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From:   Martin Blumenstingl <martin.blumenstingl@googlemail.com>
To:     davem@davemloft.net, netdev@vger.kernel.org,
        linux-amlogic@lists.infradead.org, robh+dt@kernel.org
Cc:     devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org,
        Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Subject: [PATCH 2/2] net: stmmac: dwmac-meson8b: add a compatible string for G12A SoCs
Date:   Sat, 20 Jun 2020 21:26:41 +0200
Message-Id: <20200620192641.175754-3-martin.blumenstingl@googlemail.com>
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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>
---
 drivers/net/ethernet/stmicro/stmmac/dwmac-meson8b.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-meson8b.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-meson8b.c
index 234e8b6816ce..544bc621146c 100644
--- 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);
-- 
2.27.0