cmd_pcmcia.c

F:worksip2440a board可启动u-boot-like.tar.gz F:worksip2440a board可启动u-boot-like.tar.gz

}

#endif	/* ICU862 */


/* -------------------------------------------------------------------- */
/* C2MON Boards by TTTech Computertechnik AG				*/
/* -------------------------------------------------------------------- */

#if defined(CONFIG_C2MON)

#define PCMCIA_BOARD_MSG "C2MON"

static void cfg_ports (void);

static int 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)
static int 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 */


static int 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);
    }
#endif

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);
}

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);
}

#endif	/* C2MON */

/* -------------------------------------------------------------------- */
/* MBX board from Morotola						*/
/* -------------------------------------------------------------------- */

#if defined( CONFIG_MBX )
#include <../board/mbx8xx/csr.h>

/* A lot of this has been taken from the RPX code in this file it works from me.
   I have added the voltage selection for the MBX board. */

/* MBX voltage bit in control register #2 */
#define CR2_VPP12       ((uchar)0x10)
#define CR2_VPPVDD      ((uchar)0x20)
#define CR2_VDD5        ((uchar)0x40)
#define CR2_VDD3        ((uchar)0x80)

#define PCMCIA_BOARD_MSG "MBX860"

static int voltage_set (int slot, int vcc, int vpp)
{
	uchar reg = 0;

	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);

	switch (vcc) {
	case 0:
		break;
	case 33:
		reg |= CR2_VDD3;
		break;
	case 50:
		reg |= CR2_VDD5;
		break;
	default:
		return 1;
	}

	switch (vpp) {
	case 0:
		break;
	case 33:
	case 50:
		if (vcc == vpp) {
			reg |= CR2_VPPVDD;
		} else {
			return 1;
		}
		break;
	case 120:
		reg |= CR2_VPP12;
		break;
	default:
		return 1;
	}

	/* first, turn off all power */
	MBX_CSR2 &= ~(CR2_VDDSEL | CR2_VPPSEL);

	/* enable new powersettings */
	MBX_CSR2 |= reg;
	debug ("MBX_CSR2 read = 0x%02x\n", MBX_CSR2);

	return (0);
}

static int hardware_enable (int slot)
{
	volatile immap_t *immap;
	volatile cpm8xx_t *cp;
	volatile pcmconf8xx_t *pcmp;
	volatile sysconf8xx_t *sysp;
	uint reg, mask;

	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));

	/* 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);

	/* remove all power */
	voltage_set (slot, 0, 0);
	/*
	 * 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);
#ifndef CONFIG_HMI10
	if (pcmp->pcmc_pipr & (0x18000000 >> (slot << 4))) {
#else
	if (pcmp->pcmc_pipr & (0x10000000 >> (slot << 4))) {
#endif	/* CONFIG_HMI10 */
		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) {
		voltage_set (_slot_, 50, 0);
		printf (" 5.0V card found: ");
	} else {
		voltage_set (_slot_, 33, 0);
		printf (" 3.3V card found: ");
	}

	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)
static int hardware_disable (int slot)
{
	return 0;	/* No hardware to disable */
}
#endif /* CFG_CMD_PCMCIA */
#endif /* CONFIG_MBX */
/* -------------------------------------------------------------------- */
/* R360MPI Board							*/
/* -------------------------------------------------------------------- */

#if defined(CONFIG_R360MPI)

#define PCMCIA_BOARD_MSG "R360MPI"


static int hardware_enable(int slot)
{
	volatile immap_t	*immap;
	volatile cpm8xx_t	*cp;
	volatile pcmconf8xx_t	*pcmp;
	volatile sysconf8xx_t	*sysp;
	uint reg, mask;

	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 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);

	/*
	 * Configure Ports A, B & C pins for
	 * 5 Volts Enable and 3 Volts enable
	 */
	immap->im_ioport.iop_pcpar &= ~(0x0400);
	immap->im_ioport.iop_pcso  &= ~(0x0400);/*
	immap->im_ioport.iop_pcdir |= 0x0400;*/

	immap->im_ioport.iop_papar &= ~(0x0200);/*
	immap->im_ioport.iop_padir |= 0x0200;*/
#if 0
	immap->im_ioport.iop_pbpar &= ~(0xC000);
	immap->im_ioport.iop_pbdir &= ~(0xC000);
#endif
	/* remove all power */

	immap->im_ioport.iop_pcdat |= 0x0400;
	immap->im_ioport.iop_padat |= 0x0200;

	/*
	 * 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) {
		immap->im_ioport.iop_pcdat &= ~(0x4000);
		puts (" 5.0V card found: ");
	} else {
		immap->im_ioport.iop_padat &= ~(0x0002);
		puts (" 3.3V card found: ");
	}
	immap->im_ioport.iop_pcdir |= 0x0400;