blob: 180a745d435156ebb37295ae9b9c047547b2ba89 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
|
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2017 Beckhoff Automation GmbH & Co. KG
* Patrick Bruenn <p.bruenn@beckhoff.com>
*/
#include <init.h>
#include <asm/global_data.h>
DECLARE_GLOBAL_DATA_PTR;
phys_size_t get_effective_memsize(void)
{
/*
* WARNING: We must override get_effective_memsize() function here
* to report only the size of the first DRAM bank. This is to make
* U-Boot relocator place U-Boot into valid memory, that is, at the
* end of the first DRAM bank. If we did not override this function
* like so, U-Boot would be placed at the address of the first DRAM
* bank + total DRAM size - sizeof(uboot), which in the setup where
* each DRAM bank contains 512MiB of DRAM would result in placing
* U-Boot into invalid memory area close to the end of the first
* DRAM bank.
*/
return get_ram_size((void *)PHYS_SDRAM_1, 1 << 30);
}
int dram_init(void)
{
gd->ram_size = get_ram_size((void *)PHYS_SDRAM_1, 1 << 30);
gd->ram_size += get_ram_size((void *)PHYS_SDRAM_2, 1 << 30);
return 0;
}
int dram_init_banksize(void)
{
gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
gd->bd->bi_dram[0].size = get_ram_size((void *)PHYS_SDRAM_1, 1 << 30);
gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
gd->bd->bi_dram[1].size = get_ram_size((void *)PHYS_SDRAM_2, 1 << 30);
return 0;
}
|
