int mem_malloc_init_r(void)
{
mem_malloc_init(((gd->relocaddr - CONFIG_SYS_MALLOC_LEN)+3)&~3,
CONFIG_SYS_MALLOC_LEN);
return 0;
}
/**
* Called plainly from assembler code
*
* @note The C environment isn't initialized yet
*/
void __bare_init main_entry(void *fdt, u32 fdt_size)
{
unsigned long malloc_start, malloc_end;
/* clear the BSS first */
memset(__bss_start, 0x00, __bss_stop - __bss_start);
cpu_probe();
if (cpu_has_4k_cache) {
extern void r4k_cache_init(void);
r4k_cache_init();
}
trap_init();
malloc_end = _stext;
if (MALLOC_SIZE > 0)
malloc_start = malloc_end - MALLOC_SIZE;
else
malloc_start = malloc_end - SZ_8M;
pr_debug("initializing malloc pool at 0x%08lx (size 0x%08lx)\n",
malloc_start, malloc_end - malloc_start);
mem_malloc_init((void *)malloc_start, (void *)_stext - 1);
mips_stack_top = malloc_start;
glob_fdt = fdt;
glob_fdt_size = fdt_size;
start_barebox();
}
static int sh_mem_env_init(void)
{
mem_malloc_init(CONFIG_SYS_TEXT_BASE - GENERATED_GBL_DATA_SIZE -
CONFIG_SYS_MALLOC_LEN, CONFIG_SYS_MALLOC_LEN - 16);
env_relocate();
jumptable_init();
return 0;
}
void __noreturn nios_start_barebox(void)
{
mem_malloc_init((void *)(NIOS_SOPC_TEXT_BASE - MALLOC_SIZE),
(void *)(NIOS_SOPC_TEXT_BASE - 1));
start_barebox();
}
void board_init_r(gd_t *gd, ulong dest_addr)
{
/* Pointer is writable since we allocated a register for it */
gd = (gd_t *)CONFIG_SPL_GD_ADDR;
bd_t *bd;
memset(gd, 0, sizeof(gd_t));
bd = (bd_t *)(CONFIG_SPL_GD_ADDR + sizeof(gd_t));
memset(bd, 0, sizeof(bd_t));
gd->bd = bd;
bd->bi_memstart = CONFIG_SYS_INIT_L2_ADDR;
bd->bi_memsize = CONFIG_SYS_L2_SIZE;
probecpu();
get_clocks();
mem_malloc_init(CONFIG_SPL_RELOC_MALLOC_ADDR,
CONFIG_SPL_RELOC_MALLOC_SIZE);
#ifndef CONFIG_SPL_NAND_BOOT
env_init();
#endif
#ifdef CONFIG_SPL_MMC_BOOT
mmc_initialize(bd);
#endif
/* relocate environment function pointers etc. */
#ifdef CONFIG_SPL_NAND_BOOT
nand_spl_load_image(CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE,
(uchar *)CONFIG_ENV_ADDR);
gd->env_addr = (ulong)(CONFIG_ENV_ADDR);
gd->env_valid = 1;
#else
env_relocate();
#endif
#ifdef CONFIG_SYS_I2C
i2c_init_all();
#else
i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
#endif
gd->ram_size = initdram(0);
#ifdef CONFIG_SPL_NAND_BOOT
puts("Tertiary program loader running in sram...");
#else
puts("Second program loader running in sram...\n");
#endif
#ifdef CONFIG_SPL_MMC_BOOT
mmc_boot();
#elif defined(CONFIG_SPL_SPI_BOOT)
spi_boot();
#elif defined(CONFIG_SPL_NAND_BOOT)
nand_boot();
#endif
}
void board_init_r(gd_t *id, ulong dummy)
{
u32 boot_device;
debug(">>spl:board_init_r()\n");
mem_malloc_init(CONFIG_SYS_SPL_MALLOC_START,
CONFIG_SYS_SPL_MALLOC_SIZE);
#ifdef CONFIG_SPL_BOARD_INIT
spl_board_init();
#endif
boot_device = omap_boot_device();
debug("boot device - %d\n", boot_device);
switch (boot_device) {
#ifdef CONFIG_SPL_MMC_SUPPORT
case BOOT_DEVICE_MMC1:
case BOOT_DEVICE_MMC2:
case BOOT_DEVICE_MMC2_2:
spl_mmc_load_image();
break;
#endif
#ifdef CONFIG_SPL_NAND_SUPPORT
case BOOT_DEVICE_NAND:
spl_nand_load_image();
break;
#endif
#ifdef CONFIG_SPL_YMODEM_SUPPORT
case BOOT_DEVICE_UART:
spl_ymodem_load_image();
break;
#endif
default:
printf("SPL: Un-supported Boot Device - %d!!!\n", boot_device);
hang();
break;
}
switch (spl_image.os) {
case IH_OS_U_BOOT:
debug("Jumping to U-Boot\n");
jump_to_image_no_args();
break;
#ifdef CONFIG_SPL_OS_BOOT
case IH_OS_LINUX:
debug("Jumping to Linux\n");
spl_board_prepare_for_linux();
jump_to_image_linux((void *)CONFIG_SYS_SPL_ARGS_ADDR);
break;
#endif
default:
puts("Unsupported OS image.. Jumping nevertheless..\n");
jump_to_image_no_args();
}
}
/************************************************************************
*
* This is the next part if the initialization sequence: we are now
* running from RAM and have a "normal" C environment, i. e. global
* data can be written, BSS has been cleared, the stack size in not
* that critical any more, etc.
*
************************************************************************
*/
void bootstrap_board_init_r(gd_t *id, ulong dest_addr)
{
int i;
ulong addr;
ulong data, len, checksum;
image_header_t header;
image_header_t *hdr = &header;
unsigned int destLen;
int (*fn)(int);
/* Initialize malloc() area */
mem_malloc_init(dest_addr);
addr = (ulong)((char *)(BOOTSTRAP_CFG_MONITOR_BASE + ((ulong)&uboot_end_data_bootstrap - dest_addr)));
memmove(&header, (char *)addr, sizeof(image_header_t));
if (ntohl(hdr->ih_magic) != IH_MAGIC)
return;
data = (ulong)&header;
len = sizeof(image_header_t);
checksum = ntohl(hdr->ih_hcrc);
hdr->ih_hcrc = 0;
if (tinf_crc32((unsigned char *)data, len) != checksum)
return;
data = addr + sizeof(image_header_t);
len = ntohl(hdr->ih_size);
/*
* If we've got less than 4 MB of malloc() space,
* use slower decompression algorithm which requires
* at most 2300 KB of memory.
*/
destLen = 0x0;
#ifdef CONFIG_LZMA
i = lzma_inflate((unsigned char *)data, len, (unsigned char*)ntohl(hdr->ih_load), (int *)&destLen);
if (i != LZMA_RESULT_OK)
return;
#endif
fn = (void *)ntohl(hdr->ih_load);
(*fn)(gd->ram_size);
hang();
}
static int initr_malloc(void)
{
ulong malloc_start;
#ifdef CONFIG_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 x86_mem_malloc_init(void)
{
#ifdef CONFIG_MEMORY_LAYOUT_DEFAULT
unsigned long memory_size;
memory_size = bios_get_memsize();
memory_size <<= 10; /* BIOS reports in kiB */
/*
* We do not want to conflict with the kernel. So, we keep the
* area from 0x100000 ... 0xFFFFFF free from usage
*/
if (memory_size >= (15 * 1024 * 1024 + MALLOC_SIZE))
mem_malloc_init((void*)(16 * 1024 * 1024),
(void*)(16 * 1024 * 1024 + MALLOC_SIZE - 1));
else
return -1;
#else
mem_malloc_init((void *)MALLOC_BASE,
(void *)(MALLOC_BASE + MALLOC_SIZE - 1));
#endif
return 0;
}
void board_init_r(gd_t *id, ulong dummy)
{
u32 boot_device;
debug(">>spl:board_init_r()\n");
mem_malloc_init(CONFIG_SYS_SPL_MALLOC_START,
CONFIG_SYS_SPL_MALLOC_SIZE);
timer_init();
i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
boot_device = omap_boot_device();
debug("boot device - %d\n", boot_device);
switch (boot_device) {
#ifdef CONFIG_SPL_MMC_SUPPORT
case BOOT_DEVICE_MMC1:
case BOOT_DEVICE_MMC2:
spl_mmc_load_image();
break;
#endif
#ifdef CONFIG_SPL_NAND_SUPPORT
case BOOT_DEVICE_NAND:
spl_nand_load_image();
break;
#endif
default:
printf("SPL: Un-supported Boot Device - %d!!!\n", boot_device);
hang();
break;
}
switch (spl_image.os) {
case IH_OS_U_BOOT:
debug("Jumping to U-Boot\n");
jump_to_image_no_args();
break;
default:
puts("Unsupported OS image.. Jumping nevertheless..\n");
jump_to_image_no_args();
}
}
void board_init_r(gd_t *gd, ulong dest_addr)
{
/* Pointer is writable since we allocated a register for it */
gd = (gd_t *)CONFIG_SPL_GD_ADDR;
bd_t *bd;
memset(gd, 0, sizeof(gd_t));
bd = (bd_t *)(CONFIG_SPL_GD_ADDR + sizeof(gd_t));
memset(bd, 0, sizeof(bd_t));
gd->bd = bd;
bd->bi_memstart = CONFIG_SYS_INIT_L2_ADDR;
bd->bi_memsize = CONFIG_SYS_L2_SIZE;
arch_cpu_init();
get_clocks();
mem_malloc_init(CONFIG_SPL_RELOC_MALLOC_ADDR,
CONFIG_SPL_RELOC_MALLOC_SIZE);
gd->flags |= GD_FLG_FULL_MALLOC_INIT;
/* relocate environment function pointers etc. */
nand_spl_load_image(CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE,
(uchar *)CONFIG_ENV_ADDR);
gd->env_addr = (ulong)(CONFIG_ENV_ADDR);
gd->env_valid = ENV_VALID;
i2c_init_all();
dram_init();
#ifdef CONFIG_SPL_NAND_BOOT
puts("TPL\n");
#else
puts("SPL\n");
#endif
nand_boot();
}
void board_init_r(gd_t *id, ulong dummy)
{
struct pmux_tri_ctlr *pmt = (struct pmux_tri_ctlr *)NV_PA_APB_MISC_BASE;
/* enable JTAG */
writel(0xC0, &pmt->pmt_cfg_ctl);
debug(">>spl:board_init_r()\n");
mem_malloc_init(CONFIG_SYS_SPL_MALLOC_START,
CONFIG_SYS_SPL_MALLOC_SIZE);
#ifdef CONFIG_SPL_BOARD_INIT
spl_board_init();
#endif
clock_early_init();
serial_init();
preloader_console_init();
start_cpu((u32)CONFIG_SYS_TEXT_BASE);
halt_avp();
/* not reached */
}
__noreturn void barebox_non_pbl_start(unsigned long membase,
unsigned long memsize, void *boarddata)
{
unsigned long endmem = membase + memsize;
unsigned long malloc_start, malloc_end;
unsigned long barebox_size = barebox_image_size + MAX_BSS_SIZE;
if (IS_ENABLED(CONFIG_RELOCATABLE)) {
unsigned long barebox_base = arm_mem_barebox_image(membase,
endmem,
barebox_size);
relocate_to_adr(barebox_base);
}
setup_c();
barrier();
pr_debug("memory at 0x%08lx, size 0x%08lx\n", membase, memsize);
arm_stack_top = endmem;
arm_barebox_size = barebox_size;
malloc_end = arm_mem_barebox_image(membase, endmem,
arm_barebox_size);
if (IS_ENABLED(CONFIG_MMU_EARLY)) {
unsigned long ttb = arm_mem_ttb(membase, endmem);
if (IS_ENABLED(CONFIG_PBL_IMAGE)) {
arm_set_cache_functions();
} else {
pr_debug("enabling MMU, ttb @ 0x%08lx\n", ttb);
arm_early_mmu_cache_invalidate();
mmu_early_enable(membase, memsize, ttb);
}
}
if (boarddata) {
uint32_t totalsize = 0;
const char *name;
if (blob_is_fdt(boarddata)) {
totalsize = get_unaligned_be32(boarddata + 4);
name = "DTB";
} else if (blob_is_compressed_fdt(boarddata)) {
struct barebox_arm_boarddata_compressed_dtb *bd = boarddata;
totalsize = bd->datalen + sizeof(*bd);
name = "Compressed DTB";
} else if (blob_is_arm_boarddata(boarddata)) {
totalsize = sizeof(struct barebox_arm_boarddata);
name = "machine type";
}
if (totalsize) {
unsigned long mem = arm_mem_boarddata(membase, endmem,
totalsize);
pr_debug("found %s in boarddata, copying to 0x%08lx\n",
name, mem);
barebox_boarddata = memcpy((void *)mem, boarddata,
totalsize);
barebox_boarddata_size = totalsize;
malloc_end = mem;
}
}
/*
* Maximum malloc space is the Kconfig value if given
* or 1GB.
*/
if (MALLOC_SIZE > 0) {
malloc_start = malloc_end - MALLOC_SIZE;
if (malloc_start < membase)
malloc_start = membase;
} else {
malloc_start = malloc_end - (malloc_end - membase) / 2;
if (malloc_end - malloc_start > SZ_1G)
malloc_start = malloc_end - SZ_1G;
}
pr_debug("initializing malloc pool at 0x%08lx (size 0x%08lx)\n",
malloc_start, malloc_end - malloc_start);
mem_malloc_init((void *)malloc_start, (void *)malloc_end - 1);
pr_debug("starting barebox...\n");
start_barebox();
}
void board_init_r(gd_t *id, ulong dest_addr)
{
ulong malloc_start;
#if !defined(CONFIG_SYS_NO_FLASH)
ulong flash_size;
#endif
gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
bootstage_mark_name(BOOTSTAGE_ID_START_UBOOT_R, "board_init_r");
monitor_flash_len = (ulong)&__rel_dyn_end - (ulong)_start;
/* Enable caches */
enable_caches();
debug("monitor flash len: %08lX\n", monitor_flash_len);
board_init(); /* Setup chipselects */
/*
* 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
serial_initialize();
debug("Now running in RAM - U-Boot at: %08lx\n", dest_addr);
#ifdef CONFIG_LOGBUFFER
logbuff_init_ptrs();
#endif
#ifdef CONFIG_POST
post_output_backlog();
#endif
/* The Malloc area is immediately below the monitor copy in DRAM */
malloc_start = dest_addr - TOTAL_MALLOC_LEN;
mem_malloc_init (malloc_start, TOTAL_MALLOC_LEN);
#ifdef CONFIG_ARCH_EARLY_INIT_R
arch_early_init_r();
#endif
power_init_board();
#if !defined(CONFIG_SYS_NO_FLASH)
puts("Flash: ");
flash_size = flash_init();
if (flash_size > 0) {
# ifdef CONFIG_SYS_FLASH_CHECKSUM
print_size(flash_size, "");
/*
* Compute and print flash CRC if flashchecksum is set to 'y'
*
* NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
*/
if (getenv_yesno("flashchecksum") == 1) {
printf(" CRC: %08X", crc32(0,
(const unsigned char *) CONFIG_SYS_FLASH_BASE,
flash_size));
}
putc('\n');
# else /* !CONFIG_SYS_FLASH_CHECKSUM */
print_size(flash_size, "\n");
# endif /* CONFIG_SYS_FLASH_CHECKSUM */
} else {
puts(failed);
hang();
}
#endif
#if defined(CONFIG_CMD_NAND)
puts("NAND: ");
nand_init(); /* go init the NAND */
#endif
#if defined(CONFIG_CMD_ONENAND)
onenand_init();
#endif
#ifdef CONFIG_GENERIC_MMC
puts("MMC: ");
mmc_initialize(gd->bd);
#endif
#ifdef CONFIG_CMD_SCSI
puts("SCSI: ");
scsi_init();
#endif
#ifdef CONFIG_HAS_DATAFLASH
AT91F_DataflashInit();
dataflash_print_info();
#endif
/* initialize environment */
if (should_load_env())
env_relocate();
else
set_default_env(NULL);
#if defined(CONFIG_CMD_PCI) || defined(CONFIG_PCI)
arm_pci_init();
#endif
stdio_init(); /* get the devices list going. */
jumptable_init();
#if defined(CONFIG_API)
/* Initialize API */
api_init();
#endif
console_init_r(); /* fully init console as a device */
#ifdef CONFIG_DISPLAY_BOARDINFO_LATE
# ifdef CONFIG_OF_CONTROL
/* Put this here so it appears on the LCD, now it is ready */
display_fdt_model(gd->fdt_blob);
# else
checkboard();
# endif
#endif
#if defined(CONFIG_ARCH_MISC_INIT)
/* miscellaneous arch dependent initialisations */
arch_misc_init();
#endif
#if defined(CONFIG_MISC_INIT_R)
/* miscellaneous platform dependent initialisations */
misc_init_r();
#endif
/* set up exceptions */
interrupt_init();
/* enable exceptions */
enable_interrupts();
/* Initialize from environment */
load_addr = getenv_ulong("loadaddr", 16, load_addr);
#ifdef CONFIG_BOARD_LATE_INIT
board_late_init();
#endif
#ifdef CONFIG_FASTBOOT
fastboot_setup();
#endif
#ifdef CONFIG_BITBANGMII
bb_miiphy_init();
#endif
#if defined(CONFIG_CMD_NET)
puts("Net: ");
eth_initialize(gd->bd);
#if defined(CONFIG_RESET_PHY_R)
debug("Reset Ethernet PHY\n");
reset_phy();
#endif
#endif
#ifdef CONFIG_POST
post_run(NULL, POST_RAM | post_bootmode_get(0));
#endif
#if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER)
/*
* Export available size of memory for Linux,
* taking into account the protected RAM at top of memory
*/
{
ulong pram = 0;
uchar memsz[32];
#ifdef CONFIG_PRAM
pram = getenv_ulong("pram", 10, CONFIG_PRAM);
#endif
#ifdef CONFIG_LOGBUFFER
#ifndef CONFIG_ALT_LB_ADDR
/* Also take the logbuffer into account (pram is in kB) */
pram += (LOGBUFF_LEN + LOGBUFF_OVERHEAD) / 1024;
#endif
#endif
sprintf((char *)memsz, "%ldk", (gd->ram_size / 1024) - pram);
setenv("mem", (char *)memsz);
}
#endif
#ifdef CONFIG_FASTBOOT
check_fastboot();
#endif
/* main_loop() can return to retry autoboot, if so just run it again. */
for (;;) {
main_loop();
}
/* NOTREACHED - no way out of command loop except booting */
}
void board_init_r(gd_t *id, ulong dest_addr)
{
char *s;
bd_t *bd;
ulong malloc_start;
#if !defined(CONFIG_SYS_NO_FLASH)
ulong flash_size;
#endif
gd = id;
bd = gd->bd;
gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
monitor_flash_len = _end_ofs;
/*
* Enable D$:
* I$, if needed, must be already enabled in start.S
*/
dcache_enable();
debug("monitor flash len: %08lX\n", monitor_flash_len);
board_init(); /* Setup chipselects */
#ifdef CONFIG_SERIAL_MULTI
serial_initialize();
#endif
debug("Now running in RAM - U-Boot at: %08lx\n", dest_addr);
#ifdef CONFIG_LOGBUFFER
logbuff_init_ptrs();
#endif
#ifdef CONFIG_POST
post_output_backlog();
#endif
/* The Malloc area is immediately below the monitor copy in DRAM */
malloc_start = dest_addr - TOTAL_MALLOC_LEN;
mem_malloc_init (malloc_start, TOTAL_MALLOC_LEN);
#if !defined(CONFIG_SYS_NO_FLASH)
puts("Flash: ");
flash_size = flash_init();
if (flash_size > 0) {
# ifdef CONFIG_SYS_FLASH_CHECKSUM
print_size(flash_size, "");
/*
* Compute and print flash CRC if flashchecksum is set to 'y'
*
* NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
*/
s = getenv("flashchecksum");
if (s && (*s == 'y')) {
printf(" CRC: %08X", crc32(0,
(const unsigned char *) CONFIG_SYS_FLASH_BASE,
flash_size));
}
putc('\n');
# else /* !CONFIG_SYS_FLASH_CHECKSUM */
print_size(flash_size, "\n");
# endif /* CONFIG_SYS_FLASH_CHECKSUM */
} else {
puts(failed);
hang();
}
#endif
#if defined(CONFIG_CMD_NAND)
puts("NAND: ");
nand_init(); /* go init the NAND */
#endif
#if defined(CONFIG_CMD_ONENAND)
onenand_init();
#endif
#ifdef CONFIG_GENERIC_MMC
puts("MMC: ");
mmc_initialize(bd);
#endif
#ifdef CONFIG_HAS_DATAFLASH
AT91F_DataflashInit();
dataflash_print_info();
#endif
/* initialize environment */
env_relocate();
#if defined(CONFIG_CMD_PCI) || defined(CONFIG_PCI)
arm_pci_init();
#endif
/* IP Address */
gd->bd->bi_ip_addr = getenv_IPaddr("ipaddr");
stdio_init(); /* get the devices list going. */
jumptable_init();
#if defined(CONFIG_API)
/* Initialize API */
api_init();
#endif
console_init_r(); /* fully init console as a device */
#if defined(CONFIG_ARCH_MISC_INIT)
/* miscellaneous arch dependent initialisations */
arch_misc_init();
#endif
#if defined(CONFIG_MISC_INIT_R)
/* miscellaneous platform dependent initialisations */
misc_init_r();
#endif
/* set up exceptions */
interrupt_init();
/* enable exceptions */
enable_interrupts();
/* Perform network card initialisation if necessary */
#if defined(CONFIG_DRIVER_SMC91111) || defined (CONFIG_DRIVER_LAN91C96)
/* XXX: this needs to be moved to board init */
if (getenv("ethaddr")) {
uchar enetaddr[6];
eth_getenv_enetaddr("ethaddr", enetaddr);
smc_set_mac_addr(enetaddr);
}
#endif /* CONFIG_DRIVER_SMC91111 || CONFIG_DRIVER_LAN91C96 */
/* Initialize from environment */
s = getenv("loadaddr");
if (s != NULL)
load_addr = simple_strtoul(s, NULL, 16);
#if defined(CONFIG_CMD_NET)
s = getenv("bootfile");
if (s != NULL)
copy_filename(BootFile, s, sizeof(BootFile));
#endif
#ifdef BOARD_LATE_INIT
board_late_init();
#endif
#ifdef CONFIG_BITBANGMII
bb_miiphy_init();
#endif
#if defined(CONFIG_CMD_NET)
#if defined(CONFIG_NET_MULTI)
puts("Net: ");
#endif
eth_initialize(gd->bd);
#if defined(CONFIG_RESET_PHY_R)
debug("Reset Ethernet PHY\n");
reset_phy();
#endif
#endif
#ifdef CONFIG_POST
post_run(NULL, POST_RAM | post_bootmode_get(0));
#endif
#if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER)
/*
* Export available size of memory for Linux,
* taking into account the protected RAM at top of memory
*/
{
ulong pram;
uchar memsz[32];
#ifdef CONFIG_PRAM
char *s;
s = getenv("pram");
if (s != NULL)
pram = simple_strtoul(s, NULL, 10);
else
pram = CONFIG_PRAM;
#else
pram = 0;
#endif
#ifdef CONFIG_LOGBUFFER
#ifndef CONFIG_ALT_LB_ADDR
/* Also take the logbuffer into account (pram is in kB) */
pram += (LOGBUFF_LEN + LOGBUFF_OVERHEAD) / 1024;
#endif
#endif
sprintf((char *)memsz, "%ldk", (bd->bi_memsize / 1024) - pram);
setenv("mem", (char *)memsz);
}
#endif
/* main_loop() can return to retry autoboot, if so just run it again. */
for (;;) {
main_loop();
}
/* NOTREACHED - no way out of command loop except booting */
}
void board_init (void)
{
bd_t *bd;
init_fnc_t **init_fnc_ptr;
gd = (gd_t *) (CONFIG_SYS_SDRAM_BASE + CONFIG_SYS_GBL_DATA_OFFSET);
bd = (bd_t *) (CONFIG_SYS_SDRAM_BASE + CONFIG_SYS_GBL_DATA_OFFSET \
- GENERATED_BD_INFO_SIZE);
char *s;
#if defined(CONFIG_CMD_FLASH)
ulong flash_size = 0;
#endif
asm ("nop"); /* FIXME gd is not initialize - wait */
memset ((void *)gd, 0, GENERATED_GBL_DATA_SIZE);
memset ((void *)bd, 0, GENERATED_BD_INFO_SIZE);
gd->bd = bd;
gd->baudrate = CONFIG_BAUDRATE;
bd->bi_baudrate = CONFIG_BAUDRATE;
bd->bi_memstart = CONFIG_SYS_SDRAM_BASE;
bd->bi_memsize = CONFIG_SYS_SDRAM_SIZE;
gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
/*
* The Malloc area is immediately below the monitor copy in DRAM
* aka CONFIG_SYS_MONITOR_BASE - Note there is no need for reloc_off
* as our monitory code is run from SDRAM
*/
mem_malloc_init (CONFIG_SYS_MALLOC_BASE, CONFIG_SYS_MALLOC_LEN);
for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
WATCHDOG_RESET ();
if ((*init_fnc_ptr) () != 0) {
hang ();
}
}
puts ("SDRAM :\n");
printf ("\t\tIcache:%s\n", icache_status() ? "ON" : "OFF");
printf ("\t\tDcache:%s\n", dcache_status() ? "ON" : "OFF");
printf ("\tU-Boot Start:0x%08x\n", CONFIG_SYS_TEXT_BASE);
#if defined(CONFIG_CMD_FLASH)
puts ("FLASH: ");
bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
if (0 < (flash_size = flash_init ())) {
bd->bi_flashsize = flash_size;
bd->bi_flashoffset = CONFIG_SYS_FLASH_BASE + flash_size;
# ifdef CONFIG_SYS_FLASH_CHECKSUM
print_size (flash_size, "");
/*
* Compute and print flash CRC if flashchecksum is set to 'y'
*
* NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
*/
s = getenv ("flashchecksum");
if (s && (*s == 'y')) {
printf (" CRC: %08X",
crc32 (0, (const unsigned char *) CONFIG_SYS_FLASH_BASE, flash_size)
);
}
putc ('\n');
# else /* !CONFIG_SYS_FLASH_CHECKSUM */
print_size (flash_size, "\n");
# endif /* CONFIG_SYS_FLASH_CHECKSUM */
} else {
puts ("Flash init FAILED");
bd->bi_flashstart = 0;
bd->bi_flashsize = 0;
bd->bi_flashoffset = 0;
}
#endif
/* relocate environment function pointers etc. */
env_relocate ();
/* Initialize stdio devices */
stdio_init ();
if ((s = getenv ("loadaddr")) != NULL) {
load_addr = simple_strtoul (s, NULL, 16);
}
#if defined(CONFIG_CMD_NET)
/* IP Address */
bd->bi_ip_addr = getenv_IPaddr("ipaddr");
printf("Net: ");
eth_initialize(gd->bd);
uchar enetaddr[6];
eth_getenv_enetaddr("ethaddr", enetaddr);
printf("MAC: %pM\n", enetaddr);
#endif
/* main_loop */
for (;;) {
WATCHDOG_RESET ();
main_loop ();
}
}
void board_init_r(gd_t *new_gd, ulong dest_addr)
{
extern void malloc_bin_reloc (void);
#ifndef CONFIG_ENV_IS_NOWHERE
extern char * env_name_spec;
#endif
char *s;
bd_t *bd;
gd = new_gd;
bd = gd->bd;
gd->flags |= GD_FLG_RELOC;
gd->reloc_off = dest_addr - CONFIG_SYS_MONITOR_BASE;
/* Enable the MMU so that we can keep u-boot simple */
mmu_init_r(dest_addr);
board_early_init_r();
monitor_flash_len = _edata - _text;
#if defined(CONFIG_NEEDS_MANUAL_RELOC)
/*
* We have to relocate the command table manually
*/
fixup_cmdtable(&__u_boot_cmd_start,
(ulong)(&__u_boot_cmd_end - &__u_boot_cmd_start));
#endif /* defined(CONFIG_NEEDS_MANUAL_RELOC) */
/* there are some other pointer constants we must deal with */
#ifndef CONFIG_ENV_IS_NOWHERE
env_name_spec += gd->reloc_off;
#endif
timer_init();
/* The malloc area is right below the monitor image in RAM */
mem_malloc_init(CONFIG_SYS_MONITOR_BASE + gd->reloc_off -
CONFIG_SYS_MALLOC_LEN, CONFIG_SYS_MALLOC_LEN);
malloc_bin_reloc();
dma_alloc_init();
enable_interrupts();
bd->bi_flashstart = 0;
bd->bi_flashsize = 0;
bd->bi_flashoffset = 0;
#ifndef CONFIG_SYS_NO_FLASH
bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
bd->bi_flashsize = flash_init();
bd->bi_flashoffset = (unsigned long)_edata - (unsigned long)_text;
if (bd->bi_flashsize)
display_flash_config();
#endif
if (bd->bi_dram[0].size)
display_dram_config();
gd->bd->bi_boot_params = malloc(CONFIG_SYS_BOOTPARAMS_LEN);
if (!gd->bd->bi_boot_params)
puts("WARNING: Cannot allocate space for boot parameters\n");
/* initialize environment */
env_relocate();
bd->bi_ip_addr = getenv_IPaddr ("ipaddr");
stdio_init();
jumptable_init();
console_init_r();
/* Initialize from environment */
load_addr = getenv_ulong("loadaddr", 16, load_addr);
#ifdef CONFIG_BITBANGMII
bb_miiphy_init();
#endif
#if defined(CONFIG_CMD_NET)
s = getenv("bootfile");
if (s)
copy_filename(BootFile, s, sizeof(BootFile));
puts("Net: ");
eth_initialize(gd->bd);
#endif
#ifdef CONFIG_GENERIC_ATMEL_MCI
mmc_initialize(gd->bd);
#endif
for (;;) {
main_loop();
}
}
void board_init(void)
{
bd_t *bd;
int i;
gd = (gd_t *)CONFIG_SYS_GBL_DATA_ADDR;
memset((void *)gd, 0, GENERATED_GBL_DATA_SIZE);
gd->bd = (bd_t *)(gd+1); /* At end of global data */
gd->baudrate = CONFIG_BAUDRATE;
gd->cpu_clk = CONFIG_SYS_CLK_FREQ;
bd = gd->bd;
bd->bi_memstart = CONFIG_SYS_SDRAM_BASE;
bd->bi_memsize = CONFIG_SYS_SDRAM_SIZE;
#ifndef CONFIG_SYS_NO_FLASH
bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
#endif
#if defined(CONFIG_SYS_SRAM_BASE) && defined(CONFIG_SYS_SRAM_SIZE)
bd->bi_sramstart = CONFIG_SYS_SRAM_BASE;
bd->bi_sramsize = CONFIG_SYS_SRAM_SIZE;
#endif
bd->bi_baudrate = CONFIG_BAUDRATE;
for (i = 0; i < ARRAY_SIZE(init_sequence); i++) {
WATCHDOG_RESET();
if (init_sequence[i]())
hang();
}
WATCHDOG_RESET();
/* The Malloc area is immediately below the monitor copy in RAM */
mem_malloc_init(CONFIG_SYS_MALLOC_BASE, CONFIG_SYS_MALLOC_LEN);
#ifndef CONFIG_SYS_NO_FLASH
WATCHDOG_RESET();
bd->bi_flashsize = flash_init();
#endif
#ifdef CONFIG_CMD_NAND
puts("NAND: ");
nand_init();
#endif
#ifdef CONFIG_GENERIC_MMC
puts("MMC: ");
mmc_initialize(bd);
#endif
WATCHDOG_RESET();
env_relocate();
WATCHDOG_RESET();
stdio_init();
jumptable_init();
console_init_r();
WATCHDOG_RESET();
interrupt_init();
#if defined(CONFIG_BOARD_LATE_INIT)
board_late_init();
#endif
#if defined(CONFIG_CMD_NET)
puts("NET: ");
eth_initialize(bd);
#endif
/* main_loop */
for (;;) {
WATCHDOG_RESET();
main_loop();
}
}
void board_init_f(ulong not_used)
{
bd_t *bd;
init_fnc_t **init_fnc_ptr;
gd = (gd_t *)(CONFIG_SYS_SDRAM_BASE + CONFIG_SYS_GBL_DATA_OFFSET);
bd = (bd_t *)(CONFIG_SYS_SDRAM_BASE + CONFIG_SYS_GBL_DATA_OFFSET
- GENERATED_BD_INFO_SIZE);
#if defined(CONFIG_CMD_FLASH) && !defined(CONFIG_SPL_BUILD)
ulong flash_size = 0;
#endif
asm ("nop"); /* FIXME gd is not initialize - wait */
memset((void *)gd, 0, GENERATED_GBL_DATA_SIZE);
memset((void *)bd, 0, GENERATED_BD_INFO_SIZE);
gd->bd = bd;
gd->baudrate = CONFIG_BAUDRATE;
bd->bi_memstart = CONFIG_SYS_SDRAM_BASE;
bd->bi_memsize = CONFIG_SYS_SDRAM_SIZE;
gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
monitor_flash_len = __end - __text_start;
#ifdef CONFIG_OF_EMBED
/* Get a pointer to the FDT */
gd->fdt_blob = __dtb_dt_begin;
#elif defined CONFIG_OF_SEPARATE
/* FDT is at end of image */
gd->fdt_blob = (void *)__end;
#endif
#ifndef CONFIG_SPL_BUILD
/* Allow the early environment to override the fdt address */
gd->fdt_blob = (void *)getenv_ulong("fdtcontroladdr", 16,
(uintptr_t)gd->fdt_blob);
#endif
/*
* The Malloc area is immediately below the monitor copy in DRAM
* aka CONFIG_SYS_MONITOR_BASE - Note there is no need for reloc_off
* as our monitory code is run from SDRAM
*/
mem_malloc_init(CONFIG_SYS_MALLOC_BASE, CONFIG_SYS_MALLOC_LEN);
serial_initialize();
#ifdef CONFIG_XILINX_TB_WATCHDOG
hw_watchdog_init();
#endif
for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
WATCHDOG_RESET();
if ((*init_fnc_ptr) () != 0)
hang();
}
#ifndef CONFIG_SPL_BUILD
#ifdef CONFIG_OF_CONTROL
/* For now, put this check after the console is ready */
if (fdtdec_prepare_fdt())
panic("** No FDT - please see doc/README.fdt-control");
else
printf("DTB: 0x%x\n", (u32)gd->fdt_blob);
#endif
puts("SDRAM :\n");
printf("\t\tIcache:%s\n", icache_status() ? "ON" : "OFF");
printf("\t\tDcache:%s\n", dcache_status() ? "ON" : "OFF");
printf("\tU-Boot Start:0x%08x\n", CONFIG_SYS_TEXT_BASE);
#if defined(CONFIG_CMD_FLASH)
puts("Flash: ");
bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
flash_size = flash_init();
if (bd->bi_flashstart && flash_size > 0) {
# ifdef CONFIG_SYS_FLASH_CHECKSUM
print_size(flash_size, "");
/*
* Compute and print flash CRC if flashchecksum is set to 'y'
*
* NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
*/
if (getenv_yesno("flashchecksum") == 1) {
printf(" CRC: %08X",
crc32(0, (const u8 *)bd->bi_flashstart,
flash_size)
);
}
putc('\n');
# else /* !CONFIG_SYS_FLASH_CHECKSUM */
print_size(flash_size, "\n");
# endif /* CONFIG_SYS_FLASH_CHECKSUM */
bd->bi_flashsize = flash_size;
bd->bi_flashoffset = bd->bi_flashstart + flash_size;
} else {
puts("Flash init FAILED");
bd->bi_flashstart = 0;
bd->bi_flashsize = 0;
bd->bi_flashoffset = 0;
}
#endif
#ifdef CONFIG_SPI
spi_init();
#endif
/* relocate environment function pointers etc. */
env_relocate();
/* Initialize stdio devices */
stdio_init();
/* Initialize the jump table for applications */
jumptable_init();
/* Initialize the console (after the relocation and devices init) */
console_init_r();
board_init();
/* Initialize from environment */
load_addr = getenv_ulong("loadaddr", 16, load_addr);
#if defined(CONFIG_CMD_NET)
printf("Net: ");
eth_initialize(gd->bd);
uchar enetaddr[6];
eth_getenv_enetaddr("ethaddr", enetaddr);
printf("MAC: %pM\n", enetaddr);
#endif
/* main_loop */
for (;;) {
WATCHDOG_RESET();
main_loop();
}
#endif /* CONFIG_SPL_BUILD */
}
void board_init_r(gd_t *id, ulong dest_addr)
{
ulong malloc_start;
#if !defined(CONFIG_SYS_NO_FLASH)
ulong flash_size;
#endif
gd = id;
gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
bootstage_mark_name(BOOTSTAGE_ID_START_UBOOT_R, "board_init_r");
monitor_flash_len = _end_ofs;/*u-boot.lds中定义*/
/* Enable caches */
enable_caches();
debug("monitor flash len: %08lX\n", monitor_flash_len);
board_init(); /* Setup chipselects//打印一些版本信息，电源管理信息 */
/*
* 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_SERIAL_MULTI
#ifndef CONFIG_CPU_EXYNOS5410
serial_initialize();
#endif
#endif
debug("Now running in RAM - U-Boot at: %08lx\n", dest_addr);
#ifdef CONFIG_LOGBUFFER
logbuff_init_ptrs();
#endif
#ifdef CONFIG_POST
post_output_backlog();
#endif
/* The Malloc area is immediately below the monitor copy in DRAM */
malloc_start = dest_addr - TOTAL_MALLOC_LEN;
mem_malloc_init (malloc_start, TOTAL_MALLOC_LEN);
#ifdef CONFIG_ARCH_EARLY_INIT_R
arch_early_init_r();
#endif
#if !defined(CONFIG_SYS_NO_FLASH)
puts("Flash: ");
flash_size = flash_init();
if (flash_size > 0) {
# ifdef CONFIG_SYS_FLASH_CHECKSUM
char *s = getenv("flashchecksum");
print_size(flash_size, "");
/*
* Compute and print flash CRC if flashchecksum is set to 'y'
*
* NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
*/
if (s && (*s == 'y')) {
printf(" CRC: %08X", crc32(0,
(const unsigned char *) CONFIG_SYS_FLASH_BASE,
flash_size));
}
putc('\n');
# else /* !CONFIG_SYS_FLASH_CHECKSUM */
print_size(flash_size, "\n");
# endif /* CONFIG_SYS_FLASH_CHECKSUM */
} else {
puts(failed);
hang();
}
#endif
#if defined(CONFIG_CMD_NAND)
puts("NAND: ");
nand_init(); /* go init the NAND */
#endif
#if defined(CONFIG_CMD_ONENAND)
onenand_init();
#endif
#ifdef CONFIG_GENERIC_MMC
puts("MMC: ");
mmc_initialize(gd->bd);
#endif
#ifdef CONFIG_HAS_DATAFLASH
AT91F_DataflashInit();
dataflash_print_info();
#endif
/* initialize environment */
env_relocate();
#if defined(CONFIG_CMD_PCI) || defined(CONFIG_PCI)
arm_pci_init();
#endif
stdio_init(); /* get the devices list going. */
jumptable_init();
#if defined(CONFIG_API)
/* Initialize API */
api_init();
#endif
console_init_r(); /* fully init console as a device */
#if defined(CONFIG_ARCH_MISC_INIT)
/* miscellaneous arch dependent initialisations */
arch_misc_init();
#endif
#if defined(CONFIG_MISC_INIT_R)
/* miscellaneous platform dependent initialisations */
misc_init_r();
#endif
/* set up exceptions */
interrupt_init();
/* enable exceptions */
enable_interrupts();
/* Perform network card initialisation if necessary */
#if defined(CONFIG_DRIVER_SMC91111) || defined (CONFIG_DRIVER_LAN91C96)
/* XXX: this needs to be moved to board init */
if (getenv("ethaddr")) {
uchar enetaddr[6];
eth_getenv_enetaddr("ethaddr", enetaddr);
smc_set_mac_addr(enetaddr);
}
#endif /* CONFIG_DRIVER_SMC91111 || CONFIG_DRIVER_LAN91C96 */
/* Initialize from environment */
load_addr = getenv_ulong("loadaddr", 16, load_addr);
#ifdef CONFIG_BOARD_LATE_INIT
board_late_init();//晚点执行的初始化在smdk5420.c
#endif
#ifdef CONFIG_BITBANGMII
bb_miiphy_init();
#endif
#if defined(CONFIG_CMD_NET)
puts("Net: ");
eth_initialize(gd->bd);
#if defined(CONFIG_RESET_PHY_R)
debug("Reset Ethernet PHY\n");
reset_phy();
#endif
#endif
#ifdef CONFIG_POST
post_run(NULL, POST_RAM | post_bootmode_get(0));
#endif
#if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER)
/*
* Export available size of memory for Linux,
* taking into account the protected RAM at top of memory
*/
{
ulong pram = 0;
uchar memsz[32];
#ifdef CONFIG_PRAM
pram = getenv_ulong("pram", 10, CONFIG_PRAM);
#endif
#ifdef CONFIG_LOGBUFFER
#ifndef CONFIG_ALT_LB_ADDR
/* Also take the logbuffer into account (pram is in kB) */
pram += (LOGBUFF_LEN + LOGBUFF_OVERHEAD) / 1024;
#endif
#endif
sprintf((char *)memsz, "%ldk", (gd->ram_size / 1024) - pram);
setenv("mem", (char *)memsz);
}
#endif
/* main_loop() can return to retry autoboot, if so just run it again. */
for (;;) {
main_loop();//进入命令行模式
}
/* NOTREACHED - no way out of command loop except booting */
}
void board_init_r(gd_t *dummy1, ulong dummy2)
{
u32 boot_device;
debug(">>spl:board_init_r()\n");
#ifdef CONFIG_SYS_SPL_MALLOC_START
mem_malloc_init(CONFIG_SYS_SPL_MALLOC_START,
CONFIG_SYS_SPL_MALLOC_SIZE);
#endif
#ifndef CONFIG_PPC
/*
* timer_init() does not exist on PPC systems. The timer is initialized
* and enabled (decrementer) in interrupt_init() here.
*/
timer_init();
#endif
#ifdef CONFIG_SPL_BOARD_INIT
spl_board_init();
#endif
boot_device = spl_boot_device();
debug("boot device - %d\n", boot_device);
switch (boot_device) {
#ifdef CONFIG_SPL_RAM_DEVICE
case BOOT_DEVICE_RAM:
spl_ram_load_image();
break;
#endif
#ifdef CONFIG_SPL_MMC_SUPPORT
case BOOT_DEVICE_MMC1:
case BOOT_DEVICE_MMC2:
case BOOT_DEVICE_MMC2_2:
spl_mmc_load_image();
break;
#endif
#ifdef CONFIG_SPL_NAND_SUPPORT
case BOOT_DEVICE_NAND:
spl_nand_load_image();
break;
#endif
#ifdef CONFIG_SPL_ONENAND_SUPPORT
case BOOT_DEVICE_ONENAND:
spl_onenand_load_image();
break;
#endif
#ifdef CONFIG_SPL_NOR_SUPPORT
case BOOT_DEVICE_NOR:
spl_nor_load_image();
break;
#endif
#ifdef CONFIG_SPL_YMODEM_SUPPORT
case BOOT_DEVICE_UART:
spl_ymodem_load_image();
break;
#endif
#ifdef CONFIG_SPL_SPI_SUPPORT
case BOOT_DEVICE_SPI:
spl_spi_load_image();
break;
#endif
#ifdef CONFIG_SPL_ETH_SUPPORT
case BOOT_DEVICE_CPGMAC:
#ifdef CONFIG_SPL_ETH_DEVICE
spl_net_load_image(CONFIG_SPL_ETH_DEVICE);
#else
spl_net_load_image(NULL);
#endif
break;
#endif
#ifdef CONFIG_SPL_USBETH_SUPPORT
case BOOT_DEVICE_USBETH:
spl_net_load_image("usb_ether");
break;
#endif
#ifdef CONFIG_SPL_USB_SUPPORT
case BOOT_DEVICE_USB:
spl_usb_load_image();
break;
#endif
#ifdef CONFIG_SPL_SATA_SUPPORT
case BOOT_DEVICE_SATA:
spl_sata_load_image();
break;
#endif
default:
debug("SPL: Un-supported Boot Device\n");
hang();
}
switch (spl_image.os) {
case IH_OS_U_BOOT:
debug("Jumping to U-Boot\n");
break;
#ifdef CONFIG_SPL_OS_BOOT
case IH_OS_LINUX:
debug("Jumping to Linux\n");
spl_board_prepare_for_linux();
jump_to_image_linux((void *)CONFIG_SYS_SPL_ARGS_ADDR);
#endif
default:
debug("Unsupported OS image.. Jumping nevertheless..\n");
}
jump_to_image_no_args(&spl_image);
}
void board_init_r(gd_t *dummy1, ulong dummy2)
{
u32 spl_boot_list[] = {
BOOT_DEVICE_NONE,
BOOT_DEVICE_NONE,
BOOT_DEVICE_NONE,
BOOT_DEVICE_NONE,
BOOT_DEVICE_NONE,
};
struct spl_image_info spl_image;
debug(">>spl:board_init_r()\n");
spl_set_bd();
#ifdef CONFIG_SPL_OS_BOOT
dram_init_banksize();
#endif
#if defined(CONFIG_SYS_SPL_MALLOC_START)
mem_malloc_init(CONFIG_SYS_SPL_MALLOC_START,
CONFIG_SYS_SPL_MALLOC_SIZE);
gd->flags |= GD_FLG_FULL_MALLOC_INIT;
#endif
if (!(gd->flags & GD_FLG_SPL_INIT)) {
if (spl_init())
hang();
}
#if !defined(CONFIG_PPC) && !defined(CONFIG_ARCH_MX6)
/*
* timer_init() does not exist on PPC systems. The timer is initialized
* and enabled (decrementer) in interrupt_init() here.
*/
timer_init();
#endif
#ifdef CONFIG_SPL_BOARD_INIT
spl_board_init();
#endif
memset(&spl_image, '\0', sizeof(spl_image));
#ifdef CONFIG_SYS_SPL_ARGS_ADDR
spl_image.arg = (void *)CONFIG_SYS_SPL_ARGS_ADDR;
#endif
board_boot_order(spl_boot_list);
if (boot_from_devices(&spl_image, spl_boot_list,
ARRAY_SIZE(spl_boot_list))) {
puts("SPL: failed to boot from all boot devices\n");
hang();
}
#ifdef CONFIG_CPU_V7M
spl_image.entry_point |= 0x1;
#endif
switch (spl_image.os) {
case IH_OS_U_BOOT:
debug("Jumping to U-Boot\n");
break;
#if CONFIG_IS_ENABLED(ATF)
case IH_OS_ARM_TRUSTED_FIRMWARE:
debug("Jumping to U-Boot via ARM Trusted Firmware\n");
spl_invoke_atf(&spl_image);
break;
#endif
#ifdef CONFIG_SPL_OS_BOOT
case IH_OS_LINUX:
debug("Jumping to Linux\n");
spl_fixup_fdt();
spl_board_prepare_for_linux();
jump_to_image_linux(&spl_image);
#endif
default:
debug("Unsupported OS image.. Jumping nevertheless..\n");
}
#if CONFIG_VAL(SYS_MALLOC_F_LEN) && !defined(CONFIG_SYS_SPL_MALLOC_SIZE)
debug("SPL malloc() used %#lx bytes (%ld KB)\n", gd->malloc_ptr,
gd->malloc_ptr / 1024);
#endif
#ifdef CONFIG_BOOTSTAGE_STASH
int ret;
bootstage_mark_name(BOOTSTAGE_ID_END_SPL, "end_spl");
ret = bootstage_stash((void *)CONFIG_BOOTSTAGE_STASH_ADDR,
CONFIG_BOOTSTAGE_STASH_SIZE);
if (ret)
debug("Failed to stash bootstage: err=%d\n", ret);
#endif
debug("loaded - jumping to U-Boot...\n");
spl_board_prepare_for_boot();
jump_to_image_no_args(&spl_image);
}
/*
* This is the next part if the initialization sequence: we are now
* running from RAM and have a "normal" C environment, i. e. global
* data can be written, BSS has been cleared, the stack size in not
* that critical any more, etc.
*/
void board_init_r(gd_t *id, ulong dest_addr)
{
bd_t *bd;
ulong malloc_start;
#ifndef CONFIG_SYS_NO_FLASH
ulong flash_size;
#endif
gd = id; /* initialize RAM version of global data */
bd = gd->bd;
gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
/* The Malloc area is immediately below the monitor copy in DRAM */
malloc_start = dest_addr - TOTAL_MALLOC_LEN;
#if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)
/*
* The gd->arch.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.
*/
gd->arch.cpu += dest_addr - 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 += dest_addr - CONFIG_SYS_MONITOR_BASE;
#endif
serial_initialize();
debug("Now running in RAM - U-Boot at: %08lx\n", dest_addr);
WATCHDOG_RESET();
/*
* Setup trap handlers
*/
trap_init(dest_addr);
#ifdef CONFIG_ADDR_MAP
init_addr_map();
#endif
#if defined(CONFIG_BOARD_EARLY_INIT_R)
board_early_init_r();
#endif
monitor_flash_len = (ulong)&__init_end - dest_addr;
WATCHDOG_RESET();
#ifdef CONFIG_LOGBUFFER
logbuff_init_ptrs();
#endif
#ifdef CONFIG_POST
post_output_backlog();
#endif
WATCHDOG_RESET();
#if defined(CONFIG_SYS_DELAYED_ICACHE)
icache_enable(); /* it's time to enable the instruction cache */
#endif
#if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500)
unlock_ram_in_cache(); /* it's time to unlock D-cache in e500 */
#endif
#if defined(CONFIG_PCI) && defined(CONFIG_SYS_EARLY_PCI_INIT)
/*
* Do early PCI configuration _before_ the flash gets initialised,
* because PCU ressources are crucial for flash access on some boards.
*/
pci_init();
#endif
#if defined(CONFIG_WINBOND_83C553)
/*
* Initialise the ISA bridge
*/
initialise_w83c553f();
#endif
asm("sync ; isync");
mem_malloc_init(malloc_start, TOTAL_MALLOC_LEN);
#if !defined(CONFIG_SYS_NO_FLASH)
puts("Flash: ");
if (board_flash_wp_on()) {
printf("Uninitialized - Write Protect On\n");
/* Since WP is on, we can't find real size. Set to 0 */
flash_size = 0;
} else if ((flash_size = flash_init()) > 0) {
#ifdef CONFIG_SYS_FLASH_CHECKSUM
print_size(flash_size, "");
/*
* Compute and print flash CRC if flashchecksum is set to 'y'
*
* NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
*/
if (getenv_yesno("flashchecksum") == 1) {
printf(" CRC: %08X",
crc32(0,
(const unsigned char *)
CONFIG_SYS_FLASH_BASE, flash_size)
);
}
putc('\n');
#else /* !CONFIG_SYS_FLASH_CHECKSUM */
print_size(flash_size, "\n");
#endif /* CONFIG_SYS_FLASH_CHECKSUM */
} else {
puts(failed);
hang();
}
/* update start of FLASH memory */
bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
/* 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
#endif /* !CONFIG_SYS_NO_FLASH */
WATCHDOG_RESET();
/* initialize higher level parts of CPU like time base and timers */
cpu_init_r();
WATCHDOG_RESET();
#ifdef CONFIG_SPI
#if !defined(CONFIG_ENV_IS_IN_EEPROM)
spi_init_f();
#endif
spi_init_r();
#endif
#if defined(CONFIG_CMD_NAND)
WATCHDOG_RESET();
puts("NAND: ");
nand_init(); /* go init the NAND */
#endif
#ifdef CONFIG_GENERIC_MMC
/*
* MMC initialization is called before relocating env.
* Thus It is required that operations like pin multiplexer
* be put in board_init.
*/
WATCHDOG_RESET();
puts("MMC: ");
mmc_initialize(bd);
#endif
/* relocate environment function pointers etc. */
env_relocate();
/*
* 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
*/
cpu_secondary_init_r();
/*
* Fill in missing fields of bd_info.
* We do this here, where we have "normal" access to the
* environment; we used to do this still running from ROM,
* where had to use getenv_f(), which can be pretty slow when
* the environment is in EEPROM.
*/
#if defined(CONFIG_SYS_EXTBDINFO)
#if defined(CONFIG_405GP) || defined(CONFIG_405EP)
#if defined(CONFIG_I2CFAST)
/*
* set bi_iic_fast for linux taking environment variable
* "i2cfast" into account
*/
{
if (getenv_yesno("i2cfast") == 1) {
bd->bi_iic_fast[0] = 1;
bd->bi_iic_fast[1] = 1;
}
}
#endif /* CONFIG_I2CFAST */
#endif /* CONFIG_405GP, CONFIG_405EP */
#endif /* CONFIG_SYS_EXTBDINFO */
#if defined(CONFIG_SC3)
sc3_read_eeprom();
#endif
#if defined(CONFIG_ID_EEPROM) || defined(CONFIG_SYS_I2C_MAC_OFFSET)
mac_read_from_eeprom();
#endif
#ifdef CONFIG_CMD_NET
/* kept around for legacy kernels only ... ignore the next section */
eth_getenv_enetaddr("ethaddr", bd->bi_enetaddr);
#ifdef CONFIG_HAS_ETH1
eth_getenv_enetaddr("eth1addr", bd->bi_enet1addr);
#endif
#ifdef CONFIG_HAS_ETH2
eth_getenv_enetaddr("eth2addr", bd->bi_enet2addr);
#endif
#ifdef CONFIG_HAS_ETH3
eth_getenv_enetaddr("eth3addr", bd->bi_enet3addr);
#endif
#ifdef CONFIG_HAS_ETH4
eth_getenv_enetaddr("eth4addr", bd->bi_enet4addr);
#endif
#ifdef CONFIG_HAS_ETH5
eth_getenv_enetaddr("eth5addr", bd->bi_enet5addr);
#endif
#endif /* CONFIG_CMD_NET */
WATCHDOG_RESET();
#if defined(CONFIG_PCI) && !defined(CONFIG_SYS_EARLY_PCI_INIT)
/*
* Do pci configuration
*/
pci_init();
#endif
/** leave this here (after malloc(), environment and PCI are working) **/
/* Initialize stdio devices */
stdio_init();
/* Initialize the jump table for applications */
jumptable_init();
#if defined(CONFIG_API)
/* Initialize API */
api_init();
#endif
/* Initialize the console (after the relocation and devices init) */
console_init_r();
#if defined(CONFIG_MISC_INIT_R)
/* miscellaneous platform dependent initialisations */
misc_init_r();
#endif
#if defined(CONFIG_CMD_KGDB)
WATCHDOG_RESET();
puts("KGDB: ");
kgdb_init();
#endif
debug("U-Boot relocated to %08lx\n", dest_addr);
/*
* Enable Interrupts
*/
interrupt_init();
#if defined(CONFIG_STATUS_LED) && defined(STATUS_LED_BOOT)
status_led_set(STATUS_LED_BOOT, STATUS_LED_BLINKING);
#endif
udelay(20);
/* Initialize from environment */
load_addr = getenv_ulong("loadaddr", 16, load_addr);
WATCHDOG_RESET();
#if defined(CONFIG_CMD_SCSI)
WATCHDOG_RESET();
puts("SCSI: ");
scsi_init();
#endif
#if defined(CONFIG_CMD_DOC)
WATCHDOG_RESET();
puts("DOC: ");
doc_init();
#endif
#ifdef CONFIG_BITBANGMII
bb_miiphy_init();
#endif
#if defined(CONFIG_CMD_NET)
WATCHDOG_RESET();
puts("Net: ");
eth_initialize(bd);
#endif
#if defined(CONFIG_CMD_NET) && defined(CONFIG_RESET_PHY_R)
WATCHDOG_RESET();
debug("Reset Ethernet PHY\n");
reset_phy();
#endif
#ifdef CONFIG_POST
post_run(NULL, POST_RAM | post_bootmode_get(0));
#endif
#if defined(CONFIG_CMD_PCMCIA) \
&& !defined(CONFIG_CMD_IDE)
WATCHDOG_RESET();
puts("PCMCIA:");
pcmcia_init();
#endif
#if defined(CONFIG_CMD_IDE)
WATCHDOG_RESET();
#ifdef CONFIG_IDE_8xx_PCCARD
puts("PCMCIA:");
#else
puts("IDE: ");
#endif
#if defined(CONFIG_START_IDE)
if (board_start_ide())
ide_init();
#else
ide_init();
#endif
#endif
#ifdef CONFIG_LAST_STAGE_INIT
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
#if defined(CONFIG_CMD_BEDBUG)
WATCHDOG_RESET();
bedbug_init();
#endif
#if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER)
/*
* Export available size of memory for Linux,
* taking into account the protected RAM at top of memory
*/
{
ulong pram = 0;
char memsz[32];
#ifdef CONFIG_PRAM
pram = getenv_ulong("pram", 10, CONFIG_PRAM);
#endif
#ifdef CONFIG_LOGBUFFER
#ifndef CONFIG_ALT_LB_ADDR
/* Also take the logbuffer into account (pram is in kB) */
pram += (LOGBUFF_LEN + LOGBUFF_OVERHEAD) / 1024;
#endif
#endif
sprintf(memsz, "%ldk", (ulong) (bd->bi_memsize / 1024) - pram);
setenv("mem", memsz);
}
#endif
#ifdef CONFIG_PS2KBD
puts("PS/2: ");
kbd_init();
#endif
/* Initialization complete - start the monitor */
/* main_loop() can return to retry autoboot, if so just run it again. */
for (;;) {
WATCHDOG_RESET();
main_loop();
}
/* NOTREACHED - no way out of command loop except booting */
}
void board_init_r(gd_t *id, ulong dest_addr)
{
if (id)
gd = id;
gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
#ifdef CONFIG_SERIAL_MULTI
serial_initialize();
#endif
#ifdef CONFIG_POST
post_output_backlog();
#endif
/* The Malloc area is at the top of simulated DRAM */
mem_malloc_init((ulong)gd->ram_buf + gd->ram_size - TOTAL_MALLOC_LEN,
TOTAL_MALLOC_LEN);
/* initialize environment */
env_relocate();
/* IP Address */
gd->bd->bi_ip_addr = getenv_IPaddr("ipaddr");
stdio_init(); /* get the devices list going. */
jumptable_init();
console_init_r(); /* fully init console as a device */
#if defined(CONFIG_DISPLAY_BOARDINFO_LATE)
checkboard();
#endif
#if defined(CONFIG_ARCH_MISC_INIT)
/* miscellaneous arch dependent initialisations */
arch_misc_init();
#endif
#if defined(CONFIG_MISC_INIT_R)
/* miscellaneous platform dependent initialisations */
misc_init_r();
#endif
/* set up exceptions */
interrupt_init();
/* enable exceptions */
enable_interrupts();
#ifdef CONFIG_BOARD_LATE_INIT
board_late_init();
#endif
#ifdef CONFIG_POST
post_run(NULL, POST_RAM | post_bootmode_get(0));
#endif
sandbox_main_loop_init();
/*
* For now, run the main loop. Later we might let this be done
* in the main program.
*/
while (1)
main_loop();
/* NOTREACHED - no way out of command loop except booting */
}
void start_armboot (void)
{
init_fnc_t **init_fnc_ptr;
char *s;
int mmc_exist = 0;
#if defined(CONFIG_VFD) || defined(CONFIG_LCD)
unsigned long addr;
#endif
/* Pointer is writable since we allocated a register for it */
gd = (gd_t*)(_armboot_start - CONFIG_SYS_MALLOC_LEN - sizeof(gd_t));
/* compiler optimization barrier needed for GCC >= 3.4 */
__asm__ __volatile__("": : :"memory");
memset ((void*)gd, 0, sizeof (gd_t));
gd->bd = (bd_t*)((char*)gd - sizeof(bd_t));
memset (gd->bd, 0, sizeof (bd_t));
// gd->flags |= GD_FLG_RELOC;
monitor_flash_len = _bss_start - _armboot_start;
for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
if ((*init_fnc_ptr)() != 0) {
hang ();
}
}
/* armboot_start is defined in the board-specific linker script */
mem_malloc_init (_armboot_start - CONFIG_SYS_MALLOC_LEN,
CONFIG_SYS_MALLOC_LEN);
#ifndef CONFIG_SYS_NO_FLASH
/* configure available FLASH banks */
display_flash_config (flash_init ());
#endif /* CONFIG_SYS_NO_FLASH */
#ifdef CONFIG_VFD
# ifndef PAGE_SIZE
# define PAGE_SIZE 4096
# endif
/*
* reserve memory for VFD display (always full pages)
*/
/* bss_end is defined in the board-specific linker script */
addr = (_bss_end + (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1);
vfd_setmem (addr);
gd->fb_base = addr;
#endif /* CONFIG_VFD */
#ifdef CONFIG_LCD
/* board init may have inited fb_base */
if (!gd->fb_base) {
# ifndef PAGE_SIZE
# define PAGE_SIZE 4096
# endif
/*
* reserve memory for LCD display (always full pages)
*/
/* bss_end is defined in the board-specific linker script */
addr = (_bss_end + (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1);
lcd_setmem (addr);
gd->fb_base = addr;
}
#endif /* CONFIG_LCD */
#if defined(CONFIG_CMD_NAND)
puts ("NAND: ");
nand_init(); /* go init the NAND */
#endif
#if defined(CONFIG_CMD_ONENAND)
onenand_init();
#endif
#ifdef CONFIG_GENERIC_MMC
puts ("MMC: ");
mmc_exist = mmc_initialize (gd->bd);
if (mmc_exist != 0)
{
puts ("0 MB\n");
}
#endif
#ifdef CONFIG_HAS_DATAFLASH
AT91F_DataflashInit();
dataflash_print_info();
#endif
/* initialize environment */
env_relocate ();
#ifdef CONFIG_VFD
/* must do this after the framebuffer is allocated */
drv_vfd_init();
#endif /* CONFIG_VFD */
#ifdef CONFIG_SERIAL_MULTI
serial_initialize();
#endif
/* IP Address */
gd->bd->bi_ip_addr = getenv_IPaddr ("ipaddr");
stdio_init (); /* get the devices list going. */
jumptable_init ();
#if defined(CONFIG_API)
/* Initialize API */
api_init ();
#endif
console_init_r (); /* fully init console as a device */
#if defined(CONFIG_ARCH_MISC_INIT)
/* miscellaneous arch dependent initialisations */
arch_misc_init ();
#endif
#if defined(CONFIG_MISC_INIT_R)
/* miscellaneous platform dependent initialisations */
misc_init_r ();
#endif
/* enable exceptions */
enable_interrupts ();
/* Perform network card initialisation if necessary */
#ifdef CONFIG_DRIVER_TI_EMAC
/* XXX: this needs to be moved to board init */
extern void davinci_eth_set_mac_addr (const u_int8_t *addr);
if (getenv ("ethaddr")) {
uchar enetaddr[6];
eth_getenv_enetaddr("ethaddr", enetaddr);
davinci_eth_set_mac_addr(enetaddr);
}
#endif
#if defined(CONFIG_DRIVER_SMC91111) || defined (CONFIG_DRIVER_LAN91C96)
/* XXX: this needs to be moved to board init */
if (getenv ("ethaddr")) {
uchar enetaddr[6];
eth_getenv_enetaddr("ethaddr", enetaddr);
smc_set_mac_addr(enetaddr);
}
#endif /* CONFIG_DRIVER_SMC91111 || CONFIG_DRIVER_LAN91C96 */
/* Initialize from environment */
if ((s = getenv ("loadaddr")) != NULL) {
load_addr = simple_strtoul (s, NULL, 16);
}
#if defined(CONFIG_CMD_NET)
if ((s = getenv ("bootfile")) != NULL) {
copy_filename (BootFile, s, sizeof (BootFile));
}
#endif
#ifdef BOARD_LATE_INIT
board_late_init ();
#endif
#ifdef CONFIG_BITBANGMII
bb_miiphy_init();
#endif
#if defined(CONFIG_CMD_NET)
#if defined(CONFIG_NET_MULTI)
puts ("Net: ");
#endif
eth_initialize(gd->bd);
#if defined(CONFIG_RESET_PHY_R)
debug ("Reset Ethernet PHY\n");
reset_phy();
#endif
#endif
/* main_loop() can return to retry autoboot, if so just run it again. */
for (;;) {
main_loop ();
}
/* NOTREACHED - no way out of command loop except booting */
}
void board_init_r(gd_t *dummy1, ulong dummy2)
{
u32 boot_device;
debug(">>spl:board_init_r()\n");
#if defined(CONFIG_SYS_SPL_MALLOC_START)
mem_malloc_init(CONFIG_SYS_SPL_MALLOC_START,
CONFIG_SYS_SPL_MALLOC_SIZE);
gd->flags |= GD_FLG_FULL_MALLOC_INIT;
#endif
if (!(gd->flags & GD_FLG_SPL_INIT)) {
if (spl_init())
hang();
}
#ifndef CONFIG_PPC
/*
* timer_init() does not exist on PPC systems. The timer is initialized
* and enabled (decrementer) in interrupt_init() here.
*/
timer_init();
#endif
#ifdef CONFIG_SPL_BOARD_INIT
spl_board_init();
#endif
boot_device = spl_boot_device();
debug("boot device - %d\n", boot_device);
switch (boot_device) {
#ifdef CONFIG_SPL_RAM_DEVICE
case BOOT_DEVICE_RAM:
spl_ram_load_image();
break;
#endif
#ifdef CONFIG_SPL_MMC_SUPPORT
case BOOT_DEVICE_MMC1:
case BOOT_DEVICE_MMC2:
case BOOT_DEVICE_MMC2_2:
spl_mmc_load_image();
break;
#endif
#ifdef CONFIG_SPL_NAND_SUPPORT
case BOOT_DEVICE_NAND:
spl_nand_load_image();
break;
#endif
#ifdef CONFIG_SPL_ONENAND_SUPPORT
case BOOT_DEVICE_ONENAND:
spl_onenand_load_image();
break;
#endif
#ifdef CONFIG_SPL_NOR_SUPPORT
case BOOT_DEVICE_NOR:
spl_nor_load_image();
break;
#endif
#ifdef CONFIG_SPL_YMODEM_SUPPORT
case BOOT_DEVICE_UART:
spl_ymodem_load_image();
break;
#endif
#ifdef CONFIG_SPL_SPI_SUPPORT
case BOOT_DEVICE_SPI:
spl_spi_load_image();
break;
#endif
#ifdef CONFIG_SPL_ETH_SUPPORT
case BOOT_DEVICE_CPGMAC:
#ifdef CONFIG_SPL_ETH_DEVICE
spl_net_load_image(CONFIG_SPL_ETH_DEVICE);
#else
spl_net_load_image(NULL);
#endif
break;
#endif
#ifdef CONFIG_SPL_USBETH_SUPPORT
case BOOT_DEVICE_USBETH:
spl_net_load_image("usb_ether");
break;
#endif
#ifdef CONFIG_SPL_USB_SUPPORT
case BOOT_DEVICE_USB:
spl_usb_load_image();
break;
#endif
#ifdef CONFIG_SPL_SATA_SUPPORT
case BOOT_DEVICE_SATA:
spl_sata_load_image();
break;
#endif
#ifdef CONFIG_SPL_BOARD_LOAD_IMAGE
case BOOT_DEVICE_BOARD:
spl_board_load_image();
break;
#endif
default:
#if defined(CONFIG_SPL_SERIAL_SUPPORT) && defined(CONFIG_SPL_LIBCOMMON_SUPPORT)
puts("SPL: Unsupported Boot Device!\n");
#endif
hang();
}
switch (spl_image.os) {
case IH_OS_U_BOOT:
debug("Jumping to U-Boot\n");
break;
#ifdef CONFIG_SPL_OS_BOOT
case IH_OS_LINUX:
debug("Jumping to Linux\n");
spl_board_prepare_for_linux();
jump_to_image_linux((void *)CONFIG_SYS_SPL_ARGS_ADDR);
#endif
default:
debug("Unsupported OS image.. Jumping nevertheless..\n");
}
#if defined(CONFIG_SYS_MALLOC_F_LEN) && !defined(CONFIG_SYS_SPL_MALLOC_SIZE)
debug("SPL malloc() used %#lx bytes (%ld KB)\n", gd->malloc_ptr,
gd->malloc_ptr / 1024);
#endif
debug("loaded - jumping to U-Boot...");
jump_to_image_no_args(&spl_image);
}
void board_init_r(gd_t *dummy1, ulong dummy2)
{
u32 spl_boot_list[] = {
BOOT_DEVICE_NONE,
BOOT_DEVICE_NONE,
BOOT_DEVICE_NONE,
BOOT_DEVICE_NONE,
BOOT_DEVICE_NONE,
};
struct spl_image_info spl_image;
debug(">>spl:board_init_r()\n");
#if defined(CONFIG_SYS_SPL_MALLOC_START)
mem_malloc_init(CONFIG_SYS_SPL_MALLOC_START,
CONFIG_SYS_SPL_MALLOC_SIZE);
gd->flags |= GD_FLG_FULL_MALLOC_INIT;
#endif
if (!(gd->flags & GD_FLG_SPL_INIT)) {
if (spl_init())
hang();
}
#ifndef CONFIG_PPC
/*
* timer_init() does not exist on PPC systems. The timer is initialized
* and enabled (decrementer) in interrupt_init() here.
*/
timer_init();
#endif
#ifdef CONFIG_SPL_BOARD_INIT
spl_board_init();
#endif
memset(&spl_image, '\0', sizeof(spl_image));
board_boot_order(spl_boot_list);
if (boot_from_devices(&spl_image, spl_boot_list,
ARRAY_SIZE(spl_boot_list))) {
puts("SPL: failed to boot from all boot devices\n");
hang();
}
switch (spl_image.os) {
case IH_OS_U_BOOT:
debug("Jumping to U-Boot\n");
break;
#ifdef CONFIG_SPL_OS_BOOT
case IH_OS_LINUX:
debug("Jumping to Linux\n");
spl_board_prepare_for_linux();
jump_to_image_linux(&spl_image,
(void *)CONFIG_SYS_SPL_ARGS_ADDR);
#endif
default:
debug("Unsupported OS image.. Jumping nevertheless..\n");
}
#if defined(CONFIG_SYS_MALLOC_F_LEN) && !defined(CONFIG_SYS_SPL_MALLOC_SIZE)
debug("SPL malloc() used %#lx bytes (%ld KB)\n", gd->malloc_ptr,
gd->malloc_ptr / 1024);
#endif
debug("loaded - jumping to U-Boot...\n");
spl_board_prepare_for_boot();
jump_to_image_no_args(&spl_image);
}
void board_init (void)
{
bd_t *bd;
init_fnc_t **init_fnc_ptr;
static gd_t gd_data;
static bd_t bd_data;
/* Pointer is writable since we allocated a register for it. */
gd = &gd_data;
/* compiler optimization barrier needed for GCC >= 3.4 */
__asm__ __volatile__("": : :"memory");
gd->bd = &bd_data;
gd->baudrate = CONFIG_BAUDRATE;
gd->cpu_clk = CONFIG_SYS_CLK_FREQ;
bd = gd->bd;
bd->bi_memstart = CONFIG_SYS_SDRAM_BASE;
bd->bi_memsize = CONFIG_SYS_SDRAM_SIZE;
#ifndef CONFIG_SYS_NO_FLASH
bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
#endif
#if defined(CONFIG_SYS_SRAM_BASE) && defined(CONFIG_SYS_SRAM_SIZE)
bd->bi_sramstart= CONFIG_SYS_SRAM_BASE;
bd->bi_sramsize = CONFIG_SYS_SRAM_SIZE;
#endif
bd->bi_baudrate = CONFIG_BAUDRATE;
for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
WATCHDOG_RESET ();
if ((*init_fnc_ptr) () != 0) {
hang ();
}
}
WATCHDOG_RESET ();
/* The Malloc area is immediately below the monitor copy in RAM */
mem_malloc_init(CONFIG_SYS_MALLOC_BASE, CONFIG_SYS_MALLOC_LEN);
#ifndef CONFIG_SYS_NO_FLASH
WATCHDOG_RESET ();
bd->bi_flashsize = flash_init();
#endif
#ifdef CONFIG_CMD_NAND
puts("NAND: ");
nand_init();
#endif
#ifdef CONFIG_GENERIC_MMC
puts("MMC: ");
mmc_initialize(bd);
#endif
WATCHDOG_RESET ();
env_relocate();
WATCHDOG_RESET ();
stdio_init();
jumptable_init();
console_init_r();
WATCHDOG_RESET ();
interrupt_init ();
#if defined(CONFIG_BOARD_LATE_INIT)
board_late_init ();
#endif
#if defined(CONFIG_CMD_NET)
puts ("Net: ");
eth_initialize (bd);
#endif
/* main_loop */
for (;;) {
WATCHDOG_RESET ();
main_loop ();
}
}
void board_init_f(ulong bootflag)
{
cmd_tbl_t *cmdtp;
bd_t *bd;
unsigned char *s;
init_fnc_t **init_fnc_ptr;
int j;
int i;
char *e;
#ifndef CONFIG_SYS_NO_FLASH
ulong flash_size;
#endif
gd = (gd_t *) (CONFIG_SYS_GBL_DATA_OFFSET);
/* Clear initial global data */
memset((void *)gd, 0, sizeof(gd_t));
gd->bd = (bd_t *) (gd + 1); /* At end of global data */
gd->baudrate = CONFIG_BAUDRATE;
gd->cpu_clk = CONFIG_SYS_CLK_FREQ;
bd = gd->bd;
bd->bi_memstart = CONFIG_SYS_RAM_BASE;
bd->bi_memsize = CONFIG_SYS_RAM_SIZE;
bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
#if defined(CONFIG_SYS_SRAM_BASE) && defined(CONFIG_SYS_SRAM_SIZE)
bd->bi_sramstart = CONFIG_SYS_SRAM_BASE;
bd->bi_sramsize = CONFIG_SYS_SRAM_SIZE;
#endif
bd->bi_baudrate = CONFIG_BAUDRATE;
bd->bi_bootflags = bootflag; /* boot / reboot flag (for LynxOS) */
gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
gd->reloc_off = CONFIG_SYS_RELOC_MONITOR_BASE - CONFIG_SYS_MONITOR_BASE;
for (init_fnc_ptr = init_sequence, j = 0; *init_fnc_ptr;
++init_fnc_ptr, j++) {
#ifdef DEBUG_INIT_SEQUENCE
if (j > 9)
str_init_seq[9] = '0' + (j / 10);
str_init_seq[10] = '0' + (j - (j / 10) * 10);
serial_puts(str_init_seq);
#endif
if ((*init_fnc_ptr + gd->reloc_off) () != 0) {
hang();
}
}
#ifdef DEBUG_INIT_SEQUENCE
serial_puts(str_init_seq_done);
#endif
/*
* 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):
* - kernel log buffer
* - protected RAM
* - LCD framebuffer
* - monitor code
* - board info struct
*/
#ifdef DEBUG_MEM_LAYOUT
printf("CONFIG_SYS_MONITOR_BASE: 0x%lx\n", CONFIG_SYS_MONITOR_BASE);
printf("CONFIG_ENV_ADDR: 0x%lx\n", CONFIG_ENV_ADDR);
printf("CONFIG_SYS_RELOC_MONITOR_BASE: 0x%lx (%d)\n", CONFIG_SYS_RELOC_MONITOR_BASE,
CONFIG_SYS_MONITOR_LEN);
printf("CONFIG_SYS_MALLOC_BASE: 0x%lx (%d)\n", CONFIG_SYS_MALLOC_BASE,
CONFIG_SYS_MALLOC_LEN);
printf("CONFIG_SYS_INIT_SP_OFFSET: 0x%lx (%d)\n", CONFIG_SYS_INIT_SP_OFFSET,
CONFIG_SYS_STACK_SIZE);
printf("CONFIG_SYS_PROM_OFFSET: 0x%lx (%d)\n", CONFIG_SYS_PROM_OFFSET,
CONFIG_SYS_PROM_SIZE);
printf("CONFIG_SYS_GBL_DATA_OFFSET: 0x%lx (%d)\n", CONFIG_SYS_GBL_DATA_OFFSET,
CONFIG_SYS_GBL_DATA_SIZE);
#endif
#ifdef CONFIG_POST
post_bootmode_init();
post_run(NULL, POST_ROM | post_bootmode_get(0));
#endif
/*
* We have to relocate the command table manually
*/
for (cmdtp = &__u_boot_cmd_start; cmdtp != &__u_boot_cmd_end; cmdtp++) {
ulong addr;
addr = (ulong) (cmdtp->cmd) + gd->reloc_off;
#if DEBUG_COMMANDS
printf("Command \"%s\": 0x%08lx => 0x%08lx\n",
cmdtp->name, (ulong) (cmdtp->cmd), addr);
#endif
cmdtp->cmd =
(int (*)(struct cmd_tbl_s *, int, int, char *[]))addr;
addr = (ulong) (cmdtp->name) + gd->reloc_off;
cmdtp->name = (char *)addr;
if (cmdtp->usage) {
addr = (ulong) (cmdtp->usage) + gd->reloc_off;
cmdtp->usage = (char *)addr;
}
#ifdef CONFIG_SYS_LONGHELP
if (cmdtp->help) {
addr = (ulong) (cmdtp->help) + gd->reloc_off;
cmdtp->help = (char *)addr;
}
#endif
}
#if defined(CONFIG_CMD_AMBAPP) && defined(CONFIG_SYS_AMBAPP_PRINT_ON_STARTUP)
puts("AMBA:\n");
do_ambapp_print(NULL, 0, 0, NULL);
#endif
/* initialize higher level parts of CPU like time base and timers */
cpu_init_r();
/* start timer */
timer_interrupt_init();
/*
* Enable Interrupts before any calls to udelay,
* the flash driver may use udelay resulting in
* a hang if not timer0 IRQ is enabled.
*/
interrupt_init();
/* The Malloc area is immediately below the monitor copy in RAM */
mem_malloc_init(CONFIG_SYS_MALLOC_BASE,
CONFIG_SYS_MALLOC_END - CONFIG_SYS_MALLOC_BASE);
malloc_bin_reloc();
#if !defined(CONFIG_SYS_NO_FLASH)
puts("FLASH: ");
if ((flash_size = flash_init()) > 0) {
# ifdef CONFIG_SYS_FLASH_CHECKSUM
print_size(flash_size, "");
/*
* Compute and print flash CRC if flashchecksum is set to 'y'
*
* NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
*/
s = getenv("flashchecksum");
if (s && (*s == 'y')) {
printf(" CRC: %08lX",
crc32(0, (const unsigned char *)CONFIG_SYS_FLASH_BASE,
flash_size)
);
}
putc('\n');
# else /* !CONFIG_SYS_FLASH_CHECKSUM */
print_size(flash_size, "\n");
# endif /* CONFIG_SYS_FLASH_CHECKSUM */
} else {
puts(failed);
hang();
}
bd->bi_flashstart = CONFIG_SYS_FLASH_BASE; /* update start of FLASH memory */
bd->bi_flashsize = flash_size; /* size of FLASH memory (final value) */
#if CONFIG_SYS_MONITOR_BASE == CONFIG_SYS_FLASH_BASE
bd->bi_flashoffset = monitor_flash_len; /* reserved area for startup monitor */
#else
bd->bi_flashoffset = 0;
#endif
#else /* CONFIG_SYS_NO_FLASH */
bd->bi_flashsize = 0;
bd->bi_flashstart = 0;
bd->bi_flashoffset = 0;
#endif /* !CONFIG_SYS_NO_FLASH */
#ifdef CONFIG_SPI
# if !defined(CONFIG_ENV_IS_IN_EEPROM)
spi_init_f();
# endif
spi_init_r();
#endif
/* relocate environment function pointers etc. */
env_relocate();
#if defined(CONFIG_BOARD_LATE_INIT)
board_late_init();
#endif
#ifdef CONFIG_ID_EEPROM
mac_read_from_eeprom();
#endif
/* IP Address */
bd->bi_ip_addr = getenv_IPaddr("ipaddr");
#if defined(CONFIG_PCI)
/*
* Do pci configuration
*/
pci_init();
#endif
/* Initialize stdio devices */
stdio_init();
/* Initialize the jump table for applications */
jumptable_init();
/* Initialize the console (after the relocation and devices init) */
console_init_r();
#ifdef CONFIG_SERIAL_SOFTWARE_FIFO
serial_buffered_init();
#endif
#ifdef CONFIG_STATUS_LED
status_led_set(STATUS_LED_BOOT, STATUS_LED_BLINKING);
#endif
udelay(20);
set_timer(0);
/* Initialize from environment */
if ((s = getenv("loadaddr")) != NULL) {
load_addr = simple_strtoul(s, NULL, 16);
}
#if defined(CONFIG_CMD_NET)
if ((s = getenv("bootfile")) != NULL) {
copy_filename(BootFile, s, sizeof(BootFile));
}
#endif /* CONFIG_CMD_NET */
WATCHDOG_RESET();
#if defined(CONFIG_CMD_DOC)
WATCHDOG_RESET();
puts("DOC: ");
doc_init();
#endif
#ifdef CONFIG_BITBANGMII
bb_miiphy_init();
#endif
#if defined(CONFIG_CMD_NET)
#if defined(CONFIG_NET_MULTI)
WATCHDOG_RESET();
puts("Net: ");
#endif
eth_initialize(bd);
#endif
#if defined(CONFIG_CMD_NET) && defined(CONFIG_RESET_PHY_R)
WATCHDOG_RESET();
debug("Reset Ethernet PHY\n");
reset_phy();
#endif
#ifdef CONFIG_POST
post_run(NULL, POST_RAM | post_bootmode_get(0));
#endif
#if defined(CONFIG_CMD_IDE)
WATCHDOG_RESET();
puts("IDE: ");
ide_init();
#endif /* CONFIG_CMD_IDE */
#ifdef CONFIG_LAST_STAGE_INIT
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_PS2KBD
puts("PS/2: ");
kbd_init();
#endif
prom_init();
/* main_loop */
for (;;) {
WATCHDOG_RESET();
main_loop();
}
}
int blackfin_mem_malloc_init(void)
{
mem_malloc_init((void *)(MALLOC_BASE),
(void *)(MALLOC_BASE + MALLOC_SIZE));
return 0;
}
