feat(st-crypto): update HASH for new hardware version used in STM32MP13
Introduce new flag to manage hardware version.
STM32MP15 currently uses the HASH_V2 and STM32MP13 uses the HASH_V4.
For STM32_HASH_V4: remove MD5 algorithm (no more supported) and
add SHA384 and SHA512.
For STM32_HASH_V2: no change.
Change-Id: I3a9ae9e38249a2421c657232cb0877004d04dae1
Signed-off-by: Nicolas Toromanoff <nicolas.toromanoff@st.com>
Signed-off-by: Lionel Debieve <lionel.debieve@foss.st.com>
diff --git a/drivers/st/crypto/stm32_hash.c b/drivers/st/crypto/stm32_hash.c
index 6a1d476..70f3272 100644
--- a/drivers/st/crypto/stm32_hash.c
+++ b/drivers/st/crypto/stm32_hash.c
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2019-2021, STMicroelectronics - All Rights Reserved
+ * Copyright (c) 2019-2022, STMicroelectronics - All Rights Reserved
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@@ -8,10 +8,6 @@
#include <errno.h>
#include <stdint.h>
-#include <libfdt.h>
-
-#include <platform_def.h>
-
#include <arch_helpers.h>
#include <common/debug.h>
#include <drivers/clk.h>
@@ -20,9 +16,17 @@
#include <drivers/st/stm32mp_reset.h>
#include <lib/mmio.h>
#include <lib/utils.h>
+#include <libfdt.h>
#include <plat/common/platform.h>
+#include <platform_def.h>
+
+#if STM32_HASH_VER == 2
#define DT_HASH_COMPAT "st,stm32f756-hash"
+#endif
+#if STM32_HASH_VER == 4
+#define DT_HASH_COMPAT "st,stm32mp13-hash"
+#endif
#define HASH_CR 0x00U
#define HASH_DIN 0x04U
@@ -33,11 +37,22 @@
/* Control Register */
#define HASH_CR_INIT BIT(2)
#define HASH_CR_DATATYPE_SHIFT U(4)
-
+#if STM32_HASH_VER == 2
#define HASH_CR_ALGO_SHA1 0x0U
#define HASH_CR_ALGO_MD5 BIT(7)
#define HASH_CR_ALGO_SHA224 BIT(18)
#define HASH_CR_ALGO_SHA256 (BIT(18) | BIT(7))
+#endif
+#if STM32_HASH_VER == 4
+#define HASH_CR_ALGO_SHIFT U(17)
+#define HASH_CR_ALGO_SHA1 (0x0U << HASH_CR_ALGO_SHIFT)
+#define HASH_CR_ALGO_SHA224 (0x2U << HASH_CR_ALGO_SHIFT)
+#define HASH_CR_ALGO_SHA256 (0x3U << HASH_CR_ALGO_SHIFT)
+#define HASH_CR_ALGO_SHA384 (0xCU << HASH_CR_ALGO_SHIFT)
+#define HASH_CR_ALGO_SHA512_224 (0xDU << HASH_CR_ALGO_SHIFT)
+#define HASH_CR_ALGO_SHA512_256 (0xEU << HASH_CR_ALGO_SHIFT)
+#define HASH_CR_ALGO_SHA512 (0xFU << HASH_CR_ALGO_SHIFT)
+#endif
/* Status Flags */
#define HASH_SR_DCIS BIT(1)
@@ -51,6 +66,10 @@
#define SHA1_DIGEST_SIZE 20U
#define SHA224_DIGEST_SIZE 28U
#define SHA256_DIGEST_SIZE 32U
+#define SHA384_DIGEST_SIZE 48U
+#define SHA512_224_DIGEST_SIZE 28U
+#define SHA512_256_DIGEST_SIZE 32U
+#define SHA512_DIGEST_SIZE 64U
#define RESET_TIMEOUT_US_1MS 1000U
#define HASH_TIMEOUT_US 10000U
@@ -131,10 +150,12 @@
reg = HASH_CR_INIT | (HASH_DATA_8_BITS << HASH_CR_DATATYPE_SHIFT);
switch (mode) {
+#if STM32_HASH_VER == 2
case HASH_MD5SUM:
reg |= HASH_CR_ALGO_MD5;
stm32_hash.digest_size = MD5_DIGEST_SIZE;
break;
+#endif
case HASH_SHA1:
reg |= HASH_CR_ALGO_SHA1;
stm32_hash.digest_size = SHA1_DIGEST_SIZE;
@@ -143,6 +164,16 @@
reg |= HASH_CR_ALGO_SHA224;
stm32_hash.digest_size = SHA224_DIGEST_SIZE;
break;
+#if STM32_HASH_VER == 4
+ case HASH_SHA384:
+ reg |= HASH_CR_ALGO_SHA384;
+ stm32_hash.digest_size = SHA384_DIGEST_SIZE;
+ break;
+ case HASH_SHA512:
+ reg |= HASH_CR_ALGO_SHA512;
+ stm32_hash.digest_size = SHA512_DIGEST_SIZE;
+ break;
+#endif
/* Default selected algo is SHA256 */
case HASH_SHA256:
default: