mirror of
https://github.com/AsahiLinux/u-boot
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89 lines
1.9 KiB
C
89 lines
1.9 KiB
C
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// 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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#ifdef CONFIG_MCF5445x
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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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setbits_8(&gpio->par_dspi, GPIO_PAR_DSPI_PCS0_PCS0);
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break;
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case 1:
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clrbits_8(&gpio->par_dspi, GPIO_PAR_DSPI_PCS1_PCS1);
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setbits_8(&gpio->par_dspi, GPIO_PAR_DSPI_PCS1_PCS1);
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break;
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case 2:
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clrbits_8(&gpio->par_dspi, GPIO_PAR_DSPI_PCS2_PCS2);
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setbits_8(&gpio->par_dspi, GPIO_PAR_DSPI_PCS2_PCS2);
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break;
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case 3:
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clrbits_8(&gpio->par_dma, ~GPIO_PAR_DMA_DACK0_UNMASK);
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setbits_8(&gpio->par_dma, GPIO_PAR_DMA_DACK0_PCS3);
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break;
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case 5:
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clrbits_8(&gpio->par_dspi, GPIO_PAR_DSPI_PCS5_PCS5);
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setbits_8(&gpio->par_dspi, GPIO_PAR_DSPI_PCS5_PCS5);
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break;
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}
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#endif
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#ifdef CONFIG_MCF5441x
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switch (cs) {
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case 0:
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clrbits_8(&gpio->par_dspi0,
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~GPIO_PAR_DSPI0_PCS0_MASK);
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setbits_8(&gpio->par_dspi0,
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GPIO_PAR_DSPI0_PCS0_DSPI0PCS0);
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break;
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case 1:
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clrbits_8(&gpio->par_dspiow,
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GPIO_PAR_DSPIOW_DSPI0PSC1);
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setbits_8(&gpio->par_dspiow,
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GPIO_PAR_DSPIOW_DSPI0PSC1);
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break;
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}
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#endif
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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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#ifdef CONFIG_MCF5445x
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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 1:
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clrbits_8(&gpio->par_dspi, GPIO_PAR_DSPI_PCS1_PCS1);
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break;
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case 2:
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clrbits_8(&gpio->par_dspi, GPIO_PAR_DSPI_PCS2_PCS2);
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break;
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case 3:
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clrbits_8(&gpio->par_dma, ~GPIO_PAR_DMA_DACK0_UNMASK);
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break;
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case 5:
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clrbits_8(&gpio->par_dspi, GPIO_PAR_DSPI_PCS5_PCS5);
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break;
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}
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#endif
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#ifdef CONFIG_MCF5441x
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if (cs == 1)
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clrbits_8(&gpio->par_dspiow, GPIO_PAR_DSPIOW_DSPI0PSC1);
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#endif
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}
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#endif /* CONFIG_CF_DSPI */
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