mirror of
https://github.com/AsahiLinux/u-boot
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59 lines
1.8 KiB
C
59 lines
1.8 KiB
C
/*
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* Copyright (c) 2011, Google Inc. All rights reserved.
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#ifndef _TEGRA2_GPIO_H_
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#define _TEGRA2_GPIO_H_
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/*
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* The Tegra 2x GPIO controller has 222 GPIOs arranged in 8 banks of 4 ports,
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* each with 8 GPIOs.
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*/
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#define TEGRA_GPIO_PORTS 4 /* The number of ports per bank */
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#define TEGRA_GPIO_BANKS 8 /* The number of banks */
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/* GPIO Controller registers for a single bank */
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struct gpio_ctlr_bank {
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uint gpio_config[TEGRA_GPIO_PORTS];
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uint gpio_dir_out[TEGRA_GPIO_PORTS];
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uint gpio_out[TEGRA_GPIO_PORTS];
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uint gpio_in[TEGRA_GPIO_PORTS];
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uint gpio_int_status[TEGRA_GPIO_PORTS];
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uint gpio_int_enable[TEGRA_GPIO_PORTS];
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uint gpio_int_level[TEGRA_GPIO_PORTS];
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uint gpio_int_clear[TEGRA_GPIO_PORTS];
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};
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struct gpio_ctlr {
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struct gpio_ctlr_bank gpio_bank[TEGRA_GPIO_BANKS];
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};
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#define GPIO_BANK(x) ((x) >> 5)
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#define GPIO_PORT(x) (((x) >> 3) & 0x3)
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#define GPIO_BIT(x) ((x) & 0x7)
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/*
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* GPIO_PI3 = Port I = 8, bit = 3.
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* Seaboard: used for UART/SPI selection
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* Harmony: not used
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*/
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#define GPIO_PI3 ((8 << 3) | 3)
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#endif /* TEGRA2_GPIO_H_ */
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