SPI_SH_CR4
!(spi_sh_read(ss, SPI_SH_CR4) &
if (spi_sh_read(ss, SPI_SH_CR4) & SPI_SH_WPABRT) {
spi_sh_set_bit(ss, SPI_SH_WPABRT, SPI_SH_CR4);
spi_sh_set_bit(ss, SPI_SH_TBE, SPI_SH_CR4);
spi_sh_set_bit(ss, SPI_SH_TBE, SPI_SH_CR4);
spi_sh_set_bit(ss, SPI_SH_RBF, SPI_SH_CR4);
spi_sh_clear_bit(ss, ss->cr1, SPI_SH_CR4);