542313cc98
This patch adds support for DPLL autoidle control to the OMAP3 clock framework. These functions will be used by the noncore DPLL enable and disable code - this is because, according to the CDP code, the DPLL autoidle status must be saved and restored across DPLL lock/bypass/off transitions. N.B.: the CORE DPLL (DPLL3) has three autoidle mode options, rather than just two. This code currently does not support the third option, low-power bypass autoidle. Signed-off-by: Paul Walmsley <paul@pwsan.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
131 lines
3.7 KiB
C
131 lines
3.7 KiB
C
#ifndef __ARCH_ASM_MACH_OMAP2_CM_H
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#define __ARCH_ASM_MACH_OMAP2_CM_H
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/*
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* OMAP2/3 Clock Management (CM) register definitions
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*
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* Copyright (C) 2007-2008 Texas Instruments, Inc.
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* Copyright (C) 2007-2008 Nokia Corporation
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*
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* Written by Paul Walmsley
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include "prcm-common.h"
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#ifndef __ASSEMBLER__
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#define OMAP_CM_REGADDR(module, reg) \
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(void __iomem *)IO_ADDRESS(OMAP2_CM_BASE + (module) + (reg))
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#else
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#define OMAP2420_CM_REGADDR(module, reg) \
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IO_ADDRESS(OMAP2420_CM_BASE + (module) + (reg))
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#define OMAP2430_CM_REGADDR(module, reg) \
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IO_ADDRESS(OMAP2430_CM_BASE + (module) + (reg))
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#define OMAP34XX_CM_REGADDR(module, reg) \
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IO_ADDRESS(OMAP3430_CM_BASE + (module) + (reg))
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#endif
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/*
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* Architecture-specific global CM registers
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* Use cm_{read,write}_reg() with these registers.
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* These registers appear once per CM module.
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*/
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#define OMAP3430_CM_REVISION OMAP_CM_REGADDR(OCP_MOD, 0x0000)
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#define OMAP3430_CM_SYSCONFIG OMAP_CM_REGADDR(OCP_MOD, 0x0010)
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#define OMAP3430_CM_POLCTRL OMAP_CM_REGADDR(OCP_MOD, 0x009c)
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#define OMAP3430_CM_CLKOUT_CTRL OMAP_CM_REGADDR(OMAP3430_CCR_MOD, 0x0070)
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/*
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* Module specific CM registers from CM_BASE + domain offset
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* Use cm_{read,write}_mod_reg() with these registers.
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* These register offsets generally appear in more than one PRCM submodule.
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*/
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/* Common between 24xx and 34xx */
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#define CM_FCLKEN 0x0000
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#define CM_FCLKEN1 CM_FCLKEN
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#define CM_CLKEN CM_FCLKEN
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#define CM_ICLKEN 0x0010
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#define CM_ICLKEN1 CM_ICLKEN
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#define CM_ICLKEN2 0x0014
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#define CM_ICLKEN3 0x0018
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#define CM_IDLEST 0x0020
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#define CM_IDLEST1 CM_IDLEST
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#define CM_IDLEST2 0x0024
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#define CM_AUTOIDLE 0x0030
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#define CM_AUTOIDLE1 CM_AUTOIDLE
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#define CM_AUTOIDLE2 0x0034
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#define CM_AUTOIDLE3 0x0038
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#define CM_CLKSEL 0x0040
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#define CM_CLKSEL1 CM_CLKSEL
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#define CM_CLKSEL2 0x0044
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#define CM_CLKSTCTRL 0x0048
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/* Architecture-specific registers */
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#define OMAP24XX_CM_FCLKEN2 0x0004
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#define OMAP24XX_CM_ICLKEN4 0x001c
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#define OMAP24XX_CM_AUTOIDLE4 0x003c
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#define OMAP2430_CM_IDLEST3 0x0028
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#define OMAP3430_CM_CLKEN_PLL 0x0004
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#define OMAP3430ES2_CM_CLKEN2 0x0004
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#define OMAP3430ES2_CM_FCLKEN3 0x0008
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#define OMAP3430_CM_IDLEST_PLL CM_IDLEST2
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#define OMAP3430_CM_AUTOIDLE_PLL CM_AUTOIDLE2
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#define OMAP3430ES2_CM_AUTOIDLE2_PLL CM_AUTOIDLE2
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#define OMAP3430_CM_CLKSEL1 CM_CLKSEL
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#define OMAP3430_CM_CLKSEL1_PLL CM_CLKSEL
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#define OMAP3430_CM_CLKSEL2_PLL CM_CLKSEL2
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#define OMAP3430_CM_SLEEPDEP CM_CLKSEL2
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#define OMAP3430_CM_CLKSEL3 CM_CLKSTCTRL
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#define OMAP3430_CM_CLKSTST 0x004c
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#define OMAP3430ES2_CM_CLKSEL4 0x004c
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#define OMAP3430ES2_CM_CLKSEL5 0x0050
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#define OMAP3430_CM_CLKSEL2_EMU 0x0050
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#define OMAP3430_CM_CLKSEL3_EMU 0x0054
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/* Clock management domain register get/set */
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#ifndef __ASSEMBLER__
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extern u32 cm_read_mod_reg(s16 module, u16 idx);
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extern void cm_write_mod_reg(u32 val, s16 module, u16 idx);
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extern u32 cm_rmw_mod_reg_bits(u32 mask, u32 bits, s16 module, s16 idx);
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static inline u32 cm_set_mod_reg_bits(u32 bits, s16 module, s16 idx)
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{
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return cm_rmw_mod_reg_bits(bits, bits, module, idx);
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}
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static inline u32 cm_clear_mod_reg_bits(u32 bits, s16 module, s16 idx)
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{
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return cm_rmw_mod_reg_bits(bits, 0x0, module, idx);
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}
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#endif
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/* CM register bits shared between 24XX and 3430 */
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/* CM_CLKSEL_GFX */
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#define OMAP_CLKSEL_GFX_SHIFT 0
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#define OMAP_CLKSEL_GFX_MASK (0x7 << 0)
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/* CM_ICLKEN_GFX */
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#define OMAP_EN_GFX_SHIFT 0
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#define OMAP_EN_GFX (1 << 0)
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/* CM_IDLEST_GFX */
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#define OMAP_ST_GFX (1 << 0)
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#endif
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