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author | Peter Robinson <pbrobinson@gmail.com> | 2017-07-22 15:12:59 +0100 |
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committer | Peter Robinson <pbrobinson@gmail.com> | 2017-07-22 15:12:59 +0100 |
commit | 503a87a1a307384baeaad540ecb8b6b251f6e7e4 (patch) | |
tree | 6bf713f6134c1b4b8856f511fb6179789ad986b0 /bcm283x-Define-UART-pinmuxing-on-board-level.patch | |
parent | 9bcf3a0532108f856a0cd21bb914c4522d1e305b (diff) | |
download | kernel-503a87a1a307384baeaad540ecb8b6b251f6e7e4.tar.gz kernel-503a87a1a307384baeaad540ecb8b6b251f6e7e4.tar.xz kernel-503a87a1a307384baeaad540ecb8b6b251f6e7e4.zip |
Fixes for Raspberry Pi UARTS (hopefully Bluetooth too) and SD/mmc controllers, and an IRQ controller fix
Diffstat (limited to 'bcm283x-Define-UART-pinmuxing-on-board-level.patch')
-rw-r--r-- | bcm283x-Define-UART-pinmuxing-on-board-level.patch | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/bcm283x-Define-UART-pinmuxing-on-board-level.patch b/bcm283x-Define-UART-pinmuxing-on-board-level.patch new file mode 100644 index 000000000..26efe9007 --- /dev/null +++ b/bcm283x-Define-UART-pinmuxing-on-board-level.patch @@ -0,0 +1,171 @@ +From patchwork Thu Jul 20 19:37:07 2017 +Content-Type: text/plain; charset="utf-8" +MIME-Version: 1.0 +Content-Transfer-Encoding: 7bit +Subject: [1/3] ARM: bcm283x: Define UART pinmuxing on board level +From: Stefan Wahren <stefan.wahren@i2se.com> +X-Patchwork-Id: 9855625 +Message-Id: <1500579429-9101-2-git-send-email-stefan.wahren@i2se.com> +To: Eric Anholt <eric@anholt.net>, Rob Herring <robh+dt@kernel.org>, + Mark Rutland <mark.rutland@arm.com> +Cc: Stefan Wahren <stefan.wahren@i2se.com>, devicetree@vger.kernel.org, + Florian Fainelli <f.fainelli@gmail.com>, + Scott Branden <sbranden@broadcom.com>, + linux-rpi-kernel@lists.infradead.org, + linux-arm-kernel@lists.infradead.org, Gerd Hoffmann <kraxel@redhat.com> +Date: Thu, 20 Jul 2017 21:37:07 +0200 + +Until RPI 3 and Zero W the pl011 (uart0) was always on pin 14/15. So in +order to take care of them and other boards in the future, +we need to define UART pinmuxing on board level. + +This work based on Eric Anholt's patch "ARM: bcm2385: Don't force pl011 +onto pins 14/15." and Fabian Vogt's patch "ARM64: dts: bcm2837: assign +uart0 to BT and uart1 to pin headers". + +Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> +--- + arch/arm/boot/dts/bcm2835-rpi-a-plus.dts | 6 ++++++ + arch/arm/boot/dts/bcm2835-rpi-a.dts | 6 ++++++ + arch/arm/boot/dts/bcm2835-rpi-b-plus.dts | 6 ++++++ + arch/arm/boot/dts/bcm2835-rpi-b-rev2.dts | 6 ++++++ + arch/arm/boot/dts/bcm2835-rpi-b.dts | 6 ++++++ + arch/arm/boot/dts/bcm2835-rpi-zero.dts | 6 ++++++ + arch/arm/boot/dts/bcm2835-rpi.dtsi | 2 +- + arch/arm/boot/dts/bcm2836-rpi-2-b.dts | 6 ++++++ + arch/arm64/boot/dts/broadcom/bcm2837-rpi-3-b.dts | 10 ++++++++++ + 9 files changed, 53 insertions(+), 1 deletion(-) + +diff --git a/arch/arm/boot/dts/bcm2835-rpi-a-plus.dts b/arch/arm/boot/dts/bcm2835-rpi-a-plus.dts +index d070454..9f86649 100644 +--- a/arch/arm/boot/dts/bcm2835-rpi-a-plus.dts ++++ b/arch/arm/boot/dts/bcm2835-rpi-a-plus.dts +@@ -99,3 +99,9 @@ + &hdmi { + hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>; + }; ++ ++&uart0 { ++ pinctrl-names = "default"; ++ pinctrl-0 = <&uart0_gpio14>; ++ status = "okay"; ++}; +diff --git a/arch/arm/boot/dts/bcm2835-rpi-a.dts b/arch/arm/boot/dts/bcm2835-rpi-a.dts +index 46d078e..4b1af06 100644 +--- a/arch/arm/boot/dts/bcm2835-rpi-a.dts ++++ b/arch/arm/boot/dts/bcm2835-rpi-a.dts +@@ -94,3 +94,9 @@ + &hdmi { + hpd-gpios = <&gpio 46 GPIO_ACTIVE_HIGH>; + }; ++ ++&uart0 { ++ pinctrl-names = "default"; ++ pinctrl-0 = <&uart0_gpio14>; ++ status = "okay"; ++}; +diff --git a/arch/arm/boot/dts/bcm2835-rpi-b-plus.dts b/arch/arm/boot/dts/bcm2835-rpi-b-plus.dts +index 432088e..a846f1e 100644 +--- a/arch/arm/boot/dts/bcm2835-rpi-b-plus.dts ++++ b/arch/arm/boot/dts/bcm2835-rpi-b-plus.dts +@@ -101,3 +101,9 @@ + &hdmi { + hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>; + }; ++ ++&uart0 { ++ pinctrl-names = "default"; ++ pinctrl-0 = <&uart0_gpio14>; ++ status = "okay"; ++}; +diff --git a/arch/arm/boot/dts/bcm2835-rpi-b-rev2.dts b/arch/arm/boot/dts/bcm2835-rpi-b-rev2.dts +index 4133bc2..e860964 100644 +--- a/arch/arm/boot/dts/bcm2835-rpi-b-rev2.dts ++++ b/arch/arm/boot/dts/bcm2835-rpi-b-rev2.dts +@@ -94,3 +94,9 @@ + &hdmi { + hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>; + }; ++ ++&uart0 { ++ pinctrl-names = "default"; ++ pinctrl-0 = <&uart0_gpio14>; ++ status = "okay"; ++}; +diff --git a/arch/arm/boot/dts/bcm2835-rpi-b.dts b/arch/arm/boot/dts/bcm2835-rpi-b.dts +index 4d56fe3..5d77f3f 100644 +--- a/arch/arm/boot/dts/bcm2835-rpi-b.dts ++++ b/arch/arm/boot/dts/bcm2835-rpi-b.dts +@@ -89,3 +89,9 @@ + &hdmi { + hpd-gpios = <&gpio 46 GPIO_ACTIVE_HIGH>; + }; ++ ++&uart0 { ++ pinctrl-names = "default"; ++ pinctrl-0 = <&uart0_gpio14>; ++ status = "okay"; ++}; +diff --git a/arch/arm/boot/dts/bcm2835-rpi-zero.dts b/arch/arm/boot/dts/bcm2835-rpi-zero.dts +index 79a20d5..7036240 100644 +--- a/arch/arm/boot/dts/bcm2835-rpi-zero.dts ++++ b/arch/arm/boot/dts/bcm2835-rpi-zero.dts +@@ -103,3 +103,9 @@ + &hdmi { + hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>; + }; ++ ++&uart0 { ++ pinctrl-names = "default"; ++ pinctrl-0 = <&uart0_gpio14>; ++ status = "okay"; ++}; +diff --git a/arch/arm/boot/dts/bcm2835-rpi.dtsi b/arch/arm/boot/dts/bcm2835-rpi.dtsi +index e55b362..e36c392 100644 +--- a/arch/arm/boot/dts/bcm2835-rpi.dtsi ++++ b/arch/arm/boot/dts/bcm2835-rpi.dtsi +@@ -39,7 +39,7 @@ + }; + + alt0: alt0 { +- brcm,pins = <4 5 7 8 9 10 11 14 15>; ++ brcm,pins = <4 5 7 8 9 10 11>; + brcm,function = <BCM2835_FSEL_ALT0>; + }; + }; +diff --git a/arch/arm/boot/dts/bcm2836-rpi-2-b.dts b/arch/arm/boot/dts/bcm2836-rpi-2-b.dts +index bf19e8c..e8de414 100644 +--- a/arch/arm/boot/dts/bcm2836-rpi-2-b.dts ++++ b/arch/arm/boot/dts/bcm2836-rpi-2-b.dts +@@ -39,3 +39,9 @@ + &hdmi { + hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>; + }; ++ ++&uart0 { ++ pinctrl-names = "default"; ++ pinctrl-0 = <&uart0_gpio14>; ++ status = "okay"; ++}; +diff --git a/arch/arm64/boot/dts/broadcom/bcm2837-rpi-3-b.dts b/arch/arm64/boot/dts/broadcom/bcm2837-rpi-3-b.dts +index 972f14d..20725ca 100644 +--- a/arch/arm64/boot/dts/broadcom/bcm2837-rpi-3-b.dts ++++ b/arch/arm64/boot/dts/broadcom/bcm2837-rpi-3-b.dts +@@ -19,7 +19,17 @@ + }; + }; + ++/* uart0 communicates with the BT module */ ++&uart0 { ++ pinctrl-names = "default"; ++ pinctrl-0 = <&uart0_ctsrts_gpio30 &gpclk2_gpio43>; ++ status = "okay"; ++}; ++ ++/* uart1 is mapped to the pin header */ + &uart1 { ++ pinctrl-names = "default"; ++ pinctrl-0 = <&uart1_gpio14>; + status = "okay"; + }; + |