diff options
Diffstat (limited to 'arch/arm/plat-samsung/include/plat/pll6553x.h')
-rw-r--r-- | arch/arm/plat-samsung/include/plat/pll6553x.h | 51 |
1 files changed, 0 insertions, 51 deletions
diff --git a/arch/arm/plat-samsung/include/plat/pll6553x.h b/arch/arm/plat-samsung/include/plat/pll6553x.h deleted file mode 100644 index b8b7e1d884f..00000000000 --- a/arch/arm/plat-samsung/include/plat/pll6553x.h +++ /dev/null @@ -1,51 +0,0 @@ -/* arch/arm/plat-samsung/include/plat/pll6553x.h - * partially from arch/arm/mach-s3c64xx/include/mach/pll.h - * - * Copyright 2008 Openmoko, Inc. - * Copyright 2008 Simtec Electronics - * Ben Dooks <ben@simtec.co.uk> - * http://armlinux.simtec.co.uk/ - * - * Samsung PLL6553x PLL code - * - * 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. -*/ - -/* S3C6400 and compatible (S3C2416, etc.) EPLL code */ - -#define PLL6553X_MDIV_MASK ((1 << (23-16)) - 1) -#define PLL6553X_PDIV_MASK ((1 << (13-8)) - 1) -#define PLL6553X_SDIV_MASK ((1 << (2-0)) - 1) -#define PLL6553X_MDIV_SHIFT (16) -#define PLL6553X_PDIV_SHIFT (8) -#define PLL6553X_SDIV_SHIFT (0) -#define PLL6553X_KDIV_MASK (0xffff) - -static inline unsigned long s3c_get_pll6553x(unsigned long baseclk, - u32 pll0, u32 pll1) -{ - unsigned long result; - u32 mdiv, pdiv, sdiv, kdiv; - u64 tmp; - - mdiv = (pll0 >> PLL6553X_MDIV_SHIFT) & PLL6553X_MDIV_MASK; - pdiv = (pll0 >> PLL6553X_PDIV_SHIFT) & PLL6553X_PDIV_MASK; - sdiv = (pll0 >> PLL6553X_SDIV_SHIFT) & PLL6553X_SDIV_MASK; - kdiv = pll1 & PLL6553X_KDIV_MASK; - - /* We need to multiple baseclk by mdiv (the integer part) and kdiv - * which is in 2^16ths, so shift mdiv up (does not overflow) and - * add kdiv before multiplying. The use of tmp is to avoid any - * overflows before shifting bac down into result when multipling - * by the mdiv and kdiv pair. - */ - - tmp = baseclk; - tmp *= (mdiv << 16) + kdiv; - do_div(tmp, (pdiv << sdiv)); - result = tmp >> 16; - - return result; -} |