LXR linux/arch/arm/mach-ixp4xx/coyote-setup.c

   1// SPDX-License-Identifier: GPL-2.0
   2/*
   3 * arch/arm/mach-ixp4xx/coyote-setup.c
   4 *
   5 * Board setup for ADI Engineering and IXDGP425 boards
   6 *
   7 * Copyright (C) 2003-2005 MontaVista Software, Inc.
   8 *
   9 * Author: Deepak Saxena <dsaxena@plexity.net>
  10 */
  11
  12#include <linux/kernel.h>
  13#include <linux/init.h>
  14#include <linux/device.h>
  15#include <linux/serial.h>
  16#include <linux/tty.h>
  17#include <linux/serial_8250.h>
  18
  19#include <asm/types.h>
  20#include <asm/setup.h>
  21#include <asm/memory.h>
  22#include <mach/hardware.h>
  23#include <asm/irq.h>
  24#include <asm/mach-types.h>
  25#include <asm/mach/arch.h>
  26#include <asm/mach/flash.h>
  27
  28#include "irqs.h"
  29
  30#define COYOTE_IDE_BASE_PHYS    IXP4XX_EXP_BUS_BASE(3)
  31#define COYOTE_IDE_BASE_VIRT    0xFFFE1000
  32#define COYOTE_IDE_REGION_SIZE  0x1000
  33
  34#define COYOTE_IDE_DATA_PORT    0xFFFE10E0
  35#define COYOTE_IDE_CTRL_PORT    0xFFFE10FC
  36#define COYOTE_IDE_ERROR_PORT   0xFFFE10E2
  37#define IRQ_COYOTE_IDE          IRQ_IXP4XX_GPIO5
  38
  39static struct flash_platform_data coyote_flash_data = {
  40        .map_name       = "cfi_probe",
  41        .width          = 2,
  42};
  43
  44static struct resource coyote_flash_resource = {
  45        .flags          = IORESOURCE_MEM,
  46};
  47
  48static struct platform_device coyote_flash = {
  49        .name           = "IXP4XX-Flash",
  50        .id             = 0,
  51        .dev            = {
  52                .platform_data = &coyote_flash_data,
  53        },
  54        .num_resources  = 1,
  55        .resource       = &coyote_flash_resource,
  56};
  57
  58static struct resource coyote_uart_resource = {
  59        .start  = IXP4XX_UART2_BASE_PHYS,
  60        .end    = IXP4XX_UART2_BASE_PHYS + 0x0fff,
  61        .flags  = IORESOURCE_MEM,
  62};
  63
  64static struct plat_serial8250_port coyote_uart_data[] = {
  65        {
  66                .mapbase        = IXP4XX_UART2_BASE_PHYS,
  67                .membase        = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
  68                .irq            = IRQ_IXP4XX_UART2,
  69                .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
  70                .iotype         = UPIO_MEM,
  71                .regshift       = 2,
  72                .uartclk        = IXP4XX_UART_XTAL,
  73        },
  74        { },
  75};
  76
  77static struct platform_device coyote_uart = {
  78        .name           = "serial8250",
  79        .id             = PLAT8250_DEV_PLATFORM,
  80        .dev                    = {
  81                .platform_data  = coyote_uart_data,
  82        },
  83        .num_resources  = 1,
  84        .resource       = &coyote_uart_resource,
  85};
  86
  87static struct platform_device *coyote_devices[] __initdata = {
  88        &coyote_flash,
  89        &coyote_uart
  90};
  91
  92static void __init coyote_init(void)
  93{
  94        ixp4xx_sys_init();
  95
  96        coyote_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
  97        coyote_flash_resource.end = IXP4XX_EXP_BUS_BASE(0) + SZ_32M - 1;
  98
  99        *IXP4XX_EXP_CS0 |= IXP4XX_FLASH_WRITABLE;
 100        *IXP4XX_EXP_CS1 = *IXP4XX_EXP_CS0;
 101
 102        if (machine_is_ixdpg425()) {
 103                coyote_uart_data[0].membase =
 104                        (char*)(IXP4XX_UART1_BASE_VIRT + REG_OFFSET);
 105                coyote_uart_data[0].mapbase = IXP4XX_UART1_BASE_PHYS;
 106                coyote_uart_data[0].irq = IRQ_IXP4XX_UART1;
 107        }
 108
 109        platform_add_devices(coyote_devices, ARRAY_SIZE(coyote_devices));
 110}
 111
 112#ifdef CONFIG_ARCH_ADI_COYOTE
 113MACHINE_START(ADI_COYOTE, "ADI Engineering Coyote")
 114        /* Maintainer: MontaVista Software, Inc. */
 115        .map_io         = ixp4xx_map_io,
 116        .init_early     = ixp4xx_init_early,
 117        .init_irq       = ixp4xx_init_irq,
 118        .init_time      = ixp4xx_timer_init,
 119        .atag_offset    = 0x100,
 120        .init_machine   = coyote_init,
 121#if defined(CONFIG_PCI)
 122        .dma_zone_size  = SZ_64M,
 123#endif
 124        .restart        = ixp4xx_restart,
 125MACHINE_END
 126#endif
 127
 128/*
 129 * IXDPG425 is identical to Coyote except for which serial port
 130 * is connected.
 131 */
 132#ifdef CONFIG_MACH_IXDPG425
 133MACHINE_START(IXDPG425, "Intel IXDPG425")
 134        /* Maintainer: MontaVista Software, Inc. */
 135        .map_io         = ixp4xx_map_io,
 136        .init_early     = ixp4xx_init_early,
 137        .init_irq       = ixp4xx_init_irq,
 138        .init_time      = ixp4xx_timer_init,
 139        .atag_offset    = 0x100,
 140        .init_machine   = coyote_init,
 141        .restart        = ixp4xx_restart,
 142MACHINE_END
 143#endif
 144
 145