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From: Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
To: Alexandre Belloni <alexandre.belloni@bootlin.com>,
	Alessandro Zummo <a.zummo@towertech.it>
Cc: linux-rtc@vger.kernel.org, devicetree@vger.kernel.org,
	"Emmanuel Gil Peyrot" <linkmauve@linkmauve.fr>,
	linux-kernel@vger.kernel.org,
	rw-r-r-0644 <r.r.qwertyuiop.r.r@gmail.com>,
	"Rob Herring" <robh+dt@kernel.org>,
	"Paul Mackerras" <paulus@samba.org>,
	"Ash Logan" <ash@heyquark.com>,
	linuxppc-dev@lists.ozlabs.org,
	"Jonathan Neuschäfer" <j.ne@posteo.net>
Subject: [PATCH v3 3/5] powerpc: wii.dts: Expose HW_SRNPROT on this platform
Date: Wed, 15 Dec 2021 18:54:59 +0100	[thread overview]
Message-ID: <20211215175501.6761-4-linkmauve@linkmauve.fr> (raw)
In-Reply-To: <20211215175501.6761-1-linkmauve@linkmauve.fr>

This Hollywood register isn’t properly understood, but can allow or
reject access to the SRAM, which we need to set for RTC usage if it
isn’t previously set correctly beforehand.

See https://wiibrew.org/wiki/Hardware/Hollywood_Registers#HW_SRNPROT

Signed-off-by: Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
---
 arch/powerpc/boot/dts/wii.dts | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/powerpc/boot/dts/wii.dts b/arch/powerpc/boot/dts/wii.dts
index c5720fdd0686..34d9732d5910 100644
--- a/arch/powerpc/boot/dts/wii.dts
+++ b/arch/powerpc/boot/dts/wii.dts
@@ -175,6 +175,11 @@ PIC1: pic1@d800030 {
 			interrupts = <14>;
 		};
 
+		srnprot@d800060 {
+			compatible = "nintendo,hollywood-srnprot";
+			reg = <0x0d800060 0x4>;
+		};
+
 		GPIO: gpio@d8000c0 {
 			#gpio-cells = <2>;
 			compatible = "nintendo,hollywood-gpio";
-- 
2.34.1


WARNING: multiple messages have this Message-ID (diff)
From: Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
To: Alexandre Belloni <alexandre.belloni@bootlin.com>,
	Alessandro Zummo <a.zummo@towertech.it>
Cc: "Emmanuel Gil Peyrot" <linkmauve@linkmauve.fr>,
	rw-r-r-0644 <r.r.qwertyuiop.r.r@gmail.com>,
	"Ash Logan" <ash@heyquark.com>,
	"Jonathan Neuschäfer" <j.ne@posteo.net>,
	"Rob Herring" <robh+dt@kernel.org>,
	"Michael Ellerman" <mpe@ellerman.id.au>,
	"Benjamin Herrenschmidt" <benh@kernel.crashing.org>,
	"Paul Mackerras" <paulus@samba.org>,
	linux-kernel@vger.kernel.org, linux-rtc@vger.kernel.org,
	linuxppc-dev@lists.ozlabs.org, devicetree@vger.kernel.org
Subject: [PATCH v3 3/5] powerpc: wii.dts: Expose HW_SRNPROT on this platform
Date: Wed, 15 Dec 2021 18:54:59 +0100	[thread overview]
Message-ID: <20211215175501.6761-4-linkmauve@linkmauve.fr> (raw)
In-Reply-To: <20211215175501.6761-1-linkmauve@linkmauve.fr>

This Hollywood register isn’t properly understood, but can allow or
reject access to the SRAM, which we need to set for RTC usage if it
isn’t previously set correctly beforehand.

See https://wiibrew.org/wiki/Hardware/Hollywood_Registers#HW_SRNPROT

Signed-off-by: Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
---
 arch/powerpc/boot/dts/wii.dts | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/powerpc/boot/dts/wii.dts b/arch/powerpc/boot/dts/wii.dts
index c5720fdd0686..34d9732d5910 100644
--- a/arch/powerpc/boot/dts/wii.dts
+++ b/arch/powerpc/boot/dts/wii.dts
@@ -175,6 +175,11 @@ PIC1: pic1@d800030 {
 			interrupts = <14>;
 		};
 
+		srnprot@d800060 {
+			compatible = "nintendo,hollywood-srnprot";
+			reg = <0x0d800060 0x4>;
+		};
+
 		GPIO: gpio@d8000c0 {
 			#gpio-cells = <2>;
 			compatible = "nintendo,hollywood-gpio";
-- 
2.34.1


  parent reply	other threads:[~2021-12-15 17:56 UTC|newest]

Thread overview: 48+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-14 22:05 [PATCH] rtc: nintendo: Add a RTC driver for the GameCube, Wii and Wii U Emmanuel Gil Peyrot
2021-10-27 16:45 ` Alexandre Belloni
2021-10-27 17:05   ` Emmanuel Gil Peyrot
2021-10-27 17:09     ` Emmanuel Gil Peyrot
2021-10-27 20:32     ` Alexandre Belloni
2021-10-28 20:32   ` Jonathan Neuschäfer
2021-10-28 21:34     ` Emmanuel Gil Peyrot
2021-10-29 11:06       ` Jonathan Neuschäfer
2021-10-27 22:35 ` [PATCH v2 0/5] " Emmanuel Gil Peyrot
2021-10-27 22:35   ` Emmanuel Gil Peyrot
2021-10-27 22:35   ` [PATCH v2 1/5] rtc: gamecube: " Emmanuel Gil Peyrot
2021-10-27 22:35     ` Emmanuel Gil Peyrot
2021-10-27 22:35   ` [PATCH v2 2/5] rtc: gamecube: Report low battery as invalid data Emmanuel Gil Peyrot
2021-10-27 22:35     ` Emmanuel Gil Peyrot
2021-11-30 22:45     ` Alexandre Belloni
2021-11-30 22:45       ` Alexandre Belloni
2021-12-15 17:52       ` Emmanuel Gil Peyrot
2021-12-15 17:52         ` Emmanuel Gil Peyrot
2021-10-27 22:35   ` [PATCH v2 3/5] powerpc: wii.dts: Expose HW_SRNPROT on this platform Emmanuel Gil Peyrot
2021-10-27 22:35     ` Emmanuel Gil Peyrot
2021-10-27 22:35   ` [PATCH v2 4/5] powerpc: gamecube_defconfig: Enable the RTC driver Emmanuel Gil Peyrot
2021-10-27 22:35     ` Emmanuel Gil Peyrot
2021-10-27 22:35   ` [PATCH v2 5/5] powerpc: wii_defconfig: " Emmanuel Gil Peyrot
2021-10-27 22:35     ` Emmanuel Gil Peyrot
2021-12-15 17:54   ` [PATCH v3 0/5] rtc: nintendo: Add a RTC driver for the GameCube, Wii and Wii U Emmanuel Gil Peyrot
2021-12-15 17:54     ` Emmanuel Gil Peyrot
2021-12-15 17:54     ` [PATCH v3 1/5] rtc: gamecube: " Emmanuel Gil Peyrot
2021-12-15 17:54       ` Emmanuel Gil Peyrot
2021-12-15 17:54     ` [PATCH v3 2/5] rtc: gamecube: Report low battery as invalid data Emmanuel Gil Peyrot
2021-12-15 17:54       ` Emmanuel Gil Peyrot
2021-12-15 17:54     ` Emmanuel Gil Peyrot [this message]
2021-12-15 17:54       ` [PATCH v3 3/5] powerpc: wii.dts: Expose HW_SRNPROT on this platform Emmanuel Gil Peyrot
2021-12-15 17:55     ` [PATCH v3 4/5] powerpc: gamecube_defconfig: Enable the RTC driver Emmanuel Gil Peyrot
2021-12-15 17:55       ` Emmanuel Gil Peyrot
2021-12-15 17:55     ` [PATCH v3 5/5] powerpc: wii_defconfig: " Emmanuel Gil Peyrot
2021-12-15 17:55       ` Emmanuel Gil Peyrot
2021-12-16  4:52     ` [PATCH v3 0/5] rtc: nintendo: Add a RTC driver for the GameCube, Wii and Wii U Michael Ellerman
2021-12-16  4:52       ` Michael Ellerman
2021-12-16  9:50       ` Alexandre Belloni
2021-12-16  9:50         ` Alexandre Belloni
2021-12-16  9:49     ` Alexandre Belloni
2021-12-16  9:49       ` Alexandre Belloni
2021-12-16 20:22       ` Emmanuel Gil Peyrot
2021-12-16 20:22         ` Emmanuel Gil Peyrot
2021-12-16 20:56         ` Alexandre Belloni
2021-12-16 20:56           ` Alexandre Belloni
2021-12-16 20:58           ` Emmanuel Gil Peyrot
2021-12-16 20:58             ` Emmanuel Gil Peyrot

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