git: adbce5ff747b - main - sdhci_xenon: add ACPI support

[Marcin Wojtas]

The branch main has been updated by mw:

URL: https://cgit.FreeBSD.org/src/commit/?id=adbce5ff747b6372b6cda915d06fe52b4a67b4d8

commit adbce5ff747b6372b6cda915d06fe52b4a67b4d8
Author:     Bartlomiej Grzesik <bag at semihalf.com>
AuthorDate: 2021-07-21 14:36:11 +0000
Commit:     Marcin Wojtas <mw at FreeBSD.org>
CommitDate: 2021-09-29 14:19:28 +0000

    sdhci_xenon: add ACPI support
    
    Add support for ACPI device probing for SDHCI controller found on Marvell chips.
    
    Reviewed by: mw
    Sponsored by: Semihalf
    Differential revision: https://reviews.freebsd.org/D31600
---
 sys/conf/files.arm64             |   1 +
 sys/dev/sdhci/sdhci_xenon_acpi.c | 140 +++++++++++++++++++++++++++++++++++++++
 2 files changed, 141 insertions(+)

diff --git a/sys/conf/files.arm64 b/sys/conf/files.arm64
index 0d33e315db65..9dd071b97e37 100644
--- a/sys/conf/files.arm64
+++ b/sys/conf/files.arm64
@@ -275,6 +275,7 @@ dev/psci/smccc.c				standard
 dev/safexcel/safexcel.c				optional safexcel fdt
 
 dev/sdhci/sdhci_xenon.c				optional sdhci_xenon sdhci
+dev/sdhci/sdhci_xenon_acpi.c			optional sdhci_xenon sdhci acpi
 dev/sdhci/sdhci_xenon_fdt.c			optional sdhci_xenon sdhci fdt
 
 dev/uart/uart_cpu_arm64.c			optional uart
diff --git a/sys/dev/sdhci/sdhci_xenon_acpi.c b/sys/dev/sdhci/sdhci_xenon_acpi.c
new file mode 100644
index 000000000000..1bd4c03c67e4
--- /dev/null
+++ b/sys/dev/sdhci/sdhci_xenon_acpi.c
@@ -0,0 +1,140 @@
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
+ * Copyright (c) 2021 Semihalf
+ *
+ * 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/bus.h>
+#include <sys/kernel.h>
+#include <sys/module.h>
+#include <sys/taskqueue.h>
+
+#include <dev/mmc/bridge.h>
+#include <dev/mmc/mmcbrvar.h>
+#include <dev/mmc/mmcreg.h>
+
+#include <dev/mmc/mmc_helpers.h>
+
+#include <contrib/dev/acpica/include/acpi.h>
+#include <contrib/dev/acpica/include/accommon.h>
+#include <dev/acpica/acpivar.h>
+
+#ifdef EXT_RESOURCES
+#include <dev/extres/regulator/regulator.h>
+#endif
+
+#include <dev/sdhci/sdhci.h>
+#include <dev/sdhci/sdhci_xenon.h>
+
+#include "mmcbr_if.h"
+#include "sdhci_if.h"
+
+#include "opt_mmccam.h"
+#include "opt_soc.h"
+
+static char *sdhci_xenon_hids[] = {
+	"MRVL0002",
+	"MRVL0003",
+	"MRVL0004",
+	NULL
+};
+
+static int
+sdhci_xenon_acpi_probe(device_t dev)
+{
+	device_t bus;
+	int err;
+
+	bus = device_get_parent(dev);
+
+	err = ACPI_ID_PROBE(bus, dev, sdhci_xenon_hids, NULL);
+	if (err <= 0) {
+		device_set_desc(dev, "Armada Xenon SDHCI controller");
+		return (err);
+	}
+
+	return (ENXIO);
+}
+
+static int
+sdhci_xenon_acpi_attach(device_t dev)
+{
+	struct sdhci_xenon_softc *sc;
+	struct sdhci_slot *slot;
+	struct mmc_helper mmc_helper;
+
+	sc = device_get_softc(dev);
+	memset(&mmc_helper, 0, sizeof(mmc_helper));
+
+	slot = malloc(sizeof(*slot), M_DEVBUF, M_ZERO | M_WAITOK);
+	if (!slot)
+		return (ENOMEM);
+
+	/*
+	 * Don't use regularators.
+	 * In ACPI mode the firmware takes care of them for us
+	 */
+	sc->skip_regulators = true;
+	sc->slot = slot;
+
+	if (mmc_parse(dev, &mmc_helper, &slot->host) != 0)
+		return (ENXIO);
+
+	if (mmc_helper.props & MMC_PROP_NON_REMOVABLE) {
+		slot->opt |= SDHCI_NON_REMOVABLE;
+		if (bootverbose)
+			device_printf(dev, "Non-removable media\n");
+	}
+
+	sc->wp_inverted = mmc_helper.props & MMC_PROP_WP_INVERTED;
+
+	return (sdhci_xenon_attach(dev));
+}
+
+static device_method_t sdhci_xenon_acpi_methods[] = {
+	/* device_if */
+	DEVMETHOD(device_probe,		sdhci_xenon_acpi_probe),
+	DEVMETHOD(device_attach,	sdhci_xenon_acpi_attach),
+	DEVMETHOD(device_detach,	sdhci_xenon_detach),
+
+	DEVMETHOD(sdhci_get_card_present,	sdhci_generic_get_card_present),
+
+	DEVMETHOD_END
+};
+
+DEFINE_CLASS_1(sdhci_xenon, sdhci_xenon_acpi_driver, sdhci_xenon_acpi_methods,
+	sizeof(struct sdhci_xenon_softc), sdhci_xenon_driver);
+
+static devclass_t sdhci_xenon_acpi_devclass;
+
+DRIVER_MODULE(sdhci_xenon, acpi, sdhci_xenon_acpi_driver,
+	sdhci_xenon_acpi_devclass, NULL, NULL);
+
+#ifndef MMCCAM
+MMC_DECLARE_BRIDGE(sdhci_xenon_acpi);
+#endif