Add ACPI generation to the APL CPU driver.
Signed-off-by: Simon Glass <s...@chromium.org>
---
arch/x86/cpu/apollolake/cpu.c | 23 +++++++++++++++++++++++
1 file changed, 23 insertions(+)
diff --git a/arch/x86/cpu/apollolake/cpu.c b/arch/x86/cpu/apollolake/cpu.c
index 3ae99ccf04..0af1b0c2cb 100644
--- a/arch/x86/cpu/apollolake/cpu.c
+++ b/arch/x86/cpu/apollolake/cpu.c
@@ -8,6 +8,9 @@
#include <dm.h>
#include <asm/cpu_common.h>
#include <asm/cpu_x86.h>
+#include <asm/intel_acpi.h>
+#include <asm/msr.h>
+#include <dm/acpi.h>
static int apl_get_info(const struct udevice *dev, struct cpu_info *info)
{
@@ -19,6 +22,25 @@ static int apl_get_count(const struct udevice *dev)
return 4;
}
+static int acpi_cpu_fill_ssdt(const struct udevice *dev, struct acpi_ctx *ctx)
+{
+ struct cpu_platdata *plat = dev_get_parent_platdata(dev);
+ int ret;
+
+ /* Trigger off the first CPU */
+ if (!plat->cpu_id) {
+ ret = generate_cpu_entries(ctx, dev);
+ if (ret)
+ return log_msg_ret("generate", ret);
+ }
+
+ return 0;
+}
+
+struct acpi_ops apl_cpu_acpi_ops = {
+ .fill_ssdt = acpi_cpu_fill_ssdt,
+};
+
static const struct cpu_ops cpu_x86_apl_ops = {
.get_desc = cpu_x86_get_desc,
.get_info = apl_get_info,
@@ -37,5 +59,6 @@ U_BOOT_DRIVER(cpu_x86_apl_drv) = {
.of_match = cpu_x86_apl_ids,
.bind = cpu_x86_bind,
.ops = &cpu_x86_apl_ops,
+ acpi_ops_ptr(&apl_cpu_acpi_ops)
.flags = DM_FLAG_PRE_RELOC,
};
--
2.25.0.341.g760bfbb309-goog
