Patch set updated for coreboot: soc/apollolake: Add minimal accessors for sideband bus (IOSF)

[Alexandru Gagniuc]

Alexandru Gagniuc ([e-mail]) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/13304

-gerrit

commit 9f507da022122dd2ee9597fcd8e46e4d74c898ec
Author: Alexandru Gagniuc 
Date:   Mon Oct 5 13:45:22 2015 -0700

soc/apollolake: Add minimal accessors for sideband bus (IOSF)

Some configuration registers for the UART are placed behind the
    sideband bus.

Change-Id: I84a620dbd0cf4b8f3fec119836d1c8f75c7f200a
    Signed-off-by: Alexandru Gagniuc 
---
 src/soc/intel/apollolake/include/soc/iosf.h | 30 +++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/src/soc/intel/apollolake/include/soc/iosf.h b/src/soc/intel/apollolake/include/soc/iosf.h
new file mode 100644
index 0000000..c9f578c
--- /dev/null
+++ b/src/soc/intel/apollolake/include/soc/iosf.h
@@ -0,0 +1,30 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2015 Intel Corp.
+ * (Written by Alexandru Gagniuc  for Intel Corp.)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef _SOC_APOLLOLAKE_IOSF_H_
+#define _SOC_APOLLOLAKE_IOSF_H_
+
+#include <arch/io.h>
+
+inline static void iosf_write(uint8_t port, uint16_t reg, uint32_t val)
+{
+	uintptr_t base = CONFIG_IOSF_BASE_ADDRESS | (port << 16) | (reg & ~3);
+	write32((void *)base, val);
+}
+
+inline static uint32_t iosf_read(uint8_t port, uint16_t reg)
+{
+	uintptr_t base = CONFIG_IOSF_BASE_ADDRESS | (port << 16) | (reg & ~3);
+	return read32((void *)base);
+}
+
+#endif /* _SOC_APOLLOLAKE_IOSF_H_ */