mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-28 05:53:54 +00:00
44 lines
876 B
C
44 lines
876 B
C
|
// SPDX-License-Identifier: GPL-2.0+
|
||
|
|
/*
|
||
|
|
* (C) Copyright 2019
|
||
|
|
* Angelo Dureghello <angleo@sysam.it>
|
||
|
|
*
|
||
|
|
* CPU specific dspi routines
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <common.h>
|
||
|
|
#include <asm/immap.h>
|
||
|
|
#include <asm/io.h>
|
||
|
|
|
||
|
|
#ifdef CONFIG_CF_DSPI
|
||
|
|
void dspi_chip_select(int cs)
|
||
|
|
{
|
||
|
|
struct gpio *gpio = (struct gpio *)MMAP_GPIO;
|
||
|
|
|
||
|
|
switch (cs) {
|
||
|
|
case 0:
|
||
|
|
clrbits_8(&gpio->par_dspi, GPIO_PAR_DSPI_PCS0_UNMASK);
|
||
|
|
setbits_8(&gpio->par_dspi, GPIO_PAR_DSPI_PCS0_PCS0);
|
||
|
|
break;
|
||
|
|
case 2:
|
||
|
|
clrbits_8(&gpio->par_timer, ~GPIO_PAR_TIMER_T2IN_UNMASK);
|
||
|
|
setbits_8(&gpio->par_timer, GPIO_PAR_TIMER_T2IN_DSPIPCS2);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void dspi_chip_unselect(int cs)
|
||
|
|
{
|
||
|
|
struct gpio *gpio = (struct gpio *)MMAP_GPIO;
|
||
|
|
|
||
|
|
switch (cs) {
|
||
|
|
case 0:
|
||
|
|
clrbits_8(&gpio->par_dspi, GPIO_PAR_DSPI_PCS0_PCS0);
|
||
|
|
break;
|
||
|
|
case 2:
|
||
|
|
clrbits_8(&gpio->par_timer, ~GPIO_PAR_TIMER_T2IN_UNMASK);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
#endif /* CONFIG_CF_DSPI */
|