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authorDuncan Laurie <dlaurie@chromium.org>2013-03-22 11:08:39 -0700
committerRonald G. Minnich <rminnich@gmail.com>2013-04-01 23:35:48 +0200
commit9c07c8f53db10e1c93f41e37a9ba8a246fa0336e (patch)
tree24347356fef788fdb27031e8bb50ce89f4e7f370 /src/mainboard/intel/baskingridge
parentebf142a12ce4911b766bd618483434519efba0d5 (diff)
downloadcoreboot-9c07c8f53db10e1c93f41e37a9ba8a246fa0336e.tar.xz
lynxpoint: Move ACPI NVS into separate CBMEM table
The ACPI NVS region was setup in place and there was a CBMEM table that pointed to it. In order to be able to use NVS earlier the CBMEM region is allocated for NVS itself during the LPC device init and the ACPI tables point to it in CBMEM. The current cbmem region is renamed to ACPI_GNVS_PTR to indicate that it is really a pointer to the GNVS and does not actually contain the GNVS. Change-Id: I31ace432411c7f825d86ca75c63dd79cd658e891 Signed-off-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-on: http://review.coreboot.org/2970 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Diffstat (limited to 'src/mainboard/intel/baskingridge')
-rw-r--r--src/mainboard/intel/baskingridge/acpi_tables.c20
1 files changed, 13 insertions, 7 deletions
diff --git a/src/mainboard/intel/baskingridge/acpi_tables.c b/src/mainboard/intel/baskingridge/acpi_tables.c
index d94251ebda..c4adcd71d9 100644
--- a/src/mainboard/intel/baskingridge/acpi_tables.c
+++ b/src/mainboard/intel/baskingridge/acpi_tables.c
@@ -70,7 +70,6 @@ static void acpi_update_thermal_table(global_nvs_t *gnvs)
static void acpi_create_gnvs(global_nvs_t *gnvs)
{
- memset((void *)gnvs, 0, sizeof(*gnvs));
gnvs->apic = 1;
gnvs->mpen = 1; /* Enable Multi Processing */
gnvs->pcnt = dev_count_cpu();
@@ -165,6 +164,7 @@ unsigned long write_acpi_tables(unsigned long start)
#endif
acpi_header_t *ssdt;
acpi_header_t *dsdt;
+ global_nvs_t *gnvs;
current = start;
@@ -240,22 +240,28 @@ unsigned long write_acpi_tables(unsigned long start)
ALIGN_CURRENT;
acpi_add_table(rsdp, mcfg);
- /* Pack GNVS into the ACPI table area */
+ /* Update GNVS pointer into CBMEM */
+ gnvs = cbmem_find(CBMEM_ID_ACPI_GNVS);
+ if (!gnvs) {
+ printk(BIOS_DEBUG, "ACPI: Could not find CBMEM GNVS\n");
+ gnvs = (global_nvs_t *)current;
+ }
+
for (i=0; i < dsdt->length; i++) {
if (*(u32*)(((u32)dsdt) + i) == 0xC0DEBABE) {
printk(BIOS_DEBUG, "ACPI: Patching up global NVS in "
- "DSDT at offset 0x%04x -> 0x%08lx\n", i, current);
- *(u32*)(((u32)dsdt) + i) = current; // 0x92 bytes
- acpi_save_gnvs(current);
+ "DSDT at offset 0x%04x -> %p\n", i, gnvs);
+ *(u32*)(((u32)dsdt) + i) = (unsigned long)gnvs;
+ acpi_save_gnvs((unsigned long)gnvs);
break;
}
}
/* And fill it */
- acpi_create_gnvs((global_nvs_t *)current);
+ acpi_create_gnvs(gnvs);
/* And tell SMI about it */
- smm_setup_structures((void *)current, NULL, NULL);
+ smm_setup_structures(gnvs, NULL, NULL);
current += sizeof(global_nvs_t);
ALIGN_CURRENT;