diff options
| author |   patrick <patrick@openbsd.org> | 2020-12-18 16:29:57 +0000 |
|---|---|---|
| committer | patrick <patrick@openbsd.org> | 2020-12-18 16:29:57 +0000 |
| commit | 59cc782f76fde806af6244fc7dc276a4e1798760 (patch) | |
| tree | dd91e9d5d559089c40c2470d1458d3d607e2cc77 /sys/dev/fdt/imxccm.c | |
| parent | Attach imxgpc(4) to i.MX8MP as well. (diff) | |
| download | wireguard-openbsd-59cc782f76fde806af6244fc7dc276a4e1798760.tar.xz wireguard-openbsd-59cc782f76fde806af6244fc7dc276a4e1798760.zip | |
Add support for the i.MX8MP USB clocks.
Diffstat (limited to 'sys/dev/fdt/imxccm.c')
| -rw-r--r-- | sys/dev/fdt/imxccm.c | 58 |
1 files changed, 57 insertions, 1 deletions
diff --git a/sys/dev/fdt/imxccm.c b/sys/dev/fdt/imxccm.c index 91253a01350..c245a5317ce 100644 --- a/sys/dev/fdt/imxccm.c +++ b/sys/dev/fdt/imxccm.c @@ -1,4 +1,4 @@ -/* $OpenBSD: imxccm.c,v 1.23 2020/11/07 21:42:47 patrick Exp $ */ +/* $OpenBSD: imxccm.c,v 1.24 2020/12/18 16:29:57 patrick Exp $ */ /* * Copyright (c) 2012-2013 Patrick Wildt <patrick@blueri.se> * @@ -248,6 +248,7 @@ uint32_t imxccm_imx8mm_ahb(struct imxccm_softc *sc, uint32_t); uint32_t imxccm_imx8mm_i2c(struct imxccm_softc *sc, uint32_t); uint32_t imxccm_imx8mm_uart(struct imxccm_softc *sc, uint32_t); uint32_t imxccm_imx8mm_usdhc(struct imxccm_softc *sc, uint32_t); +uint32_t imxccm_imx8mp_hsio_axi(struct imxccm_softc *sc, uint32_t); uint32_t imxccm_imx8mq_ecspi(struct imxccm_softc *sc, uint32_t); uint32_t imxccm_imx8mq_enet(struct imxccm_softc *sc, uint32_t); uint32_t imxccm_imx8mq_ahb(struct imxccm_softc *sc, uint32_t); @@ -883,6 +884,29 @@ imxccm_imx8mm_usdhc(struct imxccm_softc *sc, uint32_t idx) } uint32_t +imxccm_imx8mp_hsio_axi(struct imxccm_softc *sc, uint32_t idx) +{ + uint32_t mux; + + if (idx >= sc->sc_nmuxs || sc->sc_muxs[idx].reg == 0) + return 0; + + mux = HREAD4(sc, sc->sc_muxs[idx].reg); + mux >>= sc->sc_muxs[idx].shift; + mux &= sc->sc_muxs[idx].mask; + + switch (mux) { + case 0: + return clock_get_frequency(sc->sc_node, "osc_24m"); + case 1: + return 500 * 1000 * 1000; /* sys2_pll_500m */ + default: + printf("%s: 0x%08x 0x%08x\n", __func__, idx, mux); + return 0; + } +} + +uint32_t imxccm_imx8mq_ecspi(struct imxccm_softc *sc, uint32_t idx) { uint32_t mux; @@ -1500,6 +1524,9 @@ imxccm_get_frequency(void *cookie, uint32_t *cells) case IMX8MP_CLK_ENET_AXI: freq = imxccm_imx8mm_enet(sc, idx); break; + case IMX8MP_CLK_AHB: + freq = imxccm_imx8mm_ahb(sc, idx); + break; case IMX8MP_CLK_I2C1: case IMX8MP_CLK_I2C2: case IMX8MP_CLK_I2C3: @@ -1519,6 +1546,9 @@ imxccm_get_frequency(void *cookie, uint32_t *cells) case IMX8MP_CLK_USDHC3: freq = imxccm_imx8mm_usdhc(sc, idx); break; + case IMX8MP_CLK_HSIO_AXI: + freq = imxccm_imx8mp_hsio_axi(sc, idx); + break; default: printf("%s: 0x%08x\n", __func__, idx); return 0; @@ -1694,6 +1724,13 @@ imxccm_set_frequency(void *cookie, uint32_t *cells, uint32_t freq) parent_freq = imxccm_imx8mm_usdhc(sc, idx); return imxccm_imx8m_set_div(sc, idx, freq, parent_freq); } + } else if (sc->sc_divs == imx8mp_divs) { + switch (idx) { + case IMX8MP_CLK_HSIO_AXI: + if (imxccm_get_frequency(sc, cells) != freq) + break; + return 0; + } } else if (sc->sc_divs == imx8mq_divs) { switch (idx) { case IMX8MQ_CLK_ARM: @@ -1813,6 +1850,25 @@ imxccm_set_parent(void *cookie, uint32_t *cells, uint32_t *pcells) HWRITE4(sc, sc->sc_muxs[idx].reg, mux); return 0; } + } else if (sc->sc_muxs == imx8mp_muxs) { + switch (idx) { + case IMX8MP_CLK_USB_PHY_REF: + if (pidx != IMX8MP_CLK_24M) + break; + mux = HREAD4(sc, sc->sc_muxs[idx].reg); + mux &= ~(sc->sc_muxs[idx].mask << sc->sc_muxs[idx].shift); + mux |= (0x0 << sc->sc_muxs[idx].shift); + HWRITE4(sc, sc->sc_muxs[idx].reg, mux); + return 0; + case IMX8MP_CLK_HSIO_AXI: + if (pidx != IMX8MP_SYS_PLL2_500M) + 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; + } } else if (sc->sc_muxs == imx8mq_muxs) { switch (idx) { case IMX8MQ_CLK_A53_SRC: |