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imx8: fuse: use arm_smccc_smc

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Use arm_smccc_smc to replace call_imx_sip

Signed-off-by: Peng Fan <peng.fan@nxp.com>
This commit is contained in:
Peng Fan 2020-05-11 15:16:07 +08:00
parent bf26b9421e
commit c2eaa6eb09
1 changed files with 12 additions and 7 deletions
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19
drivers/misc/imx8/fuse.c
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@ -9,6 +9,7 @@
#include <fuse.h>
#include <asm/arch/sci/sci.h>
#include <asm/arch/sys_proto.h>
#include <linux/arm-smccc.h>
DECLARE_GLOBAL_DATA_PTR;
@ -36,22 +37,24 @@ int fuse_read(u32 bank, u32 word, u32 *val)
int fuse_sense(u32 bank, u32 word, u32 *val)
{
unsigned long ret = 0, value = 0;
struct arm_smccc_res res;
if (bank != 0) {
printf("Invalid bank argument, ONLY bank 0 is supported\n");
return -EINVAL;
}
ret = call_imx_sip_ret2(FSL_SIP_OTP_READ, (unsigned long)word, &value,
0, 0);
*val = (u32)value;
arm_smccc_smc(FSL_SIP_OTP_READ, (unsigned long)word, 0, 0,
0, 0, 0, 0, &res);
*val = (u32)res.a1;
return ret;
return res.a0;
}
int fuse_prog(u32 bank, u32 word, u32 val)
{
struct arm_smccc_res res;
if (bank != 0) {
printf("Invalid bank argument, ONLY bank 0 is supported\n");
return -EINVAL;
@ -78,8 +81,10 @@ int fuse_prog(u32 bank, u32 word, u32 val)
}
}
return call_imx_sip(FSL_SIP_OTP_WRITE, (unsigned long)word,
(unsigned long)val, 0, 0);
arm_smccc_smc(FSL_SIP_OTP_WRITE, (unsigned long)word,
(unsigned long)val, 0, 0, 0, 0, 0, &res);
return res.a0;
}
int fuse_override(u32 bank, u32 word, u32 val)