[U-Boot] [PATCH 117/126] x86: apollolake: Add PCH driver

[Simon Glass]

Add a driver for the apollolake Platform Controller Hub. It does not have
any functionality and is just a placeholder for now.

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

 arch/x86/cpu/apollolake/Makefile           |  1 +
 arch/x86/cpu/apollolake/pch.c              | 29 ++++++++++++++++++++++
 arch/x86/include/asm/arch-apollolake/pch.h |  9 +++++++
 3 files changed, 39 insertions(+)
 create mode 100644 arch/x86/cpu/apollolake/pch.c
 create mode 100644 arch/x86/include/asm/arch-apollolake/pch.h

diff --git a/arch/x86/cpu/apollolake/Makefile b/arch/x86/cpu/apollolake/Makefile
index 2bee6b6eb0d..2760c88c153 100644
--- a/arch/x86/cpu/apollolake/Makefile
+++ b/arch/x86/cpu/apollolake/Makefile
@@ -8,5 +8,6 @@ obj-y += gpio.o
 obj-y += hostbridge.o
 obj-y += itss.o
 obj-y += lpc.o
+obj-y += pch.o
 obj-y += pmc.o
 obj-y += uart.o
diff --git a/arch/x86/cpu/apollolake/pch.c b/arch/x86/cpu/apollolake/pch.c
new file mode 100644
index 00000000000..a51198f3d83
--- /dev/null
+++ b/arch/x86/cpu/apollolake/pch.c
@@ -0,0 +1,29 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright 2019 Google LLC
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <pch.h>
+
+static int apl_pch_probe(struct udevice *dev)
+{
+	return 0;
+}
+
+static const struct pch_ops apl_pch_ops = {
+};
+
+static const struct udevice_id apl_pch_ids[] = {
+	{ .compatible = "intel,apl-pch" },
+	{ }
+};
+
+U_BOOT_DRIVER(apl_pch) = {
+	.name		= "apl_pch",
+	.id		= UCLASS_PCH,
+	.of_match	= apl_pch_ids,
+	.probe		= apl_pch_probe,
+	.ops		= &apl_pch_ops,
+};
diff --git a/arch/x86/include/asm/arch-apollolake/pch.h b/arch/x86/include/asm/arch-apollolake/pch.h
new file mode 100644
index 00000000000..7f19903a3fe
--- /dev/null
+++ b/arch/x86/include/asm/arch-apollolake/pch.h
@@ -0,0 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright 2019 Google LLC
+ */
+
+#ifndef __ASM_ARCH_PCH_H
+#define __ASM_ARCH_PCH_H
+
+#endif /* __ASM_ARCH_PCH_H */
-- 
2.23.0.444.g18eeb5a265-goog