mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-04 18:41:03 +00:00
95e74a3df7
Remove the custom low-level initialization function and reuse the default low-level initialization function. But this requires the ARMV8_MULTIENTRY config option to be enabled for Exynos7420. On Exynos7420, the boot CPU belongs to the second cluster and so with ARMV8_MULTIENTRY config option enabled, the 'branch_if_master' macro fails to detect the CPU as boot CPU. As a temporary workaround the CPU_RELEASE_ADDR is set to point to '_main'. Cc: Minkyu Kang <mk7.kang@samsung.com> Cc: Alison Wang <alison.wang@nxp.com> Signed-off-by: Thomas Abraham <thomas.ab@samsung.com> Reviewed-by: Alison Wang <alison.wang@nxp.com> Reviewed-by: York Sun <york.sun@nxp.com>
35 lines
800 B
C
35 lines
800 B
C
/*
|
|
* Copyright (c) 2010 Samsung Electronics.
|
|
* Minkyu Kang <mk7.kang@samsung.com>
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <asm/io.h>
|
|
#include <asm/system.h>
|
|
|
|
#ifdef CONFIG_TARGET_ESPRESSO7420
|
|
/*
|
|
* Exynos7420 uses CPU0 of Cluster-1 as boot CPU. Due to this, branch_if_master
|
|
* fails to identify as the boot CPU as the master CPU. As temporary workaround,
|
|
* setup the slave CPU boot address as "_main".
|
|
*/
|
|
extern void _main(void);
|
|
void *secondary_boot_addr = (void *)_main;
|
|
#endif /* CONFIG_TARGET_ESPRESSO7420 */
|
|
|
|
void reset_cpu(ulong addr)
|
|
{
|
|
#ifdef CONFIG_CPU_V7
|
|
writel(0x1, samsung_get_base_swreset());
|
|
#endif
|
|
}
|
|
|
|
#ifndef CONFIG_SYS_DCACHE_OFF
|
|
void enable_caches(void)
|
|
{
|
|
/* Enable D-cache. I-cache is already enabled in start.S */
|
|
dcache_enable();
|
|
}
|
|
#endif
|