309 lines
13 KiB
C
309 lines
13 KiB
C
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/*
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* (C) Copyright 2001-2003
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* (C) Copyright 2003 Arabella Software Ltd.
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* Yuli Barcohen <yuli@arabellasw.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 <ioports.h>
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#include <mpc8260.h>
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#include <asm/m8260_pci.h>
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#include <i2c.h>
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#include <spd.h>
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#include <miiphy.h>
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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 */
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{ /* conf ppar psor pdir podr pdat */
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/* PA31 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 TxENB */
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/* PA30 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 TxClav */
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/* PA29 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 TxSOC */
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/* PA28 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 RxENB */
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/* PA27 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 RxSOC */
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/* PA26 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 RxClav */
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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 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[4] */
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/* PA20 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[5] */
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/* PA19 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[6] */
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/* PA18 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[7] */
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/* PA17 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[7] */
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/* PA16 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[6] */
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/* PA15 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[5] */
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/* PA14 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[4] */
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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 }, /* SMC2 TXD */
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/* PA8 */ { 0, 1, 1, 0, 0, 0 }, /* SMC2 RXD */
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/* PA7 */ { 0, 0, 0, 0, 0, 0 }, /* PA7 */
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/* PA6 */ { 0, 0, 0, 0, 0, 0 }, /* PA6 */
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/* PA5 */ { 0, 0, 0, 0, 0, 0 }, /* PA5 */
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/* PA4 */ { 0, 0, 0, 0, 0, 0 }, /* PA4 */
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/* PA3 */ { 0, 0, 0, 0, 0, 0 }, /* PA3 */
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/* PA2 */ { 0, 0, 0, 0, 0, 0 }, /* PA2 */
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/* PA1 */ { 0, 0, 0, 0, 0, 0 }, /* PA1 */
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/* PA0 */ { 0, 0, 0, 0, 0, 0 } /* PA0 */
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},
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/* Port B */
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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 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RX_DIV */
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/* PB16 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RX_ERR */
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/* PB15 */ { 0, 1, 0, 1, 0, 0 }, /* FCC3:TX_ERR */
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/* PB14 */ { 0, 1, 0, 1, 0, 0 }, /* FCC3:TX_EN */
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/* PB13 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:COL */
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/* PB12 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:CRS */
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/* PB11 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RXD */
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/* PB10 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RXD */
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/* PB9 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RXD */
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/* PB8 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RXD */
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/* PB7 */ { 0, 1, 0, 1, 0, 0 }, /* FCC3:TXD */
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/* PB6 */ { 0, 1, 0, 1, 0, 0 }, /* FCC3:TXD */
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/* PB5 */ { 0, 1, 0, 1, 0, 0 }, /* FCC3:TXD */
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/* PB4 */ { 0, 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, 0, 0, 0 }, /* PC31 */
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/* PC30 */ { 0, 0, 0, 0, 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, 0, 0, 0 }, /* PC28 */
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/* PC27 */ { 0, 0, 0, 0, 0, 0 }, /* PC27 */
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/* PC26 */ { 0, 0, 0, 0, 0, 0 }, /* PC26 */
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/* PC25 */ { 0, 0, 0, 0, 0, 0 }, /* PC25 */
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/* PC24 */ { 0, 0, 0, 0, 0, 0 }, /* PC24 */
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/* PC23 */ { 0, 1, 0, 0, 0, 0 }, /* SCC1 EN RXCLK */
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/* PC22 */ { 0, 1, 0, 0, 0, 0 }, /* SCC1 EN TXCLK */
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/* PC21 */ { 0, 0, 0, 0, 0, 0 }, /* PC21 */
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/* PC20 */ { 0, 0, 0, 0, 0, 0 }, /* PC20 */
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/* PC19 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII Rx Clock (CLK13) */
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/* PC18 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII Tx Clock (CLK14) */
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/* PC17 */ { 0, 0, 0, 0, 0, 0 }, /* PC17 */
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/* PC16 */ { 0, 0, 0, 0, 0, 0 }, /* PC16 */
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/* PC15 */ { 0, 0, 0, 0, 0, 0 }, /* PC15 */
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/* PC14 */ { 0, 1, 0, 0, 0, 0 }, /* SCC1 EN RENA */
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/* PC13 */ { 0, 0, 0, 0, 0, 0 }, /* PC13 */
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/* PC12 */ { 0, 0, 0, 0, 0, 0 }, /* PC12 */
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/* PC11 */ { 0, 0, 0, 0, 0, 0 }, /* PC11 */
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/* PC10 */ { 1, 0, 0, 1, 0, 0 }, /* LXT972 MDC */
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/* PC9 */ { 1, 0, 0, 0, 0, 0 }, /* LXT972 MDIO */
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/* PC8 */ { 0, 0, 0, 0, 0, 0 }, /* PC8 */
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/* PC7 */ { 0, 0, 0, 0, 0, 0 }, /* PC7 */
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/* PC6 */ { 0, 0, 0, 0, 0, 0 }, /* PC6 */
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/* PC5 */ { 0, 0, 0, 0, 0, 0 }, /* PC5 */
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/* PC4 */ { 0, 0, 0, 0, 0, 0 }, /* PC4 */
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/* PC3 */ { 0, 0, 0, 0, 0, 0 }, /* PC3 */
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/* PC2 */ { 0, 0, 0, 0, 0, 0 }, /* PC2 */
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/* PC1 */ { 0, 0, 0, 0, 0, 0 }, /* PC1 */
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/* PC0 */ { 0, 0, 0, 0, 0, 0 }, /* PC0 */
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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 */ { 0, 1, 0, 0, 0, 0 }, /* SCC1 EN RxD */
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/* PD30 */ { 0, 1, 1, 1, 0, 0 }, /* SCC1 EN TxD */
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/* PD29 */ { 0, 1, 0, 1, 0, 0 }, /* SCC1 EN TENA */
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/* PD28 */ { 0, 0, 0, 0, 0, 0 }, /* PD28 */
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/* PD27 */ { 0, 0, 0, 0, 0, 0 }, /* PD27 */
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/* PD26 */ { 0, 0, 0, 0, 0, 0 }, /* PD26 */
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/* PD25 */ { 0, 0, 0, 0, 0, 0 }, /* PD25 */
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/* PD24 */ { 0, 0, 0, 0, 0, 0 }, /* PD24 */
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/* PD23 */ { 0, 0, 0, 0, 0, 0 }, /* PD23 */
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/* PD22 */ { 0, 0, 0, 0, 0, 0 }, /* PD22 */
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/* PD21 */ { 0, 0, 0, 0, 0, 0 }, /* PD21 */
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/* PD20 */ { 0, 0, 0, 0, 0, 0 }, /* PD20 */
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/* PD19 */ { 0, 0, 0, 0, 0, 0 }, /* PD19 */
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/* PD18 */ { 0, 0, 0, 0, 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 */ { 1, 1, 1, 0, 1, 0 }, /* I2C SDA */
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/* PD14 */ { 1, 1, 1, 0, 1, 0 }, /* I2C SCL */
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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 */ { 1, 1, 0, 1, 0, 0 }, /* SMC1 TXD */
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/* PD8 */ { 1, 1, 0, 0, 0, 0 }, /* SMC1 RXD */
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/* PD7 */ { 0, 0, 0, 0, 0, 0 }, /* PD7 */
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/* PD6 */ { 0, 0, 0, 0, 0, 0 }, /* PD6 */
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/* PD5 */ { 0, 0, 0, 0, 0, 0 }, /* PD5 */
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/* PD4 */ { 0, 0, 0, 0, 0, 0 }, /* 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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#ifdef CFG_NVRAM_ACCESS_ROUTINE
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void *nvram_read(void *dest, long src, size_t count)
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{
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return memcpy(dest, (const void *)src, count);
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}
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void nvram_write(long dest, const void *src, size_t count)
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{
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vu_char *p1 = (vu_char *)(CFG_EEPROM + 0x1555);
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vu_char *p2 = (vu_char *)(CFG_EEPROM + 0x0AAA);
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vu_char *d = (vu_char *)dest;
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const uchar *s = (const uchar *)src;
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/* Unprotect the EEPROM */
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*p1 = 0xAA;
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*p2 = 0x55;
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*p1 = 0x80;
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*p1 = 0xAA;
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*p2 = 0x55;
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*p1 = 0x20;
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udelay(10000);
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/* Write the data to the EEPROM */
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while (count--) {
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*d++ = *s++;
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while (*(d - 1) != *(s - 1))
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/* wait */;
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}
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/* Protect the EEPROM */
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*p1 = 0xAA;
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*p2 = 0x55;
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*p1 = 0xA0;
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udelay(10000);
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}
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#endif /* CFG_NVRAM_ACCESS_ROUTINE */
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long int initdram(int board_type)
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{
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vu_char *bcsr = (vu_char *)CFG_BCSR;
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volatile immap_t *immap = (immap_t *)CFG_IMMR;
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volatile memctl8260_t *memctl = &immap->im_memctl;
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vu_char *ramaddr;
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uchar c = 0xFF;
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long int msize = CFG_SDRAM_SIZE;
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uint psdmr = CFG_PSDMR;
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int i;
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if (bcsr[4] & BCSR_PCI_MODE) { /* PCI mode selected by JP9 */
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immap->im_clkrst.car_sccr |= M826X_SCCR_PCI_MODE_EN;
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immap->im_siu_conf.sc_siumcr =
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(immap->im_siu_conf.sc_siumcr & ~SIUMCR_LBPC11)
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| SIUMCR_LBPC01;
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}
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#ifndef CFG_RAMBOOT
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immap->im_siu_conf.sc_ppc_acr = 0x03;
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immap->im_siu_conf.sc_ppc_alrh = 0x30126745;
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immap->im_siu_conf.sc_tescr1 = 0x00004000;
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memctl->memc_mptpr = CFG_MPTPR;
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#ifdef CFG_LSDRAM_BASE
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/*
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Initialise local bus SDRAM only if the pins
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are configured as local bus pins and not as PCI.
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*/
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if ((immap->im_siu_conf.sc_siumcr & SIUMCR_LBPC11) == SIUMCR_LBPC00) {
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memctl->memc_lsrt = CFG_LSRT;
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memctl->memc_or4 = 0xFFC01480;
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memctl->memc_br4 = CFG_LSDRAM_BASE | 0x00001861;
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memctl->memc_lsdmr = CFG_LSDMR | PSDMR_OP_PREA;
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ramaddr = (vu_char *)CFG_LSDRAM_BASE;
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*ramaddr = c;
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memctl->memc_lsdmr = CFG_LSDMR | PSDMR_OP_CBRR;
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for (i = 0; i < 8; i++)
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*ramaddr = c;
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memctl->memc_lsdmr = CFG_LSDMR | PSDMR_OP_MRW;
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*ramaddr = c;
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memctl->memc_lsdmr = CFG_LSDMR | PSDMR_RFEN;
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}
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#endif /* CFG_LSDRAM_BASE */
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/* Initialise 60x bus SDRAM */
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memctl->memc_psrt = CFG_PSRT;
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|
|
memctl->memc_or2 = 0xFC0028C0;
|
||
|
|
memctl->memc_br2 = CFG_SDRAM_BASE | 0x00000041;
|
||
|
|
/*
|
||
|
|
* The mode data for Mode Register Write command must appear on
|
||
|
|
* the address lines during a mode-set cycle. It is driven by
|
||
|
|
* the memory controller, in single PowerQUICC II mode,
|
||
|
|
* according to PSDMR[CL] and PSDMR[BL] fields. In
|
||
|
|
* 60x-compatible mode, software must drive the correct value on
|
||
|
|
* the address lines. BL=0 because for 64-bit port size burst
|
||
|
|
* length must be 4.
|
||
|
|
*/
|
||
|
|
ramaddr = (vu_char *)(CFG_SDRAM_BASE |
|
||
|
|
((psdmr & PSDMR_CL_MSK) << 7) | 0x10);
|
||
|
|
memctl->memc_psdmr = psdmr | PSDMR_OP_PREA; /* Precharge all banks */
|
||
|
|
*ramaddr = c;
|
||
|
|
memctl->memc_psdmr = psdmr | PSDMR_OP_CBRR; /* CBR refresh */
|
||
|
|
for (i = 0; i < 8; i++)
|
||
|
|
*ramaddr = c;
|
||
|
|
memctl->memc_psdmr = psdmr | PSDMR_OP_MRW; /* Mode Register write */
|
||
|
|
*ramaddr = c;
|
||
|
|
memctl->memc_psdmr = psdmr | PSDMR_RFEN; /* Refresh enable */
|
||
|
|
*ramaddr = c;
|
||
|
|
#endif /* CFG_RAMBOOT */
|
||
|
|
|
||
|
|
/* Return total 60x bus SDRAM size */
|
||
|
|
return msize * 1024 * 1024;
|
||
|
|
}
|
||
|
|
|
||
|
|
int checkboard(void)
|
||
|
|
{
|
||
|
|
vu_char *bcsr = (vu_char *)CFG_BCSR;
|
||
|
|
|
||
|
|
printf("Board: Zephyr ZPC.1900 Rev. %c\n", bcsr[2] + 0x40);
|
||
|
|
return 0;
|
||
|
|
}
|