board/freescale/mpc8568mds/mpc8568mds.c - platform/external/u-boot - Gitiles

 /*
  * Copyright 2007,2009-2011 Freescale Semiconductor, Inc.
  *
  * (C) Copyright 2002 Scott McNutt <smcnutt@artesyncp.com>
  *
  * SPDX-License-Identifier:	GPL-2.0+
  */

 #include <common.h>
 #include <pci.h>
 #include <asm/processor.h>
 #include <asm/mmu.h>
 #include <asm/immap_85xx.h>
 #include <asm/fsl_pci.h>
 #include <fsl_ddr_sdram.h>
 #include <asm/fsl_serdes.h>
 #include <spd_sdram.h>
 #include <i2c.h>
 #include <ioports.h>
 #include <linux/libfdt.h>
 #include <fdt_support.h>

 #include "bcsr.h"

 const qe_iop_conf_t qe_iop_conf_tab[] = {
 	/* GETH1 */
 	{4, 10, 1, 0, 2}, /* TxD0 */
 	{4,  9, 1, 0, 2}, /* TxD1 */
 	{4,  8, 1, 0, 2}, /* TxD2 */
 	{4,  7, 1, 0, 2}, /* TxD3 */
 	{4, 23, 1, 0, 2}, /* TxD4 */
 	{4, 22, 1, 0, 2}, /* TxD5 */
 	{4, 21, 1, 0, 2}, /* TxD6 */
 	{4, 20, 1, 0, 2}, /* TxD7 */
 	{4, 15, 2, 0, 2}, /* RxD0 */
 	{4, 14, 2, 0, 2}, /* RxD1 */
 	{4, 13, 2, 0, 2}, /* RxD2 */
 	{4, 12, 2, 0, 2}, /* RxD3 */
 	{4, 29, 2, 0, 2}, /* RxD4 */
 	{4, 28, 2, 0, 2}, /* RxD5 */
 	{4, 27, 2, 0, 2}, /* RxD6 */
 	{4, 26, 2, 0, 2}, /* RxD7 */
 	{4, 11, 1, 0, 2}, /* TX_EN */
 	{4, 24, 1, 0, 2}, /* TX_ER */
 	{4, 16, 2, 0, 2}, /* RX_DV */
 	{4, 30, 2, 0, 2}, /* RX_ER */
 	{4, 17, 2, 0, 2}, /* RX_CLK */
 	{4, 19, 1, 0, 2}, /* GTX_CLK */
 	{1, 31, 2, 0, 3}, /* GTX125 */

 	/* GETH2 */
 	{5, 10, 1, 0, 2}, /* TxD0 */
 	{5,  9, 1, 0, 2}, /* TxD1 */
 	{5,  8, 1, 0, 2}, /* TxD2 */
 	{5,  7, 1, 0, 2}, /* TxD3 */
 	{5, 23, 1, 0, 2}, /* TxD4 */
 	{5, 22, 1, 0, 2}, /* TxD5 */
 	{5, 21, 1, 0, 2}, /* TxD6 */
 	{5, 20, 1, 0, 2}, /* TxD7 */
 	{5, 15, 2, 0, 2}, /* RxD0 */
 	{5, 14, 2, 0, 2}, /* RxD1 */
 	{5, 13, 2, 0, 2}, /* RxD2 */
 	{5, 12, 2, 0, 2}, /* RxD3 */
 	{5, 29, 2, 0, 2}, /* RxD4 */
 	{5, 28, 2, 0, 2}, /* RxD5 */
 	{5, 27, 2, 0, 3}, /* RxD6 */
 	{5, 26, 2, 0, 2}, /* RxD7 */
 	{5, 11, 1, 0, 2}, /* TX_EN */
 	{5, 24, 1, 0, 2}, /* TX_ER */
 	{5, 16, 2, 0, 2}, /* RX_DV */
 	{5, 30, 2, 0, 2}, /* RX_ER */
 	{5, 17, 2, 0, 2}, /* RX_CLK */
 	{5, 19, 1, 0, 2}, /* GTX_CLK */
 	{1, 31, 2, 0, 3}, /* GTX125 */
 	{4,  6, 3, 0, 2}, /* MDIO */
 	{4,  5, 1, 0, 2}, /* MDC */

 	/* UART1 */
 	{2, 0, 1, 0, 2}, /* UART_SOUT1 */
 	{2, 1, 1, 0, 2}, /* UART_RTS1 */
 	{2, 2, 2, 0, 2}, /* UART_CTS1 */
 	{2, 3, 2, 0, 2}, /* UART_SIN1 */

 	{0,  0, 0, 0, QE_IOP_TAB_END}, /* END of table */
 };

 void local_bus_init(void);

 int board_early_init_f (void)
 {
 	/*
 	 * Initialize local bus.
 	 */
 	local_bus_init ();

 	enable_8568mds_duart();
 	enable_8568mds_flash_write();
 #if defined(CONFIG_UEC_ETH1) || defined(CONFIG_UEC_ETH2)
 	reset_8568mds_uccs();
 #endif
 #if defined(CONFIG_QE) && !defined(CONFIG_eTSEC_MDIO_BUS)
 	enable_8568mds_qe_mdio();
 #endif

 #ifdef CONFIG_SYS_I2C2_OFFSET
 	/* Enable I2C2_SCL and I2C2_SDA */
 	volatile struct par_io *port_c;
 	port_c = (struct par_io*)(CONFIG_SYS_IMMR + 0xe0140);
 	port_c->cpdir2 |= 0x0f000000;
 	port_c->cppar2 &= ~0x0f000000;
 	port_c->cppar2 |= 0x0a000000;
 #endif

 	return 0;
 }

 int checkboard (void)
 {
 	printf ("Board: 8568 MDS\n");

 	return 0;
 }

 /*
  * Initialize Local Bus
  */
 void
 local_bus_init(void)
 {
 	volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
 	volatile fsl_lbc_t *lbc = LBC_BASE_ADDR;

 	uint clkdiv;
 	sys_info_t sysinfo;

 	get_sys_info(&sysinfo);
 	clkdiv = (lbc->lcrr & LCRR_CLKDIV) * 2;

 	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");
 }

 /*
  * Initialize SDRAM memory on the Local Bus.
  */
 void lbc_sdram_init(void)
 {
 #if defined(CONFIG_SYS_OR2_PRELIM) && defined(CONFIG_SYS_BR2_PRELIM)

 	uint idx;
 	volatile fsl_lbc_t *lbc = LBC_BASE_ADDR;
 	uint *sdram_addr = (uint *)CONFIG_SYS_LBC_SDRAM_BASE;
 	uint lsdmr_common;

 	puts("LBC SDRAM: ");
 	print_size(CONFIG_SYS_LBC_SDRAM_SIZE * 1024 * 1024,
 		   "\n       ");

 	/*
 	 * Setup SDRAM Base and Option Registers
 	 */
 	set_lbc_or(2, CONFIG_SYS_OR2_PRELIM);
 	set_lbc_br(2, CONFIG_SYS_BR2_PRELIM);
 	asm("msync");

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

 	lbc->lsrt = CONFIG_SYS_LBC_LSRT;
 	lbc->mrtpr = CONFIG_SYS_LBC_MRTPR;
 	asm("msync");

 	/*
 	 * MPC8568 uses "new" 15-16 style addressing.
 	 */
 	lsdmr_common = CONFIG_SYS_LBC_LSDMR_COMMON;
 	lsdmr_common |= LSDMR_BSMA1516;

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

 	/*
 	 * Issue NORMAL OP command.
 	 */
 	lbc->lsdmr = lsdmr_common | 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(CONFIG_PCI)
 #ifndef CONFIG_PCI_PNP
 static struct pci_config_table pci_mpc8568mds_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 pci1_hose;
 #endif	/* CONFIG_PCI */

 /*
  * pib_init() -- Initialize the PCA9555 IO expander on the PIB board
  */
 void
 pib_init(void)
 {
 	u8 val8, orig_i2c_bus;
 	/*
 	 * Assign PIB PMC2/3 to PCI bus
 	 */

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

 	val8 = 0x00;
 	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 = 0x00;
 	i2c_write(0x26, 0x6, 1, &val8, 1);
 	val8 = 0x34;
 	i2c_write(0x26, 0x7, 1, &val8, 1);
 	val8 = 0xf9;
 	i2c_write(0x26, 0x2, 1, &val8, 1);
 	val8 = 0xff;
 	i2c_write(0x26, 0x3, 1, &val8, 1);

 	val8 = 0x00;
 	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");
 	i2c_set_bus_num(orig_i2c_bus);
 }

 #ifdef CONFIG_PCI
 void pci_init_board(void)
 {
 	volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
 	int first_free_busno = 0;
 #ifdef CONFIG_PCI1
 	struct fsl_pci_info pci_info;
 	u32 devdisr, pordevsr, io_sel;
 	u32 porpllsr, pci_agent, pci_speed, pci_32, pci_arb, pci_clk_sel;

 	devdisr = in_be32(&gur->devdisr);
 	pordevsr = in_be32(&gur->pordevsr);
 	porpllsr = in_be32(&gur->porpllsr);
 	io_sel = (pordevsr & MPC85xx_PORDEVSR_IO_SEL) >> 19;

 	debug ("   pci_init_board: devdisr=%x, io_sel=%x\n", devdisr, io_sel);

 	pci_speed = 66666000;
 	pci_32 = 1;
 	pci_arb = pordevsr & MPC85xx_PORDEVSR_PCI1_ARB;
 	pci_clk_sel = porpllsr & MPC85xx_PORDEVSR_PCI1_SPD;

 	if (!(devdisr & MPC85xx_DEVDISR_PCI1)) {
 		SET_STD_PCI_INFO(pci_info, 1);
 		set_next_law(pci_info.mem_phys,
 			law_size_bits(pci_info.mem_size), pci_info.law);
 		set_next_law(pci_info.io_phys,
 			law_size_bits(pci_info.io_size), pci_info.law);

 		pci_agent = fsl_setup_hose(&pci1_hose, pci_info.regs);
 		printf("PCI: %d bit, %s MHz, %s, %s, %s (base address %lx)\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",
 			pci_info.regs);

 #ifndef CONFIG_PCI_PNP
 		pci1_hose.config_table = pci_mpc8568mds_config_table;
 #endif
 		first_free_busno = fsl_pci_init_port(&pci_info,
 					&pci1_hose, first_free_busno);
 	} else {
 		printf("PCI: disabled\n");
 	}

 	puts("\n");
 #else
 	setbits_be32(&gur->devdisr, MPC85xx_DEVDISR_PCI1); /* disable */
 #endif

 	fsl_pcie_init_board(first_free_busno);
 }
 #endif /* CONFIG_PCI */

 #if defined(CONFIG_OF_BOARD_SETUP)
 int ft_board_setup(void *blob, bd_t *bd)
 {
 	ft_cpu_setup(blob, bd);

 	FT_FSL_PCI_SETUP;

 	return 0;
 }
 #endif
	/*
	* Copyright 2007,2009-2011 Freescale Semiconductor, Inc.
	*
	* (C) Copyright 2002 Scott McNutt <smcnutt@artesyncp.com>
	*
	* SPDX-License-Identifier: GPL-2.0+
	*/

	#include <common.h>
	#include <pci.h>
	#include <asm/processor.h>
	#include <asm/mmu.h>
	#include <asm/immap_85xx.h>
	#include <asm/fsl_pci.h>
	#include <fsl_ddr_sdram.h>
	#include <asm/fsl_serdes.h>
	#include <spd_sdram.h>
	#include <i2c.h>
	#include <ioports.h>
	#include <linux/libfdt.h>
	#include <fdt_support.h>

	#include "bcsr.h"

	const qe_iop_conf_t qe_iop_conf_tab[] = {
	/* GETH1 */
	{4, 10, 1, 0, 2}, /* TxD0 */
	{4, 9, 1, 0, 2}, /* TxD1 */
	{4, 8, 1, 0, 2}, /* TxD2 */
	{4, 7, 1, 0, 2}, /* TxD3 */
	{4, 23, 1, 0, 2}, /* TxD4 */
	{4, 22, 1, 0, 2}, /* TxD5 */
	{4, 21, 1, 0, 2}, /* TxD6 */
	{4, 20, 1, 0, 2}, /* TxD7 */
	{4, 15, 2, 0, 2}, /* RxD0 */
	{4, 14, 2, 0, 2}, /* RxD1 */
	{4, 13, 2, 0, 2}, /* RxD2 */
	{4, 12, 2, 0, 2}, /* RxD3 */
	{4, 29, 2, 0, 2}, /* RxD4 */
	{4, 28, 2, 0, 2}, /* RxD5 */
	{4, 27, 2, 0, 2}, /* RxD6 */
	{4, 26, 2, 0, 2}, /* RxD7 */
	{4, 11, 1, 0, 2}, /* TX_EN */
	{4, 24, 1, 0, 2}, /* TX_ER */
	{4, 16, 2, 0, 2}, /* RX_DV */
	{4, 30, 2, 0, 2}, /* RX_ER */
	{4, 17, 2, 0, 2}, /* RX_CLK */
	{4, 19, 1, 0, 2}, /* GTX_CLK */
	{1, 31, 2, 0, 3}, /* GTX125 */

	/* GETH2 */
	{5, 10, 1, 0, 2}, /* TxD0 */
	{5, 9, 1, 0, 2}, /* TxD1 */
	{5, 8, 1, 0, 2}, /* TxD2 */
	{5, 7, 1, 0, 2}, /* TxD3 */
	{5, 23, 1, 0, 2}, /* TxD4 */
	{5, 22, 1, 0, 2}, /* TxD5 */
	{5, 21, 1, 0, 2}, /* TxD6 */
	{5, 20, 1, 0, 2}, /* TxD7 */
	{5, 15, 2, 0, 2}, /* RxD0 */
	{5, 14, 2, 0, 2}, /* RxD1 */
	{5, 13, 2, 0, 2}, /* RxD2 */
	{5, 12, 2, 0, 2}, /* RxD3 */
	{5, 29, 2, 0, 2}, /* RxD4 */
	{5, 28, 2, 0, 2}, /* RxD5 */
	{5, 27, 2, 0, 3}, /* RxD6 */
	{5, 26, 2, 0, 2}, /* RxD7 */
	{5, 11, 1, 0, 2}, /* TX_EN */
	{5, 24, 1, 0, 2}, /* TX_ER */
	{5, 16, 2, 0, 2}, /* RX_DV */
	{5, 30, 2, 0, 2}, /* RX_ER */
	{5, 17, 2, 0, 2}, /* RX_CLK */
	{5, 19, 1, 0, 2}, /* GTX_CLK */
	{1, 31, 2, 0, 3}, /* GTX125 */
	{4, 6, 3, 0, 2}, /* MDIO */
	{4, 5, 1, 0, 2}, /* MDC */

	/* UART1 */
	{2, 0, 1, 0, 2}, /* UART_SOUT1 */
	{2, 1, 1, 0, 2}, /* UART_RTS1 */
	{2, 2, 2, 0, 2}, /* UART_CTS1 */
	{2, 3, 2, 0, 2}, /* UART_SIN1 */

	{0, 0, 0, 0, QE_IOP_TAB_END}, /* END of table */
	};

	void local_bus_init(void);

	int board_early_init_f (void)
	{
	/*
	* Initialize local bus.
	*/
	local_bus_init ();

	enable_8568mds_duart();
	enable_8568mds_flash_write();
	#if defined(CONFIG_UEC_ETH1) \|\| defined(CONFIG_UEC_ETH2)
	reset_8568mds_uccs();
	#endif
	#if defined(CONFIG_QE) && !defined(CONFIG_eTSEC_MDIO_BUS)
	enable_8568mds_qe_mdio();
	#endif

	#ifdef CONFIG_SYS_I2C2_OFFSET
	/* Enable I2C2_SCL and I2C2_SDA */
	volatile struct par_io *port_c;
	port_c = (struct par_io*)(CONFIG_SYS_IMMR + 0xe0140);
	port_c->cpdir2 \|= 0x0f000000;
	port_c->cppar2 &= ~0x0f000000;
	port_c->cppar2 \|= 0x0a000000;
	#endif

	return 0;
	}

	int checkboard (void)
	{
	printf ("Board: 8568 MDS\n");

	return 0;
	}

	/*
	* Initialize Local Bus
	*/
	void
	local_bus_init(void)
	{
	volatile ccsr_gur_t gur = (void )(CONFIG_SYS_MPC85xx_GUTS_ADDR);
	volatile fsl_lbc_t *lbc = LBC_BASE_ADDR;

	uint clkdiv;
	sys_info_t sysinfo;

	get_sys_info(&sysinfo);
	clkdiv = (lbc->lcrr & LCRR_CLKDIV) * 2;

	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");
	}

	/*
	* Initialize SDRAM memory on the Local Bus.
	*/
	void lbc_sdram_init(void)
	{
	#if defined(CONFIG_SYS_OR2_PRELIM) && defined(CONFIG_SYS_BR2_PRELIM)

	uint idx;
	volatile fsl_lbc_t *lbc = LBC_BASE_ADDR;
	uint sdram_addr = (uint )CONFIG_SYS_LBC_SDRAM_BASE;
	uint lsdmr_common;

	puts("LBC SDRAM: ");
	print_size(CONFIG_SYS_LBC_SDRAM_SIZE * 1024 * 1024,
	"\n ");

	/*
	* Setup SDRAM Base and Option Registers
	*/
	set_lbc_or(2, CONFIG_SYS_OR2_PRELIM);
	set_lbc_br(2, CONFIG_SYS_BR2_PRELIM);
	asm("msync");

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

	lbc->lsrt = CONFIG_SYS_LBC_LSRT;
	lbc->mrtpr = CONFIG_SYS_LBC_MRTPR;
	asm("msync");

	/*
	* MPC8568 uses "new" 15-16 style addressing.
	*/
	lsdmr_common = CONFIG_SYS_LBC_LSDMR_COMMON;
	lsdmr_common \|= LSDMR_BSMA1516;

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

	/*
	* Issue NORMAL OP command.
	*/
	lbc->lsdmr = lsdmr_common \| 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(CONFIG_PCI)
	#ifndef CONFIG_PCI_PNP
	static struct pci_config_table pci_mpc8568mds_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 pci1_hose;
	#endif /* CONFIG_PCI */

	/*
	* pib_init() -- Initialize the PCA9555 IO expander on the PIB board
	*/
	void
	pib_init(void)
	{
	u8 val8, orig_i2c_bus;
	/*
	* Assign PIB PMC2/3 to PCI bus
	*/

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

	val8 = 0x00;
	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 = 0x00;
	i2c_write(0x26, 0x6, 1, &val8, 1);
	val8 = 0x34;
	i2c_write(0x26, 0x7, 1, &val8, 1);
	val8 = 0xf9;
	i2c_write(0x26, 0x2, 1, &val8, 1);
	val8 = 0xff;
	i2c_write(0x26, 0x3, 1, &val8, 1);

	val8 = 0x00;
	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");
	i2c_set_bus_num(orig_i2c_bus);
	}

	#ifdef CONFIG_PCI
	void pci_init_board(void)
	{
	volatile ccsr_gur_t gur = (void )(CONFIG_SYS_MPC85xx_GUTS_ADDR);
	int first_free_busno = 0;
	#ifdef CONFIG_PCI1
	struct fsl_pci_info pci_info;
	u32 devdisr, pordevsr, io_sel;
	u32 porpllsr, pci_agent, pci_speed, pci_32, pci_arb, pci_clk_sel;

	devdisr = in_be32(&gur->devdisr);
	pordevsr = in_be32(&gur->pordevsr);
	porpllsr = in_be32(&gur->porpllsr);
	io_sel = (pordevsr & MPC85xx_PORDEVSR_IO_SEL) >> 19;

	debug (" pci_init_board: devdisr=%x, io_sel=%x\n", devdisr, io_sel);

	pci_speed = 66666000;
	pci_32 = 1;
	pci_arb = pordevsr & MPC85xx_PORDEVSR_PCI1_ARB;
	pci_clk_sel = porpllsr & MPC85xx_PORDEVSR_PCI1_SPD;

	if (!(devdisr & MPC85xx_DEVDISR_PCI1)) {
	SET_STD_PCI_INFO(pci_info, 1);
	set_next_law(pci_info.mem_phys,
	law_size_bits(pci_info.mem_size), pci_info.law);
	set_next_law(pci_info.io_phys,
	law_size_bits(pci_info.io_size), pci_info.law);

	pci_agent = fsl_setup_hose(&pci1_hose, pci_info.regs);
	printf("PCI: %d bit, %s MHz, %s, %s, %s (base address %lx)\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",
	pci_info.regs);

	#ifndef CONFIG_PCI_PNP
	pci1_hose.config_table = pci_mpc8568mds_config_table;
	#endif
	first_free_busno = fsl_pci_init_port(&pci_info,
	&pci1_hose, first_free_busno);
	} else {
	printf("PCI: disabled\n");
	}

	puts("\n");
	#else
	setbits_be32(&gur->devdisr, MPC85xx_DEVDISR_PCI1); /* disable */
	#endif

	fsl_pcie_init_board(first_free_busno);
	}
	#endif /* CONFIG_PCI */

	#if defined(CONFIG_OF_BOARD_SETUP)
	int ft_board_setup(void blob, bd_t bd)
	{
	ft_cpu_setup(blob, bd);

	FT_FSL_PCI_SETUP;

	return 0;
	}
	#endif