u-boot/lib_ppc/board.c
Peter Tyser f9476902b7 mpc85xx, mpc86xx: Fix gd->cpu pointer after relocation
The gd->cpu pointer is set to an address located in flash when the
probecpu() function is called while U-Boot is executing from flash.
This pointer needs to be updated to point to an address in RAM after
relocation has occurred otherwise Linux may not be able to boot due to
"fdt board" crashing if flash has been erased or changed.

This bug was introduced in commit
a0e2066f39.

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Reported-by: Ed Swarthout <Ed.Swarthout@freescale.com>
Tested-by: Kumar Gala <galak@kernel.crashing.org>
Tested on MPC8527DS.
Tested by: Ed Swarthout <Ed.Swarthout@freescale.com>
2009-12-15 22:45:51 +01:00

1085 lines
26 KiB
C

/*
* (C) Copyright 2000-2006
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* 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 <watchdog.h>
#include <command.h>
#include <malloc.h>
#include <stdio_dev.h>
#ifdef CONFIG_8xx
#include <mpc8xx.h>
#endif
#ifdef CONFIG_5xx
#include <mpc5xx.h>
#endif
#ifdef CONFIG_MPC5xxx
#include <mpc5xxx.h>
#endif
#if defined(CONFIG_CMD_IDE)
#include <ide.h>
#endif
#if defined(CONFIG_CMD_SCSI)
#include <scsi.h>
#endif
#if defined(CONFIG_CMD_KGDB)
#include <kgdb.h>
#endif
#ifdef CONFIG_STATUS_LED
#include <status_led.h>
#endif
#include <net.h>
#ifdef CONFIG_GENERIC_MMC
#include <mmc.h>
#endif
#include <serial.h>
#ifdef CONFIG_SYS_ALLOC_DPRAM
#if !defined(CONFIG_CPM2)
#include <commproc.h>
#endif
#endif
#include <version.h>
#if defined(CONFIG_BAB7xx)
#include <w83c553f.h>
#endif
#include <dtt.h>
#if defined(CONFIG_POST)
#include <post.h>
#endif
#if defined(CONFIG_LOGBUFFER)
#include <logbuff.h>
#endif
#if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500)
#include <asm/cache.h>
#endif
#ifdef CONFIG_PS2KBD
#include <keyboard.h>
#endif
#ifdef CONFIG_ADDR_MAP
#include <asm/mmu.h>
#endif
#ifdef CONFIG_MP
#include <asm/mp.h>
#endif
#ifdef CONFIG_BITBANGMII
#include <miiphy.h>
#endif
#ifdef CONFIG_SYS_UPDATE_FLASH_SIZE
extern int update_flash_size (int flash_size);
#endif
#if defined(CONFIG_SC3)
extern void sc3_read_eeprom(void);
#endif
#if defined(CONFIG_CMD_DOC)
void doc_init (void);
#endif
#if defined(CONFIG_HARD_I2C) || \
defined(CONFIG_SOFT_I2C)
#include <i2c.h>
#endif
#include <spi.h>
#include <nand.h>
static char *failed = "*** failed ***\n";
#if defined(CONFIG_OXC) || defined(CONFIG_PCU_E) || defined(CONFIG_RMU)
extern flash_info_t flash_info[];
#endif
#if defined(CONFIG_START_IDE)
extern int board_start_ide(void);
#endif
#include <environment.h>
DECLARE_GLOBAL_DATA_PTR;
#if defined(CONFIG_ENV_IS_EMBEDDED)
#define TOTAL_MALLOC_LEN CONFIG_SYS_MALLOC_LEN
#elif ( ((CONFIG_ENV_ADDR+CONFIG_ENV_SIZE) < CONFIG_SYS_MONITOR_BASE) || \
(CONFIG_ENV_ADDR >= (CONFIG_SYS_MONITOR_BASE + CONFIG_SYS_MONITOR_LEN)) ) || \
defined(CONFIG_ENV_IS_IN_NVRAM)
#define TOTAL_MALLOC_LEN (CONFIG_SYS_MALLOC_LEN + CONFIG_ENV_SIZE)
#else
#define TOTAL_MALLOC_LEN CONFIG_SYS_MALLOC_LEN
#endif
#if !defined(CONFIG_SYS_MEM_TOP_HIDE)
#define CONFIG_SYS_MEM_TOP_HIDE 0
#endif
extern ulong __init_end;
extern ulong _end;
ulong monitor_flash_len;
#if defined(CONFIG_CMD_BEDBUG)
#include <bedbug/type.h>
#endif
/************************************************************************
* Utilities *
************************************************************************
*/
/*
* 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);
/************************************************************************
* 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);
}
/***********************************************************************/
void __board_add_ram_info(int use_default)
{
/* please define platform specific board_add_ram_info() */
}
void board_add_ram_info(int) __attribute__((weak, alias("__board_add_ram_info")));
static int init_func_ram (void)
{
#ifdef CONFIG_BOARD_TYPES
int board_type = gd->board_type;
#else
int board_type = 0; /* use dummy arg */
#endif
puts ("DRAM: ");
if ((gd->ram_size = initdram (board_type)) > 0) {
print_size (gd->ram_size, "");
board_add_ram_info(0);
putc('\n');
return (0);
}
puts (failed);
return (1);
}
/***********************************************************************/
#if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
static int init_func_i2c (void)
{
puts ("I2C: ");
i2c_init (CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
puts ("ready\n");
return (0);
}
#endif
#if defined(CONFIG_HARD_SPI)
static int init_func_spi (void)
{
puts ("SPI: ");
spi_init ();
puts ("ready\n");
return (0);
}
#endif
/***********************************************************************/
#if defined(CONFIG_WATCHDOG)
static int init_func_watchdog_init (void)
{
puts (" Watchdog enabled\n");
WATCHDOG_RESET ();
return (0);
}
# define INIT_FUNC_WATCHDOG_INIT init_func_watchdog_init,
static int init_func_watchdog_reset (void)
{
WATCHDOG_RESET ();
return (0);
}
# define INIT_FUNC_WATCHDOG_RESET init_func_watchdog_reset,
#else
# define INIT_FUNC_WATCHDOG_INIT /* undef */
# define INIT_FUNC_WATCHDOG_RESET /* undef */
#endif /* CONFIG_WATCHDOG */
/************************************************************************
* Initialization sequence *
************************************************************************
*/
init_fnc_t *init_sequence[] = {
#if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)
probecpu,
#endif
#if defined(CONFIG_BOARD_EARLY_INIT_F)
board_early_init_f,
#endif
#if !defined(CONFIG_8xx_CPUCLK_DEFAULT)
get_clocks, /* get CPU and bus clocks (etc.) */
#if defined(CONFIG_TQM8xxL) && !defined(CONFIG_TQM866M) \
&& !defined(CONFIG_TQM885D)
adjust_sdram_tbs_8xx,
#endif
init_timebase,
#endif
#ifdef CONFIG_SYS_ALLOC_DPRAM
#if !defined(CONFIG_CPM2)
dpram_init,
#endif
#endif
#if defined(CONFIG_BOARD_POSTCLK_INIT)
board_postclk_init,
#endif
env_init,
#if defined(CONFIG_8xx_CPUCLK_DEFAULT)
get_clocks_866, /* get CPU and bus clocks according to the environment variable */
sdram_adjust_866, /* adjust sdram refresh rate according to the new clock */
init_timebase,
#endif
init_baudrate,
serial_init,
console_init_f,
display_options,
#if defined(CONFIG_8260)
prt_8260_rsr,
prt_8260_clks,
#endif /* CONFIG_8260 */
#if defined(CONFIG_MPC83xx)
prt_83xx_rsr,
#endif
checkcpu,
#if defined(CONFIG_MPC5xxx)
prt_mpc5xxx_clks,
#endif /* CONFIG_MPC5xxx */
#if defined(CONFIG_MPC8220)
prt_mpc8220_clks,
#endif
checkboard,
INIT_FUNC_WATCHDOG_INIT
#if defined(CONFIG_MISC_INIT_F)
misc_init_f,
#endif
INIT_FUNC_WATCHDOG_RESET
#if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
init_func_i2c,
#endif
#if defined(CONFIG_HARD_SPI)
init_func_spi,
#endif
#ifdef CONFIG_POST
post_init_f,
#endif
INIT_FUNC_WATCHDOG_RESET
init_func_ram,
#if defined(CONFIG_SYS_DRAM_TEST)
testdram,
#endif /* CONFIG_SYS_DRAM_TEST */
INIT_FUNC_WATCHDOG_RESET
NULL, /* Terminate this list */
};
ulong get_effective_memsize(void)
{
#ifndef CONFIG_VERY_BIG_RAM
return gd->ram_size;
#else
/* limit stack to what we can reasonable map */
return ((gd->ram_size > CONFIG_MAX_MEM_MAPPED) ?
CONFIG_MAX_MEM_MAPPED : gd->ram_size);
#endif
}
/************************************************************************
*
* This is the first part of the initialization sequence that is
* implemented in C, but still running from ROM.
*
* The main purpose is to provide a (serial) console interface as
* soon as possible (so we can see any error messages), and to
* initialize the RAM so that we can relocate the monitor code to
* RAM.
*
* Be aware of the restrictions: global data is read-only, BSS is not
* initialized, and stack space is limited to a few kB.
*
************************************************************************
*/
#ifdef CONFIG_LOGBUFFER
unsigned long logbuffer_base(void)
{
return CONFIG_SYS_SDRAM_BASE + get_effective_memsize() - LOGBUFF_LEN;
}
#endif
void board_init_f (ulong bootflag)
{
bd_t *bd;
ulong len, addr, addr_sp;
ulong *s;
gd_t *id;
init_fnc_t **init_fnc_ptr;
#ifdef CONFIG_PRAM
int i;
ulong reg;
uchar tmp[64]; /* long enough for environment variables */
#endif
/* Pointer is writable since we allocated a register for it */
gd = (gd_t *) (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET);
/* compiler optimization barrier needed for GCC >= 3.4 */
__asm__ __volatile__("": : :"memory");
#if !defined(CONFIG_CPM2) && !defined(CONFIG_MPC83xx) && \
!defined(CONFIG_MPC85xx) && !defined(CONFIG_MPC86xx)
/* Clear initial global data */
memset ((void *) gd, 0, sizeof (gd_t));
#endif
for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
if ((*init_fnc_ptr) () != 0) {
hang ();
}
}
/*
* Now that we have DRAM mapped and working, we can
* relocate the code and continue running from DRAM.
*
* Reserve memory at end of RAM for (top down in that order):
* - area that won't get touched by U-Boot and Linux (optional)
* - kernel log buffer
* - protected RAM
* - LCD framebuffer
* - monitor code
* - board info struct
*/
len = (ulong)&_end - CONFIG_SYS_MONITOR_BASE;
/*
* Subtract specified amount of memory to hide so that it won't
* get "touched" at all by U-Boot. By fixing up gd->ram_size
* the Linux kernel should now get passed the now "corrected"
* memory size and won't touch it either. This should work
* for arch/ppc and arch/powerpc. Only Linux board ports in
* arch/powerpc with bootwrapper support, that recalculate the
* memory size from the SDRAM controller setup will have to
* get fixed.
*/
gd->ram_size -= CONFIG_SYS_MEM_TOP_HIDE;
addr = CONFIG_SYS_SDRAM_BASE + get_effective_memsize();
#if defined(CONFIG_MP) && (defined(CONFIG_MPC86xx) || defined(CONFIG_E500))
/*
* We need to make sure the location we intend to put secondary core
* boot code is reserved and not used by any part of u-boot
*/
if (addr > determine_mp_bootpg()) {
addr = determine_mp_bootpg();
debug ("Reserving MP boot page to %08lx\n", addr);
}
#endif
#ifdef CONFIG_LOGBUFFER
#ifndef CONFIG_ALT_LB_ADDR
/* reserve kernel log buffer */
addr -= (LOGBUFF_RESERVE);
debug ("Reserving %dk for kernel logbuffer at %08lx\n", LOGBUFF_LEN, addr);
#endif
#endif
#ifdef CONFIG_PRAM
/*
* reserve protected RAM
*/
i = getenv_r ("pram", (char *)tmp, sizeof (tmp));
reg = (i > 0) ? simple_strtoul ((const char *)tmp, NULL, 10) : CONFIG_PRAM;
addr -= (reg << 10); /* size is in kB */
debug ("Reserving %ldk for protected RAM at %08lx\n", reg, addr);
#endif /* CONFIG_PRAM */
/* round down to next 4 kB limit */
addr &= ~(4096 - 1);
debug ("Top of RAM usable for U-Boot at: %08lx\n", addr);
#ifdef CONFIG_LCD
/* reserve memory for LCD display (always full pages) */
addr = lcd_setmem (addr);
gd->fb_base = addr;
#endif /* CONFIG_LCD */
#if defined(CONFIG_VIDEO) && defined(CONFIG_8xx)
/* reserve memory for video display (always full pages) */
addr = video_setmem (addr);
gd->fb_base = addr;
#endif /* CONFIG_VIDEO */
/*
* reserve memory for U-Boot code, data & bss
* round down to next 4 kB limit
*/
addr -= len;
addr &= ~(4096 - 1);
#ifdef CONFIG_E500
/* round down to next 64 kB limit so that IVPR stays aligned */
addr &= ~(65536 - 1);
#endif
debug ("Reserving %ldk for U-Boot at: %08lx\n", len >> 10, addr);
#ifdef CONFIG_AMIGAONEG3SE
gd->relocaddr = addr;
#endif
/*
* reserve memory for malloc() arena
*/
addr_sp = addr - TOTAL_MALLOC_LEN;
debug ("Reserving %dk for malloc() at: %08lx\n",
TOTAL_MALLOC_LEN >> 10, addr_sp);
/*
* (permanently) allocate a Board Info struct
* and a permanent copy of the "global" data
*/
addr_sp -= sizeof (bd_t);
bd = (bd_t *) addr_sp;
gd->bd = bd;
debug ("Reserving %zu Bytes for Board Info at: %08lx\n",
sizeof (bd_t), addr_sp);
addr_sp -= sizeof (gd_t);
id = (gd_t *) addr_sp;
debug ("Reserving %zu Bytes for Global Data at: %08lx\n",
sizeof (gd_t), addr_sp);
/*
* Finally, we set up a new (bigger) stack.
*
* Leave some safety gap for SP, force alignment on 16 byte boundary
* Clear initial stack frame
*/
addr_sp -= 16;
addr_sp &= ~0xF;
s = (ulong *)addr_sp;
*s-- = 0;
*s-- = 0;
addr_sp = (ulong)s;
debug ("Stack Pointer at: %08lx\n", addr_sp);
/*
* Save local variables to board info struct
*/
bd->bi_memstart = CONFIG_SYS_SDRAM_BASE; /* start of DRAM memory */
bd->bi_memsize = gd->ram_size; /* size of DRAM memory in bytes */
#ifdef CONFIG_IP860
bd->bi_sramstart = SRAM_BASE; /* start of SRAM memory */
bd->bi_sramsize = SRAM_SIZE; /* size of SRAM memory */
#elif defined CONFIG_MPC8220
bd->bi_sramstart = CONFIG_SYS_SRAM_BASE; /* start of SRAM memory */
bd->bi_sramsize = CONFIG_SYS_SRAM_SIZE; /* size of SRAM memory */
#else
bd->bi_sramstart = 0; /* FIXME */ /* start of SRAM memory */
bd->bi_sramsize = 0; /* FIXME */ /* size of SRAM memory */
#endif
#if defined(CONFIG_8xx) || defined(CONFIG_8260) || defined(CONFIG_5xx) || \
defined(CONFIG_E500) || defined(CONFIG_MPC86xx)
bd->bi_immr_base = CONFIG_SYS_IMMR; /* base of IMMR register */
#endif
#if defined(CONFIG_MPC5xxx)
bd->bi_mbar_base = CONFIG_SYS_MBAR; /* base of internal registers */
#endif
#if defined(CONFIG_MPC83xx)
bd->bi_immrbar = CONFIG_SYS_IMMR;
#endif
#if defined(CONFIG_MPC8220)
bd->bi_mbar_base = CONFIG_SYS_MBAR; /* base of internal registers */
bd->bi_inpfreq = gd->inp_clk;
bd->bi_pcifreq = gd->pci_clk;
bd->bi_vcofreq = gd->vco_clk;
bd->bi_pevfreq = gd->pev_clk;
bd->bi_flbfreq = gd->flb_clk;
/* store bootparam to sram (backward compatible), here? */
{
u32 *sram = (u32 *)CONFIG_SYS_SRAM_BASE;
*sram++ = gd->ram_size;
*sram++ = gd->bus_clk;
*sram++ = gd->inp_clk;
*sram++ = gd->cpu_clk;
*sram++ = gd->vco_clk;
*sram++ = gd->flb_clk;
*sram++ = 0xb8c3ba11; /* boot signature */
}
#endif
bd->bi_bootflags = bootflag; /* boot / reboot flag (for LynxOS) */
WATCHDOG_RESET ();
bd->bi_intfreq = gd->cpu_clk; /* Internal Freq, in Hz */
bd->bi_busfreq = gd->bus_clk; /* Bus Freq, in Hz */
#if defined(CONFIG_CPM2)
bd->bi_cpmfreq = gd->cpm_clk;
bd->bi_brgfreq = gd->brg_clk;
bd->bi_sccfreq = gd->scc_clk;
bd->bi_vco = gd->vco_out;
#endif /* CONFIG_CPM2 */
#if defined(CONFIG_MPC512X)
bd->bi_ipsfreq = gd->ips_clk;
#endif /* CONFIG_MPC512X */
#if defined(CONFIG_MPC5xxx)
bd->bi_ipbfreq = gd->ipb_clk;
bd->bi_pcifreq = gd->pci_clk;
#endif /* CONFIG_MPC5xxx */
bd->bi_baudrate = gd->baudrate; /* Console Baudrate */
#ifdef CONFIG_SYS_EXTBDINFO
strncpy ((char *)bd->bi_s_version, "1.2", sizeof (bd->bi_s_version));
strncpy ((char *)bd->bi_r_version, U_BOOT_VERSION, sizeof (bd->bi_r_version));
bd->bi_procfreq = gd->cpu_clk; /* Processor Speed, In Hz */
bd->bi_plb_busfreq = gd->bus_clk;
#if defined(CONFIG_405GP) || defined(CONFIG_405EP) || \
defined(CONFIG_440EP) || defined(CONFIG_440GR) || \
defined(CONFIG_440EPX) || defined(CONFIG_440GRX)
bd->bi_pci_busfreq = get_PCI_freq ();
bd->bi_opbfreq = get_OPB_freq ();
#elif defined(CONFIG_XILINX_405)
bd->bi_pci_busfreq = get_PCI_freq ();
#endif
#endif
debug ("New Stack Pointer is: %08lx\n", addr_sp);
WATCHDOG_RESET ();
#ifdef CONFIG_POST
post_bootmode_init();
post_run (NULL, POST_ROM | post_bootmode_get(0));
#endif
WATCHDOG_RESET();
memcpy (id, (void *)gd, sizeof (gd_t));
relocate_code (addr_sp, id, addr);
/* NOTREACHED - relocate_code() does not return */
}
/************************************************************************
*
* 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)
{
char *s;
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->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->cpu += dest_addr - CONFIG_SYS_MONITOR_BASE;
#endif
#ifdef CONFIG_SERIAL_MULTI
serial_initialize();
#endif
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) || defined(CONFIG_MPC83xx)
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_BAB7xx) || defined(CONFIG_CPC45)
/*
* Do PCI configuration on BAB7xx and CPC45 _before_ the flash
* gets initialised, because we need the ISA resp. PCI_to_LOCAL bus
* bridge there.
*/
pci_init ();
#endif
#if defined(CONFIG_BAB7xx)
/*
* 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 ((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: %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 ();
}
bd->bi_flashstart = CONFIG_SYS_FLASH_BASE; /* update start of FLASH memory */
bd->bi_flashsize = flash_size; /* size of FLASH memory (final value) */
#if defined(CONFIG_SYS_UPDATE_FLASH_SIZE)
/* Make a update of the Memctrl. */
update_flash_size (flash_size);
#endif
# if defined(CONFIG_PCU_E) || defined(CONFIG_OXC) || defined(CONFIG_RMU)
/* flash mapped at end of memory map */
bd->bi_flashoffset = TEXT_BASE + flash_size;
# elif 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 */
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
/* relocate environment function pointers etc. */
env_relocate ();
/*
* 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_r(), 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
*/
{
char *s = getenv ("i2cfast");
if (s && ((*s == 'y') || (*s == 'Y'))) {
bd->bi_iic_fast[0] = 1;
bd->bi_iic_fast[1] = 1;
} else {
bd->bi_iic_fast[0] = 0;
bd->bi_iic_fast[1] = 0;
}
}
#else
bd->bi_iic_fast[0] = 0;
bd->bi_iic_fast[1] = 0;
#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_HERMES
if ((gd->board_type >> 16) == 2)
bd->bi_ethspeed = gd->board_type & 0xFFFF;
else
bd->bi_ethspeed = 0xFFFF;
#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 */
/* IP Address */
bd->bi_ip_addr = getenv_IPaddr ("ipaddr");
WATCHDOG_RESET ();
#if defined(CONFIG_PCI) && !defined(CONFIG_BAB7xx) && !defined(CONFIG_CPC45)
/*
* 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
#ifdef CONFIG_HERMES
if (bd->bi_ethspeed != 0xFFFF)
hermes_start_lxt980 ((int) bd->bi_ethspeed);
#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 ();
/* Must happen after interrupts are initialized since
* an irq handler gets installed
*/
#ifdef CONFIG_SERIAL_SOFTWARE_FIFO
serial_buffered_init();
#endif
#if defined(CONFIG_STATUS_LED) && defined(STATUS_LED_BOOT)
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
WATCHDOG_RESET ();
#if defined(CONFIG_DTT) /* Digital Thermometers and Thermostats */
dtt_init ();
#endif
#if defined(CONFIG_CMD_SCSI)
WATCHDOG_RESET ();
puts ("SCSI: ");
scsi_init ();
#endif
#ifdef CONFIG_GENERIC_MMC
WATCHDOG_RESET ();
puts ("MMC: ");
mmc_initialize (bd);
#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)
#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_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;
uchar memsz[32];
#ifdef CONFIG_PRAM
char *s;
if ((s = getenv ("pram")) != 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
#ifdef CONFIG_PS2KBD
puts ("PS/2: ");
kbd_init();
#endif
#ifdef CONFIG_MODEM_SUPPORT
{
extern int do_mdm_init;
do_mdm_init = gd->do_mdm_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 hang (void)
{
puts ("### ERROR ### Please RESET the board ###\n");
show_boot_progress(-30);
for (;;);
}
#if 0 /* We could use plain global data, but the resulting code is bigger */
/*
* Pointer to initial global data area
*
* Here we initialize it.
*/
#undef XTRN_DECLARE_GLOBAL_DATA_PTR
#define XTRN_DECLARE_GLOBAL_DATA_PTR /* empty = allocate here */
DECLARE_GLOBAL_DATA_PTR = (gd_t *) (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET);
#endif /* 0 */
/************************************************************************/