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Message-ID: <531EE0D5.6030906@st.com>
Date: Tue, 11 Mar 2014 11:09:25 +0100
From: Maxime Coquelin <maxime.coquelin@...com>
To: Lee Jones <lee.jones@...aro.org>
Cc: Rob Landley <rob@...dley.net>, Rob Herring <robh+dt@...nel.org>,
Pawel Moll <pawel.moll@....com>,
Mark Rutland <mark.rutland@....com>,
Ian Campbell <ijc+devicetree@...lion.org.uk>,
Kumar Gala <galak@...eaurora.org>,
Russell King <linux@....linux.org.uk>,
Srinivas Kandagatla <srinivas.kandagatla@...com>,
Stuart Menefy <stuart.menefy@...com>,
Linus Walleij <linus.walleij@...aro.org>,
Giuseppe Cavallaro <peppe.cavallaro@...com>,
<linux-doc@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
<devicetree@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>, <kernel@...inux.com>
Subject: Re: [PATCH v3 4/5] ARM: dts: Add STiH407 SoC support
On 03/10/2014 01:28 PM, Lee Jones wrote:
> On Fri, 07 Mar 2014, Maxime COQUELIN wrote:
>
>> The STiH407 is advanced multi-HD AVC processor with 3D graphics acceleration
>> and 1.5-GHz ARM Cortex-A9 SMP CPU.
>>
>> Signed-off-by: Maxime Coquelin <maxime.coquelin@...com>
>> Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@...com>
>> ---
>> arch/arm/boot/dts/stih407-clock.dtsi | 41 +++
>> arch/arm/boot/dts/stih407-pinctrl.dtsi | 618 +++++++++++++++++++++++++++++++++
>> arch/arm/boot/dts/stih407.dtsi | 250 +++++++++++++
>> 3 files changed, 909 insertions(+)
>> create mode 100644 arch/arm/boot/dts/stih407-clock.dtsi
>> create mode 100644 arch/arm/boot/dts/stih407-pinctrl.dtsi
>> create mode 100644 arch/arm/boot/dts/stih407.dtsi
>>
>> diff --git a/arch/arm/boot/dts/stih407-clock.dtsi b/arch/arm/boot/dts/stih407-clock.dtsi
>> new file mode 100644
>> index 0000000..f50ac6f
>> --- /dev/null
>> +++ b/arch/arm/boot/dts/stih407-clock.dtsi
>> @@ -0,0 +1,41 @@
>
> Going to gloss over this, as you and Srini are the platform experts.
>
>> +/*
>> + * Copyright (C) 2013 STMicroelectronics R&D Limited
>
> s/2013/2014
>
>> + * <stlinux-devel@...inux.com>
>
> Might consider submitting a MAINTAINERS entry for all of ST's DTS(I)
> files and removing this from them. Only if this ML is pretty
> stable/constant of course.
I prefer removing this ML.
The right one is kernel@...inux.com as specified in the MAINTAINERS file.
ST's DTS files are being added to MAINTAINERS file with this patch from
Srini: http://marc.info/?l=linux-arm-kernel&m=139384666716614&w=2
>
<snip>
>> + PIO1: gpio@...11000 {
>> + gpio-controller;
>> + #gpio-cells = <1>;
>> + interrupt-controller;
>> + #interrupt-cells = <2>;
>> + reg = <0x1000 0x100>;
>
> Are there really these big gaps in the register space i.e 0x1100 -> 0x2000 etc?
Yes.
>
<snip>
>> +
>> + gmac1 {
>> + /*
>> + Almost all the boards based on STiH407 SoC have an embedded
>> + switch where the mdio/mdc have been used for managing the SMI
>> + iface via I2C. For this reason these lines can be allocated
>> + by using dedicated configuration (in case of there will be a
>> + standard PHY transceiver on-board).
>> + */
>
> Non-standard multi-line comment. Please fill in the remaining '*'s.
Right, this will be fixed in v4.
>
>> + pinctrl_rgmii1: rgmii1-0 {
>> + st,pins {
>> +
>> + txd0 = <&PIO0 0 ALT1 OUT DE_IO 0 CLK_A>;
>> + txd1 = <&PIO0 1 ALT1 OUT DE_IO 0 CLK_A>;
>> + txd2 = <&PIO0 2 ALT1 OUT DE_IO 0 CLK_A>;
>> + txd3 = <&PIO0 3 ALT1 OUT DE_IO 0 CLK_A>;
>> + txen = <&PIO0 5 ALT1 OUT DE_IO 0 CLK_A>;
>> + txclk = <&PIO0 6 ALT1 IN NICLK 0 CLK_A>;
>> + rxd0 = <&PIO1 4 ALT1 IN DE_IO 0 CLK_A>;
>> + rxd1 = <&PIO1 5 ALT1 IN DE_IO 0 CLK_A>;
>> + rxd2 = <&PIO1 6 ALT1 IN DE_IO 0 CLK_A>;
>> + rxd3 = <&PIO1 7 ALT1 IN DE_IO 0 CLK_A>;
>> + rxdv = <&PIO2 0 ALT1 IN DE_IO 0 CLK_A>;
>> + rxclk = <&PIO2 2 ALT1 IN NICLK 500 CLK_A>;
>> + clk125 = <&PIO3 7 ALT4 IN NICLK 0 CLK_A>;
>> + phyclk = <&PIO2 3 ALT4 OUT NICLK 1750 CLK_B>;
>> + };
>> + };
>> +
>> + pinctrl_rgmii1_mdio: rgmii1-mdio {
>> + st,pins {
>> + mdio = <&PIO1 0 ALT1 OUT BYPASS 0>;
>> + mdc = <&PIO1 1 ALT1 OUT NICLK 0 CLK_A>;
>> + mdint = <&PIO1 3 ALT1 IN BYPASS 0>;
>> + };
>> + };
>> +
>> + pinctrl_mii1: mii1 {
>> + st,pins {
>> + txd0 = <&PIO0 0 ALT1 OUT SE_NICLK_IO 0 CLK_A>;
>> + txd1 = <&PIO0 1 ALT1 OUT SE_NICLK_IO 0 CLK_A>;
>> + txd2 = <&PIO0 2 ALT1 OUT SE_NICLK_IO 0 CLK_A>;
>> + txd3 = <&PIO0 3 ALT1 OUT SE_NICLK_IO 0 CLK_A>;
>> + txer = <&PIO0 4 ALT1 OUT SE_NICLK_IO 0 CLK_A>;
>> + txen = <&PIO0 5 ALT1 OUT SE_NICLK_IO 0 CLK_A>;
>> + txclk = <&PIO0 6 ALT1 IN NICLK 0 CLK_A>;
>> + col = <&PIO0 7 ALT1 IN BYPASS 1000>;
>> +
>> + mdio = <&PIO1 0 ALT1 OUT BYPASS 1500>;
>> + mdc = <&PIO1 1 ALT1 OUT NICLK 0 CLK_A>;
>> + crs = <&PIO1 2 ALT1 IN BYPASS 1000>;
>> + mdint = <&PIO1 3 ALT1 IN BYPASS 0>;
>> + rxd0 = <&PIO1 4 ALT1 IN SE_NICLK_IO 0 CLK_A>;
>> + rxd1 = <&PIO1 5 ALT1 IN SE_NICLK_IO 0 CLK_A>;
>> + rxd2 = <&PIO1 6 ALT1 IN SE_NICLK_IO 0 CLK_A>;
>> + rxd3 = <&PIO1 7 ALT1 IN SE_NICLK_IO 0 CLK_A>;
>> +
>> + rxdv = <&PIO2 0 ALT1 IN SE_NICLK_IO 0 CLK_A>;
>> + rx_er = <&PIO2 1 ALT1 IN SE_NICLK_IO 0 CLK_A>;
>> + rxclk = <&PIO2 2 ALT1 IN NICLK 0 CLK_A>;
>> + phyclk = <&PIO2 3 ALT1 OUT NICLK 0 CLK_A>;
>> + };
>> + };
>> +
>> + };
>
> Superflous new line.
Fixed.
>
<snip>
>> +
>> + pwm0 {
>> + pinctrl_pwm0_chan0_default: pwm0-0-default {
>> + st,pins {
>> + pwm-out = <&PIO31 1 ALT1 OUT>;
>> + };
>> + };
>> + };
>> +
>> + };
>
> Extra new line above.
Fixed.
>
<snip>
>> diff --git a/arch/arm/boot/dts/stih407.dtsi b/arch/arm/boot/dts/stih407.dtsi
>> new file mode 100644
>> index 0000000..2a0566b
>> --- /dev/null
>> +++ b/arch/arm/boot/dts/stih407.dtsi
>> @@ -0,0 +1,250 @@
>> +/*
>> + * Copyright (C) 2013 STMicroelectronics Limited.
>> + * Author: Giuseppe Cavallaro <peppe.cavallaro@...com>
>> + *
>> + * This program is free software; you can redistribute it and/or modify
>> + * it under the terms of the GNU General Public License version 2 as
>> + * publishhed by the Free Software Foundation.
>> + */
>> +#include "stih407-clock.dtsi"
>> +#include "stih407-pinctrl.dtsi"
>> +/ {
>> + #address-cells = <1>;
>> + #size-cells = <1>;
>> +
>> + cpus {
>> + #address-cells = <1>;
>> + #size-cells = <0>;
>> + cpu@0 {
>> + device_type = "cpu";
>> + compatible = "arm,cortex-a9";
>> + reg = <0>;
>> + };
>> + cpu@1 {
>> + device_type = "cpu";
>> + compatible = "arm,cortex-a9";
>> + reg = <1>;
>> + };
>> + };
>> +
>> + intc: interrupt-controller@...61000 {
>> + compatible = "arm,cortex-a9-gic";
>> + #interrupt-cells = <3>;
>> + interrupt-controller;
>> + reg = <0x08761000 0x1000>, <0x08760100 0x100>;
>> + };
>> +
>> + scu@...60000 {
>> + compatible = "arm,cortex-a9-scu";
>> + reg = <0x08760000 0x1000>;
>> + };
>> +
>> + timer@...60200 {
>> + interrupt-parent = <&intc>;
>> + compatible = "arm,cortex-a9-global-timer";
>> + reg = <0x08760200 0x100>;
>> + interrupts = <GIC_PPI 11 IRQ_TYPE_LEVEL_HIGH>;
>> + clocks = <&arm_periph_clk>;
>> + };
>> +
>> + L2: cache-controller {
>> + compatible = "arm,pl310-cache";
>> + reg = <0x08762000 0x1000>;
>> + arm,data-latency = <3 3 3>;
>> + arm,tag-latency = <2 2 2>;
>> + cache-unified;
>> + cache-level = <2>;
>> + };
>> +
>> + soc {
>> + #address-cells = <1>;
>> + #size-cells = <1>;
>> + interrupt-parent = <&intc>;
>> + ranges;
>> + compatible = "simple-bus";
>> +
>> + syscfg_sbc:sbc-syscfg@...0000{
>
> Space after colon and another after the address.
>
> Same for all of the nodes below and throughout the patch.
Fixed here and evrywhere in the file.
<snip>
>> + serial@...0000{
>> + compatible = "st,asc";
>> + status = "disabled";
>
> This might just be a personal thing, but I prefer to see the status at
> the base of the node with a new line above it, as it is only relevant
> to the node rather than the device.
>
>> + reg = <0x9830000 0x2c>;
>> + interrupts = <GIC_SPI 122 IRQ_TYPE_NONE>;
>> + pinctrl-names = "default";
>> + pinctrl-0 = <&pinctrl_serial0>;
>> + clocks = <&CLK_EXT2F_A9>;
>> + };
>
> Like this:
> serial@...0000{
> compatible = "st,asc";
> reg = <0x9830000 0x2c>;
> interrupts = <GIC_SPI 122 IRQ_TYPE_NONE>;
> pinctrl-names = "default";
> pinctrl-0 = <&pinctrl_serial0>;
> clocks = <&CLK_EXT2F_A9>;
>
> status = "disabled";
> };
Okay. I made the change for all the nodes.
>
<snip>
>
> Not sure if this is Git playing around again, but the };s look
> misaligned in the submission.
>
> Wow, this is good work and a lot of code!
>
> Once my comments have been rectified, feel free to add my:
> Acked-by: Lee Jones <lee.jones@...aro.org>
Thanks for the review Lee.
I added your Ack.
Regards,
Maxime
>
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