116 lines
2.3 KiB
C
116 lines
2.3 KiB
C
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/*
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 2020 Western Digital Corporation or its affiliates.
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*/
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#include <sbi/sbi_platform.h>
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#include <sbi_utils/sys/htif.h>
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#include <sbi_utils/sys/clint.h>
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/* clang-format off */
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#define SPIKE_HART_COUNT 8
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#define SPIKE_HART_STACK_SIZE 8192
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#define SPIKE_CLINT_ADDR 0x2000000
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/* clang-format on */
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static int spike_final_init(bool cold_boot)
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{
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return 0;
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}
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static u32 spike_pmp_region_count(u32 hartid)
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{
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return 1;
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}
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static int spike_pmp_region_info(u32 hartid, u32 index, ulong *prot, ulong *addr,
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ulong *log2size)
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{
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int ret = 0;
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switch (index) {
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case 0:
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*prot = PMP_R | PMP_W | PMP_X;
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*addr = 0;
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*log2size = __riscv_xlen;
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break;
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default:
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ret = -1;
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break;
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};
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return ret;
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}
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static int spike_console_init(void)
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{
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return 0;
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}
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static int spike_irqchip_init(bool cold_boot)
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{
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return 0;
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}
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static int spike_ipi_init(bool cold_boot)
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{
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int ret;
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if (cold_boot) {
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ret = clint_cold_ipi_init(SPIKE_CLINT_ADDR,
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SPIKE_HART_COUNT);
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if (ret)
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return ret;
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}
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return clint_warm_ipi_init();
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}
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static int spike_timer_init(bool cold_boot)
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{
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int rc;
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if (cold_boot) {
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rc = clint_cold_timer_init(SPIKE_CLINT_ADDR,
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SPIKE_HART_COUNT, TRUE);
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if (rc)
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return rc;
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}
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return clint_warm_timer_init();
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}
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const struct sbi_platform_operations platform_ops = {
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.pmp_region_count = spike_pmp_region_count,
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.pmp_region_info = spike_pmp_region_info,
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.final_init = spike_final_init,
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.console_putc = htif_putc,
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.console_getc = htif_getc,
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.console_init = spike_console_init,
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.irqchip_init = spike_irqchip_init,
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.ipi_send = clint_ipi_send,
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.ipi_clear = clint_ipi_clear,
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.ipi_init = spike_ipi_init,
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.timer_value = clint_timer_value,
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.timer_event_stop = clint_timer_event_stop,
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.timer_event_start = clint_timer_event_start,
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.timer_init = spike_timer_init,
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.system_reboot = htif_system_down,
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.system_shutdown = htif_system_down
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};
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const struct sbi_platform platform = {
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.opensbi_version = OPENSBI_VERSION,
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.platform_version = SBI_PLATFORM_VERSION(0x0, 0x01),
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.name = "Spike",
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.features = SBI_PLATFORM_DEFAULT_FEATURES,
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.hart_count = SPIKE_HART_COUNT,
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.hart_stack_size = SPIKE_HART_STACK_SIZE,
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.disabled_hart_mask = 0,
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.platform_ops_addr = (unsigned long)&platform_ops
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};
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