1 * Qualcomm QCA7000
2
3 The QCA7000 is a serial-to-powerline bridge wi
4 be configured either as SPI or UART slave. Thi
5 the QCA7000 firmware.
6
7 (a) Ethernet over SPI
8
9 In order to use the QCA7000 as SPI device it m
10 SPI master in the device tree.
11
12 Required properties:
13 - compatible : Should be "qca,qca7000"
14 - reg : Should specify the SPI c
15 - interrupts : The first cell should sp
16 interrupt and the second
17 type as rising edge
18 - spi-cpha : Must be set
19 - spi-cpol : Must be set
20
21 Optional properties:
22 - spi-max-frequency : Maximum frequency of the
23 Numbers smaller than 100
24 are invalid. Missing the
25 frequency to 8000000 Her
26 - qca,legacy-mode : Set the SPI data transfe
27 In this mode the SPI mas
28 between each data word.
29 necessary, which is fast
30 the QCA7000 is setup via
31 property is missing the
32
33 The MAC address will be determined using the o
34 defined in ethernet.txt.
35
36 SPI Example:
37
38 /* Freescale i.MX28 SPI master*/
39 ssp2: spi@80014000 {
40 #address-cells = <1>;
41 #size-cells = <0>;
42 compatible = "fsl,imx28-spi";
43 pinctrl-names = "default";
44 pinctrl-0 = <&spi2_pins_a>;
45
46 qca7000: ethernet@0 {
47 compatible = "qca,qca7000";
48 reg = <0x0>;
49 interrupt-parent = <&gpio3>;
50 interrupts = <25 0x1>;
51 spi-cpha;
52 spi-cpol;
53 spi-max-frequency = <8000000>;
54 local-mac-address = [ A0 B0 C0
55 };
56 };
57
58 (b) Ethernet over UART
59
60 In order to use the QCA7000 as UART slave it m
61 UART master in the device tree. It is possible
62 settings of the QCA7000 firmware, but it's not
63 runtime.
64
65 Required properties:
66 - compatible : Should be "qca,qca7000"
67
68 Optional properties:
69 - local-mac-address : see ./ethernet.txt
70 - current-speed : current baud rate of QCA
71 if absent, see also ../s
72
73 UART Example:
74
75 /* Freescale i.MX28 UART */
76 auart0: serial@8006a000 {
77 compatible = "fsl,imx28-auart", "fsl,i
78 reg = <0x8006a000 0x2000>;
79 pinctrl-names = "default";
80 pinctrl-0 = <&auart0_2pins_a>;
81
82 qca7000: ethernet {
83 compatible = "qca,qca7000";
84 local-mac-address = [ A0 B0 C0
85 current-speed = <38400>;
86 };
87 };
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