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soc: renesas: Identify R-Car M3-W ES1.1

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The Product Register of R-Car M3-W ES1.1 incorrectly identifies the SoC
revision as ES2.0.  Add a workaround to fix this.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
This commit is contained in:
Geert Uytterhoeven 2017-10-30 18:29:58 +01:00 committed by Simon Horman
parent 4fbd8d194f
commit 90f0d2b344
1 changed files with 3 additions and 0 deletions
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3
drivers/soc/renesas/renesas-soc.c
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@ -250,6 +250,9 @@ static int __init renesas_soc_init(void)
if (chipid) {
product = readl(chipid);
iounmap(chipid);
/* R-Car M3-W ES1.1 incorrectly identifies as ES2.0 */
if ((product & 0x7fff) == 0x5210)
product ^= 0x11;
if (soc->id && ((product >> 8) & 0xff) != soc->id) {
pr_warn("SoC mismatch (product = 0x%x)\n", product);
return -ENODEV;