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, 71 insertions, 0 deletions

diff --git a/arch/arc/plat-tb10x/tb10x.c b/arch/arc/plat-tb10x/tb10x.c
new file mode 100644
index 000000000000..d3567691c7e1
--- /dev/null
+++ b/arch/arc/plat-tb10x/tb10x.c
@@ -0,0 +1,71 @@
+/*
+ * Abilis Systems TB10x platform initialisation
+ *
+ * Copyright (C) Abilis Systems 2012
+ *
+ * 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 <linux/init.h>
+#include <linux/of_platform.h>
+#include <linux/clk-provider.h>
+#include <linux/pinctrl/consumer.h>
+
+#include <asm/mach_desc.h>
+
+
+static void __init tb10x_platform_init(void)
+{
+	of_clk_init(NULL);
+	of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
+}
+
+static void __init tb10x_platform_late_init(void)
+{
+	struct device_node *dn;
+
+	/*
+	 * Pinctrl documentation recommends setting up the iomux here for
+	 * all modules which don't require control over the pins themselves.
+	 * Modules which need this kind of assistance are compatible with
+	 * "abilis,simple-pinctrl", i.e. we can easily iterate over them.
+	 * TODO: Does this recommended method work cleanly with pins required
+	 * by modules?
+	 */
+	for_each_compatible_node(dn, NULL, "abilis,simple-pinctrl") {
+		struct platform_device *pd = of_find_device_by_node(dn);
+		struct pinctrl *pctl;
+
+		pctl = pinctrl_get_select(&pd->dev, "abilis,simple-default");
+		if (IS_ERR(pctl)) {
+			int ret = PTR_ERR(pctl);
+			dev_err(&pd->dev, "Could not set up pinctrl: %d\n",
+				ret);
+		}
+	}
+}
+
+static const char *tb10x_compat[] __initdata = {
+	"abilis,arc-tb10x",
+	NULL,
+};
+
+MACHINE_START(TB10x, "tb10x")
+	.dt_compat	= tb10x_compat,
+	.init_machine	= tb10x_platform_init,
+	.init_late	= tb10x_platform_late_init,
+MACHINE_END