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iop321-setup.c

/*
 * linux/arch/arm/mach-iop3xx/iop321-setup.c
 *
 * Author: Nicolas Pitre <nico@cam.org>
 * Copyright (C) 2001 MontaVista Software, Inc.
 * Copyright (C) 2004 Intel Corporation.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 */
#include <linux/mm.h>
#include <linux/init.h>
#include <linux/major.h>
#include <linux/fs.h>
#include <linux/platform_device.h>
#include <linux/serial.h>
#include <linux/tty.h>
#include <linux/serial_core.h>

#include <asm/io.h>
#include <asm/pgtable.h>
#include <asm/page.h>
#include <asm/mach/map.h>
#include <asm/setup.h>
#include <asm/system.h>
#include <asm/memory.h>
#include <asm/hardware.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>

#define IOP321_UART_XTAL 1843200

/*
 * Standard IO mapping for all IOP321 based systems
 */
static struct map_desc iop321_std_desc[] __initdata = {
       {    /* mem mapped registers */
            .virtual    = IOP321_VIRT_MEM_BASE,
            .pfn        = __phys_to_pfn(IOP321_PHYS_MEM_BASE),
            .length           = 0x00002000,
            .type       = MT_DEVICE
       }, { /* PCI IO space */
            .virtual    = IOP321_PCI_LOWER_IO_VA,
            .pfn        = __phys_to_pfn(IOP321_PCI_LOWER_IO_PA),
            .length           = IOP321_PCI_IO_WINDOW_SIZE,
            .type       = MT_DEVICE
       }
};

#ifdef CONFIG_ARCH_IQ80321
#define UARTBASE IQ80321_UART
#define IRQ_UART IRQ_IQ80321_UART
#endif

#ifdef CONFIG_ARCH_IQ31244
#define UARTBASE IQ31244_UART
#define IRQ_UART IRQ_IQ31244_UART
#endif

static struct uart_port iop321_serial_ports[] = {
      {
            .membase    = (char*)(UARTBASE),
            .mapbase    = (UARTBASE),
            .irq        = IRQ_UART,
            .flags            = UPF_SKIP_TEST,
            .iotype           = UPIO_MEM,
            .regshift   = 0,
            .uartclk    = IOP321_UART_XTAL,
            .line       = 0,
            .type       = PORT_16550A,
            .fifosize   = 16
      }
};

static struct resource iop32x_i2c_0_resources[] = {
      [0] = {
            .start = 0xfffff680,
            .end = 0xfffff698,
            .flags = IORESOURCE_MEM,
      },
      [1] = {
            .start = IRQ_IOP321_I2C_0,
            .end = IRQ_IOP321_I2C_0,
            .flags = IORESOURCE_IRQ
      }
};

static struct resource iop32x_i2c_1_resources[] = {
      [0] = {
            .start = 0xfffff6a0,
            .end = 0xfffff6b8,
            .flags = IORESOURCE_MEM,
      },
      [1] = {
            .start = IRQ_IOP321_I2C_1,
            .end = IRQ_IOP321_I2C_1,
            .flags = IORESOURCE_IRQ
      }
};

static struct platform_device iop32x_i2c_0_controller = {
      .name = "IOP3xx-I2C",
      .id = 0,
      .num_resources = 2,
      .resource = iop32x_i2c_0_resources
};

static struct platform_device iop32x_i2c_1_controller = {
      .name = "IOP3xx-I2C",
      .id = 1,
      .num_resources = 2,
      .resource = iop32x_i2c_1_resources
};

static struct platform_device *iop32x_devices[] __initdata = {
      &iop32x_i2c_0_controller,
      &iop32x_i2c_1_controller
};

void __init iop32x_init(void)
{
      if(iop_is_321())
      {
            platform_add_devices(iop32x_devices,
                        ARRAY_SIZE(iop32x_devices));
      }
}

void __init iop321_map_io(void)
{
      iotable_init(iop321_std_desc, ARRAY_SIZE(iop321_std_desc));
      early_serial_setup(&iop321_serial_ports[0]);
}

#ifdef CONFIG_ARCH_IQ80321
extern void iq80321_map_io(void);
extern struct sys_timer iop321_timer;
extern void iop321_init_time(void);
#endif

#ifdef CONFIG_ARCH_IQ31244
extern void iq31244_map_io(void);
extern struct sys_timer iop321_timer;
extern void iop321_init_time(void);
#endif

#if defined(CONFIG_ARCH_IQ80321)
MACHINE_START(IQ80321, "Intel IQ80321")
      /* Maintainer: Intel Corporation */
      .phys_io    = IQ80321_UART,
      .io_pg_offst      = ((IQ80321_UART) >> 18) & 0xfffc,
      .map_io           = iq80321_map_io,
      .init_irq   = iop321_init_irq,
      .timer            = &iop321_timer,
      .boot_params      = 0xa0000100,
      .init_machine     = iop32x_init,
MACHINE_END
#elif defined(CONFIG_ARCH_IQ31244)
MACHINE_START(IQ31244, "Intel IQ31244")
      /* Maintainer: Intel Corp. */
      .phys_io    = IQ31244_UART,
      .io_pg_offst      = ((IQ31244_UART) >> 18) & 0xfffc,
      .map_io           = iq31244_map_io,
      .init_irq   = iop321_init_irq,
      .timer            = &iop321_timer,
      .boot_params      = 0xa0000100,
      .init_machine     = iop32x_init,
MACHINE_END
#else
#error No machine descriptor defined for this IOP3XX implementation
#endif

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