board/amcc/taishan/taishan.c - u-boot - Git at Google

 /*
  *  Copyright (C) 2004 PaulReynolds@lhsolutions.com
  *
  * (C) Copyright 2007
  * Stefan Roese, DENX Software Engineering, sr@denx.de.
  *
  * 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 <asm/processor.h>
 #include <spd_sdram.h>
 #include <ppc4xx_enet.h>

 #ifdef CFG_INIT_SHOW_RESET_REG
 void show_reset_reg(void);
 #endif

 int lcd_init(void);

 int board_early_init_f (void)
 {
 	unsigned long reg;
 	volatile unsigned int *GpioOdr;
 	volatile unsigned int *GpioTcr;
 	volatile unsigned int *GpioOr;

 	/*-------------------------------------------------------------------------+
 	  | Initialize EBC CONFIG
 	  +-------------------------------------------------------------------------*/
 	mtebc(xbcfg, EBC_CFG_LE_UNLOCK |
 	      EBC_CFG_PTD_ENABLE | EBC_CFG_RTC_64PERCLK |
 	      EBC_CFG_ATC_PREVIOUS | EBC_CFG_DTC_PREVIOUS |
 	      EBC_CFG_CTC_PREVIOUS | EBC_CFG_EMC_DEFAULT |
 	      EBC_CFG_PME_DISABLE | EBC_CFG_PR_32);

 	/*-------------------------------------------------------------------------+
 	  | 64MB FLASH. Initialize bank 0 with default values.
 	  +-------------------------------------------------------------------------*/
 	mtebc(pb0ap, EBC_BXAP_BME_DISABLED|EBC_BXAP_TWT_ENCODE(15) |
 	      EBC_BXAP_BCE_DISABLE |
 	      EBC_BXAP_CSN_ENCODE(1) | EBC_BXAP_OEN_ENCODE(1) |
 	      EBC_BXAP_WBN_ENCODE(1) | EBC_BXAP_WBF_ENCODE(1) |
 	      EBC_BXAP_TH_ENCODE(3) | EBC_BXAP_RE_DISABLED |
 	      EBC_BXAP_BEM_WRITEONLY |
 	      EBC_BXAP_PEN_DISABLED);
 	mtebc(pb0cr, EBC_BXCR_BAS_ENCODE(CFG_FLASH_BASE) |
 	      EBC_BXCR_BS_64MB | EBC_BXCR_BU_RW|EBC_BXCR_BW_32BIT);

 	/*-------------------------------------------------------------------------+
 	  | FPGA. Initialize bank 1 with default values.
 	  +-------------------------------------------------------------------------*/
 	mtebc(pb1ap, EBC_BXAP_BME_DISABLED|EBC_BXAP_TWT_ENCODE(5) |
 	      EBC_BXAP_BCE_DISABLE |
 	      EBC_BXAP_CSN_ENCODE(1) | EBC_BXAP_OEN_ENCODE(1) |
 	      EBC_BXAP_WBN_ENCODE(1) | EBC_BXAP_WBF_ENCODE(1) |
 	      EBC_BXAP_TH_ENCODE(3) | EBC_BXAP_RE_DISABLED |
 	      EBC_BXAP_BEM_WRITEONLY |
 	      EBC_BXAP_PEN_DISABLED);
 	mtebc(pb1cr, EBC_BXCR_BAS_ENCODE(0x41000000) |
 	      EBC_BXCR_BS_1MB | EBC_BXCR_BU_RW | EBC_BXCR_BW_8BIT);

 	/*-------------------------------------------------------------------------+
 	  | LCM. Initialize bank 2 with default values.
 	  +-------------------------------------------------------------------------*/
 	mtebc(pb2ap, EBC_BXAP_BME_DISABLED | EBC_BXAP_TWT_ENCODE(64) |
 	      EBC_BXAP_BCE_DISABLE |
 	      EBC_BXAP_CSN_ENCODE(3) | EBC_BXAP_OEN_ENCODE(3) |
 	      EBC_BXAP_WBN_ENCODE(3) | EBC_BXAP_WBF_ENCODE(3) |
 	      EBC_BXAP_TH_ENCODE(7) | EBC_BXAP_RE_DISABLED |
 	      EBC_BXAP_BEM_WRITEONLY |
 	      EBC_BXAP_PEN_DISABLED);
 	mtebc(pb2cr, EBC_BXCR_BAS_ENCODE(0x42000000) |
 	      EBC_BXCR_BS_1MB | EBC_BXCR_BU_RW|EBC_BXCR_BW_8BIT);

 	/*-------------------------------------------------------------------------+
 	  | TMP. Initialize bank 3 with default values.
 	  +-------------------------------------------------------------------------*/
 	mtebc(pb3ap, EBC_BXAP_BME_DISABLED | EBC_BXAP_TWT_ENCODE(128) |
 	      EBC_BXAP_BCE_DISABLE |
 	      EBC_BXAP_CSN_ENCODE(3) | EBC_BXAP_OEN_ENCODE(3) |
 	      EBC_BXAP_WBN_ENCODE(3) | EBC_BXAP_WBF_ENCODE(3) |
 	      EBC_BXAP_TH_ENCODE(7) | EBC_BXAP_RE_DISABLED |
 	      EBC_BXAP_BEM_WRITEONLY |
 	      EBC_BXAP_PEN_DISABLED);
 	mtebc(pb3cr, EBC_BXCR_BAS_ENCODE(0x48000000) |
 	      EBC_BXCR_BS_64MB | EBC_BXCR_BU_RW | EBC_BXCR_BW_32BIT);

 	/*-------------------------------------------------------------------------+
 	  | Connector 4~7. Initialize bank 3~ 7 with default values.
 	  +-------------------------------------------------------------------------*/
 	mtebc(pb4ap,0);
 	mtebc(pb4cr,0);
 	mtebc(pb5ap,0);
 	mtebc(pb5cr,0);
 	mtebc(pb6ap,0);
 	mtebc(pb6cr,0);
 	mtebc(pb7ap,0);
 	mtebc(pb7cr,0);

 	/*--------------------------------------------------------------------
 	 * Setup the interrupt controller polarities, triggers, etc.
 	 *-------------------------------------------------------------------*/
 	mtdcr (uic0sr, 0xffffffff);	/* clear all */
 	mtdcr (uic0er, 0x00000000);	/* disable all */
 	mtdcr (uic0cr, 0x00000009);	/* SMI & UIC1 crit are critical */
 	mtdcr (uic0pr, 0xfffffe13);	/* per ref-board manual */
 	mtdcr (uic0tr, 0x01c00008);	/* per ref-board manual */
 	mtdcr (uic0vr, 0x00000001);	/* int31 highest, base=0x000 */
 	mtdcr (uic0sr, 0xffffffff);	/* clear all */

 	mtdcr (uic1sr, 0xffffffff);	/* clear all */
 	mtdcr (uic1er, 0x00000000);	/* disable all */
 	mtdcr (uic1cr, 0x00000000);	/* all non-critical */
 	mtdcr (uic1pr, 0xffffe0ff);	/* per ref-board manual */
 	mtdcr (uic1tr, 0x00ffc000);	/* per ref-board manual */
 	mtdcr (uic1vr, 0x00000001);	/* int31 highest, base=0x000 */
 	mtdcr (uic1sr, 0xffffffff);	/* clear all */

 	mtdcr (uic2sr, 0xffffffff);	/* clear all */
 	mtdcr (uic2er, 0x00000000);	/* disable all */
 	mtdcr (uic2cr, 0x00000000);	/* all non-critical */
 	mtdcr (uic2pr, 0xffffffff);	/* per ref-board manual */
 	mtdcr (uic2tr, 0x00ff8c0f);	/* per ref-board manual */
 	mtdcr (uic2vr, 0x00000001);	/* int31 highest, base=0x000 */
 	mtdcr (uic2sr, 0xffffffff);	/* clear all */

 	mtdcr (uicb0sr, 0xfc000000);	/* clear all */
 	mtdcr (uicb0er, 0x00000000);	/* disable all */
 	mtdcr (uicb0cr, 0x00000000);	/* all non-critical */
 	mtdcr (uicb0pr, 0xfc000000);	/* */
 	mtdcr (uicb0tr, 0x00000000);	/* */
 	mtdcr (uicb0vr, 0x00000001);	/* */

 	/* Enable two GPIO 10~11 and TraceA signal */
 	mfsdr(sdr_pfc0,reg);
 	reg |= 0x00300000;
 	mtsdr(sdr_pfc0,reg);

 	mfsdr(sdr_pfc1,reg);
 	reg |= 0x00100000;
 	mtsdr(sdr_pfc1,reg);

 	/* Set GPIO 10 and 11 as output */
 	GpioOdr	= (volatile unsigned int*)(CFG_PERIPHERAL_BASE+0x718);
 	GpioTcr = (volatile unsigned int*)(CFG_PERIPHERAL_BASE+0x704);
 	GpioOr  = (volatile unsigned int*)(CFG_PERIPHERAL_BASE+0x700);

 	*GpioOdr &= ~(0x00300000);
 	*GpioTcr |= 0x00300000;
 	*GpioOr  |= 0x00300000;

 	return 0;
 }

 int misc_init_r(void)
 {
 	lcd_init();

 	return 0;
 }

 int checkboard (void)
 {
 	char *s = getenv ("serial#");

 	printf ("Board: Taishan - AMCC PPC440GX Evaluation Board");
 	if (s != NULL) {
 		puts (", serial# ");
 		puts (s);
 	}
 	putc ('\n');

 #ifdef CFG_INIT_SHOW_RESET_REG
 	show_reset_reg();
 #endif

 	return (0);
 }

 #if defined(CFG_DRAM_TEST)
 int testdram (void)
 {
 	uint *pstart = (uint *) 0x04000000;
 	uint *pend = (uint *) 0x0fc00000;
 	uint *p;

 	for (p = pstart; p < pend; p++)
 		*p = 0xaaaaaaaa;

 	for (p = pstart; p < pend; p++) {
 		if (*p != 0xaaaaaaaa) {
 			printf ("SDRAM test fails at: %08x\n", (uint) p);
 			return 1;
 		}
 	}

 	for (p = pstart; p < pend; p++)
 		*p = 0x55555555;

 	for (p = pstart; p < pend; p++) {
 		if (*p != 0x55555555) {
 			printf ("SDRAM test fails at: %08x\n", (uint) p);
 			return 1;
 		}
 	}
 	return 0;
 }
 #endif

 /*************************************************************************
  *  pci_pre_init
  *
  *  This routine is called just prior to registering the hose and gives
  *  the board the opportunity to check things. Returning a value of zero
  *  indicates that things are bad & PCI initialization should be aborted.
  *
  *	Different boards may wish to customize the pci controller structure
  *	(add regions, override default access routines, etc) or perform
  *	certain pre-initialization actions.
  *
  ************************************************************************/
 #if defined(CONFIG_PCI)
 int pci_pre_init(struct pci_controller * hose )
 {
 	unsigned long strap;

 	/*--------------------------------------------------------------------------+
 	 *	The ocotea board is always configured as the host & requires the
 	 *	PCI arbiter to be enabled.
 	 *--------------------------------------------------------------------------*/
 	mfsdr(sdr_sdstp1, strap);
 	if( (strap & SDR0_SDSTP1_PAE_MASK) == 0 ){
 		printf("PCI: SDR0_STRP1[%08lX] - PCI Arbiter disabled.\n",strap);
 		return 0;
 	}

 	return 1;
 }
 #endif /* defined(CONFIG_PCI) */

 /*************************************************************************
  *  pci_target_init
  *
  *	The bootstrap configuration provides default settings for the pci
  *	inbound map (PIM). But the bootstrap config choices are limited and
  *	may not be sufficient for a given board.
  *
  ************************************************************************/
 #if defined(CONFIG_PCI) && defined(CFG_PCI_TARGET_INIT)
 void pci_target_init(struct pci_controller * hose )
 {
 	DECLARE_GLOBAL_DATA_PTR;

 	/*--------------------------------------------------------------------------+
 	 * Disable everything
 	 *--------------------------------------------------------------------------*/
 	out32r( PCIX0_PIM0SA, 0 ); /* disable */
 	out32r( PCIX0_PIM1SA, 0 ); /* disable */
 	out32r( PCIX0_PIM2SA, 0 ); /* disable */
 	out32r( PCIX0_EROMBA, 0 ); /* disable expansion rom */

 	/*--------------------------------------------------------------------------+
 	 * Map all of SDRAM to PCI address 0x0000_0000. Note that the 440 strapping
 	 * options to not support sizes such as 128/256 MB.
 	 *--------------------------------------------------------------------------*/
 	out32r( PCIX0_PIM0LAL, CFG_SDRAM_BASE );
 	out32r( PCIX0_PIM0LAH, 0 );
 	out32r( PCIX0_PIM0SA, ~(gd->ram_size - 1) | 1 );

 	out32r( PCIX0_BAR0, 0 );

 	/*--------------------------------------------------------------------------+
 	 * Program the board's subsystem id/vendor id
 	 *--------------------------------------------------------------------------*/
 	out16r( PCIX0_SBSYSVID, CFG_PCI_SUBSYS_VENDORID );
 	out16r( PCIX0_SBSYSID, CFG_PCI_SUBSYS_DEVICEID );

 	out16r( PCIX0_CMD, in16r(PCIX0_CMD) | PCI_COMMAND_MEMORY );
 }
 #endif /* defined(CONFIG_PCI) && defined(CFG_PCI_TARGET_INIT) */

 /*************************************************************************
  *  is_pci_host
  *
  *	This routine is called to determine if a pci scan should be
  *	performed. With various hardware environments (especially cPCI and
  *	PPMC) it's insufficient to depend on the state of the arbiter enable
  *	bit in the strap register, or generic host/adapter assumptions.
  *
  *	Rather than hard-code a bad assumption in the general 440 code, the
  *	440 pci code requires the board to decide at runtime.
  *
  *	Return 0 for adapter mode, non-zero for host (monarch) mode.
  *
  *
  ************************************************************************/
 #if defined(CONFIG_PCI)
 int is_pci_host(struct pci_controller *hose)
 {
 	/* The ocotea board is always configured as host. */
 	return(1);
 }
 #endif /* defined(CONFIG_PCI) */

 #ifdef CONFIG_POST
 /*
  * Returns 1 if keys pressed to start the power-on long-running tests
  * Called from board_init_f().
  */
 int post_hotkeys_pressed(void)
 {
 	return (ctrlc());
 }
 #endif
	/*
	* Copyright (C) 2004 PaulReynolds@lhsolutions.com
	*
	* (C) Copyright 2007
	* Stefan Roese, DENX Software Engineering, sr@denx.de.
	*
	* 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 <asm/processor.h>
	#include <spd_sdram.h>
	#include <ppc4xx_enet.h>

	#ifdef CFG_INIT_SHOW_RESET_REG
	void show_reset_reg(void);
	#endif

	int lcd_init(void);

	int board_early_init_f (void)
	{
	unsigned long reg;
	volatile unsigned int *GpioOdr;
	volatile unsigned int *GpioTcr;
	volatile unsigned int *GpioOr;

	/*-------------------------------------------------------------------------+
	\| Initialize EBC CONFIG
	+-------------------------------------------------------------------------*/
	mtebc(xbcfg, EBC_CFG_LE_UNLOCK \|
	EBC_CFG_PTD_ENABLE \| EBC_CFG_RTC_64PERCLK \|
	EBC_CFG_ATC_PREVIOUS \| EBC_CFG_DTC_PREVIOUS \|
	EBC_CFG_CTC_PREVIOUS \| EBC_CFG_EMC_DEFAULT \|
	EBC_CFG_PME_DISABLE \| EBC_CFG_PR_32);

	/*-------------------------------------------------------------------------+
	\| 64MB FLASH. Initialize bank 0 with default values.
	+-------------------------------------------------------------------------*/
	mtebc(pb0ap, EBC_BXAP_BME_DISABLED\|EBC_BXAP_TWT_ENCODE(15) \|
	EBC_BXAP_BCE_DISABLE \|
	EBC_BXAP_CSN_ENCODE(1) \| EBC_BXAP_OEN_ENCODE(1) \|
	EBC_BXAP_WBN_ENCODE(1) \| EBC_BXAP_WBF_ENCODE(1) \|
	EBC_BXAP_TH_ENCODE(3) \| EBC_BXAP_RE_DISABLED \|
	EBC_BXAP_BEM_WRITEONLY \|
	EBC_BXAP_PEN_DISABLED);
	mtebc(pb0cr, EBC_BXCR_BAS_ENCODE(CFG_FLASH_BASE) \|
	EBC_BXCR_BS_64MB \| EBC_BXCR_BU_RW\|EBC_BXCR_BW_32BIT);

	/*-------------------------------------------------------------------------+
	\| FPGA. Initialize bank 1 with default values.
	+-------------------------------------------------------------------------*/
	mtebc(pb1ap, EBC_BXAP_BME_DISABLED\|EBC_BXAP_TWT_ENCODE(5) \|
	EBC_BXAP_BCE_DISABLE \|
	EBC_BXAP_CSN_ENCODE(1) \| EBC_BXAP_OEN_ENCODE(1) \|
	EBC_BXAP_WBN_ENCODE(1) \| EBC_BXAP_WBF_ENCODE(1) \|
	EBC_BXAP_TH_ENCODE(3) \| EBC_BXAP_RE_DISABLED \|
	EBC_BXAP_BEM_WRITEONLY \|
	EBC_BXAP_PEN_DISABLED);
	mtebc(pb1cr, EBC_BXCR_BAS_ENCODE(0x41000000) \|
	EBC_BXCR_BS_1MB \| EBC_BXCR_BU_RW \| EBC_BXCR_BW_8BIT);

	/*-------------------------------------------------------------------------+
	\| LCM. Initialize bank 2 with default values.
	+-------------------------------------------------------------------------*/
	mtebc(pb2ap, EBC_BXAP_BME_DISABLED \| EBC_BXAP_TWT_ENCODE(64) \|
	EBC_BXAP_BCE_DISABLE \|
	EBC_BXAP_CSN_ENCODE(3) \| EBC_BXAP_OEN_ENCODE(3) \|
	EBC_BXAP_WBN_ENCODE(3) \| EBC_BXAP_WBF_ENCODE(3) \|
	EBC_BXAP_TH_ENCODE(7) \| EBC_BXAP_RE_DISABLED \|
	EBC_BXAP_BEM_WRITEONLY \|
	EBC_BXAP_PEN_DISABLED);
	mtebc(pb2cr, EBC_BXCR_BAS_ENCODE(0x42000000) \|
	EBC_BXCR_BS_1MB \| EBC_BXCR_BU_RW\|EBC_BXCR_BW_8BIT);

	/*-------------------------------------------------------------------------+
	\| TMP. Initialize bank 3 with default values.
	+-------------------------------------------------------------------------*/
	mtebc(pb3ap, EBC_BXAP_BME_DISABLED \| EBC_BXAP_TWT_ENCODE(128) \|
	EBC_BXAP_BCE_DISABLE \|
	EBC_BXAP_CSN_ENCODE(3) \| EBC_BXAP_OEN_ENCODE(3) \|
	EBC_BXAP_WBN_ENCODE(3) \| EBC_BXAP_WBF_ENCODE(3) \|
	EBC_BXAP_TH_ENCODE(7) \| EBC_BXAP_RE_DISABLED \|
	EBC_BXAP_BEM_WRITEONLY \|
	EBC_BXAP_PEN_DISABLED);
	mtebc(pb3cr, EBC_BXCR_BAS_ENCODE(0x48000000) \|
	EBC_BXCR_BS_64MB \| EBC_BXCR_BU_RW \| EBC_BXCR_BW_32BIT);

	/*-------------------------------------------------------------------------+
	\| Connector 4~7. Initialize bank 3~ 7 with default values.
	+-------------------------------------------------------------------------*/
	mtebc(pb4ap,0);
	mtebc(pb4cr,0);
	mtebc(pb5ap,0);
	mtebc(pb5cr,0);
	mtebc(pb6ap,0);
	mtebc(pb6cr,0);
	mtebc(pb7ap,0);
	mtebc(pb7cr,0);

	/*--------------------------------------------------------------------
	* Setup the interrupt controller polarities, triggers, etc.
	-------------------------------------------------------------------/
	mtdcr (uic0sr, 0xffffffff); /* clear all */
	mtdcr (uic0er, 0x00000000); /* disable all */
	mtdcr (uic0cr, 0x00000009); /* SMI & UIC1 crit are critical */
	mtdcr (uic0pr, 0xfffffe13); /* per ref-board manual */
	mtdcr (uic0tr, 0x01c00008); /* per ref-board manual */
	mtdcr (uic0vr, 0x00000001); /* int31 highest, base=0x000 */
	mtdcr (uic0sr, 0xffffffff); /* clear all */

	mtdcr (uic1sr, 0xffffffff); /* clear all */
	mtdcr (uic1er, 0x00000000); /* disable all */
	mtdcr (uic1cr, 0x00000000); /* all non-critical */
	mtdcr (uic1pr, 0xffffe0ff); /* per ref-board manual */
	mtdcr (uic1tr, 0x00ffc000); /* per ref-board manual */
	mtdcr (uic1vr, 0x00000001); /* int31 highest, base=0x000 */
	mtdcr (uic1sr, 0xffffffff); /* clear all */

	mtdcr (uic2sr, 0xffffffff); /* clear all */
	mtdcr (uic2er, 0x00000000); /* disable all */
	mtdcr (uic2cr, 0x00000000); /* all non-critical */
	mtdcr (uic2pr, 0xffffffff); /* per ref-board manual */
	mtdcr (uic2tr, 0x00ff8c0f); /* per ref-board manual */
	mtdcr (uic2vr, 0x00000001); /* int31 highest, base=0x000 */
	mtdcr (uic2sr, 0xffffffff); /* clear all */

	mtdcr (uicb0sr, 0xfc000000); /* clear all */
	mtdcr (uicb0er, 0x00000000); /* disable all */
	mtdcr (uicb0cr, 0x00000000); /* all non-critical */
	mtdcr (uicb0pr, 0xfc000000); /* */
	mtdcr (uicb0tr, 0x00000000); /* */
	mtdcr (uicb0vr, 0x00000001); /* */

	/* Enable two GPIO 10~11 and TraceA signal */
	mfsdr(sdr_pfc0,reg);
	reg \|= 0x00300000;
	mtsdr(sdr_pfc0,reg);

	mfsdr(sdr_pfc1,reg);
	reg \|= 0x00100000;
	mtsdr(sdr_pfc1,reg);

	/* Set GPIO 10 and 11 as output */
	GpioOdr = (volatile unsigned int*)(CFG_PERIPHERAL_BASE+0x718);
	GpioTcr = (volatile unsigned int*)(CFG_PERIPHERAL_BASE+0x704);
	GpioOr = (volatile unsigned int*)(CFG_PERIPHERAL_BASE+0x700);

	*GpioOdr &= ~(0x00300000);
	*GpioTcr \|= 0x00300000;
	*GpioOr \|= 0x00300000;

	return 0;
	}

	int misc_init_r(void)
	{
	lcd_init();

	return 0;
	}

	int checkboard (void)
	{
	char *s = getenv ("serial#");

	printf ("Board: Taishan - AMCC PPC440GX Evaluation Board");
	if (s != NULL) {
	puts (", serial# ");
	puts (s);
	}
	putc ('\n');

	#ifdef CFG_INIT_SHOW_RESET_REG
	show_reset_reg();
	#endif

	return (0);
	}

	#if defined(CFG_DRAM_TEST)
	int testdram (void)
	{
	uint pstart = (uint ) 0x04000000;
	uint pend = (uint ) 0x0fc00000;
	uint *p;

	for (p = pstart; p < pend; p++)
	*p = 0xaaaaaaaa;

	for (p = pstart; p < pend; p++) {
	if (*p != 0xaaaaaaaa) {
	printf ("SDRAM test fails at: %08x\n", (uint) p);
	return 1;
	}
	}

	for (p = pstart; p < pend; p++)
	*p = 0x55555555;

	for (p = pstart; p < pend; p++) {
	if (*p != 0x55555555) {
	printf ("SDRAM test fails at: %08x\n", (uint) p);
	return 1;
	}
	}
	return 0;
	}
	#endif

	/*************************************************************************
	* pci_pre_init
	*
	* This routine is called just prior to registering the hose and gives
	* the board the opportunity to check things. Returning a value of zero
	* indicates that things are bad & PCI initialization should be aborted.
	*
	* Different boards may wish to customize the pci controller structure
	* (add regions, override default access routines, etc) or perform
	* certain pre-initialization actions.
	*
	************************************************************************/
	#if defined(CONFIG_PCI)
	int pci_pre_init(struct pci_controller * hose )
	{
	unsigned long strap;

	/*--------------------------------------------------------------------------+
	* The ocotea board is always configured as the host & requires the
	* PCI arbiter to be enabled.
	--------------------------------------------------------------------------/
	mfsdr(sdr_sdstp1, strap);
	if( (strap & SDR0_SDSTP1_PAE_MASK) == 0 ){
	printf("PCI: SDR0_STRP1[%08lX] - PCI Arbiter disabled.\n",strap);
	return 0;
	}

	return 1;
	}
	#endif /* defined(CONFIG_PCI) */

	/*************************************************************************
	* pci_target_init
	*
	* The bootstrap configuration provides default settings for the pci
	* inbound map (PIM). But the bootstrap config choices are limited and
	* may not be sufficient for a given board.
	*
	************************************************************************/
	#if defined(CONFIG_PCI) && defined(CFG_PCI_TARGET_INIT)
	void pci_target_init(struct pci_controller * hose )
	{
	DECLARE_GLOBAL_DATA_PTR;

	/*--------------------------------------------------------------------------+
	* Disable everything
	--------------------------------------------------------------------------/
	out32r( PCIX0_PIM0SA, 0 ); /* disable */
	out32r( PCIX0_PIM1SA, 0 ); /* disable */
	out32r( PCIX0_PIM2SA, 0 ); /* disable */
	out32r( PCIX0_EROMBA, 0 ); /* disable expansion rom */

	/*--------------------------------------------------------------------------+
	* Map all of SDRAM to PCI address 0x0000_0000. Note that the 440 strapping
	* options to not support sizes such as 128/256 MB.
	--------------------------------------------------------------------------/
	out32r( PCIX0_PIM0LAL, CFG_SDRAM_BASE );
	out32r( PCIX0_PIM0LAH, 0 );
	out32r( PCIX0_PIM0SA, ~(gd->ram_size - 1) \| 1 );

	out32r( PCIX0_BAR0, 0 );

	/*--------------------------------------------------------------------------+
	* Program the board's subsystem id/vendor id
	--------------------------------------------------------------------------/
	out16r( PCIX0_SBSYSVID, CFG_PCI_SUBSYS_VENDORID );
	out16r( PCIX0_SBSYSID, CFG_PCI_SUBSYS_DEVICEID );

	out16r( PCIX0_CMD, in16r(PCIX0_CMD) \| PCI_COMMAND_MEMORY );
	}
	#endif /* defined(CONFIG_PCI) && defined(CFG_PCI_TARGET_INIT) */

	/*************************************************************************
	* is_pci_host
	*
	* This routine is called to determine if a pci scan should be
	* performed. With various hardware environments (especially cPCI and
	* PPMC) it's insufficient to depend on the state of the arbiter enable
	* bit in the strap register, or generic host/adapter assumptions.
	*
	* Rather than hard-code a bad assumption in the general 440 code, the
	* 440 pci code requires the board to decide at runtime.
	*
	* Return 0 for adapter mode, non-zero for host (monarch) mode.
	*
	*
	************************************************************************/
	#if defined(CONFIG_PCI)
	int is_pci_host(struct pci_controller *hose)
	{
	/* The ocotea board is always configured as host. */
	return(1);
	}
	#endif /* defined(CONFIG_PCI) */

	#ifdef CONFIG_POST
	/*
	* Returns 1 if keys pressed to start the power-on long-running tests
	* Called from board_init_f().
	*/
	int post_hotkeys_pressed(void)
	{
	return (ctrlc());
	}
	#endif