forked from Mirrors/opensbi
d369e721e8
We expect the payloads to be 4 bit alligned as we later AND them with ~0xf. As most of the addresses are manually specified we don't really need this, but better to be over cautious. Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
62 lines
1.0 KiB
ArmAsm
62 lines
1.0 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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.align 4
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.section .entry, "ax", %progbits
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.global fw_prev_arg1
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fw_prev_arg1:
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/* We return previous arg1 in 'a0' */
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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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.align 4
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.section .entry, "ax", %progbits
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.global fw_next_arg1
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fw_next_arg1:
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/* We return next arg1 in 'a0' */
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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, zero, zero
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#endif
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ret
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.align 4
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.section .entry, "ax", %progbits
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.global fw_next_addr
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fw_next_addr:
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/* We return next address in 'a0' */
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la a0, payload_bin
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ret
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#ifdef FW_PAYLOAD_FDT_PATH
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.align 4
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.section .text, "ax", %progbits
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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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.align 4
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.section .payload, "ax", %progbits
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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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