[ Upstream commit 15160f6de0bba712fcea078c5ac7571fe33fcd5d ]
The Product Register of R-Car M3-W ES1.3 incorrectly identifies the SoC
revision as ES2.1. Add a workaround to fix this.
Signed-off-by: Takeshi Kihara <takeshi.kihara.df@xxxxxxxxxxx>
Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
Signed-off-by: Simon Horman <horms+renesas@xxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/soc/renesas/renesas-soc.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/soc/renesas/renesas-soc.c b/drivers/soc/renesas/renesas-soc.c
index 4af96e668a2f..3299cf5365f3 100644
--- a/drivers/soc/renesas/renesas-soc.c
+++ b/drivers/soc/renesas/renesas-soc.c
@@ -335,6 +335,9 @@ static int __init renesas_soc_init(void)
/* R-Car M3-W ES1.1 incorrectly identifies as ES2.0 */
if ((product & 0x7fff) == 0x5210)
product ^= 0x11;
+ /* R-Car M3-W ES1.3 incorrectly identifies as ES2.1 */
+ if ((product & 0x7fff) == 0x5211)
+ product ^= 0x12;
if (soc->id && ((product >> 8) & 0xff) != soc->id) {
pr_warn("SoC mismatch (product = 0x%x)\n", product);
return -ENODEV;
--
2.20.1
