Commit Graph

11 Commits

Author SHA1 Message Date
Peng Ma ed5a0ab415 dmaengine: fsl-edma: Add eDMA support for QorIQ LS1028A platform
Our platforms(such as LS1021A, LS1012A, LS1043A, LS1046A, LS1028A) with
below registers(CHCFG0 - CHCFG15) of eDMA as follows:
*-----------------------------------------------------------*
|     Offset   |	OTHERS			|		LS1028A			|
|--------------|--------------------|-----------------------|
|     0x0      |        CHCFG0      |           CHCFG3      |
|--------------|--------------------|-----------------------|
|     0x1      |        CHCFG1      |           CHCFG2      |
|--------------|--------------------|-----------------------|
|     0x2      |        CHCFG2      |           CHCFG1      |
|--------------|--------------------|-----------------------|
|     0x3      |        CHCFG3      |           CHCFG0      |
|--------------|--------------------|-----------------------|
|     ...      |        ......      |           ......      |
|--------------|--------------------|-----------------------|
|     0xC      |        CHCFG12     |           CHCFG15     |
|--------------|--------------------|-----------------------|
|     0xD      |        CHCFG13     |           CHCFG14     |
|--------------|--------------------|-----------------------|
|     0xE      |        CHCFG14     |           CHCFG13     |
|--------------|--------------------|-----------------------|
|     0xF      |        CHCFG15     |           CHCFG12     |
*-----------------------------------------------------------*

This patch is to improve edma driver to fit LS1028A platform.

Signed-off-by: Peng Ma <peng.ma@nxp.com>
Reviewed-by: Robin Gong <yibin.gong@nxp.com>
Link: https://lore.kernel.org/r/20191212033714.4090-1-peng.ma@nxp.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-12-18 11:55:46 +05:30
Robin Gong 232a7f18cf dmaengine: fsl-edma: add i.mx7ulp edma2 version support
Add edma2 for i.mx7ulp by version v3, since v2 has already
been used by mcf-edma.
The big changes based on v1 are belows:
1. only one dmamux.
2. another clock dma_clk except dmamux clk.
3. 16 independent interrupts instead of only one interrupt for
all channels.

Signed-off-by: Robin Gong <yibin.gong@nxp.com>
Link: https://lore.kernel.org/r/1563952834-7731-1-git-send-email-yibin.gong@nxp.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-08-08 17:54:36 +05:30
Vinod Koul 5c274ca4cf dmaengine: Revert "dmaengine: fsl-edma: add i.mx7ulp edma2 version support"
This reverts commit 7144afd025 ("dmaengine: fsl-edma: add i.mx7ulp
edma2 version support") as this fails to build with module option due to
usage of of_irq_count() which is not an exported symbol as kernel
drivers are *not* expected to use it (rightly so).

Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-07-08 09:44:45 +05:30
Robin Gong 7144afd025 dmaengine: fsl-edma: add i.mx7ulp edma2 version support
Add edma2 for i.mx7ulp by version v3, since v2 has already
been used by mcf-edma.
The big changes based on v1 are belows:
1. only one dmamux.
2. another clock dma_clk except dmamux clk.
3. 16 independent interrupts instead of only one interrupt for
all channels.

Signed-off-by: Robin Gong <yibin.gong@nxp.com>
Tested-by: Angelo Dureghello <angelo@sysam.it>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-07-03 13:28:23 +05:30
Robin Gong af802728e4 dmaengine: fsl-edma: add drvdata for fsl-edma
There are some differences between vf610 and next i.mx7ulp. Put such
differences into static driver data for distinguishing easily at
driver level. Change mcf-edma accordingly.

Signed-off-by: Robin Gong <yibin.gong@nxp.com>
Tested-by: Angelo Dureghello <angelo@sysam.it>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-07-03 13:28:22 +05:30
Krzysztof Kozlowski 32685552fd dmaengine: fsl-edma: Fix typo in Vybrid name
Fix typo in comment for Vybrid SoC family.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-05-04 15:50:26 +05:30
Laurentiu Tudor 0fa89f972d dmaengine: fsl-edma: dma map slave device address
This mapping needs to be created in order for slave dma transfers
to work on systems with SMMU. The implementation mostly mimics the
one in pl330 dma driver, authored by Robin Murphy.

Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Suggested-by: Robin Murphy <robin.murphy@arm.com>
Tested-by: Angelo Dureghello <angelo@sysam.it>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-02-04 12:32:53 +05:30
Vinod Koul 0e819e3564 dmaengine: fsl-edma: remove dma_slave_config direction usage
dma_slave_config direction was marked as deprecated quite some
time back, remove the usage from this driver so that the field
can be removed

Tested-by: Krzysztof Kozlowski <krzk@kernel.org>
Tested-by: Angelo Dureghello <angelo@sysam.it>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-10-09 14:29:58 +05:30
Angelo Dureghello 4d6d3a90e4 dmaengine: fsl-edma: fix macros
This patch fixes macros to use BIT() and GENMASK(), removing
also some unneeded.

Signed-off-by: Angelo Dureghello <angelo@sysam.it>
Tested-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-09-11 12:06:39 +05:30
Angelo Dureghello 377eaf3b3c dmaengine: fsl-edma: add edma version and configurable registers
This patch adds configurable registers (using __iomem addresses)
to allow the use of fsl-edma-common code with slightly different
edma module versions, as Vybrid (v1) and ColdFire (v2) are.

Signed-off-by: Angelo Dureghello <angelo@sysam.it>
Tested-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-09-11 12:06:39 +05:30
Angelo Dureghello 9d831528a6 dmaengine: fsl-edma: extract common fsl-edma code (no changes in behavior intended)
This patch adds a new fsl-edma-common module to allow new
mcf-edma module code to use most of the fsl-edma code.

Signed-off-by: Angelo Dureghello <angelo@sysam.it>
Tested-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-09-11 12:06:39 +05:30