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authorBen Hutchings <bhutchings@solarflare.com>2008-04-27 12:55:59 +0100
committerJeff Garzik <jgarzik@redhat.com>2008-04-29 01:42:43 -0400
commit8ceee660aacb29721e26f08e336c58dc4847d1bd (patch)
tree158122642e6f21fe85d072c50d6185a0d0cf6834 /drivers/net/sfc/spi.h
parent358c12953b88c5a06a57c33eb27c753b2e7934d1 (diff)
New driver "sfc" for Solarstorm SFC4000 controller.
The driver supports the 10Xpress PHY and XFP modules on our reference designs SFE4001 and SFE4002 and the SMC models SMC10GPCIe-XFP and SMC10GPCIe-10BT. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Diffstat (limited to 'drivers/net/sfc/spi.h')
-rw-r--r--drivers/net/sfc/spi.h71
1 files changed, 71 insertions, 0 deletions
diff --git a/drivers/net/sfc/spi.h b/drivers/net/sfc/spi.h
new file mode 100644
index 000000000000..34412f3d41c9
--- /dev/null
+++ b/drivers/net/sfc/spi.h
@@ -0,0 +1,71 @@
+/****************************************************************************
+ * Driver for Solarflare Solarstorm network controllers and boards
+ * Copyright 2005 Fen Systems Ltd.
+ * Copyright 2006 Solarflare Communications Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation, incorporated herein by reference.
+ */
+
+#ifndef EFX_SPI_H
+#define EFX_SPI_H
+
+#include "net_driver.h"
+
+/**************************************************************************
+ *
+ * Basic SPI command set and bit definitions
+ *
+ *************************************************************************/
+
+/*
+ * Commands common to all known devices.
+ *
+ */
+
+/* Write status register */
+#define SPI_WRSR 0x01
+
+/* Write data to memory array */
+#define SPI_WRITE 0x02
+
+/* Read data from memory array */
+#define SPI_READ 0x03
+
+/* Reset write enable latch */
+#define SPI_WRDI 0x04
+
+/* Read status register */
+#define SPI_RDSR 0x05
+
+/* Set write enable latch */
+#define SPI_WREN 0x06
+
+/* SST: Enable write to status register */
+#define SPI_SST_EWSR 0x50
+
+/*
+ * Status register bits. Not all bits are supported on all devices.
+ *
+ */
+
+/* Write-protect pin enabled */
+#define SPI_STATUS_WPEN 0x80
+
+/* Block protection bit 2 */
+#define SPI_STATUS_BP2 0x10
+
+/* Block protection bit 1 */
+#define SPI_STATUS_BP1 0x08
+
+/* Block protection bit 0 */
+#define SPI_STATUS_BP0 0x04
+
+/* State of the write enable latch */
+#define SPI_STATUS_WEN 0x02
+
+/* Device busy flag */
+#define SPI_STATUS_NRDY 0x01
+
+#endif /* EFX_SPI_H */