diff options
Diffstat (limited to 'board/mpc8540ads/init.S')
| -rw-r--r-- | board/mpc8540ads/init.S | 320 |
1 files changed, 194 insertions, 126 deletions
diff --git a/board/mpc8540ads/init.S b/board/mpc8540ads/init.S index 99c4d79..242cb9f 100644 --- a/board/mpc8540ads/init.S +++ b/board/mpc8540ads/init.S @@ -1,26 +1,26 @@ /* * Copyright 2004 Freescale Semiconductor. -* Copyright (C) 2002,2003, Motorola Inc. -* Xianghua Xiao <X.Xiao@motorola.com> -* -* 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 -*/ + * Copyright (C) 2002,2003, Motorola Inc. + * Xianghua Xiao <X.Xiao@motorola.com> + * + * 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> @@ -29,6 +29,24 @@ #include <config.h> #include <mpc85xx.h> + +/* + * 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 ; @@ -38,119 +56,174 @@ mtlr r1 ; \ blr ; -/* TLB1 entries configuration: */ .section .bootpg, "ax" .globl tlb1_entry tlb1_entry: entry_start - /* Number of entries in the following table */ - .long 0x0c - - .long TLB1_MAS0(1,1,0) - .long TLB1_MAS1(1,1,0,0,BOOKE_PAGESZ_1M) - .long TLB1_MAS2(((CFG_CCSRBAR>>12) & 0xfffff),0,0,0,0,1,0,1,0) - .long TLB1_MAS3(((CFG_CCSRBAR>>12) & 0xfffff),0,0,0,0,0,1,0,1,0,1) - - #if defined(CFG_FLASH_PORT_WIDTH_16) - .long TLB1_MAS0(1,2,0) - .long TLB1_MAS1(1,1,0,0,BOOKE_PAGESZ_4M) - .long TLB1_MAS2(((CFG_FLASH_BASE>>12) & 0xfffff),0,0,0,0,1,0,1,0) - .long TLB1_MAS3(((CFG_FLASH_BASE>>12) & 0xfffff),0,0,0,0,0,1,0,1,0,1) - - .long TLB1_MAS0(1,3,0) - .long TLB1_MAS1(1,1,0,0,BOOKE_PAGESZ_4M) - .long TLB1_MAS2((((CFG_FLASH_BASE+0x400000)>>12)&0xfffff),0,0,0,0,1,0,1,0) - .long TLB1_MAS3((((CFG_FLASH_BASE+0x400000)>>12)&0xfffff),0,0,0,0,0,1,0,1,0,1) - #else - .long TLB1_MAS0(1,2,0) - .long TLB1_MAS1(1,1,0,0,BOOKE_PAGESZ_16M) - .long TLB1_MAS2(((CFG_FLASH_BASE>>12) & 0xfffff),0,0,0,0,1,0,1,0) - .long TLB1_MAS3(((CFG_FLASH_BASE>>12) & 0xfffff),0,0,0,0,0,1,0,1,0,1) - - .long TLB1_MAS0(1,3,0) - .long TLB1_MAS1(0,0,0,0,BOOKE_PAGESZ_1M) - .long TLB1_MAS2(0,0,0,0,0,0,0,0,0) - .long TLB1_MAS3(0,0,0,0,0,0,1,0,1,0,1) - #endif - - #if !defined(CONFIG_SPD_EEPROM) - .long TLB1_MAS0(1,4,0) - .long TLB1_MAS1(1,1,0,0,BOOKE_PAGESZ_64M) - .long TLB1_MAS2(((CFG_DDR_SDRAM_BASE>>12) & 0xfffff),0,0,0,0,0,0,0,0) - .long TLB1_MAS3(((CFG_DDR_SDRAM_BASE>>12) & 0xfffff),0,0,0,0,0,1,0,1,0,1) - - .long TLB1_MAS0(1,5,0) - .long TLB1_MAS1(1,1,0,0,BOOKE_PAGESZ_64M) - .long TLB1_MAS2((((CFG_DDR_SDRAM_BASE+0x4000000)>>12) & 0xfffff),0,0,0,0,0,0,0,0) - .long TLB1_MAS3((((CFG_DDR_SDRAM_BASE+0x4000000)>>12) & 0xfffff),0,0,0,0,0,1,0,1,0,1) - #else - .long TLB1_MAS0(1,4,0) - .long TLB1_MAS1(0,0,0,0,BOOKE_PAGESZ_1M) - .long TLB1_MAS2(0,0,0,0,0,0,0,0,0) - .long TLB1_MAS3(0,0,0,0,0,0,1,0,1,0,1) - - .long TLB1_MAS0(1,5,0) - .long TLB1_MAS1(0,0,0,0,BOOKE_PAGESZ_1M) - .long TLB1_MAS2(0,0,0,0,0,0,0,0,0) - .long TLB1_MAS3(0,0,0,0,0,0,1,0,1,0,1) - #endif - - .long TLB1_MAS0(1,6,0) - .long TLB1_MAS1(1,1,0,0,BOOKE_PAGESZ_64M) - #if defined(CONFIG_RAM_AS_FLASH) - .long TLB1_MAS2(((CFG_LBC_SDRAM_BASE>>12) & 0xfffff),0,0,0,0,1,0,1,0) - #else - .long TLB1_MAS2(((CFG_LBC_SDRAM_BASE>>12) & 0xfffff),0,0,0,0,0,0,0,0) - #endif - .long TLB1_MAS3(((CFG_LBC_SDRAM_BASE>>12) & 0xfffff),0,0,0,0,0,1,0,1,0,1) - - .long TLB1_MAS0(1,7,0) - .long TLB1_MAS1(1,1,0,0,BOOKE_PAGESZ_16K) - #ifdef CONFIG_L2_INIT_RAM - .long TLB1_MAS2(((CFG_INIT_RAM_ADDR>>12) & 0xfffff),0,0,0,1,0,0,0,0) - #else - .long TLB1_MAS2(((CFG_INIT_RAM_ADDR>>12) & 0xfffff),0,0,0,0,0,0,0,0) - #endif - .long TLB1_MAS3(((CFG_INIT_RAM_ADDR>>12) & 0xfffff),0,0,0,0,0,1,0,1,0,1) - - .long TLB1_MAS0(1,8,0) - .long TLB1_MAS1(1,1,0,0,BOOKE_PAGESZ_256M) - .long TLB1_MAS2(((CFG_PCI1_MEM_BASE>>12) & 0xfffff),0,0,0,0,1,0,1,0) - .long TLB1_MAS3(((CFG_PCI1_MEM_BASE>>12) & 0xfffff),0,0,0,0,0,1,0,1,0,1) - - .long TLB1_MAS0(1,9,0) - .long TLB1_MAS1(1,1,0,0,BOOKE_PAGESZ_16K) - .long TLB1_MAS2(((CFG_BCSR>>12) & 0xfffff),0,0,0,0,1,0,1,0) - .long TLB1_MAS3(((CFG_BCSR>>12) & 0xfffff),0,0,0,0,0,1,0,1,0,1) + /* + * Number of TLB0 and TLB1 entries in the following table + */ + .long 13 + +#if (CFG_CCSRBAR_DEFAULT != CFG_CCSRBAR) + /* + * 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) +#else +#error("Update the number of table entries in tlb1_entry") +#endif /* - * RapidIO MMU for 512M - * Two entries, 10 and 11 + * TLB0 16K Cacheable, non-guarded + * 0xd001_0000 16K 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(1,10,0) - .long TLB1_MAS1(1,1,0,0,BOOKE_PAGESZ_256M) - .long TLB1_MAS2(((CFG_RIO_MEM_BASE>>12) & 0xfffff),0,0,0,0,1,0,1,0) - .long TLB1_MAS3(((CFG_RIO_MEM_BASE>>12) & 0xfffff),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), + 0,0,0,0,0,0,0,0) + .long TLB1_MAS3(E500_TLB_RPN(CFG_INIT_RAM_ADDR), + 0,0,0,0,0,1,0,1,0,1) - .long TLB1_MAS0(1,11,0) - .long TLB1_MAS1(1,1,0,0,BOOKE_PAGESZ_256M) - .long TLB1_MAS2(((CFG_RIO_MEM_BASE+0x10000000>>12) & 0xfffff),0,0,0,0,1,0,1,0) - .long TLB1_MAS3(((CFG_RIO_MEM_BASE+0x10000000>>12) & 0xfffff),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), + 0,0,0,0,0,0,0,0) + .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), + 0,0,0,0,0,0,0,0) + .long TLB1_MAS3(E500_TLB_RPN(CFG_INIT_RAM_ADDR + 8 * 1024), + 0,0,0,0,0,1,0,1,0,1) -#if (CFG_CCSRBAR_DEFAULT != CFG_CCSRBAR) - .long TLB1_MAS0(1,15,0) - .long TLB1_MAS1(1,1,0,0,BOOKE_PAGESZ_1M) - .long TLB1_MAS2(((CFG_CCSRBAR_DEFAULT>>12) & 0xfffff),0,0,0,0,1,0,1,0) - .long TLB1_MAS3(((CFG_CCSRBAR_DEFAULT>>12) & 0xfffff),0,0,0,0,0,1,0,1,0,1) -#else - .long TLB1_MAS0(1,15,0) - .long TLB1_MAS1(0,0,0,0,BOOKE_PAGESZ_1M) - .long TLB1_MAS2(0,0,0,0,0,0,0,0,0) - .long TLB1_MAS3(0,0,0,0,0,0,1,0,1,0,1) + .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), + 0,0,0,0,0,0,0,0) + .long TLB1_MAS3(E500_TLB_RPN(CFG_INIT_RAM_ADDR + 12 * 1024), + 0,0,0,0,0,1,0,1,0,1) + + + /* + * TLB 0: 16M Non-cacheable, guarded + * 0xff000000 16M FLASH + * Out of reset this entry is only 4K. + */ + .long TLB1_MAS0(1, 0, 0) + .long TLB1_MAS1(1, 1, 0, 0, BOOKE_PAGESZ_16M) + .long TLB1_MAS2(E500_TLB_EPN(CFG_FLASH_BASE), 0,0,0,0,1,0,1,0) + .long TLB1_MAS3(E500_TLB_RPN(CFG_FLASH_BASE), 0,0,0,0,0,1,0,1,0,1) + + /* + * TLB 1: 256M Non-cacheable, guarded + * 0x80000000 256M PCI1 MEM First half + */ + .long TLB1_MAS0(1, 1, 0) + .long TLB1_MAS1(1, 1, 0, 0, BOOKE_PAGESZ_256M) + .long TLB1_MAS2(E500_TLB_EPN(CFG_PCI1_MEM_BASE), 0,0,0,0,1,0,1,0) + .long TLB1_MAS3(E500_TLB_RPN(CFG_PCI1_MEM_BASE), 0,0,0,0,0,1,0,1,0,1) + + /* + * TLB 2: 256M Non-cacheable, guarded + * 0x90000000 256M PCI1 MEM Second half + */ + .long TLB1_MAS0(1, 2, 0) + .long TLB1_MAS1(1, 1, 0, 0, BOOKE_PAGESZ_256M) + .long TLB1_MAS2(E500_TLB_EPN(CFG_PCI1_MEM_BASE + 0x10000000), + 0,0,0,0,1,0,1,0) + .long TLB1_MAS3(E500_TLB_RPN(CFG_PCI1_MEM_BASE + 0x10000000), + 0,0,0,0,0,1,0,1,0,1) + + /* + * TLB 3: 256M Non-cacheable, guarded + * 0xc0000000 256M Rapid IO MEM First half + */ + .long TLB1_MAS0(1, 3, 0) + .long TLB1_MAS1(1, 1, 0, 0, BOOKE_PAGESZ_256M) + .long TLB1_MAS2(E500_TLB_EPN(CFG_RIO_MEM_BASE), 0,0,0,0,1,0,1,0) + .long TLB1_MAS3(E500_TLB_RPN(CFG_RIO_MEM_BASE), 0,0,0,0,0,1,0,1,0,1) + + /* + * TLB 4: 256M Non-cacheable, guarded + * 0xd0000000 256M Rapid IO MEM Second half + */ + .long TLB1_MAS0(1, 4, 0) + .long TLB1_MAS1(1, 1, 0, 0, BOOKE_PAGESZ_256M) + .long TLB1_MAS2(E500_TLB_EPN(CFG_RIO_MEM_BASE + 0x10000000), + 0,0,0,0,1,0,1,0) + .long TLB1_MAS3(E500_TLB_RPN(CFG_RIO_MEM_BASE + 0x10000000), + 0,0,0,0,0,1,0,1,0,1) + + /* + * TLB 5: 64M Non-cacheable, guarded + * 0xe000_0000 1M CCSRBAR + * 0xe200_0000 16M PCI1 IO + */ + .long TLB1_MAS0(1, 5, 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) + + /* + * TLB 6: 64M Cacheable, non-guarded + * 0xf000_0000 64M LBC SDRAM + */ + .long TLB1_MAS0(1, 6, 0) + .long TLB1_MAS1(1, 1, 0, 0, BOOKE_PAGESZ_64M) + .long TLB1_MAS2(E500_TLB_EPN(CFG_LBC_SDRAM_BASE), 0,0,0,0,0,0,0,0) + .long TLB1_MAS3(E500_TLB_RPN(CFG_LBC_SDRAM_BASE), 0,0,0,0,0,1,0,1,0,1) + + /* + * TLB 7: 16K Non-cacheable, guarded + * 0xf8000000 16K BCSR registers + */ + .long TLB1_MAS0(1, 7, 0) + .long TLB1_MAS1(1, 1, 0, 0, BOOKE_PAGESZ_16K) + .long TLB1_MAS2(E500_TLB_EPN(CFG_BCSR), 0,0,0,0,1,0,1,0) + .long TLB1_MAS3(E500_TLB_RPN(CFG_BCSR), 0,0,0,0,0,1,0,1,0,1) + +#if !defined(CONFIG_SPD_EEPROM) + /* + * TLB 8, 9: 128M DDR + * 0x00000000 64M DDR System memory + * 0x04000000 64M DDR System memory + * Without SPD EEPROM configured DDR, this must be setup manually. + * Make sure the TLB count at the top of this table is correct. + * Likely it needs to be increased by two for these entries. + */ +#error("Update the number of table entries in tlb1_entry") + .long TLB1_MAS0(1, 8, 0) + .long TLB1_MAS1(1, 1, 0, 0, BOOKE_PAGESZ_64M) + .long TLB1_MAS2(E500_TLB_EPN(CFG_DDR_SDRAM_BASE), 0,0,0,0,0,0,0,0) + .long TLB1_MAS3(E500_TLB_RPN(CFG_DDR_SDRAM_BASE), 0,0,0,0,0,1,0,1,0,1) + + .long TLB1_MAS0(1, 9, 0) + .long TLB1_MAS1(1, 1, 0, 0, BOOKE_PAGESZ_64M) + .long TLB1_MAS2(E500_TLB_EPN(CFG_DDR_SDRAM_BASE + 0x4000000), + 0,0,0,0,0,0,0,0) + .long TLB1_MAS3(E500_TLB_RPN(CFG_DDR_SDRAM_BASE + 0x4000000), + 0,0,0,0,0,1,0,1,0,1) #endif + entry_end /* @@ -184,13 +257,8 @@ tlb1_entry: /* * This is not so much the SDRAM map as it is the whole localbus map. */ -#if !defined(CONFIG_RAM_AS_FLASH) #define LAWBAR2 ((CFG_LBC_SDRAM_BASE>>12) & 0xfffff) #define LAWAR2 (LAWAR_EN | LAWAR_TRGT_IF_LBC | (LAWAR_SIZE & LAWAR_SIZE_256M)) -#else -#define LAWBAR2 0 -#define LAWAR2 ((LAWAR_TRGT_IF_LBC | (LAWAR_SIZE & LAWAR_SIZE_128M)) & ~LAWAR_EN) -#endif #define LAWBAR3 ((CFG_PCI1_IO_BASE>>12) & 0xfffff) #define LAWAR3 (LAWAR_EN | LAWAR_TRGT_IF_PCIX | (LAWAR_SIZE & LAWAR_SIZE_16M)) |