Mirrors/u-boot
2
0
Fork 0
mirror of https://github.com/AsahiLinux/u-boot synced 2024-11-14 00:47:26 +00:00
Code Issues Projects Releases Packages Wiki Activity
u-boot/common/board_f.c
Simon Glass 3d6531803e bloblist: Support initing from multiple places 
Typically the bloblist is set up after the devicetree is present. This
makes sense because bloblist may use malloc() to allocate the space it
needs.

However sometimes the devicetree itself may be present in the bloblist.
In that case it is at a known location in memory so we can init the
bloblist very early, before devicetree.

Add a flag to indicate whether the bloblist has been inited. Add a
function to init it only if needed. Use that in the init sequence.

Signed-off-by: Simon Glass <sjg@chromium.org>
2023-10-06 14:38:13 -04:00

1038 lines
25 KiB
C
Raw Blame History

// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (c) 2011 The Chromium OS Authors.
* (C) Copyright 2002-2006
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* (C) Copyright 2002
* Sysgo Real-Time Solutions, GmbH <www.elinos.com>
* Marius Groeger <mgroeger@sysgo.de>
*/
#include <common.h>
#include <bloblist.h>
#include <bootstage.h>
#include <clock_legacy.h>
#include <console.h>
#include <cpu.h>
#include <cpu_func.h>
#include <cyclic.h>
#include <display_options.h>
#include <dm.h>
#include <env.h>
#include <env_internal.h>
#include <event.h>
#include <fdtdec.h>
#include <fs.h>
#include <hang.h>
#include <i2c.h>
#include <init.h>
#include <initcall.h>
#include <log.h>
#include <malloc.h>
#include <mapmem.h>
#include <os.h>
#include <post.h>
#include <relocate.h>
#include <serial.h>
#include <spl.h>
#include <status_led.h>
#include <sysreset.h>
#include <timer.h>
#include <trace.h>
#include <video.h>
#include <watchdog.h>
#include <asm/cache.h>
#include <asm/global_data.h>
#include <asm/io.h>
#include <asm/sections.h>
#include <dm/root.h>
#include <linux/errno.h>
#include <linux/log2.h>
DECLARE_GLOBAL_DATA_PTR;
/*
* TODO(sjg@chromium.org): IMO this code should be
* refactored to a single function, something like:
*
* void led_set_state(enum led_colour_t colour, int on);
*/
/************************************************************************
* Coloured LED functionality
************************************************************************
* May be supplied by boards if desired
*/
__weak void coloured_LED_init(void) {}
__weak void red_led_on(void) {}
__weak void red_led_off(void) {}
__weak void green_led_on(void) {}
__weak void green_led_off(void) {}
__weak void yellow_led_on(void) {}
__weak void yellow_led_off(void) {}
__weak void blue_led_on(void) {}
__weak void blue_led_off(void) {}
/*
* Why is gd allocated a register? Prior to reloc it might be better to
* just pass it around to each function in this file?
*
* After reloc one could argue that it is hardly used and doesn't need
* to be in a register. Or if it is it should perhaps hold pointers to all
* global data for all modules, so that post-reloc we can avoid the massive
* literal pool we get on ARM. Or perhaps just encourage each module to use
* a structure...
*/
#if defined(CONFIG_WATCHDOG) || defined(CONFIG_HW_WATCHDOG)
static int init_func_watchdog_init(void)
{
# if defined(CONFIG_HW_WATCHDOG) && \
(defined(CONFIG_M68K) || defined(CONFIG_MICROBLAZE) || \
defined(CONFIG_SH) || \
defined(CONFIG_DESIGNWARE_WATCHDOG) || \
defined(CONFIG_IMX_WATCHDOG))
hw_watchdog_init();
puts(" Watchdog enabled\n");
# endif
schedule();
return 0;
}
int init_func_watchdog_reset(void)
{
schedule();
return 0;
}
#endif /* CONFIG_WATCHDOG */
__weak void board_add_ram_info(int use_default)
{
/* please define platform specific board_add_ram_info() */
}
static int init_baud_rate(void)
{
gd->baudrate = env_get_ulong("baudrate", 10, CONFIG_BAUDRATE);
return 0;
}
static int display_text_info(void)
{
#if !defined(CONFIG_SANDBOX) && !defined(CONFIG_EFI_APP)
ulong bss_start, bss_end, text_base;
bss_start = (ulong)__bss_start;
bss_end = (ulong)__bss_end;
#ifdef CONFIG_TEXT_BASE
text_base = CONFIG_TEXT_BASE;
#else
text_base = CONFIG_SYS_MONITOR_BASE;
#endif
debug("U-Boot code: %08lX -> %08lX BSS: -> %08lX\n",
text_base, bss_start, bss_end);
#endif
return 0;
}
#ifdef CONFIG_SYSRESET
static int print_resetinfo(void)
{
struct udevice *dev;
char status[256];
bool status_printed = false;
int ret;
/*
* Not all boards have sysreset drivers available during early
* boot, so don't fail if one can't be found.
*/
for (ret = uclass_first_device_check(UCLASS_SYSRESET, &dev); dev;
ret = uclass_next_device_check(&dev)) {
if (ret) {
debug("%s: %s sysreset device (error: %d)\n",
__func__, dev->name, ret);
continue;
}
if (!sysreset_get_status(dev, status, sizeof(status))) {
printf("%s%s", status_printed ? " " : "", status);
status_printed = true;
}
}
if (status_printed)
printf("\n");
return 0;
}
#endif
#if defined(CONFIG_DISPLAY_CPUINFO) && CONFIG_IS_ENABLED(CPU)
static int print_cpuinfo(void)
{
struct udevice *dev;
char desc[512];
int ret;
dev = cpu_get_current_dev();
if (!dev) {
debug("%s: Could not get CPU device\n",
__func__);
return -ENODEV;
}
ret = cpu_get_desc(dev, desc, sizeof(desc));
if (ret) {
debug("%s: Could not get CPU description (err = %d)\n",
dev->name, ret);
return ret;
}
printf("CPU: %s\n", desc);
return 0;
}
#endif
static int announce_dram_init(void)
{
puts("DRAM: ");
return 0;
}
/*
* From input size calculate its nearest rounded unit scale (multiply of 2^10)
* and value in calculated unit scale multiplied by 10 (as fractional fixed
* point number with one decimal digit), which is human natural format,
* same what uses print_size() function for displaying. Mathematically it is:
* round_nearest(val * 2^scale) = size * 10; where: 10 <= val < 10240.
*
* For example for size=87654321 we calculate scale=20 and val=836 which means
* that input has natural human format 83.6 M (mega = 2^20).
*/
#define compute_size_scale_val(size, scale, val) do { \
scale = ilog2(size) / 10 * 10; \
val = (10 * size + ((1ULL << scale) >> 1)) >> scale; \
if (val == 10240) { val = 10; scale += 10; } \
} while (0)
/*
* Check if the sizes in their natural units written in decimal format with
* one fraction number are same.
*/
static int sizes_near(unsigned long long size1, unsigned long long size2)
{
unsigned int size1_scale, size1_val, size2_scale, size2_val;
compute_size_scale_val(size1, size1_scale, size1_val);
compute_size_scale_val(size2, size2_scale, size2_val);
return size1_scale == size2_scale && size1_val == size2_val;
}
static int show_dram_config(void)
{
unsigned long long size;
int i;
debug("\nRAM Configuration:\n");
for (i = size = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
size += gd->bd->bi_dram[i].size;
debug("Bank #%d: %llx ", i,
(unsigned long long)(gd->bd->bi_dram[i].start));
#ifdef DEBUG
print_size(gd->bd->bi_dram[i].size, "\n");
#endif
}
debug("\nDRAM: ");
print_size(gd->ram_size, "");
if (!sizes_near(gd->ram_size, size)) {
printf(" (effective ");
print_size(size, ")");
}
board_add_ram_info(0);
putc('\n');
return 0;
}
__weak int dram_init_banksize(void)
{
gd->bd->bi_dram[0].start = gd->ram_base;
gd->bd->bi_dram[0].size = get_effective_memsize();
return 0;
}
#if CONFIG_IS_ENABLED(SYS_I2C_LEGACY)
static int init_func_i2c(void)
{
puts("I2C: ");
i2c_init_all();
puts("ready\n");
return 0;
}
#endif
static int setup_mon_len(void)
{
#if defined(__ARM__) || defined(__MICROBLAZE__)
gd->mon_len = (ulong)__bss_end - (ulong)_start;
#elif defined(CONFIG_SANDBOX) && !defined(__riscv)
gd->mon_len = (ulong)_end - (ulong)_init;
#elif defined(CONFIG_SANDBOX)
/* gcc does not provide _init in crti.o on RISC-V */
gd->mon_len = 0;
#elif defined(CONFIG_EFI_APP)
gd->mon_len = (ulong)_end - (ulong)_init;
#elif defined(CONFIG_NIOS2) || defined(CONFIG_XTENSA)
gd->mon_len = CONFIG_SYS_MONITOR_LEN;
#elif defined(CONFIG_SH) || defined(CONFIG_RISCV)
gd->mon_len = (ulong)(__bss_end) - (ulong)(_start);
#elif defined(CONFIG_SYS_MONITOR_BASE)
/* TODO: use (ulong)__bss_end - (ulong)__text_start; ? */
gd->mon_len = (ulong)__bss_end - CONFIG_SYS_MONITOR_BASE;
#endif
return 0;
}
static int setup_spl_handoff(void)
{
#if CONFIG_IS_ENABLED(HANDOFF)
gd->spl_handoff = bloblist_find(BLOBLISTT_U_BOOT_SPL_HANDOFF,
sizeof(struct spl_handoff));
debug("Found SPL hand-off info %p\n", gd->spl_handoff);
#endif
return 0;
}
__weak int arch_cpu_init(void)
{
return 0;
}
__weak int mach_cpu_init(void)
{
return 0;
}
/* Get the top of usable RAM */
__weak phys_addr_t board_get_usable_ram_top(phys_size_t total_size)
{
#if defined(CFG_SYS_SDRAM_BASE) && CFG_SYS_SDRAM_BASE > 0
/*
* Detect whether we have so much RAM that it goes past the end of our
* 32-bit address space. If so, clip the usable RAM so it doesn't.
*/
if (gd->ram_top < CFG_SYS_SDRAM_BASE)
/*
* Will wrap back to top of 32-bit space when reservations
* are made.
*/
return 0;
#endif
return gd->ram_top;
}
__weak int arch_setup_dest_addr(void)
{
return 0;
}
static int setup_dest_addr(void)
{
debug("Monitor len: %08lX\n", gd->mon_len);
/*
* Ram is setup, size stored in gd !!
*/
debug("Ram size: %08llX\n", (unsigned long long)gd->ram_size);
#if CONFIG_VAL(SYS_MEM_TOP_HIDE)
/*
* Subtract specified amount of memory to hide so that it won't
* get "touched" at all by U-Boot. By fixing up gd->ram_size
* the Linux kernel should now get passed the now "corrected"
* memory size and won't touch it either. This should work
* for arch/ppc and arch/powerpc. Only Linux board ports in
* arch/powerpc with bootwrapper support, that recalculate the
* memory size from the SDRAM controller setup will have to
* get fixed.
*/
gd->ram_size -= CONFIG_SYS_MEM_TOP_HIDE;
#endif
#ifdef CFG_SYS_SDRAM_BASE
gd->ram_base = CFG_SYS_SDRAM_BASE;
#endif
gd->ram_top = gd->ram_base + get_effective_memsize();
gd->ram_top = board_get_usable_ram_top(gd->mon_len);
gd->relocaddr = gd->ram_top;
debug("Ram top: %08llX\n", (unsigned long long)gd->ram_top);
return arch_setup_dest_addr();
}
#ifdef CFG_PRAM
/* reserve protected RAM */
static int reserve_pram(void)
{
ulong reg;
reg = env_get_ulong("pram", 10, CFG_PRAM);
gd->relocaddr -= (reg << 10); /* size is in kB */
debug("Reserving %ldk for protected RAM at %08lx\n", reg,
gd->relocaddr);
return 0;
}
#endif /* CFG_PRAM */
/* Round memory pointer down to next 4 kB limit */
static int reserve_round_4k(void)
{
gd->relocaddr &= ~(4096 - 1);
return 0;
}
__weak int arch_reserve_mmu(void)
{
return 0;
}
static int reserve_video(void)
{
if (IS_ENABLED(CONFIG_SPL_VIDEO_HANDOFF) && spl_phase() > PHASE_SPL) {
struct video_handoff *ho;
ho = bloblist_find(BLOBLISTT_U_BOOT_VIDEO, sizeof(*ho));
if (!ho)
return log_msg_ret("blf", -ENOENT);
video_reserve_from_bloblist(ho);
gd->relocaddr = ho->fb;
} else if (CONFIG_IS_ENABLED(VIDEO)) {
ulong addr;
int ret;
addr = gd->relocaddr;
ret = video_reserve(&addr);
if (ret)
return ret;
debug("Reserving %luk for video at: %08lx\n",
((unsigned long)gd->relocaddr - addr) >> 10, addr);
gd->relocaddr = addr;
}
return 0;
}
static int reserve_trace(void)
{
#ifdef CONFIG_TRACE
gd->relocaddr -= CONFIG_TRACE_BUFFER_SIZE;
gd->trace_buff = map_sysmem(gd->relocaddr, CONFIG_TRACE_BUFFER_SIZE);
debug("Reserving %luk for trace data at: %08lx\n",
(unsigned long)CONFIG_TRACE_BUFFER_SIZE >> 10, gd->relocaddr);
#endif
return 0;
}
static int reserve_uboot(void)
{
if (!(gd->flags & GD_FLG_SKIP_RELOC)) {
/*
* reserve memory for U-Boot code, data & bss
* round down to next 4 kB limit
*/
gd->relocaddr -= gd->mon_len;
gd->relocaddr &= ~(4096 - 1);
#if defined(CONFIG_E500) || defined(CONFIG_MIPS)
/* round down to next 64 kB limit so that IVPR stays aligned */
gd->relocaddr &= ~(65536 - 1);
#endif
debug("Reserving %ldk for U-Boot at: %08lx\n",
gd->mon_len >> 10, gd->relocaddr);
}
gd->start_addr_sp = gd->relocaddr;
return 0;
}
/*
* reserve after start_addr_sp the requested size and make the stack pointer
* 16-byte aligned, this alignment is needed for cast on the reserved memory
* ref = x86_64 ABI: https://reviews.llvm.org/D30049: 16 bytes
* = ARMv8 Instruction Set Overview: quad word, 16 bytes
*/
static unsigned long reserve_stack_aligned(size_t size)
{
return ALIGN_DOWN(gd->start_addr_sp - size, 16);
}
#ifdef CONFIG_SYS_NONCACHED_MEMORY
static int reserve_noncached(void)
{
/*
* The value of gd->start_addr_sp must match the value of malloc_start
* calculated in board_r.c:initr_malloc(), which is passed to
* dlmalloc.c:mem_malloc_init() and then used by
* cache.c:noncached_init()
*
* These calculations must match the code in cache.c:noncached_init()
*/
gd->start_addr_sp = ALIGN(gd->start_addr_sp, MMU_SECTION_SIZE) -
MMU_SECTION_SIZE;
gd->start_addr_sp -= ALIGN(CONFIG_SYS_NONCACHED_MEMORY,
MMU_SECTION_SIZE);
debug("Reserving %dM for noncached_alloc() at: %08lx\n",
CONFIG_SYS_NONCACHED_MEMORY >> 20, gd->start_addr_sp);
return 0;
}
#endif
/* reserve memory for malloc() area */
static int reserve_malloc(void)
{
gd->start_addr_sp = reserve_stack_aligned(TOTAL_MALLOC_LEN);
debug("Reserving %dk for malloc() at: %08lx\n",
TOTAL_MALLOC_LEN >> 10, gd->start_addr_sp);
#ifdef CONFIG_SYS_NONCACHED_MEMORY
reserve_noncached();
#endif
return 0;
}
/* (permanently) allocate a Board Info struct */
static int reserve_board(void)
{
if (!gd->bd) {
gd->start_addr_sp = reserve_stack_aligned(sizeof(struct bd_info));
gd->bd = (struct bd_info *)map_sysmem(gd->start_addr_sp,
sizeof(struct bd_info));
memset(gd->bd, '\0', sizeof(struct bd_info));
debug("Reserving %zu Bytes for Board Info at: %08lx\n",
sizeof(struct bd_info), gd->start_addr_sp);
}
return 0;
}
static int reserve_global_data(void)
{
gd->start_addr_sp = reserve_stack_aligned(sizeof(gd_t));
gd->new_gd = (gd_t *)map_sysmem(gd->start_addr_sp, sizeof(gd_t));
debug("Reserving %zu Bytes for Global Data at: %08lx\n",
sizeof(gd_t), gd->start_addr_sp);
return 0;
}
static int reserve_fdt(void)
{
if (!IS_ENABLED(CONFIG_OF_EMBED)) {
/*
* If the device tree is sitting immediately above our image
* then we must relocate it. If it is embedded in the data
* section, then it will be relocated with other data.
*/
if (gd->fdt_blob) {
gd->fdt_size = ALIGN(fdt_totalsize(gd->fdt_blob), 32);
gd->start_addr_sp = reserve_stack_aligned(gd->fdt_size);
gd->new_fdt = map_sysmem(gd->start_addr_sp, gd->fdt_size);
debug("Reserving %lu Bytes for FDT at: %08lx\n",
gd->fdt_size, gd->start_addr_sp);
}
}
return 0;
}
static int reserve_bootstage(void)
{
#ifdef CONFIG_BOOTSTAGE
int size = bootstage_get_size();
gd->start_addr_sp = reserve_stack_aligned(size);
gd->new_bootstage = map_sysmem(gd->start_addr_sp, size);
debug("Reserving %#x Bytes for bootstage at: %08lx\n", size,
gd->start_addr_sp);
#endif
return 0;
}
__weak int arch_reserve_stacks(void)
{
return 0;
}
static int reserve_stacks(void)
{
/* make stack pointer 16-byte aligned */
gd->start_addr_sp = reserve_stack_aligned(16);
/*
* let the architecture-specific code tailor gd->start_addr_sp and
* gd->irq_sp
*/
return arch_reserve_stacks();
}
static int reserve_bloblist(void)
{
#ifdef CONFIG_BLOBLIST
/* Align to a 4KB boundary for easier reading of addresses */
gd->start_addr_sp = ALIGN_DOWN(gd->start_addr_sp -
CONFIG_BLOBLIST_SIZE_RELOC, 0x1000);
gd->new_bloblist = map_sysmem(gd->start_addr_sp,
CONFIG_BLOBLIST_SIZE_RELOC);
#endif
return 0;
}
static int display_new_sp(void)
{
debug("New Stack Pointer is: %08lx\n", gd->start_addr_sp);
return 0;
}
__weak int arch_setup_bdinfo(void)
{
return 0;
}
int setup_bdinfo(void)
{
struct bd_info *bd = gd->bd;
if (IS_ENABLED(CONFIG_SYS_HAS_SRAM)) {
bd->bi_sramstart = CONFIG_SYS_SRAM_BASE; /* start of SRAM */
bd->bi_sramsize = CONFIG_SYS_SRAM_SIZE; /* size of SRAM */
}
return arch_setup_bdinfo();
}
#ifdef CONFIG_POST
static int init_post(void)
{
post_bootmode_init();
post_run(NULL, POST_ROM | post_bootmode_get(0));
return 0;
}
#endif
static int reloc_fdt(void)
{
if (!IS_ENABLED(CONFIG_OF_EMBED)) {
if (gd->new_fdt) {
memcpy(gd->new_fdt, gd->fdt_blob,
fdt_totalsize(gd->fdt_blob));
gd->fdt_blob = gd->new_fdt;
}
}
return 0;
}
static int reloc_bootstage(void)
{
#ifdef CONFIG_BOOTSTAGE
if (gd->flags & GD_FLG_SKIP_RELOC)
return 0;
if (gd->new_bootstage) {
int size = bootstage_get_size();
debug("Copying bootstage from %p to %p, size %x\n",
gd->bootstage, gd->new_bootstage, size);
memcpy(gd->new_bootstage, gd->bootstage, size);
gd->bootstage = gd->new_bootstage;
bootstage_relocate();
}
#endif
return 0;
}
static int reloc_bloblist(void)
{
#ifdef CONFIG_BLOBLIST
/*
* Relocate only if we are supposed to send it
*/
if ((gd->flags & GD_FLG_SKIP_RELOC) &&
CONFIG_BLOBLIST_SIZE == CONFIG_BLOBLIST_SIZE_RELOC) {
debug("Not relocating bloblist\n");
return 0;
}
if (gd->new_bloblist) {
int size = CONFIG_BLOBLIST_SIZE;
debug("Copying bloblist from %p to %p, size %x\n",
gd->bloblist, gd->new_bloblist, size);
bloblist_reloc(gd->new_bloblist, CONFIG_BLOBLIST_SIZE_RELOC,
gd->bloblist, size);
gd->bloblist = gd->new_bloblist;
}
#endif
return 0;
}
static int setup_reloc(void)
{
if (!(gd->flags & GD_FLG_SKIP_RELOC)) {
#ifdef CONFIG_TEXT_BASE
#ifdef ARM
gd->reloc_off = gd->relocaddr - (unsigned long)__image_copy_start;
#elif defined(CONFIG_MICROBLAZE)
gd->reloc_off = gd->relocaddr - (u32)_start;
#elif defined(CONFIG_M68K)
/*
* On all ColdFire arch cpu, monitor code starts always
* just after the default vector table location, so at 0x400
*/
gd->reloc_off = gd->relocaddr - (CONFIG_TEXT_BASE + 0x400);
#elif !defined(CONFIG_SANDBOX)
gd->reloc_off = gd->relocaddr - CONFIG_TEXT_BASE;
#endif
#endif
}
memcpy(gd->new_gd, (char *)gd, sizeof(gd_t));
if (gd->flags & GD_FLG_SKIP_RELOC) {
debug("Skipping relocation due to flag\n");
} else {
debug("Relocation Offset is: %08lx\n", gd->reloc_off);
debug("Relocating to %08lx, new gd at %08lx, sp at %08lx\n",
gd->relocaddr, (ulong)map_to_sysmem(gd->new_gd),
gd->start_addr_sp);
}
return 0;
}
#ifdef CONFIG_OF_BOARD_FIXUP
static int fix_fdt(void)
{
return board_fix_fdt((void *)gd->fdt_blob);
}
#endif
/* ARM calls relocate_code from its crt0.S */
#if !defined(CONFIG_ARM) && !defined(CONFIG_SANDBOX)
static int jump_to_copy(void)
{
if (gd->flags & GD_FLG_SKIP_RELOC)
return 0;
/*
* x86 is special, but in a nice way. It uses a trampoline which
* enables the dcache if possible.
*
* For now, other archs use relocate_code(), which is implemented
* similarly for all archs. When we do generic relocation, hopefully
* we can make all archs enable the dcache prior to relocation.
*/
#if defined(CONFIG_X86) || defined(CONFIG_ARC)
/*
* SDRAM and console are now initialised. The final stack can now
* be setup in SDRAM. Code execution will continue in Flash, but
* with the stack in SDRAM and Global Data in temporary memory
* (CPU cache)
*/
arch_setup_gd(gd->new_gd);
# if CONFIG_IS_ENABLED(X86_64)
board_init_f_r_trampoline64(gd->new_gd, gd->start_addr_sp);
# else
board_init_f_r_trampoline(gd->start_addr_sp);
# endif
#else
relocate_code(gd->start_addr_sp, gd->new_gd, gd->relocaddr);
#endif
return 0;
}
#endif
/* Record the board_init_f() bootstage (after arch_cpu_init()) */
static int initf_bootstage(void)
{
bool from_spl = IS_ENABLED(CONFIG_SPL_BOOTSTAGE) &&
IS_ENABLED(CONFIG_BOOTSTAGE_STASH);
int ret;
ret = bootstage_init(!from_spl);
if (ret)
return ret;
if (from_spl) {
const void *stash = map_sysmem(CONFIG_BOOTSTAGE_STASH_ADDR,
CONFIG_BOOTSTAGE_STASH_SIZE);
ret = bootstage_unstash(stash, CONFIG_BOOTSTAGE_STASH_SIZE);
if (ret && ret != -ENOENT) {
debug("Failed to unstash bootstage: err=%d\n", ret);
return ret;
}
}
bootstage_mark_name(BOOTSTAGE_ID_START_UBOOT_F, "board_init_f");
return 0;
}
static int initf_dm(void)
{
#if defined(CONFIG_DM) && CONFIG_IS_ENABLED(SYS_MALLOC_F)
int ret;
bootstage_start(BOOTSTAGE_ID_ACCUM_DM_F, "dm_f");
ret = dm_init_and_scan(true);
bootstage_accum(BOOTSTAGE_ID_ACCUM_DM_F);
if (ret)
return ret;
if (IS_ENABLED(CONFIG_TIMER_EARLY)) {
ret = dm_timer_init();
if (ret)
return ret;
}
#endif
return 0;
}
/* Architecture-specific memory reservation */
__weak int reserve_arch(void)
{
return 0;
}
__weak int checkcpu(void)
{
return 0;
}
__weak int clear_bss(void)
{
return 0;
}
static const init_fnc_t init_sequence_f[] = {
setup_mon_len,
#ifdef CONFIG_OF_CONTROL
fdtdec_setup,
#endif
#ifdef CONFIG_TRACE_EARLY
trace_early_init,
#endif
initf_malloc,
log_init,
initf_bootstage, /* uses its own timer, so does not need DM */
event_init,
bloblist_maybe_init,
setup_spl_handoff,
#if defined(CONFIG_CONSOLE_RECORD_INIT_F)
console_record_init,
#endif
INITCALL_EVENT(EVT_FSP_INIT_F),
arch_cpu_init, /* basic arch cpu dependent setup */
mach_cpu_init, /* SoC/machine dependent CPU setup */
initf_dm,
#if defined(CONFIG_BOARD_EARLY_INIT_F)
board_early_init_f,
#endif
#if defined(CONFIG_PPC) || defined(CONFIG_SYS_FSL_CLK) || defined(CONFIG_M68K)
/* get CPU and bus clocks according to the environment variable */
get_clocks, /* get CPU and bus clocks (etc.) */
#endif
#if !defined(CONFIG_M68K) || (defined(CONFIG_M68K) && !defined(CONFIG_MCFTMR))
timer_init, /* initialize timer */
#endif
#if defined(CONFIG_BOARD_POSTCLK_INIT)
board_postclk_init,
#endif
env_init, /* initialize environment */
init_baud_rate, /* initialze baudrate settings */
serial_init, /* serial communications setup */
console_init_f, /* stage 1 init of console */
display_options, /* say that we are here */
display_text_info, /* show debugging info if required */
checkcpu,
#if defined(CONFIG_SYSRESET)
print_resetinfo,
#endif
#if defined(CONFIG_DISPLAY_CPUINFO)
print_cpuinfo, /* display cpu info (and speed) */
#endif
#if defined(CONFIG_DTB_RESELECT)
embedded_dtb_select,
#endif
#if defined(CONFIG_DISPLAY_BOARDINFO)
show_board_info,
#endif
INIT_FUNC_WATCHDOG_INIT
INITCALL_EVENT(EVT_MISC_INIT_F),
INIT_FUNC_WATCHDOG_RESET
#if CONFIG_IS_ENABLED(SYS_I2C_LEGACY)
init_func_i2c,
#endif
announce_dram_init,
dram_init, /* configure available RAM banks */
#ifdef CONFIG_POST
post_init_f,
#endif
INIT_FUNC_WATCHDOG_RESET
#if defined(CFG_SYS_DRAM_TEST)
testdram,
#endif /* CFG_SYS_DRAM_TEST */
INIT_FUNC_WATCHDOG_RESET
#ifdef CONFIG_POST
init_post,
#endif
INIT_FUNC_WATCHDOG_RESET
/*
* Now that we have DRAM mapped and working, we can
* relocate the code and continue running from DRAM.
*
* Reserve memory at end of RAM for (top down in that order):
* - area that won't get touched by U-Boot and Linux (optional)
* - kernel log buffer
* - protected RAM
* - LCD framebuffer
* - monitor code
* - board info struct
*/
setup_dest_addr,
#ifdef CONFIG_OF_BOARD_FIXUP
fix_fdt,
#endif
#ifdef CFG_PRAM
reserve_pram,
#endif
reserve_round_4k,
arch_reserve_mmu,
reserve_video,
reserve_trace,
reserve_uboot,
reserve_malloc,
reserve_board,
reserve_global_data,
reserve_fdt,
reserve_bootstage,
reserve_bloblist,
reserve_arch,
reserve_stacks,
dram_init_banksize,
show_dram_config,
INIT_FUNC_WATCHDOG_RESET
setup_bdinfo,
display_new_sp,
INIT_FUNC_WATCHDOG_RESET
reloc_fdt,
reloc_bootstage,
reloc_bloblist,
setup_reloc,
#if defined(CONFIG_X86) || defined(CONFIG_ARC)
copy_uboot_to_ram,
do_elf_reloc_fixups,
#endif
clear_bss,
/*
* Deregister all cyclic functions before relocation, so that
* gd->cyclic_list does not contain any references to pre-relocation
* devices. Drivers will register their cyclic functions anew when the
* devices are probed again.
*
* This should happen as late as possible so that the window where a
* watchdog device is not serviced is as small as possible.
*/
cyclic_unregister_all,
#if !defined(CONFIG_ARM) && !defined(CONFIG_SANDBOX)
jump_to_copy,
#endif
NULL,
};
void board_init_f(ulong boot_flags)
{
gd->flags = boot_flags;
gd->have_console = 0;
if (initcall_run_list(init_sequence_f))
hang();
#if !defined(CONFIG_ARM) && !defined(CONFIG_SANDBOX) && \
!defined(CONFIG_EFI_APP) && !CONFIG_IS_ENABLED(X86_64) && \
!defined(CONFIG_ARC)
/* NOTREACHED - jump_to_copy() does not return */
hang();
#endif
}
#if defined(CONFIG_X86) || defined(CONFIG_ARC)
/*
* For now this code is only used on x86.
*
* init_sequence_f_r is the list of init functions which are run when
* U-Boot is executing from Flash with a semi-limited 'C' environment.
* The following limitations must be considered when implementing an
* '_f_r' function:
* - 'static' variables are read-only
* - Global Data (gd->xxx) is read/write
*
* The '_f_r' sequence must, as a minimum, copy U-Boot to RAM (if
* supported). It _should_, if possible, copy global data to RAM and
* initialise the CPU caches (to speed up the relocation process)
*
* NOTE: At present only x86 uses this route, but it is intended that
* all archs will move to this when generic relocation is implemented.
*/
static const init_fnc_t init_sequence_f_r[] = {
#if !CONFIG_IS_ENABLED(X86_64)
init_cache_f_r,
#endif
NULL,
};
void board_init_f_r(void)
{
if (initcall_run_list(init_sequence_f_r))
hang();
/*
* The pre-relocation drivers may be using memory that has now gone
* away. Mark serial as unavailable - this will fall back to the debug
* UART if available.
*
* Do the same with log drivers since the memory may not be available.
*/
gd->flags &= ~(GD_FLG_SERIAL_READY | GD_FLG_LOG_READY);
#ifdef CONFIG_TIMER
gd->timer = NULL;
#endif
/*
* U-Boot has been copied into SDRAM, the BSS has been cleared etc.
* Transfer execution from Flash to RAM by calculating the address
* of the in-RAM copy of board_init_r() and calling it
*/
(board_init_r + gd->reloc_off)((gd_t *)gd, gd->relocaddr);
/* NOTREACHED - board_init_r() does not return */
hang();
}
#endif /* CONFIG_X86 */
Reference in a new issue View git blame Copy permalink