diff options
Diffstat (limited to 'src/soc/intel/xeon_sp')
| -rw-r--r-- | src/soc/intel/xeon_sp/cpx/acpi.c | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/src/soc/intel/xeon_sp/cpx/acpi.c b/src/soc/intel/xeon_sp/cpx/acpi.c index b648262347..4a5cb64269 100644 --- a/src/soc/intel/xeon_sp/cpx/acpi.c +++ b/src/soc/intel/xeon_sp/cpx/acpi.c @@ -37,6 +37,72 @@ unsigned long acpi_fill_mcfg(unsigned long current) return current; } +static void uncore_inject_dsdt(void) +{ + struct iiostack_resource stack_info = {0}; + + get_iiostack_info(&stack_info); + + acpigen_write_scope("\\_SB"); + + for (uint8_t stack = 0; stack < stack_info.no_of_stacks; ++stack) { + const STACK_RES *ri = &stack_info.res[stack]; + char rtname[16]; + + snprintf(rtname, sizeof(rtname), "RT%02x", stack); + + acpigen_write_name(rtname); + printk(BIOS_DEBUG, "\tCreating ResourceTemplate %s for stack: %d\n", + rtname, stack); + + acpigen_write_resourcetemplate_header(); + + /* bus resource */ + acpigen_resource_word(2, 0xc, 0, 0, ri->BusBase, ri->BusLimit, + 0x0, (ri->BusLimit - ri->BusBase + 1)); + + /* additional io resources on socket 0 bus 0 */ + if (stack == 0) { + /* ACPI 6.4.2.5 I/O Port Descriptor */ + acpigen_write_io16(0xCF8, 0xCFF, 0x1, 0x8, 1); + + /* IO decode CF8-CFF */ + acpigen_resource_word(1, 0xc, 0x3, 0, 0x0000, 0x03AF, 0, 0x03B0); + acpigen_resource_word(1, 0xc, 0x3, 0, 0x03E0, 0x0CF7, 0, 0x0918); + acpigen_resource_word(1, 0xc, 0x3, 0, 0x03B0, 0x03BB, 0, 0x000C); + acpigen_resource_word(1, 0xc, 0x3, 0, 0x03C0, 0x03DF, 0, 0x0020); + } + + /* IO resource */ + acpigen_resource_word(1, 0xc, 0x3, 0, ri->PciResourceIoBase, + ri->PciResourceIoLimit, 0x0, + (ri->PciResourceIoLimit - ri->PciResourceIoBase + 1)); + + /* additional mem32 resources on socket 0 bus 0 */ + if (stack == 0) { + acpigen_resource_dword(0, 0xc, 3, 0, VGA_BASE_ADDRESS, + (VGA_BASE_ADDRESS + VGA_BASE_SIZE - 1), 0x0, + VGA_BASE_SIZE); + acpigen_resource_dword(0, 0xc, 1, 0, SPI_BASE_ADDRESS, + (SPI_BASE_ADDRESS + SPI_BASE_SIZE - 1), 0x0, + SPI_BASE_SIZE); + } + + /* Mem32 resource */ + acpigen_resource_dword(0, 0xc, 1, 0, ri->PciResourceMem32Base, + ri->PciResourceMem32Limit, 0x0, + (ri->PciResourceMem32Limit - ri->PciResourceMem32Base + 1)); + + /* Mem64 resource */ + acpigen_resource_qword(0, 0xc, 1, 0, ri->PciResourceMem64Base, + ri->PciResourceMem64Limit, 0x0, + (ri->PciResourceMem64Limit - ri->PciResourceMem64Base + 1)); + + acpigen_write_resourcetemplate_footer(); + } + acpigen_pop_len(); +} + void southbridge_inject_dsdt(const struct device *device) { global_nvs_t *gnvs; @@ -59,6 +125,9 @@ void southbridge_inject_dsdt(const struct device *device) acpigen_write_name_dword("NVSA", (uint32_t)gnvs); acpigen_pop_len(); } + + /* Add IIOStack ACPI Resource Templates */ + uncore_inject_dsdt(); } void acpi_create_gnvs(struct global_nvs_t *gnvs) |