ZS_REG_CSR
bus_space_write_1(zsc->cs_bustag, zsc->cs_regs, ZS_REG_CSR, reg);
val = bus_space_read_1(zsc->cs_bustag, zsc->cs_regs, ZS_REG_CSR);
bus_space_write_1(zsc->cs_bustag, zsc->cs_regs, ZS_REG_CSR, reg);
bus_space_write_1(zsc->cs_bustag, zsc->cs_regs, ZS_REG_CSR, val);
val = bus_space_read_1(zsc->cs_bustag, zsc->cs_regs, ZS_REG_CSR);
bus_space_write_1(zsc->cs_bustag, zsc->cs_regs, ZS_REG_CSR, val);
(ZS_REG_CSR << 2) + 3, reg);
(ZS_REG_CSR << 2) + 3);
(ZS_REG_CSR << 2) + 3, reg);
(ZS_REG_CSR << 2) + 3, val);
(ZS_REG_CSR << 2) + 3);
(ZS_REG_CSR << 2) + 3, val);