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
13 extern void __iomem *mmio750;
14
15 /* software control endianness */
peek32(u32 addr)16 static inline u32 peek32(u32 addr)
17 {
18 return readl(addr + mmio750);
19 }
20
poke32(u32 addr,u32 data)21 static 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 */
27 enum logical_chip_type {
28 SM_UNKNOWN,
29 SM718,
30 SM750,
31 SM750LE,
32 };
33
34 enum clock_type {
35 MXCLK_PLL,
36 PRIMARY_PLL,
37 SECONDARY_PLL,
38 VGA0_PLL,
39 VGA1_PLL,
40 };
41
42 struct pll_value {
43 enum clock_type clockType;
44 unsigned long inputFreq; /* 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 */
54 struct initchip_param {
55 /* Use power mode 0 or 1 */
56 unsigned short powerMode;
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 chipClock;
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 memClock;
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 masterClock;
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 setAllEngOff;
85
86 /*
87 * 0 = Do not reset the memory controller
88 * 1 = Reset the memory controller
89 */
90 unsigned char resetMemory;
91
92 /* More initialization parameter can be added if needed */
93 };
94
95 enum logical_chip_type sm750_get_chip_type(void);
96 void sm750_set_chip_type(unsigned short dev_id, u8 rev_id);
97 unsigned int sm750_calc_pll_value(unsigned int request, struct pll_value *pll);
98 unsigned int sm750_format_pll_reg(struct pll_value *pPLL);
99 unsigned int ddk750_get_vm_size(void);
100 int ddk750_init_hw(struct initchip_param *pinit_param);
101
102 #endif
103
