Add the rt linux 4.1.3-rt3 as base

Import the rt linux 4.1.3-rt3 as OPNFV kvm base.

It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:

commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date:   Sat Jul 25 12:13:34 2015 +0200

    Prepare v4.1.3-rt3

    Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>

We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.

Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>

2 files changed, 560 insertions, 0 deletions

diff --git a/kernel/arch/arm/plat-pxa/include/plat/dma.h b/kernel/arch/arm/plat-pxa/include/plat/dma.h
new file mode 100644
index 000000000..a7b91dc06
--- /dev/null
+++ b/kernel/arch/arm/plat-pxa/include/plat/dma.h
@@ -0,0 +1,85 @@
+#ifndef __PLAT_DMA_H
+#define __PLAT_DMA_H
+
+#define DMAC_REG(x)	(*((volatile u32 *)(DMAC_REGS_VIRT + (x))))
+
+#define DCSR(n)		DMAC_REG((n) << 2)
+#define DALGN		DMAC_REG(0x00a0)  /* DMA Alignment Register */
+#define DINT		DMAC_REG(0x00f0)  /* DMA Interrupt Register */
+#define DDADR(n)	DMAC_REG(0x0200 + ((n) << 4))
+#define DSADR(n)	DMAC_REG(0x0204 + ((n) << 4))
+#define DTADR(n)	DMAC_REG(0x0208 + ((n) << 4))
+#define DCMD(n)		DMAC_REG(0x020c + ((n) << 4))
+#define DRCMR(n)	DMAC_REG((((n) < 64) ? 0x0100 : 0x1100) + \
+				 (((n) & 0x3f) << 2))
+
+#define DCSR_RUN	(1 << 31)	/* Run Bit (read / write) */
+#define DCSR_NODESC	(1 << 30)	/* No-Descriptor Fetch (read / write) */
+#define DCSR_STOPIRQEN	(1 << 29)	/* Stop Interrupt Enable (read / write) */
+#define DCSR_REQPEND	(1 << 8)	/* Request Pending (read-only) */
+#define DCSR_STOPSTATE	(1 << 3)	/* Stop State (read-only) */
+#define DCSR_ENDINTR	(1 << 2)	/* End Interrupt (read / write) */
+#define DCSR_STARTINTR	(1 << 1)	/* Start Interrupt (read / write) */
+#define DCSR_BUSERR	(1 << 0)	/* Bus Error Interrupt (read / write) */
+
+#define DCSR_EORIRQEN	(1 << 28)       /* End of Receive Interrupt Enable (R/W) */
+#define DCSR_EORJMPEN	(1 << 27)       /* Jump to next descriptor on EOR */
+#define DCSR_EORSTOPEN	(1 << 26)       /* STOP on an EOR */
+#define DCSR_SETCMPST	(1 << 25)       /* Set Descriptor Compare Status */
+#define DCSR_CLRCMPST	(1 << 24)       /* Clear Descriptor Compare Status */
+#define DCSR_CMPST	(1 << 10)       /* The Descriptor Compare Status */
+#define DCSR_EORINTR	(1 << 9)        /* The end of Receive */
+
+#define DRCMR_MAPVLD	(1 << 7)	/* Map Valid (read / write) */
+#define DRCMR_CHLNUM	0x1f		/* mask for Channel Number (read / write) */
+
+#define DDADR_DESCADDR	0xfffffff0	/* Address of next descriptor (mask) */
+#define DDADR_STOP	(1 << 0)	/* Stop (read / write) */
+
+#define DCMD_INCSRCADDR	(1 << 31)	/* Source Address Increment Setting. */
+#define DCMD_INCTRGADDR	(1 << 30)	/* Target Address Increment Setting. */
+#define DCMD_FLOWSRC	(1 << 29)	/* Flow Control by the source. */
+#define DCMD_FLOWTRG	(1 << 28)	/* Flow Control by the target. */
+#define DCMD_STARTIRQEN	(1 << 22)	/* Start Interrupt Enable */
+#define DCMD_ENDIRQEN	(1 << 21)	/* End Interrupt Enable */
+#define DCMD_ENDIAN	(1 << 18)	/* Device Endian-ness. */
+#define DCMD_BURST8	(1 << 16)	/* 8 byte burst */
+#define DCMD_BURST16	(2 << 16)	/* 16 byte burst */
+#define DCMD_BURST32	(3 << 16)	/* 32 byte burst */
+#define DCMD_WIDTH1	(1 << 14)	/* 1 byte width */
+#define DCMD_WIDTH2	(2 << 14)	/* 2 byte width (HalfWord) */
+#define DCMD_WIDTH4	(3 << 14)	/* 4 byte width (Word) */
+#define DCMD_LENGTH	0x01fff		/* length mask (max = 8K - 1) */
+
+/*
+ * Descriptor structure for PXA's DMA engine
+ * Note: this structure must always be aligned to a 16-byte boundary.
+ */
+
+typedef struct pxa_dma_desc {
+	volatile u32 ddadr;	/* Points to the next descriptor + flags */
+	volatile u32 dsadr;	/* DSADR value for the current transfer */
+	volatile u32 dtadr;	/* DTADR value for the current transfer */
+	volatile u32 dcmd;	/* DCMD value for the current transfer */
+} pxa_dma_desc;
+
+typedef enum {
+	DMA_PRIO_HIGH = 0,
+	DMA_PRIO_MEDIUM = 1,
+	DMA_PRIO_LOW = 2
+} pxa_dma_prio;
+
+/*
+ * DMA registration
+ */
+
+int __init pxa_init_dma(int irq, int num_ch);
+
+int pxa_request_dma (char *name,
+			 pxa_dma_prio prio,
+			 void (*irq_handler)(int, void *),
+			 void *data);
+
+void pxa_free_dma (int dma_ch);
+
+#endif /* __PLAT_DMA_H */
diff --git a/kernel/arch/arm/plat-pxa/include/plat/mfp.h b/kernel/arch/arm/plat-pxa/include/plat/mfp.h
new file mode 100644
index 000000000..10bc4f375
--- /dev/null
+++ b/kernel/arch/arm/plat-pxa/include/plat/mfp.h
@@ -0,0 +1,475 @@
+/*
+ * arch/arm/plat-pxa/include/plat/mfp.h
+ *
+ *   Common Multi-Function Pin Definitions
+ *
+ * Copyright (C) 2007 Marvell International Ltd.
+ *
+ * 2007-8-21: eric miao <eric.miao@marvell.com>
+ *            initial version
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ */
+
+#ifndef __ASM_PLAT_MFP_H
+#define __ASM_PLAT_MFP_H
+
+#define mfp_to_gpio(m)	((m) % 256)
+
+/* list of all the configurable MFP pins */
+enum {
+	MFP_PIN_INVALID = -1,
+
+	MFP_PIN_GPIO0 = 0,
+	MFP_PIN_GPIO1,
+	MFP_PIN_GPIO2,
+	MFP_PIN_GPIO3,
+	MFP_PIN_GPIO4,
+	MFP_PIN_GPIO5,
+	MFP_PIN_GPIO6,
+	MFP_PIN_GPIO7,
+	MFP_PIN_GPIO8,
+	MFP_PIN_GPIO9,
+	MFP_PIN_GPIO10,
+	MFP_PIN_GPIO11,
+	MFP_PIN_GPIO12,
+	MFP_PIN_GPIO13,
+	MFP_PIN_GPIO14,
+	MFP_PIN_GPIO15,
+	MFP_PIN_GPIO16,
+	MFP_PIN_GPIO17,
+	MFP_PIN_GPIO18,
+	MFP_PIN_GPIO19,
+	MFP_PIN_GPIO20,
+	MFP_PIN_GPIO21,
+	MFP_PIN_GPIO22,
+	MFP_PIN_GPIO23,
+	MFP_PIN_GPIO24,
+	MFP_PIN_GPIO25,
+	MFP_PIN_GPIO26,
+	MFP_PIN_GPIO27,
+	MFP_PIN_GPIO28,
+	MFP_PIN_GPIO29,
+	MFP_PIN_GPIO30,
+	MFP_PIN_GPIO31,
+	MFP_PIN_GPIO32,
+	MFP_PIN_GPIO33,
+	MFP_PIN_GPIO34,
+	MFP_PIN_GPIO35,
+	MFP_PIN_GPIO36,
+	MFP_PIN_GPIO37,
+	MFP_PIN_GPIO38,
+	MFP_PIN_GPIO39,
+	MFP_PIN_GPIO40,
+	MFP_PIN_GPIO41,
+	MFP_PIN_GPIO42,
+	MFP_PIN_GPIO43,
+	MFP_PIN_GPIO44,
+	MFP_PIN_GPIO45,
+	MFP_PIN_GPIO46,
+	MFP_PIN_GPIO47,
+	MFP_PIN_GPIO48,
+	MFP_PIN_GPIO49,
+	MFP_PIN_GPIO50,
+	MFP_PIN_GPIO51,
+	MFP_PIN_GPIO52,
+	MFP_PIN_GPIO53,
+	MFP_PIN_GPIO54,
+	MFP_PIN_GPIO55,
+	MFP_PIN_GPIO56,
+	MFP_PIN_GPIO57,
+	MFP_PIN_GPIO58,
+	MFP_PIN_GPIO59,
+	MFP_PIN_GPIO60,
+	MFP_PIN_GPIO61,
+	MFP_PIN_GPIO62,
+	MFP_PIN_GPIO63,
+	MFP_PIN_GPIO64,
+	MFP_PIN_GPIO65,
+	MFP_PIN_GPIO66,
+	MFP_PIN_GPIO67,
+	MFP_PIN_GPIO68,
+	MFP_PIN_GPIO69,
+	MFP_PIN_GPIO70,
+	MFP_PIN_GPIO71,
+	MFP_PIN_GPIO72,
+	MFP_PIN_GPIO73,
+	MFP_PIN_GPIO74,
+	MFP_PIN_GPIO75,
+	MFP_PIN_GPIO76,
+	MFP_PIN_GPIO77,
+	MFP_PIN_GPIO78,
+	MFP_PIN_GPIO79,
+	MFP_PIN_GPIO80,
+	MFP_PIN_GPIO81,
+	MFP_PIN_GPIO82,
+	MFP_PIN_GPIO83,
+	MFP_PIN_GPIO84,
+	MFP_PIN_GPIO85,
+	MFP_PIN_GPIO86,
+	MFP_PIN_GPIO87,
+	MFP_PIN_GPIO88,
+	MFP_PIN_GPIO89,
+	MFP_PIN_GPIO90,
+	MFP_PIN_GPIO91,
+	MFP_PIN_GPIO92,
+	MFP_PIN_GPIO93,
+	MFP_PIN_GPIO94,
+	MFP_PIN_GPIO95,
+	MFP_PIN_GPIO96,
+	MFP_PIN_GPIO97,
+	MFP_PIN_GPIO98,
+	MFP_PIN_GPIO99,
+	MFP_PIN_GPIO100,
+	MFP_PIN_GPIO101,
+	MFP_PIN_GPIO102,
+	MFP_PIN_GPIO103,
+	MFP_PIN_GPIO104,
+	MFP_PIN_GPIO105,
+	MFP_PIN_GPIO106,
+	MFP_PIN_GPIO107,
+	MFP_PIN_GPIO108,
+	MFP_PIN_GPIO109,
+	MFP_PIN_GPIO110,
+	MFP_PIN_GPIO111,
+	MFP_PIN_GPIO112,
+	MFP_PIN_GPIO113,
+	MFP_PIN_GPIO114,
+	MFP_PIN_GPIO115,
+	MFP_PIN_GPIO116,
+	MFP_PIN_GPIO117,
+	MFP_PIN_GPIO118,
+	MFP_PIN_GPIO119,
+	MFP_PIN_GPIO120,
+	MFP_PIN_GPIO121,
+	MFP_PIN_GPIO122,
+	MFP_PIN_GPIO123,
+	MFP_PIN_GPIO124,
+	MFP_PIN_GPIO125,
+	MFP_PIN_GPIO126,
+	MFP_PIN_GPIO127,
+
+	MFP_PIN_GPIO128,
+	MFP_PIN_GPIO129,
+	MFP_PIN_GPIO130,
+	MFP_PIN_GPIO131,
+	MFP_PIN_GPIO132,
+	MFP_PIN_GPIO133,
+	MFP_PIN_GPIO134,
+	MFP_PIN_GPIO135,
+	MFP_PIN_GPIO136,
+	MFP_PIN_GPIO137,
+	MFP_PIN_GPIO138,
+	MFP_PIN_GPIO139,
+	MFP_PIN_GPIO140,
+	MFP_PIN_GPIO141,
+	MFP_PIN_GPIO142,
+	MFP_PIN_GPIO143,
+	MFP_PIN_GPIO144,
+	MFP_PIN_GPIO145,
+	MFP_PIN_GPIO146,
+	MFP_PIN_GPIO147,
+	MFP_PIN_GPIO148,
+	MFP_PIN_GPIO149,
+	MFP_PIN_GPIO150,
+	MFP_PIN_GPIO151,
+	MFP_PIN_GPIO152,
+	MFP_PIN_GPIO153,
+	MFP_PIN_GPIO154,
+	MFP_PIN_GPIO155,
+	MFP_PIN_GPIO156,
+	MFP_PIN_GPIO157,
+	MFP_PIN_GPIO158,
+	MFP_PIN_GPIO159,
+	MFP_PIN_GPIO160,
+	MFP_PIN_GPIO161,
+	MFP_PIN_GPIO162,
+	MFP_PIN_GPIO163,
+	MFP_PIN_GPIO164,
+	MFP_PIN_GPIO165,
+	MFP_PIN_GPIO166,
+	MFP_PIN_GPIO167,
+	MFP_PIN_GPIO168,
+	MFP_PIN_GPIO169,
+	MFP_PIN_GPIO170,
+	MFP_PIN_GPIO171,
+	MFP_PIN_GPIO172,
+	MFP_PIN_GPIO173,
+	MFP_PIN_GPIO174,
+	MFP_PIN_GPIO175,
+	MFP_PIN_GPIO176,
+	MFP_PIN_GPIO177,
+	MFP_PIN_GPIO178,
+	MFP_PIN_GPIO179,
+	MFP_PIN_GPIO180,
+	MFP_PIN_GPIO181,
+	MFP_PIN_GPIO182,
+	MFP_PIN_GPIO183,
+	MFP_PIN_GPIO184,
+	MFP_PIN_GPIO185,
+	MFP_PIN_GPIO186,
+	MFP_PIN_GPIO187,
+	MFP_PIN_GPIO188,
+	MFP_PIN_GPIO189,
+	MFP_PIN_GPIO190,
+	MFP_PIN_GPIO191,
+
+	MFP_PIN_GPIO255 = 255,
+
+	MFP_PIN_GPIO0_2,
+	MFP_PIN_GPIO1_2,
+	MFP_PIN_GPIO2_2,
+	MFP_PIN_GPIO3_2,
+	MFP_PIN_GPIO4_2,
+	MFP_PIN_GPIO5_2,
+	MFP_PIN_GPIO6_2,
+	MFP_PIN_GPIO7_2,
+	MFP_PIN_GPIO8_2,
+	MFP_PIN_GPIO9_2,
+	MFP_PIN_GPIO10_2,
+	MFP_PIN_GPIO11_2,
+	MFP_PIN_GPIO12_2,
+	MFP_PIN_GPIO13_2,
+	MFP_PIN_GPIO14_2,
+	MFP_PIN_GPIO15_2,
+	MFP_PIN_GPIO16_2,
+	MFP_PIN_GPIO17_2,
+
+	MFP_PIN_ULPI_STP,
+	MFP_PIN_ULPI_NXT,
+	MFP_PIN_ULPI_DIR,
+
+	MFP_PIN_nXCVREN,
+	MFP_PIN_DF_CLE_nOE,
+	MFP_PIN_DF_nADV1_ALE,
+	MFP_PIN_DF_SCLK_E,
+	MFP_PIN_DF_SCLK_S,
+	MFP_PIN_nBE0,
+	MFP_PIN_nBE1,
+	MFP_PIN_DF_nADV2_ALE,
+	MFP_PIN_DF_INT_RnB,
+	MFP_PIN_DF_nCS0,
+	MFP_PIN_DF_nCS1,
+	MFP_PIN_nLUA,
+	MFP_PIN_nLLA,
+	MFP_PIN_DF_nWE,
+	MFP_PIN_DF_ALE_nWE,
+	MFP_PIN_DF_nRE_nOE,
+	MFP_PIN_DF_ADDR0,
+	MFP_PIN_DF_ADDR1,
+	MFP_PIN_DF_ADDR2,
+	MFP_PIN_DF_ADDR3,
+	MFP_PIN_DF_IO0,
+	MFP_PIN_DF_IO1,
+	MFP_PIN_DF_IO2,
+	MFP_PIN_DF_IO3,
+	MFP_PIN_DF_IO4,
+	MFP_PIN_DF_IO5,
+	MFP_PIN_DF_IO6,
+	MFP_PIN_DF_IO7,
+	MFP_PIN_DF_IO8,
+	MFP_PIN_DF_IO9,
+	MFP_PIN_DF_IO10,
+	MFP_PIN_DF_IO11,
+	MFP_PIN_DF_IO12,
+	MFP_PIN_DF_IO13,
+	MFP_PIN_DF_IO14,
+	MFP_PIN_DF_IO15,
+	MFP_PIN_DF_nCS0_SM_nCS2,
+	MFP_PIN_DF_nCS1_SM_nCS3,
+	MFP_PIN_SM_nCS0,
+	MFP_PIN_SM_nCS1,
+	MFP_PIN_DF_WEn,
+	MFP_PIN_DF_REn,
+	MFP_PIN_DF_CLE_SM_OEn,
+	MFP_PIN_DF_ALE_SM_WEn,
+	MFP_PIN_DF_RDY0,
+	MFP_PIN_DF_RDY1,
+
+	MFP_PIN_SM_SCLK,
+	MFP_PIN_SM_BE0,
+	MFP_PIN_SM_BE1,
+	MFP_PIN_SM_ADV,
+	MFP_PIN_SM_ADVMUX,
+	MFP_PIN_SM_RDY,
+
+	MFP_PIN_MMC1_DAT7,
+	MFP_PIN_MMC1_DAT6,
+	MFP_PIN_MMC1_DAT5,
+	MFP_PIN_MMC1_DAT4,
+	MFP_PIN_MMC1_DAT3,
+	MFP_PIN_MMC1_DAT2,
+	MFP_PIN_MMC1_DAT1,
+	MFP_PIN_MMC1_DAT0,
+	MFP_PIN_MMC1_CMD,
+	MFP_PIN_MMC1_CLK,
+	MFP_PIN_MMC1_CD,
+	MFP_PIN_MMC1_WP,
+
+	/* additional pins on PXA930 */
+	MFP_PIN_GSIM_UIO,
+	MFP_PIN_GSIM_UCLK,
+	MFP_PIN_GSIM_UDET,
+	MFP_PIN_GSIM_nURST,
+	MFP_PIN_PMIC_INT,
+	MFP_PIN_RDY,
+
+	/* additional pins on MMP2 */
+	MFP_PIN_TWSI1_SCL,
+	MFP_PIN_TWSI1_SDA,
+	MFP_PIN_TWSI4_SCL,
+	MFP_PIN_TWSI4_SDA,
+	MFP_PIN_CLK_REQ,
+
+	MFP_PIN_MAX,
+};
+
+/*
+ * a possible MFP configuration is represented by a 32-bit integer
+ *
+ * bit  0.. 9 - MFP Pin Number (1024 Pins Maximum)
+ * bit 10..12 - Alternate Function Selection
+ * bit 13..15 - Drive Strength
+ * bit 16..18 - Low Power Mode State
+ * bit 19..20 - Low Power Mode Edge Detection
+ * bit 21..22 - Run Mode Pull State
+ *
+ * to facilitate the definition, the following macros are provided
+ *
+ * MFP_CFG_DEFAULT - default MFP configuration value, with
+ * 		  alternate function = 0,
+ * 		  drive strength = fast 3mA (MFP_DS03X)
+ * 		  low power mode = default
+ * 		  edge detection = none
+ *
+ * MFP_CFG	- default MFPR value with alternate function
+ * MFP_CFG_DRV	- default MFPR value with alternate function and
+ * 		  pin drive strength
+ * MFP_CFG_LPM	- default MFPR value with alternate function and
+ * 		  low power mode
+ * MFP_CFG_X	- default MFPR value with alternate function,
+ * 		  pin drive strength and low power mode
+ */
+
+typedef unsigned long mfp_cfg_t;
+
+#define MFP_PIN(x)		((x) & 0x3ff)
+
+#define MFP_AF0			(0x0 << 10)
+#define MFP_AF1			(0x1 << 10)
+#define MFP_AF2			(0x2 << 10)
+#define MFP_AF3			(0x3 << 10)
+#define MFP_AF4			(0x4 << 10)
+#define MFP_AF5			(0x5 << 10)
+#define MFP_AF6			(0x6 << 10)
+#define MFP_AF7			(0x7 << 10)
+#define MFP_AF_MASK		(0x7 << 10)
+#define MFP_AF(x)		(((x) >> 10) & 0x7)
+
+#define MFP_DS01X		(0x0 << 13)
+#define MFP_DS02X		(0x1 << 13)
+#define MFP_DS03X		(0x2 << 13)
+#define MFP_DS04X		(0x3 << 13)
+#define MFP_DS06X		(0x4 << 13)
+#define MFP_DS08X		(0x5 << 13)
+#define MFP_DS10X		(0x6 << 13)
+#define MFP_DS13X		(0x7 << 13)
+#define MFP_DS_MASK		(0x7 << 13)
+#define MFP_DS(x)		(((x) >> 13) & 0x7)
+
+#define MFP_LPM_DEFAULT		(0x0 << 16)
+#define MFP_LPM_DRIVE_LOW	(0x1 << 16)
+#define MFP_LPM_DRIVE_HIGH	(0x2 << 16)
+#define MFP_LPM_PULL_LOW	(0x3 << 16)
+#define MFP_LPM_PULL_HIGH	(0x4 << 16)
+#define MFP_LPM_FLOAT		(0x5 << 16)
+#define MFP_LPM_INPUT		(0x6 << 16)
+#define MFP_LPM_STATE_MASK	(0x7 << 16)
+#define MFP_LPM_STATE(x)	(((x) >> 16) & 0x7)
+
+#define MFP_LPM_EDGE_NONE	(0x0 << 19)
+#define MFP_LPM_EDGE_RISE	(0x1 << 19)
+#define MFP_LPM_EDGE_FALL	(0x2 << 19)
+#define MFP_LPM_EDGE_BOTH	(0x3 << 19)
+#define MFP_LPM_EDGE_MASK	(0x3 << 19)
+#define MFP_LPM_EDGE(x)		(((x) >> 19) & 0x3)
+
+#define MFP_PULL_NONE		(0x0 << 21)
+#define MFP_PULL_LOW		(0x1 << 21)
+#define MFP_PULL_HIGH		(0x2 << 21)
+#define MFP_PULL_BOTH		(0x3 << 21)
+#define MFP_PULL_FLOAT		(0x4 << 21)
+#define MFP_PULL_MASK		(0x7 << 21)
+#define MFP_PULL(x)		(((x) >> 21) & 0x7)
+
+#define MFP_CFG_DEFAULT		(MFP_AF0 | MFP_DS03X | MFP_LPM_DEFAULT |\
+				 MFP_LPM_EDGE_NONE | MFP_PULL_NONE)
+
+#define MFP_CFG(pin, af)		\
+	((MFP_CFG_DEFAULT & ~MFP_AF_MASK) |\
+	 (MFP_PIN(MFP_PIN_##pin) | MFP_##af))
+
+#define MFP_CFG_DRV(pin, af, drv)	\
+	((MFP_CFG_DEFAULT & ~(MFP_AF_MASK | MFP_DS_MASK)) |\
+	 (MFP_PIN(MFP_PIN_##pin) | MFP_##af | MFP_##drv))
+
+#define MFP_CFG_LPM(pin, af, lpm)	\
+	((MFP_CFG_DEFAULT & ~(MFP_AF_MASK | MFP_LPM_STATE_MASK)) |\
+	 (MFP_PIN(MFP_PIN_##pin) | MFP_##af | MFP_LPM_##lpm))
+
+#define MFP_CFG_X(pin, af, drv, lpm)	\
+	((MFP_CFG_DEFAULT & ~(MFP_AF_MASK | MFP_DS_MASK | MFP_LPM_STATE_MASK)) |\
+	 (MFP_PIN(MFP_PIN_##pin) | MFP_##af | MFP_##drv | MFP_LPM_##lpm))
+
+#if defined(CONFIG_PXA3xx) || defined(CONFIG_ARCH_MMP)
+/*
+ * each MFP pin will have a MFPR register, since the offset of the
+ * register varies between processors, the processor specific code
+ * should initialize the pin offsets by mfp_init()
+ *
+ * mfp_init_base() - accepts a virtual base for all MFPR registers and
+ * initialize the MFP table to a default state
+ *
+ * mfp_init_addr() - accepts a table of "mfp_addr_map" structure, which
+ * represents a range of MFP pins from "start" to "end", with the offset
+ * beginning at "offset", to define a single pin, let "end" = -1.
+ *
+ * use
+ *
+ * MFP_ADDR_X() to define a range of pins
+ * MFP_ADDR()   to define a single pin
+ * MFP_ADDR_END to signal the end of pin offset definitions
+ */
+struct mfp_addr_map {
+	unsigned int	start;
+	unsigned int	end;
+	unsigned long	offset;
+};
+
+#define MFP_ADDR_X(start, end, offset) \
+	{ MFP_PIN_##start, MFP_PIN_##end, offset }
+
+#define MFP_ADDR(pin, offset) \
+	{ MFP_PIN_##pin, -1, offset }
+
+#define MFP_ADDR_END	{ MFP_PIN_INVALID, 0 }
+
+void __init mfp_init_base(void __iomem *mfpr_base);
+void __init mfp_init_addr(struct mfp_addr_map *map);
+
+/*
+ * mfp_{read, write}()	- for direct read/write access to the MFPR register
+ * mfp_config()		- for configuring a group of MFPR registers
+ * mfp_config_lpm()	- configuring all low power MFPR registers for suspend
+ * mfp_config_run()	- configuring all run time  MFPR registers after resume
+ */
+unsigned long mfp_read(int mfp);
+void mfp_write(int mfp, unsigned long mfpr_val);
+void mfp_config(unsigned long *mfp_cfgs, int num);
+void mfp_config_run(void);
+void mfp_config_lpm(void);
+#endif /* CONFIG_PXA3xx || CONFIG_ARCH_MMP */
+
+#endif /* __ASM_PLAT_MFP_H */