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Date: Tue, 25 Apr 2023 09:56:19 +0200
From: Gatien CHEVALLIER <gatien.chevallier@...s.st.com>
To: Oleksii Moisieiev <Oleksii_Moisieiev@...m.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
On 4/21/23 12:19, Oleksii Moisieiev wrote:
> 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.
>
Hello Oleksii,
I need to rework this patch series before resubmitting it. I did not
forget it :) I'd like to provide a good use-case on how to property can
be used and maybe narrow down its perimeter/use-cases.
Peng, to which extent are you interested in this binding? What would be
your use-case?
Best regards,
Gatien
> 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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