* (C) Copyright 2011
* Graeme Russ, <graeme.russ@gmail.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
+ * SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
-#include <command.h>
-#include <stdio_dev.h>
-#include <version.h>
-#include <malloc.h>
-#include <net.h>
-#include <ide.h>
-#include <serial.h>
+#include <fdtdec.h>
#include <spi.h>
-#include <status_led.h>
-#include <asm/processor.h>
-#include <asm/u-boot-x86.h>
-#include <linux/compiler.h>
-
-#include <asm/init_helpers.h>
+#include <asm/errno.h>
+#include <asm/mtrr.h>
+#include <asm/sections.h>
DECLARE_GLOBAL_DATA_PTR;
-/************************************************************************
- * Init Utilities *
- ************************************************************************
- * Some of this code should be moved into the core functions,
- * or dropped completely,
- * but let's get it working (again) first...
- */
-
-int display_banner(void)
+/* Get the top of usable RAM */
+__weak ulong board_get_usable_ram_top(ulong total_size)
{
- printf("\n\n%s\n\n", version_string);
-
- return 0;
+ return gd->ram_size;
}
-int display_dram_config(void)
+int calculate_relocation_address(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;
-}
-
-int init_baudrate_f(void)
-{
- gd->baudrate = getenv_ulong("baudrate", 10, CONFIG_BAUDRATE);
- return 0;
-}
-
-__weak int calculate_relocation_address(void)
-{
- ulong text_start = (ulong)&__text_start;
- ulong bss_end = (ulong)&__bss_end;
+ const ulong uboot_size = (uintptr_t)&__bss_end -
+ (uintptr_t)&__text_start;
+ ulong total_size;
ulong dest_addr;
+ ulong fdt_size = 0;
+
+#if defined(CONFIG_OF_SEPARATE) && defined(CONFIG_OF_CONTROL)
+ if (gd->fdt_blob)
+ fdt_size = ALIGN(fdt_totalsize(gd->fdt_blob) + 0x1000, 32);
+#endif
+ total_size = ALIGN(uboot_size, 1 << 12) + CONFIG_SYS_MALLOC_LEN +
+ CONFIG_SYS_STACK_SIZE + fdt_size;
+ dest_addr = board_get_usable_ram_top(total_size);
/*
* NOTE: All destination address are rounded down to 16-byte
* boundary to satisfy various worst-case alignment
* requirements
*/
-
- /* Stack is at top of available memory */
- dest_addr = gd->ram_size;
-
- /* U-Boot is at the top */
- dest_addr -= (bss_end - text_start);
dest_addr &= ~15;
+
+#if defined(CONFIG_OF_SEPARATE) && defined(CONFIG_OF_CONTROL)
+ /*
+ * If the device tree is sitting immediate above our image then we
+ * must relocate it. If it is embedded in the data section, then it
+ * will be relocated with other data.
+ */
+ if (gd->fdt_blob) {
+ dest_addr -= fdt_size;
+ gd->new_fdt = (void *)dest_addr;
+ dest_addr &= ~15;
+ }
+#endif
+ /* U-Boot is below the FDT */
+ dest_addr -= uboot_size;
+ dest_addr &= ~((1 << 12) - 1);
gd->relocaddr = dest_addr;
- gd->reloc_off = (dest_addr - text_start);
+ gd->reloc_off = dest_addr - (uintptr_t)&__text_start;
/* Stack is at the bottom, so it can grow down */
gd->start_addr_sp = dest_addr - CONFIG_SYS_MALLOC_LEN;
int init_cache_f_r(void)
{
+#if defined(CONFIG_X86_RESET_VECTOR) & !defined(CONFIG_HAVE_FSP)
+ int ret;
+
+ ret = mtrr_commit(false);
+ /* If MTRR MSR is not implemented by the processor, just ignore it */
+ if (ret && ret != -ENOSYS)
+ return ret;
+#endif
/* Initialise the CPU cache(s) */
return init_cache();
}
-int set_reloc_flag_r(void)
-{
- gd->flags = GD_FLG_RELOC;
-
- return 0;
-}
-
-int mem_malloc_init_r(void)
-{
- mem_malloc_init(((gd->relocaddr - CONFIG_SYS_MALLOC_LEN)+3)&~3,
- CONFIG_SYS_MALLOC_LEN);
-
- return 0;
-}
-
bd_t bd_data;
int init_bd_struct_r(void)
return 0;
}
-#ifndef CONFIG_SYS_NO_FLASH
-int flash_init_r(void)
-{
- ulong size;
-
- puts("Flash: ");
-
- /* configure available FLASH banks */
- size = flash_init();
-
- print_size(size, "\n");
-
- return 0;
-}
-#endif
-
-#ifdef CONFIG_STATUS_LED
-int status_led_set_r(void)
-{
- status_led_set(STATUS_LED_BOOT, STATUS_LED_BLINKING);
-
- return 0;
-}
-#endif
-
-int set_load_addr_r(void)
-{
- /* Initialize from environment */
- load_addr = getenv_ulong("loadaddr", 16, load_addr);
-
- return 0;
-}
-
int init_func_spi(void)
{
puts("SPI: ");
puts("ready\n");
return 0;
}
-
-#ifdef CONFIG_OF_CONTROL
-int find_fdt(void)
-{
-#ifdef CONFIG_OF_EMBED
- /* Get a pointer to the FDT */
- gd->fdt_blob = _binary_dt_dtb_start;
-#elif defined CONFIG_OF_SEPARATE
- /* FDT is at end of image */
- gd->fdt_blob = (void *)(_end_ofs + _TEXT_BASE);
-#endif
- /* Allow the early environment to override the fdt address */
- gd->fdt_blob = (void *)getenv_ulong("fdtcontroladdr", 16,
- (uintptr_t)gd->fdt_blob);
-
- return 0;
-}
-
-int prepare_fdt(void)
-{
- /* For now, put this check after the console is ready */
- if (fdtdec_prepare_fdt()) {
- panic("** CONFIG_OF_CONTROL defined but no FDT - please see "
- "doc/README.fdt-control");
- }
-
- return 0;
-}
-#endif
projects / oweals / u-boot.git / blobdiff