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u-boot/arch/blackfin/lib/board.c
Heiko Schocher 3f4978c713 i2c: common changes for multibus/multiadapter support 
Signed-off-by: Heiko Schocher <hs@denx.de>
Signed-off-by: Simon Glass <sjg@chromium.org>
Cc: Henrik Nordström <henrik@henriknordstrom.net>
2013-07-23 05:54:28 +02:00

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/*
* 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 <serial.h>
#include <environment.h>
#include <malloc.h>
#include <mmc.h>
#include <net.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
#if defined(CONFIG_SYS_I2C)
#include <i2c.h>
#endif
DECLARE_GLOBAL_DATA_PTR;
__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)
{
display_options();
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)
{
gd->baudrate = getenv_ulong("baudrate", 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->arch.board_type);
printf(" |-baudrate: %u\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_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))
#if defined(__ADSPBF60x__)
#define CPLB_EX_PAGE_SIZE (16 * 1024 * 1024)
#define CPLB_EX_PAGE_MASK (~(CPLB_EX_PAGE_SIZE - 1))
#else
#define CPLB_EX_PAGE_SIZE CPLB_PAGE_SIZE
#define CPLB_EX_PAGE_MASK CPLB_PAGE_MASK
#endif
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 defined(__ADSPBF60x__)
icplb_add(0x0, 0x0);
dcplb_add(CONFIG_SYS_FLASH_BASE, SDRAM_EBIU);
++i;
#endif
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;
}
}
#ifndef __ADSPBF60x__
icplb_add(0x20000000, SDRAM_INON_CHBL);
dcplb_add(0x20000000, SDRAM_EBIU);
++i;
#endif
/* 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_EX_PAGE_MASK)) {
icplb_add(extern_memory, SDRAM_IGENERIC);
dcplb_add(extern_memory, SDRAM_DGENERIC);
extern_memory += CPLB_EX_PAGE_SIZE;
++i;
}
while (i < 16) {
icplb_add(0, 0);
dcplb_add(0, 0);
++i;
}
}
static int global_board_data_init(void)
{
#ifndef CONFIG_SYS_GBL_DATA_ADDR
# define CONFIG_SYS_GBL_DATA_ADDR 0
#endif
#ifndef CONFIG_SYS_BD_INFO_ADDR
# define CONFIG_SYS_BD_INFO_ADDR 0
#endif
bd_t *bd;
if (CONFIG_SYS_GBL_DATA_ADDR) {
gd = (gd_t *) (CONFIG_SYS_GBL_DATA_ADDR);
memset((void *)gd, 0, GENERATED_GBL_DATA_SIZE);
} else {
static gd_t _bfin_gd;
gd = &_bfin_gd;
}
if (CONFIG_SYS_BD_INFO_ADDR) {
bd = (bd_t *) (CONFIG_SYS_BD_INFO_ADDR);
memset(bd, 0, GENERATED_BD_INFO_SIZE);
} else {
static bd_t _bfin_bd;
bd = &_bfin_bd;
}
gd->bd = bd;
bd->bi_r_version = version_string;
bd->bi_cpu = __stringify(CONFIG_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;
bd->bi_baudrate = (gd->baudrate > 0)
? simple_strtoul(gd->baudrate, 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".
*/
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)
{
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_HW_WATCHDOG
serial_early_puts("Setting up external watchdog\n");
hw_watchdog_init();
#endif
#ifdef DEBUG
if (GENERATED_GBL_DATA_SIZE < sizeof(*gd))
hang();
#endif
serial_early_puts("Init global data\n");
global_board_data_init();
/* 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_initialize();
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()));
#if defined(__ADSPBF60x__)
printf("System0: %s MHz, ", strmhz(buf, get_sclk0()));
printf("System1: %s MHz, ", strmhz(buf, get_sclk1()));
printf("Dclk: %s MHz\n", strmhz(buf, get_dclk()));
#else
printf("System: %s MHz\n", strmhz(buf, get_sclk()));
#endif
if (CONFIG_MEM_SIZE) {
printf("RAM: ");
print_size(gd->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
printf("Net: ");
eth_initialize(bd);
#endif
}
void board_init_r(gd_t * id, ulong dest_addr)
{
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
#if defined(CONFIG_SYS_I2C)
i2c_reloc_fixup();
#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 */
load_addr = getenv_ulong("loadaddr", 16, load_addr);
#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 (CONFIG_MEM_SIZE && 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();
}
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