/*
 * Copyright (c) 2018 Western Digital Corporation or its affiliates.
 *
 * Authors:
 *   Anup Patel <anup.patel@wdc.com>
 *
 * SPDX-License-Identifier: BSD-2-Clause
 */

#include <sbi/riscv_encoding.h>
#include <sbi/sbi_const.h>
#include <sbi/sbi_platform.h>
#include <sbi/sbi_console.h>
#include <plat/irqchip/plic.h>
#include <plat/sys/clint.h>
#include "platform.h"
#include "uarths.h"

#define K210_UART_BAUDRATE		115200

int k210_console_init(void)
{
	uarths_init(K210_UART_BAUDRATE, UARTHS_STOP_1);

	return 0;
}

void k210_console_putc(char c)
{
	uarths_putc(c);
}

static char k210_console_getc(void)
{
	return uarths_getc();
}

static int k210_cold_irqchip_init(void)
{
	return plic_cold_irqchip_init(PLIC_BASE_ADDR, PLIC_NUM_SOURCES,
				      K210_HART_COUNT);
}

static int k210_warm_irqchip_init(u32 core_id)
{
	return plic_warm_irqchip_init(core_id,
				      (2 * core_id),
				      (2 * core_id + 1));
}

static int k210_cold_ipi_init(void)
{
	return clint_cold_ipi_init(CLINT_BASE_ADDR, K210_HART_COUNT);
}

static int k210_cold_timer_init(void)
{
	return clint_cold_timer_init(CLINT_BASE_ADDR, K210_HART_COUNT);
}

static int k210_system_reboot(u32 type)
{
	/* For now nothing to do. */
	sbi_printf("System reboot\n");

	return 0;
}

static int k210_system_shutdown(u32 type)
{
	/* For now nothing to do. */
	sbi_printf("System shutdown\n");

	return 0;
}

struct sbi_platform platform = {

	.name = "Kendryte K210",
	.features = SBI_PLATFORM_HAS_MMIO_TIMER_VALUE,

	.hart_count = K210_HART_COUNT,
	.hart_stack_size = K210_HART_STACK_SIZE,
	.disabled_hart_mask = 0,

	.console_init = k210_console_init,
	.console_putc = k210_console_putc,
	.console_getc = k210_console_getc,

	.cold_irqchip_init = k210_cold_irqchip_init,
	.warm_irqchip_init = k210_warm_irqchip_init,

	.cold_ipi_init = k210_cold_ipi_init,
	.warm_ipi_init = clint_warm_ipi_init,
	.ipi_inject = clint_ipi_inject,
	.ipi_sync = clint_ipi_sync,
	.ipi_clear = clint_ipi_clear,

	.cold_timer_init = k210_cold_timer_init,
	.timer_value = clint_timer_value,
	.timer_event_stop = clint_timer_event_stop,
	.timer_event_start = clint_timer_event_start,
	.warm_timer_init = clint_warm_timer_init,

	.cold_final_init = NULL,

	.system_reboot = k210_system_reboot,
	.system_shutdown = k210_system_shutdown
};