net: stmmac: dwmac-meson8b: add a compatible string for G12A SoCs

Amlogic Meson G12A, G12B and SM1 have the same (at least as far as we
know at the time of writing) PRG_ETHERNET glue register implementation.
This implementation however is slightly different from AXG as it now has
an undocument "auto cali idx val" register in PRG_ETH1[17:16] which
seems to be related to RGMII Ethernet.

Add a new compatible string for G12A SoCs so the logic for this new
register can be implemented in the future.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-meson8b.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-meson8b.c
index 234e8b6..544bc62 100644 (file)
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-meson8b.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-meson8b.c
@@ -491,6 +491,10 @@ static const struct of_device_id meson8b_dwmac_match[] = {
                .compatible = "amlogic,meson-axg-dwmac",
                .data = &meson_axg_dwmac_data,
        },
+       {
+               .compatible = "amlogic,meson-g12a-dwmac",
+               .data = &meson_axg_dwmac_data,
+       },
        { }
 };
 MODULE_DEVICE_TABLE(of, meson8b_dwmac_match);