From: hvaibhav@ti.com (Vaibhav Hiremath)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH-V3 0/3] ARM: OMAP4: Remove hardcoded reg-offs for PWRSTCTRL & PWRSTST
Date: Fri, 3 Feb 2012 17:13:53 +0530 [thread overview]
Message-ID: <1328269436-18668-1-git-send-email-hvaibhav@ti.com> (raw)
This patch series removes the existing hard-coded way of providing
offset to omap4_prminst_xxx API's and instead use offsets
provided in powerdomainsxxxx_data.
Also, hook up AM33XX device support to existing omap4 PRM code.
Background:
==========
PRM module in AM33XX is closer to OMAP4 PRM module, so it complete
sense to reuse all the code from existing OMAP4 implementation.
Having said that, there is a catch here with respect to AM33XX device,
The register offset in PRM module is not consistent
across (crazy IP integration), for example,
PRM_XXX PWRSTCTRL PWRSTST RSTCTRL RSTST
===============================================
PRM_PER_MOD: 0x0C, 0x08, 0x00, 0x04
PRM_WKUP_MOD: 0x04, 0x08, 0x00, 0x0C
PRM_MPU_MOD: 0x00, 0x04, 0x08, NA
PRM_DEVICE_MOD: NA, NA, 0x00, 0x08
So in order to reuse the existing OMAP4 code, we have to add
seperate entry for register offsets, especially
PWRSTCTRL & PWRSTST.
NOTE: Boot tested on AM335x EVM and AM37xEVM
Changes from V2:
- As per Kevin's comment, created separate prm_base table
for am33xx and added __init function for prminst to
initialize prm_base table during boot time.
- Minor comment from Kevin, to add extra line in patch 1/3
Changes from V1:
- As per Kevin's comment, patch is split into logical
commits for ease of review.
- Added specific comment for cpu_is_xxx check order
change.
Vaibhav Hiremath (3):
ARM: OMAP4: Remove hardcoded reg-offs for PWRSTCTRL & PWRSTST
ARM: OMAP4: prminst: Add boot time __init function for prminst
ARM: OMAP: am33xx: Hook-up am33xx support to existing prm code
arch/arm/mach-omap2/io.c | 3 ++
arch/arm/mach-omap2/omap_hwmod.c | 44 +++++++++++++++++++--------
arch/arm/mach-omap2/powerdomain.h | 4 ++
arch/arm/mach-omap2/powerdomain44xx.c | 24 +++++++-------
arch/arm/mach-omap2/powerdomains44xx_data.c | 9 +++++
arch/arm/mach-omap2/prcm44xx.h | 2 +
arch/arm/mach-omap2/prminst44xx.c | 35 ++++++++++++++++-----
arch/arm/mach-omap2/prminst44xx.h | 2 +-
8 files changed, 89 insertions(+), 34 deletions(-)
next reply other threads:[~2012-02-03 11:43 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-03 11:43 Vaibhav Hiremath [this message]
2012-02-03 11:43 ` [PATCH-V3 1/3] ARM: OMAP4: Remove hardcoded reg-offs for PWRSTCTRL & PWRSTST Vaibhav Hiremath
2012-02-03 11:43 ` [PATCH-V3 2/3] ARM: OMAP4: prminst: Add boot time __init function for prminst Vaibhav Hiremath
2012-03-02 10:52 ` Paul Walmsley
2012-02-03 11:43 ` [PATCH-V3 3/3] ARM: OMAP: am33xx: Hook-up am33xx support to existing prm code Vaibhav Hiremath
2012-02-07 10:56 ` [PATCH-V3 0/3] ARM: OMAP4: Remove hardcoded reg-offs for PWRSTCTRL & PWRSTST Hiremath, Vaibhav
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