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-rw-r--r--arch/arm/plat-omap/include/plat/voltage.h148
1 files changed, 148 insertions, 0 deletions
diff --git a/arch/arm/plat-omap/include/plat/voltage.h b/arch/arm/plat-omap/include/plat/voltage.h
index 5bd204e55c3..e0b7f22155d 100644
--- a/arch/arm/plat-omap/include/plat/voltage.h
+++ b/arch/arm/plat-omap/include/plat/voltage.h
@@ -113,6 +113,154 @@ struct omap_volt_pmic_info {
u8 (*uv_to_vsel) (unsigned long uV);
};
+/* Voltage processor register offsets */
+struct vp_reg_offs {
+ u8 vpconfig;
+ u8 vstepmin;
+ u8 vstepmax;
+ u8 vlimitto;
+ u8 vstatus;
+ u8 voltage;
+};
+
+/* Voltage Processor bit field values, shifts and masks */
+struct vp_reg_val {
+ /* PRM module */
+ u16 prm_mod;
+ /* VPx_VPCONFIG */
+ u32 vpconfig_erroroffset;
+ u16 vpconfig_errorgain;
+ u32 vpconfig_errorgain_mask;
+ u8 vpconfig_errorgain_shift;
+ u32 vpconfig_initvoltage_mask;
+ u8 vpconfig_initvoltage_shift;
+ u32 vpconfig_timeouten;
+ u32 vpconfig_initvdd;
+ u32 vpconfig_forceupdate;
+ u32 vpconfig_vpenable;
+ /* VPx_VSTEPMIN */
+ u8 vstepmin_stepmin;
+ u16 vstepmin_smpswaittimemin;
+ u8 vstepmin_stepmin_shift;
+ u8 vstepmin_smpswaittimemin_shift;
+ /* VPx_VSTEPMAX */
+ u8 vstepmax_stepmax;
+ u16 vstepmax_smpswaittimemax;
+ u8 vstepmax_stepmax_shift;
+ u8 vstepmax_smpswaittimemax_shift;
+ /* VPx_VLIMITTO */
+ u8 vlimitto_vddmin;
+ u8 vlimitto_vddmax;
+ u16 vlimitto_timeout;
+ u8 vlimitto_vddmin_shift;
+ u8 vlimitto_vddmax_shift;
+ u8 vlimitto_timeout_shift;
+ /* PRM_IRQSTATUS*/
+ u32 tranxdone_status;
+};
+
+/* Voltage controller registers and offsets */
+struct vc_reg_info {
+ /* PRM module */
+ u16 prm_mod;
+ /* VC register offsets */
+ u8 smps_sa_reg;
+ u8 smps_volra_reg;
+ u8 bypass_val_reg;
+ u8 cmdval_reg;
+ u8 voltsetup_reg;
+ /*VC_SMPS_SA*/
+ u8 smps_sa_shift;
+ u32 smps_sa_mask;
+ /* VC_SMPS_VOL_RA */
+ u8 smps_volra_shift;
+ u32 smps_volra_mask;
+ /* VC_BYPASS_VAL */
+ u8 data_shift;
+ u8 slaveaddr_shift;
+ u8 regaddr_shift;
+ u32 valid;
+ /* VC_CMD_VAL */
+ u8 cmd_on_shift;
+ u8 cmd_onlp_shift;
+ u8 cmd_ret_shift;
+ u8 cmd_off_shift;
+ u32 cmd_on_mask;
+ /* PRM_VOLTSETUP */
+ u8 voltsetup_shift;
+ u32 voltsetup_mask;
+};
+
+
+/**
+ * omap_vdd_dep_volt - Table containing the parent vdd voltage and the
+ * dependent vdd voltage corresponding to it.
+ *
+ * @main_vdd_volt : The main vdd voltage
+ * @dep_vdd_volt : The voltage at which the dependent vdd should be
+ * when the main vdd is at <main_vdd_volt> voltage
+ */
+struct omap_vdd_dep_volt {
+ u32 main_vdd_volt;
+ u32 dep_vdd_volt;
+};
+
+/**
+ * omap_vdd_dep_info - Dependent vdd info
+ *
+ * @name : Dependent vdd name
+ * @voltdm : Dependent vdd pointer
+ * @dep_table : Table containing the dependent vdd voltage
+ * corresponding to every main vdd voltage.
+ */
+struct omap_vdd_dep_info {
+ char *name;
+ struct voltagedomain *voltdm;
+ struct omap_vdd_dep_volt *dep_table;
+};
+
+
+/**
+ * omap_vdd_info - Per Voltage Domain info
+ *
+ * @volt_data : voltage table having the distinct voltages supported
+ * by the domain and other associated per voltage data.
+ * @pmic_info : pmic specific parameters which should be populted by
+ * the pmic drivers.
+ * @vp_offs : structure containing the offsets for various
+ * vp registers
+ * @vp_reg : the register values, shifts, masks for various
+ * vp registers
+ * @vc_reg : structure containing various various vc registers,
+ * shifts, masks etc.
+ * @voltdm : pointer to the voltage domain structure
+ * @debug_dir : debug directory for this voltage domain.
+ * @curr_volt : current voltage for this vdd.
+ * @ocp_mod : The prm module for accessing the prm irqstatus reg.
+ * @prm_irqst_reg : prm irqstatus register.
+ * @vp_enabled : flag to keep track of whether vp is enabled or not
+ * @volt_scale : API to scale the voltage of the vdd.
+ */
+struct omap_vdd_info {
+ struct omap_volt_data *volt_data;
+ struct omap_volt_pmic_info *pmic_info;
+ struct vp_reg_offs vp_offs;
+ struct vp_reg_val vp_reg;
+ struct vc_reg_info vc_reg;
+ struct voltagedomain voltdm;
+ struct omap_vdd_dep_info *dep_vdd_info;
+ int nr_dep_vdd;
+ struct dentry *debug_dir;
+ u32 curr_volt;
+ u16 ocp_mod;
+ u8 prm_irqst_reg;
+ bool vp_enabled;
+ u32 (*read_reg) (u16 mod, u8 offset);
+ void (*write_reg) (u32 val, u16 mod, u8 offset);
+ int (*volt_scale) (struct omap_vdd_info *vdd,
+ unsigned long target_volt);
+};
+
unsigned long omap_vp_get_curr_volt(struct voltagedomain *voltdm);
void omap_vp_enable(struct voltagedomain *voltdm);
void omap_vp_disable(struct voltagedomain *voltdm);