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

fsl_esdhc: Fix the voltage validation process

2010-12-18T22:15:24Z

The current code use all the voltage range support by the host controller to do the validation. This will cause problem when the host supports Low Voltage Range. Change the validation voltage to be based on board setup. Signed-off-by: Li Yang Tested-by: Stefano Babic Signed-off-by: Kumar Gala

fsl_esdhc: Fix max clock frequency

2010-12-18T22:15:24Z

The max clock of MMC is 52MHz Signed-off-by: Jerry Huang Tested-by: Stefano Babic Signed-off-by: Kumar Gala

fsl_esdhc: Use mmc_set_clock to set initial speed

2010-12-18T22:15:21Z

After booting the u-boot, and first using some SD card (such as Sandisk 2G SD card), because the field 'clock' of struct mmc is zero, this will cause the read transfer is always active and SDHC DATA line is always active, therefore, driver can't handle the next command. Therefore, we use mmc_set_clock to setup both the data structure and HW to the initial clock speed of 400000Hz. Signed-off-by: Jerry Huang Tested-by: Stefano Babic Signed-off-by: Kumar Gala

fsl_esdhc: Set the eSHDC DMACTL[SNOOP] bit after resetting the controller

2010-12-13T15:32:16Z

eSDHC host controller reset results in clearing of snoop bit also. This patch sets the SNOOP bit after the completion of host controller reset. Without this patch mmc reads are not consistent. Signed-off-by: P.V.Suresh Signed-off-by: Kumar Gala

AT91: gen_atmel_mci.c: fix bug when Slot B is used

2010-12-07T15:36:39Z

Signed-off-by: Reinhard Meyer

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