diff options
| -rw-r--r-- | arch/arm/mach-omap2/Makefile | 3 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/clkt2xxx_sys.c | 50 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/clock2xxx.c | 30 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/clock2xxx.h | 3 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/clock2xxx_data.c | 4 |
5 files changed, 55 insertions, 35 deletions
diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile index 51178bff698c..7ce5fea7f2bc 100644 --- a/arch/arm/mach-omap2/Makefile +++ b/arch/arm/mach-omap2/Makefile @@ -13,7 +13,8 @@ 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_osc.o + clkt2xxx_apll.o clkt2xxx_osc.o \ + clkt2xxx_sys.o obj-$(CONFIG_ARCH_OMAP2) += $(omap-2-3-common) $(prcm-common) $(clock-common) \ $(clock-omap2xxx) diff --git a/arch/arm/mach-omap2/clkt2xxx_sys.c b/arch/arm/mach-omap2/clkt2xxx_sys.c new file mode 100644 index 000000000000..822b5a79f457 --- /dev/null +++ b/arch/arm/mach-omap2/clkt2xxx_sys.c @@ -0,0 +1,50 @@ +/* + * OMAP2xxx sys_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/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" + +void __iomem *prcm_clksrc_ctrl; + +u32 omap2xxx_get_sysclkdiv(void) +{ + u32 div; + + div = __raw_readl(prcm_clksrc_ctrl); + div &= OMAP_SYSCLKDIV_MASK; + div >>= OMAP_SYSCLKDIV_SHIFT; + + return div; +} + +unsigned long omap2xxx_sys_clk_recalc(struct clk *clk) +{ + return clk->parent->rate / omap2xxx_get_sysclkdiv(); +} + + diff --git a/arch/arm/mach-omap2/clock2xxx.c b/arch/arm/mach-omap2/clock2xxx.c index 62c3b022a1e9..b59cb1d2bf55 100644 --- a/arch/arm/mach-omap2/clock2xxx.c +++ b/arch/arm/mach-omap2/clock2xxx.c @@ -46,8 +46,6 @@ struct clk *vclk, *sclk, *dclk; -void __iomem *prcm_clksrc_ctrl; - /*------------------------------------------------------------------------- * Omap24xx specific clock functions *-------------------------------------------------------------------------*/ @@ -79,34 +77,6 @@ const struct clkops clkops_omap2430_i2chs_wait = { .find_companion = omap2_clk_dflt_find_companion, }; -#ifdef OLD_CK -/* Recalculate SYST_CLK */ -static void omap2_sys_clk_recalc(struct clk *clk) -{ - u32 div = PRCM_CLKSRC_CTRL; - div &= (1 << 7) | (1 << 6); /* Test if ext clk divided by 1 or 2 */ - div >>= clk->rate_offset; - clk->rate = (clk->parent->rate / div); - propagate_rate(clk); -} -#endif /* OLD_CK */ - -u32 omap2xxx_get_sysclkdiv(void) -{ - u32 div; - - div = __raw_readl(prcm_clksrc_ctrl); - div &= OMAP_SYSCLKDIV_MASK; - div >>= OMAP_SYSCLKDIV_SHIFT; - - return div; -} - -unsigned long omap2_sys_clk_recalc(struct clk *clk) -{ - return clk->parent->rate / omap2xxx_get_sysclkdiv(); -} - /* * Set clocks for bypass mode for reboot to work. */ diff --git a/arch/arm/mach-omap2/clock2xxx.h b/arch/arm/mach-omap2/clock2xxx.h index 3b0610dbbd37..c14061b2b9f1 100644 --- a/arch/arm/mach-omap2/clock2xxx.h +++ b/arch/arm/mach-omap2/clock2xxx.h @@ -11,9 +11,8 @@ unsigned long omap2_table_mpu_recalc(struct clk *clk); int omap2_select_table_rate(struct clk *clk, unsigned long rate); long omap2_round_to_table_rate(struct clk *clk, unsigned long rate); -unsigned long omap2_sys_clk_recalc(struct clk *clk); +unsigned long omap2xxx_sys_clk_recalc(struct clk *clk); unsigned long omap2_osc_clk_recalc(struct clk *clk); -unsigned long omap2_sys_clk_recalc(struct clk *clk); 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); diff --git a/arch/arm/mach-omap2/clock2xxx_data.c b/arch/arm/mach-omap2/clock2xxx_data.c index 402115fa9c12..3a435bb8f029 100644 --- a/arch/arm/mach-omap2/clock2xxx_data.c +++ b/arch/arm/mach-omap2/clock2xxx_data.c @@ -79,7 +79,7 @@ static struct clk sys_ck = { /* (*12, *13, 19.2, 26, 38.4)MHz */ .ops = &clkops_null, .parent = &osc_ck, .clkdm_name = "wkup_clkdm", - .recalc = &omap2_sys_clk_recalc, + .recalc = &omap2xxx_sys_clk_recalc, }; static struct clk alt_ck = { /* Typical 54M or 48M, may not exist */ @@ -2264,7 +2264,7 @@ int __init omap2_clk_init(void) osc_ck.rate = omap2_osc_clk_recalc(&osc_ck); propagate_rate(&osc_ck); - sys_ck.rate = omap2_sys_clk_recalc(&sys_ck); + sys_ck.rate = omap2xxx_sys_clk_recalc(&sys_ck); propagate_rate(&sys_ck); for (c = omap24xx_clks; c < omap24xx_clks + ARRAY_SIZE(omap24xx_clks); c++) |