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soc: renesas: Identify R-Car M3-W ES1.3

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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@renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
This commit is contained in:
Takeshi Kihara 2019-02-28 12:00:48 +01:00 committed by Simon Horman
parent 9e98c678c2
commit 15160f6de0
1 changed files with 3 additions and 0 deletions
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drivers/soc/renesas/renesas-soc.c
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@ -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;