mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-16 01:38:22 +00:00
56 lines
1.6 KiB
C
56 lines
1.6 KiB
C
|
/*
|
||
|
|
* Copyright (c) 2016 Google, Inc
|
||
|
|
*
|
||
|
|
* SPDX-License-Identifier: GPL-2.0
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef __ASM_MRC_COMMON_H
|
||
|
|
#define __ASM_MRC_COMMON_H
|
||
|
|
|
||
|
|
#include <linux/linkage.h>
|
||
|
|
|
||
|
|
/**
|
||
|
|
* mrc_common_init() - Set up SDRAM
|
||
|
|
*
|
||
|
|
* This calls the memory reference code (MRC) to set up SDRAM
|
||
|
|
*
|
||
|
|
* @dev: Northbridge device
|
||
|
|
* @pei_data: Platform-specific data required by the MRC
|
||
|
|
* @use_asm_linkage: true if the call to MRC requires asmlinkage, false if it
|
||
|
|
* uses normal U-Boot calling
|
||
|
|
* @return 0 if OK, -ve on error
|
||
|
|
*/
|
||
|
|
int mrc_common_init(struct udevice *dev, void *pei_data, bool use_asm_linkage);
|
||
|
|
|
||
|
|
asmlinkage void sdram_console_tx_byte(unsigned char byte);
|
||
|
|
|
||
|
|
int mrc_locate_spd(struct udevice *dev, int size, const void **spd_datap);
|
||
|
|
|
||
|
|
void report_memory_config(void);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* mrc_add_memory_area() - Add a new usable memory area to our list
|
||
|
|
*
|
||
|
|
* Note: @start and @end must not span the first 4GB boundary
|
||
|
|
*
|
||
|
|
* @info: Place to store memory info
|
||
|
|
* @start: Start of this memory area
|
||
|
|
* @end: End of this memory area + 1
|
||
|
|
*/
|
||
|
|
int mrc_add_memory_area(struct memory_info *info, uint64_t start,
|
||
|
|
uint64_t end);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* This function looks for the highest region of memory lower than 4GB which
|
||
|
|
* has enough space for U-Boot where U-Boot is aligned on a page boundary.
|
||
|
|
* It overrides the default implementation found elsewhere which simply
|
||
|
|
* picks the end of ram, wherever that may be. The location of the stack,
|
||
|
|
* the relocation address, and how far U-Boot is moved by relocation are
|
||
|
|
* set in the global data structure.
|
||
|
|
*/
|
||
|
|
ulong mrc_common_board_get_usable_ram_top(ulong total_size);
|
||
|
|
|
||
|
|
void mrc_common_dram_init_banksize(void);
|
||
|
|
|
||
|
|
#endif
|