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Date:   Wed, 20 Oct 2021 20:22:58 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Herve Codina <herve.codina@...tlin.com>,
        "David S . Miller" <davem@...emloft.net>,
        Sasha Levin <sashal@...nel.org>, peppe.cavallaro@...com,
        alexandre.torgue@...s.st.com, joabreu@...opsys.com,
        kuba@...nel.org, mcoquelin.stm32@...il.com, netdev@...r.kernel.org,
        linux-stm32@...md-mailman.stormreply.com,
        linux-arm-kernel@...ts.infradead.org
Subject: [PATCH AUTOSEL 4.19 03/10] net: stmmac: add support for dwmac 3.40a

From: Herve Codina <herve.codina@...tlin.com>

[ Upstream commit 9cb1d19f47fafad7dcf7c8564e633440c946cfd7 ]

dwmac 3.40a is an old ip version that can be found on SPEAr3xx soc.

Signed-off-by: Herve Codina <herve.codina@...tlin.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/net/ethernet/stmicro/stmmac/dwmac-generic.c   | 1 +
 drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c | 8 ++++++++
 2 files changed, 9 insertions(+)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-generic.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-generic.c
index fad503820e04..b3365b34cac7 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-generic.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-generic.c
@@ -71,6 +71,7 @@ static int dwmac_generic_probe(struct platform_device *pdev)
 
 static const struct of_device_id dwmac_generic_match[] = {
 	{ .compatible = "st,spear600-gmac"},
+	{ .compatible = "snps,dwmac-3.40a"},
 	{ .compatible = "snps,dwmac-3.50a"},
 	{ .compatible = "snps,dwmac-3.610"},
 	{ .compatible = "snps,dwmac-3.70a"},
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
index 2b800ce1d5bf..05f5084158bf 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
@@ -469,6 +469,14 @@ stmmac_probe_config_dt(struct platform_device *pdev, const char **mac)
 		plat->pmt = 1;
 	}
 
+	if (of_device_is_compatible(np, "snps,dwmac-3.40a")) {
+		plat->has_gmac = 1;
+		plat->enh_desc = 1;
+		plat->tx_coe = 1;
+		plat->bugged_jumbo = 1;
+		plat->pmt = 1;
+	}
+
 	if (of_device_is_compatible(np, "snps,dwmac-4.00") ||
 	    of_device_is_compatible(np, "snps,dwmac-4.10a") ||
 	    of_device_is_compatible(np, "snps,dwmac-4.20a")) {
-- 
2.33.0

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