Merge branch 'devel' of git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6 into devel

1 files changed, 37 insertions, 0 deletions

diff --git a/arch/arm/mach-mmp/include/mach/mfp.h b/arch/arm/mach-mmp/include/mach/mfp.h
new file mode 100644
index 00000000000..277ea4cd0f9
--- /dev/null
+++ b/arch/arm/mach-mmp/include/mach/mfp.h
@@ -0,0 +1,37 @@
+#ifndef __ASM_MACH_MFP_H
+#define __ASM_MACH_MFP_H
+
+#include <plat/mfp.h>
+
+/*
+ * NOTE: the MFPR register bit definitions on PXA168 processor lines are a
+ * bit different from those on PXA3xx.  Bit [7:10] are now reserved, which
+ * were SLEEP_OE_N, SLEEP_DATA, SLEEP_SEL and the LSB of DRIVE bits.
+ *
+ * To cope with this difference and re-use the pxa3xx mfp code as much as
+ * possible, we make the following compromise:
+ *
+ * 1. SLEEP_OE_N will always be programmed to '1' (by MFP_LPM_FLOAT)
+ * 2. DRIVE strength definitions redefined to include the reserved bit10
+ * 3. Override MFP_CFG() and MFP_CFG_DRV()
+ * 4. Drop the use of MFP_CFG_LPM() and MFP_CFG_X()
+ */
+
+#define MFP_DRIVE_VERY_SLOW	(0x0 << 13)
+#define MFP_DRIVE_SLOW		(0x2 << 13)
+#define MFP_DRIVE_MEDIUM	(0x4 << 13)
+#define MFP_DRIVE_FAST		(0x8 << 13)
+
+#undef MFP_CFG
+#undef MFP_CFG_DRV
+#undef MFP_CFG_LPM
+#undef MFP_CFG_X
+#undef MFP_CFG_DEFAULT
+
+#define MFP_CFG(pin, af)		\
+	(MFP_LPM_FLOAT | MFP_PIN(MFP_PIN_##pin) | MFP_##af | MFP_DRIVE_MEDIUM)
+
+#define MFP_CFG_DRV(pin, af, drv)	\
+	(MFP_LPM_FLOAT | MFP_PIN(MFP_PIN_##pin) | MFP_##af | MFP_DRIVE_##drv)
+
+#endif /* __ASM_MACH_MFP_H */