diff options
Diffstat (limited to 'payloads')
-rw-r--r-- | payloads/libpayload/include/coreboot_tables.h | 7 | ||||
-rw-r--r-- | payloads/libpayload/include/sysinfo.h | 1 | ||||
-rw-r--r-- | payloads/libpayload/libc/coreboot.c | 10 |
3 files changed, 18 insertions, 0 deletions
diff --git a/payloads/libpayload/include/coreboot_tables.h b/payloads/libpayload/include/coreboot_tables.h index 1d38c19a80..a8fd5cd321 100644 --- a/payloads/libpayload/include/coreboot_tables.h +++ b/payloads/libpayload/include/coreboot_tables.h @@ -84,6 +84,7 @@ enum { CB_TAG_ACPI_CNVS = 0x0041, CB_TAG_TYPE_C_INFO = 0x0042, CB_TAG_ACPI_RSDP = 0x0043, + CB_TAG_PCIE = 0x0044, CB_TAG_CMOS_OPTION_TABLE = 0x00c8, CB_TAG_OPTION = 0x00c9, CB_TAG_OPTION_ENUM = 0x00ca, @@ -265,6 +266,12 @@ struct cb_gpios { struct cb_gpio gpios[0]; }; +struct cb_pcie { + uint32_t tag; + uint32_t size; + cb_uint64_t ctrl_base; /* Base address of PCIe controller */ +}; + struct lb_range { uint32_t tag; uint32_t size; diff --git a/payloads/libpayload/include/sysinfo.h b/payloads/libpayload/include/sysinfo.h index c8c10524f4..12d8a13e3f 100644 --- a/payloads/libpayload/include/sysinfo.h +++ b/payloads/libpayload/include/sysinfo.h @@ -84,6 +84,7 @@ struct sysinfo_t { uintptr_t linker; uintptr_t assembler; uintptr_t mem_chip_base; + uintptr_t pcie_ctrl_base; /* Base address of PCIe controller */ uintptr_t cb_version; diff --git a/payloads/libpayload/libc/coreboot.c b/payloads/libpayload/libc/coreboot.c index cdd6a437b6..bcc9530733 100644 --- a/payloads/libpayload/libc/coreboot.c +++ b/payloads/libpayload/libc/coreboot.c @@ -264,6 +264,13 @@ static void cb_parse_cbmem_entry(void *ptr, struct sysinfo_t *info) } } +static void cb_parse_pcie(void *ptr, struct sysinfo_t *info) +{ + const struct cb_pcie *pcie = ptr; + + info->pcie_ctrl_base = pcie->ctrl_base; +} + static void cb_parse_rsdp(void *ptr, struct sysinfo_t *info) { const struct cb_acpi_rsdp *cb_acpi_rsdp = ptr; @@ -413,6 +420,9 @@ int cb_parse_header(void *addr, int len, struct sysinfo_t *info) case CB_TAG_ACPI_RSDP: cb_parse_rsdp(ptr, info); break; + case CB_TAG_PCIE: + cb_parse_pcie(ptr, info); + break; default: cb_parse_arch_specific(rec, info); break; |