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- // SPDX-License-Identifier: GPL-2.0+
- /*
- * Copyright (C) 2011 Andes Technology Corporation
- * Shawn Lin, Andes Technology Corporation <nobuhiro@andestech.com>
- * Macpaul Lin, Andes Technology Corporation <macpaul@andestech.com>
- * Rick Chen, Andes Technology Corporation <rick@andestech.com>
- */
- #include <common.h>
- #include <command.h>
- #include <dm.h>
- #include <fdt_support.h>
- #include <hang.h>
- #include <dm/root.h>
- #include <image.h>
- #include <asm/byteorder.h>
- #include <asm/csr.h>
- #include <asm/smp.h>
- #include <dm/device.h>
- #include <dm/root.h>
- #include <u-boot/zlib.h>
- DECLARE_GLOBAL_DATA_PTR;
- __weak void board_quiesce_devices(void)
- {
- }
- int arch_fixup_fdt(void *blob)
- {
- return 0;
- }
- /**
- * announce_and_cleanup() - Print message and prepare for kernel boot
- *
- * @fake: non-zero to do everything except actually boot
- */
- static void announce_and_cleanup(int fake)
- {
- printf("\nStarting kernel ...%s\n\n", fake ?
- "(fake run for tracing)" : "");
- bootstage_mark_name(BOOTSTAGE_ID_BOOTM_HANDOFF, "start_kernel");
- #ifdef CONFIG_BOOTSTAGE_FDT
- bootstage_fdt_add_report();
- #endif
- #ifdef CONFIG_BOOTSTAGE_REPORT
- bootstage_report();
- #endif
- #ifdef CONFIG_USB_DEVICE
- udc_disconnect();
- #endif
- board_quiesce_devices();
- /*
- * Call remove function of all devices with a removal flag set.
- * This may be useful for last-stage operations, like cancelling
- * of DMA operation or releasing device internal buffers.
- */
- dm_remove_devices_flags(DM_REMOVE_ACTIVE_ALL);
- cleanup_before_linux();
- }
- static void boot_prep_linux(bootm_headers_t *images)
- {
- if (IMAGE_ENABLE_OF_LIBFDT && images->ft_len) {
- #ifdef CONFIG_OF_LIBFDT
- debug("using: FDT\n");
- if (image_setup_linux(images)) {
- printf("FDT creation failed! hanging...");
- hang();
- }
- #endif
- } else {
- printf("Device tree not found or missing FDT support\n");
- hang();
- }
- }
- static void boot_jump_linux(bootm_headers_t *images, int flag)
- {
- void (*kernel)(ulong hart, void *dtb);
- int fake = (flag & BOOTM_STATE_OS_FAKE_GO);
- #ifdef CONFIG_SMP
- int ret;
- #endif
- kernel = (void (*)(ulong, void *))images->ep;
- bootstage_mark(BOOTSTAGE_ID_RUN_OS);
- debug("## Transferring control to kernel (at address %08lx) ...\n",
- (ulong)kernel);
- announce_and_cleanup(fake);
- if (!fake) {
- if (IMAGE_ENABLE_OF_LIBFDT && images->ft_len) {
- #ifdef CONFIG_SMP
- ret = smp_call_function(images->ep,
- (ulong)images->ft_addr, 0, 0);
- if (ret)
- hang();
- #endif
- kernel(gd->arch.boot_hart, images->ft_addr);
- }
- }
- }
- int do_bootm_linux(int flag, int argc, char * const argv[],
- bootm_headers_t *images)
- {
- /* No need for those on RISC-V */
- if (flag & BOOTM_STATE_OS_BD_T || flag & BOOTM_STATE_OS_CMDLINE)
- return -1;
- if (flag & BOOTM_STATE_OS_PREP) {
- boot_prep_linux(images);
- return 0;
- }
- if (flag & (BOOTM_STATE_OS_GO | BOOTM_STATE_OS_FAKE_GO)) {
- boot_jump_linux(images, flag);
- return 0;
- }
- boot_prep_linux(images);
- boot_jump_linux(images, flag);
- return 0;
- }
- int do_bootm_vxworks(int flag, int argc, char * const argv[],
- bootm_headers_t *images)
- {
- return do_bootm_linux(flag, argc, argv, images);
- }
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