@@ -267,8 +267,13 @@
* 4xx RAM-booting U-Boot image is started from offset 0
*/
.text
+#if defined(CONFIG_440)
bl _start_440
#endif
+#if defined(CONFIG_405)
+ bl _start
+#endif
+#endif
/*
* 440 Startup -- on reset only the top 4k of the effective
@@ -1086,7 +1086,7 @@ METROBOX powerpc ppc4xx metrobox sandbur
xpedite1000 powerpc ppc4xx - xes
ml507 powerpc ppc4xx ml507 xilinx - ml507:SYS_TEXT_BASE=0x04000000,RESET_VECTOR_ADDRESS=0x04100000,BOOT_FROM_XMD=1,INIT_TLB=board/xilinx/ppc440-generic/init.o
ml507_flash powerpc ppc4xx ml507 xilinx - ml507:SYS_TEXT_BASE=0xF7F60000,RESET_VECTOR_ADDRESS=0xF7FFFFFC,INIT_TLB=board/xilinx/ppc440-generic/init.o
-xilinx-ppc405-generic powerpc ppc4xx ppc405-generic xilinx - xilinx-ppc405-generic:SYS_TEXT_BASE=0x04000000,RESET_VECTOR_ADDRESS=0x04100000
+xilinx-ppc405-generic powerpc ppc4xx ppc405-generic xilinx - xilinx-ppc405-generic:SYS_TEXT_BASE=0x04000000,RESET_VECTOR_ADDRESS=0x04100000,BOOT_FROM_XMD=1
xilinx-ppc405-generic_flash powerpc ppc4xx ppc405-generic xilinx - xilinx-ppc405-generic:SYS_TEXT_BASE=0xF7F60000,RESET_VECTOR_ADDRESS=0xF7FFFFFC
xilinx-ppc440-generic powerpc ppc4xx ppc440-generic xilinx - xilinx-ppc440-generic:SYS_TEXT_BASE=0x04000000,RESET_VECTOR_ADDRESS=0x04100000,BOOT_FROM_XMD=1
xilinx-ppc440-generic_flash powerpc ppc4xx ppc440-generic xilinx - xilinx-ppc440-generic:SYS_TEXT_BASE=0xF7F60000,RESET_VECTOR_ADDRESS=0xF7FFFFFC
Dear All, This is an RFC. The first instruction during RAM boot is a branch to _start. This is as desribed in the start.S file for ppc4xx arch. This is not the case when trying to do a RAM boot build for the ppc405 platform. ** Pre-patch build-x405g-pre/u-boot: file format elf32-powerpc Disassembly of section .text: 04000000 <version_string-0x4>: 4000000: 27 05 19 56 dozi r24,r5,6486 ** Post-patch build-x405g-post/u-boot: file format elf32-powerpc Disassembly of section .text: 04000000 <version_string-0x8>: 4000000: 48 00 21 01 bl 4002100 <_start> 4000004: 27 05 19 56 dozi r24,r5,6486 Comments are very much welcome. All the best, Rommel During RAM boot first instruction at offset 0 of load the load address should be a branch to _start. Signed-off-by: Rommel G Custodio <sessyargc@gmail.com> --- arch/powerpc/cpu/ppc4xx/start.S | 5 +++++ boards.cfg | 2 +- 2 files changed, 6 insertions(+), 1 deletion(-)