| Message ID | 20201107081420.60325-27-damien.lemoal@wdc.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | RISC-V Kendryte K210 support improvments | expand |
On 11/7/20 3:14 AM, Damien Le Moal wrote: > Update the Kendryte K210 base device tree k210.dtsi to define all > peripherals of the SoC, their clocks and reset lines. The device tree > file k210.dts is renamed to k210_generic.dts and becomes the default > dwivalue selection of the SOC_KENDRYTE_K210_DTB_BUILTIN_SOURCE > configuration option. No device beside the serial console is defined by > this device tree. This makes it suitable for all known K210 boards using > a builtin initramfs. > > Most updates to the k210.dtsi file come from Sean Anderson's work on > U-Boot support for the Kendryte K210. > > Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com> > --- > arch/riscv/Kconfig.socs | 2 +- > arch/riscv/boot/dts/kendryte/k210.dts | 23 - > arch/riscv/boot/dts/kendryte/k210.dtsi | 564 +++++++++++++++++- > arch/riscv/boot/dts/kendryte/k210_generic.dts | 46 ++ > 4 files changed, 583 insertions(+), 52 deletions(-) > delete mode 100644 arch/riscv/boot/dts/kendryte/k210.dts > create mode 100644 arch/riscv/boot/dts/kendryte/k210_generic.dts > > diff --git a/arch/riscv/Kconfig.socs b/arch/riscv/Kconfig.socs > index 56ba82a64e18..9230af7fb763 100644 > --- a/arch/riscv/Kconfig.socs > +++ b/arch/riscv/Kconfig.socs > @@ -59,7 +59,7 @@ config SOC_KENDRYTE_K210_DTB_SOURCE > string "Source file for the Kendryte K210 builtin DTB" > depends on SOC_KENDRYTE > depends on SOC_KENDRYTE_K210_DTB_BUILTIN > - default "k210" > + default "k210_generic" > help > Base name (without suffix, relative to arch/riscv/boot/dts/kendryte) > for the DTS file that will be used to produce the DTB linked into the > diff --git a/arch/riscv/boot/dts/kendryte/k210.dts b/arch/riscv/boot/dts/kendryte/k210.dts > deleted file mode 100644 > index 0d1f28fce6b2..000000000000 > --- a/arch/riscv/boot/dts/kendryte/k210.dts > +++ /dev/null > @@ -1,23 +0,0 @@ > -// SPDX-License-Identifier: GPL-2.0+ > -/* > - * Copyright (C) 2020 Western Digital Corporation or its affiliates. > - */ > - > -/dts-v1/; > - > -#include "k210.dtsi" > - > -/ { > - model = "Kendryte K210 generic"; > - compatible = "kendryte,k210"; > - > - chosen { > - bootargs = "earlycon console=ttySIF0"; > - stdout-path = "serial0"; > - }; > -}; > - > -&uarths0 { > - status = "okay"; > -}; > - > diff --git a/arch/riscv/boot/dts/kendryte/k210.dtsi b/arch/riscv/boot/dts/kendryte/k210.dtsi > index d2d0ff645632..b8706fe78b21 100644 > --- a/arch/riscv/boot/dts/kendryte/k210.dtsi > +++ b/arch/riscv/boot/dts/kendryte/k210.dtsi > @@ -1,9 +1,12 @@ > // SPDX-License-Identifier: GPL-2.0+ > /* > - * Copyright (C) 2019 Sean Anderson <seanga2@gmail.com> > + * Copyright (C) 2019-20 Sean Anderson <seanga2@gmail.com> > * Copyright (C) 2020 Western Digital Corporation or its affiliates. > */ > #include <dt-bindings/clock/k210-clk.h> > +#include <dt-bindings/mfd/k210-sysctl.h> > +#include <dt-bindings/pinctrl/k210-pinctrl.h> > +#include <dt-bindings/reset/k210-rst.h> > > / { > /* > @@ -15,7 +18,26 @@ / { > compatible = "kendryte,k210"; > > aliases { > + cpu0 = &cpu0; > + cpu1 = &cpu1; > + dma0 = &dmac0; > + gpio0 = &gpio0; > + gpio1 = &gpio1_0; > + i2c0 = &i2c0; > + i2c1 = &i2c1; > + i2c2 = &i2c2; > + pinctrl0 = &fpioa; > serial0 = &uarths0; > + serial1 = &uart1; > + serial2 = &uart2; > + serial3 = &uart3; > + spi0 = &spi0; > + spi1 = &spi1; > + spi2 = &spi2; > + spi3 = &spi3; > + timer0 = &timer0; > + timer1 = &timer1; > + timer2 = &timer2; > }; > > /* > @@ -30,16 +52,15 @@ cpus { > timebase-frequency = <7800000>; > cpu0: cpu@0 { > device_type = "cpu"; > - reg = <0>; > compatible = "kendryte,k210", "sifive,rocket0", "riscv"; > - riscv,isa = "rv64imafdc"; > + reg = <0>; > + riscv,isa = "rv64imafdgc"; > mmu-type = "none"; > - i-cache-size = <0x8000>; > i-cache-block-size = <64>; > - d-cache-size = <0x8000>; > + i-cache-size = <0x8000>; > d-cache-block-size = <64>; > - clocks = <&sysctl K210_CLK_CPU>; > - clock-frequency = <390000000>; > + d-cache-size = <0x8000>; > + clocks = <&sysclk K210_CLK_CPU>; > cpu0_intc: interrupt-controller { > #interrupt-cells = <1>; > interrupt-controller; > @@ -48,16 +69,15 @@ cpu0_intc: interrupt-controller { > }; > cpu1: cpu@1 { > device_type = "cpu"; > - reg = <1>; > compatible = "kendryte,k210", "sifive,rocket0", "riscv"; > - riscv,isa = "rv64imafdc"; > + reg = <1>; > + riscv,isa = "rv64imafdgc"; > mmu-type = "none"; > - i-cache-size = <0x8000>; > i-cache-block-size = <64>; > - d-cache-size = <0x8000>; > + i-cache-size = <0x8000>; > d-cache-block-size = <64>; > - clocks = <&sysctl K210_CLK_CPU>; > - clock-frequency = <390000000>; > + d-cache-size = <0x8000>; > + clocks = <&sysclk K210_CLK_CPU>; > cpu1_intc: interrupt-controller { > #interrupt-cells = <1>; > interrupt-controller; > @@ -68,14 +88,19 @@ cpu1_intc: interrupt-controller { > > sram: memory@80000000 { > device_type = "memory"; > + compatible = "kendryte,k210-sram"; > reg = <0x80000000 0x400000>, > <0x80400000 0x200000>, > <0x80600000 0x200000>; > reg-names = "sram0", "sram1", "aisram"; > + clocks = <&sysclk K210_CLK_SRAM0>, > + <&sysclk K210_CLK_SRAM1>, > + <&sysclk K210_CLK_AI>; > + clock-names = "sram0", "sram1", "aisram"; > }; > > clocks { > - in0: oscillator { > + in0: osc { > compatible = "fixed-clock"; > #clock-cells = <0>; > clock-frequency = <26000000>; > @@ -89,28 +114,34 @@ soc { > ranges; > interrupt-parent = <&plic0>; > > - sysctl: sysctl@50440000 { > - compatible = "kendryte,k210-sysctl", "simple-mfd"; > - reg = <0x50440000 0x1000>; > - #clock-cells = <1>; > + debug0: debug@0 { > + compatible = "kendryte,k210-debug", "riscv,debug"; > + reg = <0x0 0x1000>; > + status = "disabled"; > + }; > + > + rom0: nvmem@1000 { > + reg = <0x1000 0x1000>; > + read-only; > + status = "disabled"; > }; > > clint0: clint@2000000 { > #interrupt-cells = <1>; > - compatible = "riscv,clint0"; > + compatible = "kendryte,k210-clint", "riscv,clint0"; > reg = <0x2000000 0xC000>; > - interrupts-extended = <&cpu0_intc 3 &cpu0_intc 7 > - &cpu1_intc 3 &cpu1_intc 7>; > - clocks = <&sysctl K210_CLK_ACLK>; > + interrupts-extended = <&cpu0_intc 3>, <&cpu0_intc 7>, > + <&cpu1_intc 3>, <&cpu1_intc 7>; > + clocks = <&sysclk K210_CLK_CLINT>; > }; > > - plic0: interrupt-controller@c000000 { > + plic0: interrupt-controller@C000000 { > #interrupt-cells = <1>; > - interrupt-controller; > - compatible = "kendryte,k210-plic0", "riscv,plic0"; > + compatible = "kendryte,k210-plic", "riscv,plic0"; > reg = <0xC000000 0x4000000>; > - interrupts-extended = <&cpu0_intc 11>, <&cpu0_intc 0xffffffff>, > - <&cpu1_intc 11>, <&cpu1_intc 0xffffffff>; > + interrupt-controller; > + interrupts-extended = <&cpu0_intc 11>, > + <&cpu1_intc 11>; > riscv,ndev = <65>; > riscv,max-priority = <7>; > }; > @@ -119,7 +150,484 @@ uarths0: serial@38000000 { > compatible = "kendryte,k210-uarths", "sifive,uart0"; > reg = <0x38000000 0x1000>; > interrupts = <33>; > - clocks = <&sysctl K210_CLK_CPU>; > + clocks = <&sysclk K210_CLK_CPU>; > + status = "disabled"; > + }; > + > + gpio0: gpio-controller@38001000 { > + #interrupt-cells = <2>; > + #gpio-cells = <2>; > + compatible = "kendryte,k210-gpiohs", "sifive,gpio0"; > + reg = <0x38001000 0x1000>; > + interrupt-controller; > + interrupts = <34 35 36 37 38 39 40 41 > + 42 43 44 45 46 47 48 49 > + 50 51 52 53 54 55 56 57 > + 58 59 60 61 62 63 64 65>; > + gpio-controller; > + ngpios = <32>; > + status = "disabled"; > + }; > + > + kpu0: kpu@40800000 { > + compatible = "kendryte,k210-kpu"; > + reg = <0x40800000 0xc00000>; > + interrupts = <25>; > + clocks = <&sysclk K210_CLK_AI>; > + status = "disabled"; > + }; > + > + fft0: fft@42000000 { > + compatible = "kendryte,k210-fft"; > + reg = <0x42000000 0x400000>; > + interrupts = <26>; > + clocks = <&sysclk K210_CLK_FFT>; > + resets = <&sysrst K210_RST_FFT>; > + status = "disabled"; > + }; > + > + dmac0: dma-controller@50000000 { > + compatible = "kendryte,k210-dmac", "snps,axi-dma-1.01a"; > + reg = <0x50000000 0x1000>; > + interrupts = <27 28 29 30 31 32>; > + clocks = <&sysclk K210_CLK_DMA>, <&sysclk K210_CLK_DMA>; > + clock-names = "core-clk", "cfgr-clk"; > + resets = <&sysrst K210_RST_DMA>; > + dma-channels = <6>; > + snps,dma-masters = <2>; > + snps,priority = <0 1 2 3 4 5>; > + snps,data-width = <5>; > + snps,block-size = <0x200000 0x200000 0x200000 > + 0x200000 0x200000 0x200000>; > + snps,axi-max-burst-len = <256>; > + status = "disabled"; > + }; > + > + apb0: bus@50200000 { > + #address-cells = <1>; > + #size-cells = <1>; > + compatible = "kendryte,k210-apb", "simple-pm-bus"; > + ranges; > + clocks = <&sysclk K210_CLK_APB0>; > + > + gpio1: gpio-controller@50200000 { > + #address-cells = <1>; > + #size-cells = <0>; > + compatible = "kendryte,k210-gpio", > + "snps,dw-apb-gpio"; > + reg = <0x50200000 0x80>; > + clocks = <&sysclk K210_CLK_APB0>, > + <&sysclk K210_CLK_GPIO>; > + clock-names = "bus", "db"; > + resets = <&sysrst K210_RST_GPIO>; > + status = "disabled"; > + > + gpio1_0: gpio1@0 { > + #gpio-cells = <2>; > + #interrupt-cells = <2>; > + compatible = "snps,dw-apb-gpio-port"; > + reg = <0>; > + interrupt-controller; > + interrupts = <23>; > + gpio-controller; > + snps,nr-gpios = <8>; > + }; > + }; > + > + uart1: serial@50210000 { > + compatible = "kendryte,k210-uart", > + "snps,dw-apb-uart"; > + reg = <0x50210000 0x100>; > + interrupts = <11>; > + clocks = <&sysclk K210_CLK_UART1>, > + <&sysclk K210_CLK_APB0>; > + clock-names = "baudclk", "apb_pclk"; > + resets = <&sysrst K210_RST_UART1>; > + reg-io-width = <4>; > + reg-shift = <2>; > + dcd-override; > + dsr-override; > + cts-override; > + ri-override; > + status = "disabled"; > + }; > + > + uart2: serial@50220000 { > + compatible = "kendryte,k210-uart", > + "snps,dw-apb-uart"; > + reg = <0x50220000 0x100>; > + interrupts = <12>; > + clocks = <&sysclk K210_CLK_UART2>, > + <&sysclk K210_CLK_APB0>; > + clock-names = "baudclk", "apb_pclk"; > + resets = <&sysrst K210_RST_UART2>; > + reg-io-width = <4>; > + reg-shift = <2>; > + dcd-override; > + dsr-override; > + cts-override; > + ri-override; > + status = "disabled"; > + }; > + > + uart3: serial@50230000 { > + compatible = "kendryte,k210-uart", > + "snps,dw-apb-uart"; > + reg = <0x50230000 0x100>; > + interrupts = <13>; > + clocks = <&sysclk K210_CLK_UART3>, > + <&sysclk K210_CLK_APB0>; > + clock-names = "baudclk", "apb_pclk"; > + resets = <&sysrst K210_RST_UART3>; > + reg-io-width = <4>; > + reg-shift = <2>; > + dcd-override; > + dsr-override; > + cts-override; > + ri-override; > + status = "disabled"; > + }; > + > + spi2: spi@50240000 { > + compatible = "canaan,kendryte-k210-spi", > + "snps,dw-apb-ssi-4.01", > + "snps,dw-apb-ssi"; > + spi-slave; > + reg = <0x50240000 0x100>; > + interrupts = <3>; > + clocks = <&sysclk K210_CLK_SPI2>, > + <&sysclk K210_CLK_APB0>; > + clock-names = "ssi_clk", "pclk"; > + resets = <&sysrst K210_RST_SPI2>; > + spi-max-frequency = <25000000>; > + status = "disabled"; > + }; > + > + i2s0: i2s@50250000 { > + compatible = "kendryte,k210-i2s", > + "snps,designware-i2s"; > + reg = <0x50250000 0x200>; > + interrupts = <5>; > + clocks = <&sysclk K210_CLK_I2S0>; > + clock-names = "i2sclk"; > + resets = <&sysrst K210_RST_I2S0>; > + status = "disabled"; > + }; > + > + apu0: sound@520250200 { > + compatible = "kendryte,k210-apu"; > + reg = <0x50250200 0x200>; > + status = "disabled"; > + }; > + > + i2s1: i2s@50260000 { > + compatible = "kendryte,k210-i2s", > + "snps,designware-i2s"; > + reg = <0x50260000 0x200>; > + interrupts = <6>; > + clocks = <&sysclk K210_CLK_I2S1>; > + clock-names = "i2sclk"; > + resets = <&sysrst K210_RST_I2S1>; > + status = "disabled"; > + }; > + > + i2s2: i2s@50270000 { > + compatible = "kendryte,k210-i2s", > + "snps,designware-i2s"; > + reg = <0x50270000 0x200>; > + interrupts = <7>; > + clocks = <&sysclk K210_CLK_I2S2>; > + clock-names = "i2sclk"; > + resets = <&sysrst K210_RST_I2S2>; > + status = "disabled"; > + }; > + > + i2c0: i2c@50280000 { > + compatible = "kendryte,k210-i2c", > + "snps,designware-i2c"; > + reg = <0x50280000 0x100>; > + interrupts = <8>; > + clocks = <&sysclk K210_CLK_I2C0>, > + <&sysclk K210_CLK_APB0>; > + clock-names = "ref", "pclk"; > + resets = <&sysrst K210_RST_I2C0>; > + status = "disabled"; > + }; > + > + i2c1: i2c@50290000 { > + compatible = "kendryte,k210-i2c", > + "snps,designware-i2c"; > + reg = <0x50290000 0x100>; > + interrupts = <9>; > + clocks = <&sysclk K210_CLK_I2C1>, > + <&sysclk K210_CLK_APB0>; > + clock-names = "ref", "pclk"; > + resets = <&sysrst K210_RST_I2C1>; > + status = "disabled"; > + }; > + > + i2c2: i2c@502A0000 { > + compatible = "kendryte,k210-i2c", > + "snps,designware-i2c"; > + reg = <0x502A0000 0x100>; > + interrupts = <10>; > + clocks = <&sysclk K210_CLK_I2C2>, > + <&sysclk K210_CLK_APB0>; > + clock-names = "ref", "pclk"; > + resets = <&sysrst K210_RST_I2C2>; > + status = "disabled"; > + }; > + > + fpioa: pinmux@502B0000 { > + compatible = "kendryte,k210-fpioa"; > + reg = <0x502B0000 0x100>; > + clocks = <&sysclk K210_CLK_FPIOA>, > + <&sysclk K210_CLK_APB0>; > + clock-names = "ref", "pclk"; > + resets = <&sysrst K210_RST_FPIOA>; > + kendryte,sysctl = <&sysctl>; > + kendryte,power-offset = <K210_SYSCTL_POWER_SEL>; > + status = "disabled"; > + }; > + > + sha256: sha256@502C0000 { > + compatible = "kendryte,k210-sha256"; > + reg = <0x502C0000 0x100>; > + clocks = <&sysclk K210_CLK_SHA>; > + resets = <&sysrst K210_RST_SHA>; > + status = "disabled"; > + }; > + > + timer0: timer@502D0000 { > + compatible = "kendryte,k210-timer", > + "snps,dw-apb-timer"; > + reg = <0x502D0000 0x100>; > + interrupts = <14 15>; > + clocks = <&sysclk K210_CLK_TIMER0>, > + <&sysclk K210_CLK_APB0>; > + clock-names = "timer", "pclk"; > + resets = <&sysrst K210_RST_TIMER0>; > + status = "disabled"; > + }; > + > + timer1: timer@502E0000 { > + compatible = "kendryte,k210-timer", > + "snps,dw-apb-timer"; > + reg = <0x502E0000 0x100>; > + interrupts = <16 17>; > + clocks = <&sysclk K210_CLK_TIMER1>, > + <&sysclk K210_CLK_APB0>; > + clock-names = "timer", "pclk"; > + resets = <&sysrst K210_RST_TIMER1>; > + status = "disabled"; > + }; > + > + timer2: timer@502F0000 { > + compatible = "kendryte,k210-timer", > + "snps,dw-apb-timer"; > + reg = <0x502F0000 0x100>; > + interrupts = <18 19>; > + clocks = <&sysclk K210_CLK_TIMER2>, > + <&sysclk K210_CLK_APB0>; > + clock-names = "timer", "pclk"; > + resets = <&sysrst K210_RST_TIMER2>; > + status = "disabled"; > + }; > + }; > + > + apb1: bus@50400000 { > + #address-cells = <1>; > + #size-cells = <1>; > + compatible = "kendryte,k210-apb", "simple-pm-bus"; > + ranges; > + clocks = <&sysclk K210_CLK_APB1>; > + > + wdt0: watchdog@50400000 { > + compatible = "kendryte,k210-wdt", "snps,dw-wdt"; > + reg = <0x50400000 0x100>; > + interrupts = <21>; > + clocks = <&sysclk K210_CLK_WDT0>, > + <&sysclk K210_CLK_APB1>; > + clock-names = "tclk", "pclk"; > + resets = <&sysrst K210_RST_WDT0>; > + status = "disabled"; > + }; > + > + wdt1: watchdog@50410000 { > + compatible = "kendryte,k210-wdt", "snps,dw-wdt"; > + reg = <0x50410000 0x100>; > + interrupts = <22>; > + clocks = <&sysclk K210_CLK_WDT1>, > + <&sysclk K210_CLK_APB1>; > + clock-names = "tclk", "pclk"; > + resets = <&sysrst K210_RST_WDT1>; > + status = "disabled"; > + }; > + > + otp0: nvmem@50420000 { > + #address-cells = <1>; > + #size-cells = <1>; > + compatible = "kendryte,k210-otp"; > + reg = <0x50420000 0x100>, > + <0x88000000 0x20000>; > + reg-names = "reg", "mem"; > + clocks = <&sysclk K210_CLK_ROM>; > + resets = <&sysrst K210_RST_ROM>; > + read-only; > + status = "disabled"; > + > + /* Bootloader */ > + firmware@00000 { > + reg = <0x00000 0xC200>; > + }; > + > + /* > + * config string as described in RISC-V > + * privileged spec 1.9 > + */ > + config-1-9@1c000 { > + reg = <0x1C000 0x1000>; > + }; > + > + /* > + * Device tree containing only registers, > + * interrupts, and cpus > + */ > + fdt@1d000 { > + reg = <0x1D000 0x2000>; > + }; > + > + /* CPU/ROM credits */ > + credits@1f000 { > + reg = <0x1F000 0x1000>; > + }; > + }; > + > + dvp0: camera@50430000 { > + compatible = "kendryte,k210-dvp"; > + reg = <0x50430000 0x100>; > + interrupts = <24>; > + clocks = <&sysclk K210_CLK_DVP>; > + resets = <&sysrst K210_RST_DVP>; > + kendryte,sysctl = <&sysctl>; > + kendryte,misc-offset = <K210_SYSCTL_MISC>; > + status = "disabled"; > + }; > + > + sysctl: syscon@50440000 { > + compatible = "kendryte,k210-sysctl", > + "syscon", "simple-mfd"; > + reg = <0x50440000 0x100>; > + reg-io-width = <4>; > + clocks = <&sysclk K210_CLK_APB1>; > + clock-names = "pclk"; > + > + sysclk: clock-controller { > + #clock-cells = <1>; > + compatible = "kendryte,k210-clk"; > + clocks = <&in0>; > + }; > + > + sysrst: reset-controller { > + compatible = "kendryte,k210-rst", > + "syscon-reset"; > + #reset-cells = <1>; > + regmap = <&sysctl>; > + offset = <K210_SYSCTL_PERI_RESET>; > + mask = <0x27FFFFFF>; > + assert-high = <1>; > + }; > + > + reboot { > + compatible = "syscon-reboot"; > + regmap = <&sysctl>; > + offset = <K210_SYSCTL_SOFT_RESET>; > + mask = <1>; > + value = <1>; > + }; > + }; > + > + aes0: aes@50450000 { > + compatible = "kendryte,k210-aes"; > + reg = <0x50450000 0x100>; > + clocks = <&sysclk K210_CLK_AES>; > + resets = <&sysrst K210_RST_AES>; > + status = "disabled"; > + }; > + > + rtc: rtc@50460000 { > + compatible = "kendryte,k210-rtc"; > + reg = <0x50460000 0x100>; > + clocks = <&in0>; > + resets = <&sysrst K210_RST_RTC>; > + interrupts = <20>; > + status = "disabled"; > + }; > + }; > + > + apb2: bus@52000000 { > + #address-cells = <1>; > + #size-cells = <1>; > + compatible = "kendryte,k210-apb", "simple-pm-bus"; > + ranges; > + clocks = <&sysclk K210_CLK_APB2>; > + > + spi0: spi@52000000 { > + #address-cells = <1>; > + #size-cells = <0>; > + compatible = "canaan,kendryte-k210-spi", > + "snps,dw-apb-ssi-4.01", > + "snps,dw-apb-ssi"; > + reg = <0x52000000 0x100>; > + interrupts = <1>; > + clocks = <&sysclk K210_CLK_SPI0>, > + <&sysclk K210_CLK_APB2>; > + clock-names = "ssi_clk", "pclk"; > + resets = <&sysrst K210_RST_SPI0>; > + reset-names = "spi"; > + spi-max-frequency = <25000000>; > + num-cs = <4>; > + reg-io-width = <4>; > + status = "disabled"; > + }; > + > + spi1: spi@53000000 { > + #address-cells = <1>; > + #size-cells = <0>; > + compatible = "canaan,kendryte-k210-spi", > + "snps,dw-apb-ssi-4.01", > + "snps,dw-apb-ssi"; > + reg = <0x53000000 0x100>; > + interrupts = <2>; > + clocks = <&sysclk K210_CLK_SPI1>, > + <&sysclk K210_CLK_APB2>; > + clock-names = "ssi_clk", "pclk"; > + resets = <&sysrst K210_RST_SPI1>; > + reset-names = "spi"; > + spi-max-frequency = <25000000>; > + num-cs = <4>; > + reg-io-width = <4>; > + status = "disabled"; > + }; > + > + spi3: spi@54000000 { > + #address-cells = <1>; > + #size-cells = <0>; > + compatible = "canaan,kendryte-k210-ssi", > + "snps,dwc-ssi-1.01a"; > + reg = <0x54000000 0x200>; > + interrupts = <4>; > + clocks = <&sysclk K210_CLK_SPI3>, > + <&sysclk K210_CLK_APB2>; > + clock-names = "ssi_clk", "pclk"; > + resets = <&sysrst K210_RST_SPI3>; > + reset-names = "spi"; > + /* Could possibly go up to 200 MHz */ > + spi-max-frequency = <100000000>; > + num-cs = <4>; > + reg-io-width = <4>; > + status = "disabled"; > + }; > }; > }; > }; > diff --git a/arch/riscv/boot/dts/kendryte/k210_generic.dts b/arch/riscv/boot/dts/kendryte/k210_generic.dts > new file mode 100644 > index 000000000000..f336f60dc15d > --- /dev/null > +++ b/arch/riscv/boot/dts/kendryte/k210_generic.dts > @@ -0,0 +1,46 @@ > +// SPDX-License-Identifier: GPL-2.0+ > +/* > + * Copyright (C) 2019-20 Sean Anderson <seanga2@gmail.com> > + * Copyright (C) 2020 Western Digital Corporation or its affiliates. > + */ > + > +/dts-v1/; > + > +#include "k210.dtsi" > + > +#include <dt-bindings/gpio/gpio.h> > +#include <dt-bindings/input/input.h> > + > +/ { > + model = "Kendryte K210 generic"; > + compatible = "kendryte,k210"; > + > + chosen { > + bootargs = "earlycon console=ttySIF0"; > + stdout-path = "serial0:115200n8"; > + }; > +}; > + > +&fpioa { > + pinctrl-0 = <&fpioa_jtag>; > + pinctrl-names = "default"; > + status = "okay"; > + > + fpioa_jtag: jtag { > + pinmux = <K210_FPIOA(0, K210_PCF_JTAG_TCLK)>, > + <K210_FPIOA(1, K210_PCF_JTAG_TDI)>, > + <K210_FPIOA(2, K210_PCF_JTAG_TMS)>, > + <K210_FPIOA(3, K210_PCF_JTAG_TDO)>; > + }; > + > + fpioa_uarths: uarths { > + pinmux = <K210_FPIOA(4, K210_PCF_UARTHS_RX)>, > + <K210_FPIOA(5, K210_PCF_UARTHS_TX)>; > + }; > +}; > + > +&uarths0 { > + pinctrl-0 = <&fpioa_uarths>; > + pinctrl-names = "default"; > + status = "okay"; > +}; > Reviewed-by: Sean Anderson <seanga2@gmail.com>
diff --git a/arch/riscv/Kconfig.socs b/arch/riscv/Kconfig.socs index 56ba82a64e18..9230af7fb763 100644 --- a/arch/riscv/Kconfig.socs +++ b/arch/riscv/Kconfig.socs @@ -59,7 +59,7 @@ config SOC_KENDRYTE_K210_DTB_SOURCE string "Source file for the Kendryte K210 builtin DTB" depends on SOC_KENDRYTE depends on SOC_KENDRYTE_K210_DTB_BUILTIN - default "k210" + default "k210_generic" help Base name (without suffix, relative to arch/riscv/boot/dts/kendryte) for the DTS file that will be used to produce the DTB linked into the diff --git a/arch/riscv/boot/dts/kendryte/k210.dts b/arch/riscv/boot/dts/kendryte/k210.dts deleted file mode 100644 index 0d1f28fce6b2..000000000000 --- a/arch/riscv/boot/dts/kendryte/k210.dts +++ /dev/null @@ -1,23 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0+ -/* - * Copyright (C) 2020 Western Digital Corporation or its affiliates. - */ - -/dts-v1/; - -#include "k210.dtsi" - -/ { - model = "Kendryte K210 generic"; - compatible = "kendryte,k210"; - - chosen { - bootargs = "earlycon console=ttySIF0"; - stdout-path = "serial0"; - }; -}; - -&uarths0 { - status = "okay"; -}; - diff --git a/arch/riscv/boot/dts/kendryte/k210.dtsi b/arch/riscv/boot/dts/kendryte/k210.dtsi index d2d0ff645632..b8706fe78b21 100644 --- a/arch/riscv/boot/dts/kendryte/k210.dtsi +++ b/arch/riscv/boot/dts/kendryte/k210.dtsi @@ -1,9 +1,12 @@ // SPDX-License-Identifier: GPL-2.0+ /* - * Copyright (C) 2019 Sean Anderson <seanga2@gmail.com> + * Copyright (C) 2019-20 Sean Anderson <seanga2@gmail.com> * Copyright (C) 2020 Western Digital Corporation or its affiliates. */ #include <dt-bindings/clock/k210-clk.h> +#include <dt-bindings/mfd/k210-sysctl.h> +#include <dt-bindings/pinctrl/k210-pinctrl.h> +#include <dt-bindings/reset/k210-rst.h> / { /* @@ -15,7 +18,26 @@ / { compatible = "kendryte,k210"; aliases { + cpu0 = &cpu0; + cpu1 = &cpu1; + dma0 = &dmac0; + gpio0 = &gpio0; + gpio1 = &gpio1_0; + i2c0 = &i2c0; + i2c1 = &i2c1; + i2c2 = &i2c2; + pinctrl0 = &fpioa; serial0 = &uarths0; + serial1 = &uart1; + serial2 = &uart2; + serial3 = &uart3; + spi0 = &spi0; + spi1 = &spi1; + spi2 = &spi2; + spi3 = &spi3; + timer0 = &timer0; + timer1 = &timer1; + timer2 = &timer2; }; /* @@ -30,16 +52,15 @@ cpus { timebase-frequency = <7800000>; cpu0: cpu@0 { device_type = "cpu"; - reg = <0>; compatible = "kendryte,k210", "sifive,rocket0", "riscv"; - riscv,isa = "rv64imafdc"; + reg = <0>; + riscv,isa = "rv64imafdgc"; mmu-type = "none"; - i-cache-size = <0x8000>; i-cache-block-size = <64>; - d-cache-size = <0x8000>; + i-cache-size = <0x8000>; d-cache-block-size = <64>; - clocks = <&sysctl K210_CLK_CPU>; - clock-frequency = <390000000>; + d-cache-size = <0x8000>; + clocks = <&sysclk K210_CLK_CPU>; cpu0_intc: interrupt-controller { #interrupt-cells = <1>; interrupt-controller; @@ -48,16 +69,15 @@ cpu0_intc: interrupt-controller { }; cpu1: cpu@1 { device_type = "cpu"; - reg = <1>; compatible = "kendryte,k210", "sifive,rocket0", "riscv"; - riscv,isa = "rv64imafdc"; + reg = <1>; + riscv,isa = "rv64imafdgc"; mmu-type = "none"; - i-cache-size = <0x8000>; i-cache-block-size = <64>; - d-cache-size = <0x8000>; + i-cache-size = <0x8000>; d-cache-block-size = <64>; - clocks = <&sysctl K210_CLK_CPU>; - clock-frequency = <390000000>; + d-cache-size = <0x8000>; + clocks = <&sysclk K210_CLK_CPU>; cpu1_intc: interrupt-controller { #interrupt-cells = <1>; interrupt-controller; @@ -68,14 +88,19 @@ cpu1_intc: interrupt-controller { sram: memory@80000000 { device_type = "memory"; + compatible = "kendryte,k210-sram"; reg = <0x80000000 0x400000>, <0x80400000 0x200000>, <0x80600000 0x200000>; reg-names = "sram0", "sram1", "aisram"; + clocks = <&sysclk K210_CLK_SRAM0>, + <&sysclk K210_CLK_SRAM1>, + <&sysclk K210_CLK_AI>; + clock-names = "sram0", "sram1", "aisram"; }; clocks { - in0: oscillator { + in0: osc { compatible = "fixed-clock"; #clock-cells = <0>; clock-frequency = <26000000>; @@ -89,28 +114,34 @@ soc { ranges; interrupt-parent = <&plic0>; - sysctl: sysctl@50440000 { - compatible = "kendryte,k210-sysctl", "simple-mfd"; - reg = <0x50440000 0x1000>; - #clock-cells = <1>; + debug0: debug@0 { + compatible = "kendryte,k210-debug", "riscv,debug"; + reg = <0x0 0x1000>; + status = "disabled"; + }; + + rom0: nvmem@1000 { + reg = <0x1000 0x1000>; + read-only; + status = "disabled"; }; clint0: clint@2000000 { #interrupt-cells = <1>; - compatible = "riscv,clint0"; + compatible = "kendryte,k210-clint", "riscv,clint0"; reg = <0x2000000 0xC000>; - interrupts-extended = <&cpu0_intc 3 &cpu0_intc 7 - &cpu1_intc 3 &cpu1_intc 7>; - clocks = <&sysctl K210_CLK_ACLK>; + interrupts-extended = <&cpu0_intc 3>, <&cpu0_intc 7>, + <&cpu1_intc 3>, <&cpu1_intc 7>; + clocks = <&sysclk K210_CLK_CLINT>; }; - plic0: interrupt-controller@c000000 { + plic0: interrupt-controller@C000000 { #interrupt-cells = <1>; - interrupt-controller; - compatible = "kendryte,k210-plic0", "riscv,plic0"; + compatible = "kendryte,k210-plic", "riscv,plic0"; reg = <0xC000000 0x4000000>; - interrupts-extended = <&cpu0_intc 11>, <&cpu0_intc 0xffffffff>, - <&cpu1_intc 11>, <&cpu1_intc 0xffffffff>; + interrupt-controller; + interrupts-extended = <&cpu0_intc 11>, + <&cpu1_intc 11>; riscv,ndev = <65>; riscv,max-priority = <7>; }; @@ -119,7 +150,484 @@ uarths0: serial@38000000 { compatible = "kendryte,k210-uarths", "sifive,uart0"; reg = <0x38000000 0x1000>; interrupts = <33>; - clocks = <&sysctl K210_CLK_CPU>; + clocks = <&sysclk K210_CLK_CPU>; + status = "disabled"; + }; + + gpio0: gpio-controller@38001000 { + #interrupt-cells = <2>; + #gpio-cells = <2>; + compatible = "kendryte,k210-gpiohs", "sifive,gpio0"; + reg = <0x38001000 0x1000>; + interrupt-controller; + interrupts = <34 35 36 37 38 39 40 41 + 42 43 44 45 46 47 48 49 + 50 51 52 53 54 55 56 57 + 58 59 60 61 62 63 64 65>; + gpio-controller; + ngpios = <32>; + status = "disabled"; + }; + + kpu0: kpu@40800000 { + compatible = "kendryte,k210-kpu"; + reg = <0x40800000 0xc00000>; + interrupts = <25>; + clocks = <&sysclk K210_CLK_AI>; + status = "disabled"; + }; + + fft0: fft@42000000 { + compatible = "kendryte,k210-fft"; + reg = <0x42000000 0x400000>; + interrupts = <26>; + clocks = <&sysclk K210_CLK_FFT>; + resets = <&sysrst K210_RST_FFT>; + status = "disabled"; + }; + + dmac0: dma-controller@50000000 { + compatible = "kendryte,k210-dmac", "snps,axi-dma-1.01a"; + reg = <0x50000000 0x1000>; + interrupts = <27 28 29 30 31 32>; + clocks = <&sysclk K210_CLK_DMA>, <&sysclk K210_CLK_DMA>; + clock-names = "core-clk", "cfgr-clk"; + resets = <&sysrst K210_RST_DMA>; + dma-channels = <6>; + snps,dma-masters = <2>; + snps,priority = <0 1 2 3 4 5>; + snps,data-width = <5>; + snps,block-size = <0x200000 0x200000 0x200000 + 0x200000 0x200000 0x200000>; + snps,axi-max-burst-len = <256>; + status = "disabled"; + }; + + apb0: bus@50200000 { + #address-cells = <1>; + #size-cells = <1>; + compatible = "kendryte,k210-apb", "simple-pm-bus"; + ranges; + clocks = <&sysclk K210_CLK_APB0>; + + gpio1: gpio-controller@50200000 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "kendryte,k210-gpio", + "snps,dw-apb-gpio"; + reg = <0x50200000 0x80>; + clocks = <&sysclk K210_CLK_APB0>, + <&sysclk K210_CLK_GPIO>; + clock-names = "bus", "db"; + resets = <&sysrst K210_RST_GPIO>; + status = "disabled"; + + gpio1_0: gpio1@0 { + #gpio-cells = <2>; + #interrupt-cells = <2>; + compatible = "snps,dw-apb-gpio-port"; + reg = <0>; + interrupt-controller; + interrupts = <23>; + gpio-controller; + snps,nr-gpios = <8>; + }; + }; + + uart1: serial@50210000 { + compatible = "kendryte,k210-uart", + "snps,dw-apb-uart"; + reg = <0x50210000 0x100>; + interrupts = <11>; + clocks = <&sysclk K210_CLK_UART1>, + <&sysclk K210_CLK_APB0>; + clock-names = "baudclk", "apb_pclk"; + resets = <&sysrst K210_RST_UART1>; + reg-io-width = <4>; + reg-shift = <2>; + dcd-override; + dsr-override; + cts-override; + ri-override; + status = "disabled"; + }; + + uart2: serial@50220000 { + compatible = "kendryte,k210-uart", + "snps,dw-apb-uart"; + reg = <0x50220000 0x100>; + interrupts = <12>; + clocks = <&sysclk K210_CLK_UART2>, + <&sysclk K210_CLK_APB0>; + clock-names = "baudclk", "apb_pclk"; + resets = <&sysrst K210_RST_UART2>; + reg-io-width = <4>; + reg-shift = <2>; + dcd-override; + dsr-override; + cts-override; + ri-override; + status = "disabled"; + }; + + uart3: serial@50230000 { + compatible = "kendryte,k210-uart", + "snps,dw-apb-uart"; + reg = <0x50230000 0x100>; + interrupts = <13>; + clocks = <&sysclk K210_CLK_UART3>, + <&sysclk K210_CLK_APB0>; + clock-names = "baudclk", "apb_pclk"; + resets = <&sysrst K210_RST_UART3>; + reg-io-width = <4>; + reg-shift = <2>; + dcd-override; + dsr-override; + cts-override; + ri-override; + status = "disabled"; + }; + + spi2: spi@50240000 { + compatible = "canaan,kendryte-k210-spi", + "snps,dw-apb-ssi-4.01", + "snps,dw-apb-ssi"; + spi-slave; + reg = <0x50240000 0x100>; + interrupts = <3>; + clocks = <&sysclk K210_CLK_SPI2>, + <&sysclk K210_CLK_APB0>; + clock-names = "ssi_clk", "pclk"; + resets = <&sysrst K210_RST_SPI2>; + spi-max-frequency = <25000000>; + status = "disabled"; + }; + + i2s0: i2s@50250000 { + compatible = "kendryte,k210-i2s", + "snps,designware-i2s"; + reg = <0x50250000 0x200>; + interrupts = <5>; + clocks = <&sysclk K210_CLK_I2S0>; + clock-names = "i2sclk"; + resets = <&sysrst K210_RST_I2S0>; + status = "disabled"; + }; + + apu0: sound@520250200 { + compatible = "kendryte,k210-apu"; + reg = <0x50250200 0x200>; + status = "disabled"; + }; + + i2s1: i2s@50260000 { + compatible = "kendryte,k210-i2s", + "snps,designware-i2s"; + reg = <0x50260000 0x200>; + interrupts = <6>; + clocks = <&sysclk K210_CLK_I2S1>; + clock-names = "i2sclk"; + resets = <&sysrst K210_RST_I2S1>; + status = "disabled"; + }; + + i2s2: i2s@50270000 { + compatible = "kendryte,k210-i2s", + "snps,designware-i2s"; + reg = <0x50270000 0x200>; + interrupts = <7>; + clocks = <&sysclk K210_CLK_I2S2>; + clock-names = "i2sclk"; + resets = <&sysrst K210_RST_I2S2>; + status = "disabled"; + }; + + i2c0: i2c@50280000 { + compatible = "kendryte,k210-i2c", + "snps,designware-i2c"; + reg = <0x50280000 0x100>; + interrupts = <8>; + clocks = <&sysclk K210_CLK_I2C0>, + <&sysclk K210_CLK_APB0>; + clock-names = "ref", "pclk"; + resets = <&sysrst K210_RST_I2C0>; + status = "disabled"; + }; + + i2c1: i2c@50290000 { + compatible = "kendryte,k210-i2c", + "snps,designware-i2c"; + reg = <0x50290000 0x100>; + interrupts = <9>; + clocks = <&sysclk K210_CLK_I2C1>, + <&sysclk K210_CLK_APB0>; + clock-names = "ref", "pclk"; + resets = <&sysrst K210_RST_I2C1>; + status = "disabled"; + }; + + i2c2: i2c@502A0000 { + compatible = "kendryte,k210-i2c", + "snps,designware-i2c"; + reg = <0x502A0000 0x100>; + interrupts = <10>; + clocks = <&sysclk K210_CLK_I2C2>, + <&sysclk K210_CLK_APB0>; + clock-names = "ref", "pclk"; + resets = <&sysrst K210_RST_I2C2>; + status = "disabled"; + }; + + fpioa: pinmux@502B0000 { + compatible = "kendryte,k210-fpioa"; + reg = <0x502B0000 0x100>; + clocks = <&sysclk K210_CLK_FPIOA>, + <&sysclk K210_CLK_APB0>; + clock-names = "ref", "pclk"; + resets = <&sysrst K210_RST_FPIOA>; + kendryte,sysctl = <&sysctl>; + kendryte,power-offset = <K210_SYSCTL_POWER_SEL>; + status = "disabled"; + }; + + sha256: sha256@502C0000 { + compatible = "kendryte,k210-sha256"; + reg = <0x502C0000 0x100>; + clocks = <&sysclk K210_CLK_SHA>; + resets = <&sysrst K210_RST_SHA>; + status = "disabled"; + }; + + timer0: timer@502D0000 { + compatible = "kendryte,k210-timer", + "snps,dw-apb-timer"; + reg = <0x502D0000 0x100>; + interrupts = <14 15>; + clocks = <&sysclk K210_CLK_TIMER0>, + <&sysclk K210_CLK_APB0>; + clock-names = "timer", "pclk"; + resets = <&sysrst K210_RST_TIMER0>; + status = "disabled"; + }; + + timer1: timer@502E0000 { + compatible = "kendryte,k210-timer", + "snps,dw-apb-timer"; + reg = <0x502E0000 0x100>; + interrupts = <16 17>; + clocks = <&sysclk K210_CLK_TIMER1>, + <&sysclk K210_CLK_APB0>; + clock-names = "timer", "pclk"; + resets = <&sysrst K210_RST_TIMER1>; + status = "disabled"; + }; + + timer2: timer@502F0000 { + compatible = "kendryte,k210-timer", + "snps,dw-apb-timer"; + reg = <0x502F0000 0x100>; + interrupts = <18 19>; + clocks = <&sysclk K210_CLK_TIMER2>, + <&sysclk K210_CLK_APB0>; + clock-names = "timer", "pclk"; + resets = <&sysrst K210_RST_TIMER2>; + status = "disabled"; + }; + }; + + apb1: bus@50400000 { + #address-cells = <1>; + #size-cells = <1>; + compatible = "kendryte,k210-apb", "simple-pm-bus"; + ranges; + clocks = <&sysclk K210_CLK_APB1>; + + wdt0: watchdog@50400000 { + compatible = "kendryte,k210-wdt", "snps,dw-wdt"; + reg = <0x50400000 0x100>; + interrupts = <21>; + clocks = <&sysclk K210_CLK_WDT0>, + <&sysclk K210_CLK_APB1>; + clock-names = "tclk", "pclk"; + resets = <&sysrst K210_RST_WDT0>; + status = "disabled"; + }; + + wdt1: watchdog@50410000 { + compatible = "kendryte,k210-wdt", "snps,dw-wdt"; + reg = <0x50410000 0x100>; + interrupts = <22>; + clocks = <&sysclk K210_CLK_WDT1>, + <&sysclk K210_CLK_APB1>; + clock-names = "tclk", "pclk"; + resets = <&sysrst K210_RST_WDT1>; + status = "disabled"; + }; + + otp0: nvmem@50420000 { + #address-cells = <1>; + #size-cells = <1>; + compatible = "kendryte,k210-otp"; + reg = <0x50420000 0x100>, + <0x88000000 0x20000>; + reg-names = "reg", "mem"; + clocks = <&sysclk K210_CLK_ROM>; + resets = <&sysrst K210_RST_ROM>; + read-only; + status = "disabled"; + + /* Bootloader */ + firmware@00000 { + reg = <0x00000 0xC200>; + }; + + /* + * config string as described in RISC-V + * privileged spec 1.9 + */ + config-1-9@1c000 { + reg = <0x1C000 0x1000>; + }; + + /* + * Device tree containing only registers, + * interrupts, and cpus + */ + fdt@1d000 { + reg = <0x1D000 0x2000>; + }; + + /* CPU/ROM credits */ + credits@1f000 { + reg = <0x1F000 0x1000>; + }; + }; + + dvp0: camera@50430000 { + compatible = "kendryte,k210-dvp"; + reg = <0x50430000 0x100>; + interrupts = <24>; + clocks = <&sysclk K210_CLK_DVP>; + resets = <&sysrst K210_RST_DVP>; + kendryte,sysctl = <&sysctl>; + kendryte,misc-offset = <K210_SYSCTL_MISC>; + status = "disabled"; + }; + + sysctl: syscon@50440000 { + compatible = "kendryte,k210-sysctl", + "syscon", "simple-mfd"; + reg = <0x50440000 0x100>; + reg-io-width = <4>; + clocks = <&sysclk K210_CLK_APB1>; + clock-names = "pclk"; + + sysclk: clock-controller { + #clock-cells = <1>; + compatible = "kendryte,k210-clk"; + clocks = <&in0>; + }; + + sysrst: reset-controller { + compatible = "kendryte,k210-rst", + "syscon-reset"; + #reset-cells = <1>; + regmap = <&sysctl>; + offset = <K210_SYSCTL_PERI_RESET>; + mask = <0x27FFFFFF>; + assert-high = <1>; + }; + + reboot { + compatible = "syscon-reboot"; + regmap = <&sysctl>; + offset = <K210_SYSCTL_SOFT_RESET>; + mask = <1>; + value = <1>; + }; + }; + + aes0: aes@50450000 { + compatible = "kendryte,k210-aes"; + reg = <0x50450000 0x100>; + clocks = <&sysclk K210_CLK_AES>; + resets = <&sysrst K210_RST_AES>; + status = "disabled"; + }; + + rtc: rtc@50460000 { + compatible = "kendryte,k210-rtc"; + reg = <0x50460000 0x100>; + clocks = <&in0>; + resets = <&sysrst K210_RST_RTC>; + interrupts = <20>; + status = "disabled"; + }; + }; + + apb2: bus@52000000 { + #address-cells = <1>; + #size-cells = <1>; + compatible = "kendryte,k210-apb", "simple-pm-bus"; + ranges; + clocks = <&sysclk K210_CLK_APB2>; + + spi0: spi@52000000 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "canaan,kendryte-k210-spi", + "snps,dw-apb-ssi-4.01", + "snps,dw-apb-ssi"; + reg = <0x52000000 0x100>; + interrupts = <1>; + clocks = <&sysclk K210_CLK_SPI0>, + <&sysclk K210_CLK_APB2>; + clock-names = "ssi_clk", "pclk"; + resets = <&sysrst K210_RST_SPI0>; + reset-names = "spi"; + spi-max-frequency = <25000000>; + num-cs = <4>; + reg-io-width = <4>; + status = "disabled"; + }; + + spi1: spi@53000000 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "canaan,kendryte-k210-spi", + "snps,dw-apb-ssi-4.01", + "snps,dw-apb-ssi"; + reg = <0x53000000 0x100>; + interrupts = <2>; + clocks = <&sysclk K210_CLK_SPI1>, + <&sysclk K210_CLK_APB2>; + clock-names = "ssi_clk", "pclk"; + resets = <&sysrst K210_RST_SPI1>; + reset-names = "spi"; + spi-max-frequency = <25000000>; + num-cs = <4>; + reg-io-width = <4>; + status = "disabled"; + }; + + spi3: spi@54000000 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "canaan,kendryte-k210-ssi", + "snps,dwc-ssi-1.01a"; + reg = <0x54000000 0x200>; + interrupts = <4>; + clocks = <&sysclk K210_CLK_SPI3>, + <&sysclk K210_CLK_APB2>; + clock-names = "ssi_clk", "pclk"; + resets = <&sysrst K210_RST_SPI3>; + reset-names = "spi"; + /* Could possibly go up to 200 MHz */ + spi-max-frequency = <100000000>; + num-cs = <4>; + reg-io-width = <4>; + status = "disabled"; + }; }; }; }; diff --git a/arch/riscv/boot/dts/kendryte/k210_generic.dts b/arch/riscv/boot/dts/kendryte/k210_generic.dts new file mode 100644 index 000000000000..f336f60dc15d --- /dev/null +++ b/arch/riscv/boot/dts/kendryte/k210_generic.dts @@ -0,0 +1,46 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2019-20 Sean Anderson <seanga2@gmail.com> + * Copyright (C) 2020 Western Digital Corporation or its affiliates. + */ + +/dts-v1/; + +#include "k210.dtsi" + +#include <dt-bindings/gpio/gpio.h> +#include <dt-bindings/input/input.h> + +/ { + model = "Kendryte K210 generic"; + compatible = "kendryte,k210"; + + chosen { + bootargs = "earlycon console=ttySIF0"; + stdout-path = "serial0:115200n8"; + }; +}; + +&fpioa { + pinctrl-0 = <&fpioa_jtag>; + pinctrl-names = "default"; + status = "okay"; + + fpioa_jtag: jtag { + pinmux = <K210_FPIOA(0, K210_PCF_JTAG_TCLK)>, + <K210_FPIOA(1, K210_PCF_JTAG_TDI)>, + <K210_FPIOA(2, K210_PCF_JTAG_TMS)>, + <K210_FPIOA(3, K210_PCF_JTAG_TDO)>; + }; + + fpioa_uarths: uarths { + pinmux = <K210_FPIOA(4, K210_PCF_UARTHS_RX)>, + <K210_FPIOA(5, K210_PCF_UARTHS_TX)>; + }; +}; + +&uarths0 { + pinctrl-0 = <&fpioa_uarths>; + pinctrl-names = "default"; + status = "okay"; +};
Update the Kendryte K210 base device tree k210.dtsi to define all peripherals of the SoC, their clocks and reset lines. The device tree file k210.dts is renamed to k210_generic.dts and becomes the default dwivalue selection of the SOC_KENDRYTE_K210_DTB_BUILTIN_SOURCE configuration option. No device beside the serial console is defined by this device tree. This makes it suitable for all known K210 boards using a builtin initramfs. Most updates to the k210.dtsi file come from Sean Anderson's work on U-Boot support for the Kendryte K210. Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com> --- arch/riscv/Kconfig.socs | 2 +- arch/riscv/boot/dts/kendryte/k210.dts | 23 - arch/riscv/boot/dts/kendryte/k210.dtsi | 564 +++++++++++++++++- arch/riscv/boot/dts/kendryte/k210_generic.dts | 46 ++ 4 files changed, 583 insertions(+), 52 deletions(-) delete mode 100644 arch/riscv/boot/dts/kendryte/k210.dts create mode 100644 arch/riscv/boot/dts/kendryte/k210_generic.dts