fsldma: allow Freescale Elo DMA driver to be compiled as a module
Modify the Freescale Elo / Elo Plus DMA driver so that it can be compiled as
a module.
The primary change is to stop treating the DMA controller as a bus, and the
DMA channels as devices on the bus. This is because the Open Firmware (OF)
kernel code does not allow busses to be removed, so although we can call
of_platform_bus_probe() to probe the DMA channels, there is no
of_platform_bus_remove(). Instead, the DMA channels are manually probed,
similar to what fsl_elbc_nand.c does.
Cc: Scott Wood <scottwood@freescale.com>
Acked-by: Li Yang <leoli@freescale.com>
Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig
index cd30390..904e575 100644
--- a/drivers/dma/Kconfig
+++ b/drivers/dma/Kconfig
@@ -48,13 +48,13 @@
can be integrated in chips such as the Atmel AT32ap7000.
config FSL_DMA
- bool "Freescale MPC85xx/MPC83xx DMA support"
- depends on PPC
+ tristate "Freescale Elo and Elo Plus DMA support"
+ depends on FSL_SOC
select DMA_ENGINE
---help---
- Enable support for the Freescale DMA engine. Now, it support
- MPC8560/40, MPC8555, MPC8548 and MPC8641 processors.
- The MPC8349, MPC8360 is also supported.
+ Enable support for the Freescale Elo and Elo Plus DMA controllers.
+ The Elo is the DMA controller on some 82xx and 83xx parts, and the
+ Elo Plus is the DMA controller on 85xx and 86xx parts.
config MV_XOR
bool "Marvell XOR engine support"