Beispiel #1
0
static int d7s_probe(struct platform_device *op)
{
	struct device_node *opts;
	int err = -EINVAL;
	struct d7s *p;
	u8 regs;

	if (d7s_device)
		goto out;

	p = kzalloc(sizeof(*p), GFP_KERNEL);
	err = -ENOMEM;
	if (!p)
		goto out;

	p->regs = of_ioremap(&op->resource[0], 0, sizeof(u8), "d7s");
	if (!p->regs) {
		printk(KERN_ERR PFX "Cannot map chip registers\n");
		goto out_free;
	}

	err = misc_register(&d7s_miscdev);
	if (err) {
		printk(KERN_ERR PFX "Unable to acquire miscdevice minor %i\n",
		       D7S_MINOR);
		goto out_iounmap;
	}

	/* OBP option "d7s-flipped?" is honored as default for the
	 * device, and reset default when detached
	 */
	regs = readb(p->regs);
	opts = of_find_node_by_path("/options");
	if (opts &&
	    of_get_property(opts, "d7s-flipped?", NULL))
		p->flipped = true;

	if (p->flipped)
		regs |= D7S_FLIP;
	else
		regs &= ~D7S_FLIP;

	writeb(regs,  p->regs);

	printk(KERN_INFO PFX "7-Segment Display%s at [%s:0x%llx] %s\n",
	       op->dev.of_node->full_name,
	       (regs & D7S_FLIP) ? " (FLIPPED)" : "",
	       op->resource[0].start,
	       sol_compat ? "in sol_compat mode" : "");

	dev_set_drvdata(&op->dev, p);
	d7s_device = p;
	err = 0;

out:
	return err;

out_iounmap:
	of_iounmap(&op->resource[0], p->regs, sizeof(u8));

out_free:
	kfree(p);
	goto out;
}
static int cg14_probe(struct platform_device *op)
{
	struct device_node *dp = op->dev.of_node;
	struct fb_info *info;
	struct cg14_par *par;
	int is_8mb, linebytes, i, err;

	info = framebuffer_alloc(sizeof(struct cg14_par), &op->dev);

	err = -ENOMEM;
	if (!info)
		goto out_err;
	par = info->par;

	spin_lock_init(&par->lock);

	sbusfb_fill_var(&info->var, dp, 8);
	info->var.red.length = 8;
	info->var.green.length = 8;
	info->var.blue.length = 8;

	linebytes = of_getintprop_default(dp, "linebytes",
					  info->var.xres);
	info->fix.smem_len = PAGE_ALIGN(linebytes * info->var.yres);

	if (!strcmp(dp->parent->name, "sbus") ||
	    !strcmp(dp->parent->name, "sbi")) {
		info->fix.smem_start = op->resource[0].start;
		par->iospace = op->resource[0].flags & IORESOURCE_BITS;
	} else {
		info->fix.smem_start = op->resource[1].start;
		par->iospace = op->resource[0].flags & IORESOURCE_BITS;
	}

	par->regs = of_ioremap(&op->resource[0], 0,
			       sizeof(struct cg14_regs), "cg14 regs");
	par->clut = of_ioremap(&op->resource[0], CG14_CLUT1,
			       sizeof(struct cg14_clut), "cg14 clut");
	par->cursor = of_ioremap(&op->resource[0], CG14_CURSORREGS,
				 sizeof(struct cg14_cursor), "cg14 cursor");

	info->screen_base = of_ioremap(&op->resource[1], 0,
				       info->fix.smem_len, "cg14 ram");

	if (!par->regs || !par->clut || !par->cursor || !info->screen_base)
		goto out_unmap_regs;

	is_8mb = (((op->resource[1].end - op->resource[1].start) + 1) ==
		  (8 * 1024 * 1024));

	BUILD_BUG_ON(sizeof(par->mmap_map) != sizeof(__cg14_mmap_map));
		
	memcpy(&par->mmap_map, &__cg14_mmap_map, sizeof(par->mmap_map));

	for (i = 0; i < CG14_MMAP_ENTRIES; i++) {
		struct sbus_mmap_map *map = &par->mmap_map[i];

		if (!map->size)
			break;
		if (map->poff & 0x80000000)
			map->poff = (map->poff & 0x7fffffff) +
				(op->resource[0].start -
				 op->resource[1].start);
		if (is_8mb &&
		    map->size >= 0x100000 &&
		    map->size <= 0x400000)
			map->size *= 2;
	}

	par->mode = MDI_8_PIX;
	par->ramsize = (is_8mb ? 0x800000 : 0x400000);

	info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN;
	info->fbops = &cg14_ops;

	__cg14_reset(par);

	if (fb_alloc_cmap(&info->cmap, 256, 0))
		goto out_unmap_regs;

	fb_set_cmap(&info->cmap, info);

	cg14_init_fix(info, linebytes, dp);

	err = register_framebuffer(info);
	if (err < 0)
		goto out_dealloc_cmap;

	dev_set_drvdata(&op->dev, info);

	printk(KERN_INFO "%s: cgfourteen at %lx:%lx, %dMB\n",
	       dp->full_name,
	       par->iospace, info->fix.smem_start,
	       par->ramsize >> 20);

	return 0;

out_dealloc_cmap:
	fb_dealloc_cmap(&info->cmap);

out_unmap_regs:
	cg14_unmap_regs(op, info, par);
	framebuffer_release(info);

out_err:
	return err;
}
Beispiel #3
0
static int __devinit bw2_probe(struct of_device *op, const struct of_device_id *match)
{
    struct device_node *dp = op->dev.of_node;
    struct fb_info *info;
    struct bw2_par *par;
    int linebytes, err;

    info = framebuffer_alloc(sizeof(struct bw2_par), &op->dev);

    err = -ENOMEM;
    if (!info)
        goto out_err;
    par = info->par;

    spin_lock_init(&par->lock);

    info->fix.smem_start = op->resource[0].start;
    par->which_io = op->resource[0].flags & IORESOURCE_BITS;

    sbusfb_fill_var(&info->var, dp, 1);
    linebytes = of_getintprop_default(dp, "linebytes",
                                      info->var.xres);

    info->var.red.length = info->var.green.length =
                               info->var.blue.length = info->var.bits_per_pixel;
    info->var.red.offset = info->var.green.offset =
                               info->var.blue.offset = 0;

    par->regs = of_ioremap(&op->resource[0], BWTWO_REGISTER_OFFSET,
                           sizeof(struct bw2_regs), "bw2 regs");
    if (!par->regs)
        goto out_release_fb;

    if (!of_find_property(dp, "width", NULL)) {
        err = bw2_do_default_mode(par, info, &linebytes);
        if (err)
            goto out_unmap_regs;
    }

    info->fix.smem_len = PAGE_ALIGN(linebytes * info->var.yres);

    info->flags = FBINFO_DEFAULT;
    info->fbops = &bw2_ops;

    info->screen_base = of_ioremap(&op->resource[0], 0,
                                   info->fix.smem_len, "bw2 ram");
    if (!info->screen_base)
        goto out_unmap_regs;

    bw2_blank(FB_BLANK_UNBLANK, info);

    bw2_init_fix(info, linebytes);

    err = register_framebuffer(info);
    if (err < 0)
        goto out_unmap_screen;

    dev_set_drvdata(&op->dev, info);

    printk(KERN_INFO "%s: bwtwo at %lx:%lx\n",
           dp->full_name, par->which_io, info->fix.smem_start);

    return 0;

out_unmap_screen:
    of_iounmap(&op->resource[0], info->screen_base, info->fix.smem_len);

out_unmap_regs:
    of_iounmap(&op->resource[0], par->regs, sizeof(struct bw2_regs));

out_release_fb:
    framebuffer_release(info);

out_err:
    return err;
}
static struct bbc_i2c_bus * __init attach_one_i2c(struct platform_device *op, int index)
{
	struct bbc_i2c_bus *bp;
	struct device_node *dp;
	int entry;

	bp = kzalloc(sizeof(*bp), GFP_KERNEL);
	if (!bp)
		return NULL;

	INIT_LIST_HEAD(&bp->temps);
	INIT_LIST_HEAD(&bp->fans); 

	bp->i2c_control_regs = of_ioremap(&op->resource[0], 0, 0x2, "bbc_i2c_regs");
	if (!bp->i2c_control_regs)
		goto fail;

	if (op->num_resources == 2) {
		bp->i2c_bussel_reg = of_ioremap(&op->resource[1], 0, 0x1, "bbc_i2c_bussel");
		if (!bp->i2c_bussel_reg)
			goto fail;
	} 

	bp->waiting = 0;
	init_waitqueue_head(&bp->wq);
	if (request_irq(op->archdata.irqs[0], bbc_i2c_interrupt,
			IRQF_SHARED, "bbc_i2c", bp))
		goto fail;

	bp->index = index;
	bp->op = op;

	spin_lock_init(&bp->lock);

	entry = 0;
	for (dp = op->dev.of_node->child;
	     dp && entry < 8;
	     dp = dp->sibling, entry++) {
		struct platform_device *child_op;

		child_op = of_find_device_by_node(dp);
		bp->devs[entry].device = child_op;
		bp->devs[entry].client_claimed = 0;
	}

	writeb(I2C_PCF_PIN, bp->i2c_control_regs + 0x0);
	bp->own = readb(bp->i2c_control_regs + 0x01);
	writeb(I2C_PCF_PIN | I2C_PCF_ES1, bp->i2c_control_regs + 0x0);
	bp->clock = readb(bp->i2c_control_regs + 0x01);

	printk(KERN_INFO "i2c-%d: Regs at %p, %d devices, own %02x, clock %02x.\n",
	       bp->index, bp->i2c_control_regs, entry, bp->own, bp->clock);

	reset_one_i2c(bp);

	return bp;

fail:
	if (bp->i2c_bussel_reg)
		of_iounmap(&op->resource[1], bp->i2c_bussel_reg, 1);
	if (bp->i2c_control_regs)
		of_iounmap(&op->resource[0], bp->i2c_control_regs, 2);
	kfree(bp);
	return NULL;
}
static int __devinit tcx_probe(struct of_device *op,
			       const struct of_device_id *match)
{
	struct device_node *dp = op->node;
	struct fb_info *info;
	struct tcx_par *par;
	int linebytes, i, err;

	info = framebuffer_alloc(sizeof(struct tcx_par), &op->dev);

	err = -ENOMEM;
	if (!info)
		goto out_err;
	par = info->par;

	spin_lock_init(&par->lock);

	par->lowdepth =
		(of_find_property(dp, "tcx-8-bit", NULL) != NULL);

	sbusfb_fill_var(&info->var, dp, 8);
	info->var.red.length = 8;
	info->var.green.length = 8;
	info->var.blue.length = 8;

	linebytes = of_getintprop_default(dp, "linebytes",
					  info->var.xres);
	info->fix.smem_len = PAGE_ALIGN(linebytes * info->var.yres);

	par->tec = of_ioremap(&op->resource[7], 0,
				  sizeof(struct tcx_tec), "tcx tec");
	par->thc = of_ioremap(&op->resource[9], 0,
				  sizeof(struct tcx_thc), "tcx thc");
	par->bt = of_ioremap(&op->resource[8], 0,
				 sizeof(struct bt_regs), "tcx dac");
	info->screen_base = of_ioremap(&op->resource[0], 0,
					   info->fix.smem_len, "tcx ram");
	if (!par->tec || !par->thc ||
	    !par->bt || !info->screen_base)
		goto out_unmap_regs;

	memcpy(&par->mmap_map, &__tcx_mmap_map, sizeof(par->mmap_map));
	if (!par->lowdepth) {
		par->cplane = of_ioremap(&op->resource[4], 0,
					     info->fix.smem_len * sizeof(u32),
					     "tcx cplane");
		if (!par->cplane)
			goto out_unmap_regs;
	} else {
		par->mmap_map[1].size = SBUS_MMAP_EMPTY;
		par->mmap_map[4].size = SBUS_MMAP_EMPTY;
		par->mmap_map[5].size = SBUS_MMAP_EMPTY;
		par->mmap_map[6].size = SBUS_MMAP_EMPTY;
	}

	info->fix.smem_start = op->resource[0].start;
	par->which_io = op->resource[0].flags & IORESOURCE_BITS;

	for (i = 0; i < TCX_MMAP_ENTRIES; i++) {
		int j;

		switch (i) {
		case 10:
			j = 12;
			break;

		case 11: case 12:
			j = i - 1;
			break;

		default:
			j = i;
			break;
		};
		par->mmap_map[i].poff = op->resource[j].start;
	}

	info->flags = FBINFO_DEFAULT;
	info->fbops = &tcx_ops;

	/* Initialize brooktree DAC. */
	sbus_writel(0x04 << 24, &par->bt->addr);         /* color planes */
	sbus_writel(0xff << 24, &par->bt->control);
	sbus_writel(0x05 << 24, &par->bt->addr);
	sbus_writel(0x00 << 24, &par->bt->control);
	sbus_writel(0x06 << 24, &par->bt->addr);         /* overlay plane */
	sbus_writel(0x73 << 24, &par->bt->control);
	sbus_writel(0x07 << 24, &par->bt->addr);
	sbus_writel(0x00 << 24, &par->bt->control);

	tcx_reset(info);

	tcx_blank(FB_BLANK_UNBLANK, info);

	if (fb_alloc_cmap(&info->cmap, 256, 0))
		goto out_unmap_regs;

	fb_set_cmap(&info->cmap, info);
	tcx_init_fix(info, linebytes);

	err = register_framebuffer(info);
	if (err < 0)
		goto out_dealloc_cmap;

	dev_set_drvdata(&op->dev, info);

	printk(KERN_INFO "%s: TCX at %lx:%lx, %s\n",
	       dp->full_name,
	       par->which_io,
	       info->fix.smem_start,
	       par->lowdepth ? "8-bit only" : "24-bit depth");

	return 0;

out_dealloc_cmap:
	fb_dealloc_cmap(&info->cmap);

out_unmap_regs:
	tcx_unmap_regs(op, info, par);

out_err:
	return err;
}
static int __devinit bpp_probe(struct platform_device *op)
{
	struct parport_operations *ops;
	struct bpp_regs __iomem *regs;
	int irq, dma, err = 0, size;
	unsigned char value_tcr;
	void __iomem *base;
	struct parport *p;

	irq = op->archdata.irqs[0];
	base = of_ioremap(&op->resource[0], 0,
			  resource_size(&op->resource[0]),
			  "sunbpp");
	if (!base)
		return -ENODEV;

	size = resource_size(&op->resource[0]);
	dma = PARPORT_DMA_NONE;

	ops = kmalloc(sizeof(struct parport_operations), GFP_KERNEL);
        if (!ops)
		goto out_unmap;

        memcpy (ops, &parport_sunbpp_ops, sizeof(struct parport_operations));

	dprintk(("register_port\n"));
	if (!(p = parport_register_port((unsigned long)base, irq, dma, ops)))
		goto out_free_ops;

	p->size = size;
	p->dev = &op->dev;

	if ((err = request_irq(p->irq, parport_irq_handler,
			       IRQF_SHARED, p->name, p)) != 0) {
		goto out_put_port;
	}

	parport_sunbpp_enable_irq(p);

	regs = (struct bpp_regs __iomem *)p->base;

	value_tcr = sbus_readb(&regs->p_tcr);
	value_tcr &= ~P_TCR_DIR;
	sbus_writeb(value_tcr, &regs->p_tcr);

	printk(KERN_INFO "%s: sunbpp at 0x%lx\n", p->name, p->base);

	dev_set_drvdata(&op->dev, p);

	parport_announce_port(p);

	return 0;

out_put_port:
	parport_put_port(p);

out_free_ops:
	kfree(ops);

out_unmap:
	of_iounmap(&op->resource[0], base, size);

	return err;
}
Beispiel #7
0
static int __devinit myri_sbus_probe(struct of_device *op, const struct of_device_id *match)
{
	struct device_node *dp = op->node;
	static unsigned version_printed;
	struct net_device *dev;
	DECLARE_MAC_BUF(mac);
	struct myri_eth *mp;
	const void *prop;
	static int num;
	int i, len;

	DET(("myri_ether_init(%p,%d):\n", op, num));
	dev = alloc_etherdev(sizeof(struct myri_eth));
	if (!dev)
		return -ENOMEM;

	if (version_printed++ == 0)
		printk(version);

	SET_NETDEV_DEV(dev, &op->dev);

	mp = netdev_priv(dev);
	spin_lock_init(&mp->irq_lock);
	mp->myri_op = op;

	/* Clean out skb arrays. */
	for (i = 0; i < (RX_RING_SIZE + 1); i++)
		mp->rx_skbs[i] = NULL;

	for (i = 0; i < TX_RING_SIZE; i++)
		mp->tx_skbs[i] = NULL;

	/* First check for EEPROM information. */
	prop = of_get_property(dp, "myrinet-eeprom-info", &len);

	if (prop)
		memcpy(&mp->eeprom, prop, sizeof(struct myri_eeprom));
	if (!prop) {
		/* No eeprom property, must cook up the values ourselves. */
		DET(("No EEPROM: "));
		mp->eeprom.bus_type = BUS_TYPE_SBUS;
		mp->eeprom.cpuvers =
			of_getintprop_default(dp, "cpu_version", 0);
		mp->eeprom.cval =
			of_getintprop_default(dp, "clock_value", 0);
		mp->eeprom.ramsz = of_getintprop_default(dp, "sram_size", 0);
		if (!mp->eeprom.cpuvers)
			mp->eeprom.cpuvers = CPUVERS_2_3;
		if (mp->eeprom.cpuvers < CPUVERS_3_0)
			mp->eeprom.cval = 0;
		if (!mp->eeprom.ramsz)
			mp->eeprom.ramsz = (128 * 1024);

		prop = of_get_property(dp, "myrinet-board-id", &len);
		if (prop)
			memcpy(&mp->eeprom.id[0], prop, 6);
		else
			set_boardid_from_idprom(mp, num);

		prop = of_get_property(dp, "fpga_version", &len);
		if (prop)
			memcpy(&mp->eeprom.fvers[0], prop, 32);
		else
			memset(&mp->eeprom.fvers[0], 0, 32);

		if (mp->eeprom.cpuvers == CPUVERS_4_1) {
			if (mp->eeprom.ramsz == (128 * 1024))
				mp->eeprom.ramsz = (256 * 1024);
			if ((mp->eeprom.cval == 0x40414041) ||
			    (mp->eeprom.cval == 0x90449044))
				mp->eeprom.cval = 0x50e450e4;
		}
	}
#ifdef DEBUG_DETECT
	dump_eeprom(mp);
#endif

	for (i = 0; i < 6; i++)
		dev->dev_addr[i] = mp->eeprom.id[i];

	determine_reg_space_size(mp);

	/* Map in the MyriCOM register/localram set. */
	if (mp->eeprom.cpuvers < CPUVERS_4_0) {
		/* XXX Makes no sense, if control reg is non-existant this
		 * XXX driver cannot function at all... maybe pre-4.0 is
		 * XXX only a valid version for PCI cards?  Ask feldy...
		 */
		DET(("Mapping regs for cpuvers < CPUVERS_4_0\n"));
		mp->regs = of_ioremap(&op->resource[0], 0,
				      mp->reg_size, "MyriCOM Regs");
		if (!mp->regs) {
			printk("MyriCOM: Cannot map MyriCOM registers.\n");
			goto err;
		}
		mp->lanai = mp->regs + (256 * 1024);
		mp->lregs = mp->lanai + (0x10000 * 2);
	} else {
		DET(("Mapping regs for cpuvers >= CPUVERS_4_0\n"));
		mp->cregs = of_ioremap(&op->resource[0], 0,
				       PAGE_SIZE, "MyriCOM Control Regs");
		mp->lregs = of_ioremap(&op->resource[0], (256 * 1024),
					 PAGE_SIZE, "MyriCOM LANAI Regs");
		mp->lanai = of_ioremap(&op->resource[0], (512 * 1024),
				       mp->eeprom.ramsz, "MyriCOM SRAM");
	}
	DET(("Registers mapped: cregs[%p] lregs[%p] lanai[%p]\n",
	     mp->cregs, mp->lregs, mp->lanai));

	if (mp->eeprom.cpuvers >= CPUVERS_4_0)
		mp->shmem_base = 0xf000;
	else
		mp->shmem_base = 0x8000;

	DET(("Shared memory base is %04x, ", mp->shmem_base));

	mp->shmem = (struct myri_shmem __iomem *)
		(mp->lanai + (mp->shmem_base * 2));
	DET(("shmem mapped at %p\n", mp->shmem));

	mp->rqack	= &mp->shmem->channel.recvqa;
	mp->rq		= &mp->shmem->channel.recvq;
	mp->sq		= &mp->shmem->channel.sendq;

	/* Reset the board. */
	DET(("Resetting LANAI\n"));
	myri_reset_off(mp->lregs, mp->cregs);
	myri_reset_on(mp->cregs);

	/* Turn IRQ's off. */
	myri_disable_irq(mp->lregs, mp->cregs);

	/* Reset once more. */
	myri_reset_on(mp->cregs);

	/* Get the supported DVMA burst sizes from our SBUS. */
	mp->myri_bursts = of_getintprop_default(dp->parent,
						"burst-sizes", 0x00);
	if (!sbus_can_burst64())
		mp->myri_bursts &= ~(DMA_BURST64);

	DET(("MYRI bursts %02x\n", mp->myri_bursts));

	/* Encode SBUS interrupt level in second control register. */
	i = of_getintprop_default(dp, "interrupts", 0);
	if (i == 0)
		i = 4;
	DET(("prom_getint(interrupts)==%d, irqlvl set to %04x\n",
	     i, (1 << i)));

	sbus_writel((1 << i), mp->cregs + MYRICTRL_IRQLVL);

	mp->dev = dev;
	dev->open = &myri_open;
	dev->stop = &myri_close;
	dev->hard_start_xmit = &myri_start_xmit;
	dev->tx_timeout = &myri_tx_timeout;
	dev->watchdog_timeo = 5*HZ;
	dev->set_multicast_list = &myri_set_multicast;
	dev->irq = op->irqs[0];

	/* Register interrupt handler now. */
	DET(("Requesting MYRIcom IRQ line.\n"));
	if (request_irq(dev->irq, &myri_interrupt,
			IRQF_SHARED, "MyriCOM Ethernet", (void *) dev)) {
		printk("MyriCOM: Cannot register interrupt handler.\n");
		goto err;
	}

	dev->mtu		= MYRINET_MTU;
	dev->change_mtu		= myri_change_mtu;
	dev->header_ops		= &myri_header_ops;

	dev->hard_header_len	= (ETH_HLEN + MYRI_PAD_LEN);

	/* Load code onto the LANai. */
	DET(("Loading LANAI firmware\n"));
	myri_load_lanai(mp);

	if (register_netdev(dev)) {
		printk("MyriCOM: Cannot register device.\n");
		goto err_free_irq;
	}

	dev_set_drvdata(&op->dev, mp);

	num++;

	printk("%s: MyriCOM MyriNET Ethernet %s\n",
	       dev->name, print_mac(mac, dev->dev_addr));

	return 0;

err_free_irq:
	free_irq(dev->irq, dev);
err:
	/* This will also free the co-allocated 'dev->priv' */
	free_netdev(dev);
	return -ENODEV;
}
Beispiel #8
0
static int __devinit envctrl_probe(struct of_device *op,
				   const struct of_device_id *match)
{
	struct device_node *dp;
	int index, err;

	if (i2c)
		return -EINVAL;

	i2c = of_ioremap(&op->resource[0], 0, 0x2, DRIVER_NAME);
	if (!i2c)
		return -ENOMEM;

	index = 0;
	dp = op->node->child;
	while (dp) {
		if (!strcmp(dp->name, "gpio")) {
			i2c_childlist[index].i2ctype = I2C_GPIO;
			envctrl_init_i2c_child(dp, &(i2c_childlist[index++]));
		} else if (!strcmp(dp->name, "adc")) {
			i2c_childlist[index].i2ctype = I2C_ADC;
			envctrl_init_i2c_child(dp, &(i2c_childlist[index++]));
		}

		dp = dp->sibling;
	}

	/* Set device address. */
	writeb(CONTROL_PIN, i2c + PCF8584_CSR);
	writeb(PCF8584_ADDRESS, i2c + PCF8584_DATA);

	/* Set system clock and SCL frequencies. */ 
	writeb(CONTROL_PIN | CONTROL_ES1, i2c + PCF8584_CSR);
	writeb(CLK_4_43 | BUS_CLK_90, i2c + PCF8584_DATA);

	/* Enable serial interface. */
	writeb(CONTROL_PIN | CONTROL_ES0 | CONTROL_ACK, i2c + PCF8584_CSR);
	udelay(200);

	/* Register the device as a minor miscellaneous device. */
	err = misc_register(&envctrl_dev);
	if (err) {
		printk(KERN_ERR PFX "Unable to get misc minor %d\n",
		       envctrl_dev.minor);
		goto out_iounmap;
	}

	/* Note above traversal routine post-incremented 'i' to accommodate 
	 * a next child device, so we decrement before reverse-traversal of
	 * child devices.
	 */
	printk(KERN_INFO PFX "Initialized ");
	for (--index; index >= 0; --index) {
		printk("[%s 0x%lx]%s", 
			(I2C_ADC == i2c_childlist[index].i2ctype) ? "adc" : 
			((I2C_GPIO == i2c_childlist[index].i2ctype) ? "gpio" : "unknown"), 
			i2c_childlist[index].addr, (0 == index) ? "\n" : " ");
	}

	kenvctrld_task = kthread_run(kenvctrld, NULL, "kenvctrld");
	if (IS_ERR(kenvctrld_task)) {
		err = PTR_ERR(kenvctrld_task);
		goto out_deregister;
	}

	return 0;

out_deregister:
	misc_deregister(&envctrl_dev);
out_iounmap:
	of_iounmap(&op->resource[0], i2c, 0x2);
	for (index = 0; index < ENVCTRL_MAX_CPU * 2; index++)
		kfree(i2c_childlist[index].tables);

	return err;
}
static int __devinit leo_probe(struct platform_device *op)
{
	struct device_node *dp = op->dev.of_node;
	struct fb_info *info;
	struct leo_par *par;
	int linebytes, err;

	info = framebuffer_alloc(sizeof(struct leo_par), &op->dev);

	err = -ENOMEM;
	if (!info)
		goto out_err;
	par = info->par;

	spin_lock_init(&par->lock);

	info->fix.smem_start = op->resource[0].start;
	par->which_io = op->resource[0].flags & IORESOURCE_BITS;

	sbusfb_fill_var(&info->var, dp, 32);
	leo_fixup_var_rgb(&info->var);

	linebytes = of_getintprop_default(dp, "linebytes",
					  info->var.xres);
	info->fix.smem_len = PAGE_ALIGN(linebytes * info->var.yres);

	par->lc_ss0_usr =
		of_ioremap(&op->resource[0], LEO_OFF_LC_SS0_USR,
			   0x1000, "leolc ss0usr");
	par->ld_ss0 =
		of_ioremap(&op->resource[0], LEO_OFF_LD_SS0,
			   0x1000, "leold ss0");
	par->ld_ss1 =
		of_ioremap(&op->resource[0], LEO_OFF_LD_SS1,
			   0x1000, "leold ss1");
	par->lx_krn =
		of_ioremap(&op->resource[0], LEO_OFF_LX_KRN,
			   0x1000, "leolx krn");
	par->cursor =
		of_ioremap(&op->resource[0], LEO_OFF_LX_CURSOR,
			   sizeof(struct leo_cursor), "leolx cursor");
	info->screen_base =
		of_ioremap(&op->resource[0], LEO_OFF_SS0,
			   0x800000, "leo ram");
	if (!par->lc_ss0_usr ||
	    !par->ld_ss0 ||
	    !par->ld_ss1 ||
	    !par->lx_krn ||
	    !par->cursor ||
	    !info->screen_base)
		goto out_unmap_regs;

	info->flags = FBINFO_DEFAULT;
	info->fbops = &leo_ops;
	info->pseudo_palette = par->clut_data;

	leo_init_wids(info);
	leo_init_hw(info);

	leo_blank(FB_BLANK_UNBLANK, info);

	if (fb_alloc_cmap(&info->cmap, 256, 0))
		goto out_unmap_regs;

	leo_init_fix(info, dp);

	err = register_framebuffer(info);
	if (err < 0)
		goto out_dealloc_cmap;

	dev_set_drvdata(&op->dev, info);

	printk(KERN_INFO "%s: leo at %lx:%lx\n",
	       dp->full_name,
	       par->which_io, info->fix.smem_start);

	return 0;

out_dealloc_cmap:
	fb_dealloc_cmap(&info->cmap);

out_unmap_regs:
	leo_unmap_regs(op, info, par);
	framebuffer_release(info);

out_err:
	return err;
}
Beispiel #10
0
static int __devinit cg14_init_one(struct of_device *op)
{
	struct device_node *dp = op->node;
	struct all_info *all;
	int is_8mb, linebytes, i, err;

	all = kzalloc(sizeof(*all), GFP_KERNEL);
	if (!all)
		return -ENOMEM;

	spin_lock_init(&all->par.lock);

	sbusfb_fill_var(&all->info.var, dp->node, 8);
	all->info.var.red.length = 8;
	all->info.var.green.length = 8;
	all->info.var.blue.length = 8;

	linebytes = of_getintprop_default(dp, "linebytes",
					  all->info.var.xres);
	all->par.fbsize = PAGE_ALIGN(linebytes * all->info.var.yres);

	if (!strcmp(dp->parent->name, "sbus") ||
	    !strcmp(dp->parent->name, "sbi")) {
		all->par.physbase = op->resource[0].start;
		all->par.iospace = op->resource[0].flags & IORESOURCE_BITS;
	} else {
		all->par.physbase = op->resource[1].start;
		all->par.iospace = op->resource[0].flags & IORESOURCE_BITS;
	}

	all->par.regs = of_ioremap(&op->resource[0], 0,
				   sizeof(struct cg14_regs), "cg14 regs");
	all->par.clut = of_ioremap(&op->resource[0], CG14_CLUT1,
				   sizeof(struct cg14_clut), "cg14 clut");
	all->par.cursor = of_ioremap(&op->resource[0], CG14_CURSORREGS,
				   sizeof(struct cg14_cursor), "cg14 cursor");

	all->info.screen_base = of_ioremap(&op->resource[1], 0,
					   all->par.fbsize, "cg14 ram");

	if (!all->par.regs || !all->par.clut || !all->par.cursor ||
	    !all->info.screen_base)
		cg14_unmap_regs(all);

	is_8mb = (((op->resource[1].end - op->resource[1].start) + 1) ==
		  (8 * 1024 * 1024));

	BUILD_BUG_ON(sizeof(all->par.mmap_map) != sizeof(__cg14_mmap_map));
		
	memcpy(&all->par.mmap_map, &__cg14_mmap_map,
	       sizeof(all->par.mmap_map));

	for (i = 0; i < CG14_MMAP_ENTRIES; i++) {
		struct sbus_mmap_map *map = &all->par.mmap_map[i];

		if (!map->size)
			break;
		if (map->poff & 0x80000000)
			map->poff = (map->poff & 0x7fffffff) +
				(op->resource[0].start -
				 op->resource[1].start);
		if (is_8mb &&
		    map->size >= 0x100000 &&
		    map->size <= 0x400000)
			map->size *= 2;
	}

	all->par.mode = MDI_8_PIX;
	all->par.ramsize = (is_8mb ? 0x800000 : 0x400000);

	all->info.flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN;
	all->info.fbops = &cg14_ops;
	all->info.par = &all->par;

	__cg14_reset(&all->par);

	if (fb_alloc_cmap(&all->info.cmap, 256, 0)) {
		cg14_unmap_regs(all);
		kfree(all);
		return -ENOMEM;
	}
	fb_set_cmap(&all->info.cmap, &all->info);

	cg14_init_fix(&all->info, linebytes, dp);

	err = register_framebuffer(&all->info);
	if (err < 0) {
		fb_dealloc_cmap(&all->info.cmap);
		cg14_unmap_regs(all);
		kfree(all);
		return err;
	}

	dev_set_drvdata(&op->dev, all);

	printk("%s: cgfourteen at %lx:%lx, %dMB\n",
	       dp->full_name,
	       all->par.iospace, all->par.physbase,
	       all->par.ramsize >> 20);

	return 0;
}