diff options
Diffstat (limited to 'arch/m68k/cpu/mcf5227x/dspi.c')
| -rw-r--r-- | arch/m68k/cpu/mcf5227x/dspi.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/arch/m68k/cpu/mcf5227x/dspi.c b/arch/m68k/cpu/mcf5227x/dspi.c new file mode 100644 index 0000000000..8fc4da271e --- /dev/null +++ b/arch/m68k/cpu/mcf5227x/dspi.c @@ -0,0 +1,43 @@ +// 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 */ |