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Message-ID: <a1ef17b0-1a8f-5633-de30-1d96130ccc66@epam.com>
Date: Fri, 21 Apr 2023 10:19:15 +0000
From: Oleksii Moisieiev <Oleksii_Moisieiev@...m.com>
To: Gatien CHEVALLIER <gatien.chevallier@...s.st.com>,
Ahmad Fatoum <a.fatoum@...gutronix.de>,
"gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>,
"herbert@...dor.apana.org.au" <herbert@...dor.apana.org.au>,
"davem@...emloft.net" <davem@...emloft.net>,
"robh+dt@...nel.org" <robh+dt@...nel.org>,
"krzysztof.kozlowski+dt@...aro.org"
<krzysztof.kozlowski+dt@...aro.org>,
"alexandre.torgue@...s.st.com" <alexandre.torgue@...s.st.com>,
"vkoul@...nel.org" <vkoul@...nel.org>,
"jic23@...nel.org" <jic23@...nel.org>,
"olivier.moysan@...s.st.com" <olivier.moysan@...s.st.com>,
"arnaud.pouliquen@...s.st.com" <arnaud.pouliquen@...s.st.com>,
"mchehab@...nel.org" <mchehab@...nel.org>,
"fabrice.gasnier@...s.st.com" <fabrice.gasnier@...s.st.com>,
"ulf.hansson@...aro.org" <ulf.hansson@...aro.org>,
"edumazet@...gle.com" <edumazet@...gle.com>,
"kuba@...nel.org" <kuba@...nel.org>,
"pabeni@...hat.com" <pabeni@...hat.com>
CC: "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
"alsa-devel@...a-project.org" <alsa-devel@...a-project.org>,
"linux-iio@...r.kernel.org" <linux-iio@...r.kernel.org>,
"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
"linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>,
"linux-mmc@...r.kernel.org" <linux-mmc@...r.kernel.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"linux-spi@...r.kernel.org" <linux-spi@...r.kernel.org>,
"linux-i2c@...r.kernel.org" <linux-i2c@...r.kernel.org>,
"dmaengine@...r.kernel.org" <dmaengine@...r.kernel.org>,
"linux-crypto@...r.kernel.org" <linux-crypto@...r.kernel.org>,
"linux-serial@...r.kernel.org" <linux-serial@...r.kernel.org>,
"linux-phy@...ts.infradead.org" <linux-phy@...ts.infradead.org>,
"linux-stm32@...md-mailman.stormreply.com"
<linux-stm32@...md-mailman.stormreply.com>,
"linux-arm-kernel@...ts.infradead.org"
<linux-arm-kernel@...ts.infradead.org>,
"linux-media@...r.kernel.org" <linux-media@...r.kernel.org>,
Pengutronix Kernel Team <kernel@...gutronix.de>,
Peng Fan <peng.fan@....nxp.com>
Subject: Re: [Linux-stm32] [PATCH v3 6/6] ARM: dts: stm32: add ETZPC as a
system bus for STM32MP13x boards
Hello,
I'm just wandering what is the status of the Patch Series?
Cc'ed Peng Fang as he also has an interest in the domain-controller
bindings.
Oleksii.
On 27.02.23 13:26, Gatien CHEVALLIER wrote:
> Hello Ahmad,
>
> Sorry for the delay :)
>
> On 2/13/23 12:27, Ahmad Fatoum wrote:
>> Hello Gatien,
>>
>> On 13.02.23 11:54, Gatien CHEVALLIER wrote:
>>> On 2/9/23 09:10, Ahmad Fatoum wrote:
>>>> On 09.02.23 08:46, Ahmad Fatoum wrote:
>>>>> Hello Gatien,
>>>>>
>>>>> On 27.01.23 17:40, Gatien Chevallier wrote:
>>>>>> The STM32 System Bus is an internal bus on which devices are
>>>>>> connected.
>>>>>> ETZPC is a peripheral overseeing the firewall bus that configures
>>>>>> and control access to the peripherals connected on it.
>>>>>>
>>>>>> For more information on which peripheral is securable, please read
>>>>>> the STM32MP13 reference manual.
>>>>>
>>>>> Diff is way too big. Please split up the alphabetic reordering
>>>>> into its
>>>>> own commit, so actual functional changes are apparent.
>>>>
>>>> Ah, I see now that you are moving securable peripherals into a new
>>>> bus.
>>>> I share Uwe's confusion of considering the ETZPC as bus.
>>>>
>>>> Does this configuration even change dynamically? Why can't you
>>>> implement
>>>> this binding in the bootloader and have Linux only see a DT where
>>>> unavailable
>>>> nodes are status = "disabled"; secure-status = "okay"?
>>>>
>>>> For inspiration, see barebox' device tree fixups when devices are
>>>> disabled
>>>> per fuse:
>>>>
>>>> https://urldefense.com/v3/__https://elixir.bootlin.com/barebox/v2023.01.0/source/drivers/base/featctrl.c*L122__;Iw!!GF_29dbcQIUBPA!2CT6VXNxfrLUg3mPkiAykgwwu8y8TVPaVa5FupuehHDyeuPvx4a2aNuMs-ayUCqP8q364P8u0GxYprlqwrvgvnXndYBmii57$
>>>> [elixir[.]bootlin[.]com]
>>>>
>>>> Cheers,
>>>> Ahmad
>>>
>>> This configuration can change dynamically. The binding will be
>>> implemented in the bootloader, where the ETZPC is already
>>> implemented as a bus in our downstream.
>>>
>>> I find the mentionned example valid.
>>>
>>> Now, why is it a bus? :D
>>>
>>> It is the result of the discussion on the previous submission by
>>> Benjamin (Sorry for the lack of link but I saw that you participated
>>> on these threads)+ we need the bus mechanism to control whether a
>>> subnode should be probed or not. You can see it as a firewall bus.
>>>
>>> The ETZPC relies on the ARM TrustZone extension to the AHB bus and
>>> propagation through bridges to the APB bus. Therefore, I find it
>>> relevant to consider it as a bus, what is your opinion?
>>>
>>> This patchset is a first step to the implementation of an API to
>>> control accesses dynamically.
>>
>> I still don't get what's dynamic about this. Either:
>>
>> - Configuration _can_ change while Linux is running: You'll need
>> to do
>> way more than what your current bus provides to somwhow
>> synchronize state
>> with the secure monitor; otherwise a newly secured device will
>> cause the driver
>> to trigger data aborts that you'll have to handle and unbind the
>> driver.
>> (like if a USB drive is yanked out).
>>
>> - Configuration _can't_ change while Linux is running: You can
>> have the bootloader
>> fixup the device tree and Linux need not care at all about
>> devices that the
>> ETZPC is securing.
>>
>> My understanding is that the latter is your use case, so I don't see
>> why we
>> even need the normal world to be aware of the partitioning.
>>
>> Cheers,
>> Ahmad
>>
> What about the case where we do not have a U-Boot/bootloader to fixup
> the device tree?
>
> On the other hand, ETZPC is a hardware firewall and is on the bus.
> Therefore, shouldn't it be represented as a bus in the file that
> describes the hardware?
>
> Best regards,
> Gatien
>
>>>
>>>>
>>>>>
>>>>> Thanks,
>>>>> Ahmad
>>>>>
>>>>>>
>>>>>> Signed-off-by: Gatien Chevallier <gatien.chevallier@...s.st.com>
>>>>>> ---
>>>>>>
>>>>>> No changes in V2.
>>>>>>
>>>>>> Changes in V3:
>>>>>> -Use appriopriate node name: bus
>>>>>>
>>>>>> arch/arm/boot/dts/stm32mp131.dtsi | 407
>>>>>> +++++++++++++++--------------
>>>>>> arch/arm/boot/dts/stm32mp133.dtsi | 51 ++--
>>>>>> arch/arm/boot/dts/stm32mp13xc.dtsi | 19 +-
>>>>>> arch/arm/boot/dts/stm32mp13xf.dtsi | 18 +-
>>>>>> 4 files changed, 258 insertions(+), 237 deletions(-)
>>>>>>
>>>>>> diff --git a/arch/arm/boot/dts/stm32mp131.dtsi
>>>>>> b/arch/arm/boot/dts/stm32mp131.dtsi
>>>>>> index accc3824f7e9..24462a647101 100644
>>>>>> --- a/arch/arm/boot/dts/stm32mp131.dtsi
>>>>>> +++ b/arch/arm/boot/dts/stm32mp131.dtsi
>>>>>> @@ -253,148 +253,6 @@ dmamux1: dma-router@...02000 {
>>>>>> dma-channels = <16>;
>>>>>> };
>>>>>> - adc_2: adc@...04000 {
>>>>>> - compatible = "st,stm32mp13-adc-core";
>>>>>> - reg = <0x48004000 0x400>;
>>>>>> - interrupts = <GIC_SPI 19 IRQ_TYPE_LEVEL_HIGH>;
>>>>>> - clocks = <&rcc ADC2>, <&rcc ADC2_K>;
>>>>>> - clock-names = "bus", "adc";
>>>>>> - interrupt-controller;
>>>>>> - #interrupt-cells = <1>;
>>>>>> - #address-cells = <1>;
>>>>>> - #size-cells = <0>;
>>>>>> - status = "disabled";
>>>>>> -
>>>>>> - adc2: adc@0 {
>>>>>> - compatible = "st,stm32mp13-adc";
>>>>>> - #io-channel-cells = <1>;
>>>>>> - #address-cells = <1>;
>>>>>> - #size-cells = <0>;
>>>>>> - reg = <0x0>;
>>>>>> - interrupt-parent = <&adc_2>;
>>>>>> - interrupts = <0>;
>>>>>> - dmas = <&dmamux1 10 0x400 0x80000001>;
>>>>>> - dma-names = "rx";
>>>>>> - status = "disabled";
>>>>>> -
>>>>>> - channel@13 {
>>>>>> - reg = <13>;
>>>>>> - label = "vrefint";
>>>>>> - };
>>>>>> - channel@14 {
>>>>>> - reg = <14>;
>>>>>> - label = "vddcore";
>>>>>> - };
>>>>>> - channel@16 {
>>>>>> - reg = <16>;
>>>>>> - label = "vddcpu";
>>>>>> - };
>>>>>> - channel@17 {
>>>>>> - reg = <17>;
>>>>>> - label = "vddq_ddr";
>>>>>> - };
>>>>>> - };
>>>>>> - };
>>>>>> -
>>>>>> - usbotg_hs: usb@...00000 {
>>>>>> - compatible = "st,stm32mp15-hsotg", "snps,dwc2";
>>>>>> - reg = <0x49000000 0x40000>;
>>>>>> - clocks = <&rcc USBO_K>;
>>>>>> - clock-names = "otg";
>>>>>> - resets = <&rcc USBO_R>;
>>>>>> - reset-names = "dwc2";
>>>>>> - interrupts = <GIC_SPI 96 IRQ_TYPE_LEVEL_HIGH>;
>>>>>> - g-rx-fifo-size = <512>;
>>>>>> - g-np-tx-fifo-size = <32>;
>>>>>> - g-tx-fifo-size = <256 16 16 16 16 16 16 16>;
>>>>>> - dr_mode = "otg";
>>>>>> - otg-rev = <0x200>;
>>>>>> - usb33d-supply = <&usb33>;
>>>>>> - status = "disabled";
>>>>>> - };
>>>>>> -
>>>>>> - spi4: spi@...02000 {
>>>>>> - compatible = "st,stm32h7-spi";
>>>>>> - reg = <0x4c002000 0x400>;
>>>>>> - interrupts = <GIC_SPI 85 IRQ_TYPE_LEVEL_HIGH>;
>>>>>> - clocks = <&rcc SPI4_K>;
>>>>>> - resets = <&rcc SPI4_R>;
>>>>>> - #address-cells = <1>;
>>>>>> - #size-cells = <0>;
>>>>>> - dmas = <&dmamux1 83 0x400 0x01>,
>>>>>> - <&dmamux1 84 0x400 0x01>;
>>>>>> - dma-names = "rx", "tx";
>>>>>> - status = "disabled";
>>>>>> - };
>>>>>> -
>>>>>> - spi5: spi@...03000 {
>>>>>> - compatible = "st,stm32h7-spi";
>>>>>> - reg = <0x4c003000 0x400>;
>>>>>> - interrupts = <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>;
>>>>>> - clocks = <&rcc SPI5_K>;
>>>>>> - resets = <&rcc SPI5_R>;
>>>>>> - #address-cells = <1>;
>>>>>> - #size-cells = <0>;
>>>>>> - dmas = <&dmamux1 85 0x400 0x01>,
>>>>>> - <&dmamux1 86 0x400 0x01>;
>>>>>> - dma-names = "rx", "tx";
>>>>>> - status = "disabled";
>>>>>> - };
>>>>>> -
>>>>>> - i2c3: i2c@...04000 {
>>>>>> - compatible = "st,stm32mp13-i2c";
>>>>>> - reg = <0x4c004000 0x400>;
>>>>>> - interrupt-names = "event", "error";
>>>>>> - interrupts = <GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH>,
>>>>>> - <GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH>;
>>>>>> - clocks = <&rcc I2C3_K>;
>>>>>> - resets = <&rcc I2C3_R>;
>>>>>> - #address-cells = <1>;
>>>>>> - #size-cells = <0>;
>>>>>> - dmas = <&dmamux1 73 0x400 0x1>,
>>>>>> - <&dmamux1 74 0x400 0x1>;
>>>>>> - dma-names = "rx", "tx";
>>>>>> - st,syscfg-fmp = <&syscfg 0x4 0x4>;
>>>>>> - i2c-analog-filter;
>>>>>> - status = "disabled";
>>>>>> - };
>>>>>> -
>>>>>> - i2c4: i2c@...05000 {
>>>>>> - compatible = "st,stm32mp13-i2c";
>>>>>> - reg = <0x4c005000 0x400>;
>>>>>> - interrupt-names = "event", "error";
>>>>>> - interrupts = <GIC_SPI 93 IRQ_TYPE_LEVEL_HIGH>,
>>>>>> - <GIC_SPI 94 IRQ_TYPE_LEVEL_HIGH>;
>>>>>> - clocks = <&rcc I2C4_K>;
>>>>>> - resets = <&rcc I2C4_R>;
>>>>>> - #address-cells = <1>;
>>>>>> - #size-cells = <0>;
>>>>>> - dmas = <&dmamux1 75 0x400 0x1>,
>>>>>> - <&dmamux1 76 0x400 0x1>;
>>>>>> - dma-names = "rx", "tx";
>>>>>> - st,syscfg-fmp = <&syscfg 0x4 0x8>;
>>>>>> - i2c-analog-filter;
>>>>>> - status = "disabled";
>>>>>> - };
>>>>>> -
>>>>>> - i2c5: i2c@...06000 {
>>>>>> - compatible = "st,stm32mp13-i2c";
>>>>>> - reg = <0x4c006000 0x400>;
>>>>>> - interrupt-names = "event", "error";
>>>>>> - interrupts = <GIC_SPI 114 IRQ_TYPE_LEVEL_HIGH>,
>>>>>> - <GIC_SPI 115 IRQ_TYPE_LEVEL_HIGH>;
>>>>>> - clocks = <&rcc I2C5_K>;
>>>>>> - resets = <&rcc I2C5_R>;
>>>>>> - #address-cells = <1>;
>>>>>> - #size-cells = <0>;
>>>>>> - dmas = <&dmamux1 115 0x400 0x1>,
>>>>>> - <&dmamux1 116 0x400 0x1>;
>>>>>> - dma-names = "rx", "tx";
>>>>>> - st,syscfg-fmp = <&syscfg 0x4 0x10>;
>>>>>> - i2c-analog-filter;
>>>>>> - status = "disabled";
>>>>>> - };
>>>>>> -
>>>>>> rcc: rcc@...00000 {
>>>>>> compatible = "st,stm32mp13-rcc", "syscon";
>>>>>> reg = <0x50000000 0x1000>;
>>>>>> @@ -431,34 +289,6 @@ mdma: dma-controller@...00000 {
>>>>>> dma-requests = <48>;
>>>>>> };
>>>>>> - sdmmc1: mmc@...05000 {
>>>>>> - compatible = "st,stm32-sdmmc2", "arm,pl18x",
>>>>>> "arm,primecell";
>>>>>> - arm,primecell-periphid = <0x20253180>;
>>>>>> - reg = <0x58005000 0x1000>, <0x58006000 0x1000>;
>>>>>> - interrupts = <GIC_SPI 50 IRQ_TYPE_LEVEL_HIGH>;
>>>>>> - clocks = <&rcc SDMMC1_K>;
>>>>>> - clock-names = "apb_pclk";
>>>>>> - resets = <&rcc SDMMC1_R>;
>>>>>> - cap-sd-highspeed;
>>>>>> - cap-mmc-highspeed;
>>>>>> - max-frequency = <130000000>;
>>>>>> - status = "disabled";
>>>>>> - };
>>>>>> -
>>>>>> - sdmmc2: mmc@...07000 {
>>>>>> - compatible = "st,stm32-sdmmc2", "arm,pl18x",
>>>>>> "arm,primecell";
>>>>>> - arm,primecell-periphid = <0x20253180>;
>>>>>> - reg = <0x58007000 0x1000>, <0x58008000 0x1000>;
>>>>>> - interrupts = <GIC_SPI 108 IRQ_TYPE_LEVEL_HIGH>;
>>>>>> - clocks = <&rcc SDMMC2_K>;
>>>>>> - clock-names = "apb_pclk";
>>>>>> - resets = <&rcc SDMMC2_R>;
>>>>>> - cap-sd-highspeed;
>>>>>> - cap-mmc-highspeed;
>>>>>> - max-frequency = <130000000>;
>>>>>> - status = "disabled";
>>>>>> - };
>>>>>> -
>>>>>> usbh_ohci: usb@...0c000 {
>>>>>> compatible = "generic-ohci";
>>>>>> reg = <0x5800c000 0x1000>;
>>>>>> @@ -486,29 +316,6 @@ iwdg2: watchdog@...02000 {
>>>>>> status = "disabled";
>>>>>> };
>>>>>> - usbphyc: usbphyc@...06000 {
>>>>>> - #address-cells = <1>;
>>>>>> - #size-cells = <0>;
>>>>>> - #clock-cells = <0>;
>>>>>> - compatible = "st,stm32mp1-usbphyc";
>>>>>> - reg = <0x5a006000 0x1000>;
>>>>>> - clocks = <&rcc USBPHY_K>;
>>>>>> - resets = <&rcc USBPHY_R>;
>>>>>> - vdda1v1-supply = <®11>;
>>>>>> - vdda1v8-supply = <®18>;
>>>>>> - status = "disabled";
>>>>>> -
>>>>>> - usbphyc_port0: usb-phy@0 {
>>>>>> - #phy-cells = <0>;
>>>>>> - reg = <0>;
>>>>>> - };
>>>>>> -
>>>>>> - usbphyc_port1: usb-phy@1 {
>>>>>> - #phy-cells = <1>;
>>>>>> - reg = <1>;
>>>>>> - };
>>>>>> - };
>>>>>> -
>>>>>> rtc: rtc@...04000 {
>>>>>> compatible = "st,stm32mp1-rtc";
>>>>>> reg = <0x5c004000 0x400>;
>>>>>> @@ -536,6 +343,220 @@ ts_cal2: calib@5e {
>>>>>> };
>>>>>> };
>>>>>> + etzpc: bus@...07000 {
>>>>>> + compatible = "st,stm32mp13-sys-bus";
>>>>>> + reg = <0x5c007000 0x400>;
>>>>>> + #address-cells = <1>;
>>>>>> + #size-cells = <1>;
>>>>>> + feature-domain-controller;
>>>>>> + #feature-domain-cells = <1>;
>>>>>> + ranges;
>>>>>> +
>>>>>> + adc_2: adc@...04000 {
>>>>>> + compatible = "st,stm32mp13-adc-core";
>>>>>> + reg = <0x48004000 0x400>;
>>>>>> + interrupts = <GIC_SPI 19 IRQ_TYPE_LEVEL_HIGH>;
>>>>>> + clocks = <&rcc ADC2>, <&rcc ADC2_K>;
>>>>>> + clock-names = "bus", "adc";
>>>>>> + interrupt-controller;
>>>>>> + #interrupt-cells = <1>;
>>>>>> + #address-cells = <1>;
>>>>>> + #size-cells = <0>;
>>>>>> + feature-domains = <&etzpc 33>;
>>>>>> + status = "disabled";
>>>>>> +
>>>>>> + adc2: adc@0 {
>>>>>> + compatible = "st,stm32mp13-adc";
>>>>>> + #io-channel-cells = <1>;
>>>>>> + #address-cells = <1>;
>>>>>> + #size-cells = <0>;
>>>>>> + reg = <0x0>;
>>>>>> + interrupt-parent = <&adc_2>;
>>>>>> + interrupts = <0>;
>>>>>> + dmas = <&dmamux1 10 0x400 0x80000001>;
>>>>>> + dma-names = "rx";
>>>>>> + status = "disabled";
>>>>>> +
>>>>>> + channel@13 {
>>>>>> + reg = <13>;
>>>>>> + label = "vrefint";
>>>>>> + };
>>>>>> + channel@14 {
>>>>>> + reg = <14>;
>>>>>> + label = "vddcore";
>>>>>> + };
>>>>>> + channel@16 {
>>>>>> + reg = <16>;
>>>>>> + label = "vddcpu";
>>>>>> + };
>>>>>> + channel@17 {
>>>>>> + reg = <17>;
>>>>>> + label = "vddq_ddr";
>>>>>> + };
>>>>>> + };
>>>>>> + };
>>>>>> +
>>>>>> + usbotg_hs: usb@...00000 {
>>>>>> + compatible = "st,stm32mp15-hsotg", "snps,dwc2";
>>>>>> + reg = <0x49000000 0x40000>;
>>>>>> + clocks = <&rcc USBO_K>;
>>>>>> + clock-names = "otg";
>>>>>> + resets = <&rcc USBO_R>;
>>>>>> + reset-names = "dwc2";
>>>>>> + interrupts = <GIC_SPI 96 IRQ_TYPE_LEVEL_HIGH>;
>>>>>> + g-rx-fifo-size = <512>;
>>>>>> + g-np-tx-fifo-size = <32>;
>>>>>> + g-tx-fifo-size = <256 16 16 16 16 16 16 16>;
>>>>>> + dr_mode = "otg";
>>>>>> + otg-rev = <0x200>;
>>>>>> + usb33d-supply = <&usb33>;
>>>>>> + feature-domains = <&etzpc 34>;
>>>>>> + status = "disabled";
>>>>>> + };
>>>>>> +
>>>>>> + spi4: spi@...02000 {
>>>>>> + compatible = "st,stm32h7-spi";
>>>>>> + reg = <0x4c002000 0x400>;
>>>>>> + interrupts = <GIC_SPI 85 IRQ_TYPE_LEVEL_HIGH>;
>>>>>> + clocks = <&rcc SPI4_K>;
>>>>>> + resets = <&rcc SPI4_R>;
>>>>>> + #address-cells = <1>;
>>>>>> + #size-cells = <0>;
>>>>>> + dmas = <&dmamux1 83 0x400 0x01>,
>>>>>> + <&dmamux1 84 0x400 0x01>;
>>>>>> + dma-names = "rx", "tx";
>>>>>> + feature-domains = <&etzpc 18>;
>>>>>> + status = "disabled";
>>>>>> + };
>>>>>> +
>>>>>> + spi5: spi@...03000 {
>>>>>> + compatible = "st,stm32h7-spi";
>>>>>> + reg = <0x4c003000 0x400>;
>>>>>> + interrupts = <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>;
>>>>>> + clocks = <&rcc SPI5_K>;
>>>>>> + resets = <&rcc SPI5_R>;
>>>>>> + #address-cells = <1>;
>>>>>> + #size-cells = <0>;
>>>>>> + dmas = <&dmamux1 85 0x400 0x01>,
>>>>>> + <&dmamux1 86 0x400 0x01>;
>>>>>> + dma-names = "rx", "tx";
>>>>>> + feature-domains = <&etzpc 19>;
>>>>>> + status = "disabled";
>>>>>> + };
>>>>>> +
>>>>>> + i2c3: i2c@...04000 {
>>>>>> + compatible = "st,stm32mp13-i2c";
>>>>>> + reg = <0x4c004000 0x400>;
>>>>>> + interrupt-names = "event", "error";
>>>>>> + interrupts = <GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH>,
>>>>>> + <GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH>;
>>>>>> + clocks = <&rcc I2C3_K>;
>>>>>> + resets = <&rcc I2C3_R>;
>>>>>> + #address-cells = <1>;
>>>>>> + #size-cells = <0>;
>>>>>> + dmas = <&dmamux1 73 0x400 0x1>,
>>>>>> + <&dmamux1 74 0x400 0x1>;
>>>>>> + dma-names = "rx", "tx";
>>>>>> + st,syscfg-fmp = <&syscfg 0x4 0x4>;
>>>>>> + i2c-analog-filter;
>>>>>> + feature-domains = <&etzpc 20>;
>>>>>> + status = "disabled";
>>>>>> + };
>>>>>> +
>>>>>> + i2c4: i2c@...05000 {
>>>>>> + compatible = "st,stm32mp13-i2c";
>>>>>> + reg = <0x4c005000 0x400>;
>>>>>> + interrupt-names = "event", "error";
>>>>>> + interrupts = <GIC_SPI 93 IRQ_TYPE_LEVEL_HIGH>,
>>>>>> + <GIC_SPI 94 IRQ_TYPE_LEVEL_HIGH>;
>>>>>> + clocks = <&rcc I2C4_K>;
>>>>>> + resets = <&rcc I2C4_R>;
>>>>>> + #address-cells = <1>;
>>>>>> + #size-cells = <0>;
>>>>>> + dmas = <&dmamux1 75 0x400 0x1>,
>>>>>> + <&dmamux1 76 0x400 0x1>;
>>>>>> + dma-names = "rx", "tx";
>>>>>> + st,syscfg-fmp = <&syscfg 0x4 0x8>;
>>>>>> + i2c-analog-filter;
>>>>>> + feature-domains = <&etzpc 21>;
>>>>>> + status = "disabled";
>>>>>> + };
>>>>>> +
>>>>>> + i2c5: i2c@...06000 {
>>>>>> + compatible = "st,stm32mp13-i2c";
>>>>>> + reg = <0x4c006000 0x400>;
>>>>>> + interrupt-names = "event", "error";
>>>>>> + interrupts = <GIC_SPI 114 IRQ_TYPE_LEVEL_HIGH>,
>>>>>> + <GIC_SPI 115 IRQ_TYPE_LEVEL_HIGH>;
>>>>>> + clocks = <&rcc I2C5_K>;
>>>>>> + resets = <&rcc I2C5_R>;
>>>>>> + #address-cells = <1>;
>>>>>> + #size-cells = <0>;
>>>>>> + dmas = <&dmamux1 115 0x400 0x1>,
>>>>>> + <&dmamux1 116 0x400 0x1>;
>>>>>> + dma-names = "rx", "tx";
>>>>>> + st,syscfg-fmp = <&syscfg 0x4 0x10>;
>>>>>> + i2c-analog-filter;
>>>>>> + feature-domains = <&etzpc 22>;
>>>>>> + status = "disabled";
>>>>>> + };
>>>>>> +
>>>>>> + sdmmc1: mmc@...05000 {
>>>>>> + compatible = "st,stm32-sdmmc2", "arm,pl18x",
>>>>>> "arm,primecell";
>>>>>> + arm,primecell-periphid = <0x20253180>;
>>>>>> + reg = <0x58005000 0x1000>, <0x58006000 0x1000>;
>>>>>> + interrupts = <GIC_SPI 50 IRQ_TYPE_LEVEL_HIGH>;
>>>>>> + clocks = <&rcc SDMMC1_K>;
>>>>>> + clock-names = "apb_pclk";
>>>>>> + resets = <&rcc SDMMC1_R>;
>>>>>> + cap-sd-highspeed;
>>>>>> + cap-mmc-highspeed;
>>>>>> + max-frequency = <130000000>;
>>>>>> + feature-domains = <&etzpc 50>;
>>>>>> + status = "disabled";
>>>>>> + };
>>>>>> +
>>>>>> + sdmmc2: mmc@...07000 {
>>>>>> + compatible = "st,stm32-sdmmc2", "arm,pl18x",
>>>>>> "arm,primecell";
>>>>>> + arm,primecell-periphid = <0x20253180>;
>>>>>> + reg = <0x58007000 0x1000>, <0x58008000 0x1000>;
>>>>>> + interrupts = <GIC_SPI 108 IRQ_TYPE_LEVEL_HIGH>;
>>>>>> + clocks = <&rcc SDMMC2_K>;
>>>>>> + clock-names = "apb_pclk";
>>>>>> + resets = <&rcc SDMMC2_R>;
>>>>>> + cap-sd-highspeed;
>>>>>> + cap-mmc-highspeed;
>>>>>> + max-frequency = <130000000>;
>>>>>> + feature-domains = <&etzpc 51>;
>>>>>> + status = "disabled";
>>>>>> + };
>>>>>> +
>>>>>> + usbphyc: usbphyc@...06000 {
>>>>>> + #address-cells = <1>;
>>>>>> + #size-cells = <0>;
>>>>>> + #clock-cells = <0>;
>>>>>> + compatible = "st,stm32mp1-usbphyc";
>>>>>> + reg = <0x5a006000 0x1000>;
>>>>>> + clocks = <&rcc USBPHY_K>;
>>>>>> + resets = <&rcc USBPHY_R>;
>>>>>> + vdda1v1-supply = <®11>;
>>>>>> + vdda1v8-supply = <®18>;
>>>>>> + feature-domains = <&etzpc 5>;
>>>>>> + status = "disabled";
>>>>>> +
>>>>>> + usbphyc_port0: usb-phy@0 {
>>>>>> + #phy-cells = <0>;
>>>>>> + reg = <0>;
>>>>>> + };
>>>>>> +
>>>>>> + usbphyc_port1: usb-phy@1 {
>>>>>> + #phy-cells = <1>;
>>>>>> + reg = <1>;
>>>>>> + };
>>>>>> + };
>>>>>> +
>>>>>> + };
>>>>>> +
>>>>>> /*
>>>>>> * Break node order to solve dependency probe issue
>>>>>> between
>>>>>> * pinctrl and exti.
>>>>>> diff --git a/arch/arm/boot/dts/stm32mp133.dtsi
>>>>>> b/arch/arm/boot/dts/stm32mp133.dtsi
>>>>>> index df451c3c2a26..be6061552683 100644
>>>>>> --- a/arch/arm/boot/dts/stm32mp133.dtsi
>>>>>> +++ b/arch/arm/boot/dts/stm32mp133.dtsi
>>>>>> @@ -33,35 +33,38 @@ m_can2: can@...0f000 {
>>>>>> bosch,mram-cfg = <0x1400 0 0 32 0 0 2 2>;
>>>>>> status = "disabled";
>>>>>> };
>>>>>> + };
>>>>>> +};
>>>>>> - adc_1: adc@...03000 {
>>>>>> - compatible = "st,stm32mp13-adc-core";
>>>>>> - reg = <0x48003000 0x400>;
>>>>>> - interrupts = <GIC_SPI 18 IRQ_TYPE_LEVEL_HIGH>;
>>>>>> - clocks = <&rcc ADC1>, <&rcc ADC1_K>;
>>>>>> - clock-names = "bus", "adc";
>>>>>> - interrupt-controller;
>>>>>> - #interrupt-cells = <1>;
>>>>>> +&etzpc {
>>>>>> + adc_1: adc@...03000 {
>>>>>> + compatible = "st,stm32mp13-adc-core";
>>>>>> + reg = <0x48003000 0x400>;
>>>>>> + interrupts = <GIC_SPI 18 IRQ_TYPE_LEVEL_HIGH>;
>>>>>> + clocks = <&rcc ADC1>, <&rcc ADC1_K>;
>>>>>> + clock-names = "bus", "adc";
>>>>>> + interrupt-controller;
>>>>>> + #interrupt-cells = <1>;
>>>>>> + #address-cells = <1>;
>>>>>> + #size-cells = <0>;
>>>>>> + feature-domains = <&etzpc 32>;
>>>>>> + status = "disabled";
>>>>>> +
>>>>>> + adc1: adc@0 {
>>>>>> + compatible = "st,stm32mp13-adc";
>>>>>> + #io-channel-cells = <1>;
>>>>>> #address-cells = <1>;
>>>>>> #size-cells = <0>;
>>>>>> + reg = <0x0>;
>>>>>> + interrupt-parent = <&adc_1>;
>>>>>> + interrupts = <0>;
>>>>>> + dmas = <&dmamux1 9 0x400 0x80000001>;
>>>>>> + dma-names = "rx";
>>>>>> status = "disabled";
>>>>>> - adc1: adc@0 {
>>>>>> - compatible = "st,stm32mp13-adc";
>>>>>> - #io-channel-cells = <1>;
>>>>>> - #address-cells = <1>;
>>>>>> - #size-cells = <0>;
>>>>>> - reg = <0x0>;
>>>>>> - interrupt-parent = <&adc_1>;
>>>>>> - interrupts = <0>;
>>>>>> - dmas = <&dmamux1 9 0x400 0x80000001>;
>>>>>> - dma-names = "rx";
>>>>>> - status = "disabled";
>>>>>> -
>>>>>> - channel@18 {
>>>>>> - reg = <18>;
>>>>>> - label = "vrefint";
>>>>>> - �� };
>>>>>> + channel@18 {
>>>>>> + reg = <18>;
>>>>>> + label = "vrefint";
>>>>>> };
>>>>>> };
>>>>>> };
>>>>>> diff --git a/arch/arm/boot/dts/stm32mp13xc.dtsi
>>>>>> b/arch/arm/boot/dts/stm32mp13xc.dtsi
>>>>>> index 4d00e7592882..a1a7a40c2a3e 100644
>>>>>> --- a/arch/arm/boot/dts/stm32mp13xc.dtsi
>>>>>> +++ b/arch/arm/boot/dts/stm32mp13xc.dtsi
>>>>>> @@ -4,15 +4,14 @@
>>>>>> * Author: Alexandre Torgue <alexandre.torgue@...s.st.com> for
>>>>>> STMicroelectronics.
>>>>>> */
>>>>>> -/ {
>>>>>> - soc {
>>>>>> - cryp: crypto@...02000 {
>>>>>> - compatible = "st,stm32mp1-cryp";
>>>>>> - reg = <0x54002000 0x400>;
>>>>>> - interrupts = <GIC_SPI 80 IRQ_TYPE_LEVEL_HIGH>;
>>>>>> - clocks = <&rcc CRYP1>;
>>>>>> - resets = <&rcc CRYP1_R>;
>>>>>> - status = "disabled";
>>>>>> - };
>>>>>> +&etzpc {
>>>>>> + cryp: crypto@...02000 {
>>>>>> + compatible = "st,stm32mp1-cryp";
>>>>>> + reg = <0x54002000 0x400>;
>>>>>> + interrupts = <GIC_SPI 80 IRQ_TYPE_LEVEL_HIGH>;
>>>>>> + clocks = <&rcc CRYP1>;
>>>>>> + resets = <&rcc CRYP1_R>;
>>>>>> + feature-domains = <&etzpc 42>;
>>>>>> + status = "disabled";
>>>>>> };
>>>>>> };
>>>>>> diff --git a/arch/arm/boot/dts/stm32mp13xf.dtsi
>>>>>> b/arch/arm/boot/dts/stm32mp13xf.dtsi
>>>>>> index 4d00e7592882..b9fb071a1471 100644
>>>>>> --- a/arch/arm/boot/dts/stm32mp13xf.dtsi
>>>>>> +++ b/arch/arm/boot/dts/stm32mp13xf.dtsi
>>>>>> @@ -4,15 +4,13 @@
>>>>>> * Author: Alexandre Torgue <alexandre.torgue@...s.st.com> for
>>>>>> STMicroelectronics.
>>>>>> */
>>>>>> -/ {
>>>>>> - soc {
>>>>>> - cryp: crypto@...02000 {
>>>>>> - compatible = "st,stm32mp1-cryp";
>>>>>> - reg = <0x54002000 0x400>;
>>>>>> - interrupts = <GIC_SPI 80 IRQ_TYPE_LEVEL_HIGH>;
>>>>>> - clocks = <&rcc CRYP1>;
>>>>>> - resets = <&rcc CRYP1_R>;
>>>>>> - status = "disabled";
>>>>>> - };
>>>>>> +&etzpc {
>>>>>> + cryp: crypto@...02000 {
>>>>>> + compatible = "st,stm32mp1-cryp";
>>>>>> + reg = <0x54002000 0x400>;
>>>>>> + interrupts = <GIC_SPI 80 IRQ_TYPE_LEVEL_HIGH>;
>>>>>> + clocks = <&rcc CRYP1>;
>>>>>> + resets = <&rcc CRYP1_R>;
>>>>>> + status = "disabled";
>>>>>> };
>>>>>> };
>>>>>
>>>>
>>>
>>> Regarding the patch itself, I can separate it in two patches.
>>> 1)Introduce ETZPC
>>> 2)Move peripherals under ETZPC
>>>
>>> Best regards,
>>> Gatien
>>>
>>
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