summaryrefslogtreecommitdiff
path: root/arch/x86/cpu/baytrail/acpi.c
diff options
context:
space:
mode:
authorBin Meng <bmeng.cn@gmail.com>2016-06-17 02:13:14 -0700
committerBin Meng <bmeng.cn@gmail.com>2016-07-12 13:46:01 +0800
commit2047390abc04b921764bd23eeffc0d3e83a2a674 (patch)
tree670a73ae6af42a2a26db47a0d7d493281bfdb425 /arch/x86/cpu/baytrail/acpi.c
parentf2a751bebafed498d216f8d9a49d21f0d8335fe3 (diff)
x86: baytrail: Introduce ACPI global NVS
This introduces baytrail-specific ACPI global NVS structure, defined in both C header file and ASL file. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: George McCollister <george.mccollister@gmail.com> Tested-by: George McCollister <george.mccollister@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'arch/x86/cpu/baytrail/acpi.c')
-rw-r--r--arch/x86/cpu/baytrail/acpi.c26
1 files changed, 26 insertions, 0 deletions
diff --git a/arch/x86/cpu/baytrail/acpi.c b/arch/x86/cpu/baytrail/acpi.c
index 5ee4868cf8..fa92d8852e 100644
--- a/arch/x86/cpu/baytrail/acpi.c
+++ b/arch/x86/cpu/baytrail/acpi.c
@@ -5,10 +5,14 @@
*/
#include <common.h>
+#include <cpu.h>
+#include <dm.h>
+#include <dm/uclass-internal.h>
#include <asm/acpi_table.h>
#include <asm/ioapic.h>
#include <asm/mpspec.h>
#include <asm/tables.h>
+#include <asm/arch/global_nvs.h>
#include <asm/arch/iomap.h>
void acpi_create_fadt(struct acpi_fadt *fadt, struct acpi_facs *facs,
@@ -161,3 +165,25 @@ u32 acpi_fill_madt(u32 current)
return current;
}
+
+void acpi_create_gnvs(struct acpi_global_nvs *gnvs)
+{
+ struct udevice *dev;
+ int ret;
+
+ /* at least we have one processor */
+ gnvs->pcnt = 1;
+ /* override the processor count with actual number */
+ ret = uclass_find_first_device(UCLASS_CPU, &dev);
+ if (ret == 0 && dev != NULL) {
+ ret = cpu_get_count(dev);
+ if (ret > 0)
+ gnvs->pcnt = ret;
+ }
+
+ /* determine whether internal uart is on */
+ if (IS_ENABLED(CONFIG_INTERNAL_UART))
+ gnvs->iuart_en = 1;
+ else
+ gnvs->iuart_en = 0;
+}