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Nokia RX-51: Add support for booting kernel in zImage format

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Enable U-Boot bootz command and update env scripts to try loading also
zImage file and to try booting via bootz command.

Update also lowlevel_init.S code for checking validity of zImage magic to
correctly relocate kernel in zImage format.

This change allows U-Boot to directly boot Linux kernel without need for
converting kernel image into U-Boot uImage format.

Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Link: https://lore.kernel.org/r/20210618132704.32066-1-pali@kernel.org
This commit is contained in:
Pali Rohár
2021-06-18 15:27:03 +02:00
committed by Lokesh Vutla
parent 149389424f
commit cc434fccba
5 changed files with 91 additions and 19 deletions
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11
include/configs/nokia_rx51.h
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@@ -129,12 +129,14 @@ int rx51_kp_getc(struct stdio_dev *sdev);
"scriptboot=echo Running ${mmcscriptfile} from mmc " \
"${mmcnum}:${mmcpart} ...; source ${scriptaddr}\0" \
"kernboot=echo Booting ${mmckernfile} from mmc " \
"${mmcnum}:${mmcpart} ...; bootm ${kernaddr}\0" \
"${mmcnum}:${mmcpart} ...; bootm ${kernaddr} || " \
"bootz ${kernaddr}\0" \
"kerninitrdboot=echo Booting ${mmckernfile} ${mmcinitrdfile} from mmc "\
"${mmcnum}:${mmcpart} ...; bootm ${kernaddr} ${initrdaddr}\0" \
"${mmcnum}:${mmcpart} ...; bootm ${kernaddr} ${initrdaddr} || " \
"bootz ${kernaddr} ${initrdaddr}\0" \
"attachboot=echo Booting attached kernel image ...;" \
"setenv setup_omap_atag 1;" \
"bootm ${attkernaddr};" \
"bootm ${attkernaddr} || bootz ${attkernaddr};" \
"setenv setup_omap_atag\0" \
"trymmcscriptboot=if run switchmmc; then " \
"if run scriptload; then " \
@@ -154,7 +156,8 @@ int rx51_kp_getc(struct stdio_dev *sdev);
"fi; " \
"fi\0" \
"trymmcpartboot=setenv mmcscriptfile boot.scr; run trymmcscriptboot;" \
"setenv mmckernfile uImage; run trymmckernboot\0" \
"setenv mmckernfile uImage; run trymmckernboot;" \
"setenv mmckernfile zImage; run trymmckernboot\0" \
"trymmcallpartboot=setenv mmcpart 1; run trymmcpartboot;" \
"setenv mmcpart 2; run trymmcpartboot;" \
"setenv mmcpart 3; run trymmcpartboot;" \