/* $NetBSD: sni_emmc.c,v 1.10 2021/12/21 06:00:45 nisimura Exp $ */ /*- * Copyright (c) 2020 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Tohru Nishimura. * * 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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``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 FOUNDATION OR CONTRIBUTORS * 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. */ /* * Socionext SC2A11 SynQuacer eMMC driver */ #include __KERNEL_RCSID(0, "$NetBSD: sni_emmc.c,v 1.10 2021/12/21 06:00:45 nisimura Exp $"); #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include static int sniemmc_fdt_match(device_t, struct cfdata *, void *); static void sniemmc_fdt_attach(device_t, device_t, void *); static int sniemmc_acpi_match(device_t, struct cfdata *, void *); static void sniemmc_acpi_attach(device_t, device_t, void *); struct sniemmc_softc { struct sdhc_softc sc; bus_space_tag_t sc_iot; bus_space_handle_t sc_ioh; bus_addr_t sc_iob; bus_size_t sc_ios; void *sc_ih; struct sdhc_host *sc_hosts[1]; bus_dmamap_t sc_dmamap; bus_dma_segment_t sc_segs[1]; kcondvar_t sc_cv; int sc_phandle; }; CFATTACH_DECL_NEW(sniemmc_fdt, sizeof(struct sniemmc_softc), sniemmc_fdt_match, sniemmc_fdt_attach, NULL, NULL); CFATTACH_DECL_NEW(sniemmc_acpi, sizeof(struct sniemmc_softc), sniemmc_acpi_match, sniemmc_acpi_attach, NULL, NULL); static void sniemmc_attach_i(device_t); static const struct device_compatible_entry compat_data[] = { { .compat = "socionext,synquacer-sdhci" }, { .compat = "fujitsu,mb86s70-sdhci-3.0" }, DEVICE_COMPAT_EOL }; static const struct device_compatible_entry compatible[] = { { .compat = "SCX0002" }, DEVICE_COMPAT_EOL }; static int sniemmc_fdt_match(device_t parent, struct cfdata *match, void *aux) { struct fdt_attach_args * const faa = aux; return of_compatible_match(faa->faa_phandle, compat_data); } static void sniemmc_fdt_attach(device_t parent, device_t self, void *aux) { struct sniemmc_softc * const sc = device_private(self); struct fdt_attach_args * const faa = aux; const int phandle = faa->faa_phandle; bus_space_handle_t ioh; bus_addr_t addr; bus_size_t size; char intrstr[128]; aprint_naive("\n"); aprint_normal_dev(self, "Socionext eMMC controller\n"); if (fdtbus_get_reg(phandle, 0, &addr, &size) != 0 || bus_space_map(faa->faa_bst, addr, size, 0, &ioh) != 0) { aprint_error_dev(self, "unable to map device\n"); return; } if (!fdtbus_intr_str(phandle, 0, intrstr, sizeof(intrstr))) { aprint_error_dev(self, "failed to decode interrupt\n"); goto fail; } sc->sc_ih = fdtbus_intr_establish(phandle, 0, IPL_SDMMC, 0, sdhc_intr, &sc->sc); if (sc->sc_ih == NULL) { aprint_error_dev(self, "couldn't establish interrupt on %s\n", intrstr); goto fail; } aprint_normal_dev(self, "interrupting on %s\n", intrstr); sc->sc.sc_dev = self; sc->sc.sc_dmat = faa->faa_dmat; sc->sc.sc_host = sc->sc_hosts; sc->sc_iot = faa->faa_bst; sc->sc_ioh = ioh; sc->sc_iob = addr; sc->sc_ios = size; sc->sc_phandle = phandle; config_defer(self, sniemmc_attach_i); return; fail: bus_space_unmap(sc->sc_iot, sc->sc_ioh, sc->sc_ios); return; } static int sniemmc_acpi_match(device_t parent, struct cfdata *match, void *aux) { struct acpi_attach_args *aa = aux; return acpi_compatible_match(aa, compatible); } static void sniemmc_acpi_attach(device_t parent, device_t self, void *aux) { struct sniemmc_softc * const sc = device_private(self); struct acpi_attach_args *aa = aux; ACPI_HANDLE handle = aa->aa_node->ad_handle; bus_space_handle_t ioh; struct acpi_resources res; struct acpi_mem *mem; struct acpi_irq *irq; ACPI_STATUS rv; aprint_naive("\n"); aprint_normal(": Socionext eMMC controller\n"); rv = acpi_resource_parse(self, aa->aa_node->ad_handle, "_CRS", &res, &acpi_resource_parse_ops_default); if (ACPI_FAILURE(rv)) return; mem = acpi_res_mem(&res, 0); irq = acpi_res_irq(&res, 0); if (mem == NULL || irq == NULL || mem->ar_length == 0) { aprint_error_dev(self, "incomplete resources\n"); return; } if (bus_space_map(aa->aa_memt, mem->ar_base, mem->ar_length, 0, &ioh)) { aprint_error_dev(self, "couldn't map registers\n"); return; } sc->sc_ih = acpi_intr_establish(self, (uint64_t)handle, IPL_BIO, false, sdhc_intr, &sc->sc, device_xname(self)); if (sc->sc_ih == NULL) { aprint_error_dev(self, "couldn't establish interrupt\n"); goto fail; } sc->sc.sc_dev = self; sc->sc.sc_dmat = aa->aa_dmat; sc->sc.sc_host = sc->sc_hosts; sc->sc_iot = aa->aa_memt; sc->sc_ioh = ioh; sc->sc_ios = mem->ar_length; sc->sc_phandle = 0; config_defer(self, sniemmc_attach_i); acpi_resource_cleanup(&res); return; fail: bus_space_unmap(sc->sc_iot, sc->sc_ioh, sc->sc_ios); acpi_resource_cleanup(&res); return; } static void sniemmc_attach_i(device_t self) { struct sniemmc_softc * const sc = device_private(self); int error; sc->sc.sc_flags = 0; sc->sc.sc_flags |= SDHC_FLAG_32BIT_ACCESS; sc->sc.sc_clkbase = 50000; /* Default to 50MHz */ aprint_normal_dev(sc->sc.sc_dev, "doing sdhc_host() ...\n"); #if 0 error = sdhc_host_found(&sc->sc, sc->sc_iot, sc->sc_ioh, sc->sc_ios); #endif error = 0; if (error) { aprint_error_dev(self, "couldn't initialize host, error=%d\n", error); goto fail; } return; fail: if (sc->sc_phandle) fdtbus_intr_disestablish(sc->sc_phandle, sc->sc_ih); else acpi_intr_disestablish(sc->sc_ih); sc->sc_ih = NULL; bus_space_unmap(sc->sc_iot, sc->sc_ioh, sc->sc_ios); return; }