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authorBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2008-04-26 17:36:38 +0200
committerBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2008-04-26 17:36:38 +0200
commitcb7500db0e94c61b79712bc081dd90da68a4a40c (patch)
treee56b553579544bb3e1105e07c3a7e10381baca31 /drivers/ide/ppc
parentb81c2266e36f6bdf0c7186d21b375e32d8929df8 (diff)
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>
Diffstat (limited to 'drivers/ide/ppc')
-rw-r--r--drivers/ide/ppc/mpc8xx.c40
1 files changed, 25 insertions, 15 deletions
diff --git a/drivers/ide/ppc/mpc8xx.c b/drivers/ide/ppc/mpc8xx.c
index a784a97ca7e..3f8539f1ccd 100644
--- a/drivers/ide/ppc/mpc8xx.c
+++ b/drivers/ide/ppc/mpc8xx.c
@@ -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