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Code Issues Releases Wiki Activity

[SCSI] aic94xx: Removes Reliance on FLASH Manufacture IDs

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This patch removes the reliance on FLASH Manufacture IDs for validation.

Signed-off-by: Alexis Bruemmer <alexisb@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
Alexis Bruemmer 2006-09-07 14:32:16 -07:00 committed by James Bottomley
parent 65396410af
commit f2d719c65a
1 changed files with 2 additions and 49 deletions
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49
drivers/scsi/aic94xx/aic94xx_sds.c
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@ -376,7 +376,6 @@ int asd_read_ocm(struct asd_ha_struct *asd_ha)
/* ---------- FLASH stuff ---------- */
#define FLASH_RESET 0xF0
#define FLASH_MANUF_AMD 1
#define FLASH_SIZE 0x200000
#define FLASH_DIR_COOKIE "*** ADAPTEC FLASH DIRECTORY *** "
@ -627,7 +626,7 @@ static int asd_find_flash_dir(struct asd_ha_struct *asd_ha,
static int asd_flash_getid(struct asd_ha_struct *asd_ha)
{
int err = 0;
u32 reg, inc;
u32 reg;
reg = asd_read_reg_dword(asd_ha, EXSICNFGR);
@ -648,55 +647,9 @@ static int asd_flash_getid(struct asd_ha_struct *asd_ha)
ASD_DPRINTK("couldn't reset flash(%d)\n", err);
return err;
}
/* Get flash info. This would most likely be AMD Am29LV family flash.
* First try the sequence for word mode. It is the same as for
* 008B (byte mode only), 160B (word mode) and 800D (word mode).
*/
reg = asd_ha->hw_prof.flash.bar;
inc = asd_ha->hw_prof.flash.wide ? 2 : 1;
asd_write_reg_byte(asd_ha, reg + 0x555, 0xAA);
asd_write_reg_byte(asd_ha, reg + 0x2AA, 0x55);
asd_write_reg_byte(asd_ha, reg + 0x555, 0x90);
asd_ha->hw_prof.flash.manuf = asd_read_reg_byte(asd_ha, reg);
asd_ha->hw_prof.flash.dev_id= asd_read_reg_byte(asd_ha,reg+inc);
asd_ha->hw_prof.flash.sec_prot = asd_read_reg_byte(asd_ha,reg+inc+inc);
/* Get out of autoselect mode. */
err = asd_reset_flash(asd_ha);
if (asd_ha->hw_prof.flash.manuf == FLASH_MANUF_AMD) {
ASD_DPRINTK("0Found FLASH(%d) manuf:%d, dev_id:0x%x, "
"sec_prot:%d\n",
asd_ha->hw_prof.flash.wide ? 16 : 8,
asd_ha->hw_prof.flash.manuf,
asd_ha->hw_prof.flash.dev_id,
asd_ha->hw_prof.flash.sec_prot);
return 0;
}
/* Ok, try the sequence for byte mode of 160B and 800D.
* We may actually never need this.
*/
asd_write_reg_byte(asd_ha, reg + 0xAAA, 0xAA);
asd_write_reg_byte(asd_ha, reg + 0x555, 0x55);
asd_write_reg_byte(asd_ha, reg + 0xAAA, 0x90);
asd_ha->hw_prof.flash.manuf = asd_read_reg_byte(asd_ha, reg);
asd_ha->hw_prof.flash.dev_id = asd_read_reg_byte(asd_ha, reg + 2);
asd_ha->hw_prof.flash.sec_prot = asd_read_reg_byte(asd_ha, reg + 4);
err = asd_reset_flash(asd_ha);
if (asd_ha->hw_prof.flash.manuf == FLASH_MANUF_AMD) {
ASD_DPRINTK("1Found FLASH(%d) manuf:%d, dev_id:0x%x, "
"sec_prot:%d\n",
asd_ha->hw_prof.flash.wide ? 16 : 8,
asd_ha->hw_prof.flash.manuf,
asd_ha->hw_prof.flash.dev_id,
asd_ha->hw_prof.flash.sec_prot);
return 0;
}
return -ENOENT;
}
static u16 asd_calc_flash_chksum(u16 *p, int size)
{
u16 chksum = 0;