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bcwc_pcie: Return failed bits from memory test

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Instead of returning number of failed write/reads we return the actual
bits that where wrong.

Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
This commit is contained in:
Patrik Jakobsson
2015-05-26 19:38:15 +02:00
parent 7f71a37215
commit c013878d26
1 changed files with 3 additions and 4 deletions
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7
bcwc_ddr.c
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@@ -74,7 +74,7 @@ int bcwc_ddr_verify_mem_full(struct bcwc_private *dev_priv, u32 base)
int bcwc_ddr_verify_mem(struct bcwc_private *dev_priv, u32 base)
{
u32 i, addr, val, val_read;
int fails = 0;
int failed_bits = 0;
for (i = 0; i < 0x400; i += 4) {
bcwc_ddr_mem_pattern(i, &addr, &val);
@@ -85,11 +85,10 @@ int bcwc_ddr_verify_mem(struct bcwc_private *dev_priv, u32 base)
bcwc_ddr_mem_pattern(i, &addr, &val);
val_read = BCWC_S2_MEM_READ(base + addr);
if (val_read != val)
fails++;
failed_bits |= val ^ val_read;
}
return fails;
return ((failed_bits & 0xffff) | ((failed_bits >> 16) & 0xffff));
}