Merge branch 'for-rmk' of git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6 into devel

Documentation/arm/pxa/mfp.txt

@@ -0,0 +1,286 @@
+                 MFP Configuration for PXA2xx/PXA3xx Processors
+
+			Eric Miao <eric.miao@marvell.com>
+
+MFP stands for Multi-Function Pin, which is the pin-mux logic on PXA3xx and
+later PXA series processors.  This document describes the existing MFP API,
+and how board/platform driver authors could make use of it.
+
+ Basic Concept
+===============
+
+Unlike the GPIO alternate function settings on PXA25x and PXA27x, a new MFP
+mechanism is introduced from PXA3xx to completely move the pin-mux functions
+out of the GPIO controller. In addition to pin-mux configurations, the MFP
+also controls the low power state, driving strength, pull-up/down and event
+detection of each pin.  Below is a diagram of internal connections between
+the MFP logic and the remaining SoC peripherals:
+
+ +--------+
+ |        |--(GPIO19)--+
+ |  GPIO  |            |
+ |        |--(GPIO...) |
+ +--------+            |
+                       |       +---------+
+ +--------+            +------>|         |
+ |  PWM2  |--(PWM_OUT)-------->|   MFP   |
+ +--------+            +------>|         |-------> to external PAD
+                       | +---->|         |
+ +--------+            | | +-->|         |
+ |  SSP2  |---(TXD)----+ | |   +---------+
+ +--------+              | |
+                         | |
+ +--------+              | |
+ | Keypad |--(MKOUT4)----+ |
+ +--------+                |
+                           |
+ +--------+                |
+ |  UART2 |---(TXD)--------+
+ +--------+
+
+NOTE: the external pad is named as MFP_PIN_GPIO19, it doesn't necessarily
+mean it's dedicated for GPIO19, only as a hint that internally this pin
+can be routed from GPIO19 of the GPIO controller.
+
+To better understand the change from PXA25x/PXA27x GPIO alternate function
+to this new MFP mechanism, here are several key points:
+
+  1. GPIO controller on PXA3xx is now a dedicated controller, same as other
+     internal controllers like PWM, SSP and UART, with 128 internal signals
+     which can be routed to external through one or more MFPs (e.g. GPIO<0>
+     can be routed through either MFP_PIN_GPIO0 as well as MFP_PIN_GPIO0_2,
+     see arch/arm/mach-pxa/mach/include/mfp-pxa300.h)
+
+  2. Alternate function configuration is removed from this GPIO controller,
+     the remaining functions are pure GPIO-specific, i.e.
+
+       - GPIO signal level control
+       - GPIO direction control
+       - GPIO level change detection
+
+  3. Low power state for each pin is now controlled by MFP, this means the
+     PGSRx registers on PXA2xx are now useless on PXA3xx
+
+  4. Wakeup detection is now controlled by MFP, PWER does not control the
+     wakeup from GPIO(s) any more, depending on the sleeping state, ADxER
+     (as defined in pxa3xx-regs.h) controls the wakeup from MFP
+
+NOTE: with such a clear separation of MFP and GPIO, by GPIO<xx> we normally
+mean it is a GPIO signal, and by MFP<xxx> or pin xxx, we mean a physical
+pad (or ball).
+
+ MFP API Usage
+===============
+
+For board code writers, here are some guidelines:
+
+1. include ONE of the following header files in your <board>.c:
+
+   - #include <mach/mfp-pxa25x.h>
+   - #include <mach/mfp-pxa27x.h>
+   - #include <mach/mfp-pxa300.h>
+   - #include <mach/mfp-pxa320.h>
+   - #include <mach/mfp-pxa930.h>
+
+   NOTE: only one file in your <board>.c, depending on the processors used,
+   because pin configuration definitions may conflict in these file (i.e.
+   same name, different meaning and settings on different processors). E.g.
+   for zylonite platform, which support both PXA300/PXA310 and PXA320, two
+   separate files are introduced: zylonite_pxa300.c and zylonite_pxa320.c
+   (in addition to handle MFP configuration differences, they also handle
+   the other differences between the two combinations).
+
+   NOTE: PXA300 and PXA310 are almost identical in pin configurations (with
+   PXA310 supporting some additional ones), thus the difference is actually
+   covered in a single mfp-pxa300.h.
+
+2. prepare an array for the initial pin configurations, e.g.:
+
+   static unsigned long mainstone_pin_config[] __initdata = {
+	/* Chip Select */
+	GPIO15_nCS_1,
+
+	/* LCD - 16bpp Active TFT */
+	GPIOxx_TFT_LCD_16BPP,
+	GPIO16_PWM0_OUT,	/* Backlight */
+
+	/* MMC */
+	GPIO32_MMC_CLK,
+	GPIO112_MMC_CMD,
+	GPIO92_MMC_DAT_0,
+	GPIO109_MMC_DAT_1,
+	GPIO110_MMC_DAT_2,
+	GPIO111_MMC_DAT_3,
+
+	...
+
+	/* GPIO */
+	GPIO1_GPIO | WAKEUP_ON_EDGE_BOTH,
+   };
+
+   a) once the pin configurations are passed to pxa{2xx,3xx}_mfp_config(),
+   and written to the actual registers, they are useless and may discard,
+   adding '__initdata' will help save some additional bytes here.
+
+   b) when there is only one possible pin configurations for a component,
+   some simplified definitions can be used, e.g. GPIOxx_TFT_LCD_16BPP on
+   PXA25x and PXA27x processors
+
+   c) if by board design, a pin can be configured to wake up the system
+   from low power state, it can be 'OR'ed with any of:
+
+      WAKEUP_ON_EDGE_BOTH
+      WAKEUP_ON_EDGE_RISE
+      WAKEUP_ON_EDGE_FALL
+      WAKEUP_ON_LEVEL_HIGH - specifically for enabling of keypad GPIOs,
+
+   to indicate that this pin has the capability of wake-up the system,
+   and on which edge(s). This, however, doesn't necessarily mean the
+   pin _will_ wakeup the system, it will only when set_irq_wake() is
+   invoked with the corresponding GPIO IRQ (GPIO_IRQ(xx) or gpio_to_irq())
+   and eventually calls gpio_set_wake() for the actual register setting.
+
+   d) although PXA3xx MFP supports edge detection on each pin, the
+   internal logic will only wakeup the system when those specific bits
+   in ADxER registers are set, which can be well mapped to the
+   corresponding peripheral, thus set_irq_wake() can be called with 
+   the peripheral IRQ to enable the wakeup.
+
+
+ MFP on PXA3xx
+===============
+
+Every external I/O pad on PXA3xx (excluding those for special purpose) has
+one MFP logic associated, and is controlled by one MFP register (MFPR).
+
+The MFPR has the following bit definitions (for PXA300/PXA310/PXA320):
+
+ 31                        16 15 14 13 12 11 10  9  8  7  6  5  4  3  2  1  0
+  +-------------------------+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
+  |         RESERVED        |PS|PU|PD|  DRIVE |SS|SD|SO|EC|EF|ER|--| AF_SEL |
+  +-------------------------+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
+
+  Bit 3:   RESERVED
+  Bit 4:   EDGE_RISE_EN - enable detection of rising edge on this pin
+  Bit 5:   EDGE_FALL_EN - enable detection of falling edge on this pin
+  Bit 6:   EDGE_CLEAR   - disable edge detection on this pin
+  Bit 7:   SLEEP_OE_N   - enable outputs during low power modes
+  Bit 8:   SLEEP_DATA   - output data on the pin during low power modes
+  Bit 9:   SLEEP_SEL    - selection control for low power modes signals
+  Bit 13:  PULLDOWN_EN  - enable the internal pull-down resistor on this pin
+  Bit 14:  PULLUP_EN    - enable the internal pull-up resistor on this pin
+  Bit 15:  PULL_SEL     - pull state controlled by selected alternate function
+                          (0) or by PULL{UP,DOWN}_EN bits (1)
+
+  Bit 0 - 2: AF_SEL - alternate function selection, 8 possibilities, from 0-7
+  Bit 10-12: DRIVE  - drive strength and slew rate
+			0b000 - fast 1mA
+			0b001 - fast 2mA
+			0b002 - fast 3mA
+			0b003 - fast 4mA
+			0b004 - slow 6mA
+			0b005 - fast 6mA
+			0b006 - slow 10mA
+			0b007 - fast 10mA
+
+ MFP Design for PXA2xx/PXA3xx
+==============================
+
+Due to the difference of pin-mux handling between PXA2xx and PXA3xx, a unified
+MFP API is introduced to cover both series of processors.
+
+The basic idea of this design is to introduce definitions for all possible pin
+configurations, these definitions are processor and platform independent, and
+the actual API invoked to convert these definitions into register settings and
+make them effective there-after.
+
+  Files Involved
+  --------------
+
+  - arch/arm/mach-pxa/include/mach/mfp.h
+  
+  for
+    1. Unified pin definitions - enum constants for all configurable pins
+    2. processor-neutral bit definitions for a possible MFP configuration
+
+  - arch/arm/mach-pxa/include/mach/mfp-pxa3xx.h
+
+  for PXA3xx specific MFPR register bit definitions and PXA3xx common pin
+  configurations
+
+  - arch/arm/mach-pxa/include/mach/mfp-pxa2xx.h
+
+  for PXA2xx specific definitions and PXA25x/PXA27x common pin configurations
+
+  - arch/arm/mach-pxa/include/mach/mfp-pxa25x.h
+    arch/arm/mach-pxa/include/mach/mfp-pxa27x.h
+    arch/arm/mach-pxa/include/mach/mfp-pxa300.h
+    arch/arm/mach-pxa/include/mach/mfp-pxa320.h
+    arch/arm/mach-pxa/include/mach/mfp-pxa930.h
+
+  for processor specific definitions
+
+  - arch/arm/mach-pxa/mfp-pxa3xx.c
+  - arch/arm/mach-pxa/mfp-pxa2xx.c
+
+  for implementation of the pin configuration to take effect for the actual
+  processor.
+
+  Pin Configuration
+  -----------------
+
+  The following comments are copied from mfp.h (see the actual source code
+  for most updated info)
+  
+  /*
+   * a possible MFP configuration is represented by a 32-bit integer
+   *
+   * bit  0.. 9 - MFP Pin Number (1024 Pins Maximum)
+   * bit 10..12 - Alternate Function Selection
+   * bit 13..15 - Drive Strength
+   * bit 16..18 - Low Power Mode State
+   * bit 19..20 - Low Power Mode Edge Detection
+   * bit 21..22 - Run Mode Pull State
+   *
+   * to facilitate the definition, the following macros are provided
+   *
+   * MFP_CFG_DEFAULT - default MFP configuration value, with
+   * 		  alternate function = 0,
+   * 		  drive strength = fast 3mA (MFP_DS03X)
+   * 		  low power mode = default
+   * 		  edge detection = none
+   *
+   * MFP_CFG	- default MFPR value with alternate function
+   * MFP_CFG_DRV	- default MFPR value with alternate function and
+   * 		  pin drive strength
+   * MFP_CFG_LPM	- default MFPR value with alternate function and
+   * 		  low power mode
+   * MFP_CFG_X	- default MFPR value with alternate function,
+   * 		  pin drive strength and low power mode
+   */
+
+   Examples of pin configurations are:
+
+   #define GPIO94_SSP3_RXD		MFP_CFG_X(GPIO94, AF1, DS08X, FLOAT)
+
+   which reads GPIO94 can be configured as SSP3_RXD, with alternate function
+   selection of 1, driving strength of 0b101, and a float state in low power
+   modes.
+
+   NOTE: this is the default setting of this pin being configured as SSP3_RXD
+   which can be modified a bit in board code, though it is not recommended to
+   do so, simply because this default setting is usually carefully encoded,
+   and is supposed to work in most cases.
+
+  Register Settings
+  -----------------
+
+   Register settings on PXA3xx for a pin configuration is actually very
+   straight-forward, most bits can be converted directly into MFPR value
+   in a easier way. Two sets of MFPR values are calculated: the run-time
+   ones and the low power mode ones, to allow different settings.
+
+   The conversion from a generic pin configuration to the actual register
+   settings on PXA2xx is a bit complicated: many registers are involved,
+   including GAFRx, GPDRx, PGSRx, PWER, PKWR, PFER and PRER. Please see
+   mfp-pxa2xx.c for how the conversion is made.

Documentation/fb/pxafb.txt

@@ -5,9 +5,13 @@ The driver supports the following options, either via
 options=<OPTIONS> when modular or video=pxafb:<OPTIONS> when built in.
 
 For example:
-	modprobe pxafb options=mode:640x480-8,passive
+	modprobe pxafb options=vmem:2M,mode:640x480-8,passive
 or on the kernel command line
-	video=pxafb:mode:640x480-8,passive
+	video=pxafb:vmem:2M,mode:640x480-8,passive
+
+vmem: VIDEO_MEM_SIZE
+	Amount of video memory to allocate (can be suffixed with K or M
+	for kilobytes or megabytes)
 
 mode:XRESxYRES[-BPP]
 	XRES == LCCR1_PPL + 1
@@ -52,3 +56,87 @@ outputen:POLARITY
 pixclockpol:POLARITY
 	pixel clock polarity
 	0 => falling edge, 1 => rising edge
+
+
+Overlay Support for PXA27x and later LCD controllers
+====================================================
+
+  PXA27x and later processors support overlay1 and overlay2 on-top of the
+  base framebuffer (although under-neath the base is also possible). They
+  support palette and no-palette RGB formats, as well as YUV formats (only
+  available on overlay2). These overlays have dedicated DMA channels and
+  behave in a similar way as a framebuffer.
+
+  However, there are some differences between these overlay framebuffers
+  and normal framebuffers, as listed below:
+
+  1. overlay can start at a 32-bit word aligned position within the base
+     framebuffer, which means they have a start (x, y). This information
+     is encoded into var->nonstd (no, var->xoffset and var->yoffset are
+     not for such purpose).
+
+  2. overlay framebuffer is allocated dynamically according to specified
+     'struct fb_var_screeninfo', the amount is decided by:
+
+        var->xres_virtual * var->yres_virtual * bpp
+
+     bpp = 16 -- for RGB565 or RGBT555
+         = 24 -- for YUV444 packed
+         = 24 -- for YUV444 planar
+	 = 16 -- for YUV422 planar (1 pixel = 1 Y + 1/2 Cb + 1/2 Cr)
+	 = 12 -- for YUV420 planar (1 pixel = 1 Y + 1/4 Cb + 1/4 Cr)
+
+     NOTE:
+
+     a. overlay does not support panning in x-direction, thus
+        var->xres_virtual will always be equal to var->xres
+
+     b. line length of overlay(s) must be on a 32-bit word boundary,
+        for YUV planar modes, it is a requirement for the component
+	with minimum bits per pixel,  e.g. for YUV420, Cr component
+	for one pixel is actually 2-bits, it means the line length
+	should be a multiple of 16-pixels
+
+     c. starting horizontal position (XPOS) should start on a 32-bit
+        word boundary, otherwise the fb_check_var() will just fail.
+
+     d. the rectangle of the overlay should be within the base plane,
+        otherwise fail
+
+     Applications should follow the sequence below to operate an overlay
+     framebuffer:
+
+         a. open("/dev/fb[1-2]", ...)
+	 b. ioctl(fd, FBIOGET_VSCREENINFO, ...)
+	 c. modify 'var' with desired parameters:
+	    1) var->xres and var->yres
+	    2) larger var->yres_virtual if more memory is required,
+	       usually for double-buffering
+	    3) var->nonstd for starting (x, y) and color format
+	    4) var->{red, green, blue, transp} if RGB mode is to be used
+	 d. ioctl(fd, FBIOPUT_VSCREENINFO, ...)
+	 e. ioctl(fd, FBIOGET_FSCREENINFO, ...)
+	 f. mmap
+	 g. ...
+
+  3. for YUV planar formats, these are actually not supported within the
+     framebuffer framework, application has to take care of the offsets
+     and lengths of each component within the framebuffer.
+
+  4. var->nonstd is used to pass starting (x, y) position and color format,
+     the detailed bit fields are shown below:
+
+    31                23  20         10          0
+     +-----------------+---+----------+----------+
+     |  ... unused ... |FOR|   XPOS   |   YPOS   |
+     +-----------------+---+----------+----------+
+
+     FOR  - color format, as defined by OVERLAY_FORMAT_* in pxafb.h
+            0 - RGB
+	    1 - YUV444 PACKED
+	    2 - YUV444 PLANAR
+	    3 - YUV422 PLANAR
+	    4 - YUR420 PLANAR
+
+     XPOS - starting horizontal position
+     YPOS - starting vertical position

arch/arm/mach-pxa/generic.c

@@ -24,6 +24,7 @@
 #include <asm/system.h>
 #include <asm/pgtable.h>
 #include <asm/mach/map.h>
+#include <asm/mach-types.h>
 
 #include <mach/pxa-regs.h>
 #include <mach/reset.h>
@@ -39,6 +40,21 @@ void clear_reset_status(unsigned int mask)
 		pxa3xx_clear_reset_status(mask);
 }
 
+unsigned long get_clock_tick_rate(void)
+{
+	unsigned long clock_tick_rate;
+
+	if (cpu_is_pxa25x())
+		clock_tick_rate = 3686400;
+	else if (machine_is_mainstone())
+		clock_tick_rate = 3249600;
+	else
+		clock_tick_rate = 3250000;
+
+	return clock_tick_rate;
+}
+EXPORT_SYMBOL(get_clock_tick_rate);
+
 /*
  * Get the clock frequency as reflected by CCCR and the turbo flag.
  * We assume these values have been applied via a fcs.

arch/arm/mach-pxa/include/mach/hardware.h

@@ -291,6 +291,8 @@
  */
 extern unsigned int get_memclk_frequency_10khz(void);
 
+/* return the clock tick rate of the OS timer */
+extern unsigned long get_clock_tick_rate(void);
 #endif
 
 #if defined(CONFIG_MACH_ARMCORE) && defined(CONFIG_PCI)

arch/arm/mach-pxa/include/mach/mfp-pxa930.h

@@ -421,6 +421,7 @@
 #define GPIO20_PWM0		MFP_CFG_LPM(GPIO20, AF2, PULL_LOW)
 #define GPIO21_PWM2		MFP_CFG_LPM(GPIO21, AF3, PULL_LOW)
 #define GPIO22_PWM3		MFP_CFG_LPM(GPIO22, AF3, PULL_LOW)
+#define GPIO32_PWM0		MFP_CFG_LPM(GPIO32, AF4, PULL_LOW)
 
 /* CIR */
 #define GPIO46_CIR_OUT		MFP_CFG(GPIO46, AF1)

arch/arm/mach-pxa/include/mach/pxafb.h

@@ -113,6 +113,7 @@ struct pxafb_mach_info {
 	unsigned int num_modes;
 
 	unsigned int	lcd_conn;
+	unsigned long	video_mem_size;
 
 	u_int		fixed_modes:1,
 			cmap_inverse:1,

arch/arm/mach-pxa/include/mach/regs-lcd.h

@@ -12,27 +12,29 @@
 #define LCCR3		(0x00C)	/* LCD Controller Control Register 3 */
 #define LCCR4		(0x010)	/* LCD Controller Control Register 4 */
 #define LCCR5		(0x014)	/* LCD Controller Control Register 5 */
-#define DFBR0		(0x020)	/* DMA Channel 0 Frame Branch Register */
+#define LCSR		(0x038)	/* LCD Controller Status Register 0 */
-#define DFBR1		(0x024)	/* DMA Channel 1 Frame Branch Register */
+#define LCSR1		(0x034)	/* LCD Controller Status Register 1 */
-#define LCSR		(0x038)	/* LCD Controller Status Register */
 #define LIIDR		(0x03C)	/* LCD Controller Interrupt ID Register */
 #define TMEDRGBR	(0x040)	/* TMED RGB Seed Register */
 #define TMEDCR		(0x044)	/* TMED Control Register */
 
+#define FBR0		(0x020)	/* DMA Channel 0 Frame Branch Register */
+#define FBR1		(0x024)	/* DMA Channel 1 Frame Branch Register */
+#define FBR2		(0x028) /* DMA Channel 2 Frame Branch Register */
+#define FBR3		(0x02C) /* DMA Channel 2 Frame Branch Register */
+#define FBR4		(0x030) /* DMA Channel 2 Frame Branch Register */
+#define FBR5		(0x110) /* DMA Channel 2 Frame Branch Register */
+#define FBR6		(0x114) /* DMA Channel 2 Frame Branch Register */
+
+#define OVL1C1		(0x050)	/* Overlay 1 Control Register 1 */
+#define OVL1C2		(0x060)	/* Overlay 1 Control Register 2 */
+#define OVL2C1		(0x070)	/* Overlay 2 Control Register 1 */
+#define OVL2C2		(0x080)	/* Overlay 2 Control Register 2 */
+
 #define CMDCR		(0x100)	/* Command Control Register */
 #define PRSR		(0x104)	/* Panel Read Status Register */
 
-#define LCCR3_1BPP	(0 << 24)
+#define LCCR3_BPP(x)	((((x) & 0x7) << 24) | (((x) & 0x8) ? (1 << 29) : 0))
-#define LCCR3_2BPP	(1 << 24)
-#define LCCR3_4BPP	(2 << 24)
-#define LCCR3_8BPP	(3 << 24)
-#define LCCR3_16BPP	(4 << 24)
-#define LCCR3_18BPP	(5 << 24)
-#define LCCR3_18BPP_P	(6 << 24)
-#define LCCR3_19BPP	(7 << 24)
-#define LCCR3_19BPP_P	(1 << 29)
-#define LCCR3_24BPP	((1 << 29) | (1 << 24))
-#define LCCR3_25BPP	((1 << 29) | (2 << 24))
 
 #define LCCR3_PDFOR_0	(0 << 30)
 #define LCCR3_PDFOR_1	(1 << 30)
@@ -42,19 +44,16 @@
 #define LCCR4_PAL_FOR_0	(0 << 15)
 #define LCCR4_PAL_FOR_1	(1 << 15)
 #define LCCR4_PAL_FOR_2	(2 << 15)
+#define LCCR4_PAL_FOR_3	(3 << 15)
 #define LCCR4_PAL_FOR_MASK	(3 << 15)
 
 #define FDADR0		(0x200)	/* DMA Channel 0 Frame Descriptor Address Register */
-#define FSADR0		(0x204)	/* DMA Channel 0 Frame Source Address Register */
-#define FIDR0		(0x208)	/* DMA Channel 0 Frame ID Register */
-#define LDCMD0		(0x20C)	/* DMA Channel 0 Command Register */
 #define FDADR1		(0x210)	/* DMA Channel 1 Frame Descriptor Address Register */
-#define FSADR1		(0x214)	/* DMA Channel 1 Frame Source Address Register */
+#define FDADR2		(0x220)	/* DMA Channel 2 Frame Descriptor Address Register */
-#define FIDR1		(0x218)	/* DMA Channel 1 Frame ID Register */
+#define FDADR3		(0x230)	/* DMA Channel 3 Frame Descriptor Address Register */
-#define LDCMD1		(0x21C)	/* DMA Channel 1 Command Register */
+#define FDADR4		(0x240)	/* DMA Channel 4 Frame Descriptor Address Register */
+#define FDADR5		(0x250)	/* DMA Channel 5 Frame Descriptor Address Register */
 #define FDADR6		(0x260) /* DMA Channel 6 Frame Descriptor Address Register */
-#define FSADR6		(0x264) /* DMA Channel 6 Frame Source Address Register */
-#define FIDR6		(0x268) /* DMA Channel 6 Frame ID Register */
 
 #define LCCR0_ENB	(1 << 0)	/* LCD Controller enable */
 #define LCCR0_CMS	(1 << 1)	/* Color/Monochrome Display Select */
@@ -126,9 +125,6 @@
 #define LCCR3_PCD	Fld (8, 0)	/* Pixel Clock Divisor */
 #define LCCR3_PixClkDiv(Div)	(((Div) << FShft (LCCR3_PCD)))
 
-#define LCCR3_BPP	Fld (3, 24)	/* Bit Per Pixel */
-#define LCCR3_Bpp(Bpp)	(((Bpp) << FShft (LCCR3_BPP)))
-
 #define LCCR3_ACB	Fld (8, 8)	/* AC Bias */
 #define LCCR3_Acb(Acb)	(((Acb) << FShft (LCCR3_ACB)))
 
@@ -157,8 +153,22 @@
 #define LCSR_RD_ST	(1 << 11)	/* read status */
 #define LCSR_CMD_INT	(1 << 12)	/* command interrupt */
 
+#define LCSR1_IU(x)	(1 << ((x) + 23)) /* Input FIFO underrun */
+#define LCSR1_BS(x)	(1 << ((x) + 15)) /* Branch Status */
+#define LCSR1_EOF(x)	(1 << ((x) + 7))  /* End of Frame Status */
+#define LCSR1_SOF(x)	(1 << ((x) - 1))  /* Start of Frame Status */
+
 #define LDCMD_PAL	(1 << 26)	/* instructs DMA to load palette buffer */
 
+/* overlay control registers */
+#define OVLxC1_PPL(x)	((((x) - 1) & 0x3ff) << 0)	/* Pixels Per Line */
+#define OVLxC1_LPO(x)	((((x) - 1) & 0x3ff) << 10)	/* Number of Lines */
+#define OVLxC1_BPP(x)	(((x) & 0xf) << 20)	/* Bits Per Pixel */
+#define OVLxC1_OEN	(1 << 31)		/* Enable bit for Overlay */
+#define OVLxC2_XPOS(x)	(((x) & 0x3ff) << 0)	/* Horizontal Position */
+#define OVLxC2_YPOS(x)	(((x) & 0x3ff) << 10)	/* Vertical Position */
+#define OVL2C2_PFOR(x)	(((x) & 0x7) << 20)	/* Pixel Format */
+
 /* smartpanel related */
 #define PRSR_DATA(x)	((x) & 0xff)	/* Panel Data */
 #define PRSR_A0		(1 << 8)	/* Read Data Source */

arch/arm/mach-pxa/include/mach/timex.h

@@ -10,6 +10,14 @@
  * published by the Free Software Foundation.
  */
 
+/* Various drivers are still using the constant of CLOCK_TICK_RATE, for
+ * those drivers to at least work, the definition is provided here.
+ *
+ * NOTE: this is no longer accurate when multiple processors and boards
+ * are selected, newer drivers should not depend on this any more.  Use
+ * either the clocksource/clockevent or get this at run-time by calling
+ * get_clock_tick_rate() (as defined in generic.c).
+ */
 
 #if defined(CONFIG_PXA25x)
 /* PXA250/210 timer base */

arch/arm/mach-pxa/tavorevb.c

@@ -18,12 +18,15 @@
 #include <linux/clk.h>
 #include <linux/gpio.h>
 #include <linux/smc91x.h>
+#include <linux/pwm_backlight.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
 #include <mach/hardware.h>
 #include <mach/pxa3xx-regs.h>
 #include <mach/mfp-pxa930.h>
+#include <mach/pxafb.h>
+#include <mach/pxa27x_keypad.h>
 
 #include "devices.h"
 #include "generic.h"
@@ -33,6 +36,45 @@ static mfp_cfg_t tavorevb_mfp_cfg[] __initdata = {
 	/* Ethernet */
 	DF_nCS1_nCS3,
 	GPIO47_GPIO,
+
+	/* LCD */
+	GPIO23_LCD_DD0,
+	GPIO24_LCD_DD1,
+	GPIO25_LCD_DD2,
+	GPIO26_LCD_DD3,
+	GPIO27_LCD_DD4,
+	GPIO28_LCD_DD5,
+	GPIO29_LCD_DD6,
+	GPIO44_LCD_DD7,
+	GPIO21_LCD_CS,
+	GPIO22_LCD_CS2,
+
+	GPIO17_LCD_FCLK_RD,
+	GPIO18_LCD_LCLK_A0,
+	GPIO19_LCD_PCLK_WR,
+
+	/* LCD Backlight */
+	GPIO43_PWM3,	/* primary backlight */
+	GPIO32_PWM0,	/* secondary backlight */
+
+	/* Keypad */
+	GPIO0_KP_MKIN_0,
+	GPIO2_KP_MKIN_1,
+	GPIO4_KP_MKIN_2,
+	GPIO6_KP_MKIN_3,
+	GPIO8_KP_MKIN_4,
+	GPIO10_KP_MKIN_5,
+	GPIO12_KP_MKIN_6,
+	GPIO1_KP_MKOUT_0,
+	GPIO3_KP_MKOUT_1,
+	GPIO5_KP_MKOUT_2,
+	GPIO7_KP_MKOUT_3,
+	GPIO9_KP_MKOUT_4,
+	GPIO11_KP_MKOUT_5,
+	GPIO13_KP_MKOUT_6,
+
+	GPIO14_KP_DKIN_2,
+	GPIO15_KP_DKIN_3,
 };
 
 #define TAVOREVB_ETH_PHYS	(0x14000000)
@@ -64,12 +106,382 @@ static struct platform_device smc91x_device = {
 	},
 };
 
+#if defined(CONFIG_KEYBOARD_PXA27x) || defined(CONFIG_KEYBOARD_PXA27x_MODULE)
+static unsigned int tavorevb_matrix_key_map[] = {
+	/* KEY(row, col, key_code) */
+	KEY(0, 4, KEY_A), KEY(0, 5, KEY_B), KEY(0, 6, KEY_C),
+	KEY(1, 4, KEY_E), KEY(1, 5, KEY_F), KEY(1, 6, KEY_G),
+	KEY(2, 4, KEY_I), KEY(2, 5, KEY_J), KEY(2, 6, KEY_K),
+	KEY(3, 4, KEY_M), KEY(3, 5, KEY_N), KEY(3, 6, KEY_O),
+	KEY(4, 5, KEY_R), KEY(4, 6, KEY_S),
+	KEY(5, 4, KEY_U), KEY(5, 4, KEY_V), KEY(5, 6, KEY_W),
+
+	KEY(6, 4, KEY_Y), KEY(6, 5, KEY_Z),
+
+	KEY(0, 3, KEY_0), KEY(2, 0, KEY_1), KEY(2, 1, KEY_2), KEY(2, 2, KEY_3),
+	KEY(2, 3, KEY_4), KEY(1, 0, KEY_5), KEY(1, 1, KEY_6), KEY(1, 2, KEY_7),
+	KEY(1, 3, KEY_8), KEY(0, 2, KEY_9),
+
+	KEY(6, 6, KEY_SPACE),
+	KEY(0, 0, KEY_KPASTERISK), 	/* * */
+	KEY(0, 1, KEY_KPDOT), 		/* # */
+
+	KEY(4, 1, KEY_UP),
+	KEY(4, 3, KEY_DOWN),
+	KEY(4, 0, KEY_LEFT),
+	KEY(4, 2, KEY_RIGHT),
+	KEY(6, 0, KEY_HOME),
+	KEY(3, 2, KEY_END),
+	KEY(6, 1, KEY_DELETE),
+	KEY(5, 2, KEY_BACK),
+	KEY(6, 3, KEY_CAPSLOCK),	/* KEY_LEFTSHIFT), */
+
+	KEY(4, 4, KEY_ENTER),		/* scroll push */
+	KEY(6, 2, KEY_ENTER),		/* keypad action */
+
+	KEY(3, 1, KEY_SEND),
+	KEY(5, 3, KEY_RECORD),
+	KEY(5, 0, KEY_VOLUMEUP),
+	KEY(5, 1, KEY_VOLUMEDOWN),
+
+	KEY(3, 0, KEY_F22),	/* soft1 */
+	KEY(3, 3, KEY_F23),	/* soft2 */
+};
+
+static struct pxa27x_keypad_platform_data tavorevb_keypad_info = {
+	.matrix_key_rows	= 7,
+	.matrix_key_cols	= 7,
+	.matrix_key_map		= tavorevb_matrix_key_map,
+	.matrix_key_map_size	= ARRAY_SIZE(tavorevb_matrix_key_map),
+	.debounce_interval	= 30,
+};
+
+static void __init tavorevb_init_keypad(void)
+{
+	pxa_set_keypad_info(&tavorevb_keypad_info);
+}
+#else
+static inline void tavorevb_init_keypad(void) {}
+#endif /* CONFIG_KEYBOARD_PXA27x || CONFIG_KEYBOARD_PXA27x_MODULE */
+
+#if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
+static struct platform_pwm_backlight_data tavorevb_backlight_data[] = {
+	[0] = {
+		/* primary backlight */
+		.pwm_id		= 2,
+		.max_brightness	= 100,
+		.dft_brightness	= 100,
+		.pwm_period_ns	= 100000,
+	},
+	[1] = {
+		/* secondary backlight */
+		.pwm_id		= 0,
+		.max_brightness	= 100,
+		.dft_brightness	= 100,
+		.pwm_period_ns	= 100000,
+	},
+};
+
+static struct platform_device tavorevb_backlight_devices[] = {
+	[0] = {
+		.name		= "pwm-backlight",
+		.id		= 0,
+		.dev		= {
+			.platform_data = &tavorevb_backlight_data[0],
+		},
+	},
+	[1] = {
+		.name		= "pwm-backlight",
+		.id		= 1,
+		.dev		= {
+			.platform_data = &tavorevb_backlight_data[1],
+		},
+	},
+};
+
+static uint16_t panel_init[] = {
+	/* DSTB OUT */
+	SMART_CMD(0x00),
+	SMART_CMD_NOOP,
+	SMART_DELAY(1),
+
+	SMART_CMD(0x00),
+	SMART_CMD_NOOP,
+	SMART_DELAY(1),
+
+	SMART_CMD(0x00),
+	SMART_CMD_NOOP,
+	SMART_DELAY(1),
+
+	/* STB OUT */
+	SMART_CMD(0x00),
+	SMART_CMD(0x1D),
+	SMART_DAT(0x00),
+	SMART_DAT(0x05),
+	SMART_DELAY(1),
+
+	/* P-ON Init sequence */
+	SMART_CMD(0x00), /* OSC ON */
+	SMART_CMD(0x00),
+	SMART_DAT(0x00),
+	SMART_DAT(0x01),
+	SMART_CMD(0x00),
+	SMART_CMD(0x01), /* SOURCE DRIVER SHIFT DIRECTION and display RAM setting */
+	SMART_DAT(0x01),
+	SMART_DAT(0x27),
+	SMART_CMD(0x00),
+	SMART_CMD(0x02), /* LINE INV */
+	SMART_DAT(0x02),
+	SMART_DAT(0x00),
+	SMART_CMD(0x00),
+	SMART_CMD(0x03), /* IF mode(1) */
+	SMART_DAT(0x01), /* 8bit smart mode(8-8),high speed write mode */
+	SMART_DAT(0x30),
+	SMART_CMD(0x07),
+	SMART_CMD(0x00), /* RAM Write Mode */
+	SMART_DAT(0x00),
+	SMART_DAT(0x03),
+	SMART_CMD(0x00),
+
+	/* DISPLAY Setting,  262K, fixed(NO scroll), no split screen */
+	SMART_CMD(0x07),
+	SMART_DAT(0x40), /* 16/18/19 BPP */
+	SMART_DAT(0x00),
+	SMART_CMD(0x00),
+	SMART_CMD(0x08), /* BP, FP Seting, BP=2H, FP=3H */
+	SMART_DAT(0x03),
+	SMART_DAT(0x02),
+	SMART_CMD(0x00),
+	SMART_CMD(0x0C), /* IF mode(2), using internal clock & MPU */
+	SMART_DAT(0x00),
+	SMART_DAT(0x00),
+	SMART_CMD(0x00),
+	SMART_CMD(0x0D), /* Frame setting, 1Min. Frequence, 16CLK */
+	SMART_DAT(0x00),
+	SMART_DAT(0x10),
+	SMART_CMD(0x00),
+	SMART_CMD(0x12), /* Timing(1),ASW W=4CLK, ASW ST=1CLK */
+	SMART_DAT(0x03),
+	SMART_DAT(0x02),
+	SMART_CMD(0x00),
+	SMART_CMD(0x13), /* Timing(2),OEV ST=0.5CLK, OEV ED=1CLK */
+	SMART_DAT(0x01),
+	SMART_DAT(0x02),
+	SMART_CMD(0x00),
+	SMART_CMD(0x14), /* Timing(3), ASW HOLD=0.5CLK */
+	SMART_DAT(0x00),
+	SMART_DAT(0x00),
+	SMART_CMD(0x00),
+	SMART_CMD(0x15), /* Timing(4), CKV ST=0CLK, CKV ED=1CLK */
+	SMART_DAT(0x20),
+	SMART_DAT(0x00),
+	SMART_CMD(0x00),
+	SMART_CMD(0x1C),
+	SMART_DAT(0x00),
+	SMART_DAT(0x00),
+	SMART_CMD(0x03),
+	SMART_CMD(0x00),
+	SMART_DAT(0x04),
+	SMART_DAT(0x03),
+	SMART_CMD(0x03),
+	SMART_CMD(0x01),
+	SMART_DAT(0x03),
+	SMART_DAT(0x04),
+	SMART_CMD(0x03),
+	SMART_CMD(0x02),
+	SMART_DAT(0x04),
+	SMART_DAT(0x03),
+	SMART_CMD(0x03),
+	SMART_CMD(0x03),
+	SMART_DAT(0x03),
+	SMART_DAT(0x03),
+	SMART_CMD(0x03),
+	SMART_CMD(0x04),
+	SMART_DAT(0x01),
+	SMART_DAT(0x01),
+	SMART_CMD(0x03),
+	SMART_CMD(0x05),
+	SMART_DAT(0x00),
+	SMART_DAT(0x00),
+	SMART_CMD(0x04),
+	SMART_CMD(0x02),
+	SMART_DAT(0x00),
+	SMART_DAT(0x00),
+	SMART_CMD(0x04),
+	SMART_CMD(0x03),
+	SMART_DAT(0x01),
+	SMART_DAT(0x3F),
+	SMART_DELAY(0),
+
+	/* DISP RAM setting: 240*320 */
+	SMART_CMD(0x04), /* HADDR, START 0 */
+	SMART_CMD(0x06),
+	SMART_DAT(0x00),
+	SMART_DAT(0x00), /* x1,3 */
+	SMART_CMD(0x04), /* HADDR,  END   4 */
+	SMART_CMD(0x07),
+	SMART_DAT(0x00),
+	SMART_DAT(0xEF), /* x2, 7 */
+	SMART_CMD(0x04), /* VADDR, START 8 */
+	SMART_CMD(0x08),
+	SMART_DAT(0x00), /* y1, 10 */
+	SMART_DAT(0x00), /* y1, 11 */
+	SMART_CMD(0x04), /* VADDR, END 12 */
+	SMART_CMD(0x09),
+	SMART_DAT(0x01), /* y2, 14 */
+	SMART_DAT(0x3F), /* y2, 15 */
+	SMART_CMD(0x02), /* RAM ADDR SETTING 16 */
+	SMART_CMD(0x00),
+	SMART_DAT(0x00),
+	SMART_DAT(0x00), /* x1, 19 */
+	SMART_CMD(0x02), /* RAM ADDR SETTING 20 */
+	SMART_CMD(0x01),
+	SMART_DAT(0x00), /* y1, 22 */
+	SMART_DAT(0x00), /* y1, 23 */
+};
+
+static uint16_t panel_on[] = {
+	/* Power-IC ON */
+	SMART_CMD(0x01),
+	SMART_CMD(0x02),
+	SMART_DAT(0x07),
+	SMART_DAT(0x7D),
+	SMART_CMD(0x01),
+	SMART_CMD(0x03),
+	SMART_DAT(0x00),
+	SMART_DAT(0x05),
+	SMART_CMD(0x01),
+	SMART_CMD(0x04),
+	SMART_DAT(0x00),
+	SMART_DAT(0x00),
+	SMART_CMD(0x01),
+	SMART_CMD(0x05),
+	SMART_DAT(0x00),
+	SMART_DAT(0x15),
+	SMART_CMD(0x01),
+	SMART_CMD(0x00),
+	SMART_DAT(0xC0),
+	SMART_DAT(0x10),
+	SMART_DELAY(30),
+
+	/* DISP ON */
+	SMART_CMD(0x01),
+	SMART_CMD(0x01),
+	SMART_DAT(0x00),
+	SMART_DAT(0x01),
+	SMART_CMD(0x01),
+	SMART_CMD(0x00),
+	SMART_DAT(0xFF),
+	SMART_DAT(0xFE),
+	SMART_DELAY(150),
+};
+
+static uint16_t panel_off[] = {
+	SMART_CMD(0x00),
+	SMART_CMD(0x1E),
+	SMART_DAT(0x00),
+	SMART_DAT(0x0A),
+	SMART_CMD(0x01),
+	SMART_CMD(0x00),
+	SMART_DAT(0xFF),
+	SMART_DAT(0xEE),
+	SMART_CMD(0x01),
+	SMART_CMD(0x00),
+	SMART_DAT(0xF8),
+	SMART_DAT(0x12),
+	SMART_CMD(0x01),
+	SMART_CMD(0x00),
+	SMART_DAT(0xE8),
+	SMART_DAT(0x11),
+	SMART_CMD(0x01),
+	SMART_CMD(0x00),
+	SMART_DAT(0xC0),
+	SMART_DAT(0x11),
+	SMART_CMD(0x01),
+	SMART_CMD(0x00),
+	SMART_DAT(0x40),
+	SMART_DAT(0x11),
+	SMART_CMD(0x01),
+	SMART_CMD(0x00),
+	SMART_DAT(0x00),
+	SMART_DAT(0x10),
+};
+
+static uint16_t update_framedata[] = {
+	/* write ram */
+	SMART_CMD(0x02),
+	SMART_CMD(0x02),
+
+	/* write frame data */
+	SMART_CMD_WRITE_FRAME,
+};
+
+static void ltm020d550_lcd_power(int on, struct fb_var_screeninfo *var)
+{
+	struct fb_info *info = container_of(var, struct fb_info, var);
+
+	if (on) {
+		pxafb_smart_queue(info, ARRAY_AND_SIZE(panel_init));
+		pxafb_smart_queue(info, ARRAY_AND_SIZE(panel_on));
+	} else {
+		pxafb_smart_queue(info, ARRAY_AND_SIZE(panel_off));
+	}
+
+	if (pxafb_smart_flush(info))
+		pr_err("%s: timed out\n", __func__);
+}
+
+static void ltm020d550_update(struct fb_info *info)
+{
+	pxafb_smart_queue(info, ARRAY_AND_SIZE(update_framedata));
+	pxafb_smart_flush(info);
+}
+
+static struct pxafb_mode_info toshiba_ltm020d550_modes[] = {
+	[0] = {
+		.xres			= 240,
+		.yres			= 320,
+		.bpp			= 16,
+		.a0csrd_set_hld		= 30,
+		.a0cswr_set_hld		= 30,
+		.wr_pulse_width		= 30,
+		.rd_pulse_width 	= 170,
+		.op_hold_time 		= 30,
+		.cmd_inh_time		= 60,
+
+		/* L_LCLK_A0 and L_LCLK_RD active low */
+		.sync			= FB_SYNC_HOR_HIGH_ACT |
+					  FB_SYNC_VERT_HIGH_ACT,
+	},
+};
+
+static struct pxafb_mach_info tavorevb_lcd_info = {
+	.modes			= toshiba_ltm020d550_modes,
+	.num_modes		= 1,
+	.lcd_conn		= LCD_SMART_PANEL_8BPP | LCD_PCLK_EDGE_FALL,
+	.pxafb_lcd_power	= ltm020d550_lcd_power,
+	.smart_update		= ltm020d550_update,
+};
+
+static void __init tavorevb_init_lcd(void)
+{
+	platform_device_register(&tavorevb_backlight_devices[0]);
+	platform_device_register(&tavorevb_backlight_devices[1]);
+	set_pxa_fb_info(&tavorevb_lcd_info);
+}
+#else
+static inline void tavorevb_init_lcd(void) {}
+#endif /* CONFIG_FB_PXA || CONFIG_FB_PXA_MODULE */
+
 static void __init tavorevb_init(void)
 {
 	/* initialize MFP configurations */
 	pxa3xx_mfp_config(ARRAY_AND_SIZE(tavorevb_mfp_cfg));
 
 	platform_device_register(&smc91x_device);
+
+	tavorevb_init_lcd();
+	tavorevb_init_keypad();
 }
 
 MACHINE_START(TAVOREVB, "PXA930 Evaluation Board (aka TavorEVB)")

arch/arm/mach-pxa/time.c

@@ -24,7 +24,6 @@
 #include <asm/mach/time.h>
 #include <mach/hardware.h>
 #include <mach/pxa-regs.h>
-#include <asm/mach-types.h>
 
 /*
  * This is PXA's sched_clock implementation. This has a resolution
@@ -151,18 +150,11 @@ static struct irqaction pxa_ost0_irq = {
 
 static void __init pxa_timer_init(void)
 {
-	unsigned long clock_tick_rate;
+	unsigned long clock_tick_rate = get_clock_tick_rate();
 
 	OIER = 0;
 	OSSR = OSSR_M0 | OSSR_M1 | OSSR_M2 | OSSR_M3;
 
-	if (cpu_is_pxa25x())
-		clock_tick_rate = 3686400;
-	else if (machine_is_mainstone())
-		clock_tick_rate = 3249600;
-	else
-		clock_tick_rate = 3250000;
-
 	set_oscr2ns_scale(clock_tick_rate);
 
 	ckevt_pxa_osmr0.mult =

arch/arm/mach-sa1100/include/mach/hardware.h

@@ -59,6 +59,10 @@
 # define __REG(x)	(*((volatile unsigned long *)io_p2v(x)))
 # define __PREG(x)	(io_v2p((unsigned long)&(x)))
 
+static inline unsigned long get_clock_tick_rate(void)
+{
+	return 3686400;
+}
 #else
 
 # define __REG(x)	io_p2v(x)

drivers/rtc/rtc-sa1100.c

@@ -38,11 +38,11 @@
 #include <mach/pxa-regs.h>
 #endif
 
-#define TIMER_FREQ		CLOCK_TICK_RATE
 #define RTC_DEF_DIVIDER		32768 - 1
 #define RTC_DEF_TRIM		0
 
 static unsigned long rtc_freq = 1024;
+static unsigned long timer_freq;
 static struct rtc_time rtc_alarm;
 static DEFINE_SPINLOCK(sa1100_rtc_lock);
 
@@ -157,7 +157,7 @@ static irqreturn_t timer1_interrupt(int irq, void *dev_id)
 	rtc_update_irq(rtc, rtc_timer1_count, RTC_PF | RTC_IRQF);
 
 	if (rtc_timer1_count == 1)
-		rtc_timer1_count = (rtc_freq * ((1<<30)/(TIMER_FREQ>>2)));
+		rtc_timer1_count = (rtc_freq * ((1 << 30) / (timer_freq >> 2)));
 
 	return IRQ_HANDLED;
 }
@@ -166,7 +166,7 @@ static int sa1100_rtc_read_callback(struct device *dev, int data)
 {
 	if (data & RTC_PF) {
 		/* interpolate missed periods and set match for the next */
-		unsigned long period = TIMER_FREQ/rtc_freq;
+		unsigned long period = timer_freq / rtc_freq;
 		unsigned long oscr = OSCR;
 		unsigned long osmr1 = OSMR1;
 		unsigned long missed = (oscr - osmr1)/period;
@@ -263,7 +263,7 @@ static int sa1100_rtc_ioctl(struct device *dev, unsigned int cmd,
 		return 0;
 	case RTC_PIE_ON:
 		spin_lock_irq(&sa1100_rtc_lock);
-		OSMR1 = TIMER_FREQ/rtc_freq + OSCR;
+		OSMR1 = timer_freq / rtc_freq + OSCR;
 		OIER |= OIER_E1;
 		rtc_timer1_count = 1;
 		spin_unlock_irq(&sa1100_rtc_lock);
@@ -271,7 +271,7 @@ static int sa1100_rtc_ioctl(struct device *dev, unsigned int cmd,
 	case RTC_IRQP_READ:
 		return put_user(rtc_freq, (unsigned long *)arg);
 	case RTC_IRQP_SET:
-		if (arg < 1 || arg > TIMER_FREQ)
+		if (arg < 1 || arg > timer_freq)
 			return -EINVAL;
 		rtc_freq = arg;
 		return 0;
@@ -352,6 +352,8 @@ static int sa1100_rtc_probe(struct platform_device *pdev)
 {
 	struct rtc_device *rtc;
 
+	timer_freq = get_clock_tick_rate();
+
 	/*
 	 * According to the manual we should be able to let RTTR be zero
 	 * and then a default diviser for a 32.768KHz clock is used.

drivers/video/Kconfig

@@ -1817,6 +1817,11 @@ config FB_PXA
 
 	  If unsure, say N.
 
+config FB_PXA_OVERLAY
+	bool "Support PXA27x/PXA3xx Overlay(s) as framebuffer"
+	default n
+	depends on FB_PXA && (PXA27x || PXA3xx)
+
 config FB_PXA_SMARTPANEL
 	bool "PXA Smartpanel LCD support"
 	default n

drivers/video/pxafb.h

@@ -54,11 +54,55 @@ enum {
 #define PALETTE_SIZE	(256 * 4)
 #define CMD_BUFF_SIZE	(1024 * 50)
 
+/* NOTE: the palette and frame dma descriptors are doubled to allow
+ * the 2nd set for branch settings (FBRx)
+ */
 struct pxafb_dma_buff {
 	unsigned char palette[PAL_MAX * PALETTE_SIZE];
 	uint16_t cmd_buff[CMD_BUFF_SIZE];
-	struct pxafb_dma_descriptor pal_desc[PAL_MAX];
+	struct pxafb_dma_descriptor pal_desc[PAL_MAX * 2];
-	struct pxafb_dma_descriptor dma_desc[DMA_MAX];
+	struct pxafb_dma_descriptor dma_desc[DMA_MAX * 2];
+};
+
+enum {
+	OVERLAY1,
+	OVERLAY2,
+};
+
+enum {
+	OVERLAY_FORMAT_RGB = 0,
+	OVERLAY_FORMAT_YUV444_PACKED,
+	OVERLAY_FORMAT_YUV444_PLANAR,
+	OVERLAY_FORMAT_YUV422_PLANAR,
+	OVERLAY_FORMAT_YUV420_PLANAR,
+};
+
+#define NONSTD_TO_XPOS(x)	(((x) >> 0)  & 0x3ff)
+#define NONSTD_TO_YPOS(x)	(((x) >> 10) & 0x3ff)
+#define NONSTD_TO_PFOR(x)	(((x) >> 20) & 0x7)
+
+struct pxafb_layer;
+
+struct pxafb_layer_ops {
+	void (*enable)(struct pxafb_layer *);
+	void (*disable)(struct pxafb_layer *);
+	void (*setup)(struct pxafb_layer *);
+};
+
+struct pxafb_layer {
+	struct fb_info		fb;
+	int			id;
+	atomic_t		usage;
+	uint32_t		control[2];
+
+	struct pxafb_layer_ops	*ops;
+
+	void __iomem		*video_mem;
+	unsigned long		video_mem_phys;
+	size_t			video_mem_size;
+	struct completion	branch_done;
+
+	struct pxafb_info	*fbi;
 };
 
 struct pxafb_info {
@@ -69,24 +113,15 @@ struct pxafb_info {
 	void __iomem		*mmio_base;
 
 	struct pxafb_dma_buff	*dma_buff;
+	size_t			dma_buff_size;
 	dma_addr_t		dma_buff_phys;
-	dma_addr_t		fdadr[DMA_MAX];
+	dma_addr_t		fdadr[DMA_MAX * 2];
 
-	/*
+	void __iomem		*video_mem;	/* virtual address of frame buffer */
-	 * These are the addresses we mapped
+	unsigned long		video_mem_phys;	/* physical address of frame buffer */
-	 * the framebuffer memory region to.
+	size_t			video_mem_size;	/* size of the frame buffer */
-	 */
-	/* raw memory addresses */
-	dma_addr_t		map_dma;	/* physical */
-	u_char *		map_cpu;	/* virtual */
-	u_int			map_size;
-
-	/* addresses of pieces placed in raw buffer */
-	u_char *		screen_cpu;	/* virtual address of frame buffer */
-	dma_addr_t		screen_dma;	/* physical address of frame buffer */
 	u16 *			palette_cpu;	/* virtual address of palette memory */
 	u_int			palette_size;
-	ssize_t			video_offset;
 
 	u_int			lccr0;
 	u_int			lccr3;
@@ -120,6 +155,10 @@ struct pxafb_info {
 	struct task_struct	*smart_thread;
 #endif
 
+#ifdef CONFIG_FB_PXA_OVERLAY
+	struct pxafb_layer	overlay[2];
+#endif
+
 #ifdef CONFIG_CPU_FREQ
 	struct notifier_block	freq_transition;
 	struct notifier_block	freq_policy;
@@ -151,4 +190,10 @@ struct pxafb_info {
 #define MIN_XRES	64
 #define MIN_YRES	64
 
+/* maximum X and Y resolutions - note these are limits from the register
+ * bits length instead of the real ones
+ */
+#define MAX_XRES	1024
+#define MAX_YRES	1024
+
 #endif /* __PXAFB_H__ */

drivers/watchdog/sa1100_wdt.c

@@ -36,8 +36,7 @@
 #include <mach/reset.h>
 #include <mach/hardware.h>
 
-#define OSCR_FREQ		CLOCK_TICK_RATE
+static unsigned long oscr_freq;
-
 static unsigned long sa1100wdt_users;
 static int pre_margin;
 static int boot_status;
@@ -124,12 +123,12 @@ static long sa1100dog_ioctl(struct file *file, unsigned int cmd,
 			break;
 		}
 
-		pre_margin = OSCR_FREQ * time;
+		pre_margin = oscr_freq * time;
 		OSMR3 = OSCR + pre_margin;
 		/*fall through*/
 
 	case WDIOC_GETTIMEOUT:
-		ret = put_user(pre_margin / OSCR_FREQ, p);
+		ret = put_user(pre_margin / oscr_freq, p);
 		break;
 	}
 	return ret;
@@ -156,6 +155,8 @@ static int __init sa1100dog_init(void)
 {
 	int ret;
 
+	oscr_freq = get_clock_tick_rate();
+
 	/*
 	 * Read the reset status, and save it for later.  If
 	 * we suspend, RCSR will be cleared, and the watchdog
@@ -163,7 +164,7 @@ static int __init sa1100dog_init(void)
 	 */
 	boot_status = (reset_status & RESET_STATUS_WATCHDOG) ?
 				WDIOF_CARDRESET : 0;
-	pre_margin = OSCR_FREQ * margin;
+	pre_margin = oscr_freq * margin;
 
 	ret = misc_register(&sa1100dog_miscdev);
 	if (ret == 0)