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/major.h>
  16 #include <linux/fs.h>
  17 #include <linux/platform_device.h>
  18 #include <linux/serial.h>
  19 #include <linux/tty.h>
  20 #include <linux/serial_core.h>
  21
  22 #include <asm/io.h>
  23 #include <asm/pgtable.h>
  24 #include <asm/page.h>
  25 #include <asm/mach/map.h>
  26 #include <asm/setup.h>
  27 #include <asm/system.h>
  28 #include <asm/memory.h>
  29 #include <asm/hardware.h>
  30 #include <asm/mach-types.h>
  31 #include <asm/mach/arch.h>
  32
  33 #define IOP321_UART_XTAL 1843200
  34
  35 /*
  36  * Standard IO mapping for all IOP321 based systems
  37  */
  38 static struct map_desc iop321_std_desc[] __initdata = {
  39          {      /* mem mapped registers */
  40                 .virtual        = IOP321_VIRT_MEM_BASE,
  41                 .pfn            = __phys_to_pfn(IOP321_PHYS_MEM_BASE),
  42                 .length         = 0x00002000,
  43                 .type           = MT_DEVICE
  44          }, {   /* PCI IO space */
  45                 .virtual        = IOP321_PCI_LOWER_IO_VA,
  46                 .pfn            = __phys_to_pfn(IOP321_PCI_LOWER_IO_PA),
  47                 .length         = IOP321_PCI_IO_WINDOW_SIZE,
  48                 .type           = MT_DEVICE
  49          }
  50 };
  51
  52 #ifdef CONFIG_ARCH_IQ80321
  53 #define UARTBASE IQ80321_UART
  54 #define IRQ_UART IRQ_IQ80321_UART
  55 #endif
  56
  57 #ifdef CONFIG_ARCH_IQ31244
  58 #define UARTBASE IQ31244_UART
  59 #define IRQ_UART IRQ_IQ31244_UART
  60 #endif
  61
  62 static struct uart_port iop321_serial_ports[] = {
  63         {
  64                 .membase        = (char*)(UARTBASE),
  65                 .mapbase        = (UARTBASE),
  66                 .irq            = IRQ_UART,
  67                 .flags          = UPF_SKIP_TEST,
  68                 .iotype         = UPIO_MEM,
  69                 .regshift       = 0,
  70                 .uartclk        = IOP321_UART_XTAL,
  71                 .line           = 0,
  72                 .type           = PORT_16550A,
  73                 .fifosize       = 16
  74         }
  75 };
  76
  77 static struct resource iop32x_i2c_0_resources[] = {
  78         [0] = {
  79                 .start = 0xfffff680,
  80                 .end = 0xfffff698,
  81                 .flags = IORESOURCE_MEM,
  82         },
  83         [1] = {
  84                 .start = IRQ_IOP321_I2C_0,
  85                 .end = IRQ_IOP321_I2C_0,
  86                 .flags = IORESOURCE_IRQ
  87         }
  88 };
  89
  90 static struct resource iop32x_i2c_1_resources[] = {
  91         [0] = {
  92                 .start = 0xfffff6a0,
  93                 .end = 0xfffff6b8,
  94                 .flags = IORESOURCE_MEM,
  95         },
  96         [1] = {
  97                 .start = IRQ_IOP321_I2C_1,
  98                 .end = IRQ_IOP321_I2C_1,
  99                 .flags = IORESOURCE_IRQ
 100         }
 101 };
 102
 103 static struct platform_device iop32x_i2c_0_controller = {
 104         .name = "IOP3xx-I2C",
 105         .id = 0,
 106         .num_resources = 2,
 107         .resource = iop32x_i2c_0_resources
 108 };
 109
 110 static struct platform_device iop32x_i2c_1_controller = {
 111         .name = "IOP3xx-I2C",
 112         .id = 1,
 113         .num_resources = 2,
 114         .resource = iop32x_i2c_1_resources
 115 };
 116
 117 static struct platform_device *iop32x_devices[] __initdata = {
 118         &iop32x_i2c_0_controller,
 119         &iop32x_i2c_1_controller
 120 };
 121
 122 void __init iop32x_init(void)
 123 {
 124         if(iop_is_321())
 125         {
 126                 platform_add_devices(iop32x_devices,
 127                                 ARRAY_SIZE(iop32x_devices));
 128         }
 129 }
 130
 131 void __init iop321_map_io(void)
 132 {
 133         iotable_init(iop321_std_desc, ARRAY_SIZE(iop321_std_desc));
 134         early_serial_setup(&iop321_serial_ports[0]);
 135 }
 136
 137 #ifdef CONFIG_ARCH_IQ80321
 138 extern void iq80321_map_io(void);
 139 extern struct sys_timer iop321_timer;
 140 extern void iop321_init_time(void);
 141 #endif
 142
 143 #ifdef CONFIG_ARCH_IQ31244
 144 extern void iq31244_map_io(void);
 145 extern struct sys_timer iop321_timer;
 146 extern void iop321_init_time(void);
 147 #endif
 148
 149 #if defined(CONFIG_ARCH_IQ80321)
 150 MACHINE_START(IQ80321, "Intel IQ80321")
 151         /* Maintainer: Intel Corporation */
 152         .phys_io        = IQ80321_UART,
 153         .io_pg_offst    = ((IQ80321_UART) >> 18) & 0xfffc,
 154         .map_io         = iq80321_map_io,
 155         .init_irq       = iop321_init_irq,
 156         .timer          = &iop321_timer,
 157         .boot_params    = 0xa0000100,
 158         .init_machine   = iop32x_init,
 159 MACHINE_END
 160 #elif defined(CONFIG_ARCH_IQ31244)
 161 MACHINE_START(IQ31244, "Intel IQ31244")
 162         /* Maintainer: Intel Corp. */
 163         .phys_io        = IQ31244_UART,
 164         .io_pg_offst    = ((IQ31244_UART) >> 18) & 0xfffc,
 165         .map_io         = iq31244_map_io,
 166         .init_irq       = iop321_init_irq,
 167         .timer          = &iop321_timer,
 168         .boot_params    = 0xa0000100,
 169         .init_machine   = iop32x_init,
 170 MACHINE_END
 171 #else
 172 #error No machine descriptor defined for this IOP3XX implementation
 173 #endif