diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.4/0155-clk-bcm2835-Add-bindings-for-the-auxiliary-periphera.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.4/0155-clk-bcm2835-Add-bindings-for-the-auxiliary-periphera.patch | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.4/0155-clk-bcm2835-Add-bindings-for-the-auxiliary-periphera.patch b/target/linux/brcm2708/patches-4.4/0155-clk-bcm2835-Add-bindings-for-the-auxiliary-periphera.patch new file mode 100644 index 0000000000..24c0ccabe6 --- /dev/null +++ b/target/linux/brcm2708/patches-4.4/0155-clk-bcm2835-Add-bindings-for-the-auxiliary-periphera.patch @@ -0,0 +1,72 @@ +From 0316ebbf545738333e188197d196b618c17b171e Mon Sep 17 00:00:00 2001 +From: Eric Anholt <eric@anholt.net> +Date: Tue, 15 Dec 2015 15:35:57 -0800 +Subject: [PATCH 155/232] 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 |