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Wolfgang Denk72a087e2006-10-24 14:27:35 +02001/*
2 * Copyright (C) 2006 Atmel Corporation
3 *
4 * See file CREDITS for list of people who contributed to this
5 * project.
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License as
9 * published by the Free Software Foundation; either version 2 of
10 * the License, or (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
20 * MA 02111-1307 USA
21 */
22#include <common.h>
23
Wolfgang Denk72a087e2006-10-24 14:27:35 +020024#include <asm/io.h>
Haavard Skinnemoendf548d32006-11-19 18:06:53 +010025#include <asm/arch/gpio.h>
26#include <asm/arch/memory-map.h>
Wolfgang Denk72a087e2006-10-24 14:27:35 +020027
28#include "pio2.h"
29
Haavard Skinnemoendf548d32006-11-19 18:06:53 +010030void gpio_select_periph_A(unsigned int pin, int use_pullup)
Wolfgang Denk72a087e2006-10-24 14:27:35 +020031{
Haavard Skinnemoendf548d32006-11-19 18:06:53 +010032 void *base = gpio_pin_to_addr(pin);
33 uint32_t mask = 1 << (pin & 0x1f);
Wolfgang Denk72a087e2006-10-24 14:27:35 +020034
Haavard Skinnemoendf548d32006-11-19 18:06:53 +010035 if (!base)
36 panic("Invalid GPIO pin %u\n", pin);
Wolfgang Denk72a087e2006-10-24 14:27:35 +020037
Haavard Skinnemoendf548d32006-11-19 18:06:53 +010038 pio2_writel(base, ASR, mask);
39 pio2_writel(base, PDR, mask);
40 if (use_pullup)
41 pio2_writel(base, PUER, mask);
42 else
43 pio2_writel(base, PUDR, mask);
Wolfgang Denk72a087e2006-10-24 14:27:35 +020044}
45
Haavard Skinnemoendf548d32006-11-19 18:06:53 +010046void gpio_select_periph_B(unsigned int pin, int use_pullup)
Wolfgang Denk72a087e2006-10-24 14:27:35 +020047{
Haavard Skinnemoendf548d32006-11-19 18:06:53 +010048 void *base = gpio_pin_to_addr(pin);
49 uint32_t mask = 1 << (pin & 0x1f);
Wolfgang Denk72a087e2006-10-24 14:27:35 +020050
Haavard Skinnemoendf548d32006-11-19 18:06:53 +010051 if (!base)
52 panic("Invalid GPIO pin %u\n", pin);
Wolfgang Denk72a087e2006-10-24 14:27:35 +020053
Haavard Skinnemoendf548d32006-11-19 18:06:53 +010054 pio2_writel(base, BSR, mask);
55 pio2_writel(base, PDR, mask);
56 if (use_pullup)
57 pio2_writel(base, PUER, mask);
58 else
59 pio2_writel(base, PUDR, mask);
Wolfgang Denk72a087e2006-10-24 14:27:35 +020060}