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authorIngo Molnar <mingo@elte.hu>2009-04-06 09:02:57 +0200
committerIngo Molnar <mingo@elte.hu>2009-04-06 09:02:57 +0200
commitf541ae326fa120fa5c57433e4d9a133df212ce41 (patch)
treebdbd94ec72cfc601118051cb35e8617d55510177 /arch/arm/mach-mmp/include/mach/mfp.h
parente255357764f92afcafafbd4879b222b8c752065a (diff)
parent0221c81b1b8eb0cbb6b30a0ced52ead32d2b4e4c (diff)
downloadtalos-obmc-linux-f541ae326fa120fa5c57433e4d9a133df212ce41.tar.gz
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Merge branch 'linus' into perfcounters/core-v2
Merge reason: we have gathered quite a few conflicts, need to merge upstream Conflicts: arch/powerpc/kernel/Makefile arch/x86/ia32/ia32entry.S arch/x86/include/asm/hardirq.h arch/x86/include/asm/unistd_32.h arch/x86/include/asm/unistd_64.h arch/x86/kernel/cpu/common.c arch/x86/kernel/irq.c arch/x86/kernel/syscall_table_32.S arch/x86/mm/iomap_32.c include/linux/sched.h kernel/Makefile Signed-off-by: Ingo Molnar <mingo@elte.hu>
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 000000000000..277ea4cd0f9f
--- /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 */
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