forked from Mirrors/opensbi
fca8c3be01
The Kendryte K210 UARTHS is compatible with SiFive UART. So use the sifive uart driver and remove the k210 uarths platform code. Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Anup Patel <anup.patel@wdc.com>
117 lines
2.5 KiB
C
117 lines
2.5 KiB
C
/*
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 2019 Western Digital Corporation or its affiliates.
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*
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* Authors:
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* Damien Le Moal <damien.lemoal@wdc.com>
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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_hart.h>
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#include <sbi/sbi_platform.h>
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#include <sbi/sbi_console.h>
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#include <sbi_utils/irqchip/plic.h>
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#include <sbi_utils/sys/clint.h>
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#include <sbi_utils/serial/sifive-uart.h>
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#include "platform.h"
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#include "sysctl.h"
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#define K210_UART_BASE_ADDR 0x38000000U
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#define K210_UART_BAUDRATE 115200
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static int k210_console_init(void)
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{
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return sifive_uart_init(K210_UART_BASE_ADDR,
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sysctl_get_cpu_freq(), K210_UART_BAUDRATE);
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}
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static int k210_irqchip_init(bool cold_boot)
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{
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int rc;
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u32 hartid = sbi_current_hartid();
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if (cold_boot) {
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rc = plic_cold_irqchip_init(PLIC_BASE_ADDR, 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, (2 * hartid), (2 * hartid + 1));
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}
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static int k210_ipi_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_ipi_init(CLINT_BASE_ADDR, 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();
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}
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static int k210_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(CLINT_BASE_ADDR, 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_timer_init();
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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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const struct sbi_platform_operations platform_ops = {
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.console_init = k210_console_init,
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.console_putc = sifive_uart_putc,
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.console_getc = sifive_uart_getc,
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.irqchip_init = k210_irqchip_init,
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.ipi_init = k210_ipi_init,
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.ipi_send = clint_ipi_send,
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.ipi_clear = clint_ipi_clear,
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.timer_init = k210_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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.system_reboot = k210_system_reboot,
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.system_shutdown = k210_system_shutdown
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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 = "Kendryte K210",
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.features = SBI_PLATFORM_HAS_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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.platform_ops_addr = (unsigned long)&platform_ops
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};
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