include/linux/platform_data/ti-sysc.h

Source file repositories/reference/linux-study-clean/include/linux/platform_data/ti-sysc.h

File Facts

System
Linux kernel
Corpus path
include/linux/platform_data/ti-sysc.h
Extension
.h
Size
5112 bytes
Lines
172
Domain
Core OS
Bucket
Core Kernel Interface
Inferred role
Core OS: implementation source
Status
source implementation candidate

Why This File Exists

Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.

Dependency Surface

Detected Declarations

Annotated Snippet

struct ti_sysc_cookie {
	void *data;
	void *clkdm;
};

/**
 * struct sysc_regbits - TI 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
 * @emufree_shift; Offset of the emufree bit
 *
 * Note that 0 is a valid shift, and for ti-sysc.c -ENODEV can be used if a
 * feature is not available.
 */
struct sysc_regbits {
	s8 midle_shift;
	s8 clkact_shift;
	s8 sidle_shift;
	s8 enwkup_shift;
	s8 srst_shift;
	s8 autoidle_shift;
	s8 dmadisable_shift;
	s8 emufree_shift;
};

#define SYSC_MODULE_QUIRK_OTG		BIT(30)
#define SYSC_QUIRK_RESET_ON_CTX_LOST	BIT(29)
#define SYSC_QUIRK_REINIT_ON_CTX_LOST	BIT(28)
#define SYSC_QUIRK_REINIT_ON_RESUME	BIT(27)
#define SYSC_QUIRK_GPMC_DEBUG		BIT(26)
#define SYSC_MODULE_QUIRK_ENA_RESETDONE	BIT(25)
#define SYSC_MODULE_QUIRK_PRUSS		BIT(24)
#define SYSC_MODULE_QUIRK_DSS_RESET	BIT(23)
#define SYSC_MODULE_QUIRK_RTC_UNLOCK	BIT(22)
#define SYSC_QUIRK_CLKDM_NOAUTO		BIT(21)
#define SYSC_QUIRK_FORCE_MSTANDBY	BIT(20)
#define SYSC_MODULE_QUIRK_AESS		BIT(19)
#define SYSC_MODULE_QUIRK_SGX		BIT(18)
#define SYSC_MODULE_QUIRK_HDQ1W		BIT(17)
#define SYSC_MODULE_QUIRK_I2C		BIT(16)
#define SYSC_MODULE_QUIRK_WDT		BIT(15)
#define SYSS_QUIRK_RESETDONE_INVERTED	BIT(14)
#define SYSC_QUIRK_SWSUP_MSTANDBY	BIT(13)
#define SYSC_QUIRK_SWSUP_SIDLE_ACT	BIT(12)
#define SYSC_QUIRK_SWSUP_SIDLE		BIT(11)
#define SYSC_QUIRK_EXT_OPT_CLOCK	BIT(10)
#define SYSC_QUIRK_RESET_STATUS		BIT(8)
#define SYSC_QUIRK_NO_IDLE		BIT(7)
#define SYSC_QUIRK_NO_IDLE_ON_INIT	BIT(6)
#define SYSC_QUIRK_NO_RESET_ON_INIT	BIT(5)
#define SYSC_QUIRK_OPT_CLKS_NEEDED	BIT(4)
#define SYSC_QUIRK_OPT_CLKS_IN_RESET	BIT(3)
#define SYSC_QUIRK_16BIT		BIT(2)
#define SYSC_QUIRK_UNCACHED		BIT(1)
#define SYSC_QUIRK_USE_CLOCKACT		BIT(0)

#define SYSC_NR_IDLEMODES		4

/**
 * struct sysc_capabilities - capabilities for an interconnect target module
 * @type: sysc type identifier for the module
 * @sysc_mask: bitmask of supported SYSCONFIG register bits
 * @regbits: bitmask of SYSCONFIG register bits
 * @mod_quirks: bitmask of module specific quirks
 */
struct sysc_capabilities {
	const enum ti_sysc_module_type type;
	const u32 sysc_mask;
	const struct sysc_regbits *regbits;
	const u32 mod_quirks;
};

/**
 * struct sysc_config - configuration for an interconnect target module
 * @sysc_val: configured value for sysc register
 * @syss_mask: configured mask value for SYSSTATUS register
 * @midlemodes: bitmask of supported master idle modes
 * @sidlemodes: bitmask of supported slave idle modes
 * @srst_udelay: optional delay needed after OCP soft reset
 * @quirks: bitmask of enabled quirks
 */
struct sysc_config {
	u32 sysc_val;
	u32 syss_mask;
	u8 midlemodes;

Annotation

Implementation Notes