mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-15 01:17:39 +00:00
078078cfa9
Simon Glass's proposal to fix this on Seaboard was NAK'd, so I removed his NS16550 references and added a small delay before SPI/UART muxing. Tested on my Seaboard with large SPI reads/writes and saw no corruption (crc's matched) and no spurious comm chars. Signed-off-by: Tom Warren <twarren@nvidia.com> Acked-by: Simon Glass <sjg@chromium.org> Tested-by: Jimmy Zhang <jimmzhang@nvidia.com>
46 lines
1.4 KiB
C
46 lines
1.4 KiB
C
/*
|
|
* Copyright (c) 2011 The Chromium OS Authors.
|
|
* See file CREDITS for list of people who contributed to this
|
|
* project.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License as
|
|
* published by the Free Software Foundation; either version 2 of
|
|
* the License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
|
|
* MA 02111-1307 USA
|
|
*/
|
|
|
|
#ifndef _UART_SPI_SWITCH_H
|
|
#define _UART_SPI_SWITCH_H
|
|
|
|
#if defined(CONFIG_SPI_UART_SWITCH)
|
|
/*
|
|
* Signal that we are about to use the UART. This unfortunate hack is
|
|
* required by Seaboard, which cannot use its console and SPI at the same
|
|
* time! If the board file provides this, the board config will declare it.
|
|
* Let this be a lesson for others.
|
|
*/
|
|
void pinmux_select_uart(void);
|
|
|
|
/*
|
|
* Signal that we are about the use the SPI bus.
|
|
*/
|
|
void pinmux_select_spi(void);
|
|
|
|
#else /* not CONFIG_SPI_UART_SWITCH */
|
|
|
|
static inline void pinmux_select_uart(void) {}
|
|
static inline void pinmux_select_spi(void) {}
|
|
|
|
#endif
|
|
|
|
#endif
|