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Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , NXP Linux Team , Chester Lin , =?utf-8?q?Andreas_F=C3=A4rber?= , Matthias Brugger , NXP S32 Linux Team , Alexandre Torgue , Jose Abreu , Maxime Coquelin , Michael Turquette , Stephen Boyd , Richard Cochran , Simon Horman , Andrew Halaney , Bartosz Golaszewski , Johannes Zink , Shenwei Wang , "Russell King (Oracle)" , Swee Leong Ching , Giuseppe Cavallaro , netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-stm32@st-md-mailman.stormreply.com, linux-clk@vger.kernel.org Subject: [PATCH 1/3] arm64: dts: S32G3: Introduce device tree for S32G-VNP-RDB3 Date: Fri, 15 Mar 2024 23:27:47 +0100 Message-Id: <20240315222754.22366-2-wafgo01@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240315222754.22366-1-wafgo01@gmail.com> References: <20240315222754.22366-1-wafgo01@gmail.com> Precedence: bulk X-Mailing-List: linux-clk@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 This commit adds device tree support for the NXP S32G3-based S32G-VNP-RDB3 Board (Vehicle Networking Platform - Reference Design Board) [1]. The S32G3 features an 8-core ARM Cortex-A53 based SoC developed by NXP. The device tree files are derived from the official NXP downstream Linux tree [2]. This addition encompasses a limited selection of peripherals that are upstream-supported. Apart from the ARM System Modules (GIC, Generic Timer, etc.), the following IPs have been validated: UART: fsl-linflexuart SDHC: fsl-imx-esdhc Ethernet: synopsys gmac/stmac Clock settings for the chip rely on ATF Firmware [3]. Pin control integration into the device tree is pending and currently relies on Firmware/U-Boot settings [4]. These changes were validated using the latest BSP39 Firmware/U-Boot from NXP [5]. The modifications enable booting the official Ubuntu 22.04 from NXP on the RDB3 with default settings from the SD card and eMMC. [1] https://www.nxp.com/design/design-center/designs/s32g3-vehicle-networking-reference-design:S32G-VNP-RDB3 [2] https://github.com/nxp-auto-linux/linux [3] https://github.com/nxp-auto-linux/arm-trusted-firmware [4] https://github.com/nxp-auto-linux/u-boot [5] https://github.com/nxp-auto-linux/auto_yocto_bsp Signed-off-by: Wadim Mueller --- arch/arm64/boot/dts/freescale/Makefile | 1 + arch/arm64/boot/dts/freescale/s32g3.dtsi | 352 ++++++++++++++++++ .../boot/dts/freescale/s32g399a-rdb3.dts | 57 +++ .../dt-bindings/clock/nxp,s32-scmi-clock.h | 158 ++++++++ 4 files changed, 568 insertions(+) create mode 100644 arch/arm64/boot/dts/freescale/s32g3.dtsi create mode 100644 arch/arm64/boot/dts/freescale/s32g399a-rdb3.dts create mode 100644 include/dt-bindings/clock/nxp,s32-scmi-clock.h diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile index 2cb0212b63c6..e701008dbc7b 100644 --- a/arch/arm64/boot/dts/freescale/Makefile +++ b/arch/arm64/boot/dts/freescale/Makefile @@ -252,3 +252,4 @@ dtb-$(CONFIG_ARCH_MXC) += imx8mp-venice-gw74xx-rpidsi.dtb dtb-$(CONFIG_ARCH_S32) += s32g274a-evb.dtb dtb-$(CONFIG_ARCH_S32) += s32g274a-rdb2.dtb dtb-$(CONFIG_ARCH_S32) += s32v234-evb.dtb +dtb-$(CONFIG_ARCH_S32) += s32g399a-rdb3.dtb diff --git a/arch/arm64/boot/dts/freescale/s32g3.dtsi b/arch/arm64/boot/dts/freescale/s32g3.dtsi new file mode 100644 index 000000000000..481ddcfd3a6d --- /dev/null +++ b/arch/arm64/boot/dts/freescale/s32g3.dtsi @@ -0,0 +1,352 @@ +// SPDX-License-Identifier: GPL-2.0-or-later + +#include +#include +/ { + compatible = "nxp,s32g3"; + interrupt-parent = <&gic>; + #address-cells = <0x02>; + #size-cells = <0x02>; + + cpus { + #address-cells = <1>; + #size-cells = <0>; + + cpu-map { + cluster0 { + core0 { + cpu = <&cpu0>; + }; + + core1 { + cpu = <&cpu1>; + }; + + core2 { + cpu = <&cpu2>; + }; + + core3 { + cpu = <&cpu3>; + }; + }; + + cluster1 { + core0 { + cpu = <&cpu4>; + }; + + core1 { + cpu = <&cpu5>; + }; + + core2 { + cpu = <&cpu6>; + }; + + core3 { + cpu = <&cpu7>; + }; + }; + }; + + cpu0: cpu@0 { + device_type = "cpu"; + compatible = "arm,cortex-a53"; + reg = <0x0>; + enable-method = "psci"; + clocks = <&dfs S32_SCMI_CLK_A53>; + next-level-cache = <&cluster0_l2_cache>; + #cooling-cells = <2>; + }; + + cpu1: cpu@1 { + device_type = "cpu"; + compatible = "arm,cortex-a53"; + reg = <0x1>; + enable-method = "psci"; + clocks = <&dfs S32_SCMI_CLK_A53>; + next-level-cache = <&cluster0_l2_cache>; + #cooling-cells = <2>; + }; + + cpu2: cpu@2 { + device_type = "cpu"; + compatible = "arm,cortex-a53"; + reg = <0x2>; + enable-method = "psci"; + clocks = <&dfs S32_SCMI_CLK_A53>; + next-level-cache = <&cluster0_l2_cache>; + #cooling-cells = <2>; + }; + + cpu3: cpu@3 { + device_type = "cpu"; + compatible = "arm,cortex-a53"; + reg = <0x3>; + enable-method = "psci"; + clocks = <&dfs S32_SCMI_CLK_A53>; + next-level-cache = <&cluster0_l2_cache>; + #cooling-cells = <2>; + }; + + cpu4: cpu@100 { + device_type = "cpu"; + compatible = "arm,cortex-a53"; + reg = <0x100>; + enable-method = "psci"; + clocks = <&dfs S32_SCMI_CLK_A53>; + next-level-cache = <&cluster1_l2_cache>; + #cooling-cells = <2>; + }; + + cpu5: cpu@101 { + device_type = "cpu"; + compatible = "arm,cortex-a53"; + reg = <0x101>; + enable-method = "psci"; + clocks = <&dfs S32_SCMI_CLK_A53>; + next-level-cache = <&cluster1_l2_cache>; + #cooling-cells = <2>; + }; + + cpu6: cpu@102 { + device_type = "cpu"; + compatible = "arm,cortex-a53"; + reg = <0x102>; + enable-method = "psci"; + clocks = <&dfs S32_SCMI_CLK_A53>; + next-level-cache = <&cluster1_l2_cache>; + #cooling-cells = <2>; + }; + + cpu7: cpu@103 { + device_type = "cpu"; + compatible = "arm,cortex-a53"; + reg = <0x103>; + enable-method = "psci"; + clocks = <&dfs S32_SCMI_CLK_A53>; + next-level-cache = <&cluster1_l2_cache>; + #cooling-cells = <2>; + }; + + cluster0_l2_cache: l2-cache0 { + compatible = "cache"; + status = "okay"; + }; + + cluster1_l2_cache: l2-cache1 { + compatible = "cache"; + status = "okay"; + }; + }; + + pmu { + compatible = "arm,cortex-a53-pmu"; + interrupts = ; + }; + + timer { + compatible = "arm,armv8-timer"; + interrupts = , /* sec-phys */ + , /* virt */ + , /* hyp-virt */ + , /* sec-phys */ + ; /* phys */ + always-on; + }; + + reserved-memory { + #address-cells = <2>; + #size-cells = <2>; + ranges; + + scmi_tx_buf: shm@d0000000 { + compatible = "arm,scmi-shmem"; + reg = <0x0 0xd0000000 0x0 0x80>; + no-map; + }; + + scmi_rx_buf: shm@d0000080 { + compatible = "arm,scmi-shmem"; + reg = <0x0 0xd0000080 0x0 0x80>; + no-map; + }; + }; + + firmware { + scmi: scmi { + compatible = "arm,scmi-smc"; + mbox-names = "tx", "rx"; + shmem = <&scmi_tx_buf>, <&scmi_rx_buf>; + arm,smc-id = <0xc20000fe>; + #address-cells = <1>; + #size-cells = <0>; + status = "okay"; + interrupts = ; + interrupt-names = "p2a_notif"; + + dfs: protocol@13 { + reg = <0x13>; + #clock-cells = <1>; + }; + + clks: protocol@14 { + reg = <0x14>; + #clock-cells = <1>; + }; + + reset: protocol@16 { + reg = <0x16>; + #reset-cells = <1>; + }; + + pinctrl_scmi: protocol@80 { + reg = <0x80>; + #pinctrl-cells = <2>; + + status = "disabled"; + }; + }; + + psci: psci { + compatible = "arm,psci-1.0"; + method = "smc"; + }; + }; + + soc@0 { + compatible = "simple-bus"; + #address-cells = <1>; + #size-cells = <1>; + ranges = <0 0 0 0x80000000>; + + uart0: serial@401c8000 { + compatible = "nxp,s32g3-linflexuart", + "fsl,s32v234-linflexuart"; + reg = <0x401c8000 0x3000>; + interrupts = ; + status = "disabled"; + }; + + uart1: serial@401cc000 { + compatible = "nxp,s32g3-linflexuart", + "fsl,s32v234-linflexuart"; + reg = <0x401cc000 0x3000>; + interrupts = ; + status = "disabled"; + }; + + uart2: serial@402bc000 { + compatible = "nxp,s32g3-linflexuart", + "fsl,s32v234-linflexuart"; + reg = <0x402bc000 0x3000>; + interrupts = ; + status = "disabled"; + }; + + gic: interrupt-controller@50800000 { + compatible = "arm,gic-v3"; + #interrupt-cells = <3>; + interrupt-controller; + reg = <0x50800000 0x10000>, + <0x50900000 0x200000>, + <0x50400000 0x2000>, + <0x50410000 0x2000>, + <0x50420000 0x2000>; + interrupts = ; + mbi-ranges = <167 16>; + }; + + qspi: spi@40134000 { + compatible = "nxp,s32g3-qspi"; + #address-cells = <1>; + #size-cells = <0>; + reg = <0x0 0x00000000 0x0 0x20000000>, + <0x0 0x40134000 0x0 0x1000>; + reg-names = "QuadSPI-memory", "QuadSPI"; + interrupts = ; + clock-names = "qspi_en", "qspi"; + clocks = <&clks S32_SCMI_CLK_QSPI_FLASH1X>, + <&clks S32_SCMI_CLK_QSPI_FLASH1X>; + spi-max-frequency = <200000000>; + spi-num-chipselects = <2>; + status = "disabled"; + }; + + usdhc0: mmc@402f0000 { + compatible = "nxp,s32g3-usdhc", + "nxp,s32g2-usdhc"; + reg = <0x402f0000 0x1000>; + interrupts = ; + clocks = <&clks S32_SCMI_CLK_USDHC_MODULE>, + <&clks S32_SCMI_CLK_USDHC_AHB>, + <&clks S32_SCMI_CLK_USDHC_CORE>; + clock-names = "ipg", "ahb", "per"; + status = "disabled"; + }; + + gmac0: ethernet@4033c000 { + status = "disabled"; + compatible = "nxp,s32-dwmac"; + reg = <0x4033c000 0x2000>, /* gmac IP */ + <0x4007c004 0x4>; /* S32 CTRL_STS reg */ + interrupt-parent = <&gic>; + interrupts = ; + interrupt-names = "macirq"; + tx-fifo-depth = <20480>; + rx-fifo-depth = <20480>; + dma-coherent; + snps,mtl-rx-config = <&mtl_rx_setup_gmac0>; + snps,mtl-tx-config = <&mtl_tx_setup_gmac0>; + clocks = <&clks S32_SCMI_CLK_GMAC0_AXI>, + <&clks S32_SCMI_CLK_GMAC0_AXI>, + <&clks S32_SCMI_CLK_GMAC0_TX_SGMII>, + <&clks S32_SCMI_CLK_GMAC0_TX_RGMII>, + <&clks S32_SCMI_CLK_GMAC0_TX_RMII>, + <&clks S32_SCMI_CLK_GMAC0_TX_MII>, + <&clks S32_SCMI_CLK_GMAC0_RX_SGMII>, + <&clks S32_SCMI_CLK_GMAC0_RX_RGMII>, + <&clks S32_SCMI_CLK_GMAC0_RX_RMII>, + <&clks S32_SCMI_CLK_GMAC0_RX_MII>, + <&clks S32_SCMI_CLK_GMAC0_TS>; + clock-names = "stmmaceth", "pclk", + "tx_sgmii", "tx_rgmii", + "tx_rmii", "tx_mii", + "rx_sgmii", "rx_rgmii", + "rx_rmii", "rx_mii", + "ptp_ref"; + + mtl_rx_setup_gmac0: rx-queues-config { + snps,rx-queues-to-use = <5>; + #address-cells = <1>; + #size-cells = <0>; + + queue@0 {}; + queue@1 {}; + queue@2 {}; + queue@3 {}; + queue@4 {}; + }; + + mtl_tx_setup_gmac0: tx-queues-config { + snps,tx-queues-to-use = <5>; + #address-cells = <1>; + #size-cells = <0>; + + queue@0 {}; + queue@1 {}; + queue@2 {}; + queue@3 {}; + queue@4 {}; + }; + + gmac0_mdio: mdio0 { + compatible = "snps,dwmac-mdio"; + #address-cells = <1>; + #size-cells = <0>; + }; + }; + + }; +}; diff --git a/arch/arm64/boot/dts/freescale/s32g399a-rdb3.dts b/arch/arm64/boot/dts/freescale/s32g399a-rdb3.dts new file mode 100644 index 000000000000..707b503c0165 --- /dev/null +++ b/arch/arm64/boot/dts/freescale/s32g399a-rdb3.dts @@ -0,0 +1,57 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * NXP S32G3 Reference Design Board 3 (S32G-VNP-RDB3) + */ + +/dts-v1/; + +#include "s32g3.dtsi" + +/ { + model = "NXP S32G3 Reference Design Board 3 (S32G-VNP-RDB3)"; + compatible = "nxp,s32g399a-rdb3", "nxp,s32g3"; + + aliases { + serial0 = &uart0; + serial1 = &uart1; + ethernet0 = &gmac0; + reset = &reset; + }; + + chosen { + stdout-path = "serial0:115200n8"; + }; + + /* 4GiB RAM */ + memory@80000000 { + device_type = "memory"; + reg = <0x0 0x80000000 0 0x80000000>, + <0x8 0x80000000 0 0x80000000>; + }; +}; + +&gmac0 { + status = "okay"; + phy-handle = <&mdio_a_phy1>; + phy-mode = "rgmii-id"; +}; + +&gmac0_mdio { + #address-cells = <1>; + #size-cells = <0>; + mdio_a_phy1: ethernet-phy@1 { + reg = <1>; + }; +}; + +&uart0 { + status = "okay"; +}; + +&uart1 { + status = "okay"; +}; + +&usdhc0 { + status = "okay"; +}; diff --git a/include/dt-bindings/clock/nxp,s32-scmi-clock.h b/include/dt-bindings/clock/nxp,s32-scmi-clock.h new file mode 100644 index 000000000000..240022c1f109 --- /dev/null +++ b/include/dt-bindings/clock/nxp,s32-scmi-clock.h @@ -0,0 +1,158 @@ +/* SPDX-License-Identifier: BSD-3-Clause */ + +#ifndef __DT_BINDINGS_NXP_SCMI_CLOCK_S32_H +#define __DT_BINDINGS_NXP_SCMI_CLOCK_S32_H + +#define S32_SCMI_COMPLEX_CLK 0xFFFFFFFFU +#define S32_SCMI_NOT_IMPLEMENTED_CLK 0xFFFFFFFEU + +#define S32_SCMI_CLK_BASE_ID 0U +#define S32_SCMI_CLK(N) ((N) + S32_SCMI_CLK_BASE_ID) +#define S32_PLAT_SCMI_CLK(N) ((N) + S32_SCMI_PLAT_CLK_BASE_ID) + +#define S32_SCMI_CLK_VERSION_MAJOR (1) +#define S32_SCMI_CLK_VERSION_MINOR (0) + +/* A53 */ +#define S32_SCMI_CLK_A53 S32_SCMI_CLK(0) +/* SERDES */ +#define S32_SCMI_CLK_SERDES_AXI S32_SCMI_CLK(1) +#define S32_SCMI_CLK_SERDES_AUX S32_SCMI_CLK(2) +#define S32_SCMI_CLK_SERDES_APB S32_SCMI_CLK(3) +#define S32_SCMI_CLK_SERDES_REF S32_SCMI_CLK(4) +/* FTM0 */ +#define S32_SCMI_CLK_FTM0_SYS S32_SCMI_CLK(5) +#define S32_SCMI_CLK_FTM0_EXT S32_SCMI_CLK(6) +/* FTM1 */ +#define S32_SCMI_CLK_FTM1_SYS S32_SCMI_CLK(7) +#define S32_SCMI_CLK_FTM1_EXT S32_SCMI_CLK(8) +/* FlexCAN */ +#define S32_SCMI_CLK_FLEXCAN_REG S32_SCMI_CLK(9) +#define S32_SCMI_CLK_FLEXCAN_SYS S32_SCMI_CLK(10) +#define S32_SCMI_CLK_FLEXCAN_CAN S32_SCMI_CLK(11) +#define S32_SCMI_CLK_FLEXCAN_TS S32_SCMI_CLK(12) +/* LINFlexD */ +#define S32_SCMI_CLK_LINFLEX_XBAR S32_SCMI_CLK(13) +#define S32_SCMI_CLK_LINFLEX_LIN S32_SCMI_CLK(14) +#define S32_SCMI_CLK_GMAC0_TS S32_SCMI_CLK(15) +/* GMAC0 - SGMII */ +#define S32_SCMI_CLK_GMAC0_RX_SGMII S32_SCMI_CLK(16) +#define S32_SCMI_CLK_GMAC0_TX_SGMII S32_SCMI_CLK(17) +/* GMAC0 - RGMII */ +#define S32_SCMI_CLK_GMAC0_RX_RGMII S32_SCMI_CLK(18) +#define S32_SCMI_CLK_GMAC0_TX_RGMII S32_SCMI_CLK(19) +/* GMAC0 - RMII */ +#define S32_SCMI_CLK_GMAC0_RX_RMII S32_SCMI_CLK(20) +#define S32_SCMI_CLK_GMAC0_TX_RMII S32_SCMI_CLK(21) +/* GMAC0 - MII */ +#define S32_SCMI_CLK_GMAC0_RX_MII S32_SCMI_CLK(22) +#define S32_SCMI_CLK_GMAC0_TX_MII S32_SCMI_CLK(23) +#define S32_SCMI_CLK_GMAC0_AXI S32_SCMI_CLK(24) +/* SPI */ +#define S32_SCMI_CLK_SPI_REG S32_SCMI_CLK(25) +#define S32_SCMI_CLK_SPI_MODULE S32_SCMI_CLK(26) +/* QSPI */ +#define S32_SCMI_CLK_QSPI_REG S32_SCMI_CLK(27) +#define S32_SCMI_CLK_QSPI_AHB S32_SCMI_CLK(28) +#define S32_SCMI_CLK_QSPI_FLASH2X S32_SCMI_CLK(29) +#define S32_SCMI_CLK_QSPI_FLASH1X S32_SCMI_CLK(30) +/* uSDHC */ +#define S32_SCMI_CLK_USDHC_AHB S32_SCMI_CLK(31) +#define S32_SCMI_CLK_USDHC_MODULE S32_SCMI_CLK(32) +#define S32_SCMI_CLK_USDHC_CORE S32_SCMI_CLK(33) +#define S32_SCMI_CLK_USDHC_MOD32K S32_SCMI_CLK(34) +/* DDR */ +#define S32_SCMI_CLK_DDR_REG S32_SCMI_CLK(35) +#define S32_SCMI_CLK_DDR_PLL_REF S32_SCMI_CLK(36) +#define S32_SCMI_CLK_DDR_AXI S32_SCMI_CLK(37) +/* SRAM */ +#define S32_SCMI_CLK_SRAM_AXI S32_SCMI_CLK(38) +#define S32_SCMI_CLK_SRAM_REG S32_SCMI_CLK(39) +/* I2C */ +#define S32_SCMI_CLK_I2C_REG S32_SCMI_CLK(40) +#define S32_SCMI_CLK_I2C_MODULE S32_SCMI_CLK(41) +/* SIUL2 */ +#define S32_SCMI_CLK_SIUL2_REG S32_SCMI_CLK(42) +#define S32_SCMI_CLK_SIUL2_FILTER S32_SCMI_CLK(43) +/* CRC */ +#define S32_SCMI_CLK_CRC_REG S32_SCMI_CLK(44) +#define S32_SCMI_CLK_CRC_MODULE S32_SCMI_CLK(45) +/* EIM0 */ +#define S32_SCMI_CLK_EIM0_REG S32_SCMI_CLK(46) +#define S32_SCMI_CLK_EIM0_MODULE S32_SCMI_CLK(47) +/* EIM0 */ +#define S32_SCMI_CLK_EIM123_REG S32_SCMI_CLK(48) +#define S32_SCMI_CLK_EIM123_MODULE S32_SCMI_CLK(49) +/* EIM */ +#define S32_SCMI_CLK_EIM_REG S32_SCMI_CLK(50) +#define S32_SCMI_CLK_EIM_MODULE S32_SCMI_CLK(51) +/* FCCU */ +#define S32_SCMI_CLK_FCCU_MODULE S32_SCMI_CLK(52) +#define S32_SCMI_CLK_FCCU_SAFE S32_SCMI_CLK(53) +/* RTC */ +#define S32_SCMI_CLK_RTC_REG S32_SCMI_CLK(54) +#define S32_SCMI_CLK_RTC_SIRC S32_SCMI_CLK(55) +#define S32_SCMI_CLK_RTC_FIRC S32_SCMI_CLK(56) +/* SWT */ +#define S32_SCMI_CLK_SWT_MODULE S32_SCMI_CLK(57) +#define S32_SCMI_CLK_SWT_COUNTER S32_SCMI_CLK(58) +/* STM */ +#define S32_SCMI_CLK_STM_MODULE S32_SCMI_CLK(59) +#define S32_SCMI_CLK_STM_REG S32_SCMI_CLK(60) +/* PIT */ +#define S32_SCMI_CLK_PIT_MODULE S32_SCMI_CLK(61) +#define S32_SCMI_CLK_PIT_REG S32_SCMI_CLK(62) +/* eDMA */ +#define S32_SCMI_CLK_EDMA_MODULE S32_SCMI_CLK(63) +#define S32_SCMI_CLK_EDMA_AHB S32_SCMI_CLK(64) +/* ADC */ +#define S32_SCMI_CLK_SAR_ADC_BUS S32_SCMI_CLK(65) +/* CMU */ +#define S32_SCMI_CLK_CMU_MODULE S32_SCMI_CLK(66) +#define S32_SCMI_CLK_CMU_REG S32_SCMI_CLK(67) +/* TMU */ +#define S32_SCMI_CLK_TMU_MODULE S32_SCMI_CLK(68) +#define S32_SCMI_CLK_TMU_REG S32_SCMI_CLK(69) +/* FlexRay */ +#define S32_SCMI_CLK_FR_REG S32_SCMI_CLK(70) +#define S32_SCMI_CLK_FR_PE S32_SCMI_CLK(71) +/* WKPU */ +#define S32_SCMI_CLK_WKPU_MODULE S32_SCMI_CLK(72) +#define S32_SCMI_CLK_WKPU_REG S32_SCMI_CLK(73) +/* SRC */ +#define S32_SCMI_CLK_SRC_MODULE S32_SCMI_CLK(74) +#define S32_SCMI_CLK_SRC_REG S32_SCMI_CLK(75) +/* SRC-TOP */ +#define S32_SCMI_CLK_SRC_TOP_MODULE S32_SCMI_CLK(76) +#define S32_SCMI_CLK_SRC_TOP_REG S32_SCMI_CLK(77) +/* CTU */ +#define S32_SCMI_CLK_CTU_MODULE S32_SCMI_CLK(78) +#define S32_SCMI_CLK_CTU_CTU S32_SCMI_CLK(79) +/* DBG */ +#define S32_SCMI_CLK_DBG_SYS4 S32_SCMI_CLK(80) +#define S32_SCMI_CLK_DBG_SYS2 S32_SCMI_CLK(81) +/* Cortex-M7 */ +#define S32_SCMI_CLK_M7_CORE S32_SCMI_CLK(82) +/* DMAMUX */ +#define S32_SCMI_CLK_DMAMUX_MODULE S32_SCMI_CLK(83) +#define 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Wadim Mueller To: Cc: Wadim Mueller , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , NXP Linux Team , Chester Lin , =?utf-8?q?Andreas_F=C3=A4rber?= , Matthias Brugger , NXP S32 Linux Team , Alexandre Torgue , Jose Abreu , Maxime Coquelin , Michael Turquette , Stephen Boyd , Richard Cochran , Andrew Halaney , Simon Horman , Bartosz Golaszewski , Johannes Zink , Shenwei Wang , "Russell King (Oracle)" , Swee Leong Ching , Giuseppe Cavallaro , netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-stm32@st-md-mailman.stormreply.com, linux-clk@vger.kernel.org Subject: [PATCH 2/3] net: stmmac: Add NXP S32 SoC family support Date: Fri, 15 Mar 2024 23:27:48 +0100 Message-Id: <20240315222754.22366-3-wafgo01@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240315222754.22366-1-wafgo01@gmail.com> References: <20240315222754.22366-1-wafgo01@gmail.com> Precedence: bulk X-Mailing-List: linux-clk@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Add support for NXP S32 SoC family's GMAC to the stmmac network driver. This driver implementation is based on the patchset originally contributed by Chester Lin [1], which itself draws heavily from NXP's downstream implementation [2]. The patchset was never merged. The S32G2/3 SoCs feature multiple Ethernet interfaces (PFE0, PFE1, PFE2, and GMAC) which can be routed through a SerDes Subsystem, supporting various interfaces such as SGMII and RGMII. However, the current Glue Code lacks support for SerDes routing and pinctrl handling, relying solely on correct settings in U-Boot. Clock settings for this SoC are managed by the ATF Firmware. Changes made compared to [1]: Rebased onto Linux 6.8-rc7 Consolidated into a single commit Minor adjustments in naming and usage of dev_err()/dev_info() Test Environment: The driver has been successfully tested on the official S32G-VNP-RDB3 Reference Design Board from NXP, utilizing an S32G3 SoC. The firmware and U-Boot used were from the BSP39 Release. The official BSP39 Ubuntu 22.04 Release was successfully booted. A network stress test using iperf [3] was also executed without issues. [1] https://patchwork.kernel.org/project/netdevbpf/patch/20221031101052.14956-6-clin@suse.com/#25068228 [2] https://github.com/nxp-auto-linux/linux/blob/release/bsp39.0-5.15.129-rt/drivers/net/ethernet/stmicro/stmmac/dwmac-s32cc.c [3] https://linux.die.net/man/1/iperf [4] https://github.com/nxp-auto-linux/u-boot [5] https://github.com/nxp-auto-linux/arm-trusted-firmware Signed-off-by: Wadim Mueller --- drivers/net/ethernet/stmicro/stmmac/Kconfig | 12 + drivers/net/ethernet/stmicro/stmmac/Makefile | 1 + drivers/net/ethernet/stmicro/stmmac/common.h | 3 + .../net/ethernet/stmicro/stmmac/dwmac-s32.c | 313 ++++++++++++++++++ .../net/ethernet/stmicro/stmmac/dwmac4_dma.c | 9 + .../net/ethernet/stmicro/stmmac/dwmac4_dma.h | 3 + drivers/net/ethernet/stmicro/stmmac/hwif.h | 5 + .../net/ethernet/stmicro/stmmac/stmmac_main.c | 7 + include/linux/stmmac.h | 9 + 9 files changed, 362 insertions(+) create mode 100644 drivers/net/ethernet/stmicro/stmmac/dwmac-s32.c diff --git a/drivers/net/ethernet/stmicro/stmmac/Kconfig b/drivers/net/ethernet/stmicro/stmmac/Kconfig index 85dcda51df05..1cdf2da0251c 100644 --- a/drivers/net/ethernet/stmicro/stmmac/Kconfig +++ b/drivers/net/ethernet/stmicro/stmmac/Kconfig @@ -142,6 +142,18 @@ config DWMAC_ROCKCHIP This selects the Rockchip RK3288 SoC glue layer support for the stmmac device driver. +config DWMAC_S32 + tristate "NXP S32 series GMAC support" + default ARCH_S32 + depends on OF && (ARCH_S32 || COMPILE_TEST) + select PHYLINK + help + Support for ethernet controller on NXP S32 series SOCs. + + This selects NXP SoC glue layer support for the stmmac + device driver. This driver is used for the S32 series + SOCs GMAC ethernet controller. + config DWMAC_SOCFPGA tristate "SOCFPGA dwmac support" default ARCH_INTEL_SOCFPGA diff --git a/drivers/net/ethernet/stmicro/stmmac/Makefile b/drivers/net/ethernet/stmicro/stmmac/Makefile index 26cad4344701..c48ff95ed972 100644 --- a/drivers/net/ethernet/stmicro/stmmac/Makefile +++ b/drivers/net/ethernet/stmicro/stmmac/Makefile @@ -34,6 +34,7 @@ obj-$(CONFIG_DWMAC_GENERIC) += dwmac-generic.o obj-$(CONFIG_DWMAC_IMX8) += dwmac-imx.o obj-$(CONFIG_DWMAC_TEGRA) += dwmac-tegra.o obj-$(CONFIG_DWMAC_VISCONTI) += dwmac-visconti.o +obj-$(CONFIG_DWMAC_S32) += dwmac-s32.o stmmac-platform-objs:= stmmac_platform.o dwmac-altr-socfpga-objs := dwmac-socfpga.o diff --git a/drivers/net/ethernet/stmicro/stmmac/common.h b/drivers/net/ethernet/stmicro/stmmac/common.h index 5ba606a596e7..e5e23e8c07e1 100644 --- a/drivers/net/ethernet/stmicro/stmmac/common.h +++ b/drivers/net/ethernet/stmicro/stmmac/common.h @@ -254,6 +254,9 @@ struct stmmac_safety_stats { #define CSR_F_150M 150000000 #define CSR_F_250M 250000000 #define CSR_F_300M 300000000 +#define CSR_F_500M 500000000 +#define CSR_F_800M 800000000 + #define MAC_CSR_H_FRQ_MASK 0x20 diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-s32.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-s32.c new file mode 100644 index 000000000000..1920eeed2269 --- /dev/null +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-s32.c @@ -0,0 +1,313 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * DWMAC Specific Glue layer for NXP S32 SoCs + * + * Copyright (C) 2019-2022 NXP + * Copyright (C) 2022 SUSE LLC + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "stmmac_platform.h" + +#define GMAC_TX_RATE_125M 125000000 /* 125MHz */ +#define GMAC_TX_RATE_25M 25000000 /* 25MHz */ +#define GMAC_TX_RATE_2M5 2500000 /* 2.5MHz */ + +/* S32 SRC register for phyif selection */ +#define PHY_INTF_SEL_MII 0x00 +#define PHY_INTF_SEL_SGMII 0x01 +#define PHY_INTF_SEL_RGMII 0x02 +#define PHY_INTF_SEL_RMII 0x08 + +/* AXI4 ACE control settings */ +#define ACE_DOMAIN_SIGNAL 0x2 +#define ACE_CACHE_SIGNAL 0xf +#define ACE_CONTROL_SIGNALS ((ACE_DOMAIN_SIGNAL << 4) | ACE_CACHE_SIGNAL) +#define ACE_PROTECTION 0x2 + +struct s32_priv_data { + void __iomem *ctrl_sts; + struct device *dev; + phy_interface_t intf_mode; + struct clk *tx_clk; + struct clk *rx_clk; +}; + +static int s32_gmac_init(struct platform_device *pdev, void *priv) +{ + struct s32_priv_data *gmac = priv; + u32 intf_sel; + int ret; + + if (gmac->tx_clk) { + ret = clk_prepare_enable(gmac->tx_clk); + if (ret) { + dev_err(&pdev->dev, "Can't set tx clock\n"); + return ret; + } + } + + if (gmac->rx_clk) { + ret = clk_prepare_enable(gmac->rx_clk); + if (ret) { + dev_err(&pdev->dev, "Can't set rx clock\n"); + return ret; + } + } + + /* set interface mode */ + if (gmac->ctrl_sts) { + switch (gmac->intf_mode) { + default: + dev_info( + &pdev->dev, + "unsupported mode %u, set the default phy mode.\n", + gmac->intf_mode); + fallthrough; + case PHY_INTERFACE_MODE_SGMII: + dev_info(&pdev->dev, "phy mode set to SGMII\n"); + intf_sel = PHY_INTF_SEL_SGMII; + break; + case PHY_INTERFACE_MODE_RGMII: + case PHY_INTERFACE_MODE_RGMII_ID: + case PHY_INTERFACE_MODE_RGMII_TXID: + case PHY_INTERFACE_MODE_RGMII_RXID: + dev_info(&pdev->dev, "phy mode set to RGMII\n"); + intf_sel = PHY_INTF_SEL_RGMII; + break; + case PHY_INTERFACE_MODE_RMII: + dev_info(&pdev->dev, "phy mode set to RMII\n"); + intf_sel = PHY_INTF_SEL_RMII; + break; + case PHY_INTERFACE_MODE_MII: + dev_info(&pdev->dev, "phy mode set to MII\n"); + intf_sel = PHY_INTF_SEL_MII; + break; + } + + writel(intf_sel, gmac->ctrl_sts); + } + + return 0; +} + +static void s32_gmac_exit(struct platform_device *pdev, void *priv) +{ + struct s32_priv_data *gmac = priv; + + if (gmac->tx_clk) + clk_disable_unprepare(gmac->tx_clk); + + if (gmac->rx_clk) + clk_disable_unprepare(gmac->rx_clk); +} + +static void s32_fix_speed(void *priv, unsigned int speed, unsigned int mode) +{ + struct s32_priv_data *gmac = priv; + + if (!gmac->tx_clk || !gmac->rx_clk) + return; + + /* SGMII mode doesn't support the clock reconfiguration */ + if (gmac->intf_mode == PHY_INTERFACE_MODE_SGMII) + return; + + switch (speed) { + case SPEED_1000: + dev_info(gmac->dev, "Set TX clock to 125M\n"); + clk_set_rate(gmac->tx_clk, GMAC_TX_RATE_125M); + break; + case SPEED_100: + dev_info(gmac->dev, "Set TX clock to 25M\n"); + clk_set_rate(gmac->tx_clk, GMAC_TX_RATE_25M); + break; + case SPEED_10: + dev_info(gmac->dev, "Set TX clock to 2.5M\n"); + clk_set_rate(gmac->tx_clk, GMAC_TX_RATE_2M5); + break; + default: + dev_err(gmac->dev, "Unsupported/Invalid speed: %d\n", speed); + return; + } +} + +static int s32_config_cache_coherency(struct platform_device *pdev, + struct plat_stmmacenet_data *plat_dat) +{ + plat_dat->axi4_ace_ctrl = devm_kzalloc( + &pdev->dev, sizeof(struct stmmac_axi4_ace_ctrl), GFP_KERNEL); + + if (!plat_dat->axi4_ace_ctrl) + return -ENOMEM; + + plat_dat->axi4_ace_ctrl->tx_ar_reg = (ACE_CONTROL_SIGNALS << 16) | + (ACE_CONTROL_SIGNALS << 8) | + ACE_CONTROL_SIGNALS; + + plat_dat->axi4_ace_ctrl->rx_aw_reg = + (ACE_CONTROL_SIGNALS << 24) | (ACE_CONTROL_SIGNALS << 16) | + (ACE_CONTROL_SIGNALS << 8) | ACE_CONTROL_SIGNALS; + + plat_dat->axi4_ace_ctrl->txrx_awar_reg = + (ACE_PROTECTION << 20) | (ACE_PROTECTION << 16) | + (ACE_CONTROL_SIGNALS << 8) | ACE_CONTROL_SIGNALS; + + return 0; +} + +static int s32_dwmac_probe(struct platform_device *pdev) +{ + struct plat_stmmacenet_data *plat_dat; + struct stmmac_resources stmmac_res; + struct s32_priv_data *gmac; + struct resource *res; + const char *tx_clk, *rx_clk; + int ret; + + ret = stmmac_get_platform_resources(pdev, &stmmac_res); + if (ret) + return ret; + + gmac = devm_kzalloc(&pdev->dev, sizeof(*gmac), GFP_KERNEL); + if (!gmac) + return PTR_ERR(gmac); + + gmac->dev = &pdev->dev; + + /* S32G control reg */ + res = platform_get_resource(pdev, IORESOURCE_MEM, 1); + gmac->ctrl_sts = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR_OR_NULL(gmac->ctrl_sts)) { + dev_err(&pdev->dev, "S32G config region is missing\n"); + return PTR_ERR(gmac->ctrl_sts); + } + + plat_dat = devm_stmmac_probe_config_dt(pdev, stmmac_res.mac); + if (IS_ERR(plat_dat)) + return PTR_ERR(plat_dat); + + plat_dat->bsp_priv = gmac; + + switch (plat_dat->phy_interface) { + case PHY_INTERFACE_MODE_SGMII: + tx_clk = "tx_sgmii"; + rx_clk = "rx_sgmii"; + break; + case PHY_INTERFACE_MODE_RGMII: + case PHY_INTERFACE_MODE_RGMII_ID: + case PHY_INTERFACE_MODE_RGMII_TXID: + case PHY_INTERFACE_MODE_RGMII_RXID: + tx_clk = "tx_rgmii"; + rx_clk = "rx_rgmii"; + break; + case PHY_INTERFACE_MODE_RMII: + tx_clk = "tx_rmii"; + rx_clk = "rx_rmii"; + break; + case PHY_INTERFACE_MODE_MII: + tx_clk = "tx_mii"; + rx_clk = "rx_mii"; + break; + default: + dev_err(&pdev->dev, "Not supported phy interface mode: [%s]\n", + phy_modes(plat_dat->phy_interface)); + return -EINVAL; + }; + + gmac->intf_mode = plat_dat->phy_interface; + + /* DMA cache coherency settings */ + if (of_dma_is_coherent(pdev->dev.of_node)) { + ret = s32_config_cache_coherency(pdev, plat_dat); + if (ret) + return ret; + } + + /* tx clock */ + gmac->tx_clk = devm_clk_get(&pdev->dev, tx_clk); + if (IS_ERR(gmac->tx_clk)) { + dev_info(&pdev->dev, "tx clock not found\n"); + gmac->tx_clk = NULL; + } + + /* rx clock */ + gmac->rx_clk = devm_clk_get(&pdev->dev, rx_clk); + if (IS_ERR(gmac->rx_clk)) { + dev_info(&pdev->dev, "rx clock not found\n"); + gmac->rx_clk = NULL; + } + + ret = s32_gmac_init(pdev, gmac); + if (ret) + return ret; + + /* core feature set */ + plat_dat->has_gmac4 = true; + plat_dat->pmt = 1; + + plat_dat->init = s32_gmac_init; + plat_dat->exit = s32_gmac_exit; + plat_dat->fix_mac_speed = s32_fix_speed; + + /* safety feature config */ + plat_dat->safety_feat_cfg = devm_kzalloc( + &pdev->dev, sizeof(*plat_dat->safety_feat_cfg), GFP_KERNEL); + + if (!plat_dat->safety_feat_cfg) { + dev_err(&pdev->dev, "allocate safety_feat_cfg failed\n"); + goto err_gmac_exit; + } + + plat_dat->safety_feat_cfg->tsoee = 1; + plat_dat->safety_feat_cfg->mrxpee = 1; + plat_dat->safety_feat_cfg->mestee = 1; + plat_dat->safety_feat_cfg->mrxee = 1; + plat_dat->safety_feat_cfg->mtxee = 1; + plat_dat->safety_feat_cfg->epsi = 1; + plat_dat->safety_feat_cfg->edpp = 1; + plat_dat->safety_feat_cfg->prtyen = 1; + plat_dat->safety_feat_cfg->tmouten = 1; + + ret = stmmac_dvr_probe(&pdev->dev, plat_dat, &stmmac_res); + if (ret) + goto err_gmac_exit; + + return 0; + +err_gmac_exit: + s32_gmac_exit(pdev, plat_dat->bsp_priv); + return ret; +} + +static const struct of_device_id s32_dwmac_match[] = { + { .compatible = "nxp,s32-dwmac" }, + {} +}; +MODULE_DEVICE_TABLE(of, s32_dwmac_match); + +static struct platform_driver s32_dwmac_driver = { + .probe = s32_dwmac_probe, + .remove_new = stmmac_pltfr_remove, + .driver = { + .name = "s32-dwmac", + .pm = &stmmac_pltfr_pm_ops, + .of_match_table = s32_dwmac_match, + }, +}; +module_platform_driver(s32_dwmac_driver); + +MODULE_AUTHOR("Jan Petrous "); +MODULE_DESCRIPTION("NXP S32 GMAC driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.c b/drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.c index 84d3a8551b03..edb559c36509 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.c @@ -556,6 +556,14 @@ static int dwmac4_enable_tbs(struct stmmac_priv *priv, void __iomem *ioaddr, return 0; } +static void dwmac4_set_axi4_cc(struct stmmac_priv *priv, void __iomem *ioaddr, + struct stmmac_axi4_ace_ctrl *acecfg) +{ + writel(acecfg->tx_ar_reg, ioaddr + DMA_AXI4_TX_AR_ACE_CONTROL); + writel(acecfg->rx_aw_reg, ioaddr + DMA_AXI4_RX_AW_ACE_CONTROL); + writel(acecfg->txrx_awar_reg, ioaddr + DMA_AXI4_TXRX_AWAR_ACE_CONTROL); +} + const struct stmmac_dma_ops dwmac4_dma_ops = { .reset = dwmac4_dma_reset, .init = dwmac4_dma_init, @@ -608,6 +616,7 @@ const struct stmmac_dma_ops dwmac410_dma_ops = { .set_tx_ring_len = dwmac4_set_tx_ring_len, .set_rx_tail_ptr = dwmac4_set_rx_tail_ptr, .set_tx_tail_ptr = dwmac4_set_tx_tail_ptr, + .set_axi4_cc = dwmac4_set_axi4_cc, .enable_tso = dwmac4_enable_tso, .qmode = dwmac4_qmode, .set_bfsize = dwmac4_set_bfsize, diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.h b/drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.h index 358e7dcb6a9a..7195c643774f 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.h +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.h @@ -22,6 +22,9 @@ #define DMA_DEBUG_STATUS_1 0x00001010 #define DMA_DEBUG_STATUS_2 0x00001014 #define DMA_AXI_BUS_MODE 0x00001028 +#define DMA_AXI4_TX_AR_ACE_CONTROL 0x00001020 +#define DMA_AXI4_RX_AW_ACE_CONTROL 0x00001024 +#define DMA_AXI4_TXRX_AWAR_ACE_CONTROL 0x00001028 #define DMA_TBS_CTRL 0x00001050 /* DMA Bus Mode bitmap */ diff --git a/drivers/net/ethernet/stmicro/stmmac/hwif.h b/drivers/net/ethernet/stmicro/stmmac/hwif.h index 7be04b54738b..6ea2d8f562d0 100644 --- a/drivers/net/ethernet/stmicro/stmmac/hwif.h +++ b/drivers/net/ethernet/stmicro/stmmac/hwif.h @@ -227,6 +227,9 @@ struct stmmac_dma_ops { u32 tail_ptr, u32 chan); void (*set_tx_tail_ptr)(struct stmmac_priv *priv, void __iomem *ioaddr, u32 tail_ptr, u32 chan); + /* Configure AXI4 cache coherency for Tx and Rx DMA channels */ + void (*set_axi4_cc)(struct stmmac_priv *priv, void __iomem *ioaddr, + struct stmmac_axi4_ace_ctrl *acecfg); void (*enable_tso)(struct stmmac_priv *priv, void __iomem *ioaddr, bool en, u32 chan); void (*qmode)(struct stmmac_priv *priv, void __iomem *ioaddr, @@ -285,6 +288,8 @@ struct stmmac_dma_ops { stmmac_do_void_callback(__priv, dma, set_rx_tail_ptr, __priv, __args) #define stmmac_set_tx_tail_ptr(__priv, __args...) \ stmmac_do_void_callback(__priv, dma, set_tx_tail_ptr, __priv, __args) +#define stmmac_set_axi4_cc(__priv, __args...) \ + stmmac_do_void_callback(__priv, dma, set_axi4_cc, __priv, __args) #define stmmac_enable_tso(__priv, __args...) \ stmmac_do_void_callback(__priv, dma, enable_tso, __priv, __args) #define stmmac_dma_qmode(__priv, __args...) \ diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index 7c6aef033a45..b7b4d7dd1149 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -324,6 +324,10 @@ static void stmmac_clk_csr_set(struct stmmac_priv *priv) priv->clk_csr = STMMAC_CSR_150_250M; else if ((clk_rate >= CSR_F_250M) && (clk_rate <= CSR_F_300M)) priv->clk_csr = STMMAC_CSR_250_300M; + else if ((clk_rate >= CSR_F_300M) && (clk_rate < CSR_F_500M)) + priv->clk_csr = STMMAC_CSR_300_500M; + else if ((clk_rate >= CSR_F_500M) && (clk_rate < CSR_F_800M)) + priv->clk_csr = STMMAC_CSR_500_800M; } if (priv->plat->flags & STMMAC_FLAG_HAS_SUN8I) { @@ -3030,6 +3034,9 @@ static int stmmac_init_dma_engine(struct stmmac_priv *priv) if (priv->plat->axi) stmmac_axi(priv, priv->ioaddr, priv->plat->axi); + if (priv->plat->axi4_ace_ctrl) + stmmac_set_axi4_cc(priv, priv->ioaddr, priv->plat->axi4_ace_ctrl); + /* DMA CSR Channel configuration */ for (chan = 0; chan < dma_csr_ch; chan++) { stmmac_init_chan(priv, priv->ioaddr, priv->plat->dma_cfg, chan); diff --git a/include/linux/stmmac.h b/include/linux/stmmac.h index dee5ad6e48c5..a69ac8b9274e 100644 --- a/include/linux/stmmac.h +++ b/include/linux/stmmac.h @@ -34,6 +34,8 @@ #define STMMAC_CSR_35_60M 0x3 /* MDC = clk_scr_i/26 */ #define STMMAC_CSR_150_250M 0x4 /* MDC = clk_scr_i/102 */ #define STMMAC_CSR_250_300M 0x5 /* MDC = clk_scr_i/122 */ +#define STMMAC_CSR_300_500M 0x6 /* MDC = clk_scr_i/204 */ +#define STMMAC_CSR_500_800M 0x7 /* MDC = clk_scr_i/324 */ /* MTL algorithms identifiers */ #define MTL_TX_ALGORITHM_WRR 0x0 @@ -115,6 +117,12 @@ struct stmmac_axi { bool axi_rb; 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Fri, 15 Mar 2024 15:28:52 -0700 (PDT) Received: from bhlegrsu.conti.de ([2a02:908:2525:6ea0::f845]) by smtp.googlemail.com with ESMTPSA id el9-20020a056402360900b005684173e413sm2039833edb.72.2024.03.15.15.28.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 15 Mar 2024 15:28:52 -0700 (PDT) From: Wadim Mueller To: Cc: Wadim Mueller , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , NXP Linux Team , Chester Lin , =?utf-8?q?Andreas_F=C3=A4rber?= , Matthias Brugger , NXP S32 Linux Team , Alexandre Torgue , Jose Abreu , Maxime Coquelin , Michael Turquette , Stephen Boyd , Richard Cochran , Andrew Halaney , Simon Horman , Bartosz Golaszewski , Johannes Zink , Shenwei Wang , "Russell King (Oracle)" , Swee Leong Ching , Giuseppe Cavallaro , netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-stm32@st-md-mailman.stormreply.com, linux-clk@vger.kernel.org Subject: [PATCH 3/3] dt-bindings: net: add schema for NXP S32 dwmac glue driver Date: Fri, 15 Mar 2024 23:27:49 +0100 Message-Id: <20240315222754.22366-4-wafgo01@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240315222754.22366-1-wafgo01@gmail.com> References: <20240315222754.22366-1-wafgo01@gmail.com> Precedence: bulk X-Mailing-List: linux-clk@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Add DT binding schema documentation for the NXP S32 dwmac glue driver. This documentation is based on the patchset originally provided by Chester Lin [1]. This commit is a re-send of [2] and [3]. [1] https://patchwork.kernel.org/project/netdevbpf/patch/20221031101052.14956-6-clin@suse.com/#25068228 [2] https://lore.kernel.org/lkml/20221031101052.14956-1-clin@suse.com/T/#me96c28bd0536de276dee941469ea084d51b42244 [3] https://lore.kernel.org/lkml/20221031101052.14956-1-clin@suse.com/T/#m887a1b34e612f8dc0d5b718e4d6834c083f1e245 Signed-off-by: Wadim Mueller --- .../bindings/net/nxp,s32-dwmac.yaml | 130 ++++++++++++++++++ .../devicetree/bindings/net/snps,dwmac.yaml | 5 +- 2 files changed, 133 insertions(+), 2 deletions(-) create mode 100644 Documentation/devicetree/bindings/net/nxp,s32-dwmac.yaml diff --git a/Documentation/devicetree/bindings/net/nxp,s32-dwmac.yaml b/Documentation/devicetree/bindings/net/nxp,s32-dwmac.yaml new file mode 100644 index 000000000000..0fbca6ce7d60 --- /dev/null +++ b/Documentation/devicetree/bindings/net/nxp,s32-dwmac.yaml @@ -0,0 +1,130 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: "http://devicetree.org/schemas/net/nxp,s32-dwmac.yaml#" +$schema: "http://devicetree.org/meta-schemas/core.yaml#" + +title: NXP S32 DWMAC Ethernet controller + +select: + properties: + compatible: + contains: + enum: + - nxp,s32-dwmac + required: + - compatible + +allOf: + - $ref: "snps,dwmac.yaml#" + +properties: + compatible: + contains: + enum: + - nxp,s32-dwmac + + reg: + items: + - description: Main GMAC registers + - description: S32 MAC control registers + + dma-coherent: + description: + Declares GMAC device as DMA coherent + + clocks: + items: + - description: Main GMAC clock + - description: Peripheral registers clock + - description: Transmit SGMII clock + - description: Transmit RGMII clock + - description: Transmit RMII clock + - description: Transmit MII clock + - description: Receive SGMII clock + - description: Receive RGMII clock + - description: Receive RMII clock + - description: Receive MII clock + - description: + PTP reference clock. This clock is used for programming the + Timestamp Addend Register. If not passed then the system + clock will be used. + + clock-names: + items: + - const: stmmaceth + - const: pclk + - const: tx_sgmii + - const: tx_rgmii + - const: tx_rmii + - const: tx_mii + - const: rx_sgmii + - const: rx_rgmii + - const: rx_rmii + - const: rx_mii + - const: ptp_ref + + tx-fifo-depth: + const: 20480 + + rx-fifo-depth: + const: 20480 + +required: + - compatible + - reg + - tx-fifo-depth + - rx-fifo-depth + - clocks + - clock-names + +additionalProperties: true + +examples: + - | + #include + #include + #include + + soc { + #address-cells = <1>; + #size-cells = <1>; + + gmac0: ethernet@4033c000 { + compatible = "nxp,s32-dwmac"; + reg = <0x4033c000 0x2000>, /* gmac IP */ + <0x4007C004 0x4>; /* S32 CTRL_STS reg */ + interrupt-parent = <&gic>; + interrupts = ; + interrupt-names = "macirq"; + phy-mode = "rgmii-id"; + tx-fifo-depth = <20480>; + rx-fifo-depth = <20480>; + dma-coherent; + clocks = <&clks S32_SCMI_CLK_GMAC0_AXI>, + <&clks S32_SCMI_CLK_GMAC0_AXI>, + <&clks S32_SCMI_CLK_GMAC0_TX_SGMII>, + <&clks S32_SCMI_CLK_GMAC0_TX_RGMII>, + <&clks S32_SCMI_CLK_GMAC0_TX_RMII>, + <&clks S32_SCMI_CLK_GMAC0_TX_MII>, + <&clks S32_SCMI_CLK_GMAC0_RX_SGMII>, + <&clks S32_SCMI_CLK_GMAC0_RX_RGMII>, + <&clks S32_SCMI_CLK_GMAC0_RX_RMII>, + <&clks S32_SCMI_CLK_GMAC0_RX_MII>, + <&clks S32_SCMI_CLK_GMAC0_TS>; + clock-names = "stmmaceth", "pclk", + "tx_sgmii", "tx_rgmii", "tx_rmii", "tx_mii", + "rx_sgmii", "rx_rgmii", "rx_rmii", "rx_mii", + "ptp_ref"; + + gmac0_mdio: mdio { + #address-cells = <1>; + #size-cells = <0>; + compatible = "snps,dwmac-mdio"; + + ethernet-phy@1 { + reg = <0x01>; + }; + }; + }; + }; diff --git a/Documentation/devicetree/bindings/net/snps,dwmac.yaml b/Documentation/devicetree/bindings/net/snps,dwmac.yaml index 5c2769dc689a..e5bf61347b66 100644 --- a/Documentation/devicetree/bindings/net/snps,dwmac.yaml +++ b/Documentation/devicetree/bindings/net/snps,dwmac.yaml @@ -66,6 +66,7 @@ properties: - ingenic,x2000-mac - loongson,ls2k-dwmac - loongson,ls7a-dwmac + - nxp,s32-dwmac - qcom,qcs404-ethqos - qcom,sa8775p-ethqos - qcom,sc8280xp-ethqos @@ -117,7 +118,7 @@ properties: clocks: minItems: 1 - maxItems: 8 + maxItems: 11 additionalItems: true items: - description: GMAC main clock @@ -129,7 +130,7 @@ properties: clock-names: minItems: 1 - maxItems: 8 + maxItems: 11 additionalItems: true contains: enum: