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authorPeter Tyser <ptyser@xes-inc.com>2009-07-10 11:03:19 -0500
committerWolfgang Denk <wd@denx.de>2009-07-21 00:13:21 +0200
commit1bc1538613d66cef3cbce680fc8d7c3561a0fbd0 (patch)
treef832202519d4077e8ca735948198691f054fe968 /examples/test_burst_lib.S
parentb220c64d86f7c705a183302c3b50076d7e5d876c (diff)
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Move examples/ to examples/standalone
The current files in examples are all standalone application examples, so put them in their own subdirectory for organizational purposes Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Diffstat (limited to 'examples/test_burst_lib.S')
-rw-r--r--examples/test_burst_lib.S170
1 files changed, 0 insertions, 170 deletions
diff --git a/examples/test_burst_lib.S b/examples/test_burst_lib.S
deleted file mode 100644
index aef4e32..0000000
--- a/examples/test_burst_lib.S
+++ /dev/null
@@ -1,170 +0,0 @@
-/*
- * (C) Copyright 2005
- * 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 <config.h>
-
-#include <ppc_asm.tmpl>
-#include <ppc_defs.h>
-#include <asm/cache.h>
-#include <asm/mmu.h>
-#include "test_burst.h"
-
- .text
-/*
- * void mmu_init(void);
- *
- * This function turns the MMU on
- *
- * Three 8 MByte regions are mapped 1:1, uncached
- * - SDRAM lower 8 MByte
- * - SDRAM higher 8 MByte
- * - IMMR
- */
- .global mmu_init
-mmu_init:
- tlbia /* Invalidate all TLB entries */
- li r8, 0
- mtspr MI_CTR, r8 /* Set instruction control to zero */
- lis r8, MD_RESETVAL@h
- mtspr MD_CTR, r8 /* Set data TLB control */
-
- /* Now map the lower 8 Meg into the TLBs. For this quick hack,
- * we can load the instruction and data TLB registers with the
- * same values.
- */
- li r8, MI_EVALID /* Create EPN for address 0 */
- mtspr MI_EPN, r8
- mtspr MD_EPN, r8
- li r8, MI_PS8MEG /* Set 8M byte page */
- ori r8, r8, MI_SVALID /* Make it valid */
- mtspr MI_TWC, r8
- mtspr MD_TWC, r8
- li r8, MI_BOOTINIT|0x2 /* Create RPN for address 0 */
- mtspr MI_RPN, r8 /* Store TLB entry */
- mtspr MD_RPN, r8
- lis r8, MI_Kp@h /* Set the protection mode */
- mtspr MI_AP, r8
- mtspr MD_AP, r8
-
- /* Now map the higher 8 Meg into the TLBs. For this quick hack,
- * we can load the instruction and data TLB registers with the
- * same values.
- */
- lwz r9,20(r2) /* gd->ram_size */
- addis r9,r9,-0x80
-
- mr r8, r9 /* Higher 8 Meg in SDRAM */
- ori r8, r8, MI_EVALID /* Mark page valid */
- mtspr MI_EPN, r8
- mtspr MD_EPN, r8
- li r8, MI_PS8MEG /* Set 8M byte page */
- ori r8, r8, MI_SVALID /* Make it valid */
- mtspr MI_TWC, r8
- mtspr MD_TWC, r8
- mr r8, r9
- ori r8, r8, MI_BOOTINIT|0x2
- mtspr MI_RPN, r8 /* Store TLB entry */
- mtspr MD_RPN, r8
- lis r8, MI_Kp@h /* Set the protection mode */
- mtspr MI_AP, r8
- mtspr MD_AP, r8
-
- /* Map another 8 MByte at the IMMR to get the processor
- * internal registers (among other things).
- */
- mfspr r9, 638 /* Get current IMMR */
- andis. r9, r9, 0xff80 /* Get 8Mbyte boundary */
-
- mr r8, r9 /* Create vaddr for TLB */
- ori r8, r8, MD_EVALID /* Mark it valid */
- mtspr MD_EPN, r8
- li r8, MD_PS8MEG /* Set 8M byte page */
- ori r8, r8, MD_SVALID /* Make it valid */
- mtspr MD_TWC, r8
- mr r8, r9 /* Create paddr for TLB */
- ori r8, r8, MI_BOOTINIT|0x2 /* Inhibit cache -- Cort */
- mtspr MD_RPN, r8
-
- /* We now have the lower and higher 8 Meg mapped into TLB entries,
- * and the caches ready to work.
- */
- mfmsr r0
- ori r0,r0,MSR_DR|MSR_IR
- mtspr SRR1,r0
- mflr r0
- mtspr SRR0,r0
- SYNC
- rfi /* enables MMU */
-
-/*
- * void caches_init(void);
- */
- .globl caches_init
-caches_init:
- sync
-
- mfspr r3, IC_CST /* Clear error bits */
- mfspr r3, DC_CST
-
- lis r3, IDC_UNALL@h /* Unlock all */
- mtspr IC_CST, r3
- mtspr DC_CST, r3
-
- lis r3, IDC_INVALL@h /* Invalidate all */
- mtspr IC_CST, r3
- mtspr DC_CST, r3
-
- lis r3, IDC_ENABLE@h /* Enable all */
- mtspr IC_CST, r3
- mtspr DC_CST, r3
-
- blr
-
-/*
- * void flush_dcache_range(unsigned long start, unsigned long stop);
- */
- .global flush_dcache_range
-flush_dcache_range:
- li r5,CACHE_LINE_SIZE-1
- andc r3,r3,r5
- subf r4,r3,r4
- add r4,r4,r5
- srwi. r4,r4,LG_CACHE_LINE_SIZE
- beqlr
- mtctr r4
-
-1: dcbf 0,r3
- addi r3,r3,CACHE_LINE_SIZE
- bdnz 1b
- sync /* wait for dcbf's to get to ram */
- blr
-
-/*
- * void disable_interrupts(void);
- */
- .global disable_interrupts
-disable_interrupts:
- mfmsr r0
- rlwinm r0,r0,0,17,15
- mtmsr r0
- blr