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
  39 static struct flash_platform_data coyote_flash_data = {
  40         .map_name       = "cfi_probe",
  41         .width          = 2,
  42 };
  43
  44 static struct resource coyote_flash_resource = {
  45         .flags          = IORESOURCE_MEM,
  46 };
  47
  48 static 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
  58 static struct resource coyote_uart_resource = {
  59         .start  = IXP4XX_UART2_BASE_PHYS,
  60         .end    = IXP4XX_UART2_BASE_PHYS + 0x0fff,
  61         .flags  = IORESOURCE_MEM,
  62 };
  63
  64 static 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
  77 static 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
  87 static struct platform_device *coyote_devices[] __initdata = {
  88         &coyote_flash,
  89         &coyote_uart
  90 };
  91
  92 static 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
 113 MACHINE_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,
 125 MACHINE_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
 133 MACHINE_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,
 142 MACHINE_END
 143 #endif
 144