From 8a15c2d10b0b784f0cfba1240f06a4d933b975fa Mon Sep 17 00:00:00 2001 From: Peter Tyser <ptyser@xes-inc.com> Date: Mon, 12 Apr 2010 22:28:15 -0500 Subject: avr32: Move cpu/at32ap/* to arch/avr32/cpu/* Signed-off-by: Peter Tyser <ptyser@xes-inc.com> --- arch/avr32/cpu/portmux-pio.c | 92 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 92 insertions(+) create mode 100644 arch/avr32/cpu/portmux-pio.c (limited to 'arch/avr32/cpu/portmux-pio.c') diff --git a/arch/avr32/cpu/portmux-pio.c b/arch/avr32/cpu/portmux-pio.c new file mode 100644 index 0000000..a29f94e --- /dev/null +++ b/arch/avr32/cpu/portmux-pio.c @@ -0,0 +1,92 @@ +/* + * Copyright (C) 2006, 2008 Atmel Corporation + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ +#include <common.h> + +#include <asm/io.h> +#include <asm/arch/memory-map.h> +#include <asm/arch/gpio.h> + +void portmux_select_peripheral(void *port, unsigned long pin_mask, + enum portmux_function func, unsigned long flags) +{ + if (flags & PORTMUX_PULL_UP) + pio_writel(port, PUER, pin_mask); + else + pio_writel(port, PUDR, pin_mask); + + switch (func) { + case PORTMUX_FUNC_A: + pio_writel(port, ASR, pin_mask); + break; + case PORTMUX_FUNC_B: + pio_writel(port, BSR, pin_mask); + break; + } + + pio_writel(port, PDR, pin_mask); +} + +void portmux_select_gpio(void *port, unsigned long pin_mask, + unsigned long flags) +{ + if (flags & PORTMUX_PULL_UP) + pio_writel(port, PUER, pin_mask); + else + pio_writel(port, PUDR, pin_mask); + + if (flags & PORTMUX_OPEN_DRAIN) + pio_writel(port, MDER, pin_mask); + else + pio_writel(port, MDDR, pin_mask); + + if (flags & PORTMUX_DIR_OUTPUT) { + if (flags & PORTMUX_INIT_HIGH) + pio_writel(port, SODR, pin_mask); + else + pio_writel(port, CODR, pin_mask); + pio_writel(port, OER, pin_mask); + } else { + pio_writel(port, ODR, pin_mask); + } + + pio_writel(port, PER, pin_mask); +} + +void pio_set_output_value(unsigned int pin, int value) +{ + void *port = pio_pin_to_port(pin); + + if (!port) + panic("Invalid GPIO pin %u\n", pin); + + __pio_set_output_value(port, pin & 0x1f, value); +} + +int pio_get_input_value(unsigned int pin) +{ + void *port = pio_pin_to_port(pin); + + if (!port) + panic("Invalid GPIO pin %u\n", pin); + + return __pio_get_input_value(port, pin & 0x1f); +} -- cgit v1.1