From ee2ae1ed46251dcbdcc2c59b5e30f664ddfbacb1 Mon Sep 17 00:00:00 2001
From: Alexandre TORGUE <alexandre.torgue@st.com>
Date: Fri, 1 Apr 2016 11:37:33 +0200
Subject: [PATCH] stmmac: add new DT platform entries for GMAC4
This is to support the snps,dwmac-4.00 and snps,dwmac-4.10a
and related features on the platform driver.
See binding doc for further details.
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
Documentation/devicetree/bindings/net/stmmac.txt | 2 ++
drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c | 7 +++++++
include/linux/stmmac.h | 2 ++
3 files changed, 11 insertions(+)
diff --git a/Documentation/devicetree/bindings/net/stmmac.txt b/Documentation/devicetree/bindings/net/stmmac.txt
index 6605d19601c2a..4d302db657c0b 100644
--- a/Documentation/devicetree/bindings/net/stmmac.txt
+++ b/Documentation/devicetree/bindings/net/stmmac.txt
@@ -59,6 +59,8 @@ Optional properties:
- snps,fb: fixed-burst
- snps,mb: mixed-burst
- snps,rb: rebuild INCRx Burst
+ - snps,tso: this enables the TSO feature otherwise it will be managed by
+ MAC HW capability register.
- mdio: with compatible = "snps,dwmac-mdio", create and register mdio bus.
Examples:
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
index cf37ea558ecc9..effaa4ff5ab7b 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
@@ -284,6 +284,13 @@ stmmac_probe_config_dt(struct platform_device *pdev, const char **mac)
plat->pmt = 1;
}
+ if (of_device_is_compatible(np, "snps,dwmac-4.00") ||
+ of_device_is_compatible(np, "snps,dwmac-4.10a")) {
+ plat->has_gmac4 = 1;
+ plat->pmt = 1;
+ plat->tso_en = of_property_read_bool(np, "snps,tso");
+ }
+
if (of_device_is_compatible(np, "snps,dwmac-3.610") ||
of_device_is_compatible(np, "snps,dwmac-3.710")) {
plat->enh_desc = 1;
diff --git a/include/linux/stmmac.h b/include/linux/stmmac.h
index e6bc30a42a749..ffdaca9c01af5 100644
--- a/include/linux/stmmac.h
+++ b/include/linux/stmmac.h
@@ -137,5 +137,7 @@ struct plat_stmmacenet_data {
void (*exit)(struct platform_device *pdev, void *priv);
void *bsp_priv;
struct stmmac_axi *axi;
+ int has_gmac4;
+ bool tso_en;
};
#endif
--
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