arch/powerpc/include/asm/reg_8xx.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * Contains register definitions common to PowerPC 8xx CPUs.  Notice
   4  */
   5 #ifndef _ASM_POWERPC_REG_8xx_H
   6 #define _ASM_POWERPC_REG_8xx_H
   7
   8 /* Cache control on the MPC8xx is provided through some additional
   9  * special purpose registers.
  10  */
  11 #define SPRN_IC_CST     560     /* Instruction cache control/status */
  12 #define SPRN_IC_ADR     561     /* Address needed for some commands */
  13 #define SPRN_IC_DAT     562     /* Read-only data register */
  14 #define SPRN_DC_CST     568     /* Data cache control/status */
  15 #define SPRN_DC_ADR     569     /* Address needed for some commands */
  16 #define SPRN_DC_DAT     570     /* Read-only data register */
  17
  18 /* Misc Debug */
  19 #define SPRN_DPDR       630
  20 #define SPRN_MI_CAM     816
  21 #define SPRN_MI_RAM0    817
  22 #define SPRN_MI_RAM1    818
  23 #define SPRN_MD_CAM     824
  24 #define SPRN_MD_RAM0    825
  25 #define SPRN_MD_RAM1    826
  26
  27 /* Special MSR manipulation registers */
  28 #define SPRN_EIE        80      /* External interrupt enable (EE=1, RI=1) */
  29 #define SPRN_EID        81      /* External interrupt disable (EE=0, RI=1) */
  30 #define SPRN_NRI        82      /* Non recoverable interrupt (EE=0, RI=0) */
  31
  32 /* Debug registers */
  33 #define SPRN_CMPA       144
  34 #define SPRN_COUNTA     150
  35 #define SPRN_CMPE       152
  36 #define SPRN_CMPF       153
  37 #define SPRN_LCTRL1     156
  38 #define SPRN_LCTRL2     157
  39 #ifdef CONFIG_PPC_8xx
  40 #define SPRN_ICTRL      158
  41 #endif
  42 #define SPRN_BAR        159
  43
  44 /* Commands.  Only the first few are available to the instruction cache.
  45 */
  46 #define IDC_ENABLE      0x02000000      /* Cache enable */
  47 #define IDC_DISABLE     0x04000000      /* Cache disable */
  48 #define IDC_LDLCK       0x06000000      /* Load and lock */
  49 #define IDC_UNLINE      0x08000000      /* Unlock line */
  50 #define IDC_UNALL       0x0a000000      /* Unlock all */
  51 #define IDC_INVALL      0x0c000000      /* Invalidate all */
  52
  53 #define DC_FLINE        0x0e000000      /* Flush data cache line */
  54 #define DC_SFWT         0x01000000      /* Set forced writethrough mode */
  55 #define DC_CFWT         0x03000000      /* Clear forced writethrough mode */
  56 #define DC_SLES         0x05000000      /* Set little endian swap mode */
  57 #define DC_CLES         0x07000000      /* Clear little endian swap mode */
  58
  59 /* Status.
  60 */
  61 #define IDC_ENABLED     0x80000000      /* Cache is enabled */
  62 #define IDC_CERR1       0x00200000      /* Cache error 1 */
  63 #define IDC_CERR2       0x00100000      /* Cache error 2 */
  64 #define IDC_CERR3       0x00080000      /* Cache error 3 */
  65
  66 #define DC_DFWT         0x40000000      /* Data cache is forced write through */
  67 #define DC_LES          0x20000000      /* Caches are little endian mode */
  68
  69 #endif /* _ASM_POWERPC_REG_8xx_H */