xref: /openbmc/linux/arch/powerpc/include/asm/mpc5121.h (revision acc15900)
1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  * MPC5121 Prototypes and definitions
4  */
5 
6 #ifndef __ASM_POWERPC_MPC5121_H__
7 #define __ASM_POWERPC_MPC5121_H__
8 
9 /* MPC512x Reset module registers */
10 struct mpc512x_reset_module {
11 	u32	rcwlr;	/* Reset Configuration Word Low Register */
12 	u32	rcwhr;	/* Reset Configuration Word High Register */
13 	u32	reserved1;
14 	u32	reserved2;
15 	u32	rsr;	/* Reset Status Register */
16 	u32	rmr;	/* Reset Mode Register */
17 	u32	rpr;	/* Reset Protection Register */
18 	u32	rcr;	/* Reset Control Register */
19 	u32	rcer;	/* Reset Control Enable Register */
20 };
21 
22 /*
23  * Clock Control Module
24  */
25 struct mpc512x_ccm {
26 	u32	spmr;	/* System PLL Mode Register */
27 	u32	sccr1;	/* System Clock Control Register 1 */
28 	u32	sccr2;	/* System Clock Control Register 2 */
29 	u32	scfr1;	/* System Clock Frequency Register 1 */
30 	u32	scfr2;	/* System Clock Frequency Register 2 */
31 	u32	scfr2s;	/* System Clock Frequency Shadow Register 2 */
32 	u32	bcr;	/* Bread Crumb Register */
33 	u32	psc_ccr[12];	/* PSC Clock Control Registers */
34 	u32	spccr;	/* SPDIF Clock Control Register */
35 	u32	cccr;	/* CFM Clock Control Register */
36 	u32	dccr;	/* DIU Clock Control Register */
37 	u32	mscan_ccr[4];	/* MSCAN Clock Control Registers */
38 	u32	out_ccr[4];	/* OUT CLK Configure Registers */
39 	u32	rsv0[2];	/* Reserved */
40 	u32	scfr3;		/* System Clock Frequency Register 3 */
41 	u32	rsv1[3];	/* Reserved */
42 	u32	spll_lock_cnt;	/* System PLL Lock Counter */
43 	u8	res[0x6c];	/* Reserved */
44 };
45 
46 /*
47  * LPC Module
48  */
49 struct mpc512x_lpc {
50 	u32	cs_cfg[8];	/* CS config */
51 	u32	cs_ctrl;	/* CS Control Register */
52 	u32	cs_status;	/* CS Status Register */
53 	u32	burst_ctrl;	/* CS Burst Control Register */
54 	u32	deadcycle_ctrl;	/* CS Deadcycle Control Register */
55 	u32	holdcycle_ctrl;	/* CS Holdcycle Control Register */
56 	u32	alt;		/* Address Latch Timing Register */
57 };
58 
59 int mpc512x_cs_config(unsigned int cs, u32 val);
60 
61 /*
62  * SCLPC Module (LPB FIFO)
63  */
64 struct mpc512x_lpbfifo {
65 	u32	pkt_size;	/* SCLPC Packet Size Register */
66 	u32	start_addr;	/* SCLPC Start Address Register */
67 	u32	ctrl;		/* SCLPC Control Register */
68 	u32	enable;		/* SCLPC Enable Register */
69 	u32	reserved1;
70 	u32	status;		/* SCLPC Status Register */
71 	u32	bytes_done;	/* SCLPC Bytes Done Register */
72 	u32	emb_sc;		/* EMB Share Counter Register */
73 	u32	emb_pc;		/* EMB Pause Control Register */
74 	u32	reserved2[7];
75 	u32	data_word;	/* LPC RX/TX FIFO Data Word Register */
76 	u32	fifo_status;	/* LPC RX/TX FIFO Status Register */
77 	u32	fifo_ctrl;	/* LPC RX/TX FIFO Control Register */
78 	u32	fifo_alarm;	/* LPC RX/TX FIFO Alarm Register */
79 };
80 
81 #define MPC512X_SCLPC_START		(1 << 31)
82 #define MPC512X_SCLPC_CS(x)		(((x) & 0x7) << 24)
83 #define MPC512X_SCLPC_FLUSH		(1 << 17)
84 #define MPC512X_SCLPC_READ		(1 << 16)
85 #define MPC512X_SCLPC_DAI		(1 << 8)
86 #define MPC512X_SCLPC_BPT(x)		((x) & 0x3f)
87 #define MPC512X_SCLPC_RESET		(1 << 24)
88 #define MPC512X_SCLPC_FIFO_RESET	(1 << 16)
89 #define MPC512X_SCLPC_ABORT_INT_ENABLE	(1 << 9)
90 #define MPC512X_SCLPC_NORM_INT_ENABLE	(1 << 8)
91 #define MPC512X_SCLPC_ENABLE		(1 << 0)
92 #define MPC512X_SCLPC_SUCCESS		(1 << 24)
93 #define MPC512X_SCLPC_FIFO_CTRL(x)	(((x) & 0x7) << 24)
94 #define MPC512X_SCLPC_FIFO_ALARM(x)	((x) & 0x3ff)
95 
96 enum lpb_dev_portsize {
97 	LPB_DEV_PORTSIZE_UNDEFINED = 0,
98 	LPB_DEV_PORTSIZE_1_BYTE = 1,
99 	LPB_DEV_PORTSIZE_2_BYTES = 2,
100 	LPB_DEV_PORTSIZE_4_BYTES = 4,
101 	LPB_DEV_PORTSIZE_8_BYTES = 8
102 };
103 
104 enum mpc512x_lpbfifo_req_dir {
105 	MPC512X_LPBFIFO_REQ_DIR_READ,
106 	MPC512X_LPBFIFO_REQ_DIR_WRITE
107 };
108 
109 struct mpc512x_lpbfifo_request {
110 	phys_addr_t dev_phys_addr; /* physical address of some device on LPB */
111 	void *ram_virt_addr; /* virtual address of some region in RAM */
112 	u32 size;
113 	enum lpb_dev_portsize portsize;
114 	enum mpc512x_lpbfifo_req_dir dir;
115 	void (*callback)(struct mpc512x_lpbfifo_request *);
116 };
117 
118 int mpc512x_lpbfifo_submit(struct mpc512x_lpbfifo_request *req);
119 
120 #endif /* __ASM_POWERPC_MPC5121_H__ */
121