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6c51df6859
Add support for a driver which sets up DRAM and can return information about the amount of RAM available. This is a first step towards moving RAM init to driver model. Signed-off-by: Simon Glass <sjg@chromium.org>
39 lines
759 B
C
39 lines
759 B
C
/*
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* Copyright (c) 2015 Google, Inc
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* Written by Simon Glass <sjg@chromium.org>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#ifndef __RAM_H
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#define __RAM_H
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struct ram_info {
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phys_addr_t base;
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size_t size;
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};
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struct ram_ops {
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/**
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* get_info() - Get basic memory info
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*
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* @dev: Device to check (UCLASS_RAM)
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* @info: Place to put info
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* @return 0 if OK, -ve on error
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*/
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int (*get_info)(struct udevice *dev, struct ram_info *info);
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};
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#define ram_get_ops(dev) ((struct ram_ops *)(dev)->driver->ops)
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/**
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* ram_get_info() - Get information about a RAM device
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*
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* @dev: Device to check (UCLASS_RAM)
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* @info: Returns RAM info
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* @return 0 if OK, -ve on error
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*/
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int ram_get_info(struct udevice *dev, struct ram_info *info);
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#endif
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