cmd_ide.c

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	if (ide_preinit ()) {
		puts ("ide_preinit failed\n");
		return;
	}
#endif	/* CONFIG_IDE_PREINIT */

#ifdef CONFIG_IDE_8xx_PCCARD
	extern int pcmcia_on (void);
	extern int ide_devices_found; /* Initialized in check_ide_device() */

	WATCHDOG_RESET();

	ide_devices_found = 0;
	/* initialize the PCMCIA IDE adapter card */
	pcmcia_on();
	if (!ide_devices_found)
		return;
	udelay (1000000);	/* 1 s */
#endif	/* CONFIG_IDE_8xx_PCCARD */

	WATCHDOG_RESET();

#ifdef CONFIG_IDE_8xx_DIRECT
	/* Initialize PIO timing tables */
	for (i=0; i <= IDE_MAX_PIO_MODE; ++i) {
	    pio_config_clk[i].t_setup  = PCMCIA_MK_CLKS(pio_config_ns[i].t_setup,
							    gd->bus_clk);
	    pio_config_clk[i].t_length = PCMCIA_MK_CLKS(pio_config_ns[i].t_length,
							    gd->bus_clk);
	    pio_config_clk[i].t_hold   = PCMCIA_MK_CLKS(pio_config_ns[i].t_hold,
							    gd->bus_clk);
	    PRINTF ("PIO Mode %d: setup=%2d ns/%d clk"
		    "  len=%3d ns/%d clk"
		    "  hold=%2d ns/%d clk\n",
		    i,
		    pio_config_ns[i].t_setup,  pio_config_clk[i].t_setup,
		    pio_config_ns[i].t_length, pio_config_clk[i].t_length,
		    pio_config_ns[i].t_hold,   pio_config_clk[i].t_hold);
	}
#endif /* CONFIG_IDE_8xx_DIRECT */

	/* Reset the IDE just to be sure.
	 * Light LED's to show
	 */
	ide_led ((LED_IDE1 | LED_IDE2), 1);		/* LED's on	*/
	ide_reset (); /* ATAPI Drives seems to need a proper IDE Reset */

#ifdef CONFIG_IDE_8xx_DIRECT
	/* PCMCIA / IDE initialization for common mem space */
	pcmp->pcmc_pgcrb = 0;

	/* start in PIO mode 0 - most relaxed timings */
	pio_mode = 0;
	set_pcmcia_timing (pio_mode);
#endif /* CONFIG_IDE_8xx_DIRECT */

	/*
	 * Wait for IDE to get ready.
	 * According to spec, this can take up to 31 seconds!
	 */
#ifndef CONFIG_AMIGAONEG3SE
	for (bus=0; bus<CFG_IDE_MAXBUS; ++bus) {
		int dev = bus * (CFG_IDE_MAXDEVICE / CFG_IDE_MAXBUS);
#else
	s = getenv("ide_maxbus");
	if (s)
	    max_bus_scan = simple_strtol(s, NULL, 10);
	else
	    max_bus_scan = CFG_IDE_MAXBUS;

	for (bus=0; bus<max_bus_scan; ++bus) {
		int dev = bus * (CFG_IDE_MAXDEVICE / max_bus_scan);
#endif

#ifdef CONFIG_IDE_8xx_PCCARD
		/* Skip non-ide devices from probing */
		if ((ide_devices_found & (1 << bus)) == 0) {
			ide_led ((LED_IDE1 | LED_IDE2), 0); /* LED's off */
			continue;
		}
#endif
		printf ("Bus %d: ", bus);

		ide_bus_ok[bus] = 0;

		/* Select device
		 */
		udelay (100000);		/* 100 ms */
		ide_outb (dev, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(dev));
		udelay (100000);		/* 100 ms */
#ifdef CONFIG_AMIGAONEG3SE
		ata_reset_time = ATA_RESET_TIME;
		s = getenv("ide_reset_timeout");
		if (s) ata_reset_time = 2*simple_strtol(s, NULL, 10);
#endif
		i = 0;
		do {
			udelay (10000);		/* 10 ms */

			c = ide_inb (dev, ATA_STATUS);
			i++;
#ifdef CONFIG_AMIGAONEG3SE
			if (i > (ata_reset_time * 100)) {
#else
			if (i > (ATA_RESET_TIME * 100)) {
#endif
				puts ("** Timeout **\n");
				ide_led ((LED_IDE1 | LED_IDE2), 0); /* LED's off */
#ifdef CONFIG_AMIGAONEG3SE
				/* If this is the second bus, the first one was OK */
				if (bus != 0) {
				    ide_bus_ok[bus] = 0;
				    goto skip_bus;
				}
#endif
				return;
			}
			if ((i >= 100) && ((i%100)==0)) {
				putc ('.');
			}
		} while (c & ATA_STAT_BUSY);

		if (c & (ATA_STAT_BUSY | ATA_STAT_FAULT)) {
			puts ("not available  ");
			PRINTF ("Status = 0x%02X ", c);
#ifndef CONFIG_ATAPI /* ATAPI Devices do not set DRDY */
		} else  if ((c & ATA_STAT_READY) == 0) {
			puts ("not available  ");
			PRINTF ("Status = 0x%02X ", c);
#endif
		} else {
			puts ("OK ");
			ide_bus_ok[bus] = 1;
		}
		WATCHDOG_RESET();
	}

#ifdef CONFIG_AMIGAONEG3SE
      skip_bus:
#endif
	putc ('\n');

	ide_led ((LED_IDE1 | LED_IDE2), 0);	/* LED's off	*/

	curr_device = -1;
	for (i=0; i<CFG_IDE_MAXDEVICE; ++i) {
#ifdef CONFIG_IDE_LED
		int led = (IDE_BUS(i) == 0) ? LED_IDE1 : LED_IDE2;
#endif
		ide_dev_desc[i].type=DEV_TYPE_UNKNOWN;
		ide_dev_desc[i].if_type=IF_TYPE_IDE;
		ide_dev_desc[i].dev=i;
		ide_dev_desc[i].part_type=PART_TYPE_UNKNOWN;
		ide_dev_desc[i].blksz=0;
		ide_dev_desc[i].lba=0;
		ide_dev_desc[i].block_read=ide_read;
		if (!ide_bus_ok[IDE_BUS(i)])
			continue;
		ide_led (led, 1);		/* LED on	*/
		ide_ident(&ide_dev_desc[i]);
		ide_led (led, 0);		/* LED off	*/
		dev_print(&ide_dev_desc[i]);
/*		ide_print (i); */
		if ((ide_dev_desc[i].lba > 0) && (ide_dev_desc[i].blksz > 0)) {
			init_part (&ide_dev_desc[i]);			/* initialize partition type */
			if (curr_device < 0)
				curr_device = i;
		}
	}
	WATCHDOG_RESET();
}

/* ------------------------------------------------------------------------- */

block_dev_desc_t * ide_get_dev(int dev)
{
	return ((block_dev_desc_t *)&ide_dev_desc[dev]);
}


#ifdef CONFIG_IDE_8xx_DIRECT

static void
set_pcmcia_timing (int pmode)
{
	volatile immap_t *immr = (immap_t *)CFG_IMMR;
	volatile pcmconf8xx_t *pcmp = &(immr->im_pcmcia);
	ulong timings;

	PRINTF ("Set timing for PIO Mode %d\n", pmode);

	timings = PCMCIA_SHT(pio_config_clk[pmode].t_hold)
		| PCMCIA_SST(pio_config_clk[pmode].t_setup)
		| PCMCIA_SL (pio_config_clk[pmode].t_length)
		;

	/* IDE 0
	 */
	pcmp->pcmc_pbr0 = CFG_PCMCIA_PBR0;
	pcmp->pcmc_por0 = CFG_PCMCIA_POR0
#if (CFG_PCMCIA_POR0 != 0)
			| timings
#endif
			;
	PRINTF ("PBR0: %08x  POR0: %08x\n", pcmp->pcmc_pbr0, pcmp->pcmc_por0);

	pcmp->pcmc_pbr1 = CFG_PCMCIA_PBR1;
	pcmp->pcmc_por1 = CFG_PCMCIA_POR1
#if (CFG_PCMCIA_POR1 != 0)
			| timings
#endif
			;
	PRINTF ("PBR1: %08x  POR1: %08x\n", pcmp->pcmc_pbr1, pcmp->pcmc_por1);

	pcmp->pcmc_pbr2 = CFG_PCMCIA_PBR2;
	pcmp->pcmc_por2 = CFG_PCMCIA_POR2
#if (CFG_PCMCIA_POR2 != 0)
			| timings
#endif
			;
	PRINTF ("PBR2: %08x  POR2: %08x\n", pcmp->pcmc_pbr2, pcmp->pcmc_por2);

	pcmp->pcmc_pbr3 = CFG_PCMCIA_PBR3;
	pcmp->pcmc_por3 = CFG_PCMCIA_POR3
#if (CFG_PCMCIA_POR3 != 0)
			| timings
#endif
			;
	PRINTF ("PBR3: %08x  POR3: %08x\n", pcmp->pcmc_pbr3, pcmp->pcmc_por3);

	/* IDE 1
	 */
	pcmp->pcmc_pbr4 = CFG_PCMCIA_PBR4;
	pcmp->pcmc_por4 = CFG_PCMCIA_POR4
#if (CFG_PCMCIA_POR4 != 0)
			| timings
#endif
			;
	PRINTF ("PBR4: %08x  POR4: %08x\n", pcmp->pcmc_pbr4, pcmp->pcmc_por4);

	pcmp->pcmc_pbr5 = CFG_PCMCIA_PBR5;
	pcmp->pcmc_por5 = CFG_PCMCIA_POR5
#if (CFG_PCMCIA_POR5 != 0)
			| timings
#endif
			;
	PRINTF ("PBR5: %08x  POR5: %08x\n", pcmp->pcmc_pbr5, pcmp->pcmc_por5);

	pcmp->pcmc_pbr6 = CFG_PCMCIA_PBR6;
	pcmp->pcmc_por6 = CFG_PCMCIA_POR6
#if (CFG_PCMCIA_POR6 != 0)
			| timings
#endif
			;
	PRINTF ("PBR6: %08x  POR6: %08x\n", pcmp->pcmc_pbr6, pcmp->pcmc_por6);

	pcmp->pcmc_pbr7 = CFG_PCMCIA_PBR7;
	pcmp->pcmc_por7 = CFG_PCMCIA_POR7
#if (CFG_PCMCIA_POR7 != 0)
			| timings
#endif
			;
	PRINTF ("PBR7: %08x  POR7: %08x\n", pcmp->pcmc_pbr7, pcmp->pcmc_por7);

}

#endif	/* CONFIG_IDE_8xx_DIRECT */

/* ------------------------------------------------------------------------- */

#if defined(__PPC__) || defined(CONFIG_PXA_PCMCIA)
static void __inline__
ide_outb(int dev, int port, unsigned char val)
{
	PRINTF ("ide_outb (dev= %d, port= 0x%x, val= 0x%02x) : @ 0x%08lx\n",
		dev, port, val, (ATA_CURR_BASE(dev)+port));

	/* Ensure I/O operations complete */
	EIEIO;
	*((uchar *)(ATA_CURR_BASE(dev)+port)) = val;
}
#else	/* ! __PPC__ */
static void __inline__
ide_outb(int dev, int port, unsigned char val)
{
	outb(val, ATA_CURR_BASE(dev)+port);
}
#endif	/* __PPC__ */


#if defined(__PPC__) || defined(CONFIG_PXA_PCMCIA)
static unsigned char __inline__
ide_inb(int dev, int port)
{
	uchar val;
	/* Ensure I/O operations complete */
	EIEIO;
	val = *((uchar *)(ATA_CURR_BASE(dev)+port));
	PRINTF ("ide_inb (dev= %d, port= 0x%x) : @ 0x%08lx -> 0x%02x\n",
		dev, port, (ATA_CURR_BASE(dev)+port), val);
	return (val);
}
#else	/* ! __PPC__ */
static unsigned char __inline__
ide_inb(int dev, int port)
{
  return inb(ATA_CURR_BASE(dev)+port);
}
#endif	/* __PPC__ */

#ifdef __PPC__
# ifdef CONFIG_AMIGAONEG3SE
static void
output_data_short(int dev, ulong *sect_buf, int words)
{
	ushort	*dbuf;
	volatile ushort	*pbuf;

	pbuf = (ushort *)(ATA_CURR_BASE(dev)+ATA_DATA_REG);
	dbuf = (ushort *)sect_buf;
	while (words--) {
		EIEIO;
		*pbuf = *dbuf++;
		EIEIO;
	}

	if (words&1)
	    *pbuf = 0;
}
# endif	/* CONFIG_AMIGAONEG3SE */
#endif /* __PPC_ */

/* We only need to swap data if we are running on a big endian cpu. */
/* But Au1x00 cpu:s already swaps data in big endian mode! */
#if defined(__LITTLE_ENDIAN) || defined(CONFIG_AU1X00)
#define input_swap_data(x,y,z) input_data(x,y,z)
#else
static void
input_swap_data(int dev, ulong *sect_buf, int words)
{
#ifndef CONFIG_HMI10
	volatile ushort	*pbuf = (ushort *)(ATA_CURR_BASE(dev)+ATA_DATA_REG);
	ushort	*dbuf = (ushort *)sect_buf;

	PRINTF("in input swap data base for read is %lx\n", (unsigned long) pbuf);

	while (words--) {
		*dbuf++ = ld_le16(pbuf);
		*dbuf++ = ld_le16(pbuf);
	}
#else	/* CONFIG_HMI10 */
	uchar i;
	volatile uchar *pbuf_even = (uchar *)(ATA_CURR_BASE(dev)+ATA_DATA_EVEN);
	volatile uchar *pbuf_odd  = (uchar *)(ATA_CURR_BASE(dev)+ATA_DATA_ODD);
	ushort  *dbuf = (ushort *)sect_buf;

	while (words--) {
		for (i=0; i<2; i++) {
			*(((uchar *)(dbuf)) + 1) = *pbuf_even;
			*(uchar *)dbuf = *pbuf_odd;
			dbuf+=1;
		}
	}
#endif	/* CONFIG_HMI10 */
}
#endif	/* __LITTLE_ENDIAN || CONFIG_AU1X00 */


#if defined(__PPC__) || defined(CONFIG_PXA_PCMCIA)
static void
output_data(int dev, ulong *sect_buf, int words)
{
#ifndef CONFIG_HMI10
	ushort	*dbuf;
	volatile ushort	*pbuf;

	pbuf = (ushort *)(ATA_CURR_BASE(dev)+ATA_DATA_REG);
	dbuf = (ushort *)sect_buf;
	while (words--) {
		EIEIO;
		*pbuf = *dbuf++;
		EIEIO;
		*pbuf = *dbuf++;
	}
#else	/* CONFIG_HMI10 */
	uchar	*dbuf;
	volatile uchar	*pbuf_even;
	volatile uchar	*pbuf_odd;

	pbuf_even = (uchar *)(ATA_CURR_BASE(dev)+ATA_DATA_EVEN);
	pbuf_odd  = (uchar *)(ATA_CURR_BASE(dev)+ATA_DATA_ODD);
	dbuf = (uchar *)sect_buf;
	while (words--) {
		EIEIO;
		*pbuf_even = *dbuf++;
		EIEIO;
		*pbuf_odd = *dbuf++;
		EIEIO;
		*pbuf_even = *dbuf++;
		EIEIO;
		*pbuf_odd = *dbuf++;
	}
#endif	/* CONFIG_HMI10 */
}
#else	/* ! __PPC__ */
static void
output_data(int dev, ulong *sect_buf, int words)
{
	outsw(ATA_CURR_BASE(dev)+ATA_DATA_REG, sect_buf, words<<1);
}
#endif	/* __PPC__ */

#if defined(__PPC__) || defined(CONFIG_PXA_PCMCIA)
static void
input_data(int dev, ulong *sect_buf, int words)
{
#ifndef CONFIG_HMI10
	ushort	*dbuf;
	volatile ushort	*pbuf;

	pbuf = (ushort *)(ATA_CURR_BASE(dev)+ATA_DATA_REG);
	dbuf = (ushort *)sect_buf;

	PRINTF("in input data base for read is %lx\n", (unsigned long) pbuf);

	while (words--) {
		EIEIO;
		*dbuf++ = *pbuf;
		EIEIO;
		*dbuf++ = *pbuf;
	}
#else	/* CONFIG_HMI10 */
	uchar	*dbuf;
	volatile uchar	*pbuf_even;
	volatile uchar	*pbuf_odd;

	pbuf_even = (uchar *)(ATA_CURR_BASE(dev)+ATA_DATA_EVEN);
	pbuf_odd  = (uchar *)(ATA_CURR_BASE(dev)+ATA_DATA_ODD);
	dbuf = (uchar *)sect_buf;
	while (words--) {
		EIEIO;
		*dbuf++ = *pbuf_even;
		EIEIO;
		*dbuf++ = *pbuf_odd;
		EIEIO;
		*dbuf++ = *pbuf_even;
		EIEIO;
		*dbuf++ = *pbuf_odd;
	}
#endif	/* CONFIG_HMI10 */
}
#else	/* ! __PPC__ */
static void
input_data(int dev, ulong *sect_buf, int words)
{
	insw(ATA_CURR_BASE(dev)+ATA_DATA_REG, sect_buf, words << 1);
}

#endif	/* __PPC__ */

#ifdef CONFIG_AMIGAONEG3SE
static void
input_data_short(int dev, ulong *sect_buf, int words)
{
	ushort	*dbuf;
	volatile ushort	*pbuf;

	pbuf = (ushort *)(ATA_CURR_BASE(dev)+ATA_DATA_REG);
	dbuf = (ushort *)sect_buf;
	while (words--) {
		EIEIO;
		*dbuf++ = *pbuf;
		EIEIO;
	}

	if (words&1) {
	    ushort dummy;
	    dummy = *pbuf;
	}
}
#endif

/* -------------------------------------------------------------------------
 */
static void ide_ident (block_dev_desc_t *dev_desc)
{
	ulong iobuf[ATA_SECTORWORDS];
	unsigned char c;
	hd_driveid_t *iop = (hd_driveid_t *)iobuf;

#ifdef CONFIG_AMIGAONEG3SE
	int max_bus_scan;
	char *s;
#endif
#ifdef CONFIG_ATAPI
	int retries = 0;
	int do_retry = 0;
#endif

#if 0
	int mode, cycle_time;
#endif
	int device;
	device=dev_desc->dev;
	printf ("  Device %d: ", device);

#ifdef CONFIG_AMIGAONEG3SE
	s = getenv("ide_maxbus");
	if (s) {
		max_bus_scan = simple_strtol(s, NULL, 10);
	} else {
		max_bus_scan = CFG_IDE_MAXBUS;
	}
	if (device >= max_bus_scan*2) {
		dev_desc->type=DEV_TYPE_UNKNOWN;
		return;
	}
#endif