mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-09 04:36:16 +09:00
83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
98 lines
2.1 KiB
C
98 lines
2.1 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2014-2016, Toradex AG
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*/
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/*
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* Helpers for i.MX OTP fusing during module production
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*/
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#include <common.h>
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#ifndef CONFIG_SPL_BUILD
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#include <console.h>
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#include <fuse.h>
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static int mfgr_fuse(void)
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{
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unsigned val, val6;
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fuse_sense(0, 5, &val);
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printf("Fuse 0, 5: %8x\n", val);
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fuse_sense(0, 6, &val6);
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printf("Fuse 0, 6: %8x\n", val6);
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fuse_sense(4, 3, &val);
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printf("Fuse 4, 3: %8x\n", val);
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fuse_sense(4, 2, &val);
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printf("Fuse 4, 2: %8x\n", val);
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if (val6 & 0x10) {
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puts("BT_FUSE_SEL already fused, will do nothing\n");
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return CMD_RET_FAILURE;
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}
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/* boot cfg */
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fuse_prog(0, 5, 0x00005072);
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/* BT_FUSE_SEL */
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fuse_prog(0, 6, 0x00000010);
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return CMD_RET_SUCCESS;
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}
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int do_mfgr_fuse(cmd_tbl_t *cmdtp, int flag, int argc,
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char * const argv[])
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{
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int ret;
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puts("Fusing...\n");
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ret = mfgr_fuse();
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if (ret == CMD_RET_SUCCESS)
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puts("done.\n");
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else
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puts("failed.\n");
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return ret;
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}
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int do_updt_fuse(cmd_tbl_t *cmdtp, int flag, int argc,
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char * const argv[])
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{
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unsigned val;
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int ret;
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int confirmed = argc >= 1 && !strcmp(argv[1], "-y");
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/* can be used in scripts for command availability check */
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if (argc >= 1 && !strcmp(argv[1], "-n"))
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return CMD_RET_SUCCESS;
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/* boot cfg */
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fuse_sense(0, 5, &val);
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printf("Fuse 0, 5: %8x\n", val);
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if (val & 0x10) {
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puts("Fast boot mode already fused, no need to fuse\n");
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return CMD_RET_SUCCESS;
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}
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if (!confirmed) {
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puts("Warning: Programming fuses is an irreversible operation!\n"
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" Updating to fast boot mode prevents easy\n"
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" downgrading to previous BSP versions.\n"
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"\nReally perform this fuse programming? <y/N>\n");
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if (!confirm_yesno())
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return CMD_RET_FAILURE;
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}
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puts("Fusing fast boot mode...\n");
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ret = fuse_prog(0, 5, 0x00005072);
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if (ret == CMD_RET_SUCCESS)
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puts("done.\n");
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else
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puts("failed.\n");
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return ret;
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}
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U_BOOT_CMD(
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mfgr_fuse, 1, 0, do_mfgr_fuse,
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"OTP fusing during module production",
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""
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);
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U_BOOT_CMD(
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updt_fuse, 2, 0, do_updt_fuse,
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"OTP fusing during module update",
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"updt_fuse [-n] [-y] - boot cfg fast boot mode fusing"
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);
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#endif /* CONFIG_SPL_BUILD */
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