Add mailbox and power-domain support.
power-domain support is very rudimentary.
This commit is contained in:
skrll
parent
cd2e3de681
commit
f80fe7971e
|
|
@ -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);
|
||||
}
|
||||
|
|
@ -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);
|
||||
}
|
||||
|
|
@ -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 <jmcneill@invisible.ca>
|
||||
|
|
@ -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
|
||||
|
|
|
|||
|
|
@ -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 <jmcneill@invisible.ca>
|
||||
|
|
@ -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_controller(device_t, int,
|
|||
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, todr_chip_handle_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);
|
||||
|
||||
|
|
|
|||
|
|
@ -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
|
||||
|
|
|
|||
Loading…
Reference in New Issue