Add S3C2440 MCI card support

Adding MCI card support for S3C2440 CPUs. This is for reference only, as there
is currently no user in the barebox tree. Maybe one with access to the A9M2440
development kit can check it on his/her system.
Checked here with my own S3C2440 based system which is not in the barebox tree.

Signed-off-by: Juergen Beisert <juergen@kreuzholzen.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 46 insertions, 0 deletions

diff --git a/arch/arm/mach-s3c24xx/include/mach/mci.h b/arch/arm/mach-s3c24xx/include/mach/mci.h
new file mode 100644
index 0000000000..6ba8961693
--- /dev/null
+++ b/arch/arm/mach-s3c24xx/include/mach/mci.h
@@ -0,0 +1,46 @@
+/*
+ * (C) Copyright 2010 Juergen Beisert, Pengutronix
+ *
+ * This code is partially based on u-boot code:
+ *
+ * Copyright 2008, Freescale Semiconductor, Inc
+ * Andy Fleming
+ *
+ * Based (loosely) on the Linux code
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * 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
+ */
+
+#ifndef __MACH_MMC_H_
+#define __MACH_MMC_H_
+
+struct s3c_mci_platform_data {
+	unsigned caps;	/**< supported operating modes (MMC_MODE_*) */
+	unsigned voltages; /**< supported voltage range (MMC_VDD_*) */
+	unsigned f_min;	/**< min operating frequency in Hz (0 -> no limit) */
+	unsigned f_max;	/**< max operating frequency in Hz (0 -> no limit) */
+	/* TODO */
+	/* function to modify the voltage */
+	/* function to switch the voltage */
+	/* function to detect the presence of a SD card in the socket */
+	unsigned gpio_detect;
+	unsigned detect_invert;
+};
+
+#endif /* __MACH_MMC_H_ */