Add ufshci(4) at fdt support.

This lets me boot the Samsung Galaxy Book4 Edge in DT mode with ufshci(4),
based on a WIP DTB file.

ok kettenis@

5 files changed, 101 insertions, 5 deletions

diff --git a/share/man/man4/ufshci.4 b/share/man/man4/ufshci.4
index 969cb4f725b..4b1cf54c490 100644
--- a/share/man/man4/ufshci.4
+++ b/share/man/man4/ufshci.4
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: ufshci.4,v 1.2 2024/04/09 14:58:41 mglocker Exp $
+.\"	$OpenBSD: ufshci.4,v 1.3 2024/07/31 10:07:33 mglocker Exp $
 .\"
 .\" Copyright (c) 2023 Marcus Glocker <mglocker@openbsd.org>
 .\"
@@ -15,7 +15,7 @@
 .\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 .\"
 .\"
-.Dd $Mdocdate: April 9 2024 $
+.Dd $Mdocdate: July 31 2024 $
 .Dt UFSHCI 4
 .Os
 .Sh NAME
@@ -23,6 +23,7 @@
 .Nd Universal Flash Storage Host Controller Interface
 .Sh SYNOPSIS
 .Cd "ufshci* at acpi?"
+.Cd "ufshci* at fdt?"
 .Cd "ufshci* at pci?"
 .Sh DESCRIPTION
 The
diff --git a/sys/arch/arm64/conf/GENERIC b/sys/arch/arm64/conf/GENERIC
index e2c746bdcb3..f6bb7ef92e1 100644
--- a/sys/arch/arm64/conf/GENERIC
+++ b/sys/arch/arm64/conf/GENERIC
@@ -1,4 +1,4 @@
-# $OpenBSD: GENERIC,v 1.287 2024/07/30 19:47:05 mglocker Exp $
+# $OpenBSD: GENERIC,v 1.288 2024/07/31 10:07:33 mglocker Exp $
 #
 # GENERIC machine description file
 #
@@ -96,6 +96,7 @@ smmu*		at fdt?
 xhci*		at fdt?
 ccp*		at fdt?		# AMD Cryptographic Co-processor
 ipmi*		at fdt?
+ufshci*		at fdt?
 
 # NS16550 compatible serial ports
 com*		at fdt?
diff --git a/sys/arch/arm64/conf/RAMDISK b/sys/arch/arm64/conf/RAMDISK
index 6cb8d2d7389..344acd0f605 100644
--- a/sys/arch/arm64/conf/RAMDISK
+++ b/sys/arch/arm64/conf/RAMDISK
@@ -1,4 +1,4 @@
-# $OpenBSD: RAMDISK,v 1.217 2024/07/30 19:47:05 mglocker Exp $
+# $OpenBSD: RAMDISK,v 1.218 2024/07/31 10:07:33 mglocker Exp $
 
 machine		arm64
 maxusers	4
@@ -83,6 +83,7 @@ bwfm*		at sdmmc?	# Broadcom FullMAC
 smmu*		at fdt?
 xhci*		at fdt?
 ccp*		at fdt?		# AMD Cryptographic Co-processor
+ufshci*		at fdt?
 
 # NS16550 compatible serial ports
 com*		at fdt?
diff --git a/sys/dev/fdt/files.fdt b/sys/dev/fdt/files.fdt
index 3a5a417f058..23d1607f46f 100644
--- a/sys/dev/fdt/files.fdt
+++ b/sys/dev/fdt/files.fdt
@@ -1,4 +1,4 @@
-#	$OpenBSD: files.fdt,v 1.202 2024/03/27 15:15:00 patrick Exp $
+#	$OpenBSD: files.fdt,v 1.203 2024/07/31 10:07:33 mglocker Exp $
 #
 # Config file and device description for machine-independent FDT code.
 # Included by ports that need it.
@@ -229,6 +229,9 @@ file	dev/fdt/sdhc_fdt.c		sdhc_fdt
 attach	xhci at fdt with xhci_fdt
 file	dev/fdt/xhci_fdt.c		xhci_fdt
 
+attach	ufshci at fdt with ufshci_fdt
+file	dev/fdt/ufshci_fdt.c		ufshci_fdt
+
 device	syscon: fdt
 attach	syscon at fdt
 file	dev/fdt/syscon.c		syscon
diff --git a/sys/dev/fdt/ufshci_fdt.c b/sys/dev/fdt/ufshci_fdt.c
new file mode 100644
index 00000000000..92ea5ca4caf
--- /dev/null
+++ b/sys/dev/fdt/ufshci_fdt.c
@@ -0,0 +1,90 @@
+/*      $OpenBSD: ufshci_fdt.c,v 1.1 2024/07/31 10:07:33 mglocker Exp $ */
+/*
+ * Copyright (c) 2024 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 <machine/fdt.h>
+
+#include <dev/ofw/openfirm.h>
+#include <dev/ofw/ofw_clock.h>
+#include <dev/ofw/ofw_misc.h>
+#include <dev/ofw/fdt.h>
+
+#include <scsi/scsi_all.h>
+#include <scsi/scsiconf.h>
+
+#include <dev/ic/ufshcivar.h>
+
+int	ufshci_fdt_match(struct device *, void *, void *);
+void	ufshci_fdt_attach(struct device *, struct device *, void *);
+
+const struct cfattach ufshci_fdt_ca = {
+	sizeof(struct ufshci_softc),
+	ufshci_fdt_match,
+	ufshci_fdt_attach
+};
+
+int
+ufshci_fdt_match(struct device *parent, void *match, void *aux)
+{
+	struct fdt_attach_args *faa = aux;
+
+	return OF_is_compatible(faa->fa_node, "jedec,ufs-2.0");
+}
+
+void
+ufshci_fdt_attach(struct device *parent, struct device *self, void *aux)
+{
+	struct ufshci_softc *sc = (struct ufshci_softc *)self;
+	struct fdt_attach_args *faa = aux;
+	void *ih;
+
+	if (faa->fa_nreg < 1)
+		return;
+
+	sc->sc_iot = faa->fa_iot;
+	sc->sc_ios = faa->fa_reg[0].size;
+	sc->sc_dmat = faa->fa_dmat;
+
+	if (bus_space_map(sc->sc_iot, faa->fa_reg[0].addr,
+	    faa->fa_reg[0].size, 0, &sc->sc_ioh)) {
+		printf(": can't map registers\n");
+		return;
+	}
+
+	ih = fdt_intr_establish(faa->fa_node, IPL_BIO,
+	    ufshci_intr, sc, sc->sc_dev.dv_xname);
+	if (ih == NULL) {
+		printf(": can't establish interrupt\n");
+		goto unmap;
+	}
+
+	clock_set_assigned(faa->fa_node);
+	clock_enable_all(faa->fa_node);
+	phy_enable(faa->fa_node, "ufsphy");
+
+	if (ufshci_attach(sc) != 0)
+		goto irq;
+
+	return;
+
+irq:
+	fdt_intr_disestablish(ih);
+unmap:
+	bus_space_unmap(sc->sc_iot, sc->sc_ioh, sc->sc_ios);
+}