Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc:
  [POWERPC] Fix Oops with TQM5200 on TQM5200
  [POWERPC] mpc5200: Fix null dereference if bestcomm fails to initialize
  [POWERPC] mpc5200-fec: Fix possible NULL dereference in mdio driver
  [POWERPC] Fix crash in init_ipic_sysfs on efika
  [POWERPC] Don't use 64k pages for ioremap on pSeries

3 files changed, 15 insertions, 6 deletions

diff --git a/arch/powerpc/mm/hash_utils_64.c b/arch/powerpc/mm/hash_utils_64.c
index 590f1f67c874..a83dfa3cf40c 100644
--- a/arch/powerpc/mm/hash_utils_64.c
+++ b/arch/powerpc/mm/hash_utils_64.c
@@ -351,9 +351,14 @@ static void __init htab_init_page_sizes(void)
 		mmu_vmalloc_psize = MMU_PAGE_64K;
 		if (mmu_linear_psize == MMU_PAGE_4K)
 			mmu_linear_psize = MMU_PAGE_64K;
-		if (cpu_has_feature(CPU_FTR_CI_LARGE_PAGE))
-			mmu_io_psize = MMU_PAGE_64K;
-		else
+		if (cpu_has_feature(CPU_FTR_CI_LARGE_PAGE)) {
+			/*
+			 * Don't use 64k pages for ioremap on pSeries, since
+			 * that would stop us accessing the HEA ethernet.
+			 */
+			if (!machine_is(pseries))
+				mmu_io_psize = MMU_PAGE_64K;
+		} else
 			mmu_ci_restrictions = 1;
 	}
 #endif /* CONFIG_PPC_64K_PAGES */
diff --git a/arch/powerpc/sysdev/bestcomm/bestcomm.c b/arch/powerpc/sysdev/bestcomm/bestcomm.c
index f589999361e0..64ec7d629363 100644
--- a/arch/powerpc/sysdev/bestcomm/bestcomm.c
+++ b/arch/powerpc/sysdev/bestcomm/bestcomm.c
@@ -52,6 +52,10 @@ bcom_task_alloc(int bd_count, int bd_size, int priv_size)
 	int i, tasknum = -1;
 	struct bcom_task *tsk;
 
+	/* Don't try to do anything if bestcomm init failed */
+	if (!bcom_eng)
+		return NULL;
+
 	/* Get and reserve a task num */
 	spin_lock(&bcom_eng->lock);
 
@@ -484,8 +488,8 @@ mpc52xx_bcom_remove(struct of_device *op)
 }
 
 static struct of_device_id mpc52xx_bcom_of_match[] = {
-	{ .type = "dma-controller", .compatible = "fsl,mpc5200-bestcomm", },
-	{ .type = "dma-controller", .compatible = "mpc5200-bestcomm", },
+	{ .compatible = "fsl,mpc5200-bestcomm", },
+	{ .compatible = "mpc5200-bestcomm", },
 	{},
 };
 
diff --git a/arch/powerpc/sysdev/ipic.c b/arch/powerpc/sysdev/ipic.c
index ae0dbf4c1d66..0f2dfb0aaa6a 100644
--- a/arch/powerpc/sysdev/ipic.c
+++ b/arch/powerpc/sysdev/ipic.c
@@ -906,7 +906,7 @@ static int __init init_ipic_sysfs(void)
 {
 	int rc;
 
-	if (!primary_ipic->regs)
+	if (!primary_ipic || !primary_ipic->regs)
 		return -ENODEV;
 	printk(KERN_DEBUG "Registering ipic with sysfs...\n");