text: /*
   *  linux/arch/arm/mach-mmp/pxa168.c
   *
   *  Code specific to PXA168
   *
   * 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/module.h>
  #include <linux/kernel.h>
  #include <linux/init.h>
  #include <linux/list.h>
  #include <linux/io.h>
  #include <linux/clk.h>
  #include <linux/platform_device.h>
  #include <linux/platform_data/mv_usb.h>
  
  #include <asm/mach/time.h>
  #include <asm/system_misc.h>
  #include <mach/cputype.h>
  #include <mach/addr-map.h>
  #include <mach/regs-apbc.h>
  #include <mach/regs-apmu.h>
  #include <mach/irqs.h>
  #include <mach/dma.h>
  #include <mach/devices.h>
  #include <mach/mfp.h>
  #include <linux/dma-mapping.h>
  #include <mach/pxa168.h>
  #include <mach/regs-usb.h>
  
  #include "common.h"
  #include "clock.h"
  
  #define MFPR_VIRT_BASE	(APB_VIRT_BASE + 0x1e000)
  
  static struct mfp_addr_map pxa168_mfp_addr_map[] __initdata =
  {
  	MFP_ADDR_X(GPIO0,   GPIO36,  0x04c),
  	MFP_ADDR_X(GPIO37,  GPIO55,  0x000),
  	MFP_ADDR_X(GPIO56,  GPIO123, 0x0e0),
  	MFP_ADDR_X(GPIO124, GPIO127, 0x0f4),
  
  	MFP_ADDR_END,
  };
  
  void __init pxa168_init_irq(void)
  {
  	icu_init_irq();
  }
  
  static int __init pxa168_init(void)
  {
  	if (cpu_is_pxa168()) {
  		mfp_init_base(MFPR_VIRT_BASE);
  		mfp_init_addr(pxa168_mfp_addr_map);
  		pxa_init_dma(IRQ_PXA168_DMA_INT0, 32);
  		pxa168_clk_init();
  	}
  
  	return 0;
  }
  postcore_initcall(pxa168_init);
  
  /* system timer - clock enabled, 3.25MHz */
  #define TIMER_CLK_RST	(APBC_APBCLK | APBC_FNCLK | APBC_FNCLKSEL(3))
  #define APBC_TIMERS	APBC_REG(0x34)
  
  static void __init pxa168_timer_init(void)
  {
  	/* this is early, we have to initialize the CCU registers by
  	 * ourselves instead of using clk_* API. Clock rate is defined
  	 * by APBC_TIMERS_CLK_RST (3.25MHz) and enabled free-running
  	 */
  	__raw_writel(APBC_APBCLK | APBC_RST, APBC_TIMERS);
  
  	/* 3.25MHz, bus/functional clock enabled, release reset */
  	__raw_writel(TIMER_CLK_RST, APBC_TIMERS);
  
  	timer_init(IRQ_PXA168_TIMER1);
  }
  
  struct sys_timer pxa168_timer = {
  	.init	= pxa168_timer_init,
  };
  
  void pxa168_clear_keypad_wakeup(void)
  {
  	uint32_t val;
  	uint32_t mask = APMU_PXA168_KP_WAKE_CLR;
  
  	/* wake event clear is needed in order to clear keypad interrupt */
  	val = __raw_readl(APMU_WAKE_CLR);
  	__raw_writel(val |  mask, APMU_WAKE_CLR);
  }
  
  /* on-chip devices */
  PXA168_DEVICE(uart1, "pxa2xx-uart", 0, UART1, 0xd4017000, 0x30, 21, 22);
  PXA168_DEVICE(uart2, "pxa2xx-uart", 1, UART2, 0xd4018000, 0x30, 23, 24);
  PXA168_DEVICE(uart3, "pxa2xx-uart", 2, UART3, 0xd4026000, 0x30, 23, 24);
  PXA168_DEVICE(twsi0, "pxa2xx-i2c", 0, TWSI0, 0xd4011000, 0x28);
  PXA168_DEVICE(twsi1, "pxa2xx-i2c", 1, TWSI1, 0xd4025000, 0x28);
  PXA168_DEVICE(pwm1, "pxa168-pwm", 0, NONE, 0xd401a000, 0x10);
  PXA168_DEVICE(pwm2, "pxa168-pwm", 1, NONE, 0xd401a400, 0x10);
  PXA168_DEVICE(pwm3, "pxa168-pwm", 2, NONE, 0xd401a800, 0x10);
  PXA168_DEVICE(pwm4, "pxa168-pwm", 3, NONE, 0xd401ac00, 0x10);
  PXA168_DEVICE(nand, "pxa3xx-nand", -1, NAND, 0xd4283000, 0x80, 97, 99);
  PXA168_DEVICE(ssp1, "pxa168-ssp", 0, SSP1, 0xd401b000, 0x40, 52, 53);
  PXA168_DEVICE(ssp2, "pxa168-ssp", 1, SSP2, 0xd401c000, 0x40, 54, 55);
  PXA168_DEVICE(ssp3, "pxa168-ssp", 2, SSP3, 0xd401f000, 0x40, 56, 57);
  PXA168_DEVICE(ssp4, "pxa168-ssp", 3, SSP4, 0xd4020000, 0x40, 58, 59);
  PXA168_DEVICE(ssp5, "pxa168-ssp", 4, SSP5, 0xd4021000, 0x40, 60, 61);
  PXA168_DEVICE(fb, "pxa168-fb", -1, LCD, 0xd420b000, 0x1c8);
  PXA168_DEVICE(keypad, "pxa27x-keypad", -1, KEYPAD, 0xd4012000, 0x4c);
  PXA168_DEVICE(eth, "pxa168-eth", -1, MFU, 0xc0800000, 0x0fff);
  
  struct resource pxa168_resource_gpio[] = {
  	{
  		.start	= 0xd4019000,
  		.end	= 0xd4019fff,
  		.flags	= IORESOURCE_MEM,
  	}, {
  		.start	= IRQ_PXA168_GPIOX,
  		.end	= IRQ_PXA168_GPIOX,
  		.name	= "gpio_mux",
  		.flags	= IORESOURCE_IRQ,
  	},
  };
  
  struct platform_device pxa168_device_gpio = {
  	.name		= "pxa-gpio",
  	.id		= -1,
  	.num_resources	= ARRAY_SIZE(pxa168_resource_gpio),
  	.resource	= pxa168_resource_gpio,
  };
  
  struct resource pxa168_usb_host_resources[] = {
  	/* USB Host conroller register base */
  	[0] = {
  		.start	= PXA168_U2H_REGBASE + U2x_CAPREGS_OFFSET,
  		.end	= PXA168_U2H_REGBASE + USB_REG_RANGE,
  		.flags	= IORESOURCE_MEM,
  		.name	= "capregs",
  	},
  	/* USB PHY register base */
  	[1] = {
  		.start	= PXA168_U2H_PHYBASE,
  		.end	= PXA168_U2H_PHYBASE + USB_PHY_RANGE,
  		.flags	= IORESOURCE_MEM,
  		.name	= "phyregs",
  	},
  	[2] = {
  		.start	= IRQ_PXA168_USB2,
  		.end	= IRQ_PXA168_USB2,
  		.flags	= IORESOURCE_IRQ,
  	},
  };
  
  static u64 pxa168_usb_host_dmamask = DMA_BIT_MASK(32);
  struct platform_device pxa168_device_usb_host = {
  	.name = "pxa-sph",
  	.id   = -1,
  	.dev  = {
  		.dma_mask = &pxa168_usb_host_dmamask,
  		.coherent_dma_mask = DMA_BIT_MASK(32),
  	},
  
  	.num_resources = ARRAY_SIZE(pxa168_usb_host_resources),
  	.resource      = pxa168_usb_host_resources,
  };
  
  int __init pxa168_add_usb_host(struct mv_usb_platform_data *pdata)
  {
  	pxa168_device_usb_host.dev.platform_data = pdata;
  	return platform_device_register(&pxa168_device_usb_host);
  }
  
  void pxa168_restart(char mode, const char *cmd)
  {
  	soft_restart(0xffff0000);
  }
  