// SPDX-License-Identifier: GPL-2.0
/*
 * arch/arm/mach-ixp4xx/avila-setup.c
 *
 * Gateworks Avila board-setup
 *
 * Author: Michael-Luke Jones <mlj28@cam.ac.uk>
 *
 * Based on ixdp-setup.c
 * Copyright (C) 2003-2005 MontaVista Software, Inc.
 *
 * Author: Deepak Saxena <dsaxena@plexity.net>
 */

#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/device.h>
#include <linux/serial.h>
#include <linux/tty.h>
#include <linux/serial_8250.h>
#include <linux/gpio/machine.h>
#include <asm/types.h>
#include <asm/setup.h>
#include <asm/memory.h>
#include <mach/hardware.h>
#include <asm/mach-types.h>
#include <asm/irq.h>
#include <asm/mach/arch.h>
#include <asm/mach/flash.h>

#include "irqs.h"

#define AVILA_SDA_PIN   7
#define AVILA_SCL_PIN   6

static struct flash_platform_data avila_flash_data = {
        .map_name       = "cfi_probe",
        .width          = 2,
};

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

static struct platform_device avila_flash = {
        .name           = "IXP4XX-Flash",
        .id             = 0,
        .dev            = {
                .platform_data = &avila_flash_data,
        },
        .num_resources  = 1,
        .resource       = &avila_flash_resource,
};

static struct gpiod_lookup_table avila_i2c_gpiod_table = {
        .dev_id         = "i2c-gpio.0",
        .table          = {
                GPIO_LOOKUP_IDX("IXP4XX_GPIO_CHIP", AVILA_SDA_PIN,
                                NULL, 0, GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
                GPIO_LOOKUP_IDX("IXP4XX_GPIO_CHIP", AVILA_SCL_PIN,
                                NULL, 1, GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
        },
};

static struct platform_device avila_i2c_gpio = {
        .name           = "i2c-gpio",
        .id             = 0,
        .dev     = {
                .platform_data  = NULL,
        },
};

static struct resource avila_uart_resources[] = {
        {
                .start          = IXP4XX_UART1_BASE_PHYS,
                .end            = IXP4XX_UART1_BASE_PHYS + 0x0fff,
                .flags          = IORESOURCE_MEM
        },
        {
                .start          = IXP4XX_UART2_BASE_PHYS,
                .end            = IXP4XX_UART2_BASE_PHYS + 0x0fff,
                .flags          = IORESOURCE_MEM
        }
};

static struct plat_serial8250_port avila_uart_data[] = {
        {
                .mapbase        = IXP4XX_UART1_BASE_PHYS,
                .membase        = (char *)IXP4XX_UART1_BASE_VIRT + REG_OFFSET,
                .irq            = IRQ_IXP4XX_UART1,
                .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
                .iotype         = UPIO_MEM,
                .regshift       = 2,
                .uartclk        = IXP4XX_UART_XTAL,
        },
        {
                .mapbase        = IXP4XX_UART2_BASE_PHYS,
                .membase        = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
                .irq            = IRQ_IXP4XX_UART2,
                .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
                .iotype         = UPIO_MEM,
                .regshift       = 2,
                .uartclk        = IXP4XX_UART_XTAL,
        },
        { },
};

static struct platform_device avila_uart = {
        .name                   = "serial8250",
        .id                     = PLAT8250_DEV_PLATFORM,
        .dev.platform_data      = avila_uart_data,
        .num_resources          = 2,
        .resource               = avila_uart_resources
};

static struct resource avila_pata_resources[] = {
        {
                .flags  = IORESOURCE_MEM
        },
        {
                .flags  = IORESOURCE_MEM,
        },
        {
                .name   = "intrq",
                .start  = IRQ_IXP4XX_GPIO12,
                .end    = IRQ_IXP4XX_GPIO12,
                .flags  = IORESOURCE_IRQ,
        },
};

static struct ixp4xx_pata_data avila_pata_data = {
        .cs0_bits       = 0xbfff0043,
        .cs1_bits       = 0xbfff0043,
};

static struct platform_device avila_pata = {
        .name                   = "pata_ixp4xx_cf",
        .id                     = 0,
        .dev.platform_data      = &avila_pata_data,
        .num_resources          = ARRAY_SIZE(avila_pata_resources),
        .resource               = avila_pata_resources,
};

static struct platform_device *avila_devices[] __initdata = {
        &avila_i2c_gpio,
        &avila_flash,
        &avila_uart
};

static void __init avila_init(void)
{
        ixp4xx_sys_init();

        avila_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
        avila_flash_resource.end =
                IXP4XX_EXP_BUS_BASE(0) + ixp4xx_exp_bus_size - 1;

        gpiod_add_lookup_table(&avila_i2c_gpiod_table);

        platform_add_devices(avila_devices, ARRAY_SIZE(avila_devices));

        avila_pata_resources[0].start = IXP4XX_EXP_BUS_BASE(1);
        avila_pata_resources[0].end = IXP4XX_EXP_BUS_END(1);

        avila_pata_resources[1].start = IXP4XX_EXP_BUS_BASE(2);
        avila_pata_resources[1].end = IXP4XX_EXP_BUS_END(2);

        avila_pata_data.cs0_cfg = IXP4XX_EXP_CS1;
        avila_pata_data.cs1_cfg = IXP4XX_EXP_CS2;

        platform_device_register(&avila_pata);

}

MACHINE_START(AVILA, "Gateworks Avila Network Platform")
        /* Maintainer: Deepak Saxena <dsaxena@plexity.net> */
        .map_io         = ixp4xx_map_io,
        .init_early     = ixp4xx_init_early,
        .init_irq       = ixp4xx_init_irq,
        .init_time      = ixp4xx_timer_init,
        .atag_offset    = 0x100,
        .init_machine   = avila_init,
#if defined(CONFIG_PCI)
        .dma_zone_size  = SZ_64M,
#endif
        .restart        = ixp4xx_restart,
MACHINE_END

 /*
  * Loft is functionally equivalent to Avila except that it has a
  * different number for the maximum PCI devices.  The MACHINE
  * structure below is identical to Avila except for the comment.
  */
#ifdef CONFIG_MACH_LOFT
MACHINE_START(LOFT, "Giant Shoulder Inc Loft board")
        /* Maintainer: Tom Billman <kernel@giantshoulderinc.com> */
        .map_io         = ixp4xx_map_io,
        .init_early     = ixp4xx_init_early,
        .init_irq       = ixp4xx_init_irq,
        .init_time      = ixp4xx_timer_init,
        .atag_offset    = 0x100,
        .init_machine   = avila_init,
#if defined(CONFIG_PCI)
        .dma_zone_size  = SZ_64M,
#endif
        .restart        = ixp4xx_restart,
MACHINE_END
#endif