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419abb6af6
Fix: ep82xxm.c: In function 'initdram': ep82xxm.c:233:16: warning: variable 'ramtmp' set but not used [-Wunused-but-set-variable] Signed-off-by: Wolfgang Denk <wd@denx.de>
291 lines
12 KiB
C
291 lines
12 KiB
C
/*
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* Copyright (C) 2006 Embedded Planet, LLC.
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*
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* Support for Embedded Planet EP82xxM boards.
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* Tested on EP82xxM (MPC8270).
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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 <mpc8260.h>
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#include <ioports.h>
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#include <asm/m8260_pci.h>
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#ifdef CONFIG_PCI
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#include <pci.h>
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#endif
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#include <miiphy.h>
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#include <linux/compiler.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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#define CONFIG_SYS_FCC2 1
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#define CONFIG_SYS_FCC3 1
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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, 0, 0, 0, 0, 1 }, /* PA31 */
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/* PA30 */ { 0, 0, 0, 0, 0, 1 }, /* PA30 */
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/* PA29 */ { 0, 0, 0, 0, 0, 1 }, /* PA29 */
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/* PA28 */ { 0, 0, 0, 0, 0, 1 }, /* PA28 */
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/* PA27 */ { 0, 0, 0, 0, 0, 1 }, /* PA27 */
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/* PA26 */ { 0, 0, 0, 0, 0, 1 }, /* PA26 */
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/* PA25 */ { 0, 0, 0, 0, 0, 1 }, /* PA25 */
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/* PA24 */ { 0, 0, 0, 0, 0, 1 }, /* PA24 */
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/* PA23 */ { 0, 0, 0, 0, 0, 1 }, /* PA23 */
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/* PA22 */ { 0, 0, 0, 0, 0, 0 }, /* PA22 */
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/* PA21 */ { 0, 0, 0, 0, 0, 1 }, /* PA21 */
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/* PA20 */ { 0, 0, 0, 0, 0, 1 }, /* PA20 */
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/* PA19 */ { 0, 0, 0, 0, 0, 1 }, /* PA19 */
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/* PA18 */ { 0, 0, 0, 0, 0, 1 }, /* PA18 */
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/* PA17 */ { 0, 0, 0, 0, 0, 1 }, /* PA17 */
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/* PA16 */ { 0, 0, 0, 0, 0, 1 }, /* PA16 */
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/* PA15 */ { 0, 0, 0, 0, 0, 1 }, /* PA15 */
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/* PA14 */ { 0, 0, 0, 0, 0, 1 }, /* PA14 */
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/* PA13 */ { 0, 0, 0, 0, 0, 1 }, /* PA13 */
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/* PA12 */ { 0, 0, 0, 0, 0, 1 }, /* PA12 */
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/* PA11 */ { 0, 0, 0, 0, 0, 1 }, /* PA11 */
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/* PA10 */ { 0, 0, 0, 0, 0, 1 }, /* PA10 */
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/* PA9 */ { 1, 1, 0, 1, 0, 1 }, /* SMC2 TxD */
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/* PA8 */ { 1, 1, 0, 0, 0, 1 }, /* SMC2 RxD */
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/* PA7 */ { 0, 0, 0, 0, 0, 1 }, /* PA7 */
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/* PA6 */ { 0, 0, 0, 0, 0, 1 }, /* PA6 */
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/* PA5 */ { 0, 0, 0, 0, 0, 1 }, /* PA5 */
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/* PA4 */ { 0, 0, 0, 0, 0, 1 }, /* PA4 */
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/* PA3 */ { 0, 0, 0, 0, 0, 1 }, /* PA3 */
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/* PA2 */ { 0, 0, 0, 0, 0, 1 }, /* PA2 */
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/* PA1 */ { 0, 0, 0, 0, 0, 1 }, /* PA1 */
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/* PA0 */ { 0, 0, 0, 0, 0, 1 } /* 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 */ { CONFIG_SYS_FCC2, 1, 0, 1, 0, 0 }, /* FCC2 MII TX_ER */
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/* PB30 */ { CONFIG_SYS_FCC2, 1, 0, 0, 0, 0 }, /* FCC2 MII RX_DV */
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/* PB29 */ { CONFIG_SYS_FCC2, 1, 1, 1, 0, 0 }, /* FCC2 MII TX_EN */
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/* PB28 */ { CONFIG_SYS_FCC2, 1, 0, 0, 0, 0 }, /* FCC2 MII RX_ER */
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/* PB27 */ { CONFIG_SYS_FCC2, 1, 0, 0, 0, 0 }, /* FCC2 MII COL */
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/* PB26 */ { CONFIG_SYS_FCC2, 1, 0, 0, 0, 0 }, /* FCC2 MII CRS */
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/* PB25 */ { CONFIG_SYS_FCC2, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[3] */
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/* PB24 */ { CONFIG_SYS_FCC2, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[2] */
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/* PB23 */ { CONFIG_SYS_FCC2, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[1] */
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/* PB22 */ { CONFIG_SYS_FCC2, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[0] */
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/* PB21 */ { CONFIG_SYS_FCC2, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[0] */
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/* PB20 */ { CONFIG_SYS_FCC2, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[1] */
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/* PB19 */ { CONFIG_SYS_FCC2, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[2] */
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/* PB18 */ { CONFIG_SYS_FCC2, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[3] */
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/* PB17 */ { CONFIG_SYS_FCC3, 1, 0, 0, 0, 0 }, /* FCC3:RX_DIV */
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/* PB16 */ { CONFIG_SYS_FCC3, 1, 0, 0, 0, 0 }, /* FCC3:RX_ERR */
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/* PB15 */ { CONFIG_SYS_FCC3, 1, 0, 1, 0, 0 }, /* FCC3:TX_ERR */
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/* PB14 */ { CONFIG_SYS_FCC3, 1, 0, 1, 0, 0 }, /* FCC3:TX_EN */
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/* PB13 */ { CONFIG_SYS_FCC3, 1, 0, 0, 0, 0 }, /* FCC3:COL */
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/* PB12 */ { CONFIG_SYS_FCC3, 1, 0, 0, 0, 0 }, /* FCC3:CRS */
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/* PB11 */ { CONFIG_SYS_FCC3, 1, 0, 0, 0, 0 }, /* FCC3:RXD */
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/* PB10 */ { CONFIG_SYS_FCC3, 1, 0, 0, 0, 0 }, /* FCC3:RXD */
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/* PB9 */ { CONFIG_SYS_FCC3, 1, 0, 0, 0, 0 }, /* FCC3:RXD */
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/* PB8 */ { CONFIG_SYS_FCC3, 1, 0, 0, 0, 0 }, /* FCC3:RXD */
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/* PB7 */ { 0, 0, 0, 0, 0, 0 }, /* PB7 */
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/* PB6 */ { CONFIG_SYS_FCC3, 1, 0, 1, 0, 0 }, /* FCC3:TXD */
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/* PB5 */ { CONFIG_SYS_FCC3, 1, 0, 1, 0, 0 }, /* FCC3:TXD */
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/* PB4 */ { CONFIG_SYS_FCC3, 1, 0, 1, 0, 0 }, /* FCC3:TXD */
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/* PB3 */ { 0, 0, 0, 0, 0, 0 }, /* non-existent */
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/* PB2 */ { 0, 0, 0, 0, 0, 0 }, /* non-existent */
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/* PB1 */ { 0, 0, 0, 0, 0, 0 }, /* non-existent */
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/* PB0 */ { 0, 0, 0, 0, 0, 0 } /* non-existent */
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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 */ { 1, 1, 1, 0, 0, 0 }, /* SCC1 CTS# */
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/* PC28 */ { 0, 0, 0, 0, 0, 0 }, /* PC28 */
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/* PC27 */ { CONFIG_SYS_FCC3, 1, 0, 1, 0, 0 }, /* FCC3: TXD[0] */
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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, 0, 0, 0, 0, 0 }, /* PC23 */
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/* PC22 */ { 0, 0, 0, 0, 0, 0 }, /* PC22 */
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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 */ { CONFIG_SYS_FCC2, 1, 0, 0, 0, 0 }, /* RxClk (CLK13) */
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/* PC18 */ { CONFIG_SYS_FCC2, 1, 0, 0, 0, 0 }, /* TxClk (CLK14) */
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/* PC17 */ { CONFIG_SYS_FCC3, 1, 0, 0, 0, 0 }, /* RxClk (CLK15) */
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/* PC16 */ { CONFIG_SYS_FCC3, 1, 0, 0, 0, 0 }, /* TxClk (CLK16) */
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/* PC15 */ { 0, 0, 0, 0, 0, 0 }, /* PC15 */
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/* PC14 */ { 1, 1, 0, 0, 0, 0 }, /* SCC1 CD# */
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/* PC13 */ { 1, 1, 0, 0, 0, 0 }, /* SCC2 CTS# */
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/* PC12 */ { 1, 1, 0, 0, 0, 0 }, /* SCC2 CD# */
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/* PC11 */ { 0, 0, 0, 0, 0, 0 }, /* PC11 */
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/* PC10 */ { 1, 1, 0, 0, 0, 0 }, /* SCC3 CD# */
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/* PC9 */ { 0, 0, 0, 0, 0, 0 }, /* PC9 */
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/* PC8 */ { 1, 1, 1, 0, 0, 0 }, /* SCC3 CTS# */
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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 */ { 1, 1, 0, 0, 0, 0 }, /* SCC1 RXD */
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/* PD30 */ { 1, 1, 1, 1, 0, 1 }, /* SCC1 TXD */
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/* PD29 */ { 1, 1, 0, 1, 0, 0 }, /* SCC1 RTS# */
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/* PD28 */ { 1, 1, 0, 0, 0, 0 }, /* SCC2 RXD */
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/* PD27 */ { 1, 1, 0, 1, 0, 0 }, /* SCC2 TXD */
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/* PD26 */ { 1, 1, 0, 1, 0, 0 }, /* SCC2 RTS# */
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/* PD25 */ { 1, 1, 0, 0, 0, 0 }, /* SCC3 RXD */
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/* PD24 */ { 1, 1, 0, 1, 0, 0 }, /* SCC3 TXD */
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/* PD23 */ { 1, 1, 0, 1, 0, 0 }, /* SCC3 RTS# */
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/* PD22 */ { 0, 0, 0, 0, 0, 1 }, /* PD22 */
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/* PD21 */ { 0, 0, 0, 0, 0, 1 }, /* PD21 */
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/* PD20 */ { 0, 0, 0, 0, 0, 1 }, /* PD20 */
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/* PD19 */ { 0, 0, 0, 0, 0, 1 }, /* PD19 */
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/* PD18 */ { 0, 0, 0, 0, 0, 1 }, /* PD18 */
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/* PD17 */ { 0, 0, 0, 0, 0, 1 }, /* PD17 */
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/* PD16 */ { 0, 0, 0, 0, 0, 1 }, /* PD16 */
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/* PD15 */ { 1, 1, 1, 0, 1, 1 }, /* I2C SDA */
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/* PD14 */ { 1, 1, 1, 0, 1, 1 }, /* I2C SCL */
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/* PD13 */ { 0, 0, 0, 0, 0, 1 }, /* PD13 */
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/* PD12 */ { 0, 0, 0, 0, 0, 1 }, /* PD12 */
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/* PD11 */ { 0, 0, 0, 0, 0, 1 }, /* PD11 */
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/* PD10 */ { 0, 0, 0, 0, 0, 1 }, /* PD10 */
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/* PD9 */ { 1, 1, 0, 1, 0, 1 }, /* SMC1 TxD */
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/* PD8 */ { 1, 1, 0, 0, 0, 1 }, /* SMC1 RxD */
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/* PD7 */ { 1, 1, 0, 0, 0, 1 }, /* SMC1 SMSYN */
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/* PD6 */ { 0, 0, 0, 0, 0, 1 }, /* PD6 */
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/* PD5 */ { 0, 0, 0, 0, 0, 1 }, /* PD5 */
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/* PD4 */ { 0, 0, 0, 0, 0, 1 }, /* PD4 */
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/* PD3 */ { 0, 0, 0, 0, 0, 0 }, /* non-existent */
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/* PD2 */ { 0, 0, 0, 0, 0, 0 }, /* non-existent */
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/* PD1 */ { 0, 0, 0, 0, 0, 0 }, /* non-existent */
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/* PD0 */ { 0, 0, 0, 0, 0, 0 } /* non-existent */
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}
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};
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#ifdef CONFIG_PCI
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typedef struct pci_ic_s {
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unsigned long pci_int_stat;
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unsigned long pci_int_mask;
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}pci_ic_t;
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#endif
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int board_early_init_f (void)
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{
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vu_char *bcsr = (vu_char *)CONFIG_SYS_BCSR;
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bcsr[4] |= 0x30; /* Turn the LEDs off */
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#if defined(CONFIG_CONS_ON_SMC) || defined(CONFIG_KGDB_ON_SMC)
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bcsr[6] |= 0x10;
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#endif
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#if defined(CONFIG_CONS_ON_SCC) || defined(CONFIG_KGDB_ON_SCC)
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bcsr[7] |= 0x10;
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#endif
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#if CONFIG_SYS_FCC3
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bcsr[8] |= 0xC0;
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#endif /* CONFIG_SYS_FCC3 */
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#if CONFIG_SYS_FCC2
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bcsr[8] |= 0x30;
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#endif /* CONFIG_SYS_FCC2 */
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return 0;
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}
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phys_size_t initdram(int board_type)
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{
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/* Size in MB of SDRAM populated on board*/
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long int msize = 256;
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#ifndef CONFIG_SYS_RAMBOOT
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volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR;
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volatile memctl8260_t *memctl = &immap->im_memctl;
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uint psdmr = CONFIG_SYS_PSDMR;
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int i;
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unsigned char *ramptr1 = (unsigned char *)0x00000110;
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__maybe_unused unsigned char ramtmp;
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memctl->memc_mptpr = CONFIG_SYS_MPTPR;
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udelay(400);
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/* Initialise 60x bus SDRAM */
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memctl->memc_psrt = CONFIG_SYS_PSRT;
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memctl->memc_or1 = CONFIG_SYS_SDRAM_OR;
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memctl->memc_br1 = CONFIG_SYS_SDRAM_BR;
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memctl->memc_psdmr = psdmr;
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udelay(400);
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memctl->memc_psdmr = psdmr | PSDMR_OP_PREA; /* Precharge all banks */
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ramtmp = *ramptr1;
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memctl->memc_psdmr = psdmr | PSDMR_OP_CBRR; /* CBR refresh */
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for (i = 0; i < 8; i++) {
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memctl->memc_psdmr = psdmr | PSDMR_OP_CBRR; /* CBR refresh */
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}
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ramtmp = *ramptr1;
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memctl->memc_psdmr = psdmr | PSDMR_OP_MRW; /* Mode Register write */
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*ramptr1 = 0xFF;
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memctl->memc_psdmr = psdmr | PSDMR_RFEN; /* Refresh enable */
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#endif /* !CONFIG_SYS_RAMBOOT */
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/* Return total 60x bus SDRAM size */
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return msize * 1024 * 1024;
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}
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int checkboard(void)
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{
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vu_char *bcsr = (vu_char *)CONFIG_SYS_BCSR;
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puts("Board: ");
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switch (bcsr[0]) {
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case 0x0A:
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printf("EP82xxM 1.0 CPLD revision %d\n", bcsr[1]);
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break;
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default:
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printf("unknown: ID=%02X\n", bcsr[0]);
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}
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return 0;
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}
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#ifdef CONFIG_PCI
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struct pci_controller hose;
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extern void pci_mpc8250_init(struct pci_controller *);
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void pci_init_board(void)
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{
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pci_mpc8250_init(&hose);
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}
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#endif
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