b27186abb3
Pull Devicetree updates from Rob Herring:
"A bit bigger than normal as I've been busy this cycle.
There's a few things with dependencies and a few things subsystem
maintainers didn't pick up, so I'm taking them thru my tree.
The fixes from Johan didn't get into linux-next, but they've been
waiting for some time now and they are what's left of what subsystem
maintainers didn't pick up.
Summary:
- Sync dtc with upstream version v1.4.7-14-gc86da84d30e4
- Work to get rid of direct accesses to struct device_node name and
type pointers in preparation for removing them. New helpers for
parsing DT cpu nodes and conversions to use the helpers. printk
conversions to %pOFn for printing DT node names. Most went thru
subystem trees, so this is the remainder.
- Fixes to DT child node lookups to actually be restricted to child
nodes instead of treewide.
- Refactoring of dtb targets out of arch code. This makes the support
more uniform and enables building all dtbs on c6x, microblaze, and
powerpc.
- Various DT binding updates for Renesas r8a7744 SoC
- Vendor prefixes for Facebook, OLPC
- Restructuring of some ARM binding docs moving some peripheral
bindings out of board/SoC binding files
- New "secure-chosen" binding for secure world settings on ARM
- Dual licensing of 2 DT IRQ binding headers"
* tag 'devicetree-for-4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (78 commits)
ARM: dt: relicense two DT binding IRQ headers
power: supply: twl4030-charger: fix OF sibling-node lookup
NFC: nfcmrvl_uart: fix OF child-node lookup
net: stmmac: dwmac-sun8i: fix OF child-node lookup
net: bcmgenet: fix OF child-node lookup
drm/msm: fix OF child-node lookup
drm/mediatek: fix OF sibling-node lookup
of: Add missing exports of node name compare functions
dt-bindings: Add OLPC vendor prefix
dt-bindings: misc: bk4: Add device tree binding for Liebherr's BK4 SPI bus
dt-bindings: thermal: samsung: Add SPDX license identifier
dt-bindings: clock: samsung: Add SPDX license identifiers
dt-bindings: timer: ostm: Add R7S9210 support
dt-bindings: phy: rcar-gen2: Add r8a7744 support
dt-bindings: can: rcar_can: Add r8a7744 support
dt-bindings: timer: renesas, cmt: Document r8a7744 CMT support
dt-bindings: watchdog: renesas-wdt: Document r8a7744 support
dt-bindings: thermal: rcar: Add device tree support for r8a7744
Documentation: dt: Add binding for /secure-chosen/stdout-path
dt-bindings: arm: zte: Move sysctrl bindings to their own doc
...
86 lines
3.9 KiB
Plaintext
86 lines
3.9 KiB
Plaintext
* Renesas R-Car Compare Match Timer (CMT)
|
|
|
|
The CMT is a multi-channel 16/32/48-bit timer/counter with configurable clock
|
|
inputs and programmable compare match.
|
|
|
|
Channels share hardware resources but their counter and compare match value
|
|
are independent. A particular CMT instance can implement only a subset of the
|
|
channels supported by the CMT model. Channel indices represent the hardware
|
|
position of the channel in the CMT and don't match the channel numbers in the
|
|
datasheets.
|
|
|
|
Required Properties:
|
|
|
|
- compatible: must contain one or more of the following:
|
|
- "renesas,cmt-48-sh73a0" for the sh73A0 48-bit CMT
|
|
(CMT1)
|
|
- "renesas,cmt-48-r8a7740" for the r8a7740 48-bit CMT
|
|
(CMT1)
|
|
- "renesas,cmt-48" for all non-second generation 48-bit CMT
|
|
(CMT1 on sh73a0 and r8a7740)
|
|
This is a fallback for the above renesas,cmt-48-* entries.
|
|
|
|
- "renesas,r8a73a4-cmt0" for the 32-bit CMT0 device included in r8a73a4.
|
|
- "renesas,r8a73a4-cmt1" for the 48-bit CMT1 device included in r8a73a4.
|
|
- "renesas,r8a7743-cmt0" for the 32-bit CMT0 device included in r8a7743.
|
|
- "renesas,r8a7743-cmt1" for the 48-bit CMT1 device included in r8a7743.
|
|
- "renesas,r8a7744-cmt0" for the 32-bit CMT0 device included in r8a7744.
|
|
- "renesas,r8a7744-cmt1" for the 48-bit CMT1 device included in r8a7744.
|
|
- "renesas,r8a7745-cmt0" for the 32-bit CMT0 device included in r8a7745.
|
|
- "renesas,r8a7745-cmt1" for the 48-bit CMT1 device included in r8a7745.
|
|
- "renesas,r8a7790-cmt0" for the 32-bit CMT0 device included in r8a7790.
|
|
- "renesas,r8a7790-cmt1" for the 48-bit CMT1 device included in r8a7790.
|
|
- "renesas,r8a7791-cmt0" for the 32-bit CMT0 device included in r8a7791.
|
|
- "renesas,r8a7791-cmt1" for the 48-bit CMT1 device included in r8a7791.
|
|
- "renesas,r8a7793-cmt0" for the 32-bit CMT0 device included in r8a7793.
|
|
- "renesas,r8a7793-cmt1" for the 48-bit CMT1 device included in r8a7793.
|
|
- "renesas,r8a7794-cmt0" for the 32-bit CMT0 device included in r8a7794.
|
|
- "renesas,r8a7794-cmt1" for the 48-bit CMT1 device included in r8a7794.
|
|
- "renesas,r8a77970-cmt0" for the 32-bit CMT0 device included in r8a77970.
|
|
- "renesas,r8a77970-cmt1" for the 48-bit CMT1 device included in r8a77970.
|
|
- "renesas,r8a77980-cmt0" for the 32-bit CMT0 device included in r8a77980.
|
|
- "renesas,r8a77980-cmt1" for the 48-bit CMT1 device included in r8a77980.
|
|
|
|
- "renesas,rcar-gen2-cmt0" for 32-bit CMT0 devices included in R-Car Gen2
|
|
and RZ/G1.
|
|
- "renesas,rcar-gen2-cmt1" for 48-bit CMT1 devices included in R-Car Gen2
|
|
and RZ/G1.
|
|
These are fallbacks for r8a73a4, R-Car Gen2 and RZ/G1 entries
|
|
listed above.
|
|
- "renesas,rcar-gen3-cmt0" for 32-bit CMT0 devices included in R-Car Gen3.
|
|
- "renesas,rcar-gen3-cmt1" for 48-bit CMT1 devices included in R-Car Gen3.
|
|
These are fallbacks for R-Car Gen3 entries listed above.
|
|
|
|
- reg: base address and length of the registers block for the timer module.
|
|
- interrupts: interrupt-specifier for the timer, one per channel.
|
|
- clocks: a list of phandle + clock-specifier pairs, one for each entry
|
|
in clock-names.
|
|
- clock-names: must contain "fck" for the functional clock.
|
|
|
|
|
|
Example: R8A7790 (R-Car H2) CMT0 and CMT1 nodes
|
|
|
|
cmt0: timer@ffca0000 {
|
|
compatible = "renesas,r8a7790-cmt0", "renesas,rcar-gen2-cmt0";
|
|
reg = <0 0xffca0000 0 0x1004>;
|
|
interrupts = <0 142 IRQ_TYPE_LEVEL_HIGH>,
|
|
<0 142 IRQ_TYPE_LEVEL_HIGH>;
|
|
clocks = <&mstp1_clks R8A7790_CLK_CMT0>;
|
|
clock-names = "fck";
|
|
};
|
|
|
|
cmt1: timer@e6130000 {
|
|
compatible = "renesas,r8a7790-cmt1", "renesas,rcar-gen2-cmt1";
|
|
reg = <0 0xe6130000 0 0x1004>;
|
|
interrupts = <0 120 IRQ_TYPE_LEVEL_HIGH>,
|
|
<0 121 IRQ_TYPE_LEVEL_HIGH>,
|
|
<0 122 IRQ_TYPE_LEVEL_HIGH>,
|
|
<0 123 IRQ_TYPE_LEVEL_HIGH>,
|
|
<0 124 IRQ_TYPE_LEVEL_HIGH>,
|
|
<0 125 IRQ_TYPE_LEVEL_HIGH>,
|
|
<0 126 IRQ_TYPE_LEVEL_HIGH>,
|
|
<0 127 IRQ_TYPE_LEVEL_HIGH>;
|
|
clocks = <&mstp3_clks R8A7790_CLK_CMT1>;
|
|
clock-names = "fck";
|
|
};
|