e03342ff6b
- added new boards: hpm5300evk, hpm5301evklite and hpm6800evk - upgaded hpm_sdk - driver updates and bugfixes - add hpmicro BSPs to CI Signed-off-by: Fan YANG <fan.yang@hpmicro.com>
46 lines
1.1 KiB
C
46 lines
1.1 KiB
C
/*
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* Copyright (c) 2021 HPMicro
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*
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*/
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#include "hpm_common.h"
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#include "hpm_soc.h"
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#include "hpm_l1c_drv.h"
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#ifndef CONFIG_DISABLE_GLOBAL_IRQ_ON_STARTUP
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#define CONFIG_DISABLE_GLOBAL_IRQ_ON_STARTUP 0
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#endif
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void enable_plic_feature(void)
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{
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uint32_t plic_feature = 0;
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#ifndef USE_NONVECTOR_MODE
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/* enabled vector mode and preemptive priority interrupt */
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plic_feature |= HPM_PLIC_FEATURE_VECTORED_MODE;
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#endif
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#if !defined(DISABLE_IRQ_PREEMPTIVE) || (DISABLE_IRQ_PREEMPTIVE == 0)
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/* enabled preemptive priority interrupt */
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plic_feature |= HPM_PLIC_FEATURE_PREEMPTIVE_PRIORITY_IRQ;
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#endif
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__plic_set_feature(HPM_PLIC_BASE, plic_feature);
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}
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__attribute__((weak)) void system_init(void)
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{
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disable_global_irq(CSR_MSTATUS_MIE_MASK);
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disable_irq_from_intc();
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enable_plic_feature();
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enable_irq_from_intc();
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#if !CONFIG_DISABLE_GLOBAL_IRQ_ON_STARTUP
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enable_global_irq(CSR_MSTATUS_MIE_MASK);
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#endif
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#ifndef CONFIG_NOT_ENALBE_ACCESS_TO_CYCLE_CSR
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uint32_t mcounteren = read_csr(CSR_MCOUNTEREN);
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write_csr(CSR_MCOUNTEREN, mcounteren | 1); /* Enable MCYCLE */
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#endif
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}
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