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Diffstat (limited to 'platform/qemu/sifive_u/platform.c')
-rw-r--r--platform/qemu/sifive_u/platform.c158
1 files changed, 0 insertions, 158 deletions
diff --git a/platform/qemu/sifive_u/platform.c b/platform/qemu/sifive_u/platform.c
deleted file mode 100644
index 47d6b23..0000000
--- a/platform/qemu/sifive_u/platform.c
+++ /dev/null
@@ -1,158 +0,0 @@
-/*
- * SPDX-License-Identifier: BSD-2-Clause
- *
- * Copyright (c) 2019 Western Digital Corporation or its affiliates.
- *
- * Authors:
- * Anup Patel <anup.patel@wdc.com>
- */
-
-#include <sbi/riscv_encoding.h>
-#include <sbi/sbi_const.h>
-#include <sbi/sbi_hart.h>
-#include <sbi/sbi_platform.h>
-#include <sbi_utils/irqchip/plic.h>
-#include <sbi_utils/serial/sifive-uart.h>
-#include <sbi_utils/sys/clint.h>
-
-/* clang-format off */
-
-#define SIFIVE_U_HART_COUNT 4
-#define SIFIVE_U_HART_STACK_SIZE 8192
-
-#define SIFIVE_U_SYS_CLK 1000000000
-#define SIFIVE_U_PERIPH_CLK (SIFIVE_U_SYS_CLK / 2)
-
-#define SIFIVE_U_CLINT_ADDR 0x2000000
-
-#define SIFIVE_U_PLIC_ADDR 0xc000000
-#define SIFIVE_U_PLIC_NUM_SOURCES 0x35
-#define SIFIVE_U_PLIC_NUM_PRIORITIES 7
-
-#define SIFIVE_U_UART0_ADDR 0x10010000
-#define SIFIVE_U_UART1_ADDR 0x10011000
-
-/* clang-format on */
-
-static int sifive_u_final_init(bool cold_boot)
-{
- void *fdt;
-
- if (!cold_boot)
- return 0;
-
- fdt = sbi_scratch_thishart_arg1_ptr();
- plic_fdt_fixup(fdt, "riscv,plic0");
-
- return 0;
-}
-
-static u32 sifive_u_pmp_region_count(u32 hartid)
-{
- return 1;
-}
-
-static int sifive_u_pmp_region_info(u32 hartid, u32 index, ulong *prot,
- ulong *addr, ulong *log2size)
-{
- int ret = 0;
-
- switch (index) {
- case 0:
- *prot = PMP_R | PMP_W | PMP_X;
- *addr = 0;
- *log2size = __riscv_xlen;
- break;
- default:
- ret = -1;
- break;
- };
-
- return ret;
-}
-
-static int sifive_u_console_init(void)
-{
- return sifive_uart_init(SIFIVE_U_UART0_ADDR, SIFIVE_U_PERIPH_CLK,
- 115200);
-}
-
-static int sifive_u_irqchip_init(bool cold_boot)
-{
- int rc;
- u32 hartid = sbi_current_hartid();
-
- if (cold_boot) {
- rc = plic_cold_irqchip_init(SIFIVE_U_PLIC_ADDR,
- SIFIVE_U_PLIC_NUM_SOURCES,
- SIFIVE_U_HART_COUNT);
- if (rc)
- return rc;
- }
-
- return plic_warm_irqchip_init(hartid, (2 * hartid), (2 * hartid + 1));
-}
-
-static int sifive_u_ipi_init(bool cold_boot)
-{
- int rc;
-
- if (cold_boot) {
- rc = clint_cold_ipi_init(SIFIVE_U_CLINT_ADDR,
- SIFIVE_U_HART_COUNT);
- if (rc)
- return rc;
- }
-
- return clint_warm_ipi_init();
-}
-
-static int sifive_u_timer_init(bool cold_boot)
-{
- int rc;
-
- if (cold_boot) {
- rc = clint_cold_timer_init(SIFIVE_U_CLINT_ADDR,
- SIFIVE_U_HART_COUNT, TRUE);
- if (rc)
- return rc;
- }
-
- return clint_warm_timer_init();
-}
-
-static int sifive_u_system_down(u32 type)
-{
- /* For now nothing to do. */
- return 0;
-}
-
-const struct sbi_platform_operations platform_ops = {
- .pmp_region_count = sifive_u_pmp_region_count,
- .pmp_region_info = sifive_u_pmp_region_info,
- .final_init = sifive_u_final_init,
- .console_putc = sifive_uart_putc,
- .console_getc = sifive_uart_getc,
- .console_init = sifive_u_console_init,
- .irqchip_init = sifive_u_irqchip_init,
- .ipi_send = clint_ipi_send,
- .ipi_clear = clint_ipi_clear,
- .ipi_init = sifive_u_ipi_init,
- .timer_value = clint_timer_value,
- .timer_event_stop = clint_timer_event_stop,
- .timer_event_start = clint_timer_event_start,
- .timer_init = sifive_u_timer_init,
- .system_reboot = sifive_u_system_down,
- .system_shutdown = sifive_u_system_down
-};
-
-const struct sbi_platform platform = {
- .opensbi_version = OPENSBI_VERSION,
- .platform_version = SBI_PLATFORM_VERSION(0x0, 0x01),
- .name = "QEMU SiFive Unleashed",
- .features = SBI_PLATFORM_DEFAULT_FEATURES,
- .hart_count = SIFIVE_U_HART_COUNT,
- .hart_stack_size = SIFIVE_U_HART_STACK_SIZE,
- .disabled_hart_mask = 0,
- .platform_ops_addr = (unsigned long)&platform_ops
-};