1 // SPDX-License-Identifier: GPL-2.0+
3  * Advanced Crypto Engine - SHA Firmware
10 #include <u-boot/sha256.h>
11 #include <u-boot/sha1.h>
45 	writel(ACE_FC_HRDMACFLUSH_ON, &ace_sha_reg->fc_hrdmac);  in ace_sha_hash_digest()
46 	writel(ACE_FC_HRDMACFLUSH_OFF, &ace_sha_reg->fc_hrdmac);  in ace_sha_hash_digest()
50 	       &ace_sha_reg->hash_byteswap);  in ace_sha_hash_digest()
53 	reg = readl(&ace_sha_reg->fc_fifoctrl);  in ace_sha_hash_digest()
55 	writel(reg, &ace_sha_reg->fc_fifoctrl);  in ace_sha_hash_digest()
61 	writel(reg, &ace_sha_reg->hash_control);  in ace_sha_hash_digest()
64 	writel(ACE_HASH_FIFO_ON, &ace_sha_reg->hash_fifo_mode);  in ace_sha_hash_digest()
67 	writel(buf_len, &ace_sha_reg->hash_msgsize_low);  in ace_sha_hash_digest()
68 	writel(0, &ace_sha_reg->hash_msgsize_high);  in ace_sha_hash_digest()
71 	writel((unsigned int)pbuf, &ace_sha_reg->fc_hrdmas);  in ace_sha_hash_digest()
72 	writel(buf_len, &ace_sha_reg->fc_hrdmal);  in ace_sha_hash_digest()
74 	while ((readl(&ace_sha_reg->hash_status) & ACE_HASH_MSGDONE_MASK) ==  in ace_sha_hash_digest()
78 		 * a complete seed setup. We are using this bit to check h/w  in ace_sha_hash_digest()
81 		if ((readl(&ace_sha_reg->hash_status)  in ace_sha_hash_digest()
83 			return -EBUSY;  in ace_sha_hash_digest()
87 	writel(ACE_HASH_MSGDONE_ON, &ace_sha_reg->hash_status);  in ace_sha_hash_digest()
94 		pdigest[i] = readl(&ace_sha_reg->hash_result[i]);  in ace_sha_hash_digest()
97 	writel(ACE_FC_HRDMA, &ace_sha_reg->fc_intpend);  in ace_sha_hash_digest()
120 void srand(unsigned int seed)  in srand()  argument
126 	/* Seed data */  in srand()
128 		writel(seed << i, &reg->hash_seed[i]);  in srand()
130 	/* Wait for seed setup done */  in srand()
132 		status = readl(&reg->hash_status);  in srand()
146 	unsigned int seed = (unsigned int)&status;  in rand()  local
150 		srand(seed);  in rand()
153 	writel(ACE_HASH_ENGSEL_PRNG | ACE_HASH_STARTBIT_ON, &reg->hash_control);  in rand()
157 		status = readl(&reg->hash_status);  in rand()
167 	writel(ACE_HASH_PRNGDONE_MASK, &reg->hash_status);  in rand()
171 		ret += readl(&reg->hash_prng[i]);  in rand()