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authorIngo Molnar <mingo@elte.hu>2009-03-31 13:53:43 +0200
committerIngo Molnar <mingo@elte.hu>2009-03-31 13:53:43 +0200
commit7bee946358c3cb957d4aa648fc5ab3cad0b232d0 (patch)
tree693061ebde2abc35ecc846e5084630d7225aaaff /arch/arm/mach-mmp/include/mach/mfp.h
parentd820ac4c2fa881079e6b689d2098adce337558ae (diff)
parent15f7176eb1cccec0a332541285ee752b935c1c85 (diff)
Merge branch 'linus' into locking-for-linus
Conflicts: lib/Kconfig.debug
Diffstat (limited to 'arch/arm/mach-mmp/include/mach/mfp.h')
-rw-r--r--arch/arm/mach-mmp/include/mach/mfp.h37
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 */