Merge tag 'armsoc-multiplatform' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC multiplatform code updates from Arnd Bergmann:
 "This branch is the culmination of 5 years of effort to bring the ARMv6
  and ARMv7 platforms together such that they can all be enabled and
  boot the same kernel.  It has been a tremendous amount of cleanup and
  refactoring by a huge number of people, and creation of several new
  (and major) subsystems to better abstract out all the platform details
  in an appropriate manner.

  The bulk of this branch is a large patchset from Arnd that brings
  several of the more minor and older platforms we have closer to
  multiplatform support.  Among these are MMP, S3C64xx, Orion5x, mv78xx0
  and realview Much of this is moving around header files from old mach
  directories, but there are also some cleanup patches of debug_ll
  (lowlevel debug per-platform options) and other parts.

  Linus Walleij also has some patchs to clean up the older ARM Realview
  platforms by finally introducing DT support, and Rob Herring has some
  for ARM Versatile which is now DT-only.  Both of these platforms are
  now multiplatform.

  Finally, a couple of patches from Russell for Dove PMU, and a fix from
  Valentin Rothberg for Exynos ADC, which were rebased on top of the
  series to avoid conflicts"

* tag 'armsoc-multiplatform' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (75 commits)
  ARM: realview: don't select SMP_ON_UP for UP builds
  ARM: s3c: simplify s3c_irqwake_{e,}intallow definition
  ARM: s3c64xx: fix pm-debug compilation
  iio: exynos-adc: fix irqf_oneshot.cocci warnings
  ARM: realview: build realview-dt SMP support only when used
  ARM: realview: select apropriate targets
  ARM: realview: clean up header files
  ARM: realview: make all header files local
  ARM: no longer make CPU targets visible separately
  ARM: integrator: use explicit core module options
  ARM: realview: enable multiplatform
  ARM: make default platform work for NOMMU
  ARM: debug-ll: move DEBUG_LL_UART_EFM32 to correct Kconfig location
  ARM: defconfig: use correct debug_ll settings
  ARM: versatile: convert to multi-platform
  ARM: versatile: merge mach code into a single file
  ARM: versatile: switch to DT only booting and remove legacy code
  ARM: versatile: add DT based PCI detection
  ARM: pxa: mark ezx structures as __maybe_unused
  ARM: pxa: mark raumfeld init functions as __maybe_unused
  ...

2 files changed, 61 insertions, 3 deletions

diff --git a/arch/arm/include/asm/cputype.h b/arch/arm/include/asm/cputype.h
index 85e374f873ac..b23c6c81c9ad 100644
--- a/arch/arm/include/asm/cputype.h
+++ b/arch/arm/include/asm/cputype.h
@@ -228,10 +228,26 @@ static inline int cpu_is_xsc3(void)
 }
 #endif
 
-#if !defined(CONFIG_CPU_XSCALE) && !defined(CONFIG_CPU_XSC3)
-#define	cpu_is_xscale()	0
+#if !defined(CONFIG_CPU_XSCALE) && !defined(CONFIG_CPU_XSC3) && \
+    !defined(CONFIG_CPU_MOHAWK)
+#define	cpu_is_xscale_family() 0
 #else
-#define	cpu_is_xscale()	1
+static inline int cpu_is_xscale_family(void)
+{
+	unsigned int id;
+	id = read_cpuid_id() & 0xffffe000;
+
+	switch (id) {
+	case 0x69052000: /* Intel XScale 1 */
+	case 0x69054000: /* Intel XScale 2 */
+	case 0x69056000: /* Intel XScale 3 */
+	case 0x56056000: /* Marvell XScale 3 */
+	case 0x56158000: /* Marvell Mohawk */
+		return 1;
+	}
+
+	return 0;
+}
 #endif
 
 /*
diff --git a/arch/arm/include/debug/dc21285.S b/arch/arm/include/debug/dc21285.S
new file mode 100644
index 000000000000..02247f313e94
--- /dev/null
+++ b/arch/arm/include/debug/dc21285.S
@@ -0,0 +1,42 @@
+/* arch/arm/mach-footbridge/include/mach/debug-macro.S
+ *
+ * Debugging macro include header
+ *
+ *  Copyright (C) 1994-1999 Russell King
+ *  Moved from linux/arch/arm/kernel/debug.S by Ben Dooks
+ *
+ * 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.
+ *
+*/
+
+#include <asm/hardware/dec21285.h>
+
+#include <mach/hardware.h>
+	/* For EBSA285 debugging */
+		.equ	dc21285_high, ARMCSR_BASE & 0xff000000
+		.equ	dc21285_low,  ARMCSR_BASE & 0x00ffffff
+
+		.macro	addruart, rp, rv, tmp
+		.if	dc21285_low
+		mov	\rp, #dc21285_low
+		.else
+		mov	\rp, #0
+		.endif
+		orr	\rv, \rp, #dc21285_high
+		orr	\rp, \rp, #0x42000000
+		.endm
+
+		.macro	senduart,rd,rx
+		str	\rd, [\rx, #0x160]	@ UARTDR
+		.endm
+
+		.macro	busyuart,rd,rx
+1001:		ldr	\rd, [\rx, #0x178]	@ UARTFLG
+		tst	\rd, #1 << 3
+		bne	1001b
+		.endm
+
+		.macro	waituart,rd,rx
+		.endm