diff options
| -rw-r--r-- | drivers/scsi/pm8001/pm80xx_hwi.c | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/drivers/scsi/pm8001/pm80xx_hwi.c b/drivers/scsi/pm8001/pm80xx_hwi.c index 0a2dc56ed9f6..c8a4465b74a5 100644 --- a/drivers/scsi/pm8001/pm80xx_hwi.c +++ b/drivers/scsi/pm8001/pm80xx_hwi.c @@ -967,6 +967,7 @@ pm80xx_chip_soft_rst(struct pm8001_hba_info *pm8001_ha) { u32 regval; u32 bootloader_state; + u32 ibutton0, ibutton1; /* Check if MPI is in ready state to reset */ if (mpi_uninit_check(pm8001_ha) != 0) { @@ -1025,7 +1026,27 @@ pm80xx_chip_soft_rst(struct pm8001_hba_info *pm8001_ha) if (-1 == check_fw_ready(pm8001_ha)) { PM8001_FAIL_DBG(pm8001_ha, pm8001_printk("Firmware is not ready!\n")); - return -EBUSY; + /* check iButton feature support for motherboard controller */ + if (pm8001_ha->pdev->subsystem_vendor != + PCI_VENDOR_ID_ADAPTEC2 && + pm8001_ha->pdev->subsystem_vendor != 0) { + ibutton0 = pm8001_cr32(pm8001_ha, 0, + MSGU_HOST_SCRATCH_PAD_6); + ibutton1 = pm8001_cr32(pm8001_ha, 0, + MSGU_HOST_SCRATCH_PAD_7); + if (!ibutton0 && !ibutton1) { + PM8001_FAIL_DBG(pm8001_ha, + pm8001_printk("iButton Feature is" + " not Available!!!\n")); + return -EBUSY; + } + if (ibutton0 == 0xdeadbeef && ibutton1 == 0xdeadbeef) { + PM8001_FAIL_DBG(pm8001_ha, + pm8001_printk("CRC Check for iButton" + " Feature Failed!!!\n")); + return -EBUSY; + } + } } PM8001_INIT_DBG(pm8001_ha, pm8001_printk("SPCv soft reset Complete\n")); |