17 static int flash_cmd(struct spi_slave *slave, uchar cmd, uchar *buf, int len)  in flash_cmd()  argument
20 	return spi_xfer(slave, 8 * len, buf, buf, SPI_XFER_BEGIN | SPI_XFER_END);  in flash_cmd()
23 static int flash_status(struct spi_slave *slave)  in flash_status()  argument
26 	if (flash_cmd(slave, CMD_STAT, buf, sizeof(buf)))  in flash_status()
31 static int flash_set_pow2(struct spi_slave *slave)  in flash_set_pow2()  argument
40 	ret = flash_cmd(slave, CMD_CFG, buf, sizeof(buf));  in flash_set_pow2()
47 	ret = flash_status(slave);  in flash_set_pow2()
54 static int flash_check(struct spi_slave *slave)  in flash_check()  argument
59 	ret = flash_cmd(slave, CMD_ID, buf, sizeof(buf));  in flash_check()
130 		struct spi_slave *slave;  in atmel_df_pow2()  local
161 		slave = spi_setup_slave(bus, cs, 1000, SPI_MODE_3);  in atmel_df_pow2()
162 		if (!slave) {  in atmel_df_pow2()
163 			puts("unable to setup slave\n");  in atmel_df_pow2()
167 		if (spi_claim_bus(slave)) {  in atmel_df_pow2()
168 			spi_free_slave(slave);  in atmel_df_pow2()
172 		if (flash_check(slave)) {  in atmel_df_pow2()
177 		status = flash_status(slave);  in atmel_df_pow2()
194 		if (flash_set_pow2(slave)) {  in atmel_df_pow2()
205 		spi_release_bus(slave);  in atmel_df_pow2()
206 		spi_free_slave(slave);  in atmel_df_pow2()