drivers/crypto/starfive/jh7110-cryp.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef __STARFIVE_STR_H__
   3 #define __STARFIVE_STR_H__
   4
   5 #include <linux/delay.h>
   6 #include <linux/dma-mapping.h>
   7 #include <linux/dmaengine.h>
   8
   9 #include <crypto/engine.h>
  10
  11 #define STARFIVE_ALG_CR_OFFSET                  0x0
  12 #define STARFIVE_ALG_FIFO_OFFSET                0x4
  13 #define STARFIVE_IE_MASK_OFFSET                 0x8
  14 #define STARFIVE_IE_FLAG_OFFSET                 0xc
  15 #define STARFIVE_DMA_IN_LEN_OFFSET              0x10
  16 #define STARFIVE_DMA_OUT_LEN_OFFSET             0x14
  17
  18 #define STARFIVE_MSG_BUFFER_SIZE                SZ_16K
  19
  20 union starfive_alg_cr {
  21         u32 v;
  22         struct {
  23                 u32 start                       :1;
  24                 u32 aes_dma_en                  :1;
  25                 u32 rsvd_0                      :1;
  26                 u32 hash_dma_en                 :1;
  27                 u32 alg_done                    :1;
  28                 u32 rsvd_1                      :3;
  29                 u32 clear                       :1;
  30                 u32 rsvd_2                      :23;
  31         };
  32 };
  33
  34 struct starfive_cryp_ctx {
  35         struct crypto_engine_ctx                enginectx;
  36         struct starfive_cryp_dev                *cryp;
  37
  38         u8                                      *buffer;
  39 };
  40
  41 struct starfive_cryp_dev {
  42         struct list_head                        list;
  43         struct device                           *dev;
  44
  45         struct clk                              *hclk;
  46         struct clk                              *ahb;
  47         struct reset_control                    *rst;
  48
  49         void __iomem                            *base;
  50         phys_addr_t                             phys_base;
  51
  52         u32                                     dma_maxburst;
  53         struct dma_chan                         *tx;
  54         struct dma_chan                         *rx;
  55         struct dma_slave_config                 cfg_in;
  56         struct dma_slave_config                 cfg_out;
  57         struct completion                       tx_comp;
  58         struct completion                       rx_comp;
  59
  60         struct crypto_engine                    *engine;
  61
  62         union starfive_alg_cr                   alg_cr;
  63 };
  64
  65 struct starfive_cryp_dev *starfive_cryp_find_dev(struct starfive_cryp_ctx *ctx);
  66
  67 #endif