x86: apl: Generate ACPI table for LPC

Add an ACPI table for the LPC on Apollo Lake.

Signed-off-by: Simon Glass <sjg@chromium.org>

diff --git a/arch/x86/cpu/apollolake/lpc.c b/arch/x86/cpu/apollolake/lpc.c
index b81a458..a29832c 100644 (file)
--- a/arch/x86/cpu/apollolake/lpc.c
+++ b/arch/x86/cpu/apollolake/lpc.c
@@ -9,10 +9,14 @@
 #include <dm.h>
 #include <log.h>
 #include <spl.h>
+#include <acpi/acpi_table.h>
+#include <asm/cpu_common.h>
+#include <asm/intel_acpi.h>
 #include <asm/lpc_common.h>
 #include <asm/pci.h>
 #include <asm/arch/iomap.h>
 #include <asm/arch/lpc.h>
+#include <dm/acpi.h>
 #include <linux/log2.h>
 
 void lpc_enable_fixed_io_ranges(uint io_enables)
@@ -110,6 +114,19 @@ void lpc_io_setup_comm_a_b(void)
        lpc_enable_fixed_io_ranges(com_enable);
 }
 
+static int apl_acpi_lpc_get_name(const struct udevice *dev, char *out_name)
+{
+       return acpi_copy_name(out_name, "LPCB");
+}
+
+struct acpi_ops apl_lpc_acpi_ops = {
+       .get_name       = apl_acpi_lpc_get_name,
+#ifdef CONFIG_GENERATE_ACPI_TABLE
+       .write_tables   = intel_southbridge_write_acpi_tables,
+#endif
+       .inject_dsdt    = southbridge_inject_dsdt,
+};
+
 static const struct udevice_id apl_lpc_ids[] = {
        { .compatible = "intel,apl-lpc" },
        { }
@@ -120,4 +137,5 @@ U_BOOT_DRIVER(apl_lpc_drv) = {
        .name           = "intel_apl_lpc",
        .id             = UCLASS_LPC,
        .of_match       = apl_lpc_ids,
+       ACPI_OPS_PTR(&apl_lpc_acpi_ops)
 };