[U-Boot] [RFC] 0/4] Add Pl330 DMA support

[Dinh Nguyen]

Hi,

This patchset adds the PL330 DMA driver to U-Boot. The SoCFPGA platform makes
use of the PL330 to transfer zereos to the SDRAM which enables the ECC bit.

This is only an RFC because after rebasing to v2016.11-rc1, I had to revert
the following patch "a78cd8613204 ARM: Rework and correct barrier definitions"
in order for this patch set to work correctly. With the above patch applied,
after the SDRAM scrubbing is complete, the SPL is failing to find the MMC
device.

I'm continue to debug this, but would like to solicit comments with this
patchset.

Thanks,
Dinh


Dinh Nguyen (4):
  drivers: dma: Add the ARM PL330 DMA driver
  dma: Kconfig: Add CONFIG_PL330_DMA entry
  dm: add DMA_SUPPORTS_DEV_TO_MEM type to DMA_UCLASS
  arm: socfpga: scrub the SDRAM to properly enable ECC support

 arch/arm/include/asm/pl330.h                       | 105 +++
 arch/arm/mach-socfpga/include/mach/reset_manager.h |  21 +
 arch/arm/mach-socfpga/include/mach/sdram.h         |   2 +
 arch/arm/mach-socfpga/spl.c                        |   8 +
 arch/arm/mach-socfpga/wrap_sdram_config.c          |  28 +
 configs/socfpga_cyclone5_defconfig                 |   2 +
 drivers/dma/Kconfig                                |   4 +
 drivers/dma/Makefile                               |   1 +
 drivers/dma/dma-uclass.c                           |   3 +-
 drivers/dma/pl330.c                                | 942 +++++++++++++++++++++
 10 files changed, 1115 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm/include/asm/pl330.h
 create mode 100644 drivers/dma/pl330.c

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2.8.3