diff options
Diffstat (limited to 'drivers/scsi/qla4xxx/ql4_nvram.c')
| -rw-r--r-- | drivers/scsi/qla4xxx/ql4_nvram.c | 25 |
1 files changed, 23 insertions, 2 deletions
diff --git a/drivers/scsi/qla4xxx/ql4_nvram.c b/drivers/scsi/qla4xxx/ql4_nvram.c index 7fe0482ecf0..3bf418fbd43 100644 --- a/drivers/scsi/qla4xxx/ql4_nvram.c +++ b/drivers/scsi/qla4xxx/ql4_nvram.c @@ -1,6 +1,6 @@ /* * QLogic iSCSI HBA Driver - * Copyright (c) 2003-2006 QLogic Corporation + * Copyright (c) 2003-2013 QLogic Corporation * * See LICENSE.qla4xxx for copyright and licensing details. */ @@ -149,13 +149,34 @@ static int eeprom_readword(int eepromAddr, u16 * value, /* Hardware_lock must be set before calling */ u16 rd_nvram_word(struct scsi_qla_host * ha, int offset) { - u16 val; + u16 val = 0; /* NOTE: NVRAM uses half-word addresses */ eeprom_readword(offset, &val, ha); return val; } +u8 rd_nvram_byte(struct scsi_qla_host *ha, int offset) +{ + u16 val = 0; + u8 rval = 0; + int index = 0; + + if (offset & 0x1) + index = (offset - 1) / 2; + else + index = offset / 2; + + val = le16_to_cpu(rd_nvram_word(ha, index)); + + if (offset & 0x1) + rval = (u8)((val & 0xff00) >> 8); + else + rval = (u8)((val & 0x00ff)); + + return rval; +} + int qla4xxx_is_nvram_configuration_valid(struct scsi_qla_host * ha) { int status = QLA_ERROR; |