board/sbc8548/sbc8548.c - 3rdparty/u-boot - Gitiles Standalone

 /*
  * Copyright 2007 Wind River Systemes, Inc. <www.windriver.com>
  * Copyright 2007 Embedded Specialties, Inc.
  *
  * Copyright 2004, 2007 Freescale Semiconductor.
  *
  * (C) Copyright 2002 Scott McNutt <smcnutt@artesyncp.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., 59 Temple Place, Suite 330, Boston,
  * MA 02111-1307 USA
  */

 #include <common.h>
 #include <pci.h>
 #include <asm/processor.h>
 #include <asm/immap_85xx.h>
 #include <asm/immap_fsl_pci.h>
 #include <spd.h>
 #include <miiphy.h>
 #include <libfdt.h>
 #include <fdt_support.h>

 #if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
 extern void ddr_enable_ecc(unsigned int dram_size);
 #endif

 DECLARE_GLOBAL_DATA_PTR;

 extern long int spd_sdram(void);

 void local_bus_init(void);
 void sdram_init(void);
 long int fixed_sdram (void);

 int board_early_init_f (void)
 {
 	return 0;
 }

 int checkboard (void)
 {
 	volatile ccsr_gur_t *gur = (void *)(CFG_MPC85xx_GUTS_ADDR);
 	volatile ccsr_local_ecm_t *ecm = (void *)(CFG_MPC85xx_ECM_ADDR);

 	printf ("Board: Wind River SBC8548 Rev. 0x%01x\n",
 			(volatile)(*(u_char *)CFG_BD_REV) >> 4);

 	/*
 	 * Initialize local bus.
 	 */
 	local_bus_init ();

 	/*
 	 * Fix CPU2 errata: A core hang possible while executing a
 	 * msync instruction and a snoopable transaction from an I/O
 	 * master tagged to make quick forward progress is present.
 	 */
 	ecm->eebpcr |= (1 << 16);

 	/*
 	 * Hack TSEC 3 and 4 IO voltages.
 	 */
 	gur->tsec34ioovcr = 0xe7e0;	/*  1110 0111 1110 0xxx */

 	ecm->eedr = 0xffffffff;		/* clear ecm errors */
 	ecm->eeer = 0xffffffff;		/* enable ecm errors */
 	return 0;
 }

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

 	puts("Initializing\n");

 #if defined(CONFIG_DDR_DLL)
 	{
 		/*
 		 * Work around to stabilize DDR DLL MSYNC_IN.
 		 * Errata DDR9 seems to have been fixed.
 		 * This is now the workaround for Errata DDR11:
 		 *    Override DLL = 1, Course Adj = 1, Tap Select = 0
 		 */

 		volatile ccsr_gur_t *gur = (void *)(CFG_MPC85xx_GUTS_ADDR);

 		gur->ddrdllcr = 0x81000000;
 		asm("sync;isync;msync");
 		udelay(200);
 	}
 #endif

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

 #if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
 	/*
 	 * Initialize and enable DDR ECC.
 	 */
 	ddr_enable_ecc(dram_size);
 #endif
 	/*
 	 * SDRAM Initialization
 	 */
 	sdram_init();

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

 /*
  * Initialize Local Bus
  */
 void
 local_bus_init(void)
 {
 	volatile ccsr_gur_t *gur = (void *)(CFG_MPC85xx_GUTS_ADDR);
 	volatile ccsr_lbc_t *lbc = (void *)(CFG_MPC85xx_LBC_ADDR);

 	uint clkdiv;
 	uint lbc_hz;
 	sys_info_t sysinfo;

 	get_sys_info(&sysinfo);
 	clkdiv = (lbc->lcrr & 0x0f) * 2;
 	lbc_hz = sysinfo.freqSystemBus / 1000000 / clkdiv;

 	gur->lbiuiplldcr1 = 0x00078080;
 	if (clkdiv == 16) {
 		gur->lbiuiplldcr0 = 0x7c0f1bf0;
 	} else if (clkdiv == 8) {
 		gur->lbiuiplldcr0 = 0x6c0f1bf0;
 	} else if (clkdiv == 4) {
 		gur->lbiuiplldcr0 = 0x5c0f1bf0;
 	}

 	lbc->lcrr |= 0x00030000;

 	asm("sync;isync;msync");

 	lbc->ltesr = 0xffffffff;	/* Clear LBC error interrupts */
 	lbc->lteir = 0xffffffff;	/* Enable LBC error interrupts */
 }

 /*
  * Initialize SDRAM memory on the Local Bus.
  */
 void
 sdram_init(void)
 {
 #if defined(CFG_OR3_PRELIM) && defined(CFG_BR3_PRELIM)

 	uint idx;
 	volatile ccsr_lbc_t *lbc = (void *)(CFG_MPC85xx_LBC_ADDR);
 	uint *sdram_addr = (uint *)CFG_LBC_SDRAM_BASE;
 	uint lsdmr_common;

 	puts("    SDRAM: ");

 	print_size (CFG_LBC_SDRAM_SIZE * 1024 * 1024, "\n");

 	/*
 	 * Setup SDRAM Base and Option Registers
 	 */
 	lbc->or3 = CFG_OR3_PRELIM;
 	asm("msync");

 	lbc->br3 = CFG_BR3_PRELIM;
 	asm("msync");

 	lbc->lbcr = CFG_LBC_LBCR;
 	asm("msync");


 	lbc->lsrt = CFG_LBC_LSRT;
 	lbc->mrtpr = CFG_LBC_MRTPR;
 	asm("msync");

 	/*
 	 * MPC8548 uses "new" 15-16 style addressing.
 	 */
 	lsdmr_common = CFG_LBC_LSDMR_COMMON;
 	lsdmr_common |= CFG_LBC_LSDMR_BSMA1516;

 	/*
 	 * Issue PRECHARGE ALL command.
 	 */
 	lbc->lsdmr = lsdmr_common | CFG_LBC_LSDMR_OP_PCHALL;
 	asm("sync;msync");
 	*sdram_addr = 0xff;
 	ppcDcbf((unsigned long) sdram_addr);
 	udelay(100);

 	/*
 	 * Issue 8 AUTO REFRESH commands.
 	 */
 	for (idx = 0; idx < 8; idx++) {
 		lbc->lsdmr = lsdmr_common | CFG_LBC_LSDMR_OP_ARFRSH;
 		asm("sync;msync");
 		*sdram_addr = 0xff;
 		ppcDcbf((unsigned long) sdram_addr);
 		udelay(100);
 	}

 	/*
 	 * Issue 8 MODE-set command.
 	 */
 	lbc->lsdmr = lsdmr_common | CFG_LBC_LSDMR_OP_MRW;
 	asm("sync;msync");
 	*sdram_addr = 0xff;
 	ppcDcbf((unsigned long) sdram_addr);
 	udelay(100);

 	/*
 	 * Issue NORMAL OP command.
 	 */
 	lbc->lsdmr = lsdmr_common | CFG_LBC_LSDMR_OP_NORMAL;
 	asm("sync;msync");
 	*sdram_addr = 0xff;
 	ppcDcbf((unsigned long) sdram_addr);
 	udelay(200);    /* Overkill. Must wait > 200 bus cycles */

 #endif	/* enable SDRAM init */
 }

 #if defined(CFG_DRAM_TEST)
 int
 testdram(void)
 {
 	uint *pstart = (uint *) CFG_MEMTEST_START;
 	uint *pend = (uint *) CFG_MEMTEST_END;
 	uint *p;

 	printf("Testing DRAM from 0x%08x to 0x%08x\n",
 	       CFG_MEMTEST_START,
 	       CFG_MEMTEST_END);

 	printf("DRAM test phase 1:\n");
 	for (p = pstart; p < pend; p++)
 		*p = 0xaaaaaaaa;

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

 	printf("DRAM test phase 2:\n");
 	for (p = pstart; p < pend; p++)
 		*p = 0x55555555;

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

 	printf("DRAM test passed.\n");
 	return 0;
 }
 #endif

 #if	!defined(CONFIG_SPD_EEPROM)
 /*************************************************************************
  *  fixed_sdram init -- doesn't use serial presence detect.
  *  assumes 256MB DDR2 SDRAM SODIMM, without ECC, running at DDR400 speed.
  ************************************************************************/
 long int fixed_sdram (void)
 {
     #define CFG_DDR_CONTROL 0xc300c000

 	volatile ccsr_ddr_t *ddr = (void *)(CFG_MPC85xx_DDR_ADDR);

 	ddr->cs0_bnds		= 0x0000007f;
 	ddr->cs1_bnds		= 0x008000ff;
 	ddr->cs2_bnds		= 0x00000000;
 	ddr->cs3_bnds		= 0x00000000;
 	ddr->cs0_config		= 0x80010101;
 	ddr->cs1_config		= 0x80010101;
 	ddr->cs2_config		= 0x00000000;
 	ddr->cs3_config		= 0x00000000;
 	ddr->ext_refrec		= 0x00000000;
 	ddr->timing_cfg_0	= 0x00220802;
 	ddr->timing_cfg_1	= 0x38377322;
 	ddr->timing_cfg_2	= 0x0fa044C7;
 	ddr->sdram_cfg		= 0x4300C000;
 	ddr->sdram_cfg_2	= 0x24401000;
 	ddr->sdram_mode		= 0x23C00542;
 	ddr->sdram_mode_2	= 0x00000000;
 	ddr->sdram_interval	= 0x05080100;
 	ddr->sdram_md_cntl	= 0x00000000;
 	ddr->sdram_data_init	= 0x00000000;
 	ddr->sdram_clk_cntl 	= 0x03800000;
 	asm("sync;isync;msync");
 	udelay(500);

 	#if defined (CONFIG_DDR_ECC)
 	  /* Enable ECC checking */
 	  ddr->sdram_cfg = (CFG_DDR_CONTROL | 0x20000000);
 	#else
 	  ddr->sdram_cfg = CFG_DDR_CONTROL;
 	#endif

 	return CFG_SDRAM_SIZE * 1024 * 1024;
 }
 #endif

 #if defined(CONFIG_PCI) || defined(CONFIG_PCI1)
 /* For some reason the Tundra PCI bridge shows up on itself as a
  * different device.  Work around that by refusing to configure it.
  */
 void dummy_func(struct pci_controller* hose, pci_dev_t dev, struct pci_config_table *tab) { }

 static struct pci_config_table pci_sbc8548_config_table[] = {
 	{0x10e3, 0x0513, PCI_ANY_ID, 1, 3, PCI_ANY_ID, dummy_func, {0,0,0}},
 	{0x1106, 0x0686, PCI_ANY_ID, 1, VIA_ID, 0, mpc85xx_config_via, {0,0,0}},
 	{0x1106, 0x0571, PCI_ANY_ID, 1, VIA_ID, 1,
 		mpc85xx_config_via_usbide, {0,0,0}},
 	{0x1105, 0x3038, PCI_ANY_ID, 1, VIA_ID, 2,
 		mpc85xx_config_via_usb, {0,0,0}},
 	{0x1106, 0x3038, PCI_ANY_ID, 1, VIA_ID, 3,
 		mpc85xx_config_via_usb2, {0,0,0}},
 	{0x1106, 0x3058, PCI_ANY_ID, 1, VIA_ID, 5,
 		mpc85xx_config_via_power, {0,0,0}},
 	{0x1106, 0x3068, PCI_ANY_ID, 1, VIA_ID, 6,
 		mpc85xx_config_via_ac97, {0,0,0}},
 	{},
 };

 static struct pci_controller pci1_hose = {
 	config_table: pci_sbc8548_config_table};
 #endif	/* CONFIG_PCI */

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

 #ifdef CONFIG_PCIE1
 static struct pci_controller pcie1_hose;
 #endif	/* CONFIG_PCIE1 */

 int first_free_busno=0;

 void
 pci_init_board(void)
 {
 	volatile ccsr_gur_t *gur = (void *)(CFG_MPC85xx_GUTS_ADDR);

 #ifdef CONFIG_PCI1
 {
 	volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CFG_PCI1_ADDR;
 	extern void fsl_pci_init(struct pci_controller *hose);
 	struct pci_controller *hose = &pci1_hose;
 	struct pci_config_table *table;

 	uint pci_32 = gur->pordevsr & MPC85xx_PORDEVSR_PCI1_PCI32;	/* PORDEVSR[15] */
 	uint pci_arb = gur->pordevsr & MPC85xx_PORDEVSR_PCI1_ARB;	/* PORDEVSR[14] */
 	uint pci_clk_sel = gur->porpllsr & MPC85xx_PORDEVSR_PCI1_SPD;	/* PORPLLSR[16] */

 	uint pci_agent = (host_agent == 3) || (host_agent == 4 ) || (host_agent == 6);

 	uint pci_speed = get_clock_freq ();	/* PCI PSPEED in [4:5] */

 	if (!(gur->devdisr & MPC85xx_DEVDISR_PCI1)) {
 		printf ("    PCI: %d bit, %s MHz, %s, %s, %s\n",
 			(pci_32) ? 32 : 64,
 			(pci_speed == 33333000) ? "33" :
 			(pci_speed == 66666000) ? "66" : "unknown",
 			pci_clk_sel ? "sync" : "async",
 			pci_agent ? "agent" : "host",
 			pci_arb ? "arbiter" : "external-arbiter"
 			);


 		/* inbound */
 		pci_set_region(hose->regions + 0,
 			       CFG_PCI_MEMORY_BUS,
 			       CFG_PCI_MEMORY_PHYS,
 			       CFG_PCI_MEMORY_SIZE,
 			       PCI_REGION_MEM | PCI_REGION_MEMORY);


 		/* outbound memory */
 		pci_set_region(hose->regions + 1,
 			       CFG_PCI1_MEM_BASE,
 			       CFG_PCI1_MEM_PHYS,
 			       CFG_PCI1_MEM_SIZE,
 			       PCI_REGION_MEM);

 		/* outbound io */
 		pci_set_region(hose->regions + 2,
 			       CFG_PCI1_IO_BASE,
 			       CFG_PCI1_IO_PHYS,
 			       CFG_PCI1_IO_SIZE,
 			       PCI_REGION_IO);
 		hose->region_count = 3;

 		/* relocate config table pointers */
 		hose->config_table = \
 			(struct pci_config_table *)((uint)hose->config_table + gd->reloc_off);
 		for (table = hose->config_table; table && table->vendor; table++)
 			table->config_device += gd->reloc_off;

 		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 on bus %02x - %02x\n",hose->first_busno,hose->last_busno);
 #ifdef CONFIG_PCIX_CHECK
 		if (!(gur->pordevsr & PORDEVSR_PCI)) {
 			/* PCI-X init */
 			if (CONFIG_SYS_CLK_FREQ < 66000000)
 				printf("PCI-X will only work at 66 MHz\n");

 			reg16 = PCI_X_CMD_MAX_SPLIT | PCI_X_CMD_MAX_READ
 				| PCI_X_CMD_ERO | PCI_X_CMD_DPERR_E;
 			pci_hose_write_config_word(hose, bus, PCIX_COMMAND, reg16);
 		}
 #endif
 	} else {
 		printf ("    PCI: disabled\n");
 	}
 }
 #else
 	gur->devdisr |= MPC85xx_DEVDISR_PCI1; /* disable */
 #endif

 #ifdef CONFIG_PCI2
 {
 	uint pci2_clk_sel = gur->porpllsr & 0x4000;	/* PORPLLSR[17] */
 	uint pci_dual = get_pci_dual ();	/* PCI DUAL in CM_PCI[3] */
 	if (pci_dual) {
 		printf ("    PCI2: 32 bit, 66 MHz, %s\n",
 			pci2_clk_sel ? "sync" : "async");
 	} else {
 		printf ("    PCI2: disabled\n");
 	}
 }
 #else
 	gur->devdisr |= MPC85xx_DEVDISR_PCI2; /* disable */
 #endif /* CONFIG_PCI2 */

 #ifdef CONFIG_PCIE1
 {
 	volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CFG_PCIE1_ADDR;
 	extern void fsl_pci_init(struct pci_controller *hose);
 	struct pci_controller *hose = &pcie1_hose;
 	int pcie_ep =  (host_agent == 0) || (host_agent == 2 ) || (host_agent == 3);

 	int pcie_configured  = io_sel >= 1;

 	if (pcie_configured && !(gur->devdisr & MPC85xx_DEVDISR_PCIE)){
 		printf ("\n    PCIE connected to slot as %s (base address %x)",
 			pcie_ep ? "End Point" : "Root Complex",
 			(uint)pci);

 		if (pci->pme_msg_det) {
 			pci->pme_msg_det = 0xffffffff;
 			debug (" with errors.  Clearing.  Now 0x%08x",pci->pme_msg_det);
 		}
 		printf ("\n");

 		/* inbound */
 		pci_set_region(hose->regions + 0,
 			       CFG_PCI_MEMORY_BUS,
 			       CFG_PCI_MEMORY_PHYS,
 			       CFG_PCI_MEMORY_SIZE,
 			       PCI_REGION_MEM | PCI_REGION_MEMORY);

 		/* outbound memory */
 		pci_set_region(hose->regions + 1,
 			       CFG_PCIE1_MEM_BASE,
 			       CFG_PCIE1_MEM_PHYS,
 			       CFG_PCIE1_MEM_SIZE,
 			       PCI_REGION_MEM);

 		/* outbound io */
 		pci_set_region(hose->regions + 2,
 			       CFG_PCIE1_IO_BASE,
 			       CFG_PCIE1_IO_PHYS,
 			       CFG_PCIE1_IO_SIZE,
 			       PCI_REGION_IO);

 		hose->region_count = 3;

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

 		fsl_pci_init(hose);
 		printf ("PCIE on bus %d - %d\n",hose->first_busno,hose->last_busno);

 		first_free_busno=hose->last_busno+1;

 	} else {
 		printf ("    PCIE: disabled\n");
 	}
  }
 #else
 	gur->devdisr |= MPC85xx_DEVDISR_PCIE; /* disable */
 #endif

 }

 int last_stage_init(void)
 {
 	return 0;
 }

 #if defined(CONFIG_OF_BOARD_SETUP)
 void
 ft_pci_setup(void *blob, bd_t *bd)
 {
 	int node, tmp[2];
 	const char *path;

 	node = fdt_path_offset(blob, "/aliases");
 	tmp[0] = 0;
 	if (node >= 0) {
 #ifdef CONFIG_PCI1
 		path = fdt_getprop(blob, node, "pci0", NULL);
 		if (path) {
 			tmp[1] = pci1_hose.last_busno - pci1_hose.first_busno;
 			do_fixup_by_path(blob, path, "bus-range", &tmp, 8, 1);
 		}
 #endif
 #ifdef CONFIG_PCIE1
 		path = fdt_getprop(blob, node, "pci1", NULL);
 		if (path) {
 			tmp[1] = pcie1_hose.last_busno - pcie1_hose.first_busno;
 			do_fixup_by_path(blob, path, "bus-range", &tmp, 8, 1);
 		}
 #endif
 	}
 }
 #endif

 #if defined(CONFIG_OF_BOARD_SETUP)
 void
 ft_board_setup(void *blob, bd_t *bd)
 {
 	ft_cpu_setup(blob, bd);
 #ifdef CONFIG_PCI
 	ft_pci_setup(blob, bd);
 #endif
 }
 #endif
	/*
	* Copyright 2007 Wind River Systemes, Inc. <www.windriver.com>
	* Copyright 2007 Embedded Specialties, Inc.
	*
	* Copyright 2004, 2007 Freescale Semiconductor.
	*
	* (C) Copyright 2002 Scott McNutt <smcnutt@artesyncp.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., 59 Temple Place, Suite 330, Boston,
	* MA 02111-1307 USA
	*/

	#include <common.h>
	#include <pci.h>
	#include <asm/processor.h>
	#include <asm/immap_85xx.h>
	#include <asm/immap_fsl_pci.h>
	#include <spd.h>
	#include <miiphy.h>
	#include <libfdt.h>
	#include <fdt_support.h>

	#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
	extern void ddr_enable_ecc(unsigned int dram_size);
	#endif

	DECLARE_GLOBAL_DATA_PTR;

	extern long int spd_sdram(void);

	void local_bus_init(void);
	void sdram_init(void);
	long int fixed_sdram (void);

	int board_early_init_f (void)
	{
	return 0;
	}

	int checkboard (void)
	{
	volatile ccsr_gur_t gur = (void )(CFG_MPC85xx_GUTS_ADDR);
	volatile ccsr_local_ecm_t ecm = (void )(CFG_MPC85xx_ECM_ADDR);

	printf ("Board: Wind River SBC8548 Rev. 0x%01x\n",
	(volatile)((u_char )CFG_BD_REV) >> 4);

	/*
	* Initialize local bus.
	*/
	local_bus_init ();

	/*
	* Fix CPU2 errata: A core hang possible while executing a
	* msync instruction and a snoopable transaction from an I/O
	* master tagged to make quick forward progress is present.
	*/
	ecm->eebpcr \|= (1 << 16);

	/*
	* Hack TSEC 3 and 4 IO voltages.
	*/
	gur->tsec34ioovcr = 0xe7e0; /* 1110 0111 1110 0xxx */

	ecm->eedr = 0xffffffff; /* clear ecm errors */
	ecm->eeer = 0xffffffff; /* enable ecm errors */
	return 0;
	}

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

	puts("Initializing\n");

	#if defined(CONFIG_DDR_DLL)
	{
	/*
	* Work around to stabilize DDR DLL MSYNC_IN.
	* Errata DDR9 seems to have been fixed.
	* This is now the workaround for Errata DDR11:
	* Override DLL = 1, Course Adj = 1, Tap Select = 0
	*/

	volatile ccsr_gur_t gur = (void )(CFG_MPC85xx_GUTS_ADDR);

	gur->ddrdllcr = 0x81000000;
	asm("sync;isync;msync");
	udelay(200);
	}
	#endif

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

	#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
	/*
	* Initialize and enable DDR ECC.
	*/
	ddr_enable_ecc(dram_size);
	#endif
	/*
	* SDRAM Initialization
	*/
	sdram_init();

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

	/*
	* Initialize Local Bus
	*/
	void
	local_bus_init(void)
	{
	volatile ccsr_gur_t gur = (void )(CFG_MPC85xx_GUTS_ADDR);
	volatile ccsr_lbc_t lbc = (void )(CFG_MPC85xx_LBC_ADDR);

	uint clkdiv;
	uint lbc_hz;
	sys_info_t sysinfo;

	get_sys_info(&sysinfo);
	clkdiv = (lbc->lcrr & 0x0f) * 2;
	lbc_hz = sysinfo.freqSystemBus / 1000000 / clkdiv;

	gur->lbiuiplldcr1 = 0x00078080;
	if (clkdiv == 16) {
	gur->lbiuiplldcr0 = 0x7c0f1bf0;
	} else if (clkdiv == 8) {
	gur->lbiuiplldcr0 = 0x6c0f1bf0;
	} else if (clkdiv == 4) {
	gur->lbiuiplldcr0 = 0x5c0f1bf0;
	}

	lbc->lcrr \|= 0x00030000;

	asm("sync;isync;msync");

	lbc->ltesr = 0xffffffff; /* Clear LBC error interrupts */
	lbc->lteir = 0xffffffff; /* Enable LBC error interrupts */
	}

	/*
	* Initialize SDRAM memory on the Local Bus.
	*/
	void
	sdram_init(void)
	{
	#if defined(CFG_OR3_PRELIM) && defined(CFG_BR3_PRELIM)

	uint idx;
	volatile ccsr_lbc_t lbc = (void )(CFG_MPC85xx_LBC_ADDR);
	uint sdram_addr = (uint )CFG_LBC_SDRAM_BASE;
	uint lsdmr_common;

	puts(" SDRAM: ");

	print_size (CFG_LBC_SDRAM_SIZE * 1024 * 1024, "\n");

	/*
	* Setup SDRAM Base and Option Registers
	*/
	lbc->or3 = CFG_OR3_PRELIM;
	asm("msync");

	lbc->br3 = CFG_BR3_PRELIM;
	asm("msync");

	lbc->lbcr = CFG_LBC_LBCR;
	asm("msync");


	lbc->lsrt = CFG_LBC_LSRT;
	lbc->mrtpr = CFG_LBC_MRTPR;
	asm("msync");

	/*
	* MPC8548 uses "new" 15-16 style addressing.
	*/
	lsdmr_common = CFG_LBC_LSDMR_COMMON;
	lsdmr_common \|= CFG_LBC_LSDMR_BSMA1516;

	/*
	* Issue PRECHARGE ALL command.
	*/
	lbc->lsdmr = lsdmr_common \| CFG_LBC_LSDMR_OP_PCHALL;
	asm("sync;msync");
	*sdram_addr = 0xff;
	ppcDcbf((unsigned long) sdram_addr);
	udelay(100);

	/*
	* Issue 8 AUTO REFRESH commands.
	*/
	for (idx = 0; idx < 8; idx++) {
	lbc->lsdmr = lsdmr_common \| CFG_LBC_LSDMR_OP_ARFRSH;
	asm("sync;msync");
	*sdram_addr = 0xff;
	ppcDcbf((unsigned long) sdram_addr);
	udelay(100);
	}

	/*
	* Issue 8 MODE-set command.
	*/
	lbc->lsdmr = lsdmr_common \| CFG_LBC_LSDMR_OP_MRW;
	asm("sync;msync");
	*sdram_addr = 0xff;
	ppcDcbf((unsigned long) sdram_addr);
	udelay(100);

	/*
	* Issue NORMAL OP command.
	*/
	lbc->lsdmr = lsdmr_common \| CFG_LBC_LSDMR_OP_NORMAL;
	asm("sync;msync");
	*sdram_addr = 0xff;
	ppcDcbf((unsigned long) sdram_addr);
	udelay(200); /* Overkill. Must wait > 200 bus cycles */

	#endif /* enable SDRAM init */
	}

	#if defined(CFG_DRAM_TEST)
	int
	testdram(void)
	{
	uint pstart = (uint ) CFG_MEMTEST_START;
	uint pend = (uint ) CFG_MEMTEST_END;
	uint *p;

	printf("Testing DRAM from 0x%08x to 0x%08x\n",
	CFG_MEMTEST_START,
	CFG_MEMTEST_END);

	printf("DRAM test phase 1:\n");
	for (p = pstart; p < pend; p++)
	*p = 0xaaaaaaaa;

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

	printf("DRAM test phase 2:\n");
	for (p = pstart; p < pend; p++)
	*p = 0x55555555;

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

	printf("DRAM test passed.\n");
	return 0;
	}
	#endif

	#if !defined(CONFIG_SPD_EEPROM)
	/*************************************************************************
	* fixed_sdram init -- doesn't use serial presence detect.
	* assumes 256MB DDR2 SDRAM SODIMM, without ECC, running at DDR400 speed.
	************************************************************************/
	long int fixed_sdram (void)
	{
	#define CFG_DDR_CONTROL 0xc300c000

	volatile ccsr_ddr_t ddr = (void )(CFG_MPC85xx_DDR_ADDR);

	ddr->cs0_bnds = 0x0000007f;
	ddr->cs1_bnds = 0x008000ff;
	ddr->cs2_bnds = 0x00000000;
	ddr->cs3_bnds = 0x00000000;
	ddr->cs0_config = 0x80010101;
	ddr->cs1_config = 0x80010101;
	ddr->cs2_config = 0x00000000;
	ddr->cs3_config = 0x00000000;
	ddr->ext_refrec = 0x00000000;
	ddr->timing_cfg_0 = 0x00220802;
	ddr->timing_cfg_1 = 0x38377322;
	ddr->timing_cfg_2 = 0x0fa044C7;
	ddr->sdram_cfg = 0x4300C000;
	ddr->sdram_cfg_2 = 0x24401000;
	ddr->sdram_mode = 0x23C00542;
	ddr->sdram_mode_2 = 0x00000000;
	ddr->sdram_interval = 0x05080100;
	ddr->sdram_md_cntl = 0x00000000;
	ddr->sdram_data_init = 0x00000000;
	ddr->sdram_clk_cntl = 0x03800000;
	asm("sync;isync;msync");
	udelay(500);

	#if defined (CONFIG_DDR_ECC)
	/* Enable ECC checking */
	ddr->sdram_cfg = (CFG_DDR_CONTROL \| 0x20000000);
	#else
	ddr->sdram_cfg = CFG_DDR_CONTROL;
	#endif

	return CFG_SDRAM_SIZE * 1024 * 1024;
	}
	#endif

	#if defined(CONFIG_PCI) \|\| defined(CONFIG_PCI1)
	/* For some reason the Tundra PCI bridge shows up on itself as a
	* different device. Work around that by refusing to configure it.
	*/
	void dummy_func(struct pci_controller* hose, pci_dev_t dev, struct pci_config_table *tab) { }

	static struct pci_config_table pci_sbc8548_config_table[] = {
	{0x10e3, 0x0513, PCI_ANY_ID, 1, 3, PCI_ANY_ID, dummy_func, {0,0,0}},
	{0x1106, 0x0686, PCI_ANY_ID, 1, VIA_ID, 0, mpc85xx_config_via, {0,0,0}},
	{0x1106, 0x0571, PCI_ANY_ID, 1, VIA_ID, 1,
	mpc85xx_config_via_usbide, {0,0,0}},
	{0x1105, 0x3038, PCI_ANY_ID, 1, VIA_ID, 2,
	mpc85xx_config_via_usb, {0,0,0}},
	{0x1106, 0x3038, PCI_ANY_ID, 1, VIA_ID, 3,
	mpc85xx_config_via_usb2, {0,0,0}},
	{0x1106, 0x3058, PCI_ANY_ID, 1, VIA_ID, 5,
	mpc85xx_config_via_power, {0,0,0}},
	{0x1106, 0x3068, PCI_ANY_ID, 1, VIA_ID, 6,
	mpc85xx_config_via_ac97, {0,0,0}},
	{},
	};

	static struct pci_controller pci1_hose = {
	config_table: pci_sbc8548_config_table};
	#endif /* CONFIG_PCI */

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

	#ifdef CONFIG_PCIE1
	static struct pci_controller pcie1_hose;
	#endif /* CONFIG_PCIE1 */

	int first_free_busno=0;

	void
	pci_init_board(void)
	{
	volatile ccsr_gur_t gur = (void )(CFG_MPC85xx_GUTS_ADDR);

	#ifdef CONFIG_PCI1
	{
	volatile ccsr_fsl_pci_t pci = (ccsr_fsl_pci_t ) CFG_PCI1_ADDR;
	extern void fsl_pci_init(struct pci_controller *hose);
	struct pci_controller *hose = &pci1_hose;
	struct pci_config_table *table;

	uint pci_32 = gur->pordevsr & MPC85xx_PORDEVSR_PCI1_PCI32; /* PORDEVSR[15] */
	uint pci_arb = gur->pordevsr & MPC85xx_PORDEVSR_PCI1_ARB; /* PORDEVSR[14] */
	uint pci_clk_sel = gur->porpllsr & MPC85xx_PORDEVSR_PCI1_SPD; /* PORPLLSR[16] */

	uint pci_agent = (host_agent == 3) \|\| (host_agent == 4 ) \|\| (host_agent == 6);

	uint pci_speed = get_clock_freq (); /* PCI PSPEED in [4:5] */

	if (!(gur->devdisr & MPC85xx_DEVDISR_PCI1)) {
	printf (" PCI: %d bit, %s MHz, %s, %s, %s\n",
	(pci_32) ? 32 : 64,
	(pci_speed == 33333000) ? "33" :
	(pci_speed == 66666000) ? "66" : "unknown",
	pci_clk_sel ? "sync" : "async",
	pci_agent ? "agent" : "host",
	pci_arb ? "arbiter" : "external-arbiter"
	);


	/* inbound */
	pci_set_region(hose->regions + 0,
	CFG_PCI_MEMORY_BUS,
	CFG_PCI_MEMORY_PHYS,
	CFG_PCI_MEMORY_SIZE,
	PCI_REGION_MEM \| PCI_REGION_MEMORY);


	/* outbound memory */
	pci_set_region(hose->regions + 1,
	CFG_PCI1_MEM_BASE,
	CFG_PCI1_MEM_PHYS,
	CFG_PCI1_MEM_SIZE,
	PCI_REGION_MEM);

	/* outbound io */
	pci_set_region(hose->regions + 2,
	CFG_PCI1_IO_BASE,
	CFG_PCI1_IO_PHYS,
	CFG_PCI1_IO_SIZE,
	PCI_REGION_IO);
	hose->region_count = 3;

	/* relocate config table pointers */
	hose->config_table = \
	(struct pci_config_table *)((uint)hose->config_table + gd->reloc_off);
	for (table = hose->config_table; table && table->vendor; table++)
	table->config_device += gd->reloc_off;

	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 on bus %02x - %02x\n",hose->first_busno,hose->last_busno);
	#ifdef CONFIG_PCIX_CHECK
	if (!(gur->pordevsr & PORDEVSR_PCI)) {
	/* PCI-X init */
	if (CONFIG_SYS_CLK_FREQ < 66000000)
	printf("PCI-X will only work at 66 MHz\n");

	reg16 = PCI_X_CMD_MAX_SPLIT \| PCI_X_CMD_MAX_READ
	\| PCI_X_CMD_ERO \| PCI_X_CMD_DPERR_E;
	pci_hose_write_config_word(hose, bus, PCIX_COMMAND, reg16);
	}
	#endif
	} else {
	printf (" PCI: disabled\n");
	}
	}
	#else
	gur->devdisr \|= MPC85xx_DEVDISR_PCI1; /* disable */
	#endif

	#ifdef CONFIG_PCI2
	{
	uint pci2_clk_sel = gur->porpllsr & 0x4000; /* PORPLLSR[17] */
	uint pci_dual = get_pci_dual (); /* PCI DUAL in CM_PCI[3] */
	if (pci_dual) {
	printf (" PCI2: 32 bit, 66 MHz, %s\n",
	pci2_clk_sel ? "sync" : "async");
	} else {
	printf (" PCI2: disabled\n");
	}
	}
	#else
	gur->devdisr \|= MPC85xx_DEVDISR_PCI2; /* disable */
	#endif /* CONFIG_PCI2 */

	#ifdef CONFIG_PCIE1
	{
	volatile ccsr_fsl_pci_t pci = (ccsr_fsl_pci_t ) CFG_PCIE1_ADDR;
	extern void fsl_pci_init(struct pci_controller *hose);
	struct pci_controller *hose = &pcie1_hose;
	int pcie_ep = (host_agent == 0) \|\| (host_agent == 2 ) \|\| (host_agent == 3);

	int pcie_configured = io_sel >= 1;

	if (pcie_configured && !(gur->devdisr & MPC85xx_DEVDISR_PCIE)){
	printf ("\n PCIE connected to slot as %s (base address %x)",
	pcie_ep ? "End Point" : "Root Complex",
	(uint)pci);

	if (pci->pme_msg_det) {
	pci->pme_msg_det = 0xffffffff;
	debug (" with errors. Clearing. Now 0x%08x",pci->pme_msg_det);
	}
	printf ("\n");

	/* inbound */
	pci_set_region(hose->regions + 0,
	CFG_PCI_MEMORY_BUS,
	CFG_PCI_MEMORY_PHYS,
	CFG_PCI_MEMORY_SIZE,
	PCI_REGION_MEM \| PCI_REGION_MEMORY);

	/* outbound memory */
	pci_set_region(hose->regions + 1,
	CFG_PCIE1_MEM_BASE,
	CFG_PCIE1_MEM_PHYS,
	CFG_PCIE1_MEM_SIZE,
	PCI_REGION_MEM);

	/* outbound io */
	pci_set_region(hose->regions + 2,
	CFG_PCIE1_IO_BASE,
	CFG_PCIE1_IO_PHYS,
	CFG_PCIE1_IO_SIZE,
	PCI_REGION_IO);

	hose->region_count = 3;

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

	fsl_pci_init(hose);
	printf ("PCIE on bus %d - %d\n",hose->first_busno,hose->last_busno);

	first_free_busno=hose->last_busno+1;

	} else {
	printf (" PCIE: disabled\n");
	}
	}
	#else
	gur->devdisr \|= MPC85xx_DEVDISR_PCIE; /* disable */
	#endif

	}

	int last_stage_init(void)
	{
	return 0;
	}

	#if defined(CONFIG_OF_BOARD_SETUP)
	void
	ft_pci_setup(void blob, bd_t bd)
	{
	int node, tmp[2];
	const char *path;

	node = fdt_path_offset(blob, "/aliases");
	tmp[0] = 0;
	if (node >= 0) {
	#ifdef CONFIG_PCI1
	path = fdt_getprop(blob, node, "pci0", NULL);
	if (path) {
	tmp[1] = pci1_hose.last_busno - pci1_hose.first_busno;
	do_fixup_by_path(blob, path, "bus-range", &tmp, 8, 1);
	}
	#endif
	#ifdef CONFIG_PCIE1
	path = fdt_getprop(blob, node, "pci1", NULL);
	if (path) {
	tmp[1] = pcie1_hose.last_busno - pcie1_hose.first_busno;
	do_fixup_by_path(blob, path, "bus-range", &tmp, 8, 1);
	}
	#endif
	}
	}
	#endif

	#if defined(CONFIG_OF_BOARD_SETUP)
	void
	ft_board_setup(void blob, bd_t bd)
	{
	ft_cpu_setup(blob, bd);
	#ifdef CONFIG_PCI
	ft_pci_setup(blob, bd);
	#endif
	}
	#endif