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authorEric Anholt <eric@anholt.net>2016-03-13 18:16:54 -0700
committerTom Rini <trini@konsulko.com>2016-03-22 12:16:12 -0400
commitcd0fa5bff8052b19bde6967c2734f323c9848568 (patch)
tree0f2cdabdb2f04b4e28de7b0d5c5c391887a9442d /include/dm
parent9a6598daaf0d0681bd423196364b2e4e3959ebbc (diff)
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serial: pl01x: Add support for devices with the rate pre-configured.
For Raspberry Pi, we had the input clock rate to the pl011 fixed in the rpi.c file, but it may be changed by firmware due to user changes to config.txt. Since the firmware always sets up the uart (default 115200 output unless the user changes it), we can just skip our own uart init to simplify the boot process and more reliably get serial output. Signed-off-by: Eric Anholt <eric@anholt.net> Reviewed-by: Tom Rini <trini@konsulko.com> Tested-by: Stephen Warren <swarren@wwwdotorg.org>
Diffstat (limited to 'include/dm')
-rw-r--r--include/dm/platform_data/serial_pl01x.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/dm/platform_data/serial_pl01x.h b/include/dm/platform_data/serial_pl01x.h
index 5e068f3..ccfa808 100644
--- a/include/dm/platform_data/serial_pl01x.h
+++ b/include/dm/platform_data/serial_pl01x.h
@@ -17,11 +17,14 @@ enum pl01x_type {
* @base: Register base address
* @type: Port type
* @clock: Input clock rate, used for calculating the baud rate divisor
+ * @skip_init: Don't attempt to change port configuration (also means @clock
+ * is ignored)
*/
struct pl01x_serial_platdata {
unsigned long base;
enum pl01x_type type;
unsigned int clock;
+ bool skip_init;
};
#endif