Re: [PATCH v4 11/14] riscv: dts: microchip: refactor icicle kit device tree

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On 17/01/2022 11:07, conor.dooley@xxxxxxxxxxxxx wrote:
> From: Conor Dooley <conor.dooley@xxxxxxxxxxxxx>
> 
> Assorted minor changes to the MPFS/Icicle kit device tree:
> 
> - rename serial to mmuart to match microchip documentation
> - move phy0 inside mac1 node to match phy configuration
> - add labels where missing (cpus, cache controller)
> - add missing address cells & interrupts to MACs
> 
> Signed-off-by: Conor Dooley <conor.dooley@xxxxxxxxxxxxx>
> ---
>   .../microchip/microchip-mpfs-icicle-kit.dts   |  37 ++---
>   .../boot/dts/microchip/microchip-mpfs.dtsi    |  65 +++++----
>   arch/riscv/configs/icicle_kit_defconfig       | 134
last time i checked this was not a device tree change.
what a mess i made of v3...
++++++++++++++++++
>   3 files changed, 186 insertions(+), 50 deletions(-)
>   create mode 100644 arch/riscv/configs/icicle_kit_defconfig
> 
> diff --git a/arch/riscv/boot/dts/microchip/microchip-mpfs-icicle-kit.dts b/arch/riscv/boot/dts/microchip/microchip-mpfs-icicle-kit.dts
> index ab803f71626a..c51bd7cf500f 100644
> --- a/arch/riscv/boot/dts/microchip/microchip-mpfs-icicle-kit.dts
> +++ b/arch/riscv/boot/dts/microchip/microchip-mpfs-icicle-kit.dts
> @@ -1,5 +1,5 @@
>   // SPDX-License-Identifier: (GPL-2.0 OR MIT)
> -/* Copyright (c) 2020 Microchip Technology Inc */
> +/* Copyright (c) 2020-2021 Microchip Technology Inc */
>   
>   /dts-v1/;
>   
> @@ -13,11 +13,11 @@ / {
>   	compatible = "microchip,mpfs-icicle-kit", "microchip,mpfs";
>   
>   	aliases {
> -		ethernet0 = &emac1;
> -		serial0 = &serial0;
> -		serial1 = &serial1;
> -		serial2 = &serial2;
> -		serial3 = &serial3;
> +		ethernet0 = &mac1;
> +		serial0 = &mmuart0;
> +		serial1 = &mmuart1;
> +		serial2 = &mmuart2;
> +		serial3 = &mmuart3;
>   	};
>   
>   	chosen {
> @@ -39,19 +39,19 @@ &refclk {
>   	clock-frequency = <600000000>;
>   };
>   
> -&serial0 {
> +&mmuart0 {
>   	status = "okay";
>   };
>   
> -&serial1 {
> +&mmuart1 {
>   	status = "okay";
>   };
>   
> -&serial2 {
> +&mmuart2 {
>   	status = "okay";
>   };
>   
> -&serial3 {
> +&mmuart3 {
>   	status = "okay";
>   };
>   
> @@ -61,7 +61,10 @@ &mmc {
>   	bus-width = <4>;
>   	disable-wp;
>   	cap-sd-highspeed;
> +	cap-mmc-highspeed;
>   	card-detect-delay = <200>;
> +	mmc-ddr-1_8v;
> +	mmc-hs200-1_8v;
>   	sd-uhs-sdr12;
>   	sd-uhs-sdr25;
>   	sd-uhs-sdr50;
> @@ -72,22 +75,22 @@ &i2c2 {
>   	status = "okay";
>   };
>   
> -&emac0 {
> +&mac0 {
>   	phy-mode = "sgmii";
>   	phy-handle = <&phy0>;
> -	phy0: ethernet-phy@8 {
> -		reg = <8>;
> -		ti,fifo-depth = <0x01>;
> -	};
>   };
>   
> -&emac1 {
> +&mac1 {
>   	status = "okay";
>   	phy-mode = "sgmii";
>   	phy-handle = <&phy1>;
>   	phy1: ethernet-phy@9 {
>   		reg = <9>;
> -		ti,fifo-depth = <0x01>;
> +		ti,fifo-depth = <0x1>;
> +	};
> +	phy0: ethernet-phy@8 {
> +		reg = <8>;
> +		ti,fifo-depth = <0x1>;
>   	};
>   };
>   
> diff --git a/arch/riscv/boot/dts/microchip/microchip-mpfs.dtsi b/arch/riscv/boot/dts/microchip/microchip-mpfs.dtsi
> index c7d73756c9b8..62bd00092bcc 100644
> --- a/arch/riscv/boot/dts/microchip/microchip-mpfs.dtsi
> +++ b/arch/riscv/boot/dts/microchip/microchip-mpfs.dtsi
> @@ -1,5 +1,5 @@
>   // SPDX-License-Identifier: (GPL-2.0 OR MIT)
> -/* Copyright (c) 2020 Microchip Technology Inc */
> +/* Copyright (c) 2020-2021 Microchip Technology Inc */
>   
>   /dts-v1/;
>   #include "dt-bindings/clock/microchip,mpfs-clock.h"
> @@ -15,7 +15,7 @@ cpus {
>   		#address-cells = <1>;
>   		#size-cells = <0>;
>   
> -		cpu@0 {
> +		cpu0: cpu@0 {
>   			compatible = "sifive,e51", "sifive,rocket0", "riscv";
>   			device_type = "cpu";
>   			i-cache-block-size = <64>;
> @@ -33,7 +33,7 @@ cpu0_intc: interrupt-controller {
>   			};
>   		};
>   
> -		cpu@1 {
> +		cpu1: cpu@1 {
>   			compatible = "sifive,u54-mc", "sifive,rocket0", "riscv";
>   			d-cache-block-size = <64>;
>   			d-cache-sets = <64>;
> @@ -60,7 +60,7 @@ cpu1_intc: interrupt-controller {
>   			};
>   		};
>   
> -		cpu@2 {
> +		cpu2: cpu@2 {
>   			compatible = "sifive,u54-mc", "sifive,rocket0", "riscv";
>   			d-cache-block-size = <64>;
>   			d-cache-sets = <64>;
> @@ -87,7 +87,7 @@ cpu2_intc: interrupt-controller {
>   			};
>   		};
>   
> -		cpu@3 {
> +		cpu3: cpu@3 {
>   			compatible = "sifive,u54-mc", "sifive,rocket0", "riscv";
>   			d-cache-block-size = <64>;
>   			d-cache-sets = <64>;
> @@ -114,7 +114,7 @@ cpu3_intc: interrupt-controller {
>   			};
>   		};
>   
> -		cpu@4 {
> +		cpu4: cpu@4 {
>   			compatible = "sifive,u54-mc", "sifive,rocket0", "riscv";
>   			d-cache-block-size = <64>;
>   			d-cache-sets = <64>;
> @@ -152,8 +152,9 @@ soc {
>   		compatible = "simple-bus";
>   		ranges;
>   
> -		cache-controller@2010000 {
> +		cctrllr: cache-controller@2010000 {
>   			compatible = "sifive,fu540-c000-ccache", "cache";
> +			reg = <0x0 0x2010000 0x0 0x1000>;
>   			cache-block-size = <64>;
>   			cache-level = <2>;
>   			cache-sets = <1024>;
> @@ -161,10 +162,9 @@ cache-controller@2010000 {
>   			cache-unified;
>   			interrupt-parent = <&plic>;
>   			interrupts = <1>, <2>, <3>;
> -			reg = <0x0 0x2010000 0x0 0x1000>;
>   		};
>   
> -		clint@2000000 {
> +		clint: clint@2000000 {
>   			compatible = "sifive,fu540-c000-clint", "sifive,clint0";
>   			reg = <0x0 0x2000000 0x0 0xC000>;
>   			interrupts-extended = <&cpu0_intc 3>, <&cpu0_intc 7>,
> @@ -174,6 +174,15 @@ clint@2000000 {
>   					      <&cpu4_intc 3>, <&cpu4_intc 7>;
>   		};
>   
> +		dma@3000000 {
> +			compatible = "sifive,fu540-c000-pdma";
> +			reg = <0x0 0x3000000 0x0 0x8000>;
> +			interrupt-parent = <&plic>;
> +			interrupts = <23>, <24>, <25>, <26>, <27>, <28>, <29>,
> +				     <30>;
> +			#dma-cells = <1>;
> +		};
> +
>   		plic: interrupt-controller@c000000 {
>   			compatible = "sifive,fu540-c000-plic", "sifive,plic-1.0.0";
>   			reg = <0x0 0xc000000 0x0 0x4000000>;
> @@ -188,15 +197,6 @@ plic: interrupt-controller@c000000 {
>   			riscv,ndev = <186>;
>   		};
>   
> -		dma@3000000 {
> -			compatible = "sifive,fu540-c000-pdma";
> -			reg = <0x0 0x3000000 0x0 0x8000>;
> -			interrupt-parent = <&plic>;
> -			interrupts = <23>, <24>, <25>, <26>, <27>, <28>, <29>,
> -				     <30>;
> -			#dma-cells = <1>;
> -		};
> -
>   		clkcfg: clkcfg@20002000 {
>   			compatible = "microchip,mpfs-clkcfg";
>   			reg = <0x0 0x20002000 0x0 0x1000>;
> @@ -204,7 +204,7 @@ clkcfg: clkcfg@20002000 {
>   			#clock-cells = <1>;
>   		};
>   
> -		serial0: serial@20000000 {
> +		mmuart0: serial@20000000 {
>   			compatible = "ns16550a";
>   			reg = <0x0 0x20000000 0x0 0x400>;
>   			reg-io-width = <4>;
> @@ -216,7 +216,7 @@ serial0: serial@20000000 {
>   			status = "disabled";
>   		};
>   
> -		serial1: serial@20100000 {
> +		mmuart1: serial@20100000 {
>   			compatible = "ns16550a";
>   			reg = <0x0 0x20100000 0x0 0x400>;
>   			reg-io-width = <4>;
> @@ -228,7 +228,7 @@ serial1: serial@20100000 {
>   			status = "disabled";
>   		};
>   
> -		serial2: serial@20102000 {
> +		mmuart2: serial@20102000 {
>   			compatible = "ns16550a";
>   			reg = <0x0 0x20102000 0x0 0x400>;
>   			reg-io-width = <4>;
> @@ -240,7 +240,7 @@ serial2: serial@20102000 {
>   			status = "disabled";
>   		};
>   
> -		serial3: serial@20104000 {
> +		mmuart3: serial@20104000 {
>   			compatible = "ns16550a";
>   			reg = <0x0 0x20104000 0x0 0x400>;
>   			reg-io-width = <4>;
> @@ -257,37 +257,36 @@ mmc: mmc@20008000 {
>   			compatible = "microchip,mpfs-sd4hc", "cdns,sd4hc";
>   			reg = <0x0 0x20008000 0x0 0x1000>;
>   			interrupt-parent = <&plic>;
> -			interrupts = <88>, <89>;
> +			interrupts = <88>;
>   			clocks = <&clkcfg CLK_MMC>;
>   			max-frequency = <200000000>;
>   			status = "disabled";
>   		};
>   
> -		emac0: ethernet@20110000 {
> +		mac0: ethernet@20110000 {
>   			compatible = "cdns,macb";
>   			reg = <0x0 0x20110000 0x0 0x2000>;
> +			#address-cells = <1>;
> +			#size-cells = <0>;
>   			interrupt-parent = <&plic>;
> -			interrupts = <64>, <65>, <66>, <67>;
> +			interrupts = <64>, <65>, <66>, <67>, <68>, <69>;
>   			local-mac-address = [00 00 00 00 00 00];
>   			clocks = <&clkcfg CLK_MAC0>, <&clkcfg CLK_AHB>;
>   			clock-names = "pclk", "hclk";
>   			status = "disabled";
> -			#address-cells = <1>;
> -			#size-cells = <0>;
>   		};
>   
> -		emac1: ethernet@20112000 {
> +		mac1: ethernet@20112000 {
>   			compatible = "cdns,macb";
>   			reg = <0x0 0x20112000 0x0 0x2000>;
> +			#address-cells = <1>;
> +			#size-cells = <0>;
>   			interrupt-parent = <&plic>;
> -			interrupts = <70>, <71>, <72>, <73>;
> +			interrupts = <70>, <71>, <72>, <73>, <74>, <75>;
>   			local-mac-address = [00 00 00 00 00 00];
>   			clocks = <&clkcfg CLK_MAC1>, <&clkcfg CLK_AHB>;
> -			status = "disabled";
>   			clock-names = "pclk", "hclk";
> -			#address-cells = <1>;
> -			#size-cells = <0>;
> +			status = "disabled";
>   		};
> -
>   	};
>   };
> diff --git a/arch/riscv/configs/icicle_kit_defconfig b/arch/riscv/configs/icicle_kit_defconfig
> new file mode 100644
> index 000000000000..f484130e723d
> --- /dev/null
> +++ b/arch/riscv/configs/icicle_kit_defconfig
> @@ -0,0 +1,134 @@
> +CONFIG_SYSVIPC=y
> +CONFIG_POSIX_MQUEUE=y
> +CONFIG_NO_HZ_IDLE=y
> +CONFIG_HIGH_RES_TIMERS=y
> +CONFIG_IKCONFIG=y
> +CONFIG_IKCONFIG_PROC=y
> +CONFIG_CGROUPS=y
> +CONFIG_CGROUP_SCHED=y
> +CONFIG_CFS_BANDWIDTH=y
> +CONFIG_CGROUP_BPF=y
> +CONFIG_NAMESPACES=y
> +CONFIG_USER_NS=y
> +CONFIG_BLK_DEV_INITRD=y
> +CONFIG_EXPERT=y
> +CONFIG_KALLSYMS_ALL=y
> +CONFIG_BPF_SYSCALL=y
> +CONFIG_SOC_MICROCHIP_POLARFIRE=y
> +CONFIG_SMP=y
> +CONFIG_CMDLINE="earlyprintk earlycon=sbi debug uio_pdrv_genirq.of_id=generic-uio"
> +CONFIG_JUMP_LABEL=y
> +CONFIG_MODULES=y
> +CONFIG_MODULE_UNLOAD=y
> +CONFIG_BLK_DEV_ZONED=y
> +CONFIG_PARTITION_ADVANCED=y
> +CONFIG_NET=y
> +CONFIG_PACKET=y
> +CONFIG_UNIX=y
> +CONFIG_INET=y
> +CONFIG_NETLINK_DIAG=y
> +CONFIG_PCI=y
> +CONFIG_PCI_DEBUG=y
> +CONFIG_PCI_HOST_GENERIC=y
> +CONFIG_PCIE_MICROCHIP_HOST=y
> +CONFIG_DEVTMPFS=y
> +CONFIG_DEVTMPFS_MOUNT=y
> +CONFIG_BLK_DEV_LOOP=y
> +CONFIG_BLK_DEV_NBD=y
> +CONFIG_BLK_DEV_NVME=y
> +CONFIG_BLK_DEV_SD=y
> +CONFIG_BLK_DEV_SR=y
> +CONFIG_ATA=y
> +CONFIG_NETDEVICES=y
> +CONFIG_MACB=y
> +CONFIG_R8169=y
> +CONFIG_INPUT_MOUSEDEV=y
> +CONFIG_INPUT_EVDEV=y
> +CONFIG_SERIAL_8250=y
> +CONFIG_SERIAL_8250_CONSOLE=y
> +CONFIG_SERIAL_OF_PLATFORM=y
> +CONFIG_SERIAL_EARLYCON_RISCV_SBI=y
> +CONFIG_HW_RANDOM=y
> +CONFIG_HW_RANDOM_POLARFIRE_SOC=y
> +CONFIG_I2C_CHARDEV=y
> +CONFIG_I2C_MICROCHIP=y
> +CONFIG_SPI=y
> +CONFIG_SPI_POLARFIRE_SOC=y
> +CONFIG_SPI_POLARFIRE_SOC_QSPI=y
> +CONFIG_SPI_SPIDEV=y
> +CONFIG_GPIOLIB=y
> +CONFIG_GPIO_SYSFS=y
> +CONFIG_GPIO_POLARFIRE_SOC=y
> +CONFIG_POWER_RESET=y
> +CONFIG_MEDIA_SUPPORT=y
> +CONFIG_MEDIA_USB_SUPPORT=y
> +CONFIG_USB_VIDEO_CLASS=y
> +CONFIG_V4L_PLATFORM_DRIVERS=y
> +CONFIG_DRM=y
> +CONFIG_DRM_RADEON=y
> +CONFIG_DRM_NOUVEAU=y
> +CONFIG_FRAMEBUFFER_CONSOLE=y
> +CONFIG_USB=y
> +CONFIG_USB_XHCI_HCD=y
> +CONFIG_USB_XHCI_PLATFORM=y
> +CONFIG_USB_EHCI_HCD=y
> +CONFIG_USB_EHCI_HCD_PLATFORM=y
> +CONFIG_USB_OHCI_HCD=y
> +CONFIG_USB_OHCI_HCD_PLATFORM=y
> +CONFIG_USB_ACM=y
> +CONFIG_USB_STORAGE=y
> +CONFIG_USB_MUSB_HDRC=y
> +CONFIG_USB_MUSB_POLARFIRE_SOC=y
> +CONFIG_USB_INVENTRA_DMA=y
> +CONFIG_USB_SERIAL=y
> +CONFIG_NOP_USB_XCEIV=y
> +CONFIG_MMC=y
> +CONFIG_MMC_SDHCI=y
> +CONFIG_MMC_SDHCI_PLTFM=y
> +CONFIG_MMC_SDHCI_CADENCE=y
> +CONFIG_MMC_SPI=y
> +CONFIG_RTC_CLASS=y
> +CONFIG_RTC_DRV_POLARFIRE_SOC=y
> +CONFIG_DMADEVICES=y
> +CONFIG_SF_PDMA=y
> +CONFIG_UIO=y
> +CONFIG_UIO_PDRV_GENIRQ=y
> +CONFIG_UIO_DMEM_GENIRQ=y
> +CONFIG_UIO_MICROCHIP_CAN=y
> +CONFIG_UIO_MICROCHIP_PDMA=y
> +CONFIG_UIO_MICROCHIP_DMA=y
> +CONFIG_MAILBOX=y
> +CONFIG_POLARFIRE_SOC_MAILBOX=y
> +CONFIG_POLARFIRE_SOC_SYS_CTRL=y
> +CONFIG_POLARFIRE_SOC_GENERIC_SERVICE=y
> +CONFIG_IIO=y
> +CONFIG_IIO_SW_DEVICE=y
> +CONFIG_IIO_SW_TRIGGER=y
> +CONFIG_PAC193X=y
> +CONFIG_PWM=y
> +CONFIG_PWM_MICROCHIP_CORE=y
> +CONFIG_EXT4_FS=y
> +CONFIG_EXT4_FS_POSIX_ACL=y
> +CONFIG_FANOTIFY=y
> +CONFIG_MSDOS_FS=y
> +CONFIG_VFAT_FS=y
> +CONFIG_FAT_DEFAULT_IOCHARSET="ascii"
> +CONFIG_EXFAT_FS=y
> +CONFIG_TMPFS=y
> +CONFIG_TMPFS_POSIX_ACL=y
> +CONFIG_NFS_FS=y
> +CONFIG_NFS_V4=y
> +CONFIG_NFS_V4_1=y
> +CONFIG_NFS_V4_2=y
> +CONFIG_NLS_CODEPAGE_437=y
> +CONFIG_NLS_CODEPAGE_850=y
> +CONFIG_NLS_ASCII=y
> +CONFIG_NLS_ISO8859_1=y
> +CONFIG_NLS_UTF8=y
> +CONFIG_PRINTK_TIME=y
> +CONFIG_SCHED_STACK_END_CHECK=y
> +CONFIG_SOFTLOCKUP_DETECTOR=y
> +CONFIG_WQ_WATCHDOG=y
> +CONFIG_SCHEDSTATS=y
> +CONFIG_DEBUG_SPINLOCK=y
> +CONFIG_STACKTRACE=y
> 





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