2 * Copyright (c) 2011 The Chromium OS Authors.
3 * See file CREDITS for list of people who contributed to this
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License as
8 * published by the Free Software Foundation; either version 2 of
9 * the License, or (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
22 /* Tegra2 pin multiplexing functions */
25 #include <asm/arch/tegra2.h>
26 #include <asm/arch/pinmux.h>
30 void pinmux_set_tristate(enum pmux_pin pin, int enable)
32 struct pmux_tri_ctlr *pmt = (struct pmux_tri_ctlr *)NV_PA_APB_MISC_BASE;
33 u32 *tri = &pmt->pmt_tri[TRISTATE_REG(pin)];
38 reg |= TRISTATE_MASK(pin);
40 reg &= ~TRISTATE_MASK(pin);
44 void pinmux_tristate_enable(enum pmux_pin pin)
46 pinmux_set_tristate(pin, 1);
49 void pinmux_tristate_disable(enum pmux_pin pin)
51 pinmux_set_tristate(pin, 0);