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authorMichal Simek <michal.simek@xilinx.com>2013-04-22 14:56:49 +0200
committerMichal Simek <michal.simek@xilinx.com>2013-04-30 11:39:27 +0200
commit293eb33fcb95e2b2bae71edf97b0ca3bdd6ba98d (patch)
tree6fa1c9a39f7d94ba26bd165d14fdae5699edf99b /drivers/mmc/zynq_sdhci.c
parentf97d7e8be96888b622309d9563da0ab3fba0534b (diff)
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mmc: Add support for Xilinx Zynq sdhci controller
Add support for SD, MMC and eMMC card on Xilinx Zynq. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Tom Rini <trini@ti.com>
Diffstat (limited to 'drivers/mmc/zynq_sdhci.c')
-rw-r--r--drivers/mmc/zynq_sdhci.c40
1 files changed, 40 insertions, 0 deletions
diff --git a/drivers/mmc/zynq_sdhci.c b/drivers/mmc/zynq_sdhci.c
new file mode 100644
index 0000000..9e37af4
--- /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 <common.h>
+#include <malloc.h>
+#include <sdhci.h>
+#include <asm/arch/sys_proto.h>
+
+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;
+}