mmc: add new sdhci-pxa driver for Marvell SoCs

Support Marvell PXA168/PXA910/MMP2 SD Host Controller.

Signed-off-by: Zhangfei Gao <zhangfei.gao@marvell.com>
Acked-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Signed-off-by: Chris Ball <cjb@laptop.org>

arch/arm/plat-pxa/include/plat/sdhci.h

@@ -0,0 +1,32 @@
+/* linux/arch/arm/plat-pxa/include/plat/sdhci.h
+ *
+ * Copyright 2010 Marvell
+ *	Zhangfei Gao <zhangfei.gao@marvell.com>
+ *
+ * PXA Platform - SDHCI platform data definitions
+ *
+ * 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.
+ */
+
+#ifndef __PLAT_PXA_SDHCI_H
+#define __PLAT_PXA_SDHCI_H
+
+/* pxa specific flag */
+/* Require clock free running */
+#define PXA_FLAG_DISABLE_CLOCK_GATING (1<<0)
+
+/*
+ * struct pxa_sdhci_platdata() - Platform device data for PXA SDHCI
+ * @max_speed: the maximum speed supported
+ * @quirks: quirks of specific device
+ * @flags: flags for platform requirement
+ */
+struct sdhci_pxa_platdata {
+	unsigned int	max_speed;
+	unsigned int	quirks;
+	unsigned int	flags;
+};
+
+#endif /* __PLAT_PXA_SDHCI_H */