u-boot.git/drivers/mmc, branch v2010.12-rc2

mmc: omap: timeout counter fix

2010-11-19T21:27:37Z

Having a loop with a counter is no timing guarentee for timing accuracy or compiler optimizations. For e.g. the same loop counter which runs when the MPU is running at 600MHz will timeout in around half the time when running at 1GHz. or the example where GCC 4.5 compiles with different optimization compared to GCC 4.4. use timer to keep track of time elapse and we use an emperical number - 1sec for a worst case timeout. This should never happen, and is adequate imaginary condition for us to fail with timeout. Signed-off-by: Nishanth Menon Signed-off-by: Sandeep Paulraj

Switch from archive libraries to partial linking

2010-11-17T20:02:18Z

Before this commit, weak symbols were not overridden by non-weak symbols found in archive libraries when linking with recent versions of binutils. As stated in the System V ABI, "the link editor does not extract archive members to resolve undefined weak symbols". This commit changes all Makefiles to use partial linking (ld -r) instead of creating library archives, which forces all symbols to participate in linking, allowing non-weak symbols to override weak symbols as intended. This approach is also used by Linux, from which the gmake function cmd_link_o_target (defined in config.mk and used in all Makefiles) is inspired. The name of each former library archive is preserved except for extensions which change from ".a" to ".o". This commit updates references accordingly where needed, in particular in some linker scripts. This commit reveals board configurations that exclude some features but include source files that depend these disabled features in the build, resulting in undefined symbols. Known such cases include: - disabling CMD_NET but not CMD_NFS; - enabling CONFIG_OF_LIBFDT but not CONFIG_QE. Signed-off-by: Sebastien Carlier

mmc: Add multi-block read support to the generic mmc driver

2010-11-04T19:27:25Z

This patch adds multi-block read support for the generic MMC driver. Large reads are broken into chunks of 65535 blocks to ensure that the code works with controllers having a 16 bit block counter. This patch results in a significant performance improvement. Time to read a 45 MB file went from 36 seconds to 9 seconds on Overo Signed-off-by: Steve Sakoman Tested-by: Steve Sakoman Signed-off-by: Sandeep Paulraj

mmc: Clean up generic mmc driver multi-block write functions

2010-11-04T19:27:21Z

The current mmc write implementation is type ulong, but returns int values. Some of the printf's are terminated with /n/r, one has none. This patch fixes these issues and also removes some unnecessary local variables. Signed-off-by: Steve Sakoman Signed-off-by: Sandeep Paulraj

Merge branch 'master' of git://git.denx.de/u-boot-samsung

2010-10-29T19:47:48Z

Coding Style cleanup

2010-10-27T20:48:30Z

Signed-off-by: Wolfgang Denk

mmc: seperate block number into small parts for multi-write cmd

2010-10-27T18:39:33Z

Constraint the mmc framework to only send no more than 65535 blocks in one go during the multi-write command. This constraint comes due to the limitation of 16bit width block counter register at some hardware. Signed-off-by: Lei Wen Cc: Reinhard Meyer

PXA: pxa-regs.h cleanup

2010-10-19T20:46:22Z

Signed-off-by: Marek Vasut

s5p_mmc: support 8-bit bus width

2010-10-19T02:34:54Z

This Patch do support 8-bit bus width for s5p So we add parameter for bus_width (in s5p_mmc_init(), s5p_mmc_initialize()) If want to use 8-bit bus width, only change (0, 8) instead of (0, 4). Signed-off-by: Jaehoon Chung Signed-off-by: Minkyu Kang Signed-off-by: Kyungmin Park

ARMV7: OMAP: Add new mmc driver compatible with CONFIG_GENERIC_MMC

2010-10-17T18:14:10Z

OMAP boards currently use a legacy mmc driver. This patch adds a new mmc driver which will work with the generic mmc driver in u-boot. This new driver will work with both OMAP3 and OMAP4 boards. This patch does not remove the old driver. It should remain in the tree until all boards that use it switch to the new driver. Signed-off-by: Sukumar Ghorai Tested-by: Steve Sakoman