1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3 * TI AM33XX EMIF Routines
4 *
5 * Copyright (C) 2016-2017 Texas Instruments Inc.
6 * Dave Gerlach
7 */
8 #ifndef __LINUX_TI_EMIF_H
9 #define __LINUX_TI_EMIF_H
10
11 #include <linux/kbuild.h>
12 #include <linux/types.h>
13 #ifndef __ASSEMBLY__
14
15 struct emif_regs_amx3 {
16 u32 emif_sdcfg_val;
17 u32 emif_timing1_val;
18 u32 emif_timing2_val;
19 u32 emif_timing3_val;
20 u32 emif_ref_ctrl_val;
21 u32 emif_zqcfg_val;
22 u32 emif_pmcr_val;
23 u32 emif_pmcr_shdw_val;
24 u32 emif_rd_wr_level_ramp_ctrl;
25 u32 emif_rd_wr_exec_thresh;
26 u32 emif_cos_config;
27 u32 emif_priority_to_cos_mapping;
28 u32 emif_connect_id_serv_1_map;
29 u32 emif_connect_id_serv_2_map;
30 u32 emif_ocp_config_val;
31 u32 emif_lpddr2_nvm_tim;
32 u32 emif_lpddr2_nvm_tim_shdw;
33 u32 emif_dll_calib_ctrl_val;
34 u32 emif_dll_calib_ctrl_val_shdw;
35 u32 emif_ddr_phy_ctlr_1;
36 u32 emif_ext_phy_ctrl_vals[120];
37 };
38
39 struct ti_emif_pm_data {
40 void __iomem *ti_emif_base_addr_virt;
41 phys_addr_t ti_emif_base_addr_phys;
42 unsigned long ti_emif_sram_config;
43 struct emif_regs_amx3 *regs_virt;
44 phys_addr_t regs_phys;
45 } __packed __aligned(8);
46
47 struct ti_emif_pm_functions {
48 u32 save_context;
49 u32 restore_context;
50 u32 run_hw_leveling;
51 u32 enter_sr;
52 u32 exit_sr;
53 u32 abort_sr;
54 } __packed __aligned(8);
55
ti_emif_asm_offsets(void)56 static inline void ti_emif_asm_offsets(void)
57 {
58 DEFINE(EMIF_SDCFG_VAL_OFFSET,
59 offsetof(struct emif_regs_amx3, emif_sdcfg_val));
60 DEFINE(EMIF_TIMING1_VAL_OFFSET,
61 offsetof(struct emif_regs_amx3, emif_timing1_val));
62 DEFINE(EMIF_TIMING2_VAL_OFFSET,
63 offsetof(struct emif_regs_amx3, emif_timing2_val));
64 DEFINE(EMIF_TIMING3_VAL_OFFSET,
65 offsetof(struct emif_regs_amx3, emif_timing3_val));
66 DEFINE(EMIF_REF_CTRL_VAL_OFFSET,
67 offsetof(struct emif_regs_amx3, emif_ref_ctrl_val));
68 DEFINE(EMIF_ZQCFG_VAL_OFFSET,
69 offsetof(struct emif_regs_amx3, emif_zqcfg_val));
70 DEFINE(EMIF_PMCR_VAL_OFFSET,
71 offsetof(struct emif_regs_amx3, emif_pmcr_val));
72 DEFINE(EMIF_PMCR_SHDW_VAL_OFFSET,
73 offsetof(struct emif_regs_amx3, emif_pmcr_shdw_val));
74 DEFINE(EMIF_RD_WR_LEVEL_RAMP_CTRL_OFFSET,
75 offsetof(struct emif_regs_amx3, emif_rd_wr_level_ramp_ctrl));
76 DEFINE(EMIF_RD_WR_EXEC_THRESH_OFFSET,
77 offsetof(struct emif_regs_amx3, emif_rd_wr_exec_thresh));
78 DEFINE(EMIF_COS_CONFIG_OFFSET,
79 offsetof(struct emif_regs_amx3, emif_cos_config));
80 DEFINE(EMIF_PRIORITY_TO_COS_MAPPING_OFFSET,
81 offsetof(struct emif_regs_amx3, emif_priority_to_cos_mapping));
82 DEFINE(EMIF_CONNECT_ID_SERV_1_MAP_OFFSET,
83 offsetof(struct emif_regs_amx3, emif_connect_id_serv_1_map));
84 DEFINE(EMIF_CONNECT_ID_SERV_2_MAP_OFFSET,
85 offsetof(struct emif_regs_amx3, emif_connect_id_serv_2_map));
86 DEFINE(EMIF_OCP_CONFIG_VAL_OFFSET,
87 offsetof(struct emif_regs_amx3, emif_ocp_config_val));
88 DEFINE(EMIF_LPDDR2_NVM_TIM_OFFSET,
89 offsetof(struct emif_regs_amx3, emif_lpddr2_nvm_tim));
90 DEFINE(EMIF_LPDDR2_NVM_TIM_SHDW_OFFSET,
91 offsetof(struct emif_regs_amx3, emif_lpddr2_nvm_tim_shdw));
92 DEFINE(EMIF_DLL_CALIB_CTRL_VAL_OFFSET,
93 offsetof(struct emif_regs_amx3, emif_dll_calib_ctrl_val));
94 DEFINE(EMIF_DLL_CALIB_CTRL_VAL_SHDW_OFFSET,
95 offsetof(struct emif_regs_amx3, emif_dll_calib_ctrl_val_shdw));
96 DEFINE(EMIF_DDR_PHY_CTLR_1_OFFSET,
97 offsetof(struct emif_regs_amx3, emif_ddr_phy_ctlr_1));
98 DEFINE(EMIF_EXT_PHY_CTRL_VALS_OFFSET,
99 offsetof(struct emif_regs_amx3, emif_ext_phy_ctrl_vals));
100 DEFINE(EMIF_REGS_AMX3_SIZE, sizeof(struct emif_regs_amx3));
101
102 BLANK();
103
104 DEFINE(EMIF_PM_BASE_ADDR_VIRT_OFFSET,
105 offsetof(struct ti_emif_pm_data, ti_emif_base_addr_virt));
106 DEFINE(EMIF_PM_BASE_ADDR_PHYS_OFFSET,
107 offsetof(struct ti_emif_pm_data, ti_emif_base_addr_phys));
108 DEFINE(EMIF_PM_CONFIG_OFFSET,
109 offsetof(struct ti_emif_pm_data, ti_emif_sram_config));
110 DEFINE(EMIF_PM_REGS_VIRT_OFFSET,
111 offsetof(struct ti_emif_pm_data, regs_virt));
112 DEFINE(EMIF_PM_REGS_PHYS_OFFSET,
113 offsetof(struct ti_emif_pm_data, regs_phys));
114 DEFINE(EMIF_PM_DATA_SIZE, sizeof(struct ti_emif_pm_data));
115
116 BLANK();
117
118 DEFINE(EMIF_PM_SAVE_CONTEXT_OFFSET,
119 offsetof(struct ti_emif_pm_functions, save_context));
120 DEFINE(EMIF_PM_RESTORE_CONTEXT_OFFSET,
121 offsetof(struct ti_emif_pm_functions, restore_context));
122 DEFINE(EMIF_PM_RUN_HW_LEVELING,
123 offsetof(struct ti_emif_pm_functions, run_hw_leveling));
124 DEFINE(EMIF_PM_ENTER_SR_OFFSET,
125 offsetof(struct ti_emif_pm_functions, enter_sr));
126 DEFINE(EMIF_PM_EXIT_SR_OFFSET,
127 offsetof(struct ti_emif_pm_functions, exit_sr));
128 DEFINE(EMIF_PM_ABORT_SR_OFFSET,
129 offsetof(struct ti_emif_pm_functions, abort_sr));
130 DEFINE(EMIF_PM_FUNCTIONS_SIZE, sizeof(struct ti_emif_pm_functions));
131 }
132
133 struct gen_pool;
134
135 int ti_emif_copy_pm_function_table(struct gen_pool *sram_pool, void *dst);
136 int ti_emif_get_mem_type(void);
137
138 #endif
139 #endif /* __LINUX_TI_EMIF_H */
140