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

Message ID 20190925150052.201698-118-sjg@chromium.org
State Superseded
Delegated to: Bin Meng
Headers show
Series x86: Add initial support for apollolake | expand

Commit Message

Simon Glass Sept. 25, 2019, 3 p.m. UTC 
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@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
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Patch

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 */