X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=arch%2Fsh%2Flib%2Fbootm.c;h=7ea04442b87695222de973ff5942477ad3f9af08;hb=b8e09898919e23c5d7f1934be7bf9a3a6f0deb0e;hp=f38d0b0e8e3fbc4e9276ff24cd212a2ea43b0a76;hpb=02cf8fd6fbef7ac015a234b09e7b55765aefcd4f;p=platform%2Fkernel%2Fu-boot.git

diff --git a/arch/sh/lib/bootm.c b/arch/sh/lib/bootm.c
index f38d0b0..7ea0444 100644
--- a/arch/sh/lib/bootm.c
+++ b/arch/sh/lib/bootm.c
@@ -1,60 +1,21 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2003
  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
  *
  * (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
- *
  */
 
 #include <common.h>
 #include <command.h>
+#include <env.h>
+#include <image.h>
 #include <asm/byteorder.h>
+#include <asm/global_data.h>
+#include <asm/zimage.h>
 
-#ifdef CONFIG_SYS_DEBUG
-static void hexdump(unsigned char *buf, int len)
-{
-	int i;
-
-	for (i = 0; i < len; i++) {
-		if ((i % 16) == 0)
-			printf("%s%08x: ", i ? "\n" : "",
-							(unsigned int)&buf[i]);
-		printf("%02x ", buf[i]);
-	}
-	printf("\n");
-}
-#endif
-
-#define MOUNT_ROOT_RDONLY	0x000
-#define RAMDISK_FLAGS		0x004
-#define ORIG_ROOT_DEV		0x008
-#define LOADER_TYPE			0x00c
-#define INITRD_START		0x010
-#define INITRD_SIZE			0x014
-#define COMMAND_LINE		0x100
-
-#define RD_PROMPT	(1<<15)
-#define RD_DOLOAD	(1<<14)
-#define CMD_ARG_RD_PROMPT	"prompt_ramdisk="
-#define CMD_ARG_RD_DOLOAD	"load_ramdisk="
+DECLARE_GLOBAL_DATA_PTR;
 
 #ifdef CONFIG_SH_SDRAM_OFFSET
 #define GET_INITRD_START(initrd, linux) (initrd - linux + CONFIG_SH_SDRAM_OFFSET)
@@ -78,7 +39,8 @@ static unsigned long sh_check_cmd_arg(char *cmdline, char *key, int base)
 	return val;
 }
 
-int do_bootm_linux(int flag, int argc, char * const argv[], bootm_headers_t *images)
+int do_bootm_linux(int flag, int argc, char *const argv[],
+		   bootm_headers_t *images)
 {
 	/* Linux kernel load address */
 	void (*kernel) (void) = (void (*)(void))images->ep;
@@ -89,18 +51,23 @@ int do_bootm_linux(int flag, int argc, char * const argv[], bootm_headers_t *ima
 	char *cmdline = (char *)param + COMMAND_LINE;
 	/* PAGE_SIZE */
 	unsigned long size = images->ep - (unsigned long)param;
-	char *bootargs = getenv("bootargs");
+	char *bootargs = env_get("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);
 
-	sh_check_cmd_arg(bootargs, CMD_ARG_RD_DOLOAD, 10);
 	/* Initrd */
 	if (images->rd_start || images->rd_end) {
 		unsigned long ramdisk_flags = 0;
@@ -109,7 +76,7 @@ int do_bootm_linux(int flag, int argc, char * const argv[], bootm_headers_t *ima
 				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;
@@ -128,7 +95,20 @@ int do_bootm_linux(int flag, int argc, char * const argv[], bootm_headers_t *ima
 
 	/* Boot kernel */
 	kernel();
-	/* does not return */
 
+	/* does not return */
 	return 1;
 }
+
+static ulong get_sp(void)
+{
+	ulong ret;
+
+	asm("mov r15, %0" : "=r"(ret) : );
+	return ret;
+}
+
+void arch_lmb_reserve(struct lmb *lmb)
+{
+	arch_lmb_reserve_generic(lmb, get_sp(), gd->ram_top, 4096);
+}