diff options
Diffstat (limited to 'arch/arm/mach-omap2/clockdomains2420_data.c')
-rw-r--r-- | arch/arm/mach-omap2/clockdomains2420_data.c | 154 |
1 files changed, 154 insertions, 0 deletions
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(); +} |