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  /* virtual     physical      length      type */
  41
  42  /* mem mapped registers */
  43  { IOP331_VIRT_MEM_BASE,  IOP331_PHYS_MEM_BASE,   0x00002000,  MT_DEVICE },
  44
  45  /* PCI IO space */
  46  { IOP331_PCI_LOWER_IO_VA,  IOP331_PCI_LOWER_IO_PA,   IOP331_PCI_IO_WINDOW_SIZE,  MT_DEVICE }
  47 };
  48
  49 static struct uart_port iop331_serial_ports[] = {
  50         {
  51                 .membase        = (char*)(IOP331_UART0_VIRT),
  52                 .mapbase        = (IOP331_UART0_PHYS),
  53                 .irq            = IRQ_IOP331_UART0,
  54                 .flags          = UPF_SKIP_TEST,
  55                 .iotype         = UPIO_MEM,
  56                 .regshift       = 2,
  57                 .uartclk        = IOP331_UART_XTAL,
  58                 .line           = 0,
  59                 .type           = PORT_XSCALE,
  60                 .fifosize       = 32
  61         } , {
  62                 .membase        = (char*)(IOP331_UART1_VIRT),
  63                 .mapbase        = (IOP331_UART1_PHYS),
  64                 .irq            = IRQ_IOP331_UART1,
  65                 .flags          = UPF_SKIP_TEST,
  66                 .iotype         = UPIO_MEM,
  67                 .regshift       = 2,
  68                 .uartclk        = IOP331_UART_XTAL,
  69                 .line           = 1,
  70                 .type           = PORT_XSCALE,
  71                 .fifosize       = 32
  72         }
  73 };
  74
  75 static struct resource iop33x_i2c_0_resources[] = {
  76         [0] = {
  77                 .start = 0xfffff680,
  78                 .end = 0xfffff698,
  79                 .flags = IORESOURCE_MEM,
  80         },
  81         [1] = {
  82                 .start = IRQ_IOP331_I2C_0,
  83                 .end = IRQ_IOP331_I2C_0,
  84                 .flags = IORESOURCE_IRQ
  85         }
  86 };
  87
  88 static struct resource iop33x_i2c_1_resources[] = {
  89         [0] = {
  90                 .start = 0xfffff6a0,
  91                 .end = 0xfffff6b8,
  92                 .flags = IORESOURCE_MEM,
  93         },
  94         [1] = {
  95                 .start = IRQ_IOP331_I2C_1,
  96                 .end = IRQ_IOP331_I2C_1,
  97                 .flags = IORESOURCE_IRQ
  98         }
  99 };
 100
 101 static struct platform_device iop33x_i2c_0_controller = {
 102         .name = "IOP3xx-I2C",
 103         .id = 0,
 104         .num_resources = 2,
 105         .resource = iop33x_i2c_0_resources
 106 };
 107
 108 static struct platform_device iop33x_i2c_1_controller = {
 109         .name = "IOP3xx-I2C",
 110         .id = 1,
 111         .num_resources = 2,
 112         .resource = iop33x_i2c_1_resources
 113 };
 114
 115 static struct platform_device *iop33x_devices[] __initdata = {
 116         &iop33x_i2c_0_controller,
 117         &iop33x_i2c_1_controller
 118 };
 119
 120 void __init iop33x_init(void)
 121 {
 122         if(iop_is_331())
 123         {
 124                 platform_add_devices(iop33x_devices,
 125                                 ARRAY_SIZE(iop33x_devices));
 126         }
 127 }
 128
 129 void __init iop331_map_io(void)
 130 {
 131         iotable_init(iop331_std_desc, ARRAY_SIZE(iop331_std_desc));
 132         early_serial_setup(&iop331_serial_ports[0]);
 133         early_serial_setup(&iop331_serial_ports[1]);
 134 }
 135
 136 #ifdef CONFIG_ARCH_IOP331
 137 extern void iop331_init_irq(void);
 138 extern struct sys_timer iop331_timer;
 139 #endif
 140
 141 #ifdef CONFIG_ARCH_IQ80331
 142 extern void iq80331_map_io(void);
 143 #endif
 144
 145 #ifdef CONFIG_MACH_IQ80332
 146 extern void iq80332_map_io(void);
 147 #endif
 148
 149 #if defined(CONFIG_ARCH_IQ80331)
 150 MACHINE_START(IQ80331, "Intel IQ80331")
 151         /* Maintainer: Intel Corp. */
 152         .phys_ram       = PHYS_OFFSET,
 153         .phys_io        = 0xfefff000,
 154         .io_pg_offst    = ((0xfffff000) >> 18) & 0xfffc, // virtual, physical
 155         .map_io         = iq80331_map_io,
 156         .init_irq       = iop331_init_irq,
 157         .timer          = &iop331_timer,
 158         .boot_params    = 0x0100,
 159         .init_machine   = iop33x_init,
 160 MACHINE_END
 161
 162 #elif defined(CONFIG_MACH_IQ80332)
 163 MACHINE_START(IQ80332, "Intel IQ80332")
 164         /* Maintainer: Intel Corp. */
 165         .phys_ram       = PHYS_OFFSET,
 166         .phys_io        = 0xfefff000,
 167         .io_pg_offst    = ((0xfffff000) >> 18) & 0xfffc, // virtual, physical
 168         .map_io         = iq80332_map_io,
 169         .init_irq       = iop331_init_irq,
 170         .timer          = &iop331_timer,
 171         .boot_params    = 0x0100,
 172         .init_machine   = iop33x_init,
 173 MACHINE_END
 174
 175 #else
 176 #error No machine descriptor defined for this IOP3XX implementation
 177 #endif
 178
 179