arch/arm/plat-omap/include/plat/sram.h

   1 /*
   2  * arch/arm/plat-omap/include/mach/sram.h
   3  *
   4  * Interface for functions that need to be run in internal SRAM
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  */
  10
  11 #ifndef __ARCH_ARM_OMAP_SRAM_H
  12 #define __ARCH_ARM_OMAP_SRAM_H
  13
  14 #ifndef __ASSEMBLY__
  15 extern void * omap_sram_push(void * start, unsigned long size);
  16 extern void omap_sram_reprogram_clock(u32 dpllctl, u32 ckctl);
  17
  18 extern void omap2_sram_ddr_init(u32 *slow_dll_ctrl, u32 fast_dll_ctrl,
  19                                 u32 base_cs, u32 force_unlock);
  20 extern void omap2_sram_reprogram_sdrc(u32 perf_level, u32 dll_val,
  21                                       u32 mem_type);
  22 extern u32 omap2_set_prcm(u32 dpll_ctrl_val, u32 sdrc_rfr_val, int bypass);
  23
  24 extern u32 omap3_configure_core_dpll(
  25                         u32 m2, u32 unlock_dll, u32 f, u32 inc,
  26                         u32 sdrc_rfr_ctrl_0, u32 sdrc_actim_ctrl_a_0,
  27                         u32 sdrc_actim_ctrl_b_0, u32 sdrc_mr_0,
  28                         u32 sdrc_rfr_ctrl_1, u32 sdrc_actim_ctrl_a_1,
  29                         u32 sdrc_actim_ctrl_b_1, u32 sdrc_mr_1);
  30 extern void omap3_sram_restore_context(void);
  31
  32 /* Do not use these */
  33 extern void omap1_sram_reprogram_clock(u32 ckctl, u32 dpllctl);
  34 extern unsigned long omap1_sram_reprogram_clock_sz;
  35
  36 extern void omap24xx_sram_reprogram_clock(u32 ckctl, u32 dpllctl);
  37 extern unsigned long omap24xx_sram_reprogram_clock_sz;
  38
  39 extern void omap242x_sram_ddr_init(u32 *slow_dll_ctrl, u32 fast_dll_ctrl,
  40                                                 u32 base_cs, u32 force_unlock);
  41 extern unsigned long omap242x_sram_ddr_init_sz;
  42
  43 extern u32 omap242x_sram_set_prcm(u32 dpll_ctrl_val, u32 sdrc_rfr_val,
  44                                                 int bypass);
  45 extern unsigned long omap242x_sram_set_prcm_sz;
  46
  47 extern void omap242x_sram_reprogram_sdrc(u32 perf_level, u32 dll_val,
  48                                                 u32 mem_type);
  49 extern unsigned long omap242x_sram_reprogram_sdrc_sz;
  50
  51
  52 extern void omap243x_sram_ddr_init(u32 *slow_dll_ctrl, u32 fast_dll_ctrl,
  53                                                 u32 base_cs, u32 force_unlock);
  54 extern unsigned long omap243x_sram_ddr_init_sz;
  55
  56 extern u32 omap243x_sram_set_prcm(u32 dpll_ctrl_val, u32 sdrc_rfr_val,
  57                                                 int bypass);
  58 extern unsigned long omap243x_sram_set_prcm_sz;
  59
  60 extern void omap243x_sram_reprogram_sdrc(u32 perf_level, u32 dll_val,
  61                                                 u32 mem_type);
  62 extern unsigned long omap243x_sram_reprogram_sdrc_sz;
  63
  64 extern u32 omap3_sram_configure_core_dpll(
  65                         u32 m2, u32 unlock_dll, u32 f, u32 inc,
  66                         u32 sdrc_rfr_ctrl_0, u32 sdrc_actim_ctrl_a_0,
  67                         u32 sdrc_actim_ctrl_b_0, u32 sdrc_mr_0,
  68                         u32 sdrc_rfr_ctrl_1, u32 sdrc_actim_ctrl_a_1,
  69                         u32 sdrc_actim_ctrl_b_1, u32 sdrc_mr_1);
  70 extern unsigned long omap3_sram_configure_core_dpll_sz;
  71
  72 #ifdef CONFIG_PM
  73 extern void omap_push_sram_idle(void);
  74 #else
  75 static inline void omap_push_sram_idle(void) {}
  76 #endif /* CONFIG_PM */
  77
  78 #endif /* __ASSEMBLY__ */
  79
  80 /*
  81  * OMAP2+: define the SRAM PA addresses.
  82  * Used by the SRAM management code and the idle sleep code.
  83  */
  84 #define OMAP2_SRAM_PA           0x40200000
  85 #define OMAP3_SRAM_PA           0x40200000
  86 #define OMAP4_SRAM_PA           0x40300000
  87
  88 #endif