mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-04 18:41:03 +00:00
136 lines
3 KiB
C
136 lines
3 KiB
C
// 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 <bootstage.h>
|
|
#include <command.h>
|
|
#include <dm.h>
|
|
#include <fdt_support.h>
|
|
#include <hang.h>
|
|
#include <log.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)
|
|
{
|
|
}
|
|
|
|
/**
|
|
* 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);
|
|
}
|