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linux
1/*
2 * TI AM33XX EMIF Routines
3 *
4 * Copyright (C) 2016-2017 Texas Instruments Inc.
5 * Dave Gerlach
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License as
9 * published by the Free Software Foundation version 2.
10 *
11 * This program is distributed "as is" WITHOUT ANY WARRANTY of any
12 * kind, whether express or implied; without even the implied warranty
13 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 */
16#ifndef __LINUX_TI_EMIF_H
17#define __LINUX_TI_EMIF_H
18
19#include <linux/kbuild.h>
20#include <linux/types.h>
21#ifndef __ASSEMBLY__
22
23struct emif_regs_amx3 {
24 u32 emif_sdcfg_val;
25 u32 emif_timing1_val;
26 u32 emif_timing2_val;
27 u32 emif_timing3_val;
28 u32 emif_ref_ctrl_val;
29 u32 emif_zqcfg_val;
30 u32 emif_pmcr_val;
31 u32 emif_pmcr_shdw_val;
32 u32 emif_rd_wr_level_ramp_ctrl;
33 u32 emif_rd_wr_exec_thresh;
34 u32 emif_cos_config;
35 u32 emif_priority_to_cos_mapping;
36 u32 emif_connect_id_serv_1_map;
37 u32 emif_connect_id_serv_2_map;
38 u32 emif_ocp_config_val;
39 u32 emif_lpddr2_nvm_tim;
40 u32 emif_lpddr2_nvm_tim_shdw;
41 u32 emif_dll_calib_ctrl_val;
42 u32 emif_dll_calib_ctrl_val_shdw;
43 u32 emif_ddr_phy_ctlr_1;
44 u32 emif_ext_phy_ctrl_vals[120];
45};
46
47struct ti_emif_pm_data {
48 void __iomem *ti_emif_base_addr_virt;
49 phys_addr_t ti_emif_base_addr_phys;
50 unsigned long ti_emif_sram_config;
51 struct emif_regs_amx3 *regs_virt;
52 phys_addr_t regs_phys;
53} __packed __aligned(8);
54
55struct ti_emif_pm_functions {
56 u32 save_context;
57 u32 restore_context;
58 u32 enter_sr;
59 u32 exit_sr;
60 u32 abort_sr;
61} __packed __aligned(8);
62
63static inline void ti_emif_asm_offsets(void)
64{
65 DEFINE(EMIF_SDCFG_VAL_OFFSET,
66 offsetof(struct emif_regs_amx3, emif_sdcfg_val));
67 DEFINE(EMIF_TIMING1_VAL_OFFSET,
68 offsetof(struct emif_regs_amx3, emif_timing1_val));
69 DEFINE(EMIF_TIMING2_VAL_OFFSET,
70 offsetof(struct emif_regs_amx3, emif_timing2_val));
71 DEFINE(EMIF_TIMING3_VAL_OFFSET,
72 offsetof(struct emif_regs_amx3, emif_timing3_val));
73 DEFINE(EMIF_REF_CTRL_VAL_OFFSET,
74 offsetof(struct emif_regs_amx3, emif_ref_ctrl_val));
75 DEFINE(EMIF_ZQCFG_VAL_OFFSET,
76 offsetof(struct emif_regs_amx3, emif_zqcfg_val));
77 DEFINE(EMIF_PMCR_VAL_OFFSET,
78 offsetof(struct emif_regs_amx3, emif_pmcr_val));
79 DEFINE(EMIF_PMCR_SHDW_VAL_OFFSET,
80 offsetof(struct emif_regs_amx3, emif_pmcr_shdw_val));
81 DEFINE(EMIF_RD_WR_LEVEL_RAMP_CTRL_OFFSET,
82 offsetof(struct emif_regs_amx3, emif_rd_wr_level_ramp_ctrl));
83 DEFINE(EMIF_RD_WR_EXEC_THRESH_OFFSET,
84 offsetof(struct emif_regs_amx3, emif_rd_wr_exec_thresh));
85 DEFINE(EMIF_COS_CONFIG_OFFSET,
86 offsetof(struct emif_regs_amx3, emif_cos_config));
87 DEFINE(EMIF_PRIORITY_TO_COS_MAPPING_OFFSET,
88 offsetof(struct emif_regs_amx3, emif_priority_to_cos_mapping));
89 DEFINE(EMIF_CONNECT_ID_SERV_1_MAP_OFFSET,
90 offsetof(struct emif_regs_amx3, emif_connect_id_serv_1_map));
91 DEFINE(EMIF_CONNECT_ID_SERV_2_MAP_OFFSET,
92 offsetof(struct emif_regs_amx3, emif_connect_id_serv_2_map));
93 DEFINE(EMIF_OCP_CONFIG_VAL_OFFSET,
94 offsetof(struct emif_regs_amx3, emif_ocp_config_val));
95 DEFINE(EMIF_LPDDR2_NVM_TIM_OFFSET,
96 offsetof(struct emif_regs_amx3, emif_lpddr2_nvm_tim));
97 DEFINE(EMIF_LPDDR2_NVM_TIM_SHDW_OFFSET,
98 offsetof(struct emif_regs_amx3, emif_lpddr2_nvm_tim_shdw));
99 DEFINE(EMIF_DLL_CALIB_CTRL_VAL_OFFSET,
100 offsetof(struct emif_regs_amx3, emif_dll_calib_ctrl_val));
101 DEFINE(EMIF_DLL_CALIB_CTRL_VAL_SHDW_OFFSET,
102 offsetof(struct emif_regs_amx3, emif_dll_calib_ctrl_val_shdw));
103 DEFINE(EMIF_DDR_PHY_CTLR_1_OFFSET,
104 offsetof(struct emif_regs_amx3, emif_ddr_phy_ctlr_1));
105 DEFINE(EMIF_EXT_PHY_CTRL_VALS_OFFSET,
106 offsetof(struct emif_regs_amx3, emif_ext_phy_ctrl_vals));
107 DEFINE(EMIF_REGS_AMX3_SIZE, sizeof(struct emif_regs_amx3));
108
109 BLANK();
110
111 DEFINE(EMIF_PM_BASE_ADDR_VIRT_OFFSET,
112 offsetof(struct ti_emif_pm_data, ti_emif_base_addr_virt));
113 DEFINE(EMIF_PM_BASE_ADDR_PHYS_OFFSET,
114 offsetof(struct ti_emif_pm_data, ti_emif_base_addr_phys));
115 DEFINE(EMIF_PM_CONFIG_OFFSET,
116 offsetof(struct ti_emif_pm_data, ti_emif_sram_config));
117 DEFINE(EMIF_PM_REGS_VIRT_OFFSET,
118 offsetof(struct ti_emif_pm_data, regs_virt));
119 DEFINE(EMIF_PM_REGS_PHYS_OFFSET,
120 offsetof(struct ti_emif_pm_data, regs_phys));
121 DEFINE(EMIF_PM_DATA_SIZE, sizeof(struct ti_emif_pm_data));
122
123 BLANK();
124
125 DEFINE(EMIF_PM_SAVE_CONTEXT_OFFSET,
126 offsetof(struct ti_emif_pm_functions, save_context));
127 DEFINE(EMIF_PM_RESTORE_CONTEXT_OFFSET,
128 offsetof(struct ti_emif_pm_functions, restore_context));
129 DEFINE(EMIF_PM_ENTER_SR_OFFSET,
130 offsetof(struct ti_emif_pm_functions, enter_sr));
131 DEFINE(EMIF_PM_EXIT_SR_OFFSET,
132 offsetof(struct ti_emif_pm_functions, exit_sr));
133 DEFINE(EMIF_PM_ABORT_SR_OFFSET,
134 offsetof(struct ti_emif_pm_functions, abort_sr));
135 DEFINE(EMIF_PM_FUNCTIONS_SIZE, sizeof(struct ti_emif_pm_functions));
136}
137
138struct gen_pool;
139
140int ti_emif_copy_pm_function_table(struct gen_pool *sram_pool, void *dst);
141int ti_emif_get_mem_type(void);
142
143#endif
144#endif /* __LINUX_TI_EMIF_H */