/* * Copyright (C) 1999 ARM Limited * Copyright (C) 2000 Deep Blue Solutions Ltd * Copyright 2006-2007,2010 Freescale Semiconductor, Inc. All Rights Reserved. * Copyright 2008 Juergen Beisert, kernel@pengutronix.de * Copyright 2009 Ilya Yanok, Emcraft Systems Ltd, yanok@emcraft.com * Copyright (C) 2011 Wolfram Sang, Pengutronix e.K. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. */ #include #include #include #include #include #include #define STMP_MODULE_CLKGATE (1 << 30) #define STMP_MODULE_SFTRST (1 << 31) /* * Clear the bit and poll it cleared. This is usually called with * a reset address and mask being either SFTRST(bit 31) or CLKGATE * (bit 30). */ static int stmp_clear_poll_bit(void __iomem *addr, u32 mask) { int timeout = 0x400; writel(mask, addr + STMP_OFFSET_REG_CLR); udelay(1); while ((readl(addr) & mask) && --timeout) /* nothing */; return !timeout; } int stmp_reset_block(void __iomem *reset_addr) { int ret; int timeout = 0x400; /* clear and poll SFTRST */ ret = stmp_clear_poll_bit(reset_addr, STMP_MODULE_SFTRST); if (unlikely(ret)) goto error; /* clear CLKGATE */ writel(STMP_MODULE_CLKGATE, reset_addr + STMP_OFFSET_REG_CLR); /* set SFTRST to reset the block */ writel(STMP_MODULE_SFTRST, reset_addr + STMP_OFFSET_REG_SET); udelay(1); /* poll CLKGATE becoming set */ while ((!(readl(reset_addr) & STMP_MODULE_CLKGATE)) && --timeout) /* nothing */; if (unlikely(!timeout)) goto error; /* clear and poll SFTRST */ ret = stmp_clear_poll_bit(reset_addr, STMP_MODULE_SFTRST); if (unlikely(ret)) goto error; /* clear and poll CLKGATE */ ret = stmp_clear_poll_bit(reset_addr, STMP_MODULE_CLKGATE); if (unlikely(ret)) goto error; return 0; error: pr_err("%s(%p): module reset timeout\n", __func__, reset_addr); return -ETIMEDOUT; } EXPORT_SYMBOL(stmp_reset_block); rs'>
path: root/drivers
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authorAxel Köllhofer <AxelKoellhofer@web.de>2017-01-17 18:18:54 -0500
committerKalle Valo <kvalo@codeaurora.org>2017-01-20 11:49:01 +0200
commit66dfa26ebca8de9764190fed6ef509cd2b514c74 (patch)
tree70a2bb749a0c4bc9cde88e8baabde7a136fce104 /drivers
parentc14239f23adb80aa2532909e312986317ba3cd09 (diff)
rtl8xxxu: Add USB ID for D-Link DWA-131 rev E1 (rtl8192eu)
This was tested by David Patiño. Reported-by: David Patiño <davidpatino82@gmail.com> Signed-off-by: Axel Köllhofer <AxelKoellhofer@web.de> Signed-off-by: Jes Sorensen <Jes.Sorensen@gmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c