diff options
Diffstat (limited to 'sys/dev/fdt/pluart_fdt.c')
| -rw-r--r-- | sys/dev/fdt/pluart_fdt.c | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/sys/dev/fdt/pluart_fdt.c b/sys/dev/fdt/pluart_fdt.c new file mode 100644 index 00000000000..41a6b3de021 --- /dev/null +++ b/sys/dev/fdt/pluart_fdt.c @@ -0,0 +1,80 @@ +/* $OpenBSD: pluart_fdt.c,v 1.1 2018/07/02 12:46:20 kettenis Exp $ */ +/* + * Copyright (c) 2014 Patrick Wildt <patrick@blueri.se> + * Copyright (c) 2005 Dale Rahn <drahn@dalerahn.com> + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/tty.h> + +#include <machine/bus.h> +#include <machine/fdt.h> + +#include <dev/ic/pluartvar.h> + +#include <dev/ofw/fdt.h> +#include <dev/ofw/openfirm.h> + +int pluart_fdt_match(struct device *, void *, void *); +void pluart_fdt_attach(struct device *, struct device *, void *); + +struct cfattach pluart_fdt_ca = { + sizeof(struct pluart_softc), pluart_fdt_match, pluart_fdt_attach +}; + +void +pluart_init_cons(void) +{ + struct fdt_reg reg; + void *node; + + if ((node = fdt_find_cons("arm,pl011")) == NULL) + return; + if (fdt_get_reg(node, 0, ®)) + return; + + pluartcnattach(fdt_cons_bs_tag, reg.addr, B115200, TTYDEF_CFLAG); +} + +int +pluart_fdt_match(struct device *parent, void *self, void *aux) +{ + struct fdt_attach_args *faa = aux; + + return OF_is_compatible(faa->fa_node, "arm,pl011"); +} + +void +pluart_fdt_attach(struct device *parent, struct device *self, void *aux) +{ + struct fdt_attach_args *faa = aux; + struct pluart_softc *sc = (struct pluart_softc *) self; + + if (faa->fa_nreg < 1) { + printf(": no registers\n"); + return; + } + + sc->sc_irq = arm_intr_establish_fdt(faa->fa_node, IPL_TTY, pluart_intr, + sc, sc->sc_dev.dv_xname); + + sc->sc_iot = faa->fa_iot; + if (bus_space_map(sc->sc_iot, faa->fa_reg[0].addr, faa->fa_reg[0].size, + 0, &sc->sc_ioh)) + panic("pluartattach: bus_space_map failed!"); + + pluart_attach_common(sc, stdout_node == faa->fa_node); +} |