diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-omap2/Makefile | 2 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/clock.c | 2 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/clock24xx.c | 319 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/clock24xx.h | 320 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/memory.c | 48 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/memory.h | 2 | ||||
| -rw-r--r-- | arch/arm/plat-omap/clock.c | 42 |
7 files changed, 509 insertions, 226 deletions
diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile index be2b671..a3b2507 100644 --- a/arch/arm/mach-omap2/Makefile +++ b/arch/arm/mach-omap2/Makefile @@ -3,7 +3,7 @@ # # Common support -obj-y := irq.o id.o io.o sram-fn.o memory.o control.o prcm.o mux.o \ +obj-y := irq.o id.o io.o sram-fn.o memory.o control.o prcm.o clock.o mux.o \ devices.o serial.o gpmc.o timer-gp.o # Power Management diff --git a/arch/arm/mach-omap2/clock.c b/arch/arm/mach-omap2/clock.c index a921efd..b76c9fc 100644 --- a/arch/arm/mach-omap2/clock.c +++ b/arch/arm/mach-omap2/clock.c @@ -122,7 +122,7 @@ u32 omap2_get_dpll_rate(struct clk *clk) if (dd->div2_reg) { dpll = __raw_readl(dd->div2_reg); dpll_div = dpll & dd->div2_mask; - dpll_div >>= __fss(dd->div2_mask); + dpll_div >>= __ffs(dd->div2_mask); do_div(dpll_clk, dpll_div + 1); } diff --git a/arch/arm/mach-omap2/clock24xx.c b/arch/arm/mach-omap2/clock24xx.c index 5c24781..c3ccac1 100644 --- a/arch/arm/mach-omap2/clock24xx.c +++ b/arch/arm/mach-omap2/clock24xx.c @@ -15,6 +15,8 @@ * 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/device.h> @@ -23,29 +25,64 @@ #include <linux/delay.h> #include <linux/clk.h> -#include <asm/io.h> +#include <linux/io.h> +#include <linux/cpufreq.h> #include <asm/arch/clock.h> #include <asm/arch/sram.h> #include <asm/div64.h> +#include <asm/bitops.h> -#include "prcm-regs.h" #include "memory.h" +#include "clock.h" #include "clock24xx.h" +#include "prm.h" +#include "prm-regbits-24xx.h" +#include "cm.h" +#include "cm-regbits-24xx.h" -#undef DEBUG +/* CM_CLKEN_PLL.EN_{54,96}M_PLL options (24XX) */ +#define EN_APLL_STOPPED 0 +#define EN_APLL_LOCKED 3 -//#define DOWN_VARIABLE_DPLL 1 /* Experimental */ +/* CM_CLKSEL1_PLL.APLLS_CLKIN options (24XX) */ +#define APLLS_CLKIN_19_2MHZ 0 +#define APLLS_CLKIN_13MHZ 2 +#define APLLS_CLKIN_12MHZ 3 + +/* #define DOWN_VARIABLE_DPLL 1 */ /* Experimental */ static struct prcm_config *curr_prcm_set; -static u32 curr_perf_level = PRCM_FULL_SPEED; static struct clk *vclk; static struct clk *sclk; /*------------------------------------------------------------------------- - * Omap2 specific clock functions + * Omap24xx specific clock functions *-------------------------------------------------------------------------*/ +static int omap2_enable_osc_ck(struct clk *clk) +{ + u32 pcc; + + pcc = __raw_readl(OMAP24XX_PRCM_CLKSRC_CTRL); + + __raw_writel(pcc & ~OMAP_AUTOEXTCLKMODE_MASK, + OMAP24XX_PRCM_CLKSRC_CTRL); + + return 0; +} + +static void omap2_disable_osc_ck(struct clk *clk) +{ + u32 pcc; + + pcc = __raw_readl(OMAP24XX_PRCM_CLKSRC_CTRL); + + __raw_writel(pcc | OMAP_AUTOEXTCLKMODE_MASK, + OMAP24XX_PRCM_CLKSRC_CTRL); +} + +#ifdef OLD_CK /* Recalculate SYST_CLK */ static void omap2_sys_clk_recalc(struct clk * clk) { @@ -55,17 +92,18 @@ static void omap2_sys_clk_recalc(struct clk * clk) clk->rate = (clk->parent->rate / div); propagate_rate(clk); } +#endif /* OLD_CK */ -static u32 omap2_get_dpll_rate(struct clk * tclk) +/* This actually returns the rate of core_ck, not dpll_ck. */ +static u32 omap2_get_dpll_rate_24xx(struct clk *tclk) { long long dpll_clk; - int dpll_mult, dpll_div, amult; + u8 amult; + + dpll_clk = omap2_get_dpll_rate(tclk); - dpll_mult = (CM_CLKSEL1_PLL >> 12) & 0x03ff; /* 10 bits */ - dpll_div = (CM_CLKSEL1_PLL >> 8) & 0x0f; /* 4 bits */ - dpll_clk = (long long)tclk->parent->rate * dpll_mult; - do_div(dpll_clk, dpll_div + 1); - amult = CM_CLKSEL2_PLL & 0x3; + amult = cm_read_mod_reg(PLL_MOD, CM_CLKSEL2); + amult &= OMAP24XX_CORE_CLK_SRC_MASK; dpll_clk *= amult; return dpll_clk; @@ -84,6 +122,7 @@ static void omap2_propagate_rate(struct clk * clk) propagate_rate(clk); } +#ifdef OLD_CK static void omap2_set_osc_ck(int enable) { if (enable) @@ -91,39 +130,40 @@ static void omap2_set_osc_ck(int enable) else PRCM_CLKSRC_CTRL |= 0x3 << 3; } +#endif /* OLD_CK */ /* Enable an APLL if off */ -static void omap2_clk_fixed_enable(struct clk *clk) +static int omap2_clk_fixed_enable(struct clk *clk) { - u32 cval, i=0; + u32 cval, apll_mask; - if (clk->enable_bit == 0xff) /* Parent will do it */ - return; + apll_mask = EN_APLL_LOCKED << clk->enable_bit; - cval = CM_CLKEN_PLL; + cval = cm_read_mod_reg(PLL_MOD, CM_CLKEN); - if ((cval & (0x3 << clk->enable_bit)) == (0x3 << clk->enable_bit)) - return; + if ((cval & apll_mask) == apll_mask) + return 0; /* apll already enabled */ - cval &= ~(0x3 << clk->enable_bit); - cval |= (0x3 << clk->enable_bit); - CM_CLKEN_PLL = cval; + cval &= ~apll_mask; + cval |= apll_mask; + cm_write_mod_reg(cval, PLL_MOD, CM_CLKEN); if (clk == &apll96_ck) - cval = (1 << 8); + cval = OMAP24XX_ST_96M_APLL; else if (clk == &apll54_ck) - cval = (1 << 6); + cval = OMAP24XX_ST_54M_APLL; - while (!(CM_IDLEST_CKGEN & cval)) { /* Wait for lock */ - ++i; - udelay(1); - if (i == 100000) { - printk(KERN_ERR "Clock %s didn't lock\n", clk->name); - break; - } - } + omap2_wait_clock_ready(OMAP_CM_REGADDR(PLL_MOD, CM_IDLEST), cval, + clk->name); + + /* + * REVISIT: Should we return an error code if omap2_wait_clock_ready() + * fails? + */ + return 0; } +#ifdef OLD_CK static void omap2_clk_wait_ready(struct clk *clk) { unsigned long reg, other_reg, st_reg; @@ -199,20 +239,19 @@ static int _omap2_clk_enable(struct clk * clk) return 0; } +#endif /* OLD_CK */ /* Stop APLL */ static void omap2_clk_fixed_disable(struct clk *clk) { u32 cval; - if(clk->enable_bit == 0xff) /* let parent off do it */ - return; - - cval = CM_CLKEN_PLL; - cval &= ~(0x3 << clk->enable_bit); - CM_CLKEN_PLL = cval; + cval = cm_read_mod_reg(PLL_MOD, CM_CLKEN); + cval &= ~(EN_APLL_LOCKED << clk->enable_bit); + cm_write_mod_reg(cval, PLL_MOD, CM_CLKEN); } +#ifdef OLD_CK /* Disables clock without considering parent dependencies or use count */ static void _omap2_clk_disable(struct clk *clk) { @@ -269,6 +308,7 @@ static void omap2_clk_disable(struct clk *clk) omap2_clk_disable(clk->parent); } } +#endif /* OLD_CK */ /* * Uses the current prcm set to tell if a rate is valid. @@ -276,9 +316,12 @@ static void omap2_clk_disable(struct clk *clk) */ static u32 omap2_dpll_round_rate(unsigned long target_rate) { - u32 high, low; + u32 high, low, core_clk_src; - if ((CM_CLKSEL2_PLL & 0x3) == 1) { /* DPLL clockout */ + core_clk_src = cm_read_mod_reg(PLL_MOD, CM_CLKSEL2); + core_clk_src &= OMAP24XX_CORE_CLK_SRC_MASK; + + if (core_clk_src == CORE_CLK_SRC_DPLL) { /* DPLL clockout */ high = curr_prcm_set->dpll_speed * 2; low = curr_prcm_set->dpll_speed; } else { /* DPLL clockout x 2 */ @@ -300,6 +343,7 @@ static u32 omap2_dpll_round_rate(unsigned long target_rate) } +#ifdef OLD_CK /* * Used for clocks that are part of CLKSEL_xyz governed clocks. * REVISIT: Maybe change to use clk->enable() functions like on omap1? @@ -486,55 +530,72 @@ static u32 omap2_reprogram_sdrc(u32 level, u32 force) return prev; } +#endif /* OLD_CK */ + +static void omap2_dpll_recalc(struct clk *clk) +{ + clk->rate = omap2_get_dpll_rate_24xx(clk); + + propagate_rate(clk); +} -static int omap2_reprogram_dpll(struct clk * clk, unsigned long rate) +static int omap2_reprogram_dpll(struct clk *clk, unsigned long rate) { - u32 flags, cur_rate, low, mult, div, valid_rate, done_rate; + u32 cur_rate, low, mult, div, valid_rate, done_rate; u32 bypass = 0; struct prcm_config tmpset; + const struct dpll_data *dd; + unsigned long flags; int ret = -EINVAL; local_irq_save(flags); - cur_rate = omap2_get_dpll_rate(&dpll_ck); - mult = CM_CLKSEL2_PLL & 0x3; + cur_rate = omap2_get_dpll_rate_24xx(&dpll_ck); + mult = cm_read_mod_reg(PLL_MOD, CM_CLKSEL2); + mult &= OMAP24XX_CORE_CLK_SRC_MASK; if ((rate == (cur_rate / 2)) && (mult == 2)) { - omap2_reprogram_sdrc(PRCM_HALF_SPEED, 1); + omap2_reprogram_sdrc(CORE_CLK_SRC_DPLL, 1); } else if ((rate == (cur_rate * 2)) && (mult == 1)) { - omap2_reprogram_sdrc(PRCM_FULL_SPEED, 1); + omap2_reprogram_sdrc(CORE_CLK_SRC_DPLL_X2, 1); } else if (rate != cur_rate) { valid_rate = omap2_dpll_round_rate(rate); if (valid_rate != rate) goto dpll_exit; - if ((CM_CLKSEL2_PLL & 0x3) == 1) + if (mult == 1) low = curr_prcm_set->dpll_speed; else low = curr_prcm_set->dpll_speed / 2; - tmpset.cm_clksel1_pll = CM_CLKSEL1_PLL; - tmpset.cm_clksel1_pll &= ~(0x3FFF << 8); + dd = clk->dpll_data; + if (!dd) + goto dpll_exit; + + tmpset.cm_clksel1_pll = __raw_readl(dd->mult_div1_reg); + tmpset.cm_clksel1_pll &= ~(dd->mult_mask | + dd->div1_mask); div = ((curr_prcm_set->xtal_speed / 1000000) - 1); - tmpset.cm_clksel2_pll = CM_CLKSEL2_PLL; - tmpset.cm_clksel2_pll &= ~0x3; + tmpset.cm_clksel2_pll = cm_read_mod_reg(PLL_MOD, CM_CLKSEL2); + tmpset.cm_clksel2_pll &= ~OMAP24XX_CORE_CLK_SRC_MASK; if (rate > low) { - tmpset.cm_clksel2_pll |= 0x2; + tmpset.cm_clksel2_pll |= CORE_CLK_SRC_DPLL_X2; mult = ((rate / 2) / 1000000); - done_rate = PRCM_FULL_SPEED; + done_rate = CORE_CLK_SRC_DPLL_X2; } else { - tmpset.cm_clksel2_pll |= 0x1; + tmpset.cm_clksel2_pll |= CORE_CLK_SRC_DPLL; mult = (rate / 1000000); - done_rate = PRCM_HALF_SPEED; + done_rate = CORE_CLK_SRC_DPLL; } - tmpset.cm_clksel1_pll |= ((div << 8) | (mult << 12)); + tmpset.cm_clksel1_pll |= (div << __ffs(dd->mult_mask)); + tmpset.cm_clksel1_pll |= (mult << __ffs(dd->div1_mask)); /* Worst case */ - tmpset.base_sdrc_rfr = V24XX_SDRC_RFR_CTRL_BYPASS; + tmpset.base_sdrc_rfr = SDRC_RFR_CTRL_BYPASS; if (rate == curr_prcm_set->xtal_speed) /* If asking for 1-1 */ bypass = 1; - omap2_reprogram_sdrc(PRCM_FULL_SPEED, 1); /* For init_mem */ + omap2_reprogram_sdrc(CORE_CLK_SRC_DPLL_X2, 1); /* For init_mem */ /* Force dll lock mode */ omap2_set_prcm(tmpset.cm_clksel1_pll, tmpset.base_sdrc_rfr, @@ -544,7 +605,7 @@ static int omap2_reprogram_dpll(struct clk * clk, unsigned long rate) omap2_init_memory_params(omap2_dll_force_needed()); omap2_reprogram_sdrc(done_rate, 0); } - omap2_clksel_recalc(&dpll_ck); + omap2_dpll_recalc(&dpll_ck); ret = 0; dpll_exit: @@ -552,8 +613,13 @@ dpll_exit: return(ret); } -/* Just return the MPU speed */ -static void omap2_mpu_recalc(struct clk * clk) +/** + * omap2_table_mpu_recalc - just return the MPU speed + * @clk: virt_prcm_set struct clk + * + * Set virt_prcm_set's rate to the mpu_speed field of the current PRCM set. + */ +static void omap2_table_mpu_recalc(struct clk *clk) { clk->rate = curr_prcm_set->mpu_speed; } @@ -565,9 +631,9 @@ static void omap2_mpu_recalc(struct clk * clk) * Some might argue L3-DDR, others ARM, others IVA. This code is simple and * just uses the ARM rates. */ -static long omap2_round_to_table_rate(struct clk * clk, unsigned long rate) +static long omap2_round_to_table_rate(struct clk *clk, unsigned long rate) { - struct prcm_config * ptr; + struct prcm_config *ptr; long highest_rate; if (clk != &virt_prcm_set) @@ -576,6 +642,8 @@ static long omap2_round_to_table_rate(struct clk * clk, unsigned long rate) highest_rate = -EINVAL; for (ptr = rate_table; ptr->mpu_speed; ptr++) { + if (!(ptr->flags & cpu_mask)) + continue; if (ptr->xtal_speed != sys_ck.rate) continue; @@ -588,6 +656,7 @@ static long omap2_round_to_table_rate(struct clk * clk, unsigned long rate) return highest_rate; } +#ifdef OLD_CK /* * omap2_convert_field_to_div() - turn field value into integer divider */ @@ -938,24 +1007,19 @@ static int omap2_clk_set_parent(struct clk *clk, struct clk *new_parent) set_parent_error: return ret; } +#endif /* OLD_CK */ /* Sets basic clocks based on the specified rate */ -static int omap2_select_table_rate(struct clk * clk, unsigned long rate) +static int omap2_select_table_rate(struct clk *clk, unsigned long rate) { - u32 flags, cur_rate, done_rate, bypass = 0; - u8 cpu_mask = 0; + u32 cur_rate, done_rate, bypass = 0, tmp; struct prcm_config *prcm; unsigned long found_speed = 0; + unsigned long flags; if (clk != &virt_prcm_set) return -EINVAL; - /* FIXME: Change cpu_is_omap2420() to cpu_is_omap242x() */ - if (cpu_is_omap2420()) - cpu_mask = RATE_IN_242X; - else if (cpu_is_omap2430()) - cpu_mask = RATE_IN_243X; - for (prcm = rate_table; prcm->mpu_speed; prcm++) { if (!(prcm->flags & cpu_mask)) continue; @@ -976,38 +1040,42 @@ static int omap2_select_table_rate(struct clk * clk, unsigned long rate) } curr_prcm_set = prcm; - cur_rate = omap2_get_dpll_rate(&dpll_ck); + cur_rate = omap2_get_dpll_rate_24xx(&dpll_ck); if (prcm->dpll_speed == cur_rate / 2) { - omap2_reprogram_sdrc(PRCM_HALF_SPEED, 1); + omap2_reprogram_sdrc(CORE_CLK_SRC_DPLL, 1); } else if (prcm->dpll_speed == cur_rate * 2) { - omap2_reprogram_sdrc(PRCM_FULL_SPEED, 1); + omap2_reprogram_sdrc(CORE_CLK_SRC_DPLL_X2, 1); } else if (prcm->dpll_speed != cur_rate) { local_irq_save(flags); if (prcm->dpll_speed == prcm->xtal_speed) bypass = 1; - if ((prcm->cm_clksel2_pll & 0x3) == 2) - done_rate = PRCM_FULL_SPEED; + if ((prcm->cm_clksel2_pll & OMAP24XX_CORE_CLK_SRC_MASK) == + CORE_CLK_SRC_DPLL_X2) + done_rate = CORE_CLK_SRC_DPLL_X2; else - done_rate = PRCM_HALF_SPEED; + done_rate = CORE_CLK_SRC_DPLL; /* MPU divider */ - CM_CLKSEL_MPU = prcm->cm_clksel_mpu; + cm_write_mod_reg(prcm->cm_clksel_mpu, MPU_MOD, CM_CLKSEL); /* dsp + iva1 div(2420), iva2.1(2430) */ - CM_CLKSEL_DSP = prcm->cm_clksel_dsp; + cm_write_mod_reg(prcm->cm_clksel_dsp, + OMAP24XX_DSP_MOD, CM_CLKSEL); - CM_CLKSEL_GFX = prcm->cm_clksel_gfx; + cm_write_mod_reg(prcm->cm_clksel_gfx, GFX_MOD, CM_CLKSEL); /* Major subsystem dividers */ - CM_CLKSEL1_CORE = prcm->cm_clksel1_core; + tmp = cm_read_mod_reg(CORE_MOD, CM_CLKSEL1) & OMAP24XX_CLKSEL_DSS2_MASK; + cm_write_mod_reg(prcm->cm_clksel1_core | tmp, CORE_MOD, CM_CLKSEL1); if (cpu_is_omap2430()) - CM_CLKSEL_MDM = prcm->cm_clksel_mdm; + cm_write_mod_reg(prcm->cm_clksel_mdm, + OMAP2430_MDM_MOD, CM_CLKSEL); /* x2 to enter init_mem */ - omap2_reprogram_sdrc(PRCM_FULL_SPEED, 1); + omap2_reprogram_sdrc(CORE_CLK_SRC_DPLL_X2, 1); omap2_set_prcm(prcm->cm_clksel1_pll, prcm->base_sdrc_rfr, bypass); @@ -1017,7 +1085,7 @@ static int omap2_select_table_rate(struct clk * clk, unsigned long rate) local_irq_restore(flags); } - omap2_clksel_recalc(&dpll_ck); + omap2_dpll_recalc(&dpll_ck); return 0; } @@ -1051,27 +1119,45 @@ static struct clk_functions omap2_clk_functions = { .clk_disable_unused = omap2_clk_disable_unused, }; -static void __init omap2_get_crystal_rate(struct clk *osc, struct clk *sys) +static u32 omap2_get_apll_clkin(void) { - u32 div, aplls, sclk = 13000000; + u32 aplls, sclk = 0; - aplls = CM_CLKSEL1_PLL; - aplls &= ((1 << 23) | (1 << 24) | (1 << 25)); - aplls >>= 23; /* Isolate field, 0,2,3 */ + aplls = cm_read_mod_reg(PLL_MOD, CM_CLKSEL1); + aplls &= OMAP24XX_APLLS_CLKIN_MASK; + aplls >>= OMAP24XX_APLLS_CLKIN_SHIFT; - if (aplls == 0) + if (aplls == APLLS_CLKIN_19_2MHZ) sclk = 19200000; - else if (aplls == 2) + else if (aplls == APLLS_CLKIN_13MHZ) sclk = 13000000; - else if (aplls == 3) + else if (aplls == APLLS_CLKIN_12MHZ) sclk = 12000000; - div = PRCM_CLKSRC_CTRL; - div &= ((1 << 7) | (1 << 6)); - div >>= sys->rate_offset; + return sclk; +} + +static u32 omap2_get_sysclkdiv(void) +{ + u32 div; + + div = __raw_readl(OMAP24XX_PRCM_CLKSRC_CTRL); + div &= OMAP_SYSCLKDIV_MASK; + div >>= OMAP_SYSCLKDIV_SHIFT; - osc->rate = sclk * div; - sys->rate = sclk; + return div; +} + +static void omap2_osc_clk_recalc(struct clk *clk) +{ + clk->rate = omap2_get_apll_clkin() * omap2_get_sysclkdiv(); + propagate_rate(clk); +} + +static void omap2_sys_clk_recalc(struct clk *clk) +{ + clk->rate = clk->parent->rate / omap2_get_sysclkdiv(); + propagate_rate(clk); } /* @@ -1100,8 +1186,7 @@ static int __init omap2_clk_arch_init(void) if (omap2_select_table_rate(&virt_prcm_set, mpurate)) printk(KERN_ERR "Could not find matching MPU rate\n"); - propagate_rate(&osc_ck); /* update main root fast */ - propagate_rate(&func_32k_ck); /* update main root slow */ + recalculate_root_clocks(); printk(KERN_INFO "Switched to new clocking rate (Crystal/DPLL/MPU): " "%ld.%01ld/%ld/%ld MHz\n", @@ -1115,13 +1200,21 @@ arch_initcall(omap2_clk_arch_init); int __init omap2_clk_init(void) { struct prcm_config *prcm; - struct clk ** clkp; + struct clk **clkp; u32 clkrate; + if (cpu_is_omap242x()) + cpu_mask = RATE_IN_242X; + else if (cpu_is_omap2430()) + cpu_mask = RATE_IN_243X; + clk_init(&omap2_clk_functions); - omap2_get_crystal_rate(&osc_ck, &sys_ck); - for (clkp = onchip_clks; clkp < onchip_clks + ARRAY_SIZE(onchip_clks); + omap2_osc_clk_recalc(&osc_ck); + omap2_sys_clk_recalc(&sys_ck); + + for (clkp = onchip_24xx_clks; + clkp < onchip_24xx_clks + ARRAY_SIZE(onchip_24xx_clks); clkp++) { if ((*clkp)->flags & CLOCK_IN_OMAP242X && cpu_is_omap2420()) { @@ -1136,8 +1229,10 @@ int __init omap2_clk_init(void) } /* Check the MPU rate set by bootloader */ - clkrate = omap2_get_dpll_rate(&dpll_ck); + clkrate = omap2_get_dpll_rate_24xx(&dpll_ck); for (prcm = rate_table; prcm->mpu_speed; prcm++) { + if (!(prcm->flags & cpu_mask)) + continue; if (prcm->xtal_speed != sys_ck.rate) continue; if (prcm->dpll_speed <= clkrate) @@ -1145,8 +1240,7 @@ int __init omap2_clk_init(void) } curr_prcm_set = prcm; - propagate_rate(&osc_ck); /* update main root fast */ - propagate_rate(&func_32k_ck); /* update main root slow */ + recalculate_root_clocks(); printk(KERN_INFO "Clocking rate (Crystal/DPLL/MPU): " "%ld.%01ld/%ld/%ld MHz\n", @@ -1157,16 +1251,7 @@ int __init omap2_clk_init(void) * Only enable those clocks we will need, let the drivers * enable other clocks as necessary */ - clk_enable(&sync_32k_ick); - clk_enable(&omapctrl_ick); - - /* Force the APLLs always active. The clocks are idled - * automatically by hardware. */ - clk_enable(&apll96_ck); - clk_enable(&apll54_ck); - - if (cpu_is_omap2430()) - clk_enable(&sdrc_ick); + clk_enable_init_clocks(); /* Avoid sleeping sleeping during omap2_clk_prepare_for_reboot() */ vclk = clk_get(NULL, "virt_prcm_set"); diff --git a/arch/arm/mach-omap2/clock24xx.h b/arch/arm/mach-omap2/clock24xx.h index 4f79186..9363c20 100644 --- a/arch/arm/mach-omap2/clock24xx.h +++ b/arch/arm/mach-omap2/clock24xx.h @@ -14,24 +14,29 @@ * published by the Free Software Foundation. */ -#ifndef __ARCH_ARM_MACH_OMAP2_CLOCK_H -#define __ARCH_ARM_MACH_OMAP2_CLOCK_H +#ifndef __ARCH_ARM_MACH_OMAP2_CLOCK24XX_H +#define __ARCH_ARM_MACH_OMAP2_CLOCK24XX_H -static void omap2_sys_clk_recalc(struct clk * clk); -static void omap2_clksel_recalc(struct clk * clk); -static void omap2_followparent_recalc(struct clk * clk); -static void omap2_propagate_rate(struct clk * clk); -static void omap2_mpu_recalc(struct clk * clk); +#include "clock.h" + +#include "prm.h" +#include "cm.h" +#include "prm-regbits-24xx.h" +#include "cm-regbits-24xx.h" +#include "sdrc.h" + +static void omap2_table_mpu_recalc(struct clk * clk); static int omap2_select_table_rate(struct clk * clk, unsigned long rate); static long omap2_round_to_table_rate(struct clk * clk, unsigned long rate); -static void omap2_clk_disable(struct clk *clk); static void omap2_sys_clk_recalc(struct clk * clk); -static u32 omap2_clksel_to_divisor(u32 div_sel, u32 field_val); -static u32 omap2_clksel_get_divisor(struct clk *clk); - - -#define RATE_IN_242X (1 << 0) -#define RATE_IN_243X (1 << 1) +static void omap2_osc_clk_recalc(struct clk * clk); +static void omap2_sys_clk_recalc(struct clk * clk); +static void omap2_dpll_recalc(struct clk * clk); +static int omap2_clk_fixed_enable(struct clk * clk); +static void omap2_clk_fixed_disable(struct clk * clk); +static int omap2_enable_osc_ck(struct clk * clk); +static void omap2_disable_osc_ck(struct clk * clk); +static int omap2_reprogram_dpll(struct clk * clk, unsigned long rate); /* Key dividers which make up a PRCM set. Ratio's for a PRCM are mandated. * xtal_speed, dpll_speed, mpu_speed, CM_CLKSEL_MPU,CM_CLKSEL_DSP @@ -52,16 +57,6 @@ struct prcm_config { unsigned char flags; }; -/* Mask for clksel which support parent settign in set_rate */ -#define SRC_SEL_MASK (CM_CORE_SEL1 | CM_CORE_SEL2 | CM_WKUP_SEL1 | \ - CM_PLL_SEL1 | CM_PLL_SEL2 | CM_SYSCLKOUT_SEL1) - -/* Mask for clksel regs which support rate operations */ -#define SRC_RATE_SEL_MASK (CM_MPU_SEL1 | CM_DSP_SEL1 | CM_GFX_SEL1 | \ - CM_MODEM_SEL1 | CM_CORE_SEL1 | CM_CORE_SEL2 | \ - CM_WKUP_SEL1 | CM_PLL_SEL1 | CM_PLL_SEL2 | \ - CM_SYSCLKOUT_SEL1) - /* * The OMAP2 processor can be run at several discrete 'PRCM configurations'. * These configurations are characterized by voltage and speed for clocks. @@ -174,7 +169,7 @@ struct prcm_config { #define RII_CLKSEL_DSP (3 << 0) /* c5x - 200MHz */ #define RII_CLKSEL_DSP_IF (2 << 5) /* c5x - 100MHz */ #define RII_SYNC_DSP (0 << 7) /* Bypass sync */ -#define RII_CLKSEL_IVA (6 << 8) /* iva1 - 200MHz */ +#define RII_CLKSEL_IVA (3 << 8) /* iva1 - 200MHz */ #define RII_SYNC_IVA (0 << 13) /* Bypass sync */ #define RII_CM_CLKSEL_DSP_VAL RII_SYNC_IVA | RII_CLKSEL_IVA | \ RII_SYNC_DSP | RII_CLKSEL_DSP_IF | \ @@ -182,6 +177,27 @@ struct prcm_config { #define RII_CLKSEL_GFX (2 << 0) /* 50MHz */ #define RII_CM_CLKSEL_GFX_VAL RII_CLKSEL_GFX +/* 2420-PRCM I 660MHz core */ +#define RI_CLKSEL_L3 (4 << 0) /* 165MHz */ +#define RI_CLKSEL_L4 (2 << 5) /* 82.5MHz */ +#define RI_CLKSEL_USB (4 << 25) /* 41.25MHz */ +#define RI_CM_CLKSEL1_CORE_VAL RI_CLKSEL_USB | \ + RXX_CLKSEL_SSI | RXX_CLKSEL_VLYNQ | \ + RX_CLKSEL_DSS2 | RX_CLKSEL_DSS1 | \ + RI_CLKSEL_L4 | RI_CLKSEL_L3 +#define RI_CLKSEL_MPU (2 << 0) /* 330MHz */ +#define RI_CM_CLKSEL_MPU_VAL RI_CLKSEL_MPU +#define RI_CLKSEL_DSP (3 << 0) /* c5x - 220MHz */ +#define RI_CLKSEL_DSP_IF (2 << 5) /* c5x - 110MHz */ +#define RI_SYNC_DSP (1 << 7) /* Activate sync */ +#define RI_CLKSEL_IVA (4 << 8) /* iva1 - 165MHz */ +#define RI_SYNC_IVA (0 << 13) /* Bypass sync */ +#define RI_CM_CLKSEL_DSP_VAL RI_SYNC_IVA | RI_CLKSEL_IVA | \ + RI_SYNC_DSP | RI_CLKSEL_DSP_IF | \ + RI_CLKSEL_DSP +#define RI_CLKSEL_GFX (1 << 0) /* 165MHz */ +#define RI_CM_CLKSEL_GFX_VAL RI_CLKSEL_GFX + /* 2420-PRCM VII (boot) */ #define RVII_CLKSEL_L3 (1 << 0) #define RVII_CLKSEL_L4 (1 << 5) @@ -224,7 +240,6 @@ struct prcm_config { /* * 2430 - standalone, 2*ref*M/(n+1), M/N is for exactness not relock speed - * #2 (ratio1) baseport-target * #5a (ratio1) baseport-target, target DPLL = 266*2 = 532MHz */ #define M5A_DPLL_MULT_12 (133 << 12) @@ -232,13 +247,13 @@ struct prcm_config { #define M5A_CM_CLKSEL1_PLL_12_VAL MX_48M_SRC | MX_54M_SRC | \ M5A_DPLL_DIV_12 | M5A_DPLL_MULT_12 | \ MX_APLLS_CLIKIN_12 -#define M5A_DPLL_MULT_13 (266 << 12) -#define M5A_DPLL_DIV_13 (12 << 8) +#define M5A_DPLL_MULT_13 (61 << 12) +#define M5A_DPLL_DIV_13 (2 << 8) #define M5A_CM_CLKSEL1_PLL_13_VAL MX_48M_SRC | MX_54M_SRC | \ M5A_DPLL_DIV_13 | M5A_DPLL_MULT_13 | \ MX_APLLS_CLIKIN_13 -#define M5A_DPLL_MULT_19 (180 << 12) -#define M5A_DPLL_DIV_19 (12 << 8) +#define M5A_DPLL_MULT_19 (55 << 12) +#define M5A_DPLL_DIV_19 (3 << 8) #define M5A_CM_CLKSEL1_PLL_19_VAL MX_48M_SRC | MX_54M_SRC | \ M5A_DPLL_DIV_19 | M5A_DPLL_MULT_19 | \ MX_APLLS_CLIKIN_19_2 @@ -260,7 +275,27 @@ struct prcm_config { M5B_DPLL_DIV_19 | M5B_DPLL_MULT_19 | \ MX_APLLS_CLIKIN_19_2 /* - * #4 (ratio2) + * #4 (ratio2), DPLL = 399*2 = 798MHz, L3=133MHz + */ +#define M4_DPLL_MULT_12 (133 << 12) +#define M4_DPLL_DIV_12 (3 << 8) +#define M4_CM_CLKSEL1_PLL_12_VAL MX_48M_SRC | MX_54M_SRC | \ + M4_DPLL_DIV_12 | M4_DPLL_MULT_12 | \ + MX_APLLS_CLIKIN_12 + +#define M4_DPLL_MULT_13 (399 << 12) +#define M4_DPLL_DIV_13 (12 << 8) +#define M4_CM_CLKSEL1_PLL_13_VAL MX_48M_SRC | MX_54M_SRC | \ + M4_DPLL_DIV_13 | M4_DPLL_MULT_13 | \ + MX_APLLS_CLIKIN_13 + +#define M4_DPLL_MULT_19 (145 << 12) +#define M4_DPLL_DIV_19 (6 << 8) +#define M4_CM_CLKSEL1_PLL_19_VAL MX_48M_SRC | MX_54M_SRC | \ + M4_DPLL_DIV_19 | M4_DPLL_MULT_19 | \ + MX_APLLS_CLIKIN_19_2 + +/* * #3 (ratio2) baseport-target, target DPLL = 330*2 = 660MHz */ #define M3_DPLL_MULT_12 (55 << 12) @@ -268,16 +303,41 @@ struct prcm_config { #define M3_CM_CLKSEL1_PLL_12_VAL MX_48M_SRC | MX_54M_SRC | \ M3_DPLL_DIV_12 | M3_DPLL_MULT_12 | \ MX_APLLS_CLIKIN_12 -#define M3_DPLL_MULT_13 (330 << 12) -#define M3_DPLL_DIV_13 (12 << 8) +#define M3_DPLL_MULT_13 (76 << 12) +#define M3_DPLL_DIV_13 (2 << 8) #define M3_CM_CLKSEL1_PLL_13_VAL MX_48M_SRC | MX_54M_SRC | \ M3_DPLL_DIV_13 | M3_DPLL_MULT_13 | \ MX_APLLS_CLIKIN_13 -#define M3_DPLL_MULT_19 (275 << 12) -#define M3_DPLL_DIV_19 (15 << 8) +#define M3_DPLL_MULT_19 (17 << 12) +#define M3_DPLL_DIV_19 (0 << 8) #define M3_CM_CLKSEL1_PLL_19_VAL MX_48M_SRC | MX_54M_SRC | \ M3_DPLL_DIV_19 | M3_DPLL_MULT_19 | \ MX_APLLS_CLIKIN_19_2 + +/* + * #2 (ratio1) DPLL = 330*2 = 660MHz, L3=165MHz + */ +#define M2_DPLL_MULT_12 (55 << 12) +#define M2_DPLL_DIV_12 (1 << 8) +#define M2_CM_CLKSEL1_PLL_12_VAL MX_48M_SRC | MX_54M_SRC | \ + M2_DPLL_DIV_12 | M2_DPLL_MULT_12 | \ + MX_APLLS_CLIKIN_12 + +/* Speed changes - Used 658.7MHz instead of 660MHz for LP-Refresh M=76 N=2, + * relock time issue */ +/* Core frequency changed from 330/165 to 329/164 MHz*/ +#define M2_DPLL_MULT_13 (76 << 12) +#define M2_DPLL_DIV_13 (2 << 8) +#define M2_CM_CLKSEL1_PLL_13_VAL MX_48M_SRC | MX_54M_SRC | \ + M2_DPLL_DIV_13 | M2_DPLL_MULT_13 | \ + MX_APLLS_CLIKIN_13 + +#define M2_DPLL_MULT_19 (17 << 12) +#define M2_DPLL_DIV_19 (0 << 8) +#define M2_CM_CLKSEL1_PLL_19_VAL MX_48M_SRC | MX_54M_SRC | \ + M2_DPLL_DIV_19 | M2_DPLL_MULT_19 | \ + MX_APLLS_CLIKIN_19_2 + /* boot (boot) */ #define MB_DPLL_MULT (1 << 12) #define MB_DPLL_DIV (0 << 8) @@ -300,6 +360,13 @@ struct prcm_config { * boot (boot) */ +/* PRCM I target DPLL = 2*330MHz = 660MHz */ +#define MI_DPLL_MULT_12 (55 << 12) +#define MI_DPLL_DIV_12 (1 << 8) +#define MI_CM_CLKSEL1_PLL_12_VAL MX_48M_SRC | MX_54M_SRC | \ + MI_DPLL_DIV_12 | MI_DPLL_MULT_12 | \ + MX_APLLS_CLIKIN_12 + /* * 2420 Equivalent - mode registers * PRCM II , target DPLL = 2*300MHz = 600MHz @@ -335,28 +402,6 @@ struct prcm_config { #define MX_CLKSEL2_PLL_2x_VAL (2 << 0) #define MX_CLKSEL2_PLL_1x_VAL (1 << 0) -/* - * These represent optimal values for common parts, it won't work for all. - * As long as you scale down, most parameters are still work, they just - * become sub-optimal. The RFR value goes in the opposite direction. If you - * don't adjust it down as your clock period increases the refresh interval - * will not be met. Setting all parameters for complete worst case may work, - * but may cut memory performance by 2x. Due to errata the DLLs need to be - * unlocked and their value needs run time calibration. A dynamic call is - * need for that as no single right value exists acorss production samples. - * - * Only the FULL speed values are given. Current code is such that rate - * changes must be made at DPLLoutx2. The actual value adjustment for low - * frequency operation will be handled by omap_set_performance() - * - * By having the boot loader boot up in the fastest L4 speed available likely - * will result in something which you can switch between. - */ -#define V24XX_SDRC_RFR_CTRL_133MHz (0x0003de00 | 1) -#define V24XX_SDRC_RFR_CTRL_100MHz (0x0002da01 | 1) -#define V24XX_SDRC_RFR_CTRL_110MHz (0x0002da01 | 1) /* Need to calc */ -#define V24XX_SDRC_RFR_CTRL_BYPASS (0x00005000 | 1) /* Need to calc */ - /* MPU speed defines */ #define S12M 12000000 #define S13M 13000000 @@ -365,15 +410,21 @@ struct prcm_config { #define S100M 100000000 #define S133M 133000000 #define S150M 150000000 +#define S164M 164000000 #define S165M 165000000 +#define S199M 199000000 #define S200M 200000000 #define S266M 266000000 #define S300M 300000000 +#define S329M 329000000 #define S330M 330000000 +#define S399M 399000000 #define S400M 400000000 #define S532M 532000000 #define S600M 600000000 +#define S658M 658000000 #define S660M 660000000 +#define S798M 798000000 /*------------------------------------------------------------------------- * Key dividers which make up a PRCM set. Ratio's for a PRCM are mandated. @@ -394,78 +445,93 @@ struct prcm_config { * Note: This table needs to be sorted, fastest to slowest. *-------------------------------------------------------------------------*/ static struct prcm_config rate_table[] = { + /* PRCM I - FAST */ + {S12M, S660M, S330M, RI_CM_CLKSEL_MPU_VAL, /* 330MHz ARM */ + RI_CM_CLKSEL_DSP_VAL, RI_CM_CLKSEL_GFX_VAL, + RI_CM_CLKSEL1_CORE_VAL, MI_CM_CLKSEL1_PLL_12_VAL, + MX_CLKSEL2_PLL_2x_VAL, 0, SDRC_RFR_CTRL_165MHz, + RATE_IN_242X}, + /* PRCM II - FAST */ {S12M, S600M, S300M, RII_CM_CLKSEL_MPU_VAL, /* 300MHz ARM */ RII_CM_CLKSEL_DSP_VAL, RII_CM_CLKSEL_GFX_VAL, RII_CM_CLKSEL1_CORE_VAL, MII_CM_CLKSEL1_PLL_12_VAL, - MX_CLKSEL2_PLL_2x_VAL, 0, V24XX_SDRC_RFR_CTRL_100MHz, + MX_CLKSEL2_PLL_2x_VAL, 0, SDRC_RFR_CTRL_100MHz, RATE_IN_242X}, {S13M, S600M, S300M, RII_CM_CLKSEL_MPU_VAL, /* 300MHz ARM */ RII_CM_CLKSEL_DSP_VAL, RII_CM_CLKSEL_GFX_VAL, RII_CM_CLKSEL1_CORE_VAL, MII_CM_CLKSEL1_PLL_13_VAL, - MX_CLKSEL2_PLL_2x_VAL, 0, V24XX_SDRC_RFR_CTRL_100MHz, + MX_CLKSEL2_PLL_2x_VAL, 0, SDRC_RFR_CTRL_100MHz, RATE_IN_242X}, /* PRCM III - FAST */ {S12M, S532M, S266M, RIII_CM_CLKSEL_MPU_VAL, /* 266MHz ARM */ RIII_CM_CLKSEL_DSP_VAL, RIII_CM_CLKSEL_GFX_VAL, RIII_CM_CLKSEL1_CORE_VAL, MIII_CM_CLKSEL1_PLL_12_VAL, - MX_CLKSEL2_PLL_2x_VAL, 0, V24XX_SDRC_RFR_CTRL_133MHz, + MX_CLKSEL2_PLL_2x_VAL, 0, SDRC_RFR_CTRL_133MHz, RATE_IN_242X}, {S13M, S532M, S266M, RIII_CM_CLKSEL_MPU_VAL, /* 266MHz ARM */ RIII_CM_CLKSEL_DSP_VAL, RIII_CM_CLKSEL_GFX_VAL, RIII_CM_CLKSEL1_CORE_VAL, MIII_CM_CLKSEL1_PLL_13_VAL, - MX_CLKSEL2_PLL_2x_VAL, 0, V24XX_SDRC_RFR_CTRL_133MHz, + MX_CLKSEL2_PLL_2x_VAL, 0, SDRC_RFR_CTRL_133MHz, RATE_IN_242X}, /* PRCM II - SLOW */ {S12M, S300M, S150M, RII_CM_CLKSEL_MPU_VAL, /* 150MHz ARM */ RII_CM_CLKSEL_DSP_VAL, RII_CM_CLKSEL_GFX_VAL, RII_CM_CLKSEL1_CORE_VAL, MII_CM_CLKSEL1_PLL_12_VAL, - MX_CLKSEL2_PLL_2x_VAL, 0, V24XX_SDRC_RFR_CTRL_100MHz, + MX_CLKSEL2_PLL_2x_VAL, 0, SDRC_RFR_CTRL_100MHz, RATE_IN_242X}, {S13M, S300M, S150M, RII_CM_CLKSEL_MPU_VAL, /* 150MHz ARM */ RII_CM_CLKSEL_DSP_VAL, RII_CM_CLKSEL_GFX_VAL, RII_CM_CLKSEL1_CORE_VAL, MII_CM_CLKSEL1_PLL_13_VAL, - MX_CLKSEL2_PLL_2x_VAL, 0, V24XX_SDRC_RFR_CTRL_100MHz, + MX_CLKSEL2_PLL_2x_VAL, 0, SDRC_RFR_CTRL_100MHz, RATE_IN_242X}, /* PRCM III - SLOW */ {S12M, S266M, S133M, RIII_CM_CLKSEL_MPU_VAL, /* 133MHz ARM */ RIII_CM_CLKSEL_DSP_VAL, RIII_CM_CLKSEL_GFX_VAL, RIII_CM_CLKSEL1_CORE_VAL, MIII_CM_CLKSEL1_PLL_12_VAL, - MX_CLKSEL2_PLL_2x_VAL, 0, V24XX_SDRC_RFR_CTRL_133MHz, + MX_CLKSEL2_PLL_2x_VAL, 0, SDRC_RFR_CTRL_133MHz, RATE_IN_242X}, {S13M, S266M, S133M, RIII_CM_CLKSEL_MPU_VAL, /* 133MHz ARM */ RIII_CM_CLKSEL_DSP_VAL, RIII_CM_CLKSEL_GFX_VAL, RIII_CM_CLKSEL1_CORE_VAL, MIII_CM_CLKSEL1_PLL_13_VAL, - MX_CLKSEL2_PLL_2x_VAL, 0, V24XX_SDRC_RFR_CTRL_133MHz, + MX_CLKSEL2_PLL_2x_VAL, 0, SDRC_RFR_CTRL_133MHz, RATE_IN_242X}, /* PRCM-VII (boot-bypass) */ {S12M, S12M, S12M, RVII_CM_CLKSEL_MPU_VAL, /* 12MHz ARM*/ RVII_CM_CLKSEL_DSP_VAL, RVII_CM_CLKSEL_GFX_VAL, RVII_CM_CLKSEL1_CORE_VAL, MVII_CM_CLKSEL1_PLL_12_VAL, - MX_CLKSEL2_PLL_2x_VAL, 0, V24XX_SDRC_RFR_CTRL_BYPASS, + MX_CLKSEL2_PLL_2x_VAL, 0, SDRC_RFR_CTRL_BYPASS, RATE_IN_242X}, /* PRCM-VII (boot-bypass) */ {S13M, S13M, S13M, RVII_CM_CLKSEL_MPU_VAL, /* 13MHz ARM */ RVII_CM_CLKSEL_DSP_VAL, RVII_CM_CLKSEL_GFX_VAL, RVII_CM_CLKSEL1_CORE_VAL, MVII_CM_CLKSEL1_PLL_13_VAL, - MX_CLKSEL2_PLL_2x_VAL, 0, V24XX_SDRC_RFR_CTRL_BYPASS, + MX_CLKSEL2_PLL_2x_VAL, 0, SDRC_RFR_CTRL_BYPASS, RATE_IN_242X}, - /* PRCM #3 - ratio2 (ES2) - FAST */ - {S13M, S660M, S330M, R2_CM_CLKSEL_MPU_VAL, /* 330MHz ARM */ + /* PRCM #4 - ratio2 (ES2.1) - FAST */ + {S13M, S798M, S399M, R2_CM_CLKSEL_MPU_VAL, /* 399MHz ARM */ R2_CM_CLKSEL_DSP_VAL, R2_CM_CLKSEL_GFX_VAL, - R2_CM_CLKSEL1_CORE_VAL, M3_CM_CLKSEL1_PLL_13_VAL, + R2_CM_CLKSEL1_CORE_VAL, M4_CM_CLKSEL1_PLL_13_VAL, MX_CLKSEL2_PLL_2x_VAL, R2_CM_CLKSEL_MDM_VAL, - V24XX_SDRC_RFR_CTRL_110MHz, + SDRC_RFR_CTRL_133MHz, + RATE_IN_243X}, + + /* PRCM #2 - ratio1 (ES2) - FAST */ + {S13M, S658M, S329M, R1_CM_CLKSEL_MPU_VAL, /* 330MHz ARM */ + R1_CM_CLKSEL_DSP_VAL, R1_CM_CLKSEL_GFX_VAL, + R1_CM_CLKSEL1_CORE_VAL, M2_CM_CLKSEL1_PLL_13_VAL, + MX_CLKSEL2_PLL_2x_VAL, R1_CM_CLKSEL_MDM_VAL, + SDRC_RFR_CTRL_165MHz, RATE_IN_243X}, /* PRCM #5a - ratio1 - FAST */ @@ -473,7 +539,7 @@ static struct prcm_config rate_table[] = { R1_CM_CLKSEL_DSP_VAL, R1_CM_CLKSEL_GFX_VAL, R1_CM_CLKSEL1_CORE_VAL, M5A_CM_CLKSEL1_PLL_13_VAL, MX_CLKSEL2_PLL_2x_VAL, R1_CM_CLKSEL_MDM_VAL, - V24XX_SDRC_RFR_CTRL_133MHz, + SDRC_RFR_CTRL_133MHz, RATE_IN_243X}, /* PRCM #5b - ratio1 - FAST */ @@ -481,15 +547,23 @@ static struct prcm_config rate_table[] = { R1_CM_CLKSEL_DSP_VAL, R1_CM_CLKSEL_GFX_VAL, R1_CM_CLKSEL1_CORE_VAL, M5B_CM_CLKSEL1_PLL_13_VAL, MX_CLKSEL2_PLL_2x_VAL, R1_CM_CLKSEL_MDM_VAL, - V24XX_SDRC_RFR_CTRL_100MHz, + SDRC_RFR_CTRL_100MHz, RATE_IN_243X}, - /* PRCM #3 - ratio2 (ES2) - SLOW */ - {S13M, S330M, S165M, R2_CM_CLKSEL_MPU_VAL, /* 165MHz ARM */ + /* PRCM #4 - ratio1 (ES2.1) - SLOW */ + {S13M, S399M, S199M, R2_CM_CLKSEL_MPU_VAL, /* 200MHz ARM */ R2_CM_CLKSEL_DSP_VAL, R2_CM_CLKSEL_GFX_VAL, - R2_CM_CLKSEL1_CORE_VAL, M3_CM_CLKSEL1_PLL_13_VAL, + R2_CM_CLKSEL1_CORE_VAL, M4_CM_CLKSEL1_PLL_13_VAL, MX_CLKSEL2_PLL_1x_VAL, R2_CM_CLKSEL_MDM_VAL, - V24XX_SDRC_RFR_CTRL_110MHz, + SDRC_RFR_CTRL_133MHz, + RATE_IN_243X}, + + /* PRCM #2 - ratio1 (ES2) - SLOW */ + {S13M, S329M, S164M, R1_CM_CLKSEL_MPU_VAL, /* 165MHz ARM */ + R1_CM_CLKSEL_DSP_VAL, R1_CM_CLKSEL_GFX_VAL, + R1_CM_CLKSEL1_CORE_VAL, M2_CM_CLKSEL1_PLL_13_VAL, + MX_CLKSEL2_PLL_1x_VAL, R1_CM_CLKSEL_MDM_VAL, + SDRC_RFR_CTRL_165MHz, RATE_IN_243X}, /* PRCM #5a - ratio1 - SLOW */ @@ -497,7 +571,7 @@ static struct prcm_config rate_table[] = { R1_CM_CLKSEL_DSP_VAL, R1_CM_CLKSEL_GFX_VAL, R1_CM_CLKSEL1_CORE_VAL, M5A_CM_CLKSEL1_PLL_13_VAL, MX_CLKSEL2_PLL_1x_VAL, R1_CM_CLKSEL_MDM_VAL, - V24XX_SDRC_RFR_CTRL_133MHz, + SDRC_RFR_CTRL_133MHz, RATE_IN_243X}, /* PRCM #5b - ratio1 - SLOW*/ @@ -505,7 +579,7 @@ static struct prcm_config rate_table[] = { R1_CM_CLKSEL_DSP_VAL, R1_CM_CLKSEL_GFX_VAL, R1_CM_CLKSEL1_CORE_VAL, M5B_CM_CLKSEL1_PLL_13_VAL, MX_CLKSEL2_PLL_1x_VAL, R1_CM_CLKSEL_MDM_VAL, - V24XX_SDRC_RFR_CTRL_100MHz, + SDRC_RFR_CTRL_100MHz, RATE_IN_243X}, /* PRCM-boot/bypass */ @@ -513,7 +587,7 @@ static struct prcm_config rate_table[] = { RB_CM_CLKSEL_DSP_VAL, RB_CM_CLKSEL_GFX_VAL, RB_CM_CLKSEL1_CORE_VAL, MB_CM_CLKSEL1_PLL_13_VAL, MX_CLKSEL2_PLL_2x_VAL, RB_CM_CLKSEL_MDM_VAL, - V24XX_SDRC_RFR_CTRL_BYPASS, + SDRC_RFR_CTRL_BYPASS, RATE_IN_243X}, /* PRCM-boot/bypass */ @@ -521,7 +595,7 @@ static struct prcm_config rate_table[] = { RB_CM_CLKSEL_DSP_VAL, RB_CM_CLKSEL_GFX_VAL, RB_CM_CLKSEL1_CORE_VAL, MB_CM_CLKSEL1_PLL_12_VAL, MX_CLKSEL2_PLL_2x_VAL, RB_CM_CLKSEL_MDM_VAL, - V24XX_SDRC_RFR_CTRL_BYPASS, + SDRC_RFR_CTRL_BYPASS, RATE_IN_243X}, { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, @@ -547,6 +621,7 @@ static struct prcm_config rate_table[] = { * clocks. *-------------------------------------------------------------------------*/ +#ifdef OLD_CK /* Base external input clocks */ static struct clk func_32k_ck = { .name = "func_32k_ck", @@ -554,7 +629,7 @@ static struct clk func_32k_ck = { .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X | RATE_FIXED | ALWAYS_ENABLED, }; - +#endif /* OLD_CK */ /* Typical 12/13MHz in standalone mode, will be 26Mhz in chassis mode */ static struct clk osc_ck = { /* (*12, *13, 19.2, *26, 38.4)MHz */ .name = "osc_ck", @@ -570,10 +645,9 @@ static struct clk sys_ck = { /* (*12, *13, 19.2, 26, 38.4)MHz */ .rate = 13000000, .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X | RATE_FIXED | ALWAYS_ENABLED | RATE_PROPAGATES, - .rate_offset = 6, /* sysclkdiv 1 or 2, already handled or no boot */ .recalc = &omap2_sys_clk_recalc, }; - +#ifdef OLD_CK static struct clk alt_ck = { /* Typical 54M or 48M, may not exist */ .name = "alt_ck", .rate = 54000000, @@ -581,29 +655,43 @@ static struct clk alt_ck = { /* Typical 54M or 48M, may not exist */ RATE_FIXED | ALWAYS_ENABLED | RATE_PROPAGATES, .recalc = &omap2_propagate_rate, }; - +#endif /* OLD_CK */ /* * Analog domain root source clocks */ /* dpll_ck, is broken out in to special cases through clksel */ +/* REVISIT: Rate changes on dpll_ck trigger a full set change. ... + * deal with this + */ + +static const struct dpll_data dpll_dd = { + .mult_div1_reg = OMAP_CM_REGADDR(PLL_MOD, CM_CLKSEL1), + .mult_mask = OMAP24XX_DPLL_MULT_MASK, + .div1_mask = OMAP24XX_DPLL_DIV_MASK, +}; + static struct clk dpll_ck = { .name = "dpll_ck", .parent = &sys_ck, /* Can be func_32k also */ + .dpll_data = &dpll_dd, .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X | - RATE_PROPAGATES | RATE_CKCTL | CM_PLL_SEL1, - .recalc = &omap2_clksel_recalc, + RATE_PROPAGATES | ALWAYS_ENABLED, + .recalc = &omap2_dpll_recalc, + .set_rate = &omap2_reprogram_dpll, }; static struct clk apll96_ck = { .name = "apll96_ck", .parent = &sys_ck, .rate = 96000000, - .flags = CLOCK_IN_OMAP242X |CLOCK_IN_OMAP243X | - RATE_FIXED | RATE_PROPAGATES, - .enable_reg = (void __iomem *)&CM_CLKEN_PLL, - .enable_bit = 0x2, - .recalc = &omap2_propagate_rate, + .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X | + RATE_FIXED | RATE_PROPAGATES | ENABLE_ON_INIT, + .enable_reg = OMAP_CM_REGADDR(PLL_MOD, CM_CLKEN), + .enable_bit = OMAP24XX_EN_96M_PLL_SHIFT, + .enable = &omap2_clk_fixed_enable, + .disable = &omap2_clk_fixed_disable, + .recalc = &propagate_rate, }; static struct clk apll54_ck = { @@ -611,15 +699,18 @@ static struct clk apll54_ck = { .parent = &sys_ck, .rate = 54000000, .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X | - RATE_FIXED | RATE_PROPAGATES, - .enable_reg = (void __iomem *)&CM_CLKEN_PLL, - .enable_bit = 0x6, - .recalc = &omap2_propagate_rate, + RATE_FIXED | RATE_PROPAGATES | ENABLE_ON_INIT, + .enable_reg = OMAP_CM_REGADDR(PLL_MOD, CM_CLKEN), + .enable_bit = OMAP24XX_EN_54M_PLL_SHIFT, + .enable = &omap2_clk_fixed_enable, + .disable = &omap2_clk_fixed_disable, + .recalc = &propagate_rate, }; /* * PRCM digital base sources */ +#ifdef OLD_CK static struct clk func_54m_ck = { .name = "func_54m_ck", .parent = &apll54_ck, /* can also be alt_clk */ @@ -631,15 +722,15 @@ static struct clk func_54m_ck = { .enable_bit = 0xff, .recalc = &omap2_propagate_rate, }; - +#endif /* OLD_CK */ static struct clk core_ck = { .name = "core_ck", .parent = &dpll_ck, /* can also be 32k */ .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X | ALWAYS_ENABLED | RATE_PROPAGATES, - .recalc = &omap2_propagate_rate, + .recalc = &followparent_recalc, }; - +#ifdef OLD_CK static struct clk sleep_ck = { /* sys_clk or 32k */ .name = "sleep_ck", .parent = &func_32k_ck, @@ -726,7 +817,7 @@ static struct clk emul_ck = { .recalc = &omap2_propagate_rate, }; - +#endif /* OLD_CK */ /* * MPU clock domain * Clocks: @@ -740,13 +831,17 @@ static struct clk emul_ck = { static struct clk mpu_ck = { /* Control cpu */ .name = "mpu_ck", .parent = &core_ck, - .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X | RATE_CKCTL | - ALWAYS_ENABLED | CM_MPU_SEL1 | DELAYED_APP | + .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X | + ALWAYS_ENABLED | DELAYED_APP | CONFIG_PARTICIPANT | RATE_PROPAGATES, - .rate_offset = 0, /* bits 0-4 */ + .init = &omap2_init_clksel_parent, + .clksel_reg = OMAP_CM_REGADDR(MPU_MOD, CM_CLKSEL), + .clksel_mask = OMAP24XX_CLKSEL_MPU_MASK, .recalc = &omap2_clksel_recalc, + .round_rate = &omap2_clksel_round_rate, + .set_rate = &omap2_clksel_set_rate }; - +#ifdef OLD_CK /* * DSP (2430-IVA2.1) (2420-UMA+IVA1) clock domain * Clocks: @@ -1933,7 +2028,7 @@ static struct clk mmchsdb2_fck = { .enable_bit = 17, .recalc = &omap2_followparent_recalc, }; - +#endif /* OLD_CK */ /* * This clock is a composite clock which does entire set changes then * forces a rebalance. It keys on the MPU speed, but it really could @@ -1953,11 +2048,10 @@ static struct clk virt_prcm_set = { .flags = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X | VIRTUAL_CLOCK | ALWAYS_ENABLED | DELAYED_APP, .parent = &mpu_ck, /* Indexed by mpu speed, no parent */ - .recalc = &omap2_mpu_recalc, /* sets are keyed on mpu rate */ .set_rate = &omap2_select_table_rate, .round_rate = &omap2_round_to_table_rate, }; - +#ifdef OLD_CK static struct clk *onchip_clks[] = { /* external root sources */ &func_32k_ck, @@ -2107,5 +2201,17 @@ static struct clk *onchip_clks[] = { &mmchsdb1_fck, &mmchsdb2_fck, }; +#endif /* OLD_CK */ + +static struct clk *onchip_24xx_clks[] __initdata = { + /* external root sources */ + &osc_ck, + &sys_ck, + /* internal analog sources */ + &dpll_ck, + &apll96_ck, + &apll54_ck, +}; #endif + diff --git a/arch/arm/mach-omap2/memory.c b/arch/arm/mach-omap2/memory.c index b56c1a0..1247908 100644 --- a/arch/arm/mach-omap2/memory.c +++ b/arch/arm/mach-omap2/memory.c @@ -53,6 +53,54 @@ u32 omap2_memory_get_type(void) return mem_timings.m_type; } +/* + * Check the DLL lock state, and return tue if running in unlock mode. + * This is needed to compensate for the shifted DLL value in unlock mode. + */ +u32 omap2_dll_force_needed(void) +{ + /* dlla and dllb are a set */ + u32 dll_state = sdrc_read_reg(SDRC_DLLA_CTRL); + + if ((dll_state & (1 << 2)) == (1 << 2)) + return 1; + else + return 0; +} + +/* + * 'level' is the value to store to CM_CLKSEL2_PLL.CORE_CLK_SRC. + * Practical values are CORE_CLK_SRC_DPLL (for CORE_CLK = DPLL_CLK) or + * CORE_CLK_SRC_DPLL_X2 (for CORE_CLK = * DPLL_CLK * 2) + */ +u32 omap2_reprogram_sdrc(u32 level, u32 force) +{ + u32 dll_ctrl, m_type; + u32 prev = curr_perf_level; + unsigned long flags; + + if ((curr_perf_level == level) && !force) + return prev; + + if (level == CORE_CLK_SRC_DPLL) { + dll_ctrl = omap2_memory_get_slow_dll_ctrl(); + } else if (level == CORE_CLK_SRC_DPLL_X2) { + dll_ctrl = omap2_memory_get_fast_dll_ctrl(); + } else { + return prev; + } + + m_type = omap2_memory_get_type(); + + local_irq_save(flags); + __raw_writel(0xffff, OMAP24XX_PRCM_VOLTSETUP); + omap2_sram_reprogram_sdrc(level, dll_ctrl, m_type); + curr_perf_level = level; + local_irq_restore(flags); + + return prev; +} + void omap2_init_memory_params(u32 force_lock_to_unlock_mode) { unsigned long dll_cnt; diff --git a/arch/arm/mach-omap2/memory.h b/arch/arm/mach-omap2/memory.h index d212eea..9a280b5 100644 --- a/arch/arm/mach-omap2/memory.h +++ b/arch/arm/mach-omap2/memory.h @@ -32,3 +32,5 @@ extern void omap2_init_memory_params(u32 force_lock_to_unlock_mode); extern u32 omap2_memory_get_slow_dll_ctrl(void); extern u32 omap2_memory_get_fast_dll_ctrl(void); extern u32 omap2_memory_get_type(void); +u32 omap2_dll_force_needed(void); +u32 omap2_reprogram_sdrc(u32 level, u32 force); diff --git a/arch/arm/plat-omap/clock.c b/arch/arm/plat-omap/clock.c index 0a60324..32a533b 100644 --- a/arch/arm/plat-omap/clock.c +++ b/arch/arm/plat-omap/clock.c @@ -304,6 +304,23 @@ void propagate_rate(struct clk * tclk) } } +/** + * recalculate_root_clocks - recalculate and propagate all root clocks + * + * Recalculates all root clocks (clocks with no parent), which if the + * clock's .recalc is set correctly, should also propagate their rates. + * Called at init. + */ +void recalculate_root_clocks(void) +{ + struct clk *clkp; + + list_for_each_entry(clkp, &clocks, node) { + if (unlikely(!clkp->parent) && likely((u32)clkp->recalc)) + clkp->recalc(clkp); + } +} + int clk_register(struct clk *clk) { if (clk == NULL || IS_ERR(clk)) @@ -358,6 +375,30 @@ void clk_allow_idle(struct clk *clk) } EXPORT_SYMBOL(clk_allow_idle); +void clk_enable_init_clocks(void) +{ + struct clk *clkp; + + list_for_each_entry(clkp, &clocks, node) { + if (clkp->flags & ENABLE_ON_INIT) + clk_enable(clkp); + } +} +EXPORT_SYMBOL(clk_enable_init_clocks); + +#ifdef CONFIG_CPU_FREQ +void clk_init_cpufreq_table(struct cpufreq_frequency_table **table) +{ + unsigned long flags; + + spin_lock_irqsave(&clockfw_lock, flags); + if (arch_clock->clk_init_cpufreq_table) + arch_clock->clk_init_cpufreq_table(table); + spin_unlock_irqrestore(&clockfw_lock, flags); +} +EXPORT_SYMBOL(clk_init_cpufreq_table); +#endif + /*-------------------------------------------------------------------------*/ #ifdef CONFIG_OMAP_RESET_CLOCKS @@ -396,3 +437,4 @@ int __init clk_init(struct clk_functions * custom_clocks) return 0; } + |
