Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm

* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (407 commits)
  [ARM] pxafb: add support for overlay1 and overlay2 as framebuffer devices
  [ARM] pxafb: cleanup of the timing checking code
  [ARM] pxafb: cleanup of the color format manipulation code
  [ARM] pxafb: add palette format support for LCCR4_PAL_FOR_3
  [ARM] pxafb: add support for FBIOPAN_DISPLAY by dma braching
  [ARM] pxafb: allow pxafb_set_par() to start from arbitrary yoffset
  [ARM] pxafb: allow video memory size to be configurable
  [ARM] pxa: add document on the MFP design and how to use it
  [ARM] sa1100_wdt: don't assume CLOCK_TICK_RATE to be a constant
  [ARM] rtc-sa1100: don't assume CLOCK_TICK_RATE to be a constant
  [ARM] pxa/tavorevb: update board support (smartpanel LCD + keypad)
  [ARM] pxa: Update eseries defconfig
  [ARM] 5352/1: add w90p910-plat config file
  [ARM] s3c: S3C options should depend on PLAT_S3C
  [ARM] mv78xx0: implement GPIO and GPIO interrupt support
  [ARM] Kirkwood: implement GPIO and GPIO interrupt support
  [ARM] Orion: share GPIO IRQ handling code
  [ARM] Orion: share GPIO handling code
  [ARM] s3c: define __io using the typesafe version
  [ARM] S3C64XX: Ensure CPU_V6 is selected
  ...

1 files changed, 37 insertions, 0 deletions

diff --git a/arch/arm/plat-s3c24xx/include/plat/pll.h b/arch/arm/plat-s3c24xx/include/plat/pll.h
new file mode 100644
index 00000000000..7ea8bffa7a9
--- /dev/null
+++ b/arch/arm/plat-s3c24xx/include/plat/pll.h
@@ -0,0 +1,37 @@
+/* linux/arch/arm/plat-s3c24xx/include/plat/pll.h
+ *
+ * Copyright 2008 Simtec Electronics
+ *      Ben Dooks <ben@simtec.co.uk>
+ *      http://armlinux.simtec.co.uk/
+ *
+ * S3C24xx - common pll registers and code
+ */
+
+#define S3C24XX_PLLCON_MDIVSHIFT	12
+#define S3C24XX_PLLCON_PDIVSHIFT	4
+#define S3C24XX_PLLCON_SDIVSHIFT	0
+#define S3C24XX_PLLCON_MDIVMASK		((1<<(1+(19-12)))-1)
+#define S3C24XX_PLLCON_PDIVMASK		((1<<5)-1)
+#define S3C24XX_PLLCON_SDIVMASK		3
+
+#include <asm/div64.h>
+
+static inline unsigned int
+s3c24xx_get_pll(unsigned int pllval, unsigned int baseclk)
+{
+	unsigned int mdiv, pdiv, sdiv;
+	uint64_t fvco;
+
+	mdiv = pllval >> S3C24XX_PLLCON_MDIVSHIFT;
+	pdiv = pllval >> S3C24XX_PLLCON_PDIVSHIFT;
+	sdiv = pllval >> S3C24XX_PLLCON_SDIVSHIFT;
+
+	mdiv &= S3C24XX_PLLCON_MDIVMASK;
+	pdiv &= S3C24XX_PLLCON_PDIVMASK;
+	sdiv &= S3C24XX_PLLCON_SDIVMASK;
+
+	fvco = (uint64_t)baseclk * (mdiv + 8);
+	do_div(fvco, (pdiv + 2) << sdiv);
+
+	return (unsigned int)fvco;
+}