arm: exynos7420: remove custome low level init function
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>
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@ -126,6 +126,7 @@ choice
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config TARGET_ESPRESSO7420
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bool "ESPRESSO7420 board"
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select ARM64
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select ARMV8_MULTIENTRY
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select SUPPORT_SPL
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select OF_CONTROL
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select SPL_DISABLE_OF_CONTROL
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@ -9,6 +9,16 @@
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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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@ -23,11 +33,3 @@ void enable_caches(void)
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dcache_enable();
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}
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#endif
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#ifdef CONFIG_ARM64
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void lowlevel_init(void)
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{
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armv8_switch_to_el2();
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armv8_switch_to_el1();
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}
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#endif
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@ -47,6 +47,7 @@
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#define CONFIG_IRAM_BASE 0x02100000
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#define CONFIG_IRAM_SIZE 0x58000
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#define CONFIG_IRAM_END (CONFIG_IRAM_BASE + CONFIG_IRAM_SIZE)
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#define CPU_RELEASE_ADDR secondary_boot_addr
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/* Number of CPUs available */
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#define CONFIG_CORE_COUNT 0x8
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