blob: c3ef6b009000e5b579b17c2fa0110207247e3b36 (
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
46
47
48
49
50
51
52
53
54
55
|
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2020 Ahmad Fatoum <a.fatoum@pengutronix.de>
*/
#include <common.h>
#include <init.h>
#include <mach/ddramc.h>
#include <mach/hardware.h>
#include <asm/barebox-arm.h>
#include <mach/at91_ddrsdrc.h>
#include <mach/sama5_bootsource.h>
#include <asm/memory.h>
#include <pbl.h>
#include <io.h>
static unsigned sama5_ramsize(void __iomem *base)
{
return at91_get_ddram_size(base, true);
}
void __noreturn sama5d2_barebox_entry(unsigned int r4, void *boarddata)
{
__sama5d2_stashed_bootrom_r4 = r4;
barebox_arm_entry(SAMA5_DDRCS, sama5_ramsize(SAMA5D2_BASE_MPDDRC),
boarddata);
}
static int sama5_ddr_probe(struct device_d *dev)
{
struct resource *iores;
void __iomem *base;
iores = dev_request_mem_resource(dev, 0);
if (IS_ERR(iores))
return PTR_ERR(iores);
base = IOMEM(iores->start);
arm_add_mem_device("ram0", SAMA5_DDRCS, sama5_ramsize(base));
return 0;
}
static struct of_device_id sama5_ddr_dt_ids[] = {
{ .compatible = "atmel,sama5d3-ddramc" },
{ /* sentinel */ }
};
static struct driver_d sama5_ddr_driver = {
.name = "sama5-ddramc",
.probe = sama5_ddr_probe,
.of_compatible = sama5_ddr_dt_ids,
};
mem_platform_driver(sama5_ddr_driver);
|
