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Subject[PATCH v2 06/11] net: stmmac: dwmac-rk: Add internal phy support for rk3228
Date
There is only one mac controller in rk3228, which could connect to
external phy or internal phy, use the grf_com_mux bit15 to route
external/internal phy.

Signed-off-by: David Wu <david.wu@rock-chips.com>
---
drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c | 12 ++++++++++++
1 file changed, 12 insertions(+)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
index ec280d1..3ec9cd8 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
@@ -86,6 +86,8 @@ struct rk_priv_data {
#define RK3228_GRF_MAC_CON0 0x0900
#define RK3228_GRF_MAC_CON1 0x0904

+#define RK3228_GRF_CON_MUX 0x50
+
/* RK3228_GRF_MAC_CON0 */
#define RK3228_GMAC_CLK_RX_DL_CFG(val) HIWORD_UPDATE(val, 0x7F, 7)
#define RK3228_GMAC_CLK_TX_DL_CFG(val) HIWORD_UPDATE(val, 0x7F, 0)
@@ -111,6 +113,9 @@ struct rk_priv_data {
#define RK3228_GMAC_RXCLK_DLY_ENABLE GRF_BIT(1)
#define RK3228_GMAC_RXCLK_DLY_DISABLE GRF_CLR_BIT(1)

+/* RK3228_GRF_COM_MUX */
+#define RK3228_GRF_CON_MUX_GMAC_INTERNAL_PHY GRF_BIT(15)
+
static void rk3228_set_to_rgmii(struct rk_priv_data *bsp_priv,
int tx_delay, int rx_delay)
{
@@ -191,11 +196,18 @@ static void rk3228_set_rmii_speed(struct rk_priv_data *bsp_priv, int speed)
dev_err(dev, "unknown speed value for RMII! speed=%d", speed);
}

+static void rk3228_internal_phy_powerup(struct rk_priv_data *priv)
+{
+ regmap_write(priv->grf, RK3228_GRF_CON_MUX,
+ RK3228_GRF_CON_MUX_GMAC_INTERNAL_PHY);
+}
+
static const struct rk_gmac_ops rk3228_ops = {
.set_to_rgmii = rk3228_set_to_rgmii,
.set_to_rmii = rk3228_set_to_rmii,
.set_rgmii_speed = rk3228_set_rgmii_speed,
.set_rmii_speed = rk3228_set_rmii_speed,
+ .internal_phy_powerup = rk3228_internal_phy_powerup,
};

#define RK3288_GRF_SOC_CON1 0x0248
--
1.9.1

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