diff options
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/net/cpsw.txt | 8 | ||||
| -rw-r--r-- | Documentation/devicetree/bindings/net/hisilicon-hix5hd2-gmac.txt | 27 | ||||
| -rw-r--r-- | Documentation/networking/ieee802154.txt | 26 |
3 files changed, 39 insertions, 22 deletions
diff --git a/Documentation/devicetree/bindings/net/cpsw.txt b/Documentation/devicetree/bindings/net/cpsw.txt index 5ad439f30135..ebda7c93453a 100644 --- a/Documentation/devicetree/bindings/net/cpsw.txt +++ b/Documentation/devicetree/bindings/net/cpsw.txt @@ -20,8 +20,6 @@ Required properties: - slaves : Specifies number for slaves - active_slave : Specifies the slave to use for time stamping, ethtool and SIOCGMIIPHY -- cpts_clock_mult : Numerator to convert input clock ticks into nanoseconds -- cpts_clock_shift : Denominator to convert input clock ticks into nanoseconds Optional properties: - ti,hwmods : Must be "cpgmac0" @@ -35,7 +33,11 @@ Optional properties: For example in dra72x-evm, pcf gpio has to be driven low so that cpsw slave 0 and phy data lines are connected via mux. - +- cpts_clock_mult : Numerator to convert input clock ticks into nanoseconds +- cpts_clock_shift : Denominator to convert input clock ticks into nanoseconds + Mult and shift will be calculated basing on CPTS + rftclk frequency if both cpts_clock_shift and + cpts_clock_mult properties are not provided. Slave Properties: Required properties: diff --git a/Documentation/devicetree/bindings/net/hisilicon-hix5hd2-gmac.txt b/Documentation/devicetree/bindings/net/hisilicon-hix5hd2-gmac.txt index 75d398bb1fbb..063c02da018a 100644 --- a/Documentation/devicetree/bindings/net/hisilicon-hix5hd2-gmac.txt +++ b/Documentation/devicetree/bindings/net/hisilicon-hix5hd2-gmac.txt @@ -1,7 +1,12 @@ Hisilicon hix5hd2 gmac controller Required properties: -- compatible: should be "hisilicon,hix5hd2-gmac". +- compatible: should contain one of the following SoC strings: + * "hisilicon,hix5hd2-gemac" + * "hisilicon,hi3798cv200-gemac" + and one of the following version string: + * "hisilicon,hisi-gemac-v1" + * "hisilicon,hisi-gemac-v2" - reg: specifies base physical address(s) and size of the device registers. The first region is the MAC register base and size. The second region is external interface control register. @@ -12,6 +17,16 @@ Required properties: - phy-handle: see ethernet.txt [1]. - mac-address: see ethernet.txt [1]. - clocks: clock phandle and specifier pair. +- clock-names: contain the clock name "mac_core"(required) and "mac_ifc"(optional). +- resets: should contain the phandle to the MAC core reset signal(optional), + the MAC interface reset signal(optional) + and the PHY reset signal(optional). +- reset-names: contain the reset signal name "mac_core"(optional), + "mac_ifc"(optional) and "phy"(optional). +- hisilicon,phy-reset-delays-us: triplet of delays if PHY reset signal given. + The 1st cell is reset pre-delay in micro seconds. + The 2nd cell is reset pulse in micro seconds. + The 3rd cell is reset post-delay in micro seconds. - PHY subnode: inherits from phy binding [2] @@ -20,15 +35,19 @@ Required properties: Example: gmac0: ethernet@f9840000 { - compatible = "hisilicon,hix5hd2-gmac"; + compatible = "hisilicon,hi3798cv200-gemac", "hisilicon,hisi-gemac-v2"; reg = <0xf9840000 0x1000>,<0xf984300c 0x4>; interrupts = <0 71 4>; #address-cells = <1>; #size-cells = <0>; - phy-mode = "mii"; + phy-mode = "rgmii"; phy-handle = <&phy2>; mac-address = [00 00 00 00 00 00]; - clocks = <&clock HIX5HD2_MAC0_CLK>; + clocks = <&crg HISTB_ETH0_MAC_CLK>, <&crg HISTB_ETH0_MACIF_CLK>; + clock-names = "mac_core", "mac_ifc"; + resets = <&crg 0xcc 8>, <&crg 0xcc 10>, <&crg 0xcc 12>; + reset-names = "mac_core", "mac_ifc", "phy"; + hisilicon,phy-reset-delays-us = <10000 10000 30000>; phy2: ethernet-phy@2 { reg = <2>; diff --git a/Documentation/networking/ieee802154.txt b/Documentation/networking/ieee802154.txt index aa69ccc481db..c4114346f054 100644 --- a/Documentation/networking/ieee802154.txt +++ b/Documentation/networking/ieee802154.txt @@ -4,20 +4,20 @@ Introduction ============ -The IEEE 802.15.4 working group focuses on standardization of bottom -two layers: Medium Access Control (MAC) and Physical (PHY). And there +The IEEE 802.15.4 working group focuses on standardization of the bottom +two layers: Medium Access Control (MAC) and Physical access (PHY). And there are mainly two options available for upper layers: - ZigBee - proprietary protocol from the ZigBee Alliance - 6LoWPAN - IPv6 networking over low rate personal area networks -The linux-wpan project goal is to provide a complete implementation +The goal of the Linux-wpan is to provide a complete implementation of the IEEE 802.15.4 and 6LoWPAN protocols. IEEE 802.15.4 is a stack of protocols for organizing Low-Rate Wireless Personal Area Networks. The stack is composed of three main parts: - IEEE 802.15.4 layer; We have chosen to use plain Berkeley socket API, - the generic Linux networking stack to transfer IEEE 802.15.4 messages - and a special protocol over genetlink for configuration/management + the generic Linux networking stack to transfer IEEE 802.15.4 data + messages and a special protocol over netlink for configuration/management - MAC - provides access to shared channel and reliable data delivery - PHY - represents device drivers @@ -33,15 +33,13 @@ include/net/af_ieee802154.h header or in the special header in the userspace package (see either http://wpan.cakelab.org/ or the git tree at https://github.com/linux-wpan/wpan-tools). -One can use SOCK_RAW for passing raw data towards device xmit function. YMMV. - Kernel side ============= Like with WiFi, there are several types of devices implementing IEEE 802.15.4. 1) 'HardMAC'. The MAC layer is implemented in the device itself, the device - exports MLME and data API. + exports a management (e.g. MLME) and data API. 2) 'SoftMAC' or just radio. These types of devices are just radio transceivers possibly with some kinds of acceleration like automatic CRC computation and comparation, automagic ACK handling, address matching, etc. @@ -106,7 +104,7 @@ Fake drivers In addition there is a driver available which simulates a real device with SoftMAC (fakelb - IEEE 802.15.4 loopback driver) interface. This option -provides possibility to test and debug stack without usage of real hardware. +provides a possibility to test and debug the stack without usage of real hardware. See sources in drivers/net/ieee802154 folder for more details. @@ -125,17 +123,15 @@ to support the IPv6 minimum MTU requirement [RFC2460], and stateless header compression for IPv6 datagrams (LOWPAN_HC1 and LOWPAN_HC2) to reduce the relatively large IPv6 and UDP headers down to (in the best case) several bytes. -In Semptember 2011 the standard update was published - [RFC6282]. +In September 2011 the standard update was published - [RFC6282]. It deprecates HC1 and HC2 compression and defines IPHC encoding format which is used in this Linux implementation. All the code related to 6lowpan you may find in files: net/6lowpan/* and net/ieee802154/6lowpan/* -To setup 6lowpan interface you need (busybox release > 1.17.0): -1. Add IEEE802.15.4 interface and initialize PANid; +To setup a 6LoWPAN interface you need: +1. Add IEEE802.15.4 interface and set channel and PAN ID; 2. Add 6lowpan interface by command like: # ip link add link wpan0 name lowpan0 type lowpan -3. Set MAC (if needs): - # ip link set lowpan0 address de:ad:be:ef:ca:fe:ba:be -4. Bring up 'lowpan0' interface +3. Bring up 'lowpan0' interface |