This patchset introduces Qualcomm's shared memory manager. In U-boot context, it will allow reading board specific information (IE. RAM address, RAM size) that was prepopulated by the SBL.
As part of the patchset a new uclass id is introduced, UCLASS_SMEM.
Changes in v5: (As suggested by Simon Glass) - Add more documentation to smem.h describing item/host parameters.
Changes in v4: - Fixed typo in function name.
Changes in v3: (As suggested by Simon Glass) - Fixed line wrap - Fixed smem_get_free_space() interface to match smem_get_free_space() - Added more documentation to ops. - Removed license, SPDX is enough. - Text and grammar fixes. - Adapt to smem_get_free_space() new interface in series 3.
Changes in v2: (As suggested by Simon Glass) - Introduced a new dm class (CLASS_SMEM) instead of CLASS_SOC. - Added sandbox driver - Added testing for DM class. - Applied checkpatch fixes (also sent these to Linux upstream) - Changed UCLASS_SOC to UCLASS_SMEM - Removed function exports and registered functionality through .ops
Ramon Fried (6): dm: SMEM (Shared memory) uclass soc: qualcomm: Add Shared Memory Manager driver dts: db410c: added smem nodes dts: db820c: added smem nodes drivers: smem: sandbox test: smem: add basic smem test
MAINTAINERS | 1 + arch/arm/Kconfig | 2 + arch/arm/dts/dragonboard410c-uboot.dtsi | 5 + arch/arm/dts/dragonboard410c.dts | 16 + arch/arm/dts/dragonboard820c-uboot.dtsi | 4 + arch/arm/dts/dragonboard820c.dts | 16 + arch/sandbox/dts/test.dts | 4 + configs/sandbox64_defconfig | 2 + configs/sandbox_defconfig | 2 + drivers/Kconfig | 2 + drivers/Makefile | 1 + drivers/smem/Kconfig | 24 + drivers/smem/Makefile | 7 + drivers/smem/msm_smem.c | 932 ++++++++++++++++++++++++ drivers/smem/sandbox_smem.c | 45 ++ drivers/smem/smem-uclass.c | 45 ++ include/dm/uclass-id.h | 1 + include/smem.h | 91 +++ test/dm/Makefile | 1 + test/dm/smem.c | 28 + 20 files changed, 1229 insertions(+) create mode 100644 drivers/smem/Kconfig create mode 100644 drivers/smem/Makefile create mode 100644 drivers/smem/msm_smem.c create mode 100644 drivers/smem/sandbox_smem.c create mode 100644 drivers/smem/smem-uclass.c create mode 100644 include/smem.h create mode 100644 test/dm/smem.c