Import the exynos work into tree. This is from Bitrig. Discussed with and OK jsg, also OK from krw.

1 files changed, 114 insertions, 0 deletions

diff --git a/sys/arch/armv7/exynos/expower.c b/sys/arch/armv7/exynos/expower.c
new file mode 100644
index 00000000000..4bb4a2b7fd8
--- /dev/null
+++ b/sys/arch/armv7/exynos/expower.c
@@ -0,0 +1,114 @@
+/* $OpenBSD: expower.c,v 1.1 2015/01/26 02:48:24 bmercer Exp $ */
+/*
+ * Copyright (c) 2012-2013 Patrick Wildt <patrick@blueri.se>
+ *
+ * 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/queue.h>
+#include <sys/malloc.h>
+#include <sys/sysctl.h>
+#include <sys/device.h>
+#include <sys/evcount.h>
+#include <sys/socket.h>
+#include <sys/timeout.h>
+#include <machine/intr.h>
+#include <machine/bus.h>
+#include <machine/fdt.h>
+#include <armv7/armv7/armv7var.h>
+#include <armv7/exynos/expowervar.h>
+
+/* registers */
+#define POWER_PHY_CTRL				0x708
+
+/* bits and bytes */
+#define POWER_PHY_CTRL_USB_HOST_EN		(1 << 0)
+
+#define HREAD4(sc, reg)							\
+	(bus_space_read_4((sc)->sc_iot, (sc)->sc_ioh, (reg)))
+#define HWRITE4(sc, reg, val)						\
+	bus_space_write_4((sc)->sc_iot, (sc)->sc_ioh, (reg), (val))
+#define HSET4(sc, reg, bits)						\
+	HWRITE4((sc), (reg), HREAD4((sc), (reg)) | (bits))
+#define HCLR4(sc, reg, bits)						\
+	HWRITE4((sc), (reg), HREAD4((sc), (reg)) & ~(bits))
+
+struct expower_softc {
+	struct device		sc_dev;
+	bus_space_tag_t		sc_iot;
+	bus_space_handle_t	sc_ioh;
+};
+
+struct expower_softc *expower_sc;
+
+int expower_match(struct device *parent, void *v, void *aux);
+void expower_attach(struct device *parent, struct device *self, void *args);
+
+struct cfattach	expower_ca = {
+	sizeof (struct expower_softc), NULL, expower_attach
+};
+struct cfattach	expower_fdt_ca = {
+	sizeof (struct expower_softc), expower_match, expower_attach
+};
+
+struct cfdriver expower_cd = {
+	NULL, "expower", DV_DULL
+};
+
+int
+expower_match(struct device *parent, void *v, void *aux)
+{
+	struct armv7_attach_args *aa = aux;
+
+	if (fdt_node_compatible("samsung,exynos5250-pmu", aa->aa_node))
+		return 1;
+
+	return 0;
+}
+
+void
+expower_attach(struct device *parent, struct device *self, void *args)
+{
+	struct armv7_attach_args *aa = args;
+	struct expower_softc *sc = (struct expower_softc *) self;
+	struct fdt_memory mem;
+
+	sc->sc_iot = aa->aa_iot;
+	if (aa->aa_node) {
+		if (fdt_get_memory_address(aa->aa_node, 0, &mem))
+			panic("%s: could not extract memory data from FDT",
+			    __func__);
+	} else {
+		mem.addr = aa->aa_dev->mem[0].addr;
+		mem.size = aa->aa_dev->mem[0].size;
+	}
+	if (bus_space_map(sc->sc_iot, mem.addr, mem.size, 0, &sc->sc_ioh))
+		panic("%s: bus_space_map failed!", __func__);
+
+	printf("\n");
+
+	expower_sc = sc;
+}
+
+void
+expower_usbhost_phy_ctrl(int on)
+{
+	struct expower_softc *sc = expower_sc;
+
+	if (on)
+		HSET4(sc, POWER_PHY_CTRL, POWER_PHY_CTRL_USB_HOST_EN);
+	else
+		HCLR4(sc, POWER_PHY_CTRL, POWER_PHY_CTRL_USB_HOST_EN);
+}