mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-05 02:36:39 +09:00
4e3d84066e
This does not have much impact on behavior, but makes code look more more like Linux. The use of devm_ioremap() often helps to delete .remove callbacks entirely. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
31 lines
690 B
C
31 lines
690 B
C
/*
|
|
* Copyright (C) 2016 Socionext Inc.
|
|
* Author: Masahiro Yamada <yamada.masahiro@socionext.com>
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#include <linux/io.h>
|
|
#include <linux/sizes.h>
|
|
|
|
#define UNIPHIER_SMPCTRL_ROM_RSV0 0x59801200
|
|
|
|
void uniphier_smp_setup(void);
|
|
void uniphier_secondary_startup(void);
|
|
|
|
void uniphier_smp_kick_all_cpus(void)
|
|
{
|
|
void __iomem *rom_boot_rsv0;
|
|
|
|
rom_boot_rsv0 = ioremap(UNIPHIER_SMPCTRL_ROM_RSV0, SZ_8);
|
|
|
|
writeq((u64)uniphier_secondary_startup, rom_boot_rsv0);
|
|
|
|
iounmap(rom_boot_rsv0);
|
|
|
|
uniphier_smp_setup();
|
|
|
|
asm("dsb ishst\n" /* Ensure the write to ROM_RSV0 is visible */
|
|
"sev"); /* Bring up all secondary CPUs from Boot ROM into U-Boot */
|
|
}
|