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ARM: OMAP2+: powerdomain/PRM: move the low-level powerdomain functions into PRM

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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>
This commit is contained in:
Paul Walmsley
2012-10-21 01:01:10 -06:00
parent 139563ad27
commit 498153995b
10 changed files with 739 additions and 758 deletions
Download Patch File Download Diff File Expand all files Collapse all files

107
arch/arm/mach-omap2/prm3xxx.c
View File

@@ -5,6 +5,7 @@
* Copyright (C) 2010 Nokia Corporation
* Benoît 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;