aboutsummaryrefslogtreecommitdiffstats
path: root/target/linux/brcm2708/patches-4.4/0154-clk-bcm2835-Add-bindings-for-the-auxiliary-periphera.patch
diff options
context:
space:
mode:
Diffstat (limited to 'target/linux/brcm2708/patches-4.4/0154-clk-bcm2835-Add-bindings-for-the-auxiliary-periphera.patch')
-rw-r--r--target/linux/brcm2708/patches-4.4/0154-clk-bcm2835-Add-bindings-for-the-auxiliary-periphera.patch72
1 files changed, 72 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.4/0154-clk-bcm2835-Add-bindings-for-the-auxiliary-periphera.patch b/target/linux/brcm2708/patches-4.4/0154-clk-bcm2835-Add-bindings-for-the-auxiliary-periphera.patch
new file mode 100644
index 0000000000..f09e8643a1
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.4/0154-clk-bcm2835-Add-bindings-for-the-auxiliary-periphera.patch
@@ -0,0 +1,72 @@
+From c866120163103778042130f37cc436e1512030ce Mon Sep 17 00:00:00 2001
+From: Eric Anholt <eric@anholt.net>
+Date: Tue, 15 Dec 2015 15:35:57 -0800
+Subject: [PATCH 154/304] clk: bcm2835: Add bindings for the auxiliary
+ peripheral clock gates.
+
+These will be used for enabling UART1, SPI1, and SPI2.
+
+Signed-off-by: Eric Anholt <eric@anholt.net>
+Acked-by: Rob Herring <robh@kernel.org>
+Signed-off-by: Michael Turquette <mturquette@baylibre.com>
+---
+ .../bindings/clock/brcm,bcm2835-aux-clock.txt | 31 ++++++++++++++++++++++
+ include/dt-bindings/clock/bcm2835-aux.h | 17 ++++++++++++
+ 2 files changed, 48 insertions(+)
+ create mode 100644 Documentation/devicetree/bindings/clock/brcm,bcm2835-aux-clock.txt
+ create mode 100644 include/dt-bindings/clock/bcm2835-aux.h
+
+--- /dev/null
++++ b/Documentation/devicetree/bindings/clock/brcm,bcm2835-aux-clock.txt
+@@ -0,0 +1,31 @@
++Broadcom BCM2835 auxiliary peripheral support
++
++This binding uses the common clock binding:
++ Documentation/devicetree/bindings/clock/clock-bindings.txt
++
++The auxiliary peripherals (UART, SPI1, and SPI2) have a small register
++area controlling clock gating to the peripherals, and providing an IRQ
++status register.
++
++Required properties:
++- compatible: Should be "brcm,bcm2835-aux"
++- #clock-cells: Should be <1>. The permitted clock-specifier values can be
++ found in include/dt-bindings/clock/bcm2835-aux.h
++- reg: Specifies base physical address and size of the registers
++- clocks: The parent clock phandle
++
++Example:
++
++ clocks: cprman@7e101000 {
++ compatible = "brcm,bcm2835-cprman";
++ #clock-cells = <1>;
++ reg = <0x7e101000 0x2000>;
++ clocks = <&clk_osc>;
++ };
++
++ aux: aux@0x7e215004 {
++ compatible = "brcm,bcm2835-aux";
++ #clock-cells = <1>;
++ reg = <0x7e215000 0x8>;
++ clocks = <&clocks BCM2835_CLOCK_VPU>;
++ };
+--- /dev/null
++++ b/include/dt-bindings/clock/bcm2835-aux.h
+@@ -0,0 +1,17 @@
++/*
++ * Copyright (C) 2015 Broadcom Corporation
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License as
++ * published by the Free Software Foundation version 2.
++ *
++ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
++ * kind, whether express or implied; without even the implied warranty
++ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++ * GNU General Public License for more details.
++ */
++
++#define BCM2835_AUX_CLOCK_UART 0
++#define BCM2835_AUX_CLOCK_SPI1 1
++#define BCM2835_AUX_CLOCK_SPI2 2
++#define BCM2835_AUX_CLOCK_COUNT 3