[U-Boot] [PATCH] add dm9000 eeprom read/write command

[Eric Jarrige]

Signed-off-by: Eric Jarrige <eric.jarrige at armadeus.org>
Signed-off-by: Stefano Babic <sbabic at denx.de>
CC: Ben Warren <biggerbadderben at gmail.com>
---
 README                |    1 +
 common/Makefile       |    1 +
 common/cmd_dm9000ee.c |   84 +++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 86 insertions(+), 0 deletions(-)
 create mode 100644 common/cmd_dm9000ee.c

diff --git a/README b/README
index 0886987..c6981bf 100644
--- a/README
+++ b/README
@@ -707,6 +707,7 @@ The following options need to be configured:
 		CONFIG_CMD_DATE		* support for RTC, date/time...
 		CONFIG_CMD_DHCP		* DHCP support
 		CONFIG_CMD_DIAG		* Diagnostics
+		CONFIG_CMD_DM9000EE	  DM9000 external EEPROM support
 		CONFIG_CMD_DS4510	* ds4510 I2C gpio commands
 		CONFIG_CMD_DS4510_INFO	* ds4510 I2C info command
 		CONFIG_CMD_DS4510_MEM	* ds4510 I2C eeprom/sram commansd
diff --git a/common/Makefile b/common/Makefile
index d662468..d22cbac 100644
--- a/common/Makefile
+++ b/common/Makefile
@@ -81,6 +81,7 @@ ifdef CONFIG_POST
 COBJS-$(CONFIG_CMD_DIAG) += cmd_diag.o
 endif
 COBJS-$(CONFIG_CMD_DISPLAY) += cmd_display.o
+COBJS-$(CONFIG_CMD_DM9000EE) += cmd_dm9000ee.o
 COBJS-$(CONFIG_CMD_DTT) += cmd_dtt.o
 COBJS-$(CONFIG_CMD_ECHO) += cmd_echo.o
 COBJS-$(CONFIG_ENV_IS_IN_EEPROM) += cmd_eeprom.o
diff --git a/common/cmd_dm9000ee.c b/common/cmd_dm9000ee.c
new file mode 100644
index 0000000..0d53c70
--- /dev/null
+++ b/common/cmd_dm9000ee.c
@@ -0,0 +1,84 @@
+/*
+ * (C) Copyright 2008-2011 Armadeus Project
+ * (C) Copyright 2007
+ * Stefano Babic, DENX Software Engineering, sbabic at 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
+ */
+
+#include <common.h>
+#include <command.h>
+#include <dm9000.h>
+
+#if (!defined(CONFIG_DM9000_NO_SROM) && defined(CONFIG_DRIVER_DM9000))
+
+static int do_read_dm9000_eeprom(cmd_tbl_t *cmdtp, int flag, int argc,
+				 char *const argv[])
+{
+	unsigned int i;
+	u8 data[2];
+
+	for (i = 0; i < 0x40; i++) {
+		if (!(i % 0x10))
+			printf("\n%08x:", i);
+		dm9000_read_srom_word(i, data);
+		printf(" %02x%02x", data[1], data[0]);
+	}
+	printf("\n");
+	return 0;
+}
+
+static int do_write_dm9000_eeprom(cmd_tbl_t *cmdtp, int flag, int argc,
+				  char *const argv[])
+{
+	unsigned long offset, value;
+
+	if (argc < 4)
+		return cmd_usage(cmdtp);
+
+	strict_strtoul(argv[2], 16, &offset);
+	strict_strtoul(argv[3], 16, &value);
+	if (offset > 0x40) {
+		printf("Wrong offset : 0x%lx\n", offset);
+		return cmd_usage(cmdtp);
+	}
+	dm9000_write_srom_word(offset, value);
+	return 0;
+}
+
+int do_dm9000_eeprom(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
+{
+	if (argc < 2)
+		return cmd_usage(cmdtp);
+
+	if (strcmp(argv[1], "read") == 0)
+		return do_read_dm9000_eeprom(cmdtp, flag, argc, argv);
+	else if (strcmp(argv[1], "write") == 0)
+		return do_write_dm9000_eeprom(cmdtp, flag, argc, argv);
+	else
+		return cmd_usage(cmdtp);
+}
+
+U_BOOT_CMD(dm9000ee, 4, 1, do_dm9000_eeprom,
+	   "Read/Write eeprom connected to Ethernet Controller",
+	   "\ndm9000ee write <word offset> <value> \n"
+	   "\tdm9000ee read \n"
+	   "\tword:\t\t00-02 : MAC Address\n"
+	   "\t\t\t03-07 : DM9000 Configuration\n" "\t\t\t08-63 : User data");
+#endif /* !CONFIG_DM9000_NO_SROM && CONFIG_DRIVER_DM9000 */