board/freescale/mpc8641hpcn/mpc8641hpcn.c - uboot/prism - Git at Google

 /*
  * Copyright 2006, 2007 Freescale Semiconductor.
  *
  * 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., 59 Temple Place, Suite 330, Boston,
  * MA 02111-1307 USA
  */

 #include <common.h>
 #include <pci.h>
 #include <asm/processor.h>
 #include <asm/immap_86xx.h>
 #include <asm/fsl_pci.h>
 #include <asm/fsl_ddr_sdram.h>
 #include <asm/io.h>
 #include <libfdt.h>
 #include <fdt_support.h>
 #include <netdev.h>

 #include "../common/pixis.h"

 phys_size_t fixed_sdram(void);

 int board_early_init_f(void)
 {
 	return 0;
 }

 int checkboard(void)
 {
 	u8 vboot;
 	u8 *pixis_base = (u8 *)PIXIS_BASE;

 	printf ("Board: MPC8641HPCN, Sys ID: 0x%02x, "
 		"Sys Ver: 0x%02x, FPGA Ver: 0x%02x, ",
 		in_8(pixis_base + PIXIS_ID), in_8(pixis_base + PIXIS_VER),
 		in_8(pixis_base + PIXIS_PVER));

 	vboot = in_8(pixis_base + PIXIS_VBOOT);
 	if (vboot & PIXIS_VBOOT_FMAP)
 		printf ("vBank: %d\n", ((vboot & PIXIS_VBOOT_FBANK) >> 6));
 	else
 		puts ("Promjet\n");

 #ifdef CONFIG_PHYS_64BIT
 	printf ("       36-bit physical address map\n");
 #endif
 	return 0;
 }


 phys_size_t
 initdram(int board_type)
 {
 	phys_size_t dram_size = 0;

 #if defined(CONFIG_SPD_EEPROM)
 	dram_size = fsl_ddr_sdram();
 #else
 	dram_size = fixed_sdram();
 #endif

 #if defined(CONFIG_SYS_RAMBOOT)
 	puts("    DDR: ");
 	return dram_size;
 #endif

 	puts("    DDR: ");
 	return dram_size;
 }


 #if !defined(CONFIG_SPD_EEPROM)
 /*
  * Fixed sdram init -- doesn't use serial presence detect.
  */
 phys_size_t
 fixed_sdram(void)
 {
 #if !defined(CONFIG_SYS_RAMBOOT)
 	volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
 	volatile ccsr_ddr_t *ddr = &immap->im_ddr1;

 	ddr->cs0_bnds = CONFIG_SYS_DDR_CS0_BNDS;
 	ddr->cs0_config = CONFIG_SYS_DDR_CS0_CONFIG;
 	ddr->timing_cfg_3 = CONFIG_SYS_DDR_TIMING_3;
 	ddr->timing_cfg_0 = CONFIG_SYS_DDR_TIMING_0;
 	ddr->timing_cfg_1 = CONFIG_SYS_DDR_TIMING_1;
 	ddr->timing_cfg_2 = CONFIG_SYS_DDR_TIMING_2;
 	ddr->sdram_mode = CONFIG_SYS_DDR_MODE_1;
 	ddr->sdram_mode_2 = CONFIG_SYS_DDR_MODE_2;
 	ddr->sdram_interval = CONFIG_SYS_DDR_INTERVAL;
 	ddr->sdram_data_init = CONFIG_SYS_DDR_DATA_INIT;
 	ddr->sdram_clk_cntl = CONFIG_SYS_DDR_CLK_CTRL;
 	ddr->sdram_ocd_cntl = CONFIG_SYS_DDR_OCD_CTRL;
 	ddr->sdram_ocd_status = CONFIG_SYS_DDR_OCD_STATUS;

 #if defined (CONFIG_DDR_ECC)
 	ddr->err_disable = 0x0000008D;
 	ddr->err_sbe = 0x00ff0000;
 #endif
 	asm("sync;isync");

 	udelay(500);

 #if defined (CONFIG_DDR_ECC)
 	/* Enable ECC checking */
 	ddr->sdram_cfg = (CONFIG_SYS_DDR_CONTROL | 0x20000000);
 #else
 	ddr->sdram_cfg = CONFIG_SYS_DDR_CONTROL;
 	ddr->sdram_cfg_2 = CONFIG_SYS_DDR_CONTROL2;
 #endif
 	asm("sync; isync");

 	udelay(500);
 #endif
 	return CONFIG_SYS_SDRAM_SIZE * 1024 * 1024;
 }
 #endif	/* !defined(CONFIG_SPD_EEPROM) */


 #if defined(CONFIG_PCI)
 static struct pci_controller pci1_hose;
 #endif /* CONFIG_PCI */

 #ifdef CONFIG_PCI2
 static struct pci_controller pci2_hose;
 #endif	/* CONFIG_PCI2 */

 int first_free_busno = 0;

 void pci_init_board(void)
 {
 #ifdef CONFIG_PCI1
 {
 	volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CONFIG_SYS_PCI1_ADDR;
 	struct pci_controller *hose = &pci1_hose;
 	struct pci_region *r = hose->regions;
 	volatile immap_t *immap = (immap_t *) CONFIG_SYS_CCSRBAR;
 	volatile ccsr_gur_t *gur = &immap->im_gur;
 	uint devdisr = gur->devdisr;
 	uint io_sel = (gur->pordevsr & MPC8641_PORDEVSR_IO_SEL)
 		>> MPC8641_PORDEVSR_IO_SEL_SHIFT;

 #ifdef DEBUG
 	uint host1_agent = (gur->porbmsr & MPC8641_PORBMSR_HA)
 		>> MPC8641_PORBMSR_HA_SHIFT;
 	uint pex1_agent = (host1_agent == 0) || (host1_agent == 1);
 #endif
 	if ((io_sel == 2 || io_sel == 3 || io_sel == 5
 	     || io_sel == 6 || io_sel == 7 || io_sel == 0xF)
 	    && !(devdisr & MPC86xx_DEVDISR_PCIEX1)) {
 		debug("PCI-EXPRESS 1: %s \n", pex1_agent ? "Agent" : "Host");
 		debug("0x%08x=0x%08x ", &pci->pme_msg_det, pci->pme_msg_det);
 		if (pci->pme_msg_det) {
 			pci->pme_msg_det = 0xffffffff;
 			debug(" with errors.  Clearing.  Now 0x%08x",
 			      pci->pme_msg_det);
 		}
 		debug("\n");

 		/* outbound memory */
 		pci_set_region(r++,
 			       CONFIG_SYS_PCI1_MEM_BUS,
 			       CONFIG_SYS_PCI1_MEM_PHYS,
 			       CONFIG_SYS_PCI1_MEM_SIZE,
 			       PCI_REGION_MEM);

 		/* outbound io */
 		pci_set_region(r++,
 			       CONFIG_SYS_PCI1_IO_BUS,
 			       CONFIG_SYS_PCI1_IO_PHYS,
 			       CONFIG_SYS_PCI1_IO_SIZE,
 			       PCI_REGION_IO);

 		/* inbound */
 		r += fsl_pci_setup_inbound_windows(r);

 		hose->region_count = r - hose->regions;

 		hose->first_busno=first_free_busno;
 		pci_setup_indirect(hose, (int) &pci->cfg_addr, (int) &pci->cfg_data);

 		fsl_pci_init(hose);

 		first_free_busno=hose->last_busno+1;
 		printf ("    PCI-EXPRESS 1 on bus %02x - %02x\n",
 			hose->first_busno,hose->last_busno);

 		/*
 		 * Activate ULI1575 legacy chip by performing a fake
 		 * memory access.  Needed to make ULI RTC work.
 		 */
 		in_be32((unsigned *) ((char *)(CONFIG_SYS_PCI1_MEM_VIRT
 				       + CONFIG_SYS_PCI1_MEM_SIZE - 0x1000000)));

 	} else {
 		puts("PCI-EXPRESS 1: Disabled\n");
 	}
 }
 #else
 	puts("PCI-EXPRESS1: Disabled\n");
 #endif /* CONFIG_PCI1 */

 #ifdef CONFIG_PCI2
 {
 	volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CONFIG_SYS_PCI2_ADDR;
 	struct pci_controller *hose = &pci2_hose;
 	struct pci_region *r = hose->regions;

 	/* outbound memory */
 	pci_set_region(r++,
 		       CONFIG_SYS_PCI2_MEM_BUS,
 		       CONFIG_SYS_PCI2_MEM_PHYS,
 		       CONFIG_SYS_PCI2_MEM_SIZE,
 		       PCI_REGION_MEM);

 	/* outbound io */
 	pci_set_region(r++,
 		       CONFIG_SYS_PCI2_IO_BUS,
 		       CONFIG_SYS_PCI2_IO_PHYS,
 		       CONFIG_SYS_PCI2_IO_SIZE,
 		       PCI_REGION_IO);

 	/* inbound */
 	r += fsl_pci_setup_inbound_windows(r);

 	hose->region_count = r - hose->regions;

 	hose->first_busno=first_free_busno;
 	pci_setup_indirect(hose, (int) &pci->cfg_addr, (int) &pci->cfg_data);

 	fsl_pci_init(hose);

 	first_free_busno=hose->last_busno+1;
 	printf ("    PCI-EXPRESS 2 on bus %02x - %02x\n",
 		hose->first_busno,hose->last_busno);
 }
 #else
 	puts("PCI-EXPRESS 2: Disabled\n");
 #endif /* CONFIG_PCI2 */

 }


 #if defined(CONFIG_OF_BOARD_SETUP)
 void
 ft_board_setup(void *blob, bd_t *bd)
 {
 	int off;
 	u64 *tmp;
 	u32 *addrcells;

 	ft_cpu_setup(blob, bd);

 #ifdef CONFIG_PCI1
 	ft_fsl_pci_setup(blob, "pci0", &pci1_hose);
 #endif
 #ifdef CONFIG_PCI2
 	ft_fsl_pci_setup(blob, "pci1", &pci2_hose);
 #endif

 	/*
 	 * Warn if it looks like the device tree doesn't match u-boot.
 	 * This is just an estimation, based on the location of CCSR,
 	 * which is defined by the "reg" property in the soc node.
 	 */
 	off = fdt_path_offset(blob, "/soc8641");
 	addrcells = (u32 *)fdt_getprop(blob, 0, "#address-cells", NULL);
 	tmp = (u64 *)fdt_getprop(blob, off, "reg", NULL);

 	if (tmp) {
 		u64 addr;
 		if (addrcells && (*addrcells == 1))
 			addr = *(u32 *)tmp;
 		else
 			addr = *tmp;

 		if (addr != CONFIG_SYS_CCSRBAR_PHYS)
 			printf("WARNING: The CCSRBAR address in your .dts "
 			       "does not match the address of the CCSR "
 			       "in u-boot.  This means your .dts might "
 			       "be old.\n");
 	}
 }
 #endif


 /*
  * get_board_sys_clk
  *      Reads the FPGA on board for CONFIG_SYS_CLK_FREQ
  */

 unsigned long
 get_board_sys_clk(ulong dummy)
 {
 	u8 i, go_bit, rd_clks;
 	ulong val = 0;
 	u8 *pixis_base = (u8 *)PIXIS_BASE;

 	go_bit = in_8(pixis_base + PIXIS_VCTL);
 	go_bit &= 0x01;

 	rd_clks = in_8(pixis_base + PIXIS_VCFGEN0);
 	rd_clks &= 0x1C;

 	/*
 	 * Only if both go bit and the SCLK bit in VCFGEN0 are set
 	 * should we be using the AUX register. Remember, we also set the
 	 * GO bit to boot from the alternate bank on the on-board flash
 	 */

 	if (go_bit) {
 		if (rd_clks == 0x1c)
 			i = in_8(pixis_base + PIXIS_AUX);
 		else
 			i = in_8(pixis_base + PIXIS_SPD);
 	} else {
 		i = in_8(pixis_base + PIXIS_SPD);
 	}

 	i &= 0x07;

 	switch (i) {
 	case 0:
 		val = 33000000;
 		break;
 	case 1:
 		val = 40000000;
 		break;
 	case 2:
 		val = 50000000;
 		break;
 	case 3:
 		val = 66000000;
 		break;
 	case 4:
 		val = 83000000;
 		break;
 	case 5:
 		val = 100000000;
 		break;
 	case 6:
 		val = 134000000;
 		break;
 	case 7:
 		val = 166000000;
 		break;
 	}

 	return val;
 }

 int board_eth_init(bd_t *bis)
 {
 	/* Initialize TSECs */
 	cpu_eth_init(bis);
 	return pci_eth_init(bis);
 }

 void board_reset(void)
 {
 	u8 *pixis_base = (u8 *)PIXIS_BASE;

 	out_8(pixis_base + PIXIS_RST, 0);

 	while (1)
 		;
 }

 #ifdef CONFIG_MP
 extern void cpu_mp_lmb_reserve(struct lmb *lmb);

 void board_lmb_reserve(struct lmb *lmb)
 {
 	cpu_mp_lmb_reserve(lmb);
 }
 #endif
	/*
	* Copyright 2006, 2007 Freescale Semiconductor.
	*
	* 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., 59 Temple Place, Suite 330, Boston,
	* MA 02111-1307 USA
	*/

	#include <common.h>
	#include <pci.h>
	#include <asm/processor.h>
	#include <asm/immap_86xx.h>
	#include <asm/fsl_pci.h>
	#include <asm/fsl_ddr_sdram.h>
	#include <asm/io.h>
	#include <libfdt.h>
	#include <fdt_support.h>
	#include <netdev.h>

	#include "../common/pixis.h"

	phys_size_t fixed_sdram(void);

	int board_early_init_f(void)
	{
	return 0;
	}

	int checkboard(void)
	{
	u8 vboot;
	u8 pixis_base = (u8 )PIXIS_BASE;

	printf ("Board: MPC8641HPCN, Sys ID: 0x%02x, "
	"Sys Ver: 0x%02x, FPGA Ver: 0x%02x, ",
	in_8(pixis_base + PIXIS_ID), in_8(pixis_base + PIXIS_VER),
	in_8(pixis_base + PIXIS_PVER));

	vboot = in_8(pixis_base + PIXIS_VBOOT);
	if (vboot & PIXIS_VBOOT_FMAP)
	printf ("vBank: %d\n", ((vboot & PIXIS_VBOOT_FBANK) >> 6));
	else
	puts ("Promjet\n");

	#ifdef CONFIG_PHYS_64BIT
	printf (" 36-bit physical address map\n");
	#endif
	return 0;
	}


	phys_size_t
	initdram(int board_type)
	{
	phys_size_t dram_size = 0;

	#if defined(CONFIG_SPD_EEPROM)
	dram_size = fsl_ddr_sdram();
	#else
	dram_size = fixed_sdram();
	#endif

	#if defined(CONFIG_SYS_RAMBOOT)
	puts(" DDR: ");
	return dram_size;
	#endif

	puts(" DDR: ");
	return dram_size;
	}


	#if !defined(CONFIG_SPD_EEPROM)
	/*
	* Fixed sdram init -- doesn't use serial presence detect.
	*/
	phys_size_t
	fixed_sdram(void)
	{
	#if !defined(CONFIG_SYS_RAMBOOT)
	volatile immap_t immap = (immap_t ) CONFIG_SYS_IMMR;
	volatile ccsr_ddr_t *ddr = &immap->im_ddr1;

	ddr->cs0_bnds = CONFIG_SYS_DDR_CS0_BNDS;
	ddr->cs0_config = CONFIG_SYS_DDR_CS0_CONFIG;
	ddr->timing_cfg_3 = CONFIG_SYS_DDR_TIMING_3;
	ddr->timing_cfg_0 = CONFIG_SYS_DDR_TIMING_0;
	ddr->timing_cfg_1 = CONFIG_SYS_DDR_TIMING_1;
	ddr->timing_cfg_2 = CONFIG_SYS_DDR_TIMING_2;
	ddr->sdram_mode = CONFIG_SYS_DDR_MODE_1;
	ddr->sdram_mode_2 = CONFIG_SYS_DDR_MODE_2;
	ddr->sdram_interval = CONFIG_SYS_DDR_INTERVAL;
	ddr->sdram_data_init = CONFIG_SYS_DDR_DATA_INIT;
	ddr->sdram_clk_cntl = CONFIG_SYS_DDR_CLK_CTRL;
	ddr->sdram_ocd_cntl = CONFIG_SYS_DDR_OCD_CTRL;
	ddr->sdram_ocd_status = CONFIG_SYS_DDR_OCD_STATUS;

	#if defined (CONFIG_DDR_ECC)
	ddr->err_disable = 0x0000008D;
	ddr->err_sbe = 0x00ff0000;
	#endif
	asm("sync;isync");

	udelay(500);

	#if defined (CONFIG_DDR_ECC)
	/* Enable ECC checking */
	ddr->sdram_cfg = (CONFIG_SYS_DDR_CONTROL \| 0x20000000);
	#else
	ddr->sdram_cfg = CONFIG_SYS_DDR_CONTROL;
	ddr->sdram_cfg_2 = CONFIG_SYS_DDR_CONTROL2;
	#endif
	asm("sync; isync");

	udelay(500);
	#endif
	return CONFIG_SYS_SDRAM_SIZE * 1024 * 1024;
	}
	#endif /* !defined(CONFIG_SPD_EEPROM) */


	#if defined(CONFIG_PCI)
	static struct pci_controller pci1_hose;
	#endif /* CONFIG_PCI */

	#ifdef CONFIG_PCI2
	static struct pci_controller pci2_hose;
	#endif /* CONFIG_PCI2 */

	int first_free_busno = 0;

	void pci_init_board(void)
	{
	#ifdef CONFIG_PCI1
	{
	volatile ccsr_fsl_pci_t pci = (ccsr_fsl_pci_t ) CONFIG_SYS_PCI1_ADDR;
	struct pci_controller *hose = &pci1_hose;
	struct pci_region *r = hose->regions;
	volatile immap_t immap = (immap_t ) CONFIG_SYS_CCSRBAR;
	volatile ccsr_gur_t *gur = &immap->im_gur;
	uint devdisr = gur->devdisr;
	uint io_sel = (gur->pordevsr & MPC8641_PORDEVSR_IO_SEL)
	>> MPC8641_PORDEVSR_IO_SEL_SHIFT;

	#ifdef DEBUG
	uint host1_agent = (gur->porbmsr & MPC8641_PORBMSR_HA)
	>> MPC8641_PORBMSR_HA_SHIFT;
	uint pex1_agent = (host1_agent == 0) \|\| (host1_agent == 1);
	#endif
	if ((io_sel == 2 \|\| io_sel == 3 \|\| io_sel == 5
	\|\| io_sel == 6 \|\| io_sel == 7 \|\| io_sel == 0xF)
	&& !(devdisr & MPC86xx_DEVDISR_PCIEX1)) {
	debug("PCI-EXPRESS 1: %s \n", pex1_agent ? "Agent" : "Host");
	debug("0x%08x=0x%08x ", &pci->pme_msg_det, pci->pme_msg_det);
	if (pci->pme_msg_det) {
	pci->pme_msg_det = 0xffffffff;
	debug(" with errors. Clearing. Now 0x%08x",
	pci->pme_msg_det);
	}
	debug("\n");

	/* outbound memory */
	pci_set_region(r++,
	CONFIG_SYS_PCI1_MEM_BUS,
	CONFIG_SYS_PCI1_MEM_PHYS,
	CONFIG_SYS_PCI1_MEM_SIZE,
	PCI_REGION_MEM);

	/* outbound io */
	pci_set_region(r++,
	CONFIG_SYS_PCI1_IO_BUS,
	CONFIG_SYS_PCI1_IO_PHYS,
	CONFIG_SYS_PCI1_IO_SIZE,
	PCI_REGION_IO);

	/* inbound */
	r += fsl_pci_setup_inbound_windows(r);

	hose->region_count = r - hose->regions;

	hose->first_busno=first_free_busno;
	pci_setup_indirect(hose, (int) &pci->cfg_addr, (int) &pci->cfg_data);

	fsl_pci_init(hose);

	first_free_busno=hose->last_busno+1;
	printf (" PCI-EXPRESS 1 on bus %02x - %02x\n",
	hose->first_busno,hose->last_busno);

	/*
	* Activate ULI1575 legacy chip by performing a fake
	* memory access. Needed to make ULI RTC work.
	*/
	in_be32((unsigned ) ((char )(CONFIG_SYS_PCI1_MEM_VIRT
	+ CONFIG_SYS_PCI1_MEM_SIZE - 0x1000000)));

	} else {
	puts("PCI-EXPRESS 1: Disabled\n");
	}
	}
	#else
	puts("PCI-EXPRESS1: Disabled\n");
	#endif /* CONFIG_PCI1 */

	#ifdef CONFIG_PCI2
	{
	volatile ccsr_fsl_pci_t pci = (ccsr_fsl_pci_t ) CONFIG_SYS_PCI2_ADDR;
	struct pci_controller *hose = &pci2_hose;
	struct pci_region *r = hose->regions;

	/* outbound memory */
	pci_set_region(r++,
	CONFIG_SYS_PCI2_MEM_BUS,
	CONFIG_SYS_PCI2_MEM_PHYS,
	CONFIG_SYS_PCI2_MEM_SIZE,
	PCI_REGION_MEM);

	/* outbound io */
	pci_set_region(r++,
	CONFIG_SYS_PCI2_IO_BUS,
	CONFIG_SYS_PCI2_IO_PHYS,
	CONFIG_SYS_PCI2_IO_SIZE,
	PCI_REGION_IO);

	/* inbound */
	r += fsl_pci_setup_inbound_windows(r);

	hose->region_count = r - hose->regions;

	hose->first_busno=first_free_busno;
	pci_setup_indirect(hose, (int) &pci->cfg_addr, (int) &pci->cfg_data);

	fsl_pci_init(hose);

	first_free_busno=hose->last_busno+1;
	printf (" PCI-EXPRESS 2 on bus %02x - %02x\n",
	hose->first_busno,hose->last_busno);
	}
	#else
	puts("PCI-EXPRESS 2: Disabled\n");
	#endif /* CONFIG_PCI2 */

	}


	#if defined(CONFIG_OF_BOARD_SETUP)
	void
	ft_board_setup(void blob, bd_t bd)
	{
	int off;
	u64 *tmp;
	u32 *addrcells;

	ft_cpu_setup(blob, bd);

	#ifdef CONFIG_PCI1
	ft_fsl_pci_setup(blob, "pci0", &pci1_hose);
	#endif
	#ifdef CONFIG_PCI2
	ft_fsl_pci_setup(blob, "pci1", &pci2_hose);
	#endif

	/*
	* Warn if it looks like the device tree doesn't match u-boot.
	* This is just an estimation, based on the location of CCSR,
	* which is defined by the "reg" property in the soc node.
	*/
	off = fdt_path_offset(blob, "/soc8641");
	addrcells = (u32 *)fdt_getprop(blob, 0, "#address-cells", NULL);
	tmp = (u64 *)fdt_getprop(blob, off, "reg", NULL);

	if (tmp) {
	u64 addr;
	if (addrcells && (*addrcells == 1))
	addr = (u32 )tmp;
	else
	addr = *tmp;

	if (addr != CONFIG_SYS_CCSRBAR_PHYS)
	printf("WARNING: The CCSRBAR address in your .dts "
	"does not match the address of the CCSR "
	"in u-boot. This means your .dts might "
	"be old.\n");
	}
	}
	#endif


	/*
	* get_board_sys_clk
	* Reads the FPGA on board for CONFIG_SYS_CLK_FREQ
	*/

	unsigned long
	get_board_sys_clk(ulong dummy)
	{
	u8 i, go_bit, rd_clks;
	ulong val = 0;
	u8 pixis_base = (u8 )PIXIS_BASE;

	go_bit = in_8(pixis_base + PIXIS_VCTL);
	go_bit &= 0x01;

	rd_clks = in_8(pixis_base + PIXIS_VCFGEN0);
	rd_clks &= 0x1C;

	/*
	* Only if both go bit and the SCLK bit in VCFGEN0 are set
	* should we be using the AUX register. Remember, we also set the
	* GO bit to boot from the alternate bank on the on-board flash
	*/

	if (go_bit) {
	if (rd_clks == 0x1c)
	i = in_8(pixis_base + PIXIS_AUX);
	else
	i = in_8(pixis_base + PIXIS_SPD);
	} else {
	i = in_8(pixis_base + PIXIS_SPD);
	}

	i &= 0x07;

	switch (i) {
	case 0:
	val = 33000000;
	break;
	case 1:
	val = 40000000;
	break;
	case 2:
	val = 50000000;
	break;
	case 3:
	val = 66000000;
	break;
	case 4:
	val = 83000000;
	break;
	case 5:
	val = 100000000;
	break;
	case 6:
	val = 134000000;
	break;
	case 7:
	val = 166000000;
	break;
	}

	return val;
	}

	int board_eth_init(bd_t *bis)
	{
	/* Initialize TSECs */
	cpu_eth_init(bis);
	return pci_eth_init(bis);
	}

	void board_reset(void)
	{
	u8 pixis_base = (u8 )PIXIS_BASE;

	out_8(pixis_base + PIXIS_RST, 0);

	while (1)
	;
	}

	#ifdef CONFIG_MP
	extern void cpu_mp_lmb_reserve(struct lmb *lmb);

	void board_lmb_reserve(struct lmb *lmb)
	{
	cpu_mp_lmb_reserve(lmb);
	}
	#endif