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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
- #include <linux/module.h>
- #include <linux/kernel.h>
- #include <linux/errno.h>
- #include <linux/clk.h>
- #include <linux/io.h>
- #include <plat/clock.h>
- #include "clock.h"
- #include "clock2xxx.h"
- #include "prm.h"
- #include "prm-regbits-24xx.h"
- static int omap2_enable_osc_ck(struct clk *clk)
- {
- u32 pcc;
- pcc = __raw_readl(prcm_clksrc_ctrl);
- __raw_writel(pcc & ~OMAP_AUTOEXTCLKMODE_MASK, prcm_clksrc_ctrl);
- return 0;
- }
- static void omap2_disable_osc_ck(struct clk *clk)
- {
- u32 pcc;
- pcc = __raw_readl(prcm_clksrc_ctrl);
- __raw_writel(pcc | OMAP_AUTOEXTCLKMODE_MASK, prcm_clksrc_ctrl);
- }
- const struct clkops clkops_oscck = {
- .enable = omap2_enable_osc_ck,
- .disable = omap2_disable_osc_ck,
- };
- unsigned long omap2_osc_clk_recalc(struct clk *clk)
- {
- return omap2xxx_get_apll_clkin() * omap2xxx_get_sysclkdiv();
- }
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