On Thu, Jun 4, 2020 at 11:39 AM Eugeniy Paltsev <Eugeniy.Paltsev@xxxxxxxxxxxx> wrote: > Need to cc the DT list. > This initial port adds support of ARC HS4x/HS4xD Development Kit board > with some basic features such serial port, USB, SD/MMC, SPI flash, > Ethernet and others. > > The HSDK-4xD board has much in common with its predecessor - HSDK board. > However HSDK-4xD has some differences in comparison with its predecessor: > * based on quad core ARC HS48/HS47D processor (instead of quad core > ARC HS38) > * has ThinkSilicon GPU (instead of Vivante GPU) > * has ARC PGU and HDMI output > * has separate SDIO controller for WiFi module > * has additional timers with clocksource independent from CPU clocksource > (required for DVFS) > * has performance counters interrupt > * other minor stuff > > NOTE: > HSDK-4xD and HSDK may share part of DTS so we can move this common part > to one .dtsi file (as we have done it in U-boot). However we have quite > enough out of the tree patches for tweaking HSDK DTS (patches in out > Linux kernel verification flow, patches for run in simulation, etc...), > so I'd prefer to keep HSDK DTS untouched. That's why HSDK-4xD DTS is > created as an separate file. > > Cc: Rob Herring <robh+dt@xxxxxxxxxx> > Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@xxxxxxxxxxxx> > --- > arch/arc/boot/dts/hsdk-4xd.dts | 322 ++++++++++++++++++++++++++++ Please check this using W=1 and also build 'dtbs_check' (which needs dt-schema installed). > arch/arc/configs/hsdk_4xd_defconfig | 98 +++++++++ > arch/arc/kernel/devtree.c | 1 + > arch/arc/plat-hsdk/Kconfig | 3 +- > arch/arc/plat-hsdk/platform.c | 1 + > 5 files changed, 424 insertions(+), 1 deletion(-) > create mode 100644 arch/arc/boot/dts/hsdk-4xd.dts > create mode 100644 arch/arc/configs/hsdk_4xd_defconfig > > diff --git a/arch/arc/boot/dts/hsdk-4xd.dts b/arch/arc/boot/dts/hsdk-4xd.dts > new file mode 100644 > index 000000000000..2b7f76a01e3e > --- /dev/null > +++ b/arch/arc/boot/dts/hsdk-4xd.dts > @@ -0,0 +1,322 @@ > +// SPDX-License-Identifier: GPL-2.0-only Don't care about non-GPL OS's? > +/* > + * Copyright (C) 2020 Synopsys, Inc. (www.synopsys.com) > + */ > + > +/* > + * Device Tree for ARC HS4x/HS4xD Development Kit > + */ > +/dts-v1/; > + > +#include <dt-bindings/gpio/gpio.h> > +#include <dt-bindings/reset/snps,hsdk-reset.h> > + > +/ { > + model = "snps,hsdk-4xd"; > + compatible = "snps,hsdk-4xd"; > + > + #address-cells = <2>; > + #size-cells = <2>; > + > + chosen { > + bootargs = "earlycon=uart8250,mmio32,0xf0005000,115200n8 console=ttyS0,115200n8 debug print-fatal-signals=1"; You shouldn't really put debug options here like 'earlycon'. Also, use 'stdout-path' instead for the console. > + }; > + > + aliases { > + ethernet = &gmac; > + }; > + > + cpus { > + #address-cells = <1>; > + #size-cells = <0>; > + > + cpu@0 { > + device_type = "cpu"; > + compatible = "snps,archs48"; Not documented. > + reg = <0>; > + clocks = <&core_clk>; > + }; > + > + cpu@1 { > + device_type = "cpu"; > + compatible = "snps,archs48"; > + reg = <1>; > + clocks = <&core_clk>; > + }; > + > + cpu@2 { > + device_type = "cpu"; > + compatible = "snps,archs48"; > + reg = <2>; > + clocks = <&core_clk>; > + }; > + > + cpu@3 { > + device_type = "cpu"; > + compatible = "snps,archs48"; > + reg = <3>; > + clocks = <&core_clk>; > + }; > + }; > + > + input_clk: input-clk { > + #clock-cells = <0>; > + compatible = "fixed-clock"; > + clock-frequency = <33333333>; > + }; > + > + reg_5v0: regulator-5v0 { > + compatible = "regulator-fixed"; > + > + regulator-name = "5v0-supply"; > + regulator-min-microvolt = <5000000>; > + regulator-max-microvolt = <5000000>; > + }; > + > + cpu_intc: cpu-interrupt-controller { > + compatible = "snps,archs-intc"; > + interrupt-controller; > + #interrupt-cells = <1>; > + }; > + > + idu_intc: idu-interrupt-controller { > + compatible = "snps,archs-idu-intc"; > + interrupt-controller; > + #interrupt-cells = <1>; > + interrupt-parent = <&cpu_intc>; > + }; > + > + arcpct: pct { > + compatible = "snps,archs-pct"; > + interrupt-parent = <&cpu_intc>; > + interrupts = <20>; > + }; > + > + /* TIMER0 with interrupt for clockevent */ > + timer { > + compatible = "snps,arc-timer"; > + interrupts = <16>; > + interrupt-parent = <&cpu_intc>; > + clocks = <&core_clk>; > + }; > + > + /* 64-bit Global Free Running Counter */ > + gfrc { > + compatible = "snps,archs-timer-gfrc"; > + clocks = <&core_clk>; > + }; > + > + soc { > + compatible = "simple-bus"; > + #address-cells = <1>; > + #size-cells = <1>; > + interrupt-parent = <&idu_intc>; > + > + ranges = <0x00000000 0x0 0xf0000000 0x10000000>; > + > + cgu_rst: reset-controller@8a0 { > + compatible = "snps,hsdk-reset"; > + #reset-cells = <1>; > + reg = <0x8a0 0x4>, <0xff0 0x4>; > + }; > + > + core_clk: core-clk@0 { Should be: clock-controller@10 > + compatible = "snps,hsdk-core-pll-clock"; > + reg = <0x00 0x10>, <0x14b8 0x4>; > + #clock-cells = <0>; > + clocks = <&input_clk>; > + > + /* > + * Set initial core pll output frequency to 1GHz. > + * It will be applied at the core pll driver probing > + * on early boot. > + */ > + assigned-clocks = <&core_clk>; > + assigned-clock-rates = <1000000000>; > + }; > + > + serial: serial@5000 { > + compatible = "snps,dw-apb-uart"; > + reg = <0x5000 0x100>; > + clock-frequency = <33330000>; > + interrupts = <6>; > + baud = <115200>; > + reg-shift = <2>; > + reg-io-width = <4>; > + }; > + > + gmacclk: gmacclk { > + compatible = "fixed-clock"; > + clock-frequency = <400000000>; > + #clock-cells = <0>; > + }; > + > + mmcclk_ciu: mmcclk-ciu { > + compatible = "fixed-clock"; > + /* > + * DW sdio controller has external ciu clock divider > + * controlled via register in SDIO IP. Due to its > + * unexpected default value (it should divide by 1 > + * but it divides by 8) SDIO IP uses wrong clock and > + * works unstable (see STAR 9001204800) > + * We switched to the minimum possible value of the > + * divisor (div-by-2) in HSDK platform code. > + * So add temporary fix and change clock frequency > + * to 50000000 Hz until we fix dw sdio driver itself. > + */ > + clock-frequency = <50000000>; > + #clock-cells = <0>; > + }; > + > + mmcclk_biu: mmcclk-biu { > + compatible = "fixed-clock"; > + clock-frequency = <400000000>; > + #clock-cells = <0>; > + }; > + > + dmac_core_clk: dmac-core-clk { > + compatible = "fixed-clock"; > + clock-frequency = <400000000>; > + #clock-cells = <0>; > + }; > + > + dmac_cfg_clk: dmac-gpu-cfg-clk { > + compatible = "fixed-clock"; > + clock-frequency = <200000000>; > + #clock-cells = <0>; > + }; > + > + gmac: ethernet@8000 { > + #interrupt-cells = <1>; > + compatible = "snps,dwmac"; > + reg = <0x8000 0x2000>; > + interrupts = <10>; > + interrupt-names = "macirq"; > + phy-mode = "rgmii"; > + snps,pbl = <32>; > + snps,multicast-filter-bins = <256>; > + clocks = <&gmacclk>; > + clock-names = "stmmaceth"; > + phy-handle = <&phy0>; > + resets = <&cgu_rst HSDK_ETH_RESET>; > + reset-names = "stmmaceth"; > + mac-address = [00 00 00 00 00 00]; /* Filled in by U-Boot */ > + dma-coherent; > + > + tx-fifo-depth = <4096>; > + rx-fifo-depth = <4096>; > + > + mdio { > + #address-cells = <1>; > + #size-cells = <0>; > + compatible = "snps,dwmac-mdio"; > + phy0: ethernet-phy@0 { > + reg = <0>; > + }; > + }; > + }; > + > + ohci@60000 { > + compatible = "snps,hsdk-v1.0-ohci", "generic-ohci"; > + reg = <0x60000 0x100>; > + interrupts = <15>; > + resets = <&cgu_rst HSDK_USB_RESET>; > + dma-coherent; > + }; > + > + ehci@40000 { > + compatible = "snps,hsdk-v1.0-ehci", "generic-ehci"; > + reg = <0x40000 0x100>; > + interrupts = <15>; > + resets = <&cgu_rst HSDK_USB_RESET>; > + dma-coherent; > + }; > + > + mmc@a000 { > + compatible = "altr,socfpga-dw-mshc"; > + reg = <0xa000 0x400>; > + num-slots = <1>; > + fifo-depth = <16>; > + card-detect-delay = <200>; > + clocks = <&mmcclk_biu>, <&mmcclk_ciu>; > + clock-names = "biu", "ciu"; > + interrupts = <12>; > + bus-width = <4>; > + dma-coherent; > + }; > + > + spi0: spi@20000 { > + compatible = "snps,dw-apb-ssi"; > + reg = <0x20000 0x100>; > + #address-cells = <1>; > + #size-cells = <0>; > + interrupts = <16>; > + num-cs = <2>; > + reg-io-width = <4>; > + clocks = <&input_clk>; > + cs-gpios = <&creg_gpio 0 GPIO_ACTIVE_LOW>, > + <&creg_gpio 1 GPIO_ACTIVE_LOW>; > + > + spi-flash@0 { > + compatible = "sst26wf016b", "jedec,spi-nor"; > + reg = <0>; > + #address-cells = <1>; > + #size-cells = <1>; > + spi-max-frequency = <4000000>; > + }; > + > + adc@1 { > + compatible = "ti,adc108s102"; > + reg = <1>; > + vref-supply = <®_5v0>; > + spi-max-frequency = <1000000>; > + }; > + }; > + > + creg_gpio: gpio@14b0 { > + compatible = "snps,creg-gpio-hsdk"; > + reg = <0x14b0 0x4>; > + gpio-controller; > + #gpio-cells = <2>; > + ngpios = <2>; > + }; > + > + gpio: gpio@3000 { > + compatible = "snps,dw-apb-gpio"; > + reg = <0x3000 0x20>; > + #address-cells = <1>; > + #size-cells = <0>; > + > + gpio_port_a: gpio-controller@0 { > + compatible = "snps,dw-apb-gpio-port"; > + gpio-controller; > + #gpio-cells = <2>; > + snps,nr-gpios = <24>; > + reg = <0>; > + }; > + }; > + > + dmac: dmac@80000 { > + compatible = "snps,axi-dma-1.01a"; > + reg = <0x80000 0x400>; > + interrupts = <27>; > + clocks = <&dmac_core_clk>, <&dmac_cfg_clk>; > + clock-names = "core-clk", "cfgr-clk"; > + > + dma-channels = <4>; > + snps,dma-masters = <2>; > + snps,data-width = <3>; > + snps,block-size = <4096 4096 4096 4096>; > + snps,priority = <0 1 2 3>; > + snps,axi-max-burst-len = <16>; > + }; > + }; > + > + memory@80000000 { > + #address-cells = <2>; > + #size-cells = <2>; > + device_type = "memory"; > + reg = <0x0 0x80000000 0x0 0x40000000>; /* 1 GB lowmem */ > + /* 0x1 0x00000000 0x0 0x40000000>; 1 GB highmem */ > + }; > +}; > diff --git a/arch/arc/configs/hsdk_4xd_defconfig b/arch/arc/configs/hsdk_4xd_defconfig > new file mode 100644 > index 000000000000..7f6bdb848400 > --- /dev/null > +++ b/arch/arc/configs/hsdk_4xd_defconfig > @@ -0,0 +1,98 @@ > +CONFIG_SYSVIPC=y > +# CONFIG_CROSS_MEMORY_ATTACH is not set > +CONFIG_NO_HZ_IDLE=y > +CONFIG_HIGH_RES_TIMERS=y > +CONFIG_PREEMPT=y > +CONFIG_IKCONFIG=y > +CONFIG_IKCONFIG_PROC=y > +CONFIG_NAMESPACES=y > +# CONFIG_UTS_NS is not set > +# CONFIG_PID_NS is not set > +CONFIG_BLK_DEV_INITRD=y > +CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE_O3=y > +CONFIG_EMBEDDED=y > +CONFIG_PERF_EVENTS=y > +# CONFIG_VM_EVENT_COUNTERS is not set > +# CONFIG_COMPAT_BRK is not set > +CONFIG_SLAB=y > +CONFIG_ARC_SOC_HSDK=y > +CONFIG_SMP=y > +CONFIG_ARC_TUNE_MCPU="-mcpu=hs4x_rel31" > +CONFIG_ARC_DSP_KERNEL=y > +CONFIG_LINUX_LINK_BASE=0x90000000 > +CONFIG_LINUX_RAM_BASE=0x80000000 > +CONFIG_ARC_BUILTIN_DTB_NAME="hsdk-4xd" > +CONFIG_JUMP_LABEL=y > +CONFIG_MODULES=y > +CONFIG_MODULE_UNLOAD=y > +# CONFIG_COMPACTION is not set > +CONFIG_NET=y > +CONFIG_PACKET=y > +CONFIG_UNIX=y > +CONFIG_INET=y > +CONFIG_DEVTMPFS=y > +# CONFIG_STANDALONE is not set > +# CONFIG_PREVENT_FIRMWARE_BUILD is not set > +CONFIG_MTD=y > +CONFIG_MTD_SPI_NOR=y > +CONFIG_BLK_DEV_RAM=y > +CONFIG_SCSI=y > +CONFIG_BLK_DEV_SD=y > +CONFIG_NETDEVICES=y > +CONFIG_STMMAC_ETH=y > +CONFIG_MICREL_PHY=y > +CONFIG_INPUT_EVDEV=y > +# CONFIG_INPUT_KEYBOARD is not set > +# CONFIG_INPUT_MOUSE is not set > +# CONFIG_SERIO is not set > +# CONFIG_LEGACY_PTYS is not set > +CONFIG_SERIAL_8250=y > +CONFIG_SERIAL_8250_CONSOLE=y > +CONFIG_SERIAL_8250_DW=y > +CONFIG_SERIAL_OF_PLATFORM=y > +# CONFIG_HW_RANDOM is not set > +CONFIG_SPI=y > +CONFIG_SPI_DESIGNWARE=y > +CONFIG_SPI_DW_MMIO=y > +CONFIG_GPIOLIB=y > +CONFIG_GPIO_SYSFS=y > +CONFIG_GPIO_DWAPB=y > +CONFIG_GPIO_SNPS_CREG=y > +# CONFIG_HWMON is not set > +CONFIG_THERMAL=y > +CONFIG_REGULATOR=y > +CONFIG_REGULATOR_FIXED_VOLTAGE=y > +CONFIG_DRM=y > +# CONFIG_DRM_FBDEV_EMULATION is not set > +CONFIG_DRM_UDL=y > +CONFIG_FB=y > +CONFIG_FRAMEBUFFER_CONSOLE=y > +CONFIG_USB=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_STORAGE=y > +CONFIG_MMC=y > +CONFIG_MMC_SDHCI=y > +CONFIG_MMC_SDHCI_PLTFM=y > +CONFIG_MMC_DW=y > +CONFIG_DMADEVICES=y > +CONFIG_DW_AXI_DMAC=y > +CONFIG_IIO=y > +CONFIG_TI_ADC108S102=y > +CONFIG_EXT3_FS=y > +CONFIG_VFAT_FS=y > +CONFIG_TMPFS=y > +CONFIG_NFS_FS=y > +CONFIG_NFS_V3_ACL=y > +CONFIG_NLS_CODEPAGE_437=y > +CONFIG_NLS_ISO8859_1=y > +CONFIG_CRYPTO_ECHAINIV=y > +# CONFIG_ENABLE_MUST_CHECK is not set > +CONFIG_STRIP_ASM_SYMS=y > +CONFIG_SOFTLOCKUP_DETECTOR=y > +CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=10 > +# CONFIG_SCHED_DEBUG is not set > +# CONFIG_DEBUG_PREEMPT is not set > +# CONFIG_FTRACE is not set > diff --git a/arch/arc/kernel/devtree.c b/arch/arc/kernel/devtree.c > index fa86d13df5ed..81f881af7356 100644 > --- a/arch/arc/kernel/devtree.c > +++ b/arch/arc/kernel/devtree.c > @@ -27,6 +27,7 @@ static void __init arc_set_early_base_baud(unsigned long dt_root) > if (of_flat_dt_is_compatible(dt_root, "abilis,arc-tb10x")) > arc_base_baud = 166666666; /* Fixed 166.6MHz clk (TB10x) */ > else if (of_flat_dt_is_compatible(dt_root, "snps,arc-sdp") || > + of_flat_dt_is_compatible(dt_root, "snps,hsdk-4xd") || > of_flat_dt_is_compatible(dt_root, "snps,hsdk")) > arc_base_baud = 33333333; /* Fixed 33MHz clk (AXS10x & HSDK) */ > else if (of_flat_dt_is_compatible(dt_root, "ezchip,arc-nps")) > diff --git a/arch/arc/plat-hsdk/Kconfig b/arch/arc/plat-hsdk/Kconfig > index ce8101834518..bde310b9ee17 100644 > --- a/arch/arc/plat-hsdk/Kconfig > +++ b/arch/arc/plat-hsdk/Kconfig > @@ -3,10 +3,11 @@ > # > > menuconfig ARC_SOC_HSDK > - bool "ARC HS Development Kit SOC" > + bool "ARC HSDK or HSDK-4xD SoCs" > depends on ISA_ARCV2 > select ARC_HAS_ACCL_REGS > select ARC_IRQ_NO_AUTOSAVE > + select ARC_LPB_DISABLE > select CLK_HSDK > select RESET_HSDK > select HAVE_PCI > diff --git a/arch/arc/plat-hsdk/platform.c b/arch/arc/plat-hsdk/platform.c > index 0b961a2a10b8..fddb9bae6add 100644 > --- a/arch/arc/plat-hsdk/platform.c > +++ b/arch/arc/plat-hsdk/platform.c > @@ -332,6 +332,7 @@ static void __init hsdk_init_early(void) > } > > static const char *hsdk_compat[] __initconst = { > + "snps,hsdk-4xd", > "snps,hsdk", > NULL, > }; > -- > 2.21.3 > _______________________________________________ linux-snps-arc mailing list linux-snps-arc@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/linux-snps-arc