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