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SubjectRe: [RFC PATCH 0/5] MTD: Add Initial Hyperbus support
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On 19/02/19 12:06 PM, Vignesh R wrote:
[...]
>
> Tested on modified TI AM654 EVM with Cypress Hyperflash S26KS512 by
> creating a UBIFS partition and writing and reading files to it.
> Stress tested by writing/reading 16MB flash repeatedly at different
> offsets using dd commmand.
>

Here is the enumeration log from dmesg:
https://pastebin.ubuntu.com/p/Vd5jYQT4FH/

> HyperBus specification can be found at[1]
> HyperFlash datasheet can be found at[2]
> TI's HBMC controller details at[3]
>
> [1] https://www.cypress.com/file/213356/download
> [2] https://www.cypress.com/file/213346/download
> [3] http://www.ti.com/lit/ug/spruid7b/spruid7b.pdf
> Table 12-5741. HyperFlash Access Sequence
>
> Vignesh R (5):
> mtd: cfi_cmdset_0002: Add support for polling status register
> dt-bindings: mtd: Add binding documentation for Hyperbus memory
> devices
> mtd: Add support for Hyperbus memory devices
> dt-bindings: mtd: Add bindings for TI's AM654 Hyperbus memory
> controller
> mtd: hyperbus: Add driver for TI's Hyperbus memory controller
>
> .../bindings/mtd/cypress,hyperbus.txt | 6 +
> .../devicetree/bindings/mtd/ti,am654-hbmc.txt | 27 +++
> MAINTAINERS | 8 +
> drivers/mtd/Kconfig | 2 +
> drivers/mtd/Makefile | 1 +
> drivers/mtd/chips/cfi_cmdset_0002.c | 50 ++++++
> drivers/mtd/hyperbus/Kconfig | 23 +++
> drivers/mtd/hyperbus/Makefile | 4 +
> drivers/mtd/hyperbus/core.c | 167 ++++++++++++++++++
> drivers/mtd/hyperbus/hbmc_am654.c | 105 +++++++++++
> include/linux/mtd/cfi.h | 5 +
> include/linux/mtd/hyperbus.h | 73 ++++++++
> 12 files changed, 471 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/mtd/cypress,hyperbus.txt
> create mode 100644 Documentation/devicetree/bindings/mtd/ti,am654-hbmc.txt
> create mode 100644 drivers/mtd/hyperbus/Kconfig
> create mode 100644 drivers/mtd/hyperbus/Makefile
> create mode 100644 drivers/mtd/hyperbus/core.c
> create mode 100644 drivers/mtd/hyperbus/hbmc_am654.c
> create mode 100644 include/linux/mtd/hyperbus.h
>

--
Regards
Vignesh

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