If the mac clock if from the external IO, set clock rate with 0;
If the mac clock if from the internal divider pll, set 50M for
rmii mode and set 125M for rgmii.
Signed-off-by: David Wu <david...@rock-chips.com>
---
drivers/net/gmac_rockchip.c | 23 +++++++++++++++++++----
1 file changed, 19 insertions(+), 4 deletions(-)
diff --git a/drivers/net/gmac_rockchip.c b/drivers/net/gmac_rockchip.c
index 5f8f0cd..26f7a96 100644
--- a/drivers/net/gmac_rockchip.c
+++ b/drivers/net/gmac_rockchip.c
@@ -29,6 +29,7 @@ DECLARE_GLOBAL_DATA_PTR;
struct gmac_rockchip_platdata {
struct dw_eth_pdata dw_eth_pdata;
void *grf;
+ int clk_in;
int tx_delay;
int rx_delay;
};
@@ -64,6 +65,8 @@ static int gmac_rockchip_ofdata_to_platdata(struct udevice
*dev)
{
struct gmac_rockchip_platdata *pdata = dev_get_platdata(dev);
+ pdata->clk_in = dev_read_u32_default(dev, "clock_in_out", 1);
+
/* Check the new naming-style first... */
pdata->tx_delay = dev_read_u32_default(dev, "tx_delay", -ENOENT);
pdata->rx_delay = dev_read_u32_default(dev, "rx_delay", -ENOENT);
@@ -294,6 +297,8 @@ static int gmac_rockchip_probe(struct udevice *dev)
struct gmac_rockchip_platdata *pdata = dev_get_platdata(dev);
struct gmac_rockchip_driver_data *data =
(struct gmac_rockchip_driver_data *)dev_get_driver_data(dev);
+ struct dw_eth_pdata *dw_pdata = dev_get_platdata(dev);
+ struct eth_pdata *eth_pdata = &dw_pdata->eth_pdata;
const struct rk_gmac_ops *ops = data->ops;
struct clk clk;
int ret;
@@ -302,10 +307,20 @@ static int gmac_rockchip_probe(struct udevice *dev)
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;
+ if (pdata->clk_in) {
+ /*
+ * Since mac_clk is fed by an external clock
+ * we can use 0 here.
+ */
+ ret = clk_set_rate(&clk, 0);
+ if (ret)
+ return ret;
+ } else {
+ if (eth_pdata->phy_interface == PHY_INTERFACE_MODE_RGMII)
+ clk_set_rate(&clk, 125000000);
+ else
+ clk_set_rate(&clk, 50000000);
+ }
pdata->grf = syscon_get_first_range(ROCKCHIP_SYSCON_GRF) +
data->grf_offset;
--
2.7.4
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