arm: am43xx: Add USB spl boot support
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>
diff --git a/include/configs/am43xx_evm.h b/include/configs/am43xx_evm.h
index 4de495a..f45deeb 100644
--- a/include/configs/am43xx_evm.h
+++ b/include/configs/am43xx_evm.h
@@ -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 */