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arm: am43xx: Add USB spl boot support

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Add the USB host boot support for the am43xx evm
Add the macros to boot from a usb drive in uBoot

Signed-off-by: Dan Murphy <dmurphy@ti.com>
This commit is contained in:
Dan Murphy 2014-01-16 11:23:31 -06:00 committed by Tom Rini
parent 8cffe5bd0d
commit 2b36fe579c
1 changed files with 40 additions and 6 deletions
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46
include/configs/am43xx_evm.h
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@ -69,6 +69,11 @@
#define CONFIG_SPL_LDSCRIPT "$(CPUDIR)/omap-common/u-boot-spl.lds"
/* SPL USB Support */
#define CONFIG_SPL_USB_SUPPORT
#define CONFIG_SPL_USB_HOST_SUPPORT
#define CONFIG_SYS_USB_FAT_BOOT_PARTITION 1
#define CONFIG_CMD_USB
#define CONFIG_USB_HOST
#define CONFIG_USB_XHCI
@ -94,26 +99,34 @@
"mmcdev=0\0" \
"mmcroot=/dev/mmcblk0p2 rw\0" \
"mmcrootfstype=ext4 rootwait\0" \
"usbroot=/dev/sda2 rw\0" \
"usbrootfstype=ext4 rootwait\0" \
"usbdev=0\0" \
"ramroot=/dev/ram0 rw ramdisk_size=65536 initrd=${rdaddr},64M\0" \
"ramrootfstype=ext2\0" \
"mmcargs=setenv bootargs console=${console} " \
"${optargs} " \
"root=${mmcroot} " \
"rootfstype=${mmcrootfstype}\0" \
"usbargs=setenv bootargs console=${console} " \
"${optargs} " \
"root=${usbroot} " \
"rootfstype=${usbrootfstype}\0" \
"bootenv=uEnv.txt\0" \
"loadbootenv=load mmc ${mmcdev} ${loadaddr} ${bootenv}\0" \
"loadbootenv=load ${devtype} ${devnum} ${loadaddr} ${bootenv}\0" \
"importbootenv=echo Importing environment from mmc ...; " \
"env import -t $loadaddr $filesize\0" \
"ramargs=setenv bootargs console=${console} " \
"${optargs} " \
"root=${ramroot} " \
"rootfstype=${ramrootfstype}\0" \
"loadramdisk=load mmc ${mmcdev} ${rdaddr} ramdisk.gz\0" \
"loadimage=load mmc ${bootpart} ${loadaddr} ${bootdir}/${bootfile}\0" \
"loadfdt=load mmc ${bootpart} ${fdtaddr} ${bootdir}/${fdtfile}\0" \
"loadramdisk=load ${devtype} ${devnum} ${rdaddr} ramdisk.gz\0" \
"loadimage=load ${devtype} ${bootpart} ${loadaddr} ${bootdir}/${bootfile}\0" \
"loadfdt=load ${devtype} ${bootpart} ${fdtaddr} ${bootdir}/${fdtfile}\0" \
"mmcboot=mmc dev ${mmcdev}; " \
"setenv devnum ${mmcdev}; " \
"if mmc rescan; then " \
"echo SD/MMC found on device ${mmcdev};" \
"echo SD/MMC found on device ${devnum};" \
"if run loadbootenv; then " \
"echo Loaded environment from ${bootenv};" \
"run importbootenv;" \
@ -129,6 +142,26 @@
"bootz ${loadaddr} - ${fdtaddr}; " \
"fi;" \
"fi;\0" \
"usbboot=" \
"setenv devnum ${usbdev}; " \
"setenv devtype usb; " \
"usb start ${usbdev}; " \
"if usb dev ${usbdev}; then " \
"if run loadbootenv; then " \
"echo Loaded environment from ${bootenv};" \
"run importbootenv;" \
"fi;" \
"if test -n $uenvcmd; then " \
"echo Running uenvcmd ...;" \
"run uenvcmd;" \
"fi;" \
"if run loadimage; then " \
"run loadfdt; " \
"echo Booting from usb ${usbdev}...; " \
"run usbargs;" \
"bootz ${loadaddr} - ${fdtaddr}; " \
"fi;" \
"fi\0" \
"findfdt="\
"if test $board_name = AM43EPOS; then " \
"setenv fdtfile am43x-epos-evm.dtb; fi; " \
@ -139,7 +172,8 @@
#define CONFIG_BOOTCOMMAND \
"run findfdt; " \
"run mmcboot;"
"run mmcboot;" \
"run usbboot;"
#endif
#endif /* __CONFIG_AM43XX_EVM_H */