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// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2016 Google, Inc
*/
#define LOG_CATEGORY LOGC_BOOT
#include <common.h>
#include <cpu_func.h>
#include <debug_uart.h>
#include <dm.h>
#include <hang.h>
#include <image.h>
#include <init.h>
#include <irq_func.h>
#include <log.h>
#include <malloc.h>
#include <spl.h>
#include <syscon.h>
#include <vesa.h>
#include <asm/cpu.h>
#include <asm/cpu_common.h>
#include <asm/fsp2/fsp_api.h>
#include <asm/global_data.h>
#include <asm/mp.h>
#include <asm/mrccache.h>
#include <asm/mtrr.h>
#include <asm/pci.h>
#include <asm/processor.h>
#include <asm/spl.h>
#include <asm-generic/sections.h>
DECLARE_GLOBAL_DATA_PTR;
__weak int fsp_setup_pinctrl(void *ctx, struct event *event)
{
return 0;
}
#ifdef CONFIG_TPL
static int set_max_freq(void)
{
if (cpu_get_burst_mode_state() == BURST_MODE_UNAVAILABLE) {
/*
* Burst Mode has been factory-configured as disabled and is not
* available in this physical processor package
*/
debug("Burst Mode is factory-disabled\n");
return -ENOENT;
}
/* Enable burst mode */
cpu_set_burst_mode(true);
/* Enable speed step */
cpu_set_eist(true);
/* Set P-State ratio */
cpu_set_p_state_to_turbo_ratio();
return 0;
}
#endif
static int x86_spl_init(void)
{
struct udevice *dev;
#ifndef CONFIG_TPL
/*
* TODO(sjg@chromium.org): We use this area of RAM for the stack
* and global_data in SPL. Once U-Boot starts up and releocates it
* is not needed. We could make this a CONFIG option or perhaps
* place it immediately below CONFIG_TEXT_BASE.
*/
__maybe_unused char *ptr = (char *)0x110000;
#else
struct udevice *punit;
#endif
int ret;
log_debug("x86 spl starting\n");
if (IS_ENABLED(TPL))
ret = x86_cpu_reinit_f();
else
ret = x86_cpu_init_f();
ret = spl_init();
if (ret) {
log_debug("spl_init() failed (err=%d)\n", ret);
return ret;
}
ret = arch_cpu_init();
if (ret) {
log_debug("arch_cpu_init() failed (err=%d)\n", ret);
return ret;
}
#ifndef CONFIG_TPL
ret = fsp_setup_pinctrl(NULL, NULL);
if (ret) {
log_debug("fsp_setup_pinctrl() failed (err=%d)\n", ret);
return ret;
}
#endif
/*
* spl_board_init() below sets up the console if enabled. If it isn't,
* do it here. We cannot call this twice since it results in a double
* banner and CI tests fail.
*/
if (!IS_ENABLED(CONFIG_SPL_BOARD_INIT))
preloader_console_init();
#if !defined(CONFIG_TPL) && !CONFIG_IS_ENABLED(CPU)
ret = print_cpuinfo();
if (ret) {
log_debug("print_cpuinfo() failed (err=%d)\n", ret);
return ret;
}
#endif
/* probe the LPC so we get the GPIO_BASE set up correctly */
ret = uclass_first_device_err(UCLASS_LPC, &dev);
if (ret && ret != -ENODEV) {
log_debug("lpc probe failed\n");
return ret;
}
ret = dram_init();
if (ret) {
log_debug("dram_init() failed (err=%d)\n", ret);
return ret;
}
log_debug("mrc\n");
if (IS_ENABLED(CONFIG_ENABLE_MRC_CACHE)) {
ret = mrccache_spl_save();
if (ret)
log_debug("Failed to write to mrccache (err=%d)\n",
ret);
}
#ifndef CONFIG_SYS_COREBOOT
debug("BSS clear from %lx to %lx len %lx\n", (ulong)&__bss_start,
(ulong)&__bss_end, (ulong)&__bss_end - (ulong)&__bss_start);
memset(&__bss_start, 0, (ulong)&__bss_end - (ulong)&__bss_start);
# ifndef CONFIG_TPL
/* TODO(sjg@chromium.org): Consider calling cpu_init_r() here */
ret = interrupt_init();
if (ret) {
debug("%s: interrupt_init() failed\n", __func__);
return ret;
}
/*
* The stack grows down from ptr. Put the global data at ptr. This
* will only be used for SPL. Once SPL loads U-Boot proper it will
* set up its own stack.
*/
gd->new_gd = (struct global_data *)ptr;
memcpy(gd->new_gd, gd, sizeof(*gd));
log_debug("logging\n");
/*
* Make sure logging is disabled when we switch, since the log system
* list head will move
*/
gd->new_gd->flags &= ~GD_FLG_LOG_READY;
arch_setup_gd(gd->new_gd);
gd->start_addr_sp = (ulong)ptr;
/* start up logging again, with the new list-head location */
ret = log_init();
if (ret) {
log_debug("Log setup failed (err=%d)\n", ret);
return ret;
}
if (_LOG_DEBUG) {
ret = mtrr_list(mtrr_get_var_count(), MP_SELECT_BSP);
if (ret)
printf("mtrr_list failed\n");
}
/* Cache the SPI flash. Otherwise copying the code to RAM takes ages */
ret = mtrr_add_request(MTRR_TYPE_WRBACK,
(1ULL << 32) - CONFIG_XIP_ROM_SIZE,
CONFIG_XIP_ROM_SIZE);
if (ret) {
debug("%s: SPI cache setup failed (err=%d)\n", __func__, ret);
return ret;
}
# else
ret = syscon_get_by_driver_data(X86_SYSCON_PUNIT, &punit);
if (ret)
debug("Could not find PUNIT (err=%d)\n", ret);
ret = set_max_freq();
if (ret)
debug("Failed to set CPU frequency (err=%d)\n", ret);
# endif
#endif
log_debug("done\n");
return 0;
}
void board_init_f(ulong flags)
{
int ret;
ret = x86_spl_init();
if (ret) {
printf("x86_spl_init: error %d\n", ret);
hang();
}
#if IS_ENABLED(CONFIG_TPL) || IS_ENABLED(CONFIG_SYS_COREBOOT)
gd->bd = malloc(sizeof(*gd->bd));
if (!gd->bd) {
printf("Out of memory for bd_info size %x\n", sizeof(*gd->bd));
hang();
}
board_init_r(gd, 0);
#else
/* Uninit CAR and jump to board_init_f_r() */
board_init_f_r_trampoline(gd->start_addr_sp);
#endif
}
void board_init_f_r(void)
{
mtrr_commit(false);
init_cache();
gd->flags &= ~GD_FLG_SERIAL_READY;
debug("cache status %d\n", dcache_status());
board_init_r(gd, 0);
}
u32 spl_boot_device(void)
{
return BOOT_DEVICE_SPI_MMAP;
}
int spl_start_uboot(void)
{
return 0;
}
void spl_board_announce_boot_device(void)
{
printf("SPI flash");
}
static int spl_board_load_image(struct spl_image_info *spl_image,
struct spl_boot_device *bootdev)
{
spl_image->size = CONFIG_SYS_MONITOR_LEN;
spl_image->entry_point = CONFIG_TEXT_BASE;
spl_image->load_addr = CONFIG_TEXT_BASE;
spl_image->os = IH_OS_U_BOOT;
spl_image->name = "U-Boot";
if (!IS_ENABLED(CONFIG_SYS_COREBOOT)) {
/* Copy U-Boot from ROM */
memcpy((void *)spl_image->load_addr,
(void *)spl_get_image_pos(), spl_get_image_size());
}
debug("Loading to %lx\n", spl_image->load_addr);
return 0;
}
SPL_LOAD_IMAGE_METHOD("SPI", 5, BOOT_DEVICE_SPI_MMAP, spl_board_load_image);
int spl_spi_load_image(void)
{
return -EPERM;
}
#ifdef CONFIG_X86_RUN_64BIT
void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image)
{
int ret;
printf("Jumping to 64-bit U-Boot: Note many features are missing\n");
ret = cpu_jump_to_64bit_uboot(spl_image->entry_point);
debug("ret=%d\n", ret);
hang();
}
#endif
void spl_board_init(void)
{
#ifndef CONFIG_TPL
preloader_console_init();
#endif
if (CONFIG_IS_ENABLED(VIDEO)) {
struct udevice *dev;
/* Set up PCI video in SPL if required */
uclass_first_device_err(UCLASS_PCI, &dev);
uclass_first_device_err(UCLASS_VIDEO, &dev);
}
}
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