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authorwdenk <wdenk>2003-09-10 22:30:53 +0000
committerwdenk <wdenk>2003-09-10 22:30:53 +0000
commit7205e4075d8b50e4dd89fe39ed03860b23cbb704 (patch)
tree0dfa865e7087ff4ee07967a2531c91ff5645a802 /cpu/mpc824x/start.S
parent149dded2b178bc0fb62cb6f61b87968d914b580a (diff)
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* Patches by Denis Peter, 9 Sep 2003:
add FAT support for IDE, SCSI and USB * Patches by Gleb Natapov, 2 Sep 2003: - cleanup of POST code for unsupported architectures - MPC824x locks way0 of data cache for use as initial RAM; this patch unlocks it after relocation to RAM and invalidates the locked entries. * Patch by Gleb Natapov, 30 Aug 2003: new I2C driver for mpc107 bridge. Now works from flash. * Patch by Dave Ellis, 11 Aug 2003: - JFFS2: fix typo in common/cmd_jffs2.c - JFFS2: fix CFG_JFFS2_SORT_FRAGMENTS option - JFFS2: remove node version 0 warning - JFFS2: accept JFFS2 PADDING nodes - SXNI855T: add AM29LV800 support - SXNI855T: move environment from EEPROM to flash - SXNI855T: boot from JFFS2 in NOR or NAND flash * Patch by Bill Hargen, 11 Aug 2003: fixes for I2C on MPC8240 - fix i2c_write routine - fix iprobe command - eliminates use of global variables, plus dead code, cleanup.
Diffstat (limited to 'cpu/mpc824x/start.S')
-rw-r--r--cpu/mpc824x/start.S17
1 files changed, 16 insertions, 1 deletions
diff --git a/cpu/mpc824x/start.S b/cpu/mpc824x/start.S
index a22137c..9ff052c 100644
--- a/cpu/mpc824x/start.S
+++ b/cpu/mpc824x/start.S
@@ -526,11 +526,26 @@ relocate_code:
stwu r0,-4(r7)
bdnz 3b
+4:
+#if !defined(CONFIG_BMW)
+/* Unlock the data cache and invalidate locked area */
+ xor r0, r0, r0
+ mtspr 1011, r0
+ lis r4, CFG_INIT_RAM_ADDR@h
+ ori r4, r4, CFG_INIT_RAM_ADDR@l
+ li r0, 128
+ mtctr r0
+41:
+ dcbi r0, r4
+ addi r4, r4, 32
+ bdnz 41b
+#endif
+
/*
* Now flush the cache: note that we must start from a cache aligned
* address. Otherwise we might miss one cache line.
*/
-4: cmpwi r6,0
+ cmpwi r6,0
add r5,r3,r5
beq 7f /* Always flush prefetch queue in any case */
subi r0,r6,1