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/*
* Copyright 2007 Freescale Semiconductor, Inc.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <ppc_asm.tmpl>
#include <ppc_defs.h>
#include <asm/cache.h>
#include <asm/mmu.h>
#include <config.h>
#include <mpc85xx.h>
#define LAWAR_TRGT_PCI1 0x00000000
#define LAWAR_TRGT_PCIE1 0x00200000
#define LAWAR_TRGT_PCIE2 0x00100000
#define LAWAR_TRGT_PCIE3 0x00300000
#define LAWAR_TRGT_LBC 0x00400000
#define LAWAR_TRGT_DDR 0x00f00000
/*
* TLB0 and TLB1 Entries
*
* Out of reset, TLB1's Entry 0 maps the highest 4K for CCSRBAR.
* However, CCSRBAR is then relocated to CFG_CCSRBAR right after
* these TLB entries are established.
*
* The TLB entries for DDR are dynamically setup in spd_sdram()
* and use TLB1 Entries 8 through 15 as needed according to the
* size of DDR memory.
*
* MAS0: tlbsel, esel, nv
* MAS1: valid, iprot, tid, ts, tsize
* MAS2: epn, sharen, x0, x1, w, i, m, g, e
* MAS3: rpn, u0-u3, ux, sx, uw, sw, ur, sr
*/
#define entry_start \
mflr r1 ; \
bl 0f ;
#define entry_end \
0: mflr r0 ; \
mtlr r1 ; \
blr ;
.section .bootpg, "ax"
.globl tlb1_entry
tlb1_entry:
entry_start
/*
* Number of TLB0 and TLB1 entries in the following table
*/
.long (2f-1f)/16
1:
/*
* TLB0 4K Non-cacheable, guarded
* 0xff700000 4K Initial CCSRBAR mapping
*
* This ends up at a TLB0 Index==0 entry, and must not collide
* with other TLB0 Entries.
*/
.long TLB1_MAS0(0, 0, 0)
.long TLB1_MAS1(1, 0, 0, 0, 0)
.long TLB1_MAS2(E500_TLB_EPN(CFG_CCSRBAR_DEFAULT), 0,0,0,0,1,0,1,0)
.long TLB1_MAS3(E500_TLB_RPN(CFG_CCSRBAR_DEFAULT), 0,0,0,0,0,1,0,1,0,1)
/*
* TLB0 16K Cacheable, guarded
* Temporary Global data for initialization
*
* Use four 4K TLB0 entries. These entries must be cacheable
* as they provide the bootstrap memory before the memory
* controler and real memory have been configured.
*
* These entries end up at TLB0 Indicies 0x10, 0x14, 0x18 and 0x1c,
* and must not collide with other TLB0 entries.
*/
.long TLB1_MAS0(0, 0, 0)
.long TLB1_MAS1(1, 0, 0, 0, 0)
.long TLB1_MAS2(E500_TLB_EPN(CFG_INIT_RAM_ADDR),
0,0,0,0,0,0,1,0)
.long TLB1_MAS3(E500_TLB_RPN(CFG_INIT_RAM_ADDR),
0,0,0,0,0,1,0,1,0,1)
.long TLB1_MAS0(0, 0, 0)
.long TLB1_MAS1(1, 0, 0, 0, 0)
.long TLB1_MAS2(E500_TLB_EPN(CFG_INIT_RAM_ADDR + 4 * 1024),
0,0,0,0,0,0,1,0)
.long TLB1_MAS3(E500_TLB_RPN(CFG_INIT_RAM_ADDR + 4 * 1024),
0,0,0,0,0,1,0,1,0,1)
.long TLB1_MAS0(0, 0, 0)
.long TLB1_MAS1(1, 0, 0, 0, 0)
.long TLB1_MAS2(E500_TLB_EPN(CFG_INIT_RAM_ADDR + 8 * 1024),
0,0,0,0,0,0,1,0)
.long TLB1_MAS3(E500_TLB_RPN(CFG_INIT_RAM_ADDR + 8 * 1024),
0,0,0,0,0,1,0,1,0,1)
.long TLB1_MAS0(0, 0, 0)
.long TLB1_MAS1(1, 0, 0, 0, 0)
.long TLB1_MAS2(E500_TLB_EPN(CFG_INIT_RAM_ADDR + 12 * 1024),
0,0,0,0,0,0,1,0)
.long TLB1_MAS3(E500_TLB_RPN(CFG_INIT_RAM_ADDR + 12 * 1024),
0,0,0,0,0,1,0,1,0,1)
/*
* TLB 0: 64M Non-cacheable, guarded
* 0xfc000000 64M Covers FLASH at 0xFE800000 and 0xFF800000
* Out of reset this entry is only 4K.
*/
.long TLB1_MAS0(1, 0, 0)
.long TLB1_MAS1(1, 1, 0, 0, BOOKE_PAGESZ_64M)
.long TLB1_MAS2(E500_TLB_EPN(CFG_BOOT_BLOCK), 0,0,0,0,1,0,1,0)
.long TLB1_MAS3(E500_TLB_RPN(CFG_BOOT_BLOCK), 0,0,0,0,0,1,0,1,0,1)
/*
* TLB 1: 1G Non-cacheable, guarded
* 0x80000000 1G PCIE 8,9,a,b
*/
.long TLB1_MAS0(1, 1, 0)
.long TLB1_MAS1(1, 1, 0, 0, BOOKE_PAGESZ_1G)
.long TLB1_MAS2(E500_TLB_EPN(CFG_PCIE_PHYS),
0,0,0,0,1,0,1,0)
.long TLB1_MAS3(E500_TLB_RPN(CFG_PCIE_PHYS),
0,0,0,0,0,1,0,1,0,1)
/*
* TLB 2: 256M Non-cacheable, guarded
*/
.long TLB1_MAS0(1, 2, 0)
.long TLB1_MAS1(1, 1, 0, 0, BOOKE_PAGESZ_256M)
.long TLB1_MAS2(E500_TLB_EPN(CFG_PCI_PHYS),
0,0,0,0,1,0,1,0)
.long TLB1_MAS3(E500_TLB_RPN(CFG_PCI_PHYS), 0,0,0,0,0,1,0,1,0,1)
/*
* TLB 3: 256M Non-cacheable, guarded
*/
.long TLB1_MAS0(1, 3, 0)
.long TLB1_MAS1(1, 1, 0, 0, BOOKE_PAGESZ_256M)
.long TLB1_MAS2(E500_TLB_EPN(CFG_PCI_PHYS + 0x10000000),
0,0,0,0,1,0,1,0)
.long TLB1_MAS3(E500_TLB_RPN(CFG_PCI_PHYS + 0x10000000),
0,0,0,0,0,1,0,1,0,1)
/*
* TLB 4: 64M Non-cacheable, guarded
* 0xe000_0000 1M CCSRBAR
* 0xe100_0000 255M PCI IO range
*/
.long TLB1_MAS0(1, 4, 0)
.long TLB1_MAS1(1, 1, 0, 0, BOOKE_PAGESZ_64M)
.long TLB1_MAS2(E500_TLB_EPN(CFG_CCSRBAR), 0,0,0,0,1,0,1,0)
.long TLB1_MAS3(E500_TLB_RPN(CFG_CCSRBAR), 0,0,0,0,0,1,0,1,0,1)
#ifdef CFG_LBC_CACHE_BASE
/*
* TLB 5: 64M Cacheable, non-guarded
*/
.long TLB1_MAS0(1, 5, 0)
.long TLB1_MAS1(1, 1, 0, 0, BOOKE_PAGESZ_64M)
.long TLB1_MAS2(E500_TLB_EPN(CFG_LBC_CACHE_BASE), 0,0,0,0,0,0,0,0)
.long TLB1_MAS3(E500_TLB_RPN(CFG_LBC_CACHE_BASE), 0,0,0,0,0,1,0,1,0,1)
#endif
/*
* TLB 6: 64M Non-cacheable, guarded
* 0xf8000000 64M PIXIS 0xF8000000 - 0xFBFFFFFF
*/
.long TLB1_MAS0(1, 6, 0)
.long TLB1_MAS1(1, 1, 0, 0, BOOKE_PAGESZ_64M)
.long TLB1_MAS2(E500_TLB_EPN(CFG_LBC_NONCACHE_BASE), 0,0,0,0,1,0,1,0)
.long TLB1_MAS3(E500_TLB_RPN(CFG_LBC_NONCACHE_BASE), 0,0,0,0,0,1,0,1,0,1)
2:
entry_end
/*
* LAW(Local Access Window) configuration:
*
*
* Notes:
* CCSRBAR and L2-as-SRAM don't need a configured Local Access Window.
* If flash is 8M at default position (last 8M), no LAW needed.
*
* LAW 0 is reserved for boot mapping
*/
.section .bootpg, "ax"
.globl law_entry
law_entry:
entry_start
.long (4f-3f)/8
3:
.long 0
.long (LAWAR_TRGT_DDR | (LAWAR_SIZE & LAWAR_SIZE_128M)) & ~LAWAR_EN
.long (CFG_PCI1_MEM_PHYS>>12) & 0xfffff
.long LAWAR_EN | LAWAR_TRGT_PCI1 | (LAWAR_SIZE & LAWAR_SIZE_512M)
.long (CFG_PCI1_IO_PHYS>>12) & 0xfffff
.long LAWAR_EN | LAWAR_TRGT_PCI1 | (LAWAR_SIZE & LAWAR_SIZE_64K)
.long (CFG_LBC_CACHE_BASE>>12) & 0xfffff
.long LAWAR_EN | LAWAR_TRGT_LBC | (LAWAR_SIZE & LAWAR_SIZE_256M)
.long (CFG_PCIE1_MEM_PHYS>>12) & 0xfffff
.long LAWAR_EN | LAWAR_TRGT_PCIE1 | (LAWAR_SIZE & LAWAR_SIZE_256M)
.long (CFG_PCIE1_IO_PHYS>>12) & 0xfffff
.long LAWAR_EN | LAWAR_TRGT_PCIE1 | (LAWAR_SIZE & LAWAR_SIZE_64K)
.long (CFG_PCIE2_MEM_PHYS>>12) & 0xfffff
.long LAWAR_EN | LAWAR_TRGT_PCIE2 | (LAWAR_SIZE & LAWAR_SIZE_512M)
.long (CFG_PCIE2_IO_PHYS>>12) & 0xfffff
.long LAWAR_EN | LAWAR_TRGT_PCIE2 | (LAWAR_SIZE & LAWAR_SIZE_64K)
/* contains both PCIE3 MEM & IO space */
.long (CFG_PCIE3_MEM_PHYS>>12) & 0xfffff
.long LAWAR_EN | LAWAR_TRGT_PCIE3 | (LAWAR_SIZE & LAWAR_SIZE_4M)
4:
entry_end
|
