Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel…

…/git/vapier/blackfin

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/vapier/blackfin: (32 commits)
  Blackfin: gpio: add a debounce stub
  Blackfin: update defconfigs
  Blackfin: remove CONFIG_MEM_GENERIC_BOARD
  Blackfin: dpmc: punt unnecessary RTC_ISTAT clearing
  Blackfin: unify rotary encoder bitmasks
  Blackfin: unify SDH/RSI bitmasks
  Blackfin: BF54x: tweak DMAC MMR naming to match other ports
  Blackfin: TWI: clean up the MMR names
  Blackfin: add EVT_OVERRIDE/IPRIO core MMR helpers
  Blackfin: add support for dynamic ftrace
  Blackfin: add support for LZO compressed kernels
  Blackfin: portmux: fix peripheral map overflow when requesting pins
  Blackfin: document SPI CS limitations with CPHA=0
  Blackfin: remove useless and outdated documentation
  Blackfin: BF51x/BF52x: support GPIO Hysteresis/Schmitt Trigger options
  Blackfin: gpio/portmux: clean up whitespace corruption
  Blackfin: make sure mmiowb inserts a write barrier with SSYNC
  Blackfin: fix DMA/cache bug when resuming from suspend to RAM
  Blackfin: BF51x: fix handling of PH8 (the "internal" SPI0SEL4 pin)
  Blackfin: add a GPIO_DEFAULT_BOOT_SPI_CS
  ...

Documentation/blackfin/00-INDEX

@@ -1,11 +1,8 @@
 00-INDEX
 	- This file
 
-cachefeatures.txt
-	- Supported cache features.
-
-Filesystems
-	- Requirements for mounting the root file system.
-
-bfin-gpio-note.txt
+bfin-gpio-notes.txt
 	- Notes in developing/using bfin-gpio driver.
+
+bfin-spi-notes.txt
+	- Notes for using bfin spi bus driver.

Documentation/blackfin/bfin-spi-notes.txt

@@ -0,0 +1,14 @@
+SPI Chip Select behavior:
+
+With the Blackfin on-chip SPI peripheral, there is some logic tied to the CPHA
+bit whether the Slave Select Line is controlled by hardware (CPHA=0) or
+controlled by software (CPHA=1). However, the Linux SPI bus driver assumes that
+the Slave Select is always under software control and being asserted during
+the entire SPI transfer. - And not just bits_per_word duration.
+
+In most cases you can utilize SPI MODE_3 instead of MODE_0 to work-around this
+behavior. If your SPI slave device in question requires SPI MODE_0 or MODE_2
+timing, you can utilize the GPIO controlled SPI Slave Select option instead.
+
+You can even use the same pin whose peripheral role is a SSEL,
+but use it as a GPIO instead.

arch/blackfin/Kconfig

@@ -25,13 +25,16 @@ config BLACKFIN
 	def_bool y
 	select HAVE_ARCH_KGDB
 	select HAVE_ARCH_TRACEHOOK
+	select HAVE_DYNAMIC_FTRACE
+	select HAVE_FTRACE_MCOUNT_RECORD
 	select HAVE_FUNCTION_GRAPH_TRACER
 	select HAVE_FUNCTION_TRACER
 	select HAVE_FUNCTION_TRACE_MCOUNT_TEST
 	select HAVE_IDE
 	select HAVE_KERNEL_GZIP if RAMKERNEL
 	select HAVE_KERNEL_BZIP2 if RAMKERNEL
 	select HAVE_KERNEL_LZMA if RAMKERNEL
+	select HAVE_KERNEL_LZO if RAMKERNEL
 	select HAVE_OPROFILE
 	select ARCH_WANT_OPTIONAL_GPIOLIB
 
@@ -328,11 +331,6 @@ config BF53x
 	depends on (BF531 || BF532 || BF533 || BF534 || BF536 || BF537)
 	default y
 
-config MEM_GENERIC_BOARD
-	bool
-	depends on GENERIC_BOARD
-	default y
-
 config MEM_MT48LC64M4A2FB_7E
 	bool
 	depends on (BFIN533_STAMP)
@@ -850,6 +848,18 @@ config CPLB_SWITCH_TAB_L1
 	  If enabled, the CPLB Switch Tables are linked
 	  into L1 data memory. (less latency)
 
+config CACHE_FLUSH_L1
+	bool "Locate cache flush funcs in L1 Inst Memory"
+	default y
+	help
+	  If enabled, the Blackfin cache flushing functions are linked
+	  into L1 instruction memory.
+
+	  Note that this might be required to address anomalies, but
+	  these functions are pretty small, so it shouldn't be too bad.
+	  If you are using a processor affected by an anomaly, the build
+	  system will double check for you and prevent it.
+
 config APP_STACK_L1
 	bool "Support locating application stack in L1 Scratch Memory"
 	default y

arch/blackfin/Makefile

@@ -140,7 +140,7 @@ archclean:
 
 INSTALL_PATH ?= /tftpboot
 boot := arch/$(ARCH)/boot
-BOOT_TARGETS = vmImage vmImage.bin vmImage.bz2 vmImage.gz vmImage.lzma vmImage.xip
+BOOT_TARGETS = vmImage vmImage.bin vmImage.bz2 vmImage.gz vmImage.lzma vmImage.lzo vmImage.xip
 PHONY += $(BOOT_TARGETS) install
 KBUILD_IMAGE := $(boot)/vmImage
 
@@ -158,6 +158,7 @@ define archhelp
   echo  '  vmImage.bz2     - Kernel-only image for U-Boot (arch/$(ARCH)/boot/vmImage.bz2)'
   echo  '* vmImage.gz      - Kernel-only image for U-Boot (arch/$(ARCH)/boot/vmImage.gz)'
   echo  '  vmImage.lzma    - Kernel-only image for U-Boot (arch/$(ARCH)/boot/vmImage.lzma)'
+  echo  '  vmImage.lzo     - Kernel-only image for U-Boot (arch/$(ARCH)/boot/vmImage.lzo)'
   echo  '  vmImage.xip     - XIP Kernel-only image for U-Boot (arch/$(ARCH)/boot/vmImage.xip)'
   echo  '  install         - Install kernel using'
   echo  '                     (your) ~/bin/$(INSTALLKERNEL) or'

arch/blackfin/boot/Makefile

@@ -8,8 +8,8 @@
 
 MKIMAGE := $(srctree)/scripts/mkuboot.sh
 
-targets := vmImage vmImage.bin vmImage.bz2 vmImage.gz vmImage.lzma vmImage.xip
-extra-y += vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 vmlinux.bin.lzma vmlinux.bin.xip
+targets := vmImage vmImage.bin vmImage.bz2 vmImage.gz vmImage.lzma vmImage.lzo vmImage.xip
+extra-y += vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 vmlinux.bin.lzma vmlinux.bin.lzo vmlinux.bin.xip
 
 UIMAGE_OPTS-y :=
 UIMAGE_OPTS-$(CONFIG_RAMKERNEL) += -a $(CONFIG_BOOT_LOAD)
@@ -33,6 +33,9 @@ $(obj)/vmlinux.bin.bz2: $(obj)/vmlinux.bin FORCE
 $(obj)/vmlinux.bin.lzma: $(obj)/vmlinux.bin FORCE
 	$(call if_changed,lzma)
 
+$(obj)/vmlinux.bin.lzo: $(obj)/vmlinux.bin FORCE
+	$(call if_changed,lzo)
+
 # The mkimage tool wants 64bytes prepended to the image
 quiet_cmd_mk_bin_xip = BIN     $@
       cmd_mk_bin_xip = ( printf '%64s' | tr ' ' '\377' ; cat $< ) > $@
@@ -51,13 +54,17 @@ $(obj)/vmImage.gz: $(obj)/vmlinux.bin.gz
 $(obj)/vmImage.lzma: $(obj)/vmlinux.bin.lzma
 	$(call if_changed,uimage,lzma)
 
+$(obj)/vmImage.lzo: $(obj)/vmlinux.bin.lzo
+	$(call if_changed,uimage,lzo)
+
 $(obj)/vmImage.xip: $(obj)/vmlinux.bin.xip
 	$(call if_changed,uimage,none)
 
 suffix-y                      := bin
 suffix-$(CONFIG_KERNEL_GZIP)  := gz
 suffix-$(CONFIG_KERNEL_BZIP2) := bz2
 suffix-$(CONFIG_KERNEL_LZMA)  := lzma
+suffix-$(CONFIG_KERNEL_LZO)   := lzo
 suffix-$(CONFIG_ROMKERNEL)    := xip
 
 $(obj)/vmImage: $(obj)/vmImage.$(suffix-y)