mirror of
https://github.com/riscv-software-src/opensbi.git
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72a0628c7e
As of today all platforms use 8KB of per-HART stack hence there is no need for each platform to define its own macro or use the magic number. Create one macro for all platforms. Platform still can use its own version if needed. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Anup Patel <anup.patel@wdc.com>
114 lines
2.2 KiB
C
114 lines
2.2 KiB
C
/*
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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_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 = SBI_PLATFORM_DEFAULT_HART_STACK_SIZE,
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.platform_ops_addr = (unsigned long)&platform_ops
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};
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