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Diffstat (limited to 'platform/qemu/virt/platform.c')
-rw-r--r-- | platform/qemu/virt/platform.c | 135 |
1 files changed, 0 insertions, 135 deletions
diff --git a/platform/qemu/virt/platform.c b/platform/qemu/virt/platform.c deleted file mode 100644 index 7836bee..0000000 --- a/platform/qemu/virt/platform.c +++ /dev/null @@ -1,135 +0,0 @@ -/* - * SPDX-License-Identifier: BSD-2-Clause - * - * Copyright (c) 2019 Western Digital Corporation or its affiliates. - * - * Authors: - * Anup Patel <anup.patel@wdc.com> - * Nick Kossifidis <mick@ics.forth.gr> - */ - -#include <sbi/riscv_asm.h> -#include <sbi/riscv_encoding.h> -#include <sbi/riscv_io.h> -#include <sbi/sbi_const.h> -#include <sbi/sbi_hart.h> -#include <sbi/sbi_platform.h> -#include <sbi_utils/fdt/fdt_fixup.h> -#include <sbi_utils/irqchip/plic.h> -#include <sbi_utils/serial/uart8250.h> -#include <sbi_utils/sys/clint.h> -#include <sbi_utils/sys/sifive_test.h> - -/* clang-format off */ - -#define VIRT_HART_COUNT 8 - -#define VIRT_TEST_ADDR 0x100000 - -#define VIRT_CLINT_ADDR 0x2000000 - -#define VIRT_PLIC_ADDR 0xc000000 -#define VIRT_PLIC_NUM_SOURCES 127 -#define VIRT_PLIC_NUM_PRIORITIES 7 - -#define VIRT_UART16550_ADDR 0x10000000 -#define VIRT_UART_BAUDRATE 115200 -#define VIRT_UART_SHIFTREG_ADDR 1843200 - -/* clang-format on */ - -static int virt_early_init(bool cold_boot) -{ - if (!cold_boot) - return 0; - - return sifive_test_init(VIRT_TEST_ADDR); -} - -static int virt_final_init(bool cold_boot) -{ - void *fdt; - - if (!cold_boot) - return 0; - - fdt = sbi_scratch_thishart_arg1_ptr(); - fdt_fixups(fdt); - - return 0; -} - -static int virt_console_init(void) -{ - return uart8250_init(VIRT_UART16550_ADDR, VIRT_UART_SHIFTREG_ADDR, - VIRT_UART_BAUDRATE, 0, 1); -} - -static int virt_irqchip_init(bool cold_boot) -{ - int rc; - u32 hartid = current_hartid(); - - if (cold_boot) { - rc = plic_cold_irqchip_init( - VIRT_PLIC_ADDR, VIRT_PLIC_NUM_SOURCES, VIRT_HART_COUNT); - if (rc) - return rc; - } - - return plic_warm_irqchip_init(hartid, (2 * hartid), (2 * hartid + 1)); -} - -static int virt_ipi_init(bool cold_boot) -{ - int rc; - - if (cold_boot) { - rc = clint_cold_ipi_init(VIRT_CLINT_ADDR, VIRT_HART_COUNT); - if (rc) - return rc; - } - - return clint_warm_ipi_init(); -} - -static int virt_timer_init(bool cold_boot) -{ - int rc; - - if (cold_boot) { - rc = clint_cold_timer_init(VIRT_CLINT_ADDR, - VIRT_HART_COUNT, TRUE); - if (rc) - return rc; - } - - return clint_warm_timer_init(); -} - -const struct sbi_platform_operations platform_ops = { - .early_init = virt_early_init, - .final_init = virt_final_init, - .console_putc = uart8250_putc, - .console_getc = uart8250_getc, - .console_init = virt_console_init, - .irqchip_init = virt_irqchip_init, - .ipi_send = clint_ipi_send, - .ipi_clear = clint_ipi_clear, - .ipi_init = virt_ipi_init, - .timer_value = clint_timer_value, - .timer_event_stop = clint_timer_event_stop, - .timer_event_start = clint_timer_event_start, - .timer_init = virt_timer_init, - .system_reset = sifive_test_system_reset, -}; - -const struct sbi_platform platform = { - .opensbi_version = OPENSBI_VERSION, - .platform_version = SBI_PLATFORM_VERSION(0x0, 0x01), - .name = "QEMU Virt Machine", - .features = SBI_PLATFORM_DEFAULT_FEATURES, - .hart_count = VIRT_HART_COUNT, - .hart_stack_size = SBI_PLATFORM_DEFAULT_HART_STACK_SIZE, - .platform_ops_addr = (unsigned long)&platform_ops -}; |