+// 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;
}
-#if defined(CONFIG_SETUP_MEMORY_TAGS) || \
- defined(CONFIG_CMDLINE_TAG) || \
- defined(CONFIG_INITRD_TAG) || \
- defined(CONFIG_SERIAL_TAG) || \
- defined(CONFIG_REVISION_TAG)
-static void setup_start_tag(bd_t *bd);
-
-# ifdef CONFIG_SETUP_MEMORY_TAGS
-static void setup_memory_tags(bd_t *bd);
-# endif
-static void setup_commandline_tag(bd_t *bd, char *commandline);
-
-# ifdef CONFIG_INITRD_TAG
-static void setup_initrd_tag(bd_t *bd, ulong initrd_start, ulong initrd_end);
-# endif
-static void setup_end_tag(bd_t *bd);
-
-static struct tag *params;
-#endif /* CONFIG_SETUP_MEMORY_TAGS || CONFIG_CMDLINE_TAG || CONFIG_INITRD_TAG */
-
-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 zero, int arch, uint params);
+ 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_CMDLINE_TAG
- char *commandline = env_get("bootargs");
+#ifdef CONFIG_USB_DEVICE
+ udc_disconnect();
#endif
+ board_quiesce_devices();
+
/*
- * allow the PREP bootm subcommand, it is required for bootm to work
+ * 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.
*/
- if (flag & BOOTM_STATE_OS_PREP)
- return 0;
-
- if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
- return 1;
-
- theKernel = (void (*)(int, int, uint))images->ep;
+ dm_remove_devices_flags(DM_REMOVE_ACTIVE_ALL);
- s = env_get("machid");
- if (s) {
- machid = simple_strtoul(s, NULL, 16);
- printf("Using machid 0x%x from environment\n", machid);
- }
-
- bootstage_mark(BOOTSTAGE_ID_RUN_OS);
-
- 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 if (BOOTM_ENABLE_TAGS) {
-#if defined(CONFIG_SETUP_MEMORY_TAGS) || \
- defined(CONFIG_CMDLINE_TAG) || \
- defined(CONFIG_INITRD_TAG) || \
- defined(CONFIG_SERIAL_TAG) || \
- defined(CONFIG_REVISION_TAG)
- setup_start_tag(bd);
-#ifdef CONFIG_SERIAL_TAG
- setup_serial_tag(¶ms);
-#endif
-#ifdef CONFIG_REVISION_TAG
- setup_revision_tag(¶ms);
-#endif
-#ifdef CONFIG_SETUP_MEMORY_TAGS
- setup_memory_tags(bd);
-#endif
-#ifdef CONFIG_CMDLINE_TAG
- setup_commandline_tag(bd, commandline);
-#endif
-#ifdef CONFIG_INITRD_TAG
- if (images->rd_start && images->rd_end)
- setup_initrd_tag(bd, images->rd_start, images->rd_end);
-#endif
- setup_end_tag(bd);
-#endif
-
- /* we assume that the kernel is in place */
- printf("\nStarting kernel ...\n\n");
-
-#ifdef CONFIG_USB_DEVICE
- {
- extern void udc_disconnect(void);
- udc_disconnect();
- }
-#endif
+ } else {
+ printf("Device tree not found or missing FDT support\n");
+ hang();
}
- cleanup_before_linux();
- if (IMAGE_ENABLE_OF_LIBFDT && images->ft_len)
- theKernel(0, machid, (unsigned long)images->ft_addr);
- else
- theKernel(0, machid, bd->bi_boot_params);
- /* does not return */
-
- return 1;
}
-#if defined(CONFIG_SETUP_MEMORY_TAGS) || \
- defined(CONFIG_CMDLINE_TAG) || \
- defined(CONFIG_INITRD_TAG) || \
- defined(CONFIG_SERIAL_TAG) || \
- defined(CONFIG_REVISION_TAG)
-static void setup_start_tag(bd_t *bd)
+static void boot_jump_linux(bootm_headers_t *images, int flag)
{
- params = (struct tag *)bd->bi_boot_params;
-
- params->hdr.tag = ATAG_CORE;
- params->hdr.size = tag_size(tag_core);
-
- params->u.core.flags = 0;
- params->u.core.pagesize = 0;
- params->u.core.rootdev = 0;
+ void (*kernel)(ulong hart, void *dtb);
+ int fake = (flag & BOOTM_STATE_OS_FAKE_GO);
+#ifdef CONFIG_SMP
+ int ret;
+#endif
- params = tag_next(params);
-}
+ kernel = (void (*)(ulong, void *))images->ep;
-#ifdef CONFIG_SETUP_MEMORY_TAGS
-static void setup_memory_tags(bd_t *bd)
-{
- int i;
+ bootstage_mark(BOOTSTAGE_ID_RUN_OS);
- for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
- params->hdr.tag = ATAG_MEM;
- params->hdr.size = tag_size(tag_mem32);
+ debug("## Transferring control to kernel (at address %08lx) ...\n",
+ (ulong)kernel);
- params->u.mem.start = bd->bi_dram[i].start;
- params->u.mem.size = bd->bi_dram[i].size;
+ announce_and_cleanup(fake);
- params = tag_next(params);
+ 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);
+ }
}
}
-#endif /* CONFIG_SETUP_MEMORY_TAGS */
-
-static void setup_commandline_tag(bd_t *bd, char *commandline)
-{
- char *p;
-
- if (!commandline)
- return;
-
- /* eat leading white space */
- for (p = commandline; *p == ' '; p++)
- ;
-
- /* skip non-existent command lines so the kernel will still
- * use its default command line.
- */
- if (*p == '\0')
- return;
-
- params->hdr.tag = ATAG_CMDLINE;
- params->hdr.size =
- (sizeof(struct tag_header) + strlen(p) + 1 + 4) >> 2;
-
- strcpy(params->u.cmdline.cmdline, p)
- ;
-
- params = tag_next(params);
-}
-#ifdef CONFIG_INITRD_TAG
-static void setup_initrd_tag(bd_t *bd, ulong initrd_start, ulong initrd_end)
+int do_bootm_linux(int flag, int argc, char *const argv[],
+ bootm_headers_t *images)
{
- /* an ATAG_INITRD node tells the kernel where the compressed
- * ramdisk can be found. ATAG_RDIMG is a better name, actually.
- */
- params->hdr.tag = ATAG_INITRD2;
- params->hdr.size = tag_size(tag_initrd);
+ /* No need for those on RISC-V */
+ if (flag & BOOTM_STATE_OS_BD_T || flag & BOOTM_STATE_OS_CMDLINE)
+ return -1;
- params->u.initrd.start = initrd_start;
- params->u.initrd.size = initrd_end - initrd_start;
-
- params = tag_next(params);
-}
-#endif /* CONFIG_INITRD_TAG */
+ if (flag & BOOTM_STATE_OS_PREP) {
+ boot_prep_linux(images);
+ return 0;
+ }
-#ifdef CONFIG_SERIAL_TAG
-void setup_serial_tag(struct tag **tmp)
-{
- struct tag *params;
- struct tag_serialnr serialnr;
- void get_board_serial(struct tag_serialnr *serialnr);
-
- params = *tmp;
- get_board_serial(&serialnr);
- params->hdr.tag = ATAG_SERIAL;
- params->hdr.size = tag_size(tag_serialnr);
- params->u.serialnr.low = serialnr.low;
- params->u.serialnr.high = serialnr.high;
- params = tag_next(params);
- *tmp = params;
-}
-#endif
+ if (flag & (BOOTM_STATE_OS_GO | BOOTM_STATE_OS_FAKE_GO)) {
+ boot_jump_linux(images, flag);
+ return 0;
+ }
-#ifdef CONFIG_REVISION_TAG
-void setup_revision_tag(struct tag **in_params)
-{
- u32 rev;
- u32 get_board_rev(void);
-
- rev = get_board_rev();
- params->hdr.tag = ATAG_REVISION;
- params->hdr.size = tag_size(tag_revision);
- params->u.revision.rev = rev;
- params = tag_next(params);
+ boot_prep_linux(images);
+ boot_jump_linux(images, flag);
+ return 0;
}
-#endif /* CONFIG_REVISION_TAG */
-static void setup_end_tag(bd_t *bd)
+int do_bootm_vxworks(int flag, int argc, char *const argv[],
+ bootm_headers_t *images)
{
- params->hdr.tag = ATAG_NONE;
- params->hdr.size = 0;
+ return do_bootm_linux(flag, argc, argv, images);
}
-
-#endif /* CONFIG_SETUP_MEMORY_TAGS || CONFIG_CMDLINE_TAG || CONFIG_INITRD_TAG */
projects / oweals / u-boot.git / blobdiff