mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-14 15:23:07 +00:00
58e2a35f2e
It should be fsp_continue(). Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
360 lines
7.3 KiB
C
360 lines
7.3 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* (C) Copyright 2008-2011
|
|
* Graeme Russ, <graeme.russ@gmail.com>
|
|
*
|
|
* (C) Copyright 2002
|
|
* Daniel Engström, Omicron Ceti AB, <daniel@omicron.se>
|
|
*
|
|
* (C) Copyright 2002
|
|
* Sysgo Real-Time Solutions, GmbH <www.elinos.com>
|
|
* Marius Groeger <mgroeger@sysgo.de>
|
|
*
|
|
* (C) Copyright 2002
|
|
* Sysgo Real-Time Solutions, GmbH <www.elinos.com>
|
|
* Alex Zuepke <azu@sysgo.de>
|
|
*
|
|
* Part of this file is adapted from coreboot
|
|
* src/arch/x86/lib/cpu.c
|
|
*/
|
|
|
|
#define LOG_CATEGORY UCLASS_CPU
|
|
|
|
#include <common.h>
|
|
#include <bootstage.h>
|
|
#include <command.h>
|
|
#include <cpu_func.h>
|
|
#include <dm.h>
|
|
#include <errno.h>
|
|
#include <init.h>
|
|
#include <irq.h>
|
|
#include <log.h>
|
|
#include <malloc.h>
|
|
#include <syscon.h>
|
|
#include <acpi/acpi_s3.h>
|
|
#include <acpi/acpi_table.h>
|
|
#include <asm/acpi.h>
|
|
#include <asm/control_regs.h>
|
|
#include <asm/coreboot_tables.h>
|
|
#include <asm/cpu.h>
|
|
#include <asm/global_data.h>
|
|
#include <asm/lapic.h>
|
|
#include <asm/microcode.h>
|
|
#include <asm/mp.h>
|
|
#include <asm/mrccache.h>
|
|
#include <asm/msr.h>
|
|
#include <asm/mtrr.h>
|
|
#include <asm/post.h>
|
|
#include <asm/processor.h>
|
|
#include <asm/processor-flags.h>
|
|
#include <asm/interrupt.h>
|
|
#include <asm/tables.h>
|
|
#include <linux/compiler.h>
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
#ifndef CONFIG_TPL_BUILD
|
|
static const char *const x86_vendor_name[] = {
|
|
[X86_VENDOR_INTEL] = "Intel",
|
|
[X86_VENDOR_CYRIX] = "Cyrix",
|
|
[X86_VENDOR_AMD] = "AMD",
|
|
[X86_VENDOR_UMC] = "UMC",
|
|
[X86_VENDOR_NEXGEN] = "NexGen",
|
|
[X86_VENDOR_CENTAUR] = "Centaur",
|
|
[X86_VENDOR_RISE] = "Rise",
|
|
[X86_VENDOR_TRANSMETA] = "Transmeta",
|
|
[X86_VENDOR_NSC] = "NSC",
|
|
[X86_VENDOR_SIS] = "SiS",
|
|
};
|
|
#endif
|
|
|
|
int __weak x86_cleanup_before_linux(void)
|
|
{
|
|
int ret;
|
|
|
|
ret = mp_park_aps();
|
|
if (ret)
|
|
return log_msg_ret("park", ret);
|
|
bootstage_stash((void *)CONFIG_BOOTSTAGE_STASH_ADDR,
|
|
CONFIG_BOOTSTAGE_STASH_SIZE);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int x86_init_cache(void)
|
|
{
|
|
enable_caches();
|
|
|
|
return 0;
|
|
}
|
|
int init_cache(void) __attribute__((weak, alias("x86_init_cache")));
|
|
|
|
void flush_cache(unsigned long dummy1, unsigned long dummy2)
|
|
{
|
|
asm("wbinvd\n");
|
|
}
|
|
|
|
/* Define these functions to allow ehch-hcd to function */
|
|
void flush_dcache_range(unsigned long start, unsigned long stop)
|
|
{
|
|
}
|
|
|
|
void invalidate_dcache_range(unsigned long start, unsigned long stop)
|
|
{
|
|
}
|
|
|
|
void dcache_enable(void)
|
|
{
|
|
enable_caches();
|
|
}
|
|
|
|
void dcache_disable(void)
|
|
{
|
|
disable_caches();
|
|
}
|
|
|
|
void icache_enable(void)
|
|
{
|
|
}
|
|
|
|
void icache_disable(void)
|
|
{
|
|
}
|
|
|
|
int icache_status(void)
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
#ifndef CONFIG_TPL_BUILD
|
|
const char *cpu_vendor_name(int vendor)
|
|
{
|
|
const char *name;
|
|
name = "<invalid cpu vendor>";
|
|
if (vendor < ARRAY_SIZE(x86_vendor_name) &&
|
|
x86_vendor_name[vendor])
|
|
name = x86_vendor_name[vendor];
|
|
|
|
return name;
|
|
}
|
|
#endif
|
|
|
|
char *cpu_get_name(char *name)
|
|
{
|
|
unsigned int *name_as_ints = (unsigned int *)name;
|
|
struct cpuid_result regs;
|
|
char *ptr;
|
|
int i;
|
|
|
|
/* This bit adds up to 48 bytes */
|
|
for (i = 0; i < 3; i++) {
|
|
regs = cpuid(0x80000002 + i);
|
|
name_as_ints[i * 4 + 0] = regs.eax;
|
|
name_as_ints[i * 4 + 1] = regs.ebx;
|
|
name_as_ints[i * 4 + 2] = regs.ecx;
|
|
name_as_ints[i * 4 + 3] = regs.edx;
|
|
}
|
|
name[CPU_MAX_NAME_LEN - 1] = '\0';
|
|
|
|
/* Skip leading spaces. */
|
|
ptr = name;
|
|
while (*ptr == ' ')
|
|
ptr++;
|
|
|
|
return ptr;
|
|
}
|
|
|
|
int default_print_cpuinfo(void)
|
|
{
|
|
printf("CPU: %s, vendor %s, device %xh\n",
|
|
cpu_has_64bit() ? "x86_64" : "x86",
|
|
cpu_vendor_name(gd->arch.x86_vendor), gd->arch.x86_device);
|
|
|
|
if (IS_ENABLED(CONFIG_HAVE_ACPI_RESUME)) {
|
|
debug("ACPI previous sleep state: %s\n",
|
|
acpi_ss_string(gd->arch.prev_sleep_state));
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
#if CONFIG_IS_ENABLED(SHOW_BOOT_PROGRESS)
|
|
void show_boot_progress(int val)
|
|
{
|
|
outb(val, POST_PORT);
|
|
}
|
|
#endif
|
|
|
|
#if !defined(CONFIG_SYS_COREBOOT) && !defined(CONFIG_EFI_STUB)
|
|
/*
|
|
* Implement a weak default function for boards that need to do some final init
|
|
* before the system is ready.
|
|
*/
|
|
__weak void board_final_init(void)
|
|
{
|
|
}
|
|
|
|
/*
|
|
* Implement a weak default function for boards that need to do some final
|
|
* processing before booting the OS.
|
|
*/
|
|
__weak void board_final_cleanup(void)
|
|
{
|
|
}
|
|
|
|
int last_stage_init(void)
|
|
{
|
|
struct acpi_fadt __maybe_unused *fadt;
|
|
int ret;
|
|
|
|
board_final_init();
|
|
|
|
if (IS_ENABLED(CONFIG_HAVE_ACPI_RESUME)) {
|
|
fadt = acpi_find_fadt();
|
|
|
|
if (fadt && gd->arch.prev_sleep_state == ACPI_S3)
|
|
acpi_resume(fadt);
|
|
}
|
|
|
|
ret = write_tables();
|
|
if (ret) {
|
|
log_err("Failed to write tables\n");
|
|
return log_msg_ret("table", ret);
|
|
}
|
|
|
|
if (IS_ENABLED(CONFIG_GENERATE_ACPI_TABLE)) {
|
|
fadt = acpi_find_fadt();
|
|
|
|
/* Don't touch ACPI hardware on HW reduced platforms */
|
|
if (fadt && !(fadt->flags & ACPI_FADT_HW_REDUCED_ACPI)) {
|
|
/*
|
|
* Other than waiting for OSPM to request us to switch
|
|
* to ACPI * mode, do it by ourselves, since SMI will
|
|
* not be triggered.
|
|
*/
|
|
enter_acpi_mode(fadt->pm1a_cnt_blk);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* TODO(sjg@chromium.org): Move this to bootm_announce_and_cleanup()
|
|
* once APL FSP-S at 0x200000 does not overlap with the bzimage at
|
|
* 0x100000.
|
|
*/
|
|
board_final_cleanup();
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
static int x86_init_cpus(void)
|
|
{
|
|
if (IS_ENABLED(CONFIG_SMP)) {
|
|
debug("Init additional CPUs\n");
|
|
x86_mp_init();
|
|
} else {
|
|
struct udevice *dev;
|
|
|
|
/*
|
|
* This causes the cpu-x86 driver to be probed.
|
|
* We don't check return value here as we want to allow boards
|
|
* which have not been converted to use cpu uclass driver to
|
|
* boot.
|
|
*/
|
|
uclass_first_device(UCLASS_CPU, &dev);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int cpu_init_r(void)
|
|
{
|
|
struct udevice *dev;
|
|
int ret;
|
|
|
|
if (!ll_boot_init()) {
|
|
uclass_first_device(UCLASS_PCI, &dev);
|
|
return 0;
|
|
}
|
|
|
|
ret = x86_init_cpus();
|
|
if (ret)
|
|
return ret;
|
|
|
|
/*
|
|
* Set up the northbridge, PCH and LPC if available. Note that these
|
|
* may have had some limited pre-relocation init if they were probed
|
|
* before relocation, but this is post relocation.
|
|
*/
|
|
uclass_first_device(UCLASS_NORTHBRIDGE, &dev);
|
|
uclass_first_device(UCLASS_PCH, &dev);
|
|
uclass_first_device(UCLASS_LPC, &dev);
|
|
|
|
/* Set up pin control if available */
|
|
ret = syscon_get_by_driver_data(X86_SYSCON_PINCONF, &dev);
|
|
debug("%s, pinctrl=%p, ret=%d\n", __func__, dev, ret);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#ifndef CONFIG_EFI_STUB
|
|
int reserve_arch(void)
|
|
{
|
|
struct udevice *itss;
|
|
int ret;
|
|
|
|
if (IS_ENABLED(CONFIG_ENABLE_MRC_CACHE))
|
|
mrccache_reserve();
|
|
|
|
if (IS_ENABLED(CONFIG_SEABIOS))
|
|
high_table_reserve();
|
|
|
|
if (IS_ENABLED(CONFIG_HAVE_ACPI_RESUME)) {
|
|
acpi_s3_reserve();
|
|
|
|
if (IS_ENABLED(CONFIG_HAVE_FSP)) {
|
|
/*
|
|
* Save stack address to CMOS so that at next S3 boot,
|
|
* we can use it as the stack address for fsp_continue()
|
|
*/
|
|
fsp_save_s3_stack();
|
|
}
|
|
}
|
|
ret = irq_first_device_type(X86_IRQT_ITSS, &itss);
|
|
if (!ret) {
|
|
/*
|
|
* Snapshot the current GPIO IRQ polarities. FSP-S is about to
|
|
* run and will set a default policy that doesn't honour boards'
|
|
* requirements
|
|
*/
|
|
irq_snapshot_polarities(itss);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
long detect_coreboot_table_at(ulong start, ulong size)
|
|
{
|
|
u32 *ptr, *end;
|
|
|
|
size /= 4;
|
|
for (ptr = (void *)start, end = ptr + size; ptr < end; ptr += 4) {
|
|
if (*ptr == 0x4f49424c) /* "LBIO" */
|
|
return (long)ptr;
|
|
}
|
|
|
|
return -ENOENT;
|
|
}
|
|
|
|
long locate_coreboot_table(void)
|
|
{
|
|
long addr;
|
|
|
|
/* We look for LBIO in the first 4K of RAM and again at 960KB */
|
|
addr = detect_coreboot_table_at(0x0, 0x1000);
|
|
if (addr < 0)
|
|
addr = detect_coreboot_table_at(0xf0000, 0x1000);
|
|
|
|
return addr;
|
|
}
|