xref: /linux/drivers/net/ethernet/intel/ice/ice_tspll.h (revision 8be4d31cb8aaeea27bde4b7ddb26e28a89062ebf)
1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* Copyright (c) 2025, Intel Corporation. */
3 
4 #ifndef _ICE_TSPLL_H_
5 #define _ICE_TSPLL_H_
6 
7 /**
8  * struct ice_tspll_params_e82x - E82X TSPLL parameters
9  * @refclk_pre_div: Reference clock pre-divisor
10  * @post_pll_div: Post PLL divisor
11  * @feedback_div: Feedback divisor
12  * @frac_n_div: Fractional divisor
13  *
14  * Clock Generation Unit parameters used to program the PLL based on the
15  * selected TIME_REF/TCXO frequency.
16  */
17 struct ice_tspll_params_e82x {
18 	u8 refclk_pre_div;
19 	u8 post_pll_div;
20 	u8 feedback_div;
21 	u32 frac_n_div;
22 };
23 
24 #define ICE_TSPLL_CK_REFCLKFREQ_E825		0x1F
25 #define ICE_TSPLL_NDIVRATIO_E825		5
26 #define ICE_TSPLL_FBDIV_INTGR_E825		256
27 
28 int ice_tspll_cfg_pps_out_e825c(struct ice_hw *hw, bool enable);
29 int ice_tspll_init(struct ice_hw *hw);
30 
31 #endif /* _ICE_TSPLL_H_ */
32