| /* |
| * |
| * Copyright (C) 2008 Advanced Micro Devices, Inc. |
| * Copyright (C) 2009 coresystems GmbH |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * 3. The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| */ |
| |
| #include <libpayload-config.h> |
| #include <libpayload.h> |
| #include <commonlib/bsd/cbmem_id.h> |
| #include <coreboot_tables.h> |
| #include <stdint.h> |
| |
| /* |
| * The code in this file applies to all coreboot architectures. Some coreboot |
| * table tags are architecture specific, they are handled by their respective |
| * cb_parse_arch_specific() functions. |
| */ |
| |
| /* === Parsing code === */ |
| /* This is the generic parsing code. */ |
| |
| static void cb_parse_memory(void *ptr, struct sysinfo_t *info) |
| { |
| struct cb_memory *mem = ptr; |
| int count = MEM_RANGE_COUNT(mem); |
| int i; |
| |
| if (count > SYSINFO_MAX_MEM_RANGES) |
| count = SYSINFO_MAX_MEM_RANGES; |
| |
| info->n_memranges = 0; |
| |
| for (i = 0; i < count; i++) { |
| struct cb_memory_range *range = MEM_RANGE_PTR(mem, i); |
| |
| #if CONFIG(LP_MEMMAP_RAM_ONLY) |
| if (range->type != CB_MEM_RAM) |
| continue; |
| #endif |
| |
| info->memrange[info->n_memranges].base = range->start; |
| info->memrange[info->n_memranges].size = range->size; |
| info->memrange[info->n_memranges].type = range->type; |
| |
| info->n_memranges++; |
| } |
| } |
| |
| static void cb_parse_serial(void *ptr, struct sysinfo_t *info) |
| { |
| info->cb_serial = virt_to_phys(ptr); |
| } |
| |
| static void cb_parse_vbnv(unsigned char *ptr, struct sysinfo_t *info) |
| { |
| struct lb_range *vbnv = (struct lb_range *)ptr; |
| |
| info->vbnv_start = vbnv->range_start; |
| info->vbnv_size = vbnv->range_size; |
| } |
| |
| static void cb_parse_mmc_info(unsigned char *ptr, struct sysinfo_t *info) |
| { |
| struct cb_mmc_info *mmc_info = (struct cb_mmc_info *)ptr; |
| |
| info->mmc_early_wake_status = mmc_info->early_cmd1_status; |
| } |
| |
| static void cb_parse_gpios(unsigned char *ptr, struct sysinfo_t *info) |
| { |
| int i; |
| struct cb_gpios *gpios = (struct cb_gpios *)ptr; |
| |
| info->num_gpios = (gpios->count < SYSINFO_MAX_GPIOS) ? |
| (gpios->count) : SYSINFO_MAX_GPIOS; |
| |
| for (i = 0; i < info->num_gpios; i++) |
| info->gpios[i] = gpios->gpios[i]; |
| } |
| |
| static void cb_parse_mac_addresses(unsigned char *ptr, |
| struct sysinfo_t *info) |
| { |
| struct cb_macs *macs = (struct cb_macs *)ptr; |
| int i; |
| |
| info->num_macs = (macs->count < ARRAY_SIZE(info->macs)) ? |
| macs->count : ARRAY_SIZE(info->macs); |
| |
| for (i = 0; i < info->num_macs; i++) |
| info->macs[i] = macs->mac_addrs[i]; |
| } |
| |
| static void cb_parse_board_config(unsigned char *ptr, struct sysinfo_t *info) |
| { |
| struct cb_board_config *const config = (struct cb_board_config *)ptr; |
| info->fw_config = config->fw_config; |
| info->board_id = config->board_id; |
| info->ram_code = config->ram_code; |
| info->sku_id = config->sku_id; |
| } |
| |
| #if CONFIG(LP_NVRAM) |
| static void cb_parse_optiontable(void *ptr, struct sysinfo_t *info) |
| { |
| /* ptr is already virtual, but we want to keep physical addresses */ |
| info->cmos_option_table = virt_to_phys(ptr); |
| } |
| |
| static void cb_parse_checksum(void *ptr, struct sysinfo_t *info) |
| { |
| struct cb_cmos_checksum *cmos_cksum = ptr; |
| info->cmos_range_start = cmos_cksum->range_start; |
| info->cmos_range_end = cmos_cksum->range_end; |
| info->cmos_checksum_location = cmos_cksum->location; |
| } |
| #endif |
| |
| #if CONFIG(LP_COREBOOT_VIDEO_CONSOLE) |
| static void cb_parse_framebuffer(void *ptr, struct sysinfo_t *info) |
| { |
| info->framebuffer = *(struct cb_framebuffer *)ptr; |
| } |
| #endif |
| |
| static void cb_parse_string(const void *const ptr, uintptr_t *const info) |
| { |
| /* ptr is already virtual (str->string just an offset to that), |
| but we want to keep physical addresses */ |
| const struct cb_string *const str = ptr; |
| *info = virt_to_phys(str->string); |
| } |
| |
| static void cb_parse_ramoops(void *ptr, struct sysinfo_t *info) |
| { |
| struct lb_range *ramoops = (struct lb_range *)ptr; |
| |
| info->ramoops_buffer = ramoops->range_start; |
| info->ramoops_buffer_size = ramoops->range_size; |
| } |
| |
| static void cb_parse_mtc(void *ptr, struct sysinfo_t *info) |
| { |
| struct lb_range *mtc = (struct lb_range *)ptr; |
| |
| info->mtc_start = mtc->range_start; |
| info->mtc_size = mtc->range_size; |
| } |
| |
| static void cb_parse_spi_flash(void *ptr, struct sysinfo_t *info) |
| { |
| struct cb_spi_flash *flash = (struct cb_spi_flash *)ptr; |
| |
| info->spi_flash.size = flash->flash_size; |
| info->spi_flash.sector_size = flash->sector_size; |
| info->spi_flash.erase_cmd = flash->erase_cmd; |
| |
| if (flash->mmap_count == 0) |
| return; |
| |
| info->spi_flash.mmap_window_count = MIN(flash->mmap_count, SYSINFO_MAX_MMAP_WINDOWS); |
| memcpy(info->spi_flash.mmap_table, flash->mmap_table, |
| info->spi_flash.mmap_window_count * sizeof(struct flash_mmap_window)); |
| } |
| |
| static void cb_parse_boot_media_params(unsigned char *ptr, |
| struct sysinfo_t *info) |
| { |
| struct cb_boot_media_params *const bmp = |
| (struct cb_boot_media_params *)ptr; |
| info->fmap_offset = bmp->fmap_offset; |
| info->cbfs_offset = bmp->cbfs_offset; |
| info->cbfs_size = bmp->cbfs_size; |
| info->boot_media_size = bmp->boot_media_size; |
| } |
| |
| #if CONFIG(LP_TIMER_RDTSC) |
| static void cb_parse_tsc_info(void *ptr, struct sysinfo_t *info) |
| { |
| const struct cb_tsc_info *tsc_info = ptr; |
| |
| if (tsc_info->freq_khz == 0) |
| return; |
| |
| /* Honor the TSC frequency passed to the payload. */ |
| info->cpu_khz = tsc_info->freq_khz; |
| } |
| #endif |
| |
| static void cb_parse_cbmem_entry(void *ptr, struct sysinfo_t *info) |
| { |
| const struct cb_cbmem_entry *cbmem_entry = ptr; |
| |
| if (cbmem_entry->size != sizeof(*cbmem_entry)) |
| return; |
| |
| switch (cbmem_entry->id) { |
| case CBMEM_ID_ACPI_CNVS: |
| info->acpi_cnvs = cbmem_entry->address; |
| break; |
| case CBMEM_ID_ACPI_GNVS: |
| info->acpi_gnvs = cbmem_entry->address; |
| break; |
| case CBMEM_ID_CBFS_RO_MCACHE: |
| info->cbfs_ro_mcache_offset = cbmem_entry->address; |
| info->cbfs_ro_mcache_size = cbmem_entry->entry_size; |
| break; |
| case CBMEM_ID_CBFS_RW_MCACHE: |
| info->cbfs_rw_mcache_offset = cbmem_entry->address; |
| info->cbfs_rw_mcache_size = cbmem_entry->entry_size; |
| break; |
| case CBMEM_ID_CONSOLE: |
| info->cbmem_cons = cbmem_entry->address; |
| break; |
| case CBMEM_ID_MRCDATA: |
| info->mrc_cache = cbmem_entry->address; |
| break; |
| case CBMEM_ID_VBOOT_WORKBUF: |
| info->vboot_workbuf = cbmem_entry->address; |
| break; |
| case CBMEM_ID_TIMESTAMP: |
| info->tstamp_table = cbmem_entry->address; |
| break; |
| case CBMEM_ID_VPD: |
| info->chromeos_vpd = cbmem_entry->address; |
| break; |
| case CBMEM_ID_FMAP: |
| info->fmap_cache = cbmem_entry->address; |
| break; |
| case CBMEM_ID_WIFI_CALIBRATION: |
| info->wifi_calibration = cbmem_entry->address; |
| break; |
| case CBMEM_ID_TYPE_C_INFO: |
| info->type_c_info = cbmem_entry->address; |
| break; |
| case CBMEM_ID_MEM_CHIP_INFO: |
| info->mem_chip_base = cbmem_entry->address; |
| break; |
| default: |
| break; |
| } |
| } |
| |
| static void cb_parse_pcie(void *ptr, struct sysinfo_t *info) |
| { |
| const struct cb_pcie *pcie = ptr; |
| |
| info->pcie_ctrl_base = pcie->ctrl_base; |
| } |
| |
| static void cb_parse_rsdp(void *ptr, struct sysinfo_t *info) |
| { |
| const struct cb_acpi_rsdp *cb_acpi_rsdp = ptr; |
| info->acpi_rsdp = cb_acpi_rsdp->rsdp_pointer; |
| } |
| |
| int cb_parse_header(void *addr, int len, struct sysinfo_t *info) |
| { |
| struct cb_header *header; |
| unsigned char *ptr = addr; |
| void *forward; |
| int i; |
| |
| for (i = 0; i < len; i += 16, ptr += 16) { |
| header = (struct cb_header *)ptr; |
| if (!strncmp((const char *)header->signature, "LBIO", 4)) |
| break; |
| } |
| |
| /* We walked the entire space and didn't find anything. */ |
| if (i >= len) |
| return -1; |
| |
| /* Make sure the checksums match. */ |
| if (ipchksum((u16 *) header, sizeof(*header)) != 0) |
| return -1; |
| |
| if (!header->table_bytes) |
| return 0; |
| |
| if (ipchksum((u16 *) (ptr + sizeof(*header)), |
| header->table_bytes) != header->table_checksum) |
| return -1; |
| |
| info->cb_header = virt_to_phys(header); |
| |
| /* Initialize IDs as undefined in case they don't show up in table. */ |
| info->board_id = UNDEFINED_STRAPPING_ID; |
| info->ram_code = UNDEFINED_STRAPPING_ID; |
| info->sku_id = UNDEFINED_STRAPPING_ID; |
| info->fw_config = UNDEFINED_FW_CONFIG; |
| |
| /* Now, walk the tables. */ |
| ptr += header->header_bytes; |
| |
| for (i = 0; i < header->table_entries; i++) { |
| struct cb_record *rec = (struct cb_record *)ptr; |
| |
| /* We only care about a few tags here (maybe more later). */ |
| switch (rec->tag) { |
| case CB_TAG_FORWARD: |
| forward = phys_to_virt((void *)(unsigned long) |
| ((struct cb_forward *)rec)->forward); |
| return cb_parse_header(forward, len, info); |
| case CB_TAG_MEMORY: |
| cb_parse_memory(ptr, info); |
| break; |
| case CB_TAG_SERIAL: |
| cb_parse_serial(ptr, info); |
| break; |
| case CB_TAG_VERSION: |
| cb_parse_string(ptr, &info->cb_version); |
| break; |
| case CB_TAG_EXTRA_VERSION: |
| cb_parse_string(ptr, &info->extra_version); |
| break; |
| case CB_TAG_BUILD: |
| cb_parse_string(ptr, &info->build); |
| break; |
| case CB_TAG_COMPILE_TIME: |
| cb_parse_string(ptr, &info->compile_time); |
| break; |
| case CB_TAG_COMPILE_BY: |
| cb_parse_string(ptr, &info->compile_by); |
| break; |
| case CB_TAG_COMPILE_HOST: |
| cb_parse_string(ptr, &info->compile_host); |
| break; |
| case CB_TAG_COMPILE_DOMAIN: |
| cb_parse_string(ptr, &info->compile_domain); |
| break; |
| case CB_TAG_COMPILER: |
| cb_parse_string(ptr, &info->compiler); |
| break; |
| case CB_TAG_LINKER: |
| cb_parse_string(ptr, &info->linker); |
| break; |
| case CB_TAG_ASSEMBLER: |
| cb_parse_string(ptr, &info->assembler); |
| break; |
| #if CONFIG(LP_NVRAM) |
| case CB_TAG_CMOS_OPTION_TABLE: |
| cb_parse_optiontable(ptr, info); |
| break; |
| case CB_TAG_OPTION_CHECKSUM: |
| cb_parse_checksum(ptr, info); |
| break; |
| #endif |
| #if CONFIG(LP_COREBOOT_VIDEO_CONSOLE) |
| // FIXME we should warn on serial if coreboot set up a |
| // framebuffer buf the payload does not know about it. |
| case CB_TAG_FRAMEBUFFER: |
| cb_parse_framebuffer(ptr, info); |
| break; |
| #endif |
| case CB_TAG_MAINBOARD: |
| info->cb_mainboard = virt_to_phys(ptr); |
| break; |
| case CB_TAG_GPIO: |
| cb_parse_gpios(ptr, info); |
| break; |
| case CB_TAG_VBNV: |
| cb_parse_vbnv(ptr, info); |
| break; |
| case CB_TAG_MAC_ADDRS: |
| cb_parse_mac_addresses(ptr, info); |
| break; |
| case CB_TAG_SERIALNO: |
| cb_parse_string(ptr, &info->serialno); |
| break; |
| case CB_TAG_BOARD_CONFIG: |
| cb_parse_board_config(ptr, info); |
| break; |
| case CB_TAG_RAM_OOPS: |
| cb_parse_ramoops(ptr, info); |
| break; |
| case CB_TAG_SPI_FLASH: |
| cb_parse_spi_flash(ptr, info); |
| break; |
| case CB_TAG_MMC_INFO: |
| cb_parse_mmc_info(ptr, info); |
| break; |
| case CB_TAG_MTC: |
| cb_parse_mtc(ptr, info); |
| break; |
| case CB_TAG_BOOT_MEDIA_PARAMS: |
| cb_parse_boot_media_params(ptr, info); |
| break; |
| case CB_TAG_CBMEM_ENTRY: |
| cb_parse_cbmem_entry(ptr, info); |
| break; |
| #if CONFIG(LP_TIMER_RDTSC) |
| case CB_TAG_TSC_INFO: |
| cb_parse_tsc_info(ptr, info); |
| break; |
| #endif |
| case CB_TAG_ACPI_RSDP: |
| cb_parse_rsdp(ptr, info); |
| break; |
| case CB_TAG_PCIE: |
| cb_parse_pcie(ptr, info); |
| break; |
| default: |
| cb_parse_arch_specific(rec, info); |
| break; |
| } |
| |
| ptr += rec->size; |
| } |
| |
| return 0; |
| } |