The current binding only cover PCI devices so extend it for SoC devices.
Most SoC platforms use an MTD partition for the calibration data
instead of an EEPROM. The qca,no-eeprom property was added to allow
loading the EEPROM content using firmware loading. This new binding
replace this hack with NVMEM cells, so we also mark the qca,no-eeprom
property as deprecated in case anyone ever used it.
Signed-off-by: Alban <albeu@xxxxxxx>
---
.../devicetree/bindings/net/wireless/qca,ath9k.txt | 41 ++++++++++++++++++++--
1 file changed, 38 insertions(+), 3 deletions(-)
diff --git a/Documentation/devicetree/bindings/net/wireless/qca,ath9k.txt b/Documentation/devicetree/bindings/net/wireless/qca,ath9k.txt
index b7396c8..61f5f6d 100644
--- a/Documentation/devicetree/bindings/net/wireless/qca,ath9k.txt
+++ b/Documentation/devicetree/bindings/net/wireless/qca,ath9k.txt
@@ -27,16 +27,34 @@ Required properties:
- 0034 for AR9462
- 0036 for AR9565
- 0037 for AR9485
+ For SoC devices the compatible should be "qca,<soctype>-wmac"
+ and one of the following fallbacks:
+ - "qca,ar9100-wmac"
+ - "qca,ar9330-wmac"
+ - "qca,ar9340-wmac"
+ - "qca,qca9550-wmac"
+ - "qca,qca9530-wmac"
- reg: Address and length of the register set for the device.
+Required properties for SoC devices:
+- interrupt-parent: phandle of the parent interrupt controller.
+- interrupts: Interrupt specifier for the controllers interrupt.
+
Optional properties:
+- mac-address: See ethernet.txt in the parent directory
+- local-mac-address: See ethernet.txt in the parent directory
+- clock-names: has to be "ref"
+- clocks: phandle of the reference clock
+- resets: phandle of the reset line
+- nvmem-cell-names: has to be "eeprom" and/or "address"
+- nvmem-cells: phandle to the eeprom nvmem cell and/or to the mac address
+ nvmem cell.
+
+Deprecated properties:
- qca,no-eeprom: Indicates that there is no physical EEPROM connected to the
ath9k wireless chip (in this case the calibration /
EEPROM data will be loaded from userspace using the
kernel firmware loader).
-- mac-address: See ethernet.txt in the parent directory
-- local-mac-address: See ethernet.txt in the parent directory
-
In this example, the node is defined as child node of the PCI controller:
&pci0 {
@@ -46,3 +64,20 @@ In this example, the node is defined as child node of the PCI controller:
qca,no-eeprom;
};
};
+
+In this example it is defined as a SoC device:
+ wmac@180c0000 {
+ compatible = "qca,ar9132-wmac", "qca,ar9100-wmac";
+ reg = <0x180c0000 0x30000>;
+
+ interrupt-parent = <&cpuintc>;
+ interrupts = <2>;
+
+ clock-names = "ref";
+ clocks = <&extosc>;
+
+ nvmem-cell-names = "eeprom", "address";
+ nvmem-cells = <&wmac_eeprom>, <&wmac_address>;
+
+ resets = <&rst 22>;
+ };
--
2.7.4
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