On 04/11/2018 02:37 PM, Marek Vasut wrote:
On 04/11/2018 02:26 PM, Tom Rini wrote:
On Wed, Apr 11, 2018 at 10:12:42AM +0200, Marek Vasut wrote:
On 04/11/2018 04:52 AM, Dinh Nguyen wrote:
[...]

u-boot$ git reset --hard v2018.01 ; bu socfpga_cyclone5 ; ls -la
spl/u-boot-spl.bin
HEAD is now at f3dd87e0b9 Prepare v2018.01
-rw-r--r-- 1 marex marex 52902 Apr 11 00:34 spl/u-boot-spl.bin

u-boot$ git reset --hard v2018.03 ; bu socfpga_cyclone5 ; ls -la
spl/u-boot-spl.bin
HEAD is now at f95ab1fb6e Prepare v2018.03
-rw-r--r-- 1 marex marex 59706 Apr 11 00:34 spl/u-boot-spl.bin

Try bisecting out the commit which caused this 7 kiB growth between
2018.01 and 2018.03 . Even those 53 kiB are quite borderline, but it was
at 53 kiB for a while (2017.05 is also ~53 kiB)
Do you have a size constraint and are not setting the correct CONFIG
options so that it becomes a build failure?

Doing the bisect points me to this commit:

commit fa2c14676c7c6f3115dd4d9b2a4cc3b35c3ad2a2
Author: Tom Rini <tr...@konsulko.com>
Date:   Sat Feb 10 16:54:38 2018 -0500

     configs: Re-sync with CONFIG_DISTRO_DEFAULTS

     A number of platforms include config_distro_defaults.h but do not enable
     CONFIG_DISTRO_DEFAULTS.  As they plainly intended to, set that flag and
     re-sync config files.

     Signed-off-by: Tom Rini <tr...@konsulko.com>

Doing a revert of the above commit shrinks the SPL back down to ~7 kiB.

Dinh

It looks like the enablement of CONFIG_DISTRO_DEFAULTS, enables these
configs:

CONFIG_ISO_PARTITION=y
CONFIG_SPL_ISO_PARTITION=y
# CONFIG_AMIGA_PARTITION is not set
# CONFIG_SPL_AMIGA_PARTITION is not set
CONFIG_EFI_PARTITION=y
CONFIG_EFI_PARTITION_ENTRIES_NUMBERS=128
CONFIG_EFI_PARTITION_ENTRIES_OFF=0
CONFIG_SPL_EFI_PARTITION=y
CONFIG_PARTITION_UUIDS=y
CONFIG_SPL_PARTITION_UUIDS=y
# CONFIG_PARTITION_TYPE_GUID is not set

Which is contributing to the SPL growth.

Turning the following config options off subtracts 7k from the SPL:

+# CONFIG_SPL_ISO_PARTITION is not set
+# CONFIG_SPL_EFI_PARTITION is not set

Not sure if these are needed?
IMO not on SoCFPGA. Also CCing Tom.
Yes, all of those options are part of CONFIG_DISTRO_DEFAULTS and are
needed so that booting from various distro media works.
In SPL on boards which usually boot from SDMMC or QSPI NOR ? How is EFI
or ISO partition needed there ?


I don't think ISO partitioning is needed in SPL. However, for GPT I'm not 100% sure. People tend to go with GPT more often than not these days - and to be able to fetch U-Boot proper from a GPT partition may make sense.

How much reduction do you get when you only disable CONFIG_SPL_ISO_PARTITION?


Alex

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