This does not use loops to compute timings but uses DIV_ROUND_UP.
Another thing affected by this patch are minimum timings. Presumably
those only need to be guarded against on DDR3. With this change
timings are set up like vendor (with tWTR below previous minimum)
TESTED on Intel D510MO
Change-Id: Ia374f26e5bbb8b90d90c24ae6c20412ba53bd7b6
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/19495
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>
Some of these can be changed from #if to if(), but that will happen
in a follow-on commmit.
Change-Id: Id5bc8b75b1fa372f31982b8636f1efa4975b61a5
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/20346
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
These delays, adding up to 600 ms, don’t seem to be needed, so remove
them.
TESTED on d510mo, boots fine without.
Change-Id: If089d6677fe95b086eeb00540acfbb66fa2e1c47
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/19505
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Philippe Mathieu-Daudé <philippe.mathieu.daude@gmail.com>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
Reviewed-by: Damien Zammit <damien@zamaudio.com>
Also changes the arguments of some functions to const.
This reduces romstage size by a whopping 1009 bytes.
Change-Id: I054504412524b7be19d98081097843b61bc0c459
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/20147
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Ryan Salsamendi <rsalsamendi@hotmail.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-by: Philippe Mathieu-Daudé <philippe.mathieu.daude@gmail.com>
Reviewed-by: Sumeet R Pawnikar <sumeet.r.pawnikar@intel.com>
This is not needed.
Change-Id: Id19a00c1546b7a71d90aa8c7e43e6efde1e9fbbc
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/19425
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
For raminit to succeed on a hot reset the following things are
prevented from running:
* Clearing self refresh
* Setting memory frequency
* programming sdram dll timings
* programming rcomp
TESTED on Intel d510mo.
Change-Id: I8f7e5c2958df29a96cdf856ade2f4f33707ad362
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/19337
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
The function decode_spd uses undeclared variables and an incorrectly
initialized array.
Change-Id: Ib45a8b2946c04c270e29524675b1f09d491d282b
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/19336
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Philippe Mathieu-Daudé <philippe.mathieu.daude@gmail.com>
Reviewed-by: Martin Roth <martinroth@google.com>
Mask out the bit that doesn't fit in 32bits, so gcc 6.1 is happy
Change-Id: I13e2b41742206b8d86b90314b80cc324c00ae637
Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-on: https://review.coreboot.org/14639
Reviewed-by: Damien Zammit <damien@zamaudio.com>
Tested-by: build bot (Jenkins)
VGA grub console works but display wobbles left/right
drm/i915 driver reports one error:
- [drm:i915_irq_handler] *ERROR* pipe A underrun
- Monitor does not display 1920x1080 after modeset
- Other resolutions look out of sync
Cause: suspect single bug in raminit (chipset init)
Change-Id: I2dcf59f8f30efe98f17a937bf98f5ab7221fc3ac
Signed-off-by: Damien Zammit <damien@zamaudio.com>
Reviewed-on: https://review.coreboot.org/12921
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
Does native ram init for Intel Atom D5xx 8086:a000 northbridge
Tested on Intel D510MO mainboard, board boots linux kernel
- Works fully with both dimms populated (2x2GB), memtest passes 100%
- Almost boots with only one dimm in one of the slots
(suspect bad memory map with one dimm?)
- Reads garbage with only one dimm in other slot
Change-Id: Ibd22be2a959045e0a83aae2a3a0e877013f80711
Signed-off-by: Damien Zammit <damien@zamaudio.com>
Reviewed-on: https://review.coreboot.org/12501
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
