init commit via android 4.4 uboot

1 files changed, 359 insertions, 0 deletions

diff --git a/common/cmd_ext_common.c b/common/cmd_ext_common.c
new file mode 100755
index 0000000..4d9b663
--- /dev/null
+++ b/common/cmd_ext_common.c
@@ -0,0 +1,359 @@
+/*
+ * (C) Copyright 2011 - 2012 Samsung Electronics
+ * EXT2/4 filesystem implementation in Uboot by
+ * Uma Shankar <uma.shankar@samsung.com>
+ * Manjunatha C Achar <a.manjunatha@samsung.com>
+ *
+ * Ext4fs support
+ * made from existing cmd_ext2.c file of Uboot
+ *
+ * (C) Copyright 2004
+ * esd gmbh <www.esd-electronics.com>
+ * Reinhard Arlt <reinhard.arlt@esd-electronics.com>
+ *
+ * made from cmd_reiserfs by
+ *
+ * (C) Copyright 2003 - 2004
+ * Sysgo Real-Time Solutions, AG <www.elinos.com>
+ * Pavel Bartusek <pba@sysgo.com>
+ *
+ * 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
+ *
+ */
+
+/*
+ * Changelog:
+ *	0.1 - Newly created file for ext4fs support. Taken from cmd_ext2.c
+ *	        file in uboot. Added ext4fs ls load and write support.
+ */
+
+#include <common.h>
+#include <part.h>
+#include <config.h>
+#include <command.h>
+#include <image.h>
+#include <linux/ctype.h>
+#include <asm/byteorder.h>
+#include <ext_common.h>
+#include <ext4fs.h>
+#include <linux/stat.h>
+#include <malloc.h>
+
+#if defined(CONFIG_CMD_USB) && defined(CONFIG_USB_STORAGE)
+#include <usb.h>
+#endif
+
+
+#define DOS_PART_MAGIC_OFFSET		0x1fe
+#define DOS_FS_TYPE_OFFSET		0x36
+#define DOS_FS32_TYPE_OFFSET		0x52
+
+int do_ext_load(cmd_tbl_t *cmdtp, int flag, int argc,
+						char *const argv[])
+{
+	char *filename = NULL;
+	char *ep;
+	int dev, part = 1;
+	ulong addr = 0, part_length, filelen;
+	disk_partition_t info;
+	block_dev_desc_t *dev_desc = NULL;
+	char buf [12];
+	unsigned long count;
+	char *addr_str;
+
+	switch (argc) {
+	case 3:
+		addr_str = getenv("loadaddr");
+		if (addr_str != NULL) {
+			addr = simple_strtoul (addr_str, NULL, 16);
+		} else {
+			addr = CFG_LOAD_ADDR;
+		}
+		filename = getenv ("bootfile");
+		count = 0;
+		break;
+	case 4:
+		addr = simple_strtoul (argv[3], NULL, 16);
+		filename = getenv ("bootfile");
+		count = 0;
+		break;
+	case 5:
+		addr = simple_strtoul (argv[3], NULL, 16);
+		filename = argv[4];
+		count = 0;
+		break;
+	case 6:
+		addr = simple_strtoul (argv[3], NULL, 16);
+		filename = argv[4];
+		count = simple_strtoul (argv[5], NULL, 16);
+		break;
+
+	default:
+		printf ("Usage:\n%s\n", cmdtp->usage);
+		return(1);
+	}
+
+	if (!filename) {
+		puts ("\n** No boot file defined **\n");
+		return(1);
+	}
+
+	dev = (int)simple_strtoul (argv[2], &ep, 16);
+	dev_desc=get_dev(argv[1],dev);
+	if (dev_desc==NULL) {
+		printf ("\n** Block device %s %d not supported\n", argv[1], dev);
+		return(1);
+	}
+	if (*ep) {
+		if (*ep != ':') {
+			puts ("\n** Invalid boot device, use `dev[:part]' **\n");
+			return(1);
+		}
+		part = (int)simple_strtoul(++ep, NULL, 16);
+	}
+
+	printf("Using device %s%d, partition %d\n", argv[1], dev, part);
+
+	if (part != 0) {
+		if (get_partition_info (dev_desc, part, &info)) {
+			printf ("** Bad partition %d **\n", part);
+			return(1);
+		}
+
+		if (strncmp((char *)info.type, BOOT_PART_TYPE, sizeof(info.type)) != 0) {
+			printf ("\n** Invalid partition type \"%.32s\""
+				" (expect \"" BOOT_PART_TYPE "\")\n",
+				info.type);
+			return(1);
+		}
+		//PRINTF ("\nLoading from block device %s device %d, partition %d: "
+		//	"Name: %.32s  Type: %.32s  File:%s\n",
+		//	argv[1], dev, part, info.name, info.type, filename);
+	} else {
+		//PRINTF ("\nLoading from block device %s device %d, File:%s\n",
+		//	argv[1], dev, filename);
+		
+		/* disk doesn't use partition table */
+		info.start = 0;
+		info.size = dev_desc->lba;
+		info.blksz = dev_desc->blksz;
+	}
+
+	part_length = info.size;
+	ext4fs_set_blk_dev(dev_desc, &info);
+
+	if (!ext4fs_mount(part_length)) {
+		printf ("** Bad ext2 partition or disk - %s %d:%d **\n",  argv[1], dev, part);
+		ext4fs_close();
+		return(1);
+	}
+
+	filelen = ext4fs_open(filename);
+	if (filelen < 0) {
+		printf("** File not found %s\n", filename);
+		ext4fs_close();
+		return(1);
+	}
+	if ((count < filelen) && (count != 0)) {
+	    filelen = count;
+	}
+
+	if (ext4fs_read((char *)addr, filelen) != filelen) {
+		printf("\n** Unable to read \"%s\" from %s %d:%d **\n", filename, argv[1], dev, part);
+		ext4fs_close();
+		return(1);
+	}
+
+	ext4fs_close();
+
+	/* Loading ok, update default load address */
+	load_addr = addr;
+
+	printf ("\n%ld bytes read\n", filelen);
+	sprintf(buf, "%lX", filelen);
+	setenv("filesize", buf);
+
+	return(filelen);
+
+#if 0
+	char *filename = NULL;
+	int dev, part;
+	ulong addr = 0;
+	int filelen;
+	disk_partition_t info;
+	block_dev_desc_t *dev_desc;
+	char buf[12];
+	unsigned long count;
+	const char *addr_str;
+
+	count = 0;
+	addr = simple_strtoul(argv[3], NULL, 16);
+	filename = getenv("bootfile");
+	switch (argc) {
+	case 3:
+		addr_str = getenv("loadaddr");
+		if (addr_str != NULL)
+			addr = simple_strtoul(addr_str, NULL, 16);
+		else
+			addr = CONFIG_SYS_LOAD_ADDR;
+
+		break;
+	case 4:
+		break;
+	case 5:
+		filename = argv[4];
+		break;
+	case 6:
+		filename = argv[4];
+		count = simple_strtoul(argv[5], NULL, 16);
+		break;
+
+	default:
+		return cmd_usage(cmdtp);
+	}
+
+	if (!filename) {
+		puts("** No boot file defined **\n");
+		return 1;
+	}
+
+	part = get_device_and_partition(argv[1], argv[2], &dev_desc, &info, 1);
+	if (part < 0)
+		return 1;
+
+	dev = dev_desc->dev;
+	printf("Loading file \"%s\" from %s device %d%c%c\n",
+		filename, argv[1], dev,
+		part ? ':' : ' ', part ? part + '0' : ' ');
+
+	ext4fs_set_blk_dev(dev_desc, &info);
+
+	if (!ext4fs_mount(info.size)) {
+		printf("** Bad ext2 partition or disk - %s %d:%d **\n",
+		       argv[1], dev, part);
+		ext4fs_close();
+		goto fail;
+	}
+
+	filelen = ext4fs_open(filename);
+	if (filelen < 0) {
+		printf("** File not found %s\n", filename);
+		ext4fs_close();
+		goto fail;
+	}
+	if ((count < filelen) && (count != 0))
+		filelen = count;
+
+	if (ext4fs_read((char *)addr, filelen) != filelen) {
+		printf("** Unable to read \"%s\" from %s %d:%d **\n",
+		       filename, argv[1], dev, part);
+		ext4fs_close();
+		goto fail;
+	}
+
+	ext4fs_close();
+	/* Loading ok, update default load address */
+	load_addr = addr;
+
+	printf("%d bytes read\n", filelen);
+	sprintf(buf, "%X", filelen);
+	setenv("filesize", buf);
+
+	return 0;
+fail:
+	return 1;
+#endif
+}
+
+int do_ext_ls(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
+{
+
+	char *filename = "/";
+	int dev=0;
+	int part=1;
+	char *ep;
+	block_dev_desc_t *dev_desc=NULL;
+	int part_length;
+	disk_partition_t info;
+
+	if (argc < 3) {
+		printf ("Usage:\n%s\n", cmdtp->usage);
+		return(1);
+	}
+	dev = (int)simple_strtoul (argv[2], &ep, 16);
+	dev_desc=get_dev(argv[1],dev);
+
+	if (dev_desc == NULL) {
+		printf ("\n** Block device %s %d not supported\n", argv[1], dev);
+		return(1);
+	}
+
+	if (*ep) {
+		if (*ep != ':') {
+			puts ("\n** Invalid boot device, use `dev[:part]' **\n");
+			return(1);
+		}
+		part = (int)simple_strtoul(++ep, NULL, 16);
+	}
+
+	if (argc == 4) {
+	    filename = argv[3];
+	}
+
+	printf("Using device %s %d:%d, directory: %s\n", argv[1], dev, part, filename);
+
+	if (part == 0) {
+		/* disk doesn't use partition table */
+		info.start = 0;
+		info.size = dev_desc->lba;
+		info.blksz = dev_desc->blksz;
+	} else {
+		if (get_partition_info
+		    (dev_desc, part, &info)) {
+		}
+	}
+
+	part_length = info.size;
+	if (part_length == 0) {
+		printf ("** Bad partition - %s %d:%d **\n",  argv[1], dev, part);
+		ext4fs_close();
+		return(1);
+	}
+
+	dev = dev_desc->dev;
+	ext4fs_set_blk_dev(dev_desc, &info);
+	
+	if (!ext4fs_mount(info.size)) {
+		printf("** Bad ext2 partition or disk - %s %d:%d **\n",
+			   argv[1], dev, part);
+		ext4fs_close();
+		goto fail;
+	}
+	
+	if (ext4fs_ls(filename)) {
+		printf("** Error extfs_ls() **\n");
+		ext4fs_close();
+		goto fail;
+	};
+	
+	ext4fs_close();
+	return 0;
+	
+fail:
+
+	return 1;
+
+}