diff options
Diffstat (limited to 'arch/arm/plat-omap/include/plat/omap_hwmod.h')
| -rw-r--r-- | arch/arm/plat-omap/include/plat/omap_hwmod.h | 138 |
1 files changed, 102 insertions, 36 deletions
diff --git a/arch/arm/plat-omap/include/plat/omap_hwmod.h b/arch/arm/plat-omap/include/plat/omap_hwmod.h index 33933256a22..440b4164f2f 100644 --- a/arch/arm/plat-omap/include/plat/omap_hwmod.h +++ b/arch/arm/plat-omap/include/plat/omap_hwmod.h @@ -4,7 +4,7 @@ * Copyright (C) 2009 Nokia Corporation * Paul Walmsley * - * Created in collaboration with (alphabetical order): Benoit Cousson, + * Created in collaboration with (alphabetical order): Benoît Cousson, * Kevin Hilman, Tony Lindgren, Rajendra Nayak, Vikram Pandita, Sakari * Poussa, Anand Sawant, Santosh Shilimkar, Richard Woodruff * @@ -33,25 +33,42 @@ #define __ARCH_ARM_PLAT_OMAP_INCLUDE_MACH_OMAP_HWMOD_H #include <linux/kernel.h> +#include <linux/list.h> #include <linux/ioport.h> - #include <plat/cpu.h> struct omap_device; -/* OCP SYSCONFIG bit shifts/masks */ -#define SYSC_MIDLEMODE_SHIFT 12 -#define SYSC_MIDLEMODE_MASK (0x3 << SYSC_MIDLEMODE_SHIFT) -#define SYSC_CLOCKACTIVITY_SHIFT 8 -#define SYSC_CLOCKACTIVITY_MASK (0x3 << SYSC_CLOCKACTIVITY_SHIFT) -#define SYSC_SIDLEMODE_SHIFT 3 -#define SYSC_SIDLEMODE_MASK (0x3 << SYSC_SIDLEMODE_SHIFT) -#define SYSC_ENAWAKEUP_SHIFT 2 -#define SYSC_ENAWAKEUP_MASK (1 << SYSC_ENAWAKEUP_SHIFT) -#define SYSC_SOFTRESET_SHIFT 1 -#define SYSC_SOFTRESET_MASK (1 << SYSC_SOFTRESET_SHIFT) -#define SYSC_AUTOIDLE_SHIFT 0 -#define SYSC_AUTOIDLE_MASK (1 << SYSC_AUTOIDLE_SHIFT) +extern struct omap_hwmod_sysc_fields omap_hwmod_sysc_type1; +extern struct omap_hwmod_sysc_fields omap_hwmod_sysc_type2; + +/* + * 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_MIDLEMODE_SHIFT) +#define SYSC_TYPE1_CLOCKACTIVITY_SHIFT 8 +#define SYSC_TYPE1_CLOCKACTIVITY_MASK (0x3 << SYSC_CLOCKACTIVITY_SHIFT) +#define SYSC_TYPE1_SIDLEMODE_SHIFT 3 +#define SYSC_TYPE1_SIDLEMODE_MASK (0x3 << SYSC_SIDLEMODE_SHIFT) +#define SYSC_TYPE1_ENAWAKEUP_SHIFT 2 +#define SYSC_TYPE1_ENAWAKEUP_MASK (1 << SYSC_ENAWAKEUP_SHIFT) +#define SYSC_TYPE1_SOFTRESET_SHIFT 1 +#define SYSC_TYPE1_SOFTRESET_MASK (1 << SYSC_SOFTRESET_SHIFT) +#define SYSC_TYPE1_AUTOIDLE_SHIFT 0 +#define SYSC_TYPE1_AUTOIDLE_MASK (1 << SYSC_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) /* OCP SYSSTATUS bit shifts/masks */ #define SYSS_RESETDONE_SHIFT 0 @@ -62,7 +79,6 @@ struct omap_device; #define HWMOD_IDLEMODE_NO (1 << 1) #define HWMOD_IDLEMODE_SMART (1 << 2) - /** * struct omap_hwmod_irq_info - MPU IRQs used by the hwmod * @name: name of the IRQ channel (module local name) @@ -94,8 +110,7 @@ struct omap_hwmod_dma_info { /** * struct omap_hwmod_opt_clk - optional clocks used by this hwmod * @role: "sys", "32k", "tv", etc -- for use in clk_get() - * @clkdev_dev_id: opt clock: clkdev dev_id string - * @clkdev_con_id: opt clock: clkdev con_id string + * @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 @@ -103,8 +118,7 @@ struct omap_hwmod_dma_info { */ struct omap_hwmod_opt_clk { const char *role; - const char *clkdev_dev_id; - const char *clkdev_con_id; + const char *clk; struct clk *_clk; }; @@ -171,8 +185,7 @@ struct omap_hwmod_addr_space { * @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 - * @clkdev_dev_id: interface clock: clkdev dev_id string - * @clkdev_con_id: interface clock: clkdev con_id string + * @clk: interface clock: OMAP clock name * @_clk: pointer to the interface struct clk (filled in at runtime) * @fw: interface firewall data * @addr_cnt: ARRAY_SIZE(@addr) @@ -191,8 +204,7 @@ struct omap_hwmod_ocp_if { struct omap_hwmod *master; struct omap_hwmod *slave; struct omap_hwmod_addr_space *addr; - const char *clkdev_dev_id; - const char *clkdev_con_id; + const char *clk; struct clk *_clk; union { struct omap_hwmod_omap2_firewall omap2; @@ -236,7 +248,25 @@ struct omap_hwmod_ocp_if { #define CLOCKACT_TEST_NONE 0x3 /** - * struct omap_hwmod_sysconfig - hwmod OCP_SYSCONFIG/OCP_SYSSTATUS data + * 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 + */ +struct omap_hwmod_sysc_fields { + u8 midle_shift; + u8 clkact_shift; + u8 sidle_shift; + u8 enwkup_shift; + u8 srst_shift; + u8 autoidle_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) @@ -252,14 +282,22 @@ struct omap_hwmod_ocp_if { * 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_sysconfig { +struct omap_hwmod_class_sysconfig { u16 rev_offs; u16 sysc_offs; u16 syss_offs; u8 idlemodes; u8 sysc_flags; u8 clockact; + struct omap_hwmod_sysc_fields *sysc_fields; }; /** @@ -352,19 +390,33 @@ struct omap_hwmod_omap4_prcm { #define _HWMOD_STATE_DISABLED 6 /** + * struct omap_hwmod_class - the type of an IP block + * @name: name of the hwmod_class + * @sysc: device SYSCONFIG/SYSSTATUS register data + * @rev: revision of the IP class + * + * Represent the class of a OMAP hardware "modules" (e.g. timer, + * smartreflex, gpio, uart...) + */ +struct omap_hwmod_class { + const char *name; + struct omap_hwmod_class_sysconfig *sysc; + u32 rev; +}; + +/** * struct omap_hwmod - integration data for OMAP hardware "modules" (IP blocks) * @name: name of the hwmod + * @class: struct omap_hwmod_class * to the class of this hwmod * @od: struct omap_device currently associated with this hwmod (internal use) * @mpu_irqs: ptr to an array of MPU IRQs (see also mpu_irqs_cnt) * @sdma_chs: ptr to an array of SDMA channel IDs (see also sdma_chs_cnt) * @prcm: PRCM data pertaining to this hwmod - * @clkdev_dev_id: main clock: clkdev dev_id string - * @clkdev_con_id: main clock: clkdev con_id string + * @main_clk: main clock: OMAP clock name * @_clk: pointer to the main struct clk (filled in at runtime) * @opt_clks: other device clocks that drivers can request (0..*) * @masters: ptr to array of OCP ifs that this hwmod can initiate on * @slaves: ptr to array of OCP ifs that this hwmod can respond on - * @sysconfig: device SYSCONFIG/SYSSTATUS register data * @dev_attr: arbitrary device attributes that can be passed to the driver * @_sysc_cache: internal-use hwmod flags * @_rt_va: cached register target start address (internal use) @@ -383,16 +435,17 @@ struct omap_hwmod_omap4_prcm { * @omap_chip: OMAP chips this hwmod is present on * @node: list node for hwmod list (internal use) * - * @clkdev_dev_id, @clkdev_con_id, and @clk all refer to this module's "main - * clock," which for our purposes is defined as "the functional clock needed - * for register accesses to complete." Modules may not have a main clock if - * the interface clock also serves as a main clock. + * @main_clk refers to this module's "main clock," which for our + * purposes is defined as "the functional clock needed for register + * accesses to complete." Modules may not have a main clock if the + * interface clock also serves as a main clock. * * Parameter names beginning with an underscore are managed internally by * the omap_hwmod code and should not be set during initialization. */ struct omap_hwmod { const char *name; + struct omap_hwmod_class *class; struct omap_device *od; struct omap_hwmod_irq_info *mpu_irqs; struct omap_hwmod_dma_info *sdma_chs; @@ -400,13 +453,11 @@ struct omap_hwmod { struct omap_hwmod_omap2_prcm omap2; struct omap_hwmod_omap4_prcm omap4; } prcm; - const char *clkdev_dev_id; - const char *clkdev_con_id; + const char *main_clk; struct clk *_clk; struct omap_hwmod_opt_clk *opt_clks; struct omap_hwmod_ocp_if **masters; /* connect to *_IA */ struct omap_hwmod_ocp_if **slaves; /* connect to *_TA */ - struct omap_hwmod_sysconfig *sysconfig; void *dev_attr; u32 _sysc_cache; void __iomem *_rt_va; @@ -441,6 +492,8 @@ int omap_hwmod_shutdown(struct omap_hwmod *oh); int omap_hwmod_enable_clocks(struct omap_hwmod *oh); int omap_hwmod_disable_clocks(struct omap_hwmod *oh); +int omap_hwmod_set_slave_idlemode(struct omap_hwmod *oh, u8 idlemode); + int omap_hwmod_reset(struct omap_hwmod *oh); void omap_hwmod_ocp_barrier(struct omap_hwmod *oh); @@ -465,4 +518,17 @@ int omap_hwmod_set_clockact_none(struct omap_hwmod *oh); int omap_hwmod_enable_wakeup(struct omap_hwmod *oh); int omap_hwmod_disable_wakeup(struct omap_hwmod *oh); +int omap_hwmod_for_each_by_class(const char *classname, + int (*fn)(struct omap_hwmod *oh, + void *user), + void *user); + +/* + * Chip variant-specific hwmod init routines - XXX should be converted + * to use initcalls once the initial boot ordering is straightened out + */ +extern int omap2420_hwmod_init(void); +extern int omap2430_hwmod_init(void); +extern int omap3xxx_hwmod_init(void); + #endif |