/*
 * 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;
}
/diff/include?id=1372cef1c697d8aac0cc923f8aa2c37d790ec9ed'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/include'>
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?id=1372cef1c697d8aac0cc923f8aa2c37d790ec9ed'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include?id=1372cef1c697d8aac0cc923f8aa2c37d790ec9ed'>include</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='1372cef1c697d8aac0cc923f8aa2c37d790ec9ed'/><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>Mark Rutland &lt;mark.rutland@arm.com&gt;</td><td class='right'>2017-01-25 19:30:09 +0000</td></tr>
<tr><th>committer</th><td>Mark Brown &lt;broonie@kernel.org&gt;</td><td class='right'>2017-01-25 21:05:37 +0000</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include?id=1372cef1c697d8aac0cc923f8aa2c37d790ec9ed'>1372cef1c697d8aac0cc923f8aa2c37d790ec9ed</a> (<a href='/cgit.cgi/linux/net-next.git/patch/include?id=1372cef1c697d8aac0cc923f8aa2c37d790ec9ed'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=1372cef1c697d8aac0cc923f8aa2c37d790ec9ed'>ed5f350cd559bc15ae370f0c9fd280204e98597d</a> /<a href='/cgit.cgi/linux/net-next.git/tree/include?id=1372cef1c697d8aac0cc923f8aa2c37d790ec9ed'>include</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include?id=d00b74613fb18dfd0a5aa99270ee2e72d5c808d7'>d00b74613fb18dfd0a5aa99270ee2e72d5c808d7</a> (<a href='/cgit.cgi/linux/net-next.git/diff/include?id=1372cef1c697d8aac0cc923f8aa2c37d790ec9ed&amp;id2=d00b74613fb18dfd0a5aa99270ee2e72d5c808d7'>diff</a>)</td></tr></table>
<div class='commit-subject'>regulator: fixed: Revert support for ACPI interface</div><div class='commit-msg'>This reverts commit 13bed58ce874 (regulator: fixed: add support for ACPI
interface).

While there does appear to be a practical need to manage regulators on ACPI
systems, using ad-hoc properties to describe regulators to the kernel presents
a number of problems (especially should ACPI gain first class support for such
things), and there are ongoing discussions as to how to manage this.

Until there is a rough consensus, revert commit 13bed58ce8748d43, which hasn't
been in a released kernel yet as discussed in [1] and the surrounding thread.

[1] http://lkml.kernel.org/r/20170125184949.x2wkoo7kbaaajkjk@sirena.org.uk

Signed-off-by: Mark Rutland &lt;mark.rutland@arm.com&gt;
Cc: Liam Girdwood &lt;lgirdwood@gmail.com&gt;
Cc: Lorenzo Pieralisi &lt;lorenzo.pieralisi@arm.com&gt;
Cc: Lu Baolu &lt;baolu.lu@linux.intel.com&gt;
Cc: Mark Brown &lt;broonie@kernel.org&gt;
Cc: Rafael J. Wysocki &lt;rafael@kernel.org&gt;
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Mark Brown &lt;broonie@kernel.org&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=1372cef1c697d8aac0cc923f8aa2c37d790ec9ed'>Diffstat</a> (limited to 'include')</div><table summary='diffstat' class='diffstat'>