Module Name: src Committed By: jmcneill Date: Sun Jan 9 15:05:16 UTC 2022
Modified Files: src/sys/arch/evbarm/conf: GENERIC64 src/sys/dev/acpi: files.acpi Added Files: src/sys/dev/acpi: dwcmmc_acpi.c Log Message: dwcmmc: Add ACPI attach support To generate a diff of this commit: cvs rdiff -u -r1.190 -r1.191 src/sys/arch/evbarm/conf/GENERIC64 cvs rdiff -u -r0 -r1.1 src/sys/dev/acpi/dwcmmc_acpi.c cvs rdiff -u -r1.122 -r1.123 src/sys/dev/acpi/files.acpi Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files.
Modified files: Index: src/sys/arch/evbarm/conf/GENERIC64 diff -u src/sys/arch/evbarm/conf/GENERIC64:1.190 src/sys/arch/evbarm/conf/GENERIC64:1.191 --- src/sys/arch/evbarm/conf/GENERIC64:1.190 Mon Jan 3 17:19:41 2022 +++ src/sys/arch/evbarm/conf/GENERIC64 Sun Jan 9 15:05:16 2022 @@ -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 @@ tegrartc* at fdt? # NVIDIA Tegra RTC # 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 Index: src/sys/dev/acpi/files.acpi diff -u src/sys/dev/acpi/files.acpi:1.122 src/sys/dev/acpi/files.acpi:1.123 --- src/sys/dev/acpi/files.acpi:1.122 Mon Jan 3 17:19:41 2022 +++ src/sys/dev/acpi/files.acpi Sun Jan 9 15:05:16 2022 @@ -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 @@ file dev/acpi/genet_acpi.c genet_acpi 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" Added files: Index: src/sys/dev/acpi/dwcmmc_acpi.c diff -u /dev/null src/sys/dev/acpi/dwcmmc_acpi.c:1.1 --- /dev/null Sun Jan 9 15:05:16 2022 +++ src/sys/dev/acpi/dwcmmc_acpi.c Sun Jan 9 15:05:16 2022 @@ -0,0 +1,175 @@ +/* $NetBSD: dwcmmc_acpi.c,v 1.1 2022/01/09 15:05:16 jmcneill Exp $ */ + +/*- + * Copyright (c) 2022 Jared McNeill <jmcne...@invisible.ca> + * 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; +}