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https://github.com/brain-hackers/u-boot-brain
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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>
36 lines
800 B
C
36 lines
800 B
C
/*
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* Copyright (c) 2010 Samsung Electronics.
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* Minkyu Kang <mk7.kang@samsung.com>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <asm/io.h>
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#include <asm/system.h>
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#ifdef CONFIG_TARGET_ESPRESSO7420
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/*
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* Exynos7420 uses CPU0 of Cluster-1 as boot CPU. Due to this, branch_if_master
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* fails to identify as the boot CPU as the master CPU. As temporary workaround,
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* setup the slave CPU boot address as "_main".
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*/
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extern void _main(void);
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void *secondary_boot_addr = (void *)_main;
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#endif /* CONFIG_TARGET_ESPRESSO7420 */
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void reset_cpu(ulong addr)
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{
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#ifdef CONFIG_CPU_V7
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writel(0x1, samsung_get_base_swreset());
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#endif
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}
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#ifndef CONFIG_SYS_DCACHE_OFF
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void enable_caches(void)
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{
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/* Enable D-cache. I-cache is already enabled in start.S */
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dcache_enable();
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}
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#endif
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