4 files changed, 1149 insertions, 0 deletions

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 83b1780a3bdc..ce5e045db305 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -693,6 +693,10 @@ config FSL_LBC
           controller.  Also contains some common code used by
           drivers for specific local bus peripherals.
 
+config FSL_IFC
+        bool
+        depends on FSL_SOC
+
 config FSL_GTM
         bool
         depends on PPC_83xx || QUICC_ENGINE || CPM2
diff --git a/arch/powerpc/include/asm/fsl_ifc.h b/arch/powerpc/include/asm/fsl_ifc.h
new file mode 100644
index 000000000000..b955012939a2
--- /dev/null
+++ b/arch/powerpc/include/asm/fsl_ifc.h
@@ -0,0 +1,834 @@
+/* Freescale Integrated Flash Controller
+ *
+ * Copyright 2011 Freescale Semiconductor, Inc
+ *
+ * Author: Dipen Dudhat <dipen.dudhat@freescale.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#ifndef __ASM_FSL_IFC_H
+#define __ASM_FSL_IFC_H
+
+#include <linux/compiler.h>
+#include <linux/types.h>
+#include <linux/io.h>
+
+#include <linux/of_platform.h>
+#include <linux/interrupt.h>
+
+#define FSL_IFC_BANK_COUNT 4
+
+/*
+ * CSPR - Chip Select Property Register
+ */
+#define CSPR_BA                         0xFFFF0000
+#define CSPR_BA_SHIFT                   16
+#define CSPR_PORT_SIZE                  0x00000180
+#define CSPR_PORT_SIZE_SHIFT            7
+/* Port Size 8 bit */
+#define CSPR_PORT_SIZE_8                0x00000080
+/* Port Size 16 bit */
+#define CSPR_PORT_SIZE_16               0x00000100
+/* Port Size 32 bit */
+#define CSPR_PORT_SIZE_32               0x00000180
+/* Write Protect */
+#define CSPR_WP                         0x00000040
+#define CSPR_WP_SHIFT                   6
+/* Machine Select */
+#define CSPR_MSEL                       0x00000006
+#define CSPR_MSEL_SHIFT                 1
+/* NOR */
+#define CSPR_MSEL_NOR                   0x00000000
+/* NAND */
+#define CSPR_MSEL_NAND                  0x00000002
+/* GPCM */
+#define CSPR_MSEL_GPCM                  0x00000004
+/* Bank Valid */
+#define CSPR_V                          0x00000001
+#define CSPR_V_SHIFT                    0
+
+/*
+ * Address Mask Register
+ */
+#define IFC_AMASK_MASK                  0xFFFF0000
+#define IFC_AMASK_SHIFT                 16
+#define IFC_AMASK(n)                    (IFC_AMASK_MASK << \
+                                        (__ilog2(n) - IFC_AMASK_SHIFT))
+
+/*
+ * Chip Select Option Register IFC_NAND Machine
+ */
+/* Enable ECC Encoder */
+#define CSOR_NAND_ECC_ENC_EN            0x80000000
+#define CSOR_NAND_ECC_MODE_MASK         0x30000000
+/* 4 bit correction per 520 Byte sector */
+#define CSOR_NAND_ECC_MODE_4            0x00000000
+/* 8 bit correction per 528 Byte sector */
+#define CSOR_NAND_ECC_MODE_8            0x10000000
+/* Enable ECC Decoder */
+#define CSOR_NAND_ECC_DEC_EN            0x04000000
+/* Row Address Length */
+#define CSOR_NAND_RAL_MASK              0x01800000
+#define CSOR_NAND_RAL_SHIFT             20
+#define CSOR_NAND_RAL_1                 0x00000000
+#define CSOR_NAND_RAL_2                 0x00800000
+#define CSOR_NAND_RAL_3                 0x01000000
+#define CSOR_NAND_RAL_4                 0x01800000
+/* Page Size 512b, 2k, 4k */
+#define CSOR_NAND_PGS_MASK              0x00180000
+#define CSOR_NAND_PGS_SHIFT             16
+#define CSOR_NAND_PGS_512               0x00000000
+#define CSOR_NAND_PGS_2K                0x00080000
+#define CSOR_NAND_PGS_4K                0x00100000
+/* Spare region Size */
+#define CSOR_NAND_SPRZ_MASK             0x0000E000
+#define CSOR_NAND_SPRZ_SHIFT            13
+#define CSOR_NAND_SPRZ_16               0x00000000
+#define CSOR_NAND_SPRZ_64               0x00002000
+#define CSOR_NAND_SPRZ_128              0x00004000
+#define CSOR_NAND_SPRZ_210              0x00006000
+#define CSOR_NAND_SPRZ_218              0x00008000
+#define CSOR_NAND_SPRZ_224              0x0000A000
+/* Pages Per Block */
+#define CSOR_NAND_PB_MASK               0x00000700
+#define CSOR_NAND_PB_SHIFT              8
+#define CSOR_NAND_PB(n)         ((__ilog2(n) - 5) << CSOR_NAND_PB_SHIFT)
+/* Time for Read Enable High to Output High Impedance */
+#define CSOR_NAND_TRHZ_MASK             0x0000001C
+#define CSOR_NAND_TRHZ_SHIFT            2
+#define CSOR_NAND_TRHZ_20               0x00000000
+#define CSOR_NAND_TRHZ_40               0x00000004
+#define CSOR_NAND_TRHZ_60               0x00000008
+#define CSOR_NAND_TRHZ_80               0x0000000C
+#define CSOR_NAND_TRHZ_100              0x00000010
+/* Buffer control disable */
+#define CSOR_NAND_BCTLD                 0x00000001
+
+/*
+ * Chip Select Option Register - NOR Flash Mode
+ */
+/* Enable Address shift Mode */
+#define CSOR_NOR_ADM_SHFT_MODE_EN       0x80000000
+/* Page Read Enable from NOR device */
+#define CSOR_NOR_PGRD_EN                0x10000000
+/* AVD Toggle Enable during Burst Program */
+#define CSOR_NOR_AVD_TGL_PGM_EN         0x01000000
+/* Address Data Multiplexing Shift */
+#define CSOR_NOR_ADM_MASK               0x0003E000
+#define CSOR_NOR_ADM_SHIFT_SHIFT        13
+#define CSOR_NOR_ADM_SHIFT(n)   ((n) << CSOR_NOR_ADM_SHIFT_SHIFT)
+/* Type of the NOR device hooked */
+#define CSOR_NOR_NOR_MODE_AYSNC_NOR     0x00000000
+#define CSOR_NOR_NOR_MODE_AVD_NOR       0x00000020
+/* Time for Read Enable High to Output High Impedance */
+#define CSOR_NOR_TRHZ_MASK              0x0000001C
+#define CSOR_NOR_TRHZ_SHIFT             2
+#define CSOR_NOR_TRHZ_20                0x00000000
+#define CSOR_NOR_TRHZ_40                0x00000004
+#define CSOR_NOR_TRHZ_60                0x00000008
+#define CSOR_NOR_TRHZ_80                0x0000000C
+#define CSOR_NOR_TRHZ_100               0x00000010
+/* Buffer control disable */
+#define CSOR_NOR_BCTLD                  0x00000001
+
+/*
+ * Chip Select Option Register - GPCM Mode
+ */
+/* GPCM Mode - Normal */
+#define CSOR_GPCM_GPMODE_NORMAL         0x00000000
+/* GPCM Mode - GenericASIC */
+#define CSOR_GPCM_GPMODE_ASIC           0x80000000
+/* Parity Mode odd/even */
+#define CSOR_GPCM_PARITY_EVEN           0x40000000
+/* Parity Checking enable/disable */
+#define CSOR_GPCM_PAR_EN                0x20000000
+/* GPCM Timeout Count */
+#define CSOR_GPCM_GPTO_MASK             0x0F000000
+#define CSOR_GPCM_GPTO_SHIFT            24
+#define CSOR_GPCM_GPTO(n)       ((__ilog2(n) - 8) << CSOR_GPCM_GPTO_SHIFT)
+/* GPCM External Access Termination mode for read access */
+#define CSOR_GPCM_RGETA_EXT             0x00080000
+/* GPCM External Access Termination mode for write access */
+#define CSOR_GPCM_WGETA_EXT             0x00040000
+/* Address Data Multiplexing Shift */
+#define CSOR_GPCM_ADM_MASK              0x0003E000
+#define CSOR_GPCM_ADM_SHIFT_SHIFT       13
+#define CSOR_GPCM_ADM_SHIFT(n)  ((n) << CSOR_GPCM_ADM_SHIFT_SHIFT)
+/* Generic ASIC Parity error indication delay */
+#define CSOR_GPCM_GAPERRD_MASK          0x00000180
+#define CSOR_GPCM_GAPERRD_SHIFT         7
+#define CSOR_GPCM_GAPERRD(n)    (((n) - 1) << CSOR_GPCM_GAPERRD_SHIFT)
+/* Time for Read Enable High to Output High Impedance */
+#define CSOR_GPCM_TRHZ_MASK             0x0000001C
+#define CSOR_GPCM_TRHZ_20               0x00000000
+#define CSOR_GPCM_TRHZ_40               0x00000004
+#define CSOR_GPCM_TRHZ_60               0x00000008
+#define CSOR_GPCM_TRHZ_80               0x0000000C
+#define CSOR_GPCM_TRHZ_100              0x00000010
+/* Buffer control disable */
+#define CSOR_GPCM_BCTLD                 0x00000001
+
+/*
+ * Ready Busy Status Register (RB_STAT)
+ */
+/* CSn is READY */
+#define IFC_RB_STAT_READY_CS0           0x80000000
+#define IFC_RB_STAT_READY_CS1           0x40000000
+#define IFC_RB_STAT_READY_CS2           0x20000000
+#define IFC_RB_STAT_READY_CS3           0x10000000
+
+/*
+ * General Control Register (GCR)
+ */
+#define IFC_GCR_MASK                    0x8000F800
+/* reset all IFC hardware */
+#define IFC_GCR_SOFT_RST_ALL            0x80000000
+/* Turnaroud Time of external buffer */
+#define IFC_GCR_TBCTL_TRN_TIME          0x0000F800
+#define IFC_GCR_TBCTL_TRN_TIME_SHIFT    11
+
+/*
+ * Common Event and Error Status Register (CM_EVTER_STAT)
+ */
+/* Chip select error */
+#define IFC_CM_EVTER_STAT_CSER          0x80000000
+
+/*
+ * Common Event and Error Enable Register (CM_EVTER_EN)
+ */
+/* Chip select error checking enable */
+#define IFC_CM_EVTER_EN_CSEREN          0x80000000
+
+/*
+ * Common Event and Error Interrupt Enable Register (CM_EVTER_INTR_EN)
+ */
+/* Chip select error interrupt enable */
+#define IFC_CM_EVTER_INTR_EN_CSERIREN   0x80000000
+
+/*
+ * Common Transfer Error Attribute Register-0 (CM_ERATTR0)
+ */
+/* transaction type of error Read/Write */
+#define IFC_CM_ERATTR0_ERTYP_READ       0x80000000
+#define IFC_CM_ERATTR0_ERAID            0x0FF00000
+#define IFC_CM_ERATTR0_ERAID_SHIFT      20
+#define IFC_CM_ERATTR0_ESRCID           0x0000FF00
+#define IFC_CM_ERATTR0_ESRCID_SHIFT     8
+
+/*
+ * Clock Control Register (CCR)
+ */
+#define IFC_CCR_MASK                    0x0F0F8800
+/* Clock division ratio */
+#define IFC_CCR_CLK_DIV_MASK            0x0F000000
+#define IFC_CCR_CLK_DIV_SHIFT           24
+#define IFC_CCR_CLK_DIV(n)              ((n-1) << IFC_CCR_CLK_DIV_SHIFT)
+/* IFC Clock Delay */
+#define IFC_CCR_CLK_DLY_MASK            0x000F0000
+#define IFC_CCR_CLK_DLY_SHIFT           16
+#define IFC_CCR_CLK_DLY(n)              ((n) << IFC_CCR_CLK_DLY_SHIFT)
+/* Invert IFC clock before sending out */
+#define IFC_CCR_INV_CLK_EN              0x00008000
+/* Fedback IFC Clock */
+#define IFC_CCR_FB_IFC_CLK_SEL          0x00000800
+
+/*
+ * Clock Status Register (CSR)
+ */
+/* Clk is stable */
+#define IFC_CSR_CLK_STAT_STABLE         0x80000000
+
+/*
+ * IFC_NAND Machine Specific Registers
+ */
+/*
+ * NAND Configuration Register (NCFGR)
+ */
+/* Auto Boot Mode */
+#define IFC_NAND_NCFGR_BOOT             0x80000000
+/* Addressing Mode-ROW0+n/COL0 */
+#define IFC_NAND_NCFGR_ADDR_MODE_RC0    0x00000000
+/* Addressing Mode-ROW0+n/COL0+n */
+#define IFC_NAND_NCFGR_ADDR_MODE_RC1    0x00400000
+/* Number of loop iterations of FIR sequences for multi page operations */
+#define IFC_NAND_NCFGR_NUM_LOOP_MASK    0x0000F000
+#define IFC_NAND_NCFGR_NUM_LOOP_SHIFT   12
+#define IFC_NAND_NCFGR_NUM_LOOP(n)      ((n) << IFC_NAND_NCFGR_NUM_LOOP_SHIFT)
+/* Number of wait cycles */
+#define IFC_NAND_NCFGR_NUM_WAIT_MASK    0x000000FF
+#define IFC_NAND_NCFGR_NUM_WAIT_SHIFT   0
+
+/*
+ * NAND Flash Command Registers (NAND_FCR0/NAND_FCR1)
+ */
+/* General purpose FCM flash command bytes CMD0-CMD7 */
+#define IFC_NAND_FCR0_CMD0              0xFF000000
+#define IFC_NAND_FCR0_CMD0_SHIFT        24
+#define IFC_NAND_FCR0_CMD1              0x00FF0000
+#define IFC_NAND_FCR0_CMD1_SHIFT        16
+#define IFC_NAND_FCR0_CMD2              0x0000FF00
+#define IFC_NAND_FCR0_CMD2_SHIFT        8
+#define IFC_NAND_FCR0_CMD3              0x000000FF
+#define IFC_NAND_FCR0_CMD3_SHIFT        0
+#define IFC_NAND_FCR1_CMD4              0xFF000000
+#define IFC_NAND_FCR1_CMD4_SHIFT        24
+#define IFC_NAND_FCR1_CMD5              0x00FF0000
+#define IFC_NAND_FCR1_CMD5_SHIFT        16
+#define IFC_NAND_FCR1_CMD6              0x0000FF00
+#define IFC_NAND_FCR1_CMD6_SHIFT        8
+#define IFC_NAND_FCR1_CMD7              0x000000FF
+#define IFC_NAND_FCR1_CMD7_SHIFT        0
+
+/*
+ * Flash ROW and COL Address Register (ROWn, COLn)
+ */
+/* Main/spare region locator */
+#define IFC_NAND_COL_MS                 0x80000000
+/* Column Address */
+#define IFC_NAND_COL_CA_MASK            0x00000FFF
+
+/*
+ * NAND Flash Byte Count Register (NAND_BC)
+ */
+/* Byte Count for read/Write */
+#define IFC_NAND_BC                     0x000001FF
+
+/*
+ * NAND Flash Instruction Registers (NAND_FIR0/NAND_FIR1/NAND_FIR2)
+ */
+/* NAND Machine specific opcodes OP0-OP14*/
+#define IFC_NAND_FIR0_OP0               0xFC000000
+#define IFC_NAND_FIR0_OP0_SHIFT         26
+#define IFC_NAND_FIR0_OP1               0x03F00000
+#define IFC_NAND_FIR0_OP1_SHIFT         20
+#define IFC_NAND_FIR0_OP2               0x000FC000
+#define IFC_NAND_FIR0_OP2_SHIFT         14
+#define IFC_NAND_FIR0_OP3               0x00003F00
+#define IFC_NAND_FIR0_OP3_SHIFT         8
+#define IFC_NAND_FIR0_OP4               0x000000FC
+#define IFC_NAND_FIR0_OP4_SHIFT         2
+#define IFC_NAND_FIR1_OP5               0xFC000000
+#define IFC_NAND_FIR1_OP5_SHIFT         26
+#define IFC_NAND_FIR1_OP6               0x03F00000
+#define IFC_NAND_FIR1_OP6_SHIFT         20
+#define IFC_NAND_FIR1_OP7               0x000FC000
+#define IFC_NAND_FIR1_OP7_SHIFT         14
+#define IFC_NAND_FIR1_OP8               0x00003F00
+#define IFC_NAND_FIR1_OP8_SHIFT         8
+#define IFC_NAND_FIR1_OP9               0x000000FC
+#define IFC_NAND_FIR1_OP9_SHIFT         2
+#define IFC_NAND_FIR2_OP10              0xFC000000
+#define IFC_NAND_FIR2_OP10_SHIFT        26
+#define IFC_NAND_FIR2_OP11              0x03F00000
+#define IFC_NAND_FIR2_OP11_SHIFT        20
+#define IFC_NAND_FIR2_OP12              0x000FC000
+#define IFC_NAND_FIR2_OP12_SHIFT        14
+#define IFC_NAND_FIR2_OP13              0x00003F00
+#define IFC_NAND_FIR2_OP13_SHIFT        8
+#define IFC_NAND_FIR2_OP14              0x000000FC
+#define IFC_NAND_FIR2_OP14_SHIFT        2
+
+/*
+ * Instruction opcodes to be programmed
+ * in FIR registers- 6bits
+ */
+enum ifc_nand_fir_opcodes {
+        IFC_FIR_OP_NOP,
+        IFC_FIR_OP_CA0,
+        IFC_FIR_OP_CA1,
+        IFC_FIR_OP_CA2,
+        IFC_FIR_OP_CA3,
+        IFC_FIR_OP_RA0,
+        IFC_FIR_OP_RA1,
+        IFC_FIR_OP_RA2,
+        IFC_FIR_OP_RA3,
+        IFC_FIR_OP_CMD0,
+        IFC_FIR_OP_CMD1,
+        IFC_FIR_OP_CMD2,
+        IFC_FIR_OP_CMD3,
+        IFC_FIR_OP_CMD4,
+        IFC_FIR_OP_CMD5,
+        IFC_FIR_OP_CMD6,
+        IFC_FIR_OP_CMD7,
+        IFC_FIR_OP_CW0,
+        IFC_FIR_OP_CW1,
+        IFC_FIR_OP_CW2,
+        IFC_FIR_OP_CW3,
+        IFC_FIR_OP_CW4,
+        IFC_FIR_OP_CW5,
+        IFC_FIR_OP_CW6,
+        IFC_FIR_OP_CW7,
+        IFC_FIR_OP_WBCD,
+        IFC_FIR_OP_RBCD,
+        IFC_FIR_OP_BTRD,
+        IFC_FIR_OP_RDSTAT,
+        IFC_FIR_OP_NWAIT,
+        IFC_FIR_OP_WFR,
+        IFC_FIR_OP_SBRD,
+        IFC_FIR_OP_UA,
+        IFC_FIR_OP_RB,
+};
+
+/*
+ * NAND Chip Select Register (NAND_CSEL)
+ */
+#define IFC_NAND_CSEL                   0x0C000000
+#define IFC_NAND_CSEL_SHIFT             26
+#define IFC_NAND_CSEL_CS0               0x00000000
+#define IFC_NAND_CSEL_CS1               0x04000000
+#define IFC_NAND_CSEL_CS2               0x08000000
+#define IFC_NAND_CSEL_CS3               0x0C000000
+
+/*
+ * NAND Operation Sequence Start (NANDSEQ_STRT)
+ */
+/* NAND Flash Operation Start */
+#define IFC_NAND_SEQ_STRT_FIR_STRT      0x80000000
+/* Automatic Erase */
+#define IFC_NAND_SEQ_STRT_AUTO_ERS      0x00800000
+/* Automatic Program */
+#define IFC_NAND_SEQ_STRT_AUTO_PGM      0x00100000
+/* Automatic Copyback */
+#define IFC_NAND_SEQ_STRT_AUTO_CPB      0x00020000
+/* Automatic Read Operation */
+#define IFC_NAND_SEQ_STRT_AUTO_RD       0x00004000
+/* Automatic Status Read */
+#define IFC_NAND_SEQ_STRT_AUTO_STAT_RD  0x00000800
+
+/*
+ * NAND Event and Error Status Register (NAND_EVTER_STAT)
+ */
+/* Operation Complete */
+#define IFC_NAND_EVTER_STAT_OPC         0x80000000
+/* Flash Timeout Error */
+#define IFC_NAND_EVTER_STAT_FTOER       0x08000000
+/* Write Protect Error */
+#define IFC_NAND_EVTER_STAT_WPER        0x04000000
+/* ECC Error */
+#define IFC_NAND_EVTER_STAT_ECCER       0x02000000
+/* RCW Load Done */
+#define IFC_NAND_EVTER_STAT_RCW_DN      0x00008000
+/* Boot Loadr Done */
+#define IFC_NAND_EVTER_STAT_BOOT_DN     0x00004000
+/* Bad Block Indicator search select */
+#define IFC_NAND_EVTER_STAT_BBI_SRCH_SE 0x00000800
+
+/*
+ * NAND Flash Page Read Completion Event Status Register
+ * (PGRDCMPL_EVT_STAT)
+ */
+#define PGRDCMPL_EVT_STAT_MASK          0xFFFF0000
+/* Small Page 0-15 Done */
+#define PGRDCMPL_EVT_STAT_SECTION_SP(n) (1 << (31 - (n)))
+/* Large Page(2K) 0-3 Done */
+#define PGRDCMPL_EVT_STAT_LP_2K(n)      (0xF << (28 - (n)*4))
+/* Large Page(4K) 0-1 Done */
+#define PGRDCMPL_EVT_STAT_LP_4K(n)      (0xFF << (24 - (n)*8))
+
+/*
+ * NAND Event and Error Enable Register (NAND_EVTER_EN)
+ */
+/* Operation complete event enable */
+#define IFC_NAND_EVTER_EN_OPC_EN        0x80000000
+/* Page read complete event enable */
+#define IFC_NAND_EVTER_EN_PGRDCMPL_EN   0x20000000
+/* Flash Timeout error enable */
+#define IFC_NAND_EVTER_EN_FTOER_EN      0x08000000
+/* Write Protect error enable */
+#define IFC_NAND_EVTER_EN_WPER_EN       0x04000000
+/* ECC error logging enable */
+#define IFC_NAND_EVTER_EN_ECCER_EN      0x02000000
+
+/*
+ * NAND Event and Error Interrupt Enable Register (NAND_EVTER_INTR_EN)
+ */
+/* Enable interrupt for operation complete */
+#define IFC_NAND_EVTER_INTR_OPCIR_EN            0x80000000
+/* Enable interrupt for Page read complete */
+#define IFC_NAND_EVTER_INTR_PGRDCMPLIR_EN       0x20000000
+/* Enable interrupt for Flash timeout error */
+#define IFC_NAND_EVTER_INTR_FTOERIR_EN          0x08000000
+/* Enable interrupt for Write protect error */
+#define IFC_NAND_EVTER_INTR_WPERIR_EN           0x04000000
+/* Enable interrupt for ECC error*/
+#define IFC_NAND_EVTER_INTR_ECCERIR_EN          0x02000000
+
+/*
+ * NAND Transfer Error Attribute Register-0 (NAND_ERATTR0)
+ */
+#define IFC_NAND_ERATTR0_MASK           0x0C080000
+/* Error on CS0-3 for NAND */
+#define IFC_NAND_ERATTR0_ERCS_CS0       0x00000000
+#define IFC_NAND_ERATTR0_ERCS_CS1       0x04000000
+#define IFC_NAND_ERATTR0_ERCS_CS2       0x08000000
+#define IFC_NAND_ERATTR0_ERCS_CS3       0x0C000000
+/* Transaction type of error Read/Write */
+#define IFC_NAND_ERATTR0_ERTTYPE_READ   0x00080000
+
+/*
+ * NAND Flash Status Register (NAND_FSR)
+ */
+/* First byte of data read from read status op */
+#define IFC_NAND_NFSR_RS0               0xFF000000
+/* Second byte of data read from read status op */
+#define IFC_NAND_NFSR_RS1               0x00FF0000
+
+/*
+ * ECC Error Status Registers (ECCSTAT0-ECCSTAT3)
+ */
+/* Number of ECC errors on sector n (n = 0-15) */
+#define IFC_NAND_ECCSTAT0_ERRCNT_SECTOR0_MASK   0x0F000000
+#define IFC_NAND_ECCSTAT0_ERRCNT_SECTOR0_SHIFT  24
+#define IFC_NAND_ECCSTAT0_ERRCNT_SECTOR1_MASK   0x000F0000
+#define IFC_NAND_ECCSTAT0_ERRCNT_SECTOR1_SHIFT  16
+#define IFC_NAND_ECCSTAT0_ERRCNT_SECTOR2_MASK   0x00000F00
+#define IFC_NAND_ECCSTAT0_ERRCNT_SECTOR2_SHIFT  8
+#define IFC_NAND_ECCSTAT0_ERRCNT_SECTOR3_MASK   0x0000000F
+#define IFC_NAND_ECCSTAT0_ERRCNT_SECTOR3_SHIFT  0
+#define IFC_NAND_ECCSTAT1_ERRCNT_SECTOR4_MASK   0x0F000000
+#define IFC_NAND_ECCSTAT1_ERRCNT_SECTOR4_SHIFT  24
+#define IFC_NAND_ECCSTAT1_ERRCNT_SECTOR5_MASK   0x000F0000
+#define IFC_NAND_ECCSTAT1_ERRCNT_SECTOR5_SHIFT  16
+#define IFC_NAND_ECCSTAT1_ERRCNT_SECTOR6_MASK   0x00000F00
+#define IFC_NAND_ECCSTAT1_ERRCNT_SECTOR6_SHIFT  8
+#define IFC_NAND_ECCSTAT1_ERRCNT_SECTOR7_MASK   0x0000000F
+#define IFC_NAND_ECCSTAT1_ERRCNT_SECTOR7_SHIFT  0
+#define IFC_NAND_ECCSTAT2_ERRCNT_SECTOR8_MASK   0x0F000000
+#define IFC_NAND_ECCSTAT2_ERRCNT_SECTOR8_SHIFT  24
+#define IFC_NAND_ECCSTAT2_ERRCNT_SECTOR9_MASK   0x000F0000
+#define IFC_NAND_ECCSTAT2_ERRCNT_SECTOR9_SHIFT  16
+#define IFC_NAND_ECCSTAT2_ERRCNT_SECTOR10_MASK  0x00000F00
+#define IFC_NAND_ECCSTAT2_ERRCNT_SECTOR10_SHIFT 8
+#define IFC_NAND_ECCSTAT2_ERRCNT_SECTOR11_MASK  0x0000000F
+#define IFC_NAND_ECCSTAT2_ERRCNT_SECTOR11_SHIFT 0
+#define IFC_NAND_ECCSTAT3_ERRCNT_SECTOR12_MASK  0x0F000000
+#define IFC_NAND_ECCSTAT3_ERRCNT_SECTOR12_SHIFT 24
+#define IFC_NAND_ECCSTAT3_ERRCNT_SECTOR13_MASK  0x000F0000
+#define IFC_NAND_ECCSTAT3_ERRCNT_SECTOR13_SHIFT 16
+#define IFC_NAND_ECCSTAT3_ERRCNT_SECTOR14_MASK  0x00000F00
+#define IFC_NAND_ECCSTAT3_ERRCNT_SECTOR14_SHIFT 8
+#define IFC_NAND_ECCSTAT3_ERRCNT_SECTOR15_MASK  0x0000000F
+#define IFC_NAND_ECCSTAT3_ERRCNT_SECTOR15_SHIFT 0
+
+/*
+ * NAND Control Register (NANDCR)
+ */
+#define IFC_NAND_NCR_FTOCNT_MASK        0x1E000000
+#define IFC_NAND_NCR_FTOCNT_SHIFT       25
+#define IFC_NAND_NCR_FTOCNT(n)  ((_ilog2(n) - 8)  << IFC_NAND_NCR_FTOCNT_SHIFT)
+
+/*
+ * NAND_AUTOBOOT_TRGR
+ */
+/* Trigger RCW load */
+#define IFC_NAND_AUTOBOOT_TRGR_RCW_LD   0x80000000
+/* Trigget Auto Boot */
+#define IFC_NAND_AUTOBOOT_TRGR_BOOT_LD  0x20000000
+
+/*
+ * NAND_MDR
+ */
+/* 1st read data byte when opcode SBRD */
+#define IFC_NAND_MDR_RDATA0             0xFF000000
+/* 2nd read data byte when opcode SBRD */
+#define IFC_NAND_MDR_RDATA1             0x00FF0000
+
+/*
+ * NOR Machine Specific Registers
+ */
+/*
+ * NOR Event and Error Status Register (NOR_EVTER_STAT)
+ */
+/* NOR Command Sequence Operation Complete */
+#define IFC_NOR_EVTER_STAT_OPC_NOR      0x80000000
+/* Write Protect Error */
+#define IFC_NOR_EVTER_STAT_WPER         0x04000000
+/* Command Sequence Timeout Error */
+#define IFC_NOR_EVTER_STAT_STOER        0x01000000
+
+/*
+ * NOR Event and Error Enable Register (NOR_EVTER_EN)
+ */
+/* NOR Command Seq complete event enable */
+#define IFC_NOR_EVTER_EN_OPCEN_NOR      0x80000000
+/* Write Protect Error Checking Enable */
+#define IFC_NOR_EVTER_EN_WPEREN         0x04000000
+/* Timeout Error Enable */
+#define IFC_NOR_EVTER_EN_STOEREN        0x01000000
+
+/*
+ * NOR Event and Error Interrupt Enable Register (NOR_EVTER_INTR_EN)
+ */
+/* Enable interrupt for OPC complete */
+#define IFC_NOR_EVTER_INTR_OPCEN_NOR    0x80000000
+/* Enable interrupt for write protect error */
+#define IFC_NOR_EVTER_INTR_WPEREN       0x04000000
+/* Enable interrupt for timeout error */
+#define IFC_NOR_EVTER_INTR_STOEREN      0x01000000
+
+/*
+ * NOR Transfer Error Attribute Register-0 (NOR_ERATTR0)
+ */
+/* Source ID for error transaction */
+#define IFC_NOR_ERATTR0_ERSRCID         0xFF000000
+/* AXI ID for error transation */
+#define IFC_NOR_ERATTR0_ERAID           0x000FF000
+/* Chip select corresponds to NOR error */
+#define IFC_NOR_ERATTR0_ERCS_CS0        0x00000000
+#define IFC_NOR_ERATTR0_ERCS_CS1        0x00000010
+#define IFC_NOR_ERATTR0_ERCS_CS2        0x00000020
+#define IFC_NOR_ERATTR0_ERCS_CS3        0x00000030
+/* Type of transaction read/write */
+#define IFC_NOR_ERATTR0_ERTYPE_READ     0x00000001
+
+/*
+ * NOR Transfer Error Attribute Register-2 (NOR_ERATTR2)
+ */
+#define IFC_NOR_ERATTR2_ER_NUM_PHASE_EXP        0x000F0000
+#define IFC_NOR_ERATTR2_ER_NUM_PHASE_PER        0x00000F00
+
+/*
+ * NOR Control Register (NORCR)
+ */
+#define IFC_NORCR_MASK                  0x0F0F0000
+/* No. of Address/Data Phase */
+#define IFC_NORCR_NUM_PHASE_MASK        0x0F000000
+#define IFC_NORCR_NUM_PHASE_SHIFT       24
+#define IFC_NORCR_NUM_PHASE(n)  ((n-1) << IFC_NORCR_NUM_PHASE_SHIFT)
+/* Sequence Timeout Count */
+#define IFC_NORCR_STOCNT_MASK           0x000F0000
+#define IFC_NORCR_STOCNT_SHIFT          16
+#define IFC_NORCR_STOCNT(n)     ((__ilog2(n) - 8) << IFC_NORCR_STOCNT_SHIFT)
+
+/*
+ * GPCM Machine specific registers
+ */
+/*
+ * GPCM Event and Error Status Register (GPCM_EVTER_STAT)
+ */
+/* Timeout error */
+#define IFC_GPCM_EVTER_STAT_TOER        0x04000000
+/* Parity error */
+#define IFC_GPCM_EVTER_STAT_PER         0x01000000
+
+/*
+ * GPCM Event and Error Enable Register (GPCM_EVTER_EN)
+ */
+/* Timeout error enable */
+#define IFC_GPCM_EVTER_EN_TOER_EN       0x04000000
+/* Parity error enable */
+#define IFC_GPCM_EVTER_EN_PER_EN        0x01000000
+
+/*
+ * GPCM Event and Error Interrupt Enable Register (GPCM_EVTER_INTR_EN)
+ */
+/* Enable Interrupt for timeout error */
+#define IFC_GPCM_EEIER_TOERIR_EN        0x04000000
+/* Enable Interrupt for Parity error */
+#define IFC_GPCM_EEIER_PERIR_EN         0x01000000
+
+/*
+ * GPCM Transfer Error Attribute Register-0 (GPCM_ERATTR0)
+ */
+/* Source ID for error transaction */
+#define IFC_GPCM_ERATTR0_ERSRCID        0xFF000000
+/* AXI ID for error transaction */
+#define IFC_GPCM_ERATTR0_ERAID          0x000FF000
+/* Chip select corresponds to GPCM error */
+#define IFC_GPCM_ERATTR0_ERCS_CS0       0x00000000
+#define IFC_GPCM_ERATTR0_ERCS_CS1       0x00000040
+#define IFC_GPCM_ERATTR0_ERCS_CS2       0x00000080
+#define IFC_GPCM_ERATTR0_ERCS_CS3       0x000000C0
+/* Type of transaction read/Write */
+#define IFC_GPCM_ERATTR0_ERTYPE_READ    0x00000001
+
+/*
+ * GPCM Transfer Error Attribute Register-2 (GPCM_ERATTR2)
+ */
+/* On which beat of address/data parity error is observed */
+#define IFC_GPCM_ERATTR2_PERR_BEAT              0x00000C00
+/* Parity Error on byte */
+#define IFC_GPCM_ERATTR2_PERR_BYTE              0x000000F0
+/* Parity Error reported in addr or data phase */
+#define IFC_GPCM_ERATTR2_PERR_DATA_PHASE        0x00000001
+
+/*
+ * GPCM Status Register (GPCM_STAT)
+ */
+#define IFC_GPCM_STAT_BSY               0x80000000  /* GPCM is busy */
+
+/*
+ * IFC Controller NAND Machine registers
+ */
+struct fsl_ifc_nand {
+        __be32 ncfgr;
+        u32 res1[0x4];
+        __be32 nand_fcr0;
+        __be32 nand_fcr1;
+        u32 res2[0x8];
+        __be32 row0;
+        u32 res3;
+        __be32 col0;
+        u32 res4;
+        __be32 row1;
+        u32 res5;
+        __be32 col1;
+        u32 res6;
+        __be32 row2;
+        u32 res7;
+        __be32 col2;
+        u32 res8;
+        __be32 row3;
+        u32 res9;
+        __be32 col3;
+        u32 res10[0x24];
+        __be32 nand_fbcr;
+        u32 res11;
+        __be32 nand_fir0;
+        __be32 nand_fir1;
+        __be32 nand_fir2;
+        u32 res12[0x10];
+        __be32 nand_csel;
+        u32 res13;
+        __be32 nandseq_strt;
+        u32 res14;
+        __be32 nand_evter_stat;
+        u32 res15;
+        __be32 pgrdcmpl_evt_stat;
+        u32 res16[0x2];
+        __be32 nand_evter_en;
+        u32 res17[0x2];
+        __be32 nand_evter_intr_en;
+        u32 res18[0x2];
+        __be32 nand_erattr0;
+        __be32 nand_erattr1;
+        u32 res19[0x10];
+        __be32 nand_fsr;
+        u32 res20;
+        __be32 nand_eccstat[4];
+        u32 res21[0x20];
+        __be32 nanndcr;
+        u32 res22[0x2];
+        __be32 nand_autoboot_trgr;
+        u32 res23;
+        __be32 nand_mdr;
+        u32 res24[0x5C];
+};
+
+/*
+ * IFC controller NOR Machine registers
+ */
+struct fsl_ifc_nor {
+        __be32 nor_evter_stat;
+        u32 res1[0x2];
+        __be32 nor_evter_en;
+        u32 res2[0x2];
+        __be32 nor_evter_intr_en;
+        u32 res3[0x2];
+        __be32 nor_erattr0;
+        __be32 nor_erattr1;
+        __be32 nor_erattr2;
+        u32 res4[0x4];
+        __be32 norcr;
+        u32 res5[0xEF];
+};
+
+/*
+ * IFC controller GPCM Machine registers
+ */
+struct fsl_ifc_gpcm {
+        __be32 gpcm_evter_stat;
+        u32 res1[0x2];
+        __be32 gpcm_evter_en;
+        u32 res2[0x2];
+        __be32 gpcm_evter_intr_en;
+        u32 res3[0x2];
+        __be32 gpcm_erattr0;
+        __be32 gpcm_erattr1;
+        __be32 gpcm_erattr2;
+        __be32 gpcm_stat;
+        u32 res4[0x1F3];
+};
+
+/*
+ * IFC Controller Registers
+ */
+struct fsl_ifc_regs {
+        __be32 ifc_rev;
+        u32 res1[0x3];
+        struct {
+                __be32 cspr;
+                u32 res2[0x2];
+        } cspr_cs[FSL_IFC_BANK_COUNT];
+        u32 res3[0x18];
+        struct {
+                __be32 amask;
+                u32 res4[0x2];
+        } amask_cs[FSL_IFC_BANK_COUNT];
+        u32 res5[0x18];
+        struct {
+                __be32 csor;
+                u32 res6[0x2];
+        } csor_cs[FSL_IFC_BANK_COUNT];
+        u32 res7[0x18];
+        struct {
+                __be32 ftim[4];
+                u32 res8[0x8];
+        } ftim_cs[FSL_IFC_BANK_COUNT];
+        u32 res9[0x60];
+        __be32 rb_stat;
+        u32 res10[0x2];
+        __be32 ifc_gcr;
+        u32 res11[0x2];
+        __be32 cm_evter_stat;
+        u32 res12[0x2];
+        __be32 cm_evter_en;
+        u32 res13[0x2];
+        __be32 cm_evter_intr_en;
+        u32 res14[0x2];
+        __be32 cm_erattr0;
+        __be32 cm_erattr1;
+        u32 res15[0x2];
+        __be32 ifc_ccr;
+        __be32 ifc_csr;
+        u32 res16[0x2EB];
+        struct fsl_ifc_nand ifc_nand;
+        struct fsl_ifc_nor ifc_nor;
+        struct fsl_ifc_gpcm ifc_gpcm;
+};
+
+extern unsigned int convert_ifc_address(phys_addr_t addr_base);
+extern int fsl_ifc_find(phys_addr_t addr_base);
+
+/* overview of the fsl ifc controller */
+
+struct fsl_ifc_ctrl {
+        /* device info */
+        struct device                   *dev;
+        struct fsl_ifc_regs __iomem     *regs;
+        int                             irq;
+        int                             nand_irq;
+        spinlock_t                      lock;
+        void                            *nand;
+
+        u32 nand_stat;
+        wait_queue_head_t nand_wait;
+};
+
+extern struct fsl_ifc_ctrl *fsl_ifc_ctrl_dev;
+
+
+#endif /* __ASM_FSL_IFC_H */
diff --git a/arch/powerpc/sysdev/Makefile b/arch/powerpc/sysdev/Makefile
index 8dea5935b21f..5e37b4717864 100644
--- a/arch/powerpc/sysdev/Makefile
+++ b/arch/powerpc/sysdev/Makefile
@@ -17,6 +17,7 @@ obj-$(CONFIG_FSL_SOC)		+= fsl_soc.o
 obj-$(CONFIG_FSL_PCI)           += fsl_pci.o $(fsl-msi-obj-y)
 obj-$(CONFIG_FSL_PMC)           += fsl_pmc.o
 obj-$(CONFIG_FSL_LBC)           += fsl_lbc.o
+obj-$(CONFIG_FSL_IFC)           += fsl_ifc.o
 obj-$(CONFIG_FSL_GTM)           += fsl_gtm.o
 obj-$(CONFIG_FSL_85XX_CACHE_SRAM)       += fsl_85xx_l2ctlr.o fsl_85xx_cache_sram.o
 obj-$(CONFIG_SIMPLE_GPIO)       += simple_gpio.o
diff --git a/arch/powerpc/sysdev/fsl_ifc.c b/arch/powerpc/sysdev/fsl_ifc.c
new file mode 100644
index 000000000000..b31f19f61031
--- /dev/null
+++ b/arch/powerpc/sysdev/fsl_ifc.c
@@ -0,0 +1,310 @@
+/*
+ * Copyright 2011 Freescale Semiconductor, Inc
+ *
+ * Freescale Integrated Flash Controller
+ *
+ * Author: Dipen Dudhat <Dipen.Dudhat@freescale.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/compiler.h>
+#include <linux/spinlock.h>
+#include <linux/types.h>
+#include <linux/slab.h>
+#include <linux/io.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include <asm/prom.h>
+#include <asm/fsl_ifc.h>
+
+struct fsl_ifc_ctrl *fsl_ifc_ctrl_dev;
+EXPORT_SYMBOL(fsl_ifc_ctrl_dev);
+
+/*
+ * convert_ifc_address - convert the base address
+ * @addr_base:  base address of the memory bank
+ */
+unsigned int convert_ifc_address(phys_addr_t addr_base)
+{
+        return addr_base & CSPR_BA;
+}
+EXPORT_SYMBOL(convert_ifc_address);
+
+/*
+ * fsl_ifc_find - find IFC bank
+ * @addr_base:  base address of the memory bank
+ *
+ * This function walks IFC banks comparing "Base address" field of the CSPR
+ * registers with the supplied addr_base argument. When bases match this
+ * function returns bank number (starting with 0), otherwise it returns
+ * appropriate errno value.
+ */
+int fsl_ifc_find(phys_addr_t addr_base)
+{
+        int i = 0;
+
+        if (!fsl_ifc_ctrl_dev || !fsl_ifc_ctrl_dev->regs)
+                return -ENODEV;
+
+        for (i = 0; i < ARRAY_SIZE(fsl_ifc_ctrl_dev->regs->cspr_cs); i++) {
+                __be32 cspr = in_be32(&fsl_ifc_ctrl_dev->regs->cspr_cs[i].cspr);
+                if (cspr & CSPR_V && (cspr & CSPR_BA) ==
+                                convert_ifc_address(addr_base))
+                        return i;
+        }
+
+        return -ENOENT;
+}
+EXPORT_SYMBOL(fsl_ifc_find);
+
+static int __devinit fsl_ifc_ctrl_init(struct fsl_ifc_ctrl *ctrl)
+{
+        struct fsl_ifc_regs __iomem *ifc = ctrl->regs;
+
+        /*
+         * Clear all the common status and event registers
+         */
+        if (in_be32(&ifc->cm_evter_stat) & IFC_CM_EVTER_STAT_CSER)
+                out_be32(&ifc->cm_evter_stat, IFC_CM_EVTER_STAT_CSER);
+
+        /* enable all error and events */
+        out_be32(&ifc->cm_evter_en, IFC_CM_EVTER_EN_CSEREN);
+
+        /* enable all error and event interrupts */
+        out_be32(&ifc->cm_evter_intr_en, IFC_CM_EVTER_INTR_EN_CSERIREN);
+        out_be32(&ifc->cm_erattr0, 0x0);
+        out_be32(&ifc->cm_erattr1, 0x0);
+
+        return 0;
+}
+
+static int fsl_ifc_ctrl_remove(struct platform_device *dev)
+{
+        struct fsl_ifc_ctrl *ctrl = dev_get_drvdata(&dev->dev);
+
+        free_irq(ctrl->nand_irq, ctrl);
+        free_irq(ctrl->irq, ctrl);
+
+        irq_dispose_mapping(ctrl->nand_irq);
+        irq_dispose_mapping(ctrl->irq);
+
+        iounmap(ctrl->regs);
+
+        dev_set_drvdata(&dev->dev, NULL);
+        kfree(ctrl);
+
+        return 0;
+}
+
+/*
+ * NAND events are split between an operational interrupt which only
+ * receives OPC, and an error interrupt that receives everything else,
+ * including non-NAND errors.  Whichever interrupt gets to it first
+ * records the status and wakes the wait queue.
+ */
+static DEFINE_SPINLOCK(nand_irq_lock);
+
+static u32 check_nand_stat(struct fsl_ifc_ctrl *ctrl)
+{
+        struct fsl_ifc_regs __iomem *ifc = ctrl->regs;
+        unsigned long flags;
+        u32 stat;
+
+        spin_lock_irqsave(&nand_irq_lock, flags);
+
+        stat = in_be32(&ifc->ifc_nand.nand_evter_stat);
+        if (stat) {
+                out_be32(&ifc->ifc_nand.nand_evter_stat, stat);
+                ctrl->nand_stat = stat;
+                wake_up(&ctrl->nand_wait);
+        }
+
+        spin_unlock_irqrestore(&nand_irq_lock, flags);
+
+        return stat;
+}
+
+static irqreturn_t fsl_ifc_nand_irq(int irqno, void *data)
+{
+        struct fsl_ifc_ctrl *ctrl = data;
+
+        if (check_nand_stat(ctrl))
+                return IRQ_HANDLED;
+
+        return IRQ_NONE;
+}
+
+/*
+ * NOTE: This interrupt is used to report ifc events of various kinds,
+ * such as transaction errors on the chipselects.
+ */
+static irqreturn_t fsl_ifc_ctrl_irq(int irqno, void *data)
+{
+        struct fsl_ifc_ctrl *ctrl = data;
+        struct fsl_ifc_regs __iomem *ifc = ctrl->regs;
+        u32 err_axiid, err_srcid, status, cs_err, err_addr;
+        irqreturn_t ret = IRQ_NONE;
+
+        /* read for chip select error */
+        cs_err = in_be32(&ifc->cm_evter_stat);
+        if (cs_err) {
+                dev_err(ctrl->dev, "transaction sent to IFC is not mapped to"
+                                "any memory bank 0x%08X\n", cs_err);
+                /* clear the chip select error */
+                out_be32(&ifc->cm_evter_stat, IFC_CM_EVTER_STAT_CSER);
+
+                /* read error attribute registers print the error information */
+                status = in_be32(&ifc->cm_erattr0);
+                err_addr = in_be32(&ifc->cm_erattr1);
+
+                if (status & IFC_CM_ERATTR0_ERTYP_READ)
+                        dev_err(ctrl->dev, "Read transaction error"
+                                "CM_ERATTR0 0x%08X\n", status);
+                else
+                        dev_err(ctrl->dev, "Write transaction error"
+                                "CM_ERATTR0 0x%08X\n", status);
+
+                err_axiid = (status & IFC_CM_ERATTR0_ERAID) >>
+                                        IFC_CM_ERATTR0_ERAID_SHIFT;
+                dev_err(ctrl->dev, "AXI ID of the error"
+                                        "transaction 0x%08X\n", err_axiid);
+
+                err_srcid = (status & IFC_CM_ERATTR0_ESRCID) >>
+                                        IFC_CM_ERATTR0_ESRCID_SHIFT;
+                dev_err(ctrl->dev, "SRC ID of the error"
+                                        "transaction 0x%08X\n", err_srcid);
+
+                dev_err(ctrl->dev, "Transaction Address corresponding to error"
+                                        "ERADDR 0x%08X\n", err_addr);
+
+                ret = IRQ_HANDLED;
+        }
+
+        if (check_nand_stat(ctrl))
+                ret = IRQ_HANDLED;
+
+        return ret;
+}
+
+/*
+ * fsl_ifc_ctrl_probe
+ *
+ * called by device layer when it finds a device matching
+ * one our driver can handled. This code allocates all of
+ * the resources needed for the controller only.  The
+ * resources for the NAND banks themselves are allocated
+ * in the chip probe function.
+*/
+static int __devinit fsl_ifc_ctrl_probe(struct platform_device *dev)
+{
+        int ret = 0;
+
+
+        dev_info(&dev->dev, "Freescale Integrated Flash Controller\n");
+
+        fsl_ifc_ctrl_dev = kzalloc(sizeof(*fsl_ifc_ctrl_dev), GFP_KERNEL);
+        if (!fsl_ifc_ctrl_dev)
+                return -ENOMEM;
+
+        dev_set_drvdata(&dev->dev, fsl_ifc_ctrl_dev);
+
+        /* IOMAP the entire IFC region */
+        fsl_ifc_ctrl_dev->regs = of_iomap(dev->dev.of_node, 0);
+        if (!fsl_ifc_ctrl_dev->regs) {
+                dev_err(&dev->dev, "failed to get memory region\n");
+                ret = -ENODEV;
+                goto err;
+        }
+
+        /* get the Controller level irq */
+        fsl_ifc_ctrl_dev->irq = irq_of_parse_and_map(dev->dev.of_node, 0);
+        if (fsl_ifc_ctrl_dev->irq == NO_IRQ) {
+                dev_err(&dev->dev, "failed to get irq resource "
+                                                        "for IFC\n");
+                ret = -ENODEV;
+                goto err;
+        }
+
+        /* get the nand machine irq */
+        fsl_ifc_ctrl_dev->nand_irq =
+                        irq_of_parse_and_map(dev->dev.of_node, 1);
+        if (fsl_ifc_ctrl_dev->nand_irq == NO_IRQ) {
+                dev_err(&dev->dev, "failed to get irq resource "
+                                                "for NAND Machine\n");
+                ret = -ENODEV;
+                goto err;
+        }
+
+        fsl_ifc_ctrl_dev->dev = &dev->dev;
+
+        ret = fsl_ifc_ctrl_init(fsl_ifc_ctrl_dev);
+        if (ret < 0)
+                goto err;
+
+        init_waitqueue_head(&fsl_ifc_ctrl_dev->nand_wait);
+
+        ret = request_irq(fsl_ifc_ctrl_dev->irq, fsl_ifc_ctrl_irq, IRQF_SHARED,
+                          "fsl-ifc", fsl_ifc_ctrl_dev);
+        if (ret != 0) {
+                dev_err(&dev->dev, "failed to install irq (%d)\n",
+                        fsl_ifc_ctrl_dev->irq);
+                goto err_irq;
+        }
+
+        ret = request_irq(fsl_ifc_ctrl_dev->nand_irq, fsl_ifc_nand_irq, 0,
+                          "fsl-ifc-nand", fsl_ifc_ctrl_dev);
+        if (ret != 0) {
+                dev_err(&dev->dev, "failed to install irq (%d)\n",
+                        fsl_ifc_ctrl_dev->nand_irq);
+                goto err_nandirq;
+        }
+
+        return 0;
+
+err_nandirq:
+        free_irq(fsl_ifc_ctrl_dev->nand_irq, fsl_ifc_ctrl_dev);
+        irq_dispose_mapping(fsl_ifc_ctrl_dev->nand_irq);
+err_irq:
+        free_irq(fsl_ifc_ctrl_dev->irq, fsl_ifc_ctrl_dev);
+        irq_dispose_mapping(fsl_ifc_ctrl_dev->irq);
+err:
+        return ret;
+}
+
+static const struct of_device_id fsl_ifc_match[] = {
+        {
+                .compatible = "fsl,ifc",
+        },
+        {},
+};
+
+static struct platform_driver fsl_ifc_ctrl_driver = {
+        .driver = {
+                .name   = "fsl-ifc",
+                .of_match_table = fsl_ifc_match,
+        },
+        .probe       = fsl_ifc_ctrl_probe,
+        .remove      = fsl_ifc_ctrl_remove,
+};
+
+module_platform_driver(fsl_ifc_ctrl_driver);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Freescale Semiconductor");
+MODULE_DESCRIPTION("Freescale Integrated Flash Controller driver");