diff options
| -rw-r--r-- | doc/README.distro | 7 | ||||
| -rw-r--r-- | include/config_distro_bootcmd.h | 11 |
2 files changed, 13 insertions, 5 deletions
diff --git a/doc/README.distro b/doc/README.distro index 9e4722a..019903e 100644 --- a/doc/README.distro +++ b/doc/README.distro @@ -341,6 +341,13 @@ scan_dev_for_scripts: If you want to disable boot.scr on all disks, set the value to something innocuous, e.g. setenv scan_dev_for_scripts true. +boot_net_usb_start: + + If you want to prevent USB enumeration by distro boot commands which execute + network operations, set the value to something innocuous, e.g. setenv + boot_net_usb_start true. This would be useful if you know your Ethernet + device is not attached to USB, and you wish to increase boot speed by + avoiding unnecessary actions. Interactively booting from a specific device at the u-boot prompt ================================================================= diff --git a/include/config_distro_bootcmd.h b/include/config_distro_bootcmd.h index 66264ce..c027d86 100644 --- a/include/config_distro_bootcmd.h +++ b/include/config_distro_bootcmd.h @@ -140,15 +140,16 @@ #endif #ifdef CONFIG_CMD_USB -#define BOOTENV_RUN_USB_INIT "usb start; " +#define BOOTENV_RUN_NET_USB_START "run boot_net_usb_start; " #define BOOTENV_SHARED_USB \ + "boot_net_usb_start=usb start\0" \ "usb_boot=" \ - BOOTENV_RUN_USB_INIT \ + "usb start; " \ BOOTENV_SHARED_BLKDEV_BODY(usb) #define BOOTENV_DEV_USB BOOTENV_DEV_BLKDEV #define BOOTENV_DEV_NAME_USB BOOTENV_DEV_NAME_BLKDEV #else -#define BOOTENV_RUN_USB_INIT +#define BOOTENV_RUN_NET_USB_START #define BOOTENV_SHARED_USB #define BOOTENV_DEV_USB \ BOOT_TARGET_DEVICES_references_USB_without_CONFIG_CMD_USB @@ -159,7 +160,7 @@ #if defined(CONFIG_CMD_DHCP) #define BOOTENV_DEV_DHCP(devtypeu, devtypel, instance) \ "bootcmd_dhcp=" \ - BOOTENV_RUN_USB_INIT \ + BOOTENV_RUN_NET_USB_START \ "if dhcp ${scriptaddr} ${boot_script_dhcp}; then " \ "source ${scriptaddr}; " \ "fi\0" @@ -175,7 +176,7 @@ #if defined(CONFIG_CMD_DHCP) && defined(CONFIG_CMD_PXE) #define BOOTENV_DEV_PXE(devtypeu, devtypel, instance) \ "bootcmd_pxe=" \ - BOOTENV_RUN_USB_INIT \ + BOOTENV_RUN_NET_USB_START \ "dhcp; " \ "if pxe get; then " \ "pxe boot; " \ |