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