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ide-mpc8xx: make m8xx_ide_init_ports() return an error value 

* Make m8xx_ide_init_ports() return an error value.

* Update mpc8xx_ide_probe() to setup/probe only ports for which
  m8xx_ide_init_ports() succedded.

Cc: Vitaly Bordug <vitb@kernel.crashing.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz 2008-04-26 17:36:38 +02:00
parent b81c2266e3
commit cb7500db0e
1 changed files with 25 additions and 15 deletions
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40
drivers/ide/ppc/mpc8xx.c
View File

@ -127,7 +127,7 @@ static int pcmcia_schlvl = PCMCIA_SCHLVL;
* MPC8xx's internal PCMCIA interface
*/
#if defined(CONFIG_IDE_8xx_PCCARD) || defined(CONFIG_IDE_8xx_DIRECT)
static void __init m8xx_ide_init_ports(hw_regs_t *hw, unsigned long data_port)
static int __init m8xx_ide_init_ports(hw_regs_t *hw, unsigned long data_port)
{
unsigned long *p = hw->io_ports;
int i;
@ -236,7 +236,7 @@ static void __init m8xx_ide_init_ports(hw_regs_t *hw, unsigned long data_port)
if (pcmp->pcmc_pipr & (M8XX_PCMCIA_CD1(_slot_)|M8XX_PCMCIA_CD2(_slot_))) {
printk ("No card in slot %c: PIPR=%08x\n",
'A' + _slot_, (u32) pcmp->pcmc_pipr);
return; /* No card in slot */
return -ENODEV; /* No card in slot */
}
check_ide_device (pcmcia_base);
@ -279,9 +279,6 @@ static void __init m8xx_ide_init_ports(hw_regs_t *hw, unsigned long data_port)
}
#endif /* CONFIG_IDE_8xx_PCCARD */
ide_hwifs[data_port].pio_mask = ATA_PIO4;
ide_hwifs[data_port].set_pio_mode = m8xx_ide_set_pio_mode;
/* Enable Harddisk Interrupt,
* and make it edge sensitive
*/
@ -296,6 +293,8 @@ static void __init m8xx_ide_init_ports(hw_regs_t *hw, unsigned long data_port)
/* Enable falling edge irq */
pcmp->pcmc_per = 0x100000 >> (16 * _slot_);
#endif /* CONFIG_IDE_8xx_PCCARD */
return 0;
}
#endif /* CONFIG_IDE_8xx_PCCARD || CONFIG_IDE_8xx_DIRECT */
@ -304,7 +303,7 @@ static void __init m8xx_ide_init_ports(hw_regs_t *hw, unsigned long data_port)
* MPC8xx's internal PCMCIA interface
*/
#if defined(CONFIG_IDE_EXT_DIRECT)
static void __init m8xx_ide_init_ports(hw_regs_t *hw, unsigned long data_port)
static int __init m8xx_ide_init_ports(hw_regs_t *hw, unsigned long data_port)
{
unsigned long *p = hw->io_ports;
int i;
@ -357,15 +356,14 @@ static void __init m8xx_ide_init_ports(hw_regs_t *hw, unsigned long data_port)
hw->irq = ioport_dsc[data_port].irq;
hw->ack_intr = (ide_ack_intr_t *)ide_interrupt_ack;
ide_hwifs[data_port].pio_mask = ATA_PIO4;
ide_hwifs[data_port].set_pio_mode = m8xx_ide_set_pio_mode;
/* Enable Harddisk Interrupt,
* and make it edge sensitive
*/
/* (11-18) Set edge detect for irq, no wakeup from low power mode */
((immap_t *) IMAP_ADDR)->im_siu_conf.sc_siel |=
(0x80000000 >> ioport_dsc[data_port].irq);
return 0;
}
#endif /* CONFIG_IDE_8xx_DIRECT */
@ -794,14 +792,26 @@ static int __init mpc8xx_ide_probe(void)
#ifdef IDE0_BASE_OFFSET
memset(&hw, 0, sizeof(hw));
m8xx_ide_init_ports(&hw, 0);
ide_init_port_hw(&ide_hwifs[0], &hw);
idx[0] = 0;
if (!m8xx_ide_init_ports(&hw, 0)) {
ide_hwif_t *hwif = &ide_hwifs[0];
ide_init_port_hw(hwif, &hw);
hwif->pio_mask = ATA_PIO4;
hwif->set_pio_mode = m8xx_ide_set_pio_mode;
idx[0] = 0;
}
#ifdef IDE1_BASE_OFFSET
memset(&hw, 0, sizeof(hw));
m8xx_ide_init_ports(&hw, 1);
ide_init_port_hw(&ide_hwifs[1], &hw);
idx[1] = 1;
if (!m8xx_ide_init_ports(&hw, 1)) {
ide_hwif_t *mate = &ide_hwifs[1];
ide_init_port_hw(mate, &hw);
mate->pio_mask = ATA_PIO4;
mate->set_pio_mode = m8xx_ide_set_pio_mode;
idx[1] = 1;
}
#endif
#endif