crypto: picoxcell - add support for the picoxcell crypto engines

Picochip picoXcell devices have two crypto engines, one targeted
at IPSEC offload and the other at WCDMA layer 2 ciphering.

Signed-off-by: Jamie Iles <jamie@jamieiles.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

1 files changed, 128 insertions, 0 deletions

diff --git a/drivers/crypto/picoxcell_crypto_regs.h b/drivers/crypto/picoxcell_crypto_regs.h
new file mode 100644
index 000000000000..af93442564c9
--- /dev/null
+++ b/drivers/crypto/picoxcell_crypto_regs.h
@@ -0,0 +1,128 @@
+/*
+ * Copyright (c) 2010 Picochip Ltd., Jamie Iles
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+#ifndef __PICOXCELL_CRYPTO_REGS_H__
+#define __PICOXCELL_CRYPTO_REGS_H__
+
+#define SPA_STATUS_OK                   0
+#define SPA_STATUS_ICV_FAIL             1
+#define SPA_STATUS_MEMORY_ERROR         2
+#define SPA_STATUS_BLOCK_ERROR          3
+
+#define SPA_IRQ_CTRL_STAT_CNT_OFFSET    16
+#define SPA_IRQ_STAT_STAT_MASK          (1 << 4)
+#define SPA_FIFO_STAT_STAT_OFFSET       16
+#define SPA_FIFO_STAT_STAT_CNT_MASK     (0x3F << SPA_FIFO_STAT_STAT_OFFSET)
+#define SPA_STATUS_RES_CODE_OFFSET      24
+#define SPA_STATUS_RES_CODE_MASK        (0x3 << SPA_STATUS_RES_CODE_OFFSET)
+#define SPA_KEY_SZ_CTX_INDEX_OFFSET     8
+#define SPA_KEY_SZ_CIPHER_OFFSET        31
+
+#define SPA_IRQ_EN_REG_OFFSET           0x00000000
+#define SPA_IRQ_STAT_REG_OFFSET         0x00000004
+#define SPA_IRQ_CTRL_REG_OFFSET         0x00000008
+#define SPA_FIFO_STAT_REG_OFFSET        0x0000000C
+#define SPA_SDMA_BRST_SZ_REG_OFFSET     0x00000010
+#define SPA_SRC_PTR_REG_OFFSET          0x00000020
+#define SPA_DST_PTR_REG_OFFSET          0x00000024
+#define SPA_OFFSET_REG_OFFSET           0x00000028
+#define SPA_AAD_LEN_REG_OFFSET          0x0000002C
+#define SPA_PROC_LEN_REG_OFFSET         0x00000030
+#define SPA_ICV_LEN_REG_OFFSET          0x00000034
+#define SPA_ICV_OFFSET_REG_OFFSET       0x00000038
+#define SPA_SW_CTRL_REG_OFFSET          0x0000003C
+#define SPA_CTRL_REG_OFFSET             0x00000040
+#define SPA_AUX_INFO_REG_OFFSET         0x0000004C
+#define SPA_STAT_POP_REG_OFFSET         0x00000050
+#define SPA_STATUS_REG_OFFSET           0x00000054
+#define SPA_KEY_SZ_REG_OFFSET           0x00000100
+#define SPA_CIPH_KEY_BASE_REG_OFFSET    0x00004000
+#define SPA_HASH_KEY_BASE_REG_OFFSET    0x00008000
+#define SPA_RC4_CTX_BASE_REG_OFFSET     0x00020000
+
+#define SPA_IRQ_EN_REG_RESET            0x00000000
+#define SPA_IRQ_CTRL_REG_RESET          0x00000000
+#define SPA_FIFO_STAT_REG_RESET         0x00000000
+#define SPA_SDMA_BRST_SZ_REG_RESET      0x00000000
+#define SPA_SRC_PTR_REG_RESET           0x00000000
+#define SPA_DST_PTR_REG_RESET           0x00000000
+#define SPA_OFFSET_REG_RESET            0x00000000
+#define SPA_AAD_LEN_REG_RESET           0x00000000
+#define SPA_PROC_LEN_REG_RESET          0x00000000
+#define SPA_ICV_LEN_REG_RESET           0x00000000
+#define SPA_ICV_OFFSET_REG_RESET        0x00000000
+#define SPA_SW_CTRL_REG_RESET           0x00000000
+#define SPA_CTRL_REG_RESET              0x00000000
+#define SPA_AUX_INFO_REG_RESET          0x00000000
+#define SPA_STAT_POP_REG_RESET          0x00000000
+#define SPA_STATUS_REG_RESET            0x00000000
+#define SPA_KEY_SZ_REG_RESET            0x00000000
+
+#define SPA_CTRL_HASH_ALG_IDX           4
+#define SPA_CTRL_CIPH_MODE_IDX          8
+#define SPA_CTRL_HASH_MODE_IDX          12
+#define SPA_CTRL_CTX_IDX                16
+#define SPA_CTRL_ENCRYPT_IDX            24
+#define SPA_CTRL_AAD_COPY               25
+#define SPA_CTRL_ICV_PT                 26
+#define SPA_CTRL_ICV_ENC                27
+#define SPA_CTRL_ICV_APPEND             28
+#define SPA_CTRL_KEY_EXP                29
+
+#define SPA_KEY_SZ_CXT_IDX              8
+#define SPA_KEY_SZ_CIPHER_IDX           31
+
+#define SPA_IRQ_EN_CMD0_EN              (1 << 0)
+#define SPA_IRQ_EN_STAT_EN              (1 << 4)
+#define SPA_IRQ_EN_GLBL_EN              (1 << 31)
+
+#define SPA_CTRL_CIPH_ALG_NULL          0x00
+#define SPA_CTRL_CIPH_ALG_DES           0x01
+#define SPA_CTRL_CIPH_ALG_AES           0x02
+#define SPA_CTRL_CIPH_ALG_RC4           0x03
+#define SPA_CTRL_CIPH_ALG_MULTI2        0x04
+#define SPA_CTRL_CIPH_ALG_KASUMI        0x05
+
+#define SPA_CTRL_HASH_ALG_NULL          (0x00 << SPA_CTRL_HASH_ALG_IDX)
+#define SPA_CTRL_HASH_ALG_MD5           (0x01 << SPA_CTRL_HASH_ALG_IDX)
+#define SPA_CTRL_HASH_ALG_SHA           (0x02 << SPA_CTRL_HASH_ALG_IDX)
+#define SPA_CTRL_HASH_ALG_SHA224        (0x03 << SPA_CTRL_HASH_ALG_IDX)
+#define SPA_CTRL_HASH_ALG_SHA256        (0x04 << SPA_CTRL_HASH_ALG_IDX)
+#define SPA_CTRL_HASH_ALG_SHA384        (0x05 << SPA_CTRL_HASH_ALG_IDX)
+#define SPA_CTRL_HASH_ALG_SHA512        (0x06 << SPA_CTRL_HASH_ALG_IDX)
+#define SPA_CTRL_HASH_ALG_AESMAC        (0x07 << SPA_CTRL_HASH_ALG_IDX)
+#define SPA_CTRL_HASH_ALG_AESCMAC       (0x08 << SPA_CTRL_HASH_ALG_IDX)
+#define SPA_CTRL_HASH_ALG_KASF9         (0x09 << SPA_CTRL_HASH_ALG_IDX)
+
+#define SPA_CTRL_CIPH_MODE_NULL         (0x00 << SPA_CTRL_CIPH_MODE_IDX)
+#define SPA_CTRL_CIPH_MODE_ECB          (0x00 << SPA_CTRL_CIPH_MODE_IDX)
+#define SPA_CTRL_CIPH_MODE_CBC          (0x01 << SPA_CTRL_CIPH_MODE_IDX)
+#define SPA_CTRL_CIPH_MODE_CTR          (0x02 << SPA_CTRL_CIPH_MODE_IDX)
+#define SPA_CTRL_CIPH_MODE_CCM          (0x03 << SPA_CTRL_CIPH_MODE_IDX)
+#define SPA_CTRL_CIPH_MODE_GCM          (0x05 << SPA_CTRL_CIPH_MODE_IDX)
+#define SPA_CTRL_CIPH_MODE_OFB          (0x07 << SPA_CTRL_CIPH_MODE_IDX)
+#define SPA_CTRL_CIPH_MODE_CFB          (0x08 << SPA_CTRL_CIPH_MODE_IDX)
+#define SPA_CTRL_CIPH_MODE_F8           (0x09 << SPA_CTRL_CIPH_MODE_IDX)
+
+#define SPA_CTRL_HASH_MODE_RAW          (0x00 << SPA_CTRL_HASH_MODE_IDX)
+#define SPA_CTRL_HASH_MODE_SSLMAC       (0x01 << SPA_CTRL_HASH_MODE_IDX)
+#define SPA_CTRL_HASH_MODE_HMAC         (0x02 << SPA_CTRL_HASH_MODE_IDX)
+
+#define SPA_FIFO_STAT_EMPTY             (1 << 31)
+#define SPA_FIFO_CMD_FULL               (1 << 7)
+
+#endif /* __PICOXCELL_CRYPTO_REGS_H__ */