[PATCH v3 37/57] x86: apl: Generate ACPI table for LPC

Simon Glass
2020-09-06T21:43:45Z

Add an ACPI table for the LPC on Apollo Lake.

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

(no changes since v1)

Changes in v1:
- Capitalise ACPI_OPS_PTR

arch/x86/cpu/apollolake/lpc.c | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)

diff --git a/arch/x86/cpu/apollolake/lpc.c b/arch/x86/cpu/apollolake/lpc.c
index b81a458f2eb..a29832c879a 100644
--- 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)
};
--
2.28.0.526.ge36021eeef-goog