1f7fd720c8
The descriptor format has changed with Skylake and some fields have moved or been expanded. This includes new SPI frequencies and chip densities, though unfortunately 30MHz in the new format conflicts with 50MHz in the old format... There are also new regions with a few reserved regions inserted before a new embedded controller region. Unfortunately there does not seem to be a documented version field so there does not seem to be an official way to determine if a specific descriptor is new or old. To work around this ifdtool checks the hardcoded "SPI Read Frequency" to see if it set for 20MHz (old descriptor) or 17MHz (new descriptor). BUG=chrome-os-partner:40635 BUG=chrome-os-partner:43461 BRANCH=none TEST=run ifdtool on skylake and broadwell images Original-Change-Id: I0561b3c65fcb3e77c0a24be58b01db9b3a36e5a9 Original-Signed-off-by: Duncan Laurie <dlaurie@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/281001 Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Original-Commit-Queue: Aaron Durbin <adurbin@chromium.org> Change-Id: I9a08c26432e13c4000afc50de9d8473e6f911805 Signed-off-by: Duncan Laurie <dlaurie@chromium.org> Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/293240 Reviewed-on: http://review.coreboot.org/11228 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
136 lines
2.8 KiB
C
136 lines
2.8 KiB
C
/*
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* ifdtool - dump Intel Firmware Descriptor information
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*
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* Copyright (C) 2011 The ChromiumOS Authors. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc.
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*/
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#include <stdint.h>
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#define IFDTOOL_VERSION "1.2"
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enum ifd_version {
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IFD_VERSION_1,
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IFD_VERSION_2,
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};
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#define LAYOUT_LINELEN 80
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enum spi_frequency {
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SPI_FREQUENCY_20MHZ = 0,
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SPI_FREQUENCY_33MHZ = 1,
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SPI_FREQUENCY_48MHZ = 2,
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SPI_FREQUENCY_50MHZ_30MHZ = 4,
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SPI_FREQUENCY_17MHZ = 6,
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};
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enum component_density {
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COMPONENT_DENSITY_512KB = 0,
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COMPONENT_DENSITY_1MB = 1,
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COMPONENT_DENSITY_2MB = 2,
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COMPONENT_DENSITY_4MB = 3,
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COMPONENT_DENSITY_8MB = 4,
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COMPONENT_DENSITY_16MB = 5,
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COMPONENT_DENSITY_32MB = 6,
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COMPONENT_DENSITY_64MB = 7,
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COMPONENT_DENSITY_UNUSED = 0xf
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};
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// flash descriptor
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typedef struct {
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uint32_t flvalsig;
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uint32_t flmap0;
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uint32_t flmap1;
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uint32_t flmap2;
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uint8_t reserved[0xefc - 0x20];
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uint32_t flumap1;
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} __attribute__((packed)) fdbar_t;
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// regions
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#define MAX_REGIONS 9
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#define MAX_REGIONS_OLD 5
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typedef struct {
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uint32_t flreg0;
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uint32_t flreg1;
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uint32_t flreg2;
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uint32_t flreg3;
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uint32_t flreg4;
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uint32_t flreg5;
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uint32_t flreg6;
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uint32_t flreg7;
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uint32_t flreg8;
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} __attribute__((packed)) frba_t;
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// component section
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typedef struct {
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uint32_t flcomp;
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uint32_t flill;
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uint32_t flpb;
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} __attribute__((packed)) fcba_t;
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// pch strap
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typedef struct {
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uint32_t pchstrp0;
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uint32_t pchstrp1;
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uint32_t pchstrp2;
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uint32_t pchstrp3;
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uint32_t pchstrp4;
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uint32_t pchstrp5;
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uint32_t pchstrp6;
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uint32_t pchstrp7;
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uint32_t pchstrp8;
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uint32_t pchstrp9;
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uint32_t pchstrp10;
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uint32_t pchstrp11;
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uint32_t pchstrp12;
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uint32_t pchstrp13;
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uint32_t pchstrp14;
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uint32_t pchstrp15;
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uint32_t pchstrp16;
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uint32_t pchstrp17;
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} __attribute__((packed)) fpsba_t;
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// master
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typedef struct {
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uint32_t flmstr1;
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uint32_t flmstr2;
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uint32_t flmstr3;
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uint32_t flmstr4;
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uint32_t flmstr5;
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} __attribute__((packed)) fmba_t;
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// processor strap
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typedef struct {
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uint32_t data[8];
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} __attribute__((packed)) fmsba_t;
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// ME VSCC
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typedef struct {
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uint32_t jid;
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uint32_t vscc;
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} vscc_t;
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typedef struct {
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// Actual number of entries specified in vtl
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vscc_t entry[8];
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} vtba_t;
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typedef struct {
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int base, limit, size;
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} region_t;
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struct region_name {
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char *pretty;
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char *terse;
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};
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