Author: gonzo
Date: Wed Jan 11 01:53:54 2017
New Revision: 311911
URL: https://svnweb.freebsd.org/changeset/base/311911
Log:
[sdhci] Add ACPI platform support for SDHCI driver
- Create ACPI version of SDHCI attach/detach/accessors logic. Some
platforms (e.g. BayTrail-based Minnowboard) expose SDHCI devices
via ACPI, not PCI
- Add sdchi_acpi kernel module
Reviewed by: ian, imp
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D9112
Added:
head/sys/dev/sdhci/sdhci_acpi.c (contents, props changed)
head/sys/modules/sdhci_acpi/
head/sys/modules/sdhci_acpi/Makefile (contents, props changed)
Modified:
head/sys/conf/files
head/sys/modules/Makefile
Modified: head/sys/conf/files
==============================================================================
--- head/sys/conf/files Wed Jan 11 01:18:06 2017 (r311910)
+++ head/sys/conf/files Wed Jan 11 01:53:54 2017 (r311911)
@@ -2826,6 +2826,7 @@ dev/scc/scc_dev_z8530.c optional scc
dev/sdhci/sdhci.c optional sdhci
dev/sdhci/sdhci_fdt_gpio.c optional sdhci fdt gpio
dev/sdhci/sdhci_if.m optional sdhci
+dev/sdhci/sdhci_acpi.c optional sdhci acpi
dev/sdhci/sdhci_pci.c optional sdhci pci
dev/sf/if_sf.c optional sf pci
dev/sge/if_sge.c optional sge pci
Added: head/sys/dev/sdhci/sdhci_acpi.c
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/sys/dev/sdhci/sdhci_acpi.c Wed Jan 11 01:53:54 2017
(r311911)
@@ -0,0 +1,370 @@
+/*-
+ * Copyright (c) 2017 Oleksandr Tymoshenko <go...@freebsd.org>
+ * 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>
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/bus.h>
+#include <sys/conf.h>
+#include <sys/kernel.h>
+#include <sys/lock.h>
+#include <sys/module.h>
+#include <sys/mutex.h>
+#include <sys/resource.h>
+#include <sys/rman.h>
+#include <sys/sysctl.h>
+#include <sys/taskqueue.h>
+
+#include <machine/bus.h>
+#include <machine/resource.h>
+#include <machine/stdarg.h>
+
+#include <contrib/dev/acpica/include/acpi.h>
+#include <dev/acpica/acpivar.h>
+
+#include <dev/mmc/bridge.h>
+#include <dev/mmc/mmcreg.h>
+#include <dev/mmc/mmcbrvar.h>
+
+#include "sdhci.h"
+#include "mmcbr_if.h"
+#include "sdhci_if.h"
+
+static const struct sdhci_acpi_device {
+ const char* hid;
+ int uid;
+ const char *desc;
+ u_int quirks;
+} sdhci_acpi_devices[] = {
+ { "80860F14", 1, "Intel Bay Trail eMMC 4.5 Controller",
+ SDHCI_QUIRK_ALL_SLOTS_NON_REMOVABLE |
+ SDHCI_QUIRK_INTEL_POWER_UP_RESET },
+ { "80860F16", 0, "Intel Bay Trail SD Host Controller",
+ 0 },
+ { NULL, 0, NULL, 0}
+};
+
+static char *sdhci_ids[] = {
+ "80860F14",
+ "80860F16",
+ NULL
+};
+
+struct sdhci_acpi_softc {
+ u_int quirks; /* Chip specific quirks */
+ struct resource *irq_res; /* IRQ resource */
+ void *intrhand; /* Interrupt handle */
+
+ struct sdhci_slot slot;
+ struct resource *mem_res; /* Memory resource */
+};
+
+static void sdhci_acpi_intr(void *arg);
+static int sdhci_acpi_detach(device_t dev);
+
+static uint8_t
+sdhci_acpi_read_1(device_t dev, struct sdhci_slot *slot, bus_size_t off)
+{
+ struct sdhci_acpi_softc *sc = device_get_softc(dev);
+
+ bus_barrier(sc->mem_res, 0, 0xFF,
+ BUS_SPACE_BARRIER_READ | BUS_SPACE_BARRIER_WRITE);
+ return bus_read_1(sc->mem_res, off);
+}
+
+static void
+sdhci_acpi_write_1(device_t dev, struct sdhci_slot *slot, bus_size_t off,
uint8_t val)
+{
+ struct sdhci_acpi_softc *sc = device_get_softc(dev);
+
+ bus_barrier(sc->mem_res, 0, 0xFF,
+ BUS_SPACE_BARRIER_READ | BUS_SPACE_BARRIER_WRITE);
+ bus_write_1(sc->mem_res, off, val);
+}
+
+static uint16_t
+sdhci_acpi_read_2(device_t dev, struct sdhci_slot *slot, bus_size_t off)
+{
+ struct sdhci_acpi_softc *sc = device_get_softc(dev);
+
+ bus_barrier(sc->mem_res, 0, 0xFF,
+ BUS_SPACE_BARRIER_READ | BUS_SPACE_BARRIER_WRITE);
+ return bus_read_2(sc->mem_res, off);
+}
+
+static void
+sdhci_acpi_write_2(device_t dev, struct sdhci_slot *slot, bus_size_t off,
uint16_t val)
+{
+ struct sdhci_acpi_softc *sc = device_get_softc(dev);
+
+ bus_barrier(sc->mem_res, 0, 0xFF,
+ BUS_SPACE_BARRIER_READ | BUS_SPACE_BARRIER_WRITE);
+ bus_write_2(sc->mem_res, off, val);
+}
+
+static uint32_t
+sdhci_acpi_read_4(device_t dev, struct sdhci_slot *slot, bus_size_t off)
+{
+ struct sdhci_acpi_softc *sc = device_get_softc(dev);
+
+ bus_barrier(sc->mem_res, 0, 0xFF,
+ BUS_SPACE_BARRIER_READ | BUS_SPACE_BARRIER_WRITE);
+ return bus_read_4(sc->mem_res, off);
+}
+
+static void
+sdhci_acpi_write_4(device_t dev, struct sdhci_slot *slot, bus_size_t off,
uint32_t val)
+{
+ struct sdhci_acpi_softc *sc = device_get_softc(dev);
+
+ bus_barrier(sc->mem_res, 0, 0xFF,
+ BUS_SPACE_BARRIER_READ | BUS_SPACE_BARRIER_WRITE);
+ bus_write_4(sc->mem_res, off, val);
+}
+
+static void
+sdhci_acpi_read_multi_4(device_t dev, struct sdhci_slot *slot,
+ bus_size_t off, uint32_t *data, bus_size_t count)
+{
+ struct sdhci_acpi_softc *sc = device_get_softc(dev);
+
+ bus_read_multi_stream_4(sc->mem_res, off, data, count);
+}
+
+static void
+sdhci_acpi_write_multi_4(device_t dev, struct sdhci_slot *slot,
+ bus_size_t off, uint32_t *data, bus_size_t count)
+{
+ struct sdhci_acpi_softc *sc = device_get_softc(dev);
+
+ bus_write_multi_stream_4(sc->mem_res, off, data, count);
+}
+
+static const struct sdhci_acpi_device *
+sdhci_acpi_find_device(device_t dev)
+{
+ const char *hid;
+ int i, uid;
+ ACPI_HANDLE handle;
+ ACPI_STATUS status;
+
+ hid = ACPI_ID_PROBE(device_get_parent(dev), dev, sdhci_ids);
+ if (hid == NULL)
+ return (NULL);
+
+ handle = acpi_get_handle(dev);
+ status = acpi_GetInteger(handle, "_UID", &uid);
+ if (ACPI_FAILURE(status))
+ uid = 0;
+
+ for (i = 0; sdhci_acpi_devices[i].hid != NULL; i++) {
+ if (strcmp(sdhci_acpi_devices[i].hid, hid) != 0)
+ continue;
+ if ((sdhci_acpi_devices[i].uid != 0) &&
+ (sdhci_acpi_devices[i].uid != uid))
+ continue;
+ return &sdhci_acpi_devices[i];
+ }
+
+ return (NULL);
+}
+
+static int
+sdhci_acpi_probe(device_t dev)
+{
+ const struct sdhci_acpi_device *acpi_dev;
+
+ acpi_dev = sdhci_acpi_find_device(dev);
+ if (acpi_dev == NULL)
+ return (ENXIO);
+
+ device_set_desc(dev, acpi_dev->desc);
+
+ return (BUS_PROBE_DEFAULT);
+}
+
+static int
+sdhci_acpi_attach(device_t dev)
+{
+ struct sdhci_acpi_softc *sc = device_get_softc(dev);
+ int rid, err;
+ const struct sdhci_acpi_device *acpi_dev;
+
+ acpi_dev = sdhci_acpi_find_device(dev);
+ if (acpi_dev == NULL)
+ return (ENXIO);
+
+ sc->quirks = acpi_dev->quirks;
+
+ /* Allocate IRQ. */
+ rid = 0;
+ sc->irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
+ RF_ACTIVE);
+ if (sc->irq_res == NULL) {
+ device_printf(dev, "can't allocate IRQ\n");
+ return (ENOMEM);
+ }
+
+ rid = 0;
+ sc->mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
+ &rid, RF_ACTIVE);
+ if (sc->mem_res == NULL) {
+ device_printf(dev, "can't allocate memory resource for slot\n");
+ sdhci_acpi_detach(dev);
+ return (ENOMEM);
+ }
+
+ sc->slot.quirks = sc->quirks;
+
+ err = sdhci_init_slot(dev, &sc->slot, 0);
+ if (err) {
+ device_printf(dev, "failed to init slot\n");
+ sdhci_acpi_detach(dev);
+ return (err);
+ }
+
+ /* Activate the interrupt */
+ err = bus_setup_intr(dev, sc->irq_res, INTR_TYPE_MISC | INTR_MPSAFE,
+ NULL, sdhci_acpi_intr, sc, &sc->intrhand);
+ if (err) {
+ device_printf(dev, "can't setup IRQ\n");
+ sdhci_acpi_detach(dev);
+ return (err);
+ }
+
+ /* Process cards detection. */
+ sdhci_start_slot(&sc->slot);
+
+ return (0);
+}
+
+static int
+sdhci_acpi_detach(device_t dev)
+{
+ struct sdhci_acpi_softc *sc = device_get_softc(dev);
+
+ if (sc->intrhand)
+ bus_teardown_intr(dev, sc->irq_res, sc->intrhand);
+ if (sc->irq_res)
+ bus_release_resource(dev, SYS_RES_IRQ,
+ rman_get_rid(sc->irq_res), sc->irq_res);
+
+ if (sc->mem_res) {
+ sdhci_cleanup_slot(&sc->slot);
+ bus_release_resource(dev, SYS_RES_MEMORY,
+ rman_get_rid(sc->mem_res), sc->mem_res);
+ }
+
+ return (0);
+}
+
+static int
+sdhci_acpi_shutdown(device_t dev)
+{
+
+ return (0);
+}
+
+static int
+sdhci_acpi_suspend(device_t dev)
+{
+ struct sdhci_acpi_softc *sc = device_get_softc(dev);
+ int err;
+
+ err = bus_generic_suspend(dev);
+ if (err)
+ return (err);
+ sdhci_generic_suspend(&sc->slot);
+ return (0);
+}
+
+static int
+sdhci_acpi_resume(device_t dev)
+{
+ struct sdhci_acpi_softc *sc = device_get_softc(dev);
+ int err;
+
+ sdhci_generic_resume(&sc->slot);
+ err = bus_generic_resume(dev);
+ if (err)
+ return (err);
+ return (0);
+}
+
+static void
+sdhci_acpi_intr(void *arg)
+{
+ struct sdhci_acpi_softc *sc = (struct sdhci_acpi_softc *)arg;
+
+ sdhci_generic_intr(&sc->slot);
+}
+
+static device_method_t sdhci_methods[] = {
+ /* device_if */
+ DEVMETHOD(device_probe, sdhci_acpi_probe),
+ DEVMETHOD(device_attach, sdhci_acpi_attach),
+ DEVMETHOD(device_detach, sdhci_acpi_detach),
+ DEVMETHOD(device_shutdown, sdhci_acpi_shutdown),
+ DEVMETHOD(device_suspend, sdhci_acpi_suspend),
+ DEVMETHOD(device_resume, sdhci_acpi_resume),
+
+ /* Bus interface */
+ DEVMETHOD(bus_read_ivar, sdhci_generic_read_ivar),
+ DEVMETHOD(bus_write_ivar, sdhci_generic_write_ivar),
+
+ /* mmcbr_if */
+ DEVMETHOD(mmcbr_update_ios, sdhci_generic_update_ios),
+ DEVMETHOD(mmcbr_request, sdhci_generic_request),
+ DEVMETHOD(mmcbr_get_ro, sdhci_generic_get_ro),
+ DEVMETHOD(mmcbr_acquire_host, sdhci_generic_acquire_host),
+ DEVMETHOD(mmcbr_release_host, sdhci_generic_release_host),
+
+ /* SDHCI registers accessors */
+ DEVMETHOD(sdhci_read_1, sdhci_acpi_read_1),
+ DEVMETHOD(sdhci_read_2, sdhci_acpi_read_2),
+ DEVMETHOD(sdhci_read_4, sdhci_acpi_read_4),
+ DEVMETHOD(sdhci_read_multi_4, sdhci_acpi_read_multi_4),
+ DEVMETHOD(sdhci_write_1, sdhci_acpi_write_1),
+ DEVMETHOD(sdhci_write_2, sdhci_acpi_write_2),
+ DEVMETHOD(sdhci_write_4, sdhci_acpi_write_4),
+ DEVMETHOD(sdhci_write_multi_4, sdhci_acpi_write_multi_4),
+
+ DEVMETHOD_END
+};
+
+static driver_t sdhci_acpi_driver = {
+ "sdhci_acpi",
+ sdhci_methods,
+ sizeof(struct sdhci_acpi_softc),
+};
+static devclass_t sdhci_acpi_devclass;
+
+DRIVER_MODULE(sdhci_acpi, acpi, sdhci_acpi_driver, sdhci_acpi_devclass, NULL,
+ NULL);
+MODULE_DEPEND(sdhci_acpi, sdhci, 1, 1, 1);
+DRIVER_MODULE(mmc, sdhci_acpi, mmc_driver, mmc_devclass, NULL, NULL);
+MODULE_DEPEND(sdhci_acpi, mmc, 1, 1, 1);
Modified: head/sys/modules/Makefile
==============================================================================
--- head/sys/modules/Makefile Wed Jan 11 01:18:06 2017 (r311910)
+++ head/sys/modules/Makefile Wed Jan 11 01:53:54 2017 (r311911)
@@ -332,6 +332,7 @@ SUBDIR= \
scc \
${_scsi_low} \
sdhci \
+ ${_sdhci_acpi} \
sdhci_pci \
sem \
send \
@@ -665,6 +666,7 @@ _padlock_rng= padlock_rng
_rdrand_rng= rdrand_rng
.endif
_s3= s3
+_sdhci_acpi= sdhci_acpi
_tpm= tpm
_twa= twa
_vesa= vesa
Added: head/sys/modules/sdhci_acpi/Makefile
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/sys/modules/sdhci_acpi/Makefile Wed Jan 11 01:53:54 2017
(r311911)
@@ -0,0 +1,8 @@
+# $FreeBSD$
+
+.PATH: ${.CURDIR}/../../dev/sdhci
+
+KMOD= sdhci_acpi
+SRCS= sdhci_acpi.c sdhci.h sdhci_if.h device_if.h bus_if.h pci_if.h mmcbr_if.h
+
+.include <bsd.kmod.mk>
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