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Diffstat (limited to 'sys/dev/fdt')
-rw-r--r--sys/dev/fdt/pinctrl.c74
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);