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 <[email protected]> --- Is it already known how future revisions will be identified? --- 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 f8389ed2249f9816..5c7f920ff060957a 100644 --- a/drivers/soc/renesas/renesas-soc.c +++ b/drivers/soc/renesas/renesas-soc.c @@ -293,6 +293,9 @@ 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; -- 2.7.4
