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feat(nxp-clk): add partition reset utilities

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MC_RGM is a hardware block involved in resetting peripherals and
partitions. Here, the accessories for partition reset are added.

Change-Id: If00755fe0e93ba2e4841f95ed5ae3c87db20bebf
Signed-off-by: Ghennadi Procopciuc <ghennadi.procopciuc@nxp.com>
This commit is contained in:
Ghennadi Procopciuc 2024-09-16 16:20:08 +03:00
parent af3020e2ae
commit 11a7c54072
2 changed files with 22 additions and 1 deletions
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2
drivers/nxp/clk/s32cc/include/s32cc-mc-rgm.h
View file

@ -8,5 +8,7 @@
#include <stdint.h>
void mc_rgm_periph_reset(uintptr_t rgm, uint32_t part, uint32_t value);
void mc_rgm_release_part(uintptr_t rgm, uint32_t part);
void mc_rgm_wait_part_deassert(uintptr_t rgm, uint32_t part);
#endif /* MC_RGM_H */

21
drivers/nxp/clk/s32cc/mc_rgm.c
View file

@ -7,7 +7,10 @@
#include <lib/utils_def.h>
#include <s32cc-mc-rgm.h>
#define MC_RGM_PRST(MC_RGM, PER) ((MC_RGM) + 0x40UL + ((PER) * 0x8UL))
#define MC_RGM_PRST(RGM, PER) ((RGM) + 0x40UL + ((PER) * 0x8UL))
#define MC_RGM_PRST_PERIPH_N_RST(PER) BIT_32(PER)
#define MC_RGM_PSTAT(RGM, PER) ((RGM) + 0x140UL + ((PER) * 0x8UL))
#define MC_RGM_PSTAT_PERIPH(PER) BIT_32(PER)
/* ERR051700
* Releasing more than one Software Resettable Domain (SRD)
@ -63,3 +66,19 @@ void mc_rgm_periph_reset(uintptr_t rgm, uint32_t part, uint32_t value)
mmio_write_32(MC_RGM_PRST(rgm, part), value);
}
#endif /* ERRATA_S32_051700 */
void mc_rgm_release_part(uintptr_t rgm, uint32_t part)
{
uint32_t reg;
reg = mmio_read_32(MC_RGM_PRST(rgm, part));
reg &= ~MC_RGM_PRST_PERIPH_N_RST(0);
mc_rgm_periph_reset(rgm, part, reg);
}
void mc_rgm_wait_part_deassert(uintptr_t rgm, uint32_t part)
{
while ((mmio_read_32(MC_RGM_PSTAT(rgm, part)) &
MC_RGM_PSTAT_PERIPH(0)) != 0U) {
}
}