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https://github.com/AsahiLinux/u-boot
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08337cd648
Register the 'bootm' function for booting VxWorks kernel for RISC-V architecture. Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
126 lines
2.8 KiB
C
126 lines
2.8 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 <common.h>
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#include <command.h>
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#include <dm.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 <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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int arch_fixup_fdt(void *blob)
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{
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return 0;
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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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#ifdef CONFIG_BOOTSTAGE_REPORT
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bootstage_report();
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#endif
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#ifdef CONFIG_USB_DEVICE
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udc_disconnect();
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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_flags(DM_REMOVE_ACTIVE_ALL);
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cleanup_before_linux();
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}
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static void boot_prep_linux(bootm_headers_t *images)
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{
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if (IMAGE_ENABLE_OF_LIBFDT && images->ft_len) {
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#ifdef CONFIG_OF_LIBFDT
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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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#endif
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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(bootm_headers_t *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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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 (IMAGE_ENABLE_OF_LIBFDT && images->ft_len)
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kernel(gd->arch.boot_hart, images->ft_addr);
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}
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}
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int do_bootm_linux(int flag, int argc, char * const argv[],
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bootm_headers_t *images)
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{
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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, int argc, char * const argv[],
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bootm_headers_t *images)
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{
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return do_bootm_linux(flag, argc, argv, images);
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}
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