* (c) Copyright 2008 Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
* (c) Copyright 2008 Renesas Solutions Corp.
*
- * 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 <common.h>
#include <command.h>
#include <asm/byteorder.h>
+#include <asm/zimage.h>
#ifdef CONFIG_SYS_DEBUG
static void hexdump(unsigned char *buf, int len)
}
#endif
+#ifdef CONFIG_SH_SDRAM_OFFSET
+#define GET_INITRD_START(initrd, linux) (initrd - linux + CONFIG_SH_SDRAM_OFFSET)
+#else
+#define GET_INITRD_START(initrd, linux) (initrd - linux)
+#endif
+
+static void set_sh_linux_param(unsigned long param_addr, unsigned long data)
+{
+ *(unsigned long *)(param_addr) = data;
+}
+
+static unsigned long sh_check_cmd_arg(char *cmdline, char *key, int base)
+{
+ unsigned long val = 0;
+ char *p = strstr(cmdline, key);
+ if (p) {
+ p += strlen(key);
+ val = simple_strtol(p, NULL, base);
+ }
+ return val;
+}
+
int do_bootm_linux(int flag, int argc, char * const argv[], bootm_headers_t *images)
{
/* Linux kernel load address */
unsigned char *param
= (unsigned char *)image_get_load(images->legacy_hdr_os);
/* Linux kernel command line */
- char *cmdline = (char *)param + 0x100;
+ char *cmdline = (char *)param + COMMAND_LINE;
/* PAGE_SIZE */
unsigned long size = images->ep - (unsigned long)param;
char *bootargs = getenv("bootargs");
+ /*
+ * 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;
- /* Setup parameters */
- memset(param, 0, size); /* Clear zero page */
+ /* Clear zero page */
+ memset(param, 0, size);
+
+ /* Set commandline */
strcpy(cmdline, bootargs);
+ /* Initrd */
+ if (images->rd_start || images->rd_end) {
+ unsigned long ramdisk_flags = 0;
+ int val = sh_check_cmd_arg(bootargs, CMD_ARG_RD_PROMPT, 10);
+ if (val == 1)
+ ramdisk_flags |= RD_PROMPT;
+ else
+ ramdisk_flags &= ~RD_PROMPT;
+
+ val = sh_check_cmd_arg(bootargs, CMD_ARG_RD_DOLOAD, 10);
+ if (val == 1)
+ ramdisk_flags |= RD_DOLOAD;
+ else
+ ramdisk_flags &= ~RD_DOLOAD;
+
+ set_sh_linux_param((unsigned long)param + MOUNT_ROOT_RDONLY, 0x0001);
+ set_sh_linux_param((unsigned long)param + RAMDISK_FLAGS, ramdisk_flags);
+ set_sh_linux_param((unsigned long)param + ORIG_ROOT_DEV, 0x0200);
+ set_sh_linux_param((unsigned long)param + LOADER_TYPE, 0x0001);
+ set_sh_linux_param((unsigned long)param + INITRD_START,
+ GET_INITRD_START(images->rd_start, CONFIG_SYS_SDRAM_BASE));
+ set_sh_linux_param((unsigned long)param + INITRD_SIZE,
+ images->rd_end - images->rd_start);
+ }
+
+ /* Boot kernel */
kernel();
- /* does not return */
+ /* does not return */
return 1;
}