Merge tag 'fixes-nc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC low-priority fixes from Olof Johansson:
 "This branch contains a handful of fixes for various platforms that
  weren't serious enough to be included in late 3.11-rc releases.  Most
  of them are for minor cleanups and cosmetic fixes.

  There's also a bit of code removal here, one board file removal for
  clps711x, and removal of some legacy device creation on OMAP2+"

* tag 'fixes-nc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (25 commits)
  ARM: OMAP2: use 'int' instead of 'unsigned' for variable 'gpmc_irq_start'
  ARM: OMAP2: remove useless variable 'ret'
  ARM: OMAP: dma: fix error return code in omap_system_dma_probe()
  ARM: OMAP2+: fix wrong address when loading PRM_FRAC_INCREMENTOR_DENUMERATOR_RELOAD
  ARM: OMAP2+: am33xx-restart: trigger warm reset on omap2+ boards
  ARM: OMAP2: Use a consistent AM33XX SoC option description
  ARM: OMAP2+: Remove legacy device creation for McPDM and DMIC
  ARM: clps711x: edb7211: Remove extra iotable_init() call
  ARM: clps711x: autcpu12: Remove incorrect config checking
  ARM: clps711x: Drop fortunet board support
  ARM: clps711x: Remove the special name for the syscon driver
  ARM: dts: Fix memory node in skeleton64.dtsi
  ARM: Keystone: Convert device tree file to use IRQ defines
  ARM: keystone: use #include to include skeleton.dtsi
  ARM: keystone: Drop the un-necessary dsb from keystone_cpu_smc()
  ARM: Keystone: No need to preserve r12 across smc call
  ARM: keystone: remove redundant smp_init_cpus definition
  ARM: keystone: drop useless HAVE_SCHED_CLOCK
  ARM: dove: fix missing __init section of dove_mpp_gpio_mode
  ARM: shmobile: armadillo800eva-reference: fix compiler warning
  ...

1 files changed, 39 insertions, 4 deletions

diff --git a/arch/arm/boot/compressed/head-shmobile.S b/arch/arm/boot/compressed/head-shmobile.S
index e2d636336b7c..e7f80928949c 100644
--- a/arch/arm/boot/compressed/head-shmobile.S
+++ b/arch/arm/boot/compressed/head-shmobile.S
@@ -55,12 +55,47 @@ __tmp_stack:
 __continue:
 #endif /* CONFIG_ZBOOT_ROM_MMC || CONFIG_ZBOOT_ROM_SH_MOBILE_SDHI */
 
-	/* Set board ID necessary for boot */
-	ldr	r7, 1f				@ Set machine type register
-	mov	r8, #0				@ pass null pointer as atag
+	adr	r0, dtb_info
+	ldmia	r0, {r1, r3, r4, r5, r7}
+
+	sub	r0, r0, r1		@ calculate the delta offset
+	add	r5, r5, r0		@ _edata
+
+	ldr	lr, [r5, #0]		@ check if valid DTB is present
+	cmp	lr, r3
+	bne	0f
+
+	add	r9, r7, #31		@ rounded up to a multiple
+	bic	r9, r9, #31		@ ... of 32 bytes
+
+	add	r6, r9, r5		@ copy from _edata
+	add	r9, r9, r4		@ to MEMORY_START
+
+1:	ldmdb	r6!, {r0 - r3, r10 - r12, lr}
+	cmp	r6, r5
+	stmdb	r9!, {r0 - r3, r10 - r12, lr}
+	bhi	1b
+
+	/* Success: Zero board ID, pointer to start of memory for atag/dtb */
+	mov	r7, #0
+	mov	r8, r4
 	b	2f
 
-1 :	.long MACH_TYPE
+	.align	2
+dtb_info:
+	.word	dtb_info
+#ifndef __ARMEB__
+	.word	0xedfe0dd0		@ sig is 0xd00dfeed big endian
+#else
+	.word	0xd00dfeed
+#endif
+	.word	MEMORY_START
+	.word	_edata
+	.word	0x4000			@ maximum DTB size
+0:
+	/* Failure: Zero board ID, NULL atag/dtb */
+	mov 	r7, #0
+	mov	r8, #0			@ pass null pointer as atag
 2 :
 
 #endif /* CONFIG_ZBOOT_ROM */