u-boot.git/arch/powerpc/lib, branch v2010.12

powerpc/85xx: Introduce CONFIG_SYS_EXTRA_ENV_RELOC

2010-11-30T21:09:09Z

Some systems need to relocate the env_addr pointer early because the location it points to will get invalidated before env_relocate is called. One example is on systems that might use a L2 or L3 cache in SRAM mode and initialize that cache from SRAM mode back to being a cache in cpu_init_r. We set this on the 85xx boards that have support for NAND, SPI, or SDHC/MMC boot support as they use a secondary cache in SRAM mode and need the env_addr pointer relocated since we change from SRAM to normal cache mode in cpu_init_r. Also removed CONFIG_SYS_SPL as its not used anywhere. Signed-off-by: Kumar Gala

WINBOND_83C553: enable only on boards that actually use it.

2010-11-26T21:08:18Z

So far, only the BAB7xx board would call the initialise_w83c553f() function for the WINBOND 83C553 chip, even though some other boards (HIDDEN_DRAGON, Sandpoint8240, Sandpoint8245) enabled it in their board configuration. These boards were also missing other config settings needed for that, which resulted in build errors like this: drivers/pci/libpci.o:(.got2+0x84): undefined reference to `ide_bus_offset' Switch arch/powerpc/lib/board.c to call initialise_w83c553f() not on a per-board base, but when a WINBOND_83C553 in enabled in a configuration (like BAB7xx), and disable it in the boards that had this set so far. Signed-off-by: Wolfgang Denk Cc: Yusdi Santoso Cc: Jim Thompson Acked-by: Stefan Roese

Switch from archive libraries to partial linking

2010-11-17T20:02:18Z

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

ppc: Don't initialize write protected NOR flashes

2010-10-20T19:58:16Z

If a NOR flash is write protected it can not be initialized/detected so add the ability for boards to skip NOR initialization on bootup. A board can skip NOR initialization by implementing the board_flash_wp_on() function. Signed-off-by: John Schmoller Signed-off-by: Peter Tyser CC: sr@denx.de Acked-by: Stefan Roese

powerpc: Cleanup BOOTFLAG_* references

2010-10-18T20:38:56Z

Now that warm booting is not supported, there isn't a need for the BOOTFLAG_COLD and BOOTFLAG_WARM defines, so remove them. Note that this change makes the board info bd_bootflags field useless. It will always be set to 0, but we leave it around so that we don't break the board info structure that some OSes are expecting to be passed from U-Boot. Signed-off-by: Peter Tyser

Rename TEXT_BASE into CONFIG_SYS_TEXT_BASE

2010-10-18T20:07:10Z

The change is currently needed to be able to remove the board configuration scripting from the top level Makefile and replace it by a simple, table driven script. Moving this configuration setting into the "CONFIG_*" name space is also desirable because it is needed if we ever should move forward to a Kconfig driven configuration system. Signed-off-by: Wolfgang Denk

ppc: Conditionally compile bat_rw.c

2010-10-13T19:44:10Z

Only a few PPC boards actually use the common BAT manipulation functions, so only compile it for them. Signed-off-by: Peter Tyser

powerpc: Zero out board info struct on bootup

2010-10-12T21:00:30Z

This puts the board info struct in a known state and allows the removal of other code which initialized board info fields to 0. Signed-off-by: Peter Tyser

PowerPC: change board specific early pci_init() into generic.

2010-10-06T20:37:35Z

Signed-off-by: Andre Schwarz

PCU_E: remove code for yet another corpse

2010-10-06T20:22:24Z

The PCU_E board has long reached EOL, and support for it is no longer relevant in current versions of U-Boot. Remove it. Signed-off-by: Wolfgang Denk