| /* |
| This software and ancillary information (herein called SOFTWARE ) |
| called LinuxBIOS is made available under the terms described |
| here. The SOFTWARE has been approved for release with associated |
| LA-CC Number 00-34 . Unless otherwise indicated, this SOFTWARE has |
| been authored by an employee or employees of the University of |
| California, operator of the Los Alamos National Laboratory under |
| Contract No. W-7405-ENG-36 with the U.S. Department of Energy. The |
| U.S. Government has rights to use, reproduce, and distribute this |
| SOFTWARE. The public may copy, distribute, prepare derivative works |
| and publicly display this SOFTWARE without charge, provided that this |
| Notice and any statement of authorship are reproduced on all copies. |
| Neither the Government nor the University makes any warranty, express |
| or implied, or assumes any liability or responsibility for the use of |
| this SOFTWARE. If SOFTWARE is modified to produce derivative works, |
| such modified SOFTWARE should be clearly marked, so as not to confuse |
| it with the version available from LANL. |
| */ |
| /* Copyright 2000, Ron Minnich, Advanced Computing Lab, LANL |
| * rminnich@lanl.gov |
| */ |
| |
| |
| /* |
| * C Bootstrap code for the coreboot |
| */ |
| |
| #include <console/console.h> |
| #include <version.h> |
| #include <device/device.h> |
| #include <device/pci.h> |
| #include <delay.h> |
| #include <stdlib.h> |
| #include <reset.h> |
| #include <boot/tables.h> |
| #include <boot/elf.h> |
| #include <cbfs.h> |
| #include <lib.h> |
| #if CONFIG_HAVE_ACPI_RESUME |
| #include <arch/acpi.h> |
| #endif |
| #if CONFIG_WRITE_HIGH_TABLES |
| #include <cbmem.h> |
| #endif |
| #include <timestamp.h> |
| |
| /** |
| * @brief Main function of the RAM part of coreboot. |
| * |
| * Coreboot is divided into Pre-RAM part and RAM part. |
| * |
| * Device Enumeration: |
| * In the dev_enumerate() phase, |
| */ |
| |
| void hardwaremain(int boot_complete); |
| |
| void hardwaremain(int boot_complete) |
| { |
| struct lb_memory *lb_mem; |
| #if CONFIG_COLLECT_TIMESTAMPS |
| tsc_t timestamps[6]; |
| timestamps[0] = rdtsc(); |
| #endif |
| post_code(POST_ENTRY_RAMSTAGE); |
| |
| /* console_init() MUST PRECEDE ALL printk()! */ |
| console_init(); |
| |
| post_code(POST_CONSOLE_READY); |
| |
| printk(BIOS_NOTICE, "coreboot-%s%s %s %s...\n", |
| coreboot_version, coreboot_extra_version, coreboot_build, |
| (boot_complete)?"rebooting":"booting"); |
| |
| post_code(POST_CONSOLE_BOOT_MSG); |
| |
| /* If we have already booted attempt a hard reboot */ |
| if (boot_complete) { |
| hard_reset(); |
| } |
| |
| /* FIXME: Is there a better way to handle this? */ |
| init_timer(); |
| |
| #if CONFIG_COLLECT_TIMESTAMPS |
| timestamps[1] = rdtsc(); |
| #endif |
| /* Find the devices we don't have hard coded knowledge about. */ |
| dev_enumerate(); |
| post_code(POST_DEVICE_ENUMERATION_COMPLETE); |
| |
| #if CONFIG_COLLECT_TIMESTAMPS |
| timestamps[2] = rdtsc(); |
| #endif |
| /* Now compute and assign the bus resources. */ |
| dev_configure(); |
| post_code(POST_DEVICE_CONFIGURATION_COMPLETE); |
| |
| #if CONFIG_COLLECT_TIMESTAMPS |
| timestamps[3] = rdtsc(); |
| #endif |
| /* Now actually enable devices on the bus */ |
| dev_enable(); |
| post_code(POST_DEVICES_ENABLED); |
| |
| #if CONFIG_COLLECT_TIMESTAMPS |
| timestamps[4] = rdtsc(); |
| #endif |
| /* And of course initialize devices on the bus */ |
| dev_initialize(); |
| post_code(POST_DEVICES_INITIALIZED); |
| |
| #if CONFIG_COLLECT_TIMESTAMPS |
| timestamps[5] = rdtsc(); |
| #endif |
| |
| #if CONFIG_WRITE_HIGH_TABLES |
| cbmem_initialize(); |
| #if CONFIG_CONSOLE_CBMEM |
| cbmemc_reinit(); |
| #endif |
| #endif |
| #if CONFIG_HAVE_ACPI_RESUME |
| suspend_resume(); |
| post_code(0x8a); |
| #endif |
| |
| timestamp_add(TS_START_RAMSTAGE, timestamps[0]); |
| timestamp_add(TS_DEVICE_ENUMERATE, timestamps[1]); |
| timestamp_add(TS_DEVICE_CONFIGURE, timestamps[2]); |
| timestamp_add(TS_DEVICE_ENABLE, timestamps[3]); |
| timestamp_add(TS_DEVICE_INITIALIZE, timestamps[4]); |
| timestamp_add(TS_DEVICE_DONE, timestamps[5]); |
| timestamp_add_now(TS_CBMEM_POST); |
| |
| if (cbmem_post_handling) |
| cbmem_post_handling(); |
| |
| timestamp_add_now(TS_WRITE_TABLES); |
| |
| /* Now that we have collected all of our information |
| * write our configuration tables. |
| */ |
| lb_mem = write_tables(); |
| |
| timestamp_add_now(TS_LOAD_PAYLOAD); |
| |
| void *payload; |
| payload = cbfs_load_payload(lb_mem, CONFIG_CBFS_PREFIX "/payload"); |
| if (! payload) |
| die("Could not find a payload\n"); |
| |
| printk(BIOS_DEBUG, "Got a payload\n"); |
| /* Before we go off to run the payload, see if |
| * we stayed within our bounds. |
| */ |
| checkstack(&_estack, 0); |
| |
| selfboot(lb_mem, payload); |
| printk(BIOS_EMERG, "Boot failed"); |
| } |
| |