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authorWolfgang Grandegger <wg@grandegger.com>2009-05-30 07:55:50 +0000
committerDavid S. Miller <davem@davemloft.net>2009-06-01 02:53:35 -0700
commitd1a277c584d0862dbf51991baea947ea5f2ce6bf (patch)
tree368832ff703abde6c813eaaba42a48ae451fc1f1 /include/linux/can/platform/sja1000.h
parent255a9154319d3cf475d527458037758935f6445b (diff)
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can: sja1000: generic OF platform bus driver
This patch adds a generic driver for SJA1000 chips on the OpenFirmware platform bus found on embedded PowerPC systems. You need a SJA1000 node definition in your flattened device tree source (DTS) file similar to: can@3,100 { compatible = "nxp,sja1000"; reg = <3 0x100 0x80>; interrupts = <2 0>; interrupt-parent = <&mpic>; nxp,external-clock-frequency = <16000000>; }; See also Documentation/powerpc/dts-bindings/can/sja1000.txt. CC: devicetree-discuss@ozlabs.org Signed-off-by: Wolfgang Grandegger <wg@grandegger.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/can/platform/sja1000.h')
-rw-r--r--include/linux/can/platform/sja1000.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/can/platform/sja1000.h b/include/linux/can/platform/sja1000.h
index 37966e630ff..01ee2aeb048 100644
--- a/include/linux/can/platform/sja1000.h
+++ b/include/linux/can/platform/sja1000.h
@@ -13,6 +13,7 @@
#define OCR_MODE_TEST 0x01
#define OCR_MODE_NORMAL 0x02
#define OCR_MODE_CLOCK 0x03
+#define OCR_MODE_MASK 0x07
#define OCR_TX0_INVERT 0x04
#define OCR_TX0_PULLDOWN 0x08
#define OCR_TX0_PULLUP 0x10
@@ -21,6 +22,8 @@
#define OCR_TX1_PULLDOWN 0x40
#define OCR_TX1_PULLUP 0x80
#define OCR_TX1_PUSHPULL 0xc0
+#define OCR_TX_MASK 0xfc
+#define OCR_TX_SHIFT 2
struct sja1000_platform_data {
u32 clock; /* CAN bus oscillator frequency in Hz */