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-rw-r--r--board/mpc8560ads/init.S320
1 files changed, 194 insertions, 126 deletions
diff --git a/board/mpc8560ads/init.S b/board/mpc8560ads/init.S
index 99c4d79..242cb9f 100644
--- a/board/mpc8560ads/init.S
+++ b/board/mpc8560ads/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))
generated by cgit v1.1 at 2024-12-02 08:07:29 +0000