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[POWERPC] Generic check_legacy_ioport
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
Paul Mackerras
parent
8d2169e8d6
commit
8d8a0241eb
@ -478,11 +478,39 @@ void probe_machine(void)
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printk(KERN_INFO "Using %s machine description\n", ppc_md.name);
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}
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/* Match a class of boards, not a specific device configuration. */
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int check_legacy_ioport(unsigned long base_port)
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{
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if (ppc_md.check_legacy_ioport == NULL)
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return 0;
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return ppc_md.check_legacy_ioport(base_port);
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struct device_node *parent, *np = NULL;
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int ret = -ENODEV;
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switch(base_port) {
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case I8042_DATA_REG:
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np = of_find_node_by_type(NULL, "8042");
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break;
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case FDC_BASE: /* FDC1 */
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np = of_find_node_by_type(NULL, "fdc");
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break;
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#ifdef CONFIG_PPC_PREP
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case _PIDXR:
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case _PNPWRP:
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case PNPBIOS_BASE:
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/* implement me */
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#endif
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default:
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/* ipmi is supposed to fail here */
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break;
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}
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if (!np)
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return ret;
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parent = of_get_parent(np);
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if (parent) {
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if (strcmp(parent->type, "isa") == 0)
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ret = 0;
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of_node_put(parent);
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}
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of_node_put(np);
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return ret;
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}
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EXPORT_SYMBOL(check_legacy_ioport);
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@ -190,15 +190,6 @@ static int __init cell_probe(void)
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return 1;
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}
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/*
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* Cell has no legacy IO; anything calling this function has to
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* fail or bad things will happen
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*/
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static int cell_check_legacy_ioport(unsigned int baseport)
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{
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return -ENODEV;
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}
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define_machine(cell) {
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.name = "Cell",
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.probe = cell_probe,
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@ -211,7 +202,6 @@ define_machine(cell) {
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.get_rtc_time = rtas_get_rtc_time,
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.set_rtc_time = rtas_set_rtc_time,
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.calibrate_decr = generic_calibrate_decr,
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.check_legacy_ioport = cell_check_legacy_ioport,
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.progress = cell_progress,
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.init_IRQ = cell_init_irq,
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.pci_setup_phb = rtas_setup_phb,
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@ -128,15 +128,6 @@ static int __init celleb_probe(void)
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return 1;
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}
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/*
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* Cell has no legacy IO; anything calling this function has to
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* fail or bad things will happen
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*/
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static int celleb_check_legacy_ioport(unsigned int baseport)
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{
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return -ENODEV;
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}
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#ifdef CONFIG_KEXEC
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static void celleb_kexec_cpu_down(int crash, int secondary)
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{
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@ -173,7 +164,6 @@ define_machine(celleb) {
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.get_rtc_time = beat_get_rtc_time,
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.set_rtc_time = beat_set_rtc_time,
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.calibrate_decr = generic_calibrate_decr,
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.check_legacy_ioport = celleb_check_legacy_ioport,
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.progress = celleb_progress,
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.power_save = beat_power_save,
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.nvram_size = beat_nvram_get_size,
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@ -628,15 +628,6 @@ static void iseries_iounmap(volatile void __iomem *token)
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{
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}
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/*
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* iSeries has no legacy IO, anything calling this function has to
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* fail or bad things will happen
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*/
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static int iseries_check_legacy_ioport(unsigned int baseport)
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{
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return -ENODEV;
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}
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static int __init iseries_probe(void)
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{
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unsigned long root = of_get_flat_dt_root();
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@ -667,7 +658,6 @@ define_machine(iseries) {
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.calibrate_decr = generic_calibrate_decr,
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.progress = iSeries_progress,
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.probe = iseries_probe,
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.check_legacy_ioport = iseries_check_legacy_ioport,
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.ioremap = iseries_ioremap,
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.iounmap = iseries_iounmap,
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/* XXX Implement enable_pmcs for iSeries */
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@ -102,12 +102,6 @@ void __init pas_setup_arch(void)
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pasemi_idle_init();
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}
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/* No legacy IO on our parts */
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static int pas_check_legacy_ioport(unsigned int baseport)
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{
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return -ENODEV;
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}
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static __init void pas_init_IRQ(void)
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{
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struct device_node *np;
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@ -252,7 +246,6 @@ define_machine(pas) {
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.restart = pas_restart,
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.get_boot_time = pas_get_boot_time,
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.calibrate_decr = generic_calibrate_decr,
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.check_legacy_ioport = pas_check_legacy_ioport,
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.progress = pas_progress,
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.machine_check_exception = pas_machine_check_handler,
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.pci_irq_fixup = pas_pci_irq_fixup,
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@ -635,15 +635,6 @@ static void __init pmac_init_early(void)
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#endif
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}
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/*
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* pmac has no legacy IO, anything calling this function has to
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* fail or bad things will happen
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*/
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static int pmac_check_legacy_ioport(unsigned int baseport)
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{
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return -ENODEV;
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}
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static int __init pmac_declare_of_platform_devices(void)
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{
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struct device_node *np;
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@ -755,7 +746,6 @@ define_machine(powermac) {
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.get_rtc_time = pmac_get_rtc_time,
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.calibrate_decr = pmac_calibrate_decr,
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.feature_call = pmac_do_feature_call,
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.check_legacy_ioport = pmac_check_legacy_ioport,
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.progress = udbg_progress,
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#ifdef CONFIG_PPC64
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.pci_probe_mode = pmac_pci_probe_mode,
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@ -335,32 +335,6 @@ static void __init pSeries_init_early(void)
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DBG(" <- pSeries_init_early()\n");
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}
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static int pSeries_check_legacy_ioport(unsigned int baseport)
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{
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struct device_node *np;
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#define I8042_DATA_REG 0x60
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#define FDC_BASE 0x3f0
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switch(baseport) {
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case I8042_DATA_REG:
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np = of_find_node_by_type(NULL, "8042");
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if (np == NULL)
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return -ENODEV;
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of_node_put(np);
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break;
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case FDC_BASE:
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np = of_find_node_by_type(NULL, "fdc");
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if (np == NULL)
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return -ENODEV;
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of_node_put(np);
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break;
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}
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return 0;
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}
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/*
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* Called very early, MMU is off, device-tree isn't unflattened
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*/
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@ -537,7 +511,6 @@ define_machine(pseries) {
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.set_rtc_time = rtas_set_rtc_time,
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.calibrate_decr = generic_calibrate_decr,
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.progress = rtas_progress,
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.check_legacy_ioport = pSeries_check_legacy_ioport,
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.system_reset_exception = pSeries_system_reset_exception,
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.machine_check_exception = pSeries_machine_check_exception,
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};
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@ -11,7 +11,12 @@
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/* Check of existence of legacy devices */
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extern int check_legacy_ioport(unsigned long base_port);
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#define PNPBIOS_BASE 0xf000 /* only relevant for PReP */
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#define I8042_DATA_REG 0x60
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#define FDC_BASE 0x3f0
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/* only relevant for PReP */
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#define _PIDXR 0x279
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#define _PNPWRP 0xa79
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#define PNPBIOS_BASE 0xf000
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#include <linux/compiler.h>
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#include <asm/page.h>
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@ -153,9 +153,6 @@ struct machdep_calls {
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*/
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long (*feature_call)(unsigned int feature, ...);
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/* Check availability of legacy devices like i8042 */
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int (*check_legacy_ioport)(unsigned int baseport);
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/* Get legacy PCI/IDE interrupt mapping */
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int (*pci_get_legacy_ide_irq)(struct pci_dev *dev, int channel);
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