iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

[POWERPC] Generic check_legacy_ioport

Browse Source 
check_legacy_ioport makes only sense on PREP, CHRP and pSeries.
They may have an isa node with PS/2, parport, floppy and serial ports.

Remove the check_legacy_ioport call from ppc_md, it's not needed
anymore.  Hardware capabilities come from the device-tree.

Signed-off-by: Olaf Hering <olaf@aepfle.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Olaf Hering 2007-04-26 06:36:56 +10:00 committed by Paul Mackerras
parent 8d2169e8d6
commit 8d8a0241eb
9 changed files with 37 additions and 81 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

34
arch/powerpc/kernel/setup-common.c
View File

@ -478,11 +478,39 @@ void probe_machine(void)
printk(KERN_INFO "Using %s machine description\n", ppc_md.name);
}
/* Match a class of boards, not a specific device configuration. */
int check_legacy_ioport(unsigned long base_port)
{
if (ppc_md.check_legacy_ioport == NULL)
return 0;
return ppc_md.check_legacy_ioport(base_port);
struct device_node *parent, *np = NULL;
int ret = -ENODEV;
switch(base_port) {
case I8042_DATA_REG:
np = of_find_node_by_type(NULL, "8042");
break;
case FDC_BASE: /* FDC1 */
np = of_find_node_by_type(NULL, "fdc");
break;
#ifdef CONFIG_PPC_PREP
case _PIDXR:
case _PNPWRP:
case PNPBIOS_BASE:
/* implement me */
#endif
default:
/* ipmi is supposed to fail here */
break;
}
if (!np)
return ret;
parent = of_get_parent(np);
if (parent) {
if (strcmp(parent->type, "isa") == 0)
ret = 0;
of_node_put(parent);
}
of_node_put(np);
return ret;
}
EXPORT_SYMBOL(check_legacy_ioport);

10
arch/powerpc/platforms/cell/setup.c
View File

@ -190,15 +190,6 @@ static int __init cell_probe(void)
return 1;
}
/*
* Cell has no legacy IO; anything calling this function has to
* fail or bad things will happen
*/
static int cell_check_legacy_ioport(unsigned int baseport)
{
return -ENODEV;
}
define_machine(cell) {
.name = "Cell",
.probe = cell_probe,
@ -211,7 +202,6 @@ define_machine(cell) {
.get_rtc_time = rtas_get_rtc_time,
.set_rtc_time = rtas_set_rtc_time,
.calibrate_decr = generic_calibrate_decr,
.check_legacy_ioport = cell_check_legacy_ioport,
.progress = cell_progress,
.init_IRQ = cell_init_irq,
.pci_setup_phb = rtas_setup_phb,

10
arch/powerpc/platforms/celleb/setup.c
View File

@ -128,15 +128,6 @@ static int __init celleb_probe(void)
return 1;
}
/*
* Cell has no legacy IO; anything calling this function has to
* fail or bad things will happen
*/
static int celleb_check_legacy_ioport(unsigned int baseport)
{
return -ENODEV;
}
#ifdef CONFIG_KEXEC
static void celleb_kexec_cpu_down(int crash, int secondary)
{
@ -173,7 +164,6 @@ define_machine(celleb) {
.get_rtc_time = beat_get_rtc_time,
.set_rtc_time = beat_set_rtc_time,
.calibrate_decr = generic_calibrate_decr,
.check_legacy_ioport = celleb_check_legacy_ioport,
.progress = celleb_progress,
.power_save = beat_power_save,
.nvram_size = beat_nvram_get_size,

10
arch/powerpc/platforms/iseries/setup.c
View File

@ -628,15 +628,6 @@ static void iseries_iounmap(volatile void __iomem *token)
{
}
/*
* iSeries has no legacy IO, anything calling this function has to
* fail or bad things will happen
*/
static int iseries_check_legacy_ioport(unsigned int baseport)
{
return -ENODEV;
}
static int __init iseries_probe(void)
{
unsigned long root = of_get_flat_dt_root();
@ -667,7 +658,6 @@ define_machine(iseries) {
.calibrate_decr = generic_calibrate_decr,
.progress = iSeries_progress,
.probe = iseries_probe,
.check_legacy_ioport = iseries_check_legacy_ioport,
.ioremap = iseries_ioremap,
.iounmap = iseries_iounmap,
/* XXX Implement enable_pmcs for iSeries */

7
arch/powerpc/platforms/pasemi/setup.c
View File

@ -102,12 +102,6 @@ void __init pas_setup_arch(void)
pasemi_idle_init();
}
/* No legacy IO on our parts */
static int pas_check_legacy_ioport(unsigned int baseport)
{
return -ENODEV;
}
static __init void pas_init_IRQ(void)
{
struct device_node *np;
@ -252,7 +246,6 @@ define_machine(pas) {
.restart = pas_restart,
.get_boot_time = pas_get_boot_time,
.calibrate_decr = generic_calibrate_decr,
.check_legacy_ioport = pas_check_legacy_ioport,
.progress = pas_progress,
.machine_check_exception = pas_machine_check_handler,
.pci_irq_fixup = pas_pci_irq_fixup,

10
arch/powerpc/platforms/powermac/setup.c
View File

@ -635,15 +635,6 @@ static void __init pmac_init_early(void)
#endif
}
/*
* pmac has no legacy IO, anything calling this function has to
* fail or bad things will happen
*/
static int pmac_check_legacy_ioport(unsigned int baseport)
{
return -ENODEV;
}
static int __init pmac_declare_of_platform_devices(void)
{
struct device_node *np;
@ -755,7 +746,6 @@ define_machine(powermac) {
.get_rtc_time = pmac_get_rtc_time,
.calibrate_decr = pmac_calibrate_decr,
.feature_call = pmac_do_feature_call,
.check_legacy_ioport = pmac_check_legacy_ioport,
.progress = udbg_progress,
#ifdef CONFIG_PPC64
.pci_probe_mode = pmac_pci_probe_mode,

27
arch/powerpc/platforms/pseries/setup.c
View File

@ -335,32 +335,6 @@ static void __init pSeries_init_early(void)
DBG(" <- pSeries_init_early()\n");
}
static int pSeries_check_legacy_ioport(unsigned int baseport)
{
struct device_node *np;
#define I8042_DATA_REG 0x60
#define FDC_BASE 0x3f0
switch(baseport) {
case I8042_DATA_REG:
np = of_find_node_by_type(NULL, "8042");
if (np == NULL)
return -ENODEV;
of_node_put(np);
break;
case FDC_BASE:
np = of_find_node_by_type(NULL, "fdc");
if (np == NULL)
return -ENODEV;
of_node_put(np);
break;
}
return 0;
}
/*
* Called very early, MMU is off, device-tree isn't unflattened
*/
@ -537,7 +511,6 @@ define_machine(pseries) {
.set_rtc_time = rtas_set_rtc_time,
.calibrate_decr = generic_calibrate_decr,
.progress = rtas_progress,
.check_legacy_ioport = pSeries_check_legacy_ioport,
.system_reset_exception = pSeries_system_reset_exception,
.machine_check_exception = pSeries_machine_check_exception,
};

7
include/asm-powerpc/io.h
View File

@ -11,7 +11,12 @@
/* Check of existence of legacy devices */
extern int check_legacy_ioport(unsigned long base_port);
#define PNPBIOS_BASE 0xf000 /* only relevant for PReP */
#define I8042_DATA_REG 0x60
#define FDC_BASE 0x3f0
/* only relevant for PReP */
#define _PIDXR 0x279
#define _PNPWRP 0xa79
#define PNPBIOS_BASE 0xf000
#include <linux/compiler.h>
#include <asm/page.h>

3
include/asm-powerpc/machdep.h
View File

@ -153,9 +153,6 @@ struct machdep_calls {
*/
long (*feature_call)(unsigned int feature, ...);
/* Check availability of legacy devices like i8042 */
int (*check_legacy_ioport)(unsigned int baseport);
/* Get legacy PCI/IDE interrupt mapping */
int (*pci_get_legacy_ide_irq)(struct pci_dev *dev, int channel);