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Roger Quadros authored
If a NAND device is not really present or pin muxes are not correctly configured we can lock up the kernel waiting infinitely for NAND_STATUS to be ready. This can be easily reproduced on TI's DRA7-evm board by booting it without NAND support in u-boot and disabling NAND pin muxes in the kernel. Add timeout when waiting for NAND_CMD_RESET completion. As per ONFi v4.0 tRST can be upto 250ms for EZ-NAND and 5ms for raw NAND. Signed-off-by:
Roger Quadros <rogerq@ti.com> Tested-by:
Nishanth Menon <nm@ti.com> Signed-off-by:
Brian Norris <computersforpeace@gmail.com>
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