Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc

Pull powerpc updates from Benjamin Herrenschmidt:
 "Some highlights in addition to the usual batch of fixes:

   - 64TB address space support for 64-bit processes by Aneesh Kumar

   - Gavin Shan did a major cleanup & re-organization of our EEH support
     code (IBM fancy PCI error handling & recovery infrastructure) which
     paves the way for supporting different platform backends, along
     with some rework of the PCIe code for the PowerNV platform in order
     to remove home made resource allocations and instead use the
     generic code (which is possible after some small improvements to it
     done by Gavin).

   - Uprobes support by Ananth N Mavinakayanahalli

   - A pile of embedded updates from Freescale folks, including new SoC
     and board supports, more KVM stuff including preparing for 64-bit
     BookE KVM support, ePAPR 1.1 updates, etc..."

Fixup trivial conflicts in drivers/scsi/ipr.c

* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (146 commits)
  powerpc/iommu: Fix multiple issues with IOMMU pools code
  powerpc: Fix VMX fix for memcpy case
  driver/mtd:IFC NAND:Initialise internal SRAM before any write
  powerpc/fsl-pci: use 'Header Type' to identify PCIE mode
  powerpc/eeh: Don't release eeh_mutex in eeh_phb_pe_get
  powerpc: Remove tlb batching hack for nighthawk
  powerpc: Set paca->data_offset = 0 for boot cpu
  powerpc/perf: Sample only if SIAR-Valid bit is set in P7+
  powerpc/fsl-pci: fix warning when CONFIG_SWIOTLB is disabled
  powerpc/mpc85xx: Update interrupt handling for IFC controller
  powerpc/85xx: Enable USB support in p1023rds_defconfig
  powerpc/smp: Do not disable IPI interrupts during suspend
  powerpc/eeh: Fix crash on converting OF node to edev
  powerpc/eeh: Lock module while handling EEH event
  powerpc/kprobe: Don't emulate store when kprobe stwu r1
  powerpc/kprobe: Complete kprobe and migrate exception frame
  powerpc/kprobe: Introduce a new thread flag
  powerpc: Remove unused __get_user64() and __put_user64()
  powerpc/eeh: Global mutex to protect PE tree
  powerpc/eeh: Remove EEH PE for normal PCI hotplug
  ...

1 files changed, 55 insertions, 1 deletions

diff --git a/drivers/mtd/nand/fsl_ifc_nand.c b/drivers/mtd/nand/fsl_ifc_nand.c
index 9602c1b7e27e..01e2f2e87d8c 100644
--- a/drivers/mtd/nand/fsl_ifc_nand.c
+++ b/drivers/mtd/nand/fsl_ifc_nand.c
@@ -31,6 +31,7 @@
 #include <linux/mtd/nand_ecc.h>
 #include <asm/fsl_ifc.h>
 
+#define FSL_IFC_V1_1_0	0x01010000
 #define ERR_BYTE		0xFF /* Value returned for read
 					bytes when read failed	*/
 #define IFC_TIMEOUT_MSECS	500  /* Maximum number of mSecs to wait
@@ -773,13 +774,62 @@ static int fsl_ifc_chip_init_tail(struct mtd_info *mtd)
 	return 0;
 }
 
+static void fsl_ifc_sram_init(struct fsl_ifc_mtd *priv)
+{
+	struct fsl_ifc_ctrl *ctrl = priv->ctrl;
+	struct fsl_ifc_regs __iomem *ifc = ctrl->regs;
+	uint32_t csor = 0, csor_8k = 0, csor_ext = 0;
+	uint32_t cs = priv->bank;
+
+	/* Save CSOR and CSOR_ext */
+	csor = in_be32(&ifc->csor_cs[cs].csor);
+	csor_ext = in_be32(&ifc->csor_cs[cs].csor_ext);
+
+	/* chage PageSize 8K and SpareSize 1K*/
+	csor_8k = (csor & ~(CSOR_NAND_PGS_MASK)) | 0x0018C000;
+	out_be32(&ifc->csor_cs[cs].csor, csor_8k);
+	out_be32(&ifc->csor_cs[cs].csor_ext, 0x0000400);
+
+	/* READID */
+	out_be32(&ifc->ifc_nand.nand_fir0,
+			(IFC_FIR_OP_CMD0 << IFC_NAND_FIR0_OP0_SHIFT) |
+			(IFC_FIR_OP_UA  << IFC_NAND_FIR0_OP1_SHIFT) |
+			(IFC_FIR_OP_RB << IFC_NAND_FIR0_OP2_SHIFT));
+	out_be32(&ifc->ifc_nand.nand_fcr0,
+			NAND_CMD_READID << IFC_NAND_FCR0_CMD0_SHIFT);
+	out_be32(&ifc->ifc_nand.row3, 0x0);
+
+	out_be32(&ifc->ifc_nand.nand_fbcr, 0x0);
+
+	/* Program ROW0/COL0 */
+	out_be32(&ifc->ifc_nand.row0, 0x0);
+	out_be32(&ifc->ifc_nand.col0, 0x0);
+
+	/* set the chip select for NAND Transaction */
+	out_be32(&ifc->ifc_nand.nand_csel, cs << IFC_NAND_CSEL_SHIFT);
+
+	/* start read seq */
+	out_be32(&ifc->ifc_nand.nandseq_strt, IFC_NAND_SEQ_STRT_FIR_STRT);
+
+	/* wait for command complete flag or timeout */
+	wait_event_timeout(ctrl->nand_wait, ctrl->nand_stat,
+			   IFC_TIMEOUT_MSECS * HZ/1000);
+
+	if (ctrl->nand_stat != IFC_NAND_EVTER_STAT_OPC)
+		printk(KERN_ERR "fsl-ifc: Failed to Initialise SRAM\n");
+
+	/* Restore CSOR and CSOR_ext */
+	out_be32(&ifc->csor_cs[cs].csor, csor);
+	out_be32(&ifc->csor_cs[cs].csor_ext, csor_ext);
+}
+
 static int fsl_ifc_chip_init(struct fsl_ifc_mtd *priv)
 {
 	struct fsl_ifc_ctrl *ctrl = priv->ctrl;
 	struct fsl_ifc_regs __iomem *ifc = ctrl->regs;
 	struct nand_chip *chip = &priv->chip;
 	struct nand_ecclayout *layout;
-	u32 csor;
+	u32 csor, ver;
 
 	/* Fill in fsl_ifc_mtd structure */
 	priv->mtd.priv = chip;
@@ -874,6 +924,10 @@ static int fsl_ifc_chip_init(struct fsl_ifc_mtd *priv)
 		chip->ecc.mode = NAND_ECC_SOFT;
 	}
 
+	ver = in_be32(&ifc->ifc_rev);
+	if (ver == FSL_IFC_V1_1_0)
+		fsl_ifc_sram_init(priv);
+
 	return 0;
 }