forked from rrcarlosr/Jetpack
515 lines
12 KiB
C
515 lines
12 KiB
C
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/*
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* (C) Copyright 2010
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* Texas Instruments, <www.ti.com>
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*
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* Aneesh V <aneesh@ti.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 <dm.h>
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#include <spl.h>
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#include <asm/u-boot.h>
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#include <nand.h>
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#include <fat.h>
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#include <version.h>
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#include <i2c.h>
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#include <image.h>
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#include <malloc.h>
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#include <dm/root.h>
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#include <linux/compiler.h>
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DECLARE_GLOBAL_DATA_PTR;
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#ifndef CONFIG_SYS_UBOOT_START
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#define CONFIG_SYS_UBOOT_START CONFIG_SYS_TEXT_BASE
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#endif
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#ifndef CONFIG_SYS_MONITOR_LEN
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/* Unknown U-Boot size, let's assume it will not be more than 200 KB */
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#define CONFIG_SYS_MONITOR_LEN (200 * 1024)
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#endif
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u32 *boot_params_ptr = NULL;
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struct spl_image_info spl_image;
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/* Define board data structure */
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static bd_t bdata __attribute__ ((section(".data")));
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/*
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* Board-specific Platform code can reimplement show_boot_progress () if needed
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*/
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__weak void show_boot_progress(int val) {}
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/*
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* Default function to determine if u-boot or the OS should
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* be started. This implementation always returns 1.
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*
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* Please implement your own board specific funcion to do this.
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*
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* RETURN
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* 0 to not start u-boot
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* positive if u-boot should start
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*/
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#ifdef CONFIG_SPL_OS_BOOT
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__weak int spl_start_uboot(void)
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{
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puts("SPL: Please implement spl_start_uboot() for your board\n");
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puts("SPL: Direct Linux boot not active!\n");
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return 1;
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}
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#endif
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/*
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* Weak default function for board specific cleanup/preparation before
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* Linux boot. Some boards/platforms might not need it, so just provide
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* an empty stub here.
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*/
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__weak void spl_board_prepare_for_linux(void)
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{
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/* Nothing to do! */
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}
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__weak void spl_board_prepare_for_boot(void)
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{
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/* Nothing to do! */
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}
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void spl_set_header_raw_uboot(void)
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{
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spl_image.size = CONFIG_SYS_MONITOR_LEN;
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spl_image.entry_point = CONFIG_SYS_UBOOT_START;
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spl_image.load_addr = CONFIG_SYS_TEXT_BASE;
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spl_image.os = IH_OS_U_BOOT;
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spl_image.name = "U-Boot";
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}
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int spl_parse_image_header(const struct image_header *header)
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{
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u32 header_size = sizeof(struct image_header);
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if (image_get_magic(header) == IH_MAGIC) {
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if (spl_image.flags & SPL_COPY_PAYLOAD_ONLY) {
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/*
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* On some system (e.g. powerpc), the load-address and
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* entry-point is located at address 0. We can't load
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* to 0-0x40. So skip header in this case.
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*/
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spl_image.load_addr = image_get_load(header);
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spl_image.entry_point = image_get_ep(header);
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spl_image.size = image_get_data_size(header);
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} else {
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spl_image.entry_point = image_get_load(header);
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/* Load including the header */
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spl_image.load_addr = spl_image.entry_point -
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header_size;
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spl_image.size = image_get_data_size(header) +
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header_size;
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}
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spl_image.os = image_get_os(header);
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spl_image.name = image_get_name(header);
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debug("spl: payload image: %.*s load addr: 0x%x size: %d\n",
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(int)sizeof(spl_image.name), spl_image.name,
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spl_image.load_addr, spl_image.size);
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} else {
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#ifdef CONFIG_SPL_PANIC_ON_RAW_IMAGE
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/*
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* CONFIG_SPL_PANIC_ON_RAW_IMAGE is defined when the
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* code which loads images in SPL cannot guarantee that
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* absolutely all read errors will be reported.
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* An example is the LPC32XX MLC NAND driver, which
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* will consider that a completely unreadable NAND block
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* is bad, and thus should be skipped silently.
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*/
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panic("** no mkimage signature but raw image not supported");
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#elif defined(CONFIG_SPL_ABORT_ON_RAW_IMAGE)
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/* Signature not found, proceed to other boot methods. */
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return -EINVAL;
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#else
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/* Signature not found - assume u-boot.bin */
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debug("mkimage signature not found - ih_magic = %x\n",
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header->ih_magic);
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spl_set_header_raw_uboot();
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#endif
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}
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return 0;
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}
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__weak void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image)
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{
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typedef void __noreturn (*image_entry_noargs_t)(void);
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image_entry_noargs_t image_entry =
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(image_entry_noargs_t)(unsigned long)spl_image->entry_point;
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debug("image entry point: 0x%X\n", spl_image->entry_point);
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image_entry();
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}
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#ifndef CONFIG_SPL_LOAD_FIT_ADDRESS
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# define CONFIG_SPL_LOAD_FIT_ADDRESS 0
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#endif
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#ifdef CONFIG_SPL_RAM_DEVICE
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static ulong spl_ram_load_read(struct spl_load_info *load, ulong sector,
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ulong count, void *buf)
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{
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debug("%s: sector %lx, count %lx, buf %lx\n",
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__func__, sector, count, (ulong)buf);
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memcpy(buf, (void *)(CONFIG_SPL_LOAD_FIT_ADDRESS + sector), count);
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return count;
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}
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static int spl_ram_load_image(void)
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{
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struct image_header *header;
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header = (struct image_header *)CONFIG_SPL_LOAD_FIT_ADDRESS;
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if (IS_ENABLED(CONFIG_SPL_LOAD_FIT) &&
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image_get_magic(header) == FDT_MAGIC) {
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struct spl_load_info load;
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debug("Found FIT\n");
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load.bl_len = 1;
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load.read = spl_ram_load_read;
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spl_load_simple_fit(&load, 0, header);
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} else {
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debug("Legacy image\n");
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/*
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* Get the header. It will point to an address defined by
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* handoff which will tell where the image located inside
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* the flash. For now, it will temporary fixed to address
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* pointed by U-Boot.
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*/
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header = (struct image_header *)
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(CONFIG_SYS_TEXT_BASE - sizeof(struct image_header));
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spl_parse_image_header(header);
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}
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return 0;
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}
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#endif
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int spl_init(void)
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{
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int ret;
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debug("spl_init()\n");
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#if defined(CONFIG_SYS_MALLOC_F_LEN)
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#ifdef CONFIG_MALLOC_F_ADDR
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gd->malloc_base = CONFIG_MALLOC_F_ADDR;
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#endif
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gd->malloc_limit = CONFIG_SYS_MALLOC_F_LEN;
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gd->malloc_ptr = 0;
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#endif
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if (CONFIG_IS_ENABLED(OF_CONTROL)) {
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ret = fdtdec_setup();
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if (ret) {
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debug("fdtdec_setup() returned error %d\n", ret);
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return ret;
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}
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}
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if (IS_ENABLED(CONFIG_SPL_DM)) {
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ret = dm_init_and_scan(true);
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if (ret) {
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debug("dm_init_and_scan() returned error %d\n", ret);
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return ret;
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}
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}
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gd->flags |= GD_FLG_SPL_INIT;
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return 0;
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}
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#ifndef BOOT_DEVICE_NONE
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#define BOOT_DEVICE_NONE 0xdeadbeef
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#endif
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static u32 spl_boot_list[] = {
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BOOT_DEVICE_NONE,
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BOOT_DEVICE_NONE,
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BOOT_DEVICE_NONE,
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BOOT_DEVICE_NONE,
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BOOT_DEVICE_NONE,
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};
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__weak void board_boot_order(u32 *spl_boot_list)
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{
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spl_boot_list[0] = spl_boot_device();
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}
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#ifdef CONFIG_SPL_BOARD_LOAD_IMAGE
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__weak void spl_board_announce_boot_device(void) { }
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#endif
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#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
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struct boot_device_name {
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u32 boot_dev;
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const char *name;
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};
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struct boot_device_name boot_name_table[] = {
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#ifdef CONFIG_SPL_RAM_DEVICE
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{ BOOT_DEVICE_RAM, "RAM" },
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#endif
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#ifdef CONFIG_SPL_MMC_SUPPORT
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{ BOOT_DEVICE_MMC1, "MMC1" },
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{ BOOT_DEVICE_MMC2, "MMC2" },
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{ BOOT_DEVICE_MMC2_2, "MMC2_2" },
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#endif
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#ifdef CONFIG_SPL_NAND_SUPPORT
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{ BOOT_DEVICE_NAND, "NAND" },
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#endif
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#ifdef CONFIG_SPL_ONENAND_SUPPORT
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{ BOOT_DEVICE_ONENAND, "OneNAND" },
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#endif
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#ifdef CONFIG_SPL_NOR_SUPPORT
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{ BOOT_DEVICE_NOR, "NOR" },
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#endif
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#ifdef CONFIG_SPL_YMODEM_SUPPORT
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{ BOOT_DEVICE_UART, "UART" },
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#endif
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#ifdef CONFIG_SPL_SPI_SUPPORT
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{ BOOT_DEVICE_SPI, "SPI" },
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#endif
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#ifdef CONFIG_SPL_ETH_SUPPORT
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#ifdef CONFIG_SPL_ETH_DEVICE
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{ BOOT_DEVICE_CPGMAC, "eth device" },
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#else
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{ BOOT_DEVICE_CPGMAC, "net" },
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#endif
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#endif
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#ifdef CONFIG_SPL_USBETH_SUPPORT
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{ BOOT_DEVICE_USBETH, "USB eth" },
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#endif
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#ifdef CONFIG_SPL_USB_SUPPORT
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{ BOOT_DEVICE_USB, "USB" },
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#endif
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#ifdef CONFIG_SPL_SATA_SUPPORT
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{ BOOT_DEVICE_SATA, "SATA" },
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#endif
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/* Keep this entry last */
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{ BOOT_DEVICE_NONE, "unknown boot device" },
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};
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static void announce_boot_device(u32 boot_device)
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{
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int i;
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puts("Trying to boot from ");
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#ifdef CONFIG_SPL_BOARD_LOAD_IMAGE
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if (boot_device == BOOT_DEVICE_BOARD) {
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spl_board_announce_boot_device();
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puts("\n");
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return;
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}
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#endif
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for (i = 0; i < ARRAY_SIZE(boot_name_table) - 1; i++) {
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if (boot_name_table[i].boot_dev == boot_device)
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break;
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}
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printf("%s\n", boot_name_table[i].name);
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}
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#else
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static inline void announce_boot_device(u32 boot_device) { }
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#endif
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static int spl_load_image(u32 boot_device)
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{
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switch (boot_device) {
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#ifdef CONFIG_SPL_RAM_DEVICE
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case BOOT_DEVICE_RAM:
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return spl_ram_load_image();
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#endif
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#ifdef CONFIG_SPL_MMC_SUPPORT
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case BOOT_DEVICE_MMC1:
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case BOOT_DEVICE_MMC2:
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case BOOT_DEVICE_MMC2_2:
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return spl_mmc_load_image(boot_device);
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#endif
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#ifdef CONFIG_SPL_NAND_SUPPORT
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case BOOT_DEVICE_NAND:
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return spl_nand_load_image();
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#endif
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#ifdef CONFIG_SPL_ONENAND_SUPPORT
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case BOOT_DEVICE_ONENAND:
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return spl_onenand_load_image();
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#endif
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#ifdef CONFIG_SPL_NOR_SUPPORT
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case BOOT_DEVICE_NOR:
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return spl_nor_load_image();
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#endif
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#ifdef CONFIG_SPL_YMODEM_SUPPORT
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case BOOT_DEVICE_UART:
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return spl_ymodem_load_image();
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#endif
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#ifdef CONFIG_SPL_SPI_SUPPORT
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case BOOT_DEVICE_SPI:
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return spl_spi_load_image();
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#endif
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#ifdef CONFIG_SPL_ETH_SUPPORT
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case BOOT_DEVICE_CPGMAC:
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#ifdef CONFIG_SPL_ETH_DEVICE
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return spl_net_load_image(CONFIG_SPL_ETH_DEVICE);
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#else
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return spl_net_load_image(NULL);
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#endif
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#endif
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#ifdef CONFIG_SPL_USBETH_SUPPORT
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case BOOT_DEVICE_USBETH:
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return spl_net_load_image("usb_ether");
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#endif
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#ifdef CONFIG_SPL_USB_SUPPORT
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case BOOT_DEVICE_USB:
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return spl_usb_load_image();
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#endif
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#ifdef CONFIG_SPL_SATA_SUPPORT
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case BOOT_DEVICE_SATA:
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return spl_sata_load_image();
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#endif
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#ifdef CONFIG_SPL_BOARD_LOAD_IMAGE
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case BOOT_DEVICE_BOARD:
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return spl_board_load_image();
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#endif
|
||
|
|
default:
|
||
|
|
#if defined(CONFIG_SPL_SERIAL_SUPPORT) && defined(CONFIG_SPL_LIBCOMMON_SUPPORT)
|
||
|
|
puts("SPL: Unsupported Boot Device!\n");
|
||
|
|
#endif
|
||
|
|
return -ENODEV;
|
||
|
|
}
|
||
|
|
|
||
|
|
return -EINVAL;
|
||
|
|
}
|
||
|
|
|
||
|
|
void board_init_r(gd_t *dummy1, ulong dummy2)
|
||
|
|
{
|
||
|
|
int i;
|
||
|
|
|
||
|
|
debug(">>spl:board_init_r()\n");
|
||
|
|
|
||
|
|
#if defined(CONFIG_SYS_SPL_MALLOC_START)
|
||
|
|
mem_malloc_init(CONFIG_SYS_SPL_MALLOC_START,
|
||
|
|
CONFIG_SYS_SPL_MALLOC_SIZE);
|
||
|
|
gd->flags |= GD_FLG_FULL_MALLOC_INIT;
|
||
|
|
#endif
|
||
|
|
if (!(gd->flags & GD_FLG_SPL_INIT)) {
|
||
|
|
if (spl_init())
|
||
|
|
hang();
|
||
|
|
}
|
||
|
|
#ifndef CONFIG_PPC
|
||
|
|
/*
|
||
|
|
* timer_init() does not exist on PPC systems. The timer is initialized
|
||
|
|
* and enabled (decrementer) in interrupt_init() here.
|
||
|
|
*/
|
||
|
|
timer_init();
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef CONFIG_SPL_BOARD_INIT
|
||
|
|
spl_board_init();
|
||
|
|
#endif
|
||
|
|
|
||
|
|
board_boot_order(spl_boot_list);
|
||
|
|
for (i = 0; i < ARRAY_SIZE(spl_boot_list) &&
|
||
|
|
spl_boot_list[i] != BOOT_DEVICE_NONE; i++) {
|
||
|
|
announce_boot_device(spl_boot_list[i]);
|
||
|
|
if (!spl_load_image(spl_boot_list[i]))
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (i == ARRAY_SIZE(spl_boot_list) ||
|
||
|
|
spl_boot_list[i] == BOOT_DEVICE_NONE) {
|
||
|
|
puts("SPL: failed to boot from all boot devices\n");
|
||
|
|
hang();
|
||
|
|
}
|
||
|
|
|
||
|
|
switch (spl_image.os) {
|
||
|
|
case IH_OS_U_BOOT:
|
||
|
|
debug("Jumping to U-Boot\n");
|
||
|
|
break;
|
||
|
|
#ifdef CONFIG_SPL_OS_BOOT
|
||
|
|
case IH_OS_LINUX:
|
||
|
|
debug("Jumping to Linux\n");
|
||
|
|
spl_board_prepare_for_linux();
|
||
|
|
jump_to_image_linux((void *)CONFIG_SYS_SPL_ARGS_ADDR);
|
||
|
|
#endif
|
||
|
|
default:
|
||
|
|
debug("Unsupported OS image.. Jumping nevertheless..\n");
|
||
|
|
}
|
||
|
|
#if defined(CONFIG_SYS_MALLOC_F_LEN) && !defined(CONFIG_SYS_SPL_MALLOC_SIZE)
|
||
|
|
debug("SPL malloc() used %#lx bytes (%ld KB)\n", gd->malloc_ptr,
|
||
|
|
gd->malloc_ptr / 1024);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
debug("loaded - jumping to U-Boot...");
|
||
|
|
spl_board_prepare_for_boot();
|
||
|
|
jump_to_image_no_args(&spl_image);
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* This requires UART clocks to be enabled. In order for this to work the
|
||
|
|
* caller must ensure that the gd pointer is valid.
|
||
|
|
*/
|
||
|
|
void preloader_console_init(void)
|
||
|
|
{
|
||
|
|
gd->bd = &bdata;
|
||
|
|
gd->baudrate = CONFIG_BAUDRATE;
|
||
|
|
|
||
|
|
serial_init(); /* serial communications setup */
|
||
|
|
|
||
|
|
gd->have_console = 1;
|
||
|
|
|
||
|
|
puts("\nU-Boot SPL " PLAIN_VERSION " (" U_BOOT_DATE " - " \
|
||
|
|
U_BOOT_TIME ")\n");
|
||
|
|
#ifdef CONFIG_SPL_DISPLAY_PRINT
|
||
|
|
spl_display_print();
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* spl_relocate_stack_gd() - Relocate stack ready for board_init_r() execution
|
||
|
|
*
|
||
|
|
* Sometimes board_init_f() runs with a stack in SRAM but we want to use SDRAM
|
||
|
|
* for the main board_init_r() execution. This is typically because we need
|
||
|
|
* more stack space for things like the MMC sub-system.
|
||
|
|
*
|
||
|
|
* This function calculates the stack position, copies the global_data into
|
||
|
|
* place, sets the new gd (except for ARM, for which setting GD within a C
|
||
|
|
* function may not always work) and returns the new stack position. The
|
||
|
|
* caller is responsible for setting up the sp register and, in the case
|
||
|
|
* of ARM, setting up gd.
|
||
|
|
*
|
||
|
|
* All of this is done using the same layout and alignments as done in
|
||
|
|
* board_init_f_init_reserve() / board_init_f_alloc_reserve().
|
||
|
|
*
|
||
|
|
* @return new stack location, or 0 to use the same stack
|
||
|
|
*/
|
||
|
|
ulong spl_relocate_stack_gd(void)
|
||
|
|
{
|
||
|
|
#ifdef CONFIG_SPL_STACK_R
|
||
|
|
gd_t *new_gd;
|
||
|
|
ulong ptr = CONFIG_SPL_STACK_R_ADDR;
|
||
|
|
|
||
|
|
#ifdef CONFIG_SPL_SYS_MALLOC_SIMPLE
|
||
|
|
if (CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN) {
|
||
|
|
ptr -= CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN;
|
||
|
|
gd->malloc_base = ptr;
|
||
|
|
gd->malloc_limit = CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN;
|
||
|
|
gd->malloc_ptr = 0;
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
/* Get stack position: use 8-byte alignment for ABI compliance */
|
||
|
|
ptr = CONFIG_SPL_STACK_R_ADDR - roundup(sizeof(gd_t),16);
|
||
|
|
new_gd = (gd_t *)ptr;
|
||
|
|
memcpy(new_gd, (void *)gd, sizeof(gd_t));
|
||
|
|
#if !defined(CONFIG_ARM)
|
||
|
|
gd = new_gd;
|
||
|
|
#endif
|
||
|
|
return ptr;
|
||
|
|
#else
|
||
|
|
return 0;
|
||
|
|
#endif
|
||
|
|
}
|