-/**
- * qla2x00_nvram_request() - Sends read command to NVRAM and gets data from
- * NVRAM.
- * @ha: HA context
- * @nv_cmd: NVRAM command
- *
- * Bit definitions for NVRAM command:
- *
- * Bit 26 = start bit
- * Bit 25, 24 = opcode
- * Bit 23-16 = address
- * Bit 15-0 = write data
- *
- * Returns the word read from nvram @addr.
- */
-static uint16_t
-qla2x00_nvram_request(scsi_qla_host_t *ha, uint32_t nv_cmd)
-{
- uint8_t cnt;
- struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
- uint16_t data = 0;
- uint16_t reg_data;
-
- /* Send command to NVRAM. */
- nv_cmd <<= 5;
- for (cnt = 0; cnt < 11; cnt++) {
- if (nv_cmd & BIT_31)
- qla2x00_nv_write(ha, NVR_DATA_OUT);
- else
- qla2x00_nv_write(ha, 0);
- nv_cmd <<= 1;
- }
-
- /* Read data from NVRAM. */
- for (cnt = 0; cnt < 16; cnt++) {
- WRT_REG_WORD(®->nvram, NVR_SELECT | NVR_CLOCK);
- RD_REG_WORD(®->nvram); /* PCI Posting. */
- NVRAM_DELAY();
- data <<= 1;
- reg_data = RD_REG_WORD(®->nvram);
- if (reg_data & NVR_DATA_IN)
- data |= BIT_0;
- WRT_REG_WORD(®->nvram, NVR_SELECT);
- RD_REG_WORD(®->nvram); /* PCI Posting. */
- NVRAM_DELAY();
- }
-
- /* Deselect chip. */
- WRT_REG_WORD(®->nvram, NVR_DESELECT);
- RD_REG_WORD(®->nvram); /* PCI Posting. */
- NVRAM_DELAY();
-
- return (data);
-}
-
-/**
- * qla2x00_nv_write() - Clean NVRAM operations.
- * @ha: HA context
- */
-static void
-qla2x00_nv_deselect(scsi_qla_host_t *ha)
-{
- struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
-
- WRT_REG_WORD(®->nvram, NVR_DESELECT);
- RD_REG_WORD(®->nvram); /* PCI Posting. */
- NVRAM_DELAY();
-}
-
-/**
- * qla2x00_nv_write() - Prepare for NVRAM read/write operation.
- * @ha: HA context
- * @data: Serial interface selector
- */
-static void
-qla2x00_nv_write(scsi_qla_host_t *ha, uint16_t data)
-{
- struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
-
- WRT_REG_WORD(®->nvram, data | NVR_SELECT | NVR_WRT_ENABLE);
- RD_REG_WORD(®->nvram); /* PCI Posting. */
- NVRAM_DELAY();
- WRT_REG_WORD(®->nvram, data | NVR_SELECT| NVR_CLOCK |
- NVR_WRT_ENABLE);
- RD_REG_WORD(®->nvram); /* PCI Posting. */
- NVRAM_DELAY();
- WRT_REG_WORD(®->nvram, data | NVR_SELECT | NVR_WRT_ENABLE);
- RD_REG_WORD(®->nvram); /* PCI Posting. */
- NVRAM_DELAY();
-}
-