separating memory commands

Signed-off-by: Juergen Beisert <j.beisert@pengutronix.de>

1 files changed, 126 insertions, 0 deletions

diff --git a/commands/mv.c b/commands/mv.c
new file mode 100644
index 0000000000..937fd057a3
--- /dev/null
+++ b/commands/mv.c
@@ -0,0 +1,126 @@
+/*
+ * (C) Copyright 2000
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * 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
+ */
+
+/**
+ * @file
+ * @brief mw: memory write command
+ */
+
+#include <common.h>
+#include <command.h>
+#include <malloc.h>
+#include <errno.h>
+#include <fs.h>
+#include <fcntl.h>
+#include <getopt.h>
+#include <linux/stat.h>
+#include <xfuncs.h>
+
+static int do_mem_mw ( cmd_tbl_t *cmdtp, int argc, char *argv[])
+{
+	int ret = 0;
+	int fd;
+	char *filename = memory_device;
+	int mode = O_RWSIZE_4;
+	ulong adr;
+
+	errno = 0;
+
+	if (mem_parse_options(argc, argv, "bwld:", &mode, NULL, &filename) < 0)
+		return 1;
+
+	if (optind + 1 >= argc) {
+		u_boot_cmd_usage(cmdtp);
+		return 1;
+	}
+
+	adr = strtoul_suffix(argv[optind++], NULL, 0);
+
+	fd = open_and_lseek(filename, mode | O_WRONLY, adr);
+	if (fd < 0)
+		return 1;
+
+	while (optind < argc) {
+		u8 val8;
+		u16 val16;
+		u32 val32;
+		switch (mode) {
+		case O_RWSIZE_1:
+			val8 = simple_strtoul(argv[optind], NULL, 0);
+			ret = write(fd, &val8, 1);
+			break;
+		case O_RWSIZE_2:
+			val16 = simple_strtoul(argv[optind], NULL, 0);
+			ret = write(fd, &val16, 2);
+			break;
+		case O_RWSIZE_4:
+			val32 = simple_strtoul(argv[optind], NULL, 0);
+			ret = write(fd, &val32, 4);
+			break;
+		}
+		if (ret < 0) {
+			perror("write");
+			break;
+		}
+		optind++;
+	}
+
+	return errno;
+}
+
+static __maybe_unused char cmd_mw_help[] =
+"Usage: mw [OPTIONS] <region> <value(s)>\n"
+"Write value(s) to the specifies region.\n"
+"see 'help md' for supported options.\n";
+
+U_BOOT_CMD_START(mw)
+	.maxargs	= CONFIG_MAXARGS,
+	.cmd		= do_mem_mw,
+	.usage		= "memory write (fill)",
+	U_BOOT_CMD_HELP(cmd_mw_help)
+U_BOOT_CMD_END
+
+/**
+@page mw_command mw: write something somewhere
+
+Usage is: mw [Options] \<region>
+
+Options are:
+- -s \<file>   display file (default /dev/mem)
+- -d \<file>   write file (default /dev/mem)
+- -b          output in bytes
+- -w          output in halfwords (16bit)
+- -l          output in words (32bit)
+
+Memory regions:
+- Memory regions can be specified in two different forms: \b \<start>+\<size>
+  or \b \<start>-\<end>
+- If \b \<start> is ommitted it defaults to 0.
+- If \b \<end> is ommited it defaults to the end of the device, except for
+  interactive commands like \c md and \c mw for which it defaults to 0x100.
+- Sizes can be specified as decimal, or if prefixed with 0x as hexadecimal.
+- an optional suffix of k, M or G is for kibibytes, Megabytes or Gigabytes,
+  respectively
+
+For usage examples refer the \c md command.
+*/