802cbee789
Read the PCH Strap Length field in FLMAP1 as described in the "SPI Programming Guide" and print the number of fields specified there. This code dumps the following straps: * Intel GM45: 8 straps * Intel C216: 72 straps * Intel C240: 360 straps Add a new function to easily set PCH straps, which is useful for debugging. Change-Id: Ieb7891b214d82c984379794de9b3fe1a6d0d3466 Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/41693 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Philipp Hug <philipp@hug.cx> Reviewed-by: Christian Walter <christian.walter@9elements.com> Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
160 lines
3.1 KiB
C
160 lines
3.1 KiB
C
/* ifdtool - dump Intel Firmware Descriptor information */
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/* SPDX-License-Identifier: GPL-2.0-only */
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#include <stdint.h>
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#include <stdbool.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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/* port from flashrom */
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enum ich_chipset {
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CHIPSET_ICH_UNKNOWN,
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CHIPSET_ICH,
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CHIPSET_ICH2345,
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CHIPSET_ICH6,
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CHIPSET_POULSBO, /* SCH U* */
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CHIPSET_TUNNEL_CREEK, /* Atom E6xx */
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CHIPSET_CENTERTON, /* Atom S1220 S1240 S1260 */
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CHIPSET_ICH7,
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CHIPSET_ICH8,
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CHIPSET_ICH9,
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CHIPSET_ICH10,
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CHIPSET_5_SERIES_IBEX_PEAK,
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CHIPSET_6_SERIES_COUGAR_POINT,
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CHIPSET_7_SERIES_PANTHER_POINT,
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CHIPSET_8_SERIES_LYNX_POINT,
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CHIPSET_BAYTRAIL, /* Actually all with Silvermont architecture:
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* Bay Trail, Avoton/Rangeley
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*/
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CHIPSET_8_SERIES_LYNX_POINT_LP,
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CHIPSET_8_SERIES_WELLSBURG,
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CHIPSET_9_SERIES_WILDCAT_POINT,
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CHIPSET_9_SERIES_WILDCAT_POINT_LP,
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CHIPSET_100_SERIES_SUNRISE_POINT, /* also 6th/7th gen Core i/o (LP)
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* variants
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*/
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CHIPSET_C620_SERIES_LEWISBURG,
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};
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enum platform {
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PLATFORM_APL,
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PLATFORM_CNL,
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PLATFORM_GLK,
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PLATFORM_ICL,
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PLATFORM_JSL,
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PLATFORM_SKLKBL,
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PLATFORM_TGL,
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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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} __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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enum flash_regions {
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REGION_DESC,
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REGION_BIOS,
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REGION_ME,
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REGION_GBE,
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REGION_PDR,
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REGION_EC = 8,
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};
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typedef struct {
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uint32_t flreg[MAX_REGIONS];
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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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#define MAX_PCHSTRP 1024
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typedef struct {
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uint32_t pchstrp[MAX_PCHSTRP];
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} __attribute__((packed)) fpsba_t;
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/*
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* WR / RD bits start at different locations within the flmstr regs, but
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* otherwise have identical meaning.
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*/
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#define FLMSTR_WR_SHIFT_V1 24
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#define FLMSTR_WR_SHIFT_V2 20
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#define FLMSTR_RD_SHIFT_V1 16
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#define FLMSTR_RD_SHIFT_V2 8
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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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/* FIXME: Rationale for the limit of 8.
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* AFAICT it's 127, cf. flashrom's ich_descriptors_tool). */
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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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const char *pretty;
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const char *terse;
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const char *filename;
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const char *fmapname;
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};
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