57 lines
1.9 KiB
C
57 lines
1.9 KiB
C
/*
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* (C) Copyright 2007
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* Stefan Roese, DENX Software Engineering, sr@denx.de.
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*
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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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/* 4xx PPC's have 2 GPIO controllers */
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#if defined(CONFIG_405EZ) || \
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defined(CONFIG_440EP) || defined(CONFIG_440GR) || \
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defined(CONFIG_440EPX) || defined(CONFIG_440GRX)
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#define GPIO_GROUP_MAX 2
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#else
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#define GPIO_GROUP_MAX 1
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#endif
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#define GPIO_MAX 32
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#define GPIO_ALT1_SEL 0x40000000
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#define GPIO_ALT2_SEL 0x80000000
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#define GPIO_ALT3_SEL 0xc0000000
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#define GPIO_IN_SEL 0x40000000
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#define GPIO_MASK 0xc0000000
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#define GPIO_VAL(gpio) (0x80000000 >> (gpio))
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#ifndef __ASSEMBLY__
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typedef enum gpio_select { GPIO_SEL, GPIO_ALT1, GPIO_ALT2, GPIO_ALT3 } gpio_select_t;
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typedef enum gpio_driver { GPIO_DIS, GPIO_IN, GPIO_OUT, GPIO_BI } gpio_driver_t;
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typedef enum gpio_out { GPIO_OUT_0, GPIO_OUT_1, GPIO_OUT_NO_CHG } gpio_out_t;
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typedef struct {
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unsigned long add; /* gpio core base address */
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gpio_driver_t in_out; /* Driver Setting */
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gpio_select_t alt_nb; /* Selected Alternate */
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} gpio_param_s;
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#endif
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void gpio_config(int pin, int in_out, int gpio_alt, int out_val);
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void gpio_write_bit(int pin, int val);
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void gpio_set_chip_configuration(void);
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