| /* 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 <stdio_dev.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 |
| |
| #ifdef CONFIG_BITBANGMII |
| #include <miiphy.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 * const 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; |
| |
| /************************************************************************ |
| * 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) |
| { |
| gd->baudrate = getenv_ulong("baudrate", 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) |
| { |
| bd_t *bd; |
| init_fnc_t **init_fnc_ptr; |
| int j; |
| |
| #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, |
| GENERATED_GBL_DATA_SIZE); |
| #endif |
| |
| #ifdef CONFIG_POST |
| post_bootmode_init(); |
| post_run(NULL, POST_ROM | post_bootmode_get(0)); |
| #endif |
| |
| #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) */ |
| |
| #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 |
| |
| #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_STATUS_LED |
| 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_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_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 |
| bootstage_error(BOOTSTAGE_ID_NEED_RESET); |
| #endif |
| for (;;) ; |
| } |
| |
| /************************************************************************/ |