diff options
Diffstat (limited to 'sys/dev/dwc/if_dwc.c')
| -rw-r--r-- | sys/dev/dwc/if_dwc.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/sys/dev/dwc/if_dwc.c b/sys/dev/dwc/if_dwc.c index f0548d8..1984c48 100644 --- a/sys/dev/dwc/if_dwc.c +++ b/sys/dev/dwc/if_dwc.c @@ -70,6 +70,11 @@ __FBSDID("$FreeBSD$"); #include <dev/ofw/ofw_bus.h> #include <dev/ofw/ofw_bus_subr.h> +#ifdef EXT_RESOURCES +#include <dev/extres/clk/clk.h> +#include <dev/extres/hwreset/hwreset.h> +#endif + #include "if_dwc_if.h" #include "gpio_if.h" #include "miibus_if.h" @@ -1068,6 +1073,36 @@ dwc_reset(device_t dev) return (0); } +#ifdef EXT_RESOURCES +static int +dwc_clock_init(device_t dev) +{ + hwreset_t rst; + clk_t clk; + int error; + + /* Enable clock */ + if (clk_get_by_ofw_name(dev, "stmmaceth", &clk) == 0) { + error = clk_enable(clk); + if (error != 0) { + device_printf(dev, "could not enable main clock\n"); + return (error); + } + } + + /* De-assert reset */ + if (hwreset_get_by_ofw_name(dev, "stmmaceth", &rst) == 0) { + error = hwreset_deassert(rst); + if (error != 0) { + device_printf(dev, "could not de-assert reset\n"); + return (error); + } + } + + return (0); +} +#endif + static int dwc_probe(device_t dev) { @@ -1101,6 +1136,11 @@ dwc_attach(device_t dev) if (IF_DWC_INIT(dev) != 0) return (ENXIO); +#ifdef EXT_RESOURCES + if (dwc_clock_init(dev) != 0) + return (ENXIO); +#endif + if (bus_alloc_resources(dev, dwc_spec, sc->res)) { device_printf(dev, "could not allocate resources\n"); return (ENXIO); |
