mirror of
https://github.com/AsahiLinux/u-boot
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9f15bc0c1c
This patch adds support for software I2C for GONI and Universal C210 reference targets. It adds support for access to GPIOs by number, not as it is present, by bank and offset. Signed-off-by: Lukasz Majewski <l.majewski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com> Cc: Heiko Schocher <hs@denx.de>
171 lines
4.7 KiB
C
171 lines
4.7 KiB
C
/*
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* (C) Copyright 2009 Samsung Electronics
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* Minkyu Kang <mk7.kang@samsung.com>
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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 __ASM_ARCH_GPIO_H
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#define __ASM_ARCH_GPIO_H
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#ifndef __ASSEMBLY__
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struct s5p_gpio_bank {
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unsigned int con;
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unsigned int dat;
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unsigned int pull;
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unsigned int drv;
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unsigned int pdn_con;
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unsigned int pdn_pull;
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unsigned char res1[8];
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};
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struct s5pc100_gpio {
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struct s5p_gpio_bank a0;
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struct s5p_gpio_bank a1;
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struct s5p_gpio_bank b;
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struct s5p_gpio_bank c;
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struct s5p_gpio_bank d;
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struct s5p_gpio_bank e0;
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struct s5p_gpio_bank e1;
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struct s5p_gpio_bank f0;
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struct s5p_gpio_bank f1;
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struct s5p_gpio_bank f2;
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struct s5p_gpio_bank f3;
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struct s5p_gpio_bank g0;
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struct s5p_gpio_bank g1;
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struct s5p_gpio_bank g2;
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struct s5p_gpio_bank g3;
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struct s5p_gpio_bank i;
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struct s5p_gpio_bank j0;
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struct s5p_gpio_bank j1;
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struct s5p_gpio_bank j2;
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struct s5p_gpio_bank j3;
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struct s5p_gpio_bank j4;
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struct s5p_gpio_bank k0;
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struct s5p_gpio_bank k1;
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struct s5p_gpio_bank k2;
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struct s5p_gpio_bank k3;
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struct s5p_gpio_bank l0;
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struct s5p_gpio_bank l1;
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struct s5p_gpio_bank l2;
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struct s5p_gpio_bank l3;
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struct s5p_gpio_bank l4;
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struct s5p_gpio_bank h0;
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struct s5p_gpio_bank h1;
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struct s5p_gpio_bank h2;
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struct s5p_gpio_bank h3;
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};
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struct s5pc110_gpio {
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struct s5p_gpio_bank a0;
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struct s5p_gpio_bank a1;
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struct s5p_gpio_bank b;
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struct s5p_gpio_bank c0;
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struct s5p_gpio_bank c1;
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struct s5p_gpio_bank d0;
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struct s5p_gpio_bank d1;
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struct s5p_gpio_bank e0;
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struct s5p_gpio_bank e1;
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struct s5p_gpio_bank f0;
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struct s5p_gpio_bank f1;
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struct s5p_gpio_bank f2;
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struct s5p_gpio_bank f3;
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struct s5p_gpio_bank g0;
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struct s5p_gpio_bank g1;
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struct s5p_gpio_bank g2;
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struct s5p_gpio_bank g3;
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struct s5p_gpio_bank i;
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struct s5p_gpio_bank j0;
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struct s5p_gpio_bank j1;
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struct s5p_gpio_bank j2;
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struct s5p_gpio_bank j3;
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struct s5p_gpio_bank j4;
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struct s5p_gpio_bank mp0_1;
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struct s5p_gpio_bank mp0_2;
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struct s5p_gpio_bank mp0_3;
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struct s5p_gpio_bank mp0_4;
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struct s5p_gpio_bank mp0_5;
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struct s5p_gpio_bank mp0_6;
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struct s5p_gpio_bank mp0_7;
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struct s5p_gpio_bank mp1_0;
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struct s5p_gpio_bank mp1_1;
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struct s5p_gpio_bank mp1_2;
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struct s5p_gpio_bank mp1_3;
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struct s5p_gpio_bank mp1_4;
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struct s5p_gpio_bank mp1_5;
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struct s5p_gpio_bank mp1_6;
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struct s5p_gpio_bank mp1_7;
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struct s5p_gpio_bank mp1_8;
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struct s5p_gpio_bank mp2_0;
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struct s5p_gpio_bank mp2_1;
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struct s5p_gpio_bank mp2_2;
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struct s5p_gpio_bank mp2_3;
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struct s5p_gpio_bank mp2_4;
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struct s5p_gpio_bank mp2_5;
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struct s5p_gpio_bank mp2_6;
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struct s5p_gpio_bank mp2_7;
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struct s5p_gpio_bank mp2_8;
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struct s5p_gpio_bank res1[48];
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struct s5p_gpio_bank h0;
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struct s5p_gpio_bank h1;
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struct s5p_gpio_bank h2;
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struct s5p_gpio_bank h3;
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};
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/* functions */
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void s5p_gpio_cfg_pin(struct s5p_gpio_bank *bank, int gpio, int cfg);
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void s5p_gpio_direction_output(struct s5p_gpio_bank *bank, int gpio, int en);
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void s5p_gpio_direction_input(struct s5p_gpio_bank *bank, int gpio);
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void s5p_gpio_set_value(struct s5p_gpio_bank *bank, int gpio, int en);
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unsigned int s5p_gpio_get_value(struct s5p_gpio_bank *bank, int gpio);
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void s5p_gpio_set_pull(struct s5p_gpio_bank *bank, int gpio, int mode);
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void s5p_gpio_set_drv(struct s5p_gpio_bank *bank, int gpio, int mode);
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void s5p_gpio_set_rate(struct s5p_gpio_bank *bank, int gpio, int mode);
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/* GPIO pins per bank */
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#define GPIO_PER_BANK 8
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static inline unsigned int s5p_gpio_base(int nr)
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{
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return S5PC110_GPIO_BASE;
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}
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#define s5pc110_gpio_get_nr(bank, pin) \
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((((((unsigned int)&(((struct s5pc110_gpio *)S5PC110_GPIO_BASE)->bank))\
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- S5PC110_GPIO_BASE) / sizeof(struct s5p_gpio_bank)) \
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* GPIO_PER_BANK) + pin)
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#endif
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/* Pin configurations */
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#define GPIO_INPUT 0x0
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#define GPIO_OUTPUT 0x1
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#define GPIO_IRQ 0xf
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#define GPIO_FUNC(x) (x)
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/* Pull mode */
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#define GPIO_PULL_NONE 0x0
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#define GPIO_PULL_DOWN 0x1
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#define GPIO_PULL_UP 0x2
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/* Drive Strength level */
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#define GPIO_DRV_1X 0x0
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#define GPIO_DRV_3X 0x1
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#define GPIO_DRV_2X 0x2
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#define GPIO_DRV_4X 0x3
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#define GPIO_DRV_FAST 0x0
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#define GPIO_DRV_SLOW 0x1
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#endif
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