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u-boot/common/board_r.c
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style 
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00

882 lines
18 KiB
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// 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 <api.h>
/* TODO: can we just include all these headers whether needed or not? */
#if defined(CONFIG_CMD_BEDBUG)
#include <bedbug/type.h>
#endif
#include <command.h>
#include <console.h>
#include <dm.h>
#include <environment.h>
#include <fdtdec.h>
#include <ide.h>
#include <initcall.h>
#if defined(CONFIG_CMD_KGDB)
#include <kgdb.h>
#endif
#include <malloc.h>
#include <mapmem.h>
#ifdef CONFIG_BITBANGMII
#include <miiphy.h>
#endif
#include <mmc.h>
#include <nand.h>
#include <of_live.h>
#include <onenand_uboot.h>
#include <scsi.h>
#include <serial.h>
#include <spi.h>
#include <stdio_dev.h>
#include <timer.h>
#include <trace.h>
#include <watchdog.h>
#ifdef CONFIG_ADDR_MAP
#include <asm/mmu.h>
#endif
#include <asm/sections.h>
#include <dm/root.h>
#include <linux/compiler.h>
#include <linux/err.h>
#include <efi_loader.h>
DECLARE_GLOBAL_DATA_PTR;
ulong monitor_flash_len;
__weak int board_flash_wp_on(void)
{
/*
* Most flashes can't be detected when write protection is enabled,
* so provide a way to let U-Boot gracefully ignore write protected
* devices.
*/
return 0;
}
__weak void cpu_secondary_init_r(void)
{
}
static int initr_secondary_cpu(void)
{
/*
* after non-volatile devices & environment is setup and cpu code have
* another round to deal with any initialization that might require
* full access to the environment or loading of some image (firmware)
* from a non-volatile device
*/
/* TODO: maybe define this for all archs? */
cpu_secondary_init_r();
return 0;
}
static int initr_trace(void)
{
#ifdef CONFIG_TRACE
trace_init(gd->trace_buff, CONFIG_TRACE_BUFFER_SIZE);
#endif
return 0;
}
static int initr_reloc(void)
{
/* tell others: relocation done */
gd->flags |= GD_FLG_RELOC | GD_FLG_FULL_MALLOC_INIT;
return 0;
}
#ifdef CONFIG_ARM
/*
* Some of these functions are needed purely because the functions they
* call return void. If we change them to return 0, these stubs can go away.
*/
static int initr_caches(void)
{
/* Enable caches */
enable_caches();
return 0;
}
#endif
__weak int fixup_cpu(void)
{
return 0;
}
static int initr_reloc_global_data(void)
{
#ifdef __ARM__
monitor_flash_len = _end - __image_copy_start;
#elif defined(CONFIG_NDS32) || defined(CONFIG_RISCV)
monitor_flash_len = (ulong)&_end - (ulong)&_start;
#elif !defined(CONFIG_SANDBOX) && !defined(CONFIG_NIOS2)
monitor_flash_len = (ulong)&__init_end - gd->relocaddr;
#endif
#if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)
/*
* The gd->cpu pointer is set to an address in flash before relocation.
* We need to update it to point to the same CPU entry in RAM.
* TODO: why not just add gd->reloc_ofs?
*/
gd->arch.cpu += gd->relocaddr - CONFIG_SYS_MONITOR_BASE;
/*
* If we didn't know the cpu mask & # cores, we can save them of
* now rather than 'computing' them constantly
*/
fixup_cpu();
#endif
#ifdef CONFIG_SYS_EXTRA_ENV_RELOC
/*
* Some systems need to relocate the env_addr pointer early because the
* location it points to will get invalidated before env_relocate is
* called. One example is on systems that might use a L2 or L3 cache
* in SRAM mode and initialize that cache from SRAM mode back to being
* a cache in cpu_init_r.
*/
gd->env_addr += gd->relocaddr - CONFIG_SYS_MONITOR_BASE;
#endif
#ifdef CONFIG_OF_EMBED
/*
* The fdt_blob needs to be moved to new relocation address
* incase of FDT blob is embedded with in image
*/
gd->fdt_blob += gd->reloc_off;
#endif
#ifdef CONFIG_EFI_LOADER
efi_runtime_relocate(gd->relocaddr, NULL);
#endif
return 0;
}
static int initr_serial(void)
{
serial_initialize();
return 0;
}
#if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_MIPS)
static int initr_trap(void)
{
/*
* Setup trap handlers
*/
#if defined(CONFIG_PPC)
trap_init(gd->relocaddr);
#else
trap_init(CONFIG_SYS_SDRAM_BASE);
#endif
return 0;
}
#endif
#ifdef CONFIG_ADDR_MAP
static int initr_addr_map(void)
{
init_addr_map();
return 0;
}
#endif
#ifdef CONFIG_POST
static int initr_post_backlog(void)
{
post_output_backlog();
return 0;
}
#endif
#if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500)
static int initr_unlock_ram_in_cache(void)
{
unlock_ram_in_cache(); /* it's time to unlock D-cache in e500 */
return 0;
}
#endif
#ifdef CONFIG_PCI
static int initr_pci(void)
{
#ifndef CONFIG_DM_PCI
pci_init();
#endif
return 0;
}
#endif
static int initr_barrier(void)
{
#ifdef CONFIG_PPC
/* TODO: Can we not use dmb() macros for this? */
asm("sync ; isync");
#endif
return 0;
}
static int initr_malloc(void)
{
ulong malloc_start;
#if CONFIG_VAL(SYS_MALLOC_F_LEN)
debug("Pre-reloc malloc() used %#lx bytes (%ld KB)\n", gd->malloc_ptr,
gd->malloc_ptr / 1024);
#endif
/* The malloc area is immediately below the monitor copy in DRAM */
malloc_start = gd->relocaddr - TOTAL_MALLOC_LEN;
mem_malloc_init((ulong)map_sysmem(malloc_start, TOTAL_MALLOC_LEN),
TOTAL_MALLOC_LEN);
return 0;
}
static int initr_console_record(void)
{
#if defined(CONFIG_CONSOLE_RECORD)
return console_record_init();
#else
return 0;
#endif
}
#ifdef CONFIG_SYS_NONCACHED_MEMORY
static int initr_noncached(void)
{
noncached_init();
return 0;
}
#endif
#ifdef CONFIG_OF_LIVE
static int initr_of_live(void)
{
int ret;
bootstage_start(BOOTSTAGE_ID_ACCUM_OF_LIVE, "of_live");
ret = of_live_build(gd->fdt_blob, (struct device_node **)&gd->of_root);
bootstage_accum(BOOTSTAGE_ID_ACCUM_OF_LIVE);
if (ret)
return ret;
return 0;
}
#endif
#ifdef CONFIG_DM
static int initr_dm(void)
{
int ret;
/* Save the pre-reloc driver model and start a new one */
gd->dm_root_f = gd->dm_root;
gd->dm_root = NULL;
#ifdef CONFIG_TIMER
gd->timer = NULL;
#endif
bootstage_start(BOOTSTATE_ID_ACCUM_DM_R, "dm_r");
ret = dm_init_and_scan(false);
bootstage_accum(BOOTSTATE_ID_ACCUM_DM_R);
if (ret)
return ret;
#ifdef CONFIG_TIMER_EARLY
ret = dm_timer_init();
if (ret)
return ret;
#endif
return 0;
}
#endif
static int initr_bootstage(void)
{
bootstage_mark_name(BOOTSTAGE_ID_START_UBOOT_R, "board_init_r");
return 0;
}
__weak int power_init_board(void)
{
return 0;
}
static int initr_announce(void)
{
debug("Now running in RAM - U-Boot at: %08lx\n", gd->relocaddr);
return 0;
}
#ifdef CONFIG_NEEDS_MANUAL_RELOC
static int initr_manual_reloc_cmdtable(void)
{
fixup_cmdtable(ll_entry_start(cmd_tbl_t, cmd),
ll_entry_count(cmd_tbl_t, cmd));
return 0;
}
#endif
#if defined(CONFIG_MTD_NOR_FLASH)
static int initr_flash(void)
{
ulong flash_size = 0;
bd_t *bd = gd->bd;
puts("Flash: ");
if (board_flash_wp_on())
printf("Uninitialized - Write Protect On\n");
else
flash_size = flash_init();
print_size(flash_size, "");
#ifdef CONFIG_SYS_FLASH_CHECKSUM
/*
* Compute and print flash CRC if flashchecksum is set to 'y'
*
* NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
*/
if (env_get_yesno("flashchecksum") == 1) {
const uchar *flash_base = (const uchar *)CONFIG_SYS_FLASH_BASE;
printf(" CRC: %08X", crc32(0,
flash_base,
flash_size));
}
#endif /* CONFIG_SYS_FLASH_CHECKSUM */
putc('\n');
/* update start of FLASH memory */
#ifdef CONFIG_SYS_FLASH_BASE
bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
#endif
/* size of FLASH memory (final value) */
bd->bi_flashsize = flash_size;
#if defined(CONFIG_SYS_UPDATE_FLASH_SIZE)
/* Make a update of the Memctrl. */
update_flash_size(flash_size);
#endif
#if defined(CONFIG_OXC) || defined(CONFIG_RMU)
/* flash mapped at end of memory map */
bd->bi_flashoffset = CONFIG_SYS_TEXT_BASE + flash_size;
#elif CONFIG_SYS_MONITOR_BASE == CONFIG_SYS_FLASH_BASE
bd->bi_flashoffset = monitor_flash_len; /* reserved area for monitor */
#endif
return 0;
}
#endif
#if defined(CONFIG_PPC) && !defined(CONFIG_DM_SPI)
static int initr_spi(void)
{
/* MPC8xx does this here */
#ifdef CONFIG_MPC8XX_SPI
#if !defined(CONFIG_ENV_IS_IN_EEPROM)
spi_init_f();
#endif
spi_init_r();
#endif
return 0;
}
#endif
#ifdef CONFIG_CMD_NAND
/* go init the NAND */
static int initr_nand(void)
{
puts("NAND: ");
nand_init();
printf("%lu MiB\n", nand_size() / 1024);
return 0;
}
#endif
#if defined(CONFIG_CMD_ONENAND)
/* go init the NAND */
static int initr_onenand(void)
{
puts("NAND: ");
onenand_init();
return 0;
}
#endif
#ifdef CONFIG_MMC
static int initr_mmc(void)
{
puts("MMC: ");
mmc_initialize(gd->bd);
return 0;
}
#endif
/*
* Tell if it's OK to load the environment early in boot.
*
* If CONFIG_OF_CONTROL is defined, we'll check with the FDT to see
* if this is OK (defaulting to saying it's OK).
*
* NOTE: Loading the environment early can be a bad idea if security is
* important, since no verification is done on the environment.
*
* @return 0 if environment should not be loaded, !=0 if it is ok to load
*/
static int should_load_env(void)
{
#ifdef CONFIG_OF_CONTROL
return fdtdec_get_config_int(gd->fdt_blob, "load-environment", 1);
#elif defined CONFIG_DELAY_ENVIRONMENT
return 0;
#else
return 1;
#endif
}
static int initr_env(void)
{
/* initialize environment */
if (should_load_env())
env_relocate();
else
set_default_env(NULL);
#ifdef CONFIG_OF_CONTROL
env_set_addr("fdtcontroladdr", gd->fdt_blob);
#endif
/* Initialize from environment */
load_addr = env_get_ulong("loadaddr", 16, load_addr);
return 0;
}
#ifdef CONFIG_SYS_BOOTPARAMS_LEN
static int initr_malloc_bootparams(void)
{
gd->bd->bi_boot_params = (ulong)malloc(CONFIG_SYS_BOOTPARAMS_LEN);
if (!gd->bd->bi_boot_params) {
puts("WARNING: Cannot allocate space for boot parameters\n");
return -ENOMEM;
}
return 0;
}
#endif
static int initr_jumptable(void)
{
jumptable_init();
return 0;
}
#if defined(CONFIG_API)
static int initr_api(void)
{
/* Initialize API */
api_init();
return 0;
}
#endif
/* enable exceptions */
#ifdef CONFIG_ARM
static int initr_enable_interrupts(void)
{
enable_interrupts();
return 0;
}
#endif
#ifdef CONFIG_CMD_NET
static int initr_ethaddr(void)
{
bd_t *bd = gd->bd;
/* kept around for legacy kernels only ... ignore the next section */
eth_env_get_enetaddr("ethaddr", bd->bi_enetaddr);
#ifdef CONFIG_HAS_ETH1
eth_env_get_enetaddr("eth1addr", bd->bi_enet1addr);
#endif
#ifdef CONFIG_HAS_ETH2
eth_env_get_enetaddr("eth2addr", bd->bi_enet2addr);
#endif
#ifdef CONFIG_HAS_ETH3
eth_env_get_enetaddr("eth3addr", bd->bi_enet3addr);
#endif
#ifdef CONFIG_HAS_ETH4
eth_env_get_enetaddr("eth4addr", bd->bi_enet4addr);
#endif
#ifdef CONFIG_HAS_ETH5
eth_env_get_enetaddr("eth5addr", bd->bi_enet5addr);
#endif
return 0;
}
#endif /* CONFIG_CMD_NET */
#ifdef CONFIG_CMD_KGDB
static int initr_kgdb(void)
{
puts("KGDB: ");
kgdb_init();
return 0;
}
#endif
#if defined(CONFIG_LED_STATUS)
static int initr_status_led(void)
{
#if defined(CONFIG_LED_STATUS_BOOT)
status_led_set(CONFIG_LED_STATUS_BOOT, CONFIG_LED_STATUS_BLINKING);
#else
status_led_init();
#endif
return 0;
}
#endif
#if defined(CONFIG_SCSI) && !defined(CONFIG_DM_SCSI)
static int initr_scsi(void)
{
puts("SCSI: ");
scsi_init();
return 0;
}
#endif
#ifdef CONFIG_BITBANGMII
static int initr_bbmii(void)
{
bb_miiphy_init();
return 0;
}
#endif
#ifdef CONFIG_CMD_NET
static int initr_net(void)
{
puts("Net: ");
eth_initialize();
#if defined(CONFIG_RESET_PHY_R)
debug("Reset Ethernet PHY\n");
reset_phy();
#endif
return 0;
}
#endif
#ifdef CONFIG_POST
static int initr_post(void)
{
post_run(NULL, POST_RAM | post_bootmode_get(0));
return 0;
}
#endif
#if defined(CONFIG_CMD_PCMCIA) && !defined(CONFIG_IDE)
static int initr_pcmcia(void)
{
puts("PCMCIA:");
pcmcia_init();
return 0;
}
#endif
#if defined(CONFIG_IDE)
static int initr_ide(void)
{
puts("IDE: ");
#if defined(CONFIG_START_IDE)
if (board_start_ide())
ide_init();
#else
ide_init();
#endif
return 0;
}
#endif
#if defined(CONFIG_PRAM)
/*
* Export available size of memory for Linux, taking into account the
* protected RAM at top of memory
*/
int initr_mem(void)
{
ulong pram = 0;
char memsz[32];
pram = env_get_ulong("pram", 10, CONFIG_PRAM);
sprintf(memsz, "%ldk", (long int)((gd->ram_size / 1024) - pram));
env_set("mem", memsz);
return 0;
}
#endif
#ifdef CONFIG_CMD_BEDBUG
static int initr_bedbug(void)
{
bedbug_init();
return 0;
}
#endif
static int run_main_loop(void)
{
#ifdef CONFIG_SANDBOX
sandbox_main_loop_init();
#endif
/* main_loop() can return to retry autoboot, if so just run it again */
for (;;)
main_loop();
return 0;
}
/*
* Over time we hope to remove these functions with code fragments and
* stub functions, and instead call the relevant function directly.
*
* We also hope to remove most of the driver-related init and do it if/when
* the driver is later used.
*
* TODO: perhaps reset the watchdog in the initcall function after each call?
*/
static init_fnc_t init_sequence_r[] = {
initr_trace,
initr_reloc,
/* TODO: could x86/PPC have this also perhaps? */
#ifdef CONFIG_ARM
initr_caches,
/* Note: For Freescale LS2 SoCs, new MMU table is created in DDR.
* A temporary mapping of IFC high region is since removed,
* so environmental variables in NOR flash is not available
* until board_init() is called below to remap IFC to high
* region.
*/
#endif
initr_reloc_global_data,
#if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500)
initr_unlock_ram_in_cache,
#endif
initr_barrier,
initr_malloc,
log_init,
initr_bootstage, /* Needs malloc() but has its own timer */
initr_console_record,
#ifdef CONFIG_SYS_NONCACHED_MEMORY
initr_noncached,
#endif
bootstage_relocate,
#ifdef CONFIG_OF_LIVE
initr_of_live,
#endif
#ifdef CONFIG_DM
initr_dm,
#endif
#if defined(CONFIG_ARM) || defined(CONFIG_NDS32) || defined(CONFIG_RISCV)
board_init, /* Setup chipselects */
#endif
/*
* TODO: printing of the clock inforamtion of the board is now
* implemented as part of bdinfo command. Currently only support for
* davinci SOC's is added. Remove this check once all the board
* implement this.
*/
#ifdef CONFIG_CLOCKS
set_cpu_clk_info, /* Setup clock information */
#endif
#ifdef CONFIG_EFI_LOADER
efi_memory_init,
#endif
stdio_init_tables,
initr_serial,
initr_announce,
INIT_FUNC_WATCHDOG_RESET
#ifdef CONFIG_NEEDS_MANUAL_RELOC
initr_manual_reloc_cmdtable,
#endif
#if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_MIPS)
initr_trap,
#endif
#ifdef CONFIG_ADDR_MAP
initr_addr_map,
#endif
#if defined(CONFIG_BOARD_EARLY_INIT_R)
board_early_init_r,
#endif
INIT_FUNC_WATCHDOG_RESET
#ifdef CONFIG_POST
initr_post_backlog,
#endif
INIT_FUNC_WATCHDOG_RESET
#if defined(CONFIG_PCI) && defined(CONFIG_SYS_EARLY_PCI_INIT)
/*
* Do early PCI configuration _before_ the flash gets initialised,
* because PCU resources are crucial for flash access on some boards.
*/
initr_pci,
#endif
#ifdef CONFIG_ARCH_EARLY_INIT_R
arch_early_init_r,
#endif
power_init_board,
#ifdef CONFIG_MTD_NOR_FLASH
initr_flash,
#endif
INIT_FUNC_WATCHDOG_RESET
#if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_X86)
/* initialize higher level parts of CPU like time base and timers */
cpu_init_r,
#endif
#ifdef CONFIG_PPC
initr_spi,
#endif
#ifdef CONFIG_CMD_NAND
initr_nand,
#endif
#ifdef CONFIG_CMD_ONENAND
initr_onenand,
#endif
#ifdef CONFIG_MMC
initr_mmc,
#endif
initr_env,
#ifdef CONFIG_SYS_BOOTPARAMS_LEN
initr_malloc_bootparams,
#endif
INIT_FUNC_WATCHDOG_RESET
initr_secondary_cpu,
#if defined(CONFIG_ID_EEPROM) || defined(CONFIG_SYS_I2C_MAC_OFFSET)
mac_read_from_eeprom,
#endif
INIT_FUNC_WATCHDOG_RESET
#if defined(CONFIG_PCI) && !defined(CONFIG_SYS_EARLY_PCI_INIT)
/*
* Do pci configuration
*/
initr_pci,
#endif
stdio_add_devices,
initr_jumptable,
#ifdef CONFIG_API
initr_api,
#endif
console_init_r, /* fully init console as a device */
#ifdef CONFIG_DISPLAY_BOARDINFO_LATE
console_announce_r,
show_board_info,
#endif
#ifdef CONFIG_ARCH_MISC_INIT
arch_misc_init, /* miscellaneous arch-dependent init */
#endif
#ifdef CONFIG_MISC_INIT_R
misc_init_r, /* miscellaneous platform-dependent init */
#endif
INIT_FUNC_WATCHDOG_RESET
#ifdef CONFIG_CMD_KGDB
initr_kgdb,
#endif
interrupt_init,
#ifdef CONFIG_ARM
initr_enable_interrupts,
#endif
#if defined(CONFIG_MICROBLAZE) || defined(CONFIG_M68K)
timer_init, /* initialize timer */
#endif
#if defined(CONFIG_LED_STATUS)
initr_status_led,
#endif
/* PPC has a udelay(20) here dating from 2002. Why? */
#ifdef CONFIG_CMD_NET
initr_ethaddr,
#endif
#ifdef CONFIG_BOARD_LATE_INIT
board_late_init,
#endif
#if defined(CONFIG_SCSI) && !defined(CONFIG_DM_SCSI)
INIT_FUNC_WATCHDOG_RESET
initr_scsi,
#endif
#ifdef CONFIG_BITBANGMII
initr_bbmii,
#endif
#ifdef CONFIG_CMD_NET
INIT_FUNC_WATCHDOG_RESET
initr_net,
#endif
#ifdef CONFIG_POST
initr_post,
#endif
#if defined(CONFIG_CMD_PCMCIA) && !defined(CONFIG_IDE)
initr_pcmcia,
#endif
#if defined(CONFIG_IDE)
initr_ide,
#endif
#ifdef CONFIG_LAST_STAGE_INIT
INIT_FUNC_WATCHDOG_RESET
/*
* Some parts can be only initialized if all others (like
* Interrupts) are up and running (i.e. the PC-style ISA
* keyboard).
*/
last_stage_init,
#endif
#ifdef CONFIG_CMD_BEDBUG
INIT_FUNC_WATCHDOG_RESET
initr_bedbug,
#endif
#if defined(CONFIG_PRAM)
initr_mem,
#endif
run_main_loop,
};
void board_init_r(gd_t *new_gd, ulong dest_addr)
{
/*
* Set up the new global data pointer. So far only x86 does this
* here.
* TODO(sjg@chromium.org): Consider doing this for all archs, or
* dropping the new_gd parameter.
*/
#if CONFIG_IS_ENABLED(X86_64)
arch_setup_gd(new_gd);
#endif
#ifdef CONFIG_NEEDS_MANUAL_RELOC
int i;
#endif
#if !defined(CONFIG_X86) && !defined(CONFIG_ARM) && !defined(CONFIG_ARM64)
gd = new_gd;
#endif
gd->flags &= ~GD_FLG_LOG_READY;
#ifdef CONFIG_NEEDS_MANUAL_RELOC
for (i = 0; i < ARRAY_SIZE(init_sequence_r); i++)
init_sequence_r[i] += gd->reloc_off;
#endif
if (initcall_run_list(init_sequence_r))
hang();
/* NOTREACHED - run_main_loop() does not return */
hang();
}
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