+// 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>
- *
- * SPDX-License-Identifier: GPL-2.0+
*/
#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 <u-boot/zlib.h>
#include <asm/byteorder.h>
-#include <asm/bootm.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;
-int arch_fixup_fdt(void *blob)
+__weak void board_quiesce_devices(void)
{
- return 0;
}
-int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images)
+/**
+ * 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)
{
- bd_t *bd = gd->bd;
- char *s;
- int machid = bd->bi_arch_number;
- void (*theKernel)(int arch, uint params);
-
- /*
- * allow the PREP bootm subcommand, it is required for bootm to work
- */
- if (flag & BOOTM_STATE_OS_PREP)
- return 0;
-
- if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
- return 1;
+ 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
- theKernel = (void (*)(int, uint))images->ep;
+#ifdef CONFIG_USB_DEVICE
+ udc_disconnect();
+#endif
- s = env_get("machid");
- if (s) {
- machid = simple_strtoul(s, NULL, 16);
- printf("Using machid 0x%x from environment\n", machid);
- }
+ board_quiesce_devices();
- bootstage_mark(BOOTSTAGE_ID_RUN_OS);
+ /*
+ * 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);
- debug("## Transferring control to Linux (at address %08lx) ...\n",
- (ulong)theKernel);
+ 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");
hang();
}
#endif
+ } else {
+ printf("Device tree not found or missing FDT support\n");
+ hang();
}
+}
- /* we assume that the kernel is in place */
- printf("\nStarting kernel ...\n\n");
+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
- cleanup_before_linux();
- if (IMAGE_ENABLE_OF_LIBFDT && images->ft_len)
- theKernel(machid, (unsigned long)images->ft_addr);
+ 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);
+ }
+ }
+}
- /* does not return */
+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;
+ }
- return 1;
+ 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);
}