/* * Copyright (C) 2014 Marvell * Author: Gregory CLEMENT * * 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 #include #include #include #include #include #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; } move&id=3c223c19aea85d3dda1416c187915f4a30b04b1f'>treecommitdiff
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authorMarkus Mayer <mmayer@broadcom.com>2016-12-19 12:10:28 -0800
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2017-01-27 11:43:49 +0100
commit3c223c19aea85d3dda1416c187915f4a30b04b1f (patch)
tree2d2021f8161db3e9ed38b9a966a225b66dff8e58 /kernel/trace/trace_events.c
parent9b02c54bc951fca884ba5719f42a27e8240965bf (diff)
cpufreq: brcmstb-avs-cpufreq: properly retrieve P-state upon suspend
The AVS GET_PMAP command does return a P-state along with the P-map information. However, that P-state is the initial P-state when the P-map was first downloaded to AVS. It is *not* the current P-state. Therefore, we explicitly retrieve the P-state using the GET_PSTATE command. Signed-off-by: Markus Mayer <mmayer@broadcom.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'kernel/trace/trace_events.c')