drivers/mmc/zynq_sdhci.c

   1 /*
   2  * (C) Copyright 2013 Inc.
   3  *
   4  * Xilinx Zynq SD Host Controller Interface
   5  *
   6  * This program is free software; you can redistribute it and/or modify it under
   7  * the terms of the GNU General Public License version 2 as published by the
   8  * Free Software Foundation; either version 2 of the License, or (at your
   9  * option) any later version.
  10  *
  11  * You should have received a copy of the GNU General Public License along with
  12  * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
  13  * Place, Suite 330, Boston, MA  02111-1307  USA
  14  */
  15
  16 #include <common.h>
  17 #include <malloc.h>
  18 #include <sdhci.h>
  19 #include <asm/arch/sys_proto.h>
  20
  21 int zynq_sdhci_init(u32 regbase)
  22 {
  23         struct sdhci_host *host = NULL;
  24
  25         host = (struct sdhci_host *)malloc(sizeof(struct sdhci_host));
  26         if (!host) {
  27                 printf("zynq_sdhci_init: sdhci_host malloc fail\n");
  28                 return 1;
  29         }
  30
  31         host->name = "zynq_sdhci";
  32         host->ioaddr = (void *)regbase;
  33         host->quirks = SDHCI_QUIRK_NO_CD | SDHCI_QUIRK_WAIT_SEND_CMD;
  34         host->version = sdhci_readw(host, SDHCI_HOST_VERSION);
  35
  36         host->host_caps = MMC_MODE_HC;
  37
  38         add_sdhci(host, 52000000, 52000000 >> 9);
  39         return 0;
  40 }