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https://github.com/brain-hackers/u-boot-brain
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![Mike Frysinger](/assets/img/avatar_default.png)
All arches init this the same way, so move the logic into the core net code to avoid duplicating it everywhere else. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Reviewed-by: Joe Hershberger <joe.hershberger@ni.com>
198 lines
4.2 KiB
C
198 lines
4.2 KiB
C
/*
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* (C) Copyright 2011
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* Graeme Russ, <graeme.russ@gmail.com>
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <command.h>
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#include <stdio_dev.h>
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#include <version.h>
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#include <malloc.h>
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#include <net.h>
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#include <ide.h>
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#include <serial.h>
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#include <status_led.h>
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#include <asm/processor.h>
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#include <asm/u-boot-x86.h>
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#include <asm/init_helpers.h>
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DECLARE_GLOBAL_DATA_PTR;
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/************************************************************************
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* Init Utilities *
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************************************************************************
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* Some of this code should be moved into the core functions,
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* or dropped completely,
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* but let's get it working (again) first...
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*/
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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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int display_dram_config(void)
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{
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int i;
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puts("DRAM Configuration:\n");
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for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
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printf("Bank #%d: %08lx ", i, gd->bd->bi_dram[i].start);
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print_size(gd->bd->bi_dram[i].size, "\n");
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}
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return 0;
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}
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int init_baudrate_f(void)
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{
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gd->baudrate = getenv_ulong("baudrate", 10, CONFIG_BAUDRATE);
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return 0;
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}
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int calculate_relocation_address(void)
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{
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ulong text_start = (ulong)&__text_start;
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ulong bss_end = (ulong)&__bss_end;
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ulong dest_addr;
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/*
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* NOTE: All destination address are rounded down to 16-byte
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* boundary to satisfy various worst-case alignment
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* requirements
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*/
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/* Global Data is at top of available memory */
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dest_addr = gd->ram_size;
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dest_addr -= GENERATED_GBL_DATA_SIZE;
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dest_addr &= ~15;
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gd->new_gd_addr = dest_addr;
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/* GDT is below Global Data */
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dest_addr -= X86_GDT_SIZE;
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dest_addr &= ~15;
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gd->gdt_addr = dest_addr;
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/* Stack is below GDT */
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gd->start_addr_sp = dest_addr;
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/* U-Boot is below the stack */
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dest_addr -= CONFIG_SYS_STACK_SIZE;
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dest_addr -= (bss_end - text_start);
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dest_addr &= ~15;
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gd->relocaddr = dest_addr;
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gd->reloc_off = (dest_addr - text_start);
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return 0;
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}
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int copy_gd_to_ram_f_r(void)
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{
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gd_t *ram_gd;
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/*
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* Global data is still in temporary memory (the CPU cache).
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* calculate_relocation_address() has set gd->new_gd_addr to
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* where the global data lives in RAM but getting it there
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* safely is a bit tricky due to the 'F-Segment Hack' that
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* we need to use for x86
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*/
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ram_gd = (gd_t *)gd->new_gd_addr;
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memcpy((void *)ram_gd, gd, sizeof(gd_t));
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/*
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* Reload the Global Descriptor Table so FS points to the
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* in-RAM copy of Global Data (calculate_relocation_address()
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* has already calculated the in-RAM location of the GDT)
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*/
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ram_gd->gd_addr = (ulong)ram_gd;
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init_gd(ram_gd, (u64 *)gd->gdt_addr);
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return 0;
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}
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int init_cache_f_r(void)
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{
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/* Initialise the CPU cache(s) */
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return init_cache();
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}
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int set_reloc_flag_r(void)
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{
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gd->flags = GD_FLG_RELOC;
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return 0;
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}
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int mem_malloc_init_r(void)
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{
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mem_malloc_init(((gd->relocaddr - CONFIG_SYS_MALLOC_LEN)+3)&~3,
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CONFIG_SYS_MALLOC_LEN);
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return 0;
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}
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bd_t bd_data;
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int init_bd_struct_r(void)
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{
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gd->bd = &bd_data;
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memset(gd->bd, 0, sizeof(bd_t));
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return 0;
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}
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#ifndef CONFIG_SYS_NO_FLASH
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int flash_init_r(void)
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{
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ulong size;
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puts("Flash: ");
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/* configure available FLASH banks */
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size = flash_init();
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print_size(size, "\n");
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return 0;
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}
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#endif
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#ifdef CONFIG_STATUS_LED
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int status_led_set_r(void)
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{
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status_led_set(STATUS_LED_BOOT, STATUS_LED_BLINKING);
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return 0;
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}
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#endif
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int set_load_addr_r(void)
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{
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/* Initialize from environment */
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load_addr = getenv_ulong("loadaddr", 16, load_addr);
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return 0;
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}
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