Commit graph

10 commits

Author SHA1 Message Date
Chris Packham
c3ab274444 ARM: mvebu: handle unused DRAM banks with ECC enabled
dram_ecc_scrubbing() had code to skip unused DRAM banks but it would not
work because mvebu_sdram_bs() returns 0 and the code was subtracting 1
before checking the size. Remove the -1 from the bank size and the +1
from the total which will skip unused banks and still calculate the
correct size. Put the -1 where it is needed for scrubbing via the xor
engine.

Reported-by: Joshua Scott <joshua.scott@alliedtelesis.co.nz>
Signed-off-by: Chris Packham <judge.packham@gmail.com>
Signed-off-by: Stefan Roese <sr@denx.de>
2017-09-26 06:52:57 +02:00
Joshua Scott
631407c5c0 ARM: mvebu: add additional information to board_add_ram_info()
Display more information about the current RAM configuration. With these
changes the output on a 88F6820 board is

  SoC:   MV88F6820-A0 at 1600 MHz
  DRAM:  2 GiB (800 MHz, 32-bit, ECC not enabled)

Signed-off-by: Joshua Scott <joshua.scott@alliedtelesis.co.nz>
Signed-off-by: Chris Packham <judge.packham@gmail.com>
Reviewed-by: Stefan Roese <sr@denx.de>
Signed-off-by: Stefan Roese <sr@denx.de>
2017-09-26 06:51:50 +02:00
Simon Glass
76b00aca4f board_f: Drop setup_dram_config() wrapper
By making dram_init_banksize() return an error code we can drop the
wrapper. Adjust this and clean up all implementations.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Stefan Roese <sr@denx.de>
2017-04-05 16:36:51 -04:00
Stefan Roese
81e33f4b65 arm: mvebu: Move SoC selection (A38X vs AXP) into Kconfig
Until now, the SoC selection for the ARCH_MVEBU platforms has been done
in the config header. Using CONFIG_ARMADA_XP in a non-clear way. As
it needed to get selected for AXP and A38x based boards. This patch
now changes this to move the SoC selection to Kconfig. And also
uses CONFIG_ARCH_MVEBU as a common define for both AXP and A38x.
This makes things a bit clearer - especially for new board additions.

Additionally the defines CONFIG_SYS_MVEBU_DDR_AXP and
CONFIG_SYS_MVEBU_DDR_A38X are replaced with the already available
CONFIG_ARMADA_38X and CONFIG_ARMADA_XP.

And CONFIG_DDR3 is removed, as its not referenced anywhere.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Luka Perkov <luka.perkov@sartura.hr>
2016-01-14 14:08:59 +01:00
Stefan Roese
d718bf2c9e arm: mvebu: Print CPU and SDRAM frequency upon startup
With this patch, the CPU and the DDR frequencies will get printed in the
U-Boot startup messages. Resulting in such a log:

U-Boot 2016.01-rc2-00188-gb8eeaec-dirty (Dec 21 2015 - 12:32:35 +0100)

SoC:   MV78460-B0 at 1600 MHz
I2C:   ready
DRAM:  4 GiB (800 MHz, ECC not enabled)
...

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Luka Perkov <luka.perkov@sartura.hr>
2016-01-14 14:08:59 +01:00
Stefan Roese
0ceb2dae78 arm: mvebu: Add complete SDRAM ECC scrubbing
This patch introduces the SDRAM scrubbing for ECC enabled board
to fill/initialize the ECC bytes. This is done via the XOR engine
to speed up the process. The scrubbing is a 2-stage process:

1) SPL scrubs the area 0 - 0x100.0000 (16MiB) for the main U-Boot
2) U-Boot scrubs the remaining SDRAM area(s)

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Luka Perkov <luka.perkov@sartura.hr>
2015-08-17 18:49:33 +02:00
Stefan Roese
a8b57a90ec arm: mvebu: dram.c: Rework dram_init() and dram_init_banksize()
Rework these functions so that dram_init_banksize() does not call
dram_init() again. It only needs to set the banksize values in the
bdinfo struct.

Make sure to also clip the size of the last bank if it exceeds the
maximum allowed value of 3 GiB (0xc000.0000). Otherwise other
address windows (e.g. PCIe) will overlap with this memory window.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Luka Perkov <luka.perkov@sartura.hr>
2015-08-17 18:49:29 +02:00
Stefan Roese
8a83c65f57 arm: mvebu: Display ECC enabled / disabled upon bootup
This patch adds "(ECC enabled)" or "(ECC disabled)" to the DRAM
bootup text. Making it easier for board with SPD DIMM's to see,
if ECC is enabled or not.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Luka Perkov <luka.perkov@sartura.hr>
2015-08-17 18:49:19 +02:00
Stefan Roese
8822fe1683 arm: mvebu/armada100: dram.c: Remove CONFIG_SYS_BOARD_DRAM_INIT
CONFIG_SYS_BOARD_DRAM_INIT is not defined anywhere. So lets get rid
of all references here.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Luka Perkov <luka.perkov@sartura.hr>
2015-08-17 18:41:33 +02:00
Stefan Roese
d078765640 arm: mvebu: Move mvebu-common into mach-mvebu
Now that the mach-mvebu directory exists and is used by Armada XP we can
move the mvebu-common files into this directory as well.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Tested-by: Kevin Smith <kevin.smith@elecsyscorp.com>
Tested-by: Dirk Eibach <dirk.eibach@gdsys.cc>
2015-05-05 14:28:29 +02:00
Renamed from arch/arm/mvebu-common/dram.c (Browse further)