493937e1d6
This change adds details about the memory map windows to translate addresses between SPI flash space and host address space to coreboot tables. This is useful for payloads to setup the translation using the decode windows already known to coreboot. Until now, there was a single decode window at the top of 4G used by all x86 platforms. However, going forward, platforms might support more decode windows and hence in order to avoid duplication in payloads this information is filled in coreboot tables. `lb_spi_flash()` is updated to fill in the details about these windows by making a call to `spi_flash_get_mmap_windows()` which is implemented by the driver providing the boot media mapping device. BUG=b:171534504 Signed-off-by: Furquan Shaikh <furquan@google.com> Change-Id: I00ae33d9b53fecd0a8eadd22531fdff8bde9ee94 Reviewed-on: https://review.coreboot.org/c/coreboot/+/48185 Reviewed-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
168 lines
4.6 KiB
C
168 lines
4.6 KiB
C
/*
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*
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* Copyright (C) 2008 Advanced Micro Devices, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef _SYSINFO_H
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#define _SYSINFO_H
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#include <pci/pci.h>
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#include <stdint.h>
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/* Maximum number of memory range definitions. */
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#define SYSINFO_MAX_MEM_RANGES 32
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/* Allow a maximum of 8 GPIOs */
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#define SYSINFO_MAX_GPIOS 8
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/* Up to 10 MAC addresses */
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#define SYSINFO_MAX_MACS 10
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/* Maximum of 2 MMAP windows for decoding SPI flash. */
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#define SYSINFO_MAX_MMAP_WINDOWS 2
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#include <coreboot_tables.h>
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/*
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* This is a collection of information and pointers gathered
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* mostly from the coreboot table.
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*
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* We do not store virtual pointers in here to avoid problems
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* with self-relocating payloads.
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*/
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struct sysinfo_t {
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unsigned int cpu_khz;
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uintptr_t cb_serial;
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unsigned short ser_ioport;
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unsigned long ser_base; // for mmapped serial
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int n_memranges;
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struct memrange {
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unsigned long long base;
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unsigned long long size;
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unsigned int type;
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} memrange[SYSINFO_MAX_MEM_RANGES];
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uintptr_t cmos_option_table;
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u32 cmos_range_start;
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u32 cmos_range_end;
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u32 cmos_checksum_location;
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u32 vbnv_start;
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u32 vbnv_size;
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uintptr_t version;
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uintptr_t extra_version;
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uintptr_t build;
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uintptr_t compile_time;
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uintptr_t compile_by;
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uintptr_t compile_host;
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uintptr_t compile_domain;
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uintptr_t compiler;
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uintptr_t linker;
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uintptr_t assembler;
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uintptr_t cb_version;
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struct cb_framebuffer framebuffer;
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int num_gpios;
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struct cb_gpio gpios[SYSINFO_MAX_GPIOS];
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int num_macs;
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struct mac_address macs[SYSINFO_MAX_MACS];
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uintptr_t serialno;
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unsigned long *mbtable; /** Pointer to the multiboot table */
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uintptr_t cb_header;
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uintptr_t cb_mainboard;
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uintptr_t vboot_workbuf;
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#if CONFIG(LP_ARCH_X86)
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int x86_rom_var_mtrr_index;
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#endif
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uintptr_t tstamp_table;
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uintptr_t cbmem_cons;
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uintptr_t mrc_cache;
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uintptr_t acpi_gnvs;
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#define UNDEFINED_STRAPPING_ID (~0)
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#define UNDEFINED_FW_CONFIG ~((uint64_t)0)
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u32 board_id;
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u32 ram_code;
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u32 sku_id;
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/*
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* A payload using this field is responsible for ensuring it checks its
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* value against UNDEFINED_FW_CONFIG before using it.
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*/
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u64 fw_config;
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uintptr_t wifi_calibration;
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uint64_t ramoops_buffer;
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uint32_t ramoops_buffer_size;
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struct {
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uint32_t size;
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uint32_t sector_size;
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uint32_t erase_cmd;
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uint32_t mmap_window_count;
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struct flash_mmap_window mmap_table[SYSINFO_MAX_MMAP_WINDOWS];
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} spi_flash;
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uint64_t fmap_offset;
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uint64_t cbfs_offset;
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uint64_t cbfs_size;
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uint64_t boot_media_size;
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uint64_t mtc_start;
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uint32_t mtc_size;
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uintptr_t chromeos_vpd;
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int mmc_early_wake_status;
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/* Pointer to FMAP cache in CBMEM */
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uintptr_t fmap_cache;
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#if CONFIG(LP_PCI)
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struct pci_access pacc;
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#endif
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};
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extern struct sysinfo_t lib_sysinfo;
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/*
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* Check if this is an architecture specific coreboot table record and process
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* it, if it is. Return 1 if record type was recognized, 0 otherwise.
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*/
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int cb_parse_arch_specific(struct cb_record *rec, struct sysinfo_t *info);
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/*
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* Check if the region in range addr..addr+len contains a 16 byte aligned
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* coreboot table. If it does - process the table filling up the sysinfo
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* structure with information from the table. Return 0 on success and -1 on
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* failure.
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*/
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int cb_parse_header(void *addr, int len, struct sysinfo_t *info);
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#endif
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