diff options
author | Russell King <rmk+kernel@arm.linux.org.uk> | 2010-03-08 23:21:04 +0300 |
---|---|---|
committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2010-03-08 23:21:04 +0300 |
commit | 988addf82e4c03739375279de73929580a2d4a6a (patch) | |
tree | 989ae1cd4e264bbad80c65f04480486246e7b9f3 /arch/arm/mach-omap2/clkt2xxx_osc.c | |
parent | 004c1c7096659d352b83047a7593e91d8a30e3c5 (diff) | |
parent | 25cf84cf377c0aae5dbcf937ea89bc7893db5176 (diff) | |
download | linux-988addf82e4c03739375279de73929580a2d4a6a.tar.xz |
Merge branch 'origin' into devel-stable
Conflicts:
arch/arm/mach-mx2/devices.c
arch/arm/mach-mx2/devices.h
sound/soc/pxa/pxa-ssp.c
Diffstat (limited to 'arch/arm/mach-omap2/clkt2xxx_osc.c')
-rw-r--r-- | arch/arm/mach-omap2/clkt2xxx_osc.c | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/clkt2xxx_osc.c b/arch/arm/mach-omap2/clkt2xxx_osc.c new file mode 100644 index 000000000000..2167be84a5bc --- /dev/null +++ b/arch/arm/mach-omap2/clkt2xxx_osc.c @@ -0,0 +1,62 @@ +/* + * 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(); +} + |