pata_arasan_cf: Adding support for arasan compact flash host controller

The Arasan CompactFlash Device Controller has three basic modes of
operation: PC card ATA using I/O mode, PC card ATA using memory mode, PC card
ATA using true IDE modes.

Currently driver supports only True IDE mode.

Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>

1 files changed, 47 insertions, 0 deletions

diff --git a/include/linux/pata_arasan_cf_data.h b/include/linux/pata_arasan_cf_data.h
new file mode 100644
index 000000000000..d979fe688796
--- /dev/null
+++ b/include/linux/pata_arasan_cf_data.h
@@ -0,0 +1,47 @@
+/*
+ * include/linux/pata_arasan_cf_data.h
+ *
+ * Arasan Compact Flash host controller platform data header file
+ *
+ * Copyright (C) 2011 ST Microelectronics
+ * Viresh Kumar <viresh.kumar@st.com>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#ifndef _PATA_ARASAN_CF_DATA_H
+#define _PATA_ARASAN_CF_DATA_H
+
+#include <linux/platform_device.h>
+
+struct arasan_cf_pdata {
+        u8 cf_if_clk;
+        #define CF_IF_CLK_100M                  (0x0)
+        #define CF_IF_CLK_75M                   (0x1)
+        #define CF_IF_CLK_66M                   (0x2)
+        #define CF_IF_CLK_50M                   (0x3)
+        #define CF_IF_CLK_40M                   (0x4)
+        #define CF_IF_CLK_33M                   (0x5)
+        #define CF_IF_CLK_25M                   (0x6)
+        #define CF_IF_CLK_125M                  (0x7)
+        #define CF_IF_CLK_150M                  (0x8)
+        #define CF_IF_CLK_166M                  (0x9)
+        #define CF_IF_CLK_200M                  (0xA)
+        /*
+         * Platform specific incapabilities of CF controller is handled via
+         * quirks
+         */
+        u32 quirk;
+        #define CF_BROKEN_PIO                   (1)
+        #define CF_BROKEN_MWDMA                 (1 << 1)
+        #define CF_BROKEN_UDMA                  (1 << 2)
+};
+
+static inline void
+set_arasan_cf_pdata(struct platform_device *pdev, struct arasan_cf_pdata *data)
+{
+        pdev->dev.platform_data = data;
+}
+#endif /* _PATA_ARASAN_CF_DATA_H */