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  1. 24 11月, 2012 10 次提交
  3. 22 11月, 2012 16 次提交
  5. 16 11月, 2012 4 次提交
  7. 13 11月, 2012 1 次提交
    • F
      ARM: boot: Fix usage of kecho · 2d4d07b9
      由 Fabio Estevam 提交于 
      Since commit edc88ceb (ARM: be really quiet when building with 'make -s') the
following output is generated when building a kernel for ARM:

echo '  Kernel: arch/arm/boot/Image is ready'
  Kernel: arch/arm/boot/Image is ready
  Building modules, stage 2.
echo '  Kernel: arch/arm/boot/zImage is ready'
  Kernel: arch/arm/boot/zImage is ready

As per Documentation/kbuild/makefiles.txt the correct way of using kecho is
'@$(kecho)'.

Make this change so no more unwanted 'echo' messages are displayed.
Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
      2d4d07b9
  9. 09 11月, 2012 1 次提交
  11. 08 11月, 2012 2 次提交
  13. 07 11月, 2012 1 次提交
  15. 06 11月, 2012 2 次提交
  17. 04 11月, 2012 1 次提交
  19. 31 10月, 2012 2 次提交
    • P
      ARM: OMAP4: hwmod data: do not enable or reset the McPDM during kernel init · bc05244e
      由 Paul Walmsley 提交于 
      Resolve this kernel boot message:

omap_hwmod: mcpdm: cannot be enabled for reset (3)

The McPDM on OMAP4 can only receive its functional clock from an
off-chip source.  This source is not guaranteed to be present on the
board, and when present, it is controlled by I2C.  This would
introduce a board dependency to the early hwmod code which it was not
designed to handle.  Also, neither the driver for this off-chip clock
provider nor the I2C code is available early in boot when the hwmod
code is attempting to enable and reset IP blocks.  This effectively
makes it impossible to enable and reset this device during hwmod init.

At its core, this patch is a workaround for an OMAP hardware problem.
It should be possible to configure the OMAP to provide any IP block's
functional clock from an on-chip source.  (This is true for almost
every IP block on the chip.  As far as I know, McPDM is the only
exception.)  If the kernel cannot reset and configure IP blocks, it
cannot guarantee a sane SoC state.  Relying on an optional off-chip
clock also creates a board dependency which is beyond the scope of the
early hwmod code.

This patch works around the issue by marking the McPDM hwmod record
with the HWMOD_EXT_OPT_MAIN_CLK flag.  This prevents the hwmod
code from touching the device early during boot.
Signed-off-by: NPaul Walmsley <paul@pwsan.com>
Cc: Péter Ujfalusi <peter.ujfalusi@ti.com>
Cc: Benoît Cousson <b-cousson@ti.com>
Acked-by: NPeter Ujfalusi <peter.ujfalusi@ti.com>
      bc05244e
    • P
      ARM: OMAP2+: hwmod: add flag to prevent hwmod code from touching IP block during init · 5fb3d522
      由 Paul Walmsley 提交于 
      Add HWMOD_EXT_OPT_MAIN_CLK flag to indicate that this IP block is
dependent on an off-chip functional clock that is not guaranteed to be
present during initialization.  IP blocks marked with this flag are
left in the INITIALIZED state during kernel init.

This is a workaround for a hardware problem.  It should be possible to
guarantee that at least one clock source will be present and active
for any IP block's main functional clock.  This ensures that the hwmod
code can enable and reset the IP block.  Resetting the IP block during
kernel init prevents any bogus bootloader, ROM code, or previous OS
configuration from affecting the kernel.  Hopefully a clock
multiplexer can be added on future SoCs.

N.B., at some point in the future, it should be possible to query the
clock framework for this type of information.  Then this flag should
no longer be needed.
Signed-off-by: NPaul Walmsley <paul@pwsan.com>
Cc: Benoît Cousson <b-cousson@ti.com>
      5fb3d522