| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2003-2004 Eric Biederman |
| * Copyright (C) 2005-2010 coresystems GmbH |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License as |
| * published by the Free Software Foundation; version 2 of |
| * the License. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, |
| * MA 02110-1301 USA |
| */ |
| |
| #include <console/console.h> |
| #include <ip_checksum.h> |
| #include <boot/coreboot_tables.h> |
| #include <string.h> |
| #include <version.h> |
| #include <device/device.h> |
| #include <stdlib.h> |
| #include <cbfs.h> |
| #include <cbmem.h> |
| #include <bootmem.h> |
| #if CONFIG_CHROMEOS |
| #if CONFIG_GENERATE_ACPI_TABLES |
| #include <arch/acpi.h> |
| #endif |
| #include <vendorcode/google/chromeos/chromeos.h> |
| #include <vendorcode/google/chromeos/gnvs.h> |
| #endif |
| #if CONFIG_ARCH_X86 |
| #include <cpu/x86/mtrr.h> |
| #endif |
| |
| static struct lb_header *lb_table_init(unsigned long addr) |
| { |
| struct lb_header *header; |
| |
| /* 16 byte align the address */ |
| addr += 15; |
| addr &= ~15; |
| |
| header = (void *)addr; |
| header->signature[0] = 'L'; |
| header->signature[1] = 'B'; |
| header->signature[2] = 'I'; |
| header->signature[3] = 'O'; |
| header->header_bytes = sizeof(*header); |
| header->header_checksum = 0; |
| header->table_bytes = 0; |
| header->table_checksum = 0; |
| header->table_entries = 0; |
| return header; |
| } |
| |
| static struct lb_record *lb_first_record(struct lb_header *header) |
| { |
| struct lb_record *rec; |
| rec = (void *)(((char *)header) + sizeof(*header)); |
| return rec; |
| } |
| |
| static struct lb_record *lb_last_record(struct lb_header *header) |
| { |
| struct lb_record *rec; |
| rec = (void *)(((char *)header) + sizeof(*header) + header->table_bytes); |
| return rec; |
| } |
| |
| static struct lb_record *lb_new_record(struct lb_header *header) |
| { |
| struct lb_record *rec; |
| rec = lb_last_record(header); |
| if (header->table_entries) { |
| header->table_bytes += rec->size; |
| } |
| rec = lb_last_record(header); |
| header->table_entries++; |
| rec->tag = LB_TAG_UNUSED; |
| rec->size = sizeof(*rec); |
| return rec; |
| } |
| |
| static struct lb_memory *lb_memory(struct lb_header *header) |
| { |
| struct lb_record *rec; |
| struct lb_memory *mem; |
| rec = lb_new_record(header); |
| mem = (struct lb_memory *)rec; |
| mem->tag = LB_TAG_MEMORY; |
| mem->size = sizeof(*mem); |
| return mem; |
| } |
| |
| static struct lb_serial *lb_serial(struct lb_header *header) |
| { |
| #if CONFIG_CONSOLE_SERIAL8250 |
| struct lb_record *rec; |
| struct lb_serial *serial; |
| rec = lb_new_record(header); |
| serial = (struct lb_serial *)rec; |
| serial->tag = LB_TAG_SERIAL; |
| serial->size = sizeof(*serial); |
| serial->type = LB_SERIAL_TYPE_IO_MAPPED; |
| serial->baseaddr = CONFIG_TTYS0_BASE; |
| serial->baud = CONFIG_TTYS0_BAUD; |
| return serial; |
| #elif CONFIG_CONSOLE_SERIAL8250MEM || CONFIG_CONSOLE_SERIAL_UART |
| if (uartmem_getbaseaddr()) { |
| struct lb_record *rec; |
| struct lb_serial *serial; |
| rec = lb_new_record(header); |
| serial = (struct lb_serial *)rec; |
| serial->tag = LB_TAG_SERIAL; |
| serial->size = sizeof(*serial); |
| serial->type = LB_SERIAL_TYPE_MEMORY_MAPPED; |
| serial->baseaddr = uartmem_getbaseaddr(); |
| serial->baud = CONFIG_TTYS0_BAUD; |
| return serial; |
| } else { |
| return NULL; |
| } |
| #else |
| return NULL; |
| #endif |
| } |
| |
| #if CONFIG_CONSOLE_SERIAL8250 || CONFIG_CONSOLE_SERIAL8250MEM || \ |
| CONFIG_CONSOLE_SERIAL_UART || CONFIG_USBDEBUG |
| static void add_console(struct lb_header *header, u16 consoletype) |
| { |
| struct lb_console *console; |
| |
| console = (struct lb_console *)lb_new_record(header); |
| console->tag = LB_TAG_CONSOLE; |
| console->size = sizeof(*console); |
| console->type = consoletype; |
| } |
| #endif |
| |
| static void lb_console(struct lb_header *header) |
| { |
| #if CONFIG_CONSOLE_SERIAL8250 |
| add_console(header, LB_TAG_CONSOLE_SERIAL8250); |
| #endif |
| #if CONFIG_CONSOLE_SERIAL8250MEM || CONFIG_CONSOLE_SERIAL_UART |
| add_console(header, LB_TAG_CONSOLE_SERIAL8250MEM); |
| #endif |
| #if CONFIG_USBDEBUG |
| add_console(header, LB_TAG_CONSOLE_EHCI); |
| #endif |
| } |
| |
| static void lb_framebuffer(struct lb_header *header) |
| { |
| #if CONFIG_FRAMEBUFFER_KEEP_VESA_MODE || CONFIG_MAINBOARD_DO_NATIVE_VGA_INIT |
| void fill_lb_framebuffer(struct lb_framebuffer *framebuffer); |
| int vbe_mode_info_valid(void); |
| |
| // If there isn't any mode info to put in the table, don't ask for it |
| // to be filled with junk. |
| if (!vbe_mode_info_valid()) |
| return; |
| struct lb_framebuffer *framebuffer; |
| framebuffer = (struct lb_framebuffer *)lb_new_record(header); |
| fill_lb_framebuffer(framebuffer); |
| framebuffer->tag = LB_TAG_FRAMEBUFFER; |
| framebuffer->size = sizeof(*framebuffer); |
| #endif |
| } |
| |
| #if CONFIG_CHROMEOS |
| static void lb_gpios(struct lb_header *header) |
| { |
| struct lb_gpios *gpios; |
| gpios = (struct lb_gpios *)lb_new_record(header); |
| gpios->tag = LB_TAG_GPIO; |
| gpios->size = sizeof(*gpios); |
| gpios->count = 0; |
| fill_lb_gpios(gpios); |
| } |
| |
| static void lb_vdat(struct lb_header *header) |
| { |
| #if CONFIG_GENERATE_ACPI_TABLES |
| struct lb_vdat* vdat; |
| |
| vdat = (struct lb_vdat *)lb_new_record(header); |
| vdat->tag = LB_TAG_VDAT; |
| vdat->size = sizeof(*vdat); |
| acpi_get_vdat_info(&vdat->vdat_addr, &vdat->vdat_size); |
| #endif |
| } |
| |
| static void lb_vbnv(struct lb_header *header) |
| { |
| #if CONFIG_PC80_SYSTEM |
| struct lb_vbnv* vbnv; |
| |
| vbnv = (struct lb_vbnv *)lb_new_record(header); |
| vbnv->tag = LB_TAG_VBNV; |
| vbnv->size = sizeof(*vbnv); |
| vbnv->vbnv_start = CONFIG_VBNV_OFFSET + 14; |
| vbnv->vbnv_size = CONFIG_VBNV_SIZE; |
| #endif |
| } |
| |
| #if CONFIG_VBOOT_VERIFY_FIRMWARE |
| static void lb_vboot_handoff(struct lb_header *header) |
| { |
| void *addr; |
| uint32_t size; |
| struct lb_vboot_handoff* vbho; |
| |
| if (vboot_get_handoff_info(&addr, &size)) |
| return; |
| |
| vbho = (struct lb_vboot_handoff *)lb_new_record(header); |
| vbho->tag = LB_TAB_VBOOT_HANDOFF; |
| vbho->size = sizeof(*vbho); |
| vbho->vboot_handoff_addr = (intptr_t)addr; |
| vbho->vboot_handoff_size = size; |
| } |
| #else |
| static inline void lb_vboot_handoff(struct lb_header *header) {} |
| #endif /* CONFIG_VBOOT_VERIFY_FIRMWARE */ |
| #endif /* CONFIG_CHROMEOS */ |
| |
| static void add_cbmem_pointers(struct lb_header *header) |
| { |
| /* |
| * These CBMEM sections' addresses are included in the coreboot table |
| * with the appropriate tags. |
| */ |
| const struct section_id { |
| int cbmem_id; |
| int table_tag; |
| } section_ids[] = { |
| {CBMEM_ID_TIMESTAMP, LB_TAG_TIMESTAMPS}, |
| {CBMEM_ID_CONSOLE, LB_TAG_CBMEM_CONSOLE}, |
| {CBMEM_ID_ACPI_GNVS, LB_TAG_ACPI_GNVS}, |
| }; |
| int i; |
| |
| for (i = 0; i < ARRAY_SIZE(section_ids); i++) { |
| const struct section_id *sid = section_ids + i; |
| struct lb_cbmem_ref *cbmem_ref; |
| void *cbmem_addr = cbmem_find(sid->cbmem_id); |
| |
| if (!cbmem_addr) |
| continue; /* This section is not present */ |
| |
| cbmem_ref = (struct lb_cbmem_ref *)lb_new_record(header); |
| if (!cbmem_ref) { |
| printk(BIOS_ERR, "No more room in coreboot table!\n"); |
| break; |
| } |
| cbmem_ref->tag = sid->table_tag; |
| cbmem_ref->size = sizeof(*cbmem_ref); |
| cbmem_ref->cbmem_addr = (unsigned long)cbmem_addr; |
| } |
| } |
| |
| static struct lb_mainboard *lb_mainboard(struct lb_header *header) |
| { |
| struct lb_record *rec; |
| struct lb_mainboard *mainboard; |
| rec = lb_new_record(header); |
| mainboard = (struct lb_mainboard *)rec; |
| mainboard->tag = LB_TAG_MAINBOARD; |
| |
| mainboard->size = (sizeof(*mainboard) + |
| strlen(mainboard_vendor) + 1 + |
| strlen(mainboard_part_number) + 1 + |
| 3) & ~3; |
| |
| mainboard->vendor_idx = 0; |
| mainboard->part_number_idx = strlen(mainboard_vendor) + 1; |
| |
| memcpy(mainboard->strings + mainboard->vendor_idx, |
| mainboard_vendor, strlen(mainboard_vendor) + 1); |
| memcpy(mainboard->strings + mainboard->part_number_idx, |
| mainboard_part_number, strlen(mainboard_part_number) + 1); |
| |
| return mainboard; |
| } |
| |
| static void lb_strings(struct lb_header *header) |
| { |
| static const struct { |
| uint32_t tag; |
| const char *string; |
| } strings[] = { |
| { LB_TAG_VERSION, coreboot_version, }, |
| { LB_TAG_EXTRA_VERSION, coreboot_extra_version, }, |
| { LB_TAG_BUILD, coreboot_build, }, |
| { LB_TAG_COMPILE_TIME, coreboot_compile_time, }, |
| { LB_TAG_COMPILE_BY, coreboot_compile_by, }, |
| { LB_TAG_COMPILE_HOST, coreboot_compile_host, }, |
| { LB_TAG_COMPILE_DOMAIN, coreboot_compile_domain, }, |
| { LB_TAG_COMPILER, coreboot_compiler, }, |
| { LB_TAG_LINKER, coreboot_linker, }, |
| { LB_TAG_ASSEMBLER, coreboot_assembler, }, |
| }; |
| unsigned int i; |
| for(i = 0; i < ARRAY_SIZE(strings); i++) { |
| struct lb_string *rec; |
| size_t len; |
| rec = (struct lb_string *)lb_new_record(header); |
| len = strlen(strings[i].string); |
| rec->tag = strings[i].tag; |
| rec->size = (sizeof(*rec) + len + 1 + 3) & ~3; |
| memcpy(rec->string, strings[i].string, len+1); |
| } |
| |
| } |
| |
| static struct lb_forward *lb_forward(struct lb_header *header, struct lb_header *next_header) |
| { |
| struct lb_record *rec; |
| struct lb_forward *forward; |
| rec = lb_new_record(header); |
| forward = (struct lb_forward *)rec; |
| forward->tag = LB_TAG_FORWARD; |
| forward->size = sizeof(*forward); |
| forward->forward = (uint64_t)(unsigned long)next_header; |
| return forward; |
| } |
| |
| static unsigned long lb_table_fini(struct lb_header *head) |
| { |
| struct lb_record *rec, *first_rec; |
| rec = lb_last_record(head); |
| if (head->table_entries) { |
| head->table_bytes += rec->size; |
| } |
| |
| first_rec = lb_first_record(head); |
| head->table_checksum = compute_ip_checksum(first_rec, head->table_bytes); |
| head->header_checksum = 0; |
| head->header_checksum = compute_ip_checksum(head, sizeof(*head)); |
| printk(BIOS_DEBUG, |
| "Wrote coreboot table at: %p, 0x%x bytes, checksum %x\n", |
| head, head->table_bytes, head->table_checksum); |
| return (unsigned long)rec + rec->size; |
| } |
| |
| unsigned long write_coreboot_table( |
| unsigned long low_table_start, unsigned long low_table_end, |
| unsigned long rom_table_start, unsigned long rom_table_end) |
| { |
| struct lb_header *head; |
| |
| if (low_table_start || low_table_end) { |
| printk(BIOS_DEBUG, "Writing table forward entry at 0x%08lx\n", |
| low_table_end); |
| head = lb_table_init(low_table_end); |
| lb_forward(head, (struct lb_header*)rom_table_end); |
| |
| low_table_end = (unsigned long) lb_table_fini(head); |
| printk(BIOS_DEBUG, "Table forward entry ends at 0x%08lx.\n", |
| low_table_end); |
| low_table_end = ALIGN(low_table_end, 4096); |
| printk(BIOS_DEBUG, "... aligned to 0x%08lx\n", low_table_end); |
| } |
| |
| printk(BIOS_DEBUG, "Writing coreboot table at 0x%08lx\n", |
| rom_table_end); |
| |
| head = lb_table_init(rom_table_end); |
| rom_table_end = (unsigned long)head; |
| printk(BIOS_DEBUG, "rom_table_end = 0x%08lx\n", rom_table_end); |
| rom_table_end = ALIGN(rom_table_end, (64 * 1024)); |
| printk(BIOS_DEBUG, "... aligned to 0x%08lx\n", rom_table_end); |
| |
| #if CONFIG_USE_OPTION_TABLE |
| { |
| struct cmos_option_table *option_table = cbfs_get_file_content( |
| CBFS_DEFAULT_MEDIA, "cmos_layout.bin", |
| CBFS_COMPONENT_CMOS_LAYOUT, NULL); |
| if (option_table) { |
| struct lb_record *rec_dest = lb_new_record(head); |
| /* Copy the option config table, it's already a lb_record... */ |
| memcpy(rec_dest, option_table, option_table->size); |
| } else { |
| printk(BIOS_ERR, "cmos_layout.bin could not be found!\n"); |
| } |
| } |
| #endif |
| |
| /* Initialize the memory map at boot time. */ |
| bootmem_init(); |
| |
| if (low_table_start || low_table_end) { |
| uint64_t size = low_table_end - low_table_start; |
| /* Record the mptable and the the lb_table. |
| * (This will be adjusted later) */ |
| bootmem_add_range(low_table_start, size, LB_MEM_TABLE); |
| } |
| |
| /* Record the pirq table, acpi tables, and maybe the mptable. However, |
| * these only need to be added when the rom_table is sitting below |
| * 1MiB. If it isn't that means high tables are being written. |
| * The code below handles high tables correctly. */ |
| if (rom_table_end <= (1 << 20)) { |
| uint64_t size = rom_table_end - rom_table_start; |
| bootmem_add_range(rom_table_start, size, LB_MEM_TABLE); |
| } |
| |
| /* No other memory areas can be added after the memory table has been |
| * committed as the entries won't show up in the serialize mem table. */ |
| bootmem_write_memory_table(lb_memory(head)); |
| |
| /* Record our motherboard */ |
| lb_mainboard(head); |
| /* Record the serial port, if present */ |
| lb_serial(head); |
| /* Record our console setup */ |
| lb_console(head); |
| /* Record our various random string information */ |
| lb_strings(head); |
| /* Record our framebuffer */ |
| lb_framebuffer(head); |
| |
| #if CONFIG_CHROMEOS |
| /* Record our GPIO settings (ChromeOS specific) */ |
| lb_gpios(head); |
| |
| /* pass along the VDAT buffer address */ |
| lb_vdat(head); |
| |
| /* pass along VBNV offsets in CMOS */ |
| lb_vbnv(head); |
| |
| /* pass along the vboot_handoff address. */ |
| lb_vboot_handoff(head); |
| #endif |
| add_cbmem_pointers(head); |
| |
| /* Remember where my valid memory ranges are */ |
| return lb_table_fini(head); |
| } |