arch/arm/cpu/arm926ejs/orion5x/cpu.c - filogic/uboot - Gitiles

 /*
  * Copyright (C) 2010 Albert ARIBAUD <albert.u.boot@aribaud.net>
  *
  * Based on original Kirkwood support which is
  * (C) Copyright 2009
  * Marvell Semiconductor <www.marvell.com>
  * Written-by: Prafulla Wadaskar <prafulla@marvell.com>
  *
  * See file CREDITS for list of people who contributed to this
  * project.
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License as
  * published by the Free Software Foundation; either version 2 of
  * the License, or (at your option) any later version.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
  * MA 02110-1301 USA
  */

 #include <common.h>
 #include <netdev.h>
 #include <asm/cache.h>
 #include <asm/io.h>
 #include <u-boot/md5.h>
 #include <asm/arch/cpu.h>
 #include <hush.h>

 #define BUFLEN	16

 void reset_cpu(unsigned long ignored)
 {
 	struct orion5x_cpu_registers *cpureg =
 	    (struct orion5x_cpu_registers *)ORION5X_CPU_REG_BASE;

 	writel(readl(&cpureg->rstoutn_mask) | (1 << 2),
 		&cpureg->rstoutn_mask);
 	writel(readl(&cpureg->sys_soft_rst) | 1,
 		&cpureg->sys_soft_rst);
 	while (1)
 		;
 }

 /*
  * Compute Window Size field value from size expressed in bytes
  * Used with the Base register to set the address window size and location.
  * Must be programmed from LSB to MSB as sequence of ones followed by
  * sequence of zeros. The number of ones specifies the size of the window in
  * 64 KiB granularity (e.g., a value of 0x00FF specifies 256 = 16 MiB).
  * NOTES:
  * 1) A sizeval equal to 0x0 specifies 4 GiB.
  * 2) A return value of 0x0 specifies 64 KiB.
  */
 unsigned int orion5x_winctrl_calcsize(unsigned int sizeval)
 {
 	/*
 	 * Calculate the number of 64 KiB blocks needed minus one (rounding up).
 	 * For sizeval > 0 this is equivalent to:
 	 * sizeval = (u32) ceil((double) sizeval / 65536.0) - 1
 	 */
 	sizeval = (sizeval - 1) >> 16;

 	/*
 	 * Propagate 'one' bits to the right by 'oring' them.
 	 * We need only treat bits 15-0.
 	 */
 	sizeval |= sizeval >> 1;  /* 'Or' bit 15 onto bit 14 */
 	sizeval |= sizeval >> 2;  /* 'Or' bits 15-14 onto bits 13-12 */
 	sizeval |= sizeval >> 4;  /* 'Or' bits 15-12 onto bits 11-8 */
 	sizeval |= sizeval >> 8;  /* 'Or' bits 15-8 onto bits 7-0*/

 	return sizeval;
 }

 /*
  * orion5x_config_adr_windows - Configure address Windows
  *
  * There are 8 address windows supported by Orion5x Soc to addess different
  * devices. Each window can be configured for size, BAR and remap addr
  * Below configuration is standard for most of the cases
  *
  * If remap function not used, remap_lo must be set as base
  *
  * NOTES:
  *
  * 1) in order to avoid windows with inconsistent control and base values
  *    (which could prevent access to BOOTCS and hence execution from FLASH)
  *    always disable window before writing the base value then reenable it
  *    by writing the control value.
  *
  * 2) in order to avoid losing access to BOOTCS when disabling window 7,
  *    first configure window 6 for BOOTCS, then configure window 7 for BOOTCS,
  *    then configure windows 6 for its own target.
  *
  * Reference Documentation:
  * Mbus-L to Mbus Bridge Registers Configuration.
  * (Sec 25.1 and 25.3 of Datasheet)
  */
 int orion5x_config_adr_windows(void)
 {
 	struct orion5x_win_registers *winregs =
 		(struct orion5x_win_registers *)ORION5X_CPU_WIN_BASE;

 /* Disable window 0, configure it for its intended target, enable it. */
 	writel(0, &winregs[0].ctrl);
 	writel(ORION5X_ADR_PCIE_MEM, &winregs[0].base);
 	writel(ORION5X_ADR_PCIE_MEM_REMAP_LO, &winregs[0].remap_lo);
 	writel(ORION5X_ADR_PCIE_MEM_REMAP_HI, &winregs[0].remap_hi);
 	writel(ORION5X_CPU_WIN_CTRL_DATA(ORION5X_SZ_PCIE_MEM,
 		ORION5X_TARGET_PCIE, ORION5X_ATTR_PCIE_MEM,
 		ORION5X_WIN_ENABLE), &winregs[0].ctrl);
 /* Disable window 1, configure it for its intended target, enable it. */
 	writel(0, &winregs[1].ctrl);
 	writel(ORION5X_ADR_PCIE_IO, &winregs[1].base);
 	writel(ORION5X_ADR_PCIE_IO_REMAP_LO, &winregs[1].remap_lo);
 	writel(ORION5X_ADR_PCIE_IO_REMAP_HI, &winregs[1].remap_hi);
 	writel(ORION5X_CPU_WIN_CTRL_DATA(ORION5X_SZ_PCIE_IO,
 		ORION5X_TARGET_PCIE, ORION5X_ATTR_PCIE_IO,
 		ORION5X_WIN_ENABLE), &winregs[1].ctrl);
 /* Disable window 2, configure it for its intended target, enable it. */
 	writel(0, &winregs[2].ctrl);
 	writel(ORION5X_ADR_PCI_MEM, &winregs[2].base);
 	writel(ORION5X_CPU_WIN_CTRL_DATA(ORION5X_SZ_PCI_MEM,
 		ORION5X_TARGET_PCI, ORION5X_ATTR_PCI_MEM,
 		ORION5X_WIN_ENABLE), &winregs[2].ctrl);
 /* Disable window 3, configure it for its intended target, enable it. */
 	writel(0, &winregs[3].ctrl);
 	writel(ORION5X_ADR_PCI_IO, &winregs[3].base);
 	writel(ORION5X_CPU_WIN_CTRL_DATA(ORION5X_SZ_PCI_IO,
 		ORION5X_TARGET_PCI, ORION5X_ATTR_PCI_IO,
 		ORION5X_WIN_ENABLE), &winregs[3].ctrl);
 /* Disable window 4, configure it for its intended target, enable it. */
 	writel(0, &winregs[4].ctrl);
 	writel(ORION5X_ADR_DEV_CS0, &winregs[4].base);
 	writel(ORION5X_CPU_WIN_CTRL_DATA(ORION5X_SZ_DEV_CS0,
 		ORION5X_TARGET_DEVICE, ORION5X_ATTR_DEV_CS0,
 		ORION5X_WIN_ENABLE), &winregs[4].ctrl);
 /* Disable window 5, configure it for its intended target, enable it. */
 	writel(0, &winregs[5].ctrl);
 	writel(ORION5X_ADR_DEV_CS1, &winregs[5].base);
 	writel(ORION5X_CPU_WIN_CTRL_DATA(ORION5X_SZ_DEV_CS1,
 		ORION5X_TARGET_DEVICE, ORION5X_ATTR_DEV_CS1,
 		ORION5X_WIN_ENABLE), &winregs[5].ctrl);
 /* Disable window 6, configure it for FLASH, enable it. */
 	writel(0, &winregs[6].ctrl);
 	writel(ORION5X_ADR_BOOTROM, &winregs[6].base);
 	writel(ORION5X_CPU_WIN_CTRL_DATA(ORION5X_SZ_BOOTROM,
 		ORION5X_TARGET_DEVICE, ORION5X_ATTR_BOOTROM,
 		ORION5X_WIN_ENABLE), &winregs[6].ctrl);
 /* Disable window 7, configure it for FLASH, enable it. */
 	writel(0, &winregs[7].ctrl);
 	writel(ORION5X_ADR_BOOTROM, &winregs[7].base);
 	writel(ORION5X_CPU_WIN_CTRL_DATA(ORION5X_SZ_BOOTROM,
 		ORION5X_TARGET_DEVICE, ORION5X_ATTR_BOOTROM,
 		ORION5X_WIN_ENABLE), &winregs[7].ctrl);
 /* Disable window 6, configure it for its intended target, enable it. */
 	writel(0, &winregs[6].ctrl);
 	writel(ORION5X_ADR_DEV_CS2, &winregs[6].base);
 	writel(ORION5X_CPU_WIN_CTRL_DATA(ORION5X_SZ_DEV_CS2,
 		ORION5X_TARGET_DEVICE, ORION5X_ATTR_DEV_CS2,
 		ORION5X_WIN_ENABLE), &winregs[6].ctrl);

 	return 0;
 }

 /*
  * Orion5x identification is done through PCIE space.
  */

 u32 orion5x_device_id(void)
 {
 	return readl(PCIE_DEV_ID_OFF) >> 16;
 }

 u32 orion5x_device_rev(void)
 {
 	return readl(PCIE_DEV_REV_OFF) & 0xff;
 }

 #if defined(CONFIG_DISPLAY_CPUINFO)

 /* Display device and revision IDs.
  * This function must cover all known device/revision
  * combinations, not only the one for which u-boot is
  * compiled; this way, one can identify actual HW in
  * case of a mismatch.
  */
 int print_cpuinfo(void)
 {
 	char dev_str[] = "0x0000";
 	char rev_str[] = "0x00";
 	char *dev_name = NULL;
 	char *rev_name = NULL;

 	u32 dev = orion5x_device_id();
 	u32 rev = orion5x_device_rev();

 	if (dev == MV88F5181_DEV_ID) {
 		dev_name = "MV88F5181";
 		if (rev == MV88F5181_REV_B1)
 			rev_name = "B1";
 		else if (rev == MV88F5181L_REV_A1) {
 			dev_name = "MV88F5181L";
 			rev_name = "A1";
 		} else if (rev == MV88F5181L_REV_A0) {
 			dev_name = "MV88F5181L";
 			rev_name = "A0";
 		}
 	} else if (dev == MV88F5182_DEV_ID) {
 		dev_name = "MV88F5182";
 		if (rev == MV88F5182_REV_A2)
 			rev_name = "A2";
 	} else if (dev == MV88F5281_DEV_ID) {
 		dev_name = "MV88F5281";
 		if (rev == MV88F5281_REV_D2)
 			rev_name = "D2";
 		else if (rev == MV88F5281_REV_D1)
 			rev_name = "D1";
 		else if (rev == MV88F5281_REV_D0)
 			rev_name = "D0";
 	} else if (dev == MV88F6183_DEV_ID) {
 		dev_name = "MV88F6183";
 		if (rev == MV88F6183_REV_B0)
 			rev_name = "B0";
 	}
 	if (dev_name == NULL) {
 		sprintf(dev_str, "0x%04x", dev);
 		dev_name = dev_str;
 	}
 	if (rev_name == NULL) {
 		sprintf(rev_str, "0x%02x", rev);
 		rev_name = rev_str;
 	}

 	printf("SoC:   Orion5x %s-%s\n", dev_name, rev_name);

 	return 0;
 }
 #endif /* CONFIG_DISPLAY_CPUINFO */

 #ifdef CONFIG_ARCH_CPU_INIT
 int arch_cpu_init(void)
 {
 	/* Enable and invalidate L2 cache in write through mode */
 	invalidate_l2_cache();

 	orion5x_config_adr_windows();

 	return 0;
 }
 #endif /* CONFIG_ARCH_CPU_INIT */

 /*
  * SOC specific misc init
  */
 #if defined(CONFIG_ARCH_MISC_INIT)
 int arch_misc_init(void)
 {
 	u32 temp;

 	/*CPU streaming & write allocate */
 	temp = readfr_extra_feature_reg();
 	temp &= ~(1 << 28);	/* disable wr alloc */
 	writefr_extra_feature_reg(temp);

 	temp = readfr_extra_feature_reg();
 	temp &= ~(1 << 29);	/* streaming disabled */
 	writefr_extra_feature_reg(temp);

 	/* L2Cache settings */
 	temp = readfr_extra_feature_reg();
 	/* Disable L2C pre fetch - Set bit 24 */
 	temp |= (1 << 24);
 	/* enable L2C - Set bit 22 */
 	temp |= (1 << 22);
 	writefr_extra_feature_reg(temp);

 	icache_enable();
 	/* Change reset vector to address 0x0 */
 	temp = get_cr();
 	set_cr(temp & ~CR_V);

 	/* Set CPIOs and MPPs - values provided by board
 	   include file */
 	writel(ORION5X_MPP0_7, ORION5X_MPP_BASE+0x00);
 	writel(ORION5X_MPP8_15, ORION5X_MPP_BASE+0x04);
 	writel(ORION5X_MPP16_23, ORION5X_MPP_BASE+0x50);
 	writel(ORION5X_GPIO_OUT_ENABLE, ORION5X_GPIO_BASE+0x04);

 	/* initialize timer */
 	timer_init_r();
 	return 0;
 }
 #endif /* CONFIG_ARCH_MISC_INIT */

 #ifdef CONFIG_MVGBE
 int cpu_eth_init(bd_t *bis)
 {
 	mvgbe_initialize(bis);
 	return 0;
 }
 #endif
	/*
	* Copyright (C) 2010 Albert ARIBAUD <albert.u.boot@aribaud.net>
	*
	* Based on original Kirkwood support which is
	* (C) Copyright 2009
	* Marvell Semiconductor <www.marvell.com>
	* Written-by: Prafulla Wadaskar <prafulla@marvell.com>
	*
	* See file CREDITS for list of people who contributed to this
	* project.
	*
	* This program is free software; you can redistribute it and/or
	* modify it under the terms of the GNU General Public License as
	* published by the Free Software Foundation; either version 2 of
	* the License, or (at your option) any later version.
	*
	* This program is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	* GNU General Public License for more details.
	*
	* You should have received a copy of the GNU General Public License
	* along with this program; if not, write to the Free Software
	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
	* MA 02110-1301 USA
	*/

	#include <common.h>
	#include <netdev.h>
	#include <asm/cache.h>
	#include <asm/io.h>
	#include <u-boot/md5.h>
	#include <asm/arch/cpu.h>
	#include <hush.h>

	#define BUFLEN 16

	void reset_cpu(unsigned long ignored)
	{
	struct orion5x_cpu_registers *cpureg =
	(struct orion5x_cpu_registers *)ORION5X_CPU_REG_BASE;

	writel(readl(&cpureg->rstoutn_mask) \| (1 << 2),
	&cpureg->rstoutn_mask);
	writel(readl(&cpureg->sys_soft_rst) \| 1,
	&cpureg->sys_soft_rst);
	while (1)
	;
	}

	/*
	* Compute Window Size field value from size expressed in bytes
	* Used with the Base register to set the address window size and location.
	* Must be programmed from LSB to MSB as sequence of ones followed by
	* sequence of zeros. The number of ones specifies the size of the window in
	* 64 KiB granularity (e.g., a value of 0x00FF specifies 256 = 16 MiB).
	* NOTES:
	* 1) A sizeval equal to 0x0 specifies 4 GiB.
	* 2) A return value of 0x0 specifies 64 KiB.
	*/
	unsigned int orion5x_winctrl_calcsize(unsigned int sizeval)
	{
	/*
	* Calculate the number of 64 KiB blocks needed minus one (rounding up).
	* For sizeval > 0 this is equivalent to:
	* sizeval = (u32) ceil((double) sizeval / 65536.0) - 1
	*/
	sizeval = (sizeval - 1) >> 16;

	/*
	* Propagate 'one' bits to the right by 'oring' them.
	* We need only treat bits 15-0.
	*/
	sizeval \|= sizeval >> 1; /* 'Or' bit 15 onto bit 14 */
	sizeval \|= sizeval >> 2; /* 'Or' bits 15-14 onto bits 13-12 */
	sizeval \|= sizeval >> 4; /* 'Or' bits 15-12 onto bits 11-8 */
	sizeval \|= sizeval >> 8; /* 'Or' bits 15-8 onto bits 7-0*/

	return sizeval;
	}

	/*
	* orion5x_config_adr_windows - Configure address Windows
	*
	* There are 8 address windows supported by Orion5x Soc to addess different
	* devices. Each window can be configured for size, BAR and remap addr
	* Below configuration is standard for most of the cases
	*
	* If remap function not used, remap_lo must be set as base
	*
	* NOTES:
	*
	* 1) in order to avoid windows with inconsistent control and base values
	* (which could prevent access to BOOTCS and hence execution from FLASH)
	* always disable window before writing the base value then reenable it
	* by writing the control value.
	*
	* 2) in order to avoid losing access to BOOTCS when disabling window 7,
	* first configure window 6 for BOOTCS, then configure window 7 for BOOTCS,
	* then configure windows 6 for its own target.
	*
	* Reference Documentation:
	* Mbus-L to Mbus Bridge Registers Configuration.
	* (Sec 25.1 and 25.3 of Datasheet)
	*/
	int orion5x_config_adr_windows(void)
	{
	struct orion5x_win_registers *winregs =
	(struct orion5x_win_registers *)ORION5X_CPU_WIN_BASE;

	/* Disable window 0, configure it for its intended target, enable it. */
	writel(0, &winregs[0].ctrl);
	writel(ORION5X_ADR_PCIE_MEM, &winregs[0].base);
	writel(ORION5X_ADR_PCIE_MEM_REMAP_LO, &winregs[0].remap_lo);
	writel(ORION5X_ADR_PCIE_MEM_REMAP_HI, &winregs[0].remap_hi);
	writel(ORION5X_CPU_WIN_CTRL_DATA(ORION5X_SZ_PCIE_MEM,
	ORION5X_TARGET_PCIE, ORION5X_ATTR_PCIE_MEM,
	ORION5X_WIN_ENABLE), &winregs[0].ctrl);
	/* Disable window 1, configure it for its intended target, enable it. */
	writel(0, &winregs[1].ctrl);
	writel(ORION5X_ADR_PCIE_IO, &winregs[1].base);
	writel(ORION5X_ADR_PCIE_IO_REMAP_LO, &winregs[1].remap_lo);
	writel(ORION5X_ADR_PCIE_IO_REMAP_HI, &winregs[1].remap_hi);
	writel(ORION5X_CPU_WIN_CTRL_DATA(ORION5X_SZ_PCIE_IO,
	ORION5X_TARGET_PCIE, ORION5X_ATTR_PCIE_IO,
	ORION5X_WIN_ENABLE), &winregs[1].ctrl);
	/* Disable window 2, configure it for its intended target, enable it. */
	writel(0, &winregs[2].ctrl);
	writel(ORION5X_ADR_PCI_MEM, &winregs[2].base);
	writel(ORION5X_CPU_WIN_CTRL_DATA(ORION5X_SZ_PCI_MEM,
	ORION5X_TARGET_PCI, ORION5X_ATTR_PCI_MEM,
	ORION5X_WIN_ENABLE), &winregs[2].ctrl);
	/* Disable window 3, configure it for its intended target, enable it. */
	writel(0, &winregs[3].ctrl);
	writel(ORION5X_ADR_PCI_IO, &winregs[3].base);
	writel(ORION5X_CPU_WIN_CTRL_DATA(ORION5X_SZ_PCI_IO,
	ORION5X_TARGET_PCI, ORION5X_ATTR_PCI_IO,
	ORION5X_WIN_ENABLE), &winregs[3].ctrl);
	/* Disable window 4, configure it for its intended target, enable it. */
	writel(0, &winregs[4].ctrl);
	writel(ORION5X_ADR_DEV_CS0, &winregs[4].base);
	writel(ORION5X_CPU_WIN_CTRL_DATA(ORION5X_SZ_DEV_CS0,
	ORION5X_TARGET_DEVICE, ORION5X_ATTR_DEV_CS0,
	ORION5X_WIN_ENABLE), &winregs[4].ctrl);
	/* Disable window 5, configure it for its intended target, enable it. */
	writel(0, &winregs[5].ctrl);
	writel(ORION5X_ADR_DEV_CS1, &winregs[5].base);
	writel(ORION5X_CPU_WIN_CTRL_DATA(ORION5X_SZ_DEV_CS1,
	ORION5X_TARGET_DEVICE, ORION5X_ATTR_DEV_CS1,
	ORION5X_WIN_ENABLE), &winregs[5].ctrl);
	/* Disable window 6, configure it for FLASH, enable it. */
	writel(0, &winregs[6].ctrl);
	writel(ORION5X_ADR_BOOTROM, &winregs[6].base);
	writel(ORION5X_CPU_WIN_CTRL_DATA(ORION5X_SZ_BOOTROM,
	ORION5X_TARGET_DEVICE, ORION5X_ATTR_BOOTROM,
	ORION5X_WIN_ENABLE), &winregs[6].ctrl);
	/* Disable window 7, configure it for FLASH, enable it. */
	writel(0, &winregs[7].ctrl);
	writel(ORION5X_ADR_BOOTROM, &winregs[7].base);
	writel(ORION5X_CPU_WIN_CTRL_DATA(ORION5X_SZ_BOOTROM,
	ORION5X_TARGET_DEVICE, ORION5X_ATTR_BOOTROM,
	ORION5X_WIN_ENABLE), &winregs[7].ctrl);
	/* Disable window 6, configure it for its intended target, enable it. */
	writel(0, &winregs[6].ctrl);
	writel(ORION5X_ADR_DEV_CS2, &winregs[6].base);
	writel(ORION5X_CPU_WIN_CTRL_DATA(ORION5X_SZ_DEV_CS2,
	ORION5X_TARGET_DEVICE, ORION5X_ATTR_DEV_CS2,
	ORION5X_WIN_ENABLE), &winregs[6].ctrl);

	return 0;
	}

	/*
	* Orion5x identification is done through PCIE space.
	*/

	u32 orion5x_device_id(void)
	{
	return readl(PCIE_DEV_ID_OFF) >> 16;
	}

	u32 orion5x_device_rev(void)
	{
	return readl(PCIE_DEV_REV_OFF) & 0xff;
	}

	#if defined(CONFIG_DISPLAY_CPUINFO)

	/* Display device and revision IDs.
	* This function must cover all known device/revision
	* combinations, not only the one for which u-boot is
	* compiled; this way, one can identify actual HW in
	* case of a mismatch.
	*/
	int print_cpuinfo(void)
	{
	char dev_str[] = "0x0000";
	char rev_str[] = "0x00";
	char *dev_name = NULL;
	char *rev_name = NULL;

	u32 dev = orion5x_device_id();
	u32 rev = orion5x_device_rev();

	if (dev == MV88F5181_DEV_ID) {
	dev_name = "MV88F5181";
	if (rev == MV88F5181_REV_B1)
	rev_name = "B1";
	else if (rev == MV88F5181L_REV_A1) {
	dev_name = "MV88F5181L";
	rev_name = "A1";
	} else if (rev == MV88F5181L_REV_A0) {
	dev_name = "MV88F5181L";
	rev_name = "A0";
	}
	} else if (dev == MV88F5182_DEV_ID) {
	dev_name = "MV88F5182";
	if (rev == MV88F5182_REV_A2)
	rev_name = "A2";
	} else if (dev == MV88F5281_DEV_ID) {
	dev_name = "MV88F5281";
	if (rev == MV88F5281_REV_D2)
	rev_name = "D2";
	else if (rev == MV88F5281_REV_D1)
	rev_name = "D1";
	else if (rev == MV88F5281_REV_D0)
	rev_name = "D0";
	} else if (dev == MV88F6183_DEV_ID) {
	dev_name = "MV88F6183";
	if (rev == MV88F6183_REV_B0)
	rev_name = "B0";
	}
	if (dev_name == NULL) {
	sprintf(dev_str, "0x%04x", dev);
	dev_name = dev_str;
	}
	if (rev_name == NULL) {
	sprintf(rev_str, "0x%02x", rev);
	rev_name = rev_str;
	}

	printf("SoC: Orion5x %s-%s\n", dev_name, rev_name);

	return 0;
	}
	#endif /* CONFIG_DISPLAY_CPUINFO */

	#ifdef CONFIG_ARCH_CPU_INIT
	int arch_cpu_init(void)
	{
	/* Enable and invalidate L2 cache in write through mode */
	invalidate_l2_cache();

	orion5x_config_adr_windows();

	return 0;
	}
	#endif /* CONFIG_ARCH_CPU_INIT */

	/*
	* SOC specific misc init
	*/
	#if defined(CONFIG_ARCH_MISC_INIT)
	int arch_misc_init(void)
	{
	u32 temp;

	/CPU streaming & write allocate /
	temp = readfr_extra_feature_reg();
	temp &= ~(1 << 28); /* disable wr alloc */
	writefr_extra_feature_reg(temp);

	temp = readfr_extra_feature_reg();
	temp &= ~(1 << 29); /* streaming disabled */
	writefr_extra_feature_reg(temp);

	/* L2Cache settings */
	temp = readfr_extra_feature_reg();
	/* Disable L2C pre fetch - Set bit 24 */
	temp \|= (1 << 24);
	/* enable L2C - Set bit 22 */
	temp \|= (1 << 22);
	writefr_extra_feature_reg(temp);

	icache_enable();
	/* Change reset vector to address 0x0 */
	temp = get_cr();
	set_cr(temp & ~CR_V);

	/* Set CPIOs and MPPs - values provided by board
	include file */
	writel(ORION5X_MPP0_7, ORION5X_MPP_BASE+0x00);
	writel(ORION5X_MPP8_15, ORION5X_MPP_BASE+0x04);
	writel(ORION5X_MPP16_23, ORION5X_MPP_BASE+0x50);
	writel(ORION5X_GPIO_OUT_ENABLE, ORION5X_GPIO_BASE+0x04);

	/* initialize timer */
	timer_init_r();
	return 0;
	}
	#endif /* CONFIG_ARCH_MISC_INIT */

	#ifdef CONFIG_MVGBE
	int cpu_eth_init(bd_t *bis)
	{
	mvgbe_initialize(bis);
	return 0;
	}
	#endif