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https://github.com/AsahiLinux/u-boot
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412 lines
15 KiB
C
412 lines
15 KiB
C
/*
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* (C) Copyright 2005
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* Stefan Roese, DENX Software Engineering, sr@denx.de.
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*
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* Copyright 2004 Freescale Semiconductor.
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* (C) Copyright 2002,2003, Motorola Inc.
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* Xianghua Xiao, (X.Xiao@motorola.com)
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*
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* (C) Copyright 2002 Scott McNutt <smcnutt@artesyncp.com>
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <pci.h>
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#include <asm/processor.h>
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#include <asm/immap_85xx.h>
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#include <ioports.h>
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#include <spd.h>
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#include <flash.h>
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DECLARE_GLOBAL_DATA_PTR;
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extern flash_info_t flash_info[]; /* FLASH chips info */
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void local_bus_init (void);
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long int fixed_sdram (void);
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ulong flash_get_size (ulong base, int banknum);
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#ifdef CONFIG_CPM2
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/*
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* I/O Port configuration table
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*
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* if conf is 1, then that port pin will be configured at boot time
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* according to the five values podr/pdir/ppar/psor/pdat for that entry
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*/
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const iop_conf_t iop_conf_tab[4][32] = {
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/* Port A configuration */
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{ /* conf ppar psor pdir podr pdat */
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/* PA31 */ { 1, 1, 1, 0, 0, 0 }, /* FCC1 MII COL */
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/* PA30 */ { 1, 1, 1, 0, 0, 0 }, /* FCC1 MII CRS */
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/* PA29 */ { 1, 1, 1, 1, 0, 0 }, /* FCC1 MII TX_ER */
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/* PA28 */ { 1, 1, 1, 1, 0, 0 }, /* FCC1 MII TX_EN */
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/* PA27 */ { 1, 1, 1, 0, 0, 0 }, /* FCC1 MII RX_DV */
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/* PA26 */ { 1, 1, 1, 0, 0, 0 }, /* FCC1 MII RX_ER */
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/* PA25 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[0] */
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/* PA24 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[1] */
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/* PA23 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[2] */
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/* PA22 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[3] */
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/* PA21 */ { 1, 1, 0, 1, 0, 0 }, /* FCC1 MII TxD[3] */
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/* PA20 */ { 1, 1, 0, 1, 0, 0 }, /* FCC1 MII TxD[2] */
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/* PA19 */ { 1, 1, 0, 1, 0, 0 }, /* FCC1 MII TxD[1] */
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/* PA18 */ { 1, 1, 0, 1, 0, 0 }, /* FCC1 MII TxD[0] */
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/* PA17 */ { 1, 1, 0, 0, 0, 0 }, /* FCC1 MII RxD[0] */
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/* PA16 */ { 1, 1, 0, 0, 0, 0 }, /* FCC1 MII RxD[1] */
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/* PA15 */ { 1, 1, 0, 0, 0, 0 }, /* FCC1 MII RxD[2] */
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/* PA14 */ { 1, 1, 0, 0, 0, 0 }, /* FCC1 MII RxD[3] */
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/* PA13 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[3] */
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/* PA12 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[2] */
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/* PA11 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[1] */
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/* PA10 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[0] */
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/* PA9 */ { 0, 1, 1, 1, 0, 0 }, /* FCC1 L1TXD */
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/* PA8 */ { 0, 1, 1, 0, 0, 0 }, /* FCC1 L1RXD */
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/* PA7 */ { 0, 0, 0, 1, 0, 0 }, /* PA7 */
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/* PA6 */ { 0, 1, 1, 1, 0, 0 }, /* TDM A1 L1RSYNC */
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/* PA5 */ { 0, 0, 0, 1, 0, 0 }, /* PA5 */
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/* PA4 */ { 0, 0, 0, 1, 0, 0 }, /* PA4 */
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/* PA3 */ { 0, 0, 0, 1, 0, 0 }, /* PA3 */
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/* PA2 */ { 0, 0, 0, 1, 0, 0 }, /* PA2 */
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/* PA1 */ { 0, 0, 0, 0, 0, 0 }, /* FREERUN */
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/* PA0 */ { 0, 0, 0, 1, 0, 0 } /* PA0 */
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},
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/* Port B configuration */
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{ /* conf ppar psor pdir podr pdat */
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/* PB31 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TX_ER */
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/* PB30 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RX_DV */
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/* PB29 */ { 1, 1, 1, 1, 0, 0 }, /* FCC2 MII TX_EN */
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/* PB28 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RX_ER */
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/* PB27 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII COL */
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/* PB26 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII CRS */
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/* PB25 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[3] */
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/* PB24 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[2] */
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/* PB23 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[1] */
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/* PB22 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[0] */
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/* PB21 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[0] */
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/* PB20 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[1] */
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/* PB19 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[2] */
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/* PB18 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[3] */
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/* PB17 */ { 1, 1, 0, 0, 0, 0 }, /* FCC3:RX_DIV */
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/* PB16 */ { 1, 1, 0, 0, 0, 0 }, /* FCC3:RX_ERR */
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/* PB15 */ { 1, 1, 0, 1, 0, 0 }, /* FCC3:TX_ERR */
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/* PB14 */ { 1, 1, 0, 1, 0, 0 }, /* FCC3:TX_EN */
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/* PB13 */ { 1, 1, 0, 0, 0, 0 }, /* FCC3:COL */
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/* PB12 */ { 1, 1, 0, 0, 0, 0 }, /* FCC3:CRS */
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/* PB11 */ { 1, 1, 0, 0, 0, 0 }, /* FCC3:RXD */
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/* PB10 */ { 1, 1, 0, 0, 0, 0 }, /* FCC3:RXD */
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/* PB9 */ { 1, 1, 0, 0, 0, 0 }, /* FCC3:RXD */
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/* PB8 */ { 1, 1, 0, 0, 0, 0 }, /* FCC3:RXD */
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/* PB7 */ { 1, 1, 0, 1, 0, 0 }, /* FCC3:TXD */
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/* PB6 */ { 1, 1, 0, 1, 0, 0 }, /* FCC3:TXD */
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/* PB5 */ { 1, 1, 0, 1, 0, 0 }, /* FCC3:TXD */
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/* PB4 */ { 1, 1, 0, 1, 0, 0 }, /* FCC3:TXD */
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/* PB3 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
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/* PB2 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
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/* PB1 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
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/* PB0 */ { 0, 0, 0, 0, 0, 0 } /* pin doesn't exist */
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},
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/* Port C */
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{ /* conf ppar psor pdir podr pdat */
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/* PC31 */ { 0, 0, 0, 1, 0, 0 }, /* PC31 */
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/* PC30 */ { 0, 0, 0, 1, 0, 0 }, /* PC30 */
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/* PC29 */ { 0, 1, 1, 0, 0, 0 }, /* SCC1 EN *CLSN */
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/* PC28 */ { 0, 0, 0, 1, 0, 0 }, /* PC28 */
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/* PC27 */ { 0, 0, 0, 1, 0, 0 }, /* UART Clock in */
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/* PC26 */ { 0, 0, 0, 1, 0, 0 }, /* PC26 */
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/* PC25 */ { 0, 0, 0, 1, 0, 0 }, /* PC25 */
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/* PC24 */ { 0, 0, 0, 1, 0, 0 }, /* PC24 */
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/* PC23 */ { 0, 1, 0, 1, 0, 0 }, /* ATMTFCLK */
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/* PC22 */ { 0, 1, 0, 0, 0, 0 }, /* ATMRFCLK */
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/* PC21 */ { 1, 1, 0, 0, 0, 0 }, /* SCC1 EN RXCLK */
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/* PC20 */ { 1, 1, 0, 0, 0, 0 }, /* SCC1 EN TXCLK */
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/* PC19 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RX_CLK CLK13 */
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/* PC18 */ { 1, 1, 0, 0, 0, 0 }, /* FCC Tx Clock (CLK14) */
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/* PC17 */ { 1, 1, 0, 0, 0, 0 }, /* PC17 */
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/* PC16 */ { 1, 1, 0, 0, 0, 0 }, /* FCC Tx Clock (CLK16) */
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/* PC15 */ { 0, 1, 0, 0, 0, 0 }, /* PC15 */
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/* PC14 */ { 0, 1, 0, 0, 0, 0 }, /* SCC1 EN *CD */
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/* PC13 */ { 0, 1, 0, 0, 0, 0 }, /* PC13 */
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/* PC12 */ { 0, 1, 0, 1, 0, 0 }, /* PC12 */
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/* PC11 */ { 0, 0, 0, 1, 0, 0 }, /* LXT971 transmit control */
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/* PC10 */ { 0, 0, 0, 1, 0, 0 }, /* FETHMDC */
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/* PC9 */ { 0, 0, 0, 0, 0, 0 }, /* FETHMDIO */
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/* PC8 */ { 0, 0, 0, 1, 0, 0 }, /* PC8 */
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/* PC7 */ { 0, 0, 0, 1, 0, 0 }, /* PC7 */
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/* PC6 */ { 0, 0, 0, 1, 0, 0 }, /* PC6 */
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/* PC5 */ { 0, 0, 0, 1, 0, 0 }, /* PC5 */
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/* PC4 */ { 0, 0, 0, 1, 0, 0 }, /* PC4 */
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/* PC3 */ { 0, 0, 0, 1, 0, 0 }, /* PC3 */
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/* PC2 */ { 0, 0, 0, 1, 0, 1 }, /* ENET FDE */
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/* PC1 */ { 0, 0, 0, 1, 0, 0 }, /* ENET DSQE */
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/* PC0 */ { 0, 0, 0, 1, 0, 0 }, /* ENET LBK */
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},
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/* Port D */
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{ /* conf ppar psor pdir podr pdat */
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/* PD31 */ { 1, 1, 0, 0, 0, 0 }, /* SCC1 EN RxD */
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/* PD30 */ { 1, 1, 1, 1, 0, 0 }, /* SCC1 EN TxD */
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/* PD29 */ { 1, 1, 0, 1, 0, 0 }, /* SCC1 EN TENA */
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/* PD28 */ { 1, 1, 0, 0, 0, 0 }, /* PD28 */
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/* PD27 */ { 1, 1, 0, 1, 0, 0 }, /* PD27 */
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/* PD26 */ { 1, 1, 0, 1, 0, 0 }, /* PD26 */
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/* PD25 */ { 0, 0, 0, 1, 0, 0 }, /* PD25 */
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/* PD24 */ { 0, 0, 0, 1, 0, 0 }, /* PD24 */
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/* PD23 */ { 0, 0, 0, 1, 0, 0 }, /* PD23 */
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/* PD22 */ { 0, 0, 0, 1, 0, 0 }, /* PD22 */
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/* PD21 */ { 0, 0, 0, 1, 0, 0 }, /* PD21 */
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/* PD20 */ { 0, 0, 0, 1, 0, 0 }, /* PD20 */
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/* PD19 */ { 0, 0, 0, 1, 0, 0 }, /* PD19 */
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/* PD18 */ { 0, 0, 0, 1, 0, 0 }, /* PD18 */
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/* PD17 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXPRTY */
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/* PD16 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXPRTY */
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/* PD15 */ { 0, 1, 1, 0, 1, 0 }, /* I2C SDA */
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/* PD14 */ { 0, 0, 0, 1, 0, 0 }, /* LED */
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/* PD13 */ { 0, 0, 0, 0, 0, 0 }, /* PD13 */
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/* PD12 */ { 0, 0, 0, 0, 0, 0 }, /* PD12 */
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/* PD11 */ { 0, 0, 0, 0, 0, 0 }, /* PD11 */
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/* PD10 */ { 0, 0, 0, 0, 0, 0 }, /* PD10 */
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/* PD9 */ { 0, 1, 0, 1, 0, 0 }, /* SMC1 TXD */
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/* PD8 */ { 0, 1, 0, 0, 0, 0 }, /* SMC1 RXD */
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/* PD7 */ { 0, 0, 0, 1, 0, 1 }, /* PD7 */
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/* PD6 */ { 0, 0, 0, 1, 0, 1 }, /* PD6 */
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/* PD5 */ { 0, 0, 0, 1, 0, 1 }, /* PD5 */
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/* PD4 */ { 0, 0, 0, 1, 0, 1 }, /* PD4 */
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/* PD3 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
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/* PD2 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
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/* PD1 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
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/* PD0 */ { 0, 0, 0, 0, 0, 0 } /* pin doesn't exist */
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}
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};
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#endif /* CONFIG_CPM2 */
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#define CASL_STRING1 "casl=xx"
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#define CASL_STRING2 "casl="
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static const int casl_table[] = { 20, 25, 30 };
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#define N_CASL (sizeof(casl_table) / sizeof(casl_table[0]))
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int cas_latency(void)
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{
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char *s = getenv("serial#");
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int casl;
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int val;
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int i;
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casl = CONFIG_DDR_DEFAULT_CL;
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if (s != NULL) {
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if (strncmp(s + strlen(s) - strlen(CASL_STRING1), CASL_STRING2,
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strlen(CASL_STRING2)) == 0) {
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val = simple_strtoul(s + strlen(s) - 2, NULL, 10);
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for (i=0; i<N_CASL; ++i) {
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if (val == casl_table[i]) {
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return val;
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}
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}
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}
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}
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return casl;
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}
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int checkboard (void)
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{
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char *s = getenv("serial#");
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printf("Board: %s", CONFIG_BOARDNAME);
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if (s != NULL) {
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puts(", serial# ");
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puts(s);
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}
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putc('\n');
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#ifdef CONFIG_PCI
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printf ("PCI1: 32 bit, %d MHz (compiled)\n",
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CONFIG_SYS_CLK_FREQ / 1000000);
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#else
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printf ("PCI1: disabled\n");
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#endif
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/*
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* Initialize local bus.
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*/
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local_bus_init ();
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return 0;
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}
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int misc_init_r (void)
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{
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volatile immap_t *immap = (immap_t *)CFG_IMMR;
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volatile ccsr_lbc_t *memctl = &immap->im_lbc;
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/*
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* Adjust flash start and offset to detected values
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*/
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gd->bd->bi_flashstart = 0 - gd->bd->bi_flashsize;
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gd->bd->bi_flashoffset = 0;
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/*
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* Check if boot FLASH isn't max size
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*/
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if (gd->bd->bi_flashsize < (0 - CFG_FLASH0)) {
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memctl->or0 = gd->bd->bi_flashstart | (CFG_OR0_PRELIM & 0x00007fff);
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memctl->br0 = gd->bd->bi_flashstart | (CFG_BR0_PRELIM & 0x00007fff);
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/*
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* Re-check to get correct base address
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*/
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flash_get_size(gd->bd->bi_flashstart, CFG_MAX_FLASH_BANKS - 1);
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}
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/*
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* Check if only one FLASH bank is available
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*/
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if (gd->bd->bi_flashsize != CFG_MAX_FLASH_BANKS * (0 - CFG_FLASH0)) {
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memctl->or1 = 0;
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memctl->br1 = 0;
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/*
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* Re-do flash protection upon new addresses
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*/
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flash_protect (FLAG_PROTECT_CLEAR,
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gd->bd->bi_flashstart, 0xffffffff,
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&flash_info[CFG_MAX_FLASH_BANKS - 1]);
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/* Monitor protection ON by default */
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flash_protect (FLAG_PROTECT_SET,
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CFG_MONITOR_BASE, CFG_MONITOR_BASE + monitor_flash_len - 1,
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&flash_info[CFG_MAX_FLASH_BANKS - 1]);
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/* Environment protection ON by default */
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flash_protect (FLAG_PROTECT_SET,
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CFG_ENV_ADDR,
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CFG_ENV_ADDR + CFG_ENV_SECT_SIZE - 1,
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&flash_info[CFG_MAX_FLASH_BANKS - 1]);
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/* Redundant environment protection ON by default */
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flash_protect (FLAG_PROTECT_SET,
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CFG_ENV_ADDR_REDUND,
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CFG_ENV_ADDR_REDUND + CFG_ENV_SIZE_REDUND - 1,
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&flash_info[CFG_MAX_FLASH_BANKS - 1]);
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}
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return 0;
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}
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/*
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* Initialize Local Bus
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*/
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void local_bus_init (void)
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{
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volatile immap_t *immap = (immap_t *) CFG_IMMR;
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volatile ccsr_gur_t *gur = &immap->im_gur;
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volatile ccsr_lbc_t *lbc = &immap->im_lbc;
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uint clkdiv;
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uint lbc_hz;
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sys_info_t sysinfo;
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/*
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* Errata LBC11.
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* Fix Local Bus clock glitch when DLL is enabled.
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*
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* If localbus freq is < 66Mhz, DLL bypass mode must be used.
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* If localbus freq is > 133Mhz, DLL can be safely enabled.
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* Between 66 and 133, the DLL is enabled with an override workaround.
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*/
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get_sys_info (&sysinfo);
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clkdiv = lbc->lcrr & 0x0f;
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lbc_hz = sysinfo.freqSystemBus / 1000000 / clkdiv;
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if (lbc_hz < 66) {
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lbc->lcrr = CFG_LBC_LCRR | 0x80000000; /* DLL Bypass */
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lbc->ltedr = 0xa4c80000; /* DK: !!! */
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} else if (lbc_hz >= 133) {
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lbc->lcrr = CFG_LBC_LCRR & (~0x80000000); /* DLL Enabled */
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} else {
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/*
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* On REV1 boards, need to change CLKDIV before enable DLL.
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* Default CLKDIV is 8, change it to 4 temporarily.
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*/
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uint pvr = get_pvr ();
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uint temp_lbcdll = 0;
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if (pvr == PVR_85xx_REV1) {
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/* FIXME: Justify the high bit here. */
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lbc->lcrr = 0x10000004;
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}
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lbc->lcrr = CFG_LBC_LCRR & (~0x80000000); /* DLL Enabled */
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udelay (200);
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/*
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* Sample LBC DLL ctrl reg, upshift it to set the
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* override bits.
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*/
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temp_lbcdll = gur->lbcdllcr;
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gur->lbcdllcr = (((temp_lbcdll & 0xff) << 16) | 0x80000000);
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asm ("sync;isync;msync");
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}
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}
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#if defined(CONFIG_PCI)
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/*
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* Initialize PCI Devices, report devices found.
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*/
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#ifndef CONFIG_PCI_PNP
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static struct pci_config_table pci_mpc85xxads_config_table[] = {
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{PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
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PCI_IDSEL_NUMBER, PCI_ANY_ID,
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pci_cfgfunc_config_device, {PCI_ENET0_IOADDR,
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PCI_ENET0_MEMADDR,
|
|
PCI_COMMAND_MEMORY |
|
|
PCI_COMMAND_MASTER}},
|
|
{}
|
|
};
|
|
#endif
|
|
|
|
|
|
static struct pci_controller hose = {
|
|
#ifndef CONFIG_PCI_PNP
|
|
config_table:pci_mpc85xxads_config_table,
|
|
#endif
|
|
};
|
|
|
|
#endif /* CONFIG_PCI */
|
|
|
|
|
|
void pci_init_board (void)
|
|
{
|
|
#ifdef CONFIG_PCI
|
|
extern void pci_mpc85xx_init (struct pci_controller *hose);
|
|
|
|
pci_mpc85xx_init (&hose);
|
|
#endif /* CONFIG_PCI */
|
|
}
|