diff options
Diffstat (limited to 'arch/arm/plat-s5p')
| -rw-r--r-- | arch/arm/plat-s5p/include/plat/pll.h | 152 |
1 files changed, 0 insertions, 152 deletions
diff --git a/arch/arm/plat-s5p/include/plat/pll.h b/arch/arm/plat-s5p/include/plat/pll.h deleted file mode 100644 index ebc142c5c84c..000000000000 --- a/arch/arm/plat-s5p/include/plat/pll.h +++ /dev/null @@ -1,152 +0,0 @@ -/* arch/arm/plat-s5p/include/plat/pll.h - * - * Copyright (c) 2009 Samsung Electronics Co., Ltd. - * http://www.samsung.com/ - * - * S5P PLL code - * - * Based on arch/arm/plat-s3c64xx/include/plat/pll.h - * - * 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. -*/ - -#define PLL45XX_MDIV_MASK (0x3FF) -#define PLL45XX_PDIV_MASK (0x3F) -#define PLL45XX_SDIV_MASK (0x7) -#define PLL45XX_MDIV_SHIFT (16) -#define PLL45XX_PDIV_SHIFT (8) -#define PLL45XX_SDIV_SHIFT (0) - -#include <asm/div64.h> - -enum pll45xx_type_t { - pll_4500, - pll_4502, - pll_4508 -}; - -static inline unsigned long s5p_get_pll45xx(unsigned long baseclk, u32 pll_con, - enum pll45xx_type_t pll_type) -{ - u32 mdiv, pdiv, sdiv; - u64 fvco = baseclk; - - mdiv = (pll_con >> PLL45XX_MDIV_SHIFT) & PLL45XX_MDIV_MASK; - pdiv = (pll_con >> PLL45XX_PDIV_SHIFT) & PLL45XX_PDIV_MASK; - sdiv = (pll_con >> PLL45XX_SDIV_SHIFT) & PLL45XX_SDIV_MASK; - - if (pll_type == pll_4508) - sdiv = sdiv - 1; - - fvco *= mdiv; - do_div(fvco, (pdiv << sdiv)); - - return (unsigned long)fvco; -} - -#define PLL46XX_KDIV_MASK (0xFFFF) -#define PLL4650C_KDIV_MASK (0xFFF) -#define PLL46XX_MDIV_MASK (0x1FF) -#define PLL46XX_PDIV_MASK (0x3F) -#define PLL46XX_SDIV_MASK (0x7) -#define PLL46XX_MDIV_SHIFT (16) -#define PLL46XX_PDIV_SHIFT (8) -#define PLL46XX_SDIV_SHIFT (0) - -enum pll46xx_type_t { - pll_4600, - pll_4650, - pll_4650c, -}; - -static inline unsigned long s5p_get_pll46xx(unsigned long baseclk, - u32 pll_con0, u32 pll_con1, - enum pll46xx_type_t pll_type) -{ - unsigned long result; - u32 mdiv, pdiv, sdiv, kdiv; - u64 tmp; - - mdiv = (pll_con0 >> PLL46XX_MDIV_SHIFT) & PLL46XX_MDIV_MASK; - pdiv = (pll_con0 >> PLL46XX_PDIV_SHIFT) & PLL46XX_PDIV_MASK; - sdiv = (pll_con0 >> PLL46XX_SDIV_SHIFT) & PLL46XX_SDIV_MASK; - - if (pll_type == pll_4650c) - kdiv = pll_con1 & PLL4650C_KDIV_MASK; - else - kdiv = pll_con1 & PLL46XX_KDIV_MASK; - - tmp = baseclk; - - if (pll_type == pll_4600) { - tmp *= (mdiv << 16) + kdiv; - do_div(tmp, (pdiv << sdiv)); - result = tmp >> 16; - } else { - tmp *= (mdiv << 10) + kdiv; - do_div(tmp, (pdiv << sdiv)); - result = tmp >> 10; - } - - return result; -} - -#define PLL90XX_MDIV_MASK (0xFF) -#define PLL90XX_PDIV_MASK (0x3F) -#define PLL90XX_SDIV_MASK (0x7) -#define PLL90XX_KDIV_MASK (0xffff) -#define PLL90XX_MDIV_SHIFT (16) -#define PLL90XX_PDIV_SHIFT (8) -#define PLL90XX_SDIV_SHIFT (0) -#define PLL90XX_KDIV_SHIFT (0) - -static inline unsigned long s5p_get_pll90xx(unsigned long baseclk, - u32 pll_con, u32 pll_conk) -{ - unsigned long result; - u32 mdiv, pdiv, sdiv, kdiv; - u64 tmp; - - mdiv = (pll_con >> PLL90XX_MDIV_SHIFT) & PLL90XX_MDIV_MASK; - pdiv = (pll_con >> PLL90XX_PDIV_SHIFT) & PLL90XX_PDIV_MASK; - sdiv = (pll_con >> PLL90XX_SDIV_SHIFT) & PLL90XX_SDIV_MASK; - kdiv = pll_conk & PLL90XX_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; -} - -#define PLL65XX_MDIV_MASK (0x3FF) -#define PLL65XX_PDIV_MASK (0x3F) -#define PLL65XX_SDIV_MASK (0x7) -#define PLL65XX_MDIV_SHIFT (16) -#define PLL65XX_PDIV_SHIFT (8) -#define PLL65XX_SDIV_SHIFT (0) - -static inline unsigned long s5p_get_pll65xx(unsigned long baseclk, u32 pll_con) -{ - u32 mdiv, pdiv, sdiv; - u64 fvco = baseclk; - - mdiv = (pll_con >> PLL65XX_MDIV_SHIFT) & PLL65XX_MDIV_MASK; - pdiv = (pll_con >> PLL65XX_PDIV_SHIFT) & PLL65XX_PDIV_MASK; - sdiv = (pll_con >> PLL65XX_SDIV_SHIFT) & PLL65XX_SDIV_MASK; - - fvco *= mdiv; - do_div(fvco, (pdiv << sdiv)); - - return (unsigned long)fvco; -} |