Module Name: src
Committed By: skrll
Date: Fri Mar 4 08:19:07 UTC 2022
Modified Files:
src/sys/dev/fdt: fdtbus.c fdtvar.h files.fdt
Added Files:
src/sys/dev/fdt: fdt_mbox.c fdt_powerdomain.c
Log Message:
Add mailbox and power-domain support.
power-domain support is very rudimentary.
To generate a diff of this commit:
cvs rdiff -u -r0 -r1.1 src/sys/dev/fdt/fdt_mbox.c \
src/sys/dev/fdt/fdt_powerdomain.c
cvs rdiff -u -r1.45 -r1.46 src/sys/dev/fdt/fdtbus.c
cvs rdiff -u -r1.76 -r1.77 src/sys/dev/fdt/fdtvar.h
cvs rdiff -u -r1.62 -r1.63 src/sys/dev/fdt/files.fdt
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/dev/fdt/fdtbus.c
diff -u src/sys/dev/fdt/fdtbus.c:1.45 src/sys/dev/fdt/fdtbus.c:1.46
--- src/sys/dev/fdt/fdtbus.c:1.45 Sat Jan 22 11:49:17 2022
+++ src/sys/dev/fdt/fdtbus.c Fri Mar 4 08:19:06 2022
@@ -1,4 +1,4 @@
-/* $NetBSD: fdtbus.c,v 1.45 2022/01/22 11:49:17 thorpej Exp $ */
+/* $NetBSD: fdtbus.c,v 1.46 2022/03/04 08:19:06 skrll Exp $ */
/*-
* Copyright (c) 2015 Jared D. McNeill <[email protected]>
@@ -27,7 +27,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: fdtbus.c,v 1.45 2022/01/22 11:49:17 thorpej Exp $");
+__KERNEL_RCSID(0, "$NetBSD: fdtbus.c,v 1.46 2022/03/04 08:19:06 skrll Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@@ -468,6 +468,8 @@ fdt_pre_attach(struct fdt_node *node)
aprint_debug_dev(node->n_bus,
"failed to set %s config on %s: %d\n",
cfgname, node->n_name, error);
+
+ fdtbus_powerdomain_enable(node->n_phandle);
}
static void
Index: src/sys/dev/fdt/fdtvar.h
diff -u src/sys/dev/fdt/fdtvar.h:1.76 src/sys/dev/fdt/fdtvar.h:1.77
--- src/sys/dev/fdt/fdtvar.h:1.76 Wed Feb 23 08:56:11 2022
+++ src/sys/dev/fdt/fdtvar.h Fri Mar 4 08:19:06 2022
@@ -1,4 +1,4 @@
-/* $NetBSD: fdtvar.h,v 1.76 2022/02/23 08:56:11 skrll Exp $ */
+/* $NetBSD: fdtvar.h,v 1.77 2022/03/04 08:19:06 skrll Exp $ */
/*-
* Copyright (c) 2015 Jared D. McNeill <[email protected]>
@@ -157,6 +157,20 @@ struct fdtbus_iommu_func {
};
+struct fdtbus_mbox_channel {
+ struct fdtbus_mbox_controller *mb_ctlr;
+ void *mb_priv;
+};
+
+struct fdtbus_mbox_controller_func {
+ void * (*mc_acquire)(device_t, const void *, size_t, void (*)(void *),
+ void *);
+ void (*mc_release)(device_t, void *);
+ int (*mc_recv)(device_t, void *, void *, size_t);
+ int (*mc_send)(device_t, void *, const void *, size_t);
+};
+
+
struct fdtbus_mmc_pwrseq;
struct fdtbus_mmc_pwrseq_func {
@@ -201,6 +215,13 @@ struct fdtbus_power_controller_func {
};
+struct fdtbus_powerdomain_controller;
+
+struct fdtbus_powerdomain_controller_func {
+ void (*pdc_enable)(device_t, const uint32_t *, bool);
+};
+
+
struct fdtbus_pwm_controller_func {
pwm_tag_t (*get_tag)(device_t, const void *, size_t);
};
@@ -306,12 +327,16 @@ int fdtbus_register_interrupt_controlle
const struct fdtbus_interrupt_controller_func *);
int fdtbus_register_iommu(device_t, int,
const struct fdtbus_iommu_func *);
+int fdtbus_register_mbox_controller(device_t, int,
+ const struct fdtbus_mbox_controller_func *);
int fdtbus_register_mmc_pwrseq(device_t, int,
const struct fdtbus_mmc_pwrseq_func *);
int fdtbus_register_pinctrl_config(device_t, int,
const struct fdtbus_pinctrl_controller_func *);
int fdtbus_register_power_controller(device_t, int,
const struct fdtbus_power_controller_func *);
+int fdtbus_register_powerdomain_controller(device_t, int,
+ const struct fdtbus_powerdomain_controller_func *);
int fdtbus_register_phy_controller(device_t, int,
const struct fdtbus_phy_controller_func *);
int fdtbus_register_pwm_controller(device_t, int,
@@ -392,6 +417,15 @@ int fdtbus_intr_parent(int);
bus_dma_tag_t fdtbus_iommu_map(int, u_int, bus_dma_tag_t);
bus_dma_tag_t fdtbus_iommu_map_pci(int, uint32_t, bus_dma_tag_t);
+struct fdtbus_mbox_channel *
+ fdtbus_mbox_get(int, const char *, void (*)(void *), void *);
+struct fdtbus_mbox_channel *
+ fdtbus_mbox_get_index(int, u_int, void (*)(void *),
+ void *);
+int fdtbus_mbox_send(struct fdtbus_mbox_channel *, const void *, size_t);
+int fdtbus_mbox_recv(struct fdtbus_mbox_channel *, void *, size_t);
+void fdtbus_mbox_put(struct fdtbus_mbox_channel *);
+
struct fdtbus_mmc_pwrseq *
fdtbus_mmc_pwrseq_get(int);
void fdtbus_mmc_pwrseq_pre_power_on(struct fdtbus_mmc_pwrseq *);
@@ -447,6 +481,11 @@ int fdtbus_todr_attach(device_t, int, t
void fdtbus_power_reset(void);
void fdtbus_power_poweroff(void);
+int fdtbus_powerdomain_enable(int);
+int fdtbus_powerdomain_enable_index(int, int);
+int fdtbus_powerdomain_disable(int);
+int fdtbus_powerdomain_disable_index(int, int);
+
struct syscon * fdtbus_syscon_acquire(int, const char *);
struct syscon * fdtbus_syscon_lookup(int);
Index: src/sys/dev/fdt/files.fdt
diff -u src/sys/dev/fdt/files.fdt:1.62 src/sys/dev/fdt/files.fdt:1.63
--- src/sys/dev/fdt/files.fdt:1.62 Sat Sep 4 12:34:39 2021
+++ src/sys/dev/fdt/files.fdt Fri Mar 4 08:19:06 2022
@@ -1,4 +1,4 @@
-# $NetBSD: files.fdt,v 1.62 2021/09/04 12:34:39 jmcneill Exp $
+# $NetBSD: files.fdt,v 1.63 2022/03/04 08:19:06 skrll Exp $
include "external/bsd/libfdt/conf/files.libfdt"
@@ -74,9 +74,11 @@ file dev/fdt/fdt_gpio.c fdt
file dev/fdt/fdt_i2c.c fdt
file dev/fdt/fdt_iommu.c fdt
file dev/fdt/fdt_intr.c fdt
+file dev/fdt/fdt_mbox.c fdt
file dev/fdt/fdt_mmc_pwrseq.c fdt
file dev/fdt/fdt_phy.c fdt
file dev/fdt/fdt_power.c fdt
+file dev/fdt/fdt_powerdomain.c fdt
file dev/fdt/fdt_pwm.c fdt
file dev/fdt/fdt_regulator.c fdt
file dev/fdt/fdt_reset.c fdt
Added files:
Index: src/sys/dev/fdt/fdt_mbox.c
diff -u /dev/null src/sys/dev/fdt/fdt_mbox.c:1.1
--- /dev/null Fri Mar 4 08:19:07 2022
+++ src/sys/dev/fdt/fdt_mbox.c Fri Mar 4 08:19:06 2022
@@ -0,0 +1,183 @@
+/* $NetBSD: fdt_mbox.c,v 1.1 2022/03/04 08:19:06 skrll Exp $ */
+
+/*-
+ * Copyright (c) 2022 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Nick Hudson
+ *
+ * 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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: fdt_mbox.c,v 1.1 2022/03/04 08:19:06 skrll Exp $");
+
+#include <sys/param.h>
+
+#include <sys/bus.h>
+#include <sys/kmem.h>
+#include <sys/queue.h>
+
+#include <libfdt.h>
+#include <dev/fdt/fdtvar.h>
+
+
+struct fdtbus_mbox_controller {
+ device_t mc_dev;
+ int mc_phandle;
+
+ int mc_cells;
+
+ const struct fdtbus_mbox_controller_func *mc_funcs;
+
+ LIST_ENTRY(fdtbus_mbox_controller) mc_next;
+};
+
+static LIST_HEAD(, fdtbus_mbox_controller) fdtbus_mbox_controllers =
+ LIST_HEAD_INITIALIZER(fdtbus_mbox_controllers);
+
+int
+fdtbus_register_mbox_controller(device_t dev, int phandle,
+ const struct fdtbus_mbox_controller_func *funcs)
+{
+ struct fdtbus_mbox_controller *mc;
+
+ uint32_t cells;
+ if (of_getprop_uint32(phandle, "#mbox-cells", &cells) != 0) {
+ aprint_debug_dev(dev, "missing #mbox-cells");
+ return EINVAL;
+ }
+
+ mc = kmem_alloc(sizeof(*mc), KM_SLEEP);
+ mc->mc_dev = dev;
+ mc->mc_phandle = phandle;
+ mc->mc_funcs = funcs;
+ mc->mc_cells = cells;
+
+ LIST_INSERT_HEAD(&fdtbus_mbox_controllers, mc, mc_next);
+
+ return 0;
+}
+
+static struct fdtbus_mbox_controller *
+fdtbus_mbox_lookup(int phandle)
+{
+ struct fdtbus_mbox_controller *mc;
+
+ LIST_FOREACH(mc, &fdtbus_mbox_controllers, mc_next) {
+ if (mc->mc_phandle == phandle)
+ return mc;
+ }
+
+ return NULL;
+}
+
+struct fdtbus_mbox_channel *
+fdtbus_mbox_get_index(int phandle, u_int index, void (*cb)(void *), void *cbarg)
+{
+ struct fdtbus_mbox_controller *mc;
+ struct fdtbus_mbox_channel *mbox = NULL;
+ void *mbox_priv = NULL;
+ uint32_t *mboxes = NULL;
+ uint32_t *p;
+ u_int n;
+ int len, resid;
+
+ len = OF_getproplen(phandle, "mboxes");
+ if (len <= 0)
+ return NULL;
+
+ mboxes = kmem_alloc(len, KM_SLEEP);
+ if (OF_getprop(phandle, "mboxes", mboxes, len) != len) {
+ kmem_free(mboxes, len);
+ return NULL;
+ }
+
+ p = mboxes;
+ for (n = 0, resid = len; resid > 0; n++) {
+ const int mc_phandle =
+ fdtbus_get_phandle_from_native(be32toh(p[0]));
+
+ mc = fdtbus_mbox_lookup(mc_phandle);
+ if (mc == NULL)
+ break;
+
+ u_int mbox_cells = mc->mc_cells;
+ if (n == index) {
+ mbox_priv = mc->mc_funcs->mc_acquire(mc->mc_dev,
+ mbox_cells > 0 ? &p[1] : NULL, mbox_cells * 4,
+ cb, cbarg);
+ if (mbox_priv) {
+ mbox = kmem_alloc(sizeof(*mbox), KM_SLEEP);
+ mbox->mb_ctlr = mc;
+ mbox->mb_priv = mbox_priv;
+ }
+ break;
+ }
+ resid -= (mbox_cells + 1) * 4;
+ p += mbox_cells + 1;
+ }
+
+ if (mboxes)
+ kmem_free(mboxes, len);
+
+ return mbox;
+}
+
+struct fdtbus_mbox_channel *
+fdtbus_mbox_get(int phandle, const char *name, void (*cb)(void *), void *cbarg)
+{
+ u_int index;
+ int err;
+
+ err = fdtbus_get_index(phandle, "mbox-names", name, &index);
+ if (err != 0)
+ return NULL;
+
+ return fdtbus_mbox_get_index(phandle, index, cb, cbarg);
+}
+
+void
+fdtbus_mbox_put(struct fdtbus_mbox_channel *mbox)
+{
+ struct fdtbus_mbox_controller *mc = mbox->mb_ctlr;
+
+ mc->mc_funcs->mc_release(mc->mc_dev, mbox->mb_priv);
+ kmem_free(mbox, sizeof(*mbox));
+}
+
+int
+fdtbus_mbox_send(struct fdtbus_mbox_channel *mbox, const void *data, size_t len)
+{
+ struct fdtbus_mbox_controller * const mc = mbox->mb_ctlr;
+
+ return mc->mc_funcs->mc_send(mc->mc_dev, mbox->mb_priv, data, len);
+}
+
+int
+fdtbus_mbox_recv(struct fdtbus_mbox_channel *mbox, void *data, size_t len)
+{
+ struct fdtbus_mbox_controller * const mc = mbox->mb_ctlr;
+
+ return mc->mc_funcs->mc_recv(mc->mc_dev, mbox->mb_priv, data, len);
+}
Index: src/sys/dev/fdt/fdt_powerdomain.c
diff -u /dev/null src/sys/dev/fdt/fdt_powerdomain.c:1.1
--- /dev/null Fri Mar 4 08:19:07 2022
+++ src/sys/dev/fdt/fdt_powerdomain.c Fri Mar 4 08:19:06 2022
@@ -0,0 +1,148 @@
+/* $NetBSD: fdt_powerdomain.c,v 1.1 2022/03/04 08:19:06 skrll Exp $ */
+
+/*-
+ * Copyright (c) 2022 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Nick Hudson
+ *
+ * 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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: fdt_powerdomain.c,v 1.1 2022/03/04 08:19:06 skrll Exp $");
+
+#include <sys/param.h>
+
+#include <sys/bus.h>
+#include <sys/kmem.h>
+#include <sys/queue.h>
+
+#include <libfdt.h>
+#include <dev/fdt/fdtvar.h>
+
+
+struct fdtbus_powerdomain_controller {
+ device_t pdc_dev;
+ int pdc_phandle;
+
+ void *pdc_cookie;
+
+ int pdc_cells;
+
+ const struct fdtbus_powerdomain_controller_func *pdc_funcs;
+
+ LIST_ENTRY(fdtbus_powerdomain_controller) pdc_next;
+};
+
+static LIST_HEAD(, fdtbus_powerdomain_controller) fdtbus_powerdomain_controllers =
+ LIST_HEAD_INITIALIZER(fdtbus_powerdomain_controllers);
+
+int
+fdtbus_register_powerdomain_controller(device_t dev, int phandle,
+ const struct fdtbus_powerdomain_controller_func *funcs)
+{
+ struct fdtbus_powerdomain_controller *pdc;
+
+ uint32_t cells;
+ if (of_getprop_uint32(phandle, "#power-domain-cells", &cells) != 0) {
+ aprint_debug_dev(dev, "missing #power-domain-cells");
+ return EINVAL;
+ }
+
+ pdc = kmem_alloc(sizeof(*pdc), KM_SLEEP);
+ pdc->pdc_dev = dev;
+ pdc->pdc_phandle = phandle;
+ pdc->pdc_funcs = funcs;
+ pdc->pdc_cells = cells;
+
+ LIST_INSERT_HEAD(&fdtbus_powerdomain_controllers, pdc, pdc_next);
+
+ return 0;
+}
+
+static struct fdtbus_powerdomain_controller *
+fdtbus_powerdomain_lookup(int phandle)
+{
+ struct fdtbus_powerdomain_controller *pdc;
+
+ LIST_FOREACH(pdc, &fdtbus_powerdomain_controllers, pdc_next) {
+ if (pdc->pdc_phandle == phandle)
+ return pdc;
+ }
+
+ return NULL;
+}
+
+static int
+fdtbus_powerdomain_enable_internal(int phandle, int index, bool enable)
+{
+ int len;
+ const uint32_t *pds = fdtbus_get_prop(phandle, "power-domains", &len);
+
+ if (pds == NULL)
+ return EINVAL;
+
+ for (const uint32_t *pd = pds; pd < pds + len; index--) {
+ uint32_t pd_node =
+ fdtbus_get_phandle_from_native(be32toh(pd[0]));
+ struct fdtbus_powerdomain_controller *pdc =
+ fdtbus_powerdomain_lookup(pd_node);
+
+ if (pdc == NULL)
+ return ENXIO;
+
+ if (index < 0 || index == 0)
+ pdc->pdc_funcs->pdc_enable(pdc->pdc_dev, pd, enable);
+ if (index == 0)
+ break;
+
+ pd += pdc->pdc_cells + 1;
+ }
+
+ return 0;
+}
+
+int
+fdtbus_powerdomain_enable_index(int phandle, int index)
+{
+ return fdtbus_powerdomain_enable_internal(phandle, index, true);
+}
+
+int
+fdtbus_powerdomain_disable_index(int phandle, int index)
+{
+ return fdtbus_powerdomain_enable_internal(phandle, index, false);
+}
+
+int
+fdtbus_powerdomain_enable(int node)
+{
+ return fdtbus_powerdomain_enable_index(node, -1);
+}
+
+int
+fdtbus_powerdomain_disable(int node)
+{
+ return fdtbus_powerdomain_disable_index(node, -1);
+}
