diff options
| author | Patrick Wildt <patrick@cvs.openbsd.org> | 2019-01-11 08:00:35 +0000 |
|---|---|---|
| committer | Patrick Wildt <patrick@cvs.openbsd.org> | 2019-01-11 08:00:35 +0000 |
| commit | 659fe99e9f9ec2ac49d30d3fee9c247db20de9e7 (patch) | |
| tree | 7ce0831f32cab7d98309cd96f84660837c3417db /sys/dev/fdt | |
| parent | 009291d30faeb45cf0142982979eeee0b21bf40e (diff) | |
Add support for changing the parent of the PCIe clocks. We will
use this for setting the PCIe clocks to the correct frequency.
ok kettenis@
Diffstat (limited to 'sys/dev/fdt')
| -rw-r--r-- | sys/dev/fdt/imxccm.c | 20 | ||||
| -rw-r--r-- | sys/dev/fdt/imxccm_clocks.h | 2 |
2 files changed, 21 insertions, 1 deletions
diff --git a/sys/dev/fdt/imxccm.c b/sys/dev/fdt/imxccm.c index e1e0ddd42cf..0ec5e31bb2c 100644 --- a/sys/dev/fdt/imxccm.c +++ b/sys/dev/fdt/imxccm.c @@ -1,4 +1,4 @@ -/* $OpenBSD: imxccm.c,v 1.11 2018/08/20 16:48:03 patrick Exp $ */ +/* $OpenBSD: imxccm.c,v 1.12 2019/01/11 08:00:34 patrick Exp $ */ /* * Copyright (c) 2012-2013 Patrick Wildt <patrick@blueri.se> * @@ -1243,6 +1243,24 @@ imxccm_set_parent(void *cookie, uint32_t *cells, uint32_t *pcells) mux |= (0x1 << sc->sc_muxs[idx].shift); HWRITE4(sc, sc->sc_muxs[idx].reg, mux); return 0; + case IMX8MQ_CLK_PCIE1_CTRL_SRC: + case IMX8MQ_CLK_PCIE2_CTRL_SRC: + if (pidx != IMX8MQ_SYS2_PLL_250M) + break; + mux = HREAD4(sc, sc->sc_muxs[idx].reg); + mux &= ~(sc->sc_muxs[idx].mask << sc->sc_muxs[idx].shift); + mux |= (0x1 << sc->sc_muxs[idx].shift); + HWRITE4(sc, sc->sc_muxs[idx].reg, mux); + return 0; + case IMX8MQ_CLK_PCIE1_PHY_SRC: + case IMX8MQ_CLK_PCIE2_PHY_SRC: + if (pidx != IMX8MQ_SYS2_PLL_100M) + break; + mux = HREAD4(sc, sc->sc_muxs[idx].reg); + mux &= ~(sc->sc_muxs[idx].mask << sc->sc_muxs[idx].shift); + mux |= (0x1 << sc->sc_muxs[idx].shift); + HWRITE4(sc, sc->sc_muxs[idx].reg, mux); + return 0; } } diff --git a/sys/dev/fdt/imxccm_clocks.h b/sys/dev/fdt/imxccm_clocks.h index 83d5a5056d8..145189e1707 100644 --- a/sys/dev/fdt/imxccm_clocks.h +++ b/sys/dev/fdt/imxccm_clocks.h @@ -297,6 +297,8 @@ struct imxccm_mux imx7d_muxs[] = { #define IMX8MQ_SYS1_PLL_266M 0x4c #define IMX8MQ_SYS1_PLL_400M 0x4d #define IMX8MQ_SYS1_PLL_800M 0x4e +#define IMX8MQ_SYS2_PLL_100M 0x50 +#define IMX8MQ_SYS2_PLL_250M 0x54 #define IMX8MQ_SYS2_PLL_500M 0x56 #define IMX8MQ_CLK_A53_SRC 0x58 #define IMX8MQ_CLK_A53_CG 0x59 |