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    Subject[PATCH 5.1 148/155] soc: renesas: Identify R-Car M3-W ES1.3
    Date
    [ 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@renesas.com>
    Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
    Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    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


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