mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-05 10:46:15 +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>
90 lines
2.2 KiB
C
90 lines
2.2 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Copyright 2008-2015 Freescale Semiconductor, Inc.
|
|
*
|
|
* Command for encapsulating DEK blob
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <command.h>
|
|
#include <environment.h>
|
|
#include <malloc.h>
|
|
#include <asm/byteorder.h>
|
|
#include <linux/compiler.h>
|
|
#include <fsl_sec.h>
|
|
#include <asm/arch/clock.h>
|
|
#include <mapmem.h>
|
|
|
|
/**
|
|
* blob_dek() - Encapsulate the DEK as a blob using CAM's Key
|
|
* @src: - Address of data to be encapsulated
|
|
* @dst: - Desination address of encapsulated data
|
|
* @len: - Size of data to be encapsulated
|
|
*
|
|
* Returns zero on success,and negative on error.
|
|
*/
|
|
static int blob_encap_dek(const u8 *src, u8 *dst, u32 len)
|
|
{
|
|
int ret = 0;
|
|
u32 jr_size = 4;
|
|
|
|
u32 out_jr_size = sec_in32(CONFIG_SYS_FSL_JR0_ADDR + 0x102c);
|
|
if (out_jr_size != jr_size) {
|
|
hab_caam_clock_enable(1);
|
|
sec_init();
|
|
}
|
|
|
|
if (!((len == 128) | (len == 192) | (len == 256))) {
|
|
debug("Invalid DEK size. Valid sizes are 128, 192 and 256b\n");
|
|
return -1;
|
|
}
|
|
|
|
len /= 8;
|
|
ret = blob_dek(src, dst, len);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* do_dek_blob() - Handle the "dek_blob" command-line command
|
|
* @cmdtp: Command data struct pointer
|
|
* @flag: Command flag
|
|
* @argc: Command-line argument count
|
|
* @argv: Array of command-line arguments
|
|
*
|
|
* Returns zero on success, CMD_RET_USAGE in case of misuse and negative
|
|
* on error.
|
|
*/
|
|
static int do_dek_blob(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
|
|
{
|
|
uint32_t src_addr, dst_addr, len;
|
|
uint8_t *src_ptr, *dst_ptr;
|
|
int ret = 0;
|
|
|
|
if (argc != 4)
|
|
return CMD_RET_USAGE;
|
|
|
|
src_addr = simple_strtoul(argv[1], NULL, 16);
|
|
dst_addr = simple_strtoul(argv[2], NULL, 16);
|
|
len = simple_strtoul(argv[3], NULL, 10);
|
|
|
|
src_ptr = map_sysmem(src_addr, len/8);
|
|
dst_ptr = map_sysmem(dst_addr, BLOB_SIZE(len/8));
|
|
|
|
ret = blob_encap_dek(src_ptr, dst_ptr, len);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/***************************************************/
|
|
static char dek_blob_help_text[] =
|
|
"src dst len - Encapsulate and create blob of data\n"
|
|
" $len bits long at address $src and\n"
|
|
" store the result at address $dst.\n";
|
|
|
|
U_BOOT_CMD(
|
|
dek_blob, 4, 1, do_dek_blob,
|
|
"Data Encryption Key blob encapsulation",
|
|
dek_blob_help_text
|
|
);
|