| 123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385 | /* * 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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