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yaml --- r: 84766 b: refs/heads/master c: a667061 h: refs/heads/master v: v3
git-mirror · Feb 8, 2008 · 162c94e · 162c94e
1 parent 5054f94
commit 162c94e
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Showing 3 changed files with 384 additions and 25 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 1ecc26bd2789ddb253f61e182a61c776663fe44c
+refs/heads/master: a66706158d6bc4d9eb29c37852001f78f4c8989c
diff --git a/trunk/drivers/serial/Kconfig b/trunk/drivers/serial/Kconfig
@@ -380,6 +380,21 @@ config SERIAL_ATMEL_CONSOLE
 	  console is the device which receives all kernel messages and
 	  warnings and which allows logins in single user mode).
 
+config SERIAL_ATMEL_PDC
+	bool "Support DMA transfers on AT91 / AT32 serial port"
+	depends on SERIAL_ATMEL
+	default y
+	help
+	  Say Y here if you wish to use the PDC to do DMA transfers to
+	  and from the Atmel AT91 / AT32 serial port. In order to
+	  actually use DMA transfers, make sure that the use_dma_tx
+	  and use_dma_rx members in the atmel_uart_data struct is set
+	  appropriately for each port.
+
+	  Note that break and error handling currently doesn't work
+	  properly when DMA is enabled. Make sure that ports where
+	  this matters don't use DMA.
+
 config SERIAL_ATMEL_TTYAT
 	bool "Install as device ttyATn instead of ttySn"
 	depends on SERIAL_ATMEL=y