arch/arm/mach-iop3xx/iop321-setup.c

   1 /*
   2  * linux/arch/arm/mach-iop3xx/iop321-setup.c
   3  *
   4  * Author: Nicolas Pitre <nico@cam.org>
   5  * Copyright (C) 2001 MontaVista Software, Inc.
   6  * Copyright (C) 2004 Intel Corporation.
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License version 2 as
  10  * published by the Free Software Foundation.
  11  *
  12  */
  13 #include <linux/mm.h>
  14 #include <linux/init.h>
  15 #include <linux/config.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_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 IOP321_UART_XTAL 1843200
  35
  36 /*
  37  * Standard IO mapping for all IOP321 based systems
  38  */
  39 static struct map_desc iop321_std_desc[] __initdata = {
  40          {      /* mem mapped registers */
  41                 .virtual        = IOP321_VIRT_MEM_BASE,
  42                 .pfn            = __phys_to_pfn(IOP321_PHYS_MEM_BASE),
  43                 .length         = 0x00002000,
  44                 .type           = MT_DEVICE
  45          }, {   /* PCI IO space */
  46                 .virtual        = IOP321_PCI_LOWER_IO_VA,
  47                 .pfn            = __phys_to_pfn(IOP321_PCI_LOWER_IO_PA),
  48                 .length         = IOP321_PCI_IO_WINDOW_SIZE,
  49                 .type           = MT_DEVICE
  50          }
  51 };
  52
  53 #ifdef CONFIG_ARCH_IQ80321
  54 #define UARTBASE IQ80321_UART
  55 #define IRQ_UART IRQ_IQ80321_UART
  56 #endif
  57
  58 #ifdef CONFIG_ARCH_IQ31244
  59 #define UARTBASE IQ31244_UART
  60 #define IRQ_UART IRQ_IQ31244_UART
  61 #endif
  62
  63 static struct uart_port iop321_serial_ports[] = {
  64         {
  65                 .membase        = (char*)(UARTBASE),
  66                 .mapbase        = (UARTBASE),
  67                 .irq            = IRQ_UART,
  68                 .flags          = UPF_SKIP_TEST,
  69                 .iotype         = UPIO_MEM,
  70                 .regshift       = 0,
  71                 .uartclk        = IOP321_UART_XTAL,
  72                 .line           = 0,
  73                 .type           = PORT_16550A,
  74                 .fifosize       = 16
  75         }
  76 };
  77
  78 static struct resource iop32x_i2c_0_resources[] = {
  79         [0] = {
  80                 .start = 0xfffff680,
  81                 .end = 0xfffff698,
  82                 .flags = IORESOURCE_MEM,
  83         },
  84         [1] = {
  85                 .start = IRQ_IOP321_I2C_0,
  86                 .end = IRQ_IOP321_I2C_0,
  87                 .flags = IORESOURCE_IRQ
  88         }
  89 };
  90
  91 static struct resource iop32x_i2c_1_resources[] = {
  92         [0] = {
  93                 .start = 0xfffff6a0,
  94                 .end = 0xfffff6b8,
  95                 .flags = IORESOURCE_MEM,
  96         },
  97         [1] = {
  98                 .start = IRQ_IOP321_I2C_1,
  99                 .end = IRQ_IOP321_I2C_1,
 100                 .flags = IORESOURCE_IRQ
 101         }
 102 };
 103
 104 static struct platform_device iop32x_i2c_0_controller = {
 105         .name = "IOP3xx-I2C",
 106         .id = 0,
 107         .num_resources = 2,
 108         .resource = iop32x_i2c_0_resources
 109 };
 110
 111 static struct platform_device iop32x_i2c_1_controller = {
 112         .name = "IOP3xx-I2C",
 113         .id = 1,
 114         .num_resources = 2,
 115         .resource = iop32x_i2c_1_resources
 116 };
 117
 118 static struct platform_device *iop32x_devices[] __initdata = {
 119         &iop32x_i2c_0_controller,
 120         &iop32x_i2c_1_controller
 121 };
 122
 123 void __init iop32x_init(void)
 124 {
 125         if(iop_is_321())
 126         {
 127                 platform_add_devices(iop32x_devices,
 128                                 ARRAY_SIZE(iop32x_devices));
 129         }
 130 }
 131
 132 void __init iop321_map_io(void)
 133 {
 134         iotable_init(iop321_std_desc, ARRAY_SIZE(iop321_std_desc));
 135         early_serial_setup(&iop321_serial_ports[0]);
 136 }
 137
 138 #ifdef CONFIG_ARCH_IQ80321
 139 extern void iq80321_map_io(void);
 140 extern struct sys_timer iop321_timer;
 141 extern void iop321_init_time(void);
 142 #endif
 143
 144 #ifdef CONFIG_ARCH_IQ31244
 145 extern void iq31244_map_io(void);
 146 extern struct sys_timer iop321_timer;
 147 extern void iop321_init_time(void);
 148 #endif
 149
 150 #if defined(CONFIG_ARCH_IQ80321)
 151 MACHINE_START(IQ80321, "Intel IQ80321")
 152         /* Maintainer: Intel Corporation */
 153         .phys_io        = IQ80321_UART,
 154         .io_pg_offst    = ((IQ80321_UART) >> 18) & 0xfffc,
 155         .map_io         = iq80321_map_io,
 156         .init_irq       = iop321_init_irq,
 157         .timer          = &iop321_timer,
 158         .boot_params    = 0xa0000100,
 159         .init_machine   = iop32x_init,
 160 MACHINE_END
 161 #elif defined(CONFIG_ARCH_IQ31244)
 162 MACHINE_START(IQ31244, "Intel IQ31244")
 163         /* Maintainer: Intel Corp. */
 164         .phys_io        = IQ31244_UART,
 165         .io_pg_offst    = ((IQ31244_UART) >> 18) & 0xfffc,
 166         .map_io         = iq31244_map_io,
 167         .init_irq       = iop321_init_irq,
 168         .timer          = &iop321_timer,
 169         .boot_params    = 0xa0000100,
 170         .init_machine   = iop32x_init,
 171 MACHINE_END
 172 #else
 173 #error No machine descriptor defined for this IOP3XX implementation
 174 #endif