board/amcc/yucca/init.S

   1 /*
   2  * (C) Copyright 2007
   3  * Stefan Roese, DENX Software Engineering, sr@denx.de.
   4  *
   5  *  Copyright (C) 2002 Scott McNutt <smcnutt@artesyncp.com>
   6  *
   7  * SPDX-License-Identifier:     GPL-2.0+
   8  */
   9
  10 #include <ppc_asm.tmpl>
  11 #include <config.h>
  12 #include <asm/mmu.h>
  13 #include <asm/ppc4xx.h>
  14
  15 /**************************************************************************
  16  * TLB TABLE
  17  *
  18  * This table is used by the cpu boot code to setup the initial tlb
  19  * entries. Rather than make broad assumptions in the cpu source tree,
  20  * this table lets each board set things up however they like.
  21  *
  22  *  Pointer to the table is returned in r1
  23  *
  24  *************************************************************************/
  25
  26         .section .bootpg,"ax"
  27
  28 /**************************************************************************
  29  * TLB table for revA
  30  *************************************************************************/
  31         .globl tlbtabA
  32 tlbtabA:
  33         tlbtab_start
  34
  35         /*
  36          * BOOT_CS (FLASH) must be first. Before relocation SA_I can be off to use the
  37          * speed up boot process. It is patched after relocation to enable SA_I
  38          */
  39         tlbentry(0xff000000, SZ_16M, 0xff000000, 4, AC_RWX | SA_G)
  40
  41         /*
  42          * TLB entries for SDRAM are not needed on this platform.
  43          * They are dynamically generated in the SPD DDR(2) detection
  44          * routine.
  45          */
  46
  47         tlbentry(CONFIG_SYS_ISRAM_BASE, SZ_256K, 0x00000000, 4, AC_RWX | SA_I)
  48         tlbentry(CONFIG_SYS_FPGA_BASE, SZ_1K, 0xE2000000, 4,AC_RW | SA_I)
  49
  50         tlbentry(CONFIG_SYS_OPER_FLASH, SZ_16M, 0xE7000000, 4,AC_RWX | SA_IG)
  51         tlbentry(CONFIG_SYS_PERIPHERAL_BASE, SZ_4K, 0xF0000000, 4, AC_RW | SA_IG)
  52
  53         tlbentry(CONFIG_SYS_PCI_BASE, SZ_256M, 0x00000000, 0xC, AC_RW | SA_IG)
  54         tlbentry(CONFIG_SYS_PCI_MEMBASE, SZ_256M, 0x10000000, 0xC, AC_RW | SA_IG)
  55         tlbentry(CONFIG_SYS_PCIE_MEMBASE, SZ_256M, 0xB0000000, 0xD, AC_RW | SA_IG)
  56         tlbentry(CONFIG_SYS_PCIE_BASE, SZ_16K, 0x20000000, 0xC, AC_RW | SA_IG)
  57
  58         tlbentry(CONFIG_SYS_PCIE0_CFGBASE, SZ_16M, 0x40000000, 0xC, AC_RW | SA_IG)
  59         tlbentry(CONFIG_SYS_PCIE1_CFGBASE, SZ_16M, 0x80000000, 0xC, AC_RW | SA_IG)
  60         tlbentry(CONFIG_SYS_PCIE2_CFGBASE, SZ_16M, 0xC0000000, 0xC, AC_RW | SA_IG)
  61         tlbentry(CONFIG_SYS_PCIE0_XCFGBASE, SZ_1K, 0x50000000, 0xC, AC_RW | SA_IG)
  62         tlbentry(CONFIG_SYS_PCIE1_XCFGBASE, SZ_1K, 0x90000000, 0xC, AC_RW | SA_IG)
  63         tlbentry(CONFIG_SYS_PCIE2_XCFGBASE, SZ_1K, 0xD0000000, 0xC, AC_RW | SA_IG)
  64         tlbtab_end
  65
  66 /**************************************************************************
  67  * TLB table for revB
  68  *
  69  * Notice: revB of the 440SPe chip is very strict about PLB real addresses
  70  * and ranges to be mapped for config space: it seems to only work with
  71  * d_nnnn_nnnn range (hangs the core upon config transaction attempts when
  72  * set otherwise) while revA uses c_nnnn_nnnn.
  73  *************************************************************************/
  74         .globl tlbtabB
  75 tlbtabB:
  76         tlbtab_start
  77
  78         /*
  79          * BOOT_CS (FLASH) must be first. Before relocation SA_I can be off to use the
  80          * speed up boot process. It is patched after relocation to enable SA_I
  81          */
  82         tlbentry(0xff000000, SZ_16M, 0xff000000, 4, AC_RWX | SA_G)
  83
  84         /*
  85          * TLB entries for SDRAM are not needed on this platform.
  86          * They are dynamically generated in the SPD DDR(2) detection
  87          * routine.
  88          */
  89
  90         tlbentry(CONFIG_SYS_ISRAM_BASE, SZ_256K, 0x00000000, 4, AC_RWX | SA_I)
  91         tlbentry(CONFIG_SYS_FPGA_BASE, SZ_1K, 0xE2000000, 4,AC_RW | SA_I)
  92
  93         tlbentry(CONFIG_SYS_OPER_FLASH, SZ_16M, 0xE7000000, 4,AC_RWX | SA_IG)
  94         tlbentry(CONFIG_SYS_PERIPHERAL_BASE, SZ_4K, 0xF0000000, 4, AC_RW | SA_IG)
  95
  96         tlbentry(CONFIG_SYS_PCI_BASE, SZ_256M, 0x00000000, 0xC, AC_RW | SA_IG)
  97         tlbentry(CONFIG_SYS_PCI_MEMBASE, SZ_256M, 0x10000000, 0xC, AC_RW | SA_IG)
  98         tlbentry(CONFIG_SYS_PCIE_MEMBASE, SZ_256M, 0xB0000000, 0xD, AC_RW | SA_IG)
  99
 100         tlbentry(CONFIG_SYS_PCIE0_CFGBASE, SZ_16M, 0x00000000, 0xD, AC_RW | SA_IG)
 101         tlbentry(CONFIG_SYS_PCIE1_CFGBASE, SZ_16M, 0x20000000, 0xD, AC_RW | SA_IG)
 102         tlbentry(CONFIG_SYS_PCIE2_CFGBASE, SZ_16M, 0x40000000, 0xD, AC_RW | SA_IG)
 103         tlbentry(CONFIG_SYS_PCIE0_XCFGBASE, SZ_1K, 0x10000000, 0xD, AC_RW | SA_IG)
 104         tlbentry(CONFIG_SYS_PCIE1_XCFGBASE, SZ_1K, 0x30000000, 0xD, AC_RW | SA_IG)
 105         tlbentry(CONFIG_SYS_PCIE2_XCFGBASE, SZ_1K, 0x50000000, 0xD, AC_RW | SA_IG)
 106         tlbtab_end