UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

ppc/lopec: remove ppc_ide_md hooks 

* Add IDE_HFLAG_FORCE_LEGACY_IRQS host flag for Motorola-LoPEC platform
  to sl82c105 host driver.

* Remove ppc_ide_md hooks from arch/ppc/platforms/lopec.c - no need for
  them (sl82c105 host driver takes care of all this setup).

* Then remove no longer needed <linux/ide.h> include.

Looking at arch/ppc/configs/lopec_defconfig:

...
CONFIG_IDE_GENERIC=y
CONFIG_BLK_DEV_IDEPCI=y
# CONFIG_IDEPCI_SHARE_IRQ is not set
# CONFIG_BLK_DEV_OFFBOARD is not set
CONFIG_BLK_DEV_GENERIC=y
# CONFIG_BLK_DEV_OPTI621 is not set
CONFIG_BLK_DEV_SL82C105=y
...

there should be no functional changes unless somebody preferred to disable
sl82c105 host driver and use only ide_generic one (but why would anybody
want to do such thing :-).

PS It seems that lopec_defconfig hasn't been updated for ages but if somebody
is going to do it please look into disabling IDE_GENERIC and BLK_DEV_GENERIC
config options.  Thanks.

Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz 2008-04-18 00:46:29 +02:00
parent 2661b13a21
commit 5510b12557
2 changed files with 4 additions and 85 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

85
arch/ppc/platforms/lopec.c
View File

@ -15,7 +15,6 @@
#include <linux/pci_ids.h>
#include <linux/ioport.h>
#include <linux/init.h>
#include <linux/ide.h>
#include <linux/seq_file.h>
#include <linux/initrd.h>
#include <linux/console.h>
@ -168,85 +167,6 @@ lopec_power_off(void)
lopec_halt();
}
#if defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE)
int lopec_ide_ports_known = 0;
static unsigned long lopec_ide_regbase[MAX_HWIFS];
static unsigned long lopec_ide_ctl_regbase[MAX_HWIFS];
static unsigned long lopec_idedma_regbase;
static void
lopec_ide_probe(void)
{
struct pci_dev *dev = pci_get_device(PCI_VENDOR_ID_WINBOND,
PCI_DEVICE_ID_WINBOND_82C105,
NULL);
lopec_ide_ports_known = 1;
if (dev) {
lopec_ide_regbase[0] = dev->resource[0].start;
lopec_ide_regbase[1] = dev->resource[2].start;
lopec_ide_ctl_regbase[0] = dev->resource[1].start;
lopec_ide_ctl_regbase[1] = dev->resource[3].start;
lopec_idedma_regbase = dev->resource[4].start;
pci_dev_put(dev);
}
}
static int
lopec_ide_default_irq(unsigned long base)
{
if (lopec_ide_ports_known == 0)
lopec_ide_probe();
if (base == lopec_ide_regbase[0])
return 14;
else if (base == lopec_ide_regbase[1])
return 15;
else
return 0;
}
static unsigned long
lopec_ide_default_io_base(int index)
{
if (lopec_ide_ports_known == 0)
lopec_ide_probe();
return lopec_ide_regbase[index];
}
static void __init
lopec_ide_init_hwif_ports(hw_regs_t *hw, unsigned long data,
unsigned long ctl, int *irq)
{
unsigned long reg = data;
uint alt_status_base;
int i;
for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++)
hw->io_ports[i] = reg++;
if (data == lopec_ide_regbase[0]) {
alt_status_base = lopec_ide_ctl_regbase[0] + 2;
hw->irq = 14;
} else if (data == lopec_ide_regbase[1]) {
alt_status_base = lopec_ide_ctl_regbase[1] + 2;
hw->irq = 15;
} else {
alt_status_base = 0;
hw->irq = 0;
}
if (ctl)
hw->io_ports[IDE_CONTROL_OFFSET] = ctl;
else
hw->io_ports[IDE_CONTROL_OFFSET] = alt_status_base;
if (irq != NULL)
*irq = hw->irq;
}
#endif /* BLK_DEV_IDE */
static void __init
lopec_init_IRQ(void)
{
@ -384,11 +304,6 @@ platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
ppc_md.nvram_read_val = todc_direct_read_val;
ppc_md.nvram_write_val = todc_direct_write_val;
#if defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE)
ppc_ide_md.default_irq = lopec_ide_default_irq;
ppc_ide_md.default_io_base = lopec_ide_default_io_base;
ppc_ide_md.ide_init_hwif = lopec_ide_init_hwif_ports;
#endif
#ifdef CONFIG_SERIAL_TEXT_DEBUG
ppc_md.progress = gen550_progress;
#endif

4
drivers/ide/pci/sl82c105.c
View File

@ -328,6 +328,10 @@ static const struct ide_port_info sl82c105_chipset __devinitdata = {
.enablebits = {{0x40,0x01,0x01}, {0x40,0x10,0x10}},
.host_flags = IDE_HFLAG_IO_32BIT |
IDE_HFLAG_UNMASK_IRQS |
/* FIXME: check for Compatibility mode in generic IDE PCI code */
#ifdef CONFIG_LOPEC
IDE_HFLAG_FORCE_LEGACY_IRQS |
#endif
IDE_HFLAG_NO_AUTODMA |
IDE_HFLAG_BOOTABLE,
.pio_mask = ATA_PIO5,