Re: [PATCH 0/7] omap4: Fixes, hacks for es2.0

[Kevin Hilman <khilman@deeprootsystems.com>]

Santosh Shilimkar <santosh.shilimkar@ti.com> writes:

> This series has few fixes, hacks to get omap4 es2.0 working
> on mainline. The patches are generated against the mainline 
> 2.6.36-rc3. 

Hi Santosh, thanks for this...

> The series is boot tested tested on 4430 SDP, Blaze with 
> omap_4430sdp_defconfig with file over NFS and MMC.
>
> Also boot tested omap3_defconfig with ramdisk on OMAP4 and OMAP3
> SDPs. Same observation with Panda
>
> With omap3_defconfig, MMC while mounting the rootfs over MMC, the
> boot hangs. Same observation with Panda

On my ES2.0 Panda, rootfs on MMC is now working with this series.

However, rootfs over NFS is not yet working, presumably because the
OMAP4 EHCI support is needed for the USB-attached smsc95xx to work properly.

Kevin

> [    5.794616] regulator_init_complete: incomplete constraints, leaving VUSIM on
> [    5.802764] regulator_init_complete: incomplete constraints, leaving VPP on
> [    5.816131] twl_rtc twl_rtc: setting system clock to 2000-01-01 00:53:12 UTC (9      )
> [    5.849304] mmc0: new high speed MMC card at address 0001
> [    5.856323] mmcblk0: mmc0:0001 SEM08G 7.39 GiB
> [    5.862091]  mmcblk0: unknown partition table
> [    6.325500] omap_device: mmci-omap-hs.1: new worst case deactivate latency 0: 6

Based on this message, this is not a mainline kernel, but one where the
omap_device conversion for MMC has been applied.

> [   18.424407] VFS: Cannot open root device "mmcblk0p2" or unknown-block(179,2)
> [   18.431823] Please append a correct "root=" boot option; here are the available      ons:
> [   18.440643] b300         7757824 mmcblk0 driver: mmcblk
> [   18.446166] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown
>
> All these patches are also available at:
> 	http://dev.omapzoom.org/?p=santosh/kernel-omap4-base.git;a=summary
> 	head: omap4-for-tony
>
> David Anders (1):
>   omap4: Panda: Add DEBUG_LL support
>
> Eric Dumazet (1):
>   KS8851: Correct RX packet allocation
>
> Madhusudhan Chikkature (1):
>   omap4: Workaround for CMD line reset.
>
> Santosh Shilimkar (4):
>   omap4: Update id.c and cpu.h for es2.0
>   omap4: Temporary fix silicon version detection
>   omap4: l2x0: Fix init parameter for ES2.0
>   omap4: Fix bootup crash observed with higher CPU clocks
>
>  arch/arm/mach-omap2/id.c                     |   39 +++++++++++++++++++++----
>  arch/arm/mach-omap2/omap4-common.c           |    5 ++-
>  arch/arm/plat-omap/dmtimer.c                 |    2 +-
>  arch/arm/plat-omap/include/plat/cpu.h        |    5 ++-
>  arch/arm/plat-omap/include/plat/uncompress.h |    1 +
>  drivers/mmc/host/omap_hsmmc.c                |    8 +++++
>  drivers/net/ks8851.c                         |   39 ++++++++++++++------------
>  7 files changed, 71 insertions(+), 28 deletions(-)