mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-13 14:53:06 +00:00
6ab6b2afa0
Useful rules in scripts/Makefile.lib allows us to easily generate a device tree blob and wrap it in assembly code. We do not need to parse a linker script to get output format and arch. This commit deletes ./u-boot.dtb since it is a copy of dts/dt.dtb. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
202 lines
5 KiB
C
202 lines
5 KiB
C
/*
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* (C) Copyright 2007 Michal Simek
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* (C) Copyright 2004 Atmark Techno, Inc.
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*
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* Michal SIMEK <monstr@monstr.eu>
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* Yasushi SHOJI <yashi@atmark-techno.com>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <command.h>
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#include <malloc.h>
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#include <version.h>
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#include <watchdog.h>
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#include <stdio_dev.h>
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#include <serial.h>
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#include <net.h>
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#include <spi.h>
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#include <linux/compiler.h>
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#include <asm/processor.h>
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#include <asm/microblaze_intc.h>
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#include <fdtdec.h>
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DECLARE_GLOBAL_DATA_PTR;
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static int display_banner(void)
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{
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printf("\n\n%s\n\n", version_string);
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return 0;
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}
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/*
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* All attempts to come up with a "common" initialization sequence
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* that works for all boards and architectures failed: some of the
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* requirements are just _too_ different. To get rid of the resulting
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* mess of board dependend #ifdef'ed code we now make the whole
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* initialization sequence configurable to the user.
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*
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* The requirements for any new initalization function is simple: it
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* receives a pointer to the "global data" structure as it's only
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* argument, and returns an integer return code, where 0 means
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* "continue" and != 0 means "fatal error, hang the system".
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*/
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typedef int (init_fnc_t) (void);
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init_fnc_t *init_sequence[] = {
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env_init,
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#ifdef CONFIG_OF_CONTROL
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fdtdec_check_fdt,
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#endif
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serial_init,
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#ifndef CONFIG_SPL_BUILD
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console_init_f,
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#endif
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display_banner,
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#ifndef CONFIG_SPL_BUILD
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interrupts_init,
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timer_init,
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#endif
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NULL,
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};
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unsigned long monitor_flash_len;
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void board_init_f(ulong not_used)
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{
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bd_t *bd;
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init_fnc_t **init_fnc_ptr;
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gd = (gd_t *)(CONFIG_SYS_SDRAM_BASE + CONFIG_SYS_GBL_DATA_OFFSET);
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bd = (bd_t *)(CONFIG_SYS_SDRAM_BASE + CONFIG_SYS_GBL_DATA_OFFSET
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- GENERATED_BD_INFO_SIZE);
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#if defined(CONFIG_CMD_FLASH) && !defined(CONFIG_SPL_BUILD)
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ulong flash_size = 0;
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#endif
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asm ("nop"); /* FIXME gd is not initialize - wait */
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memset((void *)gd, 0, GENERATED_GBL_DATA_SIZE);
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memset((void *)bd, 0, GENERATED_BD_INFO_SIZE);
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gd->bd = bd;
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gd->baudrate = CONFIG_BAUDRATE;
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bd->bi_baudrate = CONFIG_BAUDRATE;
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bd->bi_memstart = CONFIG_SYS_SDRAM_BASE;
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bd->bi_memsize = CONFIG_SYS_SDRAM_SIZE;
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gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
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monitor_flash_len = __end - __text_start;
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#ifdef CONFIG_OF_EMBED
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/* Get a pointer to the FDT */
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gd->fdt_blob = __dtb_dt_begin;
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#elif defined CONFIG_OF_SEPARATE
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/* FDT is at end of image */
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gd->fdt_blob = (void *)__end;
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#endif
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#ifndef CONFIG_SPL_BUILD
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/* Allow the early environment to override the fdt address */
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gd->fdt_blob = (void *)getenv_ulong("fdtcontroladdr", 16,
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(uintptr_t)gd->fdt_blob);
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#endif
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/*
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* The Malloc area is immediately below the monitor copy in DRAM
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* aka CONFIG_SYS_MONITOR_BASE - Note there is no need for reloc_off
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* as our monitory code is run from SDRAM
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*/
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mem_malloc_init(CONFIG_SYS_MALLOC_BASE, CONFIG_SYS_MALLOC_LEN);
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serial_initialize();
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#ifdef CONFIG_XILINX_TB_WATCHDOG
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hw_watchdog_init();
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#endif
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for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
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WATCHDOG_RESET();
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if ((*init_fnc_ptr) () != 0)
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hang();
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}
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#ifndef CONFIG_SPL_BUILD
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#ifdef CONFIG_OF_CONTROL
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/* For now, put this check after the console is ready */
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if (fdtdec_prepare_fdt())
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panic("** No FDT - please see doc/README.fdt-control");
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else
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printf("DTB: 0x%x\n", (u32)gd->fdt_blob);
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#endif
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puts("SDRAM :\n");
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printf("\t\tIcache:%s\n", icache_status() ? "ON" : "OFF");
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printf("\t\tDcache:%s\n", dcache_status() ? "ON" : "OFF");
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printf("\tU-Boot Start:0x%08x\n", CONFIG_SYS_TEXT_BASE);
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#if defined(CONFIG_CMD_FLASH)
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puts("Flash: ");
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bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
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flash_size = flash_init();
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if (bd->bi_flashstart && flash_size > 0) {
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# ifdef CONFIG_SYS_FLASH_CHECKSUM
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print_size(flash_size, "");
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/*
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* Compute and print flash CRC if flashchecksum is set to 'y'
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*
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* NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
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*/
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if (getenv_yesno("flashchecksum") == 1) {
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printf(" CRC: %08X",
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crc32(0, (const u8 *)bd->bi_flashstart,
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flash_size)
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);
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}
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putc('\n');
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# else /* !CONFIG_SYS_FLASH_CHECKSUM */
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print_size(flash_size, "\n");
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# endif /* CONFIG_SYS_FLASH_CHECKSUM */
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bd->bi_flashsize = flash_size;
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bd->bi_flashoffset = bd->bi_flashstart + flash_size;
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} else {
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puts("Flash init FAILED");
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bd->bi_flashstart = 0;
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bd->bi_flashsize = 0;
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bd->bi_flashoffset = 0;
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}
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#endif
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#ifdef CONFIG_SPI
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spi_init();
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#endif
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/* relocate environment function pointers etc. */
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env_relocate();
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/* Initialize stdio devices */
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stdio_init();
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/* Initialize the jump table for applications */
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jumptable_init();
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/* Initialize the console (after the relocation and devices init) */
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console_init_r();
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board_init();
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/* Initialize from environment */
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load_addr = getenv_ulong("loadaddr", 16, load_addr);
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#if defined(CONFIG_CMD_NET)
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printf("Net: ");
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eth_initialize(gd->bd);
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uchar enetaddr[6];
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eth_getenv_enetaddr("ethaddr", enetaddr);
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printf("MAC: %pM\n", enetaddr);
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#endif
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/* main_loop */
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for (;;) {
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WATCHDOG_RESET();
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main_loop();
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}
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#endif /* CONFIG_SPL_BUILD */
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}
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