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Merge patch series "Minor fixes for the k3_fuse driver"

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Anshul Dalal <anshuld@ti.com> says:

This series adds some minor *non-critical* fixes to the k3_fuse misc
driver in U-Boot.

Link: https://lore.kernel.org/r/20260226-k3_fuse_fixes-v1-0-86c81c298bc5@ti.com
This commit is contained in:
Tom Rini
2026-03-13 14:58:33 -06:00
parent 7403d26bea 34c7bcacfa
commit e298a3faa3
1 changed files with 15 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

23
drivers/misc/k3_fuse.c
View File

@@ -7,6 +7,7 @@
#include <stdio.h>
#include <fuse.h>
#include <linux/arm-smccc.h>
#include <linux/bitops.h>
#include <string.h>
#define K3_SIP_OTP_WRITEBUFF 0xC2000000
@@ -28,20 +29,19 @@ int fuse_read(u32 bank, u32 word, u32 *val)
*val = res.a1;
if (res.a0 != 0)
printf("SMC call failed: Error code %lu\n", res.a0);
printf("SMC call failed: Error code %ld\n", res.a0);
return res.a0;
}
int fuse_sense(u32 bank, u32 word, u32 *val)
{
return -EPERM;
return fuse_read(bank, word, val);
}
int fuse_prog(u32 bank, u32 word, u32 val)
{
struct arm_smccc_res res;
u32 mask = val;
if (bank != 0U) {
printf("Invalid bank argument, ONLY bank 0 is supported\n");
@@ -49,11 +49,18 @@ int fuse_prog(u32 bank, u32 word, u32 val)
}
/* Make SiP SMC call and send the word, val and mask in the parameter register */
arm_smccc_smc(K3_SIP_OTP_WRITE, word,
val, mask, 0, 0, 0, 0, &res);
arm_smccc_smc(K3_SIP_OTP_WRITE, bank, word,
val, GENMASK(25, 0), 0, 0, 0, &res);
if (res.a0 != 0)
printf("SMC call failed: Error code %lu\n", res.a0);
if (res.a0 != 0) {
printf("SMC call failed: Error code %ld\n", res.a0);
return res.a0;
}
if (res.a1 != val) {
printf("Readback failed, written 0x%x readback 0x%lx\n", val, res.a1);
return -EINVAL;
}
return res.a0;
}
@@ -72,7 +79,7 @@ int fuse_writebuff(ulong addr)
0, 0, 0, 0, 0, 0, &res);
if (res.a0 != 0)
printf("SMC call failed: Error code %lu\n", res.a0);
printf("SMC call failed: Error code %ld\n", res.a0);
return res.a0;
}