Re: [RFC v2 2/2] arm: hisi: enable Hi3521a soc

From: Marty E. Plummer
Date: Tue May 03 2022 - 09:45:15 EST

On Tue, May 03, 2022 at 01:47:01PM +0200, Krzysztof Kozlowski wrote:
> On 01/05/2022 19:34, Marty E. Plummer wrote:
> > Enable Hisilicon Hi3521A/Hi3520DCV300 SoC. This SoC series includes
> > hardware mutlimedia codec cores, commonly used in consumer cctv/dvr
> > security systems and ipcameras. The arm core is a Cortex A7.
> >
> > Add hi3521a.dtsi and hi3521a-rs-dm290e.dts for RaySharp CCTV systems,
> > marketed under the name Samsung SDR-B74301N.
>
> Thank you for your patch. There is something to discuss/improve.
>
> >
> > Signed-off-by: Marty E. Plummer <hanetzer@xxxxxxxxxxxxx>
> > ---
> > arch/arm/boot/dts/Makefile | 2 +
> > arch/arm/boot/dts/hi3521a-rs-dm290e.dts | 134 ++++++++
> > arch/arm/boot/dts/hi3521a.dtsi | 423 ++++++++++++++++++++++++
>
> DTSes go to separate patches.
Do you mean dts and dtsi need to be separate patches?
>
> > arch/arm/mach-hisi/Kconfig | 9 +
> > 4 files changed, 568 insertions(+)
> > create mode 100644 arch/arm/boot/dts/hi3521a-rs-dm290e.dts
> > create mode 100644 arch/arm/boot/dts/hi3521a.dtsi
> >
> > diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
> > index 7c16f8a2b738..535cef3b14ab 100644
> > --- a/arch/arm/boot/dts/Makefile
> > +++ b/arch/arm/boot/dts/Makefile
> > @@ -242,6 +242,8 @@ dtb-$(CONFIG_ARCH_GEMINI) += \
> > gemini-ssi1328.dtb \
> > gemini-wbd111.dtb \
> > gemini-wbd222.dtb
> > +dtb-$(CONFIG_ARCH_HI3521A) += \
> > + hi3521a-rs-dm290e.dtb
> > dtb-$(CONFIG_ARCH_HI3xxx) += \
> > hi3620-hi4511.dtb
> > dtb-$(CONFIG_ARCH_HIGHBANK) += \
> > diff --git a/arch/arm/boot/dts/hi3521a-rs-dm290e.dts b/arch/arm/boot/dts/hi3521a-rs-dm290e.dts
> > new file mode 100644
> > index 000000000000..b24fcf2ca85e
> > --- /dev/null
> > +++ b/arch/arm/boot/dts/hi3521a-rs-dm290e.dts
> > @@ -0,0 +1,134 @@
> > +// SPDX-License-Identifier: GPL-2.0-or-later
> > +/*
> > + * Copyright (C) 2017-2022 Marty Plummer <hanetzer@xxxxxxxxxxxxx>
> > + */
> > +
> > +#include "hi3521a.dtsi"
> > +
> > +/ {
> > + model = "RaySharp RS-DM-290E DVR Board";
> > + compatible = "raysharp,rs-dm-290e", "hisilicon,hi3521a";
>
> Please run checkpatch and fix the warnings.
>
sunova. I could have sworn I had my editor setup right for whitespace
and such.
> > +
> > + aliases {
> > + serial0 = &uart0;
> > + serial1 = &uart1;
> > + serial2 = &uart2;
> > + };
> > +
> > + chosen {
> > + stdout-path = "serial0:115200n8";
> > + };
> > +
> > + memory@800000000 {
> > + device_type = "memory";
> > + reg = <0x80000000 0xf00000>;
> > + };
> > +};
> > +
> > +&hi_sfc {
> > + status = "okay";
> > + spi-nor@0 {
>
> Looks like wrong node name. You need to run "dtbs_check" and fix
> warnings related to your DTS.
>
Ah, that's a good thing to know. dt-doc-validate isn't found, doesn't
seem packaged for gentoo either. I'll see about that asap.
> > + // compatible = "jedec,spi-nor";
>
> No dead code in Linux kernel. Commented out stuff sometimes is okay if
> it is explained with comments.
>
As mentioned in the title, just an RFC, not final.
> > + compatible = "macronix,mx25l25635e", "jedec,spi-nor";
> > + reg = <0>;
> > + spi-max-frequency = <150000000>;
> > + // spi-rx-bus-width = <1>;
> > + // spi-tx-bus-width = <1>;
> > + // m25p,default-addr-width = <4>;
> > + // spi-max-frequency = <160000000>;
>
> No dead code.
>
> > + m25p,fast-read;
> > +
> > + partitions {
> > + compatible = "fixed-partitions";
> > + #address-cells = <1>;
> > + #size-cells = <1>;
> > +
> > + u-boot@0 {
> > + label = "u-boot";
> > + reg = <0x0 0x50000>;
> > + read-only;
> > + };
> > + u-boot-env@50000 {
> > + label = "u-boot-env";
> > + reg = <0x50000 0x20000>;
> > + };
> > + kernel@70000 {
> > + label = "kernel";
> > + reg = <0x70000 0x700000>;
> > + };
> > + rootfs@770000 {
> > + label = "rootfs";
> > + reg = <0x800000 0x300000>;
> > + read-only;
> > + };
> > + extra@b00000 {
> > + label = "extra";
> > + reg = <0xb00000 0x1500000>;
> > + };
> > + };
> > + };
> > +};
> > +
> > +&dual_timer0 {
> > + status = "okay";
> > +};
> > +
> > +&uart0 {
> > + pinctrl-names = "default";
> > + pinctrl-0 = <&uart0_pmx_func &uart0_cfg_func>;
> > + status = "okay";
> > +};
> > +
> > +&pmx0 {
> > + pinctrl-names = "default";
> > + pinctrl-0 = <&sfc_pmx_func>;
> > + uart0_pmx_func: uart0_pmx_func {
> > + pinctrl-single,pins = <
> > + 0x00e8 0x0
> > + 0x00ec 0x0
> > + >;
> > + };
> > +
> > + sfc_pmx_func: sfc_pmx_func {
> > + pinctrl-single,pins = <
> > + 0x00c4 0x1
> > + 0x00c8 0x1
> > + 0x00cc 0x1
> > + 0x00d0 0x1
> > + 0x00d4 0x1
> > + >;
> > + };
> > +};
> > +
> > +&pmx1 {
> > + pinctrl-names = "default";
> > + pinctrl-0 = <&sfc_cfg_func>;
> > + uart0_cfg_func: uart0_cfg_func {
> > + pinctrl-single,pins = <
> > + 0x00e8 0x0
> > + 0x00ec 0x0
> > + >;
> > + };
>
> Blank line
>
> > + sfc_cfg_func: sfc_cfg_func {
> > + pinctrl-single,pins = <
> > + 0x00c4 0x58
> > + 0x00c8 0x28
> > + 0x00cc 0x38
> > + 0x00d0 0x38
> > + 0x00d4 0x38
> > + >;
> > + };
> > +};
> > +
> > +/* &gmac0 { */
> > +/* #address-cells = <1>; */
> > +/* #size-cells = <0>; */
> > +/* phy-handle = <&phy3>; */
> > +/* phy-mode = "rgmii"; */
> > +/* mac-address = [00 00 00 00 00 00]; */
> > +/* status = "okay"; */
> > +/**/
> > +/* phy3: ethernet-phy@3 { */
> > +/* reg = <3>; */
> > +/* }; */
> > +/* }; */
>
>
> ? What's this?
>
ethernet port. its giving me a bit of trouble at the moment, but it does
work and has a phy at 3.
> > diff --git a/arch/arm/boot/dts/hi3521a.dtsi b/arch/arm/boot/dts/hi3521a.dtsi
> > new file mode 100644
> > index 000000000000..53993a32fd5d
> > --- /dev/null
> > +++ b/arch/arm/boot/dts/hi3521a.dtsi
> > @@ -0,0 +1,423 @@
> > +// SPDX-License-Identifier: GPL-2.0-or-later
> > +/*
> > + * Copyright (C) 2017-2022 Marty Plummer <hanetzer@xxxxxxxxxxxxx>
> > + */
> > +
> > +#include <dt-bindings/clock/hi3521a-clock.h>
> > +#include <dt-bindings/interrupt-controller/arm-gic.h>
> > +/dts-v1/;
>
> Blank line.
>
> > +/ {
> > + #address-cells = <1>;
> > + #size-cells = <1>;
> > +
> > + cpus {
> > + #address-cells = <1>;
> > + #size-cells = <0>;
> > +
> > + cpu0: cpu@0 {
> > + device_type = "cpu";
> > + compatible = "arm,cortex-a7";
> > + reg = <0>;
> > + clock-frequency = <1100000000>;
> > + };
> > + };
> > +
> > + timer {
> > + compatible = "arm,armv7-timer";
> > + interrupt-parent = <&gic>;
> > + interrupts = <GIC_PPI 13 0xf08>,
> > + <GIC_PPI 14 0xf08>,
> > + <GIC_PPI 11 0xf08>,
> > + <GIC_PPI 10 0xf08>;
>
> Use macros for these interrupts.
>
moot point, turns out enabling this timer is causing the system to lock
up. Something's weird there.
> > + clock-frequency = <24000000>;
> > + };
> > +
> > + pmu {
> > + compatible = "arm,cortex-a7-pmu";
> > + interrupt-parent = <&gic>;
> > + interrupts = <GIC_SPI 54 IRQ_TYPE_LEVEL_HIGH>;
> > + };
> > +
> > + gic: interrupt-controller@10301000 {
> > + compatible = "arm,pl390";
> > + #interrupt-cells = <3>;
> > + interrupt-controller;
> > + reg = <0x10301000 0x1000>, <0x10302000 0x1000>;
>
> Put reg just after compatible. This applies to each other node as well
> (if it comes with reg).
>
Ah gotcha.
> > + };
> > +
> > + xtal24m: xtal24m {
>
> Generic node names, so one of: "clock-0" "clock-xtal24m"
>
Will do.
> > + compatible = "fixed-clock";
> > + #clock-cells = <0>;
> > + clock-frequency = <24000000>;
>
> This does not look like property of the SoC, so should be defined by boards.
>
SoC requires a 24Mhz osc (and a 32khz one as well), so it'll always be
present regardless.
> > + };
> > +
> > + clk_3m: clk_3m {
>
> No underscores in node names, generic node name (see above).
>
early debugging clock, will be removed.
> > + compatible = "fixed-clock";
> > + #clock-cells = <0>;
> > + clock-frequency = <3000000>;
>
> This does not look like property of the SoC, so should be defined by boards.
>
> > + };
> > +
> > + soc {
> > + #address-cells = <1>;
> > + #size-cells = <1>;
> > + compatible = "simple-bus";
> > + interrupt-parent = <&gic>;
> > + ranges;
> > +
> > + hi_sfc: spi@10000000 {
> > + compatible = "hisilicon,hi3521a-spi-nor", "hisilicon,fmc-spi-nor";
> > + #address-cells = <1>;
> > + #size-cells = <0>;
> > + reg = <0x10000000 0x1000>, <0x14000000 0x10000>;
> > + reg-names = "control", "memory";
> > + clocks = <&crg HI3521A_FMC_CLK>;
> > + interrupts = <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>;
> > + status = "disabled";
> > + };
> > +
> > + /* usb0: usb@10030000 { */
> > + /* compatible = "generic-ohci"; */
> > + /* reg = <0x10030000 0x1000>; */
> > + /* interrupts = <GIC_SPI 50 IRQ_TYPE_LEVEL_HIGH>; */
> > + /* clocks = <&crg > */
> > + /* }; */
>
> No dead code please.
>
> > + dmac: dma-controller@10060000 {
> > + compatible = "arm,pl080", "arm,primecell";
> > + arm,primecell-periphid = <0x00041080>;
> > + reg = <0x10060000 0x1000>;
> > + interrupts = <GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>;
> > + clocks = <&crg HI3521A_DMAC_CLK>;
> > + clock-names = "apb_pclk";
> > + lli-bus-interface-ahb1;
> > + lli-bus-interface-ahb2;
> > + mem-bus-interface-ahb1;
> > + mem-bus-interface-ahb2;
> > + memcpy-burst-size = <256>;
> > + memcpy-bus-width = <32>;
> > + #dma-cells = <2>;
> > + status = "okay";
>
> No need for status okay, it's by default.
>
ah, good to know.
> > + };
> > +
> > + gmac0: ethernet@100a0000 {
> > + compatible = "hisilicon,hisi-gmac-v1";
> > + reg = <0x100a0000 0x1000>, <0x1204008c 0x4>;
> > + interrupts = <GIC_SPI 16 IRQ_TYPE_LEVEL_HIGH>;
> > + clocks = <&crg HI3521A_ETH_CLK>, <&crg HI3521A_ETH_MACIF_CLK>;
> > + clock-names = "mac_core", "mac_ifc";
> > + /* resets = <&crg 0x78 0>, <&crg 0x78 2>, <&crg 0x78 5>; */
> > + /* reset-names = "mac_core", "mac_ifc", "phy"; */
> > + /* hisilicon,phy-reset-delays-us = <10000 10000 30000>; */
>
> No dead code.
>
> > + status = "disabled";
> > + };
> > +
> > + dual_timer0: timer@12000000 {
> > + compatible = "arm,sp804", "arm,primecell";
> > + interrupts = <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>,
> > + <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>;
>
> A bit weird interrupts... the same?
>
Yes, though I am aware that some sp804 timers do have a separate
interrupts per pair.
> > + reg = <0x12000000 0x1000>;
> > + clocks = <&sysctrl HI3521A_TIMER0_CLK>,
> > + <&sysctrl HI3521A_TIMER1_CLK>,
> > + <&crg HI3521A_APB_CLK>;
> > + clock-names = "timer0clk", "timer1clk", "apb_pclk";
> > + status = "disabled";
> > + };
> > +
> > + dual_timer1: timer@12010000 {
> > + compatible = "arm,sp804", "arm,primecell";
> > + interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>,
> > + <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>;
> > + reg = <0x12010000 0x1000>;
> > + clocks = <&sysctrl HI3521A_TIMER2_CLK>,
> > + <&sysctrl HI3521A_TIMER3_CLK>,
> > + <&crg HI3521A_APB_CLK>;
> > + clock-names = "timer0clk", "timer1clk", "apb_pclk";
> > + status = "disabled";
> > + };
> > +
> > + dual_timer2: timer@12020000 {
> > + compatible = "arm,sp804", "arm,primecell";
> > + interrupts = <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>,
> > + <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>;
> > + reg = <0x12020000 0x1000>;
> > + clocks = <&sysctrl HI3521A_TIMER4_CLK>,
> > + <&sysctrl HI3521A_TIMER5_CLK>,
> > + <&crg HI3521A_APB_CLK>;
> > + clock-names = "timer0clk", "timer1clk", "apb_pclk";
> > + status = "disabled";
> > + };
> > +
> > + dual_timer3: timer@12030000 {
> > + compatible = "arm,sp804", "arm,primecell";
> > + interrupts = <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>,
> > + <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>;
> > + reg = <0x12030000 0x1000>;
> > + clocks = <&sysctrl HI3521A_TIMER6_CLK>,
> > + <&sysctrl HI3521A_TIMER7_CLK>,
> > + <&crg HI3521A_APB_CLK>;
> > + clock-names = "timer0clk", "timer1clk", "apb_pclk";
> > + status = "disabled";
> > + };
> > +
> > + crg: clock-reset-controller@12040000 {
> > + compatible = "hisilicon,hi3521a-crg";
>
> Undocumented compatible. Didn't checkpatch warn about it?
>
As mentioned, RFC. I'm more concerned with getting it to work consistently
at the moment.
> > + #clock-cells = <1>;
> > + #reset-cells = <2>;
> > + reg = <0x12040000 0x1000>;
> > + };
> > +
> > + sysctrl: system-controller@12050000 {
> > + compatible = "hisilicon,hi3521a-sysctrl", "syscon";
>
> Same.
>
> > + reg = <0x12050000 0x1000>;
> > + #clock-cells = <1>;
> > + #reset-cells = <2>;
> > + };
> > +
> > + reboot {
> > + compatible = "syscon-reboot";
> > + regmap = <&sysctrl>;
> > + offset = <0x4>;
> > + mask = <0xdeadbeef>;
> > + };
> > +
> > + wdt0: watchdog@12070000 {
> > + compatible = "arm,sp805", "arm,primecell";
> > + arm,primecell-periphid = <0x00141805>;
> > + reg = <0x12070000 0x1000>;
> > + interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>;
> > + clocks = <&crg HI3521A_FIXED_3M>;
> > + clock-names = "apb_pclk";
> > + };
> > +
> > + uart0: serial@12080000 {
> > + compatible = "arm,pl011", "arm,primecell";
> > + reg = <0x12080000 0x1000>;
> > + interrupts = <GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>;
> > + clocks = <&crg HI3521A_UART0_CLK>, <&crg HI3521A_UART0_CLK>;
> > + clock-names = "uartclk", "apb_pclk";
> > + dmas = <&dmac 0 1>, <&dmac 1 2>;
> > + dma-names = "rx", "tx";
> > + status = "disabled";
> > + };
> > +
> > + uart1: serial@12090000 {
> > + compatible = "arm,pl011", "arm,primecell";
> > + reg = <0x12090000 0x1000>;
> > + interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>;
> > + clocks = <&crg HI3521A_UART1_CLK>;
> > + clock-names = "apb_pclk";
> > + dmas = <&dmac 2 1>, <&dmac 3 2>;
> > + dma-names = "rx", "tx";
> > + status = "disabled";
> > + };
> > +
> > + uart2: serial@120a0000 {
> > + compatible = "arm,pl011", "arm,primecell";
> > + reg = <0x120a0000 0x1000>;
> > + interrupts = <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>;
> > + clocks = <&crg HI3521A_UART2_CLK>;
> > + clock-names = "apb_pclk";
> > + dmas = <&dmac 4 1>, <&dmac 5 2>;
> > + dma-names = "rx", "tx";
> > + status = "disabled";
> > + };
> > +
> > + spi_bus0: spi@120d0000 {
> > + compatible = "arm,pl022", "arm,primecell";
> > + reg = <0x120d0000 0x1000>;
> > + arm,primecell-periphid = <0x00041022>;
> > + interrupts = <GIC_SPI 14 IRQ_TYPE_LEVEL_HIGH>;
> > + clocks = <&crg HI3521A_SPI0_CLK>;
> > + clock-names = "apb_pclk";
> > + dmas = <&dmac 6 1>, <&dmac 7 2>;
> > + dma-names = "rx", "tx";
> > + num-cs = <2>;
> > + status = "disabled";
> > + };
> > +
> > + pmx0: pinmux@120f0000 {
> > + compatible = "pinctrl-single";
> > + reg = <0x120f0000 0x188>;
> > + #address-cells = <1>;
> > + #size-cells = <1>;
> > + #pinctrl-cells = <1>;
> > + #gpio-range-cells = <3>;
> > + ranges;
> > +
> > + pinctrl-single,register-width = <32>;
> > + pinctrl-single,function-mask = <7>;
> > + /* pin base, nr pins & gpio function */
> > + pinctrl-single,gpio-range = <
> > + &range 58 4 0
> > + >;
> > +
> > + range: gpio-range {
> > + #pinctrl-single,gpio-range-cells = <3>;
> > + };
> > + };
> > +
> > + pmx1: pinmux@120f0800 {
> > + compatible = "pinconf-single";
> > + reg = <0x120f0800 0x1d4>;
> > + #address-cells = <1>;
> > + #size-cells = <1>;
> > + #pinctrl-cells = <1>;
> > + ranges;
> > +
> > + pinctrl-single,register-width = <32>;
> > + };
> > +
> > + gpio0: gpio@12150000 {
> > + compatible = "arm,pl061", "arm,primecell";
> > + reg = <0x12150000 0x1000>;
> > + interrupts = <GIC_SPI 57 IRQ_TYPE_LEVEL_HIGH>;
> > + gpio-controller;
> > + #gpio-cells = <2>;
> > + interrupt-controller;
> > + #interrupt-cells = <2>;
> > + status = "disabled";
> > + };
> > +
> > + gpio1: gpio@12160000 {
> > + compatible = "arm,pl061", "arm,primecell";
> > + reg = <0x12160000 0x1000>;
> > + interrupts = <GIC_SPI 57 IRQ_TYPE_LEVEL_HIGH>;
> > + gpio-controller;
> > + #gpio-cells = <2>;
> > + interrupt-controller;
> > + #interrupt-cells = <2>;
> > + status = "disabled";
> > + };
> > +
> > + gpio2: gpio@12170000 {
> > + compatible = "arm,pl061", "arm,primecell";
> > + reg = <0x12170000 0x1000>;
> > + interrupts = <GIC_SPI 57 IRQ_TYPE_LEVEL_HIGH>;
> > + gpio-controller;
> > + #gpio-cells = <2>;
> > + interrupt-controller;
> > + #interrupt-cells = <2>;
> > + status = "disabled";
> > + };
> > +
> > + gpio3: gpio@12180000 {
> > + compatible = "arm,pl061", "arm,primecell";
> > + reg = <0x12180000 0x1000>;
> > + interrupts = <GIC_SPI 57 IRQ_TYPE_LEVEL_HIGH>;
> > + gpio-controller;
> > + #gpio-cells = <2>;
> > + interrupt-controller;
> > + #interrupt-cells = <2>;
> > + status = "disabled";
> > + };
> > +
> > + gpio4: gpio@12190000 {
> > + compatible = "arm,pl061", "arm,primecell";
> > + reg = <0x12190000 0x1000>;
> > + interrupts = <GIC_SPI 57 IRQ_TYPE_LEVEL_HIGH>;
> > + gpio-controller;
> > + #gpio-cells = <2>;
> > + interrupt-controller;
> > + #interrupt-cells = <2>;
> > + status = "disabled";
> > + };
> > +
> > + gpio5: gpio@121a0000 {
> > + compatible = "arm,pl061", "arm,primecell";
> > + reg = <0x121a0000 0x1000>;
> > + interrupts = <GIC_SPI 58 IRQ_TYPE_LEVEL_HIGH>;
> > + gpio-controller;
> > + #gpio-cells = <2>;
> > + interrupt-controller;
> > + #interrupt-cells = <2>;
> > + status = "disabled";
> > + };
> > +
> > + gpio6: gpio@121b0000 {
> > + compatible = "arm,pl061", "arm,primecell";
> > + reg = <0x121b0000 0x1000>;
> > + interrupts = <GIC_SPI 58 IRQ_TYPE_LEVEL_HIGH>;
>
> Same interrupts as for other nodes? Is it correct?
>
Yep, there are three interrupts for the gpios and they're shared among a
few each.
> > + gpio-controller;
> > + #gpio-cells = <2>;
> > + interrupt-controller;
> > + #interrupt-cells = <2>;
> > + status = "disabled";
> > + };
> > +
> > + gpio7: gpio@121c0000 {
> > + compatible = "arm,pl061", "arm,primecell";
> > + reg = <0x121c0000 0x1000>;
> > + interrupts = <GIC_SPI 58 IRQ_TYPE_LEVEL_HIGH>;
> > + gpio-controller;
> > + #gpio-cells = <2>;
> > + interrupt-controller;
> > + #interrupt-cells = <2>;
> > + status = "disabled";
> > + };
> > +_MULTI_V7
>
>
> Best regards,
> Krzysztof