ddk750_chip.h

  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