2 * Copyright (C) 2006 Atmel Corporation
4 * See file CREDITS for list of people who contributed to this
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.
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.
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,
25 #include <asm/arch/gpio.h>
26 #include <asm/arch/memory-map.h>
30 void gpio_select_periph_A(unsigned int pin
, int use_pullup
)
32 void *base
= gpio_pin_to_addr(pin
);
33 uint32_t mask
= 1 << (pin
& 0x1f);
36 panic("Invalid GPIO pin %u\n", pin
);
38 pio2_writel(base
, ASR
, mask
);
39 pio2_writel(base
, PDR
, mask
);
41 pio2_writel(base
, PUER
, mask
);
43 pio2_writel(base
, PUDR
, mask
);
46 void gpio_select_periph_B(unsigned int pin
, int use_pullup
)
48 void *base
= gpio_pin_to_addr(pin
);
49 uint32_t mask
= 1 << (pin
& 0x1f);
52 panic("Invalid GPIO pin %u\n", pin
);
54 pio2_writel(base
, BSR
, mask
);
55 pio2_writel(base
, PDR
, mask
);
57 pio2_writel(base
, PUER
, mask
);
59 pio2_writel(base
, PUDR
, mask
);