u-boot/arch/blackfin/lib/board.c
Wolfgang Denk 25ddd1fb0a Replace CONFIG_SYS_GBL_DATA_SIZE by auto-generated value
CONFIG_SYS_GBL_DATA_SIZE has always been just a bad workarond for not
being able to use "sizeof(struct global_data)" in assembler files.
Recent experience has shown that manual synchronization is not
reliable enough.  This patch renames CONFIG_SYS_GBL_DATA_SIZE into
GENERATED_GBL_DATA_SIZE which gets automatically generated by the
asm-offsets tool.  In the result, all definitions of this value can be
deleted from the board config files.  We have to make sure that all
files that reference such data include the new <asm-offsets.h> file.

No other changes have been done yet, but it is obvious that similar
changes / simplifications can be done for other, related macro
definitions as well.

Signed-off-by: Wolfgang Denk <wd@denx.de>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
2010-10-26 21:05:30 +02:00

419 lines
9.9 KiB
C

/*
* U-boot - board.c First C file to be called contains init routines
*
* Copyright (c) 2005-2008 Analog Devices Inc.
*
* (C) Copyright 2000-2004
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* Licensed under the GPL-2 or later.
*/
#include <common.h>
#include <command.h>
#include <stdio_dev.h>
#include <environment.h>
#include <malloc.h>
#include <mmc.h>
#include <net.h>
#include <timestamp.h>
#include <status_led.h>
#include <version.h>
#include <asm/cplb.h>
#include <asm/mach-common/bits/mpu.h>
#include <kgdb.h>
#ifdef CONFIG_CMD_NAND
#include <nand.h> /* cannot even include nand.h if it isnt configured */
#endif
#ifdef CONFIG_BITBANGMII
#include <miiphy.h>
#endif
#if defined(CONFIG_POST)
#include <post.h>
int post_flag;
#endif
DECLARE_GLOBAL_DATA_PTR;
const char version_string[] = U_BOOT_VERSION " ("U_BOOT_DATE" - "U_BOOT_TIME")";
__attribute__((always_inline))
static inline void serial_early_puts(const char *s)
{
#ifdef CONFIG_DEBUG_EARLY_SERIAL
serial_puts("Early: ");
serial_puts(s);
#endif
}
static int display_banner(void)
{
printf("\n\n%s\n\n", version_string);
printf("CPU: ADSP %s "
"(Detected Rev: 0.%d) "
"(%s boot)\n",
gd->bd->bi_cpu,
bfin_revid(),
get_bfin_boot_mode(CONFIG_BFIN_BOOT_MODE));
return 0;
}
static int init_baudrate(void)
{
char baudrate[15];
int i = getenv_f("baudrate", baudrate, sizeof(baudrate));
gd->bd->bi_baudrate = gd->baudrate = (i > 0)
? simple_strtoul(baudrate, NULL, 10)
: CONFIG_BAUDRATE;
return 0;
}
static void display_global_data(void)
{
bd_t *bd;
#ifndef CONFIG_DEBUG_EARLY_SERIAL
return;
#endif
bd = gd->bd;
printf(" gd: %p\n", gd);
printf(" |-flags: %lx\n", gd->flags);
printf(" |-board_type: %lx\n", gd->board_type);
printf(" |-baudrate: %lu\n", gd->baudrate);
printf(" |-have_console: %lx\n", gd->have_console);
printf(" |-ram_size: %lx\n", gd->ram_size);
printf(" |-env_addr: %lx\n", gd->env_addr);
printf(" |-env_valid: %lx\n", gd->env_valid);
printf(" |-jt(%p): %p\n", gd->jt, *(gd->jt));
printf(" \\-bd: %p\n", gd->bd);
printf(" |-bi_baudrate: %x\n", bd->bi_baudrate);
printf(" |-bi_ip_addr: %lx\n", bd->bi_ip_addr);
printf(" |-bi_boot_params: %lx\n", bd->bi_boot_params);
printf(" |-bi_memstart: %lx\n", bd->bi_memstart);
printf(" |-bi_memsize: %lx\n", bd->bi_memsize);
printf(" |-bi_flashstart: %lx\n", bd->bi_flashstart);
printf(" |-bi_flashsize: %lx\n", bd->bi_flashsize);
printf(" \\-bi_flashoffset: %lx\n", bd->bi_flashoffset);
}
#define CPLB_PAGE_SIZE (4 * 1024 * 1024)
#define CPLB_PAGE_MASK (~(CPLB_PAGE_SIZE - 1))
void init_cplbtables(void)
{
volatile uint32_t *ICPLB_ADDR, *ICPLB_DATA;
volatile uint32_t *DCPLB_ADDR, *DCPLB_DATA;
uint32_t extern_memory;
size_t i;
void icplb_add(uint32_t addr, uint32_t data)
{
*(ICPLB_ADDR + i) = addr;
*(ICPLB_DATA + i) = data;
}
void dcplb_add(uint32_t addr, uint32_t data)
{
*(DCPLB_ADDR + i) = addr;
*(DCPLB_DATA + i) = data;
}
/* populate a few common entries ... we'll let
* the memory map and cplb exception handler do
* the rest of the work.
*/
i = 0;
ICPLB_ADDR = (uint32_t *)ICPLB_ADDR0;
ICPLB_DATA = (uint32_t *)ICPLB_DATA0;
DCPLB_ADDR = (uint32_t *)DCPLB_ADDR0;
DCPLB_DATA = (uint32_t *)DCPLB_DATA0;
icplb_add(0xFFA00000, L1_IMEMORY);
dcplb_add(0xFF800000, L1_DMEMORY);
++i;
if (CONFIG_MEM_SIZE) {
uint32_t mbase = CONFIG_SYS_MONITOR_BASE;
uint32_t mend = mbase + CONFIG_SYS_MONITOR_LEN;
mbase &= CPLB_PAGE_MASK;
mend &= CPLB_PAGE_MASK;
icplb_add(mbase, SDRAM_IKERNEL);
dcplb_add(mbase, SDRAM_DKERNEL);
++i;
/*
* If the monitor crosses a 4 meg boundary, we'll need
* to lock two entries for it. We assume it doesn't
* cross two 4 meg boundaries ...
*/
if (mbase != mend) {
icplb_add(mend, SDRAM_IKERNEL);
dcplb_add(mend, SDRAM_DKERNEL);
++i;
}
}
icplb_add(0x20000000, SDRAM_INON_CHBL);
dcplb_add(0x20000000, SDRAM_EBIU);
++i;
/* Add entries for the rest of external RAM up to the bootrom */
extern_memory = 0;
#ifdef CONFIG_DEBUG_NULL_PTR
icplb_add(extern_memory, (SDRAM_IKERNEL & ~PAGE_SIZE_MASK) | PAGE_SIZE_1KB);
dcplb_add(extern_memory, (SDRAM_DKERNEL & ~PAGE_SIZE_MASK) | PAGE_SIZE_1KB);
++i;
icplb_add(extern_memory, SDRAM_IKERNEL);
dcplb_add(extern_memory, SDRAM_DKERNEL);
extern_memory += CPLB_PAGE_SIZE;
++i;
#endif
while (i < 16 && extern_memory < (CONFIG_SYS_MONITOR_BASE & CPLB_PAGE_MASK)) {
icplb_add(extern_memory, SDRAM_IGENERIC);
dcplb_add(extern_memory, SDRAM_DGENERIC);
extern_memory += CPLB_PAGE_SIZE;
++i;
}
while (i < 16) {
icplb_add(0, 0);
dcplb_add(0, 0);
++i;
}
}
/*
* 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".
*/
extern int watchdog_init(void);
extern int exception_init(void);
extern int irq_init(void);
extern int timer_init(void);
void board_init_f(ulong bootflag)
{
ulong addr;
bd_t *bd;
char buf[32];
#ifdef CONFIG_BOARD_EARLY_INIT_F
serial_early_puts("Board early init flash\n");
board_early_init_f();
#endif
serial_early_puts("Init CPLB tables\n");
init_cplbtables();
serial_early_puts("Exceptions setup\n");
exception_init();
#ifndef CONFIG_ICACHE_OFF
serial_early_puts("Turn on ICACHE\n");
icache_enable();
#endif
#ifndef CONFIG_DCACHE_OFF
serial_early_puts("Turn on DCACHE\n");
dcache_enable();
#endif
#ifdef CONFIG_WATCHDOG
serial_early_puts("Setting up external watchdog\n");
watchdog_init();
#endif
#ifdef DEBUG
if (GENERATED_GBL_DATA_SIZE < sizeof(*gd))
hang();
#endif
serial_early_puts("Init global data\n");
gd = (gd_t *) (CONFIG_SYS_GBL_DATA_ADDR);
memset((void *)gd, 0, GENERATED_GBL_DATA_SIZE);
/* Board data initialization */
addr = (CONFIG_SYS_GBL_DATA_ADDR + sizeof(gd_t));
/* Align to 4 byte boundary */
addr &= ~(4 - 1);
bd = (bd_t *) addr;
gd->bd = bd;
memset((void *)bd, 0, sizeof(bd_t));
bd->bi_r_version = version_string;
bd->bi_cpu = BFIN_CPU;
bd->bi_board_name = BFIN_BOARD_NAME;
bd->bi_vco = get_vco();
bd->bi_cclk = get_cclk();
bd->bi_sclk = get_sclk();
bd->bi_memstart = CONFIG_SYS_SDRAM_BASE;
bd->bi_memsize = CONFIG_SYS_MAX_RAM_SIZE;
/* Initialize */
serial_early_puts("IRQ init\n");
irq_init();
serial_early_puts("Environment init\n");
env_init();
serial_early_puts("Baudrate init\n");
init_baudrate();
serial_early_puts("Serial init\n");
serial_init();
serial_early_puts("Console init flash\n");
console_init_f();
serial_early_puts("End of early debugging\n");
display_banner();
checkboard();
timer_init();
printf("Clock: VCO: %s MHz, ", strmhz(buf, get_vco()));
printf("Core: %s MHz, ", strmhz(buf, get_cclk()));
printf("System: %s MHz\n", strmhz(buf, get_sclk()));
printf("RAM: ");
print_size(bd->bi_memsize, "\n");
#if defined(CONFIG_POST)
post_init_f();
post_bootmode_init();
post_run(NULL, POST_ROM | post_bootmode_get(0));
#endif
board_init_r((gd_t *) gd, 0x20000010);
}
static void board_net_init_r(bd_t *bd)
{
#ifdef CONFIG_BITBANGMII
bb_miiphy_init();
#endif
#ifdef CONFIG_CMD_NET
char *s;
if ((s = getenv("bootfile")) != NULL)
copy_filename(BootFile, s, sizeof(BootFile));
bd->bi_ip_addr = getenv_IPaddr("ipaddr");
printf("Net: ");
eth_initialize(gd->bd);
#endif
}
void board_init_r(gd_t * id, ulong dest_addr)
{
char *s;
bd_t *bd;
gd = id;
gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
bd = gd->bd;
#if defined(CONFIG_POST)
post_output_backlog();
#endif
/* initialize malloc() area */
mem_malloc_init(CONFIG_SYS_MALLOC_BASE, CONFIG_SYS_MALLOC_LEN);
#if !defined(CONFIG_SYS_NO_FLASH)
/* Initialize the flash and protect u-boot by default */
extern flash_info_t flash_info[];
puts("Flash: ");
ulong size = flash_init();
print_size(size, "\n");
flash_protect(FLAG_PROTECT_SET, CONFIG_SYS_FLASH_BASE,
CONFIG_SYS_FLASH_BASE + CONFIG_SYS_MONITOR_LEN - 1,
&flash_info[0]);
bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
bd->bi_flashsize = size;
bd->bi_flashoffset = 0;
#else
bd->bi_flashstart = 0;
bd->bi_flashsize = 0;
bd->bi_flashoffset = 0;
#endif
#ifdef CONFIG_CMD_NAND
puts("NAND: ");
nand_init(); /* go init the NAND */
#endif
#ifdef CONFIG_GENERIC_MMC
puts("MMC: ");
mmc_initialize(bd);
#endif
/* relocate environment function pointers etc. */
env_relocate();
/* Initialize stdio devices */
stdio_init();
jumptable_init();
/* Initialize the console (after the relocation and devices init) */
console_init_r();
#ifdef CONFIG_CMD_KGDB
puts("KGDB: ");
kgdb_init();
#endif
#ifdef CONFIG_STATUS_LED
status_led_set(STATUS_LED_BOOT, STATUS_LED_BLINKING);
status_led_set(STATUS_LED_CRASH, STATUS_LED_OFF);
#endif
/* Initialize from environment */
if ((s = getenv("loadaddr")) != NULL)
load_addr = simple_strtoul(s, NULL, 16);
#if defined(CONFIG_MISC_INIT_R)
/* miscellaneous platform dependent initialisations */
misc_init_r();
#endif
board_net_init_r(bd);
display_global_data();
#if defined(CONFIG_POST)
if (post_flag)
post_run(NULL, POST_RAM | post_bootmode_get(0));
#endif
if (bfin_os_log_check()) {
puts("\nLog buffer from operating system:\n");
bfin_os_log_dump();
puts("\n");
}
/* main_loop() can return to retry autoboot, if so just run it again. */
for (;;)
main_loop();
}
void hang(void)
{
#ifdef CONFIG_STATUS_LED
status_led_set(STATUS_LED_BOOT, STATUS_LED_OFF);
status_led_set(STATUS_LED_CRASH, STATUS_LED_BLINKING);
#endif
puts("### ERROR ### Please RESET the board ###\n");
while (1)
/* If a JTAG emulator is hooked up, we'll automatically trigger
* a breakpoint in it. If one isn't, this is just a NOP.
*/
asm("emuexcpt;");
}