forked from Mirrors/opensbi
c1b6200653
Instead of having separate ipi_init() hooks for cold and warm boot, this patch updates struct sbi_platform to have just one ipi_init() hook. The type of boot (cold or warm) is now a boolean flag parameter for the updated ipi_init() hook. Signed-off-by: Anup Patel <anup.patel@wdc.com>
119 lines
2.2 KiB
C
119 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_irqchip_init(u32 hartid, 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 = plic_cold_irqchip_init(PLIC_BASE_ADDR,
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PLIC_NUM_SOURCES,
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K210_HART_COUNT);
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if (rc)
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return rc;
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}
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return plic_warm_irqchip_init(hartid,
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(2 * hartid),
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(2 * hartid + 1));
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}
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static int k210_ipi_init(u32 hartid, 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_ipi_init(CLINT_BASE_ADDR,
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K210_HART_COUNT);
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if (rc)
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return rc;
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}
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return clint_warm_ipi_init(hartid);
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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, K210_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 = "Kendryte K210",
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.features = SBI_PLATFORM_HAS_MMIO_TIMER_VALUE,
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.hart_count = K210_HART_COUNT,
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.hart_stack_size = K210_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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.irqchip_init = k210_irqchip_init,
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.ipi_init = k210_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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.system_reboot = k210_system_reboot,
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.system_shutdown = k210_system_shutdown
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};
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