arch/arm/mach-ixp4xx/gateway7001-setup.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * arch/arm/mach-ixp4xx/gateway7001-setup.c
   4  *
   5  * Board setup for the Gateway 7001 board
   6  *
   7  * Copyright (C) 2007 Imre Kaloz <kaloz@openwrt.org>
   8  *
   9  * based on coyote-setup.c:
  10  *      Copyright (C) 2003-2005 MontaVista Software, Inc.
  11  *
  12  * Author: Imre Kaloz <Kaloz@openwrt.org>
  13  */
  14
  15 #include <linux/kernel.h>
  16 #include <linux/init.h>
  17 #include <linux/device.h>
  18 #include <linux/serial.h>
  19 #include <linux/tty.h>
  20 #include <linux/serial_8250.h>
  21
  22 #include <asm/types.h>
  23 #include <asm/setup.h>
  24 #include <asm/memory.h>
  25 #include <mach/hardware.h>
  26 #include <asm/irq.h>
  27 #include <asm/mach-types.h>
  28 #include <asm/mach/arch.h>
  29 #include <asm/mach/flash.h>
  30
  31 #include "irqs.h"
  32
  33 static struct flash_platform_data gateway7001_flash_data = {
  34         .map_name       = "cfi_probe",
  35         .width          = 2,
  36 };
  37
  38 static struct resource gateway7001_flash_resource = {
  39         .flags          = IORESOURCE_MEM,
  40 };
  41
  42 static struct platform_device gateway7001_flash = {
  43         .name           = "IXP4XX-Flash",
  44         .id             = 0,
  45         .dev            = {
  46                 .platform_data = &gateway7001_flash_data,
  47         },
  48         .num_resources  = 1,
  49         .resource       = &gateway7001_flash_resource,
  50 };
  51
  52 static struct resource gateway7001_uart_resource = {
  53         .start  = IXP4XX_UART2_BASE_PHYS,
  54         .end    = IXP4XX_UART2_BASE_PHYS + 0x0fff,
  55         .flags  = IORESOURCE_MEM,
  56 };
  57
  58 static struct plat_serial8250_port gateway7001_uart_data[] = {
  59         {
  60                 .mapbase        = IXP4XX_UART2_BASE_PHYS,
  61                 .membase        = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
  62                 .irq            = IRQ_IXP4XX_UART2,
  63                 .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
  64                 .iotype         = UPIO_MEM,
  65                 .regshift       = 2,
  66                 .uartclk        = IXP4XX_UART_XTAL,
  67         },
  68         { },
  69 };
  70
  71 static struct platform_device gateway7001_uart = {
  72         .name           = "serial8250",
  73         .id             = PLAT8250_DEV_PLATFORM,
  74         .dev                    = {
  75                 .platform_data  = gateway7001_uart_data,
  76         },
  77         .num_resources  = 1,
  78         .resource       = &gateway7001_uart_resource,
  79 };
  80
  81 static struct platform_device *gateway7001_devices[] __initdata = {
  82         &gateway7001_flash,
  83         &gateway7001_uart
  84 };
  85
  86 static void __init gateway7001_init(void)
  87 {
  88         ixp4xx_sys_init();
  89
  90         gateway7001_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
  91         gateway7001_flash_resource.end = IXP4XX_EXP_BUS_BASE(0) + SZ_32M - 1;
  92
  93         *IXP4XX_EXP_CS0 |= IXP4XX_FLASH_WRITABLE;
  94         *IXP4XX_EXP_CS1 = *IXP4XX_EXP_CS0;
  95
  96         platform_add_devices(gateway7001_devices, ARRAY_SIZE(gateway7001_devices));
  97 }
  98
  99 #ifdef CONFIG_MACH_GATEWAY7001
 100 MACHINE_START(GATEWAY7001, "Gateway 7001 AP")
 101         /* Maintainer: Imre Kaloz <kaloz@openwrt.org> */
 102         .map_io         = ixp4xx_map_io,
 103         .init_early     = ixp4xx_init_early,
 104         .init_irq       = ixp4xx_init_irq,
 105         .init_time      = ixp4xx_timer_init,
 106         .atag_offset    = 0x100,
 107         .init_machine   = gateway7001_init,
 108 #if defined(CONFIG_PCI)
 109         .dma_zone_size  = SZ_64M,
 110 #endif
 111         .restart        = ixp4xx_restart,
 112 MACHINE_END
 113 #endif