diff options
Diffstat (limited to 'src/mainboard/jetway/nf81-t56n-lf/get_bus_conf.c')
| -rw-r--r-- | src/mainboard/jetway/nf81-t56n-lf/get_bus_conf.c | 61 |
1 files changed, 34 insertions, 27 deletions
diff --git a/src/mainboard/jetway/nf81-t56n-lf/get_bus_conf.c b/src/mainboard/jetway/nf81-t56n-lf/get_bus_conf.c index 1491f29970..8fb079537c 100644 --- a/src/mainboard/jetway/nf81-t56n-lf/get_bus_conf.c +++ b/src/mainboard/jetway/nf81-t56n-lf/get_bus_conf.c @@ -30,18 +30,19 @@ #include <southbridge/amd/cimx/sb800/sb_cimx.h> -/* Global variables for MB layouts and these will be shared by irqtable mptable -* and acpi_tables busnum is default. -*/ +/** + * Global variables for mainboard layouts. These are shared by irqtable, + * mptable and acpi_tables where busnum is default. + */ u8 bus_isa; u8 bus_sb800[6]; u32 apicid_sb800; -/* -* Here you only need to set value in pci1234 for HT-IO that could be installed or not -* You may need to preset pci1234 for HTIO board, -* please refer to src/northbridge/amd/amdk8/get_sblk_pci1234.c for detail -*/ +/** + * Here you only need to set value in pci1234 for HT-IO that could be + * installed or not. You may need to preset pci1234 for HTIO board, + * please refer to src/northbridge/amd/amdk8/get_sblk_pci1234.c for detail + */ u32 pci1234x[] = { 0x0000ff0, }; @@ -53,7 +54,7 @@ static u32 get_bus_conf_done = 0; #if CONFIG_HAVE_ACPI_RESUME extern u8 acpi_slp_type; -#endif +#endif /* CONFIG_HAVE_ACPI_RESUME */ void get_bus_conf(void) { @@ -63,26 +64,31 @@ void get_bus_conf(void) device_t dev; int i, j; + /* Be sure func is called exactly once */ if (get_bus_conf_done == 1) - return; /* do it only once */ + return; get_bus_conf_done = 1; -/* - * This is the call to AmdInitLate. It is really in the wrong place, conceptually, - * but functionally within the coreboot model, this is the best place to make the - * call. The logically correct place to call AmdInitLate is after PCI scan is done, - * after the decision about S3 resume is made, and before the system tables are - * written into RAM. The routine that is responsible for writing the tables is - * "write_tables", called near the end of "main". There is no platform - * specific entry point between the S3 resume decision point and the call to - * "write_tables", and the next platform specific entry points are the calls to - * the ACPI table write functions. The first of ose would seem to be the right - * place, but other table write functions, e.g. the PIRQ table write function, are - * called before the ACPI tables are written. This routine is called at the beginning - * of each of the write functions called prior to the ACPI write functions, so this - * becomes the best place for this call. - */ + /* + * This is the call to AmdInitLate. It is really in the wrong place, + * conceptually, but functionally within the coreboot model, this is the + * best place to make the call. The logically correct place to call + * AmdInitLate is after PCI scan is done, after the decision about S3 + * resume is made, and before the system tables are written into RAM. The + * routine that is + * responsible for writing the tables is "write_tables", called near the + * end of "main". There is no platform specific entry point between the S3 + * resume decision point and the call to "write_tables", and the next + * platform specific entry points are the calls to the ACPI table write + * functions. The first of ose would seem to be the right place, but other + * table write + * functions, e.g. the PIRQ table write function, are called before the + * ACPI tables are written. This routine is called at the beginning of each + * of the write functions called prior to the ACPI write functions, so this + * becomes the best place for this call. + */ + #if CONFIG_HAVE_ACPI_RESUME if (acpi_slp_type != 3) { status = agesawrapper_amdinitlate(); @@ -96,7 +102,8 @@ void get_bus_conf(void) status = agesawrapper_amdinitlate(); if(status) printk(BIOS_DEBUG, "agesawrapper_amdinitlate failed: %x \n", status); -#endif +#endif /* CONFIG_HAVE_ACPI_RESUME */ + sbdn_sb800 = 0; memset(bus_sb800, 0, sizeof(bus_sb800)); @@ -142,5 +149,5 @@ void get_bus_conf(void) #if CONFIG_AMD_SB_CIMX sb_Late_Post(); -#endif +#endif /* CONFIG_AMD_SB_CIMX */ } |