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d678a59d2d
When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"' I failed to notice that b4 noticed it was based on next and so took that as the base commit and merged that part of next to master. This reverts commitc8ffd1356d, reversing changes made to2ee6f3a5f7. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
149 lines
3.2 KiB
C
149 lines
3.2 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright 2016 Freescale Semiconductor, Inc.
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* Copyright 2017 NXP
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*
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* These commands enable the use of the CAAM MPPubK-generation and MPSign
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* functions in supported i.MX devices.
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*/
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#include <asm/byteorder.h>
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#include <asm/arch/clock.h>
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#include <linux/compiler.h>
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#include <command.h>
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#include <common.h>
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#include <env.h>
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#include <fsl_sec.h>
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#include <mapmem.h>
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#include <memalign.h>
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/**
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* do_mfgprot() - Handle the "mfgprot" command-line command
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* @cmdtp: Command data struct pointer
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* @flag: Command flag
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* @argc: Command-line argument count
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* @argv: Array of command-line arguments
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*
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* Returns zero on success, CMD_RET_USAGE in case of misuse and negative
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* on error.
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*/
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static int do_mfgprot(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
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{
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u8 *m_ptr, *dgst_ptr, *c_ptr, *d_ptr, *dst_ptr;
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char *pubk, *sign, *sel;
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int m_size, i, ret;
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u32 m_addr;
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pubk = "pubk";
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sign = "sign";
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sel = argv[1];
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/* Enable HAB clock */
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hab_caam_clock_enable(1);
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u32 out_jr_size = sec_in32(CFG_SYS_FSL_JR0_ADDR +
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FSL_CAAM_ORSR_JRa_OFFSET);
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if (out_jr_size != FSL_CAAM_MAX_JR_SIZE)
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sec_init();
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if (strcmp(sel, pubk) == 0) {
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dst_ptr = malloc_cache_aligned(FSL_CAAM_MP_PUBK_BYTES);
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if (!dst_ptr)
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return -ENOMEM;
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ret = gen_mppubk(dst_ptr);
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if (ret) {
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free(dst_ptr);
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return ret;
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}
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/* Output results */
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puts("Public key:\n");
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for (i = 0; i < FSL_CAAM_MP_PUBK_BYTES; i++)
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printf("%02X", (dst_ptr)[i]);
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puts("\n");
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free(dst_ptr);
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} else if (strcmp(sel, sign) == 0) {
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if (argc != 4)
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return CMD_RET_USAGE;
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m_addr = hextoul(argv[2], NULL);
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m_size = dectoul(argv[3], NULL);
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m_ptr = map_physmem(m_addr, m_size, MAP_NOCACHE);
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if (!m_ptr)
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return -ENOMEM;
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dgst_ptr = malloc_cache_aligned(FSL_CAAM_MP_MES_DGST_BYTES);
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if (!dgst_ptr) {
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ret = -ENOMEM;
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goto free_m;
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}
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c_ptr = malloc_cache_aligned(FSL_CAAM_MP_PRVK_BYTES);
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if (!c_ptr) {
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ret = -ENOMEM;
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goto free_dgst;
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}
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d_ptr = malloc_cache_aligned(FSL_CAAM_MP_PRVK_BYTES);
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if (!d_ptr) {
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ret = -ENOMEM;
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goto free_c;
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}
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ret = sign_mppubk(m_ptr, m_size, dgst_ptr, c_ptr, d_ptr);
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if (ret)
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goto free_d;
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/* Output results */
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puts("Message: ");
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for (i = 0; i < m_size; i++)
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printf("%02X ", (m_ptr)[i]);
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puts("\n");
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puts("Message Representative Digest(SHA-256):\n");
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for (i = 0; i < FSL_CAAM_MP_MES_DGST_BYTES; i++)
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printf("%02X", (dgst_ptr)[i]);
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puts("\n");
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puts("Signature:\n");
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puts("C:\n");
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for (i = 0; i < FSL_CAAM_MP_PRVK_BYTES; i++)
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printf("%02X", (c_ptr)[i]);
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puts("\n");
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puts("d:\n");
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for (i = 0; i < FSL_CAAM_MP_PRVK_BYTES; i++)
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printf("%02X", (d_ptr)[i]);
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puts("\n");
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free_d:
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free(d_ptr);
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free_c:
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free(c_ptr);
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free_dgst:
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free(dgst_ptr);
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free_m:
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unmap_sysmem(m_ptr);
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} else {
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return CMD_RET_USAGE;
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}
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return ret;
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}
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/***************************************************/
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static char mfgprot_help_text[] =
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"Usage:\n"
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"Print the public key for Manufacturing Protection\n"
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"\tmfgprot pubk\n"
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"Generates a Manufacturing Protection signature\n"
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"\tmfgprot sign <data_addr> <size>";
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U_BOOT_CMD(
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mfgprot, 4, 1, do_mfgprot,
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"Manufacturing Protection\n",
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mfgprot_help_text
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);
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