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RapidIO: Add enabling SRIO port RX and TX

PATCH In review Alexandre Bounine 1 participant 1 message Apr 6, 2010 Rapidio

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Alexandre Bounine

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PATCH v3 6/6 RapidIO: Add enabling SRIO port RX and TX

From: Thomas Moll <[email protected]>

Add the functionality to enable Input receiver and Output transmitter of every port, to allow non-maintenance traffic.

Signed-off-by Thomas Moll <[email protected]>
Cc Matt Porter <[email protected]>

---

 drivers/rapidio/Kconfig    |   11 ++++++
 drivers/rapidio/rio-scan.c |   79 ++++++++++++++++++++++++++++++++++++++++++++-
 include/linux/rio_regs.h   |    5 ++
 3 files changed, 94 insertions(+), 1 deletion(-)
drivers/rapidio/Kconfig +11 -0
diff -x '*.pj' -X dontdiff_2.6.32-rc5 -pNur w34r3a/drivers/rapidio/Kconfig w34r3b/drivers/rapidio/Kconfig
@@ -9,4 +9,15 @@ config RAPIDIO_DISC_TIMEOUT
 	  Amount of time a discovery node waits for a host to complete
 	  enumeration before giving up.
 
+config RAPIDIO_ENABLE_RX_TX_PORTS
+	bool "Enable RapidIO Input/Output Ports"
+	depends on RAPIDIO
+	---help---
+	  The RapidIO specification describes a Output port transmit
+	  enable and a Input port receive enable. The recommended state
+	  for Input ports and Output ports should be disabled. When
+	  this switch is set the RapidIO subsystem will enable all
+	  ports for Input/Output direction to allow other traffic
+	  than Maintenance transfers.
+
 source "drivers/rapidio/switches/Kconfig"
drivers/rapidio/rio-scan.c +78 -1

111 lines not on this page · raw message

include/linux/rio_regs.h +5 -0
diff -x '*.pj' -X dontdiff_2.6.32-rc5 -pNur w34r3a/include/linux/rio_regs.h w34r3b/include/linux/rio_regs.h
@@ -243,7 +243,12 @@
 #define  RIO_PORT_N_CTL_PWIDTH		0xc0000000
 #define  RIO_PORT_N_CTL_PWIDTH_1	0x00000000
 #define  RIO_PORT_N_CTL_PWIDTH_4	0x40000000
+#define  RIO_PORT_N_CTL_P_TYP_SER	0x00000001
 #define  RIO_PORT_N_CTL_LOCKOUT		0x00000002
+#define  RIO_PORT_N_CTL_EN_RX_SER	0x00200000
+#define  RIO_PORT_N_CTL_EN_TX_SER	0x00400000
+#define  RIO_PORT_N_CTL_EN_RX_PAR	0x08000000
+#define  RIO_PORT_N_CTL_EN_TX_PAR	0x40000000
 
 /*
  * Error Management Extensions (RapidIO 1.3+, Part 8)