/*
 * Copyright (C) 2014 Marvell
 * Author: Gregory CLEMENT <gregory.clement@free-electrons.com>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * version 2 as published by the Free Software Foundation.
 */

#include <linux/io.h>
#include <linux/mbus.h>
#include <linux/of.h>
#include <linux/platform_device.h>

#include <linux/usb.h>
#include <linux/usb/hcd.h>

#include "xhci-mvebu.h"

#define USB3_MAX_WINDOWS	4
#define USB3_WIN_CTRL(w)	(0x0 + ((w) * 8))
#define USB3_WIN_BASE(w)	(0x4 + ((w) * 8))

static void xhci_mvebu_mbus_config(void __iomem *base,
			const struct mbus_dram_target_info *dram)
{
	int win;

	/* Clear all existing windows */
	for (win = 0; win < USB3_MAX_WINDOWS; win++) {
		writel(0, base + USB3_WIN_CTRL(win));
		writel(0, base + USB3_WIN_BASE(win));
	}

	/* Program each DRAM CS in a seperate window */
	for (win = 0; win < dram->num_cs; win++) {
		const struct mbus_dram_window *cs = dram->cs + win;

		writel(((cs->size - 1) & 0xffff0000) | (cs->mbus_attr << 8) |
		       (dram->mbus_dram_target_id << 4) | 1,
		       base + USB3_WIN_CTRL(win));

		writel((cs->base & 0xffff0000), base + USB3_WIN_BASE(win));
	}
}

int xhci_mvebu_mbus_init_quirk(struct usb_hcd *hcd)
{
	struct device *dev = hcd->self.controller;
	struct platform_device *pdev = to_platform_device(dev);
	struct resource	*res;
	void __iomem *base;
	const struct mbus_dram_target_info *dram;

	res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
	if (!res)
		return -ENODEV;

	/*
	 * We don't use devm_ioremap() because this mapping should
	 * only exists for the duration of this probe function.
	 */
	base = ioremap(res->start, resource_size(res));
	if (!base)
		return -ENODEV;

	dram = mv_mbus_dram_info();
	xhci_mvebu_mbus_config(base, dram);

	/*
	 * This memory area was only needed to configure the MBus
	 * windows, and is therefore no longer useful.
	 */
	iounmap(base);

	return 0;
}
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?id=6ea17ed15d9a343c2d17d76b99501fcad204f309'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include?id=6ea17ed15d9a343c2d17d76b99501fcad204f309'>include</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include/scsi?id=6ea17ed15d9a343c2d17d76b99501fcad204f309'>scsi</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include/scsi/scsi_transport_iscsi.h?id=6ea17ed15d9a343c2d17d76b99501fcad204f309'>scsi_transport_iscsi.h</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='6ea17ed15d9a343c2d17d76b99501fcad204f309'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-01-08 11:22:00 -0800</td></tr>
<tr><th>committer</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-01-08 11:22:00 -0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/scsi/scsi_transport_iscsi.h?id=6ea17ed15d9a343c2d17d76b99501fcad204f309'>6ea17ed15d9a343c2d17d76b99501fcad204f309</a> (<a href='/cgit.cgi/linux/net-next.git/patch/include/scsi/scsi_transport_iscsi.h?id=6ea17ed15d9a343c2d17d76b99501fcad204f309'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=6ea17ed15d9a343c2d17d76b99501fcad204f309'>17a8ce6b61906d57a79e20639bc6330d0b805cc6</a> /<a href='/cgit.cgi/linux/net-next.git/tree/include/scsi/scsi_transport_iscsi.h?id=6ea17ed15d9a343c2d17d76b99501fcad204f309'>include/scsi/scsi_transport_iscsi.h</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/scsi/scsi_transport_iscsi.h?id=ea07b862ac8ef9b8c8358517d2e39f847dda6659'>ea07b862ac8ef9b8c8358517d2e39f847dda6659</a> (<a href='/cgit.cgi/linux/net-next.git/diff/include/scsi/scsi_transport_iscsi.h?id=6ea17ed15d9a343c2d17d76b99501fcad204f309&amp;id2=ea07b862ac8ef9b8c8358517d2e39f847dda6659'>diff</a>)</td></tr><tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/scsi/scsi_transport_iscsi.h?id=01d0f715869161dc70e2bf66fcdf6533a6a782cd'>01d0f715869161dc70e2bf66fcdf6533a6a782cd</a> (<a href='/cgit.cgi/linux/net-next.git/diff/include/scsi/scsi_transport_iscsi.h?id=6ea17ed15d9a343c2d17d76b99501fcad204f309&amp;id2=01d0f715869161dc70e2bf66fcdf6533a6a782cd'>diff</a>)</td></tr></table>
<div class='commit-subject'>Merge tag 'staging-4.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging</div><div class='commit-msg'>Pull staging/IIO fixes from Greg KH:
 "Here are some staging and IIO driver fixes for 4.10-rc3.

  Most of these are minor IIO fixes of reported issues, along with one
  network driver fix to resolve an issue. And a MAINTAINERS update with
  a new mailing list. All of these, except the MAINTAINERS file update,
  have been in linux-next with no reported issues (the MAINTAINERS patch
  happened on Friday...)"

* tag 'staging-4.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  MAINTAINERS: add greybus subsystem mailing list
  staging: octeon: Call SET_NETDEV_DEV()
  iio: accel: st_accel: fix LIS3LV02 reading and scaling
  iio: common: st_sensors: fix channel data parsing
  iio: max44000: correct value in illuminance_integration_time_available
  iio: adc: TI_AM335X_ADC should depend on HAS_DMA
  iio: bmi160: Fix time needed to sleep after command execution
  iio: 104-quad-8: Fix active level mismatch for the preset enable option
  iio: 104-quad-8: Fix off-by-one errors when addressing IOR
  iio: 104-quad-8: Fix index control configuration
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=6ea17ed15d9a343c2d17d76b99501fcad204f309'>Diffstat</a> (limited to 'include/scsi/scsi_transport_iscsi.h')</div><table summary='diffstat' class='diffstat'>