
* <17:13> : Suspend in-progress program max latency count, where
* max latency = (count + 1) * units
* <12:9> : Program resume to suspend minimum internal, (count + 1) * 64us
* <8> : Reserved (0x1)
* <7:4> : Prohibited Operations During Erase Suspend flags, where
* xxx0b May not initiate a new erase anywhere
* (erase nesting not permitted)
* xxx1b May not initiate a new erase in the erase suspended sector
* size
* xx0xb May not initiate a page program anywhere
* xx1xb May not initiate a page program in the erase suspended
* sector size
* x0xxb Refer to vendor datasheet for read restrictions
* x1xxb May not initiate a read in the erase suspended sector size
* 0xxxb Additional erase or program restrictions apply
* 1xxxb The erase and program restrictions in bits 5:4 are
* sufficient
* <3:0> : Prohibited Operations During Program Suspend flags, where
* xxx0b May not initiate a new erase anywhere
* (erase nesting not permitted)
* xxx1b May not initiate a new erase in the program suspended page
* size
* xx0xb May not initiate a new page program anywhere
* (program nesting not permitted)
* xx1xb May not initiate a new page program in the program suspended
* page size
* x0xxb Refer to vendor datasheet for read restrictions
* x1xxb May not initiate a read in the program suspended page size
* 0xxxb Additional erase or program restrictions apply
* 1xxxb The erase and program restrictions in bits 1:0 are
* sufficient
*/
SFDP_DEFINE_BITFIELD(BFPT_1_5_DW12_SUSPEND_UNSUPPORTED, 31, 31);
SFDP_DEFINE_BITFIELD(BFPT_1_5_DW12_SUSP_RM_MAX_LAT_UNIT, 30, 29);
SFDP_DEFINE_BITFIELD(BFPT_1_5_DW12_SUSP_RM_MAX_LAT_CNT, 28, 24);
SFDP_DEFINE_BITFIELD(BFPT_1_5_DW12_RM_RES_TO_SUSP_LAT_CNT, 23, 20);
SFDP_DEFINE_BITFIELD(BFPT_1_5_DW12_SUSP_WR_MAX_LAT_UNIT, 19, 18)
SFDP_DEFINE_BITFIELD(BFPT_1_5_DW12_SUSP_WR_MAX_LAT_CNT, 17, 13);
SFDP_DEFINE_BITFIELD(BFPT_1_5_DW12_WR_RES_TO_SUSP_LAT_CNT, 12, 9);
SFDP_DEFINE_BITFIELD(BFPT_1_5_DW12_PROHIB_OPS_DURING_RM_SUSP, 7, 4);
SFDP_DEFINE_BITFIELD(BFPT_1_5_DW12_PROHIB_OPS_DURING_WR_SUSP, 3, 0);
#define BFPT_1_5_DWORD_12(unsup, susprmlatun, susprmlatcnt, rmressusplatcnt, \
suspwrmaxlatunit, suspwrmaxlatcnt, wrressuspcnt, \
prohibopsrmsusp, prohibopswrsusp) \
(SFDP_BITFIELD(BFPT_1_5_DW12_SUSPEND_UNSUPPORTED, unsup) | \
SFDP_BITFIELD(BFPT_1_5_DW12_SUSP_RM_MAX_LAT_UNIT, \
susprmlatun) | \
SFDP_BITFIELD(BFPT_1_5_DW12_SUSP_RM_MAX_LAT_CNT, \
susprmlatcnt) | \
SFDP_BITFIELD(BFPT_1_5_DW12_RM_RES_TO_SUSP_LAT_CNT, \
rmressusplatcnt) | \
SFDP_BITFIELD(BFPT_1_5_DW12_SUSP_WR_MAX_LAT_UNIT, \
suspwrmaxlatunit) | \
SFDP_BITFIELD(BFPT_1_5_DW12_SUSP_WR_MAX_LAT_CNT, \
suspwrmaxlatcnt) | \
SFDP_BITFIELD(BFPT_1_5_DW12_WR_RES_TO_SUSP_LAT_CNT, \
wrressuspcnt) | \
SFDP_UNUSED(8, 8) | \
SFDP_BITFIELD(BFPT_1_5_DW12_PROHIB_OPS_DURING_RM_SUSP, \
prohibopsrmsusp) | \
SFDP_BITFIELD(BFPT_1_5_DW12_PROHIB_OPS_DURING_WR_SUSP, \
prohibopswrsusp))
/* Basic Flash Parameter Table v1.5 13th DWORD
* ------------------------------------------
* <31:24> : Suspend Instruction used to suspend a write or erase type operation
* <23:16> : Resume Instruction used to resume a write or erase type operation
* <15:8> : Program Suspend Instruction used to suspend a program operation
* <7:0> : Program Resume Instruction used to resume a program operation
*/
SFDP_DEFINE_BITFIELD(BFPT_1_5_DW13_SUSPEND_OPCODE, 31, 24);
SFDP_DEFINE_BITFIELD(BFPT_1_5_DW13_RESUME_OPCODE, 23, 16);
SFDP_DEFINE_BITFIELD(BFPT_1_5_DW13_WR_SUSPEND_OPCODE, 15, 8);
SFDP_DEFINE_BITFIELD(BFPT_1_5_DW13_WR_RESUME_OPCODE, 7, 0);
#define BFPT_1_5_DWORD_13(suspop, resop, wrsspop, wrresop) \
(SFDP_BITFIELD(BFPT_1_5_DW13_SUSPEND_OPCODE, suspop) | \
SFDP_BITFIELD(BFPT_1_5_DW13_RESUME_OPCODE, resop) | \
SFDP_BITFIELD(BFPT_1_5_DW13_WR_SUSPEND_OPCODE, wrsspop) | \
SFDP_BITFIELD(BFPT_1_5_DW13_WR_RESUME_OPCODE, wrresop))
/* Basic Flash Parameter Table v1.5 14th DWORD
* ------------------------------------------
* <31> : Deep powerdown unsupported (1 unsupported, 0 supported)
* <30:23> : Enter deep powerdown instruction
* <22:15> : Exit deep powerdown instruction
* <14:13> : Exit deep powerdown to next operation delay units, where
* 0x0: 128ns, 0x1: 1us, 0x2: 8us, 0x3: 64us
* <12:8> : Exit deep powerdown to next operation delay count, where
* delay = = (count + 1) * units
* <7:2> : Status Register Polling Device Busy Flags, where
* xx_xx1xb Bit 7 of the Flag Status Register may be polled any time
* a Program, Erase, Suspend/Resume command is issued, or
* after a Reset command while the device is busy. The read
* instruction is 70h. Flag Status Register bit definitions:
* bit[7]: Program or erase controller status
* (0=busy; 1=ready)
* xx_xxx1b Use of legacy polling is supported by reading the Status
* Register with 05h instruction and checking WIP bit[0]
* (0=ready; 1=busy).
* <1:0> : Reserved (0x3)
*/
SFDP_DEFINE_BITFIELD(BFPT_1_5_DW14_POWER_DOWN_UNSUPPORTED, 31, 31);
SFDP_DEFINE_BITFIELD(BFPT_1_5_DW14_POWER_DOWN_OPCODE, 30, 23);
SFDP_DEFINE_BITFIELD(BFPT_1_5_DW14_POWER_UP_OPCODE, 22, 15);
SFDP_DEFINE_BITFIELD(BFPT_1_5_DW14_POWER_UP_TIME_UNIT, 14, 13);
SFDP_DEFINE_BITFIELD(BFPT_1_5_DW14_POWER_UP_TIME_CNT, 12, 8);
SFDP_DEFINE_BITFIELD(BFPT_1_5_DW14_BUSY_FLAGS, 7, 2);
#define BFPT_1_5_DWORD_14(pwrdwnunsup, pwrdwnop, pwrupop, pwrupunit, pwrupcnt, \
busypollflags) \
(SFDP_BITFIELD(BFPT_1_5_DW14_POWER_DOWN_UNSUPPORTED, \
pwrdwnunsup) | \
SFDP_BITFIELD(BFPT_1_5_DW14_POWER_DOWN_OPCODE, pwrdwnop) | \
SFDP_BITFIELD(BFPT_1_5_DW14_POWER_UP_OPCODE, pwrupop) | \
SFDP_BITFIELD(BFPT_1_5_DW14_POWER_UP_TIME_UNIT, \
pwrupunit) | \
SFDP_BITFIELD(BFPT_1_5_DW14_POWER_UP_TIME_CNT, pwrupcnt) | \
SFDP_BITFIELD(BFPT_1_5_DW14_BUSY_FLAGS, busypollflags) | \
SFDP_UNUSED(1, 0))
/* Basic Flash Parameter Table v1.5 15th DWORD
* ------------------------------------------
* <31:24> : Reserved (0xFF)
* <23> : HOLD and WIP disable supported by setting the non-volatile extended
* configuration register's bit 4 to 0.
* <22:20> : Quad Enable Requirements (1-1-4, 1-4-4, 4-4-4 Fast Reads), where
* 000b Device does not have a QE bit. Device detects 1-1-4 and 1-4-4
* reads based on instruction. DQ3/HOLD# functions as hold during
* instruction phase.
* 001b QE is bit 1 of status register 2. It is set via Write Status
* with two data bytes where bit 1 of the second byte is one. It
* is cleared via Write Status with two data bytes where bit
* 1 of the second byte is zero. Writing only one byte to the
* status register has the side-effect of clearing status
* register 2, including the QE bit. The 100b code is used if
* writing one byte to the status register does not modify status
* register 2.
* 010b QE is bit 6 of status register 1. It is set via Write Status
* with one data byte where bit 6 is one. It is cleared via Write
* Status with one data byte where bit 6 is zero.
* 011b QE is bit 7 of status register 2. It is set via Write status
* register 2 instruction 3Eh with one data byte where bit 7 is
* one. It is cleared via Write status register 2 instruction
* 3Eh with one data byte where bit 7 is zero. The status
* register 2 is read using instruction 3Fh.
* 100b QE is bit 1 of status register 2. It is set via Write Status
* with two data bytes where bit 1 of the second byte is one. It
* is cleared via Write Status with two data bytes where bit 1
* of the second byte is zero. In contrast to the 001b code,
* writing one byte to the status register does not modify status
* register 2.
* 101b QE is bit 1 of the status register 2. Status register 1 is
* read using Read Status instruction 05h. Status register 2 is
* read using instruction 35h. QE is set via Write Status
* instruction 01h with two data bytes where bit 1 of the second
* byte is one. It is cleared via Write Status with two data
* bytes where bit 1 of the second byte is zero.
* <19:16> : 0-4-4 Mode Entry Method, where
* xxx1b Mode Bits[7:0] = A5h Note: QE must be set prior to using this
* mode
* xx1xb Read the 8-bit volatile configuration register with
* instruction 85h, set XIP bit[3] in the data read, and write
* the modified data using the instruction 81h, then Mode Bits
* [7:0] = 01h
* <15:10> : 0-4-4 Mode Exit Method, where
* xx_xxx1b Mode Bits[7:0] = 00h will terminate this mode at the end
* of the current read operation
* xx_xx1xb If 3-Byte address active, input Fh on DQ0-DQ3 for 8
* clocks. If 4-Byte address active, input Fh on DQ0-DQ3 for
* 10 clocks. This will terminate the mode prior to the next
* read operation.
* xx_1xxxb Input Fh (mode bit reset) on DQ0-DQ3 for 8 clocks. This
* will terminate the mode prior to the next read operation.
* <9> : 0-4-4 mode supported (1 supported, 0 unsupported)
* <8:4> : 4-4-4 mode enable sequences, where
* x_xxx1b set QE per QER description above, then issue
* instruction 38h
* x_xx1xb issue instruction 38h
* x_x1xxb issue instruction 35h
* x_1xxxb device uses a read-modify-write sequence of operations:
* read configuration using instruction 65h followed by
* address 800003h, set bit 6,
* write configuration using instruction 71h followed by
* address 800003h. This configuration is volatile.
* <3:0> : 4-4-4 mode disable sequences, where
* xxx1b issue FFh instruction
* xx1xb issue F5h instruction
* x1xxb device uses a read-modify-write sequence of operations:
* read configuration using instruction 65h followed by address
* 800003h, clear bit 6,
* write configuration using instruction 71h followed by
* address 800003h. This configuration is volatile.
* 1xxxb issue the Soft Reset 66/99 sequence
*/
SFDP_DEFINE_BITFIELD(BFPT_1_5_DW15_HOLD_WP_DISABLE, 23, 23);
SFDP_DEFINE_BITFIELD(BFPT_1_5_DW15_QE_REQ, 22, 20);
SFDP_DEFINE_BITFIELD(BFPT_1_5_DW15_0_4_4_ENTRY, 19, 16);
SFDP_DEFINE_BITFIELD(BFPT_1_5_DW15_0_4_4_EXIT, 15, 10);
SFDP_DEFINE_BITFIELD(BFPT_1_5_DW15_0_4_4_SUPPORTED, 9, 9);
SFDP_DEFINE_BITFIELD(BFPT_1_5_DW15_4_4_4_ENTRY, 8, 4);
SFDP_DEFINE_BITFIELD(BFPT_1_5_DW15_4_4_4_EXIT, 3, 0);
#define BFPT_1_5_DWORD_15(holdwpdis, qereq, fr044entry, fr044exit, fr044sup, \
fr444entry, fr444exit) \
(SFDP_UNUSED(31, 24) | \
SFDP_BITFIELD(BFPT_1_5_DW15_HOLD_WP_DISABLE, holdwpdis) | \
SFDP_BITFIELD(BFPT_1_5_DW15_QE_REQ, qereq) | \
SFDP_BITFIELD(BFPT_1_5_DW15_0_4_4_ENTRY, fr044entry) | \
SFDP_BITFIELD(BFPT_1_5_DW15_0_4_4_EXIT, fr044exit) | \
SFDP_BITFIELD(BFPT_1_5_DW15_0_4_4_SUPPORTED, fr044sup) | \
SFDP_BITFIELD(BFPT_1_5_DW15_4_4_4_ENTRY, fr444entry) | \
SFDP_BITFIELD(BFPT_1_5_DW15_4_4_4_EXIT, fr444exit))
/* Basic Flash Parameter Table v1.5 16th DWORD
* -------------------------------------------
* <31:24> : Enter 4-Byte Addressing, where
* xxxx_xxx1b issue instruction B7h
* (preceding write enable not required)
* xxxx_xx1xb issue write enable instruction 06h, then issue
* instruction B7h
* xxxx_x1xxb 8-bit volatile extended address register used to define
* A[31:24] bits. Read with instruction C8h. Write
* instruction is C5h with 1 byte of data. Select the
* active 128 Mbit memory segment by setting the
* appropriate A[31:24] bits and use 3-Byte addressing.
* xxxx_1xxxb 8-bit volatile bank register used to define A[30:A24]
* bits. MSB (bit[7]) is used to enable/disable 4-byte
* address mode. When MSB is set to ‘1’, 4-byte address
* mode is active and A[30:24] bits are don’t care. Read
* with instruction 16h. Write instruction is 17h with 1
* byte of data. When MSB is cleared to ‘0’, select the
* active 128 Mbit segment by setting the appropriate
* A[30:24] bits and use 3-Byte addressing.
* xxx1_xxxxb A 16-bit nonvolatile configuration register controls
* 3-Byte/4-Byte address mode. Read instruction is B5h.
* Bit[0] controls address mode [0=3-Byte; 1=4-Byte]. Write
* configuration register instruction is B1h, data length
* is 2 bytes.
* xx1x_xxxxb Supports dedicated 4-Byte address instruction set.
* Consult vendor data sheet for the instruction set
* definition.
* x1xx_xxxxb Always operates in 4-Byte address mode
* <23:14> : Exit 4-Byte Addressing, where
* xx_xxxx_xxx1b issue instruction E9h to exit 4-Byte address mode
* (write enable instruction 06h is not required)
* xx_xxxx_xx1xb issue write enable instruction 06h, then issue
* instruction E9h to exit 4-Byte address mode
* xx_xxxx_x1xxb 8-bit volatile extended address register used to
* define A[31:A24] bits. Read with instruction C8h.
* Write instruction is C5h, data length is 1 byte.
* Return to lowest memory segment by setting A[31:24]
* to 00h and use 3-Byte addressing.
* xx_xxxx_1xxxb 8-bit volatile bank register used to define A[30:A24]
* bits. MSB (bit[7]) is used to enable/disable 4-byte
* address mode. When MSB is cleared to ‘0’, 3-byte
* address mode is active and A30:A24 are used to select
* the active 128 Mbit memory segment. Read with
* instruction 16h. Write instruction is 17h, data
* length is 1 byte.
* xx_xxx1_xxxxb A 16-bit nonvolatile configuration register controls
* 3-Byte/4-Byte address mode. Read instruction is B5h.
* Bit[0] controls address mode [0=3-Byte; 1=4-Byte].
* Write configuration register instruction is B1h, data
* length is 2 bytes.
* xx_xx1x_xxxxb Hardware reset
* xx_x1xx_xxxxb Software reset (see bits 13:8 in this DWORD)
* xx_1xxx_xxxxb Power cycle
* <13:8> : Soft Reset and Rescue Sequence Support, where
* 00_0000b no software reset instruction is supported
* xx_xxx1b drive Fh on all 4 data wires for 8 clocks
* xx_xx1xb drive Fh on all 4 data wires for 10 clocks if device is
* operating in 4-byte address mode
* xx_x1xxb drive Fh on all 4 data wires for 16 clocks
* xx_1xxxb issue instruction F0h
* x1_xxxxb issue reset enable instruction 66h, then issue reset
* instruction 99h. The reset enable, reset sequence may be
* issued on 1, 2, or 4 wires depending on the device
* operating mode.
* 1x_xxxxb exit 0-4-4 mode is required prior to other reset sequences
* above if the device may be operating in this mode.
* <7> : Reserved (0x1)
* <6:0> : Volatile or Non-Volatile Register and Write Enable Instruction for
* Status Register 1, where
* xx0_0000b status register is read only
* xxx_xxx1b Non-Volatile Status Register 1, powers-up to last written
* value, use instruction 06h to enable write
* xxx_xx1xb Volatile Status Register 1, status register powers-up
* with bits set to "1"s, use instruction 06h to enable
* write
* xxx_x1xxb Volatile Status Register 1, status register powers-up
* with bits set to "1"s, use instruction 50h to enable
* write
* xxx_1xxxb Non-Volatile/Volatile status register 1 powers-up to last
* written value in the non-volatile status register, use
* instruction 06h to enable write to non-volatile status
* register. Volatile status register may be activated after
* power-up to override the non-volatile status register,
* use instruction 50h to enable write and activate the
* volatile status register.
* xx1_xxxxb Status Register 1 contains a mix of volatile and
* non-volatile bits. The 06h instruction is used to enable
* writing of the register.
*/
SFDP_DEFINE_BITFIELD(BFPT_1_5_DW16_4_BYTE_ENTRY, 31, 24);
SFDP_DEFINE_BITFIELD(BFPT_1_5_DW16_4_BYTE_EXIT, 23, 14);
SFDP_DEFINE_BITFIELD(BFPT_1_5_DW16_SOFT_RESET, 13, 8);
SFDP_DEFINE_BITFIELD(BFPT_1_5_DW16_STATUS_REG_1, 6, 0);
#define BFPT_1_5_DWORD_16(entry, exit, softreset, statusreg1) \
(SFDP_BITFIELD(BFPT_1_5_DW16_4_BYTE_ENTRY, entry) | \
SFDP_BITFIELD(BFPT_1_5_DW16_4_BYTE_EXIT, exit) | \
SFDP_BITFIELD(BFPT_1_5_DW16_SOFT_RESET, softreset) | \
SFDP_UNUSED(7, 7) | \
SFDP_BITFIELD(BFPT_1_5_DW16_STATUS_REG_1, statusreg1))
#endif /* __CROS_EC_SFDP_H */
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