diff options
Diffstat (limited to 'arch/arm/mach-omap2/prm2xxx_3xxx.h')
| -rw-r--r-- | arch/arm/mach-omap2/prm2xxx_3xxx.h | 248 |
1 files changed, 248 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/prm2xxx_3xxx.h b/arch/arm/mach-omap2/prm2xxx_3xxx.h new file mode 100644 index 000000000..6775e1088 --- /dev/null +++ b/arch/arm/mach-omap2/prm2xxx_3xxx.h @@ -0,0 +1,248 @@ +/* + * OMAP2xxx/3xxx-common Power/Reset Management (PRM) register definitions + * + * Copyright (C) 2007-2009, 2011-2012 Texas Instruments, Inc. + * Copyright (C) 2008-2010 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 PRM hardware modules on the OMAP2/3 are quite similar to each + * other. The PRM on OMAP4 has a new register layout, and is handled + * in a separate file. + */ +#ifndef __ARCH_ARM_MACH_OMAP2_PRM2XXX_3XXX_H +#define __ARCH_ARM_MACH_OMAP2_PRM2XXX_3XXX_H + +#include "prcm-common.h" +#include "prm.h" + +/* + * Module specific PRM register offsets from PRM_BASE + domain offset + * + * Use prm_{read,write}_mod_reg() with these registers. + * + * With a few exceptions, these are the register names beginning with + * {PM,RM}_* on both OMAP2/3 SoC families.. (The exceptions are the + * IRQSTATUS and IRQENABLE bits.) + */ + +/* Register offsets appearing on both OMAP2 and OMAP3 */ + +#define OMAP2_RM_RSTCTRL 0x0050 +#define OMAP2_RM_RSTTIME 0x0054 +#define OMAP2_RM_RSTST 0x0058 +#define OMAP2_PM_PWSTCTRL 0x00e0 +#define OMAP2_PM_PWSTST 0x00e4 + +#define PM_WKEN 0x00a0 +#define PM_WKEN1 PM_WKEN +#define PM_WKST 0x00b0 +#define PM_WKST1 PM_WKST +#define PM_WKDEP 0x00c8 +#define PM_EVGENCTRL 0x00d4 +#define PM_EVGENONTIM 0x00d8 +#define PM_EVGENOFFTIM 0x00dc + + +#ifndef __ASSEMBLER__ + +#include <linux/io.h> +#include "powerdomain.h" + +/* Power/reset management domain register get/set */ +static inline u32 omap2_prm_read_mod_reg(s16 module, u16 idx) +{ + return readl_relaxed(prm_base.va + module + idx); +} + +static inline void omap2_prm_write_mod_reg(u32 val, s16 module, u16 idx) +{ + writel_relaxed(val, prm_base.va + module + idx); +} + +/* Read-modify-write a register in a PRM module. Caller must lock */ +static inline u32 omap2_prm_rmw_mod_reg_bits(u32 mask, u32 bits, s16 module, + s16 idx) +{ + u32 v; + + v = omap2_prm_read_mod_reg(module, idx); + v &= ~mask; + v |= bits; + omap2_prm_write_mod_reg(v, module, idx); + + return v; +} + +/* Read a PRM register, AND it, and shift the result down to bit 0 */ +static inline u32 omap2_prm_read_mod_bits_shift(s16 domain, s16 idx, u32 mask) +{ + u32 v; + + v = omap2_prm_read_mod_reg(domain, idx); + v &= mask; + v >>= __ffs(mask); + + return v; +} + +static inline u32 omap2_prm_set_mod_reg_bits(u32 bits, s16 module, s16 idx) +{ + return omap2_prm_rmw_mod_reg_bits(bits, bits, module, idx); +} + +static inline u32 omap2_prm_clear_mod_reg_bits(u32 bits, s16 module, s16 idx) +{ + return omap2_prm_rmw_mod_reg_bits(bits, 0x0, module, idx); +} + +/* These omap2_ PRM functions apply to both OMAP2 and 3 */ +int omap2_prm_is_hardreset_asserted(u8 shift, u8 part, s16 prm_mod, u16 offset); +int omap2_prm_assert_hardreset(u8 shift, u8 part, s16 prm_mod, + u16 offset); +int omap2_prm_deassert_hardreset(u8 rst_shift, u8 st_shift, u8 part, + s16 prm_mod, u16 reset_offset, + u16 st_offset); + +extern int omap2_pwrdm_set_next_pwrst(struct powerdomain *pwrdm, u8 pwrst); +extern int omap2_pwrdm_read_next_pwrst(struct powerdomain *pwrdm); +extern int omap2_pwrdm_read_pwrst(struct powerdomain *pwrdm); +extern int omap2_pwrdm_set_mem_onst(struct powerdomain *pwrdm, u8 bank, + u8 pwrst); +extern int omap2_pwrdm_set_mem_retst(struct powerdomain *pwrdm, u8 bank, + u8 pwrst); +extern int omap2_pwrdm_read_mem_pwrst(struct powerdomain *pwrdm, u8 bank); +extern int omap2_pwrdm_read_mem_retst(struct powerdomain *pwrdm, u8 bank); +extern int omap2_pwrdm_set_logic_retst(struct powerdomain *pwrdm, u8 pwrst); +extern int omap2_pwrdm_wait_transition(struct powerdomain *pwrdm); + +extern int omap2_clkdm_add_wkdep(struct clockdomain *clkdm1, + struct clockdomain *clkdm2); +extern int omap2_clkdm_del_wkdep(struct clockdomain *clkdm1, + struct clockdomain *clkdm2); +extern int omap2_clkdm_read_wkdep(struct clockdomain *clkdm1, + struct clockdomain *clkdm2); +extern int omap2_clkdm_clear_all_wkdeps(struct clockdomain *clkdm); + +#endif /* __ASSEMBLER */ + +/* + * Bits common to specific registers + * + * The 3430 register and bit names are generally used, + * since they tend to make more sense + */ + +/* PM_EVGENONTIM_MPU */ +/* Named PM_EVEGENONTIM_MPU on the 24XX */ +#define OMAP_ONTIMEVAL_SHIFT 0 +#define OMAP_ONTIMEVAL_MASK (0xffffffff << 0) + +/* PM_EVGENOFFTIM_MPU */ +/* Named PM_EVEGENOFFTIM_MPU on the 24XX */ +#define OMAP_OFFTIMEVAL_SHIFT 0 +#define OMAP_OFFTIMEVAL_MASK (0xffffffff << 0) + +/* PRM_CLKSETUP and PRCM_VOLTSETUP */ +/* Named PRCM_CLKSSETUP on the 24XX */ +#define OMAP_SETUP_TIME_SHIFT 0 +#define OMAP_SETUP_TIME_MASK (0xffff << 0) + +/* PRM_CLKSRC_CTRL */ +/* Named PRCM_CLKSRC_CTRL on the 24XX */ +#define OMAP_SYSCLKDIV_SHIFT 6 +#define OMAP_SYSCLKDIV_MASK (0x3 << 6) +#define OMAP_SYSCLKDIV_WIDTH 2 +#define OMAP_AUTOEXTCLKMODE_SHIFT 3 +#define OMAP_AUTOEXTCLKMODE_MASK (0x3 << 3) +#define OMAP_SYSCLKSEL_SHIFT 0 +#define OMAP_SYSCLKSEL_MASK (0x3 << 0) + +/* PM_EVGENCTRL_MPU */ +#define OMAP_OFFLOADMODE_SHIFT 3 +#define OMAP_OFFLOADMODE_MASK (0x3 << 3) +#define OMAP_ONLOADMODE_SHIFT 1 +#define OMAP_ONLOADMODE_MASK (0x3 << 1) +#define OMAP_ENABLE_MASK (1 << 0) + +/* PRM_RSTTIME */ +/* Named RM_RSTTIME_WKUP on the 24xx */ +#define OMAP_RSTTIME2_SHIFT 8 +#define OMAP_RSTTIME2_MASK (0x1f << 8) +#define OMAP_RSTTIME1_SHIFT 0 +#define OMAP_RSTTIME1_MASK (0xff << 0) + +/* PRM_RSTCTRL */ +/* Named RM_RSTCTRL_WKUP on the 24xx */ +/* 2420 calls RST_DPLL3 'RST_DPLL' */ +#define OMAP_RST_DPLL3_MASK (1 << 2) +#define OMAP_RST_GS_MASK (1 << 1) + + +/* + * Bits common to module-shared registers + * + * Not all registers of a particular type support all of these bits - + * check TRM if you are unsure + */ + +/* + * 24XX: RM_RSTST_MPU and RM_RSTST_DSP - on 24XX, 'COREDOMAINWKUP_RST' is + * called 'COREWKUP_RST' + * + * 3430: RM_RSTST_IVA2, RM_RSTST_MPU, RM_RSTST_GFX, RM_RSTST_DSS, + * RM_RSTST_CAM, RM_RSTST_PER, RM_RSTST_NEON + */ +#define OMAP_COREDOMAINWKUP_RST_MASK (1 << 3) + +/* + * 24XX: RM_RSTST_MPU, RM_RSTST_GFX, RM_RSTST_DSP + * + * 2430: RM_RSTST_MDM + * + * 3430: RM_RSTST_CORE, RM_RSTST_EMU + */ +#define OMAP_DOMAINWKUP_RST_MASK (1 << 2) + +/* + * 24XX: RM_RSTST_MPU, RM_RSTST_WKUP, RM_RSTST_DSP + * On 24XX, 'GLOBALWARM_RST' is called 'GLOBALWMPU_RST'. + * + * 2430: RM_RSTST_MDM + * + * 3430: RM_RSTST_CORE, RM_RSTST_EMU + */ +#define OMAP_GLOBALWARM_RST_SHIFT 1 +#define OMAP_GLOBALWARM_RST_MASK (1 << 1) +#define OMAP_GLOBALCOLD_RST_SHIFT 0 +#define OMAP_GLOBALCOLD_RST_MASK (1 << 0) + +/* + * 24XX: PM_WKDEP_GFX, PM_WKDEP_MPU, PM_WKDEP_CORE, PM_WKDEP_DSP + * 2420 TRM sometimes uses "EN_WAKEUP" instead of "EN_WKUP" + * + * 2430: PM_WKDEP_MDM + * + * 3430: PM_WKDEP_IVA2, PM_WKDEP_GFX, PM_WKDEP_DSS, PM_WKDEP_CAM, + * PM_WKDEP_PER + */ +#define OMAP_EN_WKUP_SHIFT 4 +#define OMAP_EN_WKUP_MASK (1 << 4) + +/* + * 24XX: PM_PWSTCTRL_MPU, PM_PWSTCTRL_CORE, PM_PWSTCTRL_GFX, + * PM_PWSTCTRL_DSP + * + * 2430: PM_PWSTCTRL_MDM + * + * 3430: PM_PWSTCTRL_IVA2, PM_PWSTCTRL_CORE, PM_PWSTCTRL_GFX, + * PM_PWSTCTRL_DSS, PM_PWSTCTRL_CAM, PM_PWSTCTRL_PER, + * PM_PWSTCTRL_NEON + */ +#define OMAP_LOGICRETSTATE_MASK (1 << 2) + + +#endif |