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kernel/bcm283x-fixes.patch

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From patchwork Sun Jan 29 18:40:59 2017
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Subject: [v2] ARM: bcm2835: dts: fix uart0 pinctrl node names
From: Baruch Siach <baruch@tkos.co.il>
X-Patchwork-Id: 9544261
Message-Id: <f37d02c769d0e2b6db2529cafb86b5fdd1e09a94.1485715259.git.baruch@tkos.co.il>
To: Stephen Warren <swarren@wwwdotorg.org>, Lee Jones <lee@kernel.org>,
Eric Anholt <eric@anholt.net>
Cc: Baruch Siach <baruch@tkos.co.il>, linux-rpi-kernel@lists.infradead.org,
linux-arm-kernel@lists.infradead.org
Date: Sun, 29 Jan 2017 20:40:59 +0200
Downstream kernel uses pins 32, 33 as UART0 (PL011) Rx/Tx to communicate with
the Bluetooth chip. So ALT3 of these pins is most likely not CTS/RTS. Change
the node name to reflect that. This matches section 6.2 "Alternative Function
Assignments" in the BCM2835 ARM Peripherals document.
With this change in place, adding
&uart0 {
pinctrl-names = "default";
pinctrl-0 = <&uart0_gpio32 &gpclk2_gpio43>;
status = "okay";
};
to bcm2837-rpi-3-b.dts does the right thing on my Raspberry Pi 3.
Pins 30, 31 are CTS/RTS of UART0 in alternate function 3. Rename uart0_gpio30
as well.
While at it, fix a little typo in a nearby comment.
Fixes: 21ff843931b ("ARM: dts: bcm283x: Define standard pinctrl groups in the gpio node.")
Acked-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Reviewed-by: Eric Anholt <eric@anholt.net>
---
v2:
* Reference the ARM Peripherals document
* Fix subject typo (Stefan)
* Rename also uart0_gpio30 (Stefan)
* Add comment typo fix (Stefan)
* Add Stefan's ack
---
arch/arm/boot/dts/bcm283x.dtsi | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/arch/arm/boot/dts/bcm283x.dtsi b/arch/arm/boot/dts/bcm283x.dtsi
index 9a44da190897..bc8ad417c8a3 100644
--- a/arch/arm/boot/dts/bcm283x.dtsi
+++ b/arch/arm/boot/dts/bcm283x.dtsi
@@ -292,17 +292,17 @@
/* Separate from the uart0_gpio14 group
* because it conflicts with spi1_gpio16, and
* people often run uart0 on the two pins
- * without flow contrl.
+ * without flow control.
*/
uart0_ctsrts_gpio16: uart0_ctsrts_gpio16 {
brcm,pins = <16 17>;
brcm,function = <BCM2835_FSEL_ALT3>;
};
- uart0_gpio30: uart0_gpio30 {
+ uart0_ctsrts_gpio30: uart0_ctsrts_gpio30 {
brcm,pins = <30 31>;
brcm,function = <BCM2835_FSEL_ALT3>;
};
- uart0_ctsrts_gpio32: uart0_ctsrts_gpio32 {
+ uart0_gpio32: uart0_gpio32 {
brcm,pins = <32 33>;
brcm,function = <BCM2835_FSEL_ALT3>;
};
From patchwork Sun Jan 29 19:53:10 2017
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Subject: [1/2] ARM: bcm2835: dts: fix i2c0 pins
From: Baruch Siach <baruch@tkos.co.il>
X-Patchwork-Id: 9544275
Message-Id: <9290fa9eed6b5ff1c5c96b9dac41eca286b7eef9.1485719591.git.baruch@tkos.co.il>
To: Stephen Warren <swarren@wwwdotorg.org>, Lee Jones <lee@kernel.org>,
Eric Anholt <eric@anholt.net>
Cc: Baruch Siach <baruch@tkos.co.il>, linux-rpi-kernel@lists.infradead.org,
linux-arm-kernel@lists.infradead.org
Date: Sun, 29 Jan 2017 21:53:10 +0200
According to the BCM2835 ARM Peripherals document i2c0 doesn't map to pins 32,
34 but to 28, 29.
Fixes: 21ff843931b ("ARM: dts: bcm283x: Define standard pinctrl groups in the gpio node.")
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
---
arch/arm/boot/dts/bcm283x.dtsi | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/arm/boot/dts/bcm283x.dtsi b/arch/arm/boot/dts/bcm283x.dtsi
index bc8ad417c8a3..2ae842921250 100644
--- a/arch/arm/boot/dts/bcm283x.dtsi
+++ b/arch/arm/boot/dts/bcm283x.dtsi
@@ -195,8 +195,8 @@
brcm,pins = <0 1>;
brcm,function = <BCM2835_FSEL_ALT0>;
};
- i2c0_gpio32: i2c0_gpio32 {
- brcm,pins = <32 34>;
+ i2c0_gpio28: i2c0_gpio28 {
+ brcm,pins = <28 29>;
brcm,function = <BCM2835_FSEL_ALT0>;
};
i2c0_gpio44: i2c0_gpio44 {
From patchwork Sun Jan 29 19:53:11 2017
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MIME-Version: 1.0
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Subject: [2/2] ARM: bcm2835: dts: fix uart0/uart1 pins
From: Baruch Siach <baruch@tkos.co.il>
X-Patchwork-Id: 9544277
Message-Id: <e0f527a24b0048daba88ef36d5324245e003111c.1485719591.git.baruch@tkos.co.il>
To: Stephen Warren <swarren@wwwdotorg.org>, Lee Jones <lee@kernel.org>,
Eric Anholt <eric@anholt.net>
Cc: Baruch Siach <baruch@tkos.co.il>, linux-rpi-kernel@lists.infradead.org,
linux-arm-kernel@lists.infradead.org
Date: Sun, 29 Jan 2017 21:53:11 +0200
According to the BCM2835 ARM Peripherals document uart1 doesn't map to pins
36-39, but uart0 does.
Also, split into separate Rx/Tx and CST/RTS groups to match other uart nodes.
Fixes: 21ff843931b ("ARM: dts: bcm283x: Define standard pinctrl groups in the gpio node.")
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
---
arch/arm/boot/dts/bcm283x.dtsi | 12 ++++++++----
1 file changed, 8 insertions(+), 4 deletions(-)
diff --git a/arch/arm/boot/dts/bcm283x.dtsi b/arch/arm/boot/dts/bcm283x.dtsi
index 2ae842921250..9ee8346b8b19 100644
--- a/arch/arm/boot/dts/bcm283x.dtsi
+++ b/arch/arm/boot/dts/bcm283x.dtsi
@@ -306,6 +306,14 @@
brcm,pins = <32 33>;
brcm,function = <BCM2835_FSEL_ALT3>;
};
+ uart0_gpio36: uart0_gpio36 {
+ brcm,pins = <36 37>;
+ brcm,function = <BCM2835_FSEL_ALT2>;
+ };
+ uart0_ctsrts_gpio38: uart0_ctsrts_gpio38 {
+ brcm,pins = <38 39>;
+ brcm,function = <BCM2835_FSEL_ALT2>;
+ };
uart1_gpio14: uart1_gpio14 {
brcm,pins = <14 15>;
@@ -323,10 +331,6 @@
brcm,pins = <30 31>;
brcm,function = <BCM2835_FSEL_ALT5>;
};
- uart1_gpio36: uart1_gpio36 {
- brcm,pins = <36 37 38 39>;
- brcm,function = <BCM2835_FSEL_ALT2>;
- };
uart1_gpio40: uart1_gpio40 {
brcm,pins = <40 41>;
brcm,function = <BCM2835_FSEL_ALT5>;
From patchwork Mon Jan 30 18:44:39 2017
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MIME-Version: 1.0
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Subject: ARM: bcm2835: dt: add index to the ethernet alias
From: Baruch Siach <baruch@tkos.co.il>
X-Patchwork-Id: 9545945
Message-Id: <5942321c5d0bfea54eac64ace2b217e8e0b6220d.1485801879.git.baruch@tkos.co.il>
To: Stephen Warren <swarren@wwwdotorg.org>, Lee Jones <lee@kernel.org>,
Eric Anholt <eric@anholt.net>
Cc: Lubomir Rintel <lkundrak@v3.sk>, Baruch Siach <baruch@tkos.co.il>,
linux-rpi-kernel@lists.infradead.org, linux-arm-kernel@lists.infradead.org
Date: Mon, 30 Jan 2017 20:44:39 +0200
An alias name should have an index number even when it is the only of its type.
This allows U-Boot to add the local-mac-address property. Otherwise U-Boot
skips the alias.
Cc: Lubomir Rintel <lkundrak@v3.sk>
Fixes: 6a93792774 ("ARM: bcm2835: dt: Add the ethernet to the device trees")
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Acked-by: Lubomir Rintel <lkundrak@v3.sk>
---
arch/arm/boot/dts/bcm283x-rpi-smsc9512.dtsi | 2 +-
arch/arm/boot/dts/bcm283x-rpi-smsc9514.dtsi | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/arm/boot/dts/bcm283x-rpi-smsc9512.dtsi b/arch/arm/boot/dts/bcm283x-rpi-smsc9512.dtsi
index 12c981e51134..9a0599f711ff 100644
--- a/arch/arm/boot/dts/bcm283x-rpi-smsc9512.dtsi
+++ b/arch/arm/boot/dts/bcm283x-rpi-smsc9512.dtsi
@@ -1,6 +1,6 @@
/ {
aliases {
- ethernet = &ethernet;
+ ethernet0 = &ethernet;
};
};
diff --git a/arch/arm/boot/dts/bcm283x-rpi-smsc9514.dtsi b/arch/arm/boot/dts/bcm283x-rpi-smsc9514.dtsi
index 3f0a56ebcf1f..dc7ae776db5f 100644
--- a/arch/arm/boot/dts/bcm283x-rpi-smsc9514.dtsi
+++ b/arch/arm/boot/dts/bcm283x-rpi-smsc9514.dtsi
@@ -1,6 +1,6 @@
/ {
aliases {
- ethernet = &ethernet;
+ ethernet0 = &ethernet;
};
};
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