Move all command code into its own directory

There are a lot of unrelated files in common, including all of the commands.
Moving them into their own directory makes them easier to find and is more
logical.

Some commands include non-command code, such as cmd_scsi.c. This should be
sorted out at some point so that the function can be enabled with or without
the associated command.

Unfortunately, with m68k I get this error:

m68k:  +   M5329AFEE
+arch/m68k/cpu/mcf532x/start.o: In function `_start':
+arch/m68k/cpu/mcf532x/start.S:159:(.text+0x452): relocation truncated to fit: R_68K_PC16 against symbol `board_init_f' defined in .text.board_init_f section in common/built-in.o

I hope someone can shed some light on what this means. I hope it isn't
depending on the position of code in the image.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
Acked-by: Stefan Roese <sr@denx.de>
Acked-by: Przemyslaw Marczak <p.marczak@samsung.com>

1 files changed, 81 insertions, 0 deletions

diff --git a/cmd/cmd_read.c b/cmd/cmd_read.c
new file mode 100644
index 0000000000..8710288781
--- /dev/null
+++ b/cmd/cmd_read.c
@@ -0,0 +1,81 @@
+/*
+ * Copyright (c) 2011 The Chromium OS Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ */
+
+#include <common.h>
+#include <command.h>
+#include <part.h>
+
+int do_read(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	char *ep;
+	block_dev_desc_t *dev_desc = NULL;
+	int dev;
+	int part = 0;
+	disk_partition_t part_info;
+	ulong offset = 0u;
+	ulong limit = 0u;
+	void *addr;
+	uint blk;
+	uint cnt;
+
+	if (argc != 6) {
+		cmd_usage(cmdtp);
+		return 1;
+	}
+
+	dev = (int)simple_strtoul(argv[2], &ep, 16);
+	if (*ep) {
+		if (*ep != ':') {
+			printf("Invalid block device %s\n", argv[2]);
+			return 1;
+		}
+		part = (int)simple_strtoul(++ep, NULL, 16);
+	}
+
+	dev_desc = get_dev(argv[1], dev);
+	if (dev_desc == NULL) {
+		printf("Block device %s %d not supported\n", argv[1], dev);
+		return 1;
+	}
+
+	addr = (void *)simple_strtoul(argv[3], NULL, 16);
+	blk = simple_strtoul(argv[4], NULL, 16);
+	cnt = simple_strtoul(argv[5], NULL, 16);
+
+	if (part != 0) {
+		if (get_partition_info(dev_desc, part, &part_info)) {
+			printf("Cannot find partition %d\n", part);
+			return 1;
+		}
+		offset = part_info.start;
+		limit = part_info.size;
+	} else {
+		/* Largest address not available in block_dev_desc_t. */
+		limit = ~0;
+	}
+
+	if (cnt + blk > limit) {
+		printf("Read out of range\n");
+		return 1;
+	}
+
+	if (dev_desc->block_read(dev_desc, offset + blk, cnt, addr) < 0) {
+		printf("Error reading blocks\n");
+		return 1;
+	}
+
+	return 0;
+}
+
+U_BOOT_CMD(
+	read,	6,	0,	do_read,
+	"Load binary data from a partition",
+	"<interface> <dev[:part]> addr blk# cnt"
+);