*FW_JUMP* Example
-----------------
-The *[qemu/virt]* and *[qemu/sifive_u]* platforms illustrate how to configure
-and use a *FW_JUMP* firmware. Detailed information regarding these platforms
-can be found in the platform documentation files.
+The *[qemu/virt]* platform illustrates how to configure and use a *FW_JUMP*
+firmware. Detailed information regarding these platforms can be found in the
+platform documentation files.
[qemu/virt]: ../platform/qemu_virt.md
-[qemu/sifive_u]: ../platform/qemu_sifive_u.md
*FW_PAYLOAD* Example
--------------------
-The *[qemu/virt]* and *[qemu/sifive_u]* platforms illustrate how to configure
-and use a *FW_PAYLOAD* firmware. Detailed information regarding these platforms
-can be found in the platform documentation files.
+The *[qemu/virt]* platforms illustrate how to configure and use a *FW_PAYLOAD*
+firmware. Detailed information regarding these platforms can be found in the
+platform documentation files.
The *kendryte/k210* platform also enables a build of a *FW_PAYLOAD* using an
internally defined device tree file (*FW_PAYLOAD_FDT*).
[qemu/virt]: ../platform/qemu_virt.md
-[qemu/sifive_u]: ../platform/qemu_sifive_u.md
development and tests. More details on this platform can be found in the
file *[qemu_virt.md]*.
-* **QEMU SiFive Unleashed Machine**: Platform support for the *sifive_u* QEMU
- virtual RISC-V machine. This is an emulation machine of the HiFive Unleashed
- board by SiFive. More details on this platform can be found in the file
- *[qemu_sifive_u.md]*.
-
* **SiFive FU540 SoC**: Platform support for SiFive FU540 SoC used on the
- HiFive Unleashed board. This platform is very similar to the *QEMU sifive_u*
- platform. More details on this platform can be found in the file
+ HiFive Unleashed board, as well as the *sifive_u* QEMU virtual RISC-V
+ machine. More details on this platform can be found in the file
*[sifive_fu540.md]*.
* **Kendryte K210 SoC**: Platform support for the Kendryte K210 SoC used on
facilitate the implementation.
[qemu_virt.md]: qemu_virt.md
-[qemu_sifive_u.md]: qemu_sifive_u.md
[sifive_fu540.md]: sifive_fu540.md
[ariane-fpga.md]: ariane-fpga.md
[andes_ae350.md]: andes-ae350.md
+++ /dev/null
-QEMU SiFive Unleashed Machine Platform
-======================================
-
-The **QEMU SiFive Unleashed Machine** is an emulation of the SiFive Unleashed
-platform.
-
-To build this platform specific library and firmwares, provide the
-*PLATFORM=qemu/sifive_u* parameter to the top level `make` command line.
-
-Note with QEMU v4.2 release, the QEMU *sifive_u* machine has been updated to
-closely match the SiFive HiFive Unleashed hardware and can therefore run the
-same firmware as what gets loaded onto the board, and OpenSBI's *qemu/sifive_u*
-platform should only be used with QEMU v4.1 release or before.
-
-The special *qemu/sifive_u* platform support will be dropped in the future
-OpenSBI release.
-
-Platform Options
-----------------
-
-The *QEMU SiFive Unleashed Machine* platform does not have any platform specific
-options.
-
-Executing on QEMU RISC-V 64-bit
--------------------------------
-
-**No Payload Case**
-
-Build:
-```
-make PLATFORM=qemu/sifive_u
-```
-
-Run:
-```
-qemu-system-riscv64 -M sifive_u -m 256M -display none -serial stdio \
- -kernel build/platform/qemu/sifive_u/firmware/fw_payload.elf
-```
-
-**U-Boot as a Payload**
-
-Note: the command line examples here assume that U-Boot was compiled using
-the `sifive_fu540_defconfig` configuration.
-
-Build:
-```
-make PLATFORM=qemu/sifive_u FW_PAYLOAD_PATH=<uboot_build_directory>/u-boot.bin
-```
-
-Run:
-```
-qemu-system-riscv64 -M sifive_u -m 256M -display none -serial stdio \
- -kernel build/platform/qemu/sifive_u/firmware/fw_payload.elf
-```
-or
-```
-qemu-system-riscv64 -M sifive_u -m 256M -display none -serial stdio \
- -kernel build/platform/qemu/sifive_u/firmware/fw_jump.elf \
- -device loader,file=<uboot_build_directory>/u-boot.bin,addr=0x80200000
-```
+++ /dev/null
-#
-# SPDX-License-Identifier: BSD-2-Clause
-#
-# Copyright (c) 2019 Western Digital Corporation or its affiliates.
-#
-# Authors:
-# Anup Patel <anup.patel@wdc.com>
-#
-
-# Compiler flags
-platform-cppflags-y =
-platform-cflags-y =
-platform-asflags-y =
-platform-ldflags-y =
-
-# Command for platform specific "make run"
-platform-runcmd = qemu-system-riscv$(PLATFORM_RISCV_XLEN) -M sifive_u -m 256M \
- -nographic -kernel $(build_dir)/platform/qemu/sifive_u/firmware/fw_payload.elf
-
-# Blobs to build
-FW_TEXT_START=0x80000000
-FW_DYNAMIC=y
-FW_JUMP=y
-ifeq ($(PLATFORM_RISCV_XLEN), 32)
- # This needs to be 4MB alligned for 32-bit system
- FW_JUMP_ADDR=0x80400000
-else
- # This needs to be 2MB alligned for 64-bit system
- FW_JUMP_ADDR=0x80200000
-endif
-FW_JUMP_FDT_ADDR=0x82200000
-FW_PAYLOAD=y
-ifeq ($(PLATFORM_RISCV_XLEN), 32)
- # This needs to be 4MB alligned for 32-bit system
- FW_PAYLOAD_OFFSET=0x400000
-else
- # This needs to be 2MB alligned for 64-bit system
- FW_PAYLOAD_OFFSET=0x200000
-endif
-FW_PAYLOAD_FDT_ADDR=0x82200000
+++ /dev/null
-#
-# SPDX-License-Identifier: BSD-2-Clause
-#
-# Copyright (c) 2019 Western Digital Corporation or its affiliates.
-#
-# Authors:
-# Anup Patel <anup.patel@wdc.com>
-#
-
-platform-objs-y += platform.o
+++ /dev/null
-/*
- * 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
-};
32)
# Setup 32-bit platform list
BUILD_PLATFORM_SUBDIR=("qemu/virt")
- BUILD_PLATFORM_SUBDIR+=("qemu/sifive_u")
;;
64)
# Setup 64-bit platform list
BUILD_PLATFORM_SUBDIR=("qemu/virt")
- BUILD_PLATFORM_SUBDIR+=("qemu/sifive_u")
BUILD_PLATFORM_SUBDIR+=("sifive/fu540")
BUILD_PLATFORM_SUBDIR+=("kendryte/k210")
BUILD_PLATFORM_SUBDIR+=("ariane-fpga")
projects / platform / kernel / opensbi-spacemit.git / commitdiff