On 08/01/2014 15:21, Boris BREZILLON wrote:
Hello,
This series add the sunxi NFC support with up to 8 NAND chip connected.
I'm still in the early stages drivers development and some key features are
missing, but it's usable (I tested it on the cubietruck board).
Here's what's missing:
- HW ECC support
- DMA support
- HW randomization support
- many more improvements
This series depends on Emilio's patch series implementing mod0 clks
(http://lists.infradead.org/pipermail/linux-arm-kernel/2013-July/185478.html)
+ an other patch not yet posted
(http://git.elopez.com.ar/linux/commits/5b4eb3ac406b9c98965714d40e8dd6da943d1ab0)
During my reasearch regarding the HW ECC and HW randomizer of the Allwinner
NAND flash controller I found this document describing the Altera NAND
flash controller
(which is in turn based on a cadence IP):
http://www.altera.com/literature/hb/arria-v/av_54010.pdf
This really looks like the sunxi NAND flash controller (except for the
registers positions
and contents) ;-)
Best Regards,
Boris
Boris BREZILLON (9):
mtd: nand: retrieve ECC requirements from Hynix READ ID byte 4
mtd: nand: define struct nand_timings
of: mtd: add NAND timings retrieval support
of: mtd: add NAND timings bindings documentation
mtd: nand: add sunxi NFC support
mtd: nand: add sunxi NFC dt bindings doc
ARM: dt/sunxi: add NFC node to Allwinner A20 SoC
ARM: dt/sunxi: add NFC pinctrl pin definitions
ARM: sunxi/dt: enable NAND on cubietruck board
Documentation/devicetree/bindings/mtd/nand.txt | 34 +
.../devicetree/bindings/mtd/sunxi-nand.txt | 71 ++
arch/arm/boot/dts/sun7i-a20-cubietruck.dts | 33 +
arch/arm/boot/dts/sun7i-a20.dtsi | 35 +
drivers/mtd/nand/Kconfig | 6 +
drivers/mtd/nand/Makefile | 1 +
drivers/mtd/nand/nand_base.c | 37 ++
drivers/mtd/nand/sunxi_nfc.c | 700 ++++++++++++++++++++
drivers/of/of_mtd.c | 47 ++
include/linux/mtd/nand.h | 44 ++
include/linux/of_mtd.h | 9 +
11 files changed, 1017 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mtd/sunxi-nand.txt
create mode 100644 drivers/mtd/nand/sunxi_nfc.c
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