diff options
| author | Mark Kettenis <kettenis@cvs.openbsd.org> | 2020-04-15 15:40:07 +0000 |
|---|---|---|
| committer | Mark Kettenis <kettenis@cvs.openbsd.org> | 2020-04-15 15:40:07 +0000 |
| commit | 48116670042ba9a3f68db33c0a49a206f3415692 (patch) | |
| tree | c37f65c9e1149693dd812f8e231af1256d4bf027 | |
| parent | defaa2480e925d3ec2551e18328b03170f78bb51 (diff) | |
Add support for the Armada 3720 CPU clock.
ok patrick@
| -rw-r--r-- | sys/dev/fdt/mvclock.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/sys/dev/fdt/mvclock.c b/sys/dev/fdt/mvclock.c index 7accdad05f4..3719ef106d0 100644 --- a/sys/dev/fdt/mvclock.c +++ b/sys/dev/fdt/mvclock.c @@ -1,4 +1,4 @@ -/* $OpenBSD: mvclock.c,v 1.5 2019/10/07 19:28:43 patrick Exp $ */ +/* $OpenBSD: mvclock.c,v 1.6 2020/04/15 15:40:06 kettenis Exp $ */ /* * Copyright (c) 2018 Mark Kettenis <kettenis@openbsd.org> * @@ -250,6 +250,7 @@ cp110_enable(void *cookie, uint32_t *cells, int on) #define PERIPH_NB_SQF 0x7 #define PERIPH_NB_I2C2 0x9 #define PERIPH_NB_I2C1 0xa +#define PERIPH_NB_CPU 0x10 #define PERIPH_SB_GBE1_CORE 0x7 #define PERIPH_SB_GBE0_CORE 0x8 #define PERIPH_SB_USB32_USB2_SYS 0xb @@ -266,6 +267,7 @@ cp110_enable(void *cookie, uint32_t *cells, int on) void a3700_periph_enable(struct mvclock_softc *, uint32_t, int); uint32_t a3700_periph_tbg_get_frequency(struct mvclock_softc *, uint32_t); +uint32_t a3700_periph_get_div(struct mvclock_softc *, uint32_t, uint32_t); uint32_t a3700_periph_get_double_div(struct mvclock_softc *, uint32_t, uint32_t, uint32_t); @@ -309,6 +311,10 @@ a3700_periph_nb_get_frequency(void *cookie, uint32_t *cells) freq /= a3700_periph_get_double_div(sc, PERIPH_DIV_SEL1, 27, 24); return freq; + case PERIPH_NB_CPU: + freq = a3700_periph_tbg_get_frequency(sc, 22); + freq /= a3700_periph_get_div(sc, PERIPH_DIV_SEL0, 28); + return freq; default: break; } @@ -373,6 +379,13 @@ a3700_periph_tbg_get_frequency(struct mvclock_softc *sc, uint32_t idx) } uint32_t +a3700_periph_get_div(struct mvclock_softc *sc, uint32_t off, uint32_t idx) +{ + uint32_t reg = HREAD4(sc, off); + return ((reg >> idx) & PERIPH_DIV_SEL_MASK); +} + +uint32_t a3700_periph_get_double_div(struct mvclock_softc *sc, uint32_t off, uint32_t idx0, uint32_t idx1) { |