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author | Arnd Bergmann <arnd@arndb.de> | 2013-06-20 15:40:16 +0200 |
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committer | Arnd Bergmann <arnd@arndb.de> | 2013-06-20 16:13:10 +0200 |
commit | 15f4b11b0fa91cf81738215483b2bb2c0b911285 (patch) | |
tree | c2f30b1b5941f35b0884f02d485a0d04d984f3a0 /Documentation | |
parent | dc61cd9ecb918f593972962b97cf6079ab9d1daf (diff) | |
parent | c641d4dfef6d462c6d66a6fb57700086cd2f0106 (diff) | |
download | linux-15f4b11b0fa91cf81738215483b2bb2c0b911285.tar.gz linux-15f4b11b0fa91cf81738215483b2bb2c0b911285.tar.bz2 linux-15f4b11b0fa91cf81738215483b2bb2c0b911285.zip |
Merge tag 'nomadik-dt-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-nomadik into next/dt
From Linus Walleij:
Nomadik DT and clock work:
- Lee Jones' pinctrl compat ontology patches
- A real clock driver for the Nomadik, 100% DT-based
- Device tree changes for the Nomadik clocks
* tag 'nomadik-dt-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-nomadik:
ARM: nomadik: add the new clocks to the device tree
clk: nomadik: implement the Nomadik clocks properly
pinctrl/nomadik: Standardise Pinctrl compat string for Nomadik based platforms
ARM: nomadik: Standardise Nomadik STN8815 based Pinctrl compat string in the DTS
Conflicts:
arch/arm/boot/dts/ste-nomadik-s8815.dts
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'Documentation')
-rw-r--r-- | Documentation/devicetree/bindings/clock/st,nomadik.txt | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/clock/st,nomadik.txt b/Documentation/devicetree/bindings/clock/st,nomadik.txt new file mode 100644 index 000000000000..7fc09773de46 --- /dev/null +++ b/Documentation/devicetree/bindings/clock/st,nomadik.txt @@ -0,0 +1,104 @@ +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 + osciallator + + +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 |