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authorMarcus Glocker <mglocker@cvs.openbsd.org>2023-02-04 23:12:00 +0000
committerMarcus Glocker <mglocker@cvs.openbsd.org>2023-02-04 23:12:00 +0000
commitb9d7f65c19902ff8c3f3601c08169ba4474c429b (patch)
treec3b6b7e8cd2fba8a6c883ee75588d1925602a2e2 /sys/dev/acpi
parent0b76d1272902b5938a4abd9f2c6cc0030a6b9985 (diff)
Initial driver for Universal Flash Storage (UFS) Host Controllers.
ok kettenis@
Diffstat (limited to 'sys/dev/acpi')
-rw-r--r--sys/dev/acpi/files.acpi6
-rw-r--r--sys/dev/acpi/ufshci_acpi.c113
2 files changed, 118 insertions, 1 deletions
diff --git a/sys/dev/acpi/files.acpi b/sys/dev/acpi/files.acpi
index cf0a4e83eda..9b7bb767202 100644
--- a/sys/dev/acpi/files.acpi
+++ b/sys/dev/acpi/files.acpi
@@ -1,4 +1,4 @@
-# $OpenBSD: files.acpi,v 1.67 2022/11/06 15:36:13 patrick Exp $
+# $OpenBSD: files.acpi,v 1.68 2023/02/04 23:11:59 mglocker Exp $
#
# Config file and device description for machine-independent ACPI code.
# Included by ports that need it.
@@ -271,3 +271,7 @@ file dev/acpi/qcgpio.c qcgpio
# Qualcomm I2C controller
attach qciic at acpi with qciic_acpi
file dev/acpi/qciic.c qciic
+
+# UFS HC
+attach ufshci at acpi with ufshci_acpi
+file dev/acpi/ufshci_acpi.c ufshci_acpi
diff --git a/sys/dev/acpi/ufshci_acpi.c b/sys/dev/acpi/ufshci_acpi.c
new file mode 100644
index 00000000000..27b8b97b629
--- /dev/null
+++ b/sys/dev/acpi/ufshci_acpi.c
@@ -0,0 +1,113 @@
+/* $OpenBSD: ufshci_acpi.c,v 1.1 2023/02/04 23:11:59 mglocker Exp $ */
+/*
+ * Copyright (c) 2022 Marcus Glocker <mglocker@openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/device.h>
+
+#include <machine/bus.h>
+#include <machine/intr.h>
+
+#include <dev/acpi/acpireg.h>
+#include <dev/acpi/acpivar.h>
+#include <dev/acpi/acpidev.h>
+#include <dev/acpi/amltypes.h>
+#include <dev/acpi/dsdt.h>
+
+#include <scsi/scsi_all.h>
+#include <scsi/scsi_disk.h>
+#include <scsi/scsiconf.h>
+
+#include <dev/ic/ufshcivar.h>
+
+struct ufshci_acpi_softc {
+ struct ufshci_softc sc;
+ struct acpi_softc *sc_acpi;
+ struct aml_node *sc_node;
+ void *sc_ih;
+};
+
+int ufshci_acpi_match(struct device *, void *, void *);
+void ufshci_acpi_attach(struct device *, struct device *, void *);
+
+const struct cfattach ufshci_acpi_ca = {
+ sizeof(struct ufshci_acpi_softc), ufshci_acpi_match, ufshci_acpi_attach
+};
+
+const char *ufshci_hids[] = {
+ "QCOM24A5",
+ NULL
+};
+
+int
+ufshci_acpi_match(struct device *parent, void *match, void *aux)
+{
+ struct acpi_attach_args *aaa = aux;
+ struct cfdata *cf = match;
+
+ if (aaa->aaa_naddr < 1)
+ return 0;
+
+ return acpi_matchhids(aaa, ufshci_hids, cf->cf_driver->cd_name);
+}
+
+void
+ufshci_acpi_attach(struct device *parent, struct device *self, void *aux)
+{
+ struct ufshci_acpi_softc *sc = (struct ufshci_acpi_softc *)self;
+ struct acpi_attach_args *aaa = aux;
+ int error;
+
+ sc->sc_acpi = (struct acpi_softc *)parent;
+ sc->sc_node = aaa->aaa_node;
+ printf(" %s", sc->sc_node->name);
+
+ if (aaa->aaa_nirq < 1) {
+ printf(": no interrupt\n");
+ return;
+ }
+
+ printf(" addr 0x%llx/0x%llx", aaa->aaa_addr[0], aaa->aaa_size[0]);
+ printf(" irq %d", aaa->aaa_irq[0]);
+
+ sc->sc.sc_iot = aaa->aaa_bst[0];
+ sc->sc.sc_ios = aaa->aaa_size[0];
+ sc->sc.sc_dmat = aaa->aaa_dmat;
+
+ if (bus_space_map(sc->sc.sc_iot, aaa->aaa_addr[0], aaa->aaa_size[0], 0,
+ &sc->sc.sc_ioh)) {
+ printf(": can't map registers\n");
+ return;
+ }
+
+ sc->sc_ih = acpi_intr_establish(aaa->aaa_irq[0], aaa->aaa_irq_flags[0],
+ IPL_BIO, ufshci_intr, sc, sc->sc.sc_dev.dv_xname);
+ if (sc->sc_ih == NULL) {
+ printf(": can't establish interrupt\n");
+ return;
+ }
+#if 0
+ /* XXX: Only for testing */
+ config_mountroot(self, ufshci_attach_hook);
+#endif
+ error = ufshci_attach(&sc->sc);
+ if (error) {
+ printf("%s: attach failed, error=%d\n",
+ sc->sc.sc_dev.dv_xname, error);
+ return;
+ }
+}