mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-17 02:08:38 +00:00
3b44b3fdf2
This patch implements LD eFuse programming support. Armada 385 contains two
LD eFuse lines, each is 256 bit long with one additional lock bit. LD 0
line is mapped to U-Boot fuse bank 64 and LD 1 line to fuse bank 65. U-Boot
32-bit fuse words 0-8 are mapped to LD eFuse line bits 0-255. U-Boot fuse
word 9 is mapped to LD eFuse line lock bit.
So to program LD 1 General Purpose Data line, use U-Boot fuse command:
=> fuse prog -y 65 0 0x76543210
=> fuse prog -y 65 1 0xfedcba98
=> fuse prog -y 65 2 0x76543210
=> fuse prog -y 65 3 0xfedcba98
=> fuse prog -y 65 4 0x76543210
=> fuse prog -y 65 5 0xfedcba98
=> fuse prog -y 65 6 0x76543210
=> fuse prog -y 65 7 0xfedcba98
=> fuse prog -y 65 8 0x1
Signed-off-by: Pali Rohár <pali@kernel.org>
77 lines
1.5 KiB
C
77 lines
1.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
|
|
/*
|
|
* Copyright (C) 2015 Reinhard Pfau <reinhard.pfau@gdsys.cc>
|
|
*/
|
|
|
|
#ifndef _MVEBU_EFUSE_H
|
|
#define _MVEBU_EFUSE_H
|
|
|
|
#include <common.h>
|
|
|
|
struct efuse_val {
|
|
union {
|
|
struct {
|
|
u8 d[8];
|
|
} bytes;
|
|
struct {
|
|
u16 d[4];
|
|
} words;
|
|
struct {
|
|
u32 d[2];
|
|
} dwords;
|
|
};
|
|
u32 lock;
|
|
};
|
|
|
|
#if defined(CONFIG_ARMADA_38X)
|
|
|
|
enum efuse_line {
|
|
EFUSE_LINE_SECURE_BOOT = 24,
|
|
EFUSE_LINE_PUBKEY_DIGEST_0 = 26,
|
|
EFUSE_LINE_PUBKEY_DIGEST_1 = 27,
|
|
EFUSE_LINE_PUBKEY_DIGEST_2 = 28,
|
|
EFUSE_LINE_PUBKEY_DIGEST_3 = 29,
|
|
EFUSE_LINE_PUBKEY_DIGEST_4 = 30,
|
|
EFUSE_LINE_CSK_0_VALID = 31,
|
|
EFUSE_LINE_CSK_1_VALID = 32,
|
|
EFUSE_LINE_CSK_2_VALID = 33,
|
|
EFUSE_LINE_CSK_3_VALID = 34,
|
|
EFUSE_LINE_CSK_4_VALID = 35,
|
|
EFUSE_LINE_CSK_5_VALID = 36,
|
|
EFUSE_LINE_CSK_6_VALID = 37,
|
|
EFUSE_LINE_CSK_7_VALID = 38,
|
|
EFUSE_LINE_CSK_8_VALID = 39,
|
|
EFUSE_LINE_CSK_9_VALID = 40,
|
|
EFUSE_LINE_CSK_10_VALID = 41,
|
|
EFUSE_LINE_CSK_11_VALID = 42,
|
|
EFUSE_LINE_CSK_12_VALID = 43,
|
|
EFUSE_LINE_CSK_13_VALID = 44,
|
|
EFUSE_LINE_CSK_14_VALID = 45,
|
|
EFUSE_LINE_CSK_15_VALID = 46,
|
|
EFUSE_LINE_FLASH_ID = 47,
|
|
EFUSE_LINE_BOX_ID = 48,
|
|
|
|
EFUSE_LINE_MIN = 0,
|
|
EFUSE_LINE_MAX = 63,
|
|
|
|
EFUSE_LD0_LINE = 64,
|
|
EFUSE_LD1_LINE = 65,
|
|
};
|
|
|
|
#define EFUSE_LD_WORDS 9
|
|
|
|
#endif
|
|
|
|
int mvebu_efuse_init_hw(void);
|
|
|
|
int mvebu_read_efuse(int nr, struct efuse_val *val);
|
|
|
|
int mvebu_write_efuse(int nr, struct efuse_val *val);
|
|
|
|
int mvebu_lock_efuse(int nr);
|
|
|
|
void mvebu_read_ld_efuse(int ld1, u32 *line);
|
|
|
|
int mvebu_prog_ld_efuse(int ld1, u32 word, u32 val);
|
|
|
|
#endif
|