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-rw-r--r--hal_io_fmc.c11
1 files changed, 2 insertions, 9 deletions
diff --git a/hal_io_fmc.c b/hal_io_fmc.c
index 5742e56..7aa4b19 100644
--- a/hal_io_fmc.c
+++ b/hal_io_fmc.c
@@ -4,7 +4,7 @@
* This module contains common code to talk to the FPGA over the FMC bus.
*
* Author: Paul Selkirk
- * Copyright (c) 2014-2015, NORDUnet A/S All rights reserved.
+ * Copyright (c) 2014-2016, NORDUnet A/S All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
@@ -61,17 +61,10 @@ static hal_error_t init(void)
}
/* Translate cryptech register number to FMC address.
- *
- * register number format:
- * 3 bits segment selector
- * 5 bits core selector (6 bits in native eim)
- * 8 bits register selector
- *
- * sss ccccc rrrrrrrr => sss 0 ccccc rrrrrrrr 00
*/
static hal_addr_t fmc_offset(hal_addr_t offset)
{
- return ((offset & ~0x1fff) << 3) + ((offset & 0x1fff) << 2);
+ return offset << 2;
}
void hal_io_set_debug(int onoff)