test: dm: mmc: Check block erasing boundaries

Verify that erasing blocks does not impact adjacent ones.
- Write four blocks [0 1 2 3]
- Erase two blocks [ 1 2 ]
- Verify [0 1 2 3 ]

Signed-off-by: Loic Poulain <loic.poulain@linaro.org>

diff --git a/test/dm/mmc.c b/test/dm/mmc.c
index f744452ff248e9c49a3c80844d8f5df4443960a9..b1eb8bee2f9d5e56fa1e2ead2d8e184c108a8587 100644 (file)
--- a/test/dm/mmc.c
+++ b/test/dm/mmc.c
@@ -30,7 +30,7 @@ static int dm_test_mmc_blk(struct unit_test_state *uts)
        struct udevice *dev;
        struct blk_desc *dev_desc;
        int i;
-       char write[1024], read[1024];
+       char write[4 * 512], read[4 * 512];
 
        ut_assertok(uclass_get_device(UCLASS_MMC, 0, &dev));
        ut_assertok(blk_get_device_by_str("mmc", "0", &dev_desc));
@@ -39,14 +39,14 @@ static int dm_test_mmc_blk(struct unit_test_state *uts)
        ut_asserteq(512, dev_desc->blksz);
        for (i = 0; i < sizeof(write); i++)
                write[i] = i;
-       ut_asserteq(2, blk_dwrite(dev_desc, 0, 2, write));
-       ut_asserteq(2, blk_dread(dev_desc, 0, 2, read));
+       ut_asserteq(4, blk_dwrite(dev_desc, 0, 4, write));
+       ut_asserteq(4, blk_dread(dev_desc, 0, 4, read));
        ut_asserteq_mem(write, read, sizeof(write));
 
-       /* Now erase them */
-       memset(write, '\0', sizeof(write));
-       ut_asserteq(2, blk_derase(dev_desc, 0, 2));
-       ut_asserteq(2, blk_dread(dev_desc, 0, 2, read));
+       /* Now erase two of them [1 - 2] and verify all blocks */
+       memset(&write[512], '\0', 2 * 512);
+       ut_asserteq(2, blk_derase(dev_desc, 1, 2));
+       ut_asserteq(4, blk_dread(dev_desc, 0, 4, read));
        ut_asserteq_mem(write, read, sizeof(write));
 
        return 0;