board/mpc8360emds/pci.c - github/trini/u-boot - Gitiles

 /*
  * Copyright (C) 2006 Freescale Semiconductor, Inc.
  *
  * 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.
  */

 /*
  * PCI Configuration space access support for MPC83xx PCI Bridge
  */
 #include <asm/mmu.h>
 #include <asm/io.h>
 #include <common.h>
 #include <pci.h>
 #include <i2c.h>
 #if defined(CONFIG_OF_FLAT_TREE)
 #include <ft_build.h>
 #endif

 #include <asm/fsl_i2c.h>

 DECLARE_GLOBAL_DATA_PTR;

 #if defined(CONFIG_PCI)
 #define PCI_FUNCTION_CONFIG   0x44
 #define PCI_FUNCTION_CFG_LOCK 0x20

 /*
  * Initialize PCI Devices, report devices found
  */
 #ifndef CONFIG_PCI_PNP
 static struct pci_config_table pci_mpc83xxemds_config_table[] = {
 	{
 	 PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
 	 pci_cfgfunc_config_device,
 	 {PCI_ENET0_IOADDR,
 	  PCI_ENET0_MEMADDR,
 	  PCI_COMMON_MEMORY | PCI_COMMAND_MASTER}
 	 },
 	{}
 }
 #endif
 static struct pci_controller hose[] = {
 	{
 #ifndef CONFIG_PCI_PNP
 	      config_table:pci_mpc83xxemds_config_table,
 #endif
 	 },
 };

 /**********************************************************************
  * pci_init_board()
  *********************************************************************/
 void pci_init_board(void)
 #ifdef CONFIG_PCISLAVE
 {
 	u16 reg16;
 	volatile immap_t *immr;
 	volatile law83xx_t *pci_law;
 	volatile pot83xx_t *pci_pot;
 	volatile pcictrl83xx_t *pci_ctrl;
 	volatile pciconf83xx_t *pci_conf;

 	immr = (immap_t *) CFG_IMMR;
 	pci_law = immr->sysconf.pcilaw;
 	pci_pot = immr->ios.pot;
 	pci_ctrl = immr->pci_ctrl;
 	pci_conf = immr->pci_conf;
 	/*
 	 * Configure PCI Inbound Translation Windows
 	 */
 	pci_ctrl[0].pitar0 = 0x0;
 	pci_ctrl[0].pibar0 = 0x0;
 	pci_ctrl[0].piwar0 = PIWAR_EN | PIWAR_RTT_SNOOP |
 	    PIWAR_WTT_SNOOP | PIWAR_IWS_4K;

 	pci_ctrl[0].pitar1 = 0x0;
 	pci_ctrl[0].pibar1 = 0x0;
 	pci_ctrl[0].piebar1 = 0x0;
 	pci_ctrl[0].piwar1 &= ~PIWAR_EN;

 	pci_ctrl[0].pitar2 = 0x0;
 	pci_ctrl[0].pibar2 = 0x0;
 	pci_ctrl[0].piebar2 = 0x0;
 	pci_ctrl[0].piwar2 &= ~PIWAR_EN;

 	hose[0].first_busno = 0;
 	hose[0].last_busno = 0xff;
 	pci_setup_indirect(&hose[0],
 			   (CFG_IMMR + 0x8300), (CFG_IMMR + 0x8304));
 	reg16 = 0xff;

 	pci_hose_read_config_word(&hose[0], PCI_BDF(0, 0, 0),
 				  PCI_COMMAND, &reg16);
 	reg16 |= PCI_COMMAND_SERR | PCI_COMMAND_MEMORY;
 	pci_hose_write_config_word(&hose[0], PCI_BDF(0, 0, 0),
 				   PCI_COMMAND, reg16);

 	/*
 	 * Clear non-reserved bits in status register.
 	 */
 	pci_hose_write_config_word(&hose[0], PCI_BDF(0, 0, 0),
 				   PCI_STATUS, 0xffff);
 	pci_hose_write_config_byte(&hose[0], PCI_BDF(0, 0, 0),
 				   PCI_LATENCY_TIMER, 0x80);

 	/*
 	 * Unlock configuration lock in PCI function configuration register.
 	 */
 	pci_hose_read_config_word(&hose[0], PCI_BDF(0, 0, 0),
 				  PCI_FUNCTION_CONFIG, &reg16);
 	reg16 &= ~(PCI_FUNCTION_CFG_LOCK);
 	pci_hose_write_config_word(&hose[0], PCI_BDF(0, 0, 0),
 				   PCI_FUNCTION_CONFIG, reg16);

 	printf("Enabled PCI 32bit Agent Mode\n");
 }
 #else
 {
 	volatile immap_t *immr;
 	volatile clk83xx_t *clk;
 	volatile law83xx_t *pci_law;
 	volatile pot83xx_t *pci_pot;
 	volatile pcictrl83xx_t *pci_ctrl;
 	volatile pciconf83xx_t *pci_conf;

 	u8 val8, orig_i2c_bus;
 	u16 reg16;
 	u32 val32;
 	u32 dev;

 	immr = (immap_t *) CFG_IMMR;
 	clk = (clk83xx_t *) & immr->clk;
 	pci_law = immr->sysconf.pcilaw;
 	pci_pot = immr->ios.pot;
 	pci_ctrl = immr->pci_ctrl;
 	pci_conf = immr->pci_conf;
 	/*
 	 * Configure PCI controller and PCI_CLK_OUTPUT both in 66M mode
 	 */
 	val32 = clk->occr;
 	udelay(2000);
 #if defined(PCI_66M)
 	clk->occr = OCCR_PCICOE0 | OCCR_PCICOE1 | OCCR_PCICOE2;
 	printf("PCI clock is 66MHz\n");
 #elif defined(PCI_33M)
 	clk->occr = OCCR_PCICOE0 | OCCR_PCICOE1 | OCCR_PCICOE2 |
 	    OCCR_PCICD0 | OCCR_PCICD1 | OCCR_PCICD2 | OCCR_PCICR;
 	printf("PCI clock is 33MHz\n");
 #else
 	clk->occr = OCCR_PCICOE0 | OCCR_PCICOE1 | OCCR_PCICOE2;
 	printf("PCI clock is 66MHz\n");
 #endif
 	udelay(2000);

 	/*
 	 * Configure PCI Local Access Windows
 	 */
 	pci_law[0].bar = CFG_PCI_MEM_PHYS & LAWBAR_BAR;
 	pci_law[0].ar = LAWAR_EN | LAWAR_SIZE_512M;

 	pci_law[1].bar = CFG_PCI_IO_PHYS & LAWBAR_BAR;
 	pci_law[1].ar = LAWAR_EN | LAWAR_SIZE_1M;

 	/*
 	 * Configure PCI Outbound Translation Windows
 	 */

 	/* PCI mem space - prefetch */
 	pci_pot[0].potar = (CFG_PCI_MEM_BASE >> 12) & POTAR_TA_MASK;
 	pci_pot[0].pobar = (CFG_PCI_MEM_PHYS >> 12) & POBAR_BA_MASK;
 	pci_pot[0].pocmr =
 	    POCMR_EN | POCMR_SE | (POCMR_CM_256M & POCMR_CM_MASK);

 	/* PCI mmio - non-prefetch mem space */
 	pci_pot[1].potar = (CFG_PCI_MMIO_BASE >> 12) & POTAR_TA_MASK;
 	pci_pot[1].pobar = (CFG_PCI_MMIO_PHYS >> 12) & POBAR_BA_MASK;
 	pci_pot[1].pocmr = POCMR_EN | (POCMR_CM_256M & POCMR_CM_MASK);

 	/* PCI IO space */
 	pci_pot[2].potar = (CFG_PCI_IO_BASE >> 12) & POTAR_TA_MASK;
 	pci_pot[2].pobar = (CFG_PCI_IO_PHYS >> 12) & POBAR_BA_MASK;
 	pci_pot[2].pocmr = POCMR_EN | POCMR_IO | (POCMR_CM_1M & POCMR_CM_MASK);

 	/*
 	 * Configure PCI Inbound Translation Windows
 	 */
 	pci_ctrl[0].pitar1 = (CFG_PCI_SLV_MEM_LOCAL >> 12) & PITAR_TA_MASK;
 	pci_ctrl[0].pibar1 = (CFG_PCI_SLV_MEM_BUS >> 12) & PIBAR_MASK;
 	pci_ctrl[0].piebar1 = 0x0;
 	pci_ctrl[0].piwar1 =
 	    PIWAR_EN | PIWAR_PF | PIWAR_RTT_SNOOP | PIWAR_WTT_SNOOP |
 	    PIWAR_IWS_2G;

 	/*
 	 * Assign PIB PMC slot to desired PCI bus
 	 */

 	/* Switch temporarily to I2C bus #2 */
 	orig_i2c_bus = i2c_get_bus_num();
  	i2c_set_bus_num(1);

 	val8 = 0;
 	i2c_write(0x23, 0x6, 1, &val8, 1);
 	i2c_write(0x23, 0x7, 1, &val8, 1);
 	val8 = 0xff;
 	i2c_write(0x23, 0x2, 1, &val8, 1);
 	i2c_write(0x23, 0x3, 1, &val8, 1);

 	val8 = 0;
 	i2c_write(0x26, 0x6, 1, &val8, 1);
 	val8 = 0x34;
 	i2c_write(0x26, 0x7, 1, &val8, 1);

 	val8 = 0xf3;		/*PMC1, PMC2, PMC3 slot to PCI bus */
 	i2c_write(0x26, 0x2, 1, &val8, 1);
 	val8 = 0xff;
 	i2c_write(0x26, 0x3, 1, &val8, 1);

 	val8 = 0;
 	i2c_write(0x27, 0x6, 1, &val8, 1);
 	i2c_write(0x27, 0x7, 1, &val8, 1);
 	val8 = 0xff;
 	i2c_write(0x27, 0x2, 1, &val8, 1);
 	val8 = 0xef;
 	i2c_write(0x27, 0x3, 1, &val8, 1);
 	asm("eieio");

 	/* Reset to original I2C bus */
 	i2c_set_bus_num(orig_i2c_bus);

 	/*
 	 * Release PCI RST Output signal
 	 */
 	udelay(2000);
 	pci_ctrl[0].gcr = 1;
 	udelay(2000);

 	hose[0].first_busno = 0;
 	hose[0].last_busno = 0xff;

 	/* PCI memory prefetch space */
 	pci_set_region(hose[0].regions + 0,
 		       CFG_PCI_MEM_BASE,
 		       CFG_PCI_MEM_PHYS,
 		       CFG_PCI_MEM_SIZE, PCI_REGION_MEM | PCI_REGION_PREFETCH);

 	/* PCI memory space */
 	pci_set_region(hose[0].regions + 1,
 		       CFG_PCI_MMIO_BASE,
 		       CFG_PCI_MMIO_PHYS, CFG_PCI_MMIO_SIZE, PCI_REGION_MEM);

 	/* PCI IO space */
 	pci_set_region(hose[0].regions + 2,
 		       CFG_PCI_IO_BASE,
 		       CFG_PCI_IO_PHYS, CFG_PCI_IO_SIZE, PCI_REGION_IO);

 	/* System memory space */
 	pci_set_region(hose[0].regions + 3,
 		       CFG_PCI_SLV_MEM_LOCAL,
 		       CFG_PCI_SLV_MEM_BUS,
 		       CFG_PCI_SLV_MEM_SIZE,
 		       PCI_REGION_MEM | PCI_REGION_MEMORY);

 	hose[0].region_count = 4;

 	pci_setup_indirect(&hose[0],
 			   (CFG_IMMR + 0x8300), (CFG_IMMR + 0x8304));

 	pci_register_hose(hose);

 	/*
 	 * Write command register
 	 */
 	reg16 = 0xff;
 	dev = PCI_BDF(0, 0, 0);
 	pci_hose_read_config_word(&hose[0], dev, PCI_COMMAND, &reg16);
 	reg16 |= PCI_COMMAND_SERR | PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY;
 	pci_hose_write_config_word(&hose[0], dev, PCI_COMMAND, reg16);

 	/*
 	 * Clear non-reserved bits in status register.
 	 */
 	pci_hose_write_config_word(&hose[0], dev, PCI_STATUS, 0xffff);
 	pci_hose_write_config_byte(&hose[0], dev, PCI_LATENCY_TIMER, 0x80);
 	pci_hose_write_config_byte(&hose[0], dev, PCI_CACHE_LINE_SIZE, 0x08);

 	printf("PCI 32bit bus on PMC1 & PMC2 & PMC3\n");

 	/*
 	 * Hose scan.
 	 */
 	hose->last_busno = pci_hose_scan(hose);
 }
 #endif				/* CONFIG_PCISLAVE */

 #ifdef CONFIG_OF_FLAT_TREE
 void
 ft_pci_setup(void *blob, bd_t *bd)
 {
        	u32 *p;
        	int len;

        	p = (u32 *)ft_get_prop(blob, "/" OF_SOC "/pci@8500/bus-range", &len);
        	if (p != NULL) {
 		p[0] = hose[0].first_busno;
 		p[1] = hose[0].last_busno;
        	}
 }
 #endif				/* CONFIG_OF_FLAT_TREE */
 #endif				/* CONFIG_PCI */
	/*
	* Copyright (C) 2006 Freescale Semiconductor, Inc.
	*
	* 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.
	*/

	/*
	* PCI Configuration space access support for MPC83xx PCI Bridge
	*/
	#include <asm/mmu.h>
	#include <asm/io.h>
	#include <common.h>
	#include <pci.h>
	#include <i2c.h>
	#if defined(CONFIG_OF_FLAT_TREE)
	#include <ft_build.h>
	#endif

	#include <asm/fsl_i2c.h>

	DECLARE_GLOBAL_DATA_PTR;

	#if defined(CONFIG_PCI)
	#define PCI_FUNCTION_CONFIG 0x44
	#define PCI_FUNCTION_CFG_LOCK 0x20

	/*
	* Initialize PCI Devices, report devices found
	*/
	#ifndef CONFIG_PCI_PNP
	static struct pci_config_table pci_mpc83xxemds_config_table[] = {
	{
	PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
	pci_cfgfunc_config_device,
	{PCI_ENET0_IOADDR,
	PCI_ENET0_MEMADDR,
	PCI_COMMON_MEMORY \| PCI_COMMAND_MASTER}
	},
	{}
	}
	#endif
	static struct pci_controller hose[] = {
	{
	#ifndef CONFIG_PCI_PNP
	config_table:pci_mpc83xxemds_config_table,
	#endif
	},
	};

	/**********************************************************************
	* pci_init_board()
	*********************************************************************/
	void pci_init_board(void)
	#ifdef CONFIG_PCISLAVE
	{
	u16 reg16;
	volatile immap_t *immr;
	volatile law83xx_t *pci_law;
	volatile pot83xx_t *pci_pot;
	volatile pcictrl83xx_t *pci_ctrl;
	volatile pciconf83xx_t *pci_conf;

	immr = (immap_t *) CFG_IMMR;
	pci_law = immr->sysconf.pcilaw;
	pci_pot = immr->ios.pot;
	pci_ctrl = immr->pci_ctrl;
	pci_conf = immr->pci_conf;
	/*
	* Configure PCI Inbound Translation Windows
	*/
	pci_ctrl[0].pitar0 = 0x0;
	pci_ctrl[0].pibar0 = 0x0;
	pci_ctrl[0].piwar0 = PIWAR_EN \| PIWAR_RTT_SNOOP \|
	PIWAR_WTT_SNOOP \| PIWAR_IWS_4K;

	pci_ctrl[0].pitar1 = 0x0;
	pci_ctrl[0].pibar1 = 0x0;
	pci_ctrl[0].piebar1 = 0x0;
	pci_ctrl[0].piwar1 &= ~PIWAR_EN;

	pci_ctrl[0].pitar2 = 0x0;
	pci_ctrl[0].pibar2 = 0x0;
	pci_ctrl[0].piebar2 = 0x0;
	pci_ctrl[0].piwar2 &= ~PIWAR_EN;

	hose[0].first_busno = 0;
	hose[0].last_busno = 0xff;
	pci_setup_indirect(&hose[0],
	(CFG_IMMR + 0x8300), (CFG_IMMR + 0x8304));
	reg16 = 0xff;

	pci_hose_read_config_word(&hose[0], PCI_BDF(0, 0, 0),
	PCI_COMMAND, &reg16);
	reg16 \|= PCI_COMMAND_SERR \| PCI_COMMAND_MEMORY;
	pci_hose_write_config_word(&hose[0], PCI_BDF(0, 0, 0),
	PCI_COMMAND, reg16);

	/*
	* Clear non-reserved bits in status register.
	*/
	pci_hose_write_config_word(&hose[0], PCI_BDF(0, 0, 0),
	PCI_STATUS, 0xffff);
	pci_hose_write_config_byte(&hose[0], PCI_BDF(0, 0, 0),
	PCI_LATENCY_TIMER, 0x80);

	/*
	* Unlock configuration lock in PCI function configuration register.
	*/
	pci_hose_read_config_word(&hose[0], PCI_BDF(0, 0, 0),
	PCI_FUNCTION_CONFIG, &reg16);
	reg16 &= ~(PCI_FUNCTION_CFG_LOCK);
	pci_hose_write_config_word(&hose[0], PCI_BDF(0, 0, 0),
	PCI_FUNCTION_CONFIG, reg16);

	printf("Enabled PCI 32bit Agent Mode\n");
	}
	#else
	{
	volatile immap_t *immr;
	volatile clk83xx_t *clk;
	volatile law83xx_t *pci_law;
	volatile pot83xx_t *pci_pot;
	volatile pcictrl83xx_t *pci_ctrl;
	volatile pciconf83xx_t *pci_conf;

	u8 val8, orig_i2c_bus;
	u16 reg16;
	u32 val32;
	u32 dev;

	immr = (immap_t *) CFG_IMMR;
	clk = (clk83xx_t *) & immr->clk;
	pci_law = immr->sysconf.pcilaw;
	pci_pot = immr->ios.pot;
	pci_ctrl = immr->pci_ctrl;
	pci_conf = immr->pci_conf;
	/*
	* Configure PCI controller and PCI_CLK_OUTPUT both in 66M mode
	*/
	val32 = clk->occr;
	udelay(2000);
	#if defined(PCI_66M)
	clk->occr = OCCR_PCICOE0 \| OCCR_PCICOE1 \| OCCR_PCICOE2;
	printf("PCI clock is 66MHz\n");
	#elif defined(PCI_33M)
	clk->occr = OCCR_PCICOE0 \| OCCR_PCICOE1 \| OCCR_PCICOE2 \|
	OCCR_PCICD0 \| OCCR_PCICD1 \| OCCR_PCICD2 \| OCCR_PCICR;
	printf("PCI clock is 33MHz\n");
	#else
	clk->occr = OCCR_PCICOE0 \| OCCR_PCICOE1 \| OCCR_PCICOE2;
	printf("PCI clock is 66MHz\n");
	#endif
	udelay(2000);

	/*
	* Configure PCI Local Access Windows
	*/
	pci_law[0].bar = CFG_PCI_MEM_PHYS & LAWBAR_BAR;
	pci_law[0].ar = LAWAR_EN \| LAWAR_SIZE_512M;

	pci_law[1].bar = CFG_PCI_IO_PHYS & LAWBAR_BAR;
	pci_law[1].ar = LAWAR_EN \| LAWAR_SIZE_1M;

	/*
	* Configure PCI Outbound Translation Windows
	*/

	/* PCI mem space - prefetch */
	pci_pot[0].potar = (CFG_PCI_MEM_BASE >> 12) & POTAR_TA_MASK;
	pci_pot[0].pobar = (CFG_PCI_MEM_PHYS >> 12) & POBAR_BA_MASK;
	pci_pot[0].pocmr =
	POCMR_EN \| POCMR_SE \| (POCMR_CM_256M & POCMR_CM_MASK);

	/* PCI mmio - non-prefetch mem space */
	pci_pot[1].potar = (CFG_PCI_MMIO_BASE >> 12) & POTAR_TA_MASK;
	pci_pot[1].pobar = (CFG_PCI_MMIO_PHYS >> 12) & POBAR_BA_MASK;
	pci_pot[1].pocmr = POCMR_EN \| (POCMR_CM_256M & POCMR_CM_MASK);

	/* PCI IO space */
	pci_pot[2].potar = (CFG_PCI_IO_BASE >> 12) & POTAR_TA_MASK;
	pci_pot[2].pobar = (CFG_PCI_IO_PHYS >> 12) & POBAR_BA_MASK;
	pci_pot[2].pocmr = POCMR_EN \| POCMR_IO \| (POCMR_CM_1M & POCMR_CM_MASK);

	/*
	* Configure PCI Inbound Translation Windows
	*/
	pci_ctrl[0].pitar1 = (CFG_PCI_SLV_MEM_LOCAL >> 12) & PITAR_TA_MASK;
	pci_ctrl[0].pibar1 = (CFG_PCI_SLV_MEM_BUS >> 12) & PIBAR_MASK;
	pci_ctrl[0].piebar1 = 0x0;
	pci_ctrl[0].piwar1 =
	PIWAR_EN \| PIWAR_PF \| PIWAR_RTT_SNOOP \| PIWAR_WTT_SNOOP \|
	PIWAR_IWS_2G;

	/*
	* Assign PIB PMC slot to desired PCI bus
	*/

	/* Switch temporarily to I2C bus #2 */
	orig_i2c_bus = i2c_get_bus_num();
	i2c_set_bus_num(1);

	val8 = 0;
	i2c_write(0x23, 0x6, 1, &val8, 1);
	i2c_write(0x23, 0x7, 1, &val8, 1);
	val8 = 0xff;
	i2c_write(0x23, 0x2, 1, &val8, 1);
	i2c_write(0x23, 0x3, 1, &val8, 1);

	val8 = 0;
	i2c_write(0x26, 0x6, 1, &val8, 1);
	val8 = 0x34;
	i2c_write(0x26, 0x7, 1, &val8, 1);

	val8 = 0xf3; /PMC1, PMC2, PMC3 slot to PCI bus /
	i2c_write(0x26, 0x2, 1, &val8, 1);
	val8 = 0xff;
	i2c_write(0x26, 0x3, 1, &val8, 1);

	val8 = 0;
	i2c_write(0x27, 0x6, 1, &val8, 1);
	i2c_write(0x27, 0x7, 1, &val8, 1);
	val8 = 0xff;
	i2c_write(0x27, 0x2, 1, &val8, 1);
	val8 = 0xef;
	i2c_write(0x27, 0x3, 1, &val8, 1);
	asm("eieio");

	/* Reset to original I2C bus */
	i2c_set_bus_num(orig_i2c_bus);

	/*
	* Release PCI RST Output signal
	*/
	udelay(2000);
	pci_ctrl[0].gcr = 1;
	udelay(2000);

	hose[0].first_busno = 0;
	hose[0].last_busno = 0xff;

	/* PCI memory prefetch space */
	pci_set_region(hose[0].regions + 0,
	CFG_PCI_MEM_BASE,
	CFG_PCI_MEM_PHYS,
	CFG_PCI_MEM_SIZE, PCI_REGION_MEM \| PCI_REGION_PREFETCH);

	/* PCI memory space */
	pci_set_region(hose[0].regions + 1,
	CFG_PCI_MMIO_BASE,
	CFG_PCI_MMIO_PHYS, CFG_PCI_MMIO_SIZE, PCI_REGION_MEM);

	/* PCI IO space */
	pci_set_region(hose[0].regions + 2,
	CFG_PCI_IO_BASE,
	CFG_PCI_IO_PHYS, CFG_PCI_IO_SIZE, PCI_REGION_IO);

	/* System memory space */
	pci_set_region(hose[0].regions + 3,
	CFG_PCI_SLV_MEM_LOCAL,
	CFG_PCI_SLV_MEM_BUS,
	CFG_PCI_SLV_MEM_SIZE,
	PCI_REGION_MEM \| PCI_REGION_MEMORY);

	hose[0].region_count = 4;

	pci_setup_indirect(&hose[0],
	(CFG_IMMR + 0x8300), (CFG_IMMR + 0x8304));

	pci_register_hose(hose);

	/*
	* Write command register
	*/
	reg16 = 0xff;
	dev = PCI_BDF(0, 0, 0);
	pci_hose_read_config_word(&hose[0], dev, PCI_COMMAND, &reg16);
	reg16 \|= PCI_COMMAND_SERR \| PCI_COMMAND_MASTER \| PCI_COMMAND_MEMORY;
	pci_hose_write_config_word(&hose[0], dev, PCI_COMMAND, reg16);

	/*
	* Clear non-reserved bits in status register.
	*/
	pci_hose_write_config_word(&hose[0], dev, PCI_STATUS, 0xffff);
	pci_hose_write_config_byte(&hose[0], dev, PCI_LATENCY_TIMER, 0x80);
	pci_hose_write_config_byte(&hose[0], dev, PCI_CACHE_LINE_SIZE, 0x08);

	printf("PCI 32bit bus on PMC1 & PMC2 & PMC3\n");

	/*
	* Hose scan.
	*/
	hose->last_busno = pci_hose_scan(hose);
	}
	#endif /* CONFIG_PCISLAVE */

	#ifdef CONFIG_OF_FLAT_TREE
	void
	ft_pci_setup(void blob, bd_t bd)
	{
	u32 *p;
	int len;

	p = (u32 *)ft_get_prop(blob, "/" OF_SOC "/pci@8500/bus-range", &len);
	if (p != NULL) {
	p[0] = hose[0].first_busno;
	p[1] = hose[0].last_busno;
	}
	}
	#endif /* CONFIG_OF_FLAT_TREE */
	#endif /* CONFIG_PCI */