aboutsummaryrefslogtreecommitdiffstats
path: root/Documentation
diff options
context:
space:
mode:
authorAnton Vorontsov <avorontsov@ru.mvista.com>2008-05-19 13:47:05 -0400
committerKumar Gala <galak@kernel.crashing.org>2008-06-10 12:11:10 -0400
commit32def337aafee0bc65eb58d5b1b3617525eb7fb7 (patch)
tree22173ef1c86e1dd6de2eadee2600dbad1e029249 /Documentation
parent9572653ee01a2134ae3a1d7aa29ce9d026a6afe9 (diff)
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')
-rw-r--r--Documentation/powerpc/booting-without-of.txt27
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.
1736 ...... 1736 ......
1737 }; 1737 };
1738 1738
1739 Note that "par_io" nodes are obsolete, and should not be used for
1740 the new device trees. Instead, each Par I/O bank should be represented
1741 via its own gpio-controller node:
1742
1743 Required properties:
1744 - #gpio-cells : should be "2".
1745 - compatible : should be "fsl,<chip>-qe-pario-bank",
1746 "fsl,mpc8323-qe-pario-bank".
1747 - reg : offset to the register set and its length.
1748 - gpio-controller : node to identify gpio controllers.
1749
1750 Example:
1751 qe_pio_a: gpio-controller@1400 {
1752 #gpio-cells = <2>;
1753 compatible = "fsl,mpc8360-qe-pario-bank",
1754 "fsl,mpc8323-qe-pario-bank";
1755 reg = <0x1400 0x18>;
1756 gpio-controller;
1757 };
1758
1759 qe_pio_e: gpio-controller@1460 {
1760 #gpio-cells = <2>;
1761 compatible = "fsl,mpc8360-qe-pario-bank",
1762 "fsl,mpc8323-qe-pario-bank";
1763 reg = <0x1460 0x18>;
1764 gpio-controller;
1765 };
1739 1766
1740 vi) Pin configuration nodes 1767 vi) Pin configuration nodes
1741 1768