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| author | Gustavo Pimentel <Gustavo.Pimentel@synopsys.com> | 2019-06-04 15:29:26 +0200 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2019-06-10 09:40:39 +0200 |
| commit | 41aaff2a2ac01c5f5415f9de9cd7015ac2b8d569 (patch) | |
| tree | 20d3a2db82eda2c2351a656c4d9227420a9c43d1 /drivers/dma/dw-edma/Makefile | |
| parent | PCI: Add Synopsys endpoint EDDA Device ID (diff) | |
| download | linux-41aaff2a2ac01c5f5415f9de9cd7015ac2b8d569.tar.xz linux-41aaff2a2ac01c5f5415f9de9cd7015ac2b8d569.zip | |
dmaengine: Add Synopsys eDMA IP PCIe glue-logic
Synopsys eDMA IP is normally distributed along with Synopsys PCIe
EndPoint IP (depends of the use and licensing agreement).
This IP requires some basic configurations, such as:
- eDMA registers BAR
- eDMA registers offset
- eDMA registers size
- eDMA linked list memory BAR
- eDMA linked list memory offset
- eDMA linked list memory size
- eDMA data memory BAR
- eDMA data memory offset
- eDMA data memory size
- eDMA version
- eDMA mode
- IRQs available for eDMA
As a working example, PCIe glue-logic will attach to a Synopsys PCIe
EndPoint IP prototype kit (Vendor ID = 0x16c3, Device ID = 0xedda),
which has built-in an eDMA IP with this default configuration:
- eDMA registers BAR = 0
- eDMA registers offset = 0x00001000 (4 Kbytes)
- eDMA registers size = 0x00002000 (8 Kbytes)
- eDMA linked list memory BAR = 2
- eDMA linked list memory offset = 0x00000000 (0 Kbytes)
- eDMA linked list memory size = 0x00800000 (8 Mbytes)
- eDMA data memory BAR = 2
- eDMA data memory offset = 0x00800000 (8 Mbytes)
- eDMA data memory size = 0x03800000 (56 Mbytes)
- eDMA version = 0
- eDMA mode = EDMA_MODE_UNROLL
- IRQs = 1
This driver can be compile as built-in or external module in kernel.
To enable this driver just select DW_EDMA_PCIE option in kernel
configuration, however it requires and selects automatically DW_EDMA
option too.
Signed-off-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
Cc: Vinod Koul <vkoul@kernel.org>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Russell King <rmk+kernel@armlinux.org.uk>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Joao Pinto <jpinto@synopsys.com>
Signed-off-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/dma/dw-edma/Makefile')
| -rw-r--r-- | drivers/dma/dw-edma/Makefile | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/dma/dw-edma/Makefile b/drivers/dma/dw-edma/Makefile index 0c53033cc5ae..8d45c0d5689d 100644 --- a/drivers/dma/dw-edma/Makefile +++ b/drivers/dma/dw-edma/Makefile @@ -4,3 +4,4 @@ obj-$(CONFIG_DW_EDMA) += dw-edma.o dw-edma-$(CONFIG_DEBUG_FS) := dw-edma-v0-debugfs.o dw-edma-objs := dw-edma-core.o \ dw-edma-v0-core.o $(dw-edma-y) +obj-$(CONFIG_DW_EDMA_PCIE) += dw-edma-pcie.o |