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https://source.denx.de/u-boot/u-boot.git
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37b0b22d8b
Unlike ARM and X86, booting 32-bit images on 64-bit CPUs is currently not supported for Risc-V. Hence, for bootm, disallow booting a FIT or a legacy image that was built for an arch type which is different than the current arch and for booti, set the arch type to be the same as the current arch. Signed-off-by: Mayuresh Chitale <mchitale@ventanamicro.com> Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
136 lines
3.1 KiB
C
136 lines
3.1 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2011 Andes Technology Corporation
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* Shawn Lin, Andes Technology Corporation <nobuhiro@andestech.com>
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* Macpaul Lin, Andes Technology Corporation <macpaul@andestech.com>
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* Rick Chen, Andes Technology Corporation <rick@andestech.com>
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*/
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#include <bootstage.h>
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#include <bootm.h>
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#include <command.h>
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#include <dm.h>
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#include <fdt_support.h>
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#include <hang.h>
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#include <log.h>
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#include <asm/global_data.h>
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#include <dm/root.h>
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#include <image.h>
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#include <asm/byteorder.h>
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#include <asm/csr.h>
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#include <asm/smp.h>
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#include <dm/device.h>
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#include <dm/root.h>
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#include <u-boot/zlib.h>
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DECLARE_GLOBAL_DATA_PTR;
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__weak void board_quiesce_devices(void)
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{
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}
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/**
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* announce_and_cleanup() - Print message and prepare for kernel boot
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*
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* @fake: non-zero to do everything except actually boot
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*/
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static void announce_and_cleanup(int fake)
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{
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printf("\nStarting kernel ...%s\n\n", fake ?
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"(fake run for tracing)" : "");
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bootstage_mark_name(BOOTSTAGE_ID_BOOTM_HANDOFF, "start_kernel");
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#ifdef CONFIG_BOOTSTAGE_FDT
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bootstage_fdt_add_report();
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#endif
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#if CONFIG_IS_ENABLED(BOOTSTAGE_REPORT)
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bootstage_report();
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#endif
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board_quiesce_devices();
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/*
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* Call remove function of all devices with a removal flag set.
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* This may be useful for last-stage operations, like cancelling
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* of DMA operation or releasing device internal buffers.
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*/
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dm_remove_devices_active();
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cleanup_before_linux();
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}
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static void boot_prep_linux(struct bootm_headers *images)
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{
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if (CONFIG_IS_ENABLED(OF_LIBFDT) && IS_ENABLED(CONFIG_LMB) && images->ft_len) {
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debug("using: FDT\n");
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if (image_setup_linux(images)) {
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printf("FDT creation failed! hanging...");
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hang();
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}
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} else {
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printf("Device tree not found or missing FDT support\n");
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hang();
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}
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}
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static void boot_jump_linux(struct bootm_headers *images, int flag)
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{
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void (*kernel)(ulong hart, void *dtb);
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int fake = (flag & BOOTM_STATE_OS_FAKE_GO);
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#ifdef CONFIG_SMP
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int ret;
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#endif
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kernel = (void (*)(ulong, void *))images->ep;
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bootstage_mark(BOOTSTAGE_ID_RUN_OS);
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debug("## Transferring control to kernel (at address %08lx) ...\n",
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(ulong)kernel);
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announce_and_cleanup(fake);
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if (!fake) {
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if (images->os.arch != IH_ARCH_DEFAULT) {
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printf("Image arch not compatible with host arch.\n");
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hang();
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}
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if (CONFIG_IS_ENABLED(OF_LIBFDT) && images->ft_len) {
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#ifdef CONFIG_SMP
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ret = smp_call_function(images->ep,
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(ulong)images->ft_addr, 0, 0);
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if (ret)
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hang();
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#endif
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kernel(gd->arch.boot_hart, images->ft_addr);
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}
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}
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}
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int do_bootm_linux(int flag, struct bootm_info *bmi)
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{
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struct bootm_headers *images = bmi->images;
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/* No need for those on RISC-V */
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if (flag & BOOTM_STATE_OS_BD_T || flag & BOOTM_STATE_OS_CMDLINE)
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return -1;
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if (flag & BOOTM_STATE_OS_PREP) {
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boot_prep_linux(images);
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return 0;
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}
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if (flag & (BOOTM_STATE_OS_GO | BOOTM_STATE_OS_FAKE_GO)) {
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boot_jump_linux(images, flag);
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return 0;
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}
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boot_prep_linux(images);
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boot_jump_linux(images, flag);
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return 0;
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}
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int do_bootm_vxworks(int flag, struct bootm_info *bmi)
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{
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return do_bootm_linux(flag, bmi);
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}
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