ST Microelectronics Nomadik SRC System Reset and Control
This binding uses the common clock binding:
Documentation/devicetree/bindings/clock/clock-bindings.txt
The Nomadik SRC controller is responsible of controlling chrystals,
PLLs and clock gates.
Required properties for the SRC node:
- compatible: must be “stericsson,nomadik-src”
- reg: must contain the SRC register base and size
Optional properties for the SRC node:
- disable-sxtalo: if present this will disable the SXTALO
i.e. the driver output for the slow 32kHz chrystal, if the
board has its own circuitry for providing this oscillator - disable-mxtal: if present this will disable the MXTALO,
i.e. the driver output for the main (~19.2 MHz) chrystal,
if the board has its own circuitry for providing this
oscillator
PLL nodes: these nodes represent the two PLLs on the system,
which should both have the main chrystal, represented as a
fixed frequency clock, as parent.
Required properties for the two PLL nodes:
- compatible: must be “st,nomadik-pll-clock”
- clock-cells: must be 0
- clock-id: must be 1 or 2 for PLL1 and PLL2 respectively
- clocks: this clock will have main chrystal as parent
HCLK nodes: these represent the clock gates on individual
lines from the HCLK clock tree and the gate for individual
lines from the PCLK clock tree.
Requires properties for the HCLK nodes:
compatible: must be “st,nomadik-hclk-clock”
clock-cells: must be 0
clock-id: must be the clock ID from 0 to 63 according to
this table:0: HCLKDMA0
1: HCLKSMC
2: HCLKSDRAM
3: HCLKDMA1
4: HCLKCLCD
5: PCLKIRDA
6: PCLKSSP
7: PCLKUART0
8: PCLKSDI
9: PCLKI2C0
10: PCLKI2C1
11: PCLKUART1
12: PCLMSP0
13: HCLKUSB
14: HCLKDIF
15: HCLKSAA
16: HCLKSVA
17: PCLKHSI
18: PCLKXTI
19: PCLKUART2
20: PCLKMSP1
21: PCLKMSP2
22: PCLKOWM
23: HCLKHPI
24: PCLKSKE
25: PCLKHSEM
26: HCLK3D
27: HCLKHASH
28: HCLKCRYP
29: PCLKMSHC
30: HCLKUSBM
31: HCLKRNG
(32, 33, 34, 35 RESERVED)
36: CLDCLK
37: IRDACLK
38: SSPICLK
39: UART0CLK
40: SDICLK
41: I2C0CLK
42: I2C1CLK
43: UART1CLK
44: MSPCLK0
45: USBCLK
46: DIFCLK
47: IPI2CCLK
48: IPBMCCLK
49: HSICLKRX
50: HSICLKTX
51: UART2CLK
52: MSPCLK1
53: MSPCLK2
54: OWMCLK
(55 RESERVED)
56: SKECLK
(57 RESERVED)
58: 3DCLK
59: PCLKMSP3
60: MSPCLK3
61: MSHCCLK
62: USBMCLK
63: RNGCCLK
