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 #include <asm/fncpy.h>
  16
  17 extern void *omap_sram_push_address(unsigned long size);
  18
  19 /* Macro to push a function to the internal SRAM, using the fncpy API */
  20 #define omap_sram_push(funcp, size) ({                          \
  21         typeof(&(funcp)) _res = NULL;                           \
  22         void *_sram_address = omap_sram_push_address(size);     \
  23         if (_sram_address)                                      \
  24                 _res = fncpy(_sram_address, &(funcp), size);    \
  25         _res;                                                   \
  26 })
  27
  28 extern void omap_sram_reprogram_clock(u32 dpllctl, u32 ckctl);
  29
  30 extern void omap2_sram_ddr_init(u32 *slow_dll_ctrl, u32 fast_dll_ctrl,
  31                                 u32 base_cs, u32 force_unlock);
  32 extern void omap2_sram_reprogram_sdrc(u32 perf_level, u32 dll_val,
  33                                       u32 mem_type);
  34 extern u32 omap2_set_prcm(u32 dpll_ctrl_val, u32 sdrc_rfr_val, int bypass);
  35
  36 extern u32 omap3_configure_core_dpll(
  37                         u32 m2, u32 unlock_dll, u32 f, u32 inc,
  38                         u32 sdrc_rfr_ctrl_0, u32 sdrc_actim_ctrl_a_0,
  39                         u32 sdrc_actim_ctrl_b_0, u32 sdrc_mr_0,
  40                         u32 sdrc_rfr_ctrl_1, u32 sdrc_actim_ctrl_a_1,
  41                         u32 sdrc_actim_ctrl_b_1, u32 sdrc_mr_1);
  42 extern void omap3_sram_restore_context(void);
  43
  44 /* Do not use these */
  45 extern void omap1_sram_reprogram_clock(u32 ckctl, u32 dpllctl);
  46 extern unsigned long omap1_sram_reprogram_clock_sz;
  47
  48 extern void omap24xx_sram_reprogram_clock(u32 ckctl, u32 dpllctl);
  49 extern unsigned long omap24xx_sram_reprogram_clock_sz;
  50
  51 extern void omap242x_sram_ddr_init(u32 *slow_dll_ctrl, u32 fast_dll_ctrl,
  52                                                 u32 base_cs, u32 force_unlock);
  53 extern unsigned long omap242x_sram_ddr_init_sz;
  54
  55 extern u32 omap242x_sram_set_prcm(u32 dpll_ctrl_val, u32 sdrc_rfr_val,
  56                                                 int bypass);
  57 extern unsigned long omap242x_sram_set_prcm_sz;
  58
  59 extern void omap242x_sram_reprogram_sdrc(u32 perf_level, u32 dll_val,
  60                                                 u32 mem_type);
  61 extern unsigned long omap242x_sram_reprogram_sdrc_sz;
  62
  63
  64 extern void omap243x_sram_ddr_init(u32 *slow_dll_ctrl, u32 fast_dll_ctrl,
  65                                                 u32 base_cs, u32 force_unlock);
  66 extern unsigned long omap243x_sram_ddr_init_sz;
  67
  68 extern u32 omap243x_sram_set_prcm(u32 dpll_ctrl_val, u32 sdrc_rfr_val,
  69                                                 int bypass);
  70 extern unsigned long omap243x_sram_set_prcm_sz;
  71
  72 extern void omap243x_sram_reprogram_sdrc(u32 perf_level, u32 dll_val,
  73                                                 u32 mem_type);
  74 extern unsigned long omap243x_sram_reprogram_sdrc_sz;
  75
  76 extern u32 omap3_sram_configure_core_dpll(
  77                         u32 m2, u32 unlock_dll, u32 f, u32 inc,
  78                         u32 sdrc_rfr_ctrl_0, u32 sdrc_actim_ctrl_a_0,
  79                         u32 sdrc_actim_ctrl_b_0, u32 sdrc_mr_0,
  80                         u32 sdrc_rfr_ctrl_1, u32 sdrc_actim_ctrl_a_1,
  81                         u32 sdrc_actim_ctrl_b_1, u32 sdrc_mr_1);
  82 extern unsigned long omap3_sram_configure_core_dpll_sz;
  83
  84 #ifdef CONFIG_PM
  85 extern void omap_push_sram_idle(void);
  86 #else
  87 static inline void omap_push_sram_idle(void) {}
  88 #endif /* CONFIG_PM */
  89
  90 #endif /* __ASSEMBLY__ */
  91
  92 /*
  93  * OMAP2+: define the SRAM PA addresses.
  94  * Used by the SRAM management code and the idle sleep code.
  95  */
  96 #define OMAP2_SRAM_PA           0x40200000
  97 #define OMAP3_SRAM_PA           0x40200000
  98 #ifdef CONFIG_OMAP4_ERRATA_I688
  99 #define OMAP4_SRAM_PA           0x40304000
 100 #define OMAP4_SRAM_VA           0xfe404000
 101 #else
 102 #define OMAP4_SRAM_PA           0x40300000
 103 #endif
 104 #endif