mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-11 22:03:15 +00:00
88 lines
1.9 KiB
C
88 lines
1.9 KiB
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;
|
|
|
|
#ifdef CONFIG_MCF5445x
|
|
switch (cs) {
|
|
case 0:
|
|
clrbits_8(&gpio->par_dspi, GPIO_PAR_DSPI_PCS0_PCS0);
|
|
setbits_8(&gpio->par_dspi, GPIO_PAR_DSPI_PCS0_PCS0);
|
|
break;
|
|
case 1:
|
|
clrbits_8(&gpio->par_dspi, GPIO_PAR_DSPI_PCS1_PCS1);
|
|
setbits_8(&gpio->par_dspi, GPIO_PAR_DSPI_PCS1_PCS1);
|
|
break;
|
|
case 2:
|
|
clrbits_8(&gpio->par_dspi, GPIO_PAR_DSPI_PCS2_PCS2);
|
|
setbits_8(&gpio->par_dspi, GPIO_PAR_DSPI_PCS2_PCS2);
|
|
break;
|
|
case 3:
|
|
clrbits_8(&gpio->par_dma, ~GPIO_PAR_DMA_DACK0_UNMASK);
|
|
setbits_8(&gpio->par_dma, GPIO_PAR_DMA_DACK0_PCS3);
|
|
break;
|
|
case 5:
|
|
clrbits_8(&gpio->par_dspi, GPIO_PAR_DSPI_PCS5_PCS5);
|
|
setbits_8(&gpio->par_dspi, GPIO_PAR_DSPI_PCS5_PCS5);
|
|
break;
|
|
}
|
|
#endif
|
|
#ifdef CONFIG_MCF5441x
|
|
switch (cs) {
|
|
case 0:
|
|
clrbits_8(&gpio->par_dspi0,
|
|
~GPIO_PAR_DSPI0_PCS0_MASK);
|
|
setbits_8(&gpio->par_dspi0,
|
|
GPIO_PAR_DSPI0_PCS0_DSPI0PCS0);
|
|
break;
|
|
case 1:
|
|
clrbits_8(&gpio->par_dspiow,
|
|
GPIO_PAR_DSPIOW_DSPI0PSC1);
|
|
setbits_8(&gpio->par_dspiow,
|
|
GPIO_PAR_DSPIOW_DSPI0PSC1);
|
|
break;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
void dspi_chip_unselect(int cs)
|
|
{
|
|
struct gpio *gpio = (struct gpio *)MMAP_GPIO;
|
|
|
|
#ifdef CONFIG_MCF5445x
|
|
switch (cs) {
|
|
case 0:
|
|
clrbits_8(&gpio->par_dspi, GPIO_PAR_DSPI_PCS0_PCS0);
|
|
break;
|
|
case 1:
|
|
clrbits_8(&gpio->par_dspi, GPIO_PAR_DSPI_PCS1_PCS1);
|
|
break;
|
|
case 2:
|
|
clrbits_8(&gpio->par_dspi, GPIO_PAR_DSPI_PCS2_PCS2);
|
|
break;
|
|
case 3:
|
|
clrbits_8(&gpio->par_dma, ~GPIO_PAR_DMA_DACK0_UNMASK);
|
|
break;
|
|
case 5:
|
|
clrbits_8(&gpio->par_dspi, GPIO_PAR_DSPI_PCS5_PCS5);
|
|
break;
|
|
}
|
|
#endif
|
|
#ifdef CONFIG_MCF5441x
|
|
if (cs == 1)
|
|
clrbits_8(&gpio->par_dspiow, GPIO_PAR_DSPIOW_DSPI0PSC1);
|
|
#endif
|
|
}
|
|
#endif /* CONFIG_CF_DSPI */
|