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Updated power-on procedure

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@2896 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Björn Stenberg 2002-12-02 10:30:40 +00:00
parent 657a2f3d1c
commit 7249c8807c
1 changed files with 10 additions and 19 deletions
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29
firmware/drivers/ata.c
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@ -102,6 +102,7 @@ static unsigned short identify_info[SECTOR_SIZE];
static int ata_power_on(void);
static int perform_soft_reset(void);
static int set_multiple_mode(int sectors);
static int wait_for_bsy(void) __attribute__ ((section (".icode")));
static int wait_for_bsy(void)
@ -524,21 +525,18 @@ int ata_hard_reset(void)
{
int ret;
mutex_lock(&ata_mtx);
PADR &= ~0x0200;
sleep(2);
PADR |= 0x0200;
ret = wait_for_rdy();
ret = wait_for_bsy();
/* Massage the return code so it is 0 on success and -1 on failure */
ret = ret?0:-1;
sleeping = false;
mutex_unlock(&ata_mtx);
return ret;
}
@ -582,26 +580,19 @@ int ata_soft_reset(void)
static int ata_power_on(void)
{
int ret;
int retry_count;
ide_power_enable(true);
sleep(HZ/2);
if( ata_hard_reset() )
return -1;
ATA_SELECT = SELECT_LBA;
ATA_CONTROL = CONTROL_nIEN;
/* This little sucker can take up to 30 seconds */
retry_count = 8;
do
{
ret = wait_for_rdy();
} while(!ret && retry_count--);
/* Massage the return code so it is 0 on success and -1 on failure */
ret = ret?0:-1;
if (set_multiple_mode(multisectors))
return -2;
sleeping = false;
return ret;
poweroff = false;
return 0;
}
static int master_slave_detect(void)
@ -752,7 +743,7 @@ int ata_init(void)
initialized = true;
}
if (set_multiple_mode(multisectors))
return -6;
return -6;
ATA_SELECT = SELECT_LBA;
ATA_CONTROL = CONTROL_nIEN;