#include <common.h>#include <mpc8xx.h>#include <pcmcia.h>#include <i2c.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 "LWMON"/* #define's for MAX1604 Power Switch */#define MAX1604_OP_SUS		0x80#define MAX1604_VCCBON		0x40#define MAX1604_VCC_35		0x20#define MAX1604_VCCBHIZ		0x10#define MAX1604_VPPBON		0x08#define MAX1604_VPPBPBPGM	0x04#define MAX1604_VPPBHIZ		0x02/* reserved			0x01	*/int pcmcia_hardware_enable(int slot){	volatile immap_t	*immap;	volatile cpm8xx_t	*cp;	volatile pcmconf8xx_t	*pcmp;	volatile sysconf8xx_t	*sysp;	uint reg, mask;	uchar val;	debug ("hardware_enable: " PCMCIA_BOARD_MSG " Slot %c\n", 'A'+slot);	/* Switch on PCMCIA port in PIC register 0x60 */	reg = pic_read  (0x60);	debug ("[%d] PIC read: reg_60 = 0x%02x\n", __LINE__, reg);	reg &= ~0x10;	/* reg |= 0x08; Vpp not needed */	pic_write (0x60, reg);#ifdef DEBUG	reg = pic_read  (0x60);	printf ("[%d] PIC read: reg_60 = 0x%02x\n", __LINE__, reg);#endif	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 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.	 */	mask = PCMCIA_VS1(slot) | PCMCIA_VS2(slot);	reg  = pcmp->pcmc_pipr;	debug ("PIPR: 0x%x ==> VS1=o%s, VS2=o%s\n",		reg,		(reg&PCMCIA_VS1(slot))?"n":"ff",		(reg&PCMCIA_VS2(slot))?"n":"ff");	if ((reg & mask) == mask) {		val = 0;		/* VCCB3/5 = 0 ==> use Vx = 5.0 V */		puts (" 5.0V card found: ");	} else {		val = MAX1604_VCC_35;	/* VCCB3/5 = 1 ==> use Vy = 3.3 V */		puts (" 3.3V card found: ");	}	/*  switch VCC on */	val |= MAX1604_OP_SUS | MAX1604_VCCBON;	i2c_init  (CFG_I2C_SPEED, CFG_I2C_SLAVE);	i2c_write (CFG_I2C_POWER_A_ADDR, 0, 0, &val, 1);	udelay(500000);	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 pcmconf8xx_t	*pcmp;	u_long reg;	uchar val;	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));	/* remove all power, put output in high impedance state */	val  = MAX1604_VCCBHIZ | MAX1604_VPPBHIZ;	i2c_init  (CFG_I2C_SPEED, CFG_I2C_SLAVE);	i2c_write (CFG_I2C_POWER_A_ADDR, 0, 0, &val, 1);	/* 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;	/* Switch off PCMCIA port in PIC register 0x60 */	reg = pic_read  (0x60);	debug ("[%d] PIC read: reg_60 = 0x%02x\n", __LINE__, reg);	reg |=  0x10;	reg &= ~0x08;	pic_write (0x60, reg);#ifdef DEBUG	reg = pic_read  (0x60);	printf ("[%d] PIC read: reg_60 = 0x%02x\n", __LINE__, reg);#endif	udelay(10000);	return (0);}#endif	/* CFG_CMD_PCMCIA */int pcmcia_voltage_set(int slot, int vcc, int vpp){	volatile immap_t	*immap;	volatile pcmconf8xx_t	*pcmp;	u_long reg;	uchar val;	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;	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);	/*	 * Turn off all power (switch to high impedance)	 */	debug ("PCMCIA power OFF\n");	val  = MAX1604_VCCBHIZ | MAX1604_VPPBHIZ;	i2c_init  (CFG_I2C_SPEED, CFG_I2C_SLAVE);	i2c_write (CFG_I2C_POWER_A_ADDR, 0, 0, &val, 1);	val = 0;	switch(vcc) {	case  0: 			break;	case 33: val = MAX1604_VCC_35;	break;	case 50: 			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");	i2c_write (CFG_I2C_POWER_A_ADDR, 0, 0, &val, 1);	if (val) {		debug ("PCMCIA powered at %sV\n",			(val & MAX1604_VCC_35) ? "3.3" : "5.0");	} else {		debug ("PCMCIA powered down\n");	}done:	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 */