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/device.h>
  19 #include <linux/serial.h>
  20 #include <linux/tty.h>
  21 #include <linux/serial_core.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 uart_port iop331_serial_ports[] = {
  54         {
  55                 .membase        = (char*)(IOP331_UART0_VIRT),
  56                 .mapbase        = (IOP331_UART0_PHYS),
  57                 .irq            = IRQ_IOP331_UART0,
  58                 .flags          = UPF_SKIP_TEST,
  59                 .iotype         = UPIO_MEM,
  60                 .regshift       = 2,
  61                 .uartclk        = IOP331_UART_XTAL,
  62                 .line           = 0,
  63                 .type           = PORT_XSCALE,
  64                 .fifosize       = 32
  65         } , {
  66                 .membase        = (char*)(IOP331_UART1_VIRT),
  67                 .mapbase        = (IOP331_UART1_PHYS),
  68                 .irq            = IRQ_IOP331_UART1,
  69                 .flags          = UPF_SKIP_TEST,
  70                 .iotype         = UPIO_MEM,
  71                 .regshift       = 2,
  72                 .uartclk        = IOP331_UART_XTAL,
  73                 .line           = 1,
  74                 .type           = PORT_XSCALE,
  75                 .fifosize       = 32
  76         }
  77 };
  78
  79 static struct resource iop33x_i2c_0_resources[] = {
  80         [0] = {
  81                 .start = 0xfffff680,
  82                 .end = 0xfffff698,
  83                 .flags = IORESOURCE_MEM,
  84         },
  85         [1] = {
  86                 .start = IRQ_IOP331_I2C_0,
  87                 .end = IRQ_IOP331_I2C_0,
  88                 .flags = IORESOURCE_IRQ
  89         }
  90 };
  91
  92 static struct resource iop33x_i2c_1_resources[] = {
  93         [0] = {
  94                 .start = 0xfffff6a0,
  95                 .end = 0xfffff6b8,
  96                 .flags = IORESOURCE_MEM,
  97         },
  98         [1] = {
  99                 .start = IRQ_IOP331_I2C_1,
 100                 .end = IRQ_IOP331_I2C_1,
 101                 .flags = IORESOURCE_IRQ
 102         }
 103 };
 104
 105 static struct platform_device iop33x_i2c_0_controller = {
 106         .name = "IOP3xx-I2C",
 107         .id = 0,
 108         .num_resources = 2,
 109         .resource = iop33x_i2c_0_resources
 110 };
 111
 112 static struct platform_device iop33x_i2c_1_controller = {
 113         .name = "IOP3xx-I2C",
 114         .id = 1,
 115         .num_resources = 2,
 116         .resource = iop33x_i2c_1_resources
 117 };
 118
 119 static struct platform_device *iop33x_devices[] __initdata = {
 120         &iop33x_i2c_0_controller,
 121         &iop33x_i2c_1_controller
 122 };
 123
 124 void __init iop33x_init(void)
 125 {
 126         if(iop_is_331())
 127         {
 128                 platform_add_devices(iop33x_devices,
 129                                 ARRAY_SIZE(iop33x_devices));
 130         }
 131 }
 132
 133 void __init iop331_map_io(void)
 134 {
 135         iotable_init(iop331_std_desc, ARRAY_SIZE(iop331_std_desc));
 136         early_serial_setup(&iop331_serial_ports[0]);
 137         early_serial_setup(&iop331_serial_ports[1]);
 138 }
 139
 140 #ifdef CONFIG_ARCH_IOP331
 141 extern void iop331_init_irq(void);
 142 extern struct sys_timer iop331_timer;
 143 #endif
 144
 145 #ifdef CONFIG_ARCH_IQ80331
 146 extern void iq80331_map_io(void);
 147 #endif
 148
 149 #ifdef CONFIG_MACH_IQ80332
 150 extern void iq80332_map_io(void);
 151 #endif
 152
 153 #if defined(CONFIG_ARCH_IQ80331)
 154 MACHINE_START(IQ80331, "Intel IQ80331")
 155         /* Maintainer: Intel Corp. */
 156         .phys_ram       = PHYS_OFFSET,
 157         .phys_io        = 0xfefff000,
 158         .io_pg_offst    = ((0xfffff000) >> 18) & 0xfffc, // virtual, physical
 159         .map_io         = iq80331_map_io,
 160         .init_irq       = iop331_init_irq,
 161         .timer          = &iop331_timer,
 162         .boot_params    = 0x0100,
 163         .init_machine   = iop33x_init,
 164 MACHINE_END
 165
 166 #elif defined(CONFIG_MACH_IQ80332)
 167 MACHINE_START(IQ80332, "Intel IQ80332")
 168         /* Maintainer: Intel Corp. */
 169         .phys_ram       = PHYS_OFFSET,
 170         .phys_io        = 0xfefff000,
 171         .io_pg_offst    = ((0xfffff000) >> 18) & 0xfffc, // virtual, physical
 172         .map_io         = iq80332_map_io,
 173         .init_irq       = iop331_init_irq,
 174         .timer          = &iop331_timer,
 175         .boot_params    = 0x0100,
 176         .init_machine   = iop33x_init,
 177 MACHINE_END
 178
 179 #else
 180 #error No machine descriptor defined for this IOP3XX implementation
 181 #endif
 182
 183