blob: d29af41636beea3697adbee8f9a0cf5b1ccb2598 (
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
|
/* SPDX-License-Identifier: GPL-2.0-only */
#include <boot_device.h>
#include <endian.h>
#include <spi_flash.h>
#if CONFIG_ROM_SIZE >= (16 * MiB)
#define ROM_SIZE (16 * MiB)
#else
#define ROM_SIZE CONFIG_ROM_SIZE
#endif
/* The ROM is memory mapped just below 4GiB. Form a pointer for the base. */
#define rom_base ((void *)(uintptr_t)(0x100000000ULL-ROM_SIZE))
static const struct mem_region_device boot_dev =
MEM_REGION_DEV_RO_INIT(rom_base, ROM_SIZE);
const struct region_device *boot_device_ro(void)
{
return &boot_dev.rdev;
}
uint32_t spi_flash_get_mmap_windows(struct flash_mmap_window *table)
{
table->flash_base = 0;
table->host_base = (uint32_t)(uintptr_t)rom_base;
table->size = ROM_SIZE;
return 1;
}
|
