50 lines
924 B
Diff
50 lines
924 B
Diff
--- a/arch/mips/Kconfig
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+++ b/arch/mips/Kconfig
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@@ -860,6 +860,9 @@ config SYNC_R4K
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config MIPS_MACHINE
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def_bool n
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+
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+config PROM_EMU
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+ def_bool n
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config NO_IOPORT
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def_bool n
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--- a/arch/mips/kernel/head.S
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+++ b/arch/mips/kernel/head.S
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@@ -142,6 +142,15 @@ FEXPORT(__kernel_entry)
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j kernel_entry
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#endif
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+#ifdef CONFIG_PROM_EMU
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+EXPORT(prom_emu_argv)
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+ .dw 0
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+ .dw prom_emu_cmdline
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+ .ascii "CMDLINE:"
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+EXPORT(prom_emu_cmdline)
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+ .fill 0x400
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+#endif
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+
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__REF
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NESTED(kernel_entry, 16, sp) # kernel entry point
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@@ -182,6 +191,19 @@ NESTED(kernel_entry, 16, sp) # kernel
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LONG_S zero, (t0)
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bne t0, t1, 1b
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+#ifdef CONFIG_PROM_EMU
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+ PTR_LA t0, prom_emu_cmdline
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+ LONG_L t1, 0(t0)
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+ beqz t1, 1f
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+
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+ li a0, 2
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+ PTR_LA a1, prom_emu_argv
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+ move a2, zero
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+ move a3, zero
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+
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+1:
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+#endif /* CONFIG_PROM_EMU */
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+
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LONG_S a0, fw_arg0 # firmware arguments
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LONG_S a1, fw_arg1
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LONG_S a2, fw_arg2
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