#include <common.h>#include <mpc8xx.h>#include <pcmcia.h>#undef	CONFIG_PCMCIA#if	(CONFIG_COMMANDS & CFG_CMD_PCMCIA)#define	CONFIG_PCMCIA#endif#if	(CONFIG_COMMANDS & CFG_CMD_IDE) && defined(CONFIG_IDE_8xx_PCCARD)#define	CONFIG_PCMCIA#endif#ifdef	CONFIG_PCMCIA#define PCMCIA_BOARD_MSG "C2MON"static void cfg_ports (void){	volatile immap_t	*immap;	volatile cpm8xx_t	*cp;	ushort sreg;	immap = (immap_t *)CFG_IMMR;	cp    = (cpm8xx_t *)(&(((immap_t *)CFG_IMMR)->im_cpm));	/*	* Configure Port C for TPS2211 PC-Card Power-Interface Switch	*	* Switch off all voltages, assert shutdown	*/	sreg = immap->im_ioport.iop_pcdat;	sreg |=  (TPS2211_VPPD0 | TPS2211_VPPD1);	/* VAVPP => Hi-Z */	sreg &= ~(TPS2211_VCCD0 | TPS2211_VCCD1);	/* 3V and 5V off */	immap->im_ioport.iop_pcdat = sreg;	immap->im_ioport.iop_pcpar &= ~(TPS2211_OUTPUTS);	immap->im_ioport.iop_pcdir |=   TPS2211_OUTPUTS;	debug ("Set Port C: PAR:     %04x DIR:     %04x DAT:     %04x\n",	       immap->im_ioport.iop_pcpar,	       immap->im_ioport.iop_pcdir,	       immap->im_ioport.iop_pcdat);	/*	* Configure Port B for TPS2211 PC-Card Power-Interface Switch	*	* Over-Current Input only	*/	cp->cp_pbpar &= ~(TPS2211_INPUTS);	cp->cp_pbdir &= ~(TPS2211_INPUTS);	debug ("Set Port B: PAR: %08x DIR: %08x DAT: %08x\n",	       cp->cp_pbpar, cp->cp_pbdir, cp->cp_pbdat);}int pcmcia_hardware_enable(int slot){	volatile immap_t	*immap;	volatile cpm8xx_t	*cp;	volatile pcmconf8xx_t	*pcmp;	volatile sysconf8xx_t	*sysp;	uint reg, pipr, mask;	ushort sreg;	int i;	debug ("hardware_enable: " PCMCIA_BOARD_MSG " Slot %c\n", 'A'+slot);	udelay(10000);	immap = (immap_t *)CFG_IMMR;	sysp  = (sysconf8xx_t *)(&(((immap_t *)CFG_IMMR)->im_siu_conf));	pcmp  = (pcmconf8xx_t *)(&(((immap_t *)CFG_IMMR)->im_pcmcia));	cp    = (cpm8xx_t *)(&(((immap_t *)CFG_IMMR)->im_cpm));	/* Configure Ports for TPS2211A PC-Card Power-Interface Switch */	cfg_ports ();	/*	* Configure SIUMCR to enable PCMCIA port B	* (VFLS[0:1] are not used for debugging, we connect FRZ# instead)	*/	sysp->sc_siumcr &= ~SIUMCR_DBGC11;	/* set DBGC to 00 */	/* clear interrupt state, and disable interrupts */	pcmp->pcmc_pscr =  PCMCIA_MASK(_slot_);	pcmp->pcmc_per &= ~PCMCIA_MASK(_slot_);	/*	* Disable interrupts, DMA, and PCMCIA buffers	* (isolate the interface) and assert RESET signal	*/	debug ("Disable PCMCIA buffers and assert RESET\n");	reg  = 0;	reg |= __MY_PCMCIA_GCRX_CXRESET;	/* active high */	reg |= __MY_PCMCIA_GCRX_CXOE;		/* active low  */	PCMCIA_PGCRX(_slot_) = reg;	udelay(500);	/*	* Make sure there is a card in the slot, then configure the interface.	*/	udelay(10000);	debug ("[%d] %s: PIPR(%p)=0x%x\n",	       __LINE__,__FUNCTION__,	       &(pcmp->pcmc_pipr),pcmp->pcmc_pipr);	if (pcmp->pcmc_pipr & (0x18000000 >> (slot << 4))) {		printf ("   No Card found\n");		return (1);	}	/*	* Power On: Set VAVCC to 3.3V or 5V, set VAVPP to Hi-Z	*/	mask = PCMCIA_VS1(slot) | PCMCIA_VS2(slot);	pipr = pcmp->pcmc_pipr;	debug ("PIPR: 0x%x ==> VS1=o%s, VS2=o%s\n",	       pipr,	       (reg&PCMCIA_VS1(slot))?"n":"ff",	       (reg&PCMCIA_VS2(slot))?"n":"ff");	sreg = immap->im_ioport.iop_pcdat;	if ((pipr & mask) == mask) {		sreg |=  (TPS2211_VPPD0 | TPS2211_VPPD1 |	/* VAVPP => Hi-Z */				TPS2211_VCCD1);			/* 5V on	*/		sreg &= ~(TPS2211_VCCD0);			/* 3V off	*/		puts (" 5.0V card found: ");	} else {		sreg |=  (TPS2211_VPPD0 | TPS2211_VPPD1 |	/* VAVPP => Hi-Z */				TPS2211_VCCD0);			/* 3V on	*/		sreg &= ~(TPS2211_VCCD1);			/* 5V off	*/		puts (" 3.3V card found: ");	}	debug ("\nPC DAT: %04x -> 3.3V %s 5.0V %s\n",	       sreg,	       ( (sreg & TPS2211_VCCD0) && !(sreg & TPS2211_VCCD1)) ? "on" : "off",	       (!(sreg & TPS2211_VCCD0) &&  (sreg & TPS2211_VCCD1)) ? "on" : "off"	      );	immap->im_ioport.iop_pcdat = sreg;	/*  Wait 500 ms; use this to check for over-current */	for (i=0; i<5000; ++i) {		if ((cp->cp_pbdat & TPS2211_OC) == 0) {			printf ("   *** Overcurrent - Safety shutdown ***\n");			immap->im_ioport.iop_pcdat &= ~(TPS2211_VCCD0|TPS2211_VCCD1);			return (1);		}		udelay (100);	}	debug ("Enable PCMCIA buffers and stop RESET\n");	reg  =  PCMCIA_PGCRX(_slot_);	reg &= ~__MY_PCMCIA_GCRX_CXRESET;	/* active high */	reg &= ~__MY_PCMCIA_GCRX_CXOE;		/* active low  */	PCMCIA_PGCRX(_slot_) = reg;	udelay(250000);	/* some cards need >150 ms to come up :-( */	debug ("# hardware_enable done\n");	return (0);}#if (CONFIG_COMMANDS & CFG_CMD_PCMCIA)int pcmcia_hardware_disable(int slot){	volatile immap_t	*immap;	volatile cpm8xx_t	*cp;	volatile pcmconf8xx_t	*pcmp;	u_long reg;	debug ("hardware_disable: " PCMCIA_BOARD_MSG " Slot %c\n", 'A'+slot);	immap = (immap_t *)CFG_IMMR;	pcmp  = (pcmconf8xx_t *)(&(((immap_t *)CFG_IMMR)->im_pcmcia));	/* Configure PCMCIA General Control Register */	debug ("Disable PCMCIA buffers and assert RESET\n");	reg  = 0;	reg |= __MY_PCMCIA_GCRX_CXRESET;	/* active high */	reg |= __MY_PCMCIA_GCRX_CXOE;		/* active low  */	PCMCIA_PGCRX(_slot_) = reg;	/* ALl voltages off / Hi-Z */	immap->im_ioport.iop_pcdat |= (TPS2211_VPPD0 | TPS2211_VPPD1 |			TPS2211_VCCD0 | TPS2211_VCCD1 );	udelay(10000);	return (0);}#endif	/* CFG_CMD_PCMCIA */int pcmcia_voltage_set(int slot, int vcc, int vpp){	volatile immap_t	*immap;	volatile cpm8xx_t	*cp;	volatile pcmconf8xx_t	*pcmp;	u_long reg;	ushort sreg;	debug ("voltage_set: "			PCMCIA_BOARD_MSG			" Slot %c, Vcc=%d.%d, Vpp=%d.%d\n",	'A'+slot, vcc/10, vcc%10, vpp/10, vcc%10);	immap = (immap_t *)CFG_IMMR;	cp    = (cpm8xx_t *)(&(((immap_t *)CFG_IMMR)->im_cpm));	pcmp  = (pcmconf8xx_t *)(&(((immap_t *)CFG_IMMR)->im_pcmcia));	/*	* Disable PCMCIA buffers (isolate the interface)	* and assert RESET signal	*/	debug ("Disable PCMCIA buffers and assert RESET\n");	reg  = PCMCIA_PGCRX(_slot_);	reg |= __MY_PCMCIA_GCRX_CXRESET;	/* active high */	reg |= __MY_PCMCIA_GCRX_CXOE;		/* active low  */	PCMCIA_PGCRX(_slot_) = reg;	udelay(500);	/*	* Configure Port C pins for	* 5 Volts Enable and 3 Volts enable,	* Turn all power pins to Hi-Z	*/	debug ("PCMCIA power OFF\n");	cfg_ports ();	/* Enables switch, but all in Hi-Z */	sreg  = immap->im_ioport.iop_pcdat;	sreg |= TPS2211_VPPD0 | TPS2211_VPPD1;		/* VAVPP always Hi-Z */	switch(vcc) {		case  0: 			break;	/* Switch off		*/		case 33: sreg |=  TPS2211_VCCD0;	/* Switch on 3.3V	*/		sreg &= ~TPS2211_VCCD1;		break;		case 50: sreg &= ~TPS2211_VCCD0;	/* Switch on 5.0V	*/		sreg |=  TPS2211_VCCD1;		break;		default: 			goto done;	}	/* Checking supported voltages */	debug ("PIPR: 0x%x --> %s\n",	       pcmp->pcmc_pipr,	       (pcmp->pcmc_pipr & 0x00008000) ? "only 5 V" : "can do 3.3V");	immap->im_ioport.iop_pcdat = sreg;#ifdef DEBUG{	char *s;	if ((sreg & TPS2211_VCCD0) && !(sreg & TPS2211_VCCD1)) {		s = "at 3.3V";	} else if (!(sreg & TPS2211_VCCD0) &&  (sreg & TPS2211_VCCD1)) {		s = "at 5.0V";	} else {		s = "down";	}	printf ("PCMCIA powered %s\n", s);}#endifdone:	debug ("Enable PCMCIA buffers and stop RESET\n");	reg  =  PCMCIA_PGCRX(_slot_);	reg &= ~__MY_PCMCIA_GCRX_CXRESET;	/* active high */	reg &= ~__MY_PCMCIA_GCRX_CXOE;		/* active low  */	PCMCIA_PGCRX(_slot_) = reg;	udelay(500);	debug ("voltage_set: " PCMCIA_BOARD_MSG " Slot %c, DONE\n",	       slot+'A');	return (0);}#endif	/* CONFIG_PCMCIA */