[U-Boot] [RFC PATCHv1 0/3] misc: pl310: add a dm cache driver
Dinh Nguyen
dinguyen at kernel.org
Tue Mar 5 19:03:53 UTC 2019
Hello,
I'm soliciting comments of this patchset. The patchset adds a driver
for the cache controller(specifically the PL310). This cache controller
can be found on many ARMv7 SoCs. I don't think it's used on ARMv8
platforms.
This driver will retrieve the cache properties from the board DTS files
and set the corresponding bits in cache controller.
I think we can do something similar without make this driver and placing
the file in /arch/arm/cpu/armv7, but wanted to get feedback.
To-dos:
- Add error checking
- Add more cache properties
Thanks,
Dinh Nguyen (3):
misc: pl310: add a misc driver for the pl310 cache controller
defconfig: socfpga_sockit_defconfig: enable L2X0_CACHE driver
ARM: socfpga: let the pl310 driver configure the cache settings
arch/arm/include/asm/pl310.h | 3 ++
arch/arm/mach-socfpga/misc.c | 15 +-----
configs/socfpga_sockit_defconfig | 2 +
drivers/misc/Kconfig | 7 +++
drivers/misc/Makefile | 1 +
drivers/misc/cache-l2x0.c | 84 ++++++++++++++++++++++++++++++++
6 files changed, 99 insertions(+), 13 deletions(-)
create mode 100644 drivers/misc/cache-l2x0.c
--
2.20.0
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