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f79753c3de
Add support command for debugging K3 power domains. This is useful with the HSM rearch setup, where power domains are directly controlled by SPL instead of going through the TI SCI layer. The debugging support is only available in the u-boot codebase though, so the raw register access power domain layer must be enabled on u-boot side for this to work. By default, u-boot side uses the TI SCI layer, and R5 SPL only uses the direct access methods. Signed-off-by: Tero Kristo <t-kristo@ti.com> Signed-off-by: Tero Kristo <kristo@kernel.org> Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
86 lines
1.9 KiB
C
86 lines
1.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Texas Instruments K3 Device Platform Data
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*
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* Copyright (C) 2020 Texas Instruments Incorporated - http://www.ti.com/
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*/
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#ifndef __K3_DEV_H__
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#define __K3_DEV_H__
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#include <asm/io.h>
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#include <linux/types.h>
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#include <stdint.h>
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#define LPSC_MODULE_EXISTS BIT(0)
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#define LPSC_NO_CLOCK_GATING BIT(1)
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#define LPSC_DEPENDS BIT(2)
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#define LPSC_HAS_RESET_ISO BIT(3)
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#define LPSC_HAS_LOCAL_RESET BIT(4)
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#define LPSC_NO_MODULE_RESET BIT(5)
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#define PSC_PD_EXISTS BIT(0)
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#define PSC_PD_ALWAYSON BIT(1)
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#define PSC_PD_DEPENDS BIT(2)
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#define MDSTAT_STATE_MASK 0x3f
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#define MDSTAT_BUSY_MASK 0x30
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#define MDSTAT_STATE_SWRSTDISABLE 0x0
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#define MDSTAT_STATE_ENABLE 0x3
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struct ti_psc {
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int id;
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void __iomem *base;
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};
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struct ti_pd;
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struct ti_pd {
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int id;
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int usecount;
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struct ti_psc *psc;
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struct ti_pd *depend;
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};
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struct ti_lpsc;
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struct ti_lpsc {
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int id;
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int usecount;
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struct ti_psc *psc;
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struct ti_pd *pd;
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struct ti_lpsc *depend;
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};
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struct ti_dev {
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struct ti_lpsc *lpsc;
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int id;
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};
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/**
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* struct ti_k3_pd_platdata - pm domain controller information structure
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*/
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struct ti_k3_pd_platdata {
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struct ti_psc *psc;
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struct ti_pd *pd;
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struct ti_lpsc *lpsc;
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struct ti_dev *devs;
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int num_psc;
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int num_pd;
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int num_lpsc;
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int num_devs;
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};
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#define PSC(_id, _base) { .id = _id, .base = (void *)_base, }
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#define PSC_PD(_id, _psc, _depend) { .id = _id, .psc = _psc, .depend = _depend }
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#define PSC_LPSC(_id, _psc, _pd, _depend) { .id = _id, .psc = _psc, .pd = _pd, .depend = _depend }
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#define PSC_DEV(_id, _lpsc) { .id = _id, .lpsc = _lpsc }
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extern const struct ti_k3_pd_platdata j721e_pd_platdata;
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extern const struct ti_k3_pd_platdata j7200_pd_platdata;
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u8 ti_pd_state(struct ti_pd *pd);
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u8 lpsc_get_state(struct ti_lpsc *lpsc);
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int ti_lpsc_transition(struct ti_lpsc *lpsc, u8 state);
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#endif
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