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ethernet: stmmac: dwmac-rk: Add MAC driver support for rk3308

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Add constants and callback functions for the dwmac on rk3308 soc.
The base structure is the same, but registers and the bits in
them moved slightly, and add the clk_mac_speed for the select
of mac speed.

Change-Id: Ieaea3ade9e51d5118f0eb855d8e02febfb2275d1
Signed-off-by: David Wu <david.wu@rock-chips.com>
This commit is contained in:
David Wu
2018-03-08 20:07:12 +08:00
committed by Tao Huang
parent e421fbd4cb
commit 67e46ea014
2 changed files with 61 additions and 1 deletions
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3
Documentation/devicetree/bindings/net/rockchip-dwmac.txt
View File

@@ -3,11 +3,12 @@ Rockchip SoC RK3288 10/100/1000 Ethernet driver(GMAC)
The device node has following properties.
Required properties:
- compatible: should be "rockchip,<name>-gamc"
- compatible: should be "rockchip,<name>-gmac" or "rockchip,<name>-mac"
"rockchip,px30-gmac": found on PX30 SoCs
"rockchip,rk3128-gmac": found on RK312x SoCs
"rockchip,rk3228-gmac": found on RK322x SoCs
"rockchip,rk3288-gmac": found on RK3288 SoCs
"rockchip,rk3308-mac": found on RK3308 SoCs
"rockchip,rk3328-gmac": found on RK3328 SoCs
"rockchip,rk3366-gmac": found on RK3366 SoCs
"rockchip,rk3368-gmac": found on RK3368 SoCs

59
drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
View File

@@ -491,6 +491,64 @@ static const struct rk_gmac_ops rk3288_ops = {
.set_rmii_speed = rk3288_set_rmii_speed,
};
#define RK3308_GRF_MAC_CON0 0x04a0
/* Rk3308_GRF_MAC_CON1 */
#define RK3308_MAC_PHY_INTF_SEL_RMII (GRF_CLR_BIT(2) | GRF_CLR_BIT(3) | \
GRF_BIT(4))
#define RK3308_MAC_SPEED_10M GRF_CLR_BIT(0)
#define Rk3308_MAC_SPEED_100M GRF_BIT(0)
static void rk3308_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, RK3308_GRF_MAC_CON0,
RK3308_MAC_PHY_INTF_SEL_RMII);
}
static void rk3308_set_rmii_speed(struct rk_priv_data *bsp_priv, int speed)
{
struct device *dev = &bsp_priv->pdev->dev;
int ret;
if (IS_ERR(bsp_priv->clk_mac_speed)) {
dev_err(dev, "%s: Missing clk_mac_speed clock\n", __func__);
return;
}
if (speed == 10) {
regmap_write(bsp_priv->grf, RK3308_GRF_MAC_CON0,
RK3308_MAC_SPEED_10M);
ret = clk_set_rate(bsp_priv->clk_mac_speed, 2500000);
if (ret)
dev_err(dev, "%s: set clk_mac_speed rate 2500000 failed: %d\n",
__func__, ret);
} else if (speed == 100) {
regmap_write(bsp_priv->grf, RK3308_GRF_MAC_CON0,
Rk3308_MAC_SPEED_100M);
ret = clk_set_rate(bsp_priv->clk_mac_speed, 25000000);
if (ret)
dev_err(dev, "%s: set clk_mac_speed rate 25000000 failed: %d\n",
__func__, ret);
} else {
dev_err(dev, "unknown speed value for RMII! speed=%d", speed);
}
}
static const struct rk_gmac_ops rk3308_ops = {
.set_to_rmii = rk3308_set_to_rmii,
.set_rmii_speed = rk3308_set_rmii_speed,
};
#define RK3328_GRF_MAC_CON0 0x0900
#define RK3328_GRF_MAC_CON1 0x0904
#define RK3328_GRF_MAC_CON2 0x0908
@@ -1519,6 +1577,7 @@ static const struct of_device_id rk_gmac_dwmac_match[] = {
{ .compatible = "rockchip,rk3128-gmac", .data = &rk3128_ops },
{ .compatible = "rockchip,rk3228-gmac", .data = &rk3228_ops },
{ .compatible = "rockchip,rk3288-gmac", .data = &rk3288_ops },
{ .compatible = "rockchip,rk3308-mac", .data = &rk3308_ops },
{ .compatible = "rockchip,rk3328-gmac", .data = &rk3328_ops },
{ .compatible = "rockchip,rk3366-gmac", .data = &rk3366_ops },
{ .compatible = "rockchip,rk3368-gmac", .data = &rk3368_ops },