mirror of
https://github.com/torvalds/linux.git
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Merge tag 'devicetree-for-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull devicetree updates from Rob Herring:
"DT core:
- Cleanup of the reserved memory code to keep CMA specifics in CMA
code
- Add and convert several users to new of_machine_get_match() helper
- Validate nul termination in string properties
- Update dtc to upstream v1.7.2-69-g53373d135579
- Limit matching reserved memory devices to /reserved-memory nodes
- Fix some UAF in unittests
- Remove Baikal SoC bus driver
- Fix false DT_SPLIT_BINDING_PATCH checkpatch warning
- Allow fw_devlink device-tree on x86
- Fix kerneldoc return description for of_property_count_elems_of_size()
DT bindings:
- Add fsl,imx25-aips, fsl,imx25-tcq, qcom,eliza-pdc,
qcom,eliza-spmi-pmic-arb, qcom,hawi-imem, qcom,milos-imem,
qcom,hawi-pdc, and lg,sw49410 bindings
- Convert arm,vexpress-scc to DT schema
- Deprecate Qualcomm generic CPU compatibles. Add Apple M3 CPU cores.
- Move some dual-link display panels to the dual-link schema
- Drop mux controller node name constraints
- Remove Baikal SoC bus bindings
- Fix a false warning in the thermal trip node binding"
* tag 'devicetree-for-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (39 commits)
dt-bindings: display: panel: panel-simple: Add lg,sw49410 compatible
dt-bindings: display: ti, am65x-dss: Fix AM62L DSS reg and clock constraints
dt-bindings: display: simple: Move Innolux G156HCE-L01 panel to dual-link
dt-bindings: display: simple: Move AUO 21.5" FHD to dual-link
dt-bindings: thermal: Fix false warning with 'phandle' in trips nodes
of: unittest: fix use-after-free in testdrv_probe()
of: unittest: fix use-after-free in of_unittest_changeset()
dt-bindings: qcom,pdc: document the Hawi Power Domain Controller
dt-bindings: ARM: arm,vexpress-scc: convert to DT schema
drivers/of: fdt: validate flat DT string properties before string use
drivers/of: fdt: validate stdout-path properties before parsing them
dt-bindings: sram: Document qcom,hawi-imem compatible
dt-bindings: sram: Allow multiple-word prefixes to sram subnode
dt-bindings: sram: Document qcom,milos-imem
scripts/dtc: Update to upstream version v1.7.2-69-g53373d135579
of: property: Allow fw_devlink device-tree on x86
dt-bindings: arm: cpus: Add Apple M3 CPU core compatibles
dt-bindings: display: lt8912b: Drop redundant endpoint properties
dt-bindings: opp-v2: Fix example 3 CPU reg value
dt-bindings: connector: add pd-disable dependency
...
This commit is contained in:
Linus Torvalds
53
Documentation/devicetree/bindings/arm/arm,vexpress-scc.yaml
Normal file
53
Documentation/devicetree/bindings/arm/arm,vexpress-scc.yaml
Normal file
@@ -0,0 +1,53 @@
|
||||
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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||||
%YAML 1.2
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||||
---
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||||
$id: http://devicetree.org/schemas/arm/arm,vexpress-scc.yaml#
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||||
$schema: http://devicetree.org/meta-schemas/core.yaml#
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||||
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||||
title: ARM Versatile Express Serial Configuration Controller
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||||
|
||||
maintainers:
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||||
- Liviu Dudau <liviu.dudau@arm.com>
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||||
- Sudeep Holla <sudeep.holla@arm.com>
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||||
|
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description: |
|
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Test chips for ARM Versatile Express platform implement SCC (Serial
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||||
Configuration Controller) interface, used to set initial conditions
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||||
for the test chip.
|
||||
|
||||
In some cases its registers are also mapped in normal address space
|
||||
and can be used to obtain runtime information about the chip internals
|
||||
(like silicon temperature sensors) and as interface to other subsystems
|
||||
like platform configuration control and power management.
|
||||
|
||||
properties:
|
||||
compatible:
|
||||
items:
|
||||
- enum:
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||||
- arm,vexpress-scc,v2p-ca15_a7
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||||
- const: arm,vexpress-scc
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||||
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||||
reg:
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||||
maxItems: 1
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||||
|
||||
interrupts:
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||||
maxItems: 1
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||||
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||||
required:
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||||
- compatible
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||||
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||||
additionalProperties: false
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||||
|
||||
examples:
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- |
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bus {
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#address-cells = <2>;
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#size-cells = <2>;
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scc@7fff0000 {
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compatible = "arm,vexpress-scc,v2p-ca15_a7", "arm,vexpress-scc";
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reg = <0 0x7fff0000 0 0x1000>;
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interrupts = <0 95 4>;
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};
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};
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...
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@@ -79,156 +79,162 @@ properties:
|
||||
All other bits in the reg cells must be set to 0.
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|
||||
compatible:
|
||||
enum:
|
||||
- apm,potenza
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||||
- apm,strega
|
||||
- apple,avalanche
|
||||
- apple,blizzard
|
||||
- apple,cyclone
|
||||
- apple,firestorm
|
||||
- apple,hurricane-zephyr
|
||||
- apple,icestorm
|
||||
- apple,mistral
|
||||
- apple,monsoon
|
||||
- apple,twister
|
||||
- apple,typhoon
|
||||
- arm,arm710t
|
||||
- arm,arm720t
|
||||
- arm,arm740t
|
||||
- arm,arm7ej-s
|
||||
- arm,arm7tdmi
|
||||
- arm,arm7tdmi-s
|
||||
- arm,arm9es
|
||||
- arm,arm9ej-s
|
||||
- arm,arm920t
|
||||
- arm,arm922t
|
||||
- arm,arm925
|
||||
- arm,arm926e-s
|
||||
- arm,arm926ej-s
|
||||
- arm,arm940t
|
||||
- arm,arm946e-s
|
||||
- arm,arm966e-s
|
||||
- arm,arm968e-s
|
||||
- arm,arm9tdmi
|
||||
- arm,arm1020e
|
||||
- arm,arm1020t
|
||||
- arm,arm1022e
|
||||
- arm,arm1026ej-s
|
||||
- arm,arm1136j-s
|
||||
- arm,arm1136jf-s
|
||||
- arm,arm1156t2-s
|
||||
- arm,arm1156t2f-s
|
||||
- arm,arm1176jzf
|
||||
- arm,arm1176jz-s
|
||||
- arm,arm1176jzf-s
|
||||
- arm,arm11mpcore
|
||||
- arm,armv8 # Only for s/w models
|
||||
- arm,c1-nano
|
||||
- arm,c1-premium
|
||||
- arm,c1-pro
|
||||
- arm,c1-ultra
|
||||
- arm,cortex-a5
|
||||
- arm,cortex-a7
|
||||
- arm,cortex-a8
|
||||
- arm,cortex-a9
|
||||
- arm,cortex-a12
|
||||
- arm,cortex-a15
|
||||
- arm,cortex-a17
|
||||
- arm,cortex-a32
|
||||
- arm,cortex-a34
|
||||
- arm,cortex-a35
|
||||
- arm,cortex-a53
|
||||
- arm,cortex-a55
|
||||
- arm,cortex-a57
|
||||
- arm,cortex-a65
|
||||
- arm,cortex-a72
|
||||
- arm,cortex-a73
|
||||
- arm,cortex-a75
|
||||
- arm,cortex-a76
|
||||
- arm,cortex-a77
|
||||
- arm,cortex-a78
|
||||
- arm,cortex-a78ae
|
||||
- arm,cortex-a78c
|
||||
- arm,cortex-a320
|
||||
- arm,cortex-a510
|
||||
- arm,cortex-a520
|
||||
- arm,cortex-a520ae
|
||||
- arm,cortex-a710
|
||||
- arm,cortex-a715
|
||||
- arm,cortex-a720
|
||||
- arm,cortex-a720ae
|
||||
- arm,cortex-a725
|
||||
- arm,cortex-m0
|
||||
- arm,cortex-m0+
|
||||
- arm,cortex-m1
|
||||
- arm,cortex-m3
|
||||
- arm,cortex-m4
|
||||
- arm,cortex-r4
|
||||
- arm,cortex-r5
|
||||
- arm,cortex-r7
|
||||
- arm,cortex-r52
|
||||
- arm,cortex-x1
|
||||
- arm,cortex-x1c
|
||||
- arm,cortex-x2
|
||||
- arm,cortex-x3
|
||||
- arm,cortex-x4
|
||||
- arm,cortex-x925
|
||||
- arm,neoverse-e1
|
||||
- arm,neoverse-n1
|
||||
- arm,neoverse-n2
|
||||
- arm,neoverse-n3
|
||||
- arm,neoverse-v1
|
||||
- arm,neoverse-v2
|
||||
- arm,neoverse-v3
|
||||
- arm,neoverse-v3ae
|
||||
- arm,rainier
|
||||
- brcm,brahma-b15
|
||||
- brcm,brahma-b53
|
||||
- brcm,vulcan
|
||||
- cavium,thunder
|
||||
- cavium,thunder2
|
||||
- faraday,fa526
|
||||
- intel,sa110
|
||||
- intel,sa1100
|
||||
- marvell,feroceon
|
||||
- marvell,mohawk
|
||||
- marvell,pj4a
|
||||
- marvell,pj4b
|
||||
- marvell,sheeva-v5
|
||||
- marvell,sheeva-v7
|
||||
- nvidia,tegra132-denver
|
||||
- nvidia,tegra186-denver
|
||||
- nvidia,tegra194-carmel
|
||||
- qcom,krait
|
||||
- qcom,kryo
|
||||
- qcom,kryo240
|
||||
- qcom,kryo250
|
||||
- qcom,kryo260
|
||||
- qcom,kryo280
|
||||
- qcom,kryo360
|
||||
- qcom,kryo385
|
||||
- qcom,kryo465
|
||||
- qcom,kryo468
|
||||
- qcom,kryo470
|
||||
- qcom,kryo485
|
||||
- qcom,kryo560
|
||||
- qcom,kryo570
|
||||
- qcom,kryo660
|
||||
- qcom,kryo670
|
||||
- qcom,kryo685
|
||||
- qcom,kryo780
|
||||
- qcom,oryon
|
||||
- qcom,oryon-1-1
|
||||
- qcom,oryon-1-2
|
||||
- qcom,oryon-1-3
|
||||
- qcom,oryon-1-4
|
||||
- qcom,oryon-2-1
|
||||
- qcom,oryon-2-2
|
||||
- qcom,oryon-2-3
|
||||
- qcom,scorpion
|
||||
- samsung,mongoose-m2
|
||||
- samsung,mongoose-m3
|
||||
- samsung,mongoose-m5
|
||||
oneOf:
|
||||
- enum:
|
||||
- apm,potenza
|
||||
- apm,strega
|
||||
- apple,avalanche
|
||||
- apple,blizzard
|
||||
- apple,cyclone
|
||||
- apple,everest
|
||||
- apple,firestorm
|
||||
- apple,hurricane-zephyr
|
||||
- apple,icestorm
|
||||
- apple,mistral
|
||||
- apple,monsoon
|
||||
- apple,sawtooth
|
||||
- apple,twister
|
||||
- apple,typhoon
|
||||
- arm,arm710t
|
||||
- arm,arm720t
|
||||
- arm,arm740t
|
||||
- arm,arm7ej-s
|
||||
- arm,arm7tdmi
|
||||
- arm,arm7tdmi-s
|
||||
- arm,arm9es
|
||||
- arm,arm9ej-s
|
||||
- arm,arm920t
|
||||
- arm,arm922t
|
||||
- arm,arm925
|
||||
- arm,arm926e-s
|
||||
- arm,arm926ej-s
|
||||
- arm,arm940t
|
||||
- arm,arm946e-s
|
||||
- arm,arm966e-s
|
||||
- arm,arm968e-s
|
||||
- arm,arm9tdmi
|
||||
- arm,arm1020e
|
||||
- arm,arm1020t
|
||||
- arm,arm1022e
|
||||
- arm,arm1026ej-s
|
||||
- arm,arm1136j-s
|
||||
- arm,arm1136jf-s
|
||||
- arm,arm1156t2-s
|
||||
- arm,arm1156t2f-s
|
||||
- arm,arm1176jzf
|
||||
- arm,arm1176jz-s
|
||||
- arm,arm1176jzf-s
|
||||
- arm,arm11mpcore
|
||||
- arm,armv8 # Only for s/w models
|
||||
- arm,c1-nano
|
||||
- arm,c1-premium
|
||||
- arm,c1-pro
|
||||
- arm,c1-ultra
|
||||
- arm,cortex-a5
|
||||
- arm,cortex-a7
|
||||
- arm,cortex-a8
|
||||
- arm,cortex-a9
|
||||
- arm,cortex-a12
|
||||
- arm,cortex-a15
|
||||
- arm,cortex-a17
|
||||
- arm,cortex-a32
|
||||
- arm,cortex-a34
|
||||
- arm,cortex-a35
|
||||
- arm,cortex-a53
|
||||
- arm,cortex-a55
|
||||
- arm,cortex-a57
|
||||
- arm,cortex-a65
|
||||
- arm,cortex-a72
|
||||
- arm,cortex-a73
|
||||
- arm,cortex-a75
|
||||
- arm,cortex-a76
|
||||
- arm,cortex-a77
|
||||
- arm,cortex-a78
|
||||
- arm,cortex-a78ae
|
||||
- arm,cortex-a78c
|
||||
- arm,cortex-a320
|
||||
- arm,cortex-a510
|
||||
- arm,cortex-a520
|
||||
- arm,cortex-a520ae
|
||||
- arm,cortex-a710
|
||||
- arm,cortex-a715
|
||||
- arm,cortex-a720
|
||||
- arm,cortex-a720ae
|
||||
- arm,cortex-a725
|
||||
- arm,cortex-m0
|
||||
- arm,cortex-m0+
|
||||
- arm,cortex-m1
|
||||
- arm,cortex-m3
|
||||
- arm,cortex-m4
|
||||
- arm,cortex-r4
|
||||
- arm,cortex-r5
|
||||
- arm,cortex-r7
|
||||
- arm,cortex-r52
|
||||
- arm,cortex-x1
|
||||
- arm,cortex-x1c
|
||||
- arm,cortex-x2
|
||||
- arm,cortex-x3
|
||||
- arm,cortex-x4
|
||||
- arm,cortex-x925
|
||||
- arm,neoverse-e1
|
||||
- arm,neoverse-n1
|
||||
- arm,neoverse-n2
|
||||
- arm,neoverse-n3
|
||||
- arm,neoverse-v1
|
||||
- arm,neoverse-v2
|
||||
- arm,neoverse-v3
|
||||
- arm,neoverse-v3ae
|
||||
- arm,rainier
|
||||
- brcm,brahma-b15
|
||||
- brcm,brahma-b53
|
||||
- brcm,vulcan
|
||||
- cavium,thunder
|
||||
- cavium,thunder2
|
||||
- faraday,fa526
|
||||
- intel,sa110
|
||||
- intel,sa1100
|
||||
- marvell,feroceon
|
||||
- marvell,mohawk
|
||||
- marvell,pj4a
|
||||
- marvell,pj4b
|
||||
- marvell,sheeva-v5
|
||||
- marvell,sheeva-v7
|
||||
- nvidia,tegra132-denver
|
||||
- nvidia,tegra186-denver
|
||||
- nvidia,tegra194-carmel
|
||||
- qcom,krait
|
||||
- qcom,kryo240
|
||||
- qcom,kryo250
|
||||
- qcom,kryo260
|
||||
- qcom,kryo280
|
||||
- qcom,kryo360
|
||||
- qcom,kryo385
|
||||
- qcom,kryo465
|
||||
- qcom,kryo468
|
||||
- qcom,kryo470
|
||||
- qcom,kryo485
|
||||
- qcom,kryo560
|
||||
- qcom,kryo570
|
||||
- qcom,kryo660
|
||||
- qcom,kryo670
|
||||
- qcom,kryo685
|
||||
- qcom,kryo780
|
||||
- qcom,oryon-1-1
|
||||
- qcom,oryon-1-2
|
||||
- qcom,oryon-1-3
|
||||
- qcom,oryon-1-4
|
||||
- qcom,oryon-2-1
|
||||
- qcom,oryon-2-2
|
||||
- qcom,oryon-2-3
|
||||
- qcom,scorpion
|
||||
- samsung,mongoose-m2
|
||||
- samsung,mongoose-m3
|
||||
- samsung,mongoose-m5
|
||||
- enum:
|
||||
- qcom,kryo
|
||||
- qcom,oryon
|
||||
# Too generic, do not use in new code
|
||||
deprecated: true
|
||||
|
||||
enable-method:
|
||||
$ref: /schemas/types.yaml#/definitions/string
|
||||
|
||||
@@ -15,6 +15,7 @@ properties:
|
||||
compatible:
|
||||
oneOf:
|
||||
- enum:
|
||||
- fsl,imx25-aips
|
||||
- fsl,imx51-m4if
|
||||
- fsl,imx51-tigerp
|
||||
- fsl,imx51-aipstz
|
||||
|
||||
@@ -1,33 +0,0 @@
|
||||
ARM Versatile Express Serial Configuration Controller
|
||||
-----------------------------------------------------
|
||||
|
||||
Test chips for ARM Versatile Express platform implement SCC (Serial
|
||||
Configuration Controller) interface, used to set initial conditions
|
||||
for the test chip.
|
||||
|
||||
In some cases its registers are also mapped in normal address space
|
||||
and can be used to obtain runtime information about the chip internals
|
||||
(like silicon temperature sensors) and as interface to other subsystems
|
||||
like platform configuration control and power management.
|
||||
|
||||
Required properties:
|
||||
|
||||
- compatible value: "arm,vexpress-scc,<model>", "arm,vexpress-scc";
|
||||
where <model> is the full tile model name (as used
|
||||
in the tile's Technical Reference Manual),
|
||||
eg. for Coretile Express A15x2 A7x3 (V2P-CA15_A7):
|
||||
compatible = "arm,vexpress-scc,v2p-ca15_a7", "arm,vexpress-scc";
|
||||
|
||||
Optional properties:
|
||||
|
||||
- reg: when the SCC is memory mapped, physical address and size of the
|
||||
registers window
|
||||
- interrupts: when the SCC can generate a system-level interrupt
|
||||
|
||||
Example:
|
||||
|
||||
scc@7fff0000 {
|
||||
compatible = "arm,vexpress-scc,v2p-ca15_a7", "arm,vexpress-scc";
|
||||
reg = <0 0x7fff0000 0 0x1000>;
|
||||
interrupts = <0 95 4>;
|
||||
};
|
||||
@@ -1,90 +0,0 @@
|
||||
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
|
||||
# Copyright (C) 2020 BAIKAL ELECTRONICS, JSC
|
||||
%YAML 1.2
|
||||
---
|
||||
$id: http://devicetree.org/schemas/bus/baikal,bt1-apb.yaml#
|
||||
$schema: http://devicetree.org/meta-schemas/core.yaml#
|
||||
|
||||
title: Baikal-T1 APB-bus
|
||||
|
||||
maintainers:
|
||||
- Serge Semin <fancer.lancer@gmail.com>
|
||||
|
||||
description: |
|
||||
Baikal-T1 CPU or DMAC MMIO requests are handled by the AMBA 3 AXI Interconnect
|
||||
which routes them to the AXI-APB bridge. This interface is a single master
|
||||
multiple slaves bus in turn serializing IO accesses and routing them to the
|
||||
addressed APB slave devices. In case of any APB protocol collisions, slave
|
||||
device not responding on timeout an IRQ is raised with an erroneous address
|
||||
reported to the APB terminator (APB Errors Handler Block).
|
||||
|
||||
allOf:
|
||||
- $ref: /schemas/simple-bus.yaml#
|
||||
|
||||
properties:
|
||||
compatible:
|
||||
contains:
|
||||
const: baikal,bt1-apb
|
||||
|
||||
reg:
|
||||
items:
|
||||
- description: APB EHB MMIO registers
|
||||
- description: APB MMIO region with no any device mapped
|
||||
|
||||
reg-names:
|
||||
items:
|
||||
- const: ehb
|
||||
- const: nodev
|
||||
|
||||
interrupts:
|
||||
maxItems: 1
|
||||
|
||||
clocks:
|
||||
items:
|
||||
- description: APB reference clock
|
||||
|
||||
clock-names:
|
||||
items:
|
||||
- const: pclk
|
||||
|
||||
resets:
|
||||
items:
|
||||
- description: APB domain reset line
|
||||
|
||||
reset-names:
|
||||
items:
|
||||
- const: prst
|
||||
|
||||
unevaluatedProperties: false
|
||||
|
||||
required:
|
||||
- compatible
|
||||
- reg
|
||||
- reg-names
|
||||
- interrupts
|
||||
- clocks
|
||||
- clock-names
|
||||
|
||||
examples:
|
||||
- |
|
||||
#include <dt-bindings/interrupt-controller/mips-gic.h>
|
||||
|
||||
bus@1f059000 {
|
||||
compatible = "baikal,bt1-apb", "simple-bus";
|
||||
reg = <0x1f059000 0x1000>,
|
||||
<0x1d000000 0x2040000>;
|
||||
reg-names = "ehb", "nodev";
|
||||
#address-cells = <1>;
|
||||
#size-cells = <1>;
|
||||
|
||||
ranges;
|
||||
|
||||
interrupts = <GIC_SHARED 16 IRQ_TYPE_LEVEL_HIGH>;
|
||||
|
||||
clocks = <&ccu_sys 1>;
|
||||
clock-names = "pclk";
|
||||
|
||||
resets = <&ccu_sys 1>;
|
||||
reset-names = "prst";
|
||||
};
|
||||
...
|
||||
@@ -1,107 +0,0 @@
|
||||
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
|
||||
# Copyright (C) 2020 BAIKAL ELECTRONICS, JSC
|
||||
%YAML 1.2
|
||||
---
|
||||
$id: http://devicetree.org/schemas/bus/baikal,bt1-axi.yaml#
|
||||
$schema: http://devicetree.org/meta-schemas/core.yaml#
|
||||
|
||||
title: Baikal-T1 AXI-bus
|
||||
|
||||
maintainers:
|
||||
- Serge Semin <fancer.lancer@gmail.com>
|
||||
|
||||
description: |
|
||||
AXI3-bus is the main communication bus of Baikal-T1 SoC connecting all
|
||||
high-speed peripheral IP-cores with RAM controller and with MIPS P5600
|
||||
cores. Traffic arbitration is done by means of DW AXI Interconnect (so
|
||||
called AXI Main Interconnect) routing IO requests from one block to
|
||||
another: from CPU to SoC peripherals and between some SoC peripherals
|
||||
(mostly between peripheral devices and RAM, but also between DMA and
|
||||
some peripherals). In case of any protocol error, device not responding
|
||||
an IRQ is raised and a faulty situation is reported to the AXI EHB
|
||||
(Errors Handler Block) embedded on top of the DW AXI Interconnect and
|
||||
accessible by means of the Baikal-T1 System Controller.
|
||||
|
||||
allOf:
|
||||
- $ref: /schemas/simple-bus.yaml#
|
||||
|
||||
properties:
|
||||
compatible:
|
||||
contains:
|
||||
const: baikal,bt1-axi
|
||||
|
||||
reg:
|
||||
minItems: 1
|
||||
items:
|
||||
- description: Synopsys DesignWare AXI Interconnect QoS registers
|
||||
- description: AXI EHB MMIO system controller registers
|
||||
|
||||
reg-names:
|
||||
minItems: 1
|
||||
items:
|
||||
- const: qos
|
||||
- const: ehb
|
||||
|
||||
'#interconnect-cells':
|
||||
const: 1
|
||||
|
||||
syscon:
|
||||
$ref: /schemas/types.yaml#/definitions/phandle
|
||||
description: Phandle to the Baikal-T1 System Controller DT node
|
||||
|
||||
interrupts:
|
||||
maxItems: 1
|
||||
|
||||
clocks:
|
||||
items:
|
||||
- description: Main Interconnect uplink reference clock
|
||||
|
||||
clock-names:
|
||||
items:
|
||||
- const: aclk
|
||||
|
||||
resets:
|
||||
items:
|
||||
- description: Main Interconnect reset line
|
||||
|
||||
reset-names:
|
||||
items:
|
||||
- const: arst
|
||||
|
||||
unevaluatedProperties: false
|
||||
|
||||
required:
|
||||
- compatible
|
||||
- reg
|
||||
- reg-names
|
||||
- syscon
|
||||
- interrupts
|
||||
- clocks
|
||||
- clock-names
|
||||
|
||||
examples:
|
||||
- |
|
||||
#include <dt-bindings/interrupt-controller/mips-gic.h>
|
||||
|
||||
bus@1f05a000 {
|
||||
compatible = "baikal,bt1-axi", "simple-bus";
|
||||
reg = <0x1f05a000 0x1000>,
|
||||
<0x1f04d110 0x8>;
|
||||
reg-names = "qos", "ehb";
|
||||
#address-cells = <1>;
|
||||
#size-cells = <1>;
|
||||
#interconnect-cells = <1>;
|
||||
|
||||
syscon = <&syscon>;
|
||||
|
||||
ranges;
|
||||
|
||||
interrupts = <GIC_SHARED 127 IRQ_TYPE_LEVEL_HIGH>;
|
||||
|
||||
clocks = <&ccu_axi 0>;
|
||||
clock-names = "aclk";
|
||||
|
||||
resets = <&ccu_axi 0>;
|
||||
reset-names = "arst";
|
||||
};
|
||||
...
|
||||
@@ -39,9 +39,6 @@ properties:
|
||||
$ref: /schemas/media/video-interfaces.yaml#
|
||||
unevaluatedProperties: false
|
||||
|
||||
properties:
|
||||
data-lanes: true
|
||||
|
||||
required:
|
||||
- data-lanes
|
||||
|
||||
|
||||
@@ -40,8 +40,12 @@ properties:
|
||||
- auo,g185han01
|
||||
# AU Optronics Corporation 19.0" (1280x1024) TFT LCD panel
|
||||
- auo,g190ean01
|
||||
# AU Optronics Corporation 21.5" FHD (1920x1080) color TFT LCD panel
|
||||
- auo,t215hvn01
|
||||
# BOE AV123Z7M-N17 12.3" (1920x720) LVDS TFT LCD panel
|
||||
- boe,av123z7m-n17
|
||||
# InnoLux 15.6" FHD (1920x1080) TFT LCD panel
|
||||
- innolux,g156hce-l01
|
||||
# Kaohsiung Opto-Electronics Inc. 10.1" WUXGA (1920 x 1200) LVDS TFT LCD panel
|
||||
- koe,tx26d202vm0bwa
|
||||
# Lincoln Technology Solutions, LCD185-101CT 10.1" TFT 1920x1200
|
||||
|
||||
@@ -61,8 +61,6 @@ properties:
|
||||
- auo,p238han01
|
||||
# AU Optronics Corporation 31.5" FHD (1920x1080) TFT LCD panel
|
||||
- auo,p320hvn03
|
||||
# AU Optronics Corporation 21.5" FHD (1920x1080) color TFT LCD panel
|
||||
- auo,t215hvn01
|
||||
# Shanghai AVIC Optoelectronics 7" 1024x600 color TFT-LCD panel
|
||||
- avic,tm070ddh03
|
||||
# BOE AV101HDT-a10 10.1" 1280x720 LVDS panel
|
||||
@@ -180,8 +178,6 @@ properties:
|
||||
- innolux,g121xce-l01
|
||||
# InnoLux 15.0" G150XGE-L05 XGA (1024x768) TFT LCD panel
|
||||
- innolux,g150xge-l05
|
||||
# InnoLux 15.6" FHD (1920x1080) TFT LCD panel
|
||||
- innolux,g156hce-l01
|
||||
# InnoLux 13.3" FHD (1920x1080) TFT LCD panel
|
||||
- innolux,n133hse-ea1
|
||||
# InnoLux 15.6" WXGA TFT LCD panel
|
||||
@@ -204,6 +200,8 @@ properties:
|
||||
- lemaker,bl035-rgb-002
|
||||
# LG 7" (800x480 pixels) TFT LCD panel
|
||||
- lg,lb070wv8
|
||||
# LG 6.1" (1440x3120) IPS LCD panel
|
||||
- lg,sw49410
|
||||
# Logic Technologies LT161010-2NHC 7" WVGA TFT Cap Touch Module
|
||||
- logictechno,lt161010-2nhc
|
||||
# Logic Technologies LT161010-2NHR 7" WVGA TFT Resistive Touch Module
|
||||
|
||||
@@ -36,34 +36,50 @@ properties:
|
||||
reg:
|
||||
description:
|
||||
Addresses to each DSS memory region described in the SoC's TRM.
|
||||
items:
|
||||
- description: common DSS register area
|
||||
- description: VIDL1 light video plane
|
||||
- description: VID video plane
|
||||
- description: OVR1 overlay manager for vp1
|
||||
- description: OVR2 overlay manager for vp2
|
||||
- description: VP1 video port 1
|
||||
- description: VP2 video port 2
|
||||
- description: common1 DSS register area
|
||||
oneOf:
|
||||
- items:
|
||||
- description: common DSS register area
|
||||
- description: VIDL1 light video plane
|
||||
- description: VID video plane
|
||||
- description: OVR1 overlay manager for vp1
|
||||
- description: OVR2 overlay manager for vp2
|
||||
- description: VP1 video port 1
|
||||
- description: VP2 video port 2
|
||||
- description: common1 DSS register area
|
||||
- items:
|
||||
- description: common DSS register area
|
||||
- description: VIDL1 light video plane
|
||||
- description: OVR1 overlay manager for vp1
|
||||
- description: VP1 video port 1
|
||||
- description: common1 DSS register area
|
||||
|
||||
reg-names:
|
||||
items:
|
||||
- const: common
|
||||
- const: vidl1
|
||||
- const: vid
|
||||
- const: ovr1
|
||||
- const: ovr2
|
||||
- const: vp1
|
||||
- const: vp2
|
||||
- const: common1
|
||||
oneOf:
|
||||
- items:
|
||||
- const: common
|
||||
- const: vidl1
|
||||
- const: vid
|
||||
- const: ovr1
|
||||
- const: ovr2
|
||||
- const: vp1
|
||||
- const: vp2
|
||||
- const: common1
|
||||
- items:
|
||||
- const: common
|
||||
- const: vidl1
|
||||
- const: ovr1
|
||||
- const: vp1
|
||||
- const: common1
|
||||
|
||||
clocks:
|
||||
minItems: 2
|
||||
items:
|
||||
- description: fck DSS functional clock
|
||||
- description: vp1 Video Port 1 pixel clock
|
||||
- description: vp2 Video Port 2 pixel clock
|
||||
|
||||
clock-names:
|
||||
minItems: 2
|
||||
items:
|
||||
- const: fck
|
||||
- const: vp1
|
||||
@@ -179,6 +195,24 @@ allOf:
|
||||
ports:
|
||||
properties:
|
||||
port@1: false
|
||||
reg:
|
||||
maxItems: 5
|
||||
reg-names:
|
||||
maxItems: 5
|
||||
clocks:
|
||||
maxItems: 2
|
||||
clock-names:
|
||||
maxItems: 2
|
||||
else:
|
||||
properties:
|
||||
reg:
|
||||
minItems: 8
|
||||
reg-names:
|
||||
minItems: 8
|
||||
clocks:
|
||||
minItems: 3
|
||||
clock-names:
|
||||
minItems: 3
|
||||
|
||||
- if:
|
||||
properties:
|
||||
|
||||
@@ -0,0 +1,69 @@
|
||||
# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
|
||||
%YAML 1.2
|
||||
---
|
||||
$id: http://devicetree.org/schemas/input/touchscreen/fsl,imx25-tcq.yaml#
|
||||
$schema: http://devicetree.org/meta-schemas/core.yaml#
|
||||
|
||||
title: Freescale mx25 TS conversion queue module
|
||||
|
||||
maintainers:
|
||||
- Frank Li <Frank.Li@nxp.com>
|
||||
|
||||
description:
|
||||
mx25 touchscreen conversion queue module which controls the ADC unit of the
|
||||
mx25 for attached touchscreens.
|
||||
|
||||
properties:
|
||||
compatible:
|
||||
const: fsl,imx25-tcq
|
||||
|
||||
reg:
|
||||
maxItems: 1
|
||||
|
||||
interrupts:
|
||||
maxItems: 1
|
||||
|
||||
fsl,wires:
|
||||
description: touch wires number.
|
||||
$ref: /schemas/types.yaml#/definitions/uint32
|
||||
enum: [4, 5]
|
||||
|
||||
fsl,pen-debounce-ns:
|
||||
description:
|
||||
Pen debounce time in nanoseconds.
|
||||
|
||||
fsl,pen-threshold:
|
||||
$ref: /schemas/types.yaml#/definitions/uint32
|
||||
description:
|
||||
Pen-down threshold for the touchscreen. This is a value
|
||||
between 1 and 4096. It is the ratio between the internal reference voltage
|
||||
and the measured voltage after the plate was precharged. Resistance between
|
||||
plates and therefore the voltage decreases with pressure so that a smaller
|
||||
value is equivalent to a higher pressure.
|
||||
|
||||
fsl,settling-time-ns:
|
||||
description:
|
||||
Settling time in nanoseconds. The settling time is before
|
||||
the actual touch detection to wait for an even charge distribution in the
|
||||
plate.
|
||||
|
||||
allOf:
|
||||
- $ref: touchscreen.yaml
|
||||
|
||||
required:
|
||||
- compatible
|
||||
- reg
|
||||
- interrupts
|
||||
- fsl,wires
|
||||
|
||||
unevaluatedProperties: false
|
||||
|
||||
examples:
|
||||
- |
|
||||
touchscreen@50030400 {
|
||||
compatible = "fsl,imx25-tcq";
|
||||
reg = <0x50030400 0x60>;
|
||||
interrupt-parent = <&tscadc>;
|
||||
interrupts = <0>;
|
||||
fsl,wires = <4>;
|
||||
};
|
||||
@@ -1,34 +0,0 @@
|
||||
Freescale mx25 TS conversion queue module
|
||||
|
||||
mx25 touchscreen conversion queue module which controls the ADC unit of the
|
||||
mx25 for attached touchscreens.
|
||||
|
||||
Required properties:
|
||||
- compatible: Should be "fsl,imx25-tcq".
|
||||
- reg: Memory range of the device.
|
||||
- interrupts: Should be the interrupt number associated with this module within
|
||||
the tscadc unit (<0>).
|
||||
- fsl,wires: Should be '<4>' or '<5>'
|
||||
|
||||
Optional properties:
|
||||
- fsl,pen-debounce-ns: Pen debounce time in nanoseconds.
|
||||
- fsl,pen-threshold: Pen-down threshold for the touchscreen. This is a value
|
||||
between 1 and 4096. It is the ratio between the internal reference voltage
|
||||
and the measured voltage after the plate was precharged. Resistance between
|
||||
plates and therefore the voltage decreases with pressure so that a smaller
|
||||
value is equivalent to a higher pressure.
|
||||
- fsl,settling-time-ns: Settling time in nanoseconds. The settling time is before
|
||||
the actual touch detection to wait for an even charge distribution in the
|
||||
plate.
|
||||
|
||||
This device includes two conversion queues which can be added as subnodes.
|
||||
The first queue is for the touchscreen, the second for general purpose ADC.
|
||||
|
||||
Example:
|
||||
tsc: tcq@50030400 {
|
||||
compatible = "fsl,imx25-tcq";
|
||||
reg = <0x50030400 0x60>;
|
||||
interrupt-parent = <&tscadc>;
|
||||
interrupts = <0>;
|
||||
fsl,wires = <4>;
|
||||
};
|
||||
@@ -50,7 +50,7 @@ properties:
|
||||
The 2nd cell contains the interrupt number for the interrupt type.
|
||||
SPI interrupts are in the range [0-987]. PPI interrupts are in the
|
||||
range [0-15]. Extended SPI interrupts are in the range [0-1023].
|
||||
Extended PPI interrupts are in the range [0-127].
|
||||
Extended PPI interrupts are in the range [0-63].
|
||||
|
||||
The 3rd cell is the flags, encoded as follows:
|
||||
bits[3:0] trigger type and level flags.
|
||||
|
||||
@@ -26,7 +26,9 @@ properties:
|
||||
compatible:
|
||||
items:
|
||||
- enum:
|
||||
- qcom,eliza-pdc
|
||||
- qcom,glymur-pdc
|
||||
- qcom,hawi-pdc
|
||||
- qcom,kaanapali-pdc
|
||||
- qcom,milos-pdc
|
||||
- qcom,qcs615-pdc
|
||||
|
||||
@@ -63,18 +63,12 @@ description: |
|
||||
|
||||
select:
|
||||
anyOf:
|
||||
- properties:
|
||||
$nodename:
|
||||
pattern: '^mux-controller'
|
||||
- required:
|
||||
- '#mux-control-cells'
|
||||
- required:
|
||||
- '#mux-state-cells'
|
||||
|
||||
properties:
|
||||
$nodename:
|
||||
pattern: '^mux-controller(@.*|-([0-9]|[1-9][0-9]+))?$'
|
||||
|
||||
'#mux-control-cells':
|
||||
enum: [ 0, 1 ]
|
||||
|
||||
|
||||
@@ -172,7 +172,7 @@ examples:
|
||||
cpu@0 {
|
||||
compatible = "arm,cortex-a7";
|
||||
device_type = "cpu";
|
||||
reg = <0>;
|
||||
reg = <0x0>;
|
||||
next-level-cache = <&L2>;
|
||||
clocks = <&clk_controller 0>;
|
||||
clock-names = "cpu";
|
||||
@@ -183,7 +183,7 @@ examples:
|
||||
cpu@1 {
|
||||
compatible = "arm,cortex-a7";
|
||||
device_type = "cpu";
|
||||
reg = <1>;
|
||||
reg = <0x1>;
|
||||
next-level-cache = <&L2>;
|
||||
clocks = <&clk_controller 0>;
|
||||
clock-names = "cpu";
|
||||
@@ -194,7 +194,7 @@ examples:
|
||||
cpu@100 {
|
||||
compatible = "arm,cortex-a15";
|
||||
device_type = "cpu";
|
||||
reg = <100>;
|
||||
reg = <0x100>;
|
||||
next-level-cache = <&L2>;
|
||||
clocks = <&clk_controller 1>;
|
||||
clock-names = "cpu";
|
||||
@@ -205,7 +205,7 @@ examples:
|
||||
cpu@101 {
|
||||
compatible = "arm,cortex-a15";
|
||||
device_type = "cpu";
|
||||
reg = <101>;
|
||||
reg = <0x101>;
|
||||
next-level-cache = <&L2>;
|
||||
clocks = <&clk_controller 1>;
|
||||
clock-names = "cpu";
|
||||
|
||||
@@ -24,7 +24,9 @@ properties:
|
||||
compatible:
|
||||
oneOf:
|
||||
- items:
|
||||
- const: qcom,sar2130p-spmi-pmic-arb
|
||||
- enum:
|
||||
- qcom,eliza-spmi-pmic-arb
|
||||
- qcom,sar2130p-spmi-pmic-arb
|
||||
- const: qcom,x1e80100-spmi-pmic-arb
|
||||
- const: qcom,x1e80100-spmi-pmic-arb
|
||||
|
||||
|
||||
@@ -34,7 +34,9 @@ properties:
|
||||
- nvidia,tegra186-sysram
|
||||
- nvidia,tegra194-sysram
|
||||
- nvidia,tegra234-sysram
|
||||
- qcom,hawi-imem
|
||||
- qcom,kaanapali-imem
|
||||
- qcom,milos-imem
|
||||
- qcom,rpm-msg-ram
|
||||
- rockchip,rk3288-pmu-sram
|
||||
|
||||
@@ -65,7 +67,7 @@ properties:
|
||||
type: boolean
|
||||
|
||||
patternProperties:
|
||||
"^([a-z0-9]*-)?sram(-section)?@[a-f0-9]+$":
|
||||
"^([a-z0-9]+-)*sram(-section)?@[a-f0-9]+$":
|
||||
type: object
|
||||
description:
|
||||
Each child of the sram node specifies a region of reserved memory.
|
||||
|
||||
@@ -129,63 +129,60 @@ patternProperties:
|
||||
which the thermal framework needs to take action. The actions to
|
||||
be taken are defined in another node called cooling-maps.
|
||||
|
||||
patternProperties:
|
||||
"^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$":
|
||||
type: object
|
||||
additionalProperties:
|
||||
type: object
|
||||
additionalProperties: false
|
||||
|
||||
properties:
|
||||
temperature:
|
||||
$ref: /schemas/types.yaml#/definitions/int32
|
||||
minimum: -273000
|
||||
maximum: 200000
|
||||
description:
|
||||
An integer expressing the trip temperature in millicelsius.
|
||||
properties:
|
||||
temperature:
|
||||
$ref: /schemas/types.yaml#/definitions/int32
|
||||
minimum: -273000
|
||||
maximum: 200000
|
||||
description:
|
||||
An integer expressing the trip temperature in millicelsius.
|
||||
|
||||
hysteresis:
|
||||
$ref: /schemas/types.yaml#/definitions/uint32
|
||||
description:
|
||||
An unsigned integer expressing the hysteresis delta with
|
||||
respect to the trip temperature property above, also in
|
||||
millicelsius. Any cooling action initiated by the framework is
|
||||
maintained until the temperature falls below
|
||||
(trip temperature - hysteresis). This potentially prevents a
|
||||
situation where the trip gets constantly triggered soon after
|
||||
cooling action is removed.
|
||||
hysteresis:
|
||||
$ref: /schemas/types.yaml#/definitions/uint32
|
||||
description:
|
||||
An unsigned integer expressing the hysteresis delta with
|
||||
respect to the trip temperature property above, also in
|
||||
millicelsius. Any cooling action initiated by the framework is
|
||||
maintained until the temperature falls below
|
||||
(trip temperature - hysteresis). This potentially prevents a
|
||||
situation where the trip gets constantly triggered soon after
|
||||
cooling action is removed.
|
||||
|
||||
type:
|
||||
$ref: /schemas/types.yaml#/definitions/string
|
||||
enum:
|
||||
- active # enable active cooling e.g. fans
|
||||
- passive # enable passive cooling e.g. throttling cpu
|
||||
- hot # send notification to driver
|
||||
- critical # send notification to driver, trigger shutdown
|
||||
description: |
|
||||
There are four valid trip types: active, passive, hot,
|
||||
critical.
|
||||
type:
|
||||
$ref: /schemas/types.yaml#/definitions/string
|
||||
enum:
|
||||
- active # enable active cooling e.g. fans
|
||||
- passive # enable passive cooling e.g. throttling cpu
|
||||
- hot # send notification to driver
|
||||
- critical # send notification to driver, trigger shutdown
|
||||
description: |
|
||||
There are four valid trip types: active, passive, hot,
|
||||
critical.
|
||||
|
||||
The critical trip type is used to set the maximum
|
||||
temperature threshold above which the HW becomes
|
||||
unstable and underlying firmware might even trigger a
|
||||
reboot. Hitting the critical threshold triggers a system
|
||||
shutdown.
|
||||
The critical trip type is used to set the maximum
|
||||
temperature threshold above which the HW becomes
|
||||
unstable and underlying firmware might even trigger a
|
||||
reboot. Hitting the critical threshold triggers a system
|
||||
shutdown.
|
||||
|
||||
The hot trip type can be used to send a notification to
|
||||
the thermal driver (if a .notify callback is registered).
|
||||
The action to be taken is left to the driver.
|
||||
The hot trip type can be used to send a notification to
|
||||
the thermal driver (if a .notify callback is registered).
|
||||
The action to be taken is left to the driver.
|
||||
|
||||
The passive trip type can be used to slow down HW e.g. run
|
||||
the CPU, GPU, bus at a lower frequency.
|
||||
The passive trip type can be used to slow down HW e.g. run
|
||||
the CPU, GPU, bus at a lower frequency.
|
||||
|
||||
The active trip type can be used to control other HW to
|
||||
help in cooling e.g. fans can be sped up or slowed down
|
||||
The active trip type can be used to control other HW to
|
||||
help in cooling e.g. fans can be sped up or slowed down
|
||||
|
||||
required:
|
||||
- temperature
|
||||
- hysteresis
|
||||
- type
|
||||
additionalProperties: false
|
||||
|
||||
additionalProperties: false
|
||||
required:
|
||||
- temperature
|
||||
- hysteresis
|
||||
- type
|
||||
|
||||
cooling-maps:
|
||||
type: object
|
||||
|
||||
@@ -48,30 +48,30 @@ from 'scripts/dtc/of_unittest_expect --help'.
|
||||
3. Test-data
|
||||
============
|
||||
|
||||
The Device Tree Source file (drivers/of/unittest-data/testcases.dts) contains
|
||||
The Device Tree Source file (drivers/of/unittest-data/testcases.dtso) contains
|
||||
the test data required for executing the unit tests automated in
|
||||
drivers/of/unittest.c. See the content of the folder::
|
||||
|
||||
drivers/of/unittest-data/tests-*.dtsi
|
||||
|
||||
for the Device Tree Source Include files (.dtsi) included in testcases.dts.
|
||||
for the Device Tree Source Include files (.dtsi) included in testcases.dtso.
|
||||
|
||||
When the kernel is built with CONFIG_OF_UNITTEST enabled, then the following make
|
||||
rule::
|
||||
|
||||
$(obj)/%.dtb: $(src)/%.dts FORCE
|
||||
$(call if_changed_dep, dtc)
|
||||
$(obj)/%.dtbo: $(src)/%.dtso $(DTC) FORCE
|
||||
$(call if_changed_dep,dtc)
|
||||
|
||||
is used to compile the DT source file (testcases.dts) into a binary blob
|
||||
(testcases.dtb), also referred as flattened DT.
|
||||
is used to compile the DT source file (testcases.dtso) into a binary blob
|
||||
(testcases.dtbo), also referred as flattened DT.
|
||||
|
||||
After that, using the following rule the binary blob above is wrapped as an
|
||||
assembly file (testcases.dtb.S)::
|
||||
assembly file (testcases.dtbo.S)::
|
||||
|
||||
$(obj)/%.dtb.S: $(obj)/%.dtb
|
||||
$(call cmd, dt_S_dtb)
|
||||
$(obj)/%.dtbo.S: $(obj)/%.dtbo FORCE
|
||||
$(call if_changed,wrap_S_dtb)
|
||||
|
||||
The assembly file is compiled into an object file (testcases.dtb.o), and is
|
||||
The assembly file is compiled into an object file (testcases.dtbo.o), and is
|
||||
linked into the kernel image.
|
||||
|
||||
|
||||
|
||||
@@ -32,27 +32,30 @@ OF Selftest被设计用来测试提供给设备驱动开发者的接口（includ
|
||||
2. 测试数据
|
||||
===========
|
||||
|
||||
设备树源文件（drivers/of/unittest-data/testcases.dts）包含执行drivers/of/unittest.c
|
||||
中自动化单元测试所需的测试数据。目前，以下设备树源包含文件（.dtsi）被包含在testcases.dt中::
|
||||
设备树源文件（drivers/of/unittest-data/testcases.dtso）包含执行drivers/of/unittest.c
|
||||
中自动化单元测试所需的测试数据。目前，以下设备树源包含文件（.dtsi）被包含在testcases.dtso中::
|
||||
|
||||
drivers/of/unittest-data/tests-interrupts.dtsi
|
||||
drivers/of/unittest-data/tests-platform.dtsi
|
||||
drivers/of/unittest-data/tests-phandle.dtsi
|
||||
drivers/of/unittest-data/tests-match.dtsi
|
||||
drivers/of/unittest-data/tests-address.dtsi
|
||||
drivers/of/unittest-data/tests-overlay.dtsi
|
||||
drivers/of/unittest-data/tests-lifecycle.dtsi
|
||||
|
||||
当内核在启用CONFIG_OF_UNITTEST的情况下被构建时，那么下面的make规则::
|
||||
|
||||
$(obj)/%.dtb: $(src)/%.dts FORCE
|
||||
$(call if_changed_dep, dtc)
|
||||
$(obj)/%.dtbo: $(src)/%.dtso $(DTC) FORCE
|
||||
$(call if_changed_dep,dtc)
|
||||
|
||||
用于将DT源文件（testcases.dts）编译成二进制blob（testcases.dtb），也被称为扁平化的DT。
|
||||
用于将DT源文件（testcases.dtso）编译成二进制blob（testcases.dtbo），也被称为扁平化的DT。
|
||||
|
||||
之后，使用以下规则将上述二进制blob包装成一个汇编文件（testcases.dtb.S）::
|
||||
之后，使用以下规则将上述二进制blob包装成一个汇编文件（testcases.dtbo.S）::
|
||||
|
||||
$(obj)/%.dtb.S: $(obj)/%.dtb
|
||||
$(call cmd, dt_S_dtb)
|
||||
$(obj)/%.dtbo.S: $(obj)/%.dtbo FORCE
|
||||
$(call if_changed,wrap_S_dtb)
|
||||
|
||||
汇编文件被编译成一个对象文件（testcases.dtb.o），并被链接到内核镜像中。
|
||||
汇编文件被编译成一个对象文件（testcases.dtbo.o），并被链接到内核镜像中。
|
||||
|
||||
|
||||
2.1. 添加测试数据
|
||||
|
||||
@@ -38,36 +38,6 @@ config BRCMSTB_GISB_ARB
|
||||
arbiter. This driver provides timeout and target abort error handling
|
||||
and internal bus master decoding.
|
||||
|
||||
config BT1_APB
|
||||
bool "Baikal-T1 APB-bus driver"
|
||||
depends on MIPS_BAIKAL_T1 || COMPILE_TEST
|
||||
select REGMAP_MMIO
|
||||
help
|
||||
Baikal-T1 AXI-APB bridge is used to access the SoC subsystem CSRs.
|
||||
IO requests are routed to this bus by means of the DW AMBA 3 AXI
|
||||
Interconnect. In case of any APB protocol collisions, slave device
|
||||
not responding on timeout an IRQ is raised with an erroneous address
|
||||
reported to the APB terminator (APB Errors Handler Block). This
|
||||
driver provides the interrupt handler to detect the erroneous
|
||||
address, prints an error message about the address fault, updates an
|
||||
errors counter. The counter and the APB-bus operations timeout can be
|
||||
accessed via corresponding sysfs nodes.
|
||||
|
||||
config BT1_AXI
|
||||
bool "Baikal-T1 AXI-bus driver"
|
||||
depends on MIPS_BAIKAL_T1 || COMPILE_TEST
|
||||
select MFD_SYSCON
|
||||
help
|
||||
AXI3-bus is the main communication bus connecting all high-speed
|
||||
peripheral IP-cores with RAM controller and with MIPS P5600 cores on
|
||||
Baikal-T1 SoC. Traffic arbitration is done by means of DW AMBA 3 AXI
|
||||
Interconnect (so called AXI Main Interconnect) routing IO requests
|
||||
from one SoC block to another. This driver provides a way to detect
|
||||
any bus protocol errors and device not responding situations by
|
||||
means of an embedded on top of the interconnect errors handler
|
||||
block (EHB). AXI Interconnect QoS arbitration tuning is currently
|
||||
unsupported.
|
||||
|
||||
config MOXTET
|
||||
tristate "CZ.NIC Turris Mox module configuration bus"
|
||||
depends on SPI_MASTER && OF
|
||||
|
||||
@@ -13,8 +13,6 @@ obj-$(CONFIG_MOXTET) += moxtet.o
|
||||
# DPAA2 fsl-mc bus
|
||||
obj-$(CONFIG_FSL_MC_BUS) += fsl-mc/
|
||||
|
||||
obj-$(CONFIG_BT1_APB) += bt1-apb.o
|
||||
obj-$(CONFIG_BT1_AXI) += bt1-axi.o
|
||||
obj-$(CONFIG_IMX_AIPSTZ) += imx-aipstz.o
|
||||
obj-$(CONFIG_IMX_WEIM) += imx-weim.o
|
||||
obj-$(CONFIG_INTEL_IXP4XX_EB) += intel-ixp4xx-eb.o
|
||||
|
||||
@@ -1,396 +0,0 @@
|
||||
// SPDX-License-Identifier: GPL-2.0-only
|
||||
/*
|
||||
* Copyright (C) 2020 BAIKAL ELECTRONICS, JSC
|
||||
*
|
||||
* Authors:
|
||||
* Serge Semin <Sergey.Semin@baikalelectronics.ru>
|
||||
*
|
||||
* Baikal-T1 APB-bus driver
|
||||
*/
|
||||
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/types.h>
|
||||
#include <linux/device.h>
|
||||
#include <linux/atomic.h>
|
||||
#include <linux/platform_device.h>
|
||||
#include <linux/interrupt.h>
|
||||
#include <linux/io.h>
|
||||
#include <linux/nmi.h>
|
||||
#include <linux/of.h>
|
||||
#include <linux/regmap.h>
|
||||
#include <linux/clk.h>
|
||||
#include <linux/reset.h>
|
||||
#include <linux/time64.h>
|
||||
#include <linux/sysfs.h>
|
||||
|
||||
#define APB_EHB_ISR 0x00
|
||||
#define APB_EHB_ISR_PENDING BIT(0)
|
||||
#define APB_EHB_ISR_MASK BIT(1)
|
||||
#define APB_EHB_ADDR 0x04
|
||||
#define APB_EHB_TIMEOUT 0x08
|
||||
|
||||
#define APB_EHB_TIMEOUT_MIN 0x000003FFU
|
||||
#define APB_EHB_TIMEOUT_MAX 0xFFFFFFFFU
|
||||
|
||||
/*
|
||||
* struct bt1_apb - Baikal-T1 APB EHB private data
|
||||
* @dev: Pointer to the device structure.
|
||||
* @regs: APB EHB registers map.
|
||||
* @res: No-device error injection memory region.
|
||||
* @irq: Errors IRQ number.
|
||||
* @rate: APB-bus reference clock rate.
|
||||
* @pclk: APB-reference clock.
|
||||
* @prst: APB domain reset line.
|
||||
* @count: Number of errors detected.
|
||||
*/
|
||||
struct bt1_apb {
|
||||
struct device *dev;
|
||||
|
||||
struct regmap *regs;
|
||||
void __iomem *res;
|
||||
int irq;
|
||||
|
||||
unsigned long rate;
|
||||
struct clk *pclk;
|
||||
|
||||
struct reset_control *prst;
|
||||
|
||||
atomic_t count;
|
||||
};
|
||||
|
||||
static const struct regmap_config bt1_apb_regmap_cfg = {
|
||||
.reg_bits = 32,
|
||||
.val_bits = 32,
|
||||
.reg_stride = 4,
|
||||
.max_register = APB_EHB_TIMEOUT,
|
||||
.fast_io = true
|
||||
};
|
||||
|
||||
static inline unsigned long bt1_apb_n_to_timeout_us(struct bt1_apb *apb, u32 n)
|
||||
{
|
||||
u64 timeout = (u64)n * USEC_PER_SEC;
|
||||
|
||||
do_div(timeout, apb->rate);
|
||||
|
||||
return timeout;
|
||||
|
||||
}
|
||||
|
||||
static inline unsigned long bt1_apb_timeout_to_n_us(struct bt1_apb *apb,
|
||||
unsigned long timeout)
|
||||
{
|
||||
u64 n = (u64)timeout * apb->rate;
|
||||
|
||||
do_div(n, USEC_PER_SEC);
|
||||
|
||||
return n;
|
||||
|
||||
}
|
||||
|
||||
static irqreturn_t bt1_apb_isr(int irq, void *data)
|
||||
{
|
||||
struct bt1_apb *apb = data;
|
||||
u32 addr = 0;
|
||||
|
||||
regmap_read(apb->regs, APB_EHB_ADDR, &addr);
|
||||
|
||||
dev_crit_ratelimited(apb->dev,
|
||||
"APB-bus fault %d: Slave access timeout at 0x%08x\n",
|
||||
atomic_inc_return(&apb->count),
|
||||
addr);
|
||||
|
||||
/*
|
||||
* Print backtrace on each CPU. This might be pointless if the fault
|
||||
* has happened on the same CPU as the IRQ handler is executed or
|
||||
* the other core proceeded further execution despite the error.
|
||||
* But if it's not, by looking at the trace we would get straight to
|
||||
* the cause of the problem.
|
||||
*/
|
||||
trigger_all_cpu_backtrace();
|
||||
|
||||
regmap_update_bits(apb->regs, APB_EHB_ISR, APB_EHB_ISR_PENDING, 0);
|
||||
|
||||
return IRQ_HANDLED;
|
||||
}
|
||||
|
||||
static void bt1_apb_clear_data(void *data)
|
||||
{
|
||||
struct bt1_apb *apb = data;
|
||||
struct platform_device *pdev = to_platform_device(apb->dev);
|
||||
|
||||
platform_set_drvdata(pdev, NULL);
|
||||
}
|
||||
|
||||
static struct bt1_apb *bt1_apb_create_data(struct platform_device *pdev)
|
||||
{
|
||||
struct device *dev = &pdev->dev;
|
||||
struct bt1_apb *apb;
|
||||
int ret;
|
||||
|
||||
apb = devm_kzalloc(dev, sizeof(*apb), GFP_KERNEL);
|
||||
if (!apb)
|
||||
return ERR_PTR(-ENOMEM);
|
||||
|
||||
ret = devm_add_action(dev, bt1_apb_clear_data, apb);
|
||||
if (ret) {
|
||||
dev_err(dev, "Can't add APB EHB data clear action\n");
|
||||
return ERR_PTR(ret);
|
||||
}
|
||||
|
||||
apb->dev = dev;
|
||||
atomic_set(&apb->count, 0);
|
||||
platform_set_drvdata(pdev, apb);
|
||||
|
||||
return apb;
|
||||
}
|
||||
|
||||
static int bt1_apb_request_regs(struct bt1_apb *apb)
|
||||
{
|
||||
struct platform_device *pdev = to_platform_device(apb->dev);
|
||||
void __iomem *regs;
|
||||
|
||||
regs = devm_platform_ioremap_resource_byname(pdev, "ehb");
|
||||
if (IS_ERR(regs)) {
|
||||
dev_err(apb->dev, "Couldn't map APB EHB registers\n");
|
||||
return PTR_ERR(regs);
|
||||
}
|
||||
|
||||
apb->regs = devm_regmap_init_mmio(apb->dev, regs, &bt1_apb_regmap_cfg);
|
||||
if (IS_ERR(apb->regs)) {
|
||||
dev_err(apb->dev, "Couldn't create APB EHB regmap\n");
|
||||
return PTR_ERR(apb->regs);
|
||||
}
|
||||
|
||||
apb->res = devm_platform_ioremap_resource_byname(pdev, "nodev");
|
||||
if (IS_ERR(apb->res))
|
||||
dev_err(apb->dev, "Couldn't map reserved region\n");
|
||||
|
||||
return PTR_ERR_OR_ZERO(apb->res);
|
||||
}
|
||||
|
||||
static int bt1_apb_request_rst(struct bt1_apb *apb)
|
||||
{
|
||||
int ret;
|
||||
|
||||
apb->prst = devm_reset_control_get_optional_exclusive(apb->dev, "prst");
|
||||
if (IS_ERR(apb->prst))
|
||||
return dev_err_probe(apb->dev, PTR_ERR(apb->prst),
|
||||
"Couldn't get reset control line\n");
|
||||
|
||||
ret = reset_control_deassert(apb->prst);
|
||||
if (ret)
|
||||
dev_err(apb->dev, "Failed to deassert the reset line\n");
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int bt1_apb_request_clk(struct bt1_apb *apb)
|
||||
{
|
||||
apb->pclk = devm_clk_get_enabled(apb->dev, "pclk");
|
||||
if (IS_ERR(apb->pclk))
|
||||
return dev_err_probe(apb->dev, PTR_ERR(apb->pclk),
|
||||
"Couldn't get APB clock descriptor\n");
|
||||
|
||||
apb->rate = clk_get_rate(apb->pclk);
|
||||
if (!apb->rate) {
|
||||
dev_err(apb->dev, "Invalid clock rate\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void bt1_apb_clear_irq(void *data)
|
||||
{
|
||||
struct bt1_apb *apb = data;
|
||||
|
||||
regmap_update_bits(apb->regs, APB_EHB_ISR, APB_EHB_ISR_MASK, 0);
|
||||
}
|
||||
|
||||
static int bt1_apb_request_irq(struct bt1_apb *apb)
|
||||
{
|
||||
struct platform_device *pdev = to_platform_device(apb->dev);
|
||||
int ret;
|
||||
|
||||
apb->irq = platform_get_irq(pdev, 0);
|
||||
if (apb->irq < 0)
|
||||
return apb->irq;
|
||||
|
||||
ret = devm_request_irq(apb->dev, apb->irq, bt1_apb_isr, IRQF_SHARED,
|
||||
"bt1-apb", apb);
|
||||
if (ret) {
|
||||
dev_err(apb->dev, "Couldn't request APB EHB IRQ\n");
|
||||
return ret;
|
||||
}
|
||||
|
||||
ret = devm_add_action(apb->dev, bt1_apb_clear_irq, apb);
|
||||
if (ret) {
|
||||
dev_err(apb->dev, "Can't add APB EHB IRQs clear action\n");
|
||||
return ret;
|
||||
}
|
||||
|
||||
/* Unmask IRQ and clear it' pending flag. */
|
||||
regmap_update_bits(apb->regs, APB_EHB_ISR,
|
||||
APB_EHB_ISR_PENDING | APB_EHB_ISR_MASK,
|
||||
APB_EHB_ISR_MASK);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static ssize_t count_show(struct device *dev, struct device_attribute *attr,
|
||||
char *buf)
|
||||
{
|
||||
struct bt1_apb *apb = dev_get_drvdata(dev);
|
||||
|
||||
return scnprintf(buf, PAGE_SIZE, "%d\n", atomic_read(&apb->count));
|
||||
}
|
||||
static DEVICE_ATTR_RO(count);
|
||||
|
||||
static ssize_t timeout_show(struct device *dev, struct device_attribute *attr,
|
||||
char *buf)
|
||||
{
|
||||
struct bt1_apb *apb = dev_get_drvdata(dev);
|
||||
unsigned long timeout;
|
||||
int ret;
|
||||
u32 n;
|
||||
|
||||
ret = regmap_read(apb->regs, APB_EHB_TIMEOUT, &n);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
timeout = bt1_apb_n_to_timeout_us(apb, n);
|
||||
|
||||
return scnprintf(buf, PAGE_SIZE, "%lu\n", timeout);
|
||||
}
|
||||
|
||||
static ssize_t timeout_store(struct device *dev,
|
||||
struct device_attribute *attr,
|
||||
const char *buf, size_t count)
|
||||
{
|
||||
struct bt1_apb *apb = dev_get_drvdata(dev);
|
||||
unsigned long timeout;
|
||||
int ret;
|
||||
u32 n;
|
||||
|
||||
if (kstrtoul(buf, 0, &timeout) < 0)
|
||||
return -EINVAL;
|
||||
|
||||
n = bt1_apb_timeout_to_n_us(apb, timeout);
|
||||
n = clamp(n, APB_EHB_TIMEOUT_MIN, APB_EHB_TIMEOUT_MAX);
|
||||
|
||||
ret = regmap_write(apb->regs, APB_EHB_TIMEOUT, n);
|
||||
|
||||
return ret ?: count;
|
||||
}
|
||||
static DEVICE_ATTR_RW(timeout);
|
||||
|
||||
static ssize_t inject_error_show(struct device *dev,
|
||||
struct device_attribute *attr, char *buf)
|
||||
{
|
||||
return scnprintf(buf, PAGE_SIZE, "Error injection: nodev irq\n");
|
||||
}
|
||||
|
||||
static ssize_t inject_error_store(struct device *dev,
|
||||
struct device_attribute *attr,
|
||||
const char *data, size_t count)
|
||||
{
|
||||
struct bt1_apb *apb = dev_get_drvdata(dev);
|
||||
|
||||
/*
|
||||
* Either dummy read from the unmapped address in the APB IO area
|
||||
* or manually set the IRQ status.
|
||||
*/
|
||||
if (sysfs_streq(data, "nodev"))
|
||||
readl(apb->res);
|
||||
else if (sysfs_streq(data, "irq"))
|
||||
regmap_update_bits(apb->regs, APB_EHB_ISR, APB_EHB_ISR_PENDING,
|
||||
APB_EHB_ISR_PENDING);
|
||||
else
|
||||
return -EINVAL;
|
||||
|
||||
return count;
|
||||
}
|
||||
static DEVICE_ATTR_RW(inject_error);
|
||||
|
||||
static struct attribute *bt1_apb_sysfs_attrs[] = {
|
||||
&dev_attr_count.attr,
|
||||
&dev_attr_timeout.attr,
|
||||
&dev_attr_inject_error.attr,
|
||||
NULL
|
||||
};
|
||||
ATTRIBUTE_GROUPS(bt1_apb_sysfs);
|
||||
|
||||
static void bt1_apb_remove_sysfs(void *data)
|
||||
{
|
||||
struct bt1_apb *apb = data;
|
||||
|
||||
device_remove_groups(apb->dev, bt1_apb_sysfs_groups);
|
||||
}
|
||||
|
||||
static int bt1_apb_init_sysfs(struct bt1_apb *apb)
|
||||
{
|
||||
int ret;
|
||||
|
||||
ret = device_add_groups(apb->dev, bt1_apb_sysfs_groups);
|
||||
if (ret) {
|
||||
dev_err(apb->dev, "Failed to create EHB APB sysfs nodes\n");
|
||||
return ret;
|
||||
}
|
||||
|
||||
ret = devm_add_action_or_reset(apb->dev, bt1_apb_remove_sysfs, apb);
|
||||
if (ret)
|
||||
dev_err(apb->dev, "Can't add APB EHB sysfs remove action\n");
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int bt1_apb_probe(struct platform_device *pdev)
|
||||
{
|
||||
struct bt1_apb *apb;
|
||||
int ret;
|
||||
|
||||
apb = bt1_apb_create_data(pdev);
|
||||
if (IS_ERR(apb))
|
||||
return PTR_ERR(apb);
|
||||
|
||||
ret = bt1_apb_request_regs(apb);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
ret = bt1_apb_request_rst(apb);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
ret = bt1_apb_request_clk(apb);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
ret = bt1_apb_request_irq(apb);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
ret = bt1_apb_init_sysfs(apb);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct of_device_id bt1_apb_of_match[] = {
|
||||
{ .compatible = "baikal,bt1-apb" },
|
||||
{ }
|
||||
};
|
||||
MODULE_DEVICE_TABLE(of, bt1_apb_of_match);
|
||||
|
||||
static struct platform_driver bt1_apb_driver = {
|
||||
.probe = bt1_apb_probe,
|
||||
.driver = {
|
||||
.name = "bt1-apb",
|
||||
.of_match_table = bt1_apb_of_match
|
||||
}
|
||||
};
|
||||
module_platform_driver(bt1_apb_driver);
|
||||
|
||||
MODULE_AUTHOR("Serge Semin <Sergey.Semin@baikalelectronics.ru>");
|
||||
MODULE_DESCRIPTION("Baikal-T1 APB-bus driver");
|
||||
@@ -1,292 +0,0 @@
|
||||
// SPDX-License-Identifier: GPL-2.0-only
|
||||
/*
|
||||
* Copyright (C) 2020 BAIKAL ELECTRONICS, JSC
|
||||
*
|
||||
* Authors:
|
||||
* Serge Semin <Sergey.Semin@baikalelectronics.ru>
|
||||
*
|
||||
* Baikal-T1 AXI-bus driver
|
||||
*/
|
||||
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/types.h>
|
||||
#include <linux/bitfield.h>
|
||||
#include <linux/device.h>
|
||||
#include <linux/atomic.h>
|
||||
#include <linux/regmap.h>
|
||||
#include <linux/platform_device.h>
|
||||
#include <linux/mfd/syscon.h>
|
||||
#include <linux/interrupt.h>
|
||||
#include <linux/io.h>
|
||||
#include <linux/nmi.h>
|
||||
#include <linux/of.h>
|
||||
#include <linux/clk.h>
|
||||
#include <linux/reset.h>
|
||||
#include <linux/sysfs.h>
|
||||
|
||||
#define BT1_AXI_WERRL 0x110
|
||||
#define BT1_AXI_WERRH 0x114
|
||||
#define BT1_AXI_WERRH_TYPE BIT(23)
|
||||
#define BT1_AXI_WERRH_ADDR_FLD 24
|
||||
#define BT1_AXI_WERRH_ADDR_MASK GENMASK(31, BT1_AXI_WERRH_ADDR_FLD)
|
||||
|
||||
/*
|
||||
* struct bt1_axi - Baikal-T1 AXI-bus private data
|
||||
* @dev: Pointer to the device structure.
|
||||
* @qos_regs: AXI Interconnect QoS tuning registers.
|
||||
* @sys_regs: Baikal-T1 System Controller registers map.
|
||||
* @irq: Errors IRQ number.
|
||||
* @aclk: AXI reference clock.
|
||||
* @arst: AXI Interconnect reset line.
|
||||
* @count: Number of errors detected.
|
||||
*/
|
||||
struct bt1_axi {
|
||||
struct device *dev;
|
||||
|
||||
void __iomem *qos_regs;
|
||||
struct regmap *sys_regs;
|
||||
int irq;
|
||||
|
||||
struct clk *aclk;
|
||||
|
||||
struct reset_control *arst;
|
||||
|
||||
atomic_t count;
|
||||
};
|
||||
|
||||
static irqreturn_t bt1_axi_isr(int irq, void *data)
|
||||
{
|
||||
struct bt1_axi *axi = data;
|
||||
u32 low = 0, high = 0;
|
||||
|
||||
regmap_read(axi->sys_regs, BT1_AXI_WERRL, &low);
|
||||
regmap_read(axi->sys_regs, BT1_AXI_WERRH, &high);
|
||||
|
||||
dev_crit_ratelimited(axi->dev,
|
||||
"AXI-bus fault %d: %s at 0x%x%08x\n",
|
||||
atomic_inc_return(&axi->count),
|
||||
high & BT1_AXI_WERRH_TYPE ? "no slave" : "slave protocol error",
|
||||
high, low);
|
||||
|
||||
/*
|
||||
* Print backtrace on each CPU. This might be pointless if the fault
|
||||
* has happened on the same CPU as the IRQ handler is executed or
|
||||
* the other core proceeded further execution despite the error.
|
||||
* But if it's not, by looking at the trace we would get straight to
|
||||
* the cause of the problem.
|
||||
*/
|
||||
trigger_all_cpu_backtrace();
|
||||
|
||||
return IRQ_HANDLED;
|
||||
}
|
||||
|
||||
static void bt1_axi_clear_data(void *data)
|
||||
{
|
||||
struct bt1_axi *axi = data;
|
||||
struct platform_device *pdev = to_platform_device(axi->dev);
|
||||
|
||||
platform_set_drvdata(pdev, NULL);
|
||||
}
|
||||
|
||||
static struct bt1_axi *bt1_axi_create_data(struct platform_device *pdev)
|
||||
{
|
||||
struct device *dev = &pdev->dev;
|
||||
struct bt1_axi *axi;
|
||||
int ret;
|
||||
|
||||
axi = devm_kzalloc(dev, sizeof(*axi), GFP_KERNEL);
|
||||
if (!axi)
|
||||
return ERR_PTR(-ENOMEM);
|
||||
|
||||
ret = devm_add_action(dev, bt1_axi_clear_data, axi);
|
||||
if (ret) {
|
||||
dev_err(dev, "Can't add AXI EHB data clear action\n");
|
||||
return ERR_PTR(ret);
|
||||
}
|
||||
|
||||
axi->dev = dev;
|
||||
atomic_set(&axi->count, 0);
|
||||
platform_set_drvdata(pdev, axi);
|
||||
|
||||
return axi;
|
||||
}
|
||||
|
||||
static int bt1_axi_request_regs(struct bt1_axi *axi)
|
||||
{
|
||||
struct platform_device *pdev = to_platform_device(axi->dev);
|
||||
struct device *dev = axi->dev;
|
||||
|
||||
axi->sys_regs = syscon_regmap_lookup_by_phandle(dev->of_node, "syscon");
|
||||
if (IS_ERR(axi->sys_regs)) {
|
||||
dev_err(dev, "Couldn't find syscon registers\n");
|
||||
return PTR_ERR(axi->sys_regs);
|
||||
}
|
||||
|
||||
axi->qos_regs = devm_platform_ioremap_resource_byname(pdev, "qos");
|
||||
if (IS_ERR(axi->qos_regs))
|
||||
dev_err(dev, "Couldn't map AXI-bus QoS registers\n");
|
||||
|
||||
return PTR_ERR_OR_ZERO(axi->qos_regs);
|
||||
}
|
||||
|
||||
static int bt1_axi_request_rst(struct bt1_axi *axi)
|
||||
{
|
||||
int ret;
|
||||
|
||||
axi->arst = devm_reset_control_get_optional_exclusive(axi->dev, "arst");
|
||||
if (IS_ERR(axi->arst))
|
||||
return dev_err_probe(axi->dev, PTR_ERR(axi->arst),
|
||||
"Couldn't get reset control line\n");
|
||||
|
||||
ret = reset_control_deassert(axi->arst);
|
||||
if (ret)
|
||||
dev_err(axi->dev, "Failed to deassert the reset line\n");
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int bt1_axi_request_clk(struct bt1_axi *axi)
|
||||
{
|
||||
axi->aclk = devm_clk_get_enabled(axi->dev, "aclk");
|
||||
if (IS_ERR(axi->aclk))
|
||||
return dev_err_probe(axi->dev, PTR_ERR(axi->aclk),
|
||||
"Couldn't get AXI Interconnect clock\n");
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int bt1_axi_request_irq(struct bt1_axi *axi)
|
||||
{
|
||||
struct platform_device *pdev = to_platform_device(axi->dev);
|
||||
int ret;
|
||||
|
||||
axi->irq = platform_get_irq(pdev, 0);
|
||||
if (axi->irq < 0)
|
||||
return axi->irq;
|
||||
|
||||
ret = devm_request_irq(axi->dev, axi->irq, bt1_axi_isr, IRQF_SHARED,
|
||||
"bt1-axi", axi);
|
||||
if (ret)
|
||||
dev_err(axi->dev, "Couldn't request AXI EHB IRQ\n");
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static ssize_t count_show(struct device *dev,
|
||||
struct device_attribute *attr, char *buf)
|
||||
{
|
||||
struct bt1_axi *axi = dev_get_drvdata(dev);
|
||||
|
||||
return scnprintf(buf, PAGE_SIZE, "%d\n", atomic_read(&axi->count));
|
||||
}
|
||||
static DEVICE_ATTR_RO(count);
|
||||
|
||||
static ssize_t inject_error_show(struct device *dev,
|
||||
struct device_attribute *attr, char *buf)
|
||||
{
|
||||
return scnprintf(buf, PAGE_SIZE, "Error injection: bus unaligned\n");
|
||||
}
|
||||
|
||||
static ssize_t inject_error_store(struct device *dev,
|
||||
struct device_attribute *attr,
|
||||
const char *data, size_t count)
|
||||
{
|
||||
struct bt1_axi *axi = dev_get_drvdata(dev);
|
||||
|
||||
/*
|
||||
* Performing unaligned read from the memory will cause the CM2 bus
|
||||
* error while unaligned writing - the AXI bus write error handled
|
||||
* by this driver.
|
||||
*/
|
||||
if (sysfs_streq(data, "bus"))
|
||||
readb(axi->qos_regs);
|
||||
else if (sysfs_streq(data, "unaligned"))
|
||||
writeb(0, axi->qos_regs);
|
||||
else
|
||||
return -EINVAL;
|
||||
|
||||
return count;
|
||||
}
|
||||
static DEVICE_ATTR_RW(inject_error);
|
||||
|
||||
static struct attribute *bt1_axi_sysfs_attrs[] = {
|
||||
&dev_attr_count.attr,
|
||||
&dev_attr_inject_error.attr,
|
||||
NULL
|
||||
};
|
||||
ATTRIBUTE_GROUPS(bt1_axi_sysfs);
|
||||
|
||||
static void bt1_axi_remove_sysfs(void *data)
|
||||
{
|
||||
struct bt1_axi *axi = data;
|
||||
|
||||
device_remove_groups(axi->dev, bt1_axi_sysfs_groups);
|
||||
}
|
||||
|
||||
static int bt1_axi_init_sysfs(struct bt1_axi *axi)
|
||||
{
|
||||
int ret;
|
||||
|
||||
ret = device_add_groups(axi->dev, bt1_axi_sysfs_groups);
|
||||
if (ret) {
|
||||
dev_err(axi->dev, "Failed to add sysfs files group\n");
|
||||
return ret;
|
||||
}
|
||||
|
||||
ret = devm_add_action_or_reset(axi->dev, bt1_axi_remove_sysfs, axi);
|
||||
if (ret)
|
||||
dev_err(axi->dev, "Can't add AXI EHB sysfs remove action\n");
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int bt1_axi_probe(struct platform_device *pdev)
|
||||
{
|
||||
struct bt1_axi *axi;
|
||||
int ret;
|
||||
|
||||
axi = bt1_axi_create_data(pdev);
|
||||
if (IS_ERR(axi))
|
||||
return PTR_ERR(axi);
|
||||
|
||||
ret = bt1_axi_request_regs(axi);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
ret = bt1_axi_request_rst(axi);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
ret = bt1_axi_request_clk(axi);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
ret = bt1_axi_request_irq(axi);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
ret = bt1_axi_init_sysfs(axi);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct of_device_id bt1_axi_of_match[] = {
|
||||
{ .compatible = "baikal,bt1-axi" },
|
||||
{ }
|
||||
};
|
||||
MODULE_DEVICE_TABLE(of, bt1_axi_of_match);
|
||||
|
||||
static struct platform_driver bt1_axi_driver = {
|
||||
.probe = bt1_axi_probe,
|
||||
.driver = {
|
||||
.name = "bt1-axi",
|
||||
.of_match_table = bt1_axi_of_match
|
||||
}
|
||||
};
|
||||
module_platform_driver(bt1_axi_driver);
|
||||
|
||||
MODULE_AUTHOR("Serge Semin <Sergey.Semin@baikalelectronics.ru>");
|
||||
MODULE_DESCRIPTION("Baikal-T1 AXI-bus driver");
|
||||
@@ -115,15 +115,10 @@ MODULE_DEVICE_TABLE(of, airoha_cpufreq_match_list);
|
||||
|
||||
static int __init airoha_cpufreq_init(void)
|
||||
{
|
||||
struct device_node *np = of_find_node_by_path("/");
|
||||
const struct of_device_id *match;
|
||||
int ret;
|
||||
|
||||
if (!np)
|
||||
return -ENODEV;
|
||||
|
||||
match = of_match_node(airoha_cpufreq_match_list, np);
|
||||
of_node_put(np);
|
||||
match = of_machine_get_match(airoha_cpufreq_match_list);
|
||||
if (!match)
|
||||
return -ENODEV;
|
||||
|
||||
|
||||
@@ -291,17 +291,9 @@ static int qcom_cpufreq_ipq8064_name_version(struct device *cpu_dev,
|
||||
ret = qcom_smem_get_soc_id(&msm_id);
|
||||
if (ret == -ENODEV) {
|
||||
const struct of_device_id *match;
|
||||
struct device_node *root;
|
||||
|
||||
root = of_find_node_by_path("/");
|
||||
if (!root) {
|
||||
ret = -ENODEV;
|
||||
goto exit;
|
||||
}
|
||||
|
||||
/* Fallback to compatible match with no SMEM initialized */
|
||||
match = of_match_node(qcom_cpufreq_ipq806x_match_list, root);
|
||||
of_node_put(root);
|
||||
match = of_machine_get_match(qcom_cpufreq_ipq806x_match_list);
|
||||
if (!match) {
|
||||
ret = -ENODEV;
|
||||
goto exit;
|
||||
@@ -647,14 +639,10 @@ MODULE_DEVICE_TABLE(of, qcom_cpufreq_match_list);
|
||||
*/
|
||||
static int __init qcom_cpufreq_init(void)
|
||||
{
|
||||
struct device_node *np __free(device_node) = of_find_node_by_path("/");
|
||||
const struct of_device_id *match;
|
||||
int ret;
|
||||
|
||||
if (!np)
|
||||
return -ENODEV;
|
||||
|
||||
match = of_match_node(qcom_cpufreq_match_list, np);
|
||||
match = of_machine_get_match(qcom_cpufreq_match_list);
|
||||
if (!match)
|
||||
return -ENODEV;
|
||||
|
||||
|
||||
@@ -502,16 +502,6 @@ static const struct of_device_id ti_cpufreq_of_match[] __maybe_unused = {
|
||||
{},
|
||||
};
|
||||
|
||||
static const struct of_device_id *ti_cpufreq_match_node(void)
|
||||
{
|
||||
struct device_node *np __free(device_node) = of_find_node_by_path("/");
|
||||
const struct of_device_id *match;
|
||||
|
||||
match = of_match_node(ti_cpufreq_of_match, np);
|
||||
|
||||
return match;
|
||||
}
|
||||
|
||||
static int ti_cpufreq_probe(struct platform_device *pdev)
|
||||
{
|
||||
u32 version[VERSION_COUNT];
|
||||
@@ -596,7 +586,7 @@ static int __init ti_cpufreq_init(void)
|
||||
const struct of_device_id *match;
|
||||
|
||||
/* Check to ensure we are on a compatible platform */
|
||||
match = ti_cpufreq_match_node();
|
||||
match = of_machine_get_match(ti_cpufreq_of_match);
|
||||
if (match)
|
||||
platform_device_register_data(NULL, "ti-cpufreq", -1, match,
|
||||
sizeof(*match));
|
||||
|
||||
@@ -463,13 +463,12 @@ int of_machine_read_model(const char **model)
|
||||
EXPORT_SYMBOL_GPL(of_machine_read_model);
|
||||
|
||||
/**
|
||||
* of_machine_device_match - Test root of device tree against a of_device_id array
|
||||
* of_machine_get_match - Test root of device tree against an of_device_id array
|
||||
* @matches: NULL terminated array of of_device_id match structures to search in
|
||||
*
|
||||
* Returns true if the root node has any of the given compatible values in its
|
||||
* compatible property.
|
||||
* Returns matched entry or NULL
|
||||
*/
|
||||
bool of_machine_device_match(const struct of_device_id *matches)
|
||||
const struct of_device_id *of_machine_get_match(const struct of_device_id *matches)
|
||||
{
|
||||
struct device_node *root;
|
||||
const struct of_device_id *match = NULL;
|
||||
@@ -480,9 +479,9 @@ bool of_machine_device_match(const struct of_device_id *matches)
|
||||
of_node_put(root);
|
||||
}
|
||||
|
||||
return match != NULL;
|
||||
return match;
|
||||
}
|
||||
EXPORT_SYMBOL(of_machine_device_match);
|
||||
EXPORT_SYMBOL(of_machine_get_match);
|
||||
|
||||
/**
|
||||
* of_machine_get_match_data - Tell if root of device tree has a matching of_match structure
|
||||
@@ -493,15 +492,8 @@ EXPORT_SYMBOL(of_machine_device_match);
|
||||
const void *of_machine_get_match_data(const struct of_device_id *matches)
|
||||
{
|
||||
const struct of_device_id *match;
|
||||
struct device_node *root;
|
||||
|
||||
root = of_find_node_by_path("/");
|
||||
if (!root)
|
||||
return NULL;
|
||||
|
||||
match = of_match_node(matches, root);
|
||||
of_node_put(root);
|
||||
|
||||
match = of_machine_get_match(matches);
|
||||
if (!match)
|
||||
return NULL;
|
||||
|
||||
|
||||
@@ -68,7 +68,7 @@ void __init of_fdt_limit_memory(int limit)
|
||||
|
||||
bool of_fdt_device_is_available(const void *blob, unsigned long node)
|
||||
{
|
||||
const char *status = fdt_getprop(blob, node, "status", NULL);
|
||||
const char *status = fdt_stringlist_get(blob, node, "status", 0, NULL);
|
||||
|
||||
if (!status)
|
||||
return true;
|
||||
@@ -677,22 +677,15 @@ void __init of_flat_dt_read_addr_size(const __be32 *prop, int entry_index,
|
||||
* specific compatible values.
|
||||
*/
|
||||
static int of_fdt_is_compatible(const void *blob,
|
||||
unsigned long node, const char *compat)
|
||||
unsigned long node, const char *compat)
|
||||
{
|
||||
const char *cp;
|
||||
int cplen;
|
||||
unsigned long l, score = 0;
|
||||
int idx = 0, score = 0;
|
||||
|
||||
cp = fdt_getprop(blob, node, "compatible", &cplen);
|
||||
if (cp == NULL)
|
||||
return 0;
|
||||
while (cplen > 0) {
|
||||
while ((cp = fdt_stringlist_get(blob, node, "compatible", idx++, NULL))) {
|
||||
score++;
|
||||
if (of_compat_cmp(cp, compat, strlen(compat)) == 0)
|
||||
return score;
|
||||
l = strlen(cp) + 1;
|
||||
cp += l;
|
||||
cplen -= l;
|
||||
}
|
||||
|
||||
return 0;
|
||||
@@ -741,9 +734,10 @@ const char * __init of_flat_dt_get_machine_name(void)
|
||||
const char *name;
|
||||
unsigned long dt_root = of_get_flat_dt_root();
|
||||
|
||||
name = of_get_flat_dt_prop(dt_root, "model", NULL);
|
||||
name = fdt_stringlist_get(initial_boot_params, dt_root, "model", 0, NULL);
|
||||
if (!name)
|
||||
name = of_get_flat_dt_prop(dt_root, "compatible", NULL);
|
||||
name = fdt_stringlist_get(initial_boot_params, dt_root,
|
||||
"compatible", 0, NULL);
|
||||
return name;
|
||||
}
|
||||
|
||||
@@ -775,19 +769,14 @@ const void * __init of_flat_dt_match_machine(const void *default_match,
|
||||
}
|
||||
if (!best_data) {
|
||||
const char *prop;
|
||||
int size;
|
||||
int idx = 0, size;
|
||||
|
||||
pr_err("\n unrecognized device tree list:\n[ ");
|
||||
|
||||
prop = of_get_flat_dt_prop(dt_root, "compatible", &size);
|
||||
if (prop) {
|
||||
while (size > 0) {
|
||||
printk("'%s' ", prop);
|
||||
size -= strlen(prop) + 1;
|
||||
prop += strlen(prop) + 1;
|
||||
}
|
||||
}
|
||||
printk("]\n\n");
|
||||
while ((prop = fdt_stringlist_get(initial_boot_params, dt_root,
|
||||
"compatible", idx++, &size)))
|
||||
pr_err("'%s' ", prop);
|
||||
pr_err("]\n\n");
|
||||
return NULL;
|
||||
}
|
||||
|
||||
@@ -974,9 +963,9 @@ int __init early_init_dt_scan_chosen_stdout(void)
|
||||
if (offset < 0)
|
||||
return -ENOENT;
|
||||
|
||||
p = fdt_getprop(fdt, offset, "stdout-path", &l);
|
||||
p = fdt_stringlist_get(fdt, offset, "stdout-path", 0, &l);
|
||||
if (!p)
|
||||
p = fdt_getprop(fdt, offset, "linux,stdout-path", &l);
|
||||
p = fdt_stringlist_get(fdt, offset, "linux,stdout-path", 0, &l);
|
||||
if (!p || !l)
|
||||
return -ENOENT;
|
||||
|
||||
@@ -1052,7 +1041,8 @@ int __init early_init_dt_scan_memory(void)
|
||||
const void *fdt = initial_boot_params;
|
||||
|
||||
fdt_for_each_subnode(node, fdt, 0) {
|
||||
const char *type = of_get_flat_dt_prop(node, "device_type", NULL);
|
||||
const char *type = fdt_stringlist_get(fdt, node,
|
||||
"device_type", 0, NULL);
|
||||
const __be32 *reg;
|
||||
int i, l;
|
||||
bool hotpluggable;
|
||||
|
||||
@@ -500,7 +500,7 @@ static const struct of_device_id reserved_mem_matches[] = {
|
||||
|
||||
static int __init of_platform_default_populate_init(void)
|
||||
{
|
||||
struct device_node *node;
|
||||
struct device_node *node, *reserved;
|
||||
|
||||
device_links_supplier_sync_state_pause();
|
||||
|
||||
@@ -563,8 +563,14 @@ static int __init of_platform_default_populate_init(void)
|
||||
* platform_devices for every node in /reserved-memory with a
|
||||
* "compatible",
|
||||
*/
|
||||
for_each_matching_node(node, reserved_mem_matches)
|
||||
of_platform_device_create(node, NULL, NULL);
|
||||
reserved = of_find_node_by_path("/reserved-memory");
|
||||
if (reserved) {
|
||||
for_each_child_of_node(reserved, node) {
|
||||
if (of_match_node(reserved_mem_matches, node))
|
||||
of_platform_device_create(node, NULL, NULL);
|
||||
}
|
||||
of_node_put(reserved);
|
||||
}
|
||||
|
||||
node = of_find_node_by_path("/firmware");
|
||||
if (node) {
|
||||
|
||||
@@ -88,7 +88,7 @@ EXPORT_SYMBOL(of_graph_is_present);
|
||||
* Search for a property in a device node and count the number of elements of
|
||||
* size elem_size in it.
|
||||
*
|
||||
* Return: The number of elements on sucess, -EINVAL if the property does not
|
||||
* Return: The number of elements on success, -EINVAL if the property does not
|
||||
* exist or its length does not match a multiple of elem_size and -ENODATA if
|
||||
* the property does not have a value.
|
||||
*/
|
||||
@@ -1620,12 +1620,36 @@ static int of_fwnode_irq_get(const struct fwnode_handle *fwnode,
|
||||
return of_irq_get(to_of_node(fwnode), index);
|
||||
}
|
||||
|
||||
static int match_property_by_path(const char *node_path, const char *prop_name,
|
||||
const char *value)
|
||||
{
|
||||
struct device_node *np __free(device_node) = of_find_node_by_path(node_path);
|
||||
|
||||
return of_property_match_string(np, prop_name, value);
|
||||
}
|
||||
|
||||
static bool of_is_fwnode_add_links_supported(void)
|
||||
{
|
||||
static int is_supported = -1;
|
||||
|
||||
if (!IS_ENABLED(CONFIG_X86))
|
||||
return true;
|
||||
|
||||
if (is_supported != -1)
|
||||
return !!is_supported;
|
||||
|
||||
is_supported = !((match_property_by_path("/soc", "compatible", "intel,ce4100-cp") >= 0) ||
|
||||
(match_property_by_path("/", "architecture", "OLPC") >= 0));
|
||||
|
||||
return !!is_supported;
|
||||
}
|
||||
|
||||
static int of_fwnode_add_links(struct fwnode_handle *fwnode)
|
||||
{
|
||||
const struct property *p;
|
||||
struct device_node *con_np = to_of_node(fwnode);
|
||||
|
||||
if (IS_ENABLED(CONFIG_X86))
|
||||
if (!of_is_fwnode_add_links_supported())
|
||||
return 0;
|
||||
|
||||
if (!con_np)
|
||||
|
||||
@@ -896,8 +896,6 @@ static void __init of_unittest_changeset(void)
|
||||
|
||||
unittest(!of_changeset_apply(&chgset), "apply failed\n");
|
||||
|
||||
of_node_put(nchangeset);
|
||||
|
||||
/* Make sure node names are constructed correctly */
|
||||
unittest((np = of_find_node_by_path("/testcase-data/changeset/n2/n21")),
|
||||
"'%pOF' not added\n", n21);
|
||||
@@ -919,6 +917,7 @@ static void __init of_unittest_changeset(void)
|
||||
if (!ret)
|
||||
unittest(strcmp(propstr, "hello") == 0, "original value not in updated property after revert");
|
||||
|
||||
of_node_put(nchangeset);
|
||||
of_changeset_destroy(&chgset);
|
||||
|
||||
of_node_put(n1);
|
||||
@@ -4318,7 +4317,6 @@ static int testdrv_probe(struct pci_dev *pdev, const struct pci_device_id *id)
|
||||
|
||||
size = info->dtbo_end - info->dtbo_begin;
|
||||
ret = of_overlay_fdt_apply(info->dtbo_begin, size, &ovcs_id, dn);
|
||||
of_node_put(dn);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
|
||||
@@ -640,7 +640,7 @@ static struct qcom_pdm_data *qcom_pdm_start(void)
|
||||
struct qcom_pdm_data *data;
|
||||
int ret, i;
|
||||
|
||||
match = of_match_node(qcom_pdm_domains, of_root);
|
||||
match = of_machine_get_match(qcom_pdm_domains);
|
||||
if (!match) {
|
||||
pr_notice("PDM: no support for the platform, userspace daemon might be required.\n");
|
||||
return ERR_PTR(-ENODEV);
|
||||
|
||||
@@ -410,7 +410,7 @@ extern int of_alias_get_id(const struct device_node *np, const char *stem);
|
||||
extern int of_alias_get_highest_id(const char *stem);
|
||||
|
||||
bool of_machine_compatible_match(const char *const *compats);
|
||||
bool of_machine_device_match(const struct of_device_id *matches);
|
||||
const struct of_device_id *of_machine_get_match(const struct of_device_id *matches);
|
||||
const void *of_machine_get_match_data(const struct of_device_id *matches);
|
||||
|
||||
/**
|
||||
@@ -880,9 +880,9 @@ static inline bool of_machine_compatible_match(const char *const *compats)
|
||||
return false;
|
||||
}
|
||||
|
||||
static inline bool of_machine_device_match(const struct of_device_id *matches)
|
||||
static inline const struct of_device_id *of_machine_get_match(const struct of_device_id *matches)
|
||||
{
|
||||
return false;
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static inline const void *
|
||||
@@ -990,6 +990,11 @@ static inline int of_numa_init(void)
|
||||
}
|
||||
#endif
|
||||
|
||||
static inline bool of_machine_device_match(const struct of_device_id *matches)
|
||||
{
|
||||
return of_machine_get_match(matches) != NULL;
|
||||
}
|
||||
|
||||
static inline struct device_node *of_find_matching_node(
|
||||
struct device_node *from,
|
||||
const struct of_device_id *matches)
|
||||
|
||||
@@ -2929,7 +2929,7 @@ sub process {
|
||||
}
|
||||
$checklicenseline = 1;
|
||||
|
||||
if ($realfile !~ /^MAINTAINERS/) {
|
||||
if ($realfile !~ /^(MAINTAINERS|dev\/null)/) {
|
||||
my $last_binding_patch = $is_binding_patch;
|
||||
|
||||
$is_binding_patch = () = $realfile =~ m@^(?:Documentation/devicetree/|include/dt-bindings/)@;
|
||||
|
||||
@@ -324,7 +324,7 @@ ERROR(node_name_chars, check_node_name_chars, NODECHARS);
|
||||
static void check_node_name_chars_strict(struct check *c, struct dt_info *dti,
|
||||
struct node *node)
|
||||
{
|
||||
int n = strspn(node->name, c->data);
|
||||
size_t n = strspn(node->name, c->data);
|
||||
|
||||
if (n < node->basenamelen)
|
||||
FAIL(c, dti, node, "Character '%c' not recommended in node name",
|
||||
|
||||
@@ -39,8 +39,6 @@ extern bool treesource_error;
|
||||
#define DPRINT(fmt, ...) do { } while (0)
|
||||
#endif
|
||||
|
||||
static int dts_version = 1;
|
||||
|
||||
#define BEGIN_DEFAULT() DPRINT("<V1>\n"); \
|
||||
BEGIN(V1); \
|
||||
|
||||
@@ -101,7 +99,6 @@ static void PRINTF(1, 2) lexical_error(const char *fmt, ...);
|
||||
|
||||
<*>"/dts-v1/" {
|
||||
DPRINT("Keyword: /dts-v1/\n");
|
||||
dts_version = 1;
|
||||
BEGIN_DEFAULT();
|
||||
return DT_V1;
|
||||
}
|
||||
|
||||
@@ -227,7 +227,7 @@ struct node {
|
||||
struct node *next_sibling;
|
||||
|
||||
char *fullpath;
|
||||
int basenamelen;
|
||||
size_t basenamelen;
|
||||
|
||||
cell_t phandle;
|
||||
int addr_cells, size_cells;
|
||||
|
||||
@@ -110,6 +110,14 @@ int fdt_check_header(const void *fdt)
|
||||
|| (fdt_totalsize(fdt) > INT_MAX))
|
||||
return -FDT_ERR_TRUNCATED;
|
||||
|
||||
/* memrsv block must be 8 byte aligned */
|
||||
if (fdt_off_mem_rsvmap(fdt) % sizeof(uint64_t))
|
||||
return -FDT_ERR_ALIGNMENT;
|
||||
|
||||
/* Structure block must be 4 byte aligned */
|
||||
if (fdt_off_dt_struct(fdt) % FDT_TAGSIZE)
|
||||
return -FDT_ERR_ALIGNMENT;
|
||||
|
||||
/* Bounds check memrsv block */
|
||||
if (!check_off_(hdrsize, fdt_totalsize(fdt),
|
||||
fdt_off_mem_rsvmap(fdt)))
|
||||
|
||||
@@ -22,6 +22,12 @@ static int fdt_blocks_misordered_(const void *fdt,
|
||||
(fdt_off_dt_strings(fdt) + fdt_size_dt_strings(fdt)));
|
||||
}
|
||||
|
||||
static void fdt_downgrade_version(void *fdt)
|
||||
{
|
||||
if (!can_assume(LATEST) && fdt_version(fdt) > FDT_LAST_SUPPORTED_VERSION)
|
||||
fdt_set_version(fdt, FDT_LAST_SUPPORTED_VERSION);
|
||||
}
|
||||
|
||||
static int fdt_rw_probe_(void *fdt)
|
||||
{
|
||||
if (can_assume(VALID_DTB))
|
||||
@@ -33,9 +39,8 @@ static int fdt_rw_probe_(void *fdt)
|
||||
if (fdt_blocks_misordered_(fdt, sizeof(struct fdt_reserve_entry),
|
||||
fdt_size_dt_struct(fdt)))
|
||||
return -FDT_ERR_BADLAYOUT;
|
||||
if (!can_assume(LATEST) && fdt_version(fdt) > 17)
|
||||
fdt_set_version(fdt, 17);
|
||||
|
||||
fdt_downgrade_version(fdt);
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
@@ -1 +1 @@
|
||||
#define DTC_VERSION "DTC 1.7.2-ga26ef640"
|
||||
#define DTC_VERSION "DTC 1.7.2-g53373d13"
|
||||
|
||||
Reference in New Issue
Block a user