arch/arm/mach-iop3xx/iop331-setup.c

   1 /*
   2  * linux/arch/arm/mach-iop3xx/iop331-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/config.h>
  15 #include <linux/init.h>
  16 #include <linux/major.h>
  17 #include <linux/fs.h>
  18 #include <linux/platform_device.h>
  19 #include <linux/serial.h>
  20 #include <linux/tty.h>
  21 #include <linux/serial_8250.h>
  22
  23 #include <asm/io.h>
  24 #include <asm/pgtable.h>
  25 #include <asm/page.h>
  26 #include <asm/mach/map.h>
  27 #include <asm/setup.h>
  28 #include <asm/system.h>
  29 #include <asm/memory.h>
  30 #include <asm/hardware.h>
  31 #include <asm/mach-types.h>
  32 #include <asm/mach/arch.h>
  33
  34 #define IOP331_UART_XTAL 33334000
  35
  36 /*
  37  * Standard IO mapping for all IOP331 based systems
  38  */
  39 static struct map_desc iop331_std_desc[] __initdata = {
  40         {       /* mem mapped registers */
  41                 .virtual        = IOP331_VIRT_MEM_BASE,
  42                 .pfn            = __phys_to_pfn(IOP331_PHYS_MEM_BASE),
  43                 .length         = 0x00002000,
  44                 .type           = MT_DEVICE
  45         }, {    /* PCI IO space */
  46                 .virtual        = IOP331_PCI_LOWER_IO_VA,
  47                 .pfn            = __phys_to_pfn(IOP331_PCI_LOWER_IO_PA),
  48                 .length         = IOP331_PCI_IO_WINDOW_SIZE,
  49                 .type           = MT_DEVICE
  50         }
  51 };
  52
  53 static struct resource iop33x_uart0_resources[] = {
  54         [0] = {
  55                 .start = IOP331_UART0_PHYS,
  56                 .end = IOP331_UART0_PHYS + 0x3f,
  57                 .flags = IORESOURCE_MEM,
  58         },
  59         [1] = {
  60                 .start = IRQ_IOP331_UART0,
  61                 .end = IRQ_IOP331_UART0,
  62                 .flags = IORESOURCE_IRQ
  63         }
  64 };
  65
  66 static struct resource iop33x_uart1_resources[] = {
  67         [0] = {
  68                 .start = IOP331_UART1_PHYS,
  69                 .end = IOP331_UART1_PHYS + 0x3f,
  70                 .flags = IORESOURCE_MEM,
  71         },
  72         [1] = {
  73                 .start = IRQ_IOP331_UART1,
  74                 .end = IRQ_IOP331_UART1,
  75                 .flags = IORESOURCE_IRQ
  76         }
  77 };
  78
  79 static struct plat_serial8250_port iop33x_uart0_data[] = {
  80         {
  81        .membase     = (char*)(IOP331_UART0_VIRT),
  82        .mapbase     = (IOP331_UART0_PHYS),
  83        .irq         = IRQ_IOP331_UART0,
  84        .uartclk     = IOP331_UART_XTAL,
  85        .regshift    = 2,
  86        .iotype      = UPIO_MEM,
  87        .flags       = UPF_SKIP_TEST,
  88         },
  89         {  },
  90 };
  91
  92 static struct plat_serial8250_port iop33x_uart1_data[] = {
  93         {
  94        .membase     = (char*)(IOP331_UART1_VIRT),
  95        .mapbase     = (IOP331_UART1_PHYS),
  96        .irq         = IRQ_IOP331_UART1,
  97        .uartclk     = IOP331_UART_XTAL,
  98        .regshift    = 2,
  99        .iotype      = UPIO_MEM,
 100        .flags       = UPF_SKIP_TEST,
 101         },
 102         {  },
 103 };
 104
 105 static struct platform_device iop33x_uart0 = {
 106        .name = "serial8250",
 107        .id = 0,
 108        .dev.platform_data = iop33x_uart0_data,
 109        .num_resources = 2,
 110        .resource = iop33x_uart0_resources,
 111 };
 112
 113 static struct platform_device iop33x_uart1 = {
 114        .name = "serial8250",
 115        .id = 1,
 116        .dev.platform_data = iop33x_uart1_data,
 117        .num_resources = 2,
 118        .resource = iop33x_uart1_resources,
 119 };
 120
 121 static struct resource iop33x_i2c_0_resources[] = {
 122         [0] = {
 123                 .start = 0xfffff680,
 124                 .end = 0xfffff698,
 125                 .flags = IORESOURCE_MEM,
 126         },
 127         [1] = {
 128                 .start = IRQ_IOP331_I2C_0,
 129                 .end = IRQ_IOP331_I2C_0,
 130                 .flags = IORESOURCE_IRQ
 131         }
 132 };
 133
 134 static struct resource iop33x_i2c_1_resources[] = {
 135         [0] = {
 136                 .start = 0xfffff6a0,
 137                 .end = 0xfffff6b8,
 138                 .flags = IORESOURCE_MEM,
 139         },
 140         [1] = {
 141                 .start = IRQ_IOP331_I2C_1,
 142                 .end = IRQ_IOP331_I2C_1,
 143                 .flags = IORESOURCE_IRQ
 144         }
 145 };
 146
 147 static struct platform_device iop33x_i2c_0_controller = {
 148         .name = "IOP3xx-I2C",
 149         .id = 0,
 150         .num_resources = 2,
 151         .resource = iop33x_i2c_0_resources
 152 };
 153
 154 static struct platform_device iop33x_i2c_1_controller = {
 155         .name = "IOP3xx-I2C",
 156         .id = 1,
 157         .num_resources = 2,
 158         .resource = iop33x_i2c_1_resources
 159 };
 160
 161 static struct platform_device *iop33x_devices[] __initdata = {
 162         &iop33x_uart0,
 163         &iop33x_uart1,
 164         &iop33x_i2c_0_controller,
 165         &iop33x_i2c_1_controller
 166 };
 167
 168 void __init iop33x_init(void)
 169 {
 170         if(iop_is_331())
 171         {
 172                 platform_add_devices(iop33x_devices,
 173                                 ARRAY_SIZE(iop33x_devices));
 174         }
 175 }
 176
 177 void __init iop331_map_io(void)
 178 {
 179         iotable_init(iop331_std_desc, ARRAY_SIZE(iop331_std_desc));
 180 }
 181
 182 #ifdef CONFIG_ARCH_IOP331
 183 extern void iop331_init_irq(void);
 184 extern struct sys_timer iop331_timer;
 185 #endif
 186
 187 #ifdef CONFIG_ARCH_IQ80331
 188 extern void iq80331_map_io(void);
 189 #endif
 190
 191 #ifdef CONFIG_MACH_IQ80332
 192 extern void iq80332_map_io(void);
 193 #endif
 194
 195 #if defined(CONFIG_ARCH_IQ80331)
 196 MACHINE_START(IQ80331, "Intel IQ80331")
 197         /* Maintainer: Intel Corp. */
 198         .phys_ram       = PHYS_OFFSET,
 199         .phys_io        = 0xfefff000,
 200         .io_pg_offst    = ((0xfffff000) >> 18) & 0xfffc, // virtual, physical
 201         .map_io         = iq80331_map_io,
 202         .init_irq       = iop331_init_irq,
 203         .timer          = &iop331_timer,
 204         .boot_params    = 0x0100,
 205         .init_machine   = iop33x_init,
 206 MACHINE_END
 207
 208 #elif defined(CONFIG_MACH_IQ80332)
 209 MACHINE_START(IQ80332, "Intel IQ80332")
 210         /* Maintainer: Intel Corp. */
 211         .phys_ram       = PHYS_OFFSET,
 212         .phys_io        = 0xfefff000,
 213         .io_pg_offst    = ((0xfffff000) >> 18) & 0xfffc, // virtual, physical
 214         .map_io         = iq80332_map_io,
 215         .init_irq       = iop331_init_irq,
 216         .timer          = &iop331_timer,
 217         .boot_params    = 0x0100,
 218         .init_machine   = iop33x_init,
 219 MACHINE_END
 220
 221 #else
 222 #error No machine descriptor defined for this IOP3XX implementation
 223 #endif
 224
 225