diff options
Diffstat (limited to 'sys/dev/fdt')
-rw-r--r-- | sys/dev/fdt/pinctrl.c | 74 |
1 files changed, 49 insertions, 25 deletions
diff --git a/sys/dev/fdt/pinctrl.c b/sys/dev/fdt/pinctrl.c index 4ceea49128d..04806b70ec1 100644 --- a/sys/dev/fdt/pinctrl.c +++ b/sys/dev/fdt/pinctrl.c @@ -1,6 +1,6 @@ -/* $OpenBSD: pinctrl.c,v 1.2 2018/08/27 10:03:35 jsg Exp $ */ +/* $OpenBSD: pinctrl.c,v 1.3 2019/04/23 18:32:26 kettenis Exp $ */ /* - * Copyright (c) 2018 Mark Kettenis <kettenis@openbsd.org> + * Copyright (c) 2018, 2019 Mark Kettenis <kettenis@openbsd.org> * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above @@ -65,7 +65,8 @@ pinctrl_match(struct device *parent, void *match, void *aux) { struct fdt_attach_args *faa = aux; - return OF_is_compatible(faa->fa_node, "pinctrl-single"); + return (OF_is_compatible(faa->fa_node, "pinctrl-single") || + OF_is_compatible(faa->fa_node, "pinconf-single")); } void @@ -89,10 +90,6 @@ pinctrl_attach(struct device *parent, struct device *self, void *aux) sc->sc_func_mask = OF_getpropint(faa->fa_node, "pinctrl-single,function-mask", 0); - if (sc->sc_func_mask == 0) { - printf(": bogus function mask\n"); - return; - } sc->sc_iot = faa->fa_iot; if (bus_space_map(sc->sc_iot, faa->fa_reg[0].addr, @@ -106,6 +103,34 @@ pinctrl_attach(struct device *parent, struct device *self, void *aux) printf("\n"); } +uint32_t +pinctrl_set2(int node, char *setting, uint32_t val) +{ + uint32_t values[2]; + + if (OF_getpropintarray(node, setting, values, sizeof(values)) != + sizeof(values)) + return val; + + val &= ~values[1]; + val |= (values[0] & values[1]); + return val; +} + +uint32_t +pinctrl_set4(int node, char *setting, uint32_t val) +{ + uint32_t values[4]; + + if (OF_getpropintarray(node, setting, values, sizeof(values)) != + sizeof(values)) + return val; + + val &= ~values[3]; + val |= (values[0] & values[3]); + return val; +} + int pinctrl_pinctrl(uint32_t phandle, void *cookie) { @@ -125,27 +150,26 @@ pinctrl_pinctrl(uint32_t phandle, void *cookie) OF_getpropintarray(node, "pinctrl-single,pins", pins, len); for (i = 0; i < len / sizeof(uint32_t); i += 2) { - if (sc->sc_reg_width == 16) { - uint16_t reg = pins[i]; - uint16_t func = pins[i + 1]; - uint16_t val; - + uint32_t reg = pins[i]; + uint32_t func = pins[i + 1]; + uint32_t val = 0; + + if (sc->sc_reg_width == 16) val = HREAD2(sc, reg); - val &= ~sc->sc_func_mask; - val |= (func & sc->sc_func_mask); - HWRITE2(sc, reg, val); - break; - } else if (sc->sc_reg_width == 32) { - uint32_t reg = pins[i]; - uint32_t func = pins[i + 1]; - uint32_t val; - + else if (sc->sc_reg_width == 32) val = HREAD4(sc, reg); - val &= ~sc->sc_func_mask; - val |= (func & sc->sc_func_mask); + + val &= ~sc->sc_func_mask; + val |= (func & sc->sc_func_mask); + + val = pinctrl_set2(node, "pinctrl-single,drive-strength", val); + val = pinctrl_set4(node, "pinctrl-single,bias-pulldown", val); + val = pinctrl_set4(node, "pinctrl-single,bias-pullup", val); + + if (sc->sc_reg_width == 16) + HWRITE2(sc, reg, val); + else if (sc->sc_reg_width == 32) HWRITE4(sc, reg, val); - break; - } } free(pins, M_TEMP, len); |