forked from Mirrors/opensbi
ab12d6ef8f
Both FW_JUMP_ADDR and FW_PAYLOAD_OFFSET, should be: 1. 4MB aligned for 32bit system 2. 2MB aligned for 64bit system Explicitly specify the above details in config.mk comments for template platform. Signed-off-by: Anup Patel <anup.patel@wdc.com>
77 lines
2.4 KiB
Makefile
77 lines
2.4 KiB
Makefile
#
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# SPDX-License-Identifier: BSD-2-Clause
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#
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# Copyright (c) 2019 Western Digital Corporation or its affiliates.
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#
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# Compiler pre-processor flags
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platform-cppflags-y =
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# C Compiler and assembler flags.
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# For a 64 bits platform, this will likely be:
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# -mabi=lp64 -march=rv64imafdc -mcmodel=medany
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# For a 32 bits platform, this will likely be:
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# -mabi=lp32 -march=rv32imafdc -mcmodel=medlow
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# You can also use the Makefile variable OPENSBI_CC_XLEN for the xlen
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# See the QEMU virt machine for an example of this
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platform-cflags-y = -mabi=lp64 -march=rv64imafdc -mcmodel=medany
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platform-asflags-y = -mabi=lp64 -march=rv64imafdc -mcmodel=medany
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# Linker flags: additional libraries and object files that the platform
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# code needs can be added here
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platform-ldflags-y =
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#
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# OpenSBI implements generic drivers for some common generic hardware. The
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# drivers currently available are the RISC-V Platform Level Interrupt
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# Controller (PLIC), RISC-V Core Local Interrupt controller (CLINT) and a UART
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# 8250 compliant serial line driver (UART8250). The following definitions allow
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# enabling the use of these generic drivers for the platform.
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#
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# PLATFORM_IRQCHIP_PLIC=<y|n>
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# PLATFORM_SYS_CLINT=<y|n>
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# PLATFORM_SERIAL_UART8250=<y|n>
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# Firmware load address configuration. This is mandatory.
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FW_TEXT_START=0x80000000
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#
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# Jump firmware configuration.
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# Optional parameters are commented out. Uncomment and define these parameters
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# as needed.
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#
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FW_JUMP=<y|n>
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# This needs to be 4MB aligned for 32-bit support
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# This needs to be 2MB aligned for 64-bit support
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# ifeq ($(OPENSBI_CC_XLEN), 32)
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# FW_JUMP_ADDR=0x80400000
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# else
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# FW_JUMP_ADDR=0x80200000
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# endif
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# FW_JUMP_FDT_ADDR=0x82200000
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#
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# Firmware with payload configuration.
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# Optional parameters are commented out. Uncomment and define these parameters
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# as needed.
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#
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FW_PAYLOAD=<y|n>
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# This needs to be 4MB aligned for 32-bit support
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# This needs to be 2MB aligned for 64-bit support
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ifeq ($(OPENSBI_CC_XLEN), 32)
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FW_PAYLOAD_OFFSET=0x400000
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else
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FW_PAYLOAD_OFFSET=0x200000
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endif
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# FW_PAYLOAD_ALIGN=0x1000
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# FW_PAYLOAD_PATH="path to next boot stage binary image file"
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# FW_PAYLOAD_FDT_PATH="path to platform flattened device tree file"
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# FW_PAYLOAD_FDT="name of the platform defined flattened device tree file"
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# FW_PAYLOAD_FDT_ADDR=0x82200000
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#
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# Allow linking against static libc for standard functions (memset, memcpy, etc)
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#
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# PLATFORM_INCLUDE_LIBC=y
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