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