forked from Mirrors/opensbi
88b173b33b
As of now, uboot doesn't have support for SMP. Moreover, unleashed board has a E51 hart which doesn't not support S mode. We should only boot only 1 non-zero hart. Signed-off-by: Atish Patra <atish.patra@wdc.com>
110 lines
2.2 KiB
C
110 lines
2.2 KiB
C
/*
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* Copyright (c) 2018 Western Digital Corporation or its affiliates.
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*
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* Authors:
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* Anup Patel <anup.patel@wdc.com>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <sbi/riscv_encoding.h>
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#include <sbi/sbi_const.h>
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#include <sbi/sbi_platform.h>
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#include <sbi/sbi_console.h>
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#include <plat/irqchip/plic.h>
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#include <plat/sys/clint.h>
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#include "platform.h"
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#include "uarths.h"
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#define K210_UART_BAUDRATE 115200
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int k210_console_init(void)
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{
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uarths_init(K210_UART_BAUDRATE, UARTHS_STOP_1);
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return 0;
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}
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void k210_console_putc(char c)
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{
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uarths_putc(c);
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}
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static char k210_console_getc(void)
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{
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return uarths_getc();
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}
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static int k210_cold_irqchip_init(void)
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{
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return plic_cold_irqchip_init(PLIC_BASE_ADDR, PLIC_NUM_SOURCES,
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PLAT_HART_COUNT);
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}
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static int k210_warm_irqchip_init(u32 core_id)
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{
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return plic_warm_irqchip_init(core_id,
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(2 * core_id),
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(2 * core_id + 1));
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}
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static int k210_cold_ipi_init(void)
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{
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return clint_cold_ipi_init(CLINT_BASE_ADDR, PLAT_HART_COUNT);
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}
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static int k210_cold_timer_init(void)
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{
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return clint_cold_timer_init(CLINT_BASE_ADDR, PLAT_HART_COUNT);
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}
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static int k210_system_reboot(u32 type)
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{
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/* For now nothing to do. */
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sbi_printf("System reboot\n");
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return 0;
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}
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static int k210_system_shutdown(u32 type)
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{
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/* For now nothing to do. */
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sbi_printf("System shutdown\n");
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return 0;
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}
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struct sbi_platform platform = {
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.name = STRINGIFY(PLAT_NAME),
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.features = SBI_PLATFORM_HAS_MMIO_TIMER_VALUE,
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.hart_count = PLAT_HART_COUNT,
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.hart_stack_size = PLAT_HART_STACK_SIZE,
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.disabled_hart_mask = 0,
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.console_init = k210_console_init,
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.console_putc = k210_console_putc,
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.console_getc = k210_console_getc,
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.cold_irqchip_init = k210_cold_irqchip_init,
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.warm_irqchip_init = k210_warm_irqchip_init,
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.cold_ipi_init = k210_cold_ipi_init,
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.warm_ipi_init = clint_warm_ipi_init,
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.ipi_inject = clint_ipi_inject,
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.ipi_sync = clint_ipi_sync,
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.ipi_clear = clint_ipi_clear,
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.cold_timer_init = k210_cold_timer_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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.warm_timer_init = clint_warm_timer_init,
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.cold_final_init = NULL,
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.system_reboot = k210_system_reboot,
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.system_shutdown = k210_system_shutdown
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};
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