/*
 * 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;
}
>commit</a><a href='/cgit.cgi/linux/net-next.git/diff/drivers/usb/host/imx21-dbg.c?id=9587a01a7ead9efc5032c16e0d9668de58be1186'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/drivers/usb/host/imx21-dbg.c'>
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/log/?id=9587a01a7ead9efc5032c16e0d9668de58be1186'>root</a>/<a href='/cgit.cgi/linux/net-next.git/log/drivers?id=9587a01a7ead9efc5032c16e0d9668de58be1186'>drivers</a>/<a href='/cgit.cgi/linux/net-next.git/log/drivers/usb?id=9587a01a7ead9efc5032c16e0d9668de58be1186'>usb</a>/<a href='/cgit.cgi/linux/net-next.git/log/drivers/usb/host?id=9587a01a7ead9efc5032c16e0d9668de58be1186'>host</a>/<a href='/cgit.cgi/linux/net-next.git/log/drivers/usb/host/imx21-dbg.c?id=9587a01a7ead9efc5032c16e0d9668de58be1186'>imx21-dbg.c</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/cgit.cgi/linux/net-next.git/log/drivers/usb/host/imx21-dbg.c?id=9587a01a7ead9efc5032c16e0d9668de58be1186&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th><th class='left'>Files</th><th class='left'>Lines</th></tr>
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<tr><th>author</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-02-08 12:23:49 -0800</td></tr>
<tr><th>committer</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-02-08 12:23:49 -0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/serial/pl2303.h?id=be11f436a80b19cb5ef4cdfba7371a5178bd43cd'>be11f436a80b19cb5ef4cdfba7371a5178bd43cd</a> (<a href='/cgit.cgi/linux/net-next.git/patch/drivers/usb/serial/pl2303.h?id=be11f436a80b19cb5ef4cdfba7371a5178bd43cd'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=be11f436a80b19cb5ef4cdfba7371a5178bd43cd'>757250a0fe53c3947d9f244ffb04e51b53d13143</a> /<a href='/cgit.cgi/linux/net-next.git/tree/drivers/usb/serial/pl2303.h?id=be11f436a80b19cb5ef4cdfba7371a5178bd43cd'>drivers/usb/serial/pl2303.h</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/serial/pl2303.h?id=472ff5be61f9593ee2d3ebbd716768e14de4659d'>472ff5be61f9593ee2d3ebbd716768e14de4659d</a> (<a href='/cgit.cgi/linux/net-next.git/diff/drivers/usb/serial/pl2303.h?id=be11f436a80b19cb5ef4cdfba7371a5178bd43cd&amp;id2=472ff5be61f9593ee2d3ebbd716768e14de4659d'>diff</a>)</td></tr><tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/serial/pl2303.h?id=d98e0929071e7ef63d35c1838b0ad0805ae366dd'>d98e0929071e7ef63d35c1838b0ad0805ae366dd</a> (<a href='/cgit.cgi/linux/net-next.git/diff/drivers/usb/serial/pl2303.h?id=be11f436a80b19cb5ef4cdfba7371a5178bd43cd&amp;id2=d98e0929071e7ef63d35c1838b0ad0805ae366dd'>diff</a>)</td></tr></table>
<div class='commit-subject'>Merge tag 'pci-v4.10-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci</div><div class='commit-msg'>Pull PCI fixes from Bjorn Helgaas:

 - check MSI affinity vs. number of vectors to avoid memory corruption

 - drop runtime power management for PCIe hotplug ports for now to avoid
   regressing hotplug via sysfs

* tag 'pci-v4.10-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
  Revert "PCI: pciehp: Add runtime PM support for PCIe hotplug ports"
  PCI/MSI: Don't apply affinity if there aren't enough vectors left
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=be11f436a80b19cb5ef4cdfba7371a5178bd43cd'>Diffstat</a> (limited to 'drivers/usb/serial/pl2303.h')</div><table summary='diffstat' class='diffstat'>