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yaml --- r: 184651 b: refs/heads/master c: 87a1b26 h: refs/heads/master i: 184649: 90788ba 184647: 2183e6b v: v3
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Paul Walmsley
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Jan 29, 2010
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refs/heads/master: 49214640f52506fbba00eb998fc39f10653a840a | ||
refs/heads/master: 87a1b26c2d31dce62758b78c077ff5a1b5a52ab8 |
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/* | ||
* OMAP2xxx osc_clk-specific clock code | ||
* | ||
* Copyright (C) 2005-2008 Texas Instruments, Inc. | ||
* Copyright (C) 2004-2010 Nokia Corporation | ||
* | ||
* Contacts: | ||
* Richard Woodruff <r-woodruff2@ti.com> | ||
* Paul Walmsley | ||
* | ||
* Based on earlier work by Tuukka Tikkanen, Tony Lindgren, | ||
* Gordon McNutt and RidgeRun, Inc. | ||
* | ||
* 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. | ||
*/ | ||
#undef DEBUG | ||
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#include <linux/module.h> | ||
#include <linux/kernel.h> | ||
#include <linux/errno.h> | ||
#include <linux/clk.h> | ||
#include <linux/io.h> | ||
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#include <plat/clock.h> | ||
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#include "clock.h" | ||
#include "clock2xxx.h" | ||
#include "prm.h" | ||
#include "prm-regbits-24xx.h" | ||
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static int omap2_enable_osc_ck(struct clk *clk) | ||
{ | ||
u32 pcc; | ||
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pcc = __raw_readl(prcm_clksrc_ctrl); | ||
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__raw_writel(pcc & ~OMAP_AUTOEXTCLKMODE_MASK, prcm_clksrc_ctrl); | ||
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return 0; | ||
} | ||
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static void omap2_disable_osc_ck(struct clk *clk) | ||
{ | ||
u32 pcc; | ||
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pcc = __raw_readl(prcm_clksrc_ctrl); | ||
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__raw_writel(pcc | OMAP_AUTOEXTCLKMODE_MASK, prcm_clksrc_ctrl); | ||
} | ||
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const struct clkops clkops_oscck = { | ||
.enable = omap2_enable_osc_ck, | ||
.disable = omap2_disable_osc_ck, | ||
}; | ||
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unsigned long omap2_osc_clk_recalc(struct clk *clk) | ||
{ | ||
return omap2xxx_get_apll_clkin() * omap2xxx_get_sysclkdiv(); | ||
} | ||
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