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kernel add
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/*
* FUJITSU Extended Socket Network Device driver
* Copyright (c) 2015 FUJITSU LIMITED
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope 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, see <http://www.gnu.org/licenses/>.
*
* The full GNU General Public License is included in this distribution in
* the file called "COPYING".
*
*/
#ifndef FJES_REGS_H_
#define FJES_REGS_H_
#include <linux/bitops.h>
#define XSCT_DEVICE_REGISTER_SIZE 0x1000
/* register offset */
/* Information registers */
#define XSCT_OWNER_EPID 0x0000 /* Owner EPID */
#define XSCT_MAX_EP 0x0004 /* Maximum EP */
/* Device Control registers */
#define XSCT_DCTL 0x0010 /* Device Control */
/* Command Control registers */
#define XSCT_CR 0x0020 /* Command request */
#define XSCT_CS 0x0024 /* Command status */
#define XSCT_SHSTSAL 0x0028 /* Share status address Low */
#define XSCT_SHSTSAH 0x002C /* Share status address High */
#define XSCT_REQBL 0x0034 /* Request Buffer length */
#define XSCT_REQBAL 0x0038 /* Request Buffer Address Low */
#define XSCT_REQBAH 0x003C /* Request Buffer Address High */
#define XSCT_RESPBL 0x0044 /* Response Buffer Length */
#define XSCT_RESPBAL 0x0048 /* Response Buffer Address Low */
#define XSCT_RESPBAH 0x004C /* Response Buffer Address High */
/* Interrupt Control registers */
#define XSCT_IS 0x0080 /* Interrupt status */
#define XSCT_IMS 0x0084 /* Interrupt mask set */
#define XSCT_IMC 0x0088 /* Interrupt mask clear */
#define XSCT_IG 0x008C /* Interrupt generator */
#define XSCT_ICTL 0x0090 /* Interrupt control */
/* register structure */
/* Information registers */
union REG_OWNER_EPID {
struct {
__le32 epid:16;
__le32:16;
} bits;
__le32 reg;
};
union REG_MAX_EP {
struct {
__le32 maxep:16;
__le32:16;
} bits;
__le32 reg;
};
/* Device Control registers */
union REG_DCTL {
struct {
__le32 reset:1;
__le32 rsv0:15;
__le32 rsv1:16;
} bits;
__le32 reg;
};
/* Command Control registers */
union REG_CR {
struct {
__le32 req_code:16;
__le32 err_info:14;
__le32 error:1;
__le32 req_start:1;
} bits;
__le32 reg;
};
union REG_CS {
struct {
__le32 req_code:16;
__le32 rsv0:14;
__le32 busy:1;
__le32 complete:1;
} bits;
__le32 reg;
};
/* Interrupt Control registers */
union REG_ICTL {
struct {
__le32 automak:1;
__le32 rsv0:31;
} bits;
__le32 reg;
};
enum REG_ICTL_MASK {
REG_ICTL_MASK_INFO_UPDATE = 1 << 20,
REG_ICTL_MASK_DEV_STOP_REQ = 1 << 19,
REG_ICTL_MASK_TXRX_STOP_REQ = 1 << 18,
REG_ICTL_MASK_TXRX_STOP_DONE = 1 << 17,
REG_ICTL_MASK_RX_DATA = 1 << 16,
REG_ICTL_MASK_ALL = GENMASK(20, 16),
};
enum REG_IS_MASK {
REG_IS_MASK_IS_ASSERT = 1 << 31,
REG_IS_MASK_EPID = GENMASK(15, 0),
};
struct fjes_hw;
u32 fjes_hw_rd32(struct fjes_hw *hw, u32 reg);
#define wr32(reg, val) \
do { \
u8 *base = hw->base; \
writel((val), &base[(reg)]); \
} while (0)
#define rd32(reg) (fjes_hw_rd32(hw, reg))
#endif /* FJES_REGS_H_ */
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