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brppt1: Update environment to support new boot concept

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* Drop legacy /boot/PPTImage.md5 check
* Update device tree naming
* Update t30args#0 root cmd line property to support latest kernel
  versions (root=/dev/mmcblk0p2 for linux < 4 and
  root=/dev/mmcblk1p2 for linux >= 4)
* Add custom bootloader version string
* Destroy invalid dtb at ${dtbaddr} and configuration script at
  ${cfgaddr} to ensure proper boot in warm restart case.

Signed-off-by: Bernhard Messerklinger <bernhard.messerklinger@br-automation.com>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
This commit is contained in:
Bernhard Messerklinger 2022-08-25 08:54:04 +02:00 committed by Tom Rini
parent 0daeadbbd2
commit c79c0b4692
2 changed files with 15 additions and 7 deletions
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4
configs/brppt1_mmc_defconfig
View File

@ -17,6 +17,8 @@ CONFIG_SPL_SERIAL=y
CONFIG_SPL=y
CONFIG_ENV_OFFSET_REDUND=0x50000
CONFIG_SYS_LOAD_ADDR=0x80000000
CONFIG_LOCALVERSION="-2.0.0"
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_HAS_CUSTOM_SYS_INIT_SP_ADDR=y
CONFIG_CUSTOM_SYS_INIT_SP_ADDR=0x4030ff00
# CONFIG_EXPERT is not set
@ -26,7 +28,7 @@ CONFIG_BOOTDELAY=0
CONFIG_USE_BOOTCOMMAND=y
CONFIG_BOOTCOMMAND="run b_default"
CONFIG_USE_PREBOOT=y
CONFIG_PREBOOT="mw ${dtbaddr} 0; run cfgscr; run brdefaultip"
CONFIG_PREBOOT="mw ${cfgaddr} 0; mw ${dtbaddr} 0; run cfgscr; run brdefaultip"
CONFIG_SYS_CONSOLE_IS_IN_ENV=y
CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE=y
CONFIG_SYS_CONSOLE_INFO_QUIET=y

18
include/configs/brppt1.h
View File

@ -29,18 +29,16 @@
#define MMC_TGTS \
"t30args#0=setenv bootargs ${optargs_rot} ${optargs} console=${console} " \
"b_mode=${b_mode} root=/dev/mmcblk0p2 rootfstype=ext4\0" \
"b_mode=${b_mode} root=${root_dev} rootfstype=ext4 rootwait\0" \
"b_t30lgcy#0=" \
"load ${loaddev}:2 ${loadaddr} /boot/PPTImage.md5 && " \
"load ${loaddev}:2 ${loadaddr} /boot/zImage && " \
"load ${loaddev}:2 ${dtbaddr} /boot/am335x-ppt30.dtb || " \
"load ${loaddev}:1 ${dtbaddr} am335x-ppt30-legacy.dtb; "\
"run load_dtb && " \
"run t30args#0; run cfgscr; bootz ${loadaddr} - ${dtbaddr}\0" \
"t30args#1=setenv bootargs ${optargs_rot} ${optargs} console=${console} " \
"b_mode=${b_mode}\0" \
"b_t30lgcy#1=" \
"load ${loaddev}:1 ${loadaddr} zImage && " \
"load ${loaddev}:1 ${dtbaddr} am335x-ppt30.dtb && " \
"load ${loaddev}:1 ${dtbaddr} am335x-brppt30.dtb && " \
"load ${loaddev}:1 ${ramaddr} rootfsPPT30.uboot && " \
"run t30args#1; run cfgscr; bootz ${loadaddr} ${ramaddr} ${dtbaddr}\0" \
"b_mmc0=load ${loaddev}:1 ${scraddr} bootscr.img && source ${scraddr}\0" \
@ -48,11 +46,19 @@
"b_tgts_std=mmc0 mmc1 t30lgcy#0 t30lgcy#1 usb0 net\0" \
"b_tgts_rcy=t30lgcy#1 usb0 net\0" \
"b_tgts_pme=net usb0 mmc0 mmc1\0" \
"loaddev=mmc 1\0"
"loaddev=mmc 1\0" \
"root_dev=/dev/mmcblk0p2\0" \
"load_dtb=load ${loaddev}:2 ${dtbaddr} /boot/am335x-brppt30.dtb; " \
"if test $? -eq 0; then " \
"setenv root_dev /dev/mmcblk1p2; " \
"else; " \
"load ${loaddev}:1 ${dtbaddr} am335x-brppt30-legacy.dtb; " \
"fi;\0"
#ifdef CONFIG_ENV_IS_IN_MMC
#define MMCTGTS \
MMC_TGTS \
"cfgscr=mw ${cfgaddr} 0;" \
" mmc dev 1; mmc read ${cfgaddr} 200 80; source ${cfgaddr};" \
" fdt addr ${dtbaddr} || cp ${fdtcontroladdr} ${dtbaddr} 4000\0"
#else