* (C) Copyright 2002
* Daniel Engström, Omicron Ceti AB, <daniel@omicron.se>
*
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
+ * SPDX-License-Identifier: GPL-2.0+
*/
/*
#include <asm/io.h>
#include <asm/ptrace.h>
#include <asm/zimage.h>
-#include <asm/realmode.h>
#include <asm/byteorder.h>
#include <asm/bootparam.h>
+#ifdef CONFIG_SYS_COREBOOT
+#include <asm/arch/timestamp.h>
+#endif
+#include <linux/compiler.h>
/*
* Memory lay-out:
else
*load_address = (void *)ZIMAGE_LOAD_ADDR;
-#if defined CONFIG_ZBOOT_32
printf("Building boot_params at 0x%8.8lx\n", (ulong)setup_base);
memset(setup_base, 0, sizeof(*setup_base));
setup_base->hdr = params->hdr;
-#else
- /* load setup */
- printf("Moving Real-Mode Code to 0x%8.8lx (%d bytes)\n",
- (ulong)setup_base, setup_size);
- memmove(setup_base, image, setup_size);
-#endif
if (bootproto >= 0x0204)
kernel_size = hdr->syssize * 16;
struct setup_header *hdr = &setup_base->hdr;
int bootproto = get_boot_protocol(hdr);
-#if defined CONFIG_ZBOOT_32
setup_base->e820_entries = install_e820_map(
ARRAY_SIZE(setup_base->e820_map), setup_base->e820_map);
-#endif
if (bootproto == 0x0100) {
setup_base->screen_info.cl_magic = COMMAND_LINE_MAGIC;
return 0;
}
+/*
+ * Implement a weak default function for boards that optionally
+ * need to clean up the system before jumping to the kernel.
+ */
+__weak void board_final_cleanup(void)
+{
+}
+
void boot_zimage(void *setup_base, void *load_address)
{
+ debug("## Transferring control to Linux (at address %08x) ...\n",
+ (u32)setup_base);
+
+ bootstage_mark_name(BOOTSTAGE_ID_BOOTM_HANDOFF, "start_kernel");
+#ifdef CONFIG_BOOTSTAGE_REPORT
+ bootstage_report();
+#endif
+ board_final_cleanup();
+
printf("\nStarting kernel ...\n\n");
-#if defined CONFIG_ZBOOT_32
+#ifdef CONFIG_SYS_COREBOOT
+ timestamp_add_now(TS_U_BOOT_START_KERNEL);
+#endif
/*
* Set %ebx, %ebp, and %edi to 0, %esi to point to the boot_params
* structure, and then jump to the kernel. We assume that %cs is
* itself in arch/i386/cpu/cpu.c.
*/
__asm__ __volatile__ (
- "movl $0, %%ebp \n"
- "cli \n"
- "jmp %[kernel_entry] \n"
+ "movl $0, %%ebp\n"
+ "cli\n"
+ "jmp *%[kernel_entry]\n"
:: [kernel_entry]"a"(load_address),
[boot_params] "S"(setup_base),
"b"(0), "D"(0)
: "%ebp"
);
-#else
- struct pt_regs regs;
-
- memset(®s, 0, sizeof(struct pt_regs));
- regs.xds = (u32)setup_base >> 4;
- regs.xes = regs.xds;
- regs.xss = regs.xds;
- regs.esp = 0x9000;
- regs.eflags = 0;
- enter_realmode(((u32)setup_base + SETUP_START_OFFSET) >> 4, 0,
- ®s, ®s);
-#endif
+}
+
+void setup_pcat_compatibility(void)
+ __attribute__((weak, alias("__setup_pcat_compatibility")));
+
+void __setup_pcat_compatibility(void)
+{
}
int do_zboot(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
void *load_address;
char *s;
ulong bzImage_size = 0;
+ ulong initrd_addr = 0;
+ ulong initrd_size = 0;
disable_interrupts();
if (s)
bzImage_addr = (void *)simple_strtoul(s, NULL, 16);
- if (argc >= 3)
+ if (argc >= 3) {
/* argv[2] holds the size of the bzImage */
bzImage_size = simple_strtoul(argv[2], NULL, 16);
+ }
+
+ if (argc >= 4)
+ initrd_addr = simple_strtoul(argv[3], NULL, 16);
+ if (argc >= 5)
+ initrd_size = simple_strtoul(argv[4], NULL, 16);
/* Lets look for */
base_ptr = load_zimage(bzImage_addr, bzImage_size, &load_address);
return -1;
}
if (setup_zimage(base_ptr, (char *)base_ptr + COMMAND_LINE_OFFSET,
- 0, 0, 0)) {
+ 0, initrd_addr, initrd_size)) {
printf("Setting up boot parameters failed ...\n");
return -1;
}
- printf("## Transferring control to Linux "
- "(at address %08x) ...\n",
- (u32)base_ptr);
-
/* we assume that the kernel is in place */
boot_zimage(base_ptr, load_address);
/* does not return */
}
U_BOOT_CMD(
- zboot, 2, 0, do_zboot,
+ zboot, 5, 0, do_zboot,
"Boot bzImage",
- ""
+ "[addr] [size] [initrd addr] [initrd size]\n"
+ " addr - The optional starting address of the bzimage.\n"
+ " If not set it defaults to the environment\n"
+ " variable \"fileaddr\".\n"
+ " size - The optional size of the bzimage. Defaults to\n"
+ " zero.\n"
+ " initrd addr - The address of the initrd image to use, if any.\n"
+ " initrd size - The size of the initrd image to use, if any.\n"
);
projects / u-boot / blobdiff