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[SCSI] pm80xx: IButton security feature support for motherboard controllers. 

Signed-off-by: Anandkumar.Santhanam@pmcs.com
Reviewed-by: Jack Wang <jinpu.wang@profitbricks.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This commit is contained in:
Anand Kumar Santhanam 2013-09-17 14:32:20 +05:30 committed by James Bottomley
parent cb269c26ed
commit 06f12f22ce
1 changed files with 22 additions and 1 deletions
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21
drivers/scsi/pm8001/pm80xx_hwi.c
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@ -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) {
@ -1025,8 +1026,28 @@ 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"));
/* 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"));
return 0;