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1. If nand-ecc-strength specified in DT, then controller will use
this ECC strength otherwise ECC strength will be calculated
according to chip requirement and available OOB size.
2. QCOM NAND controller supports only one step size (512 bytes) but
nand-ecc-step-size is required property in DT. This DT property
can be removed and ecc step size can be assigned in driver with
512 bytes value.
Signed-off-by: Abhishek Sahu <absahu@codeaurora.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
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Qualcom IPQ8074 SoC uses QPIC NAND controller version 1.5.0
which uses BAM DMA Engine.
Signed-off-by: Abhishek Sahu <absahu@codeaurora.org>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
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1. Qualcom IPQ4019 SoC uses QPIC NAND controller version 1.4.0
which uses BAM DMA Engine while IPQ806x uses EBI2 NAND
which uses ADM DMA Engine.
2. QPIC NAND will 3 BAM channels: command, data tx and data rx
while EBI2 NAND uses only single ADM channel.
3. CRCI is only required for ADM DMA and its not required for
BAM DMA.
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Abhishek Sahu <absahu@codeaurora.org>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
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1. Correct the compatible string for IPQ806x
2. Change the NAND controller and NAND chip nodes name
for more clarity.
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Abhishek Sahu <absahu@codeaurora.org>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
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Currently the compatible “qcom,nandcs” is being used for each
connected NAND device to support for multiple NAND devices in the
same bus. The same thing can be achieved by looking reg property
for each sub nodes which contains the chip select number so this
patch removes the use of “qcom,nandcs” for specifying NAND device
sub nodes.
Since there is no user for this driver currently in so
changing compatible string is safe.
Signed-off-by: Abhishek Sahu <absahu@codeaurora.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
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Add DT bindings document for the Qualcomm NAND controller driver.
Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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Abhishek Sahu
Archit Taneja