diff options
| author | Mark Kettenis <kettenis@cvs.openbsd.org> | 2018-08-03 16:45:18 +0000 |
|---|---|---|
| committer | Mark Kettenis <kettenis@cvs.openbsd.org> | 2018-08-03 16:45:18 +0000 |
| commit | d613fba149a41438d558f92ccd4bd71951d001bf (patch) | |
| tree | 8219af4ea5a7203a865df8fc081122c65ca32a48 /sys/dev | |
| parent | 2c4b8de745a0ff2a6a994d7889f98dd2a952d231 (diff) | |
Implement DVFS support.
ok patrick@
Diffstat (limited to 'sys/dev')
| -rw-r--r-- | sys/dev/fdt/rkclock.c | 28 |
1 files changed, 1 insertions, 27 deletions
diff --git a/sys/dev/fdt/rkclock.c b/sys/dev/fdt/rkclock.c index 28bf5091e30..6161ea5ffa8 100644 --- a/sys/dev/fdt/rkclock.c +++ b/sys/dev/fdt/rkclock.c @@ -1,4 +1,4 @@ -/* $OpenBSD: rkclock.c,v 1.27 2018/08/01 15:55:50 kettenis Exp $ */ +/* $OpenBSD: rkclock.c,v 1.28 2018/08/03 16:45:17 kettenis Exp $ */ /* * Copyright (c) 2017, 2018 Mark Kettenis <kettenis@openbsd.org> * @@ -762,38 +762,12 @@ struct rkclock_softc *rk3399_pmucru_sc; void rk3399_init(struct rkclock_softc *sc) { - int node; int i; /* PMUCRU instance should attach before us. */ KASSERT(rk3399_pmucru_sc != NULL); /* - * Since the hardware comes up with a really conservative CPU - * clock frequency, and U-Boot doesn't set it to a more - * reasonable default, try to do so here. These defaults were - * chosen assuming that the voltage for both clusters is at - * least 1.0 V. Only do this on the Firefly-RK3399 for now - * where this is likely to be true given the default voltages - * for the regulators on that board. - */ - node = OF_finddevice("/"); - if (OF_is_compatible(node, "firefly,firefly-rk3399")) { - uint32_t idx; - - /* Run the "LITTLE" cluster at 1.2 GHz. */ - idx = RK3399_ARMCLKL; - rk3399_set_frequency(sc, &idx, 1200000000); - -#ifdef MULTIPROCESSOR - /* Switch PLL of the "big" cluster into normal mode. */ - HWRITE4(sc, RK3399_CRU_BPLL_CON(3), - RK3399_CRU_PLL_PLL_WORK_MODE_MASK << 16 | - RK3399_CRU_PLL_PLL_WORK_MODE_NORMAL); -#endif - } - - /* * The U-Boot shipped on the Theobroma Systems RK3399-Q7 * module is buggy and sets the parent of the clock for the * "big" cluster to LPLL. Undo that mistake here such that |