mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-10 21:26:19 +09:00
29a4a9f105
At present panic() is in the vsprintf.h header file. That does not seem like an obvious choice for hang(), even though it relates to panic(). So let's put hang() in its own header. Signed-off-by: Simon Glass <sjg@chromium.org> [trini: Migrate a few more files] Signed-off-by: Tom Rini <trini@konsulko.com>
99 lines
2.6 KiB
C
99 lines
2.6 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2019 Fraunhofer AISEC,
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* Lukas Auer <lukas.auer@aisec.fraunhofer.de>
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*
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* Based on common/spl/spl_atf.c
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*/
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#include <common.h>
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#include <cpu_func.h>
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#include <errno.h>
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#include <hang.h>
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#include <spl.h>
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#include <asm/smp.h>
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#include <opensbi.h>
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DECLARE_GLOBAL_DATA_PTR;
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struct fw_dynamic_info opensbi_info;
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static int spl_opensbi_find_uboot_node(void *blob, int *uboot_node)
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{
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int fit_images_node, node;
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const char *fit_os;
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fit_images_node = fdt_path_offset(blob, "/fit-images");
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if (fit_images_node < 0)
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return -ENODEV;
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fdt_for_each_subnode(node, blob, fit_images_node) {
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fit_os = fdt_getprop(blob, node, FIT_OS_PROP, NULL);
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if (!fit_os)
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continue;
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if (genimg_get_os_id(fit_os) == IH_OS_U_BOOT) {
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*uboot_node = node;
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return 0;
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}
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}
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return -ENODEV;
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}
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void spl_invoke_opensbi(struct spl_image_info *spl_image)
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{
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int ret, uboot_node;
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ulong uboot_entry;
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void (*opensbi_entry)(ulong hartid, ulong dtb, ulong info);
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if (!spl_image->fdt_addr) {
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pr_err("No device tree specified in SPL image\n");
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hang();
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}
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/* Find U-Boot image in /fit-images */
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ret = spl_opensbi_find_uboot_node(spl_image->fdt_addr, &uboot_node);
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if (ret) {
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pr_err("Can't find U-Boot node, %d", ret);
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hang();
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}
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/* Get U-Boot entry point */
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uboot_entry = fdt_getprop_u32(spl_image->fdt_addr, uboot_node,
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"entry-point");
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if (uboot_entry == FDT_ERROR)
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uboot_entry = fdt_getprop_u32(spl_image->fdt_addr, uboot_node,
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"load-addr");
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/* Prepare obensbi_info object */
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opensbi_info.magic = FW_DYNAMIC_INFO_MAGIC_VALUE;
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opensbi_info.version = FW_DYNAMIC_INFO_VERSION;
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opensbi_info.next_addr = uboot_entry;
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opensbi_info.next_mode = FW_DYNAMIC_INFO_NEXT_MODE_S;
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opensbi_info.options = SBI_SCRATCH_NO_BOOT_PRINTS;
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opensbi_info.boot_hart = gd->arch.boot_hart;
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opensbi_entry = (void (*)(ulong, ulong, ulong))spl_image->entry_point;
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invalidate_icache_all();
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#ifdef CONFIG_SMP
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/*
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* Start OpenSBI on all secondary harts and wait for acknowledgment.
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*
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* OpenSBI first relocates itself to its link address. This is done by
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* the main hart. To make sure no hart is still running U-Boot SPL
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* during relocation, we wait for all secondary harts to acknowledge
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* the call-function request before entering OpenSBI on the main hart.
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* Otherwise, code corruption can occur if the link address ranges of
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* U-Boot SPL and OpenSBI overlap.
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*/
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ret = smp_call_function((ulong)spl_image->entry_point,
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(ulong)spl_image->fdt_addr,
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(ulong)&opensbi_info, 1);
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if (ret)
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hang();
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#endif
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opensbi_entry(gd->arch.boot_hart, (ulong)spl_image->fdt_addr,
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(ulong)&opensbi_info);
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}
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