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[hermon] Use reset value suitable for ConnectX-3 

The programming documentation states that the reset magic value is
"0x00000001 (Big Endian)", and the current code matches this by using
the value 0x01000000 for the implicitly little-endian writel().

Inspection of the FlexBoot source code reveals an exciting variety of
reset values, some suggestive of confusion around endianness.

Experimentation suggests that the value 0x01000001 works reliably
across a wide range of hardware.

Debugged-by: Christian Iversen <ci@iversenit.dk>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
pull/244/head
Michael Brown 2021-02-01 01:53:15 +00:00
parent 2e3d5909ee
commit e62c3e3513
1 changed files with 1 additions and 1 deletions
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2
src/drivers/infiniband/hermon.h
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@ -34,7 +34,7 @@ FILE_LICENCE ( GPL2_OR_LATER );
/* Device reset */
#define HERMON_RESET_OFFSET 0x0f0010
#define HERMON_RESET_MAGIC 0x01000000UL
#define HERMON_RESET_MAGIC 0x01000001UL
#define HERMON_RESET_WAIT_TIME_MS 1000
/* Work queue entry and completion queue entry opcodes */