u-boot.git/drivers/mtd/spi, branch v2016.03

sf: Correct data types in stm_is_locked_sr()

2016-03-12T14:25:42Z

The stm_is_locked_sr() function is picked from Linux kernel. For reason unknown, the 64bit data types used by the function and present in Linux were replaced with 32bit unsigned ones, which causes trouble. The testcase performed was done using ST M25P80 chip. The command used was: => sf protect unlock 0 0x10000 The call chain starts in stm_unlock(), which calls stm_is_locked_sr() with negative ofs argument. This works fine in Linux, where the "ofs" is loff_t, which is signed long long, while this fails in U-Boot, where "ofs" is u32 (unsigned int). Because of this signedness problem, the expression past the return statement to be incorrectly evaluated to 1, which in turn propagates back to stm_unlock() and results in -EINVAL. The correction is very simple, just use the correctly sized data types with correct signedness in the function to make it work as intended. Signed-off-by: Marek Vasut Cc: Simon Glass Reviewed-by: Jagan Teki

spi: Correct two error return values

2016-02-26T15:53:10Z

When an error number is provided we should use it, not change it. This fixes the SPI and SPI flash tests. One of these is long-standing. The other seems to have been introduced by commit 1e90d9fd (sf: Move read_id code to sf_ops). Signed-off-by: Simon Glass Fixes: 1e90d9fd (sf: Move read_id code to sf_ops) Reviewed-by: Jagan Teki Tested-by: Jagan Teki

sandbox: spi: Remove an incorrect free()

2016-02-26T15:53:10Z

We must not free data that is managed by driver mode. Remove this line, which is a hangover from the pre-driver-model code. This fixes a problem where 'sf probe' crashes U-Boot if the backing file for the SPI flash cannot be found. Signed-off-by: Simon Glass Reviewed-by: Jagan Teki Tested-by: Jagan Teki Reviewed-by: Tom Rini

sandbox: spi: Add more debugging to SPI emulation

2016-02-26T15:53:10Z

Add a little more debugging to help when things go wrong. Signed-off-by: Simon Glass Reviewed-by: Jagan Teki Tested-by: Jagan Teki

sf: spi_flash: use dma to copy data from mmap region if platform supports

2016-02-23T10:44:46Z

Add dma memcpy api to the default spi_flash_copy_mmap(), so that dma will be used to copy data when CONFIG_DMA is defined for the platform. Signed-off-by: Mugunthan V N Reviewed-by: Simon Glass Reviewed-by: Jagan Teki

spi: Correct device tree usage in spi_flash_decode_fdt()

2016-01-22T03:42:35Z

This function currently searches the entire device tree for a node that it thinks is relevant. But the node is known and is passed in. Correct the code and enable it only with driver model, since only driver-model boards will use it. This avoids bringing in a large number of strings from fdtdec. Signed-off-by: Simon Glass

dm: spi_flash: Allow the uclass to work without printf()

2016-01-15T12:39:27Z

For SPL we don't really need sprintf() and with tiny-printf this is not available. Allow this to be dropped in SPL when using tiny-printf. Signed-off-by: Simon Glass

sf: Make IO modes at last in read modes

2016-01-13T13:17:27Z

SLOW, FAST, DUAL, DUAL_IO, QUAD, QUAD_IO changed order to SLOW, FAST, DUAL, QUAD, DUAL_IO, QUAD_IO Cc: Simon Glass Cc: Michal Simek Cc: Siva Durga Prasad Paladugu Tested-by: Jagan Teki Reviewed-by: Bin Meng Signed-off-by: Jagan Teki

spi: Rename op_mode_rx to mode_rx

2016-01-13T13:17:26Z

Since spi rx mode macro's are renamed to simple and meaninfull, this patch will rename the respective structure members. Cc: Simon Glass Cc: Bin Meng Cc: Michal Simek Cc: Siva Durga Prasad Paladugu Tested-by: Mugunthan V N Tested-by: Jagan Teki Signed-off-by: Jagan Teki

sf: Write quad bit along with read status

2016-01-13T13:17:26Z

While setting quad bit on spansion, macronix code is writing only particular quad bit this may give wrong functionality with other register bits, So this patch fix the issue where it with write previous read reg status along particular quad bit. Cc: Vignesh R Cc: Mugunthan V N Cc: Simon Glass Cc: Bin Meng Cc: Michal Simek Cc: Siva Durga Prasad Paladugu Signed-off-by: Jagan Teki