Add imxgpc(4), a driver for the i.MX6 General Power Controller (GPC) which

acts as a "transparent" interrupt controller.  This driver just hands
interrupt handlers to its parent (the Cortex-A9 GIC).  It doesn't implement
any powermanagement features yet.

ok patrick@

2 files changed, 67 insertions, 1 deletions

diff --git a/sys/arch/armv7/imx/files.imx b/sys/arch/armv7/imx/files.imx
index 20147294c45..83fd4d4a82b 100644
--- a/sys/arch/armv7/imx/files.imx
+++ b/sys/arch/armv7/imx/files.imx
@@ -1,4 +1,4 @@
-#	$OpenBSD: files.imx,v 1.15 2016/07/12 19:17:49 kettenis Exp $
+#	$OpenBSD: files.imx,v 1.16 2016/08/04 14:31:50 kettenis Exp $
 
 define imx {}
 device imx: imx
@@ -20,6 +20,10 @@ device imxiomuxc
 attach imxiomuxc at imx
 file	arch/armv7/imx/imxiomuxc.c	imxiomuxc
 
+device imxgpc
+attach imxgpc at fdt
+file	arch/armv7/imx/imxgpc.c		imxgpc
+
 device imxdog
 attach imxdog at fdt
 file	arch/armv7/imx/imxdog.c		imxdog
diff --git a/sys/arch/armv7/imx/imxgpc.c b/sys/arch/armv7/imx/imxgpc.c
new file mode 100644
index 00000000000..27559b322ab
--- /dev/null
+++ b/sys/arch/armv7/imx/imxgpc.c
@@ -0,0 +1,62 @@
+/*	$OpenBSD: imxgpc.c,v 1.1 2016/08/04 14:31:50 kettenis Exp $	*/
+/*
+ * Copyright (c) 2016 Mark Kettenis
+ *
+ * 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/device.h>
+
+#include <machine/fdt.h>
+
+#include <dev/ofw/openfirm.h>
+
+struct imxgpc_softc {
+	struct device	sc_dev;
+	struct interrupt_controller sc_ic;
+};
+
+int	imxgpc_match(struct device *, void *, void *);
+void	imxgpc_attach(struct device *, struct device *, void *);
+
+struct cfattach imxgpc_ca = {
+	sizeof(struct imxgpc_softc), imxgpc_match, imxgpc_attach
+};
+
+struct cfdriver imxgpc_cd = {
+	NULL, "imxgpc", DV_DULL
+};
+
+int
+imxgpc_match(struct device *parent, void *match, void *aux)
+{
+	struct fdt_attach_args *faa = aux;
+
+	return OF_is_compatible(faa->fa_node, "fsl,imx6q-gpc");
+}
+
+void
+imxgpc_attach(struct device *parent, struct device *self, void *aux)
+{
+	struct fdt_attach_args *faa = aux;
+	struct imxgpc_softc *sc = (struct imxgpc_softc *)self;
+
+	sc->sc_ic.ic_node = faa->fa_node;
+	sc->sc_ic.ic_cookie = &sc->sc_ic;
+	sc->sc_ic.ic_establish = arm_intr_parent_establish_fdt;
+	arm_intr_register_fdt(&sc->sc_ic);
+
+	printf("\n");
+}