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/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
  32 #define IOP331_UART_XTAL 33334000
  33
  34 /*
  35  * Standard IO mapping for all IOP331 based systems
  36  */
  37 static struct map_desc iop331_std_desc[] __initdata = {
  38         {       /* mem mapped registers */
  39                 .virtual        = IOP331_VIRT_MEM_BASE,
  40                 .pfn            = __phys_to_pfn(IOP331_PHYS_MEM_BASE),
  41                 .length         = 0x00002000,
  42                 .type           = MT_DEVICE
  43         }, {    /* PCI IO space */
  44                 .virtual        = IOP331_PCI_LOWER_IO_VA,
  45                 .pfn            = __phys_to_pfn(IOP331_PCI_LOWER_IO_PA),
  46                 .length         = IOP331_PCI_IO_WINDOW_SIZE,
  47                 .type           = MT_DEVICE
  48         }
  49 };
  50
  51 static struct resource iop33x_uart0_resources[] = {
  52         [0] = {
  53                 .start = IOP331_UART0_PHYS,
  54                 .end = IOP331_UART0_PHYS + 0x3f,
  55                 .flags = IORESOURCE_MEM,
  56         },
  57         [1] = {
  58                 .start = IRQ_IOP331_UART0,
  59                 .end = IRQ_IOP331_UART0,
  60                 .flags = IORESOURCE_IRQ
  61         }
  62 };
  63
  64 static struct resource iop33x_uart1_resources[] = {
  65         [0] = {
  66                 .start = IOP331_UART1_PHYS,
  67                 .end = IOP331_UART1_PHYS + 0x3f,
  68                 .flags = IORESOURCE_MEM,
  69         },
  70         [1] = {
  71                 .start = IRQ_IOP331_UART1,
  72                 .end = IRQ_IOP331_UART1,
  73                 .flags = IORESOURCE_IRQ
  74         }
  75 };
  76
  77 static struct plat_serial8250_port iop33x_uart0_data[] = {
  78         {
  79        .membase     = (char*)(IOP331_UART0_VIRT),
  80        .mapbase     = (IOP331_UART0_PHYS),
  81        .irq         = IRQ_IOP331_UART0,
  82        .uartclk     = IOP331_UART_XTAL,
  83        .regshift    = 2,
  84        .iotype      = UPIO_MEM,
  85        .flags       = UPF_SKIP_TEST,
  86         },
  87         {  },
  88 };
  89
  90 static struct plat_serial8250_port iop33x_uart1_data[] = {
  91         {
  92        .membase     = (char*)(IOP331_UART1_VIRT),
  93        .mapbase     = (IOP331_UART1_PHYS),
  94        .irq         = IRQ_IOP331_UART1,
  95        .uartclk     = IOP331_UART_XTAL,
  96        .regshift    = 2,
  97        .iotype      = UPIO_MEM,
  98        .flags       = UPF_SKIP_TEST,
  99         },
 100         {  },
 101 };
 102
 103 static struct platform_device iop33x_uart0 = {
 104        .name = "serial8250",
 105        .id = PLAT8250_DEV_PLATFORM,
 106        .dev.platform_data = iop33x_uart0_data,
 107        .num_resources = 2,
 108        .resource = iop33x_uart0_resources,
 109 };
 110
 111 static struct platform_device iop33x_uart1 = {
 112        .name = "serial8250",
 113        .id = PLAT8250_DEV_PLATFORM1,
 114        .dev.platform_data = iop33x_uart1_data,
 115        .num_resources = 2,
 116        .resource = iop33x_uart1_resources,
 117 };
 118
 119 static struct resource iop33x_i2c_0_resources[] = {
 120         [0] = {
 121                 .start = 0xfffff680,
 122                 .end = 0xfffff698,
 123                 .flags = IORESOURCE_MEM,
 124         },
 125         [1] = {
 126                 .start = IRQ_IOP331_I2C_0,
 127                 .end = IRQ_IOP331_I2C_0,
 128                 .flags = IORESOURCE_IRQ
 129         }
 130 };
 131
 132 static struct resource iop33x_i2c_1_resources[] = {
 133         [0] = {
 134                 .start = 0xfffff6a0,
 135                 .end = 0xfffff6b8,
 136                 .flags = IORESOURCE_MEM,
 137         },
 138         [1] = {
 139                 .start = IRQ_IOP331_I2C_1,
 140                 .end = IRQ_IOP331_I2C_1,
 141                 .flags = IORESOURCE_IRQ
 142         }
 143 };
 144
 145 static struct platform_device iop33x_i2c_0_controller = {
 146         .name = "IOP3xx-I2C",
 147         .id = 0,
 148         .num_resources = 2,
 149         .resource = iop33x_i2c_0_resources
 150 };
 151
 152 static struct platform_device iop33x_i2c_1_controller = {
 153         .name = "IOP3xx-I2C",
 154         .id = 1,
 155         .num_resources = 2,
 156         .resource = iop33x_i2c_1_resources
 157 };
 158
 159 static struct platform_device *iop33x_devices[] __initdata = {
 160         &iop33x_uart0,
 161         &iop33x_uart1,
 162         &iop33x_i2c_0_controller,
 163         &iop33x_i2c_1_controller
 164 };
 165
 166 void __init iop33x_init(void)
 167 {
 168         if(iop_is_331())
 169         {
 170                 platform_add_devices(iop33x_devices,
 171                                 ARRAY_SIZE(iop33x_devices));
 172         }
 173 }
 174
 175 void __init iop331_map_io(void)
 176 {
 177         iotable_init(iop331_std_desc, ARRAY_SIZE(iop331_std_desc));
 178 }
 179
 180 #ifdef CONFIG_ARCH_IOP331
 181 extern void iop331_init_irq(void);
 182 extern struct sys_timer iop331_timer;
 183 #endif
 184
 185 #ifdef CONFIG_ARCH_IQ80331
 186 extern void iq80331_map_io(void);
 187 #endif
 188
 189 #ifdef CONFIG_MACH_IQ80332
 190 extern void iq80332_map_io(void);
 191 #endif
 192
 193 #if defined(CONFIG_ARCH_IQ80331)
 194 MACHINE_START(IQ80331, "Intel IQ80331")
 195         /* Maintainer: Intel Corp. */
 196         .phys_io        = 0xfefff000,
 197         .io_pg_offst    = ((0xfffff000) >> 18) & 0xfffc, // virtual, physical
 198         .map_io         = iq80331_map_io,
 199         .init_irq       = iop331_init_irq,
 200         .timer          = &iop331_timer,
 201         .boot_params    = 0x0100,
 202         .init_machine   = iop33x_init,
 203 MACHINE_END
 204
 205 #elif defined(CONFIG_MACH_IQ80332)
 206 MACHINE_START(IQ80332, "Intel IQ80332")
 207         /* Maintainer: Intel Corp. */
 208         .phys_io        = 0xfefff000,
 209         .io_pg_offst    = ((0xfffff000) >> 18) & 0xfffc, // virtual, physical
 210         .map_io         = iq80332_map_io,
 211         .init_irq       = iop331_init_irq,
 212         .timer          = &iop331_timer,
 213         .boot_params    = 0x0100,
 214         .init_machine   = iop33x_init,
 215 MACHINE_END
 216
 217 #else
 218 #error No machine descriptor defined for this IOP3XX implementation
 219 #endif
 220
 221