2023-08-30 16:21:18 +08:00
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/*
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2024-09-03 11:16:08 +08:00
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* Copyright (C) 2023-2024 ArtInChip Technology Co.,Ltd
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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2023-08-30 16:21:18 +08:00
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* Author: Dehuang Wu <dehuang.wu@artinchip.com>
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*/
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2024-09-03 11:16:08 +08:00
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#include <rtconfig.h>
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2023-08-30 16:21:18 +08:00
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#define LREG lw
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#define SREG sw
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#define REGBYTES 4
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.extern boot_params_stash
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2024-09-03 11:16:08 +08:00
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#ifndef AIC_BOOTLOADER
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.extern boot_arg
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#endif
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2023-08-30 16:21:18 +08:00
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.global save_boot_params
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.type save_boot_params, %function
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save_boot_params:
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la t0, boot_params_stash
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SREG a0, REGBYTES * 0(t0)
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SREG a1, REGBYTES * 1(t0)
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SREG a2, REGBYTES * 2(t0)
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SREG a3, REGBYTES * 3(t0)
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SREG a4, REGBYTES * 4(t0)
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SREG a5, REGBYTES * 5(t0)
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SREG a6, REGBYTES * 6(t0)
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SREG a7, REGBYTES * 7(t0)
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SREG s0, REGBYTES * 8(t0)
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SREG s1, REGBYTES * 9(t0)
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SREG s2, REGBYTES * 10(t0)
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SREG s3, REGBYTES * 11(t0)
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SREG s4, REGBYTES * 12(t0)
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SREG s5, REGBYTES * 13(t0)
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SREG s6, REGBYTES * 14(t0)
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SREG s7, REGBYTES * 15(t0)
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SREG s8, REGBYTES * 16(t0)
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SREG s9, REGBYTES * 17(t0)
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SREG s10, REGBYTES * 18(t0)
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SREG s11, REGBYTES * 19(t0)
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SREG sp, REGBYTES * 20(t0)
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SREG ra, REGBYTES * 21(t0)
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2024-09-03 11:16:08 +08:00
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#ifndef AIC_BOOTLOADER
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beqz a1, 2f
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/* copy boot_arg from SPL to OS */
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la t0, boot_arg
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mv t1, a1
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/* boot_arg size is 256 bytes */
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addi t2, t1, 0xFF
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1:
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LREG t3, (t1)
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SREG t3, (t0)
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addi t0, t0, REGBYTES
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addi t1, t1, REGBYTES
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bltu t1, t2, 1b
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2:
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#endif
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2023-08-30 16:21:18 +08:00
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j save_boot_params_ret
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