diff options
Diffstat (limited to 'kernel/arch/arm/mach-omap2/cm2xxx_3xxx.h')
| -rw-r--r-- | kernel/arch/arm/mach-omap2/cm2xxx_3xxx.h | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/kernel/arch/arm/mach-omap2/cm2xxx_3xxx.h b/kernel/arch/arm/mach-omap2/cm2xxx_3xxx.h new file mode 100644 index 000000000..72928a3ce --- /dev/null +++ b/kernel/arch/arm/mach-omap2/cm2xxx_3xxx.h @@ -0,0 +1,120 @@ +/* + * OMAP2/3 Clock Management (CM) register definitions + * + * Copyright (C) 2007-2009 Texas Instruments, Inc. + * Copyright (C) 2007-2010 Nokia Corporation + * Paul Walmsley + * + * 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. + * + * The CM hardware modules on the OMAP2/3 are quite similar to each + * other. The CM modules/instances on OMAP4 are quite different, so + * they are handled in a separate file. + */ +#ifndef __ARCH_ASM_MACH_OMAP2_CM2XXX_3XXX_H +#define __ARCH_ASM_MACH_OMAP2_CM2XXX_3XXX_H + +#include "cm.h" + +/* + * Module specific CM register offsets from CM_BASE + domain offset + * Use cm_{read,write}_mod_reg() with these registers. + * These register offsets generally appear in more than one PRCM submodule. + */ + +/* Common between OMAP2 and OMAP3 */ + +#define CM_FCLKEN 0x0000 +#define CM_FCLKEN1 CM_FCLKEN +#define CM_CLKEN CM_FCLKEN +#define CM_ICLKEN 0x0010 +#define CM_ICLKEN1 CM_ICLKEN +#define CM_ICLKEN2 0x0014 +#define CM_ICLKEN3 0x0018 +#define CM_IDLEST 0x0020 +#define CM_IDLEST1 CM_IDLEST +#define CM_IDLEST2 0x0024 +#define OMAP2430_CM_IDLEST3 0x0028 +#define CM_AUTOIDLE 0x0030 +#define CM_AUTOIDLE1 CM_AUTOIDLE +#define CM_AUTOIDLE2 0x0034 +#define CM_AUTOIDLE3 0x0038 +#define CM_CLKSEL 0x0040 +#define CM_CLKSEL1 CM_CLKSEL +#define CM_CLKSEL2 0x0044 +#define OMAP2_CM_CLKSTCTRL 0x0048 + +#ifndef __ASSEMBLER__ + +#include <linux/io.h> + +static inline u32 omap2_cm_read_mod_reg(s16 module, u16 idx) +{ + return readl_relaxed(cm_base + module + idx); +} + +static inline void omap2_cm_write_mod_reg(u32 val, s16 module, u16 idx) +{ + writel_relaxed(val, cm_base + module + idx); +} + +/* Read-modify-write a register in a CM module. Caller must lock */ +static inline u32 omap2_cm_rmw_mod_reg_bits(u32 mask, u32 bits, s16 module, + s16 idx) +{ + u32 v; + + v = omap2_cm_read_mod_reg(module, idx); + v &= ~mask; + v |= bits; + omap2_cm_write_mod_reg(v, module, idx); + + return v; +} + +/* Read a CM register, AND it, and shift the result down to bit 0 */ +static inline u32 omap2_cm_read_mod_bits_shift(s16 domain, s16 idx, u32 mask) +{ + u32 v; + + v = omap2_cm_read_mod_reg(domain, idx); + v &= mask; + v >>= __ffs(mask); + + return v; +} + +static inline u32 omap2_cm_set_mod_reg_bits(u32 bits, s16 module, s16 idx) +{ + return omap2_cm_rmw_mod_reg_bits(bits, bits, module, idx); +} + +static inline u32 omap2_cm_clear_mod_reg_bits(u32 bits, s16 module, s16 idx) +{ + return omap2_cm_rmw_mod_reg_bits(bits, 0x0, module, idx); +} + +extern int omap2xxx_cm_apll54_enable(void); +extern void omap2xxx_cm_apll54_disable(void); +extern int omap2xxx_cm_apll96_enable(void); +extern void omap2xxx_cm_apll96_disable(void); + +#endif + +/* CM register bits shared between 24XX and 3430 */ + +/* CM_CLKSEL_GFX */ +#define OMAP_CLKSEL_GFX_SHIFT 0 +#define OMAP_CLKSEL_GFX_MASK (0x7 << 0) +#define OMAP_CLKSEL_GFX_WIDTH 3 + +/* CM_ICLKEN_GFX */ +#define OMAP_EN_GFX_SHIFT 0 +#define OMAP_EN_GFX_MASK (1 << 0) + +/* CM_IDLEST_GFX */ +#define OMAP_ST_GFX_MASK (1 << 0) + +#endif |