[PATCH 1/5] dts: stm32mp157c-odyssey: set PLL4_P to 125Mhz for ETH_CLK

[PATCH 1/5] dts: stm32mp157c-odyssey: set PLL4_P to 125Mhz for ETH_CLK

[Heesub Shin]

Odyssey board requires ETH_CLK of 125Mhz. This commit sets PLL4_P/Q/R to
125, 62.5 and 62.5Mhz in respectively.

Signed-off-by: Heesub Shin <heesub@gmail.com>
---
 arch/arm/dts/stm32mp157c-odyssey-som-u-boot.dtsi | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/dts/stm32mp157c-odyssey-som-u-boot.dtsi b/arch/arm/dts/stm32mp157c-odyssey-som-u-boot.dtsi
index b780dbd95e..d07fdcf4bc 100644
--- a/arch/arm/dts/stm32mp157c-odyssey-som-u-boot.dtsi
+++ b/arch/arm/dts/stm32mp157c-odyssey-som-u-boot.dtsi
@@ -115,11 +115,11 @@
 		bootph-all;
 	};
 
-	/* VCO = 594.0 MHz => P = 99, Q = 74, R = 74 */
+	/* VCO = 750.0 MHz => P = 125, Q = 62.5, R = 62.5 */
 	pll4: st,pll@3 {
 		compatible = "st,stm32mp1-pll";
 		reg = <3>;
-		cfg = < 3 98 5 7 7 PQR(1,1,1) >;
+		cfg = < 3 124 5 9 9 PQR(1,1,1) >;
 		bootph-all;
 	};
 };
-- 
2.34.1

[PATCH 2/5] dts: stm32mp157c-odyssey: use internal clock for Tx

[Heesub Shin]

In Odyssey board, we should use the internal clock from RCC as the
transmit clock, instead of the external clock from ETH_CLK125 pad. This
commit adds a property, st,eth-clk-sel, so that the ETH_CLK_SEL mux
selects ETH_CLK.

Signed-off-by: Heesub Shin <heesub@gmail.com>
---
 arch/arm/dts/stm32mp157c-odyssey.dts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/dts/stm32mp157c-odyssey.dts b/arch/arm/dts/stm32mp157c-odyssey.dts
index 17bcf56f74..53ba018197 100644
--- a/arch/arm/dts/stm32mp157c-odyssey.dts
+++ b/arch/arm/dts/stm32mp157c-odyssey.dts
@@ -75,6 +75,7 @@
 	phy-mode = "rgmii-id";
 	max-speed = <1000>;
 	phy-handle = <&phy0>;
+	st,ext-phyclk;
 
 	mdio0 {
 		#address-cells = <1>;
-- 
2.34.1

[PATCH 3/5] dts: stm32mp157c-odyssey: fix incorrect PHY address

[Heesub Shin]

In Odyssey board, KSZ9031 is at the PHY address 0x7, not 0x0. This
commit fixes it.

Signed-off-by: Heesub Shin <heesub@gmail.com>
---
 arch/arm/dts/stm32mp157c-odyssey.dts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/dts/stm32mp157c-odyssey.dts b/arch/arm/dts/stm32mp157c-odyssey.dts
index 53ba018197..b6210cf8b2 100644
--- a/arch/arm/dts/stm32mp157c-odyssey.dts
+++ b/arch/arm/dts/stm32mp157c-odyssey.dts
@@ -81,8 +81,8 @@
 		#address-cells = <1>;
 		#size-cells = <0>;
 		compatible = "snps,dwmac-mdio";
-		phy0: ethernet-phy@0 {
-			reg = <0>;
+		phy0: ethernet-phy@7 {
+			reg = <7>;
 		};
 	};
 };
-- 
2.34.1

[PATCH 4/5] net: dwc_eth_qos: add support for phy-reset-gpios property

[Heesub Shin]

This commit adds support for a property 'phy-reset-gpios' to reset PHY
chipset.

Signed-off-by: Heesub Shin <heesub@gmail.com>
---
 drivers/net/dwc_eth_qos_stm32.c | 23 ++++++++++++++++++++++-
 1 file changed, 22 insertions(+), 1 deletion(-)

diff --git a/drivers/net/dwc_eth_qos_stm32.c b/drivers/net/dwc_eth_qos_stm32.c
index fbc08bba1d..cffaa10b70 100644
--- a/drivers/net/dwc_eth_qos_stm32.c
+++ b/drivers/net/dwc_eth_qos_stm32.c
@@ -266,6 +266,12 @@ static int eqos_probe_resources_stm32(struct udevice *dev)
 	if (ret)
 		dev_warn(dev, "No phy clock provided %d\n", ret);
 
+	/* Get reset gpio pin (optional) */
+	ret = gpio_request_by_name(dev, "phy-reset-gpios", 0,
+				   &eqos->phy_reset_gpio, GPIOD_IS_OUT);
+	if (ret)
+		pr_warn("No phy reset gpio provided: %d\n", ret);
+
 	dev_dbg(dev, "%s: OK\n", __func__);
 
 	return 0;
@@ -277,6 +283,21 @@ err_probe:
 	return ret;
 }
 
+static int eqos_start_resets_stm32(struct udevice *dev)
+{
+	struct eqos_priv *eqos = dev_get_priv(dev);
+
+	debug("%s(dev=%p):\n", __func__, dev);
+
+	if (dm_gpio_is_valid(&eqos->phy_reset_gpio)) {
+		dm_gpio_set_value(&eqos->phy_reset_gpio, 1);
+		udelay(2);
+		dm_gpio_set_value(&eqos->phy_reset_gpio, 0);
+	}
+
+	return 0;
+}
+
 static int eqos_remove_resources_stm32(struct udevice *dev)
 {
 	dev_dbg(dev, "%s:\n", __func__);
@@ -292,7 +313,7 @@ static struct eqos_ops eqos_stm32_ops = {
 	.eqos_probe_resources = eqos_probe_resources_stm32,
 	.eqos_remove_resources = eqos_remove_resources_stm32,
 	.eqos_stop_resets = eqos_null_ops,
-	.eqos_start_resets = eqos_null_ops,
+	.eqos_start_resets = eqos_start_resets_stm32,
 	.eqos_stop_clks = eqos_stop_clks_stm32,
 	.eqos_start_clks = eqos_start_clks_stm32,
 	.eqos_calibrate_pads = eqos_null_ops,
-- 
2.34.1

[PATCH 5/5] dts: stm32mp157c-odyssey: add phy-reset-gpios property to ethernet node

[Heesub Shin]

In Odyssey board, we should reset the PHY chipset, toggling G0 pin.

Signed-off-by: Heesub Shin <heesub@gmail.com>
---
 arch/arm/dts/stm32mp157c-odyssey.dts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/dts/stm32mp157c-odyssey.dts b/arch/arm/dts/stm32mp157c-odyssey.dts
index b6210cf8b2..4cc5e07683 100644
--- a/arch/arm/dts/stm32mp157c-odyssey.dts
+++ b/arch/arm/dts/stm32mp157c-odyssey.dts
@@ -75,6 +75,7 @@
 	phy-mode = "rgmii-id";
 	max-speed = <1000>;
 	phy-handle = <&phy0>;
+	phy-reset-gpios = <&gpiog 0 GPIO_ACTIVE_LOW>;
 	st,ext-phyclk;
 
 	mdio0 {
-- 
2.34.1