pciefd_sys_readreg
(void)pciefd_sys_readreg(priv->board, PCIEFD_REG_SYS_VER1);
(void)pciefd_sys_readreg(priv->board, PCIEFD_REG_SYS_VER1);
v2 = pciefd_sys_readreg(pciefd, PCIEFD_REG_SYS_VER2);
(void)pciefd_sys_readreg(pciefd, PCIEFD_REG_SYS_VER1);