6d8962e814
Before this commit, weak symbols were not overridden by non-weak symbols found in archive libraries when linking with recent versions of binutils. As stated in the System V ABI, "the link editor does not extract archive members to resolve undefined weak symbols". This commit changes all Makefiles to use partial linking (ld -r) instead of creating library archives, which forces all symbols to participate in linking, allowing non-weak symbols to override weak symbols as intended. This approach is also used by Linux, from which the gmake function cmd_link_o_target (defined in config.mk and used in all Makefiles) is inspired. The name of each former library archive is preserved except for extensions which change from ".a" to ".o". This commit updates references accordingly where needed, in particular in some linker scripts. This commit reveals board configurations that exclude some features but include source files that depend these disabled features in the build, resulting in undefined symbols. Known such cases include: - disabling CMD_NET but not CMD_NFS; - enabling CONFIG_OF_LIBFDT but not CONFIG_QE. Signed-off-by: Sebastien Carlier <sebastien.carlier@gmail.com> |
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| .. | ||
| Makefile | ||
| flash.c | ||
| mii_phy.c | ||
| readme | ||
| rpxsuper.c | ||
| rpxsuper.h | ||
readme
Hi, so this is the port to the Embedded Planet RPX Super Board. ATTENTION This code is only tested on the AY-Version, which is an early release with some hardware bugs. The main problem is that this board uses the default Hard Reset Configuration Word and not the 4 bytes located at start of FLASH because at 0xFE000000 is no FLASH. The FLASH consists out of 4 chips each 16bits wide. Be carefull, the bytes are swapped. So DQ0-7 is the high byte, DQ8-15 ist the low byte. The icache can only manually be enabled after reset. The FLASH and main SDRAM is working with icache enabled. The local SDRAM can only be used as data memory when icache is enabled. If U-Boot runs in local SDRAM, TFTP does not work. The functions in mii_phy.c are all working. Call mii_phy_discover() out of eth_init() and solve the linker error. I2C, RTC/NVRAM and PCMCIA are not working yet. TODO The 32MB local SDRAM is working but not shown in the startup messages of U-Boot. If you locate U-Boot or any other program to this area it won't run. Turning the ichache off does not solve this problem. As I won't buy another RPX Super there might be some little work to do for you getting this U-Boot port running on the final board. frank.morauf@salzbrenner.com