upstream u-boot with additional patches for our devices/boards:
https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ;
Gbit ethernet patch for some LIME2 revisions ;
with SPI flash support
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
501 lines
12 KiB
501 lines
12 KiB
/* SPARC Board initialization
|
|
*
|
|
* (C) Copyright 2000-2006
|
|
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
|
|
*
|
|
* (C) Copyright 2007
|
|
* Daniel Hellstrom, Gaisler Research, daniel@gaisler.com.
|
|
*
|
|
* See file CREDITS for list of people who contributed to this
|
|
* project.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License as
|
|
* published by the Free Software Foundation; either version 2 of
|
|
* the License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
|
|
* MA 02111-1307 USA
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <command.h>
|
|
#include <malloc.h>
|
|
#include <devices.h>
|
|
#include <config.h>
|
|
#if defined(CONFIG_CMD_IDE)
|
|
#include <ide.h>
|
|
#endif
|
|
#ifdef CONFIG_STATUS_LED
|
|
#include <status_led.h>
|
|
#endif
|
|
#include <net.h>
|
|
#include <serial.h>
|
|
#include <version.h>
|
|
#if defined(CONFIG_POST)
|
|
#include <post.h>
|
|
#endif
|
|
#ifdef CONFIG_PS2KBD
|
|
#include <keyboard.h>
|
|
#endif
|
|
#ifdef CONFIG_CMD_AMBAPP
|
|
#include <ambapp.h>
|
|
#endif
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
/* Debug options
|
|
#define DEBUG_INIT_SEQUENCE
|
|
#define DEBUG_MEM_LAYOUT
|
|
#define DEBUG_COMMANDS
|
|
*/
|
|
|
|
extern void timer_interrupt_init(void);
|
|
extern void malloc_bin_reloc(void);
|
|
extern int do_ambapp_print(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]);
|
|
extern int prom_init(void);
|
|
|
|
#if defined(CONFIG__CMD_DOC)
|
|
void doc_init(void);
|
|
#endif
|
|
|
|
#if !defined(CONFIG_SYS_NO_FLASH)
|
|
static char *failed = "*** failed ***\n";
|
|
#endif
|
|
|
|
#include <environment.h>
|
|
|
|
ulong monitor_flash_len;
|
|
|
|
/*
|
|
* Begin and End of memory area for malloc(), and current "brk"
|
|
*/
|
|
static ulong mem_malloc_start = 0;
|
|
static ulong mem_malloc_end = 0;
|
|
static ulong mem_malloc_brk = 0;
|
|
|
|
/************************************************************************
|
|
* Utilities *
|
|
************************************************************************
|
|
*/
|
|
|
|
/*
|
|
* The Malloc area is immediately below the monitor copy in RAM
|
|
*/
|
|
static void mem_malloc_init(void)
|
|
{
|
|
mem_malloc_start = CONFIG_SYS_MALLOC_BASE;
|
|
mem_malloc_end = CONFIG_SYS_MALLOC_END;
|
|
mem_malloc_brk = mem_malloc_start;
|
|
memset((void *)mem_malloc_start, 0, mem_malloc_end - mem_malloc_start);
|
|
}
|
|
|
|
void *sbrk(ptrdiff_t increment)
|
|
{
|
|
ulong old = mem_malloc_brk;
|
|
ulong new = old + increment;
|
|
|
|
if ((new < mem_malloc_start) || (new > mem_malloc_end)) {
|
|
return (NULL);
|
|
}
|
|
mem_malloc_brk = new;
|
|
return ((void *)old);
|
|
}
|
|
|
|
/***********************************************************************/
|
|
|
|
/************************************************************************
|
|
* Init Utilities *
|
|
************************************************************************
|
|
* Some of this code should be moved into the core functions,
|
|
* but let's get it working (again) first...
|
|
*/
|
|
|
|
static int init_baudrate(void)
|
|
{
|
|
char tmp[64]; /* long enough for environment variables */
|
|
int i = getenv_r("baudrate", tmp, sizeof(tmp));
|
|
|
|
gd->baudrate = (i > 0)
|
|
? (int)simple_strtoul(tmp, NULL, 10)
|
|
: CONFIG_BAUDRATE;
|
|
return (0);
|
|
}
|
|
|
|
/***********************************************************************/
|
|
|
|
/*
|
|
* All attempts to come up with a "common" initialization sequence
|
|
* that works for all boards and architectures failed: some of the
|
|
* requirements are just _too_ different. To get rid of the resulting
|
|
* mess of board dependend #ifdef'ed code we now make the whole
|
|
* initialization sequence configurable to the user.
|
|
*
|
|
* The requirements for any new initalization function is simple: it
|
|
* receives a pointer to the "global data" structure as it's only
|
|
* argument, and returns an integer return code, where 0 means
|
|
* "continue" and != 0 means "fatal error, hang the system".
|
|
*/
|
|
typedef int (init_fnc_t) (void);
|
|
|
|
#define WATCHDOG_RESET(x)
|
|
|
|
/************************************************************************
|
|
* Initialization sequence *
|
|
************************************************************************
|
|
*/
|
|
|
|
init_fnc_t *init_sequence[] = {
|
|
|
|
#if defined(CONFIG_BOARD_EARLY_INIT_F)
|
|
board_early_init_f,
|
|
#endif
|
|
serial_init,
|
|
|
|
init_timebase,
|
|
|
|
#if defined(CONFIG_CMD_AMBAPP)
|
|
ambapp_init_reloc,
|
|
#endif
|
|
|
|
env_init,
|
|
|
|
init_baudrate,
|
|
|
|
console_init_f,
|
|
display_options,
|
|
|
|
checkcpu,
|
|
checkboard,
|
|
#if defined(CONFIG_MISC_INIT_F)
|
|
misc_init_f,
|
|
#endif
|
|
|
|
#ifdef CONFIG_POST
|
|
post_init_f,
|
|
#endif
|
|
|
|
NULL, /* Terminate this list,
|
|
* beware: this list will be relocated
|
|
* which means that NULL will become
|
|
* NULL+RELOC_OFFSET. We simply make
|
|
* NULL be -RELOC_OFFSET instead.
|
|
*/
|
|
};
|
|
|
|
/************************************************************************
|
|
*
|
|
* This is the SPARC board initialization routine, running from RAM.
|
|
*
|
|
************************************************************************
|
|
*/
|
|
#ifdef DEBUG_INIT_SEQUENCE
|
|
char *str_init_seq = "INIT_SEQ 00\n";
|
|
char *str_init_seq_done = "\n\rInit sequence done...\r\n\r\n";
|
|
#endif
|
|
|
|
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();
|
|
|
|
/* initialize malloc() area */
|
|
mem_malloc_init();
|
|
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 devices */
|
|
devices_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
|
|
|
|
#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();
|
|
}
|
|
|
|
}
|
|
|
|
void hang(void)
|
|
{
|
|
puts("### ERROR ### Please RESET the board ###\n");
|
|
#ifdef CONFIG_SHOW_BOOT_PROGRESS
|
|
show_boot_progress(-30);
|
|
#endif
|
|
for (;;) ;
|
|
}
|
|
|
|
/************************************************************************/
|
|
|