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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 16:34:52 +05:30
committed by Lokesh Vutla
parent 144464bd2c
commit f79753c3de
5 changed files with 206 additions and 3 deletions
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include/k3-dev.h
+9
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@@ -22,6 +22,11 @@
#define PSC_PD_ALWAYSON BIT(1)
#define PSC_PD_DEPENDS BIT(2)
#define MDSTAT_STATE_MASK 0x3f
#define MDSTAT_BUSY_MASK 0x30
#define MDSTAT_STATE_SWRSTDISABLE 0x0
#define MDSTAT_STATE_ENABLE 0x3
struct ti_psc {
int id;
void __iomem *base;
@@ -73,4 +78,8 @@ struct ti_k3_pd_platdata {
extern const struct ti_k3_pd_platdata j721e_pd_platdata;
extern const struct ti_k3_pd_platdata j7200_pd_platdata;
u8 ti_pd_state(struct ti_pd *pd);
u8 lpsc_get_state(struct ti_lpsc *lpsc);
int ti_lpsc_transition(struct ti_lpsc *lpsc, u8 state);
#endif