diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/gmac_rockchip.c | 115 |
1 files changed, 109 insertions, 6 deletions
diff --git a/drivers/net/gmac_rockchip.c b/drivers/net/gmac_rockchip.c index 586ccbff0a..cfffe2979d 100644 --- a/drivers/net/gmac_rockchip.c +++ b/drivers/net/gmac_rockchip.c @@ -18,6 +18,7 @@ #include <asm/arch/grf_rk3288.h> #include <asm/arch/grf_rk3368.h> #include <asm/arch/grf_rk3399.h> +#include <asm/arch/grf_rv1108.h> #include <dm/pinctrl.h> #include <dt-bindings/clock/rk3288-cru.h> #include "designware.h" @@ -31,12 +32,14 @@ DECLARE_GLOBAL_DATA_PTR; */ struct gmac_rockchip_platdata { struct dw_eth_pdata dw_eth_pdata; + bool clock_input; int tx_delay; int rx_delay; }; struct rk_gmac_ops { int (*fix_mac_speed)(struct dw_eth_dev *priv); + void (*set_to_rmii)(struct gmac_rockchip_platdata *pdata); void (*set_to_rgmii)(struct gmac_rockchip_platdata *pdata); }; @@ -44,6 +47,13 @@ struct rk_gmac_ops { static int gmac_rockchip_ofdata_to_platdata(struct udevice *dev) { struct gmac_rockchip_platdata *pdata = dev_get_platdata(dev); + const char *string; + + string = dev_read_string(dev, "clock_in_out"); + if (!strcmp(string, "input")) + pdata->clock_input = true; + else + pdata->clock_input = false; /* Check the new naming-style first... */ pdata->tx_delay = dev_read_u32_default(dev, "tx_delay", -ENOENT); @@ -142,6 +152,41 @@ static int rk3399_gmac_fix_mac_speed(struct dw_eth_dev *priv) return 0; } +static int rv1108_set_rmii_speed(struct dw_eth_dev *priv) +{ + struct rv1108_grf *grf; + int clk, speed; + enum { + RV1108_GMAC_SPEED_MASK = BIT(2), + RV1108_GMAC_SPEED_10M = 0 << 2, + RV1108_GMAC_SPEED_100M = 1 << 2, + RV1108_GMAC_CLK_SEL_MASK = BIT(7), + RV1108_GMAC_CLK_SEL_2_5M = 0 << 7, + RV1108_GMAC_CLK_SEL_25M = 1 << 7, + }; + + switch (priv->phydev->speed) { + case 10: + clk = RV1108_GMAC_CLK_SEL_2_5M; + speed = RV1108_GMAC_SPEED_10M; + break; + case 100: + clk = RV1108_GMAC_CLK_SEL_25M; + speed = RV1108_GMAC_SPEED_100M; + break; + default: + debug("Unknown phy speed: %d\n", priv->phydev->speed); + return -EINVAL; + } + + grf = syscon_get_first_range(ROCKCHIP_SYSCON_GRF); + rk_clrsetreg(&grf->gmac_con0, + RV1108_GMAC_CLK_SEL_MASK | RV1108_GMAC_SPEED_MASK, + clk | speed); + + return 0; +} + static void rk3288_gmac_set_to_rgmii(struct gmac_rockchip_platdata *pdata) { struct rk3288_grf *grf; @@ -221,25 +266,76 @@ static void rk3399_gmac_set_to_rgmii(struct gmac_rockchip_platdata *pdata) pdata->tx_delay << RK3399_CLK_TX_DL_CFG_GMAC_SHIFT); } +static void rv1108_gmac_set_to_rmii(struct gmac_rockchip_platdata *pdata) +{ + struct rv1108_grf *grf; + + enum { + RV1108_GMAC_PHY_INTF_SEL_MASK = GENMASK(6, 4), + RV1108_GMAC_PHY_INTF_SEL_RMII = 4 << 4, + }; + + grf = syscon_get_first_range(ROCKCHIP_SYSCON_GRF); + rk_clrsetreg(&grf->gmac_con0, + RV1108_GMAC_PHY_INTF_SEL_MASK, + RV1108_GMAC_PHY_INTF_SEL_RMII); +} + static int gmac_rockchip_probe(struct udevice *dev) { struct gmac_rockchip_platdata *pdata = dev_get_platdata(dev); struct rk_gmac_ops *ops = (struct rk_gmac_ops *)dev_get_driver_data(dev); + struct dw_eth_pdata *dw_pdata = dev_get_platdata(dev); + struct eth_pdata *eth_pdata = &dw_pdata->eth_pdata; struct clk clk; + ulong rate; int ret; ret = clk_get_by_index(dev, 0, &clk); if (ret) return ret; - /* Since mac_clk is fed by an external clock we can use 0 here */ - ret = clk_set_rate(&clk, 0); - if (ret) - return ret; + switch (eth_pdata->phy_interface) { + case PHY_INTERFACE_MODE_RGMII: + /* + * If the gmac clock is from internal pll, need to set and + * check the return value for gmac clock at RGMII mode. If + * the gmac clock is from external source, the clock rate + * is not set, because of it is bypassed. + */ + if (!pdata->clock_input) { + rate = clk_set_rate(&clk, 125000000); + if (rate != 125000000) + return -EINVAL; + } + + /* Set to RGMII mode */ + if (ops->set_to_rgmii) + ops->set_to_rgmii(pdata); + else + return -EPERM; - /* Set to RGMII mode */ - ops->set_to_rgmii(pdata); + break; + case PHY_INTERFACE_MODE_RMII: + /* The commet is the same as RGMII mode */ + if (!pdata->clock_input) { + rate = clk_set_rate(&clk, 50000000); + if (rate != 50000000) + return -EINVAL; + } + + /* Set to RMII mode */ + if (ops->set_to_rmii) + ops->set_to_rmii(pdata); + else + return -EPERM; + + break; + default: + debug("NO interface defined!\n"); + return -ENXIO; + } return designware_eth_probe(dev); } @@ -289,6 +385,11 @@ const struct rk_gmac_ops rk3399_gmac_ops = { .set_to_rgmii = rk3399_gmac_set_to_rgmii, }; +const struct rk_gmac_ops rv1108_gmac_ops = { + .fix_mac_speed = rv1108_set_rmii_speed, + .set_to_rmii = rv1108_gmac_set_to_rmii, +}; + static const struct udevice_id rockchip_gmac_ids[] = { { .compatible = "rockchip,rk3288-gmac", .data = (ulong)&rk3288_gmac_ops }, @@ -296,6 +397,8 @@ static const struct udevice_id rockchip_gmac_ids[] = { .data = (ulong)&rk3368_gmac_ops }, { .compatible = "rockchip,rk3399-gmac", .data = (ulong)&rk3399_gmac_ops }, + { .compatible = "rockchip,rv1108-gmac", + .data = (ulong)&rv1108_gmac_ops }, { } }; |