From: Abdellatif El Khlifi abdellatif.elkhlifi@arm.com
Adding block storage emulation for NVM XIP flash devices.
Some paltforms such as Corstone-1000 need to see NVM XIP raw flash as a block storage device with read only capability.
Here NVM flash devices are devices with addressable memory (e.g: QSPI NOR flash).
The NVM XIP block storage emulation provides the following features:
- Emulate NVM XIP raw flash as a block storage device with read only capability - Being generic by design and can be used by any platform - Device tree node - Platforms can use multiple NVM XIP devices at the same time by defining a DT node for each one of them - A generic NVMXIP block driver allowing to read from the XIP flash - A generic NVMXIP QSPI driver - Implemented on top of memory-mapped IO (using readq macro) - Enabling NVMXIP in sandbox64 - A sandbox test case - Enabling NVMXIP in Corstone1000 platform as a use case
For more details please refer to the readme [A].
[A]: doc/develop/driver-model/nvmxip.rst
Cheers, Abdellatif
Cc: Tom Rini trini@konsulko.com Cc: Simon Glass sjg@chromium.org Cc: Drew Reed Drew.Reed@arm.com Cc: Xueliang Zhong Xueliang.Zhong@arm.com
Abdellatif El Khlifi (6): drivers/nvmxip: introduce NVM XIP block storage emulation sandbox64: fix: return unsigned long in readq() sandbox64: add support for NVMXIP QSPI corstone1000: add NVM XIP QSPI device tree node corstone1000: enable NVM XIP QSPI flash sandbox64: add a test case for UCLASS_NVMXIP
MAINTAINERS | 8 ++ arch/arm/dts/corstone1000.dtsi | 9 +- arch/sandbox/cpu/cpu.c | 2 +- arch/sandbox/dts/sandbox64.dts | 13 ++ arch/sandbox/dts/test.dts | 14 +++ arch/sandbox/include/asm/io.h | 2 +- configs/corstone1000_defconfig | 1 + configs/sandbox64_defconfig | 1 + doc/develop/driver-model/index.rst | 1 + doc/develop/driver-model/nvmxip.rst | 70 +++++++++++ doc/device-tree-bindings/nvmxip/nvmxip.txt | 56 +++++++++ drivers/Kconfig | 2 + drivers/Makefile | 1 + drivers/block/blk-uclass.c | 1 + drivers/nvmxip/Kconfig | 19 +++ drivers/nvmxip/Makefile | 8 ++ drivers/nvmxip/nvmxip-uclass.c | 15 +++ drivers/nvmxip/nvmxip.c | 133 +++++++++++++++++++++ drivers/nvmxip/nvmxip.h | 51 ++++++++ drivers/nvmxip/nvmxip_qspi.c | 67 +++++++++++ include/dm/uclass-id.h | 1 + test/dm/Makefile | 5 + test/dm/nvmxip.c | 117 ++++++++++++++++++ 23 files changed, 594 insertions(+), 3 deletions(-) create mode 100644 doc/develop/driver-model/nvmxip.rst create mode 100644 doc/device-tree-bindings/nvmxip/nvmxip.txt create mode 100644 drivers/nvmxip/Kconfig create mode 100644 drivers/nvmxip/Makefile create mode 100644 drivers/nvmxip/nvmxip-uclass.c create mode 100644 drivers/nvmxip/nvmxip.c create mode 100644 drivers/nvmxip/nvmxip.h create mode 100644 drivers/nvmxip/nvmxip_qspi.c create mode 100644 test/dm/nvmxip.c