blob: e65374f3fd79e9fe76e307f78c088df239b2a4d2 (
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
|
/* SPDX-License-Identifier: GPL-2.0-only */
#include <arch/cache.h>
#include <bootblock_common.h>
#include <soc/clk.h>
#include <soc/wakeup.h>
#include <soc/cpu.h>
/* convenient shorthand (in MB) */
#define SRAM_START (EXYNOS5_SRAM_BASE >> 20)
#define SRAM_SIZE 1
#define SRAM_END (SRAM_START + SRAM_SIZE) /* plus one... */
void bootblock_soc_init(void)
{
if (get_wakeup_state() == WAKEUP_DIRECT) {
wakeup();
/* Never returns. */
}
/* set up dcache and MMU */
mmu_init();
mmu_disable_range(0, SRAM_START);
mmu_config_range(SRAM_START, SRAM_SIZE, DCACHE_WRITEBACK);
mmu_config_range(SRAM_END, 4096 - SRAM_END, DCACHE_OFF);
dcache_mmu_enable();
/* For most ARM systems, we have to initialize firmware media source
* (ex, SPI, SD/MMC, or eMMC) now; but for Exynos platform, that is
* already handled by iROM so there's no need to setup again.
*/
}
|