Merge remote-tracking branch 'master' into queue

Merge reason: development work has dependency on kvm patches merged
upstream.

Conflicts:
	arch/powerpc/include/asm/Kbuild
	arch/powerpc/include/asm/kvm_para.h

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>

9 files changed, 403 insertions, 98 deletions

diff --git a/arch/powerpc/sysdev/Makefile b/arch/powerpc/sysdev/Makefile
index 1bd7ecb2462..a57600b3a4e 100644
--- a/arch/powerpc/sysdev/Makefile
+++ b/arch/powerpc/sysdev/Makefile
@@ -15,7 +15,7 @@ obj-$(CONFIG_PPC_DCR_NATIVE)	+= dcr-low.o
 obj-$(CONFIG_PPC_PMI)		+= pmi.o
 obj-$(CONFIG_U3_DART)		+= dart_iommu.o
 obj-$(CONFIG_MMIO_NVRAM)	+= mmio_nvram.o
-obj-$(CONFIG_FSL_SOC)		+= fsl_soc.o
+obj-$(CONFIG_FSL_SOC)		+= fsl_soc.o fsl_mpic_err.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
diff --git a/arch/powerpc/sysdev/dart_iommu.c b/arch/powerpc/sysdev/dart_iommu.c
index 4f2680f431b..bd968a43a48 100644
--- a/arch/powerpc/sysdev/dart_iommu.c
+++ b/arch/powerpc/sysdev/dart_iommu.c
@@ -43,7 +43,6 @@
 #include <asm/iommu.h>
 #include <asm/pci-bridge.h>
 #include <asm/machdep.h>
-#include <asm/abs_addr.h>
 #include <asm/cacheflush.h>
 #include <asm/ppc-pci.h>
 
@@ -74,11 +73,16 @@ static int dart_is_u4;
 
 #define DBG(...)
 
+static DEFINE_SPINLOCK(invalidate_lock);
+
 static inline void dart_tlb_invalidate_all(void)
 {
 	unsigned long l = 0;
 	unsigned int reg, inv_bit;
 	unsigned long limit;
+	unsigned long flags;
+
+	spin_lock_irqsave(&invalidate_lock, flags);
 
 	DBG("dart: flush\n");
 
@@ -111,12 +115,17 @@ retry:
 			panic("DART: TLB did not flush after waiting a long "
 			      "time. Buggy U3 ?");
 	}
+
+	spin_unlock_irqrestore(&invalidate_lock, flags);
 }
 
 static inline void dart_tlb_invalidate_one(unsigned long bus_rpn)
 {
 	unsigned int reg;
 	unsigned int l, limit;
+	unsigned long flags;
+
+	spin_lock_irqsave(&invalidate_lock, flags);
 
 	reg = DART_CNTL_U4_ENABLE | DART_CNTL_U4_IONE |
 		(bus_rpn & DART_CNTL_U4_IONE_MASK);
@@ -138,6 +147,8 @@ wait_more:
 			panic("DART: TLB did not flush after waiting a long "
 			      "time. Buggy U4 ?");
 	}
+
+	spin_unlock_irqrestore(&invalidate_lock, flags);
 }
 
 static void dart_flush(struct iommu_table *tbl)
@@ -167,7 +178,7 @@ static int dart_build(struct iommu_table *tbl, long index,
 	 */
 	l = npages;
 	while (l--) {
-		rpn = virt_to_abs(uaddr) >> DART_PAGE_SHIFT;
+		rpn = __pa(uaddr) >> DART_PAGE_SHIFT;
 
 		*(dp++) = DARTMAP_VALID | (rpn & DARTMAP_RPNMASK);
 
@@ -244,7 +255,7 @@ static int __init dart_init(struct device_node *dart_node)
 		panic("DART: Cannot map registers!");
 
 	/* Map in DART table */
-	dart_vbase = ioremap(virt_to_abs(dart_tablebase), dart_tablesize);
+	dart_vbase = ioremap(__pa(dart_tablebase), dart_tablesize);
 
 	/* Fill initial table */
 	for (i = 0; i < dart_tablesize/4; i++)
@@ -463,7 +474,7 @@ void __init alloc_dart_table(void)
 	 * will blow up an entire large page anyway in the kernel mapping
 	 */
 	dart_tablebase = (unsigned long)
-		abs_to_virt(memblock_alloc_base(1UL<<24, 1UL<<24, 0x80000000L));
+		__va(memblock_alloc_base(1UL<<24, 1UL<<24, 0x80000000L));
 
 	printk(KERN_INFO "DART table allocated at: %lx\n", dart_tablebase);
 }
diff --git a/arch/powerpc/sysdev/fsl_85xx_l2ctlr.c b/arch/powerpc/sysdev/fsl_85xx_l2ctlr.c
index 68ac3aacb19..d131c8a1cb1 100644
--- a/arch/powerpc/sysdev/fsl_85xx_l2ctlr.c
+++ b/arch/powerpc/sysdev/fsl_85xx_l2ctlr.c
@@ -193,6 +193,16 @@ static struct of_device_id mpc85xx_l2ctlr_of_match[] = {
 	{
 		.compatible = "fsl,mpc8548-l2-cache-controller",
 	},
+	{	.compatible = "fsl,mpc8544-l2-cache-controller",},
+	{	.compatible = "fsl,mpc8572-l2-cache-controller",},
+	{	.compatible = "fsl,mpc8536-l2-cache-controller",},
+	{	.compatible = "fsl,p1021-l2-cache-controller",},
+	{	.compatible = "fsl,p1012-l2-cache-controller",},
+	{	.compatible = "fsl,p1025-l2-cache-controller",},
+	{	.compatible = "fsl,p1016-l2-cache-controller",},
+	{	.compatible = "fsl,p1024-l2-cache-controller",},
+	{	.compatible = "fsl,p1015-l2-cache-controller",},
+	{	.compatible = "fsl,p1010-l2-cache-controller",},
 	{},
 };
 
diff --git a/arch/powerpc/sysdev/fsl_ifc.c b/arch/powerpc/sysdev/fsl_ifc.c
index b31f19f6103..097cc9d2585 100644
--- a/arch/powerpc/sysdev/fsl_ifc.c
+++ b/arch/powerpc/sysdev/fsl_ifc.c
@@ -244,12 +244,6 @@ static int __devinit fsl_ifc_ctrl_probe(struct platform_device *dev)
 	/* 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;
 
@@ -267,12 +261,14 @@ static int __devinit fsl_ifc_ctrl_probe(struct platform_device *dev)
 		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;
+	if (fsl_ifc_ctrl_dev->nand_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;
diff --git a/arch/powerpc/sysdev/fsl_mpic_err.c b/arch/powerpc/sysdev/fsl_mpic_err.c
new file mode 100644
index 00000000000..b83f32562a3
--- /dev/null
+++ b/arch/powerpc/sysdev/fsl_mpic_err.c
@@ -0,0 +1,149 @@
+/*
+ * Copyright (C) 2012 Freescale Semiconductor, Inc.
+ *
+ * Author: Varun Sethi <varun.sethi@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; version 2 of the
+ * License.
+ *
+ */
+
+#include <linux/irq.h>
+#include <linux/smp.h>
+#include <linux/interrupt.h>
+
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/mpic.h>
+
+#include "mpic.h"
+
+#define MPIC_ERR_INT_BASE	0x3900
+#define MPIC_ERR_INT_EISR	0x0000
+#define MPIC_ERR_INT_EIMR	0x0010
+
+static inline u32 mpic_fsl_err_read(u32 __iomem *base, unsigned int err_reg)
+{
+	return in_be32(base + (err_reg >> 2));
+}
+
+static inline void mpic_fsl_err_write(u32 __iomem *base, u32 value)
+{
+	out_be32(base + (MPIC_ERR_INT_EIMR >> 2), value);
+}
+
+static void fsl_mpic_mask_err(struct irq_data *d)
+{
+	u32 eimr;
+	struct mpic *mpic = irq_data_get_irq_chip_data(d);
+	unsigned int src = virq_to_hw(d->irq) - mpic->err_int_vecs[0];
+
+	eimr = mpic_fsl_err_read(mpic->err_regs, MPIC_ERR_INT_EIMR);
+	eimr |= (1 << (31 - src));
+	mpic_fsl_err_write(mpic->err_regs, eimr);
+}
+
+static void fsl_mpic_unmask_err(struct irq_data *d)
+{
+	u32 eimr;
+	struct mpic *mpic = irq_data_get_irq_chip_data(d);
+	unsigned int src = virq_to_hw(d->irq) - mpic->err_int_vecs[0];
+
+	eimr = mpic_fsl_err_read(mpic->err_regs, MPIC_ERR_INT_EIMR);
+	eimr &= ~(1 << (31 - src));
+	mpic_fsl_err_write(mpic->err_regs, eimr);
+}
+
+static struct irq_chip fsl_mpic_err_chip = {
+	.irq_disable	= fsl_mpic_mask_err,
+	.irq_mask	= fsl_mpic_mask_err,
+	.irq_unmask	= fsl_mpic_unmask_err,
+};
+
+int mpic_setup_error_int(struct mpic *mpic, int intvec)
+{
+	int i;
+
+	mpic->err_regs = ioremap(mpic->paddr + MPIC_ERR_INT_BASE, 0x1000);
+	if (!mpic->err_regs) {
+		pr_err("could not map mpic error registers\n");
+		return -ENOMEM;
+	}
+	mpic->hc_err = fsl_mpic_err_chip;
+	mpic->hc_err.name = mpic->name;
+	mpic->flags |= MPIC_FSL_HAS_EIMR;
+	/* allocate interrupt vectors for error interrupts */
+	for (i = MPIC_MAX_ERR - 1; i >= 0; i--)
+		mpic->err_int_vecs[i] = --intvec;
+
+	return 0;
+}
+
+int mpic_map_error_int(struct mpic *mpic, unsigned int virq, irq_hw_number_t  hw)
+{
+	if ((mpic->flags & MPIC_FSL_HAS_EIMR) &&
+	    (hw >= mpic->err_int_vecs[0] &&
+	     hw <= mpic->err_int_vecs[MPIC_MAX_ERR - 1])) {
+		WARN_ON(mpic->flags & MPIC_SECONDARY);
+
+		pr_debug("mpic: mapping as Error Interrupt\n");
+		irq_set_chip_data(virq, mpic);
+		irq_set_chip_and_handler(virq, &mpic->hc_err,
+					 handle_level_irq);
+		return 1;
+	}
+
+	return 0;
+}
+
+static irqreturn_t fsl_error_int_handler(int irq, void *data)
+{
+	struct mpic *mpic = (struct mpic *) data;
+	u32 eisr, eimr;
+	int errint;
+	unsigned int cascade_irq;
+
+	eisr = mpic_fsl_err_read(mpic->err_regs, MPIC_ERR_INT_EISR);
+	eimr = mpic_fsl_err_read(mpic->err_regs, MPIC_ERR_INT_EIMR);
+
+	if (!(eisr & ~eimr))
+		return IRQ_NONE;
+
+	while (eisr) {
+		errint = __builtin_clz(eisr);
+		cascade_irq = irq_linear_revmap(mpic->irqhost,
+				 mpic->err_int_vecs[errint]);
+		WARN_ON(cascade_irq == NO_IRQ);
+		if (cascade_irq != NO_IRQ) {
+			generic_handle_irq(cascade_irq);
+		} else {
+			eimr |=  1 << (31 - errint);
+			mpic_fsl_err_write(mpic->err_regs, eimr);
+		}
+		eisr &= ~(1 << (31 - errint));
+	}
+
+	return IRQ_HANDLED;
+}
+
+void mpic_err_int_init(struct mpic *mpic, irq_hw_number_t irqnum)
+{
+	unsigned int virq;
+	int ret;
+
+	virq = irq_create_mapping(mpic->irqhost, irqnum);
+	if (virq == NO_IRQ) {
+		pr_err("Error interrupt setup failed\n");
+		return;
+	}
+
+	/* Mask all error interrupts */
+	mpic_fsl_err_write(mpic->err_regs, ~0);
+
+	ret = request_irq(virq, fsl_error_int_handler, IRQF_NO_THREAD,
+		    "mpic-error-int", mpic);
+	if (ret)
+		pr_err("Failed to register error interrupt handler\n");
+}
diff --git a/arch/powerpc/sysdev/fsl_pci.c b/arch/powerpc/sysdev/fsl_pci.c
index c37f4613632..ffb93ae9379 100644
--- a/arch/powerpc/sysdev/fsl_pci.c
+++ b/arch/powerpc/sysdev/fsl_pci.c
@@ -38,15 +38,15 @@ static int fsl_pcie_bus_fixup, is_mpc83xx_pci;
 
 static void __devinit quirk_fsl_pcie_header(struct pci_dev *dev)
 {
-	u8 progif;
+	u8 hdr_type;
 
 	/* if we aren't a PCIe don't bother */
 	if (!pci_find_capability(dev, PCI_CAP_ID_EXP))
 		return;
 
 	/* if we aren't in host mode don't bother */
-	pci_read_config_byte(dev, PCI_CLASS_PROG, &progif);
-	if (progif & 0x1)
+	pci_read_config_byte(dev, PCI_HEADER_TYPE, &hdr_type);
+	if ((hdr_type & 0x7f) != PCI_HEADER_TYPE_BRIDGE)
 		return;
 
 	dev->class = PCI_CLASS_BRIDGE_PCI << 8;
@@ -143,18 +143,20 @@ static void __init setup_pci_atmu(struct pci_controller *hose,
 	pr_debug("PCI memory map start 0x%016llx, size 0x%016llx\n",
 		 (u64)rsrc->start, (u64)resource_size(rsrc));
 
-	if (of_device_is_compatible(hose->dn, "fsl,qoriq-pcie-v2.2")) {
-		win_idx = 2;
-		start_idx = 0;
-		end_idx = 3;
-	}
-
 	pci = ioremap(rsrc->start, resource_size(rsrc));
 	if (!pci) {
 	    dev_err(hose->parent, "Unable to map ATMU registers\n");
 	    return;
 	}
 
+	if (early_find_capability(hose, 0, 0, PCI_CAP_ID_EXP)) {
+		if (in_be32(&pci->block_rev1) >= PCIE_IP_REV_2_2) {
+			win_idx = 2;
+			start_idx = 0;
+			end_idx = 3;
+		}
+	}
+
 	/* Disable all windows (except powar0 since it's ignored) */
 	for(i = 1; i < 5; i++)
 		out_be32(&pci->pow[i].powar, 0);
@@ -425,7 +427,7 @@ int __init fsl_add_bridge(struct device_node *dev, int is_primary)
 	struct pci_controller *hose;
 	struct resource rsrc;
 	const int *bus_range;
-	u8 progif;
+	u8 hdr_type, progif;
 
 	if (!of_device_is_available(dev)) {
 		pr_warning("%s: disabled\n", dev->full_name);
@@ -457,15 +459,17 @@ int __init fsl_add_bridge(struct device_node *dev, int is_primary)
 	setup_indirect_pci(hose, rsrc.start, rsrc.start + 0x4,
 		PPC_INDIRECT_TYPE_BIG_ENDIAN);
 
-	early_read_config_byte(hose, 0, 0, PCI_CLASS_PROG, &progif);
-	if ((progif & 1) == 1) {
-		/* unmap cfg_data & cfg_addr separately if not on same page */
-		if (((unsigned long)hose->cfg_data & PAGE_MASK) !=
-		    ((unsigned long)hose->cfg_addr & PAGE_MASK))
-			iounmap(hose->cfg_data);
-		iounmap(hose->cfg_addr);
-		pcibios_free_controller(hose);
-		return -ENODEV;
+	if (early_find_capability(hose, 0, 0, PCI_CAP_ID_EXP)) {
+		/* For PCIE read HEADER_TYPE to identify controler mode */
+		early_read_config_byte(hose, 0, 0, PCI_HEADER_TYPE, &hdr_type);
+		if ((hdr_type & 0x7f) != PCI_HEADER_TYPE_BRIDGE)
+			goto no_bridge;
+
+	} else {
+		/* For PCI read PROG to identify controller mode */
+		early_read_config_byte(hose, 0, 0, PCI_CLASS_PROG, &progif);
+		if ((progif & 1) == 1)
+			goto no_bridge;
 	}
 
 	setup_pci_cmd(hose);
@@ -494,6 +498,15 @@ int __init fsl_add_bridge(struct device_node *dev, int is_primary)
 	setup_pci_atmu(hose, &rsrc);
 
 	return 0;
+
+no_bridge:
+	/* unmap cfg_data & cfg_addr separately if not on same page */
+	if (((unsigned long)hose->cfg_data & PAGE_MASK) !=
+	    ((unsigned long)hose->cfg_addr & PAGE_MASK))
+		iounmap(hose->cfg_data);
+	iounmap(hose->cfg_addr);
+	pcibios_free_controller(hose);
+	return -ENODEV;
 }
 #endif /* CONFIG_FSL_SOC_BOOKE || CONFIG_PPC_86xx */
 
@@ -818,6 +831,7 @@ static const struct of_device_id pci_ids[] = {
 	{ .compatible = "fsl,p1010-pcie", },
 	{ .compatible = "fsl,p1023-pcie", },
 	{ .compatible = "fsl,p4080-pcie", },
+	{ .compatible = "fsl,qoriq-pcie-v2.4", },
 	{ .compatible = "fsl,qoriq-pcie-v2.3", },
 	{ .compatible = "fsl,qoriq-pcie-v2.2", },
 	{},
@@ -825,57 +839,80 @@ static const struct of_device_id pci_ids[] = {
 
 struct device_node *fsl_pci_primary;
 
-void __devinit fsl_pci_init(void)
+void fsl_pci_assign_primary(void)
 {
-	int ret;
-	struct device_node *node;
-	struct pci_controller *hose;
-	dma_addr_t max = 0xffffffff;
+	struct device_node *np;
 
 	/* Callers can specify the primary bus using other means. */
-	if (!fsl_pci_primary) {
-		/* If a PCI host bridge contains an ISA node, it's primary. */
-		node = of_find_node_by_type(NULL, "isa");
-		while ((fsl_pci_primary = of_get_parent(node))) {
-			of_node_put(node);
-			node = fsl_pci_primary;
-
-			if (of_match_node(pci_ids, node))
-				break;
-		}
+	if (fsl_pci_primary)
+		return;
+
+	/* If a PCI host bridge contains an ISA node, it's primary. */
+	np = of_find_node_by_type(NULL, "isa");
+	while ((fsl_pci_primary = of_get_parent(np))) {
+		of_node_put(np);
+		np = fsl_pci_primary;
+
+		if (of_match_node(pci_ids, np) && of_device_is_available(np))
+			return;
 	}
 
-	node = NULL;
-	for_each_node_by_type(node, "pci") {
-		if (of_match_node(pci_ids, node)) {
-			/*
-			 * If there's no PCI host bridge with ISA, arbitrarily
-			 * designate one as primary.  This can go away once
-			 * various bugs with primary-less systems are fixed.
-			 */
-			if (!fsl_pci_primary)
-				fsl_pci_primary = node;
-
-			ret = fsl_add_bridge(node, fsl_pci_primary == node);
-			if (ret == 0) {
-				hose = pci_find_hose_for_OF_device(node);
-				max = min(max, hose->dma_window_base_cur +
-						hose->dma_window_size);
-			}
+	/*
+	 * If there's no PCI host bridge with ISA, arbitrarily
+	 * designate one as primary.  This can go away once
+	 * various bugs with primary-less systems are fixed.
+	 */
+	for_each_matching_node(np, pci_ids) {
+		if (of_device_is_available(np)) {
+			fsl_pci_primary = np;
+			of_node_put(np);
+			return;
 		}
 	}
+}
 
+static int __devinit fsl_pci_probe(struct platform_device *pdev)
+{
+	int ret;
+	struct device_node *node;
 #ifdef CONFIG_SWIOTLB
-	/*
-	 * if we couldn't map all of DRAM via the dma windows
-	 * we need SWIOTLB to handle buffers located outside of
-	 * dma capable memory region
-	 */
-	if (memblock_end_of_DRAM() - 1 > max) {
-		ppc_swiotlb_enable = 1;
-		set_pci_dma_ops(&swiotlb_dma_ops);
-		ppc_md.pci_dma_dev_setup = pci_dma_dev_setup_swiotlb;
+	struct pci_controller *hose;
+#endif
+
+	node = pdev->dev.of_node;
+	ret = fsl_add_bridge(node, fsl_pci_primary == node);
+
+#ifdef CONFIG_SWIOTLB
+	if (ret == 0) {
+		hose = pci_find_hose_for_OF_device(pdev->dev.of_node);
+
+		/*
+		 * if we couldn't map all of DRAM via the dma windows
+		 * we need SWIOTLB to handle buffers located outside of
+		 * dma capable memory region
+		 */
+		if (memblock_end_of_DRAM() - 1 > hose->dma_window_base_cur +
+				hose->dma_window_size)
+			ppc_swiotlb_enable = 1;
 	}
 #endif
+
+	mpc85xx_pci_err_probe(pdev);
+
+	return 0;
+}
+
+static struct platform_driver fsl_pci_driver = {
+	.driver = {
+		.name = "fsl-pci",
+		.of_match_table = pci_ids,
+	},
+	.probe = fsl_pci_probe,
+};
+
+static int __init fsl_pci_init(void)
+{
+	return platform_driver_register(&fsl_pci_driver);
 }
+arch_initcall(fsl_pci_init);
 #endif
diff --git a/arch/powerpc/sysdev/fsl_pci.h b/arch/powerpc/sysdev/fsl_pci.h
index baa0fd18289..d078537adec 100644
--- a/arch/powerpc/sysdev/fsl_pci.h
+++ b/arch/powerpc/sysdev/fsl_pci.h
@@ -16,6 +16,7 @@
 
 #define PCIE_LTSSM	0x0404		/* PCIE Link Training and Status */
 #define PCIE_LTSSM_L0	0x16		/* L0 state */
+#define PCIE_IP_REV_2_2		0x02080202 /* PCIE IP block version Rev2.2 */
 #define PIWAR_EN		0x80000000	/* Enable */
 #define PIWAR_PF		0x20000000	/* prefetch */
 #define PIWAR_TGI_LOCAL		0x00f00000	/* target - local memory */
@@ -57,7 +58,9 @@ struct ccsr_pci {
 	__be32	pex_pme_mes_disr;	/* 0x.024 - PCIE PME and message disable register */
 	__be32	pex_pme_mes_ier;	/* 0x.028 - PCIE PME and message interrupt enable register */
 	__be32	pex_pmcr;		/* 0x.02c - PCIE power management command register */
-	u8	res3[3024];
+	u8	res3[3016];
+	__be32	block_rev1;	/* 0x.bf8 - PCIE Block Revision register 1 */
+	__be32	block_rev2;	/* 0x.bfc - PCIE Block Revision register 2 */
 
 /* PCI/PCI Express outbound window 0-4
  * Window 0 is the default window and is the only window enabled upon reset.
@@ -95,10 +98,19 @@ u64 fsl_pci_immrbar_base(struct pci_controller *hose);
 
 extern struct device_node *fsl_pci_primary;
 
-#ifdef CONFIG_FSL_PCI
-void fsl_pci_init(void);
+#ifdef CONFIG_PCI
+void fsl_pci_assign_primary(void);
 #else
-static inline void fsl_pci_init(void) {}
+static inline void fsl_pci_assign_primary(void) {}
+#endif
+
+#ifdef CONFIG_EDAC_MPC85XX
+int mpc85xx_pci_err_probe(struct platform_device *op);
+#else
+static inline int mpc85xx_pci_err_probe(struct platform_device *op)
+{
+	return -ENOTSUPP;
+}
 #endif
 
 #endif /* __POWERPC_FSL_PCI_H */
diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c
index bfc6211e542..9c6e535daad 100644
--- a/arch/powerpc/sysdev/mpic.c
+++ b/arch/powerpc/sysdev/mpic.c
@@ -6,7 +6,7 @@
  *  with various broken implementations of this HW.
  *
  *  Copyright (C) 2004 Benjamin Herrenschmidt, IBM Corp.
- *  Copyright 2010-2011 Freescale Semiconductor, Inc.
+ *  Copyright 2010-2012 Freescale Semiconductor, Inc.
  *
  *  This file is subject to the terms and conditions of the GNU General Public
  *  License.  See the file COPYING in the main directory of this archive
@@ -221,24 +221,24 @@ static inline void _mpic_ipi_write(struct mpic *mpic, unsigned int ipi, u32 valu
 	_mpic_write(mpic->reg_type, &mpic->gregs, offset, value);
 }
 
-static inline u32 _mpic_tm_read(struct mpic *mpic, unsigned int tm)
+static inline unsigned int mpic_tm_offset(struct mpic *mpic, unsigned int tm)
 {
-	unsigned int offset = MPIC_INFO(TIMER_VECTOR_PRI) +
-			      ((tm & 3) * MPIC_INFO(TIMER_STRIDE));
+	return (tm >> 2) * MPIC_TIMER_GROUP_STRIDE +
+	       (tm & 3) * MPIC_INFO(TIMER_STRIDE);
+}
 
-	if (tm >= 4)
-		offset += 0x1000 / 4;
+static inline u32 _mpic_tm_read(struct mpic *mpic, unsigned int tm)
+{
+	unsigned int offset = mpic_tm_offset(mpic, tm) +
+			      MPIC_INFO(TIMER_VECTOR_PRI);
 
 	return _mpic_read(mpic->reg_type, &mpic->tmregs, offset);
 }
 
 static inline void _mpic_tm_write(struct mpic *mpic, unsigned int tm, u32 value)
 {
-	unsigned int offset = MPIC_INFO(TIMER_VECTOR_PRI) +
-			      ((tm & 3) * MPIC_INFO(TIMER_STRIDE));
-
-	if (tm >= 4)
-		offset += 0x1000 / 4;
+	unsigned int offset = mpic_tm_offset(mpic, tm) +
+			      MPIC_INFO(TIMER_VECTOR_PRI);
 
 	_mpic_write(mpic->reg_type, &mpic->tmregs, offset, value);
 }
@@ -1026,6 +1026,9 @@ static int mpic_host_map(struct irq_domain *h, unsigned int virq,
 		return 0;
 	}
 
+	if (mpic_map_error_int(mpic, virq, hw))
+		return 0;
+
 	if (hw >= mpic->num_sources)
 		return -EINVAL;
 
@@ -1085,7 +1088,16 @@ static int mpic_host_xlate(struct irq_domain *h, struct device_node *ct,
 		 */
 		switch (intspec[2]) {
 		case 0:
-		case 1: /* no EISR/EIMR support for now, treat as shared IRQ */
+			break;
+		case 1:
+			if (!(mpic->flags & MPIC_FSL_HAS_EIMR))
+				break;
+
+			if (intspec[3] >= ARRAY_SIZE(mpic->err_int_vecs))
+				return -EINVAL;
+
+			*out_hwirq = mpic->err_int_vecs[intspec[3]];
+
 			break;
 		case 2:
 			if (intspec[0] >= ARRAY_SIZE(mpic->ipi_vecs))
@@ -1301,6 +1313,42 @@ struct mpic * __init mpic_alloc(struct device_node *node,
 	mpic_map(mpic, mpic->paddr, &mpic->gregs, MPIC_INFO(GREG_BASE), 0x1000);
 	mpic_map(mpic, mpic->paddr, &mpic->tmregs, MPIC_INFO(TIMER_BASE), 0x1000);
 
+	if (mpic->flags & MPIC_FSL) {
+		u32 brr1, version;
+		int ret;
+
+		/*
+		 * Yes, Freescale really did put global registers in the
+		 * magic per-cpu area -- and they don't even show up in the
+		 * non-magic per-cpu copies that this driver normally uses.
+		 */
+		mpic_map(mpic, mpic->paddr, &mpic->thiscpuregs,
+			 MPIC_CPU_THISBASE, 0x1000);
+
+		brr1 = _mpic_read(mpic->reg_type, &mpic->thiscpuregs,
+				MPIC_FSL_BRR1);
+		version = brr1 & MPIC_FSL_BRR1_VER;
+
+		/* Error interrupt mask register (EIMR) is required for
+		 * handling individual device error interrupts. EIMR
+		 * was added in MPIC version 4.1.
+		 *
+		 * Over here we reserve vector number space for error
+		 * interrupt vectors. This space is stolen from the
+		 * global vector number space, as in case of ipis
+		 * and timer interrupts.
+		 *
+		 * Available vector space = intvec_top - 12, where 12
+		 * is the number of vectors which have been consumed by
+		 * ipis and timer interrupts.
+		 */
+		if (version >= 0x401) {
+			ret = mpic_setup_error_int(mpic, intvec_top - 12);
+			if (ret)
+				return NULL;
+		}
+	}
+
 	/* Reset */
 
 	/* When using a device-node, reset requests are only honored if the MPIC
@@ -1440,6 +1488,7 @@ void __init mpic_assign_isu(struct mpic *mpic, unsigned int isu_num,
 void __init mpic_init(struct mpic *mpic)
 {
 	int i, cpu;
+	int num_timers = 4;
 
 	BUG_ON(mpic->num_sources == 0);
 
@@ -1448,15 +1497,34 @@ void __init mpic_init(struct mpic *mpic)
 	/* Set current processor priority to max */
 	mpic_cpu_write(MPIC_INFO(CPU_CURRENT_TASK_PRI), 0xf);
 
+	if (mpic->flags & MPIC_FSL) {
+		u32 brr1 = _mpic_read(mpic->reg_type, &mpic->thiscpuregs,
+				      MPIC_FSL_BRR1);
+		u32 version = brr1 & MPIC_FSL_BRR1_VER;
+
+		/*
+		 * Timer group B is present at the latest in MPIC 3.1 (e.g.
+		 * mpc8536).  It is not present in MPIC 2.0 (e.g. mpc8544).
+		 * I don't know about the status of intermediate versions (or
+		 * whether they even exist).
+		 */
+		if (version >= 0x0301)
+			num_timers = 8;
+	}
+
+	/* FSL mpic error interrupt intialization */
+	if (mpic->flags & MPIC_FSL_HAS_EIMR)
+		mpic_err_int_init(mpic, MPIC_FSL_ERR_INT);
+
 	/* Initialize timers to our reserved vectors and mask them for now */
-	for (i = 0; i < 4; i++) {
+	for (i = 0; i < num_timers; i++) {
+		unsigned int offset = mpic_tm_offset(mpic, i);
+
 		mpic_write(mpic->tmregs,
-			   i * MPIC_INFO(TIMER_STRIDE) +
-			   MPIC_INFO(TIMER_DESTINATION),
+			   offset + MPIC_INFO(TIMER_DESTINATION),
 			   1 << hard_smp_processor_id());
 		mpic_write(mpic->tmregs,
-			   i * MPIC_INFO(TIMER_STRIDE) +
-			   MPIC_INFO(TIMER_VECTOR_PRI),
+			   offset + MPIC_INFO(TIMER_VECTOR_PRI),
 			   MPIC_VECPRI_MASK |
 			   (9 << MPIC_VECPRI_PRIORITY_SHIFT) |
 			   (mpic->timer_vecs[0] + i));
diff --git a/arch/powerpc/sysdev/mpic.h b/arch/powerpc/sysdev/mpic.h
index 13f3e8913a9..24bf07a6392 100644
--- a/arch/powerpc/sysdev/mpic.h
+++ b/arch/powerpc/sysdev/mpic.h
@@ -40,4 +40,26 @@ extern int mpic_set_affinity(struct irq_data *d,
 			     const struct cpumask *cpumask, bool force);
 extern void mpic_reset_core(int cpu);
 
+#ifdef CONFIG_FSL_SOC
+extern int mpic_map_error_int(struct mpic *mpic, unsigned int virq, irq_hw_number_t  hw);
+extern void mpic_err_int_init(struct mpic *mpic, irq_hw_number_t irqnum);
+extern int mpic_setup_error_int(struct mpic *mpic, int intvec);
+#else
+static inline int mpic_map_error_int(struct mpic *mpic, unsigned int virq, irq_hw_number_t  hw)
+{
+	return 0;
+}
+
+
+static inline void mpic_err_int_init(struct mpic *mpic, irq_hw_number_t irqnum)
+{
+	return;
+}
+
+static inline int mpic_setup_error_int(struct mpic *mpic, int intvec)
+{
+	return -1;
+}
+#endif
+
 #endif /* _POWERPC_SYSDEV_MPIC_H */