RGF_USER_USAGE_8
wil_s(wil, RGF_USER_USAGE_8, BIT_USER_SUPPORT_T_POWER_ON_0);
wil_s(wil, RGF_USER_USAGE_8, BIT_USER_EXT_CLK);
saved = wil_r(wil, RGF_USER_USAGE_8);
wil_w(wil, RGF_USER_USAGE_8, saved | BIT_USER_PREVENT_DEEP_SLEEP);
wil_w(wil, RGF_USER_USAGE_8, saved);