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Message-Id: <E1uPk2t-004CFN-Td@rmk-PC.armlinux.org.uk>
Date: Thu, 12 Jun 2025 16:40:51 +0100
From: "Russell King (Oracle)" <rmk+kernel@...linux.org.uk>
To: Andrew Lunn <andrew@...n.ch>,
Heiner Kallweit <hkallweit1@...il.com>
Cc: Alexandre Torgue <alexandre.torgue@...s.st.com>,
Andrew Lunn <andrew+netdev@...n.ch>,
"David S. Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>,
linux-arm-kernel@...ts.infradead.org,
linux-stm32@...md-mailman.stormreply.com,
Maxime Coquelin <mcoquelin.stm32@...il.com>,
netdev@...r.kernel.org,
Paolo Abeni <pabeni@...hat.com>
Subject: [PATCH net-next 3/9] net: stmmac: rk: add struct for programming
register based speeds
There is a common pattern in the driver where many SoCs need to write a
single register with a value dependent on the interface mode and speed.
Rather than having a lot of repeated code, add some common functions
and a struct to contain the values to be written to a register to
select the RGMII and RMII speeds.
Signed-off-by: Russell King (Oracle) <rmk+kernel@...linux.org.uk>
---
.../net/ethernet/stmicro/stmmac/dwmac-rk.c | 432 +++++++++---------
1 file changed, 204 insertions(+), 228 deletions(-)
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
index 7a1a9f54748d..7b5e989bb77f 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
@@ -24,6 +24,15 @@
#include "stmmac_platform.h"
struct rk_priv_data;
+
+struct rk_reg_speed_data {
+ unsigned int rgmii_10;
+ unsigned int rgmii_100;
+ unsigned int rgmii_1000;
+ unsigned int rmii_10;
+ unsigned int rmii_100;
+};
+
struct rk_gmac_ops {
void (*set_to_rgmii)(struct rk_priv_data *bsp_priv,
int tx_delay, int rx_delay);
@@ -83,6 +92,67 @@ struct rk_priv_data {
struct regmap *php_grf;
};
+static int rk_set_reg_speed(struct rk_priv_data *bsp_priv,
+ const struct rk_reg_speed_data *rsd,
+ unsigned int reg, phy_interface_t interface,
+ int speed)
+{
+ unsigned int val;
+
+ if (phy_interface_mode_is_rgmii(interface)) {
+ if (speed == SPEED_10) {
+ val = rsd->rgmii_10;
+ } else if (speed == SPEED_100) {
+ val = rsd->rgmii_100;
+ } else if (speed == SPEED_1000) {
+ val = rsd->rgmii_1000;
+ } else {
+ /* Phylink will not allow inappropriate speeds for
+ * interface modes, so this should never happen.
+ */
+ return -EINVAL;
+ }
+ } else if (interface == PHY_INTERFACE_MODE_RMII) {
+ if (speed == SPEED_10) {
+ val = rsd->rmii_10;
+ } else if (speed == SPEED_100) {
+ val = rsd->rmii_100;
+ } else {
+ /* Phylink will not allow inappropriate speeds for
+ * interface modes, so this should never happen.
+ */
+ return -EINVAL;
+ }
+ } else {
+ /* This should never happen, as .get_interfaces() limits
+ * the interface modes that are supported to RGMII and/or
+ * RMII.
+ */
+ return -EINVAL;
+ }
+
+ regmap_write(bsp_priv->grf, reg, val);
+
+ return 0;
+
+}
+
+static int rk_set_reg_speed_rgmii(struct rk_priv_data *bsp_priv,
+ const struct rk_reg_speed_data *rsd,
+ unsigned int reg, int speed)
+{
+ return rk_set_reg_speed(bsp_priv, rsd, reg, PHY_INTERFACE_MODE_RGMII,
+ speed);
+}
+
+static int rk_set_reg_speed_rmii(struct rk_priv_data *bsp_priv,
+ const struct rk_reg_speed_data *rsd,
+ unsigned int reg, int speed)
+{
+ return rk_set_reg_speed(bsp_priv, rsd, reg, PHY_INTERFACE_MODE_RMII,
+ speed);
+}
+
#define HIWORD_UPDATE(val, mask, shift) \
((val) << (shift) | (mask) << ((shift) + 16))
@@ -261,40 +331,30 @@ static void rk3128_set_to_rmii(struct rk_priv_data *bsp_priv)
RK3128_GMAC_PHY_INTF_SEL_RMII | RK3128_GMAC_RMII_MODE);
}
+static const struct rk_reg_speed_data rk3128_reg_speed_data = {
+ .rgmii_10 = RK3128_GMAC_CLK_2_5M,
+ .rgmii_100 = RK3128_GMAC_CLK_25M,
+ .rgmii_1000 = RK3128_GMAC_CLK_125M,
+ .rmii_10 = RK3128_GMAC_RMII_CLK_2_5M | RK3128_GMAC_SPEED_10M,
+ .rmii_100 = RK3128_GMAC_RMII_CLK_25M | RK3128_GMAC_SPEED_100M,
+};
+
static void rk3128_set_rgmii_speed(struct rk_priv_data *bsp_priv, int speed)
{
struct device *dev = &bsp_priv->pdev->dev;
- unsigned int con1;
- if (speed == 10) {
- con1 = RK3128_GMAC_CLK_2_5M;
- } else if (speed == 100) {
- con1 = RK3128_GMAC_CLK_25M;
- } else if (speed == 1000) {
- con1 = RK3128_GMAC_CLK_125M;
- } else {
+ if (rk_set_reg_speed_rgmii(bsp_priv, &rk3128_reg_speed_data,
+ RK3128_GRF_MAC_CON1, speed))
dev_err(dev, "unknown speed value for RGMII! speed=%d", speed);
- return;
- }
-
- regmap_write(bsp_priv->grf, RK3128_GRF_MAC_CON1, con1);
}
static void rk3128_set_rmii_speed(struct rk_priv_data *bsp_priv, int speed)
{
struct device *dev = &bsp_priv->pdev->dev;
- unsigned int con1;
- if (speed == 10) {
- con1 = RK3128_GMAC_RMII_CLK_2_5M | RK3128_GMAC_SPEED_10M;
- } else if (speed == 100) {
- con1 = RK3128_GMAC_RMII_CLK_25M | RK3128_GMAC_SPEED_100M;
- } else {
+ if (rk_set_reg_speed_rmii(bsp_priv, &rk3128_reg_speed_data,
+ RK3128_GRF_MAC_CON1, speed))
dev_err(dev, "unknown speed value for RMII! speed=%d", speed);
- return;
- }
-
- regmap_write(bsp_priv->grf, RK3128_GRF_MAC_CON1, con1);
}
static const struct rk_gmac_ops rk3128_ops = {
@@ -360,40 +420,30 @@ static void rk3228_set_to_rmii(struct rk_priv_data *bsp_priv)
regmap_write(bsp_priv->grf, RK3228_GRF_MAC_CON1, GRF_BIT(11));
}
+static const struct rk_reg_speed_data rk3228_reg_speed_data = {
+ .rgmii_10 = RK3228_GMAC_CLK_2_5M,
+ .rgmii_100 = RK3228_GMAC_CLK_25M,
+ .rgmii_1000 = RK3228_GMAC_CLK_125M,
+ .rmii_10 = RK3228_GMAC_RMII_CLK_2_5M | RK3228_GMAC_SPEED_10M,
+ .rmii_100 = RK3228_GMAC_RMII_CLK_25M | RK3228_GMAC_SPEED_100M,
+};
+
static void rk3228_set_rgmii_speed(struct rk_priv_data *bsp_priv, int speed)
{
struct device *dev = &bsp_priv->pdev->dev;
- unsigned int con1;
- if (speed == 10) {
- con1 = RK3228_GMAC_CLK_2_5M;
- } else if (speed == 100) {
- con1 = RK3228_GMAC_CLK_25M;
- } else if (speed == 1000) {
- con1 = RK3228_GMAC_CLK_125M;
- } else {
+ if (rk_set_reg_speed_rgmii(bsp_priv, &rk3228_reg_speed_data,
+ RK3228_GRF_MAC_CON1, speed))
dev_err(dev, "unknown speed value for RGMII! speed=%d", speed);
- return;
- }
-
- regmap_write(bsp_priv->grf, RK3228_GRF_MAC_CON1, con1);
}
static void rk3228_set_rmii_speed(struct rk_priv_data *bsp_priv, int speed)
{
struct device *dev = &bsp_priv->pdev->dev;
- unsigned int con1;
- if (speed == 10) {
- con1 = RK3228_GMAC_RMII_CLK_2_5M | RK3228_GMAC_SPEED_10M;
- } else if (speed == 100) {
- con1 = RK3228_GMAC_RMII_CLK_25M | RK3228_GMAC_SPEED_100M;
- } else {
+ if (rk_set_reg_speed_rmii(bsp_priv, &rk3228_reg_speed_data,
+ RK3228_GRF_MAC_CON1, speed))
dev_err(dev, "unknown speed value for RMII! speed=%d", speed);
- return;
- }
-
- regmap_write(bsp_priv->grf, RK3228_GRF_MAC_CON1, con1);
}
static void rk3228_integrated_phy_powerup(struct rk_priv_data *priv)
@@ -459,40 +509,30 @@ static void rk3288_set_to_rmii(struct rk_priv_data *bsp_priv)
RK3288_GMAC_PHY_INTF_SEL_RMII | RK3288_GMAC_RMII_MODE);
}
+static const struct rk_reg_speed_data rk3288_reg_speed_data = {
+ .rgmii_10 = RK3288_GMAC_CLK_2_5M,
+ .rgmii_100 = RK3288_GMAC_CLK_25M,
+ .rgmii_1000 = RK3288_GMAC_CLK_125M,
+ .rmii_10 = RK3288_GMAC_RMII_CLK_2_5M | RK3288_GMAC_SPEED_10M,
+ .rmii_100 = RK3288_GMAC_RMII_CLK_25M | RK3288_GMAC_SPEED_100M,
+};
+
static void rk3288_set_rgmii_speed(struct rk_priv_data *bsp_priv, int speed)
{
struct device *dev = &bsp_priv->pdev->dev;
- unsigned int con1;
- if (speed == 10) {
- con1 = RK3288_GMAC_CLK_2_5M;
- } else if (speed == 100) {
- con1 = RK3288_GMAC_CLK_25M;
- } else if (speed == 1000) {
- con1 = RK3288_GMAC_CLK_125M;
- } else {
+ if (rk_set_reg_speed_rgmii(bsp_priv, &rk3288_reg_speed_data,
+ RK3288_GRF_SOC_CON1, speed))
dev_err(dev, "unknown speed value for RGMII! speed=%d", speed);
- return;
- }
-
- regmap_write(bsp_priv->grf, RK3288_GRF_SOC_CON1, con1);
}
static void rk3288_set_rmii_speed(struct rk_priv_data *bsp_priv, int speed)
{
struct device *dev = &bsp_priv->pdev->dev;
- unsigned int con1;
- if (speed == 10) {
- con1 = RK3288_GMAC_RMII_CLK_2_5M | RK3288_GMAC_SPEED_10M;
- } else if (speed == 100) {
- con1 = RK3288_GMAC_RMII_CLK_25M | RK3288_GMAC_SPEED_100M;
- } else {
+ if (rk_set_reg_speed_rmii(bsp_priv, &rk3288_reg_speed_data,
+ RK3288_GRF_SOC_CON1, speed))
dev_err(dev, "unknown speed value for RMII! speed=%d", speed);
- return;
- }
-
- regmap_write(bsp_priv->grf, RK3288_GRF_SOC_CON1, con1);
}
static const struct rk_gmac_ops rk3288_ops = {
@@ -518,21 +558,18 @@ static void rk3308_set_to_rmii(struct rk_priv_data *bsp_priv)
RK3308_GMAC_PHY_INTF_SEL_RMII);
}
+static const struct rk_reg_speed_data rk3308_reg_speed_data = {
+ .rmii_10 = RK3308_GMAC_SPEED_10M,
+ .rmii_100 = RK3308_GMAC_SPEED_100M,
+};
+
static void rk3308_set_rmii_speed(struct rk_priv_data *bsp_priv, int speed)
{
struct device *dev = &bsp_priv->pdev->dev;
- unsigned int con0;
- if (speed == 10) {
- con0 = RK3308_GMAC_SPEED_10M;
- } else if (speed == 100) {
- con0 = RK3308_GMAC_SPEED_100M;
- } else {
+ if (rk_set_reg_speed_rmii(bsp_priv, &rk3308_reg_speed_data,
+ RK3308_GRF_MAC_CON0, speed))
dev_err(dev, "unknown speed value for RMII! speed=%d", speed);
- return;
- }
-
- regmap_write(bsp_priv->grf, RK3308_GRF_MAC_CON0, con0);
}
static const struct rk_gmac_ops rk3308_ops = {
@@ -599,43 +636,33 @@ static void rk3328_set_to_rmii(struct rk_priv_data *bsp_priv)
RK3328_GMAC_RMII_MODE);
}
+static const struct rk_reg_speed_data rk3328_reg_speed_data = {
+ .rgmii_10 = RK3328_GMAC_CLK_2_5M,
+ .rgmii_100 = RK3328_GMAC_CLK_25M,
+ .rgmii_1000 = RK3328_GMAC_CLK_125M,
+ .rmii_10 = RK3328_GMAC_RMII_CLK_2_5M | RK3328_GMAC_SPEED_10M,
+ .rmii_100 = RK3328_GMAC_RMII_CLK_25M | RK3328_GMAC_SPEED_100M,
+};
+
static void rk3328_set_rgmii_speed(struct rk_priv_data *bsp_priv, int speed)
{
struct device *dev = &bsp_priv->pdev->dev;
- unsigned int con1;
- if (speed == 10) {
- con1 = RK3328_GMAC_CLK_2_5M;
- } else if (speed == 100) {
- con1 = RK3328_GMAC_CLK_25M;
- } else if (speed == 1000) {
- con1 = RK3328_GMAC_CLK_125M;
- } else {
+ if (rk_set_reg_speed_rgmii(bsp_priv, &rk3328_reg_speed_data,
+ RK3328_GRF_MAC_CON1, speed))
dev_err(dev, "unknown speed value for RGMII! speed=%d", speed);
- return;
- }
-
- regmap_write(bsp_priv->grf, RK3328_GRF_MAC_CON1, con1);
}
static void rk3328_set_rmii_speed(struct rk_priv_data *bsp_priv, int speed)
{
struct device *dev = &bsp_priv->pdev->dev;
- unsigned int reg, con;
+ unsigned int reg;
reg = bsp_priv->integrated_phy ? RK3328_GRF_MAC_CON2 :
RK3328_GRF_MAC_CON1;
- if (speed == 10) {
- con = RK3328_GMAC_RMII_CLK_2_5M | RK3328_GMAC_SPEED_10M;
- } else if (speed == 100) {
- con = RK3328_GMAC_RMII_CLK_25M | RK3328_GMAC_SPEED_100M;
- } else {
+ if (rk_set_reg_speed_rmii(bsp_priv, &rk3328_reg_speed_data, reg, speed))
dev_err(dev, "unknown speed value for RMII! speed=%d", speed);
- return;
- }
-
- regmap_write(bsp_priv->grf, reg, con);
}
static void rk3328_integrated_phy_powerup(struct rk_priv_data *priv)
@@ -701,40 +728,30 @@ static void rk3366_set_to_rmii(struct rk_priv_data *bsp_priv)
RK3366_GMAC_PHY_INTF_SEL_RMII | RK3366_GMAC_RMII_MODE);
}
+static const struct rk_reg_speed_data rk3366_reg_speed_data = {
+ .rgmii_10 = RK3366_GMAC_CLK_2_5M,
+ .rgmii_100 = RK3366_GMAC_CLK_25M,
+ .rgmii_1000 = RK3366_GMAC_CLK_125M,
+ .rmii_10 = RK3366_GMAC_RMII_CLK_2_5M | RK3366_GMAC_SPEED_10M,
+ .rmii_100 = RK3366_GMAC_RMII_CLK_25M | RK3366_GMAC_SPEED_100M,
+};
+
static void rk3366_set_rgmii_speed(struct rk_priv_data *bsp_priv, int speed)
{
struct device *dev = &bsp_priv->pdev->dev;
- unsigned int con6;
- if (speed == 10) {
- con6 = RK3366_GMAC_CLK_2_5M;
- } else if (speed == 100) {
- con6 = RK3366_GMAC_CLK_25M;
- } else if (speed == 1000) {
- con6 = RK3366_GMAC_CLK_125M;
- } else {
+ if (rk_set_reg_speed_rgmii(bsp_priv, &rk3366_reg_speed_data,
+ RK3366_GRF_SOC_CON6, speed))
dev_err(dev, "unknown speed value for RGMII! speed=%d", speed);
- return;
- }
-
- regmap_write(bsp_priv->grf, RK3366_GRF_SOC_CON6, con6);
}
static void rk3366_set_rmii_speed(struct rk_priv_data *bsp_priv, int speed)
{
struct device *dev = &bsp_priv->pdev->dev;
- unsigned int con6;
- if (speed == 10) {
- con6 = RK3366_GMAC_RMII_CLK_2_5M | RK3366_GMAC_SPEED_10M;
- } else if (speed == 100) {
- con6 = RK3366_GMAC_RMII_CLK_25M | RK3366_GMAC_SPEED_100M;
- } else {
+ if (rk_set_reg_speed_rmii(bsp_priv, &rk3366_reg_speed_data,
+ RK3366_GRF_SOC_CON6, speed))
dev_err(dev, "unknown speed value for RMII! speed=%d", speed);
- return;
- }
-
- regmap_write(bsp_priv->grf, RK3366_GRF_SOC_CON6, con6);
}
static const struct rk_gmac_ops rk3366_ops = {
@@ -790,40 +807,30 @@ static void rk3368_set_to_rmii(struct rk_priv_data *bsp_priv)
RK3368_GMAC_PHY_INTF_SEL_RMII | RK3368_GMAC_RMII_MODE);
}
+static const struct rk_reg_speed_data rk3368_reg_speed_data = {
+ .rgmii_10 = RK3368_GMAC_CLK_2_5M,
+ .rgmii_100 = RK3368_GMAC_CLK_25M,
+ .rgmii_1000 = RK3368_GMAC_CLK_125M,
+ .rmii_10 = RK3368_GMAC_RMII_CLK_2_5M | RK3368_GMAC_SPEED_10M,
+ .rmii_100 = RK3368_GMAC_RMII_CLK_25M | RK3368_GMAC_SPEED_100M,
+};
+
static void rk3368_set_rgmii_speed(struct rk_priv_data *bsp_priv, int speed)
{
struct device *dev = &bsp_priv->pdev->dev;
- unsigned int con15;
- if (speed == 10) {
- con15 = RK3368_GMAC_CLK_2_5M;
- } else if (speed == 100) {
- con15 = RK3368_GMAC_CLK_25M;
- } else if (speed == 1000) {
- con15 = RK3368_GMAC_CLK_125M;
- } else {
+ if (rk_set_reg_speed_rgmii(bsp_priv, &rk3368_reg_speed_data,
+ RK3368_GRF_SOC_CON15, speed))
dev_err(dev, "unknown speed value for RGMII! speed=%d", speed);
- return;
- }
-
- regmap_write(bsp_priv->grf, RK3368_GRF_SOC_CON15, con15);
}
static void rk3368_set_rmii_speed(struct rk_priv_data *bsp_priv, int speed)
{
struct device *dev = &bsp_priv->pdev->dev;
- unsigned int con15;
- if (speed == 10) {
- con15 = RK3368_GMAC_RMII_CLK_2_5M | RK3368_GMAC_SPEED_10M;
- } else if (speed == 100) {
- con15 = RK3368_GMAC_RMII_CLK_25M | RK3368_GMAC_SPEED_100M;
- } else {
+ if (rk_set_reg_speed_rmii(bsp_priv, &rk3368_reg_speed_data,
+ RK3368_GRF_SOC_CON15, speed))
dev_err(dev, "unknown speed value for RMII! speed=%d", speed);
- return;
- }
-
- regmap_write(bsp_priv->grf, RK3368_GRF_SOC_CON15, con15);
}
static const struct rk_gmac_ops rk3368_ops = {
@@ -879,40 +886,30 @@ static void rk3399_set_to_rmii(struct rk_priv_data *bsp_priv)
RK3399_GMAC_PHY_INTF_SEL_RMII | RK3399_GMAC_RMII_MODE);
}
+static const struct rk_reg_speed_data rk3399_reg_speed_data = {
+ .rgmii_10 = RK3399_GMAC_CLK_2_5M,
+ .rgmii_100 = RK3399_GMAC_CLK_25M,
+ .rgmii_1000 = RK3399_GMAC_CLK_125M,
+ .rmii_10 = RK3399_GMAC_RMII_CLK_2_5M | RK3399_GMAC_SPEED_10M,
+ .rmii_100 = RK3399_GMAC_RMII_CLK_25M | RK3399_GMAC_SPEED_100M,
+};
+
static void rk3399_set_rgmii_speed(struct rk_priv_data *bsp_priv, int speed)
{
struct device *dev = &bsp_priv->pdev->dev;
- unsigned int con5;
- if (speed == 10) {
- con5 = RK3399_GMAC_CLK_2_5M;
- } else if (speed == 100) {
- con5 = RK3399_GMAC_CLK_25M;
- } else if (speed == 1000) {
- con5 = RK3399_GMAC_CLK_125M;
- } else {
+ if (rk_set_reg_speed_rgmii(bsp_priv, &rk3399_reg_speed_data,
+ RK3399_GRF_SOC_CON5, speed))
dev_err(dev, "unknown speed value for RGMII! speed=%d", speed);
- return;
- }
-
- regmap_write(bsp_priv->grf, RK3399_GRF_SOC_CON5, con5);
}
static void rk3399_set_rmii_speed(struct rk_priv_data *bsp_priv, int speed)
{
struct device *dev = &bsp_priv->pdev->dev;
- unsigned int con5;
- if (speed == 10) {
- con5 = RK3399_GMAC_RMII_CLK_2_5M | RK3399_GMAC_SPEED_10M;
- } else if (speed == 100) {
- con5 = RK3399_GMAC_RMII_CLK_25M | RK3399_GMAC_SPEED_100M;
- } else {
+ if (rk_set_reg_speed_rmii(bsp_priv, &rk3399_reg_speed_data,
+ RK3399_GRF_SOC_CON5, speed))
dev_err(dev, "unknown speed value for RMII! speed=%d", speed);
- return;
- }
-
- regmap_write(bsp_priv->grf, RK3399_GRF_SOC_CON5, con5);
}
static const struct rk_gmac_ops rk3399_ops = {
@@ -982,45 +979,44 @@ static void rk3528_set_to_rmii(struct rk_priv_data *bsp_priv)
RK3528_GMAC0_CLK_RMII_DIV2);
}
+static const struct rk_reg_speed_data rk3528_gmac0_reg_speed_data = {
+ .rmii_10 = RK3528_GMAC0_CLK_RMII_DIV20,
+ .rmii_100 = RK3528_GMAC0_CLK_RMII_DIV2,
+};
+
+static const struct rk_reg_speed_data rk3528_gmac1_reg_speed_data = {
+ .rgmii_10 = RK3528_GMAC1_CLK_RGMII_DIV50,
+ .rgmii_100 = RK3528_GMAC1_CLK_RGMII_DIV5,
+ .rgmii_1000 = RK3528_GMAC1_CLK_RGMII_DIV1,
+ .rmii_10 = RK3528_GMAC1_CLK_RMII_DIV20,
+ .rmii_100 = RK3528_GMAC1_CLK_RMII_DIV2,
+};
+
static void rk3528_set_rgmii_speed(struct rk_priv_data *bsp_priv, int speed)
{
struct device *dev = &bsp_priv->pdev->dev;
- unsigned int con5;
- if (speed == 10) {
- con5 = RK3528_GMAC1_CLK_RGMII_DIV50;
- } else if (speed == 100) {
- con5 = RK3528_GMAC1_CLK_RGMII_DIV5;
- } else if (speed == 1000) {
- con5 = RK3528_GMAC1_CLK_RGMII_DIV1;
- } else {
+ if (rk_set_reg_speed_rgmii(bsp_priv, &rk3528_gmac1_reg_speed_data,
+ RK3528_VPU_GRF_GMAC_CON5, speed))
dev_err(dev, "unknown speed value for RGMII! speed=%d", speed);
- return;
- }
-
- regmap_write(bsp_priv->grf, RK3528_VPU_GRF_GMAC_CON5, con5);
}
static void rk3528_set_rmii_speed(struct rk_priv_data *bsp_priv, int speed)
{
struct device *dev = &bsp_priv->pdev->dev;
- unsigned int reg, val;
+ const struct rk_reg_speed_data *rsd;
+ unsigned int reg;
- if (speed == 10) {
- val = bsp_priv->id == 1 ? RK3528_GMAC1_CLK_RMII_DIV20 :
- RK3528_GMAC0_CLK_RMII_DIV20;
- } else if (speed == 100) {
- val = bsp_priv->id == 1 ? RK3528_GMAC1_CLK_RMII_DIV2 :
- RK3528_GMAC0_CLK_RMII_DIV2;
+ if (bsp_priv->id == 1) {
+ rsd = &rk3528_gmac1_reg_speed_data;
+ reg = RK3528_VPU_GRF_GMAC_CON5;
} else {
- dev_err(dev, "unknown speed value for RMII! speed=%d", speed);
- return;
+ rsd = &rk3528_gmac0_reg_speed_data;
+ reg = RK3528_VO_GRF_GMAC_CON;
}
- reg = bsp_priv->id == 1 ? RK3528_VPU_GRF_GMAC_CON5 :
- RK3528_VO_GRF_GMAC_CON;
-
- regmap_write(bsp_priv->grf, reg, val);
+ if (rk_set_reg_speed_rmii(bsp_priv, rsd, reg, speed))
+ dev_err(dev, "unknown speed value for RMII! speed=%d", speed);
}
static void rk3528_set_clock_selection(struct rk_priv_data *bsp_priv,
@@ -1224,42 +1220,25 @@ static void rk3576_set_to_rmii(struct rk_priv_data *bsp_priv)
regmap_write(bsp_priv->grf, offset_con, RK3576_GMAC_RMII_MODE);
}
+static const struct rk_reg_speed_data rk3578_reg_speed_data = {
+ .rgmii_10 = RK3576_GMAC_CLK_RGMII_DIV50,
+ .rgmii_100 = RK3576_GMAC_CLK_RGMII_DIV5,
+ .rgmii_1000 = RK3576_GMAC_CLK_RGMII_DIV1,
+ .rmii_10 = RK3576_GMAC_CLK_RMII_DIV20,
+ .rmii_100 = RK3576_GMAC_CLK_RMII_DIV2,
+};
+
static void rk3576_set_gmac_speed(struct rk_priv_data *bsp_priv, int speed)
{
struct device *dev = &bsp_priv->pdev->dev;
- unsigned int val = 0, offset_con;
-
- switch (speed) {
- case 10:
- if (bsp_priv->phy_iface == PHY_INTERFACE_MODE_RMII)
- val = RK3576_GMAC_CLK_RMII_DIV20;
- else
- val = RK3576_GMAC_CLK_RGMII_DIV50;
- break;
- case 100:
- if (bsp_priv->phy_iface == PHY_INTERFACE_MODE_RMII)
- val = RK3576_GMAC_CLK_RMII_DIV2;
- else
- val = RK3576_GMAC_CLK_RGMII_DIV5;
- break;
- case 1000:
- if (bsp_priv->phy_iface != PHY_INTERFACE_MODE_RMII)
- val = RK3576_GMAC_CLK_RGMII_DIV1;
- else
- goto err;
- break;
- default:
- goto err;
- }
+ unsigned int offset_con;
offset_con = bsp_priv->id == 1 ? RK3576_GRF_GMAC_CON1 :
RK3576_GRF_GMAC_CON0;
- regmap_write(bsp_priv->grf, offset_con, val);
-
- return;
-err:
- dev_err(dev, "unknown speed value for GMAC speed=%d", speed);
+ if (rk_set_reg_speed(bsp_priv, &rk3578_reg_speed_data, offset_con,
+ bsp_priv->phy_iface, speed))
+ dev_err(dev, "unknown speed value for GMAC speed=%d", speed);
}
static void rk3576_set_clock_selection(struct rk_priv_data *bsp_priv, bool input,
@@ -1446,21 +1425,18 @@ static void rv1108_set_to_rmii(struct rk_priv_data *bsp_priv)
RV1108_GMAC_PHY_INTF_SEL_RMII);
}
+static const struct rk_reg_speed_data rv1108_reg_speed_data = {
+ .rmii_10 = RV1108_GMAC_RMII_CLK_2_5M | RV1108_GMAC_SPEED_10M,
+ .rmii_100 = RV1108_GMAC_RMII_CLK_25M | RV1108_GMAC_SPEED_100M,
+};
+
static void rv1108_set_rmii_speed(struct rk_priv_data *bsp_priv, int speed)
{
struct device *dev = &bsp_priv->pdev->dev;
- unsigned int con0;
- if (speed == 10) {
- con0 = RV1108_GMAC_RMII_CLK_2_5M | RV1108_GMAC_SPEED_10M;
- } else if (speed == 100) {
- con0 = RV1108_GMAC_RMII_CLK_25M | RV1108_GMAC_SPEED_100M;
- } else {
+ if (rk_set_reg_speed_rmii(bsp_priv, &rv1108_reg_speed_data,
+ RV1108_GRF_GMAC_CON0, speed))
dev_err(dev, "unknown speed value for RMII! speed=%d", speed);
- return;
- }
-
- regmap_write(bsp_priv->grf, RV1108_GRF_GMAC_CON0, con0);
}
static const struct rk_gmac_ops rv1108_ops = {
--
2.30.2
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