Merge remote-tracking branch 'scott/next' into next

<<
This contains a fix for a chroma_defconfig build break that was
introduced by e6500 tablewalk support, and a device tree binding patch
that missed the previous pull request due to some last-minute polishing.
>>

4 files changed, 139 insertions, 1 deletions

diff --git a/Documentation/devicetree/bindings/clock/corenet-clock.txt b/Documentation/devicetree/bindings/clock/corenet-clock.txt
new file mode 100644
index 000000000000..24711af48e30
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/corenet-clock.txt
@@ -0,0 +1,134 @@
+* Clock Block on Freescale CoreNet Platforms
+
+Freescale CoreNet chips take primary clocking input from the external
+SYSCLK signal. The SYSCLK input (frequency) is multiplied using
+multiple phase locked loops (PLL) to create a variety of frequencies
+which can then be passed to a variety of internal logic, including
+cores and peripheral IP blocks.
+Please refer to the Reference Manual for details.
+
+1. Clock Block Binding
+
+Required properties:
+- compatible: Should contain a specific clock block compatible string
+	and a single chassis clock compatible string.
+	Clock block strings include, but not limited to, one of the:
+	* "fsl,p2041-clockgen"
+	* "fsl,p3041-clockgen"
+	* "fsl,p4080-clockgen"
+	* "fsl,p5020-clockgen"
+	* "fsl,p5040-clockgen"
+	* "fsl,t4240-clockgen"
+	* "fsl,b4420-clockgen"
+	* "fsl,b4860-clockgen"
+	Chassis clock strings include:
+	* "fsl,qoriq-clockgen-1.0": for chassis 1.0 clocks
+	* "fsl,qoriq-clockgen-2.0": for chassis 2.0 clocks
+- reg: Describes the address of the device's resources within the
+	address space defined by its parent bus, and resource zero
+	represents the clock register set
+- clock-frequency: Input system clock frequency
+
+Recommended properties:
+- ranges: Allows valid translation between child's address space and
+	parent's. Must be present if the device has sub-nodes.
+- #address-cells: Specifies the number of cells used to represent
+	physical base addresses.  Must be present if the device has
+	sub-nodes and set to 1 if present
+- #size-cells: Specifies the number of cells used to represent
+	the size of an address. Must be present if the device has
+	sub-nodes and set to 1 if present
+
+2. Clock Provider/Consumer Binding
+
+Most of the bindings are from the common clock binding[1].
+ [1] Documentation/devicetree/bindings/clock/clock-bindings.txt
+
+Required properties:
+- compatible : Should include one of the following:
+	* "fsl,qoriq-core-pll-1.0" for core PLL clocks (v1.0)
+	* "fsl,qoriq-core-pll-2.0" for core PLL clocks (v2.0)
+	* "fsl,qoriq-core-mux-1.0" for core mux clocks (v1.0)
+	* "fsl,qoriq-core-mux-2.0" for core mux clocks (v2.0)
+	* "fsl,qoriq-sysclk-1.0": for input system clock (v1.0).
+		It takes parent's clock-frequency as its clock.
+	* "fsl,qoriq-sysclk-2.0": for input system clock (v2.0).
+		It takes parent's clock-frequency as its clock.
+- #clock-cells: From common clock binding. The number of cells in a
+	clock-specifier. Should be <0> for "fsl,qoriq-sysclk-[1,2].0"
+	clocks, or <1> for "fsl,qoriq-core-pll-[1,2].0" clocks.
+	For "fsl,qoriq-core-pll-[1,2].0" clocks, the single
+	clock-specifier cell may take the following values:
+	* 0 - equal to the PLL frequency
+	* 1 - equal to the PLL frequency divided by 2
+	* 2 - equal to the PLL frequency divided by 4
+
+Recommended properties:
+- clocks: Should be the phandle of input parent clock
+- clock-names: From common clock binding, indicates the clock name
+- clock-output-names: From common clock binding, indicates the names of
+	output clocks
+- reg: Should be the offset and length of clock block base address.
+	The length should be 4.
+
+Example for clock block and clock provider:
+/ {
+	clockgen: global-utilities@e1000 {
+		compatible = "fsl,p5020-clockgen", "fsl,qoriq-clockgen-1.0";
+		ranges = <0x0 0xe1000 0x1000>;
+		clock-frequency = <133333333>;
+		reg = <0xe1000 0x1000>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		sysclk: sysclk {
+			#clock-cells = <0>;
+			compatible = "fsl,qoriq-sysclk-1.0";
+			clock-output-names = "sysclk";
+		}
+
+		pll0: pll0@800 {
+			#clock-cells = <1>;
+			reg = <0x800 0x4>;
+			compatible = "fsl,qoriq-core-pll-1.0";
+			clocks = <&sysclk>;
+			clock-output-names = "pll0", "pll0-div2";
+		};
+
+		pll1: pll1@820 {
+			#clock-cells = <1>;
+			reg = <0x820 0x4>;
+			compatible = "fsl,qoriq-core-pll-1.0";
+			clocks = <&sysclk>;
+			clock-output-names = "pll1", "pll1-div2";
+		};
+
+		mux0: mux0@0 {
+			#clock-cells = <0>;
+			reg = <0x0 0x4>;
+			compatible = "fsl,qoriq-core-mux-1.0";
+			clocks = <&pll0 0>, <&pll0 1>, <&pll1 0>, <&pll1 1>;
+			clock-names = "pll0", "pll0-div2", "pll1", "pll1-div2";
+			clock-output-names = "cmux0";
+		};
+
+		mux1: mux1@20 {
+			#clock-cells = <0>;
+			reg = <0x20 0x4>;
+			compatible = "fsl,qoriq-core-mux-1.0";
+			clocks = <&pll0 0>, <&pll0 1>, <&pll1 0>, <&pll1 1>;
+			clock-names = "pll0", "pll0-div2", "pll1", "pll1-div2";
+			clock-output-names = "cmux1";
+		};
+	};
+  }
+
+Example for clock consumer:
+
+/ {
+	cpu0: PowerPC,e5500@0 {
+		...
+		clocks = <&mux0>;
+		...
+	};
+  }
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index d15594ec213d..a5e5d2ec380b 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -532,6 +532,7 @@ config PPC_16K_PAGES
 
 config PPC_64K_PAGES
 	bool "64k page size" if 44x || PPC_STD_MMU_64 || PPC_BOOK3E_64
+	depends on !PPC_FSL_BOOK3E
 	select PPC_HAS_HASH_64K if PPC_STD_MMU_64
 
 config PPC_256K_PAGES
diff --git a/arch/powerpc/mm/tlb_low_64e.S b/arch/powerpc/mm/tlb_low_64e.S
index 16250b162375..c95eb323e9ae 100644
--- a/arch/powerpc/mm/tlb_low_64e.S
+++ b/arch/powerpc/mm/tlb_low_64e.S
@@ -240,6 +240,7 @@ itlb_miss_fault_bolted:
 	beq	tlb_miss_common_bolted
 	b	itlb_miss_kernel_bolted
 
+#ifdef CONFIG_PPC_FSL_BOOK3E
 /*
  * TLB miss handling for e6500 and derivatives, using hardware tablewalk.
  *
@@ -409,7 +410,7 @@ itlb_miss_fault_e6500:
 	TLB_MISS_STATS_I(MMSTAT_TLB_MISS_NORM_FAULT)
 	tlb_epilog_bolted
 	b	exc_instruction_storage_book3e
-
+#endif /* CONFIG_PPC_FSL_BOOK3E */
 
 /**********************************************************************
  *                                                                    *
diff --git a/arch/powerpc/mm/tlb_nohash.c b/arch/powerpc/mm/tlb_nohash.c
index 735839b74dc5..b37a58e1c92d 100644
--- a/arch/powerpc/mm/tlb_nohash.c
+++ b/arch/powerpc/mm/tlb_nohash.c
@@ -557,10 +557,12 @@ static void setup_mmu_htw(void)
 		patch_exception(0x1c0, exc_data_tlb_miss_htw_book3e);
 		patch_exception(0x1e0, exc_instruction_tlb_miss_htw_book3e);
 		break;
+#ifdef CONFIG_PPC_FSL_BOOK3E
 	case PPC_HTW_E6500:
 		patch_exception(0x1c0, exc_data_tlb_miss_e6500_book3e);
 		patch_exception(0x1e0, exc_instruction_tlb_miss_e6500_book3e);
 		break;
+#endif
 	}
 	pr_info("MMU: Book3E HW tablewalk %s\n",
 		book3e_htw_mode != PPC_HTW_NONE ? "enabled" : "not supported");