u-boot.git/drivers/mtd, branch v2012.07-rc1

MTD: SPEAr SMI: Add write support for length < 4 bytes

2012-07-07T12:07:44Z

Needed for redundant environment for example. Signed-off-by: Stefan Roese Cc: Amit Virdi Cc: Vipin Kumar

st_smi: Fixed page size for Winbond W25Q128FV flash

2012-07-07T12:07:39Z

Signed-off-by: Armando Visconti Signed-off-by: Amit Virdi Signed-off-by: Stefan Roese

st_smi: Change timeout loop implementation

2012-07-07T12:07:39Z

There are two problems in the current timeout loop implementation: 1. In case initial test failing, there will always be a delay of 1 ms 2. The delay duration is not tunable The new implementation addresses both these limitations. Signed-off-by: Amit Virdi Signed-off-by: Stefan Roese

st_smi: Fix bug in flash_print_info()

2012-07-07T12:07:39Z

If the flash size was smaller than 1MB then flash_print_info() was erroneously reporting 0 MB. Signed-off-by: Armando Visconti Signed-off-by: Amit Virdi Signed-off-by: Stefan Roese

st_smi: Change the flash probing method

2012-07-07T12:07:39Z

THis patch introduces a new methodology for flash probing in which flash_devices[] table, looked-up thru the dev_id, is used to locate the flash geometry and information. Signed-off-by: Armando Visconti Signed-off-by: Amit Virdi Signed-off-by: Stefan Roese

st_smi: Removed no needed dependency on ST_M25Pxx_ID

2012-07-07T12:07:39Z

Since the smi erase code is very generic and works for any kind of flash, there is no need to test for ST_M25Pxx_ID flash types like m25p40 flashes). Signed-off-by: Armando Visconti Signed-off-by: Amit Virdi Signed-off-by: Stefan Roese

st_smi: Fix smi read status

2012-07-07T12:07:39Z

smi_read_sr fails sometimes because of TFF not getting set within assumed time. This condition may arise because of, for example, smi memory being in a erase mode. This fix is to enable reading the status register until timeout. Signed-off-by: Vipin Kumar Signed-off-by: Amit Virdi Signed-off-by: Stefan Roese

st_smi: Move status register read before modifying ctrl register

2012-07-07T12:07:39Z

Signed-off-by: Shiraz Hashim Signed-off-by: Amit Virdi Signed-off-by: Stefan Roese

st_smi: Read status until timeout happens

2012-07-07T12:07:38Z

SMI driver read status fails because the control register could not be overwritten. Instead, the read status should be tried until timeout. Signed-off-by: Vipin Kumar Signed-off-by: Amit Virdi Signed-off-by: Stefan Roese

st_smi: Enhance the error handling

2012-07-07T12:07:38Z

This commit does the following: - Reports error if SNOR flash is not found on the board - Changes smi_read_sr to return error using which a retry mechanism is implemented for reading flash status Signed-off-by: Vipin Kumar Signed-off-by: Amit Virdi Signed-off-by: Stefan Roese