Add submodule dependency filesHEADmaster

Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec

3 files changed, 315 insertions, 0 deletions

diff --git a/roms/opensbi/platform/template/config.mk b/roms/opensbi/platform/template/config.mk
new file mode 100644
index 000000000..f817342c2
--- /dev/null
+++ b/roms/opensbi/platform/template/config.mk
@@ -0,0 +1,77 @@
+#
+# SPDX-License-Identifier: BSD-2-Clause
+#
+# Copyright (c) 2019 Western Digital Corporation or its affiliates.
+#
+
+# Compiler pre-processor flags
+platform-cppflags-y =
+
+# C Compiler and assembler flags.
+platform-cflags-y =
+platform-asflags-y =
+
+# Linker flags: additional libraries and object files that the platform
+# code needs can be added here
+platform-ldflags-y =
+
+#
+# Command for platform specific "make run"
+# Useful for development and debugging on plaftform simulator (such as QEMU)
+#
+# platform-runcmd = your_platform_run.sh
+
+#
+# Platform RISC-V XLEN, ABI, ISA and Code Model configuration.
+# These are optional parameters but platforms can optionaly provide it.
+# Some of these are guessed based on GCC compiler capabilities
+#
+# PLATFORM_RISCV_XLEN = 64
+# PLATFORM_RISCV_ABI = lp64
+# PLATFORM_RISCV_ISA = rv64imafdc
+# PLATFORM_RISCV_CODE_MODEL = medany
+
+# Firmware load address configuration. This is mandatory.
+FW_TEXT_START=0x80000000
+
+# Optional parameter for path to external FDT
+# FW_FDT_PATH="path to platform flattened device tree file"
+
+#
+# Dynamic firmware configuration.
+# Optional parameters are commented out. Uncomment and define these parameters
+# as needed.
+#
+FW_DYNAMIC=<y|n>
+
+#
+# Jump firmware configuration.
+# Optional parameters are commented out. Uncomment and define these parameters
+# as needed.
+#
+FW_JUMP=<y|n>
+# This needs to be 4MB aligned for 32-bit support
+# This needs to be 2MB aligned for 64-bit support
+# ifeq ($(PLATFORM_RISCV_XLEN), 32)
+# FW_JUMP_ADDR=0x80400000
+# else
+# FW_JUMP_ADDR=0x80200000
+# endif
+# FW_JUMP_FDT_ADDR=0x82200000
+
+#
+# Firmware with payload configuration.
+# Optional parameters are commented out. Uncomment and define these parameters
+# as needed.
+#
+FW_PAYLOAD=<y|n>
+# This needs to be 4MB aligned for 32-bit support
+# This needs to be 2MB aligned for 64-bit support
+ifeq ($(PLATFORM_RISCV_XLEN), 32)
+FW_PAYLOAD_OFFSET=0x400000
+else
+FW_PAYLOAD_OFFSET=0x200000
+endif
+# FW_PAYLOAD_ALIGN=0x1000
+# FW_PAYLOAD_PATH="path to next boot stage binary image file"
+# FW_PAYLOAD_FDT_ADDR=0x82200000
diff --git a/roms/opensbi/platform/template/objects.mk b/roms/opensbi/platform/template/objects.mk
new file mode 100644
index 000000000..caaec2bee
--- /dev/null
+++ b/roms/opensbi/platform/template/objects.mk
@@ -0,0 +1,15 @@
+#
+# SPDX-License-Identifier: BSD-2-Clause
+#
+# Copyright (c) 2019 Western Digital Corporation or its affiliates.
+#
+
+# Space separated list of object file names to be compiled for the platform
+platform-objs-y += platform.o
+
+#
+# If the platform support requires a builtin device tree file, the name of
+# the device tree compiled file should be specified here. The device tree
+# source file be in the form <dt file name>.dts
+#
+# platform-objs-y += <dt file name>.o
diff --git a/roms/opensbi/platform/template/platform.c b/roms/opensbi/platform/template/platform.c
new file mode 100644
index 000000000..5bdb186c1
--- /dev/null
+++ b/roms/opensbi/platform/template/platform.c
@@ -0,0 +1,223 @@
+/*
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (c) 2019 Western Digital Corporation or its affiliates.
+ */
+
+#include <sbi/riscv_asm.h>
+#include <sbi/riscv_encoding.h>
+#include <sbi/sbi_const.h>
+#include <sbi/sbi_platform.h>
+
+/*
+ * Include these files as needed.
+ * See config.mk PLATFORM_xxx configuration parameters.
+ */
+#include <sbi_utils/irqchip/plic.h>
+#include <sbi_utils/serial/uart8250.h>
+#include <sbi_utils/sys/clint.h>
+
+#define PLATFORM_PLIC_ADDR		0xc000000
+#define PLATFORM_PLIC_NUM_SOURCES	128
+#define PLATFORM_HART_COUNT		4
+#define PLATFORM_CLINT_ADDR		0x2000000
+#define PLATFORM_UART_ADDR		0x09000000
+#define PLATFORM_UART_INPUT_FREQ	10000000
+#define PLATFORM_UART_BAUDRATE		115200
+
+static struct plic_data plic = {
+	.addr = PLATFORM_PLIC_ADDR,
+	.num_src = PLATFORM_PLIC_NUM_SOURCES,
+};
+
+static struct clint_data clint = {
+	.addr = PLATFORM_CLINT_ADDR,
+	.first_hartid = 0,
+	.hart_count = PLATFORM_HART_COUNT,
+	.has_64bit_mmio = TRUE,
+};
+
+/*
+ * Platform early initialization.
+ */
+static int platform_early_init(bool cold_boot)
+{
+	return 0;
+}
+
+/*
+ * Platform final initialization.
+ */
+static int platform_final_init(bool cold_boot)
+{
+	return 0;
+}
+
+/*
+ * Initialize the platform console.
+ */
+static int platform_console_init(void)
+{
+	/* Example if the generic UART8250 driver is used */
+	return uart8250_init(PLATFORM_UART_ADDR, PLATFORM_UART_INPUT_FREQ,
+			     PLATFORM_UART_BAUDRATE, 0, 1);
+}
+
+/*
+ * Write a character to the platform console output.
+ */
+static void platform_console_putc(char ch)
+{
+	/* Example if the generic UART8250 driver is used */
+	uart8250_putc(ch);
+}
+
+/*
+ * Read a character from the platform console input.
+ */
+static int platform_console_getc(void)
+{
+	return uart8250_getc();
+}
+
+/*
+ * Initialize the platform interrupt controller for current HART.
+ */
+static int platform_irqchip_init(bool cold_boot)
+{
+	u32 hartid = current_hartid();
+	int ret;
+
+	/* Example if the generic PLIC driver is used */
+	if (cold_boot) {
+		ret = plic_cold_irqchip_init(&plic);
+		if (ret)
+			return ret;
+	}
+
+	return plic_warm_irqchip_init(&plic, 2 * hartid, 2 * hartid + 1);
+}
+
+/*
+ * Initialize IPI for current HART.
+ */
+static int platform_ipi_init(bool cold_boot)
+{
+	int ret;
+
+	/* Example if the generic CLINT driver is used */
+	if (cold_boot) {
+		ret = clint_cold_ipi_init(&clint);
+		if (ret)
+			return ret;
+	}
+
+	return clint_warm_ipi_init();
+}
+
+/*
+ * Send IPI to a target HART
+ */
+static void platform_ipi_send(u32 target_hart)
+{
+	/* Example if the generic CLINT driver is used */
+	clint_ipi_send(target_hart);
+}
+
+/*
+ * Clear IPI for a target HART.
+ */
+static void platform_ipi_clear(u32 target_hart)
+{
+	/* Example if the generic CLINT driver is used */
+	clint_ipi_clear(target_hart);
+}
+
+/*
+ * Initialize platform timer for current HART.
+ */
+static int platform_timer_init(bool cold_boot)
+{
+	int ret;
+
+	/* Example if the generic CLINT driver is used */
+	if (cold_boot) {
+		ret = clint_cold_timer_init(&clint, NULL);
+		if (ret)
+			return ret;
+	}
+
+	return clint_warm_timer_init();
+}
+
+/*
+ * Get platform timer value.
+ */
+static u64 platform_timer_value(void)
+{
+	/* Example if the generic CLINT driver is used */
+	return clint_timer_value();
+}
+
+/*
+ * Start platform timer event for current HART.
+ */
+static void platform_timer_event_start(u64 next_event)
+{
+	/* Example if the generic CLINT driver is used */
+	clint_timer_event_start(next_event);
+}
+
+/*
+ * Stop platform timer event for current HART.
+ */
+static void platform_timer_event_stop(void)
+{
+	/* Example if the generic CLINT driver is used */
+	clint_timer_event_stop();
+}
+
+/*
+ * Check reset type and reason supported by the platform.
+ */
+static int platform_system_reset_check(u32 type, u32 reason)
+{
+	return 0;
+}
+
+/*
+ * Reset the platform.
+ */
+static void platform_system_reset(u32 type, u32 reason)
+{
+}
+
+/*
+ * Platform descriptor.
+ */
+const struct sbi_platform_operations platform_ops = {
+	.early_init		= platform_early_init,
+	.final_init		= platform_final_init,
+	.console_putc		= platform_console_putc,
+	.console_getc		= platform_console_getc,
+	.console_init		= platform_console_init,
+	.irqchip_init		= platform_irqchip_init,
+	.ipi_send		= platform_ipi_send,
+	.ipi_clear		= platform_ipi_clear,
+	.ipi_init		= platform_ipi_init,
+	.timer_value		= platform_timer_value,
+	.timer_event_stop	= platform_timer_event_stop,
+	.timer_event_start	= platform_timer_event_start,
+	.timer_init		= platform_timer_init,
+	.system_reset_check	= platform_system_reset_check,
+	.system_reset		= platform_system_reset
+};
+const struct sbi_platform platform = {
+	.opensbi_version	= OPENSBI_VERSION,
+	.platform_version	= SBI_PLATFORM_VERSION(0x0, 0x00),
+	.name			= "platform-name",
+	.features		= SBI_PLATFORM_DEFAULT_FEATURES,
+	.hart_count		= 1,
+	.hart_stack_size	= SBI_PLATFORM_DEFAULT_HART_STACK_SIZE,
+	.platform_ops_addr	= (unsigned long)&platform_ops
+};