platform: Remove qemu/virt directory

The OpenSBI generic platform works perfectly fine on the QEMU virt
machine so let's remove dedicated QEMU virt machine platform from
OpenSBI.

All QEMU virt machine related documentation in OpenSBI will now
suggest using OpenSBI generic platform.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>

3 files changed, 0 insertions, 185 deletions

diff --git a/platform/qemu/virt/config.mk b/platform/qemu/virt/config.mk
deleted file mode 100644
index 025cd61..0000000
--- a/platform/qemu/virt/config.mk
+++ /dev/null
@@ -1,40 +0,0 @@
-#
-# 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 virt -m 256M \
-  -nographic -kernel $(build_dir)/platform/qemu/virt/firmware/fw_payload.elf
-
-# Blobs to build
-FW_TEXT_START=0x80000000
-FW_DYNAMIC=y
-FW_JUMP=y
-ifeq ($(PLATFORM_RISCV_XLEN), 32)
-  # This needs to be 4MB aligned for 32-bit system
-  FW_JUMP_ADDR=0x80400000
-else
-  # This needs to be 2MB aligned 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 aligned for 32-bit system
-  FW_PAYLOAD_OFFSET=0x400000
-else
-  # This needs to be 2MB aligned for 64-bit system
-  FW_PAYLOAD_OFFSET=0x200000
-endif
-FW_PAYLOAD_FDT_ADDR=0x82200000
diff --git a/platform/qemu/virt/objects.mk b/platform/qemu/virt/objects.mk
deleted file mode 100644
index c382cbf..0000000
--- a/platform/qemu/virt/objects.mk
+++ /dev/null
@@ -1,10 +0,0 @@
-#
-# 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
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
-};