// SPDX-License-Identifier: GPL-2.0+
/*
- * Copyright (c) 2022 Nuvoton Technology Corp.
+ * Copyright (c) 2024 Nuvoton Technology Corp.
*/
#include <dm.h>
#include <hash.h>
#include <malloc.h>
-#include <uboot_aes.h>
#include <asm/io.h>
+#include <linux/iopoll.h>
-#define HASH_DIG_H_NUM 8
+#define SHA512_BLOCK_LENGTH (1024 / 8)
+/* Register fields */
#define HASH_CTR_STS_SHA_EN BIT(0)
#define HASH_CTR_STS_SHA_BUSY BIT(1)
#define HASH_CTR_STS_SHA_RST BIT(2)
#define HASH_CFG_SHA1_SHA2 BIT(0)
-
-/* SHA type */
-enum npcm_sha_type {
- npcm_sha_type_sha2 = 0,
- npcm_sha_type_sha1,
- npcm_sha_type_num
+#define SHA512_CMD_SHA_512 BIT(3)
+#define SHA512_CMD_INTERNAL_ROUND BIT(2)
+#define SHA512_CMD_WRITE BIT(1)
+#define SHA512_CMD_READ BIT(0)
+
+enum {
+ type_sha1 = 0,
+ type_sha256,
+ type_sha384,
+ type_sha512,
};
struct npcm_sha_regs {
- unsigned int hash_data_in;
- unsigned char hash_ctr_sts;
- unsigned char reserved_0[0x03];
- unsigned char hash_cfg;
- unsigned char reserved_1[0x03];
- unsigned char hash_ver;
- unsigned char reserved_2[0x13];
- unsigned int hash_dig[HASH_DIG_H_NUM];
+ u8 data_in;
+ u8 data_out;
+ u8 ctr_sts;
+ u8 hash_cfg;
+ u8 sha512_cmd;
};
-struct npcm_sha_priv {
- struct npcm_sha_regs *regs;
+struct hash_info {
+ u32 block_sz;
+ u32 digest_len;
+ u8 length_bytes;
+ u8 type;
};
-static struct npcm_sha_priv *sha_priv;
+struct message_block {
+ u64 length[2];
+ u64 nonhash_sz;
+ u8 buffer[SHA512_BLOCK_LENGTH * 2];
+};
-#ifdef SHA_DEBUG_MODULE
-#define sha_print(fmt, args...) printf(fmt, ##args)
-#else
-#define sha_print(fmt, args...) (void)0
-#endif
-
-#define SHA_BLOCK_LENGTH (512 / 8)
-#define SHA_2_HASH_LENGTH (256 / 8)
-#define SHA_1_HASH_LENGTH (160 / 8)
-#define SHA_HASH_LENGTH(type) ((type == npcm_sha_type_sha2) ? \
- (SHA_2_HASH_LENGTH) : (SHA_1_HASH_LENGTH))
-
-#define SHA_SECRUN_BUFF_SIZE 64
-#define SHA_TIMEOUT 100
-#define SHA_DATA_LAST_BYTE 0x80
-
-#define SHA2_NUM_OF_SELF_TESTS 3
-#define SHA1_NUM_OF_SELF_TESTS 4
-
-#define NUVOTON_ALIGNMENT 4
-
-/*-----------------------------------------------------------------------------*/
-/* SHA instance struct handler */
-/*-----------------------------------------------------------------------------*/
-struct SHA_HANDLE_T {
- u32 hv[SHA_2_HASH_LENGTH / sizeof(u32)];
- u32 length0;
- u32 length1;
- u32 block[SHA_BLOCK_LENGTH / sizeof(u32)];
- u8 type;
- bool active;
+struct npcm_sha_priv {
+ void *base;
+ struct npcm_sha_regs *regs;
+ struct hash_info *hash;
+ struct message_block block;
+ bool internal_round;
+ bool support_sha512;
};
-// The # of bytes currently in the sha block buffer
-#define SHA_BUFF_POS(length) ((length) & (SHA_BLOCK_LENGTH - 1))
-
-// The # of free bytes in the sha block buffer
-#define SHA_BUFF_FREE(length) (SHA_BLOCK_LENGTH - SHA_BUFF_POS(length))
-
-static void SHA_FlushLocalBuffer_l(const u32 *buff);
-static int SHA_BusyWait_l(void);
-static void SHA_GetShaDigest_l(u8 *hashdigest, u8 type);
-static void SHA_SetShaDigest_l(const u32 *hashdigest, u8 type);
-static void SHA_SetBlock_l(const u8 *data, u32 len, u16 position, u32 *block);
-static void SHA_ClearBlock_l(u16 len, u16 position, u32 *block);
-static void SHA_SetLength32_l(struct SHA_HANDLE_T *handleptr, u32 *block);
-
-static int SHA_Init(struct SHA_HANDLE_T *handleptr);
-static int SHA_Start(struct SHA_HANDLE_T *handleptr, u8 type);
-static int SHA_Update(struct SHA_HANDLE_T *handleptr, const u8 *buffer, u32 len);
-static int SHA_Finish(struct SHA_HANDLE_T *handleptr, u8 *hashdigest);
-static int SHA_Reset(void);
-static int SHA_Power(bool on);
-#ifdef SHA_PRINT
-static void SHA_PrintRegs(void);
-static void SHA_PrintVersion(void);
-#endif
-
-static struct SHA_HANDLE_T sha_handle;
-
-/*----------------------------------------------------------------------------*/
-/* Checks if give function returns int error, and returns the error */
-/* immediately after SHA disabling */
-/*----------------------------------------------------------------------------*/
-int npcm_sha_check(int status)
-{
- if (status != 0) {
- SHA_Power(false);
- return status;
- }
- return 0;
-}
+static struct npcm_sha_regs npcm_sha_reg_tbl[] = {
+ { .data_in = 0x0, .data_out = 0x20, .ctr_sts = 0x4, .hash_cfg = 0x8 },
+ { .data_in = 0x10, .data_out = 0x1c, .ctr_sts = 0x14, .sha512_cmd = 0x18 },
+};
-/*----------------------------------------------------------------------------*/
-/* Function: npcm_sha_calc */
-/* */
-/* Parameters: type - SHA module type */
-/* inBuff - Pointer to a buffer containing the data to */
-/* be hashed */
-/* len - Length of the data to hash */
-/* hashDigest - Pointer to a buffer where the reseulting */
-/* digest will be copied to */
-/* */
-/* Returns: 0 on success or other int error code on error */
-/* Side effects: */
-/* Description: */
-/* This routine performs complete SHA calculation in one */
-/* step */
-/*----------------------------------------------------------------------------*/
-int npcm_sha_calc(u8 type, const u8 *inbuff, u32 len, u8 *hashdigest)
-{
- int status;
- struct SHA_HANDLE_T handle;
-
- SHA_Init(&handle);
- SHA_Power(true);
- SHA_Reset();
- SHA_Start(&handle, type);
- status = SHA_Update(&handle, inbuff, len);
- npcm_sha_check(status);
- status = SHA_Finish(&handle, hashdigest);
- npcm_sha_check(status);
- SHA_Power(false);
+static struct hash_info npcm_hash_tbl[] = {
+ { .type = type_sha1, .block_sz = 64, .digest_len = 160, .length_bytes = 8 },
+ { .type = type_sha256, .block_sz = 64, .digest_len = 256, .length_bytes = 8 },
+ { .type = type_sha384, .block_sz = 128, .digest_len = 384, .length_bytes = 16 },
+ { .type = type_sha512, .block_sz = 128, .digest_len = 512, .length_bytes = 16 },
+};
- return 0;
-}
+static struct npcm_sha_priv *sha_priv;
-/*
- * Computes hash value of input pbuf using h/w acceleration
- *
- * @param in_addr A pointer to the input buffer
- * @param bufleni Byte length of input buffer
- * @param out_addr A pointer to the output buffer. When complete
- * 32 bytes are copied to pout[0]...pout[31]. Thus, a user
- * should allocate at least 32 bytes at pOut in advance.
- * @param chunk_size chunk size for sha256
- */
-void hw_sha256(const uchar *in_addr, uint buflen, uchar *out_addr, uint chunk_size)
+static int npcm_sha_init(u8 type)
{
- puts("\nhw_sha256 using BMC HW accelerator\t");
- npcm_sha_calc(npcm_sha_type_sha2, (u8 *)in_addr, buflen, (u8 *)out_addr);
-}
+ struct message_block *block = &sha_priv->block;
-/*
- * Computes hash value of input pbuf using h/w acceleration
- *
- * @param in_addr A pointer to the input buffer
- * @param bufleni Byte length of input buffer
- * @param out_addr A pointer to the output buffer. When complete
- * 32 bytes are copied to pout[0]...pout[31]. Thus, a user
- * should allocate at least 32 bytes at pOut in advance.
- * @param chunk_size chunk_size for sha1
- */
-void hw_sha1(const uchar *in_addr, uint buflen, uchar *out_addr, uint chunk_size)
-{
- puts("\nhw_sha1 using BMC HW accelerator\t");
- npcm_sha_calc(npcm_sha_type_sha1, (u8 *)in_addr, buflen, (u8 *)out_addr);
-}
+ if (type > type_sha512 ||
+ (!sha_priv->support_sha512 &&
+ (type == type_sha384 || type == type_sha512)))
+ return -ENOTSUPP;
-/*
- * Create the context for sha progressive hashing using h/w acceleration
- *
- * @algo: Pointer to the hash_algo struct
- * @ctxp: Pointer to the pointer of the context for hashing
- * @return 0 if ok, -ve on error
- */
-int hw_sha_init(struct hash_algo *algo, void **ctxp)
-{
- const char *algo_name1 = "sha1";
- const char *algo_name2 = "sha256";
-
- SHA_Init(&sha_handle);
- SHA_Power(true);
- SHA_Reset();
- if (!strcmp(algo_name1, algo->name))
- return SHA_Start(&sha_handle, npcm_sha_type_sha1);
- else if (!strcmp(algo_name2, algo->name))
- return SHA_Start(&sha_handle, npcm_sha_type_sha2);
- else
- return -EPROTO;
-}
+ sha_priv->regs = &npcm_sha_reg_tbl[type / 2];
+ sha_priv->hash = &npcm_hash_tbl[type];
+ block->length[0] = 0;
+ block->length[1] = 0;
+ block->nonhash_sz = 0;
+ sha_priv->internal_round = false;
-/*
- * Update buffer for sha progressive hashing using h/w acceleration
- *
- * The context is freed by this function if an error occurs.
- *
- * @algo: Pointer to the hash_algo struct
- * @ctx: Pointer to the context for hashing
- * @buf: Pointer to the buffer being hashed
- * @size: Size of the buffer being hashed
- * @is_last: 1 if this is the last update; 0 otherwise
- * @return 0 if ok, -ve on error
- */
-int hw_sha_update(struct hash_algo *algo, void *ctx, const void *buf,
- unsigned int size, int is_last)
-{
- return SHA_Update(&sha_handle, buf, size);
+ return 0;
}
-/*
- * Copy sha hash result at destination location
- *
- * The context is freed after completion of hash operation or after an error.
- *
- * @algo: Pointer to the hash_algo struct
- * @ctx: Pointer to the context for hashing
- * @dest_buf: Pointer to the destination buffer where hash is to be copied
- * @size: Size of the buffer being hashed
- * @return 0 if ok, -ve on error
- */
-int hw_sha_finish(struct hash_algo *algo, void *ctx, void *dest_buf, int size)
+static void npcm_sha_reset(void)
{
- int status;
-
- status = SHA_Finish(&sha_handle, dest_buf);
- npcm_sha_check(status);
- return SHA_Power(false);
+ struct npcm_sha_regs *regs = sha_priv->regs;
+ struct hash_info *hash = sha_priv->hash;
+ u8 val;
+
+ if (hash->type == type_sha1)
+ writeb(HASH_CFG_SHA1_SHA2, sha_priv->base + regs->hash_cfg);
+ else if (hash->type == type_sha256)
+ writeb(0, sha_priv->base + regs->hash_cfg);
+ else if (hash->type == type_sha384)
+ writeb(0, sha_priv->base + regs->sha512_cmd);
+ else if (hash->type == type_sha512)
+ writeb(SHA512_CMD_SHA_512, sha_priv->base + regs->sha512_cmd);
+
+ val = readb(sha_priv->base + regs->ctr_sts) & ~HASH_CTR_STS_SHA_EN;
+ writeb(val | HASH_CTR_STS_SHA_RST, sha_priv->base + regs->ctr_sts);
}
-/*----------------------------------------------------------------------------*/
-/* Function: SHA_Init */
-/* */
-/* Parameters: handlePtr - SHA processing handle pointer */
-/* Returns: 0 on success or other int error code on error. */
-/* Side effects: */
-/* Description: */
-/* This routine initialize the SHA module */
-/*----------------------------------------------------------------------------*/
-static int SHA_Init(struct SHA_HANDLE_T *handleptr)
+static void npcm_sha_enable(bool on)
{
- handleptr->active = false;
+ struct npcm_sha_regs *regs = sha_priv->regs;
+ u8 val;
- return 0;
+ val = readb(sha_priv->base + regs->ctr_sts) & ~HASH_CTR_STS_SHA_EN;
+ val |= on;
+ writeb(val | on, sha_priv->base + regs->ctr_sts);
}
-/*----------------------------------------------------------------------------*/
-/* Function: SHA_Start */
-/* */
-/* Parameters: handlePtr - SHA processing handle pointer */
-/* type - SHA module type */
-/* */
-/* Returns: 0 on success or other int error code on error. */
-/* Side effects: */
-/* Description: */
-/* This routine start a single SHA process */
-/*----------------------------------------------------------------------------*/
-static int SHA_Start(struct SHA_HANDLE_T *handleptr, u8 type)
+static int npcm_sha_flush_block(u8 *block)
{
struct npcm_sha_regs *regs = sha_priv->regs;
+ struct hash_info *hash = sha_priv->hash;
+ u32 *blk_dw = (u32 *)block;
+ u8 val;
+ int i;
+
+ if (readb_poll_timeout(sha_priv->base + regs->ctr_sts, val,
+ !(val & HASH_CTR_STS_SHA_BUSY), 100))
+ return -ETIMEDOUT;
+
+ if (hash->type == type_sha384 || hash->type == type_sha512) {
+ val = SHA512_CMD_WRITE;
+ if (hash->type == type_sha512)
+ val |= SHA512_CMD_SHA_512;
+ if (sha_priv->internal_round)
+ val |= SHA512_CMD_INTERNAL_ROUND;
+ writeb(val, sha_priv->base + regs->sha512_cmd);
+ }
+ for (i = 0; i < (hash->block_sz / sizeof(u32)); i++)
+ writel(blk_dw[i], sha_priv->base + regs->data_in);
- // Initialize handle
- handleptr->length0 = 0;
- handleptr->length1 = 0;
- handleptr->type = type;
- handleptr->active = true;
-
- // Set SHA type
- writeb(handleptr->type & HASH_CFG_SHA1_SHA2, ®s->hash_cfg);
-
- // Reset SHA hardware
- SHA_Reset();
-
- /* The handlePtr->hv is initialized with the correct IV as the SHA engine
- * automatically fill the HASH_DIG_Hn registers according to SHA spec
- * (following SHA_RST assertion)
- */
- SHA_GetShaDigest_l((u8 *)handleptr->hv, type);
-
- // Init block with zeros
- memset(handleptr->block, 0, sizeof(handleptr->block));
+ sha_priv->internal_round = true;
return 0;
}
-/*----------------------------------------------------------------------------*/
-/* Function: SHA_Update */
-/* */
-/* Parameters: handlePtr - SHA processing handle pointer */
-/* buffer - Pointer to the data that will be added to */
-/* the hash calculation */
-/* len - Length of data to add to SHA calculation */
-/* */
-/* */
-/* Returns: 0 on success or other int error code on error */
-/* Side effects: */
-/* Description: */
-/* This routine adds data to previously started SHA */
-/* calculation */
-/*----------------------------------------------------------------------------*/
-static int SHA_Update(struct SHA_HANDLE_T *handleptr, const u8 *buffer, u32 len)
+static int npcm_sha_update_block(const u8 *in, u32 len)
{
- struct npcm_sha_regs *regs = sha_priv->regs;
- u32 localbuffer[SHA_SECRUN_BUFF_SIZE / sizeof(u32)];
- u32 bufferlen = len;
- u16 pos = 0;
- u8 *blockptr;
- int status;
-
- // Error check
- if (!handleptr->active)
- return -EPROTO;
-
- // Wait till SHA is not busy
- status = SHA_BusyWait_l();
- npcm_sha_check(status);
-
- // Set SHA type
- writeb(handleptr->type & HASH_CFG_SHA1_SHA2, ®s->hash_cfg);
-
- // Write SHA latest digest into SHA module
- SHA_SetShaDigest_l(handleptr->hv, handleptr->type);
-
- // Set number of unhashed bytes which remained from last update
- pos = SHA_BUFF_POS(handleptr->length0);
-
- // Copy unhashed bytes which remained from last update to secrun buffer
- SHA_SetBlock_l((u8 *)handleptr->block, pos, 0, localbuffer);
-
- while (len) {
- // Wait for the hardware to be available (in case we are hashing)
- status = SHA_BusyWait_l();
- npcm_sha_check(status);
-
- // Move as much bytes as we can into the secrun buffer
- bufferlen = min(len, SHA_BUFF_FREE(handleptr->length0));
-
- // Copy current given buffer to the secrun buffer
- SHA_SetBlock_l((u8 *)buffer, bufferlen, pos, localbuffer);
-
- // Update size of hashed bytes
- handleptr->length0 += bufferlen;
-
- if (handleptr->length0 < bufferlen)
- handleptr->length1++;
-
- // Update length of data left to digest
- len -= bufferlen;
-
- // Update given buffer pointer
- buffer += bufferlen;
-
- // If secrun buffer is full
- if (SHA_BUFF_POS(handleptr->length0) == 0) {
- /* We just filled up the buffer perfectly, so let it hash (we'll
- * unload the hash only when we are done with all hashing)
- */
- SHA_FlushLocalBuffer_l(localbuffer);
-
- pos = 0;
- bufferlen = 0;
- }
+ struct message_block *block = &sha_priv->block;
+ struct hash_info *hash = sha_priv->hash;
+ u8 *buffer = &block->buffer[0];
+ u32 block_sz = hash->block_sz;
+ u32 hash_sz;
+
+ hash_sz = (block->nonhash_sz + len) > block_sz ?
+ (block_sz - block->nonhash_sz) : len;
+ memcpy(buffer + block->nonhash_sz, in, hash_sz);
+ block->nonhash_sz += hash_sz;
+ block->length[0] += hash_sz;
+ if (block->length[0] < hash_sz)
+ block->length[1]++;
+
+ if (block->nonhash_sz == block_sz) {
+ block->nonhash_sz = 0;
+ if (npcm_sha_flush_block(buffer))
+ return -EBUSY;
}
- // Wait till SHA is not busy
- status = SHA_BusyWait_l();
- npcm_sha_check(status);
-
- /* Copy unhashed bytes from given buffer to handle block for next update/finish */
- blockptr = (u8 *)handleptr->block;
- while (bufferlen)
- blockptr[--bufferlen + pos] = *(--buffer);
-
- // Save SHA current digest
- SHA_GetShaDigest_l((u8 *)handleptr->hv, handleptr->type);
-
- return 0;
+ return hash_sz;
}
-/*----------------------------------------------------------------------------*/
-/* Function: SHA_Finish */
-/* */
-/* Parameters: handlePtr - SHA processing handle pointer */
-/* hashDigest - Pointer to a buffer where the final digest */
-/* will be copied to */
-/* */
-/* Returns: 0 on success or other int error code on error */
-/* Side effects: */
-/* Description: */
-/* This routine finish SHA calculation and get */
-/* the resulting SHA digest */
-/*----------------------------------------------------------------------------*/
-static int SHA_Finish(struct SHA_HANDLE_T *handleptr, u8 *hashdigest)
+static int npcm_sha_update(const u8 *input, u32 len)
{
- struct npcm_sha_regs *regs = sha_priv->regs;
- u32 localbuffer[SHA_SECRUN_BUFF_SIZE / sizeof(u32)];
- const u8 lastbyte = SHA_DATA_LAST_BYTE;
- u16 pos;
- int status;
-
- // Error check
- if (!handleptr->active)
- return -EPROTO;
-
- // Set SHA type
- writeb(handleptr->type & HASH_CFG_SHA1_SHA2, ®s->hash_cfg);
-
- // Wait till SHA is not busy
- status = SHA_BusyWait_l();
- npcm_sha_check(status);
-
- // Finish off the current buffer with the SHA spec'ed padding
- pos = SHA_BUFF_POS(handleptr->length0);
-
- // Init SHA digest
- SHA_SetShaDigest_l(handleptr->hv, handleptr->type);
-
- // Load data into secrun buffer
- SHA_SetBlock_l((u8 *)handleptr->block, pos, 0, localbuffer);
-
- // Set data last byte as in SHA algorithm spec
- SHA_SetBlock_l(&lastbyte, 1, pos++, localbuffer);
+ int hash_sz;
- // If the remainder of data is longer then one block
- if (pos > (SHA_BLOCK_LENGTH - 8)) {
- /* The length will be in the next block Pad the rest of the last block with 0's */
- SHA_ClearBlock_l((SHA_BLOCK_LENGTH - pos), pos, localbuffer);
-
- // Hash the current block
- SHA_FlushLocalBuffer_l(localbuffer);
-
- pos = 0;
-
- // Wait till SHA is not busy
- status = SHA_BusyWait_l();
- npcm_sha_check(status);
+ while (len) {
+ hash_sz = npcm_sha_update_block(input, len);
+ if (hash_sz < 0) {
+ printf("SHA512 module busy\n");
+ return -EBUSY;
+ }
+ len -= hash_sz;
+ input += hash_sz;
}
- // Pad the rest of the last block with 0's except for the last 8-3 bytes
- SHA_ClearBlock_l((SHA_BLOCK_LENGTH - (8 - 3)) - pos, pos, localbuffer);
-
- /* The last 8-3 bytes are set to the bit-length of the message in big-endian form */
- SHA_SetLength32_l(handleptr, localbuffer);
-
- // Hash all that, and save the hash for the caller
- SHA_FlushLocalBuffer_l(localbuffer);
-
- // Wait till SHA is not busy
- status = SHA_BusyWait_l();
- npcm_sha_check(status);
-
- // Save SHA final digest into given buffer
- SHA_GetShaDigest_l(hashdigest, handleptr->type);
-
- // Free handle
- handleptr->active = false;
-
return 0;
}
-/*----------------------------------------------------------------------------*/
-/* Function: SHA_Reset */
-/* */
-/* Parameters: none */
-/* Returns: none */
-/* Side effects: */
-/* Description: */
-/* This routine reset SHA module */
-/*----------------------------------------------------------------------------*/
-static int SHA_Reset(void)
+static int npcm_sha_finish(u8 *out)
{
struct npcm_sha_regs *regs = sha_priv->regs;
-
- writel(readl(®s->hash_ctr_sts) | HASH_CTR_STS_SHA_RST, ®s->hash_ctr_sts);
+ struct message_block *block = &sha_priv->block;
+ struct hash_info *hash = sha_priv->hash;
+ u8 *buffer = &block->buffer[0];
+ u32 block_sz = hash->block_sz;
+ u32 *out32 = (u32 *)out;
+ u32 zero_len, val;
+ u64 *length;
+ u8 reg_data_out;
+ int i;
+
+ /* Padding, minimal padding size is last_byte+length_bytes */
+ if ((block_sz - block->nonhash_sz) >= (hash->length_bytes + 1))
+ zero_len = block_sz - block->nonhash_sz - (hash->length_bytes + 1);
+ else
+ zero_len = block_sz * 2 - block->nonhash_sz - (hash->length_bytes + 1);
+ /* Last byte */
+ buffer[block->nonhash_sz++] = 0x80;
+ /* Zero bits padding */
+ memset(&buffer[block->nonhash_sz], 0, zero_len);
+ block->nonhash_sz += zero_len;
+ /* Message length */
+ length = (u64 *)&buffer[block->nonhash_sz];
+ if (hash->length_bytes == 16) {
+ *length++ = cpu_to_be64(block->length[1] << 3 | block->length[0] >> 61);
+ block->nonhash_sz += 8;
+ }
+ *length = cpu_to_be64(block->length[0] << 3);
+ block->nonhash_sz += 8;
+ if (npcm_sha_flush_block(&block->buffer[0]))
+ return -ETIMEDOUT;
+
+ /* After padding, the last message may produce 2 blocks */
+ if (block->nonhash_sz > block_sz) {
+ if (npcm_sha_flush_block(&block->buffer[block_sz]))
+ return -ETIMEDOUT;
+ }
+ /* Read digest */
+ if (readb_poll_timeout(sha_priv->base + regs->ctr_sts, val,
+ !(val & HASH_CTR_STS_SHA_BUSY), 100))
+ return -ETIMEDOUT;
+ if (hash->type == type_sha384)
+ writeb(SHA512_CMD_READ, sha_priv->base + regs->sha512_cmd);
+ else if (hash->type == type_sha512)
+ writeb(SHA512_CMD_SHA_512 | SHA512_CMD_READ,
+ sha_priv->base + regs->sha512_cmd);
+
+ reg_data_out = regs->data_out;
+ for (i = 0; i < (hash->digest_len / 32); i++) {
+ *out32 = readl(sha_priv->base + reg_data_out);
+ out32++;
+ if (hash->type == type_sha1 || hash->type == type_sha256)
+ reg_data_out += 4;
+ }
return 0;
}
-/*----------------------------------------------------------------------------*/
-/* Function: SHA_Power */
-/* */
-/* Parameters: on - true enable the module, false disable the module */
-/* Returns: none */
-/* Side effects: */
-/* Description: */
-/* This routine set SHA module power on/off */
-/*----------------------------------------------------------------------------*/
-static int SHA_Power(bool on)
+int npcm_sha_calc(const u8 *input, u32 len, u8 *output, u8 type)
{
- struct npcm_sha_regs *regs = sha_priv->regs;
- u8 hash_sts;
-
- hash_sts = readb(®s->hash_ctr_sts) & ~HASH_CTR_STS_SHA_EN;
- writeb(hash_sts | (on & HASH_CTR_STS_SHA_EN), ®s->hash_ctr_sts);
+ if (npcm_sha_init(type))
+ return -ENOTSUPP;
+ npcm_sha_reset();
+ npcm_sha_enable(true);
+ npcm_sha_update(input, len);
+ npcm_sha_finish(output);
+ npcm_sha_enable(false);
return 0;
}
-#ifdef SHA_PRINT
-/*----------------------------------------------------------------------------*/
-/* Function: SHA_PrintRegs */
-/* */
-/* Parameters: none */
-/* Returns: none */
-/* Side effects: */
-/* Description: */
-/* This routine prints the module registers */
-/*----------------------------------------------------------------------------*/
-static void SHA_PrintRegs(void)
+void hw_sha512(const unsigned char *input, unsigned int len,
+ unsigned char *output, unsigned int chunk_sz)
{
-#ifdef SHA_DEBUG_MODULE
- struct npcm_sha_regs *regs = sha_priv->regs;
-#endif
- unsigned int i;
-
- sha_print("/*--------------*/\n");
- sha_print("/* SHA */\n");
- sha_print("/*--------------*/\n\n");
-
- sha_print("HASH_CTR_STS = 0x%02X\n", readb(®s->hash_ctr_sts));
- sha_print("HASH_CFG = 0x%02X\n", readb(®s->hash_cfg));
-
- for (i = 0; i < HASH_DIG_H_NUM; i++)
- sha_print("HASH_DIG_H%d = 0x%08X\n", i, readl(®s->hash_dig[i]));
-
- sha_print("HASH_VER = 0x%08X\n", readb(®s->hash_ver));
-
- sha_print("\n");
+ if (!sha_priv->support_sha512) {
+ puts(" HW accelerator not support\n");
+ return;
+ }
+ puts(" using BMC HW accelerator\n");
+ npcm_sha_calc(input, len, output, type_sha512);
}
-/*----------------------------------------------------------------------------*/
-/* Function: SHA_PrintVersion */
-/* */
-/* Parameters: none */
-/* Returns: none */
-/* Side effects: */
-/* Description: */
-/* This routine prints the module version */
-/*----------------------------------------------------------------------------*/
-static void SHA_PrintVersion(void)
-{
- struct npcm_sha_regs *regs = sha_priv->regs;
-
- printf("SHA MODULE VER = %d\n", readb(®s->hash_ver));
-}
-#endif
-
-/*----------------------------------------------------------------------------*/
-/* Function: npcm_sha_selftest */
-/* */
-/* Parameters: type - SHA module type */
-/* Returns: 0 on success or other int error code on error */
-/* Side effects: */
-/* Description: */
-/* This routine performs various tests on the SHA HW and SW */
-/*----------------------------------------------------------------------------*/
-int npcm_sha_selftest(u8 type)
+void hw_sha384(const unsigned char *input, unsigned int len,
+ unsigned char *output, unsigned int chunk_sz)
{
- int status;
- struct SHA_HANDLE_T handle;
- u8 hashdigest[max(SHA_1_HASH_LENGTH, SHA_2_HASH_LENGTH)];
- u16 i, j;
-
- /*------------------------------------------------------------------------*/
- /* SHA1 tests info */
- /*------------------------------------------------------------------------*/
-
- static const u8 sha1selftestbuff[SHA1_NUM_OF_SELF_TESTS][94] = {
- {"abc"},
- {"abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq"},
- {"0123456789012345678901234567890123456789012345678901234567890123"},
- {0x30, 0x5c, 0x30, 0x2c, 0x02, 0x01, 0x00, 0x30, 0x09, 0x06, 0x05, 0x2b,
- 0x0e, 0x03, 0x02, 0x1a, 0x05, 0x00, 0x30, 0x06, 0x06, 0x04, 0x67, 0x2a,
- 0x01, 0x0c, 0x04, 0x14, 0xe1, 0xb6, 0x93, 0xfe, 0x33, 0x43, 0xc1, 0x20,
- 0x5d, 0x4b, 0xaa, 0xb8, 0x63, 0xfb, 0xcf, 0x6c, 0x46, 0x1e, 0x88, 0x04,
- 0x30, 0x2c, 0x02, 0x01, 0x00, 0x30, 0x09, 0x06, 0x05, 0x2b, 0x0e, 0x03,
- 0x02, 0x1a, 0x05, 0x00, 0x30, 0x06, 0x06, 0x04, 0x67, 0x2a, 0x01, 0x0c,
- 0x04, 0x14, 0x13, 0xc1, 0x0c, 0xfc, 0xc8, 0x92, 0xd7, 0xde, 0x07, 0x1c,
- 0x40, 0xde, 0x4f, 0xcd, 0x07, 0x5b, 0x68, 0x20, 0x5a, 0x6c}
- };
-
- static const u8 sha1selftestbufflen[SHA1_NUM_OF_SELF_TESTS] = {
- 3, 56, 64, 94
- };
-
- static const u8 sha1selftestexpres[SHA1_NUM_OF_SELF_TESTS][SHA_1_HASH_LENGTH] = {
- {0xA9, 0x99, 0x3E, 0x36,
- 0x47, 0x06, 0x81, 0x6A,
- 0xBA, 0x3E, 0x25, 0x71,
- 0x78, 0x50, 0xC2, 0x6C,
- 0x9C, 0xD0, 0xD8, 0x9D},
- {0x84, 0x98, 0x3E, 0x44,
- 0x1C, 0x3B, 0xD2, 0x6E,
- 0xBA, 0xAE, 0x4A, 0xA1,
- 0xF9, 0x51, 0x29, 0xE5,
- 0xE5, 0x46, 0x70, 0xF1},
- {0xCF, 0x08, 0x00, 0xF7,
- 0x64, 0x4A, 0xCE, 0x3C,
- 0xB4, 0xC3, 0xFA, 0x33,
- 0x38, 0x8D, 0x3B, 0xA0,
- 0xEA, 0x3C, 0x8B, 0x6E},
- {0xc9, 0x84, 0x45, 0xc8,
- 0x64, 0x04, 0xb1, 0xe3,
- 0x3c, 0x6b, 0x0a, 0x8c,
- 0x8b, 0x80, 0x94, 0xfc,
- 0xf3, 0xc9, 0x98, 0xab}
- };
-
- /*------------------------------------------------------------------------*/
- /* SHA2 tests info */
- /*------------------------------------------------------------------------*/
-
- static const u8 sha2selftestbuff[SHA2_NUM_OF_SELF_TESTS][100] = {
- { "abc" },
- { "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq" },
- {'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a',
- 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a',
- 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a',
- 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a',
- 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a',
- 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a',
- 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a',
- 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a',
- 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a',
- 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a'}
- };
-
- static const u8 sha2selftestbufflen[SHA2_NUM_OF_SELF_TESTS] = {
- 3, 56, 100
- };
-
- static const u8 sha2selftestexpres[SHA2_NUM_OF_SELF_TESTS][SHA_2_HASH_LENGTH] = {
- /*
- * SHA-256 test vectors
- */
- { 0xBA, 0x78, 0x16, 0xBF, 0x8F, 0x01, 0xCF, 0xEA,
- 0x41, 0x41, 0x40, 0xDE, 0x5D, 0xAE, 0x22, 0x23,
- 0xB0, 0x03, 0x61, 0xA3, 0x96, 0x17, 0x7A, 0x9C,
- 0xB4, 0x10, 0xFF, 0x61, 0xF2, 0x00, 0x15, 0xAD },
- { 0x24, 0x8D, 0x6A, 0x61, 0xD2, 0x06, 0x38, 0xB8,
- 0xE5, 0xC0, 0x26, 0x93, 0x0C, 0x3E, 0x60, 0x39,
- 0xA3, 0x3C, 0xE4, 0x59, 0x64, 0xFF, 0x21, 0x67,
- 0xF6, 0xEC, 0xED, 0xD4, 0x19, 0xDB, 0x06, 0xC1 },
- { 0xCD, 0xC7, 0x6E, 0x5C, 0x99, 0x14, 0xFB, 0x92,
- 0x81, 0xA1, 0xC7, 0xE2, 0x84, 0xD7, 0x3E, 0x67,
- 0xF1, 0x80, 0x9A, 0x48, 0xA4, 0x97, 0x20, 0x0E,
- 0x04, 0x6D, 0x39, 0xCC, 0xC7, 0x11, 0x2C, 0xD0 },
- };
-
- if (type == npcm_sha_type_sha1) {
- /*--------------------------------------------------------------------*/
- /* SHA 1 TESTS */
- /*--------------------------------------------------------------------*/
- for (i = 0; i < SHA1_NUM_OF_SELF_TESTS; i++) {
- if (i != 3) {
- status = npcm_sha_calc(npcm_sha_type_sha1, sha1selftestbuff[i], sha1selftestbufflen[i], hashdigest);
- npcm_sha_check(status);
- } else {
- SHA_Power(true);
- SHA_Reset();
- status = SHA_Start(&handle, npcm_sha_type_sha1);
- npcm_sha_check(status);
- status = SHA_Update(&handle, sha1selftestbuff[i], 73);
- npcm_sha_check(status);
- status = SHA_Update(&handle, &sha1selftestbuff[i][73], sha1selftestbufflen[i] - 73);
- npcm_sha_check(status);
- status = SHA_Finish(&handle, hashdigest);
- npcm_sha_check(status);
- SHA_Power(false);
- }
-
- if (memcmp(hashdigest, sha1selftestexpres[i], SHA_1_HASH_LENGTH))
- return -1;
- }
-
- } else {
- /*--------------------------------------------------------------------*/
- /* SHA 2 TESTS */
- /*--------------------------------------------------------------------*/
- for (i = 0; i < SHA2_NUM_OF_SELF_TESTS; i++) {
- SHA_Power(true);
- SHA_Reset();
- status = SHA_Start(&handle, npcm_sha_type_sha2);
- npcm_sha_check(status);
- if (i == 2) {
- for (j = 0; j < 10000; j++) { //not working
- status = SHA_Update(&handle, sha2selftestbuff[i], sha2selftestbufflen[i]);
- npcm_sha_check(status);
- }
- } else {
- status = SHA_Update(&handle, sha2selftestbuff[i], sha2selftestbufflen[i]);
- npcm_sha_check(status);
- }
-
- status = SHA_Finish(&handle, hashdigest);
- npcm_sha_check(status);
- SHA_Power(false);
- if (memcmp(hashdigest, sha2selftestexpres[i], SHA_2_HASH_LENGTH))
- return -1;
-
- npcm_sha_calc(npcm_sha_type_sha2, sha2selftestbuff[i], sha2selftestbufflen[i], hashdigest);
- if (memcmp(hashdigest, sha2selftestexpres[i], SHA_2_HASH_LENGTH))
- return -1;
- }
+ if (!sha_priv->support_sha512) {
+ puts(" HW accelerator not support\n");
+ return;
}
-
- return 0;
+ puts(" using BMC HW accelerator\n");
+ npcm_sha_calc(input, len, output, type_sha384);
}
-/*----------------------------------------------------------------------------*/
-/* Function: SHA_FlushLocalBuffer_l */
-/* */
-/* Parameters: */
-/* Returns: none */
-/* Side effects: */
-/* Description: This routine flush secrun buffer to SHA module */
-/*----------------------------------------------------------------------------*/
-static void SHA_FlushLocalBuffer_l(const u32 *buff)
+void hw_sha256(const unsigned char *input, unsigned int len,
+ unsigned char *output, unsigned int chunk_sz)
{
- struct npcm_sha_regs *regs = sha_priv->regs;
- u32 i;
-
- for (i = 0; i < (SHA_BLOCK_LENGTH / sizeof(u32)); i++)
- writel(buff[i], ®s->hash_data_in);
+ puts(" using BMC HW accelerator\n");
+ npcm_sha_calc(input, len, output, type_sha256);
}
-/*----------------------------------------------------------------------------*/
-/* Function: SHA_BusyWait_l */
-/* */
-/* Parameters: */
-/* Returns: 0 if no error was found or DEFS_STATUS_ERROR otherwise */
-/* Side effects: */
-/* Description: This routine wait for SHA unit to no longer be busy */
-/*----------------------------------------------------------------------------*/
-static int SHA_BusyWait_l(void)
+void hw_sha1(const unsigned char *input, unsigned int len,
+ unsigned char *output, unsigned int chunk_sz)
{
- struct npcm_sha_regs *regs = sha_priv->regs;
- u32 timeout = SHA_TIMEOUT;
-
- do {
- if (timeout-- == 0)
- return -ETIMEDOUT;
- } while ((readb(®s->hash_ctr_sts) & HASH_CTR_STS_SHA_BUSY)
- == HASH_CTR_STS_SHA_BUSY);
-
- return 0;
+ puts(" using BMC HW accelerator\n");
+ npcm_sha_calc(input, len, output, type_sha1);
}
-/*----------------------------------------------------------------------------*/
-/* Function: SHA_GetShaDigest_l */
-/* */
-/* Parameters: hashDigest - buffer for the hash output. */
-/* type - SHA module type */
-/* Returns: none */
-/* Side effects: */
-/* Description: This routine copy the hash digest from the hardware */
-/* and into given buffer (in ram) */
-/*----------------------------------------------------------------------------*/
-static void SHA_GetShaDigest_l(u8 *hashdigest, u8 type)
+int hw_sha_init(struct hash_algo *algo, void **ctxp)
{
- struct npcm_sha_regs *regs = sha_priv->regs;
- u16 j;
- u8 len = SHA_HASH_LENGTH(type) / sizeof(u32);
-
- // Copy Bytes from SHA module to given buffer
- for (j = 0; j < len; j++)
- ((u32 *)hashdigest)[j] = readl(®s->hash_dig[j]);
-}
+ if (!strcmp("sha1", algo->name)) {
+ npcm_sha_init(type_sha1);
+ } else if (!strcmp("sha256", algo->name)) {
+ npcm_sha_init(type_sha256);
+ } else if (!strcmp("sha384", algo->name)) {
+ if (!sha_priv->support_sha512)
+ return -ENOTSUPP;
+ npcm_sha_init(type_sha384);
+ } else if (!strcmp("sha512", algo->name)) {
+ if (!sha_priv->support_sha512)
+ return -ENOTSUPP;
+ npcm_sha_init(type_sha512);
+ } else {
+ return -ENOTSUPP;
+ }
-/*----------------------------------------------------------------------------*/
-/* Function: SHA_SetShaDigest_l */
-/* */
-/* Parameters: hashDigest - input buffer to set as hash digest */
-/* type - SHA module type */
-/* Returns: none */
-/* Side effects: */
-/* Description: This routine set the hash digest in the hardware from */
-/* a given buffer (in ram) */
-/*----------------------------------------------------------------------------*/
-static void SHA_SetShaDigest_l(const u32 *hashdigest, u8 type)
-{
- struct npcm_sha_regs *regs = sha_priv->regs;
- u16 j;
- u8 len = SHA_HASH_LENGTH(type) / sizeof(u32);
+ printf("Using npcm SHA engine\n");
+ npcm_sha_reset();
+ npcm_sha_enable(true);
- // Copy Bytes from given buffer to SHA module
- for (j = 0; j < len; j++)
- writel(hashdigest[j], ®s->hash_dig[j]);
+ return 0;
}
-/*----------------------------------------------------------------------------*/
-/* Function: SHA_SetBlock_l */
-/* */
-/* Parameters: data - data to copy */
-/* len - size of data */
-/* position - byte offset into the block at which data */
-/* should be placed */
-/* block - block buffer */
-/* Returns: none */
-/* Side effects: */
-/* Description: This routine load bytes into block buffer */
-/*----------------------------------------------------------------------------*/
-static void SHA_SetBlock_l(const u8 *data, u32 len, u16 position, u32 *block)
+int hw_sha_update(struct hash_algo *algo, void *ctx, const void *buf,
+ unsigned int size, int is_last)
{
- u8 *dest = (u8 *)block;
-
- memcpy(dest + position, data, len);
+ return npcm_sha_update(buf, size);
}
-/*----------------------------------------------------------------------------*/
-/* Function: SHA_SetBlock_l */
-/* */
-/* Parameters: */
-/* len - size of data */
-/* position - byte offset into the block at which data */
-/* should be placed */
-/* block - block buffer */
-/* Returns: none */
-/* Side effects: */
-/* Description: This routine load zero's into the block buffer */
-/*----------------------------------------------------------------------------*/
-static void SHA_ClearBlock_l(u16 len, u16 position, u32 *block)
+int hw_sha_finish(struct hash_algo *algo, void *ctx, void *dest_buf,
+ int size)
{
- u8 *dest = (u8 *)block;
+ int ret;
- memset(dest + position, 0, len);
-}
+ ret = npcm_sha_finish(dest_buf);
+ npcm_sha_enable(false);
-/*----------------------------------------------------------------------------*/
-/* Function: SHA_SetLength32_l */
-/* */
-/* Parameters: */
-/* handlePtr - SHA processing handle pointer */
-/* block - block buffer */
-/* Returns: none */
-/* Side effects: */
-/* Description: This routine set the length of the hash's data */
-/* len is the 32-bit byte length of the message */
-/*lint -efunc(734,SHA_SetLength32_l) Supperess loss of percision lint warning */
-/*----------------------------------------------------------------------------*/
-static void SHA_SetLength32_l(struct SHA_HANDLE_T *handleptr, u32 *block)
-{
- u16 *secrunbufferswappedptr = (u16 *)(void *)(block);
-
- secrunbufferswappedptr[(SHA_BLOCK_LENGTH / sizeof(u16)) - 1] = (u16)
- ((handleptr->length0 << 3) << 8) | ((u16)(handleptr->length0 << 3) >> 8);
- secrunbufferswappedptr[(SHA_BLOCK_LENGTH / sizeof(u16)) - 2] = (u16)
- ((handleptr->length0 >> (16 - 3)) >> 8) | ((u16)(handleptr->length0 >> (16 - 3)) << 8);
- secrunbufferswappedptr[(SHA_BLOCK_LENGTH / sizeof(u16)) - 3] = (u16)
- ((handleptr->length1 << 3) << 8) | ((u16)(handleptr->length1 << 3) >> 8);
- secrunbufferswappedptr[(SHA_BLOCK_LENGTH / sizeof(u16)) - 4] = (u16)
- ((handleptr->length1 >> (16 - 3)) >> 8) | ((u16)(handleptr->length1 >> (16 - 3)) << 8);
+ return ret;
}
static int npcm_sha_bind(struct udevice *dev)
if (!sha_priv)
return -ENOMEM;
- sha_priv->regs = dev_remap_addr_index(dev, 0);
- if (!sha_priv->regs) {
+ sha_priv->base = dev_read_addr_ptr(dev);
+ if (!sha_priv->base) {
printf("Cannot find sha reg address, binding failed\n");
return -EINVAL;
}
+ if (IS_ENABLED(CONFIG_ARCH_NPCM8XX))
+ sha_priv->support_sha512 = true;
+
printf("SHA: NPCM SHA module bind OK\n");
return 0;
projects / u-boot.git / commitdiff
