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| author | Niklaus Giger <niklausgiger@gmx.ch> | 2008-01-10 18:50:33 +0100 |
|---|---|---|
| committer | Stefan Roese <sr@denx.de> | 2008-01-10 19:06:54 +0100 |
| commit | 4d332dbeb08f5863d1ea69d91a00c5499d3a87ed (patch) | |
| tree | 2a5d2f294650884ad21d89749c0efc5cf3d52c60 /board/amcc | |
| parent | 6d8184b00c0d1d7090e4a2f514e310d98a394f8d (diff) | |
| download | blackbird-obmc-uboot-4d332dbeb08f5863d1ea69d91a00c5499d3a87ed.tar.gz blackbird-obmc-uboot-4d332dbeb08f5863d1ea69d91a00c5499d3a87ed.zip | |
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.S | 26 |
1 files changed, 14 insertions, 12 deletions
diff --git a/board/amcc/sequoia/init.S b/board/amcc/sequoia/init.S index ff6ae669ef..306c92c157 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 ) |
