Module Name: src
Committed By: jmcneill
Date: Fri Jun 2 11:04:01 UTC 2017
Modified Files:
src/sys/arch/arm/fdt: files.fdt
Added Files:
src/sys/arch/arm/fdt: plmmc_fdt.c
Log Message:
Add fdt glue for ARM PrimeCell Multimedia Card Interface (MMCI).
To generate a diff of this commit:
cvs rdiff -u -r1.5 -r1.6 src/sys/arch/arm/fdt/files.fdt
cvs rdiff -u -r0 -r1.1 src/sys/arch/arm/fdt/plmmc_fdt.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/arch/arm/fdt/files.fdt
diff -u src/sys/arch/arm/fdt/files.fdt:1.5 src/sys/arch/arm/fdt/files.fdt:1.6
--- src/sys/arch/arm/fdt/files.fdt:1.5 Fri Jun 2 10:46:07 2017
+++ src/sys/arch/arm/fdt/files.fdt Fri Jun 2 11:04:01 2017
@@ -1,4 +1,4 @@
-# $NetBSD: files.fdt,v 1.5 2017/06/02 10:46:07 jmcneill Exp $
+# $NetBSD: files.fdt,v 1.6 2017/06/02 11:04:01 jmcneill Exp $
device armfdt { }: bus_space_generic, fdtbus
attach armfdt at root with arm_fdt
@@ -15,6 +15,9 @@ device gic: mpcorebus
attach gic at fdt with gic_fdt
file arch/arm/fdt/gic_fdt.c gic_fdt
+attach plmmc at fdt with plmmc_fdt
+file arch/arm/fdt/plmmc_fdt.c plmmc_fdt
+
attach smsh at fdt with smsh_fdt
file arch/arm/fdt/smsh_fdt.c smsh_fdt
Added files:
Index: src/sys/arch/arm/fdt/plmmc_fdt.c
diff -u /dev/null src/sys/arch/arm/fdt/plmmc_fdt.c:1.1
--- /dev/null Fri Jun 2 11:04:01 2017
+++ src/sys/arch/arm/fdt/plmmc_fdt.c Fri Jun 2 11:04:01 2017
@@ -0,0 +1,109 @@
+/* $NetBSD: plmmc_fdt.c,v 1.1 2017/06/02 11:04:01 jmcneill Exp $ */
+
+/*-
+ * Copyright (c) 2017 Jared McNeill <[email protected]>
+ * 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 AUTHOR ``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 AUTHOR 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: plmmc_fdt.c,v 1.1 2017/06/02 11:04:01 jmcneill Exp $");
+
+#include <sys/param.h>
+#include <sys/bus.h>
+#include <sys/device.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+
+#include <dev/fdt/fdtvar.h>
+
+#include <dev/ic/pl181reg.h>
+#include <dev/ic/pl181var.h>
+
+static int plmmc_fdt_match(device_t, cfdata_t, void *);
+static void plmmc_fdt_attach(device_t, device_t, void *);
+
+static const char * const compatible[] = {
+ "arm,pl180",
+ "arm,pl181",
+ NULL
+};
+
+CFATTACH_DECL_NEW(plmmc_fdt, sizeof(struct plmmc_softc),
+ plmmc_fdt_match, plmmc_fdt_attach, NULL, NULL);
+
+static int
+plmmc_fdt_match(device_t parent, cfdata_t cf, void *aux)
+{
+ struct fdt_attach_args * const faa = aux;
+
+ return of_compatible(faa->faa_phandle, compatible) >= 0;
+}
+
+static void
+plmmc_fdt_attach(device_t parent, device_t self, void *aux)
+{
+ struct plmmc_softc * const sc = device_private(self);
+ struct fdt_attach_args * const faa = aux;
+ const int phandle = faa->faa_phandle;
+ struct clk *clk;
+ bus_addr_t addr;
+ bus_size_t size;
+ void *ih;
+
+ if (fdtbus_get_reg(phandle, 0, &addr, &size) != 0) {
+ aprint_error(": missing 'reg' property\n");
+ return;
+ }
+
+ clk = fdtbus_clock_get_index(phandle, 0);
+ if (clk == NULL) {
+ aprint_error(": couldn't get clock\n");
+ return;
+ }
+
+ if (clk_enable(clk) != 0) {
+ aprint_error(": couldn't enable clock\n");
+ return;
+ }
+
+ sc->sc_dev = self;
+ sc->sc_clock_freq = clk_get_rate(clk);
+ of_getprop_uint32(phandle, "max-frequency", &sc->sc_max_freq);
+ sc->sc_bst = faa->faa_bst;
+ if (bus_space_map(faa->faa_bst, addr, size, 0, &sc->sc_bsh)) {
+ aprint_error(": couldn't map device\n");
+ return;
+ }
+
+ aprint_naive("\n");
+ aprint_normal("\n");
+
+ ih = fdtbus_intr_establish(phandle, 0, IPL_BIO, 0, plmmc_intr, sc);
+ if (ih == NULL) {
+ aprint_error_dev(self, "couldn't install interrupt handler\n");
+ return;
+ }
+
+ plmmc_init(sc);
+}
