| # |
| # (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 |
| # Foundation, and any use by you of this program is subject to the terms |
| # of such GNU licence. |
| # |
| # A copy of the licence is included with the program, and can also be obtained |
| # from Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| # Boston, MA 02110-1301, USA. |
| # |
| # |
| |
| |
| * ARM Mali Midgard devices |
| |
| |
| 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 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: |
| |
| - 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"; |
| }; |
| }; |