X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=board%2Fmpc8540ads%2Finit.S;h=242cb9fbc1dafda157e4cf0a2254f7ef087ae5d0;hb=83dc830b1693252d996bda920cd5f3161d7c64a9;hp=486fdc86cd2b9e8224460223d7cb1032b7e02cce;hpb=97d80fc3912e517ee40e269abf534a006025da5c;p=u-boot

diff --git a/board/mpc8540ads/init.S b/board/mpc8540ads/init.S
index 486fdc86cd..242cb9fbc1 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 	;
@@ -38,118 +56,191 @@
 	mtlr	r1	;	\
 	blr		;
 
-/* TLB1 entries configuration: */
 
 	.section	.bootpg, "ax"
 	.globl	tlb1_entry
 tlb1_entry:
 	entry_start
 
-	.long 0x0a	/* the following data table uses a few of 16 TLB entries */
-
-	.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_PCI_MEM_BASE>>12) & 0xfffff),0,0,0,0,1,0,1,0)
-	.long TLB1_MAS3(((CFG_PCI_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)
-
-  #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)
-  #endif
+	/*
+	 * 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
+
+	/*
+	 * 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(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(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)
+
+	.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
 
 /*
  * LAW(Local Access Window) configuration:
  *
  * 0x0000_0000     0x7fff_ffff     DDR                     2G
- * 0x8000_0000     0x9fff_ffff     PCI MEM                 512M
+ * 0x8000_0000     0x9fff_ffff     PCI1 MEM                512M
+ * 0xc000_0000     0xdfff_ffff     RapidIO                 512M
  * 0xe000_0000     0xe000_ffff     CCSR                    1M
- * 0xe200_0000     0xe2ff_ffff     PCI IO                  16M
+ * 0xe200_0000     0xe2ff_ffff     PCI1 IO                 16M
  * 0xf000_0000     0xf7ff_ffff     SDRAM                   128M
  * 0xf800_0000     0xf80f_ffff     BCSR                    1M
  * 0xff00_0000     0xffff_ffff     FLASH (boot bank)       16M
  *
- * Note: CCSRBAR and L2-as-SRAM don't need a configured Local Access Window.
- * Note: If flash is 8M at default position(last 8M),no LAW needed.
+ * 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.
  */
 
 #if !defined(CONFIG_SPD_EEPROM)
@@ -160,28 +251,23 @@ tlb1_entry:
 #define LAWAR0  ((LAWAR_TRGT_IF_DDR | (LAWAR_SIZE & LAWAR_SIZE_128M)) & ~LAWAR_EN)
 #endif
 
-#define LAWBAR1 ((CFG_PCI_MEM_BASE>>12) & 0xfffff)
+#define LAWBAR1 ((CFG_PCI1_MEM_BASE>>12) & 0xfffff)
 #define LAWAR1	(LAWAR_EN | LAWAR_TRGT_IF_PCIX | (LAWAR_SIZE & LAWAR_SIZE_512M))
 
 /*
  * 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_PCI_IO_BASE>>12) & 0xfffff)
+#define LAWBAR3 ((CFG_PCI1_IO_BASE>>12) & 0xfffff)
 #define LAWAR3	(LAWAR_EN | LAWAR_TRGT_IF_PCIX | (LAWAR_SIZE & LAWAR_SIZE_16M))
 
 /*
  * Rapid IO at 0xc000_0000 for 512 M
  */
-#define LAWBAR4 ((CFG_RAPID_IO_BASE>>12) & 0xfffff)
-#define LAWAR4	(LAWAR_EN | LAWAR_TRGT_IF_PCIX | (LAWAR_SIZE & LAWAR_SIZE_512M))
+#define LAWBAR4 ((CFG_RIO_MEM_BASE>>12) & 0xfffff)
+#define LAWAR4	(LAWAR_EN | LAWAR_TRGT_IF_RIO | (LAWAR_SIZE & LAWAR_SIZE_512M))
 
 
 	.section .bootpg, "ax"