This patchset adds the support on Rockchip based ARM64 SOC's that compress the
U-BOOT proper along with dtb
and ATF in FIT image format.Second stage bootloader(SPL) loads the compressed
binaries, uncompress
them and handover control to the next stage.
Changes for V3 :-
1. Replaced spl_decompression_enabled() function instead of checking
IS_ENABLED(CONFIG_SPL_GZIP)
and IS_ENABLED(CONFIG_SPL_LZMA) in spl_fit.c
2. Removed extra wrapping parentheses in spl_decompression_enabled().
Size Comparision between compressed and uncompressed binaries :-
size of uncompressed binary :- 9.0M (94,21,824 bytes)
manoj:u-boot$ ls -lb u-boot-rockchip.bin
-rw-rw-r-- 1 manoj manoj 9421824 Sep 10 22:22 u-boot-rockchip.bin
size of GZIP compressed binary :- 8.6M (89,85,088 bytes)
manoj:u-boot$ ls -lb u-boot-rockchip.bin
-rw-rw-r-- 1 manoj manoj 8985088 Jul 25 07:42 u-boot-rockchip.bin
size of LZMA compressed binary :- 8.6 M (90,06,592 bytes)
manoj:u-boot$ ls -lb u-boot-rockchip.bin
-rw-rw-r-- 1 manoj manoj 9006592 Jul 25 07:47 u-boot-rockchip.bin
Test results of Booting time using bootstage command in Uboot command prompt
on roc-rk3399-pc board :-
1) Uncompressed U-BOOT : Total boot time ??? 12.063971 seconds
=> bootstage report
Timer summary in microseconds (10 records):
Mark Elapsed Stage
0 0 reset
1,833,884 1,833,884 board_init_f
2,959,528 1,125,644 board_init_r
5,224,521 2,264,993 eth_common_init
5,523,428 298,907 eth_initialize
5,523,606 178 main_loop
5,523,764 158 usb_start
12,063,971 6,540,207 cli_loop
2) GZIP Compressed U-BOOT : Total time ??? 12.824968 seconds
=> bootstage report
Timer summary in microseconds (10 records):
Mark Elapsed Stage
0 0 reset
2,594,709 2,594,709 board_init_f
3,719,969 1,125,260 board_init_r
5,985,450 2,265,481 eth_common_init
6,284,371 298,921 eth_initialize
6,284,549 178 main_loop
6,284,708 159 usb_start
12,824,968 6,540,260 cli_loop
3) LZMA Compressed U-BOOT : Total time ??? 17.025004 seconds
=> bootstage report
Timer summary in microseconds (10 records):
Mark Elapsed Stage
0 0 reset
6,852,254 6,852,254 board_init_f
7,940,143 1,087,889 board_init_r
10,190,458 2,250,315 eth_common_init
10,487,254 296,796 eth_initialize
10,487,432 178 main_loop
10,487,590 158 usb_start
17,025,004 6,537,414 cli_loop
As per suggestion from Mr.Jonas Karlman (jo...@kwiboo.se) through Patchset
V2,that check boot time
with enabling CONFIG_SPL_FIT_SIGNATURE that might impact boot time.
Tried to check the boot time with CONFIG_FIT_SIGNATURE enabled, I didnt find
any significant
boot time improvement with enabling CONFIG_SPL_FIT_SIGNATURE.
Comparision of GZIP and LZMA compressed U-boot Boot time with and without
Enable of CONFIG_FIT_SIGNATURE :-
- GZIP Compressed U-BOOT and CONFIG_FIT_SIGNATURE enabled :- Total time ???
13.283998 seconds
=> bootstage report
Timer summary in microseconds (10 records):
Mark Elapsed Stage
0 0 reset
3,052,571 3,052,571 board_init_f
4,179,787 1,127,216 board_init_r
6,445,472 2,265,685 eth_common_init
6,744,416 298,944 eth_initialize
6,744,593 177 main_loop
6,744,751 158 usb_start
13,283,998 6,539,247 cli_loop
- GZIP Compressed U-BOOT and CONFIG_FIT_SIGNATURE disabled :- Total time ???
12.824968 seconds
- LZMA Compressed U-BOOT and CONFIG_FIT_SIGNATURE enabled :- Total time ???
17.005996 seconds
=> bootstage report
Timer summary in microseconds (10 records):
Mark Elapsed Stage
0 0 reset
6,775,071 6,775,071 board_init_f
7,902,443 1,127,372 board_init_r
10,167,546 2,265,103 eth_common_init
10,466,418 298,872 eth_initialize
10,466,595 177 main_loop
10,466,753 158 usb_start
17,005,996 6,539,243 cli_loop
- LZMA Compressed U-BOOT and CONFIG_FIT_SIGNATURE disabled :- Total time ???
17.025004 seconds
Manoj Sai (4):
spl: fit: support for booting a GZIP-compressed U-boot binary
spl: fit: support for booting a LZMA-compressed U-boot binary
rockchip: Add support to generate GZIP compressed U-boot binary
rockchip: Add support to generate LZMA compressed U-boot binary
arch/arm/dts/rockchip-u-boot.dtsi | 11 +++++++++++
common/spl/spl_fit.c | 20 +++++++++++++++++---
include/spl.h | 10 ++++++++++
3 files changed, 38 insertions(+), 3 deletions(-)
--
2.25.1
