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https://github.com/brain-hackers/u-boot-brain
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a87eb0405f
This function will be used by i.MX8 fuse driver. Signed-off-by: Peng Fan <peng.fan@nxp.com>
45 lines
813 B
C
45 lines
813 B
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright 2017 NXP
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*/
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#include <common.h>
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#include <asm/arch/sys_proto.h>
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unsigned long call_imx_sip(unsigned long id, unsigned long reg0,
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unsigned long reg1, unsigned long reg2)
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{
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struct pt_regs regs;
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regs.regs[0] = id;
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regs.regs[1] = reg0;
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regs.regs[2] = reg1;
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regs.regs[3] = reg2;
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smc_call(®s);
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return regs.regs[0];
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}
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/*
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* Do an SMC call to return 2 registers by having reg1 passed in by reference
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*/
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unsigned long call_imx_sip_ret2(unsigned long id, unsigned long reg0,
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unsigned long *reg1, unsigned long reg2,
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unsigned long reg3)
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{
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struct pt_regs regs;
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regs.regs[0] = id;
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regs.regs[1] = reg0;
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regs.regs[2] = *reg1;
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regs.regs[3] = reg2;
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regs.regs[4] = reg3;
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smc_call(®s);
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*reg1 = regs.regs[1];
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return regs.regs[0];
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}
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