Commit 2fc695a1 authored by Yisen.Zhuang\(Zhuangyuzeng\)'s avatar Yisen.Zhuang\(Zhuangyuzeng\) Committed by David S. Miller

Documentation: Bindings: Update DT binding for separating dsaf dev support

Because debug dsaf port was separated from service dsaf port, this patch
updates the related information of DT binding.
Signed-off-by: default avatarYisen Zhuang <yisen.zhuang@huawei.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 0d768fc6
......@@ -7,19 +7,47 @@ Required properties:
- mode: dsa fabric mode string. only support one of dsaf modes like these:
"2port-64vf",
"6port-16rss",
"6port-16vf".
"6port-16vf",
"single-port".
- interrupt-parent: the interrupt parent of this device.
- interrupts: should contain the DSA Fabric and rcb interrupt.
- reg: specifies base physical address(es) and size of the device registers.
The first region is external interface control register base and size.
The second region is SerDes base register and size.
The first region is external interface control register base and size(optional,
only be used when subctrl-syscon is not exists). It is recommended using
subctrl-syscon rather than this address.
The second region is SerDes base register and size(optional, only be used when
serdes-syscon in port node is not exists. It is recommended using
serdes-syscon rather than this address.
The third region is the PPE register base and size.
The fourth region is dsa fabric base register and size.
The fifth region is cpld base register and size, it is not required if do not use cpld.
- phy-handle: phy handle of physicl port, 0 if not any phy device. see ethernet.txt [1].
The fourth region is dsa fabric base register and size. It is not required for
single-port mode.
- reg-names: may be ppe-base and(or) dsaf-base. It is used to find the
corresponding reg's index.
- phy-handle: phy handle of physicl port, 0 if not any phy device. It is optional
attribute. If port node is exists, phy-handle in each port node will be used.
see ethernet.txt [1].
- subctrl-syscon: is syscon handle for external interface control register.
- reset-field-offset: is offset of reset field. Its value depends on the hardware
user manual.
- buf-size: rx buffer size, should be 16-1024.
- desc-num: number of description in TX and RX queue, should be 512, 1024, 2048 or 4096.
- port: subnodes of dsaf. A dsaf node may contain several port nodes(Depending
on mode of dsaf). Port node contain some attributes listed below:
- port-id: is physical port index in one dsaf.
- phy-handle: phy handle of physicl port. It is not required if there isn't
phy device. see ethernet.txt [1].
- serdes-syscon: is syscon handle for SerDes register.
- cpld-syscon: is syscon handle for cpld register. It is not required if there
isn't cpld device.
- cpld-ctrl-reg: is cpld register offset. It is not required if there isn't
cpld-syscon.
- port-rst-offset: is offset of reset field for each port in dsaf. Its value
depends on the hardware user manual.
- port-mode-offset: is offset of port mode field for each port in dsaf. Its
value depends on the hardware user manual.
[1] Documentation/devicetree/bindings/net/phy.txt
Example:
......@@ -28,11 +56,11 @@ dsaf0: dsa@c7000000 {
compatible = "hisilicon,hns-dsaf-v1";
mode = "6port-16rss";
interrupt-parent = <&mbigen_dsa>;
reg = <0x0 0xC0000000 0x0 0x420000
0x0 0xC2000000 0x0 0x300000
0x0 0xc5000000 0x0 0x890000
reg = <0x0 0xc5000000 0x0 0x890000
0x0 0xc7000000 0x0 0x60000>;
phy-handle = <0 0 0 0 &soc0_phy4 &soc0_phy5 0 0>;
reg-names = "ppe-base", "dsaf-base";
subctrl-syscon = <&subctrl>;
reset-field-offset = 0;
interrupts = <131 4>,<132 4>, <133 4>,<134 4>,
<135 4>,<136 4>, <137 4>,<138 4>,
<139 4>,<140 4>, <141 4>,<142 4>,
......@@ -43,4 +71,15 @@ dsaf0: dsa@c7000000 {
buf-size = <4096>;
desc-num = <1024>;
dma-coherent;
prot@0 {
port-id = 0;
phy-handle = <&phy0>;
serdes-syscon = <&serdes>;
};
prot@1 {
port-id = 1;
serdes-syscon = <&serdes>;
};
};
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