clk/baikal-t1/ccu-div.h

1 /* SPDX-License-Identifier: GPL-2.0-only */
5  * Baikal-T1 CCU Dividers interface driver
10 #include <linux/clk-provider.h>
17  * CCU Divider private clock IDs
21 #define CCU_SYS_SATA_CLK		-1
22 #define CCU_SYS_XGMAC_CLK		-2
25  * CCU Divider private flags
26  * @CCU_DIV_BASIC: Basic divider clock required by the kernel as early as
28  * @CCU_DIV_SKIP_ONE: Due to some reason divider can't be set to 1.
30  * @CCU_DIV_SKIP_ONE_TO_THREE: For some reason divider can't be within [1,3].
32  * @CCU_DIV_LOCK_SHIFTED: Find lock-bit at non-standard position.
42  * enum ccu_div_type - CCU Divider types
43  * @CCU_DIV_VAR: Clocks gate with variable divider.
44  * @CCU_DIV_GATE: Clocks gate with fixed divider.
45  * @CCU_DIV_BUF: Clock gate with no divider.
46  * @CCU_DIV_FIXED: Ungateable clock with fixed divider.
56  * struct ccu_div_init_data - CCU Divider initialization data
60  * @base: Divider register base address with respect to the sys_regs base.
61  * @sys_regs: Baikal-T1 System Controller registers map.
63  * @type: CCU divider type (variable, fixed with and without gate).
64  * @width: Divider width if it's variable.
65  * @divider: Divider fixed value.
66  * @flags: CCU Divider clock flags.
67  * @features: CCU Divider private features.
79 		unsigned int divider;  member
86  * struct ccu_div - CCU Divider descriptor
87  * @hw: clk_hw of the divider.
89  * @reg_ctl: Divider control register base address.
90  * @sys_regs: Baikal-T1 System Controller registers map.
91  * @lock: Divider state change spin-lock.
92  * @mask: Divider field mask.
93  * @divider: Divider fixed value.
94  * @flags: Divider clock flags.
95  * @features: CCU Divider private features.
105 		unsigned int divider;  member
114 	return div ? &div->hw : NULL;  in ccu_div_get_clk_hw()