diff options
author | Tony Lindgren <tony@atomide.com> | 2011-09-15 16:06:11 -0700 |
---|---|---|
committer | Tony Lindgren <tony@atomide.com> | 2011-09-15 16:06:11 -0700 |
commit | ceb1c532ba6220900e61ec7073a9234661efa450 (patch) | |
tree | b7c5b94f09a6893625bb12b7795de3d44fece450 /arch/arm | |
parent | 8f5b5a41ebc750ffcc2c410371b2b4998955709e (diff) | |
parent | 00c46b3069c1ee9aa31db3057e9224685af52efa (diff) |
Merge branch 'omap_chip_remove_cleanup_3.2' of git://git.pwsan.com/linux-2.6 into cleanup
Diffstat (limited to 'arch/arm')
35 files changed, 1288 insertions, 1789 deletions
diff --git a/arch/arm/kernel/calls.S b/arch/arm/kernel/calls.S index 80f7896cc01..9943e9e74a1 100644 --- a/arch/arm/kernel/calls.S +++ b/arch/arm/kernel/calls.S @@ -178,7 +178,7 @@ CALL(sys_ni_syscall) /* vm86 */ CALL(sys_ni_syscall) /* was sys_query_module */ CALL(sys_poll) - CALL(sys_nfsservctl) + CALL(sys_ni_syscall) /* was nfsservctl */ /* 170 */ CALL(sys_setresgid16) CALL(sys_getresgid16) CALL(sys_prctl) diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile index b1501bda04b..cd45c045ab8 100644 --- a/arch/arm/mach-omap2/Makefile +++ b/arch/arm/mach-omap2/Makefile @@ -116,9 +116,12 @@ obj-$(CONFIG_ARCH_OMAP4) += $(powerdomain-common) \ obj-$(CONFIG_ARCH_OMAP2) += clockdomain.o \ clockdomain2xxx_3xxx.o \ clockdomains2xxx_3xxx_data.o +obj-$(CONFIG_SOC_OMAP2420) += clockdomains2420_data.o +obj-$(CONFIG_SOC_OMAP2430) += clockdomains2430_data.o obj-$(CONFIG_ARCH_OMAP3) += clockdomain.o \ clockdomain2xxx_3xxx.o \ - clockdomains2xxx_3xxx_data.o + clockdomains2xxx_3xxx_data.o \ + clockdomains3xxx_data.o obj-$(CONFIG_ARCH_OMAP4) += clockdomain.o \ clockdomain44xx.o \ clockdomains44xx_data.o diff --git a/arch/arm/mach-omap2/clock3xxx_data.c b/arch/arm/mach-omap2/clock3xxx_data.c index ffd55b1c439..dadb8c6c011 100644 --- a/arch/arm/mach-omap2/clock3xxx_data.c +++ b/arch/arm/mach-omap2/clock3xxx_data.c @@ -3078,6 +3078,7 @@ static struct clk gpt12_fck = { .name = "gpt12_fck", .ops = &clkops_null, .parent = &secure_32k_fck, + .clkdm_name = "wkup_clkdm", .recalc = &followparent_recalc, }; @@ -3085,6 +3086,7 @@ static struct clk wdt1_fck = { .name = "wdt1_fck", .ops = &clkops_null, .parent = &secure_32k_fck, + .clkdm_name = "wkup_clkdm", .recalc = &followparent_recalc, }; @@ -3470,7 +3472,16 @@ int __init omap3xxx_clk_init(void) struct omap_clk *c; u32 cpu_clkflg = 0; - if (cpu_is_omap3517()) { + /* + * 3505 must be tested before 3517, since 3517 returns true + * for both AM3517 chips and AM3517 family chips, which + * includes 3505. Unfortunately there's no obvious family + * test for 3517/3505 :-( + */ + if (cpu_is_omap3505()) { + cpu_mask = RATE_IN_34XX; + cpu_clkflg = CK_3505; + } else if (cpu_is_omap3517()) { cpu_mask = RATE_IN_34XX; cpu_clkflg = CK_3517; } else if (cpu_is_omap3505()) { diff --git a/arch/arm/mach-omap2/clock44xx_data.c b/arch/arm/mach-omap2/clock44xx_data.c index 2af0e3f00ce..c0b6fbda340 100644 --- a/arch/arm/mach-omap2/clock44xx_data.c +++ b/arch/arm/mach-omap2/clock44xx_data.c @@ -3376,10 +3376,18 @@ int __init omap4xxx_clk_init(void) } else if (cpu_is_omap446x()) { cpu_mask = RATE_IN_4460; cpu_clkflg = CK_446X; + } else { + return 0; } clk_init(&omap2_clk_functions); - omap2_clk_disable_clkdm_control(); + + /* + * Must stay commented until all OMAP SoC drivers are + * converted to runtime PM, or drivers may start crashing + * + * omap2_clk_disable_clkdm_control(); + */ for (c = omap44xx_clks; c < omap44xx_clks + ARRAY_SIZE(omap44xx_clks); c++) diff --git a/arch/arm/mach-omap2/clockdomain.c b/arch/arm/mach-omap2/clockdomain.c index ab7db083f97..8480ee4344e 100644 --- a/arch/arm/mach-omap2/clockdomain.c +++ b/arch/arm/mach-omap2/clockdomain.c @@ -73,9 +73,6 @@ static int _clkdm_register(struct clockdomain *clkdm) if (!clkdm || !clkdm->name) return -EINVAL; - if (!omap_chip_is(clkdm->omap_chip)) - return -EINVAL; - pwrdm = pwrdm_lookup(clkdm->pwrdm.name); if (!pwrdm) { pr_err("clockdomain: %s: powerdomain %s does not exist\n", @@ -105,13 +102,10 @@ static struct clkdm_dep *_clkdm_deps_lookup(struct clockdomain *clkdm, { struct clkdm_dep *cd; - if (!clkdm || !deps || !omap_chip_is(clkdm->omap_chip)) + if (!clkdm || !deps) return ERR_PTR(-EINVAL); for (cd = deps; cd->clkdm_name; cd++) { - if (!omap_chip_is(cd->omap_chip)) - continue; - if (!cd->clkdm && cd->clkdm_name) cd->clkdm = _clkdm_lookup(cd->clkdm_name); @@ -148,9 +142,6 @@ static void _autodep_lookup(struct clkdm_autodep *autodep) if (!autodep) return; - if (!omap_chip_is(autodep->omap_chip)) - return; - clkdm = clkdm_lookup(autodep->clkdm.name); if (!clkdm) { pr_err("clockdomain: autodeps: clockdomain %s does not exist\n", @@ -182,9 +173,6 @@ void _clkdm_add_autodeps(struct clockdomain *clkdm) if (IS_ERR(autodep->clkdm.ptr)) continue; - if (!omap_chip_is(autodep->omap_chip)) - continue; - pr_debug("clockdomain: adding %s sleepdep/wkdep for " "clkdm %s\n", autodep->clkdm.ptr->name, clkdm->name); @@ -216,9 +204,6 @@ void _clkdm_del_autodeps(struct clockdomain *clkdm) if (IS_ERR(autodep->clkdm.ptr)) continue; - if (!omap_chip_is(autodep->omap_chip)) - continue; - pr_debug("clockdomain: removing %s sleepdep/wkdep for " "clkdm %s\n", autodep->clkdm.ptr->name, clkdm->name); @@ -243,8 +228,6 @@ static void _resolve_clkdm_deps(struct clockdomain *clkdm, struct clkdm_dep *cd; for (cd = clkdm_deps; cd && cd->clkdm_name; cd++) { - if (!omap_chip_is(cd->omap_chip)) - continue; if (cd->clkdm) continue; cd->clkdm = _clkdm_lookup(cd->clkdm_name); @@ -257,43 +240,113 @@ static void _resolve_clkdm_deps(struct clockdomain *clkdm, /* Public functions */ /** - * clkdm_init - set up the clockdomain layer - * @clkdms: optional pointer to an array of clockdomains to register - * @init_autodeps: optional pointer to an array of autodeps to register - * @custom_funcs: func pointers for arch specific implementations - * - * Set up internal state. If a pointer to an array of clockdomains - * @clkdms was supplied, loop through the list of clockdomains, - * register all that are available on the current platform. Similarly, - * if a pointer to an array of clockdomain autodependencies - * @init_autodeps was provided, register those. No return value. + * clkdm_register_platform_funcs - register clockdomain implementation fns + * @co: func pointers for arch specific implementations + * + * Register the list of function pointers used to implement the + * clockdomain functions on different OMAP SoCs. Should be called + * before any other clkdm_register*() function. Returns -EINVAL if + * @co is null, -EEXIST if platform functions have already been + * registered, or 0 upon success. + */ +int clkdm_register_platform_funcs(struct clkdm_ops *co) +{ + if (!co) + return -EINVAL; + + if (arch_clkdm) + return -EEXIST; + + arch_clkdm = co; + + return 0; +}; + +/** + * clkdm_register_clkdms - register SoC clockdomains + * @cs: pointer to an array of struct clockdomain to register + * + * Register the clockdomains available on a particular OMAP SoC. Must + * be called after clkdm_register_platform_funcs(). May be called + * multiple times. Returns -EACCES if called before + * clkdm_register_platform_funcs(); -EINVAL if the argument @cs is + * null; or 0 upon success. */ -void clkdm_init(struct clockdomain **clkdms, - struct clkdm_autodep *init_autodeps, - struct clkdm_ops *custom_funcs) +int clkdm_register_clkdms(struct clockdomain **cs) { struct clockdomain **c = NULL; - struct clockdomain *clkdm; - struct clkdm_autodep *autodep = NULL; - if (!custom_funcs) - WARN(1, "No custom clkdm functions registered\n"); - else - arch_clkdm = custom_funcs; + if (!arch_clkdm) + return -EACCES; + + if (!cs) + return -EINVAL; + + for (c = cs; *c; c++) + _clkdm_register(*c); + + return 0; +} + +/** + * clkdm_register_autodeps - register autodeps (if required) + * @ia: pointer to a static array of struct clkdm_autodep to register + * + * Register clockdomain "automatic dependencies." These are + * clockdomain wakeup and sleep dependencies that are automatically + * added whenever the first clock inside a clockdomain is enabled, and + * removed whenever the last clock inside a clockdomain is disabled. + * These are currently only used on OMAP3 devices, and are deprecated, + * since they waste energy. However, until the OMAP2/3 IP block + * enable/disable sequence can be converted to match the OMAP4 + * sequence, they are needed. + * + * Must be called only after all of the SoC clockdomains are + * registered, since the function will resolve autodep clockdomain + * names into clockdomain pointers. + * + * The struct clkdm_autodep @ia array must be static, as this function + * does not copy the array elements. + * + * Returns -EACCES if called before any clockdomains have been + * registered, -EINVAL if called with a null @ia argument, -EEXIST if + * autodeps have already been registered, or 0 upon success. + */ +int clkdm_register_autodeps(struct clkdm_autodep *ia) +{ + struct clkdm_autodep *a = NULL; - if (clkdms) - for (c = clkdms; *c; c++) - _clkdm_register(*c); + if (list_empty(&clkdm_list)) + return -EACCES; + + if (!ia) + return -EINVAL; - autodeps = init_autodeps; if (autodeps) - for (autodep = autodeps; autodep->clkdm.ptr; autodep++) - _autodep_lookup(autodep); + return -EEXIST; + + autodeps = ia; + for (a = autodeps; a->clkdm.ptr; a++) + _autodep_lookup(a); + + return 0; +} + +/** + * clkdm_complete_init - set up the clockdomain layer + * + * Put all clockdomains into software-supervised mode; PM code should + * later enable hardware-supervised mode as appropriate. Must be + * called after clkdm_register_clkdms(). Returns -EACCES if called + * before clkdm_register_clkdms(), or 0 upon success. + */ +int clkdm_complete_init(void) +{ + struct clockdomain *clkdm; + + if (list_empty(&clkdm_list)) + return -EACCES; - /* - * Put all clockdomains into software-supervised mode; PM code - * should later enable hardware-supervised mode as appropriate - */ list_for_each_entry(clkdm, &clkdm_list, node) { if (clkdm->flags & CLKDM_CAN_FORCE_WAKEUP) clkdm_wakeup(clkdm); @@ -306,6 +359,8 @@ void clkdm_init(struct clockdomain **clkdms, _resolve_clkdm_deps(clkdm, clkdm->sleepdep_srcs); clkdm_clear_all_sleepdeps(clkdm); } + + return 0; } /** @@ -747,6 +802,7 @@ int clkdm_wakeup(struct clockdomain *clkdm) spin_lock_irqsave(&clkdm->lock, flags); clkdm->_flags &= ~_CLKDM_FLAG_HWSUP_ENABLED; ret = arch_clkdm->clkdm_wakeup(clkdm); + ret |= pwrdm_state_switch(clkdm->pwrdm.ptr); spin_unlock_irqrestore(&clkdm->lock, flags); return ret; } @@ -818,6 +874,7 @@ void clkdm_deny_idle(struct clockdomain *clkdm) spin_lock_irqsave(&clkdm->lock, flags); clkdm->_flags &= ~_CLKDM_FLAG_HWSUP_ENABLED; arch_clkdm->clkdm_deny_idle(clkdm); + pwrdm_state_switch(clkdm->pwrdm.ptr); spin_unlock_irqrestore(&clkdm->lock, flags); } diff --git a/arch/arm/mach-omap2/clockdomain.h b/arch/arm/mach-omap2/clockdomain.h index 1e50c88b8a0..f7b58609bad 100644 --- a/arch/arm/mach-omap2/clockdomain.h +++ b/arch/arm/mach-omap2/clockdomain.h @@ -45,7 +45,6 @@ /** * struct clkdm_autodep - clkdm deps to add when entering/exiting hwsup mode * @clkdm: clockdomain to add wkdep+sleepdep on - set name member only - * @omap_chip: OMAP chip types that this autodep is valid on * * A clockdomain that should have wkdeps and sleepdeps added when a * clockdomain should stay active in hwsup mode; and conversely, @@ -60,14 +59,12 @@ struct clkdm_autodep { const char *name; struct clockdomain *ptr; } clkdm; - const struct omap_chip_id omap_chip; }; /** * struct clkdm_dep - encode dependencies between clockdomains * @clkdm_name: clockdomain name * @clkdm: pointer to the struct clockdomain of @clkdm_name - * @omap_chip: OMAP chip types that this dependency is valid on * @wkdep_usecount: Number of wakeup dependencies causing this clkdm to wake * @sleepdep_usecount: Number of sleep deps that could prevent clkdm from idle * @@ -81,7 +78,6 @@ struct clkdm_dep { struct clockdomain *clkdm; atomic_t wkdep_usecount; atomic_t sleepdep_usecount; - const struct omap_chip_id omap_chip; }; /* Possible flags for struct clockdomain._flags */ @@ -101,7 +97,6 @@ struct clkdm_dep { * @clkdm_offs: (OMAP4 only) CM clockdomain register offset * @wkdep_srcs: Clockdomains that can be told to wake this powerdomain up * @sleepdep_srcs: Clockdomains that can be told to keep this clkdm from inact - * @omap_chip: OMAP chip types that this clockdomain is valid on * @usecount: Usecount tracking * @node: list_head to link all clockdomains together * @@ -126,7 +121,6 @@ struct clockdomain { const u16 clkdm_offs; struct clkdm_dep *wkdep_srcs; struct clkdm_dep *sleepdep_srcs; - const struct omap_chip_id omap_chip; atomic_t usecount; struct list_head node; spinlock_t lock; @@ -166,8 +160,11 @@ struct clkdm_ops { int (*clkdm_clk_disable)(struct clockdomain *clkdm); }; -void clkdm_init(struct clockdomain **clkdms, struct clkdm_autodep *autodeps, - struct clkdm_ops *custom_funcs); +int clkdm_register_platform_funcs(struct clkdm_ops *co); +int clkdm_register_autodeps(struct clkdm_autodep *ia); +int clkdm_register_clkdms(struct clockdomain **c); +int clkdm_complete_init(void); + struct clockdomain *clkdm_lookup(const char *name); int clkdm_for_each(int (*fn)(struct clockdomain *clkdm, void *user), @@ -195,7 +192,8 @@ int clkdm_clk_disable(struct clockdomain *clkdm, struct clk *clk); int clkdm_hwmod_enable(struct clockdomain *clkdm, struct omap_hwmod *oh); int clkdm_hwmod_disable(struct clockdomain *clkdm, struct omap_hwmod *oh); -extern void __init omap2xxx_clockdomains_init(void); +extern void __init omap242x_clockdomains_init(void); +extern void __init omap243x_clockdomains_init(void); extern void __init omap3xxx_clockdomains_init(void); extern void __init omap44xx_clockdomains_init(void); extern void _clkdm_add_autodeps(struct clockdomain *clkdm); @@ -205,4 +203,10 @@ extern struct clkdm_ops omap2_clkdm_operations; extern struct clkdm_ops omap3_clkdm_operations; extern struct clkdm_ops omap4_clkdm_operations; +extern struct clkdm_dep gfx_24xx_wkdeps[]; +extern struct clkdm_dep dsp_24xx_wkdeps[]; +extern struct clockdomain wkup_common_clkdm; +extern struct clockdomain prm_common_clkdm; +extern struct clockdomain cm_common_clkdm; + #endif diff --git a/arch/arm/mach-omap2/clockdomain2xxx_3xxx.c b/arch/arm/mach-omap2/clockdomain2xxx_3xxx.c index f740edb111f..a0d68dbecfa 100644 --- a/arch/arm/mach-omap2/clockdomain2xxx_3xxx.c +++ b/arch/arm/mach-omap2/clockdomain2xxx_3xxx.c @@ -52,8 +52,6 @@ static int omap2_clkdm_clear_all_wkdeps(struct clockdomain *clkdm) u32 mask = 0; for (cd = clkdm->wkdep_srcs; cd && cd->clkdm_name; cd++) { - if (!omap_chip_is(cd->omap_chip)) - continue; if (!cd->clkdm) continue; /* only happens if data is erroneous */ @@ -98,8 +96,6 @@ static int omap3_clkdm_clear_all_sleepdeps(struct clockdomain *clkdm) u32 mask = 0; for (cd = clkdm->sleepdep_srcs; cd && cd->clkdm_name; cd++) { - if (!omap_chip_is(cd->omap_chip)) - continue; if (!cd->clkdm) continue; /* only happens if data is erroneous */ diff --git a/arch/arm/mach-omap2/clockdomain44xx.c b/arch/arm/mach-omap2/clockdomain44xx.c index b43706aa08b..935c7f03dab 100644 --- a/arch/arm/mach-omap2/clockdomain44xx.c +++ b/arch/arm/mach-omap2/clockdomain44xx.c @@ -52,8 +52,6 @@ static int omap4_clkdm_clear_all_wkup_sleep_deps(struct clockdomain *clkdm) u32 mask = 0; for (cd = clkdm->wkdep_srcs; cd && cd->clkdm_name; cd++) { - if (!omap_chip_is(cd->omap_chip)) - continue; if (!cd->clkdm) continue; /* only happens if data is erroneous */ diff --git a/arch/arm/mach-omap2/clockdomains2420_data.c b/arch/arm/mach-omap2/clockdomains2420_data.c new file mode 100644 index 00000000000..0ab8e46d5b2 --- /dev/null +++ b/arch/arm/mach-omap2/clockdomains2420_data.c @@ -0,0 +1,154 @@ +/* + * OMAP2420 clockdomains + * + * Copyright (C) 2008-2011 Texas Instruments, Inc. + * Copyright (C) 2008-2010 Nokia Corporation + * + * Paul Walmsley, Jouni Högander + * + * This file contains clockdomains and clockdomain wakeup dependencies + * for OMAP2420 chips. Some notes: + * + * A useful validation rule for struct clockdomain: Any clockdomain + * referenced by a wkdep_srcs must have a dep_bit assigned. So + * wkdep_srcs are really just software-controllable dependencies. + * Non-software-controllable dependencies do exist, but they are not + * encoded below (yet). + * + * 24xx does not support programmable sleep dependencies (SLEEPDEP) + * + * The overly-specific dep_bit names are due to a bit name collision + * with CM_FCLKEN_{DSP,IVA2}. The DSP/IVA2 PM_WKDEP and CM_SLEEPDEP shift + * value are the same for all powerdomains: 2 + * + * XXX should dep_bit be a mask, so we can test to see if it is 0 as a + * sanity check? + * XXX encode hardware fixed wakeup dependencies -- esp. for 3430 CORE + */ + +/* + * To-Do List + * -> Port the Sleep/Wakeup dependencies for the domains + * from the Power domain framework + */ + +#include <linux/kernel.h> +#include <linux/io.h> + +#include "clockdomain.h" +#include "prm2xxx_3xxx.h" +#include "cm2xxx_3xxx.h" +#include "cm-regbits-24xx.h" +#include "prm-regbits-24xx.h" + +/* + * Clockdomain dependencies for wkdeps + * + * XXX Hardware dependencies (e.g., dependencies that cannot be + * changed in software) are not included here yet, but should be. + */ + +/* Wakeup dependency source arrays */ + +/* 2420-specific possible wakeup dependencies */ + +/* 2420 PM_WKDEP_MPU: CORE, DSP, WKUP */ +static struct clkdm_dep mpu_2420_wkdeps[] = { + { .clkdm_name = "core_l3_clkdm" }, + { .clkdm_name = "core_l4_clkdm" }, + { .clkdm_name = "dsp_clkdm" }, + { .clkdm_name = "wkup_clkdm" }, + { NULL }, +}; + +/* 2420 PM_WKDEP_CORE: DSP, GFX, MPU, WKUP */ +static struct clkdm_dep core_2420_wkdeps[] = { + { .clkdm_name = "dsp_clkdm" }, + { .clkdm_name = "gfx_clkdm" }, + { .clkdm_name = "mpu_clkdm" }, + { .clkdm_name = "wkup_clkdm" }, + { NULL }, +}; + +/* + * 2420-only clockdomains + */ + +static struct clockdomain mpu_2420_clkdm = { + .name = "mpu_clkdm", + .pwrdm = { .name = "mpu_pwrdm" }, + .flags = CLKDM_CAN_HWSUP, + .wkdep_srcs = mpu_2420_wkdeps, + .clktrctrl_mask = OMAP24XX_AUTOSTATE_MPU_MASK, +}; + +static struct clockdomain iva1_2420_clkdm = { + .name = "iva1_clkdm", + .pwrdm = { .name = "dsp_pwrdm" }, + .flags = CLKDM_CAN_HWSUP_SWSUP, + .dep_bit = OMAP24XX_PM_WKDEP_MPU_EN_DSP_SHIFT, + .wkdep_srcs = dsp_24xx_wkdeps, + .clktrctrl_mask = OMAP2420_AUTOSTATE_IVA_MASK, +}; + +static struct clockdomain dsp_2420_clkdm = { + .name = "dsp_clkdm", + .pwrdm = { .name = "dsp_pwrdm" }, + .flags = CLKDM_CAN_HWSUP_SWSUP, + .clktrctrl_mask = OMAP24XX_AUTOSTATE_DSP_MASK, +}; + +static struct clockdomain gfx_2420_clkdm = { + .name = "gfx_clkdm", + .pwrdm = { .name = "gfx_pwrdm" }, + .flags = CLKDM_CAN_HWSUP_SWSUP, + .wkdep_srcs = gfx_24xx_wkdeps, + .clktrctrl_mask = OMAP24XX_AUTOSTATE_GFX_MASK, +}; + +static struct clockdomain core_l3_2420_clkdm = { + .name = "core_l3_clkdm", + .pwrdm = { .name = "core_pwrdm" }, + .flags = CLKDM_CAN_HWSUP, + .wkdep_srcs = core_2420_wkdeps, + .clktrctrl_mask = OMAP24XX_AUTOSTATE_L3_MASK, +}; + +static struct clockdomain core_l4_2420_clkdm = { + .name = "core_l4_clkdm", + .pwrdm = { .name = "core_pwrdm" }, + .flags = CLKDM_CAN_HWSUP, + .wkdep_srcs = core_2420_wkdeps, + .clktrctrl_mask = OMAP24XX_AUTOSTATE_L4_MASK, +}; + +static struct clockdomain dss_2420_clkdm = { + .name = "dss_clkdm", + .pwrdm = { .name = "core_pwrdm" }, + .flags = CLKDM_CAN_HWSUP, + .clktrctrl_mask = OMAP24XX_AUTOSTATE_DSS_MASK, +}; + +static struct clockdomain *clockdomains_omap242x[] __initdata = { + &wkup_common_clkdm, + &cm_common_clkdm, + &prm_common_clkdm, + &mpu_2420_clkdm, + &iva1_2420_clkdm, + &dsp_2420_clkdm, + &gfx_2420_clkdm, + &core_l3_2420_clkdm, + &core_l4_2420_clkdm, + &dss_2420_clkdm, + NULL, +}; + +void __init omap242x_clockdomains_init(void) +{ + if (!cpu_is_omap242x()) + return; + + clkdm_register_platform_funcs(&omap2_clkdm_operations); + clkdm_register_clkdms(clockdomains_omap242x); + clkdm_complete_init(); +} diff --git a/arch/arm/mach-omap2/clockdomains2430_data.c b/arch/arm/mach-omap2/clockdomains2430_data.c new file mode 100644 index 00000000000..3645ed04489 --- /dev/null +++ b/arch/arm/mach-omap2/clockdomains2430_data.c @@ -0,0 +1,181 @@ +/* + * OMAP2xxx clockdomains + * + * Copyright (C) 2008-2009 Texas Instruments, Inc. + * Copyright (C) 2008-2010 Nokia Corporation + * + * Paul Walmsley, Jouni Högander + * + * This file contains clockdomains and clockdomain wakeup dependencies + * for OMAP2xxx chips. Some notes: + * + * A useful validation rule for struct clockdomain: Any clockdomain + * referenced by a wkdep_srcs must have a dep_bit assigned. So + * wkdep_srcs are really just software-controllable dependencies. + * Non-software-controllable dependencies do exist, but they are not + * encoded below (yet). + * + * 24xx does not support programmable sleep dependencies (SLEEPDEP) + * + * The overly-specific dep_bit names are due to a bit name collision + * with CM_FCLKEN_{DSP,IVA2}. The DSP/IVA2 PM_WKDEP and CM_SLEEPDEP shift + * value are the same for all powerdomains: 2 + * + * XXX should dep_bit be a mask, so we can test to see if it is 0 as a + * sanity check? + * XXX encode hardware fixed wakeup dependencies -- esp. for 3430 CORE + */ + +/* + * To-Do List + * -> Port the Sleep/Wakeup dependencies for the domains + * from the Power domain framework + */ + +#include <linux/kernel.h> +#include <linux/io.h> + +#include "clockdomain.h" +#include "prm2xxx_3xxx.h" +#include "cm2xxx_3xxx.h" +#include "cm-regbits-24xx.h" +#include "prm-regbits-24xx.h" + +/* + * Clockdomain dependencies for wkdeps + * + * XXX Hardware dependencies (e.g., dependencies that cannot be + * changed in software) are not included here yet, but should be. + */ + +/* Wakeup dependency source arrays */ + +/* 2430-specific possible wakeup dependencies */ + +/* 2430 PM_WKDEP_CORE: DSP, GFX, MPU, WKUP, MDM */ +static struct clkdm_dep core_2430_wkdeps[] = { + { .clkdm_name = "dsp_clkdm" }, + { .clkdm_name = "gfx_clkdm" }, + { .clkdm_name = "mpu_clkdm" }, + { .clkdm_name = "wkup_clkdm" }, + { .clkdm_name = "mdm_clkdm" }, + { NULL }, +}; + +/* 2430 PM_WKDEP_MPU: CORE, DSP, WKUP, MDM */ +static struct clkdm_dep mpu_2430_wkdeps[] = { + { .clkdm_name = "core_l3_clkdm" }, + { .clkdm_name = "core_l4_clkdm" }, + { .clkdm_name = "dsp_clkdm" }, + { .clkdm_name = "wkup_clkdm" }, + { .clkdm_name = "mdm_clkdm" }, + { NULL }, +}; + +/* 2430 PM_WKDEP_MDM: CORE, MPU, WKUP */ +static struct clkdm_dep mdm_2430_wkdeps[] = { + { .clkdm_name = "core_l3_clkdm" }, + { .clkdm_name = "core_l4_clkdm" }, + { .clkdm_name = "mpu_clkdm" }, + { .clkdm_name = "wkup_clkdm" }, + { NULL }, +}; + +/* + * 2430-only clockdomains + */ + +static struct clockdomain mpu_2430_clkdm = { + .name = "mpu_clkdm", + .pwrdm = { .name = "mpu_pwrdm" }, + .flags = CLKDM_CAN_HWSUP_SWSUP, + .wkdep_srcs = mpu_2430_wkdeps, + .clktrctrl_mask = OMAP24XX_AUTOSTATE_MPU_MASK, +}; + +/* Another case of bit name collisions between several registers: EN_MDM */ +static struct clockdomain mdm_clkdm = { + .name = "mdm_clkdm", + .pwrdm = { .name = "mdm_pwrdm" }, + .flags = CLKDM_CAN_HWSUP_SWSUP, + .dep_bit = OMAP2430_PM_WKDEP_MPU_EN_MDM_SHIFT, + .wkdep_srcs = mdm_2430_wkdeps, + .clktrctrl_mask = OMAP2430_AUTOSTATE_MDM_MASK, +}; + +static struct clockdomain dsp_2430_clkdm = { + .name = "dsp_clkdm", + .pwrdm = { .name = "dsp_pwrdm" }, + .flags = CLKDM_CAN_HWSUP_SWSUP, + .dep_bit = OMAP24XX_PM_WKDEP_MPU_EN_DSP_SHIFT, + .wkdep_srcs = dsp_24xx_wkdeps, + .clktrctrl_mask = OMAP24XX_AUTOSTATE_DSP_MASK, +}; + +static struct clockdomain gfx_2430_clkdm = { + .name = "gfx_clkdm", + .pwrdm = { .name = "gfx_pwrdm" }, + .flags = CLKDM_CAN_HWSUP_SWSUP, + .wkdep_srcs = gfx_24xx_wkdeps, + .clktrctrl_mask = OMAP24XX_AUTOSTATE_GFX_MASK, +}; + +/* + * XXX add usecounting for clkdm dependencies, otherwise the presence + * of a single dep bit for core_l3_24xx_clkdm and core_l4_24xx_clkdm + * could cause trouble + */ +static struct clockdomain core_l3_2430_clkdm = { + .name = "core_l3_clkdm", + .pwrdm = { .name = "core_pwrdm" }, + .flags = CLKDM_CAN_HWSUP, + .dep_bit = OMAP24XX_EN_CORE_SHIFT, + .wkdep_srcs = core_2430_wkdeps, + .clktrctrl_mask = OMAP24XX_AUTOSTATE_L3_MASK, +}; + +/* + * XXX add usecounting for clkdm dependencies, otherwise the presence + * of a single dep bit for core_l3_24xx_clkdm and core_l4_24xx_clkdm + * could cause trouble + */ +static struct clockdomain core_l4_2430_clkdm = { + .name = "core_l4_clkdm", + .pwrdm = { .name = "core_pwrdm" }, + .flags = CLKDM_CAN_HWSUP, + .dep_bit = OMAP24XX_EN_CORE_SHIFT, + .wkdep_srcs = core_2430_wkdeps, + .clktrctrl_mask = OMAP24XX_AUTOSTATE_L4_MASK, +}; + +static struct clockdo |