board/amcc/yosemite/init.S

   1 /*
   2  * SPDX-License-Identifier:     GPL-2.0+
   3 */
   4
   5 #include <asm-offsets.h>
   6 #include <ppc_asm.tmpl>
   7 #include <asm/mmu.h>
   8 #include <config.h>
   9
  10 /**************************************************************************
  11  * TLB TABLE
  12  *
  13  * This table is used by the cpu boot code to setup the initial tlb
  14  * entries. Rather than make broad assumptions in the cpu source tree,
  15  * this table lets each board set things up however they like.
  16  *
  17  *  Pointer to the table is returned in r1
  18  *
  19  *************************************************************************/
  20
  21     .section .bootpg,"ax"
  22     .globl tlbtab
  23
  24 tlbtab:
  25     tlbtab_start
  26
  27     /*
  28      * BOOT_CS (FLASH) must be first. Before relocation SA_I can be off to use the
  29      * speed up boot process. It is patched after relocation to enable SA_I
  30      */
  31     tlbentry( CONFIG_SYS_BOOT_BASE_ADDR, SZ_256M, CONFIG_SYS_BOOT_BASE_ADDR, 0, AC_RWX | SA_G/*|SA_I*/)
  32
  33     /* TLB-entry for init-ram in dcache (SA_I must be turned off!) */
  34     tlbentry( CONFIG_SYS_INIT_RAM_ADDR, SZ_64K, CONFIG_SYS_INIT_RAM_ADDR, 0, AC_RWX | SA_G )
  35
  36     tlbentry( CONFIG_SYS_SDRAM_BASE, SZ_256M, CONFIG_SYS_SDRAM_BASE, 0, AC_RWX | SA_IG )
  37     tlbentry( CONFIG_SYS_PCI_BASE, SZ_256M, CONFIG_SYS_PCI_BASE, 0, AC_RW | SA_IG )
  38     tlbentry( CONFIG_SYS_NVRAM_BASE_ADDR, SZ_256M, CONFIG_SYS_NVRAM_BASE_ADDR, 0, AC_RWX | SA_W|SA_I )
  39
  40     /* PCI */
  41     tlbentry( CONFIG_SYS_PCI_MEMBASE, SZ_256M, CONFIG_SYS_PCI_MEMBASE, 0, AC_RW | SA_IG )
  42     tlbentry( CONFIG_SYS_PCI_MEMBASE1, SZ_256M, CONFIG_SYS_PCI_MEMBASE1, 0, AC_RW | SA_IG )
  43     tlbentry( CONFIG_SYS_PCI_MEMBASE2, SZ_256M, CONFIG_SYS_PCI_MEMBASE2, 0, AC_RW | SA_IG )
  44     tlbentry( CONFIG_SYS_PCI_MEMBASE3, SZ_256M, CONFIG_SYS_PCI_MEMBASE3, 0, AC_RW | SA_IG )
  45
  46     /* USB 2.0 Device */
  47     tlbentry( CONFIG_SYS_USB_DEVICE, SZ_1K, 0x50000000, 0, AC_RW | SA_IG )
  48
  49     tlbtab_end