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net: ethernet: stmmac: dwmac-rk: Add rv1108 gmac support

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It only supports rmii interface. Add constants and callback functions
for the dwmac on rv1108 socs. As can be seen, the base structure is
the same, only registers and the bits in them moved slightly.

Signed-off-by: David Wu <david.wu@rock-chips.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David Wu 2017-08-21 18:12:55 +08:00 committed by David S. Miller
parent d3213fbf69
commit 89c9c1636f
2 changed files with 54 additions and 0 deletions
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1
Documentation/devicetree/bindings/net/rockchip-dwmac.txt
View file

@ -10,6 +10,7 @@ Required properties:
"rockchip,rk3366-gmac": found on RK3366 SoCs
"rockchip,rk3368-gmac": found on RK3368 SoCs
"rockchip,rk3399-gmac": found on RK3399 SoCs
"rockchip,rv1108-gmac": found on RV1108 SoCs
- reg: addresses and length of the register sets for the device.
- interrupts: Should contain the GMAC interrupts.
- interrupt-names: Should contain the interrupt names "macirq".

53
drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
View file

@ -787,6 +787,58 @@ static const struct rk_gmac_ops rk3399_ops = {
.set_rmii_speed = rk3399_set_rmii_speed,
};
#define RV1108_GRF_GMAC_CON0 0X0900
/* RV1108_GRF_GMAC_CON0 */
#define RV1108_GMAC_PHY_INTF_SEL_RMII (GRF_CLR_BIT(4) | GRF_CLR_BIT(5) | \
GRF_BIT(6))
#define RV1108_GMAC_FLOW_CTRL GRF_BIT(3)
#define RV1108_GMAC_FLOW_CTRL_CLR GRF_CLR_BIT(3)
#define RV1108_GMAC_SPEED_10M GRF_CLR_BIT(2)
#define RV1108_GMAC_SPEED_100M GRF_BIT(2)
#define RV1108_GMAC_RMII_CLK_25M GRF_BIT(7)
#define RV1108_GMAC_RMII_CLK_2_5M GRF_CLR_BIT(7)
static void rv1108_set_to_rmii(struct rk_priv_data *bsp_priv)
{
struct device *dev = &bsp_priv->pdev->dev;
if (IS_ERR(bsp_priv->grf)) {
dev_err(dev, "%s: Missing rockchip,grf property\n", __func__);
return;
}
regmap_write(bsp_priv->grf, RV1108_GRF_GMAC_CON0,
RV1108_GMAC_PHY_INTF_SEL_RMII);
}
static void rv1108_set_rmii_speed(struct rk_priv_data *bsp_priv, int speed)
{
struct device *dev = &bsp_priv->pdev->dev;
if (IS_ERR(bsp_priv->grf)) {
dev_err(dev, "%s: Missing rockchip,grf property\n", __func__);
return;
}
if (speed == 10) {
regmap_write(bsp_priv->grf, RV1108_GRF_GMAC_CON0,
RV1108_GMAC_RMII_CLK_2_5M |
RV1108_GMAC_SPEED_10M);
} else if (speed == 100) {
regmap_write(bsp_priv->grf, RV1108_GRF_GMAC_CON0,
RV1108_GMAC_RMII_CLK_25M |
RV1108_GMAC_SPEED_100M);
} else {
dev_err(dev, "unknown speed value for RMII! speed=%d", speed);
}
}
static const struct rk_gmac_ops rv1108_ops = {
.set_to_rmii = rv1108_set_to_rmii,
.set_rmii_speed = rv1108_set_rmii_speed,
};
#define RK_GRF_MACPHY_CON0 0xb00
#define RK_GRF_MACPHY_CON1 0xb04
#define RK_GRF_MACPHY_CON2 0xb08
@ -1267,6 +1319,7 @@ static const struct of_device_id rk_gmac_dwmac_match[] = {
{ .compatible = "rockchip,rk3366-gmac", .data = &rk3366_ops },
{ .compatible = "rockchip,rk3368-gmac", .data = &rk3368_ops },
{ .compatible = "rockchip,rk3399-gmac", .data = &rk3399_ops },
{ .compatible = "rockchip,rv1108-gmac", .data = &rv1108_ops },
{ }
};
MODULE_DEVICE_TABLE(of, rk_gmac_dwmac_match);