mirror of
https://github.com/AsahiLinux/u-boot
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428 lines
15 KiB
C
428 lines
15 KiB
C
/*
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* Copyright 2004, 2011 Freescale Semiconductor.
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*
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* SPDX-License-Identifier: GPL-2.0+
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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/mmu.h>
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#include <asm/immap_85xx.h>
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#include <asm/fsl_ddr_sdram.h>
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#include <ioports.h>
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#include <spd_sdram.h>
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#include <libfdt.h>
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#include <fdt_support.h>
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#include "../common/cadmus.h"
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#include "../common/eeprom.h"
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#include "../common/via.h"
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#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
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extern void ddr_enable_ecc(unsigned int dram_size);
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#endif
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void local_bus_init(void);
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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 */ { 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 }, /* 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 */ { 1, 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 */ { 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, 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 */ { 0, 1, 0, 0, 0, 0 }, /* SCC1 EN RXCLK */
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/* PC20 */ { 0, 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 */ { 0, 0, 0, 1, 0, 0 }, /* PC17 */
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/* PC16 */ { 0, 1, 0, 0, 0, 0 }, /* FCC Tx Clock (CLK16) */
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/* PC15 */ { 1, 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, 0, 0, 1, 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 */ { 1, 0, 0, 1, 0, 0 }, /* FETHMDC */
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/* PC9 */ { 1, 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 */ { 0, 1, 0, 0, 0, 0 }, /* PD28 */
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/* PD27 */ { 0, 1, 1, 1, 0, 0 }, /* PD27 */
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/* PD26 */ { 0, 0, 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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int checkboard (void)
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{
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volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
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char buf[32];
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/* PCI slot in USER bits CSR[6:7] by convention. */
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uint pci_slot = get_pci_slot ();
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uint pci_dual = get_pci_dual (); /* PCI DUAL in CM_PCI[3] */
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uint pci1_32 = gur->pordevsr & 0x10000; /* PORDEVSR[15] */
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uint pci1_clk_sel = gur->porpllsr & 0x8000; /* PORPLLSR[16] */
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uint pci2_clk_sel = gur->porpllsr & 0x4000; /* PORPLLSR[17] */
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uint pci1_speed = get_clock_freq (); /* PCI PSPEED in [4:5] */
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uint cpu_board_rev = get_cpu_board_revision ();
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printf ("Board: CDS Version 0x%02x, PCI Slot %d\n",
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get_board_version (), pci_slot);
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printf ("CPU Board Revision %d.%d (0x%04x)\n",
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MPC85XX_CPU_BOARD_MAJOR (cpu_board_rev),
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MPC85XX_CPU_BOARD_MINOR (cpu_board_rev), cpu_board_rev);
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printf("PCI1: %d bit, %s MHz, %s\n",
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(pci1_32) ? 32 : 64,
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strmhz(buf, pci1_speed),
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pci1_clk_sel ? "sync" : "async");
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if (pci_dual) {
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printf("PCI2: 32 bit, 66 MHz, %s\n",
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pci2_clk_sel ? "sync" : "async");
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} else {
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printf("PCI2: disabled\n");
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}
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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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/*
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* Initialize Local Bus
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*/
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void
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local_bus_init(void)
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{
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volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
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volatile fsl_lbc_t *lbc = LBC_BASE_ADDR;
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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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uint temp_lbcdll;
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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 & LCRR_CLKDIV;
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lbc_hz = sysinfo.freq_systembus / 1000000 / clkdiv;
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if (lbc_hz < 66) {
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lbc->lcrr |= LCRR_DBYP; /* DLL Bypass */
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} else if (lbc_hz >= 133) {
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lbc->lcrr &= (~LCRR_DBYP); /* DLL Enabled */
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} else {
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lbc->lcrr &= (~LCRR_DBYP); /* 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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/*
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* Initialize SDRAM memory on the Local Bus.
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*/
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void lbc_sdram_init(void)
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{
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#if defined(CONFIG_SYS_OR2_PRELIM) && defined(CONFIG_SYS_BR2_PRELIM)
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uint idx;
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volatile fsl_lbc_t *lbc = LBC_BASE_ADDR;
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uint *sdram_addr = (uint *)CONFIG_SYS_LBC_SDRAM_BASE;
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uint cpu_board_rev;
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uint lsdmr_common;
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puts("LBC SDRAM: ");
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print_size(CONFIG_SYS_LBC_SDRAM_SIZE * 1024 * 1024,
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"\n ");
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/*
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* Setup SDRAM Base and Option Registers
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*/
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set_lbc_or(2, CONFIG_SYS_OR2_PRELIM);
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set_lbc_br(2, CONFIG_SYS_BR2_PRELIM);
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lbc->lbcr = CONFIG_SYS_LBC_LBCR;
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asm("msync");
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lbc->lsrt = CONFIG_SYS_LBC_LSRT;
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lbc->mrtpr = CONFIG_SYS_LBC_MRTPR;
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asm("msync");
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/*
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* Determine which address lines to use baed on CPU board rev.
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*/
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cpu_board_rev = get_cpu_board_revision();
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lsdmr_common = CONFIG_SYS_LBC_LSDMR_COMMON;
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if (cpu_board_rev == MPC85XX_CPU_BOARD_REV_1_0) {
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lsdmr_common |= LSDMR_BSMA1617;
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} else if (cpu_board_rev == MPC85XX_CPU_BOARD_REV_1_1) {
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lsdmr_common |= LSDMR_BSMA1516;
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} else {
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/*
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* Assume something unable to identify itself is
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* really old, and likely has lines 16/17 mapped.
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*/
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lsdmr_common |= LSDMR_BSMA1617;
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}
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/*
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* Issue PRECHARGE ALL command.
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*/
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lbc->lsdmr = lsdmr_common | LSDMR_OP_PCHALL;
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asm("sync;msync");
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*sdram_addr = 0xff;
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ppcDcbf((unsigned long) sdram_addr);
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udelay(100);
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/*
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* Issue 8 AUTO REFRESH commands.
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*/
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for (idx = 0; idx < 8; idx++) {
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lbc->lsdmr = lsdmr_common | LSDMR_OP_ARFRSH;
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asm("sync;msync");
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*sdram_addr = 0xff;
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ppcDcbf((unsigned long) sdram_addr);
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udelay(100);
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}
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/*
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* Issue 8 MODE-set command.
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*/
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lbc->lsdmr = lsdmr_common | LSDMR_OP_MRW;
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asm("sync;msync");
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*sdram_addr = 0xff;
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ppcDcbf((unsigned long) sdram_addr);
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udelay(100);
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/*
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* Issue NORMAL OP command.
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*/
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lbc->lsdmr = lsdmr_common | LSDMR_OP_NORMAL;
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asm("sync;msync");
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*sdram_addr = 0xff;
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ppcDcbf((unsigned long) sdram_addr);
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udelay(200); /* Overkill. Must wait > 200 bus cycles */
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#endif /* enable SDRAM init */
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}
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#ifdef CONFIG_PCI
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/* For some reason the Tundra PCI bridge shows up on itself as a
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* different device. Work around that by refusing to configure it
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*/
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void dummy_func(struct pci_controller* hose, pci_dev_t dev, struct pci_config_table *tab) { }
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static struct pci_config_table pci_mpc85xxcds_config_table[] = {
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{0x10e3, 0x0513, PCI_ANY_ID, 1, 3, PCI_ANY_ID, dummy_func, {0,0,0}},
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{0x1106, 0x0686, PCI_ANY_ID, 1, VIA_ID, 0, mpc85xx_config_via, {0,0,0}},
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{0x1106, 0x0571, PCI_ANY_ID, 1, VIA_ID, 1,
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mpc85xx_config_via_usbide, {0,0,0}},
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{0x1105, 0x3038, PCI_ANY_ID, 1, VIA_ID, 2,
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mpc85xx_config_via_usb, {0,0,0}},
|
|
{0x1106, 0x3038, PCI_ANY_ID, 1, VIA_ID, 3,
|
|
mpc85xx_config_via_usb2, {0,0,0}},
|
|
{0x1106, 0x3058, PCI_ANY_ID, 1, VIA_ID, 5,
|
|
mpc85xx_config_via_power, {0,0,0}},
|
|
{0x1106, 0x3068, PCI_ANY_ID, 1, VIA_ID, 6,
|
|
mpc85xx_config_via_ac97, {0,0,0}},
|
|
{},
|
|
};
|
|
|
|
|
|
static struct pci_controller hose[] = {
|
|
{
|
|
config_table: pci_mpc85xxcds_config_table,
|
|
},
|
|
#ifdef CONFIG_MPC85XX_PCI2
|
|
{},
|
|
#endif
|
|
};
|
|
|
|
#endif
|
|
|
|
void
|
|
pci_init_board(void)
|
|
{
|
|
#ifdef CONFIG_PCI
|
|
pci_mpc85xx_init(hose);
|
|
#endif
|
|
}
|
|
|
|
#if defined(CONFIG_OF_BOARD_SETUP)
|
|
void
|
|
ft_pci_setup(void *blob, bd_t *bd)
|
|
{
|
|
int node, tmp[2];
|
|
const char *path;
|
|
|
|
node = fdt_path_offset(blob, "/aliases");
|
|
tmp[0] = 0;
|
|
if (node >= 0) {
|
|
#ifdef CONFIG_PCI1
|
|
path = fdt_getprop(blob, node, "pci0", NULL);
|
|
if (path) {
|
|
tmp[1] = hose[0].last_busno - hose[0].first_busno;
|
|
do_fixup_by_path(blob, path, "bus-range", &tmp, 8, 1);
|
|
}
|
|
#endif
|
|
#ifdef CONFIG_MPC85XX_PCI2
|
|
path = fdt_getprop(blob, node, "pci1", NULL);
|
|
if (path) {
|
|
tmp[1] = hose[1].last_busno - hose[1].first_busno;
|
|
do_fixup_by_path(blob, path, "bus-range", &tmp, 8, 1);
|
|
}
|
|
#endif
|
|
}
|
|
}
|
|
#endif
|