From: Ilya Lipnitskiy <ilya.lipnitskiy@xxxxxxxxx>
[ Upstream commit 5d8965704fe5662e2e4a7e4424a2cbe53e182670 ]
It was the intention to reverse the bits, not make them all zero by
using logical NOT operator.
Fixes: cc19db8b312a ("MIPS: ralink: mt7621: do memory detection on KSEG1")
Suggested-by: Chuanhong Guo <gch981213@xxxxxxxxx>
Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@xxxxxxxxx>
Reviewed-by: Sergio Paracuellos <sergio.paracuellos@xxxxxxxxx>
Signed-off-by: Thomas Bogendoerfer <tsbogend@xxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
arch/mips/ralink/mt7621.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/mips/ralink/mt7621.c b/arch/mips/ralink/mt7621.c
index fd9a872d5713..4c8378661219 100644
--- a/arch/mips/ralink/mt7621.c
+++ b/arch/mips/ralink/mt7621.c
@@ -38,7 +38,7 @@ static bool __init mt7621_addr_wraparound_test(phys_addr_t size)
__raw_writel(MT7621_MEM_TEST_PATTERN, dm);
if (__raw_readl(dm) != __raw_readl(dm + size))
return false;
- __raw_writel(!MT7621_MEM_TEST_PATTERN, dm);
+ __raw_writel(~MT7621_MEM_TEST_PATTERN, dm);
return __raw_readl(dm) == __raw_readl(dm + size);
}
--
2.34.1
