diff options
author | Paul Walmsley <paul@pwsan.com> | 2012-10-21 11:01:10 +0400 |
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committer | Paul Walmsley <paul@pwsan.com> | 2012-10-21 11:01:10 +0400 |
commit | 498153995b9ff41279be54fc56facb92f5cad793 (patch) | |
tree | 82736e204351bcd198d5dcec3c41deeab1b6779f /arch/arm/mach-omap2/prm3xxx.c | |
parent | 139563ad27e7baad7935b8113940f0d804cf513b (diff) | |
download | linux-498153995b9ff41279be54fc56facb92f5cad793.tar.xz |
ARM: OMAP2+: powerdomain/PRM: move the low-level powerdomain functions into PRM
Move the low-level SoC-specific powerdomain control functions into
prm*.c. For example, OMAP2xxx low-level powerdomain functions go into
prm2xxx.c. Then remove the unnecessary powerdomain*xxx*.c files.
The objective is to centralize low-level PRM register accesses into
the prm*.[ch] files, and then to export an OMAP SoC-independent API to
higher-level OMAP power management code.
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Rajendra Nayak <rnayak@ti.com>
Cc: Vaibhav Hiremath <hvaibhav@ti.com>
Acked-by: Rajendra Nayak <rnayak@ti.com>
Reviewed-by: Russ Dill <Russ.Dill@ti.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Diffstat (limited to 'arch/arm/mach-omap2/prm3xxx.c')
-rw-r--r-- | arch/arm/mach-omap2/prm3xxx.c | 107 |
1 files changed, 106 insertions, 1 deletions
diff --git a/arch/arm/mach-omap2/prm3xxx.c b/arch/arm/mach-omap2/prm3xxx.c index 88f7d8de7da9..e276ff270ac5 100644 --- a/arch/arm/mach-omap2/prm3xxx.c +++ b/arch/arm/mach-omap2/prm3xxx.c @@ -5,6 +5,7 @@ * Copyright (C) 2010 Nokia Corporation * BenoƮt Cousson * Paul Walmsley + * Rajendra Nayak <rnayak@ti.com> * * 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 @@ -22,8 +23,9 @@ #include <plat/prcm.h> #include "vp.h" - +#include "powerdomain.h" #include "prm3xxx.h" +#include "prm2xxx_3xxx.h" #include "cm2xxx_3xxx.h" #include "prm-regbits-34xx.h" @@ -215,6 +217,109 @@ static void __init omap3xxx_prm_enable_io_wakeup(void) PM_WKEN); } +/* Powerdomain low-level functions */ + +/* Applicable only for OMAP3. Not supported on OMAP2 */ +static int omap3_pwrdm_read_prev_pwrst(struct powerdomain *pwrdm) +{ + return omap2_prm_read_mod_bits_shift(pwrdm->prcm_offs, + OMAP3430_PM_PREPWSTST, + OMAP3430_LASTPOWERSTATEENTERED_MASK); +} + +static int omap3_pwrdm_read_logic_pwrst(struct powerdomain *pwrdm) +{ + return omap2_prm_read_mod_bits_shift(pwrdm->prcm_offs, + OMAP2_PM_PWSTST, + OMAP3430_LOGICSTATEST_MASK); +} + +static int omap3_pwrdm_read_logic_retst(struct powerdomain *pwrdm) +{ + return omap2_prm_read_mod_bits_shift(pwrdm->prcm_offs, + OMAP2_PM_PWSTCTRL, + OMAP3430_LOGICSTATEST_MASK); +} + +static int omap3_pwrdm_read_prev_logic_pwrst(struct powerdomain *pwrdm) +{ + return omap2_prm_read_mod_bits_shift(pwrdm->prcm_offs, + OMAP3430_PM_PREPWSTST, + OMAP3430_LASTLOGICSTATEENTERED_MASK); +} + +static int omap3_get_mem_bank_lastmemst_mask(u8 bank) +{ + switch (bank) { + case 0: + return OMAP3430_LASTMEM1STATEENTERED_MASK; + case 1: + return OMAP3430_LASTMEM2STATEENTERED_MASK; + case 2: + return OMAP3430_LASTSHAREDL2CACHEFLATSTATEENTERED_MASK; + case 3: + return OMAP3430_LASTL2FLATMEMSTATEENTERED_MASK; + default: + WARN_ON(1); /* should never happen */ + return -EEXIST; + } + return 0; +} + +static int omap3_pwrdm_read_prev_mem_pwrst(struct powerdomain *pwrdm, u8 bank) +{ + u32 m; + + m = omap3_get_mem_bank_lastmemst_mask(bank); + + return omap2_prm_read_mod_bits_shift(pwrdm->prcm_offs, + OMAP3430_PM_PREPWSTST, m); +} + +static int omap3_pwrdm_clear_all_prev_pwrst(struct powerdomain *pwrdm) +{ + omap2_prm_write_mod_reg(0, pwrdm->prcm_offs, OMAP3430_PM_PREPWSTST); + return 0; +} + +static int omap3_pwrdm_enable_hdwr_sar(struct powerdomain *pwrdm) +{ + return omap2_prm_rmw_mod_reg_bits(0, + 1 << OMAP3430ES2_SAVEANDRESTORE_SHIFT, + pwrdm->prcm_offs, OMAP2_PM_PWSTCTRL); +} + +static int omap3_pwrdm_disable_hdwr_sar(struct powerdomain *pwrdm) +{ + return omap2_prm_rmw_mod_reg_bits(1 << OMAP3430ES2_SAVEANDRESTORE_SHIFT, + 0, pwrdm->prcm_offs, + OMAP2_PM_PWSTCTRL); +} + +struct pwrdm_ops omap3_pwrdm_operations = { + .pwrdm_set_next_pwrst = omap2_pwrdm_set_next_pwrst, + .pwrdm_read_next_pwrst = omap2_pwrdm_read_next_pwrst, + .pwrdm_read_pwrst = omap2_pwrdm_read_pwrst, + .pwrdm_read_prev_pwrst = omap3_pwrdm_read_prev_pwrst, + .pwrdm_set_logic_retst = omap2_pwrdm_set_logic_retst, + .pwrdm_read_logic_pwrst = omap3_pwrdm_read_logic_pwrst, + .pwrdm_read_logic_retst = omap3_pwrdm_read_logic_retst, + .pwrdm_read_prev_logic_pwrst = omap3_pwrdm_read_prev_logic_pwrst, + .pwrdm_set_mem_onst = omap2_pwrdm_set_mem_onst, + .pwrdm_set_mem_retst = omap2_pwrdm_set_mem_retst, + .pwrdm_read_mem_pwrst = omap2_pwrdm_read_mem_pwrst, + .pwrdm_read_mem_retst = omap2_pwrdm_read_mem_retst, + .pwrdm_read_prev_mem_pwrst = omap3_pwrdm_read_prev_mem_pwrst, + .pwrdm_clear_all_prev_pwrst = omap3_pwrdm_clear_all_prev_pwrst, + .pwrdm_enable_hdwr_sar = omap3_pwrdm_enable_hdwr_sar, + .pwrdm_disable_hdwr_sar = omap3_pwrdm_disable_hdwr_sar, + .pwrdm_wait_transition = omap2_pwrdm_wait_transition, +}; + +/* + * + */ + static int __init omap3xxx_prm_init(void) { int ret; |