mbox series

[0/2] Add NAND support for SDX55

Message ID 20201126085705.48399-1-manivannan.sadhasivam@linaro.org
Headers show
Series Add NAND support for SDX55 | expand

Message

Manivannan Sadhasivam Nov. 26, 2020, 8:57 a.m. UTC 
Hello,

This series adds NAND controller support for SDX55 platform. SDX55 uses
QPIC IP v2 which slightly differs from the former ones. The difference
in the driver is handled by using 'qpic_v2' flag.

The major difference in QPIC IP v2 is the DEV_CMD* registers which got
moved to operational state, and access to them seems restricted. So in the
driver, access to DEV_CMD* registers is excluded. For reading the ONFI
parameters, a separate field 'OP_PAGE_READ_ONFI_READ' in 'NAND_FLASH_CMD'
register is used.

This series has been tested on SDX55 MTP along with the SMEM partition
parser [1].

Thanks,
Mani

[1] https://lore.kernel.org/patchwork/cover/1340600/

Manivannan Sadhasivam (2):
  dt-bindings: qcom_nandc: Add SDX55 QPIC NAND documentation
  mtd: rawnand: qcom: Add NAND controller support for SDX55

 .../devicetree/bindings/mtd/qcom_nandc.txt    |  2 +
 drivers/mtd/nand/raw/qcom_nandc.c             | 68 ++++++++++++++-----
 2 files changed, 53 insertions(+), 17 deletions(-)

Comments

Rob Herring (Arm) Dec. 8, 2020, 4:08 p.m. UTC | #1 
On Thu, 26 Nov 2020 14:27:04 +0530, Manivannan Sadhasivam wrote:
> Qualcomm SDX55 uses QPIC NAND controller version 2.0.0 with BAM DMA
> Engine.
> 
> Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
> ---
>  Documentation/devicetree/bindings/mtd/qcom_nandc.txt | 2 ++
>  1 file changed, 2 insertions(+)
> 

Acked-by: Rob Herring <robh@kernel.org>