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  1. 30 6月, 2010 7 次提交
  3. 28 6月, 2010 4 次提交
  5. 24 6月, 2010 5 次提交
  7. 23 6月, 2010 12 次提交
  9. 22 6月, 2010 2 次提交
    • N
      Davinci: SPI performance enhancements · 77436d66
      由 Nick Thompson 提交于 
      The following restructuring and optimisations increase the SPI
read performance from 1.3MiB/s (on da850) to 2.87MiB/s (on da830):

Remove continual revaluation of driver state from the core of the
copy loop. State can not change during the copy loop, so it is
possible to move these evaluations to before the copy loop.

Cost is more code space as loop variants are required for each set
of possible configurations. The loops are simpler however, so the
extra is only 128bytes on da830 with CONFIG_SPI_HALF_DUPLEX
defined.

Unrolling the first copy loop iteration allows the TX buffer to be
pre-loaded reducing SPI clock starvation.

Unrolling the last copy loop iteration removes testing for the
final loop iteration every time round the loop.

Using the RX buffer empty flag as a transfer throttle allows the
assumption that it is always safe to write to the TX buffer, so
polling of TX buffer full flag can be removed.
Signed-off-by: NNick Thompson <nick.thompson@ge.com>
Signed-off-by: NSandeep Paulraj <s-paulraj@ti.com>
      77436d66
    • P
      DaVinci: EMAC: Get EMAC_MDIO_PHY_NUM from config files · e6441c4f
      由 Prakash PM 提交于 
      Currently EMAC_MDIO_PHY_NUM is defined as 1 in emac_defs.h.
Because of this, EMAC does not work on EVMs which do not have phy
connected at 1. Moving the macro to board config file makes this
configurable depending on where the phy is connected on the MDIO bus.

This patch fixes the board reset issue observed during network access
on DM365EVM. EMAC driver was assuming EMAC_MDIO_PHY_NUM as 1
but it is 0 on DM365EVM.

This patch is verified on da830/omap-l137, dm365 and dm644x evms.
Signed-off-by: NPrakash PM <prakash.pm@ti.com>
Signed-off-by: NSandeep Paulraj <s-paulraj@ti.com>
      e6441c4f
  11. 21 6月, 2010 2 次提交
  13. 20 6月, 2010 2 次提交
    • W
      net/eth.c: eth_mac_skip() is only needed when CONFIG_NET_MULTI is set · 9c00b2f0
      由 Wolfgang Denk 提交于 
      Move it inside the #ifdef CONFIG_NET_MULTI to avoid

	eth.c:64: warning: 'eth_mac_skip' defined but not used

messages from anumber of old, non-CONFIG_NET_MULTI boards.
Signed-off-by: NWolfgang Denk <wd@denx.de>
Cc: Ben Warren <biggerbadderben@gmail.com>
      9c00b2f0
    • W
      include/compiler.h: remove redundant declaration of errno · 9312bba0
      由 Wolfgang Denk 提交于 
      Commit 37566090 "compiler.h: unify system ifdef cruft here" added both
a "#include <errno.h>" and a "extern int errno;" to include/compiler.h
which is causing build warnings for some systems, for example for the
"netstar" board:

	In file included from /home/wd/git/u-boot/work/lib/crc32.c:15:
	include/compiler.h:28: warning: function declaration isn't a prototype

The declaration of "errno" should be redundant, as <errno.h> is
supposed to provide a correct declaration, so drop it.
Signed-off-by: NWolfgang Denk <wd@denx.de>
Cc: Mike Frysinger <vapier@gentoo.org>
      9312bba0
  15. 18 6月, 2010 6 次提交