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OMAP3: PM: Fix for MPU power domain MEM BANK position

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MPU power domain bank 0 bits are displayed in position of bank 1
in PWRSTS and PREPWRSTS registers. So read them from correct
position

Signed-off-by: Thara Gopinath <thara@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
This commit is contained in:
Thara Gopinath 2009-12-08 16:33:15 -07:00 committed by paul
parent 18862cbe47
commit 3863c74b51
3 changed files with 11 additions and 1 deletions
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6
arch/arm/mach-omap2/powerdomain.c
View File

@ -983,6 +983,9 @@ int pwrdm_read_mem_pwrst(struct powerdomain *pwrdm, u8 bank)
if (pwrdm->banks < (bank + 1))
return -EEXIST;
if (pwrdm->flags & PWRDM_HAS_MPU_QUIRK)
bank = 1;
/*
* The register bit names below may not correspond to the
* actual names of the bits in each powerdomain's register,
@ -1030,6 +1033,9 @@ int pwrdm_read_prev_mem_pwrst(struct powerdomain *pwrdm, u8 bank)
if (pwrdm->banks < (bank + 1))
return -EEXIST;
if (pwrdm->flags & PWRDM_HAS_MPU_QUIRK)
bank = 1;
/*
* The register bit names below may not correspond to the
* actual names of the bits in each powerdomain's register,

1
arch/arm/mach-omap2/powerdomains34xx.h
View File

@ -190,6 +190,7 @@ static struct powerdomain mpu_34xx_pwrdm = {
.wkdep_srcs = mpu_34xx_wkdeps,
.pwrsts = PWRSTS_OFF_RET_ON,
.pwrsts_logic_ret = PWRSTS_OFF_RET,
.flags = PWRDM_HAS_MPU_QUIRK,
.banks = 1,
.pwrsts_mem_ret = {
[0] = PWRSTS_OFF_RET,

5
arch/arm/plat-omap/include/plat/powerdomain.h
View File

@ -42,7 +42,10 @@
/* Powerdomain flags */
#define PWRDM_HAS_HDWR_SAR (1 << 0) /* hardware save-and-restore support */
#define PWRDM_HAS_MPU_QUIRK (1 << 1) /* MPU pwr domain has MEM bank 0 bits
* in MEM bank 1 position. This is
* true for OMAP3430
*/
/*
* Number of memory banks that are power-controllable. On OMAP3430, the