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net: stmmac: sun8i: add support for Allwinner H6 EMAC 

The EMAC on Allwinner H6 is just like the one on A64. The "internal PHY" on
H6 is on a co-packaged AC200 chip, and it's not really internal (it's
connected via RMII at PA GPIO bank).

Add support for the Allwinner H6 EMAC in the dwmac-sun8i driver.

Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Signed-off-by: Ondrej Jirman <megous@megous.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Icenowy Zheng 2019-06-20 15:47:43 +02:00 committed by David S. Miller
parent dcdfa50eef
commit adadd38c53
1 changed files with 16 additions and 0 deletions
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16
drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c
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@ -138,6 +138,20 @@ static const struct emac_variant emac_variant_a64 = {
.tx_delay_max = 7,
};
static const struct emac_variant emac_variant_h6 = {
.default_syscon_value = 0x50000,
.syscon_field = &sun8i_syscon_reg_field,
/* The "Internal PHY" of H6 is not on the die. It's on the
* co-packaged AC200 chip instead.
*/
.soc_has_internal_phy = false,
.support_mii = true,
.support_rmii = true,
.support_rgmii = true,
.rx_delay_max = 31,
.tx_delay_max = 7,
};
#define EMAC_BASIC_CTL0 0x00
#define EMAC_BASIC_CTL1 0x04
#define EMAC_INT_STA 0x08
@ -1216,6 +1230,8 @@ static const struct of_device_id sun8i_dwmac_match[] = {
.data = &emac_variant_r40 },
{ .compatible = "allwinner,sun50i-a64-emac",
.data = &emac_variant_a64 },
{ .compatible = "allwinner,sun50i-h6-emac",
.data = &emac_variant_h6 },
{ }
};
MODULE_DEVICE_TABLE(of, sun8i_dwmac_match);