Merge tag 'arc-v3.10-rc1-part1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc

Pull ARC port updates from Vineet Gupta:
 "Support for two new platforms based on ARC700:
   - Abilis TB10x SoC [Chritisian/Pierrick]
   - Simulator only System-C Model [Mischa]

  ARC specific MM improvements:
   - Avoid full TLB flush (ASID increment) on munmap (even single page)
   - VIPT Cache Flushing improvements
     + Delayed dcache flush for non-aliasing dcache (big performance boost)
     + icache flush aliasing agnostic (no need to kill all possible aliases)

  Others:
   - Avoid needless rebuild of DTB files for every kernel build
   - Remove builtin cmdline as that is already provided by DeviceTree/bootargs
   - Fixing unaligned access emulation corner case
   - checkpatch fixes [Sachin]
   - Various fixlets [Noam]
   - Minor build failures/cleanups"

* tag 'arc-v3.10-rc1-part1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc: (35 commits)
  ARC: [mm] Lazy D-cache flush (non aliasing VIPT)
  ARC: [mm] micro-optimize page size icache invalidate
  ARC: [mm] remove the pessimistic all-alias-invalidate icache helpers
  ARC: [mm] consolidate icache/dcache sync code
  ARC: [mm] optimise icache flush for kernel mappings
  ARC: [mm] optimise icache flush for user mappings
  ARC: [mm] optimize needless full mm TLB flush on munmap
  ARC: Add support for nSIM OSCI System C model
  ARC: [TB10x] Adapt device tree to new compatible string
  ARC: [TB10x] Add support for TB10x platform
  ARC: [TB10x] Device tree of TB100 and TB101 Development Kits
  ARC: Prepare interrupt code for external controllers
  ARC: Allow embedded arc-intc to be properly placed in DT intc hierarchy
  ARC: [cmdline] Don't overwrite u-boot provided bootargs
  ARC: [cmdline] Remove CONFIG_CMDLINE
  ARC: [plat-arcfpga] defconfig update
  ARC: unaligned access emulation broken if callee-reg dest of LD/ST
  ARC: unaligned access emulation error handling consolidation
  ARC: Debug/crash-printing Improvements
  ARC: fix typo with clock speed
  ...

1 files changed, 349 insertions, 0 deletions

diff --git a/arch/arc/boot/dts/abilis_tb101.dtsi b/arch/arc/boot/dts/abilis_tb101.dtsi
new file mode 100644
index 00000000000..fd25c212049
--- /dev/null
+++ b/arch/arc/boot/dts/abilis_tb101.dtsi
@@ -0,0 +1,349 @@
+/*
+ * Abilis Systems TB101 SOC device tree
+ *
+ * Copyright (C) Abilis Systems 2013
+ *
+ * Author: Christian Ruppert <christian.ruppert@abilis.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ */
+
+/include/ "abilis_tb10x.dtsi"
+
+/* interrupt specifiers
+ * --------------------
+ * 0: rising, 1: low, 2: high, 3: falling,
+ */
+
+/ {
+	clock-frequency		= <500000000>;	/* 500 MHZ */
+
+	soc100 {
+		bus-frequency	= <166666666>;
+
+		pll0: oscillator {
+			clock-frequency  = <1000000000>;
+		};
+		cpu_clk: clkdiv_cpu {
+			clock-mult = <1>;
+			clock-div = <2>;
+		};
+		ahb_clk: clkdiv_ahb {
+			clock-mult = <1>;
+			clock-div = <6>;
+		};
+
+		iomux: iomux@FF10601c {
+			/* Port 1 */
+			pctl_tsin_s0: pctl-tsin-s0 {   /* Serial TS-in 0 */
+				pingrp = "mis0_pins";
+			};
+			pctl_tsin_s1: pctl-tsin-s1 {   /* Serial TS-in 1 */
+				pingrp = "mis1_pins";
+			};
+			pctl_gpio_a: pctl-gpio-a {     /* GPIO bank A */
+				pingrp = "gpioa_pins";
+			};
+			pctl_tsin_p1: pctl-tsin-p1 {   /* Parallel TS-in 1 */
+				pingrp = "mip1_pins";
+			};
+			/* Port 2 */
+			pctl_tsin_s2: pctl-tsin-s2 {   /* Serial TS-in 2 */
+				pingrp = "mis2_pins";
+			};
+			pctl_tsin_s3: pctl-tsin-s3 {   /* Serial TS-in 3 */
+				pingrp = "mis3_pins";
+			};
+			pctl_gpio_c: pctl-gpio-c {     /* GPIO bank C */
+				pingrp = "gpioc_pins";
+			};
+			pctl_tsin_p3: pctl-tsin-p3 {   /* Parallel TS-in 3 */
+				pingrp = "mip3_pins";
+			};
+			/* Port 3 */
+			pctl_tsin_s4: pctl-tsin-s4 {   /* Serial TS-in 4 */
+				pingrp = "mis4_pins";
+			};
+			pctl_tsin_s5: pctl-tsin-s5 {   /* Serial TS-in 5 */
+				pingrp = "mis5_pins";
+			};
+			pctl_gpio_e: pctl-gpio-e {     /* GPIO bank E */
+				pingrp = "gpioe_pins";
+			};
+			pctl_tsin_p5: pctl-tsin-p5 {   /* Parallel TS-in 5 */
+				pingrp = "mip5_pins";
+			};
+			/* Port 4 */
+			pctl_tsin_s6: pctl-tsin-s6 {   /* Serial TS-in 6 */
+				pingrp = "mis6_pins";
+			};
+			pctl_tsin_s7: pctl-tsin-s7 {   /* Serial TS-in 7 */
+				pingrp = "mis7_pins";
+			};
+			pctl_gpio_g: pctl-gpio-g {     /* GPIO bank G */
+				pingrp = "gpiog_pins";
+			};
+			pctl_tsin_p7: pctl-tsin-p7 {   /* Parallel TS-in 7 */
+				pingrp = "mip7_pins";
+			};
+			/* Port 5 */
+			pctl_gpio_j: pctl-gpio-j {     /* GPIO bank J */
+				pingrp = "gpioj_pins";
+			};
+			pctl_gpio_k: pctl-gpio-k {     /* GPIO bank K */
+				pingrp = "gpiok_pins";
+			};
+			pctl_ciplus: pctl-ciplus {     /* CI+ interface */
+				pingrp = "ciplus_pins";
+			};
+			pctl_mcard: pctl-mcard {       /* M-Card interface */
+				pingrp = "mcard_pins";
+			};
+			pctl_stc0: pctl-stc0 {         /* Smart card I/F 0 */
+				pingrp = "stc0_pins";
+			};
+			pctl_stc1: pctl-stc1 {         /* Smart card I/F 1 */
+				pingrp = "stc1_pins";
+			};
+			/* Port 6 */
+			pctl_tsout_p: pctl-tsout-p {   /* Parallel TS-out */
+				pingrp = "mop_pins";
+			};
+			pctl_tsout_s0: pctl-tsout-s0 { /* Serial TS-out 0 */
+				pingrp = "mos0_pins";
+			};
+			pctl_tsout_s1: pctl-tsout-s1 { /* Serial TS-out 1 */
+				pingrp = "mos1_pins";
+			};
+			pctl_tsout_s2: pctl-tsout-s2 { /* Serial TS-out 2 */
+				pingrp = "mos2_pins";
+			};
+			pctl_tsout_s3: pctl-tsout-s3 { /* Serial TS-out 3 */
+				pingrp = "mos3_pins";
+			};
+			/* Port 7 */
+			pctl_uart0: pctl-uart0 {       /* UART 0 */
+				pingrp = "uart0_pins";
+			};
+			pctl_uart1: pctl-uart1 {       /* UART 1 */
+				pingrp = "uart1_pins";
+			};
+			pctl_gpio_l: pctl-gpio-l {     /* GPIO bank L */
+				pingrp = "gpiol_pins";
+			};
+			pctl_gpio_m: pctl-gpio-m {     /* GPIO bank M */
+				pingrp = "gpiom_pins";
+			};
+			/* Port 8 */
+			pctl_spi3: pctl-spi3 {
+				pingrp = "spi3_pins";
+			};
+			pctl_jtag: pctl-jtag {
+				pingrp = "jtag_pins";
+			};
+			/* Port 9 */
+			pctl_spi1: pctl-spi1 {
+				pingrp = "spi1_pins";
+			};
+			pctl_gpio_n: pctl-gpio-n {
+				pingrp = "gpion_pins";
+			};
+			/* Unmuxed GPIOs */
+			pctl_gpio_b: pctl-gpio-b {
+				pingrp = "gpiob_pins";
+			};
+			pctl_gpio_d: pctl-gpio-d {
+				pingrp = "gpiod_pins";
+			};
+			pctl_gpio_f: pctl-gpio-f {
+				pingrp = "gpiof_pins";
+			};
+			pctl_gpio_h: pctl-gpio-h {
+				pingrp = "gpioh_pins";
+			};
+			pctl_gpio_i: pctl-gpio-i {
+				pingrp = "gpioi_pins";
+			};
+		};
+
+		gpioa: gpio@FF140000 {
+			compatible = "abilis,tb10x-gpio";
+			interrupt-controller;
+			#interrupt-cells = <1>;
+			interrupt-parent = <&tb10x_ictl>;
+			interrupts = <27 1>;
+			reg = <0xFF140000 0x1000>;
+			gpio-controller;
+			#gpio-cells = <1>;
+			gpio-base  = <0>;
+			gpio-pins = <&pctl_gpio_a>;
+		};
+		gpiob: gpio@FF141000 {
+			compatible = "abilis,tb10x-gpio";
+			interrupt-controller;
+			#interrupt-cells = <1>;
+			interrupt-parent = <&tb10x_ictl>;
+			interrupts = <27 1>;
+			reg = <0xFF141000 0x1000>;
+			gpio-controller;
+			#gpio-cells = <1>;
+			gpio-base  = <3>;
+			gpio-pins = <&pctl_gpio_b>;
+		};
+		gpioc: gpio@FF142000 {
+			compatible = "abilis,tb10x-gpio";
+			interrupt-controller;
+			#interrupt-cells = <1>;
+			interrupt-parent = <&tb10x_ictl>;
+			interrupts = <27 1>;
+			reg = <0xFF142000 0x1000>;
+			gpio-controller;
+			#gpio-cells = <1>;
+			gpio-base  = <5>;
+			gpio-pins = <&pctl_gpio_c>;
+		};
+		gpiod: gpio@FF143000 {
+			compatible = "abilis,tb10x-gpio";
+			interrupt-controller;
+			#interrupt-cells = <1>;
+			interrupt-parent = <&tb10x_ictl>;
+			interrupts = <27 1>;
+			reg = <0xFF143000 0x1000>;
+			gpio-controller;
+			#gpio-cells = <1>;
+			gpio-base  = <8>;
+			gpio-pins = <&pctl_gpio_d>;
+		};
+		gpioe: gpio@FF144000 {
+			compatible = "abilis,tb10x-gpio";
+			interrupt-controller;
+			#interrupt-cells = <1>;
+			interrupt-parent = <&tb10x_ictl>;
+			interrupts = <27 1>;
+			reg = <0xFF144000 0x1000>;
+			gpio-controller;
+			#gpio-cells = <1>;
+			gpio-base  = <10>;
+			gpio-pins = <&pctl_gpio_e>;
+		};
+		gpiof: gpio@FF145000 {
+			compatible = "abilis,tb10x-gpio";
+			interrupt-controller;
+			#interrupt-cells = <1>;
+			interrupt-parent = <&tb10x_ictl>;
+			interrupts = <27 1>;
+			reg = <0xFF145000 0x1000>;
+			gpio-controller;
+			#gpio-cells = <1>;
+			gpio-base  = <13>;
+			gpio-pins = <&pctl_gpio_f>;
+		};
+		gpiog: gpio@FF146000 {
+			compatible = "abilis,tb10x-gpio";
+			interrupt-controller;
+			#interrupt-cells = <1>;
+			interrupt-parent = <&tb10x_ictl>;
+			interrupts = <27 1>;
+			reg = <0xFF146000 0x1000>;
+			gpio-controller;
+			#gpio-cells = <1>;
+			gpio-base  = <15>;
+			gpio-pins = <&pctl_gpio_g>;
+		};
+		gpioh: gpio@FF147000 {
+			compatible = "abilis,tb10x-gpio";
+			interrupt-controller;
+			#interrupt-cells = <1>;
+			interrupt-parent = <&tb10x_ictl>;
+			interrupts = <27 1>;
+			reg = <0xFF147000 0x1000>;
+			gpio-controller;
+			#gpio-cells = <1>;
+			gpio-base  = <18>;
+			gpio-pins = <&pctl_gpio_h>;
+		};
+		gpioi: gpio@FF148000 {
+			compatible = "abilis,tb10x-gpio";
+			interrupt-controller;
+			#interrupt-cells = <1>;
+			interrupt-parent = <&tb10x_ictl>;
+			interrupts = <27 1>;
+			reg = <0xFF148000 0x1000>;
+			gpio-controller;
+			#gpio-cells = <1>;
+			gpio-base  = <20>;
+			gpio-pins = <&pctl_gpio_i>;
+		};
+		gpioj: gpio@FF149000 {
+			compatible = "abilis,tb10x-gpio";
+			interrupt-controller;
+			#interrupt-cells = <1>;
+			interrupt-parent = <&tb10x_ictl>;
+			interrupts = <27 1>;
+			reg = <0xFF149000 0x1000>;
+			gpio-controller;
+			#gpio-cells = <1>;
+			gpio-base  = <32>;
+			gpio-pins = <&pctl_gpio_j>;
+		};
+		gpiok: gpio@FF14a000 {
+			compatible = "abilis,tb10x-gpio";
+			interrupt-controller;
+			#interrupt-cells = <1>;
+			interrupt-parent = <&tb10x_ictl>;
+			interrupts = <27 1>;
+			reg = <0xFF14A000 0x1000>;
+			gpio-controller;
+			#gpio-cells = <1>;
+			gpio-base  = <64>;
+			gpio-pins = <&pctl_gpio_k>;
+		};
+		gpiol: gpio@FF14b000 {
+			compatible = "abilis,tb10x-gpio";
+			interrupt-controller;
+			#interrupt-cells = <1>;
+			interrupt-parent = <&tb10x_ictl>;
+			interrupts = <27 1>;
+			reg = <0xFF14B000 0x1000>;
+			gpio-controller;
+			#gpio-cells = <1>;
+			gpio-base  = <86>;
+			gpio-pins = <&pctl_gpio_l>;
+		};
+		gpiom: gpio@FF14c000 {
+			compatible = "abilis,tb10x-gpio";
+			interrupt-controller;
+			#interrupt-cells = <1>;
+			interrupt-parent = <&tb10x_ictl>;
+			interrupts = <27 1>;
+			reg = <0xFF14C000 0x1000>;
+			gpio-controller;
+			#gpio-cells = <1>;
+			gpio-base  = <90>;
+			gpio-pins = <&pctl_gpio_m>;
+		};
+		gpion: gpio@FF14d000 {
+			compatible = "abilis,tb10x-gpio";
+			interrupt-controller;
+			#interrupt-cells = <1>;
+			interrupt-parent = <&tb10x_ictl>;
+			interrupts = <27 1>;
+			reg = <0xFF14D000 0x1000>;
+			gpio-controller;
+			#gpio-cells = <1>;
+			gpio-base  = <94>;
+			gpio-pins = <&pctl_gpio_n>;
+		};
+	};
+};