From 293eb33fcb95e2b2bae71edf97b0ca3bdd6ba98d Mon Sep 17 00:00:00 2001 From: Michal Simek Date: Mon, 22 Apr 2013 14:56:49 +0200 Subject: mmc: Add support for Xilinx Zynq sdhci controller Add support for SD, MMC and eMMC card on Xilinx Zynq. Signed-off-by: Michal Simek Reviewed-by: Tom Rini --- drivers/mmc/zynq_sdhci.c | 40 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 drivers/mmc/zynq_sdhci.c (limited to 'drivers/mmc/zynq_sdhci.c') diff --git a/drivers/mmc/zynq_sdhci.c b/drivers/mmc/zynq_sdhci.c new file mode 100644 index 0000000000..9e37af45fc --- /dev/null +++ b/drivers/mmc/zynq_sdhci.c @@ -0,0 +1,40 @@ +/* + * (C) Copyright 2013 Inc. + * + * Xilinx Zynq SD Host Controller Interface + * + * This program is free software; you can redistribute it and/or modify it under + * the terms of the GNU General Public License version 2 as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., 59 Temple + * Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include +#include +#include +#include + +int zynq_sdhci_init(u32 regbase) +{ + struct sdhci_host *host = NULL; + + host = (struct sdhci_host *)malloc(sizeof(struct sdhci_host)); + if (!host) { + printf("zynq_sdhci_init: sdhci_host malloc fail\n"); + return 1; + } + + host->name = "zynq_sdhci"; + host->ioaddr = (void *)regbase; + host->quirks = SDHCI_QUIRK_NO_CD | SDHCI_QUIRK_WAIT_SEND_CMD; + host->version = sdhci_readw(host, SDHCI_HOST_VERSION); + + host->host_caps = MMC_MODE_HC; + + add_sdhci(host, 52000000, 52000000 >> 9); + return 0; +} -- cgit v1.2.1