[coreboot-gerrit] New patch to review for coreboot: 4a73710 ectool: add write support

[Alexander Couzens (lynxis@fe80.eu)]

Alexander Couzens (lynxis at fe80.eu) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/8323

-gerrit

commit 4a73710c9a0c14434cb3904d032b2b47ccf6aa88
Author: Alexander Couzens <lynxis at fe80.eu>
Date:   Mon Feb 2 08:51:30 2015 +0100

    ectool: add write support
    
    Use `ectool -w <addr> -z <data>` to write into ec ram
    
    Change-Id: Id4aca045f6b7c2343be96ea474ee74033897b8b7
    Signed-off-by: Alexander Couzens <lynxis at fe80.eu>
---
 util/ectool/ectool.c | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)

diff --git a/util/ectool/ectool.c b/util/ectool/ectool.c
index ab77282..4ceeaf8 100644
--- a/util/ectool/ectool.c
+++ b/util/ectool/ectool.c
@@ -24,6 +24,7 @@
 #include <getopt.h>
 #include <sys/io.h>
 #include <ec.h>
+#include <stdlib.h>
 
 #define ECTOOL_VERSION "0.1"
 
@@ -51,6 +52,8 @@ void print_usage(const char *name)
 	       "   -h | --help:                      print this help\n\n"
 	       "   -V | --verbose:                   print debug information\n"
 	       "   -i | --idx:                       print IDX RAM\n"
+	       "   -w <addr in hex>                  write to addr\n"
+	       "   -z <data in hex>                  write to data\n"
 	       "\n");
 	exit(1);
 }
@@ -60,6 +63,8 @@ int verbose = 0, dump_idx = 0;
 int main(int argc, char *argv[])
 {
 	int i, opt, option_index = 0;
+	long write_data = -1;
+	long write_addr = -1;
 
 	static struct option long_options[] = {
 		{"version", 0, 0, 'v'},
@@ -69,7 +74,7 @@ int main(int argc, char *argv[])
 		{0, 0, 0, 0}
 	};
 
-	while ((opt = getopt_long(argc, argv, "vh?Vi",
+	while ((opt = getopt_long(argc, argv, "vh?Viw:z:",
 				  long_options, &option_index)) != EOF) {
 		switch (opt) {
 		case 'v':
@@ -82,6 +87,12 @@ int main(int argc, char *argv[])
 		case 'i':
 			dump_idx = 1;
 			break;
+		case 'w':
+			write_addr = strtol(optarg , NULL, 16);
+			break;
+		case 'z':
+			write_data = strtol(optarg , NULL, 16);
+			break;
 		case 'h':
 		case '?':
 		default:
@@ -95,6 +106,12 @@ int main(int argc, char *argv[])
 		printf("You need to be root.\n");
 		exit(1);
 	}
+	if (write_addr >= 0 && write_data >= 0) {
+		write_addr &= 0xff;
+		write_data &= 0xff;
+		printf("\nWriting ec %02lx = %02lx\n", write_addr & 0xff, write_data & 0xff);
+		ec_write(write_addr & 0xff, write_data & 0xff);
+	}
 
 	printf("EC RAM:\n");
 	for (i = 0; i < 0x100; i++) {