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Diff for /src/sys/arch/arm/sociox/sni_emmc.c between version 1.6.4.1 and 1.6.4.2

version 1.6.4.1, 2020/03/25 23:20:38 version 1.6.4.2, 2020/04/13 08:03:37
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   /*      $NetBSD$        */
   
   /*-
    * 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 <sys/cdefs.h>
   __KERNEL_RCSID(0, "$NetBSD$");
   
   #include <sys/param.h>
   #include <sys/bus.h>
   #include <sys/intr.h>
   #include <sys/device.h>
   #include <sys/errno.h>
   #include <sys/kernel.h>
   #include <sys/systm.h>
   
   #include <machine/endian.h>
   
   #include <dev/sdmmc/sdhcreg.h>
   #include <dev/sdmmc/sdhcvar.h>
   #include <dev/sdmmc/sdmmcvar.h>
   
   #include <dev/fdt/fdtvar.h>
   #include <dev/acpi/acpireg.h>
   #include <dev/acpi/acpivar.h>
   #include <dev/acpi/acpi_intr.h>
   
   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 int
   sniemmc_fdt_match(device_t parent, struct cfdata *match, void *aux)
   {
           static const char * compatible[] = {
                   "socionext,synquacer-sdhci",
                   "fujitsu,mb86s70-sdhci-3.0",
                   NULL
           };
           struct fdt_attach_args * const faa = aux;
   
           return of_match_compatible(faa->faa_phandle, compatible);
   }
   
   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;
           prop_dictionary_t dict = device_properties(self);
           const int phandle = faa->faa_phandle;
           bus_space_handle_t ioh;
           bus_addr_t addr;
           bus_size_t size;
           char intrstr[128];
           _Bool disable;
   
           prop_dictionary_get_bool(dict, "disable", &disable);
           if (disable) {
                   aprint_naive(": disabled\n");
                   aprint_normal(": disabled\n");
                   return;
           }
           if (fdtbus_get_reg(phandle, 0, &addr, &size) != 0
               || bus_space_map(faa->faa_bst, addr, size, 0, &ioh) != 0) {
                   aprint_error(": unable to map device\n");
                   return;
           }
           if (!fdtbus_intr_str(phandle, 0, intrstr, sizeof(intrstr))) {
                   aprint_error(": 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_naive("\n");
           aprint_normal_dev(self, "Socionext eMMC controller\n");
           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_phandle = phandle;
           sc->sc_iot = faa->faa_bst;
           sc->sc_ioh = ioh;
           sc->sc_iob = addr;
           sc->sc_ios = size;
   
           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)
   {
           static const char * compatible[] = {
                   "SCX0002",
                   NULL
           };
           struct acpi_attach_args *aa = aux;
   
           if (aa->aa_node->ad_type != ACPI_TYPE_DEVICE)
                   return 0;
           return acpi_match_hid(aa->aa_node->ad_devinfo, 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;
           bus_space_handle_t ioh;
           struct acpi_resources res;
           struct acpi_mem *mem;
           struct acpi_irq *irq;
           ACPI_STATUS rv;
   
           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(": incomplete resources\n");
                   return;
           }
           if (bus_space_map(aa->aa_memt, mem->ar_base, mem->ar_length, 0,
               &ioh)) {
                   aprint_error(": couldn't map registers\n");
                   return;
           }
           sc->sc_ih = acpi_intr_establish(self,
               (uint64_t)(uintptr_t)aa->aa_node->ad_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;
           }
   
           aprint_naive("\n");
           aprint_normal_dev(self, "Socionext eMMC controller\n");
   
           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;
   
           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 intialize 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;
   }

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  Added in v.1.6.4.2

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