u-boot/arch/arm/include/asm/arch-sunxi/dram.h
Hans de Goede 9a07eb0ba0 sun6i: Add dram initialization code
Add full support for dram initialization, using a fixed clock and autodetection
of the memory organization (numbers of channels, bus-width, etc.).

This is based on dram_sun6i.c and dram.h from u-boot in the Allwinner A31 SDK,
extended with extra initialization sequences and the autodetect algorithm
from boot0.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
2014-11-13 14:49:01 +01:00

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C

/*
* (C) Copyright 2007-2012
* Allwinner Technology Co., Ltd. <www.allwinnertech.com>
* Berg Xing <bergxing@allwinnertech.com>
* Tom Cubie <tangliang@allwinnertech.com>
*
* Sunxi platform dram register definition.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef _SUNXI_DRAM_H
#define _SUNXI_DRAM_H
#include <linux/types.h>
/* dram regs definition */
#if defined(CONFIG_MACH_SUN6I)
#include <asm/arch/dram_sun6i.h>
#else
#include <asm/arch/dram_sun4i.h>
#endif
unsigned long sunxi_dram_init(void);
#endif /* _SUNXI_DRAM_H */