From af1a266670d040d2f4083ff309d732d648afba2a Mon Sep 17 00:00:00 2001
From: Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com>
Date: Tue, 10 Oct 2023 14:33:42 +0000
Subject: Add submodule dependency files
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
---
roms/u-boot/drivers/crypto/fsl/fsl_blob.c | 203 ++++++++++++++++++++++++++++++
1 file changed, 203 insertions(+)
create mode 100644 roms/u-boot/drivers/crypto/fsl/fsl_blob.c
(limited to 'roms/u-boot/drivers/crypto/fsl/fsl_blob.c')
diff --git a/roms/u-boot/drivers/crypto/fsl/fsl_blob.c b/roms/u-boot/drivers/crypto/fsl/fsl_blob.c
new file mode 100644
index 000000000..e8202cc56
--- /dev/null
+++ b/roms/u-boot/drivers/crypto/fsl/fsl_blob.c
@@ -0,0 +1,203 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2014 Freescale Semiconductor, Inc.
+ *
+ */
+
+#include <common.h>
+#include <cpu_func.h>
+#include <log.h>
+#include <malloc.h>
+#include <memalign.h>
+#include <fsl_sec.h>
+#include <asm/cache.h>
+#include <linux/errno.h>
+#include "jobdesc.h"
+#include "desc.h"
+#include "jr.h"
+
+/**
+ * blob_decap() - Decapsulate the data from a blob
+ * @key_mod: - Key modifier address
+ * @src: - Source address (blob)
+ * @dst: - Destination address (data)
+ * @len: - Size of decapsulated data
+ *
+ * Note: Start and end of the key_mod, src and dst buffers have to be aligned to
+ * the cache line size (ARCH_DMA_MINALIGN) for the CAAM operation to succeed.
+ *
+ * Returns zero on success, negative on error.
+ */
+int blob_decap(u8 *key_mod, u8 *src, u8 *dst, u32 len)
+{
+ int ret, size, i = 0;
+ u32 *desc;
+
+ if (!IS_ALIGNED((uintptr_t)key_mod, ARCH_DMA_MINALIGN) ||
+ !IS_ALIGNED((uintptr_t)src, ARCH_DMA_MINALIGN) ||
+ !IS_ALIGNED((uintptr_t)dst, ARCH_DMA_MINALIGN)) {
+ puts("Error: blob_decap: Address arguments are not aligned!\n");
+ return -EINVAL;
+ }
+
+ printf("\nDecapsulating blob to get data\n");
+ desc = malloc_cache_aligned(sizeof(int) * MAX_CAAM_DESCSIZE);
+ if (!desc) {
+ debug("Not enough memory for descriptor allocation\n");
+ return -ENOMEM;
+ }
+
+ size = ALIGN(16, ARCH_DMA_MINALIGN);
+ flush_dcache_range((unsigned long)key_mod,
+ (unsigned long)key_mod + size);
+
+ size = ALIGN(BLOB_SIZE(len), ARCH_DMA_MINALIGN);
+ flush_dcache_range((unsigned long)src,
+ (unsigned long)src + size);
+
+ inline_cnstr_jobdesc_blob_decap(desc, key_mod, src, dst, len);
+
+ debug("Descriptor dump:\n");
+ for (i = 0; i < 14; i++)
+ debug("Word[%d]: %08x\n", i, *(desc + i));
+
+ size = ALIGN(sizeof(int) * MAX_CAAM_DESCSIZE, ARCH_DMA_MINALIGN);
+ flush_dcache_range((unsigned long)desc,
+ (unsigned long)desc + size);
+
+ flush_dcache_range((unsigned long)dst,
+ (unsigned long)dst + size);
+
+ ret = run_descriptor_jr(desc);
+
+ if (ret) {
+ printf("Error in blob decapsulation: %d\n", ret);
+ } else {
+ size = ALIGN(len, ARCH_DMA_MINALIGN);
+ invalidate_dcache_range((unsigned long)dst,
+ (unsigned long)dst + size);
+
+ puts("Blob decapsulation successful.\n");
+ }
+
+ free(desc);
+ return ret;
+}
+
+/**
+ * blob_encap() - Encapsulate the data as a blob
+ * @key_mod: - Key modifier address
+ * @src: - Source address (data)
+ * @dst: - Destination address (blob)
+ * @len: - Size of data to be encapsulated
+ *
+ * Note: Start and end of the key_mod, src and dst buffers have to be aligned to
+ * the cache line size (ARCH_DMA_MINALIGN) for the CAAM operation to succeed.
+ *
+ * Returns zero on success, negative on error.
+ */
+int blob_encap(u8 *key_mod, u8 *src, u8 *dst, u32 len)
+{
+ int ret, size, i = 0;
+ u32 *desc;
+
+ if (!IS_ALIGNED((uintptr_t)key_mod, ARCH_DMA_MINALIGN) ||
+ !IS_ALIGNED((uintptr_t)src, ARCH_DMA_MINALIGN) ||
+ !IS_ALIGNED((uintptr_t)dst, ARCH_DMA_MINALIGN)) {
+ puts("Error: blob_encap: Address arguments are not aligned!\n");
+ return -EINVAL;
+ }
+
+ printf("\nEncapsulating data to form blob\n");
+ desc = malloc_cache_aligned(sizeof(int) * MAX_CAAM_DESCSIZE);
+ if (!desc) {
+ debug("Not enough memory for descriptor allocation\n");
+ return -ENOMEM;
+ }
+
+ size = ALIGN(16, ARCH_DMA_MINALIGN);
+ flush_dcache_range((unsigned long)key_mod,
+ (unsigned long)key_mod + size);
+
+ size = ALIGN(len, ARCH_DMA_MINALIGN);
+ flush_dcache_range((unsigned long)src,
+ (unsigned long)src + size);
+
+ inline_cnstr_jobdesc_blob_encap(desc, key_mod, src, dst, len);
+
+ debug("Descriptor dump:\n");
+ for (i = 0; i < 14; i++)
+ debug("Word[%d]: %08x\n", i, *(desc + i));
+
+ size = ALIGN(sizeof(int) * MAX_CAAM_DESCSIZE, ARCH_DMA_MINALIGN);
+ flush_dcache_range((unsigned long)desc,
+ (unsigned long)desc + size);
+
+ flush_dcache_range((unsigned long)dst,
+ (unsigned long)dst + size);
+
+ ret = run_descriptor_jr(desc);
+
+ if (ret) {
+ printf("Error in blob encapsulation: %d\n", ret);
+ } else {
+ size = ALIGN(BLOB_SIZE(len), ARCH_DMA_MINALIGN);
+ invalidate_dcache_range((unsigned long)dst,
+ (unsigned long)dst + size);
+
+ puts("Blob encapsulation successful.\n");
+ }
+
+ free(desc);
+ return ret;
+}
+
+#ifdef CONFIG_CMD_DEKBLOB
+int blob_dek(const u8 *src, u8 *dst, u8 len)
+{
+ int ret, size, i = 0;
+ u32 *desc;
+
+ int out_sz = WRP_HDR_SIZE + len + KEY_BLOB_SIZE + MAC_SIZE;
+
+ puts("\nEncapsulating provided DEK to form blob\n");
+ desc = memalign(ARCH_DMA_MINALIGN,
+ sizeof(uint32_t) * DEK_BLOB_DESCSIZE);
+ if (!desc) {
+ debug("Not enough memory for descriptor allocation\n");
+ return -ENOMEM;
+ }
+
+ ret = inline_cnstr_jobdesc_blob_dek(desc, src, dst, len);
+ if (ret) {
+ debug("Error in Job Descriptor Construction: %d\n", ret);
+ } else {
+ size = roundup(sizeof(uint32_t) * DEK_BLOB_DESCSIZE,
+ ARCH_DMA_MINALIGN);
+ flush_dcache_range((unsigned long)desc,
+ (unsigned long)desc + size);
+ size = roundup(sizeof(uint8_t) * out_sz, ARCH_DMA_MINALIGN);
+ flush_dcache_range((unsigned long)dst,
+ (unsigned long)dst + size);
+
+ ret = run_descriptor_jr(desc);
+ }
+
+ if (ret) {
+ debug("Error in Encapsulation %d\n", ret);
+ goto err;
+ }
+
+ size = roundup(out_sz, ARCH_DMA_MINALIGN);
+ invalidate_dcache_range((unsigned long)dst, (unsigned long)dst+size);
+
+ puts("DEK Blob\n");
+ for (i = 0; i < out_sz; i++)
+ printf("%02X", ((uint8_t *)dst)[i]);
+ printf("\n");
+
+err:
+ free(desc);
+ return ret;
+}
+#endif
--
cgit