1 files changed, 323 insertions, 0 deletions

diff --git a/arch/arm/plat-samsung/include/plat/pll.h b/arch/arm/plat-samsung/include/plat/pll.h
new file mode 100644
index 00000000000..357af7c1c66
--- /dev/null
+++ b/arch/arm/plat-samsung/include/plat/pll.h
@@ -0,0 +1,323 @@
+/* linux/arch/arm/plat-samsung/include/plat/pll.h
+ *
+ * Copyright (c) 2009-2011 Samsung Electronics Co., Ltd.
+ *              http://www.samsung.com/
+ *
+ * Copyright 2008 Openmoko, Inc.
+ * Copyright 2008 Simtec Electronics
+ *      Ben Dooks <ben@simtec.co.uk>
+ *      http://armlinux.simtec.co.uk/
+ *
+ * Samsung PLL codes
+ *
+ * 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.
+*/
+
+#include <asm/div64.h>
+
+#define S3C24XX_PLL_MDIV_MASK           (0xFF)
+#define S3C24XX_PLL_PDIV_MASK           (0x1F)
+#define S3C24XX_PLL_SDIV_MASK           (0x3)
+#define S3C24XX_PLL_MDIV_SHIFT          (12)
+#define S3C24XX_PLL_PDIV_SHIFT          (4)
+#define S3C24XX_PLL_SDIV_SHIFT          (0)
+
+static inline unsigned int s3c24xx_get_pll(unsigned int pllval,
+                                           unsigned int baseclk)
+{
+        unsigned int mdiv, pdiv, sdiv;
+        uint64_t fvco;
+
+        mdiv = (pllval >> S3C24XX_PLL_MDIV_SHIFT) & S3C24XX_PLL_MDIV_MASK;
+        pdiv = (pllval >> S3C24XX_PLL_PDIV_SHIFT) & S3C24XX_PLL_PDIV_MASK;
+        sdiv = (pllval >> S3C24XX_PLL_SDIV_SHIFT) & S3C24XX_PLL_SDIV_MASK;
+
+        fvco = (uint64_t)baseclk * (mdiv + 8);
+        do_div(fvco, (pdiv + 2) << sdiv);
+
+        return (unsigned int)fvco;
+}
+
+#define S3C2416_PLL_MDIV_MASK           (0x3FF)
+#define S3C2416_PLL_PDIV_MASK           (0x3F)
+#define S3C2416_PLL_SDIV_MASK           (0x7)
+#define S3C2416_PLL_MDIV_SHIFT          (14)
+#define S3C2416_PLL_PDIV_SHIFT          (5)
+#define S3C2416_PLL_SDIV_SHIFT          (0)
+
+static inline unsigned int s3c2416_get_pll(unsigned int pllval,
+                                           unsigned int baseclk)
+{
+        unsigned int mdiv, pdiv, sdiv;
+        uint64_t fvco;
+
+        mdiv = (pllval >> S3C2416_PLL_MDIV_SHIFT) & S3C2416_PLL_MDIV_MASK;
+        pdiv = (pllval >> S3C2416_PLL_PDIV_SHIFT) & S3C2416_PLL_PDIV_MASK;
+        sdiv = (pllval >> S3C2416_PLL_SDIV_SHIFT) & S3C2416_PLL_SDIV_MASK;
+
+        fvco = (uint64_t)baseclk * mdiv;
+        do_div(fvco, (pdiv << sdiv));
+
+        return (unsigned int)fvco;
+}
+
+#define S3C6400_PLL_MDIV_MASK           (0x3FF)
+#define S3C6400_PLL_PDIV_MASK           (0x3F)
+#define S3C6400_PLL_SDIV_MASK           (0x7)
+#define S3C6400_PLL_MDIV_SHIFT          (16)
+#define S3C6400_PLL_PDIV_SHIFT          (8)
+#define S3C6400_PLL_SDIV_SHIFT          (0)
+
+static inline unsigned long s3c6400_get_pll(unsigned long baseclk,
+                                            u32 pllcon)
+{
+        u32 mdiv, pdiv, sdiv;
+        u64 fvco = baseclk;
+
+        mdiv = (pllcon >> S3C6400_PLL_MDIV_SHIFT) & S3C6400_PLL_MDIV_MASK;
+        pdiv = (pllcon >> S3C6400_PLL_PDIV_SHIFT) & S3C6400_PLL_PDIV_MASK;
+        sdiv = (pllcon >> S3C6400_PLL_SDIV_SHIFT) & S3C6400_PLL_SDIV_MASK;
+
+        fvco *= mdiv;
+        do_div(fvco, (pdiv << sdiv));
+
+        return (unsigned long)fvco;
+}
+
+#define PLL6553X_MDIV_MASK      (0x7F)
+#define PLL6553X_PDIV_MASK      (0x1F)
+#define PLL6553X_SDIV_MASK      (0x3)
+#define PLL6553X_KDIV_MASK      (0xFFFF)
+#define PLL6553X_MDIV_SHIFT     (16)
+#define PLL6553X_PDIV_SHIFT     (8)
+#define PLL6553X_SDIV_SHIFT     (0)
+
+static inline unsigned long s3c_get_pll6553x(unsigned long baseclk,
+                                             u32 pll_con0, u32 pll_con1)
+{
+        unsigned long result;
+        u32 mdiv, pdiv, sdiv, kdiv;
+        u64 tmp;
+
+        mdiv = (pll_con0 >> PLL6553X_MDIV_SHIFT) & PLL6553X_MDIV_MASK;
+        pdiv = (pll_con0 >> PLL6553X_PDIV_SHIFT) & PLL6553X_PDIV_MASK;
+        sdiv = (pll_con0 >> PLL6553X_SDIV_SHIFT) & PLL6553X_SDIV_MASK;
+        kdiv = pll_con1 & 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;
+}
+
+#define PLL35XX_MDIV_MASK       (0x3FF)
+#define PLL35XX_PDIV_MASK       (0x3F)
+#define PLL35XX_SDIV_MASK       (0x7)
+#define PLL35XX_MDIV_SHIFT      (16)
+#define PLL35XX_PDIV_SHIFT      (8)
+#define PLL35XX_SDIV_SHIFT      (0)
+
+static inline unsigned long s5p_get_pll35xx(unsigned long baseclk, u32 pll_con)
+{
+        u32 mdiv, pdiv, sdiv;
+        u64 fvco = baseclk;
+
+        mdiv = (pll_con >> PLL35XX_MDIV_SHIFT) & PLL35XX_MDIV_MASK;
+        pdiv = (pll_con >> PLL35XX_PDIV_SHIFT) & PLL35XX_PDIV_MASK;
+        sdiv = (pll_con >> PLL35XX_SDIV_SHIFT) & PLL35XX_SDIV_MASK;
+
+        fvco *= mdiv;
+        do_div(fvco, (pdiv << sdiv));
+
+        return (unsigned long)fvco;
+}
+
+#define PLL36XX_KDIV_MASK       (0xFFFF)
+#define PLL36XX_MDIV_MASK       (0x1FF)
+#define PLL36XX_PDIV_MASK       (0x3F)
+#define PLL36XX_SDIV_MASK       (0x7)
+#define PLL36XX_MDIV_SHIFT      (16)
+#define PLL36XX_PDIV_SHIFT      (8)
+#define PLL36XX_SDIV_SHIFT      (0)
+
+static inline unsigned long s5p_get_pll36xx(unsigned long baseclk,
+                                            u32 pll_con0, u32 pll_con1)
+{
+        unsigned long result;
+        u32 mdiv, pdiv, sdiv, kdiv;
+        u64 tmp;
+
+        mdiv = (pll_con0 >> PLL36XX_MDIV_SHIFT) & PLL36XX_MDIV_MASK;
+        pdiv = (pll_con0 >> PLL36XX_PDIV_SHIFT) & PLL36XX_PDIV_MASK;
+        sdiv = (pll_con0 >> PLL36XX_SDIV_SHIFT) & PLL36XX_SDIV_MASK;
+        kdiv = pll_con1 & PLL36XX_KDIV_MASK;
+
+        tmp = baseclk;
+
+        tmp *= (mdiv << 16) + kdiv;
+        do_div(tmp, (pdiv << sdiv));
+        result = tmp >> 16;
+
+        return result;
+}
+
+#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)
+
+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;
+}
+
+/* CON0 bit-fields */
+#define PLL46XX_MDIV_MASK       (0x1FF)
+#define PLL46XX_PDIV_MASK       (0x3F)
+#define PLL46XX_SDIV_MASK       (0x7)
+#define PLL46XX_LOCKED_SHIFT    (29)
+#define PLL46XX_MDIV_SHIFT      (16)
+#define PLL46XX_PDIV_SHIFT      (8)
+#define PLL46XX_SDIV_SHIFT      (0)
+
+/* CON1 bit-fields */
+#define PLL46XX_MRR_MASK        (0x1F)
+#define PLL46XX_MFR_MASK        (0x3F)
+#define PLL46XX_KDIV_MASK       (0xFFFF)
+#define PLL4650C_KDIV_MASK      (0xFFF)
+#define PLL46XX_MRR_SHIFT       (24)
+#define PLL46XX_MFR_SHIFT       (16)
+#define PLL46XX_KDIV_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;
+        kdiv = pll_con1 & PLL46XX_KDIV_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_LOCKED_SHIFT    (29)
+#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;
+}