Sriram V wrote:
Hi,
Here are my observations on omap3evm.
Sriram,
Thanks for testing!
1) With default config file, The kernel boots. If youre seeing junk
after a certain point while booting. it could be related to your
bootargs console options. (console=ttyS0,115200n8)
I have the same console= bootargs. Are you testing on an ES3 EVM? What
version of the bootloader to you have? Mine reports:
Texas Instruments X-Loader 1.41
[...]
U-Boot 1.1.4 (Jun 5 2008 - 17:53:37)
2) Sometimes i do get the usual omapfb errors.
These are "normal"
3) If i enable cpuidle - the ethernet driver is unable to get an IP
address. So it is unable to mount NFS. If i give a statically assigned
IP in my bootargs. NFS mount also fails. This happens only when cpuidle
is enabled.
4) If i enable SMC debug, i see ethernet interrupts happening, for some
reason. NFS mount/getting a dhcp address fails.
I am not sure if this is a wakeup issue. Sometimes, if i add some
debug prints it works. but this does not work every time.
5) If i boot with rootfs on MMC and with cpu idle enabled. i cannot
ping. cpuidle is somehow effecting the network stuff. I also see some rx
overruns. is this a wakeup issue?
I have not done any testing with ethernet, only initramfs or MMC rootfs.
This is indeed a wakeup issue. The GPIO IRQ for smc91x is not
currently set as a wakeup source, so ethernet activity will not wakeup
the system, thus causing delays and other problems.
Can you try with rootfs on MMC, but with no ethernet (add ip=none to
cmdline.) Then try suspend/resume etc.
Kevin
On Wed, Jan 14, 2009 at 10:09 PM, Kevin Hilman
<khilman@xxxxxxxxxxxxxxxxxxx <mailto:khilman@xxxxxxxxxxxxxxxxxxx>> wrote:
> Sriram V wrote:
>>
>> Hi,
>> OMAP3EVM. all domains hit retention in suspend.
>>
>> On enabling cpuidle, network and mmc is not stable. network is
>> unable to get an IP address.
>
> Sriram,
>
> Can you send me your .config for omap3evm? I'm trying to get my recently
> received EVM working but I am getting lots of garbage on the serial
console
> on linux-omap HEAD and PM branch on omap3evm. Do you have any additional
> patches for EVM that you're using?
>
> Kevin
>
>
>>
>> On Wed, Jan 14, 2009 at 3:21 AM, Kevin Hilman
>> <khilman@xxxxxxxxxxxxxxxxxxx <mailto:khilman@xxxxxxxxxxxxxxxxxxx>>
wrote:
>>>
>>> Hello,
>>>
>>> The latest PM branch is now available[1].
>>>
>>> I've done basic testing of retention and off-mode (suspend and dynamic
>>> idle) on Beagle and custom HW. My SDP has something still keeping
>>> CORE active that others have not seen, but I have yet to debug. Any
>>> other reports from SDP testing would be appreciated.
>>>
>>> Notable changes/updates
>>> - rebased on latest clock updates and fixes from Paul
>>> - clockfw pre- and post- notifiers
>>> - DVFS for VDD2
>>>
>>> Full git shortlog below[2]
>>>
>>> Enjoy,
>>>
>>> Kevin
>>>
>>> [1] See branch 'pm' in my git repo:
>>>
git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-omap-pm.git
<http://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-omap-pm.git>
>>> which is also mirrored as the branch 'pm' of the normal linux-omap
>>> repo (but will not sync until 03:30 GMT)
>>>
>>>
>>> [2] git shortlog:
>>>
>>> Carlos Chinea (1):
>>> OMAP3:PM: Update SSI omapdev record
>>>
>>> Jouni Hogander (5):
>>> OMAP3: PM: Use pwrdm_set_next_pwrst instead of set_pwrdm_state in
>>> idle loop
>>> OMAP3: PM: Fix wrong sequence in suspend.
>>> OMAP3: PM: Do not build suspend code if SUSPEND is not enabled
>>> OMAP: PM: Build fails if PM is not enabled
>>> OMAP2: PM: Fix omap2 build
>>>
>>> Kalle Jokiniemi (3):
>>> OMAP: PM: sysfs interface for enabling voltage off in idle
>>> OMAP3: PM: Fix cpu idle init sequencing
>>> OMAP: SRF: Fixes to shared resource framework (Ver.3)
>>>
>>> Kevin Hilman (4):
>>> OMAP3: PM: CPUidle: obey enable_off_mode flag
>>> OMAP3: PM: CPUidle: restrict C-states on UART activity
>>> OMAP3: PM: decouple PER and CORE context save and restore
>>> OMAP2/3: PM: system_rev -> omap_rev()
>>>
>>> Paul Walmsley (29):
>>> OMAP2/3 clock: implement clock notifier infrastructure
>>> OMAP clock: add notifier infrastructure
>>> OMAP2/3 clock: store planned clock rates into temporary rate
storage
>>> OMAP2/3 clock: add clk post-rate-change notifiers
>>> OMAP2/3 clock: add clock pre-rate-change notification
>>> OMAP2/3 clock: add clock prepare-rate-change notifications
>>> OMAP2/3 clock: add clock abort-rate-change notifications
>>> OMAP2/3 PM: create the OMAP PM interface and add a default OMAP PM
>>> no-op layer.
>>> OMAP2/3 omapdev: add basic omapdev structure
>>> OMAP242x omapdev: add OMAP242x omapdev records
>>> OMAP243x omapdev: add OMAP243x omapdev records
>>> OMAP3xxx omapdev: add OMAP3xxx omapdev records
>>> OMAP2/3 omapdev: add code to walk the omapdev records
>>> ARM: MMU: add a Non-cacheable Normal executable memory type
>>> OMAP3 SRAM: mark OCM RAM as Non-cacheable Normal memory
>>> OMAP3 SRAM: add ARM barriers to omap3_sram_configure_core_dpll
>>> OMAP3 clock: add interconnect barriers to CORE DPLL M2 change
>>> OMAP3 SRAM: clear the SDRC PWRENA bit during SDRC frequency change
>>> OMAP3 SDRC: Add 166MHz, 83MHz SDRC settings for the BeagleBoard
>>> OMAP3 SDRC: initialize SDRC_POWER at boot
>>> OMAP3 SRAM: renumber registers to make space for argument passing
>>> OMAP3 clock: only unlock SDRC DLL if SDRC clk < 83MHz
>>> OMAP3 clock: use pr_debug() rather than pr_info() in some clock
>>> change code
>>> OMAP3 clock: remove wait for DPLL3 M2 clock to stabilize
>>> OMAP3 clock: initialize SDRC timings at kernel start
>>> OMAP3 clock: add a short delay when lowering CORE clk rate
>>> OMAP3 clock/SDRC: program SDRC_MR register during SDRC clock change
>>> OMAP3 SRAM: add more comments on the SRAM code
>>> OMAP3 SRAM: convert SRAM code to use macros rather than magic
numbers
>>>
>>> Peter 'p2' De Schrijver (12):
>>> OMAP: PM counter infrastructure.
>>> OMAP: PM: Hook into PM counters
>>> OMAP: PM: Add closures to clkdm_for_each and pwrdm_for_each.
>>> OMAP: PM: Add pm-debug counters
>>> OMAP: PM debug: make powerdomains use PM-debug counters
>>> OMAP: PM: Add definitions for ETK pads and observability registers
>>> OMAP: Debug observability and ETK padconf implementation
>>> OMAP: Add debug observablity (debobs) Kconfig item
>>> OMAP: PM: Implement get_last_off_on_transaction_id()
>>> Save sram context after changing MPU, DSP or core clocks
>>> Fix omap_getspeed.
>>> Make sure omap cpufreq driver initializes after cpufreq
framework and
>>> governors
>>>
>>> Rajendra Nayak (35):
>>> OMAP3: PM: GPMC context save/restore
>>> OMAP3: PM: GPIO context save/restore
>>> OMAP3: PM: I2C context save/restore
>>> OMAP3: PM: INTC context save/restore
>>> OMAP3: PM: PRCM context save/restore
>>> OMAP3: PM: Populate scratchpad contents
>>> OMAP3: PM: SCM context save/restore
>>> OMAP3: PM: SRAM restore function
>>> OMAP3: PM: handle PER/NEON/CORE in idle
>>> OMAP3: PM: Restore MMU table entry
>>> OMAP3: PM: MPU off-mode support
>>> OMAP3: PM: CORE domain off-mode support
>>> OMAP3: PM: allow runtime enable/disable of OFF mode
>>> OMAP3: 3430SDP minimal kernel defconfig
>>> OMAP3: PM: CPUidle: Basic support for C1-C2
>>> OMAP3: PM: CPUidle: Enables state C4
>>> OMAP3: PM: CPUidle: Enables C3 and C5
>>> OMAP3: PM: CPUidle: Safe-state on bm-activity
>>> OMAP3 SRF: Generic shared resource f/w
>>> OMAP3 SRF: MPU/CORE/PD latency modeling
>>> OMAP3 SRF: omap3 srf driver
>>> OMAP3 SRF: OMAP PM srf implementation
>>> OMAP3 SRF: Add CORE rate table param in OMAP-PM
>>> OMAP3 SRF: Add VDD1/VDD2 rate tables for 3430SDP
>>> OMAP3 SRF: Add virt clk nodes for VDD1/VDD2
>>> OMAP3 SRF: Adds OPP/Freq res's in SRF
>>> OMAP3 SRF: Update OMAP-PM layer
>>> OMAP3 SRF: Voltage scaling support
>>> OMAP3 SRF: VDD2 scaling support
>>> OMAP3 SRF: Adds sysfs control for VDD1/VDD2 OPP's
>>> OMAP3 PM: Replace spinlocks with mutex in SRF
>>> OMAP3 PM: CPUFreq driver for OMAP3
>>> OMAP3 PM: Update the min defconfig for 3430sdp
>>> OMAP3 SRF: Fix crash on non-3430SDP platforms with DVFS/CPUFreq
>>> OMAP3: PM: Scale VDD2 OPP for VDD1 OPP3 and higher
>>>
>>> Tero Kristo (26):
>>> OMAP: PM debug: do not print out status for meta powerdomains
(dpll*)
>>> OMAP: PM debug: Add PRCM register dump support
>>> OMAP: PM: DMA context save / restore
>>> OMAP: PM: off-mode support for DMA on EMU/HS devices
>>> OMAP3: SRAM size fix for HS/EMU devices
>>> OMAP3 PM: off-mode support for HS/EMU devices
>>> OMAP3: PM: Enable SDRAM auto-refresh during sleep
>>> OMAP: SDRC: Add new register definitions for SDRAM controller
>>> OMAP3: PM: SDRC auto-refresh workaround for off-mode
>>> PM: Added three PLL registers to the PRCM context save
>>> PM: Changed secure RAM storage size from 0x8000 to 0x803F
>>> PM: Added suspend target state control to debugfs for OMAP3
>>> OMAP3: PM: Prevent PER from going OFF when CORE is going INA
>>> PM OMAP3: Change omap3_save_secure_ram to be called only during
init
>>> OMAP3: PM: MPU and CORE should stay awake if there is CAM domain
>>> ACTIVE
>>> OMAP3: GPIO fixes for off-mode
>>> PM: OMAP3: Refreshed DVFS VDD1 control against latest clock fw
>>> OMAP3: Add support for DPLL3 divisor values higher than 2
>>> OMAP3: PM: Fixed VDD2 control to work from both sysfs and SRF API
>>> OMAP3: PM: Added DVFS OPP locking interface for VDD1 and VDD2
>>> OMAP3: Fix rate calculation bug in omap3_select_table_rate
>>> OMAP3: PM: Prevented DVFS state switches when enabling off-mode
>>> OMAP3: PM: Enable VDD2 OPP1
>>> OMAP3: PM: Fix linker error without CONFIG_PM option
>>> PM: OMAP3: Removed a couple of unused variables from DVFS code
>>> PM: OMAP3: Added support for possibly failing clk_set_rate to DVFS
>>>
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