You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
73 lines
2.5 KiB
Diff
73 lines
2.5 KiB
Diff
From 85e7001af712694f81195fe9389deb14aa562da3 Mon Sep 17 00:00:00 2001
|
|
From: Eric Anholt <eric@anholt.net>
|
|
Date: Tue, 15 Dec 2015 15:35:57 -0800
|
|
Subject: [PATCH] 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
|