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stmmac: add new DT platform entries for GMAC4

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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>
This commit is contained in:
Alexandre TORGUE 2016-04-01 11:37:33 +02:00 committed by David S. Miller
parent 36ff7c1e94
commit ee2ae1ed46
3 changed files with 11 additions and 0 deletions
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2
Documentation/devicetree/bindings/net/stmmac.txt
View File

@ -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:

7
drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
View File

@ -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;

2
include/linux/stmmac.h
View File

@ -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