Commit graph

12 commits

Author SHA1 Message Date
Patrick Delaunay
218da804ef common/memsize.c: restore content of the base address
For the last return of function get_ram_size(),
when size=maxsize, restore the base address (*base)
content.

Add comment for the remaining case to avoid regression:
this case is already correctly handled.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2018-03-13 21:59:30 -04:00
Patrick Delaunay
c5da05cd41 common/memsize.c: prepare get_ram_size update
Save the content of the base address in a new variable
in stack (save_base) to prepare restore this content.

This patch don't modified code behavior and stack usage.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2018-03-13 21:59:30 -04:00
Hans de Goede
cc8d698fab Revert "common/memsize.c: Simplify RAM size detection"
This commit breaks bootup on sunxi boards, the get stuck
when running the main u-boot binary at:

CPU:   Allwinner H3 (SUN8I)
I2C:   ready
DRAM:

This reverts commit 8e7cba048b.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2016-02-10 08:34:42 -05:00
Eddy Petrișor
8e7cba048b common/memsize.c: Simplify RAM size detection
The case of memory of size 0 is not that different from a memory of any other
size, so we remove the duplicate code and treat the small differences when it
is the case.

Signed-off-by: Eddy Petrișor <eddy.petrisor@gmail.com>
2016-02-08 10:10:49 -05:00
Wolfgang Denk
95099fee40 common/memsize.c: Coding style cleanup
Prepare code to make later modifications checkpatch-clean.

Signed-off-by: Wolfgang Denk <wd@denx.de>
2015-01-14 11:35:43 -05:00
York Sun
e38661634b common: Add get_effective_memsize() to memsize.c
This function has been around for powerpc. It is used for systems with
memory more than CONFIG_MAX_MEM_MAPPED. In case of non-contiguous memory,
this feature can limit U-boot to one block without going over the limit.

Signed-off-by: York Sun <yorksun@freescale.com>
Acked-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
2014-02-21 11:06:13 -05:00
Wolfgang Denk
1a4596601f Add GPL-2.0+ SPDX-License-Identifier to source files
Signed-off-by: Wolfgang Denk <wd@denx.de>
[trini: Fixup common/cmd_io.c]
Signed-off-by: Tom Rini <trini@ti.com>
2013-07-24 09:44:38 -04:00
Tom Rini
3ab270d5df Revert "memsize: Fix for bug in memory sizing code"
After further investigation this change is not correct and results in
get_ram_size returning incorrectly large values.  Reported first by
Gerlando Falauto.

This reverts commit b8496cced8.

Signed-off-by: Tom Rini <trini@ti.com>
2012-09-21 08:14:05 -07:00
Iwo Mergler
b8496cced8 memsize: Fix for bug in memory sizing code
The original memory sizing code in get_ram_size clobbers the word
at the base address, but forgets to restore it.

Signed-off-by: Iwo Mergler <Iwo.Mergler@netcommwireless.com>
2012-09-18 12:01:51 -07:00
Albert ARIBAUD
a55d23ccf6 Remove volatile qualifier in get_ram_size() calls
Checkpatch.pl complains about the volatile qualifier in calls to
get_ram_size(). Remove this qualifier in the prototype and in the
calls where it is useless, and leave it only in the function body
where it is needed.

Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
2011-07-17 17:11:53 +02:00
Wolfgang Denk
91650b3e4d Sequential accesses to non-existent memory must be synchronized,
at least on G2 cores.

This fixes get_ram_size() problems on MPC5200 Rev. B boards.
2006-11-06 17:06:36 +01:00
wdenk
c83bf6a2d0 Add a common get_ram_size() function and modify the the
board-specific files to invoke that common implementation.
2004-01-06 22:38:14 +00:00