[U-Boot] [PATCH 00/11] ti: k3-udma: Add support for J721e

Vignesh Raghavendra vigneshr at ti.com
Thu Nov 14 09:14:21 UTC 2019

This series adds DMA support for J721e using exist K3 UDMA driver.

One main change is thati, on J721e, DMA resources such as DMA channels are
shared between different entities running on different cores of the SoC.
Therefore, U-Boot running on A72 core should request range of resources
allocated to it from centralized resource management core (DMSC) and use
only the allocated resource.

First two patches adds support for dynamically querying and using
allocated resources. Remaining patches fix issues when using UDMA driver
on a 32 bit core like R5. Last patch adds a new compatible for J721e

Vignesh Raghavendra (11):
  lib: Import few bitmap functions from Linux
  dma: ti: k3-udma: Query DMA channels allocated from Resource Manager
  soc: ti: k3-navss-ringacc: Flush/invalidate caches on ring push/pop
  soc: ti: k3-navss-ringacc: Get SYSFW reference from DT phandle
  dma: ti: k3-udma: Get SYSFW reference from DT phandle
  dma: ti: k3-udma: Remove coherency check for cache ops
  dma: ti: k3-udma: Fix debug prints during enabling MEM_TO_DEV
  dma: ti: k3-udma: Switch to exposed ring mode
  dma: ti: k3-udma: Fix ring push operation for 32 bit cores
  dma: ti: k3-udma: Fix build warnings when building for 32 bit
  dma: ti: k3-udma: Add new compatible to J721e

 drivers/dma/ti/k3-udma-hwdef.h    |  19 +++
 drivers/dma/ti/k3-udma.c          | 255 ++++++++++++++++++++++--------
 drivers/soc/ti/k3-navss-ringacc.c |  13 +-
 include/linux/bitmap.h            | 133 ++++++++++++++++
 include/linux/bitops.h            |  12 ++
 5 files changed, 362 insertions(+), 70 deletions(-)


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