From 4d0df9c1e94f32a9695be352fead3167fb5135c7 Mon Sep 17 00:00:00 2001 From: Andrii Tseglytskyi Date: Mon, 20 May 2013 22:42:08 +0000 Subject: OMAP3+: introduce generic ABB support Adaptive Body Biasing (ABB) modulates transistor bias voltages dynamically in order to optimize switching speed versus leakage. Adaptive Body-Bias ldos are present for some voltage domains starting with OMAP3630. There are three modes of operation: * Bypass - the default, it just follows the vdd voltage * Foward Body-Bias - applies voltage bias to increase transistor performance at the cost of power. Used to operate safely at high OPPs. * Reverse Body-Bias - applies voltage bias to decrease leakage and save power. Used to save power at lower OPPs. Signed-off-by: Andrii Tseglytskyi Acked-by: Nishanth Menon --- arch/arm/include/asm/arch-omap3/omap3.h | 7 +++++++ arch/arm/include/asm/arch-omap4/omap.h | 8 ++++++++ arch/arm/include/asm/arch-omap5/omap.h | 13 +++++++++++++ arch/arm/include/asm/omap_common.h | 22 ++++++++++++++++++++++ 4 files changed, 50 insertions(+) (limited to 'arch/arm/include') diff --git a/arch/arm/include/asm/arch-omap3/omap3.h b/arch/arm/include/asm/arch-omap3/omap3.h index 2b5e9aeae1..c57599a938 100644 --- a/arch/arm/include/asm/arch-omap3/omap3.h +++ b/arch/arm/include/asm/arch-omap3/omap3.h @@ -253,4 +253,11 @@ struct gpio { #define OMAP3_EMU_HAL_START_HAL_CRITICAL 4 +/* ABB settings */ +#define OMAP_ABB_SETTLING_TIME 30 +#define OMAP_ABB_CLOCK_CYCLES 8 + +/* ABB tranxdone mask */ +#define OMAP_ABB_MPU_TXDONE_MASK (0x1 << 26) + #endif diff --git a/arch/arm/include/asm/arch-omap4/omap.h b/arch/arm/include/asm/arch-omap4/omap.h index e9a6ffeb83..55a07605b8 100644 --- a/arch/arm/include/asm/arch-omap4/omap.h +++ b/arch/arm/include/asm/arch-omap4/omap.h @@ -143,4 +143,12 @@ struct s32ktimer { #define NON_SECURE_SRAM_END 0x4030E000 /* Not inclusive */ /* base address for indirect vectors (internal boot mode) */ #define SRAM_ROM_VECT_BASE 0x4030D000 + +/* ABB settings */ +#define OMAP_ABB_SETTLING_TIME 50 +#define OMAP_ABB_CLOCK_CYCLES 16 + +/* ABB tranxdone mask */ +#define OMAP_ABB_MPU_TXDONE_MASK (0x1 << 7) + #endif diff --git a/arch/arm/include/asm/arch-omap5/omap.h b/arch/arm/include/asm/arch-omap5/omap.h index 4f43a903d8..1c1a64bd23 100644 --- a/arch/arm/include/asm/arch-omap5/omap.h +++ b/arch/arm/include/asm/arch-omap5/omap.h @@ -215,6 +215,19 @@ struct s32ktimer { #define SRCODE_OVERRIDE_SEL_XS_SHIFT 0 #define SRCODE_OVERRIDE_SEL_XS_MASK (1 << 0) +/* ABB settings */ +#define OMAP_ABB_SETTLING_TIME 50 +#define OMAP_ABB_CLOCK_CYCLES 16 + +/* ABB tranxdone mask */ +#define OMAP_ABB_MPU_TXDONE_MASK (0x1 << 7) + +/* ABB efuse masks */ +#define OMAP5_ABB_FUSE_VSET_MASK (0x1F << 24) +#define OMAP5_ABB_FUSE_ENABLE_MASK (0x1 << 29) +#define OMAP5_ABB_LDOVBBMPU_MUX_CTRL_MASK (0x1 << 10) +#define OMAP5_ABB_LDOVBBMPU_VSET_OUT_MASK (0x1f << 0) + #ifndef __ASSEMBLY__ struct srcomp_params { s8 divide_factor; diff --git a/arch/arm/include/asm/omap_common.h b/arch/arm/include/asm/omap_common.h index ee7b188d3a..f8f3719bd6 100644 --- a/arch/arm/include/asm/omap_common.h +++ b/arch/arm/include/asm/omap_common.h @@ -242,6 +242,8 @@ struct prcm_regs { u32 cm_l3init_fsusb_clkctrl; u32 cm_l3init_ocp2scp1_clkctrl; + u32 prm_irqstatus_mpu_2; + /* cm2.l4per */ u32 cm_l4per_clkstctrl; u32 cm_l4per_dynamicdep; @@ -328,6 +330,8 @@ struct prcm_regs { u32 prm_sldo_mpu_ctrl; u32 prm_sldo_mm_setup; u32 prm_sldo_mm_ctrl; + u32 prm_abbldo_mpu_setup; + u32 prm_abbldo_mpu_ctrl; u32 cm_div_m4_dpll_core; u32 cm_div_m5_dpll_core; @@ -350,6 +354,7 @@ struct prcm_regs { struct omap_sys_ctrl_regs { u32 control_status; + u32 control_std_fuse_opp_vdd_mpu_2; u32 control_core_mmr_lock1; u32 control_core_mmr_lock2; u32 control_core_mmr_lock3; @@ -419,6 +424,7 @@ struct omap_sys_ctrl_regs { u32 control_port_emif2_sdram_config; u32 control_emif1_sdram_config_ext; u32 control_emif2_sdram_config_ext; + u32 control_wkup_ldovbb_mpu_voltage_ctrl; u32 control_smart1nopmio_padconf_0; u32 control_smart1nopmio_padconf_1; u32 control_padconf_mode; @@ -545,6 +551,9 @@ void enable_non_essential_clocks(void); void scale_vcores(struct vcores_data const *); u32 get_offset_code(u32 volt_offset, struct pmic_data *pmic); void do_scale_vcore(u32 vcore_reg, u32 volt_mv, struct pmic_data *pmic); +void abb_setup(u32 fuse, u32 ldovbb, u32 setup, u32 control, + u32 txdone, u32 txdone_mask, u32 opp); +s8 abb_setup_ldovbb(u32 fuse, u32 ldovbb); /* Max value for DPLL multiplier M */ #define OMAP_DPLL_MAX_N 127 @@ -555,6 +564,19 @@ void do_scale_vcore(u32 vcore_reg, u32 volt_mv, struct pmic_data *pmic); #define OMAP_INIT_CONTEXT_UBOOT_AFTER_SPL 2 #define OMAP_INIT_CONTEXT_UBOOT_AFTER_CH 3 +/* ABB */ +#define OMAP_ABB_NOMINAL_OPP 0 +#define OMAP_ABB_FAST_OPP 1 +#define OMAP_ABB_SLOW_OPP 3 +#define OMAP_ABB_CONTROL_FAST_OPP_SEL_MASK (0x1 << 0) +#define OMAP_ABB_CONTROL_SLOW_OPP_SEL_MASK (0x1 << 1) +#define OMAP_ABB_CONTROL_OPP_CHANGE_MASK (0x1 << 2) +#define OMAP_ABB_CONTROL_SR2_IN_TRANSITION_MASK (0x1 << 6) +#define OMAP_ABB_SETUP_SR2EN_MASK (0x1 << 0) +#define OMAP_ABB_SETUP_ACTIVE_FBB_SEL_MASK (0x1 << 2) +#define OMAP_ABB_SETUP_ACTIVE_RBB_SEL_MASK (0x1 << 1) +#define OMAP_ABB_SETUP_SR2_WTCNT_VALUE_MASK (0xff << 8) + static inline u32 omap_revision(void) { extern u32 *const omap_si_rev; -- cgit v1.2.1