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From: Sascha Hauer <s.hauer@pengutronix.de>
To: Barebox List <barebox@lists.infradead.org>
Subject: [PATCH 09/10] mm command: Add 64bit support
Date: Thu, 28 May 2015 12:34:43 +0200	[thread overview]
Message-ID: <1432809284-17362-10-git-send-email-s.hauer@pengutronix.de> (raw)
In-Reply-To: <1432809284-17362-1-git-send-email-s.hauer@pengutronix.de>

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
 commands/mm.c | 20 ++++++++++++++++----
 1 file changed, 16 insertions(+), 4 deletions(-)

diff --git a/commands/mm.c b/commands/mm.c
index ff2e746..7c890a6 100644
--- a/commands/mm.c
+++ b/commands/mm.c
@@ -38,9 +38,10 @@ static int do_mem_mm(int argc, char *argv[])
 	u8 val8;
 	u16 val16;
 	u32 val32;
-	u32 value, mask;
+	u64 val64;
+	u64 value, mask;
 
-	if (mem_parse_options(argc, argv, "bwld:", &mode, NULL, &filename,
+	if (mem_parse_options(argc, argv, "bwlqd:", &mode, NULL, &filename,
 			&swab) < 0)
 		return 1;
 
@@ -48,8 +49,8 @@ static int do_mem_mm(int argc, char *argv[])
 		return COMMAND_ERROR_USAGE;
 
 	adr = strtoull_suffix(argv[optind++], NULL, 0);
-	value = simple_strtoul(argv[optind++], NULL, 0);
-	mask = simple_strtoul(argv[optind++], NULL, 0);
+	value = simple_strtoull(argv[optind++], NULL, 0);
+	mask = simple_strtoull(argv[optind++], NULL, 0);
 
 	fd = open_and_lseek(filename, mode | O_RDWR, adr);
 	if (fd < 0)
@@ -86,6 +87,16 @@ static int do_mem_mm(int argc, char *argv[])
 		if (ret < 0)
 			goto out_write;
 		break;
+	case O_RWSIZE_8:
+		if (ret < 0)
+			goto out_read;
+		ret = pread(fd, &val64, 8, adr);
+		val64 &= ~mask;
+		val64 |= (value & mask);
+		ret = pwrite(fd, &val64, 8, adr);
+		if (ret < 0)
+			goto out_write;
+		break;
 	}
 
 	close(fd);
@@ -110,6 +121,7 @@ BAREBOX_CMD_HELP_TEXT("Options:")
 BAREBOX_CMD_HELP_OPT ("-b",  "byte access")
 BAREBOX_CMD_HELP_OPT ("-w",  "word access (16 bit)")
 BAREBOX_CMD_HELP_OPT ("-l",  "long access (32 bit)")
+BAREBOX_CMD_HELP_OPT ("-q",  "quad access (64 bit)")
 BAREBOX_CMD_HELP_OPT ("-d FILE",  "write file (default /dev/mem)")
 BAREBOX_CMD_HELP_END
 
-- 
2.1.4


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  parent reply	other threads:[~2015-05-28 10:35 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-05-28 10:34 Add 64bit support to mem commands Sascha Hauer
2015-05-28 10:34 ` [PATCH 01/10] memory_display: Use consistent types Sascha Hauer
2015-05-28 10:34 ` [PATCH 02/10] memory_display: Add 64bit support Sascha Hauer
2015-05-28 10:34 ` [PATCH 03/10] fs: Add O_RWSIZE_8 Sascha Hauer
2015-05-28 10:34 ` [PATCH 04/10] mem commands: suppport parsing 'q' option Sascha Hauer
2015-05-28 10:34 ` [PATCH 05/10] md command: Add 64bit support Sascha Hauer
2015-05-28 10:34 ` [PATCH 06/10] memcmp " Sascha Hauer
2015-05-28 10:34 ` [PATCH 07/10] memcpy " Sascha Hauer
2015-05-28 10:34 ` [PATCH 08/10] memset " Sascha Hauer
2015-05-28 10:34 ` Sascha Hauer [this message]
2015-05-28 10:34 ` [PATCH 10/10] mw " Sascha Hauer

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