dmaengine: fsl-edma: add config and makefile changes for mcf-edma

Hi Angelo,

Quoted 6 lines · Angelo Dureghello

This patch adds Kconfig and makefile changes to add ColdFire mcf5441x family edma support.
A new fsl-edma-common module has been added, to collect common code to fsl-edma.

Signed-off-by Angelo Dureghello <[email protected]>

Thanks for your patch!

Quoted 6 lines

drivers/dma/Kconfig +0 -0

@@ -220,11 +220,17 @@ config FSL_EDMA
        depends on OF
        select DMA_ENGINE
        select DMA_VIRTUAL_CHANNELS

drivers/dma/Kconfig config FSL_EDMA · line 232

Quoted 10 lines

drivers/dma/Kconfig +5 -0

+       select FSL_EDMA_COMMON
        help
          Support the Freescale eDMA engine with programmable channel
          multiplexing capability for DMA request sources(slot).
          This module can be found on Freescale Vybrid and LS-1 SoCs.
 
+config FSL_EDMA_COMMON
+       bool
+       depends on FSL_EDMA || MCF_EDMA
+       default n

If this symbol is used only for controlling the build of a source file, then you don't really need it...

Quoted 28 lines

drivers/dma/Kconfig +13 -0

+
 config FSL_RAID
         tristate "Freescale RAID engine Support"
         depends on FSL_SOC && !ASYNC_TX_ENABLE_CHANNEL_SWITCH

@@ -327,6 +333,18 @@ config LPC18XX_DMAMUX
          Enable support for DMA on NXP LPC18xx/43xx platforms
          with PL080 and multiplexed DMA request lines.
 
+config MCF_EDMA
+       tristate "Freescale eDMA engine support, ColdFire mcf5441x SoCs"
+       depends on M5441x
+       select DMA_ENGINE
+       select DMA_VIRTUAL_CHANNELS
+       select FSL_EDMA_COMMON
+       help
+         Support the Freescale ColdFire eDMA engine, 64-channel
+         implementation that performs complex data transfers with
+         minimal intervention from a host processor.
+         This module can be found on Freescale ColdFire mcf5441x SoCs.
+
 config MMP_PDMA
        bool "MMP PDMA support"
        depends on ARCH_MMP || ARCH_PXA || COMPILE_TEST

drivers/dma/Makefile +0 -0

index 0f62a4d49aab..823a590f308b 100644

drivers/dma/Makefile obj-$(CONFIG_DW_DMAC_CORE) += dw/ · line 37

Quoted 5 lines

drivers/dma/Makefile +2 -0

@@ -33,6 +33,8 @@ obj-$(CONFIG_DW_DMAC_CORE) += dw/
 obj-$(CONFIG_EP93XX_DMA) += ep93xx_dma.o
 obj-$(CONFIG_FSL_DMA) += fsldma.o
 obj-$(CONFIG_FSL_EDMA) += fsl-edma.o
+obj-$(CONFIG_FSL_EDMA_COMMON) += fsl-edma-common.o
+obj-$(CONFIG_MCF_EDMA) += mcf-edma.o

... as you can just write in the Makefile:

    obj-$(CONFIG_FSL_EDMA) += fsl-edma.o fsl-edma-common.o
    obj-$(CONFIG_MCF_EDMA) += mcf-edma.o fsl-edma-common.o

drivers/dma/Makefile obj-$(CONFIG_DW_DMAC_CORE) += dw/ · line 40

Quoted 3 lines

drivers/dma/Makefile +0 -0

 obj-$(CONFIG_FSL_RAID) += fsl_raid.o
 obj-$(CONFIG_HSU_DMA) += hsu/
 obj-$(CONFIG_IMG_MDC_DMA) += img-mdc-dma.o

Gr{oetje,eeting}s,

Geert

Signature · 9 lines

Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- [email protected]

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
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