From d23d8d7e069c3aca071b7f68d9c15d11f8d4c84d Mon Sep 17 00:00:00 2001
From: Nikita Kiryanov <nikita@compulab.co.il>
Date: Mon, 3 Dec 2012 02:19:46 +0000
Subject: mmc: add support for write protection

Add generic mmc write protection functionality.

Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
---
 common/cmd_mmc.c | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'common/cmd_mmc.c')

diff --git a/common/cmd_mmc.c b/common/cmd_mmc.c
index 7dacd5114c..8c53a10315 100644
--- a/common/cmd_mmc.c
+++ b/common/cmd_mmc.c
@@ -282,6 +282,13 @@ static int do_mmcops(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 
 		mmc_init(mmc);
 
+		if ((state == MMC_WRITE || state == MMC_ERASE)) {
+			if (mmc_getwp(mmc) == 1) {
+				printf("Error: card is write protected!\n");
+				return 1;
+			}
+		}
+
 		switch (state) {
 		case MMC_READ:
 			n = mmc->block_dev.block_read(curr_device, blk,
-- 
cgit