// SPDX-License-Identifier: GPL-2.0-only
/*
 * linux/arch/arm/mach-omap1/board-h2.c
 *
 * Board specific inits for OMAP-1610 H2
 *
 * Copyright (C) 2001 RidgeRun, Inc.
 * Author: Greg Lonnon <glonnon@ridgerun.com>
 *
 * Copyright (C) 2002 MontaVista Software, Inc.
 *
 * Separated FPGA interrupts from innovator1510.c and cleaned up for 2.6
 * Copyright (C) 2004 Nokia Corporation by Tony Lindrgen <tony@atomide.com>
 *
 * H2 specific changes and cleanup
 * Copyright (C) 2004 Nokia Corporation by Imre Deak <imre.deak@nokia.com>
 */
#include <linux/gpio.h>
#include <linux/gpio/machine.h>
#include <linux/kernel.h>
#include <linux/platform_device.h>
#include <linux/delay.h>
#include <linux/i2c.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/platnand.h>
#include <linux/mtd/physmap.h>
#include <linux/input.h>
#include <linux/mfd/tps65010.h>
#include <linux/smc91x.h>
#include <linux/omapfb.h>
#include <linux/platform_data/gpio-omap.h>
#include <linux/leds.h>

#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>

#include <mach/mux.h>
#include <linux/omap-dma.h>
#include <mach/tc.h>
#include <linux/platform_data/keypad-omap.h>
#include "flash.h"

#include <mach/hardware.h>
#include <mach/usb.h>

#include "common.h"
#include "board-h2.h"

/* The first 16 SoC GPIO lines are on this GPIO chip */
#define OMAP_GPIO_LABEL                 "gpio-0-15"

/* At OMAP1610 Innovator the Ethernet is directly connected to CS1 */
#define OMAP1610_ETHR_START             0x04000300

static const unsigned int h2_keymap[] = {
        KEY(0, 0, KEY_LEFT),
        KEY(1, 0, KEY_RIGHT),
        KEY(2, 0, KEY_3),
        KEY(3, 0, KEY_F10),
        KEY(4, 0, KEY_F5),
        KEY(5, 0, KEY_9),
        KEY(0, 1, KEY_DOWN),
        KEY(1, 1, KEY_UP),
        KEY(2, 1, KEY_2),
        KEY(3, 1, KEY_F9),
        KEY(4, 1, KEY_F7),
        KEY(5, 1, KEY_0),
        KEY(0, 2, KEY_ENTER),
        KEY(1, 2, KEY_6),
        KEY(2, 2, KEY_1),
        KEY(3, 2, KEY_F2),
        KEY(4, 2, KEY_F6),
        KEY(5, 2, KEY_HOME),
        KEY(0, 3, KEY_8),
        KEY(1, 3, KEY_5),
        KEY(2, 3, KEY_F12),
        KEY(3, 3, KEY_F3),
        KEY(4, 3, KEY_F8),
        KEY(5, 3, KEY_END),
        KEY(0, 4, KEY_7),
        KEY(1, 4, KEY_4),
        KEY(2, 4, KEY_F11),
        KEY(3, 4, KEY_F1),
        KEY(4, 4, KEY_F4),
        KEY(5, 4, KEY_ESC),
        KEY(0, 5, KEY_F13),
        KEY(1, 5, KEY_F14),
        KEY(2, 5, KEY_F15),
        KEY(3, 5, KEY_F16),
        KEY(4, 5, KEY_SLEEP),
};

static struct mtd_partition h2_nor_partitions[] = {
        /* bootloader (U-Boot, etc) in first sector */
        {
              .name             = "bootloader",
              .offset           = 0,
              .size             = SZ_128K,
              .mask_flags       = MTD_WRITEABLE, /* force read-only */
        },
        /* bootloader params in the next sector */
        {
              .name             = "params",
              .offset           = MTDPART_OFS_APPEND,
              .size             = SZ_128K,
              .mask_flags       = 0,
        },
        /* kernel */
        {
              .name             = "kernel",
              .offset           = MTDPART_OFS_APPEND,
              .size             = SZ_2M,
              .mask_flags       = 0
        },
        /* file system */
        {
              .name             = "filesystem",
              .offset           = MTDPART_OFS_APPEND,
              .size             = MTDPART_SIZ_FULL,
              .mask_flags       = 0
        }
};

static struct physmap_flash_data h2_nor_data = {
        .width          = 2,
        .set_vpp        = omap1_set_vpp,
        .parts          = h2_nor_partitions,
        .nr_parts       = ARRAY_SIZE(h2_nor_partitions),
};

static struct resource h2_nor_resource = {
        /* This is on CS3, wherever it's mapped */
        .flags          = IORESOURCE_MEM,
};

static struct platform_device h2_nor_device = {
        .name           = "physmap-flash",
        .id             = 0,
        .dev            = {
                .platform_data  = &h2_nor_data,
        },
        .num_resources  = 1,
        .resource       = &h2_nor_resource,
};

static struct mtd_partition h2_nand_partitions[] = {
#if 0
        /* REVISIT:  enable these partitions if you make NAND BOOT
         * work on your H2 (rev C or newer); published versions of
         * x-load only support P2 and H3.
         */
        {
                .name           = "xloader",
                .offset         = 0,
                .size           = 64 * 1024,
                .mask_flags     = MTD_WRITEABLE,        /* force read-only */
        },
        {
                .name           = "bootloader",
                .offset         = MTDPART_OFS_APPEND,
                .size           = 256 * 1024,
                .mask_flags     = MTD_WRITEABLE,        /* force read-only */
        },
        {
                .name           = "params",
                .offset         = MTDPART_OFS_APPEND,
                .size           = 192 * 1024,
        },
        {
                .name           = "kernel",
                .offset         = MTDPART_OFS_APPEND,
                .size           = 2 * SZ_1M,
        },
#endif
        {
                .name           = "filesystem",
                .size           = MTDPART_SIZ_FULL,
                .offset         = MTDPART_OFS_APPEND,
        },
};

#define H2_NAND_RB_GPIO_PIN     62

static int h2_nand_dev_ready(struct nand_chip *chip)
{
        return gpio_get_value(H2_NAND_RB_GPIO_PIN);
}

static struct platform_nand_data h2_nand_platdata = {
        .chip   = {
                .nr_chips               = 1,
                .chip_offset            = 0,
                .nr_partitions          = ARRAY_SIZE(h2_nand_partitions),
                .partitions             = h2_nand_partitions,
                .options                = NAND_SAMSUNG_LP_OPTIONS,
        },
        .ctrl   = {
                .cmd_ctrl       = omap1_nand_cmd_ctl,
                .dev_ready      = h2_nand_dev_ready,
        },
};

static struct resource h2_nand_resource = {
        .flags          = IORESOURCE_MEM,
};

static struct platform_device h2_nand_device = {
        .name           = "gen_nand",
        .id             = 0,
        .dev            = {
                .platform_data  = &h2_nand_platdata,
        },
        .num_resources  = 1,
        .resource       = &h2_nand_resource,
};

static struct smc91x_platdata h2_smc91x_info = {
        .flags  = SMC91X_USE_16BIT | SMC91X_NOWAIT,
        .leda   = RPC_LED_100_10,
        .ledb   = RPC_LED_TX_RX,
};

static struct resource h2_smc91x_resources[] = {
        [0] = {
                .start  = OMAP1610_ETHR_START,          /* Physical */
                .end    = OMAP1610_ETHR_START + 0xf,
                .flags  = IORESOURCE_MEM,
        },
        [1] = {
                .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE,
        },
};

static struct platform_device h2_smc91x_device = {
        .name           = "smc91x",
        .id             = 0,
        .dev    = {
                .platform_data  = &h2_smc91x_info,
        },
        .num_resources  = ARRAY_SIZE(h2_smc91x_resources),
        .resource       = h2_smc91x_resources,
};

static struct resource h2_kp_resources[] = {
        [0] = {
                .start  = INT_KEYBOARD,
                .end    = INT_KEYBOARD,
                .flags  = IORESOURCE_IRQ,
        },
};

static const struct matrix_keymap_data h2_keymap_data = {
        .keymap         = h2_keymap,
        .keymap_size    = ARRAY_SIZE(h2_keymap),
};

static struct omap_kp_platform_data h2_kp_data = {
        .rows           = 8,
        .cols           = 8,
        .keymap_data    = &h2_keymap_data,
        .rep            = true,
        .delay          = 9,
        .dbounce        = true,
};

static struct platform_device h2_kp_device = {
        .name           = "omap-keypad",
        .id             = -1,
        .dev            = {
                .platform_data = &h2_kp_data,
        },
        .num_resources  = ARRAY_SIZE(h2_kp_resources),
        .resource       = h2_kp_resources,
};

static const struct gpio_led h2_gpio_led_pins[] = {
        {
                .name           = "h2:red",
                .default_trigger = "heartbeat",
                .gpio           = 3,
        },
        {
                .name           = "h2:green",
                .default_trigger = "cpu0",
                .gpio           = OMAP_MPUIO(4),
        },
};

static struct gpio_led_platform_data h2_gpio_led_data = {
        .leds           = h2_gpio_led_pins,
        .num_leds       = ARRAY_SIZE(h2_gpio_led_pins),
};

static struct platform_device h2_gpio_leds = {
        .name   = "leds-gpio",
        .id     = -1,
        .dev    = {
                .platform_data = &h2_gpio_led_data,
        },
};

static struct platform_device *h2_devices[] __initdata = {
        &h2_nor_device,
        &h2_nand_device,
        &h2_smc91x_device,
        &h2_kp_device,
        &h2_gpio_leds,
};

static void __init h2_init_smc91x(void)
{
        if (gpio_request(0, "SMC91x irq") < 0) {
                printk("Error requesting gpio 0 for smc91x irq\n");
                return;
        }
}

static int tps_setup(struct i2c_client *client, void *context)
{
        if (!IS_BUILTIN(CONFIG_TPS65010))
                return -ENOSYS;

        tps65010_config_vregs1(TPS_LDO2_ENABLE | TPS_VLDO2_3_0V |
                                TPS_LDO1_ENABLE | TPS_VLDO1_3_0V);

        return 0;
}

static struct tps65010_board tps_board = {
        .base           = H2_TPS_GPIO_BASE,
        .outmask        = 0x0f,
        .setup          = tps_setup,
};

static struct i2c_board_info __initdata h2_i2c_board_info[] = {
        {
                I2C_BOARD_INFO("tps65010", 0x48),
                .platform_data  = &tps_board,
        }, {
                .type = "isp1301_omap",
                .addr = 0x2d,
                .dev_name = "isp1301",
        },
};

static struct gpiod_lookup_table isp1301_gpiod_table = {
        .dev_id = "isp1301",
        .table = {
                /* Active low since the irq triggers on falling edge */
                GPIO_LOOKUP(OMAP_GPIO_LABEL, 2,
                            NULL, GPIO_ACTIVE_LOW),
                { },
        },
};

static struct omap_usb_config h2_usb_config __initdata = {
        /* usb1 has a Mini-AB port and external isp1301 transceiver */
        .otg            = 2,

#if IS_ENABLED(CONFIG_USB_OMAP)
        .hmc_mode       = 19,   /* 0:host(off) 1:dev|otg 2:disabled */
        /* .hmc_mode    = 21,*/ /* 0:host(off) 1:dev(loopback) 2:host(loopback) */
#elif   IS_ENABLED(CONFIG_USB_OHCI_HCD)
        /* needs OTG cable, or NONSTANDARD (B-to-MiniB) */
        .hmc_mode       = 20,   /* 1:dev|otg(off) 1:host 2:disabled */
#endif

        .pins[1]        = 3,
};

static const struct omap_lcd_config h2_lcd_config __initconst = {
        .ctrl_name      = "internal",
};

static void __init h2_init(void)
{
        h2_init_smc91x();

        /* Here we assume the NOR boot config:  NOR on CS3 (possibly swapped
         * to address 0 by a dip switch), NAND on CS2B.  The NAND driver will
         * notice whether a NAND chip is enabled at probe time.
         *
         * FIXME revC boards (and H3) support NAND-boot, with a dip switch to
         * put NOR on CS2B and NAND (which on H2 may be 16bit) on CS3.  Try
         * detecting that in code here, to avoid probing every possible flash
         * configuration...
         */
        h2_nor_resource.end = h2_nor_resource.start = omap_cs3_phys();
        h2_nor_resource.end += SZ_32M - 1;

        h2_nand_resource.end = h2_nand_resource.start = OMAP_CS2B_PHYS;
        h2_nand_resource.end += SZ_4K - 1;
        BUG_ON(gpio_request(H2_NAND_RB_GPIO_PIN, "NAND ready") < 0);
        gpio_direction_input(H2_NAND_RB_GPIO_PIN);

        gpiod_add_lookup_table(&isp1301_gpiod_table);

        omap_cfg_reg(L3_1610_FLASH_CS2B_OE);
        omap_cfg_reg(M8_1610_FLASH_CS2B_WE);

        /* MMC:  card detect and WP */
        /* omap_cfg_reg(U19_ARMIO1); */         /* CD */
        omap_cfg_reg(BALLOUT_V8_ARMIO3);        /* WP */

        /* Mux pins for keypad */
        omap_cfg_reg(F18_1610_KBC0);
        omap_cfg_reg(D20_1610_KBC1);
        omap_cfg_reg(D19_1610_KBC2);
        omap_cfg_reg(E18_1610_KBC3);
        omap_cfg_reg(C21_1610_KBC4);
        omap_cfg_reg(G18_1610_KBR0);
        omap_cfg_reg(F19_1610_KBR1);
        omap_cfg_reg(H14_1610_KBR2);
        omap_cfg_reg(E20_1610_KBR3);
        omap_cfg_reg(E19_1610_KBR4);
        omap_cfg_reg(N19_1610_KBR5);

        /* GPIO based LEDs */
        omap_cfg_reg(P18_1610_GPIO3);
        omap_cfg_reg(MPUIO4);

        h2_smc91x_resources[1].start = gpio_to_irq(0);
        h2_smc91x_resources[1].end = gpio_to_irq(0);
        platform_add_devices(h2_devices, ARRAY_SIZE(h2_devices));
        omap_serial_init();

        /* ISP1301 IRQ wired at M14 */
        omap_cfg_reg(M14_1510_GPIO2);
        h2_i2c_board_info[0].irq = gpio_to_irq(58);
        omap_register_i2c_bus(1, 100, h2_i2c_board_info,
                              ARRAY_SIZE(h2_i2c_board_info));
        omap1_usb_init(&h2_usb_config);
        h2_mmc_init();

        omapfb_set_lcd_config(&h2_lcd_config);
}

MACHINE_START(OMAP_H2, "TI-H2")
        /* Maintainer: Imre Deak <imre.deak@nokia.com> */
        .atag_offset    = 0x100,
        .map_io         = omap16xx_map_io,
        .init_early     = omap1_init_early,
        .init_irq       = omap1_init_irq,
        .handle_irq     = omap1_handle_irq,
        .init_machine   = h2_init,
        .init_late      = omap1_init_late,
        .init_time      = omap1_timer_init,
        .restart        = omap1_restart,
MACHINE_END