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[176.150.251.154]) by smtp.gmail.com with ESMTPSA id f10sm3245827wml.23.2019.03.16.07.31.58 (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Sat, 16 Mar 2019 07:31:58 -0700 (PDT) Message-ID: <5C8D08DE.7070203@baylibre.com> Date: Sat, 16 Mar 2019 15:31:58 +0100 From: Neil Armstrong User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.13; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 MIME-Version: 1.0 To: Martin Blumenstingl , Jerome Brunet Subject: Re: [PATCH 5/9] arm64: dts: meson: g12a: add reset controller References: <20190307151342.7381-1-narmstrong@baylibre.com> <20190307151342.7381-6-narmstrong@baylibre.com> In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190316_073203_568727_113DF6CB X-CRM114-Status: GOOD ( 18.86 ) X-BeenThere: linux-amlogic@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: khilman@baylibre.com, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-amlogic@lists.infradead.org Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-amlogic" Errors-To: linux-amlogic-bounces+linux-amlogic=archiver.kernel.org@lists.infradead.org CgpMZSAxNS8wMy8yMDE5IDIyOjMxLCBNYXJ0aW4gQmx1bWVuc3RpbmdsIGEgw6ljcml0IDoKPiBI aSBOZWlsIGFuZCBKZXJvbWUsCj4gCj4gT24gVGh1LCBNYXIgNywgMjAxOSBhdCA0OjE0IFBNIE5l aWwgQXJtc3Ryb25nIDxuYXJtc3Ryb25nQGJheWxpYnJlLmNvbT4gd3JvdGU6Cj4+Cj4+IEZyb206 IEplcm9tZSBCcnVuZXQgPGpicnVuZXRAYmF5bGlicmUuY29tPgo+Pgo+PiBBZGQgdGhlIHJlc2V0 IGNvbnRyb2xsZXIgZGV2aWNlIG9mIGcxMmEgU29DIGZhbWlseQo+Pgo+PiBTaWduZWQtb2ZmLWJ5 OiBKZXJvbWUgQnJ1bmV0IDxqYnJ1bmV0QGJheWxpYnJlLmNvbT4KPj4gU2lnbmVkLW9mZi1ieTog TmVpbCBBcm1zdHJvbmcgPG5hcm1zdHJvbmdAYmF5bGlicmUuY29tPgo+PiAtLS0KPj4gIGFyY2gv YXJtNjQvYm9vdC9kdHMvYW1sb2dpYy9tZXNvbi1nMTJhLmR0c2kgfCA3ICsrKysrKysKPj4gIDEg ZmlsZSBjaGFuZ2VkLCA3IGluc2VydGlvbnMoKykKPj4KPj4gZGlmZiAtLWdpdCBhL2FyY2gvYXJt NjQvYm9vdC9kdHMvYW1sb2dpYy9tZXNvbi1nMTJhLmR0c2kgYi9hcmNoL2FybTY0L2Jvb3QvZHRz L2FtbG9naWMvbWVzb24tZzEyYS5kdHNpCj4+IGluZGV4IGY4ZjA1NWM0OWY5YS4uMmE3MDBiYjQ1 ZDA0IDEwMDY0NAo+PiAtLS0gYS9hcmNoL2FybTY0L2Jvb3QvZHRzL2FtbG9naWMvbWVzb24tZzEy YS5kdHNpCj4+ICsrKyBiL2FyY2gvYXJtNjQvYm9vdC9kdHMvYW1sb2dpYy9tZXNvbi1nMTJhLmR0 c2kKPj4gQEAgLTI0NSw2ICsyNDUsMTMgQEAKPj4gICAgICAgICAgICAgICAgICAgICAgICAgI3Np emUtY2VsbHMgPSA8Mj47Cj4+ICAgICAgICAgICAgICAgICAgICAgICAgIHJhbmdlcyA9IDwweDAg MHgwIDB4MCAweGZmZDAwMDAwIDB4MCAweDEwMDAwMD47Cj4+Cj4+ICsgICAgICAgICAgICAgICAg ICAgICAgIHJlc2V0OiByZXNldC1jb250cm9sbGVyQDEwMDQgewo+PiArICAgICAgICAgICAgICAg ICAgICAgICAgICAgICAgIGNvbXBhdGlibGUgPSAiYW1sb2dpYyxtZXNvbi1nMTJhLXJlc2V0IiwK Pj4gKyAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgImFtbG9naWMs bWVzb24tYXhnLXJlc2V0IjsKPj4gKyAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICByZWcg PSA8MHgwIDB4MTAwNCAweDAgMHg5Yz47Cj4+ICsgICAgICAgICAgICAgICAgICAgICAgICAgICAg ICAgI3Jlc2V0LWNlbGxzID0gPDE+Owo+PiArICAgICAgICAgICAgICAgICAgICAgICB9Owo+IEkg dHJpZWQgdG8gY29tcGFyZSB0aGlzIHdpdGggd2hhdCBpcyBwdWJsaWNseSBhdmFpbGFibGUgaW4K PiBidWlsZHJvb3Rfb3BlbmxpbnV4X2tlcm5lbF80LjlfZmJkZXZfMjAxODA3MDYgLSB1bmZvcnR1 bmF0ZWx5IHRoaXMgaXMKPiBoYXJkZXIgdGhhbiBJIHRob3VnaHQ6Cj4gdGhlIGJ1aWxkcm9vdCBr ZXJuZWwgZG9lc24ndCBkZWZpbmUgdGhlIHJlc2V0IGNvbnRyb2xsZXIgaW4gbWVzb25nMTJhLmR0 c2kKPiAKPiBzbyBJIHRyaWVkIHRvIGZvbGxvdyB0aGUgY29kZSBpbiB0aGUgSERNSVRYIGRyaXZl ciBpbnN0ZWFkOgo+IGtlcm5lbC9hbWwtNC45L2RyaXZlcnMvYW1sb2dpYy9tZWRpYS92b3V0L2hk bWl0eC9oZG1pX3R4XzIwL2h3L2h3X3R4bHguYwo+IHVzZXMgUF9SRVNFVDBfUkVHSVNURVIgYW5k IFBfUkVTRVQyX1JFR0lTVEVSCj4gdGhlc2UgYXJlIGRlZmluZWQgaW4KPiBrZXJuZWwvYW1sLTQu OS9kcml2ZXJzL2FtbG9naWMvbWVkaWEvdm91dC9oZG1pdHgvaGRtaV90eF8yMC9ody90eGx4X3Jl Zy5oCj4gdXNpbmc6Cj4+ICNkZWZpbmUgUkVTRVRfQ0JVU19SRUdfSURYIDUKPj4gI2RlZmluZSBC QVNFX1JFR19PRkZTRVQgMjQKPj4gI2RlZmluZSBSRVNFVF9DQlVTX1JFR19BRERSKHJlZykgXAo+ PiAgICAoKFJFU0VUX0NCVVNfUkVHX0lEWCA8PCBCQVNFX1JFR19PRkZTRVQpICsgKHJlZyA8PCAy KSkKPj4KPj4gI2RlZmluZSBSRVNFVDBfUkVHSVNURVIgMHgwMQo+PiAjZGVmaW5lIFBfUkVTRVQw X1JFR0lTVEVSIFJFU0VUX0NCVVNfUkVHX0FERFIoUkVTRVQwX1JFR0lTVEVSKQo+IAo+IHdoZW4g SSBkbyB0aGUgbWF0aHM6Cj4gKDUgPDwgMjQpICsgKDB4MDEgPDwgMikgPSAweDUwMDAwMDQKPiAK PiBUaGUgR1ggU29DcyBoYXZlIHRoZSByZXNldCBjb250cm9sbGVyIGF0IGNidXMgKyAweDQ0MDQK PiBob3dldmVyLCB0aGUgb2Zmc2V0IG1heSBoYXZlIGNoYW5nZWQgaW4gRzEyQSBiZWNhdXNlIHRo ZSBTQVIgQURDCj4gb2Zmc2V0IGFsc28gY2hhbmdlZCAoanVzdCBvbmUgZXhhbXBsZSkuCj4gCj4g RG8geW91IGhhdmUgYW55IGhpbnQgaG93IHRvIHZlcmlmeSB0aGUgQ0JVUyBvZmZzZXQgKDB4MTAw NCkgb2YgdGhlCj4gcmVzZXQgY29udHJvbGxlcj8KCllvdSBjYW4gZmluZCBiYXNlIHRoZSBhZGRy ZXNzIGZvdW5kIGluIHRoZSBHMTJBIERUIGZvciB0aGUgdXNiMiBwaHkgOgpodHRwczovL2dpdGh1 Yi5jb20vaGFyZGtlcm5lbC9saW51eC9ibG9iL29kcm9pZG4yLTQuOS55L2FyY2gvYXJtNjQvYm9v dC9kdHMvYW1sb2dpYy9tZXNvbmcxMmEuZHRzaSNMMzc5CgpOZWlsCgo+IAo+IAo+IFJlZ2FyZHMK PiBNYXJ0aW4KPiAKCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fCmxpbnV4LWFtbG9naWMgbWFpbGluZyBsaXN0CmxpbnV4LWFtbG9naWNAbGlzdHMuaW5mcmFk ZWFkLm9yZwpodHRwOi8vbGlzdHMuaW5mcmFkZWFkLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2xpbnV4 LWFtbG9naWMK From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1B627C43381 for ; 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[176.150.251.154]) by smtp.gmail.com with ESMTPSA id f10sm3245827wml.23.2019.03.16.07.31.58 (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Sat, 16 Mar 2019 07:31:58 -0700 (PDT) Message-ID: <5C8D08DE.7070203@baylibre.com> Date: Sat, 16 Mar 2019 15:31:58 +0100 From: Neil Armstrong User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.13; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 MIME-Version: 1.0 To: Martin Blumenstingl , Jerome Brunet Subject: Re: [PATCH 5/9] arm64: dts: meson: g12a: add reset controller References: <20190307151342.7381-1-narmstrong@baylibre.com> <20190307151342.7381-6-narmstrong@baylibre.com> In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190316_073203_585073_7AB77699 X-CRM114-Status: GOOD ( 20.32 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: khilman@baylibre.com, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-amlogic@lists.infradead.org Content-Type: text/plain; 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[176.150.251.154]) by smtp.gmail.com with ESMTPSA id f10sm3245827wml.23.2019.03.16.07.31.58 (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Sat, 16 Mar 2019 07:31:58 -0700 (PDT) Message-ID: <5C8D08DE.7070203@baylibre.com> Date: Sat, 16 Mar 2019 15:31:58 +0100 From: Neil Armstrong User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.13; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 MIME-Version: 1.0 To: Martin Blumenstingl , Jerome Brunet CC: khilman@baylibre.com, linux-amlogic@lists.infradead.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: Re: [PATCH 5/9] arm64: dts: meson: g12a: add reset controller References: <20190307151342.7381-1-narmstrong@baylibre.com> <20190307151342.7381-6-narmstrong@baylibre.com> In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Le 15/03/2019 22:31, Martin Blumenstingl a écrit : > Hi Neil and Jerome, > > On Thu, Mar 7, 2019 at 4:14 PM Neil Armstrong wrote: >> >> From: Jerome Brunet >> >> Add the reset controller device of g12a SoC family >> >> Signed-off-by: Jerome Brunet >> Signed-off-by: Neil Armstrong >> --- >> arch/arm64/boot/dts/amlogic/meson-g12a.dtsi | 7 +++++++ >> 1 file changed, 7 insertions(+) >> >> diff --git a/arch/arm64/boot/dts/amlogic/meson-g12a.dtsi b/arch/arm64/boot/dts/amlogic/meson-g12a.dtsi >> index f8f055c49f9a..2a700bb45d04 100644 >> --- a/arch/arm64/boot/dts/amlogic/meson-g12a.dtsi >> +++ b/arch/arm64/boot/dts/amlogic/meson-g12a.dtsi >> @@ -245,6 +245,13 @@ >> #size-cells = <2>; >> ranges = <0x0 0x0 0x0 0xffd00000 0x0 0x100000>; >> >> + reset: reset-controller@1004 { >> + compatible = "amlogic,meson-g12a-reset", >> + "amlogic,meson-axg-reset"; >> + reg = <0x0 0x1004 0x0 0x9c>; >> + #reset-cells = <1>; >> + }; > I tried to compare this with what is publicly available in > buildroot_openlinux_kernel_4.9_fbdev_20180706 - unfortunately this is > harder than I thought: > the buildroot kernel doesn't define the reset controller in mesong12a.dtsi > > so I tried to follow the code in the HDMITX driver instead: > kernel/aml-4.9/drivers/amlogic/media/vout/hdmitx/hdmi_tx_20/hw/hw_txlx.c > uses P_RESET0_REGISTER and P_RESET2_REGISTER > these are defined in > kernel/aml-4.9/drivers/amlogic/media/vout/hdmitx/hdmi_tx_20/hw/txlx_reg.h > using: >> #define RESET_CBUS_REG_IDX 5 >> #define BASE_REG_OFFSET 24 >> #define RESET_CBUS_REG_ADDR(reg) \ >> ((RESET_CBUS_REG_IDX << BASE_REG_OFFSET) + (reg << 2)) >> >> #define RESET0_REGISTER 0x01 >> #define P_RESET0_REGISTER RESET_CBUS_REG_ADDR(RESET0_REGISTER) > > when I do the maths: > (5 << 24) + (0x01 << 2) = 0x5000004 > > The GX SoCs have the reset controller at cbus + 0x4404 > however, the offset may have changed in G12A because the SAR ADC > offset also changed (just one example). > > Do you have any hint how to verify the CBUS offset (0x1004) of the > reset controller? You can find base the address found in the G12A DT for the usb2 phy : https://github.com/hardkernel/linux/blob/odroidn2-4.9.y/arch/arm64/boot/dts/amlogic/mesong12a.dtsi#L379 Neil > > > Regards > Martin >