diff options
Diffstat (limited to 'include/linux/platform_data/ti-sysc.h')
| -rw-r--r-- | include/linux/platform_data/ti-sysc.h | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/include/linux/platform_data/ti-sysc.h b/include/linux/platform_data/ti-sysc.h new file mode 100644 index 000000000000..1be356330b96 --- /dev/null +++ b/include/linux/platform_data/ti-sysc.h @@ -0,0 +1,86 @@ +#ifndef __TI_SYSC_DATA_H__ +#define __TI_SYSC_DATA_H__ + +enum ti_sysc_module_type { + TI_SYSC_OMAP2, + TI_SYSC_OMAP2_TIMER, + TI_SYSC_OMAP3_SHAM, + TI_SYSC_OMAP3_AES, + TI_SYSC_OMAP4, + TI_SYSC_OMAP4_TIMER, + TI_SYSC_OMAP4_SIMPLE, + TI_SYSC_OMAP34XX_SR, + TI_SYSC_OMAP36XX_SR, + TI_SYSC_OMAP4_SR, + TI_SYSC_OMAP4_MCASP, + TI_SYSC_OMAP4_USB_HOST_FS, +}; + +/** + * 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_QUIRK_RESET_STATUS 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 + * + * @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 + * @midlemodes: bitmask of supported master idle modes + * @sidlemodes: bitmask of supported master 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; + u8 sidlemodes; + u8 srst_udelay; + u32 quirks; +}; + +#endif /* __TI_SYSC_DATA_H__ */ |