Messages in this thread | | | From | Dave Gerlach <> | Subject | [PATCH v5 0/2] memory: Introduce ti-emif-sram driver | Date | Fri, 13 Oct 2017 15:59:13 -0500 |
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Hi, This is v5 of the series introduces a ti-emif-sram driver to be used on am335x and am437x. The previous version of this series can be found here [1].
The only change to this version is to greatly simplify the makefile rules used to generate the emif-asm-offsets header to fix some build issues caught by the kbuild robot. The file has been renamed as ti-emif-asm-offsets.h and is also now placed under include/generated so that it is handled along with the other generated headers.
The macros were left inside the "ti_emif_offsets" inline function in the ti-emif-sram header as they are also needed by the sleep33xx and sleep43xx from the "code (seen here [2]), and describing the build depency on the generated ti-emif-asm-offsets.h file got messy. Just including the macros in the asm-offsets file generated for the arch/arm/mach-omap2 was the cleanest way I could come up with, otherwise ensuring that ti-emif-asm-offsets.h is generated before sleep33/43xx.S gets built was problematic. Of course, I am open to a better idea if someone has one.
This code is required for low-power modes to work on AM335x and AM437x and a forthcoming PM series for those platforms will depend on this series. After both this and the PM series are reviewed I will send the necessary device tree changes for both, but in the meantime all remaining patches for am335x and am437x PM can be found here [3].
Regards, Dave
[1] https://www.spinics.net/lists/arm-kernel/msg607959.html [2] https://www.spinics.net/lists/arm-kernel/msg595934.html [3] https://github.com/dgerlach/linux-pm/tree/upstream/v4.14/amx3-suspend-v5
Dave Gerlach (2): Documentation: dt: Update ti,emif bindings memory: ti-emif-sram: introduce relocatable suspend/resume handlers
.../bindings/memory-controllers/ti/emif.txt | 18 +- drivers/memory/Kconfig | 10 + drivers/memory/Makefile | 13 + drivers/memory/emif-asm-offsets.c | 22 ++ drivers/memory/emif.h | 17 ++ drivers/memory/ti-emif-pm.c | 339 +++++++++++++++++++++ drivers/memory/ti-emif-sram-pm.S | 334 ++++++++++++++++++++ include/linux/ti-emif-sram.h | 144 +++++++++ 8 files changed, 896 insertions(+), 1 deletion(-) create mode 100644 drivers/memory/emif-asm-offsets.c create mode 100644 drivers/memory/ti-emif-pm.c create mode 100644 drivers/memory/ti-emif-sram-pm.S create mode 100644 include/linux/ti-emif-sram.h
-- 2.13.4
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