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cmd: ti: pd: Add debug command for K3 power domains

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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>
This commit is contained in:
Tero Kristo
2021-06-11 11:45:16 +03:00
committed by Lokesh Vutla
parent 144464bd2c
commit f79753c3de
5 changed files with 206 additions and 3 deletions
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6
drivers/power/domain/ti-power-domain.c
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@@ -132,7 +132,7 @@ static void ti_pd_transition(struct ti_pd *pd)
psc_write(BIT(pd->id), pd->psc, PSC_PTCMD);
}
static u8 ti_pd_state(struct ti_pd *pd)
u8 ti_pd_state(struct ti_pd *pd)
{
return pd_read(pd, PSC_PDCTL) & PDCTL_STATE_MASK;
}
@@ -227,12 +227,12 @@ static int ti_lpsc_wait(struct ti_lpsc *lpsc)
return ret;
}
static u8 lpsc_get_state(struct ti_lpsc *lpsc)
u8 lpsc_get_state(struct ti_lpsc *lpsc)
{
return lpsc_read(lpsc, PSC_MDCTL) & MDSTAT_STATE_MASK;
}
static int ti_lpsc_transition(struct ti_lpsc *lpsc, u8 state)
int ti_lpsc_transition(struct ti_lpsc *lpsc, u8 state)
{
struct ti_pd *psc_pd;
int ret;