Merge tag 'xtensa-20151108' of git://github.com/czankel/xtensa-linux

Pull xtensa updates from Chris Zankel:

 - fix remaining issues with noMMU cores
 - fix build for cores w/o cache or zero overhead loop options
 - fix boot of secondary cores in SMP configuration
 - add support for DMA to high memory pages
 - add dma_to_phys and phys_to_dma functions.

* tag 'xtensa-20151108' of git://github.com/czankel/xtensa-linux:
  xtensa: implement dma_to_phys and phys_to_dma
  xtensa: support DMA to high memory
  Revert "xtensa: cache inquiry and unaligned cache handling functions"
  xtensa: drop unused sections and remapped reset handlers
  xtensa: fix secondary core boot in SMP
  xtensa: add FORCE_MAX_ZONEORDER to Kconfig
  xtensa: nommu: provide defconfig for de212 on kc705
  xtensa: nommu: xtfpga: add kc705 DTS
  xtensa: add de212 core variant
  xtensa: nommu: select HAVE_FUTEX_CMPXCHG
  xtensa: nommu: fix default memory start address
  xtensa: nommu: provide correct KIO addresses
  xtensa: nommu: fix USER_RING definition
  xtensa: xtfpga: fix integer overflow in TASK_SIZE
  xtensa: fix build for configs without cache options
  xtensa: fixes for configs without loop option

3 files changed, 17 insertions, 41 deletions

diff --git a/arch/xtensa/boot/boot-elf/boot.lds.S b/arch/xtensa/boot/boot-elf/boot.lds.S
index 958b33af96b7..e54f2c9df63a 100644
--- a/arch/xtensa/boot/boot-elf/boot.lds.S
+++ b/arch/xtensa/boot/boot-elf/boot.lds.S
@@ -40,17 +40,4 @@ SECTIONS
 		*(.bss)
 		__bss_end = .;
 	}
-
-#ifdef CONFIG_MMU
-	/*
-	 * This is a remapped copy of the Reset Vector Code.
-	 * It keeps gdb in sync with the PC after switching
-	 * to the temporary mapping used while setting up
-	 * the V2 MMU mappings for Linux.
-	 */
-	.ResetVector.remapped_text 0x46000000 (INFO):
-	{
-		*(.ResetVector.remapped_text)
-	}
-#endif
 }
diff --git a/arch/xtensa/boot/boot-elf/bootstrap.S b/arch/xtensa/boot/boot-elf/bootstrap.S
index 9341a5750694..e6bf313613cf 100644
--- a/arch/xtensa/boot/boot-elf/bootstrap.S
+++ b/arch/xtensa/boot/boot-elf/bootstrap.S
@@ -58,8 +58,6 @@ _SetupMMU:
 	wsr	a0, ps
 	rsync
 
-	Offset = _SetupMMU - _ResetVector
-
 #ifndef CONFIG_INITIALIZE_XTENSA_MMU_INSIDE_VMLINUX
 	initialize_mmu
 #endif
@@ -74,29 +72,3 @@ reset:
 	movi	a3, 0
 	movi	a4, 0
 	jx      a0
-
-#ifdef CONFIG_MMU
-	.align 4
-
-	.section	.ResetVector.remapped_text, "x"
-	.global         _RemappedResetVector
-
-	/* Do org before literals */
-	.org 0
-
-_RemappedResetVector:
-	.begin  no-absolute-literals
-	.literal_position
-
-	_j	_RemappedSetupMMU
-
-	/* Position Remapped code at the same location as the original code */
-	. = _RemappedResetVector + Offset
-
-_RemappedSetupMMU:
-#ifndef CONFIG_INITIALIZE_XTENSA_MMU_INSIDE_VMLINUX
-	initialize_mmu
-#endif
-
-	.end    no-absolute-literals
-#endif
diff --git a/arch/xtensa/boot/dts/kc705_nommu.dts b/arch/xtensa/boot/dts/kc705_nommu.dts
new file mode 100644
index 000000000000..65f3d741b964
--- /dev/null
+++ b/arch/xtensa/boot/dts/kc705_nommu.dts
@@ -0,0 +1,17 @@
+/dts-v1/;
+/include/ "xtfpga.dtsi"
+/include/ "xtfpga-flash-128m.dtsi"
+
+/ {
+	compatible = "cdns,xtensa-kc705";
+	chosen {
+		bootargs = "earlycon=uart8250,mmio32,0x9d050020,115200n8 console=ttyS0,115200n8 ip=dhcp root=/dev/nfs rw debug";
+	};
+	memory@0 {
+		device_type = "memory";
+		reg = <0x60000000 0x10000000>;
+	};
+	soc {
+		ranges = <0x00000000 0x90000000 0x10000000>;
+	};
+};