[PATCH 08/17] MIPS: loongson32: Convert Ethernet platform device to DT

From: Keguang Zhang
Date: Sat Jul 29 2023 - 09:45:02 EST

Add Ethernet device nodes for Loongson-1 boards,
and drop the legacy platform devices and data accordingly.

Signed-off-by: Keguang Zhang <keguang.zhang@xxxxxxxxx>
---
arch/mips/boot/dts/loongson/loongson1.dtsi | 16 ++
arch/mips/boot/dts/loongson/loongson1b.dtsi | 53 +++++++
arch/mips/boot/dts/loongson/loongson1c.dtsi | 17 ++
arch/mips/boot/dts/loongson/lsgz_1b_dev.dts | 8 +
arch/mips/boot/dts/loongson/smartloong_1c.dts | 4 +
arch/mips/loongson32/common/platform.c | 146 +-----------------
arch/mips/loongson32/ls1b/board.c | 2 -
arch/mips/loongson32/ls1c/board.c | 1 -
8 files changed, 99 insertions(+), 148 deletions(-)

diff --git a/arch/mips/boot/dts/loongson/loongson1.dtsi b/arch/mips/boot/dts/loongson/loongson1.dtsi
index c77aa2d0f66c..48bb786bbf10 100644
--- a/arch/mips/boot/dts/loongson/loongson1.dtsi
+++ b/arch/mips/boot/dts/loongson/loongson1.dtsi
@@ -71,6 +71,22 @@ intc3: interrupt-controller@1fd01088 {
interrupt-parent = <&cpu_intc>;
interrupts = <5>;
};
+
+ gmac0: ethernet@1fe10000 {
+ compatible = "snps,dwmac-3.70a";
+ reg = <0x1fe10000 0x10000>;
+
+ interrupt-parent = <&intc1>;
+ interrupt-names = "macirq";
+
+ clocks = <&clkc LS1X_CLKID_AHB>;
+ clock-names = "stmmaceth";
+
+ snps,pbl = <1>;
+
+ status = "disabled";
+ };
+
};

apb: bus@1fe40000 {
diff --git a/arch/mips/boot/dts/loongson/loongson1b.dtsi b/arch/mips/boot/dts/loongson/loongson1b.dtsi
index 437a77cee163..42b96c557660 100644
--- a/arch/mips/boot/dts/loongson/loongson1b.dtsi
+++ b/arch/mips/boot/dts/loongson/loongson1b.dtsi
@@ -7,6 +7,11 @@
#include "loongson1.dtsi"

/ {
+ aliases {
+ ethernet0 = &gmac0;
+ ethernet1 = &gmac1;
+ };
+
cpus {
#address-cells = <1>;
#size-cells = <0>;
@@ -74,6 +79,54 @@ clkc: clock-controller@1fe78030 {
};
};

+&ahb {
+ gmac1: ethernet@1fe20000 {
+ compatible = "snps,dwmac-3.70a";
+ reg = <0x1fe20000 0x10000>;
+
+ interrupt-parent = <&intc1>;
+ interrupts = <3 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "macirq";
+
+ clocks = <&clkc LS1X_CLKID_AHB>;
+ clock-names = "stmmaceth";
+
+ phy-handle = <&phy1>;
+ phy-mode = "mii";
+
+ snps,pbl = <1>;
+
+ status = "disabled";
+
+ mdio1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "snps,dwmac-mdio";
+
+ phy1: ethernet-phy@0 {
+ reg = <0x0>;
+ };
+ };
+ };
+};
+
+&gmac0 {
+ interrupts = <2 IRQ_TYPE_LEVEL_HIGH>;
+
+ phy-handle = <&phy0>;
+ phy-mode = "mii";
+
+ mdio0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "snps,dwmac-mdio";
+
+ phy0: ethernet-phy@0 {
+ reg = <0x0>;
+ };
+ };
+};
+
&uart1 {
interrupts = <3 IRQ_TYPE_LEVEL_HIGH>;
};
diff --git a/arch/mips/boot/dts/loongson/loongson1c.dtsi b/arch/mips/boot/dts/loongson/loongson1c.dtsi
index 1dd575b7b2f9..5b3e0f9280f6 100644
--- a/arch/mips/boot/dts/loongson/loongson1c.dtsi
+++ b/arch/mips/boot/dts/loongson/loongson1c.dtsi
@@ -41,6 +41,23 @@ intc4: interrupt-controller@1fd010a0 {
};
};

+&gmac0 {
+ interrupts = <3 IRQ_TYPE_LEVEL_HIGH>;
+
+ phy-handle = <&phy0>;
+ phy-mode = "rmii";
+
+ mdio0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "snps,dwmac-mdio";
+
+ phy0: ethernet-phy@13 {
+ reg = <0x13>;
+ };
+ };
+};
+
&uart1 {
interrupts = <4 IRQ_TYPE_LEVEL_HIGH>;
};
diff --git a/arch/mips/boot/dts/loongson/lsgz_1b_dev.dts b/arch/mips/boot/dts/loongson/lsgz_1b_dev.dts
index 89c3dfa574f7..a43df21f2904 100644
--- a/arch/mips/boot/dts/loongson/lsgz_1b_dev.dts
+++ b/arch/mips/boot/dts/loongson/lsgz_1b_dev.dts
@@ -28,6 +28,14 @@ xtal: xtal {
};
};

+&gmac0 {
+ status = "okay";
+};
+
+&gmac1 {
+ status = "okay";
+};
+
&uart0 {
status = "okay";
};
diff --git a/arch/mips/boot/dts/loongson/smartloong_1c.dts b/arch/mips/boot/dts/loongson/smartloong_1c.dts
index 188aab9e3685..2d8f304aa2c4 100644
--- a/arch/mips/boot/dts/loongson/smartloong_1c.dts
+++ b/arch/mips/boot/dts/loongson/smartloong_1c.dts
@@ -28,6 +28,10 @@ xtal: xtal {
};
};

+&gmac0 {
+ status = "okay";
+};
+
&uart0 {
status = "okay";
};
diff --git a/arch/mips/loongson32/common/platform.c b/arch/mips/loongson32/common/platform.c
index 8272b4133e25..817518531b9b 100644
--- a/arch/mips/loongson32/common/platform.c
+++ b/arch/mips/loongson32/common/platform.c
@@ -8,157 +8,13 @@
#include <linux/err.h>
#include <linux/mtd/partitions.h>
#include <linux/sizes.h>
-#include <linux/phy.h>
-#include <linux/stmmac.h>
#include <linux/usb/ehci_pdriver.h>

#include <platform.h>
#include <loongson1.h>
#include <dma.h>
#include <nand.h>
-
-/* Synopsys Ethernet GMAC */
-static struct stmmac_mdio_bus_data ls1x_mdio_bus_data = {
- .phy_mask = 0,
-};
-
-static struct stmmac_dma_cfg ls1x_eth_dma_cfg = {
- .pbl = 1,
-};
-
-int ls1x_eth_mux_init(struct platform_device *pdev, void *priv)
-{
- struct plat_stmmacenet_data *plat_dat = NULL;
- u32 val;
-
- val = __raw_readl(LS1X_MUX_CTRL1);
-
-#if defined(CONFIG_LOONGSON1_LS1B)
- plat_dat = dev_get_platdata(&pdev->dev);
- if (plat_dat->bus_id) {
- __raw_writel(__raw_readl(LS1X_MUX_CTRL0) | GMAC1_USE_UART1 |
- GMAC1_USE_UART0, LS1X_MUX_CTRL0);
- switch (plat_dat->phy_interface) {
- case PHY_INTERFACE_MODE_RGMII:
- val &= ~(GMAC1_USE_TXCLK | GMAC1_USE_PWM23);
- break;
- case PHY_INTERFACE_MODE_MII:
- val |= (GMAC1_USE_TXCLK | GMAC1_USE_PWM23);
- break;
- default:
- pr_err("unsupported mii mode %d\n",
- plat_dat->phy_interface);
- return -ENOTSUPP;
- }
- val &= ~GMAC1_SHUT;
- } else {
- switch (plat_dat->phy_interface) {
- case PHY_INTERFACE_MODE_RGMII:
- val &= ~(GMAC0_USE_TXCLK | GMAC0_USE_PWM01);
- break;
- case PHY_INTERFACE_MODE_MII:
- val |= (GMAC0_USE_TXCLK | GMAC0_USE_PWM01);
- break;
- default:
- pr_err("unsupported mii mode %d\n",
- plat_dat->phy_interface);
- return -ENOTSUPP;
- }
- val &= ~GMAC0_SHUT;
- }
- __raw_writel(val, LS1X_MUX_CTRL1);
-#elif defined(CONFIG_LOONGSON1_LS1C)
- plat_dat = dev_get_platdata(&pdev->dev);
-
- val &= ~PHY_INTF_SELI;
- if (plat_dat->phy_interface == PHY_INTERFACE_MODE_RMII)
- val |= 0x4 << PHY_INTF_SELI_SHIFT;
- __raw_writel(val, LS1X_MUX_CTRL1);
-
- val = __raw_readl(LS1X_MUX_CTRL0);
- __raw_writel(val & (~GMAC_SHUT), LS1X_MUX_CTRL0);
-#endif
-
- return 0;
-}
-
-static struct plat_stmmacenet_data ls1x_eth0_pdata = {
- .bus_id = 0,
- .phy_addr = -1,
-#if defined(CONFIG_LOONGSON1_LS1B)
- .phy_interface = PHY_INTERFACE_MODE_MII,
-#elif defined(CONFIG_LOONGSON1_LS1C)
- .phy_interface = PHY_INTERFACE_MODE_RMII,
-#endif
- .mdio_bus_data = &ls1x_mdio_bus_data,
- .dma_cfg = &ls1x_eth_dma_cfg,
- .has_gmac = 1,
- .tx_coe = 1,
- .rx_queues_to_use = 1,
- .tx_queues_to_use = 1,
- .init = ls1x_eth_mux_init,
-};
-
-static struct resource ls1x_eth0_resources[] = {
- [0] = {
- .start = LS1X_GMAC0_BASE,
- .end = LS1X_GMAC0_BASE + SZ_64K - 1,
- .flags = IORESOURCE_MEM,
- },
- [1] = {
- .name = "macirq",
- .start = LS1X_GMAC0_IRQ,
- .flags = IORESOURCE_IRQ,
- },
-};
-
-struct platform_device ls1x_eth0_pdev = {
- .name = "stmmaceth",
- .id = 0,
- .num_resources = ARRAY_SIZE(ls1x_eth0_resources),
- .resource = ls1x_eth0_resources,
- .dev = {
- .platform_data = &ls1x_eth0_pdata,
- },
-};
-
-#ifdef CONFIG_LOONGSON1_LS1B
-static struct plat_stmmacenet_data ls1x_eth1_pdata = {
- .bus_id = 1,
- .phy_addr = -1,
- .phy_interface = PHY_INTERFACE_MODE_MII,
- .mdio_bus_data = &ls1x_mdio_bus_data,
- .dma_cfg = &ls1x_eth_dma_cfg,
- .has_gmac = 1,
- .tx_coe = 1,
- .rx_queues_to_use = 1,
- .tx_queues_to_use = 1,
- .init = ls1x_eth_mux_init,
-};
-
-static struct resource ls1x_eth1_resources[] = {
- [0] = {
- .start = LS1X_GMAC1_BASE,
- .end = LS1X_GMAC1_BASE + SZ_64K - 1,
- .flags = IORESOURCE_MEM,
- },
- [1] = {
- .name = "macirq",
- .start = LS1X_GMAC1_IRQ,
- .flags = IORESOURCE_IRQ,
- },
-};
-
-struct platform_device ls1x_eth1_pdev = {
- .name = "stmmaceth",
- .id = 1,
- .num_resources = ARRAY_SIZE(ls1x_eth1_resources),
- .resource = ls1x_eth1_resources,
- .dev = {
- .platform_data = &ls1x_eth1_pdata,
- },
-};
-#endif /* CONFIG_LOONGSON1_LS1B */
+#include <irq.h>

/* GPIO */
static struct resource ls1x_gpio0_resources[] = {
diff --git a/arch/mips/loongson32/ls1b/board.c b/arch/mips/loongson32/ls1b/board.c
index e8290f200096..f23e4e5c96ee 100644
--- a/arch/mips/loongson32/ls1b/board.c
+++ b/arch/mips/loongson32/ls1b/board.c
@@ -34,8 +34,6 @@ static const struct gpio_led_platform_data ls1x_led_pdata __initconst = {
};

static struct platform_device *ls1b_platform_devices[] __initdata = {
- &ls1x_eth0_pdev,
- &ls1x_eth1_pdev,
&ls1x_ehci_pdev,
&ls1x_gpio0_pdev,
&ls1x_gpio1_pdev,
diff --git a/arch/mips/loongson32/ls1c/board.c b/arch/mips/loongson32/ls1c/board.c
index a7096964fb30..29bc467fd149 100644
--- a/arch/mips/loongson32/ls1c/board.c
+++ b/arch/mips/loongson32/ls1c/board.c
@@ -6,7 +6,6 @@
#include <platform.h>

static struct platform_device *ls1c_platform_devices[] __initdata = {
- &ls1x_eth0_pdev,
&ls1x_rtc_pdev,
&ls1x_wdt_pdev,
};
--
2.39.2