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[src/trunk]: src/sys/dev/acpi dwcmmc: Add ACPI attach support
details: https://anonhg.NetBSD.org/src/rev/b3bcfb5fd183
branches: trunk
changeset: 359554:b3bcfb5fd183
user: jmcneill <jmcneill%NetBSD.org@localhost>
date: Sun Jan 09 15:05:16 2022 +0000
description:
dwcmmc: Add ACPI attach support
diffstat:
sys/arch/evbarm/conf/GENERIC64 | 5 +-
sys/dev/acpi/dwcmmc_acpi.c | 175 +++++++++++++++++++++++++++++++++++++++++
sys/dev/acpi/files.acpi | 6 +-
3 files changed, 183 insertions(+), 3 deletions(-)
diffs (217 lines):
diff -r 809ae830c4d0 -r b3bcfb5fd183 sys/arch/evbarm/conf/GENERIC64
--- a/sys/arch/evbarm/conf/GENERIC64 Sun Jan 09 15:03:43 2022 +0000
+++ b/sys/arch/evbarm/conf/GENERIC64 Sun Jan 09 15:05:16 2022 +0000
@@ -1,5 +1,5 @@
#
-# $NetBSD: GENERIC64,v 1.190 2022/01/03 17:19:41 jmcneill Exp $
+# $NetBSD: GENERIC64,v 1.191 2022/01/09 15:05:16 jmcneill Exp $
#
# GENERIC ARM (aarch64) kernel
#
@@ -375,7 +375,8 @@
# SDMMC
bcmsdhost* at fdt? # Broadcom BCM283x SD Host Interface
-dwcmmc* at fdt? # Designware SD/MMC
+dwcmmc* at acpi? # DesignWare SD/MMC
+dwcmmc* at fdt?
mesongxmmc* at fdt? # Amlogic Meson GX eMMC/SD/SDIO controller
mmcpwrseq* at fdt? pass 5 # Simple MMC power sequence provider
rkemmcphy* at fdt? # Rockchip eMMC PHY
diff -r 809ae830c4d0 -r b3bcfb5fd183 sys/dev/acpi/dwcmmc_acpi.c
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/dev/acpi/dwcmmc_acpi.c Sun Jan 09 15:05:16 2022 +0000
@@ -0,0 +1,175 @@
+/* $NetBSD: dwcmmc_acpi.c,v 1.1 2022/01/09 15:05:16 jmcneill Exp $ */
+
+/*-
+ * Copyright (c) 2022 Jared McNeill <jmcneill%invisible.ca@localhost>
+ * 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>
+__KERNEL_RCSID(0, "$NetBSD: dwcmmc_acpi.c,v 1.1 2022/01/09 15:05:16 jmcneill Exp $");
+
+#include <sys/param.h>
+#include <sys/bus.h>
+#include <sys/cpu.h>
+#include <sys/device.h>
+
+#include <dev/ic/dwc_mmc_var.h>
+#include <dev/ic/dwc_mmc_reg.h>
+#include <dev/sdmmc/sdmmcchip.h>
+
+#include <dev/acpi/acpireg.h>
+#include <dev/acpi/acpivar.h>
+#include <dev/acpi/acpi_intr.h>
+
+/*
+ * FIXME: Remove separate compat_data arrays once acpi_compatible_lookup
+ * grows support for DT link devices.
+ */
+static const struct device_compatible_entry rockchip_compat_data[] = {
+ { .compat = "rockchip,rk3288-dw-mshc" },
+ DEVICE_COMPAT_EOL
+};
+static const struct device_compatible_entry compat_data[] = {
+ { .compat = "snps,dw-mshc" },
+ DEVICE_COMPAT_EOL
+};
+
+static int dwcmmc_acpi_match(device_t, cfdata_t, void *);
+static void dwcmmc_acpi_attach(device_t, device_t, void *);
+
+static int dwcmmc_acpi_init_props(struct dwc_mmc_softc *, ACPI_HANDLE);
+
+CFATTACH_DECL_NEW(dwcmmc_acpi, sizeof(struct dwc_mmc_softc),
+ dwcmmc_acpi_match, dwcmmc_acpi_attach, NULL, NULL);
+
+static int
+dwcmmc_acpi_match(device_t parent, cfdata_t cf, void *aux)
+{
+ struct acpi_attach_args *aa = aux;
+ int match;
+
+ match = acpi_compatible_match(aa, rockchip_compat_data);
+ if (!match) {
+ match = acpi_compatible_match(aa, compat_data);
+ }
+
+ return match;
+}
+
+static void
+dwcmmc_acpi_attach(device_t parent, device_t self, void *aux)
+{
+ struct dwc_mmc_softc * const sc = device_private(self);
+ struct acpi_attach_args *aa = aux;
+ ACPI_HANDLE handle = aa->aa_node->ad_handle;
+ struct acpi_resources res;
+ struct acpi_mem *mem;
+ struct acpi_irq *irq;
+ ACPI_STATUS rv;
+ int error;
+ void *ih;
+
+ sc->sc_dev = self;
+
+ rv = acpi_resource_parse(sc->sc_dev, handle, "_CRS",
+ &res, &acpi_resource_parse_ops_default);
+ if (ACPI_FAILURE(rv)) {
+ return;
+ }
+
+ sc->sc_flags = DWC_MMC_F_USE_HOLD_REG | DWC_MMC_F_DMA;
+
+ if (acpi_compatible_match(aa, rockchip_compat_data)) {
+ sc->sc_ciu_div = 2;
+ sc->sc_intr_cardmask = DWC_MMC_INT_SDIO_INT(8);
+ }
+
+ mem = acpi_res_mem(&res, 0);
+ if (mem == NULL) {
+ aprint_error_dev(self, "couldn't find mem resource\n");
+ goto done;
+ }
+
+ irq = acpi_res_irq(&res, 0);
+ if (irq == NULL) {
+ aprint_error_dev(self, "couldn't find irq resource\n");
+ goto done;
+ }
+
+ sc->sc_bst = aa->aa_memt;
+ error = bus_space_map(sc->sc_bst, mem->ar_base, mem->ar_length,
+ 0, &sc->sc_bsh);
+ if (error != 0) {
+ aprint_error_dev(self, "couldn't map registers\n");
+ goto done;
+ }
+ sc->sc_dmat = aa->aa_dmat;
+
+ if (dwcmmc_acpi_init_props(sc, handle) != 0) {
+ goto done;
+ }
+
+ if (dwc_mmc_init(sc) != 0) {
+ goto done;
+ }
+
+ ih = acpi_intr_establish(self, (uint64_t)(uintptr_t)handle, IPL_NET,
+ false, dwc_mmc_intr, sc, device_xname(self));
+ if (ih == NULL) {
+ aprint_error_dev(self, "couldn't establish interrupt\n");
+ goto done;
+ }
+
+done:
+ acpi_resource_cleanup(&res);
+}
+
+static int
+dwcmmc_acpi_init_props(struct dwc_mmc_softc *sc, ACPI_HANDLE handle)
+{
+ ACPI_INTEGER ival;
+
+ /* Defaults */
+ sc->sc_fifo_depth = 0;
+ sc->sc_clock_freq = UINT_MAX;
+ sc->sc_bus_width = 4;
+
+ /* Get settings from DSD properties */
+ if (ACPI_SUCCESS(acpi_dsd_integer(handle, "fifo-depth", &ival))) {
+ sc->sc_fifo_depth = ival;
+ }
+ if (ACPI_SUCCESS(acpi_dsd_integer(handle, "max-frequency", &ival))) {
+ sc->sc_clock_freq = ival;
+ }
+ if (ACPI_SUCCESS(acpi_dsd_integer(handle, "bus-width", &ival))) {
+ sc->sc_bus_width = ival;
+ }
+
+ if (sc->sc_clock_freq == 0 || sc->sc_clock_freq == UINT_MAX) {
+ aprint_error_dev(sc->sc_dev, "clock frequency not specified\n");
+ return ENXIO;
+ }
+
+ return 0;
+}
diff -r 809ae830c4d0 -r b3bcfb5fd183 sys/dev/acpi/files.acpi
--- a/sys/dev/acpi/files.acpi Sun Jan 09 15:03:43 2022 +0000
+++ b/sys/dev/acpi/files.acpi Sun Jan 09 15:05:16 2022 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: files.acpi,v 1.122 2022/01/03 17:19:41 jmcneill Exp $
+# $NetBSD: files.acpi,v 1.123 2022/01/09 15:05:16 jmcneill Exp $
include "dev/acpi/acpica/files.acpica"
@@ -302,4 +302,8 @@
attach eqos at acpinodebus with eqos_acpi
file dev/acpi/eqos_acpi.c eqos_acpi
+# DesignWare Mobile Storage Host Controller
+attach dwcmmc at acpinodebus with dwcmmc_acpi
+file dev/acpi/dwcmmc_acpi.c dwcmmc_acpi
+
include "dev/acpi/wmi/files.wmi"
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