u-boot/include/dm/platform_data/serial_pl01x.h
Eric Anholt cd0fa5bff8 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>
2016-03-22 12:16:12 -04:00

30 lines
562 B
C

/*
* Copyright (c) 2014 Google, Inc
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef __serial_pl01x_h
#define __serial_pl01x_h
enum pl01x_type {
TYPE_PL010,
TYPE_PL011,
};
/*
*Information about a serial port
*
* @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