85xx: Convert SBC8540/SBC8560/SBC8548 to new TLB setup

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

4 files changed, 109 insertions, 197 deletions

diff --git a/board/sbc8548/Makefile b/board/sbc8548/Makefile
index c346fdf..4b2a9f6 100644
--- a/board/sbc8548/Makefile
+++ b/board/sbc8548/Makefile
@@ -28,8 +28,7 @@ include $(TOPDIR)/config.mk
 
 LIB	= $(obj)lib$(BOARD).a
 
-COBJS	:= $(BOARD).o law.o
-SOBJS	:= init.o
+COBJS	:= $(BOARD).o law.o tlb.o
 
 SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
 OBJS	:= $(addprefix $(obj),$(COBJS))
diff --git a/board/sbc8548/init.S b/board/sbc8548/init.S
deleted file mode 100644
index 162c326..0000000
--- a/board/sbc8548/init.S
+++ /dev/null
@@ -1,193 +0,0 @@
-/*
- * Copyright 2007 Wind River Systemes, Inc. <www.windriver.com>
- * Copyright 2007 Embedded Specialties, Inc.
- *
- * Copyright 2004 Freescale Semiconductor.
- * Copyright 2002,2003, Motorola 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>
-
-
-/*
- * 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, 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 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 FSL_BOOKE_MAS0(0, 0, 0)
-	.long FSL_BOOKE_MAS1(1, 0, 0, 0, 0)
-	.long FSL_BOOKE_MAS2(CFG_CCSRBAR_DEFAULT, (MAS2_I|MAS2_G))
-	.long FSL_BOOKE_MAS3(CFG_CCSRBAR_DEFAULT, 0, (MAS3_SX|MAS3_SW|MAS3_SR))
-#else
-#error("Update the number of table entries in tlb1_entry")
-#endif
-
-	/*
-	 * TLB0		16K	Cacheable, non-guarded
-	 * 0xe4010000	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 FSL_BOOKE_MAS0(0, 0, 0)
-	.long FSL_BOOKE_MAS1(1, 0, 0, 0, 0)
-	.long FSL_BOOKE_MAS2(CFG_INIT_RAM_ADDR, 0)
-	.long FSL_BOOKE_MAS3(CFG_INIT_RAM_ADDR, 0, (MAS3_SX|MAS3_SW|MAS3_SR))
-
-	.long FSL_BOOKE_MAS0(0, 0, 0)
-	.long FSL_BOOKE_MAS1(1, 0, 0, 0, 0)
-	.long FSL_BOOKE_MAS2(CFG_INIT_RAM_ADDR + 4 * 1024, 0)
-	.long FSL_BOOKE_MAS3(CFG_INIT_RAM_ADDR + 4 * 1024, 0,
-			(MAS3_SX|MAS3_SW|MAS3_SR))
-
-	.long FSL_BOOKE_MAS0(0, 0, 0)
-	.long FSL_BOOKE_MAS1(1, 0, 0, 0, 0)
-	.long FSL_BOOKE_MAS2(CFG_INIT_RAM_ADDR + 8 * 1024, 0)
-	.long FSL_BOOKE_MAS3(CFG_INIT_RAM_ADDR + 8 * 1024, 0,
-			(MAS3_SX|MAS3_SW|MAS3_SR))
-
-	.long FSL_BOOKE_MAS0(0, 0, 0)
-	.long FSL_BOOKE_MAS1(1, 0, 0, 0, 0)
-	.long FSL_BOOKE_MAS2(CFG_INIT_RAM_ADDR + 12 * 1024, 0)
-	.long FSL_BOOKE_MAS3(CFG_INIT_RAM_ADDR + 12 * 1024, 0,
-			(MAS3_SX|MAS3_SW|MAS3_SR))
-
-	/*
-	 * TLB 0:	16M	Non-cacheable, guarded
-	 * 0xff800000	16M	TLB for 8MB FLASH
-	 * Out of reset this entry is only 4K.
-	 */
-	.long FSL_BOOKE_MAS0(1, 0, 0)
-	.long FSL_BOOKE_MAS1(1, 1, 0, 0, BOOKE_PAGESZ_16M)
-	.long FSL_BOOKE_MAS2(CFG_FLASH_BASE, (MAS2_I|MAS2_G))
-	.long FSL_BOOKE_MAS3(CFG_FLASH_BASE, 0, (MAS3_SX|MAS3_SW|MAS3_SR))
-
-	/*
-	 * TLB 1:	256M	Non-cacheable, guarded
-	 * 0x80000000	256M	PCI1 MEM First half
-	 */
-	.long FSL_BOOKE_MAS0(1, 1, 0)
-	.long FSL_BOOKE_MAS1(1, 1, 0, 0, BOOKE_PAGESZ_256M)
-	.long FSL_BOOKE_MAS2(CFG_PCI1_MEM_PHYS, (MAS2_I|MAS2_G))
-	.long FSL_BOOKE_MAS3(CFG_PCI1_MEM_PHYS, 0, (MAS3_SX|MAS3_SW|MAS3_SR))
-
-	/*
-	 * TLB 2:	256M	Non-cacheable, guarded
-	 * 0x90000000	256M	PCI1 MEM Second half
-	 */
-	.long FSL_BOOKE_MAS0(1, 2, 0)
-	.long FSL_BOOKE_MAS1(1, 1, 0, 0, BOOKE_PAGESZ_256M)
-	.long FSL_BOOKE_MAS2(CFG_PCI1_MEM_PHYS + 0x10000000, (MAS2_I|MAS2_G))
-	.long FSL_BOOKE_MAS3(CFG_PCI1_MEM_PHYS + 0x10000000, 0,
-			(MAS3_SX|MAS3_SW|MAS3_SR))
-
-	/*
-	 * TLB 3:	256M Cacheable, non-guarded
-	 * 0x0		256M DDR SDRAM
-	 */
-	#if !defined(CONFIG_SPD_EEPROM)
-	.long FSL_BOOKE_MAS0(1, 3, 0)
-	.long FSL_BOOKE_MAS1(1, 1, 0, 0, BOOKE_PAGESZ_256M)
-	.long FSL_BOOKE_MAS2(CFG_DDR_SDRAM_BASE, 0)
-	.long FSL_BOOKE_MAS3(CFG_DDR_SDRAM_BASE, 0, (MAS3_SX|MAS3_SW|MAS3_SR))
-	#endif
-
-	/*
-	 * TLB 4:	64M	Non-cacheable, guarded
-	 * 0xe0000000	1M	CCSRBAR
-	 * 0xe2000000	16M	PCI1 IO
-	 */
-	.long FSL_BOOKE_MAS0(1, 4, 0)
-	.long FSL_BOOKE_MAS1(1, 1, 0, 0, BOOKE_PAGESZ_64M)
-	.long FSL_BOOKE_MAS2(CFG_CCSRBAR, (MAS2_I|MAS2_G))
-	.long FSL_BOOKE_MAS3(CFG_CCSRBAR, 0, (MAS3_SX|MAS3_SW|MAS3_SR))
-
-	/*
-	 * TLB 5:	64M	Cacheable, non-guarded
-	 * 0xf0000000	64M	LBC SDRAM
-	 */
-	.long FSL_BOOKE_MAS0(1, 5, 0)
-	.long FSL_BOOKE_MAS1(1, 1, 0, 0, BOOKE_PAGESZ_64M)
-	.long FSL_BOOKE_MAS2(CFG_LBC_SDRAM_BASE, 0)
-	.long FSL_BOOKE_MAS3(CFG_LBC_SDRAM_BASE, 0, (MAS3_SX|MAS3_SW|MAS3_SR))
-
-	/*
-	 * TLB 6:	16M	Cacheable, non-guarded
-	 * 0xf8000000	1M	7-segment LED display
-	 * 0xf8100000	1M	User switches
-	 * 0xf8300000	1M	Board revision
-	 * 0xf8b00000	1M	EEPROM
-	 */
-	.long FSL_BOOKE_MAS0(1, 6, 0)
-	.long FSL_BOOKE_MAS1(1, 1, 0, 0, BOOKE_PAGESZ_16M)
-	.long FSL_BOOKE_MAS2(CFG_EPLD_BASE, 0)
-	.long FSL_BOOKE_MAS3(CFG_EPLD_BASE, 0, (MAS3_SX|MAS3_SW|MAS3_SR))
-
-	entry_end
diff --git a/board/sbc8548/tlb.c b/board/sbc8548/tlb.c
new file mode 100644
index 0000000..8d6625e
--- /dev/null
+++ b/board/sbc8548/tlb.c
@@ -0,0 +1,108 @@
+/*
+ * Copyright 2008 Freescale Semiconductor, Inc.
+ *
+ * (C) Copyright 2000
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * 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 <common.h>
+#include <asm/mmu.h>
+
+struct fsl_e_tlb_entry tlb_table[] = {
+	/* TLB 0 - for temp stack in cache */
+	SET_TLB_ENTRY(0, CFG_INIT_RAM_ADDR, CFG_INIT_RAM_ADDR,
+		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
+		      0, 0, BOOKE_PAGESZ_4K, 0),
+	SET_TLB_ENTRY(0, CFG_INIT_RAM_ADDR + 4 * 1024 , CFG_INIT_RAM_ADDR + 4 * 1024,
+		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
+		      0, 0, BOOKE_PAGESZ_4K, 0),
+	SET_TLB_ENTRY(0, CFG_INIT_RAM_ADDR + 8 * 1024 , CFG_INIT_RAM_ADDR + 8 * 1024,
+		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
+		      0, 0, BOOKE_PAGESZ_4K, 0),
+	SET_TLB_ENTRY(0, CFG_INIT_RAM_ADDR + 12 * 1024 , CFG_INIT_RAM_ADDR + 12 * 1024,
+		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
+		      0, 0, BOOKE_PAGESZ_4K, 0),
+
+	/*
+	 * TLB 0:	16M	Non-cacheable, guarded
+	 * 0xff800000	16M	TLB for 8MB FLASH
+	 * Out of reset this entry is only 4K.
+	 */
+	SET_TLB_ENTRY(1, CFG_FLASH_BASE, CFG_FLASH_BASE,
+		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+		      0, 0, BOOKE_PAGESZ_16M, 1),
+
+	/*
+	 * TLB 1:	256M	Non-cacheable, guarded
+	 * 0x80000000	256M	PCI1 MEM First half
+	 */
+	SET_TLB_ENTRY(1, CFG_PCI1_MEM_PHYS, CFG_PCI1_MEM_PHYS,
+		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+		      0, 1, BOOKE_PAGESZ_256M, 1),
+
+	/*
+	 * TLB 2:	256M	Non-cacheable, guarded
+	 * 0x90000000	256M	PCI1 MEM Second half
+	 */
+	SET_TLB_ENTRY(1, CFG_PCI1_MEM_PHYS + 0x10000000, CFG_PCI1_MEM_PHYS + 0x10000000,
+		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+		      0, 2, BOOKE_PAGESZ_256M, 1),
+
+	/*
+	 * TLB 3:	256M Cacheable, non-guarded
+	 * 0x0		256M DDR SDRAM
+	 */
+	#if !defined(CONFIG_SPD_EEPROM)
+	SET_TLB_ENTRY(1, CFG_DDR_SDRAM_BASE, CFG_DDR_SDRAM_BASE,
+		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
+		      0, 3, BOOKE_PAGESZ_256M, 1),
+	#endif
+
+	/*
+	 * TLB 4:	64M	Non-cacheable, guarded
+	 * 0xe0000000	1M	CCSRBAR
+	 * 0xe2000000	16M	PCI1 IO
+	 */
+	SET_TLB_ENTRY(1, CFG_CCSRBAR, CFG_CCSRBAR,
+		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+		      0, 4, BOOKE_PAGESZ_64M, 1),
+
+	/*
+	 * TLB 5:	64M	Cacheable, non-guarded
+	 * 0xf0000000	64M	LBC SDRAM
+	 */
+	SET_TLB_ENTRY(1, CFG_LBC_SDRAM_BASE, CFG_LBC_SDRAM_BASE,
+		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
+		      0, 5, BOOKE_PAGESZ_64M, 1),
+
+	/*
+	 * TLB 6:	16M	Cacheable, non-guarded
+	 * 0xf8000000	1M	7-segment LED display
+	 * 0xf8100000	1M	User switches
+	 * 0xf8300000	1M	Board revision
+	 * 0xf8b00000	1M	EEPROM
+	 */
+	SET_TLB_ENTRY(1, CFG_EPLD_BASE, CFG_EPLD_BASE,
+		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+		      0, 6, BOOKE_PAGESZ_16M, 1),
+};
+
+int num_tlb_entries = ARRAY_SIZE(tlb_table);
diff --git a/board/sbc8548/u-boot.lds b/board/sbc8548/u-boot.lds
index 8e301d4..d701096 100644
--- a/board/sbc8548/u-boot.lds
+++ b/board/sbc8548/u-boot.lds
@@ -34,7 +34,6 @@ SECTIONS
   .bootpg 0xFFFFF000 :
   {
     cpu/mpc85xx/start.o	(.bootpg)
-    board/sbc8548/init.o (.bootpg)
   } = 0xffff
 
   /* Read-only sections, merged into text segment: */
@@ -64,7 +63,6 @@ SECTIONS
   .text      :
   {
     cpu/mpc85xx/start.o	(.text)
-    board/sbc8548/init.o (.text)
     cpu/mpc85xx/traps.o (.text)
     cpu/mpc85xx/interrupts.o (.text)
     cpu/mpc85xx/cpu_init.o (.text)