include/linux/ti-emif-sram.h

   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
  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 */