include/linux/ti-emif-sram.h

   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
  23 struct 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
  47 struct 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
  55 struct 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
  63 struct gen_pool;
  64
  65 int ti_emif_copy_pm_function_table(struct gen_pool *sram_pool, void *dst);
  66 int ti_emif_get_mem_type(void);
  67
  68 #endif
  69 #endif /* __LINUX_TI_EMIF_H */