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| author | Anton Vorontsov <avorontsov@ru.mvista.com> | 2008-05-19 19:47:05 +0200 |
|---|---|---|
| committer | Kumar Gala <galak@kernel.crashing.org> | 2008-06-10 18:11:10 +0200 |
| commit | 32def337aafee0bc65eb58d5b1b3617525eb7fb7 (patch) | |
| tree | 22173ef1c86e1dd6de2eadee2600dbad1e029249 /Documentation/powerpc/booting-without-of.txt | |
| parent | powerpc/QE: prepare QE PIO code for GPIO LIB support (diff) | |
| download | linux-32def337aafee0bc65eb58d5b1b3617525eb7fb7.tar.xz linux-32def337aafee0bc65eb58d5b1b3617525eb7fb7.zip | |
powerpc/QE: implement support for the GPIO LIB API
This is needed to access QE GPIOs via Linux GPIO API.
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Acked-By: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'Documentation/powerpc/booting-without-of.txt')
| -rw-r--r-- | Documentation/powerpc/booting-without-of.txt | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/Documentation/powerpc/booting-without-of.txt b/Documentation/powerpc/booting-without-of.txt index 8675ebca2cfd..b68684d39f96 100644 --- a/Documentation/powerpc/booting-without-of.txt +++ b/Documentation/powerpc/booting-without-of.txt @@ -1736,6 +1736,33 @@ platforms are moved over to use the flattened-device-tree model. ...... }; + Note that "par_io" nodes are obsolete, and should not be used for + the new device trees. Instead, each Par I/O bank should be represented + via its own gpio-controller node: + + Required properties: + - #gpio-cells : should be "2". + - compatible : should be "fsl,<chip>-qe-pario-bank", + "fsl,mpc8323-qe-pario-bank". + - reg : offset to the register set and its length. + - gpio-controller : node to identify gpio controllers. + + Example: + qe_pio_a: gpio-controller@1400 { + #gpio-cells = <2>; + compatible = "fsl,mpc8360-qe-pario-bank", + "fsl,mpc8323-qe-pario-bank"; + reg = <0x1400 0x18>; + gpio-controller; + }; + + qe_pio_e: gpio-controller@1460 { + #gpio-cells = <2>; + compatible = "fsl,mpc8360-qe-pario-bank", + "fsl,mpc8323-qe-pario-bank"; + reg = <0x1460 0x18>; + gpio-controller; + }; vi) Pin configuration nodes |