arch/arm/mach-ixp4xx/wg302v2-setup.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * arch/arm/mach-ixp4xx/wg302-setup.c
   4  *
   5  * Board setup for the Netgear WG302 v2 and WAG302 v2
   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
  16 #include <linux/kernel.h>
  17 #include <linux/init.h>
  18 #include <linux/device.h>
  19 #include <linux/serial.h>
  20 #include <linux/tty.h>
  21 #include <linux/serial_8250.h>
  22
  23 #include <asm/types.h>
  24 #include <asm/setup.h>
  25 #include <asm/memory.h>
  26 #include <mach/hardware.h>
  27 #include <asm/irq.h>
  28 #include <asm/mach-types.h>
  29 #include <asm/mach/arch.h>
  30 #include <asm/mach/flash.h>
  31
  32 #include "irqs.h"
  33
  34 static struct flash_platform_data wg302v2_flash_data = {
  35         .map_name       = "cfi_probe",
  36         .width          = 2,
  37 };
  38
  39 static struct resource wg302v2_flash_resource = {
  40         .flags          = IORESOURCE_MEM,
  41 };
  42
  43 static struct platform_device wg302v2_flash = {
  44         .name           = "IXP4XX-Flash",
  45         .id             = 0,
  46         .dev            = {
  47                 .platform_data = &wg302v2_flash_data,
  48         },
  49         .num_resources  = 1,
  50         .resource       = &wg302v2_flash_resource,
  51 };
  52
  53 static struct resource wg302v2_uart_resource = {
  54         .start  = IXP4XX_UART2_BASE_PHYS,
  55         .end    = IXP4XX_UART2_BASE_PHYS + 0x0fff,
  56         .flags  = IORESOURCE_MEM,
  57 };
  58
  59 static struct plat_serial8250_port wg302v2_uart_data[] = {
  60         {
  61                 .mapbase        = IXP4XX_UART2_BASE_PHYS,
  62                 .membase        = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
  63                 .irq            = IRQ_IXP4XX_UART2,
  64                 .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
  65                 .iotype         = UPIO_MEM,
  66                 .regshift       = 2,
  67                 .uartclk        = IXP4XX_UART_XTAL,
  68         },
  69         { },
  70 };
  71
  72 static struct platform_device wg302v2_uart = {
  73         .name           = "serial8250",
  74         .id             = PLAT8250_DEV_PLATFORM,
  75         .dev                    = {
  76                 .platform_data  = wg302v2_uart_data,
  77         },
  78         .num_resources  = 1,
  79         .resource       = &wg302v2_uart_resource,
  80 };
  81
  82 static struct platform_device *wg302v2_devices[] __initdata = {
  83         &wg302v2_flash,
  84         &wg302v2_uart,
  85 };
  86
  87 static void __init wg302v2_init(void)
  88 {
  89         ixp4xx_sys_init();
  90
  91         wg302v2_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
  92         wg302v2_flash_resource.end = IXP4XX_EXP_BUS_BASE(0) + SZ_32M - 1;
  93
  94         *IXP4XX_EXP_CS0 |= IXP4XX_FLASH_WRITABLE;
  95         *IXP4XX_EXP_CS1 = *IXP4XX_EXP_CS0;
  96
  97         platform_add_devices(wg302v2_devices, ARRAY_SIZE(wg302v2_devices));
  98 }
  99
 100 #ifdef CONFIG_MACH_WG302V2
 101 MACHINE_START(WG302V2, "Netgear WG302 v2 / WAG302 v2")
 102         /* Maintainer: Imre Kaloz <kaloz@openwrt.org> */
 103         .map_io         = ixp4xx_map_io,
 104         .init_early     = ixp4xx_init_early,
 105         .init_irq       = ixp4xx_init_irq,
 106         .init_time      = ixp4xx_timer_init,
 107         .atag_offset    = 0x100,
 108         .init_machine   = wg302v2_init,
 109 #if defined(CONFIG_PCI)
 110         .dma_zone_size  = SZ_64M,
 111 #endif
 112         .restart        = ixp4xx_restart,
 113 MACHINE_END
 114 #endif