From 4c1a95df70f7c057ab7fbacf38177b3117bea4ac Mon Sep 17 00:00:00 2001
From: chenzhen <chenzhen@rock-chips.com>
Date: Tue, 19 Apr 2016 18:31:45 +0800
Subject: [PATCH] MALI: rockchip: update mali-midgard binding doc
Change-Id: Iffb05ab0032bf0be33652803d4931018e06e0631
Signed-off-by: chenzhen <chenzhen@rock-chips.com>
---
.../devicetree/bindings/arm/mali-midgard.txt | 81 +++++++++++++++----
1 file changed, 65 insertions(+), 16 deletions(-)
diff --git a/Documentation/devicetree/bindings/arm/mali-midgard.txt b/Documentation/devicetree/bindings/arm/mali-midgard.txt
index 9118a947a508..46b704b13826 100755
--- a/Documentation/devicetree/bindings/arm/mali-midgard.txt
+++ b/Documentation/devicetree/bindings/arm/mali-midgard.txt
@@ -1,5 +1,5 @@
#
-# (C) COPYRIGHT 2013 ARM Limited. All rights reserved.
+# (C) COPYRIGHT 2013-2015 ARM Limited. All rights reserved.
#
# This program is free software and is provided to you under the terms of the
# GNU General Public License version 2 as published by the Free Software
@@ -21,23 +21,72 @@ Required properties:
- compatible : Should be mali<chip>, replacing digits with x from the back,
until malit<Major>xx, ending with arm,mali-midgard, the latter not optional.
- reg : Physical base address of the device and length of the register area.
-- interrupts : Contains the three IRQ lines required by T76x devices
+- interrupts : Contains the three IRQ lines required by T-6xx devices
- interrupt-names : Contains the names of IRQ resources in the order they were
provided in the interrupts property. Must contain: "JOB, "MMU", "GPU".
+Optional:
-Example for a Mali-T76x:
-
-gpu{
- compatible = "arm,malit764",
- "arm,malit76x",
- "arm,malit7xx",
- "arm,mali-midgard";
- reg = <0xffa30000 0x10000>;
- interrupts = <GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>;
- interrupt-names = "JOB",
- "MMU",
- "GPU";
+- clocks : Phandle to clock for the Mali T-6xx device.
+- clock-names : Shall be "clk_mali".
+- mali-supply : Phandle to regulator for the Mali device. Refer to
+Documentation/devicetree/bindings/regulator/regulator.txt for details.
+- operating-points : Refer to Documentation/devicetree/bindings/power/opp.txt
+for details.
+- snoop_enable_smc : SMC function ID to enable CCI snooping on the GPU port(s).
+- snoop_disable_smc : SMC function ID to disable CCI snooping on the GPU port(s).
+- jm_config : For T860/T880. Sets job manager configuration. An array containing:
+ - 1 to override the TIMESTAMP value, 0 otherwise.
+ - 1 to override clock gate, forcing them to be always on, 0 otherwise.
+ - 1 to enable job throttle, limiting the number of cores that can be started
+ simultaneously, 0 otherwise.
+ - Value between 0 and 63 (including). If job throttle is enabled, this is one
+ less than the number of cores that can be started simultaneously.
+- power_model : Sets power model parameters. Note that this model was designed for the Juno
+ platform, and may not be suitable for other platforms. A structure containing :
+ - compatible: Should be arm,mali-simple-power-model
+ - voltage: Voltage at reference point. Specified in mV.
+ - frequency: Frequency at reference point. Specified in MHz.
+ - dynamic-power: Dynamic power at reference frequency and voltage. Specified in mW.
+ - static-power: Static power at reference frequency. Specified in mW.
+ - ts: An array containing coefficients for the temperature scaling factor.
+ Used as : tsf = ts[3]*T^3 + ts[2]*T^2 + ts[1]*T + ts[0], where T = temperature
+ - thermal-zone: A string identifying the thermal zone used for the GPU
+- system-coherency : Sets the coherency protocol to be used for coherent
+ accesses made from the GPU.
+ If not set then no coherency is used.
+ - 0 : ACE-Lite
+ - 1 : ACE
+ - 31 : No coherency
+
+Example for a Mali-T602:
+
+gpu@0xfc010000 {
+ compatible = "arm,malit602", "arm,malit60x", "arm,malit6xx", "arm,mali-midgard";
+ reg = <0xfc010000 0x4000>;
+ interrupts = <0 36 4>, <0 37 4>, <0 38 4>;
+ interrupt-names = "JOB", "MMU", "GPU";
+
+ clocks = <&pclk_mali>;
+ clock-names = "clk_mali";
+ mali-supply = <&vdd_mali>;
+ operating-points = <
+ /* KHz uV */
+ 533000 1250000,
+ 450000 1150000,
+ 400000 1125000,
+ 350000 1075000,
+ 266000 1025000,
+ 160000 925000,
+ 100000 912500,
+ >;
+ power_model {
+ compatible = "arm,mali-simple-power-model";
+ voltage = <800>;
+ frequency = <500>;
+ static-power = <500>;
+ dynamic-power = <1500>;
+ ts = <20000 2000 (-20) 2>;
+ thermal-zone = "gpu";
+ };
};
--
2.34.1