+++ /dev/null
-/*
- * Copyright (C) 2004-2006 Atmel Corporation
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-#include <common.h>
-#include <command.h>
-#include <malloc.h>
-#include <stdio_dev.h>
-#include <version.h>
-#include <net.h>
-
-#ifdef CONFIG_BITBANGMII
-#include <miiphy.h>
-#endif
-
-#include <asm/sections.h>
-#include <asm/arch/mmu.h>
-#include <asm/arch/hardware.h>
-
-#ifndef CONFIG_IDENT_STRING
-#define CONFIG_IDENT_STRING ""
-#endif
-
-#ifdef CONFIG_GENERIC_ATMEL_MCI
-#include <mmc.h>
-#endif
-DECLARE_GLOBAL_DATA_PTR;
-
-unsigned long monitor_flash_len;
-
-__weak void dram_init_banksize(void)
-{
- gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
- gd->bd->bi_dram[0].size = gd->ram_size;
-}
-
-/* Weak aliases for optional board functions */
-static int __do_nothing(void)
-{
- return 0;
-}
-int board_postclk_init(void) __attribute__((weak, alias("__do_nothing")));
-int board_early_init_r(void) __attribute__((weak, alias("__do_nothing")));
-
-static int init_baudrate(void)
-{
- gd->baudrate = getenv_ulong("baudrate", 10, CONFIG_BAUDRATE);
- return 0;
-}
-
-static int display_banner (void)
-{
- printf ("\n\n%s\n\n", version_string);
- printf ("U-Boot code: %08lx -> %08lx data: %08lx -> %08lx\n",
- (unsigned long)_text, (unsigned long)_etext,
- (unsigned long)_data, (unsigned long)(&__bss_end));
- return 0;
-}
-
-static int display_dram_config (void)
-{
- int i;
-
- puts ("DRAM Configuration:\n");
-
- for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
- printf ("Bank #%d: %08lx ", i, gd->bd->bi_dram[i].start);
- print_size (gd->bd->bi_dram[i].size, "\n");
- }
-
- return 0;
-}
-
-static void display_flash_config (void)
-{
- puts ("Flash: ");
- print_size(gd->bd->bi_flashsize, " ");
- printf("at address 0x%08lx\n", gd->bd->bi_flashstart);
-}
-
-void board_init_f(ulong board_type)
-{
- gd_t gd_data;
- gd_t *new_gd;
- bd_t *bd;
- unsigned long *new_sp;
- unsigned long monitor_len;
- unsigned long monitor_addr;
- unsigned long addr;
-
- /* Initialize the global data pointer */
- memset(&gd_data, 0, sizeof(gd_data));
- gd = &gd_data;
-
- /* Perform initialization sequence */
- board_early_init_f();
- arch_cpu_init();
- board_postclk_init();
- env_init();
- init_baudrate();
- serial_init();
- console_init_f();
- display_banner();
- dram_init();
-
- /* If we have no SDRAM, we can't go on */
- if (gd->ram_size <= 0)
- panic("No working SDRAM available\n");
-
- /*
- * 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):
- * - u-boot image
- * - heap for malloc()
- * - board info struct
- * - global data struct
- * - stack
- */
- addr = CONFIG_SYS_SDRAM_BASE + gd->ram_size;
- monitor_len = (char *)(&__bss_end) - _text;
-
- /*
- * Reserve memory for u-boot code, data and bss.
- * Round down to next 4 kB limit.
- */
- addr -= monitor_len;
- addr &= ~(4096UL - 1);
- monitor_addr = addr;
-
- /* Reserve memory for malloc() */
- addr -= CONFIG_SYS_MALLOC_LEN;
-
-#ifdef CONFIG_LCD
-#ifdef CONFIG_FB_ADDR
- printf("LCD: Frame buffer allocated at preset 0x%08x\n",
- CONFIG_FB_ADDR);
- gd->fb_base = CONFIG_FB_ADDR;
-#else
- addr = lcd_setmem(addr);
- printf("LCD: Frame buffer allocated at 0x%08lx\n", addr);
- gd->fb_base = addr;
-#endif /* CONFIG_FB_ADDR */
-#endif /* CONFIG_LCD */
-
- /* Allocate a Board Info struct on a word boundary */
- addr -= sizeof(bd_t);
- addr &= ~3UL;
- gd->bd = bd = (bd_t *)addr;
-
- /* Allocate a new global data copy on a 8-byte boundary. */
- addr -= sizeof(gd_t);
- addr &= ~7UL;
- new_gd = (gd_t *)addr;
-
- /* And finally, a new, bigger stack. */
- new_sp = (unsigned long *)addr;
- gd->start_addr_sp = addr;
- *(--new_sp) = 0;
- *(--new_sp) = 0;
-
- dram_init_banksize();
-
- memcpy(new_gd, gd, sizeof(gd_t));
-
- relocate_code((unsigned long)new_sp, new_gd, monitor_addr);
-}
-
-void board_init_r(gd_t *new_gd, ulong dest_addr)
-{
-#ifndef CONFIG_ENV_IS_NOWHERE
- extern char * env_name_spec;
-#endif
- bd_t *bd;
-
- gd = new_gd;
- bd = gd->bd;
-
- gd->flags |= GD_FLG_RELOC;
- gd->reloc_off = dest_addr - CONFIG_SYS_MONITOR_BASE;
-
- /* Enable the MMU so that we can keep u-boot simple */
- mmu_init_r(dest_addr);
-
- board_early_init_r();
-
- monitor_flash_len = _edata - _text;
-
-#if defined(CONFIG_NEEDS_MANUAL_RELOC)
- /*
- * We have to relocate the command table manually
- */
- fixup_cmdtable(ll_entry_start(cmd_tbl_t, cmd),
- ll_entry_count(cmd_tbl_t, cmd));
-#endif /* defined(CONFIG_NEEDS_MANUAL_RELOC) */
-
- /* there are some other pointer constants we must deal with */
-#ifndef CONFIG_ENV_IS_NOWHERE
- env_name_spec += gd->reloc_off;
-#endif
-
- timer_init();
-
- /* The malloc area is right below the monitor image in RAM */
- mem_malloc_init(CONFIG_SYS_MONITOR_BASE + gd->reloc_off -
- CONFIG_SYS_MALLOC_LEN, CONFIG_SYS_MALLOC_LEN);
-
- enable_interrupts();
-
- bd->bi_flashstart = 0;
- bd->bi_flashsize = 0;
- bd->bi_flashoffset = 0;
-
-#ifndef CONFIG_SYS_NO_FLASH
- bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
- bd->bi_flashsize = flash_init();
- bd->bi_flashoffset = (unsigned long)_edata - (unsigned long)_text;
-
- if (bd->bi_flashsize)
- display_flash_config();
-#endif
-
- if (bd->bi_dram[0].size)
- display_dram_config();
-
- gd->bd->bi_boot_params = malloc(CONFIG_SYS_BOOTPARAMS_LEN);
- if (!gd->bd->bi_boot_params)
- puts("WARNING: Cannot allocate space for boot parameters\n");
-
- /* initialize environment */
- env_relocate();
-
- stdio_init();
- jumptable_init();
- console_init_r();
-
- /* Initialize from environment */
- load_addr = getenv_ulong("loadaddr", 16, load_addr);
-
-#ifdef CONFIG_BITBANGMII
- bb_miiphy_init();
-#endif
-#if defined(CONFIG_CMD_NET)
- puts("Net: ");
- eth_initialize();
-#endif
-
-#ifdef CONFIG_GENERIC_ATMEL_MCI
- mmc_initialize(gd->bd);
-#endif
- for (;;) {
- main_loop();
- }
-}
projects / karo-tx-uboot.git / blobdiff