Most of the dpll api's from dpll.c are reused for OMAP4. This patch does extend a few api's for OMAP4 support.
Signed-off-by: Rajendra Nayak <[email protected]> Cc: Paul Walmsley <[email protected]> Cc: Benoit Cousson <[email protected]> --- arch/arm/mach-omap2/Makefile | 4 +++- arch/arm/mach-omap2/clock.c | 5 +++++ arch/arm/mach-omap2/clock.h | 6 ++++++ arch/arm/mach-omap2/clock44xx.c | 25 ------------------------- arch/arm/mach-omap2/dpll.c | 22 ++++++++++++++-------- 5 files changed, 28 insertions(+), 34 deletions(-) diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile index 59a568c..ece0d18 100644 --- a/arch/arm/mach-omap2/Makefile +++ b/arch/arm/mach-omap2/Makefile @@ -7,12 +7,14 @@ obj-y := id.o io.o control.o mux.o devices.o serial.o gpmc.o timer-gp.o prcm.o \ clock.o omap-2-3-common = irq.o sdrc.o omap_hwmod.o +omap-3-4-common = dpll.o prcm-common = powerdomain.o clock-common = clockdomain.o obj-$(CONFIG_ARCH_OMAP2) += $(omap-2-3-common) $(prcm-common) $(clock-common) obj-$(CONFIG_ARCH_OMAP3) += $(omap-2-3-common) $(prcm-common) $(clock-common) \ - dpll.o + $(omap-3-4-common) +obj-$(CONFIG_ARCH_OMAP4) += $(omap-3-4-common) obj-$(CONFIG_OMAP_MCBSP) += mcbsp.o diff --git a/arch/arm/mach-omap2/clock.c b/arch/arm/mach-omap2/clock.c index adf1a78..88b53b9 100644 --- a/arch/arm/mach-omap2/clock.c +++ b/arch/arm/mach-omap2/clock.c @@ -249,6 +249,11 @@ u32 omap2_get_dpll_rate(struct clk *clk) if (v == OMAP3XXX_EN_DPLL_LPBYPASS || v == OMAP3XXX_EN_DPLL_FRBYPASS) return dd->clk_bypass->rate; + } else if (cpu_is_omap44xx()) { + if (v == OMAP4XXX_EN_DPLL_LPBYPASS || + v == OMAP4XXX_EN_DPLL_FRBYPASS || + v == OMAP4XXX_EN_DPLL_MNBYPASS) + return dd->clk_bypass->rate; } v = __raw_readl(dd->mult_div1_reg); diff --git a/arch/arm/mach-omap2/clock.h b/arch/arm/mach-omap2/clock.h index bc24687..29e6a1a 100644 --- a/arch/arm/mach-omap2/clock.h +++ b/arch/arm/mach-omap2/clock.h @@ -36,6 +36,12 @@ #define OMAP3XXX_EN_DPLL_FRBYPASS 0x6 #define OMAP3XXX_EN_DPLL_LOCKED 0x7 +/* OMAP4xxx CM_CLKMODE_DPLL*.EN_*_DPLL bits - for omap2_get_dpll_rate() */ +#define OMAP4XXX_EN_DPLL_MNBYPASS 0x4 +#define OMAP4XXX_EN_DPLL_LPBYPASS 0x5 +#define OMAP4XXX_EN_DPLL_FRBYPASS 0x6 +#define OMAP4XXX_EN_DPLL_LOCKED 0x7 + /* CM_CLKEN_PLL*.EN* bit values - not all are available for every DPLL */ #define DPLL_LOW_POWER_STOP 0x1 #define DPLL_LOW_POWER_BYPASS 0x5 diff --git a/arch/arm/mach-omap2/clock44xx.c b/arch/arm/mach-omap2/clock44xx.c index 785cdeb..8b38aa2 100644 --- a/arch/arm/mach-omap2/clock44xx.c +++ b/arch/arm/mach-omap2/clock44xx.c @@ -246,31 +246,6 @@ static struct clk_functions omap2_clk_functions = { .clk_disable_unused = omap2_clk_disable_unused, }; -/* - * Dummy functions for DPLL control. Plan is to re-use - * existing OMAP3 dpll control functions. - */ - -unsigned long omap3_dpll_recalc(struct clk *clk) -{ - return 0; -} - -int omap3_noncore_dpll_set_rate(struct clk *clk, unsigned long rate) -{ - return 0; -} - -int omap3_noncore_dpll_enable(struct clk *clk) -{ - return 0; -} - -void omap3_noncore_dpll_disable(struct clk *clk) -{ - return; -} - static const struct clkops clkops_noncore_dpll_ops = { .enable = &omap3_noncore_dpll_enable, .disable = &omap3_noncore_dpll_disable, diff --git a/arch/arm/mach-omap2/dpll.c b/arch/arm/mach-omap2/dpll.c index 3e1378f..273348e 100644 --- a/arch/arm/mach-omap2/dpll.c +++ b/arch/arm/mach-omap2/dpll.c @@ -318,10 +318,12 @@ int omap3_noncore_dpll_program(struct clk *clk, u16 m, u8 n, u16 freqsel) _omap3_noncore_dpll_bypass(clk); /* Set jitter correction */ - v = __raw_readl(dd->control_reg); - v &= ~dd->freqsel_mask; - v |= freqsel << __ffs(dd->freqsel_mask); - __raw_writel(v, dd->control_reg); + if (!cpu_is_omap44xx()) { + v = __raw_readl(dd->control_reg); + v &= ~dd->freqsel_mask; + v |= freqsel << __ffs(dd->freqsel_mask); + __raw_writel(v, dd->control_reg); + } /* Set DPLL multiplier, divider */ v = __raw_readl(dd->mult_div1_reg); @@ -353,7 +355,7 @@ int omap3_noncore_dpll_program(struct clk *clk, u16 m, u8 n, u16 freqsel) int omap3_noncore_dpll_set_rate(struct clk *clk, unsigned long rate) { struct clk *new_parent = NULL; - u16 freqsel; + u16 freqsel = 0; struct dpll_data *dd; int ret; @@ -389,9 +391,13 @@ int omap3_noncore_dpll_set_rate(struct clk *clk, unsigned long rate) if (dd->last_rounded_rate == 0) return -EINVAL; - freqsel = _omap3_dpll_compute_freqsel(clk, dd->last_rounded_n); - if (!freqsel) - WARN_ON(1); + /* No freqsel on OMAP4 */ + if (!cpu_is_omap44xx()) { + freqsel = _omap3_dpll_compute_freqsel(clk, + dd->last_rounded_n); + if (!freqsel) + WARN_ON(1); + } pr_debug("clock: %s: set rate: locking rate to %lu.\n", clk->name, rate); -- 1.5.4.7 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
