forked from Mirrors/opensbi
6ffe1bed09
Move the .align directives after switching the section. We want to align the start of the current section, not the end of the previous section. This also obsoletes the misguided workaround of disabling relaxation. Signed-off-by: Andreas Schwab <schwab@suse.de> Reviewed-by: Anup Patel <anup.patel@wdc.com>
123 lines
2.4 KiB
ArmAsm
123 lines
2.4 KiB
ArmAsm
/*
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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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* Authors:
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* Anup Patel <anup.patel@wdc.com>
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*/
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#include "fw_base.S"
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.section .entry, "ax", %progbits
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.align 3
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.global fw_boot_hart
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/*
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* This function is called very early even before
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* fw_save_info() is called.
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* We can only use a0, a1, and a2 registers here.
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* The boot HART id should be returned in 'a0'.
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*/
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fw_boot_hart:
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li a0, -1
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ret
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.section .entry, "ax", %progbits
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.align 3
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.global fw_save_info
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/*
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* We can only use a0, a1, a2, a3, and a4 registers here.
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* The a0, a1, and a2 registers will be same as passed by
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* previous booting stage.
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* Nothing to be returned here.
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*/
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fw_save_info:
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ret
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.section .entry, "ax", %progbits
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.align 3
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.global fw_prev_arg1
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/*
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* We can only use a0, a1, and a2 registers here.
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* The a0, a1, and a2 registers will be same as passed by
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* previous booting stage.
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* The previous arg1 should be returned in 'a0'.
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*/
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fw_prev_arg1:
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#ifdef FW_PAYLOAD_FDT_PATH
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la a0, fdt_bin
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#else
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add a0, zero, zero
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#endif
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ret
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.section .entry, "ax", %progbits
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.align 3
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.global fw_next_arg1
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/*
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* We can only use a0, a1, and a2 registers here.
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* The a0, a1, and a2 registers will be same as passed by
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* previous booting stage.
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* The next arg1 should be returned in 'a0'.
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*/
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fw_next_arg1:
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#ifdef FW_PAYLOAD_FDT_ADDR
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li a0, FW_PAYLOAD_FDT_ADDR
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#else
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add a0, a1, zero
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#endif
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ret
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.section .entry, "ax", %progbits
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.align 3
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.global fw_next_addr
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/*
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* We can only use a0, a1, and a2 registers here.
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* The next address should be returned in 'a0'.
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*/
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fw_next_addr:
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la a0, payload_bin
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ret
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.section .entry, "ax", %progbits
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.align 3
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.global fw_next_mode
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/*
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* We can only use a0, a1, and a2 registers here.
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* The next address should be returned in 'a0'.
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*/
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fw_next_mode:
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li a0, PRV_S
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ret
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.section .entry, "ax", %progbits
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.align 3
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.global fw_options
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/*
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* We can only use a0, a1, and a2 registers here.
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* The 'a4' register will have default options.
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* The next address should be returned in 'a0'.
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*/
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fw_options:
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add a0, zero, zero
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ret
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#ifdef FW_PAYLOAD_FDT_PATH
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.section .text, "ax", %progbits
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.align 4
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.globl fdt_bin
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fdt_bin:
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.incbin FW_PAYLOAD_FDT_PATH
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#endif
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.section .payload, "ax", %progbits
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.align 4
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.globl payload_bin
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payload_bin:
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#ifndef FW_PAYLOAD_PATH
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wfi
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j payload_bin
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#else
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.incbin FW_PAYLOAD_PATH
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#endif
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