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https://github.com/AsahiLinux/u-boot
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ea1af9f26b
On sun9i, the GTBUS manages transaction priority and bandwidth for multiple read ports when accessing DRAM. The initialisation mirrors the settings from Allwinner's boot0 for now, even though this may not be optimal for all applications (e.g. headless systems might want to give priority to IO modules). Adding a common callout to gtbus_init() from the SPL clock init with a weakly defined implementation in sunxi/clock.c to fallback to for platforms that don't require this. [wens@csie.org: Moved gtbus_sun9i.c to arch/arm/mach-sunxi/; style cleanup] Signed-off-by: Chen-Yu Tsai <wens@csie.org> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
21 lines
399 B
C
21 lines
399 B
C
/*
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* GTBUS initialisation
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*
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* (C) Copyright 2016 Theobroma Systems Design und Consulting GmbH
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* Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#ifndef _SUNXI_GTBUS_H
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#define _SUNXI_GTBUS_H
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#if defined(CONFIG_MACH_SUN9I)
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#include <asm/arch/gtbus_sun9i.h>
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#endif
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#ifndef __ASSEMBLY__
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void gtbus_init(void);
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#endif
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#endif
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