[people/ms/u-boot.git] / drivers / pcmcia / tqm8xx_pcmcia.c

/* -------------------------------------------------------------------- */
/* TQM8xxL Boards by TQ Components					*/
/* SC8xx   Boards by SinoVee Microsystems				*/
/* -------------------------------------------------------------------- */
#include <common.h>
#ifdef CONFIG_8xx
#include <mpc8xx.h>
#endif
#include <pcmcia.h>

#undef	CONFIG_PCMCIA

#if defined(CONFIG_CMD_PCMCIA)
#define	CONFIG_PCMCIA
#endif

#if defined(CONFIG_CMD_IDE) && defined(CONFIG_IDE_8xx_PCCARD)
#define	CONFIG_PCMCIA
#endif

#if	defined(CONFIG_PCMCIA)	\
	&& (defined(CONFIG_TQM8xxL) || defined(CONFIG_SVM_SC8xx))

#if	defined(CONFIG_VIRTLAB2)
#define	PCMCIA_BOARD_MSG	"Virtlab2"
#elif	defined(CONFIG_TQM8xxL)
#define	PCMCIA_BOARD_MSG	"TQM8xxL"
#elif	defined(CONFIG_SVM_SC8xx)
#define	PCMCIA_BOARD_MSG	"SC8xx"
#endif

#if	defined(CONFIG_NSCU)

#define	power_config(slot)	do {} while (0)
#define	power_off(slot)		do {} while (0)
#define	power_on_5_0(slot)	do {} while (0)
#define	power_on_3_3(slot)	do {} while (0)

#elif	defined(CONFIG_HMI10)

static inline void power_config(int slot)
{
	volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR;
	/*
	 * Configure Port B  pins for
	 * 5 Volts Enable and 3 Volts enable
	*/
	immap->im_cpm.cp_pbpar &= ~(0x00000300);
}

static inline void power_off(int slot)
{
	volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR;
	/* remove all power */
	immap->im_cpm.cp_pbdat |= 0x00000300;
}

static inline void power_on_5_0(int slot)
{
	volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR;
	immap->im_cpm.cp_pbdat &= ~(0x0000100);
	immap->im_cpm.cp_pbdir |= 0x00000300;
}

static inline void power_on_3_3(int slot)
{
	volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR;
	immap->im_cpm.cp_pbdat &= ~(0x0000200);
	immap->im_cpm.cp_pbdir |= 0x00000300;
}

#elif	defined(CONFIG_VIRTLAB2)

#define	power_config(slot)	do {} while (0)
static inline void power_off(int slot)
{
	volatile unsigned char	*powerctl =
			(volatile unsigned char *)PCMCIA_CTRL;
	*powerctl = 0;
}

static inline void power_on_5_0(int slot)
{
	volatile unsigned char	*powerctl =
			(volatile unsigned char *)PCMCIA_CTRL;
			*powerctl = 2;	/* Enable 5V Vccout */
}

static inline void power_on_3_3(int slot)
{
	volatile unsigned char	*powerctl =
			(volatile unsigned char *)PCMCIA_CTRL;
			*powerctl = 1;	/* Enable 3.3V Vccout */
}

#else

static inline void power_config(int slot)
{
	volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR;
	/*
	* Configure Port C pins for
	* 5 Volts Enable and 3 Volts enable
	*/
	immap->im_ioport.iop_pcpar &= ~(0x0002 | 0x0004);
	immap->im_ioport.iop_pcso  &= ~(0x0002 | 0x0004);
}

static inline void power_off(int slot)
{
	volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR;
	immap->im_ioport.iop_pcdat &= ~(0x0002 | 0x0004);
}

static inline void power_on_5_0(int slot)
{
	volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR;
	immap->im_ioport.iop_pcdat |= 0x0004;
	immap->im_ioport.iop_pcdir |= (0x0002 | 0x0004);
}

static inline void power_on_3_3(int slot)
{
	volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR;
	immap->im_ioport.iop_pcdat |= 0x0002;
	immap->im_ioport.iop_pcdir |= (0x0002 | 0x0004);
}

#endif

#ifdef	CONFIG_HMI10
static inline int check_card_is_absent(int slot)
{
	volatile pcmconf8xx_t *pcmp =
		(pcmconf8xx_t *)(&(((immap_t *)CONFIG_SYS_IMMR)->im_pcmcia));
	return pcmp->pcmc_pipr & (0x10000000 >> (slot << 4));
}
#else
static inline int check_card_is_absent(int slot)
{
	volatile pcmconf8xx_t *pcmp =
		(pcmconf8xx_t *)(&(((immap_t *)CONFIG_SYS_IMMR)->im_pcmcia));
	return pcmp->pcmc_pipr & (0x18000000 >> (slot << 4));
}
#endif

#ifdef	NSCU_OE_INV
#define	NSCU_GCRX_CXOE	0
#else
#define	NSCU_GCRX_CXOE	__MY_PCMCIA_GCRX_CXOE
#endif

int pcmcia_hardware_enable(int slot)
{
	volatile pcmconf8xx_t *pcmp =
		(pcmconf8xx_t *)(&(((immap_t *)CONFIG_SYS_IMMR)->im_pcmcia));
	volatile sysconf8xx_t *sysp =
		(sysconf8xx_t *)(&(((immap_t *)CONFIG_SYS_IMMR)->im_siu_conf));
	uint reg, mask;

	debug ("hardware_enable: " PCMCIA_BOARD_MSG " Slot %c\n", 'A'+slot);

	udelay(10000);

	/*
	* 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 |= NSCU_GCRX_CXOE;

	PCMCIA_PGCRX(slot) = reg;
	udelay(500);

	power_config(slot);
	power_off(slot);

	/*
	 * 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 (check_card_is_absent(slot)) {
		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) {
		power_on_5_0(slot);
		puts (" 5.0V card found: ");
	} else {
		power_on_3_3(slot);
		puts (" 3.3V card found: ");
	}

#if 0
	/*  VCC switch error flag, PCMCIA slot INPACK_ pin */
	cp->cp_pbdir &= ~(0x0020 | 0x0010);
	cp->cp_pbpar &= ~(0x0020 | 0x0010);
	udelay(500000);
#endif

	udelay(1000);
	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  */
	reg &= ~NSCU_GCRX_CXOE;

	PCMCIA_PGCRX(slot) = reg;

	udelay(250000);	/* some cards need >150 ms to come up :-( */

	debug ("# hardware_enable done\n");

	return (0);
}


#if defined(CONFIG_CMD_PCMCIA)
int pcmcia_hardware_disable(int slot)
{
	u_long reg;

	debug ("hardware_disable: " PCMCIA_BOARD_MSG " Slot %c\n", 'A'+slot);


	/* remove all power */
	power_off(slot);

	debug ("Disable PCMCIA buffers and assert RESET\n");
	reg  = 0;
	reg |= __MY_PCMCIA_GCRX_CXRESET;	/* active high */
	reg |= NSCU_GCRX_CXOE;			/* active low  */

	PCMCIA_PGCRX(slot) = reg;

	udelay(10000);

	return (0);
}
#endif

int pcmcia_voltage_set(int slot, int vcc, int vpp)
{
#ifndef CONFIG_NSCU
	u_long reg;
# ifdef DEBUG
	volatile pcmconf8xx_t *pcmp =
		(pcmconf8xx_t *)(&(((immap_t *)CONFIG_SYS_IMMR)->im_pcmcia));
# endif

	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);

	/*
	* 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  */
	reg |= NSCU_GCRX_CXOE;			/* active low  */

	PCMCIA_PGCRX(slot) = reg;
	udelay(500);

	debug ("PCMCIA power OFF\n");
	power_config(slot);
	power_off(slot);

	switch(vcc) {
		case  0:			break;
		case 33: power_on_3_3(slot);	break;
		case 50: power_on_5_0(slot);	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");

	if (vcc)
		debug("PCMCIA powered at %sV\n", (vcc == 50) ? "5.0" : "3.3");
	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  */
	reg &= ~NSCU_GCRX_CXOE;			/* active low  */

	PCMCIA_PGCRX(slot) = reg;
	udelay(500);

	debug("voltage_set: " PCMCIA_BOARD_MSG " Slot %c, DONE\n", slot+'A');
#endif	/* CONFIG_NSCU */
	return (0);
}

#endif	/* CONFIG_PCMCIA && (CONFIG_TQM8xxL || CONFIG_SVM_SC8xx) */
Commit	Line	Data
9d407995 WD	1	/* -------------------------------------------------------------------- */
	2	/* TQM8xxL Boards by TQ Components */
	3	/* SC8xx Boards by SinoVee Microsystems */
	4	/* -------------------------------------------------------------------- */
	5	#include <common.h>
966083e9	6	#ifdef CONFIG_8xx
9d407995	7	#include <mpc8xx.h>
966083e9	8	#endif
9d407995 WD	9	#include <pcmcia.h>
	10
	11	#undef CONFIG_PCMCIA
	12
cb51c0bf	13	#if defined(CONFIG_CMD_PCMCIA)
9d407995 WD	14	#define CONFIG_PCMCIA
	15	#endif
	16
cb51c0bf	17	#if defined(CONFIG_CMD_IDE) && defined(CONFIG_IDE_8xx_PCCARD)
9d407995 WD	18	#define CONFIG_PCMCIA
	19	#endif
	20
	21	#if defined(CONFIG_PCMCIA) \
	22	&& (defined(CONFIG_TQM8xxL) \|\| defined(CONFIG_SVM_SC8xx))
	23
	24	#if defined(CONFIG_VIRTLAB2)
	25	#define PCMCIA_BOARD_MSG "Virtlab2"
	26	#elif defined(CONFIG_TQM8xxL)
	27	#define PCMCIA_BOARD_MSG "TQM8xxL"
	28	#elif defined(CONFIG_SVM_SC8xx)
	29	#define PCMCIA_BOARD_MSG "SC8xx"
	30	#endif
	31
	32	#if defined(CONFIG_NSCU)
	33
	34	#define power_config(slot) do {} while (0)
	35	#define power_off(slot) do {} while (0)
	36	#define power_on_5_0(slot) do {} while (0)
	37	#define power_on_3_3(slot) do {} while (0)
	38
	39	#elif defined(CONFIG_HMI10)
	40
	41	static inline void power_config(int slot)
	42	{
6d0f6bcf	43	volatile immap_t immap = (immap_t )CONFIG_SYS_IMMR;
9d407995 WD	44	/*
	45	* Configure Port B pins for
	46	* 5 Volts Enable and 3 Volts enable
	47	*/
	48	immap->im_cpm.cp_pbpar &= ~(0x00000300);
	49	}
	50
	51	static inline void power_off(int slot)
	52	{
6d0f6bcf	53	volatile immap_t immap = (immap_t )CONFIG_SYS_IMMR;
9d407995 WD	54	/* remove all power */
	55	immap->im_cpm.cp_pbdat \|= 0x00000300;
	56	}
	57
	58	static inline void power_on_5_0(int slot)
	59	{
6d0f6bcf	60	volatile immap_t immap = (immap_t )CONFIG_SYS_IMMR;
9d407995 WD	61	immap->im_cpm.cp_pbdat &= ~(0x0000100);
	62	immap->im_cpm.cp_pbdir \|= 0x00000300;
	63	}
	64
	65	static inline void power_on_3_3(int slot)
	66	{
6d0f6bcf	67	volatile immap_t immap = (immap_t )CONFIG_SYS_IMMR;
9d407995 WD	68	immap->im_cpm.cp_pbdat &= ~(0x0000200);
	69	immap->im_cpm.cp_pbdir \|= 0x00000300;
	70	}
	71
	72	#elif defined(CONFIG_VIRTLAB2)
	73
	74	#define power_config(slot) do {} while (0)
	75	static inline void power_off(int slot)
	76	{
	77	volatile unsigned char *powerctl =
	78	(volatile unsigned char *)PCMCIA_CTRL;
	79	*powerctl = 0;
	80	}
	81
	82	static inline void power_on_5_0(int slot)
	83	{
	84	volatile unsigned char *powerctl =
	85	(volatile unsigned char *)PCMCIA_CTRL;
	86	powerctl = 2; / Enable 5V Vccout */
	87	}
	88
	89	static inline void power_on_3_3(int slot)
	90	{
	91	volatile unsigned char *powerctl =
	92	(volatile unsigned char *)PCMCIA_CTRL;
	93	powerctl = 1; / Enable 3.3V Vccout */
	94	}
	95
	96	#else
	97
	98	static inline void power_config(int slot)
	99	{
6d0f6bcf	100	volatile immap_t immap = (immap_t )CONFIG_SYS_IMMR;
9d407995 WD	101	/*
	102	* Configure Port C pins for
	103	* 5 Volts Enable and 3 Volts enable
	104	*/
	105	immap->im_ioport.iop_pcpar &= ~(0x0002 \| 0x0004);
	106	immap->im_ioport.iop_pcso &= ~(0x0002 \| 0x0004);
	107	}
	108
	109	static inline void power_off(int slot)
	110	{
6d0f6bcf	111	volatile immap_t immap = (immap_t )CONFIG_SYS_IMMR;
9d407995 WD	112	immap->im_ioport.iop_pcdat &= ~(0x0002 \| 0x0004);
	113	}
	114
	115	static inline void power_on_5_0(int slot)
	116	{
6d0f6bcf	117	volatile immap_t immap = (immap_t )CONFIG_SYS_IMMR;
9d407995 WD	118	immap->im_ioport.iop_pcdat \|= 0x0004;
	119	immap->im_ioport.iop_pcdir \|= (0x0002 \| 0x0004);
	120	}
	121
	122	static inline void power_on_3_3(int slot)
	123	{
6d0f6bcf	124	volatile immap_t immap = (immap_t )CONFIG_SYS_IMMR;
9d407995 WD	125	immap->im_ioport.iop_pcdat \|= 0x0002;
	126	immap->im_ioport.iop_pcdir \|= (0x0002 \| 0x0004);
	127	}
	128
	129	#endif
	130
	131	#ifdef CONFIG_HMI10
	132	static inline int check_card_is_absent(int slot)
	133	{
	134	volatile pcmconf8xx_t *pcmp =
6d0f6bcf	135	(pcmconf8xx_t )(&(((immap_t )CONFIG_SYS_IMMR)->im_pcmcia));
9d407995 WD	136	return pcmp->pcmc_pipr & (0x10000000 >> (slot << 4));
	137	}
	138	#else
	139	static inline int check_card_is_absent(int slot)
	140	{
	141	volatile pcmconf8xx_t *pcmp =
6d0f6bcf	142	(pcmconf8xx_t )(&(((immap_t )CONFIG_SYS_IMMR)->im_pcmcia));
9d407995 WD	143	return pcmp->pcmc_pipr & (0x18000000 >> (slot << 4));
	144	}
	145	#endif
	146
	147	#ifdef NSCU_OE_INV
	148	#define NSCU_GCRX_CXOE 0
	149	#else
	150	#define NSCU_GCRX_CXOE __MY_PCMCIA_GCRX_CXOE
	151	#endif
	152
	153	int pcmcia_hardware_enable(int slot)
	154	{
	155	volatile pcmconf8xx_t *pcmp =
6d0f6bcf	156	(pcmconf8xx_t )(&(((immap_t )CONFIG_SYS_IMMR)->im_pcmcia));
9d407995	157	volatile sysconf8xx_t *sysp =
6d0f6bcf	158	(sysconf8xx_t )(&(((immap_t )CONFIG_SYS_IMMR)->im_siu_conf));
9d407995 WD	159	uint reg, mask;
	160
	161	debug ("hardware_enable: " PCMCIA_BOARD_MSG " Slot %c\n", 'A'+slot);
	162
	163	udelay(10000);
	164
	165	/*
	166	* Configure SIUMCR to enable PCMCIA port B
	167	* (VFLS[0:1] are not used for debugging, we connect FRZ# instead)
	168	*/
	169	sysp->sc_siumcr &= ~SIUMCR_DBGC11; /* set DBGC to 00 */
	170
	171	/* clear interrupt state, and disable interrupts */
	172	pcmp->pcmc_pscr = PCMCIA_MASK(slot);
	173	pcmp->pcmc_per &= ~PCMCIA_MASK(slot);
	174
	175	/*
	176	* Disable interrupts, DMA, and PCMCIA buffers
	177	* (isolate the interface) and assert RESET signal
	178	*/
	179	debug ("Disable PCMCIA buffers and assert RESET\n");
	180	reg = 0;
	181	reg \|= __MY_PCMCIA_GCRX_CXRESET; /* active high */
	182	reg \|= NSCU_GCRX_CXOE;
	183
	184	PCMCIA_PGCRX(slot) = reg;
	185	udelay(500);
	186
	187	power_config(slot);
	188	power_off(slot);
	189
	190	/*
	191	* Make sure there is a card in the slot, then configure the interface.
	192	*/
	193	udelay(10000);
	194	debug ("[%d] %s: PIPR(%p)=0x%x\n", __LINE__,__FUNCTION__,
	195	&(pcmp->pcmc_pipr),pcmp->pcmc_pipr);
b87dfd28	196
9d407995 WD	197	if (check_card_is_absent(slot)) {
	198	printf (" No Card found\n");
	199	return (1);
	200	}
	201
	202	/*
	203	* Power On.
	204	*/
	205	mask = PCMCIA_VS1(slot) \| PCMCIA_VS2(slot);
	206	reg = pcmp->pcmc_pipr;
	207	debug ("PIPR: 0x%x ==> VS1=o%s, VS2=o%s\n",
	208	reg,
	209	(reg&PCMCIA_VS1(slot))?"n":"ff",
	210	(reg&PCMCIA_VS2(slot))?"n":"ff");
b87dfd28	211
9d407995 WD	212	if ((reg & mask) == mask) {
	213	power_on_5_0(slot);
	214	puts (" 5.0V card found: ");
	215	} else {
	216	power_on_3_3(slot);
	217	puts (" 3.3V card found: ");
	218	}
	219
	220	#if 0
	221	/* VCC switch error flag, PCMCIA slot INPACK_ pin */
	222	cp->cp_pbdir &= ~(0x0020 \| 0x0010);
	223	cp->cp_pbpar &= ~(0x0020 \| 0x0010);
	224	udelay(500000);
	225	#endif
	226
	227	udelay(1000);
	228	debug ("Enable PCMCIA buffers and stop RESET\n");
	229	reg = PCMCIA_PGCRX(slot);
	230	reg &= ~__MY_PCMCIA_GCRX_CXRESET; /* active high */
	231	reg \|= __MY_PCMCIA_GCRX_CXOE; /* active low */
	232	reg &= ~NSCU_GCRX_CXOE;
b87dfd28	233
9d407995 WD	234	PCMCIA_PGCRX(slot) = reg;
	235
	236	udelay(250000); /* some cards need >150 ms to come up :-( */
	237
	238	debug ("# hardware_enable done\n");
	239
	240	return (0);
	241	}
	242
	243
cb51c0bf	244	#if defined(CONFIG_CMD_PCMCIA)
9d407995 WD	245	int pcmcia_hardware_disable(int slot)
9d407995 WD	246	{
9d407995 WD	247	u_long reg;
	248
	249	debug ("hardware_disable: " PCMCIA_BOARD_MSG " Slot %c\n", 'A'+slot);
	250
	251
	252	/* remove all power */
	253	power_off(slot);
	254
	255	debug ("Disable PCMCIA buffers and assert RESET\n");
	256	reg = 0;
	257	reg \|= __MY_PCMCIA_GCRX_CXRESET; /* active high */
	258	reg \|= NSCU_GCRX_CXOE; /* active low */
	259
	260	PCMCIA_PGCRX(slot) = reg;
	261
	262	udelay(10000);
	263
	264	return (0);
	265	}
ddb5d86f	266	#endif
9d407995 WD	267
	268	int pcmcia_voltage_set(int slot, int vcc, int vpp)
	269	{
	270	#ifndef CONFIG_NSCU
966083e9 WD	271	u_long reg;
966083e9 WD	272	# ifdef DEBUG
9d407995	273	volatile pcmconf8xx_t *pcmp =
6d0f6bcf	274	(pcmconf8xx_t )(&(((immap_t )CONFIG_SYS_IMMR)->im_pcmcia));
966083e9	275	# endif
9d407995 WD	276
	277	debug ("voltage_set: " PCMCIA_BOARD_MSG
	278	" Slot %c, Vcc=%d.%d, Vpp=%d.%d\n",
	279	'A'+slot, vcc/10, vcc%10, vpp/10, vcc%10);
	280
	281	/*
	282	* Disable PCMCIA buffers (isolate the interface)
	283	* and assert RESET signal
	284	*/
	285	debug ("Disable PCMCIA buffers and assert RESET\n");
	286	reg = PCMCIA_PGCRX(slot);
	287	reg \|= __MY_PCMCIA_GCRX_CXRESET; /* active high */
	288	reg &= ~__MY_PCMCIA_GCRX_CXOE; /* active low */
	289	reg \|= NSCU_GCRX_CXOE; /* active low */
b87dfd28	290
9d407995 WD	291	PCMCIA_PGCRX(slot) = reg;
	292	udelay(500);
	293
	294	debug ("PCMCIA power OFF\n");
	295	power_config(slot);
	296	power_off(slot);
	297
	298	switch(vcc) {
53677ef1	299	case 0: break;
9d407995 WD	300	case 33: power_on_3_3(slot); break;
9d407995 WD	301	case 50: power_on_5_0(slot); break;
53677ef1	302	default: goto done;
9d407995 WD	303	}
	304
	305	/* Checking supported voltages */
	306
	307	debug("PIPR: 0x%x --> %s\n", pcmp->pcmc_pipr,
	308	(pcmp->pcmc_pipr & 0x00008000) ? "only 5 V" : "can do 3.3V");
	309
	310	if (vcc)
	311	debug("PCMCIA powered at %sV\n", (vcc == 50) ? "5.0" : "3.3");
	312	else
	313	debug("PCMCIA powered down\n");
	314
	315	done:
	316	debug("Enable PCMCIA buffers and stop RESET\n");
	317	reg = PCMCIA_PGCRX(slot);
	318	reg &= ~__MY_PCMCIA_GCRX_CXRESET; /* active high */
	319	reg \|= __MY_PCMCIA_GCRX_CXOE; /* active low */
	320	reg &= ~NSCU_GCRX_CXOE; /* active low */
	321
	322	PCMCIA_PGCRX(slot) = reg;
	323	udelay(500);
	324
	325	debug("voltage_set: " PCMCIA_BOARD_MSG " Slot %c, DONE\n", slot+'A');
	326	#endif /* CONFIG_NSCU */
	327	return (0);
	328	}
	329
	330	#endif /* CONFIG_PCMCIA && (CONFIG_TQM8xxL \|\| CONFIG_SVM_SC8xx) */