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author | José Pekkarinen <jose.pekkarinen@nokia.com> | 2016-04-11 10:41:07 +0300 |
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committer | José Pekkarinen <jose.pekkarinen@nokia.com> | 2016-04-13 08:17:18 +0300 |
commit | e09b41010ba33a20a87472ee821fa407a5b8da36 (patch) | |
tree | d10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/Documentation/devicetree/bindings/memory-controllers/ath79-ddr-controller.txt | |
parent | f93b97fd65072de626c074dbe099a1fff05ce060 (diff) |
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page.
During the rebasing, the following patch collided:
Force tick interrupt and get rid of softirq magic(I70131fb85).
Collisions have been removed because its logic was found on the
source already.
Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/Documentation/devicetree/bindings/memory-controllers/ath79-ddr-controller.txt')
-rw-r--r-- | kernel/Documentation/devicetree/bindings/memory-controllers/ath79-ddr-controller.txt | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/kernel/Documentation/devicetree/bindings/memory-controllers/ath79-ddr-controller.txt b/kernel/Documentation/devicetree/bindings/memory-controllers/ath79-ddr-controller.txt new file mode 100644 index 000000000..efe35a065 --- /dev/null +++ b/kernel/Documentation/devicetree/bindings/memory-controllers/ath79-ddr-controller.txt @@ -0,0 +1,35 @@ +Binding for Qualcomm Atheros AR7xxx/AR9xxx DDR controller + +The DDR controller of the ARxxx and AR9xxx families provides an interface +to flush the FIFO between various devices and the DDR. This is mainly used +by the IRQ controller to flush the FIFO before running the interrupt handler +of such devices. + +Required properties: + +- compatible: has to be "qca,<soc-type>-ddr-controller", + "qca,[ar7100|ar7240]-ddr-controller" as fallback. + On SoC with PCI support "qca,ar7100-ddr-controller" should be used as + fallback, otherwise "qca,ar7240-ddr-controller" should be used. +- reg: Base address and size of the controllers memory area +- #qca,ddr-wb-channel-cells: has to be 1, the index of the write buffer + channel + +Example: + + ddr_ctrl: memory-controller@18000000 { + compatible = "qca,ar9132-ddr-controller", + "qca,ar7240-ddr-controller"; + reg = <0x18000000 0x100>; + + #qca,ddr-wb-channel-cells = <1>; + }; + + ... + + interrupt-controller { + ... + qca,ddr-wb-channel-interrupts = <2>, <3>, <4>, <5>; + qca,ddr-wb-channels = <&ddr_ctrl 3>, <&ddr_ctrl 2>, + <&ddr_ctrl 0>, <&ddr_ctrl 1>; + }; |