Hi Simon,
On 15/03/23 03:38, Simon Glass wrote:
Hi Nikhil,
On Mon, 13 Mar 2023 at 04:15, Nikhil M Jain <n-ja...@ti.com> wrote:
To enable splash screen at SPL stage move video driver and splash screen
framework at SPL, which will bring up image on display very quickly and
thus have early display support in SPL.
Nikhil M Jain (9):
drivers: video: Kconfig: Necessary configs for video at SPL
drivers: video: tidss: Kconfig: Configs to enable TIDSS at SPL
cmd: Kconfig: Add necessary configs for splash screen at SPL
drivers: video: Makefile: Compile video driver files at SPL
drivers: video: tidss: Makefile: Add condition to compile TIDSS at SPL
cmd: Makefile: Add rules to build bmp.c and read.c at SPL
common: splash: Enable splash_display at SPL stage
drivers: video: video-uclass: Disable u-boot logo at SPL
board: ti: am62x: evm: OSPI support for splash screen
board/ti/am62x/evm.c | 6 ++++++
cmd/Kconfig | 17 +++++++++++++++++
cmd/Makefile | 2 ++
common/splash.c | 2 +-
drivers/video/Kconfig | 32 ++++++++++++++++++++++++++++----
drivers/video/Makefile | 6 ++++++
drivers/video/tidss/Kconfig | 6 ++++++
drivers/video/tidss/Makefile | 1 +
drivers/video/video-uclass.c | 2 +-
include/splash.h | 2 +-
10 files changed, 69 insertions(+), 7 deletions(-)
I'm not necessarily arguing against this, but what is the need for
this? How many milliseconds earlier does the image appear with this
patch? What is the bottleneck? We should be able to get to U-Boot
proper very quickly.
There is a significant difference in time, by adding support in SPL
splash screen comes up by approx 650ms and at u-boot proper it comes at
2.6s, measured from first print in console as seen on AM62x. Also we
plan to skip u-boot proper and load kernel directly.
Regards,
Simon
Regards,
Nikhil
