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https://github.com/brain-hackers/u-boot-brain
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ec00b2e3ab
These are useful for modules that need to be held in reset and are enabled for data to be loaded on to them. Typically these are microcontrollers or other processing entities in the system. Signed-off-by: Nishanth Menon <nm@ti.com> Reviewed-by: Tom Rini <trini@konsulko.com>
95 lines
3.3 KiB
C
95 lines
3.3 KiB
C
/*
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* (C) Copyright 2012-2014
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* Texas Instruments Incorporated, <www.ti.com>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#ifndef _PSC_DEFS_H_
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#define _PSC_DEFS_H_
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#include <asm/arch/hardware.h>
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/*
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* FILE PURPOSE: Local Power Sleep Controller definitions
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*
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* FILE NAME: psc_defs.h
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*
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* DESCRIPTION: Provides local definitions for the power saver controller
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*
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*/
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/* Register offsets */
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#define PSC_REG_PTCMD 0x120
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#define PSC_REG_PSTAT 0x128
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#define PSC_REG_PDSTAT(x) (0x200 + (4 * (x)))
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#define PSC_REG_PDCTL(x) (0x300 + (4 * (x)))
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#define PSC_REG_MDCFG(x) (0x600 + (4 * (x)))
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#define PSC_REG_MDSTAT(x) (0x800 + (4 * (x)))
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#define PSC_REG_MDCTL(x) (0xa00 + (4 * (x)))
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#define BOOTBITMASK(x, y) ((((((u32)1 << (((u32)x) - ((u32)y) + (u32)1)) - \
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(u32)1)) << ((u32)y)))
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#define BOOT_READ_BITFIELD(z, x, y) ((((u32)z) & BOOTBITMASK(x, y)) >> (y))
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#define BOOT_SET_BITFIELD(z, f, x, y) ((((u32)z) & ~BOOTBITMASK(x, y)) | \
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((((u32)f) << (y)) & BOOTBITMASK(x, y)))
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/* PDCTL */
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#define PSC_REG_PDCTL_SET_NEXT(x, y) BOOT_SET_BITFIELD((x), (y), 0, 0)
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#define PSC_REG_PDCTL_SET_PDMODE(x, y) BOOT_SET_BITFIELD((x), (y), 15, 12)
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/* PDSTAT */
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#define PSC_REG_PDSTAT_GET_STATE(x) BOOT_READ_BITFIELD((x), 4, 0)
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/* MDCFG */
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#define PSC_REG_MDCFG_GET_PD(x) BOOT_READ_BITFIELD((x), 20, 16)
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#define PSC_REG_MDCFG_GET_RESET_ISO(x) BOOT_READ_BITFIELD((x), 14, 14)
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/* MDCTL */
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#define PSC_REG_MDCTL_SET_NEXT(x, y) BOOT_SET_BITFIELD((x), (y), 4, 0)
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#define PSC_REG_MDCTL_SET_LRSTZ(x, y) BOOT_SET_BITFIELD((x), (y), 8, 8)
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#define PSC_REG_MDCTL_GET_LRSTZ(x) BOOT_READ_BITFIELD((x), 8, 8)
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#define PSC_REG_MDCTL_SET_RESET_ISO(x, y) BOOT_SET_BITFIELD((x), (y), \
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12, 12)
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/* MDSTAT */
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#define PSC_REG_MDSTAT_GET_STATUS(x) BOOT_READ_BITFIELD((x), 5, 0)
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#define PSC_REG_MDSTAT_GET_LRSTZ(x) BOOT_READ_BITFIELD((x), 8, 8)
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#define PSC_REG_MDSTAT_GET_LRSTDONE(x) BOOT_READ_BITFIELD((x), 9, 9)
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#define PSC_REG_MDSTAT_GET_MRSTZ(x) BOOT_READ_BITFIELD((x), 10, 10)
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#define PSC_REG_MDSTAT_GET_MRSTDONE(x) BOOT_READ_BITFIELD((x), 11, 11)
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/* PDCTL states */
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#define PSC_REG_VAL_PDCTL_NEXT_ON 1
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#define PSC_REG_VAL_PDCTL_NEXT_OFF 0
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#define PSC_REG_VAL_PDCTL_PDMODE_SLEEP 0
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/* MDCTL states */
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#define PSC_REG_VAL_MDCTL_NEXT_SWRSTDISABLE 0
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#define PSC_REG_VAL_MDCTL_NEXT_OFF 2
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#define PSC_REG_VAL_MDCTL_NEXT_ON 3
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/* MDSTAT states */
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#define PSC_REG_VAL_MDSTAT_STATE_ON 3
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#define PSC_REG_VAL_MDSTAT_STATE_ENABLE_IN_PROG 0x24
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#define PSC_REG_VAL_MDSTAT_STATE_OFF 2
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#define PSC_REG_VAL_MDSTAT_STATE_DISABLE_IN_PROG1 0x20
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#define PSC_REG_VAL_MDSTAT_STATE_DISABLE_IN_PROG2 0x21
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#define PSC_REG_VAL_MDSTAT_STATE_DISABLE_IN_PROG3 0x22
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/*
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* Timeout limit on checking PTSTAT. This is the number of times the
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* wait function will be called before giving up.
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*/
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#define PSC_PTSTAT_TIMEOUT_LIMIT 100
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u32 psc_get_domain_num(u32 mod_num);
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int psc_enable_module(u32 mod_num);
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int psc_disable_module(u32 mod_num);
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int psc_disable_domain(u32 domain_num);
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int psc_module_keep_in_reset_enabled(u32 mod_num, bool gate_clocks);
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int psc_module_release_from_reset(u32 mod_num);
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#endif /* _PSC_DEFS_H_ */
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