diff options
Diffstat (limited to 'src/security/vboot/vboot_common.c')
| -rw-r--r-- | src/security/vboot/vboot_common.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/src/security/vboot/vboot_common.c b/src/security/vboot/vboot_common.c index 11320d218e..ae5bdb634a 100644 --- a/src/security/vboot/vboot_common.c +++ b/src/security/vboot/vboot_common.c @@ -20,11 +20,14 @@ #include <console/cbmem_console.h> #include <console/console.h> #include <fmap.h> +#include <gbb_header.h> #include <reset.h> #include <rules.h> #include <stddef.h> #include <string.h> +#include <security/vboot/gbb.h> #include <security/vboot/vboot_common.h> +#include <security/vboot/vbnv.h> int vboot_named_region_device(const char *name, struct region_device *rdev) { @@ -36,6 +39,22 @@ int vboot_named_region_device_rw(const char *name, struct region_device *rdev) return fmap_locate_area_as_rdev_rw(name, rdev); } +/* Check if it is okay to enable USB Device Controller (UDC). */ +int vboot_can_enable_udc(void) +{ + /* Always disable if not in developer mode */ + if (!vboot_developer_mode_enabled()) + return 0; + /* Enable if GBB flag is set */ + if (gbb_is_flag_set(GBB_FLAG_ENABLE_UDC)) + return 1; + /* Enable if VBNV flag is set */ + if (vbnv_udc_enable_flag()) + return 1; + /* Otherwise disable */ + return 0; +} + /* ========================== VBOOT HANDOFF APIs =========================== */ int vboot_get_handoff_info(void **addr, uint32_t *size) { |