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/major.h>
  16 #include <linux/fs.h>
  17 #include <linux/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 IOP331_UART_XTAL 33334000
  34
  35 /*
  36  * Standard IO mapping for all IOP331 based systems
  37  */
  38 static struct map_desc iop331_std_desc[] __initdata = {
  39  /* virtual     physical      length      type */
  40
  41  /* mem mapped registers */
  42  { IOP331_VIRT_MEM_BASE,  IOP331_PHYS_MEM_BASE,   0x00002000,  MT_DEVICE },
  43
  44  /* PCI IO space */
  45  { 0xfe000000,  0x90000000,   0x00020000,  MT_DEVICE }
  46 };
  47
  48 static struct uart_port iop331_serial_ports[] = {
  49         {
  50                 .membase        = (char*)(IQ80331_UART0_VIRT),
  51                 .mapbase        = (IQ80331_UART0_PHYS),
  52                 .irq            = IRQ_IOP331_UART0,
  53                 .flags          = UPF_SKIP_TEST,
  54                 .iotype         = UPIO_MEM,
  55                 .regshift       = 2,
  56                 .uartclk        = IOP331_UART_XTAL,
  57                 .line           = 0,
  58                 .type           = PORT_XSCALE,
  59                 .fifosize       = 32
  60         } , {
  61                 .membase        = (char*)(IQ80331_UART1_VIRT),
  62                 .mapbase        = (IQ80331_UART1_PHYS),
  63                 .irq            = IRQ_IOP331_UART1,
  64                 .flags          = UPF_SKIP_TEST,
  65                 .iotype         = UPIO_MEM,
  66                 .regshift       = 2,
  67                 .uartclk        = IOP331_UART_XTAL,
  68                 .line           = 1,
  69                 .type           = PORT_XSCALE,
  70                 .fifosize       = 32
  71         }
  72 };
  73
  74 void __init iop331_map_io(void)
  75 {
  76         iotable_init(iop331_std_desc, ARRAY_SIZE(iop331_std_desc));
  77         early_serial_setup(&iop331_serial_ports[0]);
  78         early_serial_setup(&iop331_serial_ports[1]);
  79 }
  80
  81 #ifdef CONFIG_ARCH_IQ80331
  82 extern void iop331_init_irq(void);
  83 extern struct sys_timer iop331_timer;
  84 extern void iq80331_map_io(void);
  85 #endif
  86
  87 #if defined(CONFIG_ARCH_IQ80331)
  88 MACHINE_START(IQ80331, "Intel IQ80331")
  89     MAINTAINER("Intel Corp.")
  90     BOOT_MEM(PHYS_OFFSET, 0xfefff000, 0xfffff000) // virtual, physical
  91     //BOOT_MEM(PHYS_OFFSET, IQ80331_UART0_VIRT, IQ80331_UART0_PHYS)
  92     MAPIO(iq80331_map_io)
  93     INITIRQ(iop331_init_irq)
  94     .timer              = &iop331_timer,
  95     BOOT_PARAMS(0x0100)
  96 MACHINE_END
  97 #else
  98 #error No machine descriptor defined for this IOP3XX implementation
  99 #endif
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