diff options
Diffstat (limited to 'src/northbridge/amd/pi')
| -rw-r--r-- | src/northbridge/amd/pi/00630F01/northbridge.c | 16 | ||||
| -rw-r--r-- | src/northbridge/amd/pi/00660F01/northbridge.c | 16 | ||||
| -rw-r--r-- | src/northbridge/amd/pi/00730F01/northbridge.c | 16 |
3 files changed, 48 insertions, 0 deletions
diff --git a/src/northbridge/amd/pi/00630F01/northbridge.c b/src/northbridge/amd/pi/00630F01/northbridge.c index 28502b0017..e90848a36b 100644 --- a/src/northbridge/amd/pi/00630F01/northbridge.c +++ b/src/northbridge/amd/pi/00630F01/northbridge.c @@ -447,6 +447,21 @@ static void northbridge_fill_ssdt_generator(struct device *device) acpigen_pop_len(); } +static void patch_ssdt_processor_scope(acpi_header_t *ssdt) +{ + unsigned int len = ssdt->length - sizeof(acpi_header_t); + unsigned int i; + + for (i = sizeof(acpi_header_t); i < len; i++) { + /* Search for _PR_ scope and replace it with _SB_ */ + if (*(uint32_t *)((unsigned long)ssdt + i) == 0x5f52505f) + *(uint32_t *)((unsigned long)ssdt + i) = 0x5f42535f; + } + /* Recalculate checksum */ + ssdt->checksum = 0; + ssdt->checksum = acpi_checksum((void *)ssdt, ssdt->length); +} + static unsigned long agesa_write_acpi_tables(struct device *device, unsigned long current, acpi_rsdp_t *rsdp) @@ -521,6 +536,7 @@ static unsigned long agesa_write_acpi_tables(struct device *device, printk(BIOS_DEBUG, "ACPI: * SSDT at %lx\n", current); ssdt = (acpi_header_t *)agesawrapper_getlateinitptr (PICK_PSTATE); if (ssdt != NULL) { + patch_ssdt_processor_scope(ssdt); memcpy((void *)current, ssdt, ssdt->length); ssdt = (acpi_header_t *) current; current += ssdt->length; diff --git a/src/northbridge/amd/pi/00660F01/northbridge.c b/src/northbridge/amd/pi/00660F01/northbridge.c index 0a1b0ba1a4..200508617c 100644 --- a/src/northbridge/amd/pi/00660F01/northbridge.c +++ b/src/northbridge/amd/pi/00660F01/northbridge.c @@ -435,6 +435,21 @@ static void northbridge_fill_ssdt_generator(struct device *device) acpigen_pop_len(); } +static void patch_ssdt_processor_scope(acpi_header_t *ssdt) +{ + unsigned int len = ssdt->length - sizeof(acpi_header_t); + unsigned int i; + + for (i = sizeof(acpi_header_t); i < len; i++) { + /* Search for _PR_ scope and replace it with _SB_ */ + if (*(uint32_t *)((unsigned long)ssdt + i) == 0x5f52505f) + *(uint32_t *)((unsigned long)ssdt + i) = 0x5f42535f; + } + /* Recalculate checksum */ + ssdt->checksum = 0; + ssdt->checksum = acpi_checksum((void *)ssdt, ssdt->length); +} + static unsigned long agesa_write_acpi_tables(struct device *device, unsigned long current, acpi_rsdp_t *rsdp) @@ -511,6 +526,7 @@ static unsigned long agesa_write_acpi_tables(struct device *device, printk(BIOS_DEBUG, "ACPI: * SSDT at %lx\n", current); ssdt = (acpi_header_t *)agesawrapper_getlateinitptr (PICK_PSTATE); if (ssdt != NULL) { + patch_ssdt_processor_scope(ssdt); memcpy((void *)current, ssdt, ssdt->length); ssdt = (acpi_header_t *) current; current += ssdt->length; diff --git a/src/northbridge/amd/pi/00730F01/northbridge.c b/src/northbridge/amd/pi/00730F01/northbridge.c index c87d8fffba..f611bd6e3e 100644 --- a/src/northbridge/amd/pi/00730F01/northbridge.c +++ b/src/northbridge/amd/pi/00730F01/northbridge.c @@ -671,6 +671,21 @@ static void northbridge_fill_ssdt_generator(struct device *device) acpigen_pop_len(); } +static void patch_ssdt_processor_scope(acpi_header_t *ssdt) +{ + unsigned int len = ssdt->length - sizeof(acpi_header_t); + unsigned int i; + + for (i = sizeof(acpi_header_t); i < len; i++) { + /* Search for _PR_ scope and replace it with _SB_ */ + if (*(uint32_t *)((unsigned long)ssdt + i) == 0x5f52505f) + *(uint32_t *)((unsigned long)ssdt + i) = 0x5f42535f; + } + /* Recalculate checksum */ + ssdt->checksum = 0; + ssdt->checksum = acpi_checksum((void *)ssdt, ssdt->length); +} + static unsigned long agesa_write_acpi_tables(struct device *device, unsigned long current, acpi_rsdp_t *rsdp) @@ -741,6 +756,7 @@ static unsigned long agesa_write_acpi_tables(struct device *device, printk(BIOS_DEBUG, "ACPI: * SSDT at %lx\n", current); ssdt = (acpi_header_t *)agesawrapper_getlateinitptr (PICK_PSTATE); if (ssdt != NULL) { + patch_ssdt_processor_scope(ssdt); memcpy((void *)current, ssdt, ssdt->length); ssdt = (acpi_header_t *) current; current += ssdt->length; |