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authorjakllsch <jakllsch@NetBSD.org>2018-10-19 21:09:09 +0000
committerjakllsch <jakllsch@NetBSD.org>2018-10-19 21:09:09 +0000
commit2c0f1921d5eebb357496abe06ef4b46bfc799d91 (patch)
tree663142ee90b031832be12c21263f544e87089c2b /sys/dev/fdt
parent690000dab72d23ddaeb6abd1ba7b3d8c0042fe97 (diff)
Add amdccp(4) driver for AMD Cryptographic Coprocessor, as found on the
A11xx Opterons. Driver currently provides RNG service only.
Diffstat (limited to 'sys/dev/fdt')
-rw-r--r--sys/dev/fdt/amdccp_fdt.c92
-rw-r--r--sys/dev/fdt/files.fdt6
2 files changed, 97 insertions, 1 deletions
diff --git a/sys/dev/fdt/amdccp_fdt.c b/sys/dev/fdt/amdccp_fdt.c
new file mode 100644
index 00000000000..a459dd95703
--- /dev/null
+++ b/sys/dev/fdt/amdccp_fdt.c
@@ -0,0 +1,92 @@
+/* $NetBSD: amdccp_fdt.c,v 1.1 2018/10/19 21:09:10 jakllsch Exp $ */
+
+/*
+ * Copyright (c) 2018 Jonathan A. Kollasch
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+
+__KERNEL_RCSID(0, "$NetBSD: amdccp_fdt.c,v 1.1 2018/10/19 21:09:10 jakllsch Exp $");
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/device.h>
+#include <sys/bus.h>
+
+#include <dev/fdt/fdtvar.h>
+
+#include <dev/ic/amdccpvar.h>
+
+struct amdccp_fdt_softc {
+ struct amdccp_softc sc_sc;
+};
+
+static int amdccp_fdt_match(device_t, cfdata_t, void *);
+static void amdccp_fdt_attach(device_t, device_t, void *);
+
+CFATTACH_DECL_NEW(amdccp_fdt, sizeof(struct amdccp_fdt_softc),
+ amdccp_fdt_match, amdccp_fdt_attach, NULL, NULL);
+
+static const struct of_compat_data compat_data[] = {
+ { "amd,ccp-seattle-v1a", },
+ { NULL }
+};
+
+static int
+amdccp_fdt_match(device_t parent, cfdata_t cf, void *aux)
+{
+ const struct fdt_attach_args * const faa = aux;
+
+ return of_match_compat_data(faa->faa_phandle, compat_data);
+}
+
+static void
+amdccp_fdt_attach(device_t parent, device_t self, void *aux)
+{
+ struct amdccp_fdt_softc * const fsc = device_private(self);
+ struct amdccp_softc * const sc = &fsc->sc_sc;
+ const struct fdt_attach_args * const faa = aux;
+ const int phandle = faa->faa_phandle;
+ bus_addr_t addr;
+ bus_size_t size;
+
+ fsc->sc_sc.sc_dev = self;
+
+ if (fdtbus_get_reg(phandle, 0, &addr, &size) != 0) {
+ aprint_error(": couldn't get registers\n");
+ return;
+ }
+
+ sc->sc_bst = faa->faa_bst;
+ if (bus_space_map(sc->sc_bst, addr, size, 0, &sc->sc_bsh) != 0) {
+ aprint_error(": couldn't map registers\n");
+ return;
+ }
+
+ aprint_naive("\n");
+ aprint_normal(": AMD CCP\n");
+
+ amdccp_common_attach(sc);
+}
diff --git a/sys/dev/fdt/files.fdt b/sys/dev/fdt/files.fdt
index 897f9f9ba7d..c180880ffa7 100644
--- a/sys/dev/fdt/files.fdt
+++ b/sys/dev/fdt/files.fdt
@@ -1,4 +1,4 @@
-# $NetBSD: files.fdt,v 1.40 2018/10/15 23:50:48 jmcneill Exp $
+# $NetBSD: files.fdt,v 1.41 2018/10/19 21:09:10 jakllsch Exp $
include "external/bsd/libfdt/conf/files.libfdt"
@@ -134,3 +134,7 @@ file dev/fdt/ahcisata_fdt.c ahcisata_fdt
# Designware I2C
attach dwiic at fdt with dwiic_fdt
file dev/fdt/dwiic_fdt.c dwiic_fdt
+
+# AMD Cryptographic Coprocessor
+attach amdccp at fdt with amdccp_fdt
+file dev/fdt/amdccp_fdt.c amdccp_fdt