  We study the discovery prospects for a charged Higgs boson via the $b g\to c
H^- \to c \bar t b$ process at the Large Hadron Collider (LHC). Focusing on the
general Two Higgs Doublet Model (G2HDM) that possesses extra Yukawa couplings,
the process is controlled by extra top couplings $\rho_{tc}$ and $\rho_{tt}$,
which can drive electroweak baryogenesis (EWBG) to account for the baryon
asymmetry of the Universe (BAU). We propose benchmark points (BPs) and
demonstrate that evidence could emerge at 14 TeV LHC and luminosity of 300
fb$^{-1}$, with discovery potential at 600 fb$^{-1}$.
