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authorNiklaus Giger <niklausgiger@gmx.ch>2008-01-10 18:50:33 +0100
committerStefan Roese <sr@denx.de>2008-01-10 19:06:54 +0100
commit4d332dbeb08f5863d1ea69d91a00c5499d3a87ed (patch)
tree2a5d2f294650884ad21d89749c0efc5cf3d52c60 /board/amcc
parent6d8184b00c0d1d7090e4a2f514e310d98a394f8d (diff)
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ppc4xx: Make Sequoia boot vxWorks
vxWorks expects in TLB 0 a entry for the Machine Check interrupt TLB 1 a entry for the RAM TLB 2 a entry for the EBC TLB 3 a entry for the boot flash After changing the baudrate to 9600 I had no problems to boot the vxWorks image as distributed by WindRiver (Revision 2.0/1 from June 18, 2007) Signed-off-by: Niklaus Giger <niklaus.giger@netstal.com>
Diffstat (limited to 'board/amcc')
-rw-r--r--board/amcc/sequoia/init.S26
1 files changed, 14 insertions, 12 deletions
diff --git a/board/amcc/sequoia/init.S b/board/amcc/sequoia/init.S
index ff6ae66..306c92c 100644
--- a/board/amcc/sequoia/init.S
+++ b/board/amcc/sequoia/init.S
@@ -39,15 +39,8 @@
tlbtab:
tlbtab_start
- /*
- * BOOT_CS (FLASH) must be first. Before relocation SA_I can be off to use the
- * speed up boot process. It is patched after relocation to enable SA_I
- */
-#ifndef CONFIG_NAND_SPL
- tlbentry( CFG_BOOT_BASE_ADDR, SZ_256M, CFG_BOOT_BASE_ADDR, 1, AC_R|AC_W|AC_X|SA_G )
-#else
- tlbentry( CFG_NAND_BOOT_SPL_SRC, SZ_4K, CFG_NAND_BOOT_SPL_SRC, 1, AC_R|AC_W|AC_X|SA_G )
-#endif
+ /* vxWorks needs this as first entry for the Machine Check interrupt */
+ tlbentry( 0x40000000, SZ_256M, 0, 0, AC_R|AC_W|AC_X|SA_G|SA_I )
/* TLB-entry for DDR SDRAM (Up to 2GB) */
#ifdef CONFIG_4xx_DCACHE
@@ -56,6 +49,18 @@ tlbtab:
tlbentry( CFG_SDRAM_BASE, SZ_256M, CFG_SDRAM_BASE, 0, AC_R|AC_W|AC_X|SA_G|SA_I )
#endif
+ /* TLB-entry for EBC */
+ tlbentry( CFG_BCSR_BASE, SZ_256M, CFG_BCSR_BASE, 1, AC_R|AC_W|AC_X|SA_G|SA_I )
+
+ /* BOOT_CS (FLASH) must be forth. Before relocation SA_I can be off to use the
+ * speed up boot process. It is patched after relocation to enable SA_I
+ */
+#ifndef CONFIG_NAND_SPL
+ tlbentry( CFG_BOOT_BASE_ADDR, SZ_256M, CFG_BOOT_BASE_ADDR, 1, AC_R|AC_W|AC_X|SA_G )
+#else
+ tlbentry( CFG_NAND_BOOT_SPL_SRC, SZ_4K, CFG_NAND_BOOT_SPL_SRC, 1, AC_R|AC_W|AC_X|SA_G )
+#endif
+
#ifdef CFG_INIT_RAM_DCACHE
/* TLB-entry for init-ram in dcache (SA_I must be turned off!) */
tlbentry( CFG_INIT_RAM_ADDR, SZ_64K, CFG_INIT_RAM_ADDR, 0, AC_R|AC_W|AC_X|SA_G )
@@ -67,9 +72,6 @@ tlbtab:
tlbentry( CFG_PCI_MEMBASE2, SZ_256M, CFG_PCI_MEMBASE2, 1, AC_R|AC_W|SA_G|SA_I )
tlbentry( CFG_PCI_MEMBASE3, SZ_256M, CFG_PCI_MEMBASE3, 1, AC_R|AC_W|SA_G|SA_I )
- /* TLB-entry for EBC */
- tlbentry( CFG_BCSR_BASE, SZ_1K, CFG_BCSR_BASE, 1, AC_R|AC_W|AC_X|SA_G|SA_I )
-
/* TLB-entry for NAND */
tlbentry( CFG_NAND_ADDR, SZ_1K, CFG_NAND_ADDR, 1, AC_R|AC_W|AC_X|SA_G|SA_I )