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 */ 16 static inline u32 peek32(u32 addr) 17 { 18 return readl(addr + mmio750); 19 } 20 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 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 */ 54 struct 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 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 *p_PLL); 99 unsigned int ddk750_get_vm_size(void); 100 int ddk750_init_hw(struct initchip_param *pinit_param); 101 102 #endif 103