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author | Álvaro Fernández Rojas <noltari@gmail.com> | 2019-08-09 19:50:30 +0200 |
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committer | Álvaro Fernández Rojas <noltari@gmail.com> | 2019-08-27 11:10:01 +0200 |
commit | 2340c646e6a5da658e114be2f721ff90853588d4 (patch) | |
tree | df9744d2344e71e8c5d1b75c3e1528bc474313fe /target/linux/brcm2708/patches-4.19/950-0706-overlays-Add-i2c0-and-i2c1-for-regularity.patch | |
parent | 81d0da118694feb874f992093063a2852285d194 (diff) | |
download | upstream-2340c646e6a5da658e114be2f721ff90853588d4.tar.gz upstream-2340c646e6a5da658e114be2f721ff90853588d4.tar.bz2 upstream-2340c646e6a5da658e114be2f721ff90853588d4.zip |
brcm2708: update to latest patches from RPi foundation
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Diffstat (limited to 'target/linux/brcm2708/patches-4.19/950-0706-overlays-Add-i2c0-and-i2c1-for-regularity.patch')
-rw-r--r-- | target/linux/brcm2708/patches-4.19/950-0706-overlays-Add-i2c0-and-i2c1-for-regularity.patch | 340 |
1 files changed, 340 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.19/950-0706-overlays-Add-i2c0-and-i2c1-for-regularity.patch b/target/linux/brcm2708/patches-4.19/950-0706-overlays-Add-i2c0-and-i2c1-for-regularity.patch new file mode 100644 index 0000000000..f9ad1e47b2 --- /dev/null +++ b/target/linux/brcm2708/patches-4.19/950-0706-overlays-Add-i2c0-and-i2c1-for-regularity.patch @@ -0,0 +1,340 @@ +From 50be150dc853d2ce75215cc220cc6ff0def89a3a Mon Sep 17 00:00:00 2001 +From: Phil Elwell <phil@raspberrypi.org> +Date: Wed, 17 Jul 2019 10:08:55 +0100 +Subject: [PATCH 706/773] overlays: Add i2c0 and i2c1 for regularity + +The new i2c overlays for pi4 (i2c3, i2c4, i2c5, i2c6) have a +standardised interface that allows pin groups to be chosen +atomically rather than as individual pins. Add i2c0 and i2c1 +overlays to fit the naming scheme and parameter usage, deprecating +i2c0-bcm2708 and i2c1-bcm2708. + +Signed-off-by: Phil Elwell <phil@raspberrypi.org> +--- + arch/arm/boot/dts/overlays/Makefile | 2 + + arch/arm/boot/dts/overlays/README | 33 +++++--- + .../dts/overlays/i2c0-bcm2708-overlay.dts | 77 +++---------------- + arch/arm/boot/dts/overlays/i2c0-overlay.dts | 61 +++++++++++++++ + .../dts/overlays/i2c1-bcm2708-overlay.dts | 46 ++--------- + arch/arm/boot/dts/overlays/i2c1-overlay.dts | 44 +++++++++++ + 6 files changed, 147 insertions(+), 116 deletions(-) + create mode 100644 arch/arm/boot/dts/overlays/i2c0-overlay.dts + create mode 100644 arch/arm/boot/dts/overlays/i2c1-overlay.dts + +--- a/arch/arm/boot/dts/overlays/Makefile ++++ b/arch/arm/boot/dts/overlays/Makefile +@@ -66,7 +66,9 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \ + i2c-rtc.dtbo \ + i2c-rtc-gpio.dtbo \ + i2c-sensor.dtbo \ ++ i2c0.dtbo \ + i2c0-bcm2708.dtbo \ ++ i2c1.dtbo \ + i2c1-bcm2708.dtbo \ + i2c3.dtbo \ + i2c4.dtbo \ +--- a/arch/arm/boot/dts/overlays/README ++++ b/arch/arm/boot/dts/overlays/README +@@ -1151,14 +1151,12 @@ Params: addr Set the + sensor + + +-Name: i2c0-bcm2708 ++Name: i2c0 + Info: Change i2c0 pin usage. Not all pin combinations are usable on all + platforms - platforms other then Compute Modules can only use this + to disable transaction combining. +-Load: dtoverlay=i2c0-bcm2708,<param>=<val> +-Params: sda0_pin GPIO pin for SDA0 (deprecated - use pins_*) +- scl0_pin GPIO pin for SCL0 (deprecated - use pins_*) +- pins_0_1 Use pins 0 and 1 (default) ++Load: dtoverlay=i2c0,<param>=<val> ++Params: pins_0_1 Use pins 0 and 1 (default) + pins_28_29 Use pins 28 and 29 + pins_44_45 Use pins 44 and 45 + pins_46_47 Use pins 46 and 47 +@@ -1166,18 +1164,33 @@ Params: sda0_pin GPIO pin + "yes") + + +-Name: i2c1-bcm2708 ++Name: i2c0-bcm2708 ++Info: Deprecated, legacy version of i2c0, from which it inherits its ++ parameters, just adding the explicit individual pin specifiers. ++Load: <Deprecated> ++Params: sda0_pin GPIO pin for SDA0 (deprecated - use pins_*) ++ scl0_pin GPIO pin for SCL0 (deprecated - use pins_*) ++ ++ ++Name: i2c1 + Info: Change i2c1 pin usage. Not all pin combinations are usable on all + platforms - platforms other then Compute Modules can only use this + to disable transaction combining. +-Info: Enable the i2c_bcm2708 driver for the i2c1 bus +-Load: dtoverlay=i2c1-bcm2708,<param>=<val> ++Load: dtoverlay=i2c1,<param>=<val> ++Params: pins_2_3 Use pins 2 and 3 (default) ++ pins_44_45 Use pins 44 and 45 ++ combine Allow transactions to be combined (default ++ "yes") ++ ++ ++Name: i2c1-bcm2708 ++Info: Deprecated, legacy version of i2c1, from which it inherits its ++ parameters, just adding the explicit individual pin specifiers. ++Load: <Deprecated> + Params: sda1_pin GPIO pin for SDA1 (2 or 44 - default 2) + scl1_pin GPIO pin for SCL1 (3 or 45 - default 3) + pin_func Alternative pin function (4 (alt0), 6 (alt2) - + default 4) +- combine Allow transactions to be combined (default +- "yes") + + + Name: i2c3 +--- a/arch/arm/boot/dts/overlays/i2c0-bcm2708-overlay.dts ++++ b/arch/arm/boot/dts/overlays/i2c0-bcm2708-overlay.dts +@@ -1,69 +1,14 @@ +-/* +- * Device tree overlay for i2c_bcm2708, i2c0 bus +- * +- * Compile: +- * dtc -@ -I dts -O dtb -o i2c0-bcm2708-overlay.dtb i2c0-bcm2708-overlay.dts +- */ +- +-/dts-v1/; +-/plugin/; ++#include "i2c0-overlay.dts" + + /{ +- compatible = "brcm,bcm2835"; +- +- fragment@0 { +- target = <&i2c0>; +- __overlay__ { +- status = "okay"; +- }; +- }; +- +- fragment@1 { +- target = <&i2c0_pins>; +- frag1: __overlay__ { +- brcm,pins = <0 1>; +- brcm,function = <4>; /* alt0 */ +- }; +- }; +- +- fragment@2 { +- target = <&i2c0_pins>; +- __dormant__ { +- brcm,pins = <28 29>; +- brcm,function = <4>; /* alt0 */ +- }; +- }; +- +- fragment@3 { +- target = <&i2c0_pins>; +- __dormant__ { +- brcm,pins = <44 45>; +- brcm,function = <5>; /* alt1 */ +- }; +- }; +- +- fragment@4 { +- target = <&i2c0_pins>; +- __dormant__ { +- brcm,pins = <46 47>; +- brcm,function = <4>; /* alt0 */ +- }; +- }; +- +- fragment@5 { +- target = <&i2c0>; +- __dormant__ { +- compatible = "brcm,bcm2708-i2c"; +- }; +- }; +- +- __overrides__ { +- sda0_pin = <&frag1>,"brcm,pins:0"; +- scl0_pin = <&frag1>,"brcm,pins:4"; +- pins_0_1 = <0>,"+1-2-3-4"; +- pins_28_29 = <0>,"-1+2-3-4"; +- pins_44_45 = <0>,"-1-2+3-4"; +- pins_46_47 = <0>,"-1-2-3+4"; +- combine = <0>, "!5"; +- }; ++ __overrides__ { ++ sda0_pin = <&pins1>,"brcm,pins:0", ++ <&pins2>,"brcm,pins:0", ++ <&pins3>,"brcm,pins:0", ++ <&pins4>,"brcm,pins:0"; ++ scl0_pin = <&pins1>,"brcm,pins:4", ++ <&pins2>,"brcm,pins:4", ++ <&pins3>,"brcm,pins:4", ++ <&pins4>,"brcm,pins:4"; ++ }; + }; +--- /dev/null ++++ b/arch/arm/boot/dts/overlays/i2c0-overlay.dts +@@ -0,0 +1,61 @@ ++/dts-v1/; ++/plugin/; ++ ++/{ ++ compatible = "brcm,bcm2835"; ++ ++ fragment@0 { ++ target = <&i2c0>; ++ __overlay__ { ++ status = "okay"; ++ pinctrl-0 = <&i2c0_pins>; ++ }; ++ }; ++ ++ fragment@1 { ++ target = <&i2c0_pins>; ++ pins1: __overlay__ { ++ brcm,pins = <0 1>; ++ brcm,function = <4>; /* alt0 */ ++ }; ++ }; ++ ++ fragment@2 { ++ target = <&i2c0_pins>; ++ pins2: __dormant__ { ++ brcm,pins = <28 29>; ++ brcm,function = <4>; /* alt0 */ ++ }; ++ }; ++ ++ fragment@3 { ++ target = <&i2c0_pins>; ++ pins3: __dormant__ { ++ brcm,pins = <44 45>; ++ brcm,function = <5>; /* alt1 */ ++ }; ++ }; ++ ++ fragment@4 { ++ target = <&i2c0_pins>; ++ pins4: __dormant__ { ++ brcm,pins = <46 47>; ++ brcm,function = <4>; /* alt0 */ ++ }; ++ }; ++ ++ fragment@5 { ++ target = <&i2c0>; ++ __dormant__ { ++ compatible = "brcm,bcm2708-i2c"; ++ }; ++ }; ++ ++ __overrides__ { ++ pins_0_1 = <0>,"+1-2-3-4"; ++ pins_28_29 = <0>,"-1+2-3-4"; ++ pins_44_45 = <0>,"-1-2+3-4"; ++ pins_46_47 = <0>,"-1-2-3+4"; ++ combine = <0>, "!5"; ++ }; ++}; +--- a/arch/arm/boot/dts/overlays/i2c1-bcm2708-overlay.dts ++++ b/arch/arm/boot/dts/overlays/i2c1-bcm2708-overlay.dts +@@ -1,43 +1,9 @@ +-/* +- * Device tree overlay for i2c_bcm2708, i2c1 bus +- * +- * Compile: +- * dtc -@ -I dts -O dtb -o i2c1-bcm2708-overlay.dtb i2c1-bcm2708-overlay.dts +- */ +- +-/dts-v1/; +-/plugin/; ++#include "i2c1-overlay.dts" + + /{ +- compatible = "brcm,bcm2835"; +- +- fragment@0 { +- target = <&i2c1>; +- __overlay__ { +- pinctrl-0 = <&i2c1_pins>; +- status = "okay"; +- }; +- }; +- +- fragment@1 { +- target = <&i2c1_pins>; +- pins: __overlay__ { +- brcm,pins = <2 3>; +- brcm,function = <4>; /* alt 0 */ +- }; +- }; +- +- fragment@2 { +- target = <&i2c1>; +- __dormant__ { +- compatible = "brcm,bcm2708-i2c"; +- }; +- }; +- +- __overrides__ { +- sda1_pin = <&pins>,"brcm,pins:0"; +- scl1_pin = <&pins>,"brcm,pins:4"; +- pin_func = <&pins>,"brcm,function:0"; +- combine = <0>, "!2"; +- }; ++ __overrides__ { ++ sda1_pin = <&pins1>,"brcm,pins:0", <&pins2>,"brcm,pins:0"; ++ scl1_pin = <&pins1>,"brcm,pins:4", <&pins1>,"brcm,pins:4"; ++ pin_func = <&pins1>,"brcm,function:0", <&pins2>,"brcm,function:0"; ++ }; + }; +--- /dev/null ++++ b/arch/arm/boot/dts/overlays/i2c1-overlay.dts +@@ -0,0 +1,44 @@ ++/dts-v1/; ++/plugin/; ++ ++/{ ++ compatible = "brcm,bcm2835"; ++ ++ fragment@0 { ++ target = <&i2c1>; ++ __overlay__ { ++ status = "okay"; ++ pinctrl-names = "default"; ++ pinctrl-0 = <&i2c1_pins>; ++ }; ++ }; ++ ++ fragment@1 { ++ target = <&i2c1_pins>; ++ pins1: __overlay__ { ++ brcm,pins = <2 3>; ++ brcm,function = <4>; /* alt 0 */ ++ }; ++ }; ++ ++ fragment@2 { ++ target = <&i2c1_pins>; ++ pins2: __dormant__ { ++ brcm,pins = <44 45>; ++ brcm,function = <6>; /* alt 2 */ ++ }; ++ }; ++ ++ fragment@3 { ++ target = <&i2c1>; ++ __dormant__ { ++ compatible = "brcm,bcm2708-i2c"; ++ }; ++ }; ++ ++ __overrides__ { ++ pins_2_3 = <0>,"=1!2"; ++ pins_44_45 = <0>,"!1=2"; ++ combine = <0>, "!3"; ++ }; ++}; |