1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef DDK750_CHIP_H__
3#define DDK750_CHIP_H__
4#define DEFAULT_INPUT_CLOCK 14318181 /* Default reference clock */
5#ifndef SM750LE_REVISION_ID
6#define SM750LE_REVISION_ID ((unsigned char)0xfe)
7#endif
8
9#include <linux/io.h>
10#include <linux/ioport.h>
11#include <linux/uaccess.h>
12
13extern void __iomem *mmio750;
14
15/* software control endianness */
16static inline u32 peek32(u32 addr)
17{
18	return readl(addr + mmio750);
19}
20
21static inline void poke32(u32 addr, u32 data)
22{
23	writel(data, addr + mmio750);
24}
25
26/* This is all the chips recognized by this library */
27enum logical_chip_type {
28	SM_UNKNOWN,
29	SM718,
30	SM750,
31	SM750LE,
32};
33
34enum clock_type {
35	MXCLK_PLL,
36	PRIMARY_PLL,
37	SECONDARY_PLL,
38	VGA0_PLL,
39	VGA1_PLL,
40};
41
42struct pll_value {
43	enum clock_type clock_type;
44	unsigned long input_freq; /* Input clock frequency to the PLL */
45
46	/* Use this when clockType = PANEL_PLL */
47	unsigned long M;
48	unsigned long N;
49	unsigned long OD;
50	unsigned long POD;
51};
52
53/* input struct to initChipParam() function */
54struct initchip_param {
55	/* Use power mode 0 or 1 */
56	unsigned short power_mode;
57
58	/*
59	 * Speed of main chip clock in MHz unit
60	 * 0 = keep the current clock setting
61	 * Others = the new main chip clock
62	 */
63	unsigned short chip_clock;
64
65	/*
66	 * Speed of memory clock in MHz unit
67	 * 0 = keep the current clock setting
68	 * Others = the new memory clock
69	 */
70	unsigned short mem_clock;
71
72	/*
73	 * Speed of master clock in MHz unit
74	 * 0 = keep the current clock setting
75	 * Others = the new master clock
76	 */
77	unsigned short master_clock;
78
79	/*
80	 * 0 = leave all engine state untouched.
81	 * 1 = make sure they are off: 2D, Overlay,
82	 * video alpha, alpha, hardware cursors
83	 */
84	unsigned short set_all_eng_off;
85
86	/*
87	 * 0 = Do not reset the memory controller
88	 * 1 = Reset the memory controller
89	 */
90	unsigned char reset_memory;
91
92	/* More initialization parameter can be added if needed */
93};
94
95enum logical_chip_type sm750_get_chip_type(void);
96void sm750_set_chip_type(unsigned short dev_id, u8 rev_id);
97unsigned int sm750_calc_pll_value(unsigned int request, struct  pll_value *pll);
98unsigned int sm750_format_pll_reg(struct pll_value *p_PLL);
99unsigned int ddk750_get_vm_size(void);
100int ddk750_init_hw(struct initchip_param *pinit_param);
101
102#endif
103