diff options
Diffstat (limited to 'drivers/char/ipmi/ipmi_si_platform.c')
| -rw-r--r-- | drivers/char/ipmi/ipmi_si_platform.c | 154 |
1 files changed, 0 insertions, 154 deletions
diff --git a/drivers/char/ipmi/ipmi_si_platform.c b/drivers/char/ipmi/ipmi_si_platform.c index 3d45bf1ee5bc..bf69927502bd 100644 --- a/drivers/char/ipmi/ipmi_si_platform.c +++ b/drivers/char/ipmi/ipmi_si_platform.c @@ -51,14 +51,6 @@ MODULE_PARM_DESC(trydmi, "Setting this to zero will disable the" #endif #ifdef CONFIG_ACPI - -/* - * Once we get an ACPI failure, we don't try any more, because we go - * through the tables sequentially. Once we don't find a table, there - * are no more. - */ -static int acpi_failure; - /* For GPE-type interrupts. */ static u32 ipmi_acpi_gpe(acpi_handle gpe_device, u32 gpe_number, void *context) @@ -103,146 +95,6 @@ static int acpi_gpe_irq_setup(struct si_sm_io *io) return 0; } } - -/* - * Defined at - * http://h21007.www2.hp.com/portal/download/files/unprot/hpspmi.pdf - */ -struct SPMITable { - s8 Signature[4]; - u32 Length; - u8 Revision; - u8 Checksum; - s8 OEMID[6]; - s8 OEMTableID[8]; - s8 OEMRevision[4]; - s8 CreatorID[4]; - s8 CreatorRevision[4]; - u8 InterfaceType; - u8 IPMIlegacy; - s16 SpecificationRevision; - - /* - * Bit 0 - SCI interrupt supported - * Bit 1 - I/O APIC/SAPIC - */ - u8 InterruptType; - - /* - * If bit 0 of InterruptType is set, then this is the SCI - * interrupt in the GPEx_STS register. - */ - u8 GPE; - - s16 Reserved; - - /* - * If bit 1 of InterruptType is set, then this is the I/O - * APIC/SAPIC interrupt. - */ - u32 GlobalSystemInterrupt; - - /* The actual register address. */ - struct acpi_generic_address addr; - - u8 UID[4]; - - s8 spmi_id[1]; /* A '\0' terminated array starts here. */ -}; - -static int try_init_spmi(struct SPMITable *spmi) -{ - struct si_sm_io io; - - if (spmi->IPMIlegacy != 1) { - pr_info(PFX "Bad SPMI legacy %d\n", spmi->IPMIlegacy); - return -ENODEV; - } - - memset(&io, 0, sizeof(io)); - io.addr_source = SI_SPMI; - pr_info(PFX "probing via SPMI\n"); - - /* Figure out the interface type. */ - switch (spmi->InterfaceType) { - case 1: /* KCS */ - io.si_type = SI_KCS; - break; - case 2: /* SMIC */ - io.si_type = SI_SMIC; - break; - case 3: /* BT */ - io.si_type = SI_BT; - break; - case 4: /* SSIF, just ignore */ - return -EIO; - default: - pr_info(PFX "Unknown ACPI/SPMI SI type %d\n", - spmi->InterfaceType); - return -EIO; - } - - if (spmi->InterruptType & 1) { - /* We've got a GPE interrupt. */ - io.irq = spmi->GPE; - io.irq_setup = acpi_gpe_irq_setup; - } else if (spmi->InterruptType & 2) { - /* We've got an APIC/SAPIC interrupt. */ - io.irq = spmi->GlobalSystemInterrupt; - io.irq_setup = ipmi_std_irq_setup; - } else { - /* Use the default interrupt setting. */ - io.irq = 0; - io.irq_setup = NULL; - } - - if (spmi->addr.bit_width) { - /* A (hopefully) properly formed register bit width. */ - io.regspacing = spmi->addr.bit_width / 8; - } else { - io.regspacing = DEFAULT_REGSPACING; - } - io.regsize = io.regspacing; - io.regshift = spmi->addr.bit_offset; - - if (spmi->addr.space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY) { - io.addr_type = IPMI_MEM_ADDR_SPACE; - } else if (spmi->addr.space_id == ACPI_ADR_SPACE_SYSTEM_IO) { - io.addr_type = IPMI_IO_ADDR_SPACE; - } else { - pr_warn(PFX "Unknown ACPI I/O Address type\n"); - return -EIO; - } - io.addr_data = spmi->addr.address; - - pr_info("ipmi_si: SPMI: %s %#lx regsize %d spacing %d irq %d\n", - (io.addr_type == IPMI_IO_ADDR_SPACE) ? "io" : "mem", - io.addr_data, io.regsize, io.regspacing, io.irq); - - return ipmi_si_add_smi(&io); -} - -static void spmi_find_bmc(void) -{ - acpi_status status; - struct SPMITable *spmi; - int i; - - if (acpi_disabled) - return; - - if (acpi_failure) - return; - - for (i = 0; ; i++) { - status = acpi_get_table(ACPI_SIG_SPMI, i+1, - (struct acpi_table_header **)&spmi); - if (status != AE_OK) - return; - - try_init_spmi(spmi); - } -} #endif static struct resource * @@ -580,12 +432,6 @@ void ipmi_si_platform_init(void) int rv = platform_driver_register(&ipmi_platform_driver); if (rv) pr_err(PFX "Unable to register driver: %d\n", rv); - -#ifdef CONFIG_ACPI - if (si_tryacpi) - spmi_find_bmc(); -#endif - } void ipmi_si_platform_shutdown(void) |