
/*
 * arch/arm/cpu/armv8/gxb/gpio.c
 *
 * Copyright (C) 2015 Amlogic, Inc. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
*/

#include <common.h>
#include <dm.h>
#include <linux/compiler.h>
#include <aml_gpio.h>
#include <asm/arch/gpio.h>

#define NE 0xffffffff
#define PK(reg, bit) ((reg<<5)|bit)
/*AO REG */
#define AO 0x10
#define AO2 0x11

static unsigned int gpio_to_pin[][6] = {
		[PIN_GPIOX_0] = {PK(5, 31), NE, NE, NE, NE, NE,},
		[PIN_GPIOX_1] = {PK(5, 30), NE, NE, NE, NE, NE,},
		[PIN_GPIOX_2] = {PK(5, 29), NE, NE, NE, NE, NE,},
		[PIN_GPIOX_3] = {PK(5, 28), NE, NE, NE, NE, NE,},
		[PIN_GPIOX_4] = {PK(5, 27), NE, NE, NE, NE, NE,},
		[PIN_GPIOX_5] = {PK(5, 26), NE, NE, NE, NE, NE,},
		[PIN_GPIOX_6] = {PK(5, 25), NE, NE, NE, NE, NE,},
		[PIN_GPIOX_7] = {PK(5, 24), PK(5, 14), NE, NE, NE, NE,},
		[PIN_GPIOX_8] = {PK(5, 23), PK(5, 13), PK(5, 3), NE, NE, NE,},
		[PIN_GPIOX_9] = {PK(5, 22), PK(5, 12), PK(5, 2), NE, NE, NE,},
		[PIN_GPIOX_10] = {PK(5, 21), PK(5, 11), PK(5, 5), PK(5, 1), NE, NE,},
		[PIN_GPIOX_11] = {PK(5, 20), PK(5, 10), PK(5, 4), PK(5, 0), NE, NE,},
		[PIN_GPIOX_12] = {PK(5, 19), PK(5, 9), NE, NE, NE, NE,},
		[PIN_GPIOX_13] = {PK(5, 18), PK(5, 8), NE, NE, NE, NE,},
		[PIN_GPIOX_14] = {PK(5, 17), PK(5, 7), NE, NE, NE, NE,},
		[PIN_GPIOX_15] = {PK(5, 16), PK(5, 6), NE, NE, NE, NE,},
		[PIN_GPIOX_16] = {PK(5, 15), NE, NE, NE, NE, NE,},
		[PIN_GPIOX_17] = {NE, NE, NE, NE, NE, NE,},
		[PIN_GPIOX_18] = {NE, NE, NE, NE, NE, NE,},

		[PIN_BOOT_0] = {PK(7, 31), NE, NE, NE, NE, NE,},
		[PIN_BOOT_1] = {PK(7, 31), NE, NE, NE, NE, NE,},
		[PIN_BOOT_2] = {PK(7, 31), NE, NE, NE, NE, NE,},
		[PIN_BOOT_3] = {PK(7, 23), PK(7, 31), NE, NE, NE, NE,},
		[PIN_BOOT_4] = {PK(7, 22), PK(7, 31), NE, NE, NE, NE,},
		[PIN_BOOT_5] = {PK(7, 21), PK(7, 31), NE, NE, NE, NE,},
		[PIN_BOOT_6] = {PK(7, 20), PK(7, 31), NE, NE, NE, NE,},
		[PIN_BOOT_7] = {PK(7, 19), PK(7, 31), NE, NE, NE, NE,},
		[PIN_BOOT_8] = {PK(7, 18), PK(7, 30), PK(7, 7), NE, NE, NE,},
		[PIN_BOOT_9] = {PK(7, 17), PK(7, 6), NE, NE, NE, NE,},
		[PIN_BOOT_10] = {PK(7, 16), PK(7, 29), PK(7, 5), NE, NE, NE,},
		[PIN_BOOT_11] = {PK(7, 15), PK(7, 4), PK(7, 13), NE, NE, NE,},
		[PIN_BOOT_12] = {PK(7, 3), PK(7, 12), NE, NE, NE, NE,},
		[PIN_BOOT_13] = {PK(7, 2), PK(7, 11), NE, NE, NE, NE,},
		[PIN_BOOT_14] = {PK(7, 1), NE, NE, NE, NE, NE,},
		[PIN_BOOT_15] = {PK(7, 28), PK(7, 0), PK(7, 10), NE, NE, NE,},

		[PIN_GPIOH_0] = {PK(6, 31), NE, NE, NE, NE, NE,},
		[PIN_GPIOH_1] = {PK(6, 30), NE, NE, NE, NE, NE,},
		[PIN_GPIOH_2] = {PK(6, 29), NE, NE, NE, NE, NE,},
		[PIN_GPIOH_3] = {NE, NE, NE, NE, NE, NE,},
		[PIN_GPIOH_4] = {PK(6, 28), PK(6, 27), NE, NE, NE, NE,},
		[PIN_GPIOH_5] = {NE, NE, NE, NE, NE, NE,},
		[PIN_GPIOH_6] = {PK(6, 26), PK(6, 20), NE, NE, NE, NE,},
		[PIN_GPIOH_7] = {PK(6, 25), PK(6, 22), PK(6, 19), NE, NE, NE,},
		[PIN_GPIOH_8] = {PK(6, 24), PK(6, 21), PK(6, 18), NE, NE, NE,},
		[PIN_GPIOH_9] = {PK(6, 23), PK(6, 17), NE, NE, NE, NE,},

		[PIN_GPIOZ_0] = {PK(4, 23), PK(3, 31), PK(3, 19), PK(3, 14), NE, NE,},
		[PIN_GPIOZ_1] = {PK(4, 22), PK(3, 30), PK(3, 18), PK(3, 13), NE, NE,},
		[PIN_GPIOZ_2] = {PK(4, 21), PK(3, 29), PK(3, 17), NE, NE, NE,},
		[PIN_GPIOZ_3] = {PK(4, 20), PK(3, 28), PK(3, 16), PK(3, 12), NE, NE,},
		[PIN_GPIOZ_4] = {PK(4, 19), PK(3, 27), PK(3, 15), PK(3, 11), NE, NE,},
		[PIN_GPIOZ_5] = {PK(4, 18), PK(3, 26), PK(3, 11), NE, NE, NE,},
		[PIN_GPIOZ_6] = {PK(4, 17), PK(4, 9), PK(3, 25), PK(3, 11), NE, NE,},
		[PIN_GPIOZ_7] = {PK(4, 16), PK(4, 8), PK(3, 24), PK(3, 11), NE, NE,},
		[PIN_GPIOZ_8] = {PK(4, 15), PK(4, 7), PK(3, 23), PK(3, 11), NE, NE,},
		[PIN_GPIOZ_9] = {PK(4, 14), PK(4, 6), PK(3, 22), PK(3, 11), NE, NE,},
		[PIN_GPIOZ_10] = {PK(4, 13), PK(4, 5), PK(3, 11), NE, NE, NE,},
		[PIN_GPIOZ_11] = {PK(4, 12), PK(4, 4), PK(3, 11), NE, NE, NE,},
		[PIN_GPIOZ_12] = {PK(4, 11), PK(4, 3), NE, NE, NE, NE,},
		[PIN_GPIOZ_13] = {PK(4, 10), PK(4, 2), NE, NE, NE, NE,},
		[PIN_GPIOZ_14] = {PK(3, 21), PK(4, 25), NE, NE, NE, NE,},
		[PIN_GPIOZ_15] = {PK(3, 20), PK(4, 24), NE, NE, NE, NE,},

		[PIN_GPIODV_0] = {PK(3, 10), PK(3, 2), PK(2, 10), PK(2, 4), PK(1, 8),
					NE,},
		[PIN_GPIODV_1] = {PK(3, 10), PK(3, 1), PK(2, 10), PK(2, 3), NE, NE,},
		[PIN_GPIODV_2] = {PK(3, 9), PK(3, 0), PK(2, 10), PK(2, 3), NE, NE,},
		[PIN_GPIODV_3] = {PK(3, 9), PK(2, 31), PK(2, 10), PK(2, 3), NE, NE,},
		[PIN_GPIODV_4] = {PK(3, 9), PK(2, 30), PK(2, 10), PK(2, 3), NE, NE,},
		[PIN_GPIODV_5] = {PK(3, 9), PK(2, 29), PK(2, 10), PK(2, 3), NE, NE,},
		[PIN_GPIODV_6] = {PK(3, 9), PK(2, 28), PK(2, 10), PK(2, 3), NE, NE,},
		[PIN_GPIODV_7] = {PK(3, 9), PK(2, 27), PK(2, 10), PK(2, 3), NE, NE,},
		[PIN_GPIODV_8] = {PK(3, 8), PK(2, 26), PK(2, 10), PK(2, 2), NE, NE,},
		[PIN_GPIODV_9] = {PK(3, 8), PK(2, 25), PK(2, 10), PK(2, 1), NE, NE,},
		[PIN_GPIODV_10] = {PK(3, 7), PK(2, 24), PK(2, 10), PK(2, 0), NE, NE,},
		[PIN_GPIODV_11] = {PK(3, 7), PK(2, 23), PK(2, 10), PK(1, 31), NE, NE,},
		[PIN_GPIODV_12] = {PK(3, 7), PK(2, 22), PK(2, 10), PK(1, 30), NE, NE,},
		[PIN_GPIODV_13] = {PK(3, 7), PK(2, 21), PK(2, 10), PK(1, 29), NE, NE,},
		[PIN_GPIODV_14] = {PK(3, 7), PK(2, 20), PK(2, 10), PK(1, 28), NE, NE,},
		[PIN_GPIODV_15] = {PK(3, 7), PK(2, 19), PK(2, 10), PK(1, 27), NE, NE,},
		[PIN_GPIODV_16] = {PK(3, 6), PK(2, 9), PK(1, 26), PK(1, 24), NE, NE,},
		[PIN_GPIODV_17] = {PK(3, 6), PK(2, 8), PK(1, 25), PK(1, 23), NE, NE,},
		[PIN_GPIODV_18] = {PK(3, 5), PK(1, 25), PK(1, 17), NE, NE, NE,},
		[PIN_GPIODV_19] = {PK(3, 5), PK(1, 25), PK(1, 16), NE, NE, NE,},
		[PIN_GPIODV_20] = {PK(3, 5), PK(1, 25), NE, NE, NE, NE,},
		[PIN_GPIODV_21] = {PK(3, 5), PK(1, 25), NE, NE, NE, NE,},
		[PIN_GPIODV_22] = {PK(3, 5), PK(2, 18), PK(1, 25), NE, NE, NE,},
		[PIN_GPIODV_23] = {PK(3, 5), PK(2, 17), PK(1, 25), NE, NE, NE,},
		[PIN_GPIODV_24] = {PK(3, 4), PK(2, 16), PK(2, 7), PK(1, 22), PK(1, 15),
					NE,},
		[PIN_GPIODV_25] = {PK(3, 3), PK(2, 15), PK(2, 6), PK(1, 21), PK(1, 14),
					NE,},
		[PIN_GPIODV_26] = {PK(2, 14), PK(1, 20), PK(1, 13), NE, NE, NE,},
		[PIN_GPIODV_27] = {PK(2, 13), PK(1, 18), PK(1, 19), PK(1, 12), NE, NE,},
		[PIN_GPIODV_28] = {PK(2, 12), PK(1, 9), PK(1, 11), NE, NE, NE,},
		[PIN_GPIODV_29] = {PK(2, 11), PK(2, 5), PK(1, 10), NE, NE, NE,},

		[GPIOAO_0] = {PK(AO, 12), PK(AO, 26), NE, NE, NE, NE,},
		[GPIOAO_1] = {PK(AO, 11), PK(AO, 25), NE, NE, NE, NE,},
		[GPIOAO_2] = {PK(AO, 10), PK(AO, 8), NE, NE, NE, NE,},
		[GPIOAO_3] = {PK(AO, 9), PK(AO, 7), PK(AO, 22), NE, NE, NE,},
		[GPIOAO_4] = {PK(AO, 24), PK(AO, 6), PK(AO, 2), NE, NE, NE,},
		[GPIOAO_5] = {PK(AO, 23), PK(AO, 5), PK(AO, 1), NE, NE, NE,},
		[GPIOAO_6] = {PK(AO, 16), PK(AO, 18), NE, NE, NE, NE,},
		[GPIOAO_7] = {PK(AO, 0), PK(AO, 21), NE, NE, NE, NE,},
		[GPIOAO_8] = {PK(AO, 15), PK(AO, 14), PK(AO2, 0), PK(AO, 17), NE, NE,},
		[GPIOAO_9] = {PK(AO, 31), PK(AO, 4), PK(AO2, 1), PK(AO, 3), NE, NE,},

		[PIN_CARD_0] = {PK(6, 5), NE, NE, NE, NE, NE,},
		[PIN_CARD_1] = {PK(6, 4), NE, NE, NE, NE, NE,},
		[PIN_CARD_2] = {PK(6, 3), NE, NE, NE, NE, NE,},
		[PIN_CARD_3] = {PK(6, 2), NE, NE, NE, NE, NE,},
		[PIN_CARD_4] = {PK(6, 1), PK(6, 9), PK(6, 11), PK(6, 7
		), NE, NE,},
		[PIN_CARD_5] = {PK(6, 0), PK(6, 8), PK(6, 10), PK(6, 6
		), NE, NE,},
		[PIN_CARD_6] = {NE, NE, NE, NE, NE, NE,},

		[PIN_GPIO_TEST_N] = {PK(AO, 13), PK(AO2, 2), NE, NE, NE, NE,},
};

#define BANK(n, f, l, per, peb, pr, pb, dr, db, or, ob, ir, ib)		\
	{								\
		.name	= n,						\
		.first	= f,						\
		.last	= l,						\
		.regs	= {						\
			[REG_PULLEN]	= { (0xc8834120 + (per<<2)), peb },			\
			[REG_PULL]	= { (0xc88344e8 + (pr<<2)), pb },			\
			[REG_DIR]	= { (0xc8834430 + (dr<<2)), db },			\
			[REG_OUT]	= { (0xc8834430 + (or<<2)), ob },			\
			[REG_IN]	= { (0xc8834430 + (ir<<2)), ib },			\
		},							\
	 }
#define AOBANK(n, f, l, per, peb, pr, pb, dr, db, or, ob, ir, ib)		\
	{								\
		.name	= n,						\
		.first	= f,						\
		.last	= l,						\
		.regs	= {						\
			[REG_PULLEN]	= { (0xc810002c + (per<<2)), peb },			\
			[REG_PULL]	= { (0xc810002c + (pr<<2)), pb },			\
			[REG_DIR]	= { (0xc8100024 + (dr<<2)), db },			\
			[REG_OUT]	= { (0xc8100024 + (or<<2)), ob },			\
			[REG_IN]	= { (0xc8100024 + (ir<<2)), ib },			\
		},							\
	 }

static struct meson_bank mesongxbb_banks[] = {
	/*   name    first         last
	 *   pullen  pull     dir     out     in  */
		BANK("GPIOX_",    PIN_GPIOX_0,  PIN_GPIOX_18,
		     4,  0,  4,  0,  12,  0,  13,  0,  14,  0),
		BANK("GPIODV_",  PIN_GPIODV_0, PIN_GPIODV_29,
		     0,  0,  0,  0,  0,  0,  1,  0,  2,  0),
		BANK("GPIOH_",    PIN_GPIOH_0,  PIN_GPIOH_9,
		     1, 20,  1, 20,  3, 20, 4, 20, 5, 20),
		BANK("GPIOZ_",    PIN_GPIOZ_0,  PIN_GPIOZ_15,
		     3,  0,  3,  0,  9, 0,  10, 0,  11, 0),
		BANK("CARD_", PIN_CARD_0,   PIN_CARD_6,
		     2, 20,  2, 20,  6, 20,  7, 20,  8, 20),
		BANK("BOOT_", PIN_BOOT_0,   PIN_BOOT_15,
		     2,  0,  2,  0,  6,  0, 7,  0, 8,  0),
		BANK("GPIOCLK_", PIN_GPIOCLK_0,   PIN_GPIOCLK_1,
		     3,  28,  3,  28,  9,  28, 10,  28, 11,  28),
		AOBANK("GPIOAO_",   GPIOAO_0, GPIOAO_9,
		     0,  0,  0, 16,  0,  0,  0, 16,  1,  0),
};

U_BOOT_DEVICES(gxbb_gpios) = {
	{ "gpio_aml", &mesongxbb_banks[0] },
	{ "gpio_aml", &mesongxbb_banks[1] },
	{ "gpio_aml", &mesongxbb_banks[2] },
	{ "gpio_aml", &mesongxbb_banks[3] },
	{ "gpio_aml", &mesongxbb_banks[4] },
	{ "gpio_aml", &mesongxbb_banks[5] },
	{ "gpio_aml", &mesongxbb_banks[6] },
	{ "gpio_aml", &mesongxbb_banks[7] },
};
static unsigned long domain[]={
	[0] = 0xc88344b0,
	[1] = 0xc8100014,
};
int  clear_pinmux(unsigned int pin)
{
	unsigned int *gpio_reg =  &gpio_to_pin[pin][0];
	int i, dom, reg, bit;
	for (i = 0;
	     i < sizeof(gpio_to_pin[pin])/sizeof(gpio_to_pin[pin][0]); i++) {
		if (gpio_reg[i] != NE) {
			reg = GPIO_REG(gpio_reg[i])&0xf;
			bit = GPIO_BIT(gpio_reg[i]);
			dom = GPIO_REG(gpio_reg[i])>>4;
			regmap_update_bits(domain[dom]+reg*4,BIT(bit),0);
		}
	}
	return 0;

}

#ifdef CONFIG_AML_SPICC
#include <asm/arch/secure_apb.h>
/* generic pins control for spicc.
 * if deleted, you have to add it into all gxl board files as necessary.
 * 		 SPI mux	other mux
 * GPIOX_8(MOSI) reg5[ 3]	reg5[23][13]	 reg6[ 3]
 * GPIOX_9(MISO) reg5[ 2]	reg5[22][12]	 reg6[ 2]
 * GPIOX_11(CLK) reg5[ 0]	reg5[20][10][ 4] reg6[ 0]
 */
int spicc_pinctrl_enable(bool enable)
{
	u32 regv;

	regv = readl(P_PERIPHS_PIN_MUX_6);
	regv &= ~(0xd << 0);
	writel(regv, P_PERIPHS_PIN_MUX_6);

	regv = readl(P_PERIPHS_PIN_MUX_5);
	regv &= ~((0xd << 20) | (0xd << 10) | (0xd << 0) | (1 << 4));
	if (enable)
		regv |= 0xd << 0;
	writel(regv, P_PERIPHS_PIN_MUX_5);

	return 0;
}
#endif /* CONFIG_AML_SPICC */