arch/arm/mach-iop33x/setup.c

   1 /*
   2  * linux/arch/arm/mach-iop33x/setup.c
   3  *
   4  * Author: Dave Jiang (dave.jiang@intel.com)
   5  * Copyright (C) 2004 Intel Corporation.
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License version 2 as
   9  * published by the Free Software Foundation.
  10  *
  11  */
  12 #include <linux/mm.h>
  13 #include <linux/init.h>
  14 #include <linux/major.h>
  15 #include <linux/fs.h>
  16 #include <linux/platform_device.h>
  17 #include <linux/serial.h>
  18 #include <linux/tty.h>
  19 #include <linux/serial_8250.h>
  20
  21 #include <asm/io.h>
  22 #include <asm/pgtable.h>
  23 #include <asm/page.h>
  24 #include <asm/mach/map.h>
  25 #include <asm/setup.h>
  26 #include <asm/system.h>
  27 #include <asm/memory.h>
  28 #include <asm/hardware.h>
  29 #include <asm/mach-types.h>
  30 #include <asm/mach/arch.h>
  31 #include <asm/mach/time.h>
  32 #include <asm/hardware/iop3xx.h>
  33
  34 #define IOP331_UART_XTAL 33334000
  35
  36 static struct resource iop33x_uart0_resources[] = {
  37         [0] = {
  38                 .start = IOP331_UART0_PHYS,
  39                 .end = IOP331_UART0_PHYS + 0x3f,
  40                 .flags = IORESOURCE_MEM,
  41         },
  42         [1] = {
  43                 .start = IRQ_IOP331_UART0,
  44                 .end = IRQ_IOP331_UART0,
  45                 .flags = IORESOURCE_IRQ
  46         }
  47 };
  48
  49 static struct resource iop33x_uart1_resources[] = {
  50         [0] = {
  51                 .start = IOP331_UART1_PHYS,
  52                 .end = IOP331_UART1_PHYS + 0x3f,
  53                 .flags = IORESOURCE_MEM,
  54         },
  55         [1] = {
  56                 .start = IRQ_IOP331_UART1,
  57                 .end = IRQ_IOP331_UART1,
  58                 .flags = IORESOURCE_IRQ
  59         }
  60 };
  61
  62 static struct plat_serial8250_port iop33x_uart0_data[] = {
  63         {
  64        .membase     = (char*)(IOP331_UART0_VIRT),
  65        .mapbase     = (IOP331_UART0_PHYS),
  66        .irq         = IRQ_IOP331_UART0,
  67        .uartclk     = IOP331_UART_XTAL,
  68        .regshift    = 2,
  69        .iotype      = UPIO_MEM,
  70        .flags       = UPF_SKIP_TEST,
  71         },
  72         {  },
  73 };
  74
  75 static struct plat_serial8250_port iop33x_uart1_data[] = {
  76         {
  77        .membase     = (char*)(IOP331_UART1_VIRT),
  78        .mapbase     = (IOP331_UART1_PHYS),
  79        .irq         = IRQ_IOP331_UART1,
  80        .uartclk     = IOP331_UART_XTAL,
  81        .regshift    = 2,
  82        .iotype      = UPIO_MEM,
  83        .flags       = UPF_SKIP_TEST,
  84         },
  85         {  },
  86 };
  87
  88 static struct platform_device iop33x_uart0 = {
  89        .name = "serial8250",
  90        .id = PLAT8250_DEV_PLATFORM,
  91        .dev.platform_data = iop33x_uart0_data,
  92        .num_resources = 2,
  93        .resource = iop33x_uart0_resources,
  94 };
  95
  96 static struct platform_device iop33x_uart1 = {
  97        .name = "serial8250",
  98        .id = PLAT8250_DEV_PLATFORM1,
  99        .dev.platform_data = iop33x_uart1_data,
 100        .num_resources = 2,
 101        .resource = iop33x_uart1_resources,
 102 };
 103
 104 static struct platform_device *iop33x_devices[] __initdata = {
 105         &iop33x_uart0,
 106         &iop33x_uart1,
 107 };
 108
 109 void __init iop33x_init(void)
 110 {
 111         if(iop_is_331())
 112         {
 113                 platform_add_devices(iop33x_devices,
 114                                 ARRAY_SIZE(iop33x_devices));
 115         }
 116         platform_device_register(&iop3xx_i2c0_device);
 117         platform_device_register(&iop3xx_i2c1_device);
 118 }
 119
 120 #ifdef CONFIG_ARCH_IOP33X
 121 extern void iop331_init_irq(void);
 122 #endif
 123
 124 static void __init iop3xx_timer_init(void)
 125 {
 126         iop3xx_init_time(IOP331_TICK_RATE);
 127 }
 128
 129 struct sys_timer iop331_timer = {
 130         .init           = iop3xx_timer_init,
 131         .offset         = iop3xx_gettimeoffset,
 132 };
 133
 134 #if defined(CONFIG_ARCH_IQ80331)
 135 MACHINE_START(IQ80331, "Intel IQ80331")
 136         /* Maintainer: Intel Corp. */
 137         .phys_io        = 0xfefff000,
 138         .io_pg_offst    = ((0xfffff000) >> 18) & 0xfffc, // virtual, physical
 139         .map_io         = iop3xx_map_io,
 140         .init_irq       = iop331_init_irq,
 141         .timer          = &iop331_timer,
 142         .boot_params    = 0x0100,
 143         .init_machine   = iop33x_init,
 144 MACHINE_END
 145
 146 #elif defined(CONFIG_MACH_IQ80332)
 147 MACHINE_START(IQ80332, "Intel IQ80332")
 148         /* Maintainer: Intel Corp. */
 149         .phys_io        = 0xfefff000,
 150         .io_pg_offst    = ((0xfffff000) >> 18) & 0xfffc, // virtual, physical
 151         .map_io         = iop3xx_map_io,
 152         .init_irq       = iop331_init_irq,
 153         .timer          = &iop331_timer,
 154         .boot_params    = 0x0100,
 155         .init_machine   = iop33x_init,
 156 MACHINE_END
 157
 158 #else
 159 #error No machine descriptor defined for this IOP3XX implementation
 160 #endif
 161
 162