diff options
| -rw-r--r-- | arch/arm/mach-omap2/Makefile | 2 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/clkt2xxx_osc.c | 62 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/clock2xxx.c | 34 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/clock2xxx.h | 1 |
4 files changed, 66 insertions, 33 deletions
diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile index 825c303..51178bf 100644 --- a/arch/arm/mach-omap2/Makefile +++ b/arch/arm/mach-omap2/Makefile @@ -13,7 +13,7 @@ clock-common = clock.o clock_common_data.o \ clkt_clksel.o clock-omap2xxx = clkt2xxx_dpllcore.o \ clkt2xxx_virt_prcm_set.o \ - clkt2xxx_apll.o + clkt2xxx_apll.o clkt2xxx_osc.o obj-$(CONFIG_ARCH_OMAP2) += $(omap-2-3-common) $(prcm-common) $(clock-common) \ $(clock-omap2xxx) diff --git a/arch/arm/mach-omap2/clkt2xxx_osc.c b/arch/arm/mach-omap2/clkt2xxx_osc.c new file mode 100644 index 0000000..2167be8 --- /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(); +} + diff --git a/arch/arm/mach-omap2/clock2xxx.c b/arch/arm/mach-omap2/clock2xxx.c index 88077e7..62c3b02 100644 --- a/arch/arm/mach-omap2/clock2xxx.c +++ b/arch/arm/mach-omap2/clock2xxx.c @@ -79,31 +79,6 @@ const struct clkops clkops_omap2430_i2chs_wait = { .find_companion = omap2_clk_dflt_find_companion, }; -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, -}; - #ifdef OLD_CK /* Recalculate SYST_CLK */ static void omap2_sys_clk_recalc(struct clk *clk) @@ -116,7 +91,7 @@ static void omap2_sys_clk_recalc(struct clk *clk) } #endif /* OLD_CK */ -static u32 omap2_get_sysclkdiv(void) +u32 omap2xxx_get_sysclkdiv(void) { u32 div; @@ -127,14 +102,9 @@ static u32 omap2_get_sysclkdiv(void) return div; } -unsigned long omap2_osc_clk_recalc(struct clk *clk) -{ - return omap2xxx_get_apll_clkin() * omap2_get_sysclkdiv(); -} - unsigned long omap2_sys_clk_recalc(struct clk *clk) { - return clk->parent->rate / omap2_get_sysclkdiv(); + return clk->parent->rate / omap2xxx_get_sysclkdiv(); } /* diff --git a/arch/arm/mach-omap2/clock2xxx.h b/arch/arm/mach-omap2/clock2xxx.h index 3f1672e..3b0610d 100644 --- a/arch/arm/mach-omap2/clock2xxx.h +++ b/arch/arm/mach-omap2/clock2xxx.h @@ -18,6 +18,7 @@ unsigned long omap2_dpllcore_recalc(struct clk *clk); int omap2_reprogram_dpllcore(struct clk *clk, unsigned long rate); unsigned long omap2xxx_clk_get_core_rate(struct clk *clk); u32 omap2xxx_get_apll_clkin(void); +u32 omap2xxx_get_sysclkdiv(void); /* REVISIT: These should be set dynamically for CONFIG_MULTI_OMAP2 */ #ifdef CONFIG_ARCH_OMAP2420 |