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author | Timur Tabi <timur@freescale.com> | 2007-12-03 22:17:58 +0100 |
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committer | Kumar Gala <galak@kernel.crashing.org> | 2007-12-14 05:59:27 +0100 |
commit | 174b0da23199c4ae1ed06263dafd9a2e85e97d34 (patch) | |
tree | ef7e30bbc2b22269e46a08ab17823e5d43e6974f /Documentation/powerpc | |
parent | [POWERPC] 83xx: mpc8313erdb: Fix whitespace. (diff) | |
download | linux-174b0da23199c4ae1ed06263dafd9a2e85e97d34.tar.xz linux-174b0da23199c4ae1ed06263dafd9a2e85e97d34.zip |
[POWERPC] qe: add function qe_clock_source()
Add function qe_clock_source() which takes a string containing the name of a
QE clock source (as is typically found in device trees) and returns the
matching enum qe_clock value.
Update booting-without-of.txt to indicate that the UCC properties rx-clock
and tx-clock are deprecated and replaced with rx-clock-name and tx-clock-name,
which use strings instead of numbers to indicate QE clock sources.
Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'Documentation/powerpc')
-rw-r--r-- | Documentation/powerpc/booting-without-of.txt | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/Documentation/powerpc/booting-without-of.txt b/Documentation/powerpc/booting-without-of.txt index c3fc9d955030..ee0209a7de3e 100644 --- a/Documentation/powerpc/booting-without-of.txt +++ b/Documentation/powerpc/booting-without-of.txt @@ -1629,6 +1629,19 @@ platforms are moved over to use the flattened-device-tree model. - interrupt-parent : the phandle for the interrupt controller that services interrupts for this device. - pio-handle : The phandle for the Parallel I/O port configuration. + - rx-clock-name: the UCC receive clock source + "none": clock source is disabled + "brg1" through "brg16": clock source is BRG1-BRG16, respectively + "clk1" through "clk24": clock source is CLK1-CLK24, respectively + - tx-clock-name: the UCC transmit clock source + "none": clock source is disabled + "brg1" through "brg16": clock source is BRG1-BRG16, respectively + "clk1" through "clk24": clock source is CLK1-CLK24, respectively + The following two properties are deprecated. rx-clock has been replaced + with rx-clock-name, and tx-clock has been replaced with tx-clock-name. + Drivers that currently use the deprecated properties should continue to + do so, in order to support older device trees, but they should be updated + to check for the new properties first. - rx-clock : represents the UCC receive clock source. 0x00 : clock source is disabled; 0x1~0x10 : clock source is BRG1~BRG16 respectively; |