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- /*
- * omap_hwmod macros, structures
- *
- * Copyright (C) 2009-2011 Nokia Corporation
- * Copyright (C) 2011-2012 Texas Instruments, Inc.
- * Paul Walmsley
- *
- * Created in collaboration with (alphabetical order): Benoît Cousson,
- * Kevin Hilman, Tony Lindgren, Rajendra Nayak, Vikram Pandita, Sakari
- * Poussa, Anand Sawant, Santosh Shilimkar, Richard Woodruff
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * These headers and macros are used to define OMAP on-chip module
- * data and their integration with other OMAP modules and Linux.
- * Copious documentation and references can also be found in the
- * omap_hwmod code, in arch/arm/mach-omap2/omap_hwmod.c (as of this
- * writing).
- *
- * To do:
- * - add interconnect error log structures
- * - add pinmuxing
- * - init_conn_id_bit (CONNID_BIT_VECTOR)
- * - implement default hwmod SMS/SDRC flags?
- * - move Linux-specific data ("non-ROM data") out
- *
- */
- #ifndef __ARCH_ARM_PLAT_OMAP_INCLUDE_MACH_OMAP_HWMOD_H
- #define __ARCH_ARM_PLAT_OMAP_INCLUDE_MACH_OMAP_HWMOD_H
- #include <linux/kernel.h>
- #include <linux/init.h>
- #include <linux/list.h>
- #include <linux/ioport.h>
- #include <linux/spinlock.h>
- struct omap_device;
- extern struct omap_hwmod_sysc_fields omap_hwmod_sysc_type1;
- extern struct omap_hwmod_sysc_fields omap_hwmod_sysc_type2;
- extern struct omap_hwmod_sysc_fields omap_hwmod_sysc_type3;
- /*
- * OCP SYSCONFIG bit shifts/masks TYPE1. These are for IPs compliant
- * with the original PRCM protocol defined for OMAP2420
- */
- #define SYSC_TYPE1_MIDLEMODE_SHIFT 12
- #define SYSC_TYPE1_MIDLEMODE_MASK (0x3 << SYSC_TYPE1_MIDLEMODE_SHIFT)
- #define SYSC_TYPE1_CLOCKACTIVITY_SHIFT 8
- #define SYSC_TYPE1_CLOCKACTIVITY_MASK (0x3 << SYSC_TYPE1_CLOCKACTIVITY_SHIFT)
- #define SYSC_TYPE1_SIDLEMODE_SHIFT 3
- #define SYSC_TYPE1_SIDLEMODE_MASK (0x3 << SYSC_TYPE1_SIDLEMODE_SHIFT)
- #define SYSC_TYPE1_ENAWAKEUP_SHIFT 2
- #define SYSC_TYPE1_ENAWAKEUP_MASK (1 << SYSC_TYPE1_ENAWAKEUP_SHIFT)
- #define SYSC_TYPE1_SOFTRESET_SHIFT 1
- #define SYSC_TYPE1_SOFTRESET_MASK (1 << SYSC_TYPE1_SOFTRESET_SHIFT)
- #define SYSC_TYPE1_AUTOIDLE_SHIFT 0
- #define SYSC_TYPE1_AUTOIDLE_MASK (1 << SYSC_TYPE1_AUTOIDLE_SHIFT)
- /*
- * OCP SYSCONFIG bit shifts/masks TYPE2. These are for IPs compliant
- * with the new PRCM protocol defined for new OMAP4 IPs.
- */
- #define SYSC_TYPE2_SOFTRESET_SHIFT 0
- #define SYSC_TYPE2_SOFTRESET_MASK (1 << SYSC_TYPE2_SOFTRESET_SHIFT)
- #define SYSC_TYPE2_SIDLEMODE_SHIFT 2
- #define SYSC_TYPE2_SIDLEMODE_MASK (0x3 << SYSC_TYPE2_SIDLEMODE_SHIFT)
- #define SYSC_TYPE2_MIDLEMODE_SHIFT 4
- #define SYSC_TYPE2_MIDLEMODE_MASK (0x3 << SYSC_TYPE2_MIDLEMODE_SHIFT)
- #define SYSC_TYPE2_DMADISABLE_SHIFT 16
- #define SYSC_TYPE2_DMADISABLE_MASK (0x1 << SYSC_TYPE2_DMADISABLE_SHIFT)
- /*
- * OCP SYSCONFIG bit shifts/masks TYPE3.
- * This is applicable for some IPs present in AM33XX
- */
- #define SYSC_TYPE3_SIDLEMODE_SHIFT 0
- #define SYSC_TYPE3_SIDLEMODE_MASK (0x3 << SYSC_TYPE3_SIDLEMODE_SHIFT)
- #define SYSC_TYPE3_MIDLEMODE_SHIFT 2
- #define SYSC_TYPE3_MIDLEMODE_MASK (0x3 << SYSC_TYPE3_MIDLEMODE_SHIFT)
- /* OCP SYSSTATUS bit shifts/masks */
- #define SYSS_RESETDONE_SHIFT 0
- #define SYSS_RESETDONE_MASK (1 << SYSS_RESETDONE_SHIFT)
- /* Master standby/slave idle mode flags */
- #define HWMOD_IDLEMODE_FORCE (1 << 0)
- #define HWMOD_IDLEMODE_NO (1 << 1)
- #define HWMOD_IDLEMODE_SMART (1 << 2)
- #define HWMOD_IDLEMODE_SMART_WKUP (1 << 3)
- /* modulemode control type (SW or HW) */
- #define MODULEMODE_HWCTRL 1
- #define MODULEMODE_SWCTRL 2
- /**
- * struct omap_hwmod_mux_info - hwmod specific mux configuration
- * @pads: array of omap_device_pad entries
- * @nr_pads: number of omap_device_pad entries
- *
- * Note that this is currently built during init as needed.
- */
- struct omap_hwmod_mux_info {
- int nr_pads;
- struct omap_device_pad *pads;
- int nr_pads_dynamic;
- struct omap_device_pad **pads_dynamic;
- int *irqs;
- bool enabled;
- };
- /**
- * struct omap_hwmod_irq_info - MPU IRQs used by the hwmod
- * @name: name of the IRQ channel (module local name)
- * @irq: IRQ channel ID (should be non-negative except -1 = terminator)
- *
- * @name should be something short, e.g., "tx" or "rx". It is for use
- * by platform_get_resource_byname(). It is defined locally to the
- * hwmod.
- */
- struct omap_hwmod_irq_info {
- const char *name;
- s16 irq;
- };
- /**
- * struct omap_hwmod_dma_info - DMA channels used by the hwmod
- * @name: name of the DMA channel (module local name)
- * @dma_req: DMA request ID (should be non-negative except -1 = terminator)
- *
- * @name should be something short, e.g., "tx" or "rx". It is for use
- * by platform_get_resource_byname(). It is defined locally to the
- * hwmod.
- */
- struct omap_hwmod_dma_info {
- const char *name;
- s16 dma_req;
- };
- /**
- * struct omap_hwmod_rst_info - IPs reset lines use by hwmod
- * @name: name of the reset line (module local name)
- * @rst_shift: Offset of the reset bit
- * @st_shift: Offset of the reset status bit (OMAP2/3 only)
- *
- * @name should be something short, e.g., "cpu0" or "rst". It is defined
- * locally to the hwmod.
- */
- struct omap_hwmod_rst_info {
- const char *name;
- u8 rst_shift;
- u8 st_shift;
- };
- /**
- * struct omap_hwmod_opt_clk - optional clocks used by this hwmod
- * @role: "sys", "32k", "tv", etc -- for use in clk_get()
- * @clk: opt clock: OMAP clock name
- * @_clk: pointer to the struct clk (filled in at runtime)
- *
- * The module's interface clock and main functional clock should not
- * be added as optional clocks.
- */
- struct omap_hwmod_opt_clk {
- const char *role;
- const char *clk;
- struct clk *_clk;
- };
- /* omap_hwmod_omap2_firewall.flags bits */
- #define OMAP_FIREWALL_L3 (1 << 0)
- #define OMAP_FIREWALL_L4 (1 << 1)
- /**
- * struct omap_hwmod_omap2_firewall - OMAP2/3 device firewall data
- * @l3_perm_bit: bit shift for L3_PM_*_PERMISSION_*
- * @l4_fw_region: L4 firewall region ID
- * @l4_prot_group: L4 protection group ID
- * @flags: (see omap_hwmod_omap2_firewall.flags macros above)
- */
- struct omap_hwmod_omap2_firewall {
- u8 l3_perm_bit;
- u8 l4_fw_region;
- u8 l4_prot_group;
- u8 flags;
- };
- /*
- * omap_hwmod_addr_space.flags bits
- *
- * ADDR_MAP_ON_INIT: Map this address space during omap_hwmod init.
- * ADDR_TYPE_RT: Address space contains module register target data.
- */
- #define ADDR_MAP_ON_INIT (1 << 0) /* XXX does not belong */
- #define ADDR_TYPE_RT (1 << 1)
- /**
- * struct omap_hwmod_addr_space - address space handled by the hwmod
- * @name: name of the address space
- * @pa_start: starting physical address
- * @pa_end: ending physical address
- * @flags: (see omap_hwmod_addr_space.flags macros above)
- *
- * Address space doesn't necessarily follow physical interconnect
- * structure. GPMC is one example.
- */
- struct omap_hwmod_addr_space {
- const char *name;
- u32 pa_start;
- u32 pa_end;
- u8 flags;
- };
- /*
- * omap_hwmod_ocp_if.user bits: these indicate the initiators that use this
- * interface to interact with the hwmod. Used to add sleep dependencies
- * when the module is enabled or disabled.
- */
- #define OCP_USER_MPU (1 << 0)
- #define OCP_USER_SDMA (1 << 1)
- #define OCP_USER_DSP (1 << 2)
- #define OCP_USER_IVA (1 << 3)
- /* omap_hwmod_ocp_if.flags bits */
- #define OCPIF_SWSUP_IDLE (1 << 0)
- #define OCPIF_CAN_BURST (1 << 1)
- /* omap_hwmod_ocp_if._int_flags possibilities */
- #define _OCPIF_INT_FLAGS_REGISTERED (1 << 0)
- /**
- * struct omap_hwmod_ocp_if - OCP interface data
- * @master: struct omap_hwmod that initiates OCP transactions on this link
- * @slave: struct omap_hwmod that responds to OCP transactions on this link
- * @addr: address space associated with this link
- * @clk: interface clock: OMAP clock name
- * @_clk: pointer to the interface struct clk (filled in at runtime)
- * @fw: interface firewall data
- * @width: OCP data width
- * @user: initiators using this interface (see OCP_USER_* macros above)
- * @flags: OCP interface flags (see OCPIF_* macros above)
- * @_int_flags: internal flags (see _OCPIF_INT_FLAGS* macros above)
- *
- * It may also be useful to add a tag_cnt field for OCP2.x devices.
- *
- * Parameter names beginning with an underscore are managed internally by
- * the omap_hwmod code and should not be set during initialization.
- */
- struct omap_hwmod_ocp_if {
- struct omap_hwmod *master;
- struct omap_hwmod *slave;
- struct omap_hwmod_addr_space *addr;
- const char *clk;
- struct clk *_clk;
- union {
- struct omap_hwmod_omap2_firewall omap2;
- } fw;
- u8 width;
- u8 user;
- u8 flags;
- u8 _int_flags;
- };
- /* Macros for use in struct omap_hwmod_sysconfig */
- /* Flags for use in omap_hwmod_sysconfig.idlemodes */
- #define MASTER_STANDBY_SHIFT 4
- #define SLAVE_IDLE_SHIFT 0
- #define SIDLE_FORCE (HWMOD_IDLEMODE_FORCE << SLAVE_IDLE_SHIFT)
- #define SIDLE_NO (HWMOD_IDLEMODE_NO << SLAVE_IDLE_SHIFT)
- #define SIDLE_SMART (HWMOD_IDLEMODE_SMART << SLAVE_IDLE_SHIFT)
- #define SIDLE_SMART_WKUP (HWMOD_IDLEMODE_SMART_WKUP << SLAVE_IDLE_SHIFT)
- #define MSTANDBY_FORCE (HWMOD_IDLEMODE_FORCE << MASTER_STANDBY_SHIFT)
- #define MSTANDBY_NO (HWMOD_IDLEMODE_NO << MASTER_STANDBY_SHIFT)
- #define MSTANDBY_SMART (HWMOD_IDLEMODE_SMART << MASTER_STANDBY_SHIFT)
- #define MSTANDBY_SMART_WKUP (HWMOD_IDLEMODE_SMART_WKUP << MASTER_STANDBY_SHIFT)
- /* omap_hwmod_sysconfig.sysc_flags capability flags */
- #define SYSC_HAS_AUTOIDLE (1 << 0)
- #define SYSC_HAS_SOFTRESET (1 << 1)
- #define SYSC_HAS_ENAWAKEUP (1 << 2)
- #define SYSC_HAS_EMUFREE (1 << 3)
- #define SYSC_HAS_CLOCKACTIVITY (1 << 4)
- #define SYSC_HAS_SIDLEMODE (1 << 5)
- #define SYSC_HAS_MIDLEMODE (1 << 6)
- #define SYSS_HAS_RESET_STATUS (1 << 7)
- #define SYSC_NO_CACHE (1 << 8) /* XXX SW flag, belongs elsewhere */
- #define SYSC_HAS_RESET_STATUS (1 << 9)
- #define SYSC_HAS_DMADISABLE (1 << 10)
- /* omap_hwmod_sysconfig.clockact flags */
- #define CLOCKACT_TEST_BOTH 0x0
- #define CLOCKACT_TEST_MAIN 0x1
- #define CLOCKACT_TEST_ICLK 0x2
- #define CLOCKACT_TEST_NONE 0x3
- /**
- * struct omap_hwmod_sysc_fields - hwmod OCP_SYSCONFIG register field offsets.
- * @midle_shift: Offset of the midle bit
- * @clkact_shift: Offset of the clockactivity bit
- * @sidle_shift: Offset of the sidle bit
- * @enwkup_shift: Offset of the enawakeup bit
- * @srst_shift: Offset of the softreset bit
- * @autoidle_shift: Offset of the autoidle bit
- * @dmadisable_shift: Offset of the dmadisable bit
- */
- struct omap_hwmod_sysc_fields {
- u8 midle_shift;
- u8 clkact_shift;
- u8 sidle_shift;
- u8 enwkup_shift;
- u8 srst_shift;
- u8 autoidle_shift;
- u8 dmadisable_shift;
- };
- /**
- * struct omap_hwmod_class_sysconfig - hwmod class OCP_SYS* data
- * @rev_offs: IP block revision register offset (from module base addr)
- * @sysc_offs: OCP_SYSCONFIG register offset (from module base addr)
- * @syss_offs: OCP_SYSSTATUS register offset (from module base addr)
- * @srst_udelay: Delay needed after doing a softreset in usecs
- * @idlemodes: One or more of {SIDLE,MSTANDBY}_{OFF,FORCE,SMART}
- * @sysc_flags: SYS{C,S}_HAS* flags indicating SYSCONFIG bits supported
- * @clockact: the default value of the module CLOCKACTIVITY bits
- *
- * @clockact describes to the module which clocks are likely to be
- * disabled when the PRCM issues its idle request to the module. Some
- * modules have separate clockdomains for the interface clock and main
- * functional clock, and can check whether they should acknowledge the
- * idle request based on the internal module functionality that has
- * been associated with the clocks marked in @clockact. This field is
- * only used if HWMOD_SET_DEFAULT_CLOCKACT is set (see below)
- *
- * @sysc_fields: structure containing the offset positions of various bits in
- * SYSCONFIG register. This can be populated using omap_hwmod_sysc_type1 or
- * omap_hwmod_sysc_type2 defined in omap_hwmod_common_data.c depending on
- * whether the device ip is compliant with the original PRCM protocol
- * defined for OMAP2420 or the new PRCM protocol for new OMAP4 IPs.
- * If the device follows a different scheme for the sysconfig register ,
- * then this field has to be populated with the correct offset structure.
- */
- struct omap_hwmod_class_sysconfig {
- u32 rev_offs;
- u32 sysc_offs;
- u32 syss_offs;
- u16 sysc_flags;
- struct omap_hwmod_sysc_fields *sysc_fields;
- u8 srst_udelay;
- u8 idlemodes;
- u8 clockact;
- };
- /**
- * struct omap_hwmod_omap2_prcm - OMAP2/3-specific PRCM data
- * @module_offs: PRCM submodule offset from the start of the PRM/CM
- * @prcm_reg_id: PRCM register ID (e.g., 3 for CM_AUTOIDLE3)
- * @module_bit: register bit shift for AUTOIDLE, WKST, WKEN, GRPSEL regs
- * @idlest_reg_id: IDLEST register ID (e.g., 3 for CM_IDLEST3)
- * @idlest_idle_bit: register bit shift for CM_IDLEST slave idle bit
- * @idlest_stdby_bit: register bit shift for CM_IDLEST master standby bit
- *
- * @prcm_reg_id and @module_bit are specific to the AUTOIDLE, WKST,
- * WKEN, GRPSEL registers. In an ideal world, no extra information
- * would be needed for IDLEST information, but alas, there are some
- * exceptions, so @idlest_reg_id, @idlest_idle_bit, @idlest_stdby_bit
- * are needed for the IDLEST registers (c.f. 2430 I2CHS, 3430 USBHOST)
- */
- struct omap_hwmod_omap2_prcm {
- s16 module_offs;
- u8 prcm_reg_id;
- u8 module_bit;
- u8 idlest_reg_id;
- u8 idlest_idle_bit;
- u8 idlest_stdby_bit;
- };
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