Add a driver for the packet input processing unit. For now, the purpose

of this piece of code is to facilitate the use of fdt.

1 files changed, 92 insertions, 0 deletions

diff --git a/sys/arch/octeon/dev/octpip.c b/sys/arch/octeon/dev/octpip.c
new file mode 100644
index 00000000000..92c28ece406
--- /dev/null
+++ b/sys/arch/octeon/dev/octpip.c
@@ -0,0 +1,92 @@
+/*	$OpenBSD: octpip.c,v 1.1 2019/09/15 06:57:05 visa Exp $	*/
+
+/*
+ * Copyright (c) 2019 Visa Hankala
+ *
+ * Permission to use, copy, modify, and/or 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 <dev/ofw/fdt.h>
+#include <dev/ofw/openfirm.h>
+
+#include <machine/fdt.h>
+
+#include <octeon/dev/iobusvar.h>
+#include <octeon/dev/cn30xxgmxreg.h>
+
+struct octpip_softc {
+	struct device		 sc_dev;
+};
+
+int	 octpip_match(struct device *, void *, void *);
+void	 octpip_attach(struct device *, struct device *, void *);
+int	 octpip_print(void *, const char *);
+
+const struct cfattach octpip_ca = {
+	sizeof(struct octpip_softc), octpip_match, octpip_attach
+};
+
+struct cfdriver octpip_cd = {
+	NULL, "octpip", DV_DULL
+};
+
+int
+octpip_match(struct device *parent, void *match, void *aux)
+{
+	struct fdt_attach_args *faa = aux;
+
+	return OF_is_compatible(faa->fa_node, "cavium,octeon-3860-pip");
+}
+
+void
+octpip_attach(struct device *parent, struct device *self, void *aux)
+{
+	struct iobus_attach_args iaa;
+	struct fdt_attach_args *faa = aux;
+	uint32_t ifindex;
+	int node;
+
+	printf("\n");
+
+	for (node = OF_child(faa->fa_node); node != 0; node = OF_peer(node)) {
+		if (!OF_is_compatible(node, "cavium,octeon-3860-pip-interface"))
+			continue;
+		ifindex = OF_getpropint(node, "reg", (uint32_t)-1);
+		if (ifindex >= 16)
+			continue;
+		memset(&iaa, 0, sizeof(iaa));
+		iaa.aa_name = "cn30xxgmx";
+		iaa.aa_bust = faa->fa_iot;
+		iaa.aa_dmat = faa->fa_dmat;
+		iaa.aa_addr = GMX0_BASE_PORT0 + GMX_BLOCK_SIZE * ifindex;
+		iaa.aa_irq = -1;
+		iaa.aa_unitno = ifindex;
+		config_found(self, &iaa, octpip_print);
+	}
+}
+
+int
+octpip_print(void *aux, const char *parentname)
+{
+	struct iobus_attach_args *iaa = aux;
+
+	if (parentname != NULL)
+		printf("%s at %s", iaa->aa_name, parentname);
+	printf(" interface %d", iaa->aa_unitno);
+
+	return UNCONF;
+}