mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-06 11:16:15 +09:00
83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
203 lines
6.4 KiB
C
203 lines
6.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Flex CAN Memory Map
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*
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* Copyright (C) 2004-2007 Freescale Semiconductor, Inc.
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* TsiChung Liew (Tsi-Chung.Liew@freescale.com)
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*/
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#ifndef __FLEXCAN_H__
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#define __FLEXCAN_H__
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/* FlexCan Message Buffer */
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typedef struct can_msgbuf_ctrl {
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#ifdef CONFIG_M5282
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u8 tmstamp; /* 0x00 Timestamp */
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u8 ctrl; /* 0x01 Control */
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u16 idh; /* 0x02 ID High */
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u16 idl; /* 0x04 ID High */
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u8 data[8]; /* 0x06 8 Byte Data Field */
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u16 res; /* 0x0E */
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#else
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u16 ctrl; /* 0x00 Control/Status */
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u16 tmstamp; /* 0x02 Timestamp */
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u32 id; /* 0x04 Identifier */
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u8 data[8]; /* 0x08 8 Byte Data Field */
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#endif
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} can_msg_t;
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#ifdef CONFIG_M5282
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/* MSGBUF CTRL */
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#define CAN_MSGBUF_CTRL_CODE(x) (((x) & 0x0F) << 4)
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#define CAN_MSGBUF_CTRL_CODE_MASK (0x0F)
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#define CAN_MSGBUF_CTRL_LEN(x) ((x) & 0x0F)
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#define CAN_MSGBUF_CTRL_LEN_MASK (0xF0)
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/* MSGBUF ID */
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#define CAN_MSGBUF_IDH_STD(x) (((x) & 0x07FF) << 5)
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#define CAN_MSGBUF_IDH_STD_MASK (0xE003FFFF)
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#define CAN_MSGBUF_IDH_SRR (0x0010)
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#define CAN_MSGBUF_IDH_IDE (0x0080)
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#define CAN_MSGBUF_IDH_EXTH(x) ((x) & 0x07)
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#define CAN_MSGBUF_IDH_EXTH_MASK (0xFFF8)
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#define CAN_MSGBUF_IDL_EXTL(x) (((x) & 0x7FFF) << 1)
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#define CAN_MSGBUF_IDL_EXTL_MASK (0xFFFE)
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#define CAN_MSGBUF_IDL_RTR (0x0001)
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#else
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/* MSGBUF CTRL */
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#define CAN_MSGBUF_CTRL_CODE(x) (((x) & 0x000F) << 8)
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#define CAN_MSGBUF_CTRL_CODE_MASK (0xF0FF)
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#define CAN_MSGBUF_CTRL_SRR (0x0040)
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#define CAN_MSGBUF_CTRL_IDE (0x0020)
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#define CAN_MSGBUF_CTRL_RTR (0x0010)
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#define CAN_MSGBUF_CTRL_LEN(x) ((x) & 0x000F)
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#define CAN_MSGBUF_CTRL_LEN_MASK (0xFFF0)
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/* MSGBUF ID */
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#define CAN_MSGBUF_ID_STD(x) (((x) & 0x000007FF) << 18)
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#define CAN_MSGBUF_ID_STD_MASK (0xE003FFFF)
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#define CAN_MSGBUF_ID_EXT(x) ((x) & 0x0003FFFF)
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#define CAN_MSGBUF_ID_EXT_MASK (0xFFFC0000)
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#endif
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/* FlexCan module */
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typedef struct can_ctrl {
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u32 mcr; /* 0x00 Module Configuration */
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u32 ctrl; /* 0x04 Control */
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u32 timer; /* 0x08 Free Running Timer */
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u32 res1; /* 0x0C */
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u32 rxgmsk; /* 0x10 Rx Global Mask */
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u32 rx14msk; /* 0x14 RxBuffer 14 Mask */
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u32 rx15msk; /* 0x18 RxBuffer 15 Mask */
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#ifdef CONFIG_M5282
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u32 res2; /* 0x1C */
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u16 errstat; /* 0x20 Error and status */
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u16 imsk; /* 0x22 Interrupt Mask */
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u16 iflag; /* 0x24 Interrupt Flag */
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u16 errcnt; /* 0x26 Error Counter */
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u32 res3[3]; /* 0x28 - 0x33 */
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#else
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u16 res2; /* 0x1C */
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u16 errcnt; /* 0x1E Error Counter */
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u16 res3; /* 0x20 */
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u16 errstat; /* 0x22 Error and status */
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u32 res4; /* 0x24 */
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u32 imsk; /* 0x28 Interrupt Mask */
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u32 res5; /* 0x2C */
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u16 iflag; /* 0x30 Interrupt Flag */
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#endif
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u32 res6[19]; /* 0x34 - 0x7F */
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void *msgbuf; /* 0x80 Message Buffer 0-15 */
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} can_t;
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/* MCR */
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#define CAN_MCR_MDIS (0x80000000)
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#define CAN_MCR_FRZ (0x40000000)
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#define CAN_MCR_HALT (0x10000000)
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#define CAN_MCR_NORDY (0x08000000)
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#define CAN_MCF_WAKEMSK (0x04000000) /* 5282 */
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#define CAN_MCR_SOFTRST (0x02000000)
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#define CAN_MCR_FRZACK (0x01000000)
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#define CAN_MCR_SUPV (0x00800000)
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#define CAN_MCR_SELFWAKE (0x00400000) /* 5282 */
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#define CAN_MCR_APS (0x00200000) /* 5282 */
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#define CAN_MCR_LPMACK (0x00100000)
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#define CAN_MCF_BCC (0x00010000)
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#define CAN_MCR_MAXMB(x) ((x) & 0x0F)
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#define CAN_MCR_MAXMB_MASK (0xFFFFFFF0)
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/* CTRL */
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#define CAN_CTRL_PRESDIV(x) (((x) & 0xFF) << 24)
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#define CAN_CTRL_PRESDIV_MASK (0x00FFFFFF)
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#define CAN_CTRL_RJW(x) (((x) & 0x03) << 22)
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#define CAN_CTRL_RJW_MASK (0xFF3FFFFF)
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#define CAN_CTRL_PSEG1(x) (((x) & 0x07) << 19)
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#define CAN_CTRL_PSEG1_MASK (0xFFC7FFFF)
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#define CAN_CTRL_PSEG2(x) (((x) & 0x07) << 16)
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#define CAN_CTRL_PSEG2_MASK (0xFFF8FFFF)
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#define CAN_CTRL_BOFFMSK (0x00008000)
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#define CAN_CTRL_ERRMSK (0x00004000)
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#define CAN_CTRL_CLKSRC (0x00002000)
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#define CAN_CTRL_LPB (0x00001000)
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#define CAN_CTRL_RXMODE (0x00000400) /* 5282 */
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#define CAN_CTRL_TXMODE(x) (((x) & 0x03) << 8) /* 5282 */
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#define CAN_CTRL_TXMODE_MASK (0xFFFFFCFF) /* 5282 */
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#define CAN_CTRL_TXMODE_CAN0 (0x00000000) /* 5282 */
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#define CAN_CTRL_TXMODE_CAN1 (0x00000100) /* 5282 */
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#define CAN_CTRL_TXMODE_OPEN (0x00000200) /* 5282 */
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#define CAN_CTRL_SMP (0x00000080)
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#define CAN_CTRL_BOFFREC (0x00000040)
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#define CAN_CTRL_TSYNC (0x00000020)
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#define CAN_CTRL_LBUF (0x00000010)
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#define CAN_CTRL_LOM (0x00000008)
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#define CAN_CTRL_PROPSEG(x) ((x) & 0x07)
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#define CAN_CTRL_PROPSEG_MASK (0xFFFFFFF8)
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/* TIMER */
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/* Note: PRESDIV, RJW, PSG1, and PSG2 are part of timer in 5282 */
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#define CAN_TIMER(x) ((x) & 0xFFFF)
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#define CAN_TIMER_MASK (0xFFFF0000)
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/* RXGMASK */
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#ifdef CONFIG_M5282
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#define CAN_RXGMSK_MI_STD(x) (((x) & 0x000007FF) << 21)
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#define CAN_RXGMSK_MI_STD_MASK (0x001FFFFF)
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#define CAN_RXGMSK_MI_EXT(x) (((x) & 0x0003FFFF) << 1)
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#define CAN_RXGMSK_MI_EXT_MASK (0xFFF80001)
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#else
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#define CAN_RXGMSK_MI_STD(x) (((x) & 0x000007FF) << 18)
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#define CAN_RXGMSK_MI_STD_MASK (0xE003FFFF)
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#define CAN_RXGMSK_MI_EXT(x) ((x) & 0x0003FFFF)
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#define CAN_RXGMSK_MI_EXT_MASK (0xFFFC0000)
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#endif
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/* ERRCNT */
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#define CAN_ERRCNT_RXECTR(x) (((x) & 0xFF) << 8)
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#define CAN_ERRCNT_RXECTR_MASK (0x00FF)
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#define CAN_ERRCNT_TXECTR(x) ((x) & 0xFF)
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#define CAN_ERRCNT_TXECTR_MASK (0xFF00)
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/* ERRSTAT */
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#define CAN_ERRSTAT_BITERR1 (0x8000)
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#define CAN_ERRSTAT_BITERR0 (0x4000)
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#define CAN_ERRSTAT_ACKERR (0x2000)
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#define CAN_ERRSTAT_CRCERR (0x1000)
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#define CAN_ERRSTAT_FRMERR (0x0800)
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#define CAN_ERRSTAT_STFERR (0x0400)
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#define CAN_ERRSTAT_TXWRN (0x0200)
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#define CAN_ERRSTAT_RXWRN (0x0100)
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#define CAN_ERRSTAT_IDLE (0x0080)
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#define CAN_ERRSTAT_TXRX (0x0040)
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#define CAN_ERRSTAT_FLT_MASK (0xFFCF)
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#define CAN_ERRSTAT_FLT_BUSOFF (0x0020)
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#define CAN_ERRSTAT_FLT_PASSIVE (0x0010)
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#define CAN_ERRSTAT_FLT_ACTIVE (0x0000)
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#ifdef CONFIG_M5282
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#define CAN_ERRSTAT_BOFFINT (0x0004)
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#define CAN_ERRSTAT_ERRINT (0x0002)
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#else
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#define CAN_ERRSTAT_ERRINT (0x0004)
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#define CAN_ERRSTAT_BOFFINT (0x0002)
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#define CAN_ERRSTAT_WAKEINT (0x0001)
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#endif
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/* IMASK */
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#ifdef CONFIG_M5253
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#define CAN_IMASK_BUFnM(x) (1 << (x & 0xFFFFFFFF))
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#define CAN_IMASK_BUFnM_MASKBIT(x) ~CAN_IMASK_BUFnM(x)
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#else
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#define CAN_IMASK_BUFnM(x) (1 << (x & 0xFFFF))
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#define CAN_IMASK_BUFnM_MASKBIT(x) ~CAN_IMASK_BUFnM(x)
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#endif
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/* IFLAG */
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#ifdef CONFIG_M5253
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#define CAN_IFLAG_BUFnM(x) (1 << (x & 0xFFFFFFFF))
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#define CAN_IFLAG_BUFnM_MASKBIT(x) ~CAN_IFLAG_BUFnM(x)
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#else
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#define CAN_IFLAG_BUFnM(x) (1 << (x & 0xFFFF))
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#define CAN_IFLAG_BUFnM_MASKBIT(x) ~CAN_IFLAG_BUFnM(x)
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#endif
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#endif /* __FLEXCAN_H__ */
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