diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.4/0208-BCM270X_DT-Remove-explicit-claiming-of-UART-pins.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.4/0208-BCM270X_DT-Remove-explicit-claiming-of-UART-pins.patch | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.4/0208-BCM270X_DT-Remove-explicit-claiming-of-UART-pins.patch b/target/linux/brcm2708/patches-4.4/0208-BCM270X_DT-Remove-explicit-claiming-of-UART-pins.patch new file mode 100644 index 0000000000..35927a9a4b --- /dev/null +++ b/target/linux/brcm2708/patches-4.4/0208-BCM270X_DT-Remove-explicit-claiming-of-UART-pins.patch @@ -0,0 +1,89 @@ +From f26e0311778ed510125e3d83ebf22109dc986835 Mon Sep 17 00:00:00 2001 +From: Phil Elwell <phil@raspberrypi.org> +Date: Sat, 19 Mar 2016 16:51:37 +0000 +Subject: [PATCH 208/304] BCM270X_DT: Remove explicit claiming of UART pins + +It is convenient to be able to map a different function to the UART +pins (e.g. DPI for vga666) without having to disable the UART first. + +Signed-off-by: Phil Elwell <phil@raspberrypi.org> +--- + arch/arm/boot/dts/bcm2710-rpi-3-b.dts | 6 +++--- + .../boot/dts/overlays/pi3-disable-bt-overlay.dts | 10 ++++----- + .../boot/dts/overlays/pi3-miniuart-bt-overlay.dts | 25 +++++++++++----------- + 3 files changed, 20 insertions(+), 21 deletions(-) + +--- a/arch/arm/boot/dts/bcm2710-rpi-3-b.dts ++++ b/arch/arm/boot/dts/bcm2710-rpi-3-b.dts +@@ -57,9 +57,9 @@ + }; + + uart1_pins: uart1_pins { +- brcm,pins = <14 15>; +- brcm,function = <2>; /* alt5=UART1 */ +- brcm,pull = <0 2>; ++ brcm,pins; ++ brcm,function; ++ brcm,pull; + }; + }; + +--- a/arch/arm/boot/dts/overlays/pi3-disable-bt-overlay.dts ++++ b/arch/arm/boot/dts/overlays/pi3-disable-bt-overlay.dts +@@ -28,13 +28,11 @@ + }; + + fragment@2 { +- target = <&gpio>; ++ target = <&uart0_pins>; + __overlay__ { +- uart0_pins: uart0_pins { +- brcm,pins = <14 15>; +- brcm,function = <4>; /* alt0 */ +- brcm,pull = <0 2>; +- }; ++ brcm,pins; ++ brcm,function; ++ brcm,pull; + }; + }; + +--- a/arch/arm/boot/dts/overlays/pi3-miniuart-bt-overlay.dts ++++ b/arch/arm/boot/dts/overlays/pi3-miniuart-bt-overlay.dts +@@ -37,23 +37,24 @@ + }; + + fragment@2 { +- target = <&gpio>; ++ target = <&uart0_pins>; + __overlay__ { +- uart0_pins: uart0_pins { +- brcm,pins = <14 15>; +- brcm,function = <4>; /* alt0 */ +- brcm,pull = <0 2>; +- }; +- +- uart1_pins: uart1_pins { +- brcm,pins = <32 33>; +- brcm,function = <2>; /* alt5=UART1 */ +- brcm,pull = <0 2>; +- }; ++ brcm,pins; ++ brcm,function; ++ brcm,pull; + }; + }; + + fragment@3 { ++ target = <&uart1_pins>; ++ __overlay__ { ++ brcm,pins = <32 33>; ++ brcm,function = <2>; /* alt5=UART1 */ ++ brcm,pull = <0 2>; ++ }; ++ }; ++ ++ fragment@4 { + target-path = "/aliases"; + __overlay__ { + serial0 = "/soc/uart@7e201000"; |