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 static struct flash_platform_data wg302v2_flash_data = {
  33         .map_name       = "cfi_probe",
  34         .width          = 2,
  35 };
  36
  37 static struct resource wg302v2_flash_resource = {
  38         .flags          = IORESOURCE_MEM,
  39 };
  40
  41 static struct platform_device wg302v2_flash = {
  42         .name           = "IXP4XX-Flash",
  43         .id             = 0,
  44         .dev            = {
  45                 .platform_data = &wg302v2_flash_data,
  46         },
  47         .num_resources  = 1,
  48         .resource       = &wg302v2_flash_resource,
  49 };
  50
  51 static struct resource wg302v2_uart_resource = {
  52         .start  = IXP4XX_UART2_BASE_PHYS,
  53         .end    = IXP4XX_UART2_BASE_PHYS + 0x0fff,
  54         .flags  = IORESOURCE_MEM,
  55 };
  56
  57 static struct plat_serial8250_port wg302v2_uart_data[] = {
  58         {
  59                 .mapbase        = IXP4XX_UART2_BASE_PHYS,
  60                 .membase        = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
  61                 .irq            = IRQ_IXP4XX_UART2,
  62                 .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
  63                 .iotype         = UPIO_MEM,
  64                 .regshift       = 2,
  65                 .uartclk        = IXP4XX_UART_XTAL,
  66         },
  67         { },
  68 };
  69
  70 static struct platform_device wg302v2_uart = {
  71         .name           = "serial8250",
  72         .id             = PLAT8250_DEV_PLATFORM,
  73         .dev                    = {
  74                 .platform_data  = wg302v2_uart_data,
  75         },
  76         .num_resources  = 1,
  77         .resource       = &wg302v2_uart_resource,
  78 };
  79
  80 static struct platform_device *wg302v2_devices[] __initdata = {
  81         &wg302v2_flash,
  82         &wg302v2_uart,
  83 };
  84
  85 static void __init wg302v2_init(void)
  86 {
  87         ixp4xx_sys_init();
  88
  89         wg302v2_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
  90         wg302v2_flash_resource.end = IXP4XX_EXP_BUS_BASE(0) + SZ_32M - 1;
  91
  92         *IXP4XX_EXP_CS0 |= IXP4XX_FLASH_WRITABLE;
  93         *IXP4XX_EXP_CS1 = *IXP4XX_EXP_CS0;
  94
  95         platform_add_devices(wg302v2_devices, ARRAY_SIZE(wg302v2_devices));
  96 }
  97
  98 #ifdef CONFIG_MACH_WG302V2
  99 MACHINE_START(WG302V2, "Netgear WG302 v2 / WAG302 v2")
 100         /* Maintainer: Imre Kaloz <kaloz@openwrt.org> */
 101         .map_io         = ixp4xx_map_io,
 102         .init_early     = ixp4xx_init_early,
 103         .init_irq       = ixp4xx_init_irq,
 104         .init_time      = ixp4xx_timer_init,
 105         .atag_offset    = 0x100,
 106         .init_machine   = wg302v2_init,
 107 #if defined(CONFIG_PCI)
 108         .dma_zone_size  = SZ_64M,
 109 #endif
 110         .restart        = ixp4xx_restart,
 111 MACHINE_END
 112 #endif