blob: 8fc4da271e85c9a1eeab29195e1a790715c7fe46 [file] [log] [blame]
Angelo Dureghello196afe62019-03-13 21:46:53 +01001// SPDX-License-Identifier: GPL-2.0+
2/*
3 * (C) Copyright 2019
4 * Angelo Dureghello <angleo@sysam.it>
5 *
6 * CPU specific dspi routines
7 */
8
9#include <common.h>
10#include <asm/immap.h>
11#include <asm/io.h>
12
13#ifdef CONFIG_CF_DSPI
14void dspi_chip_select(int cs)
15{
16 struct gpio *gpio = (struct gpio *)MMAP_GPIO;
17
18 switch (cs) {
19 case 0:
20 clrbits_8(&gpio->par_dspi, GPIO_PAR_DSPI_PCS0_UNMASK);
21 setbits_8(&gpio->par_dspi, GPIO_PAR_DSPI_PCS0_PCS0);
22 break;
23 case 2:
24 clrbits_8(&gpio->par_timer, ~GPIO_PAR_TIMER_T2IN_UNMASK);
25 setbits_8(&gpio->par_timer, GPIO_PAR_TIMER_T2IN_DSPIPCS2);
26 break;
27 }
28}
29
30void dspi_chip_unselect(int cs)
31{
32 struct gpio *gpio = (struct gpio *)MMAP_GPIO;
33
34 switch (cs) {
35 case 0:
36 clrbits_8(&gpio->par_dspi, GPIO_PAR_DSPI_PCS0_PCS0);
37 break;
38 case 2:
39 clrbits_8(&gpio->par_timer, ~GPIO_PAR_TIMER_T2IN_UNMASK);
40 break;
41 }
42}
43#endif /* CONFIG_CF_DSPI */