u-boot.git/arch/blackfin/cpu, branch v2011.03

Move DECLARE_GLOBAL_DATA_PTR to file scope

2010-12-21T10:33:36Z

It can be optimised out by the compiler otherwise resulting in obscure errors like a board not booting. This has been documented in README since 2006 when these were first fixed up for GCC 4.x. Signed-off-by: John Rigby Fix some additional places. Signed-off-by: Wolfgang Denk Acked-By: Albert ARIBAUD

Blackfin: drop initcode.o from combined object

2010-11-20T00:17:57Z

We explicitly link in the initcode.o in the Blackfin linker script, so there is no need to merge it into the main common object for the linker to pull in itself. This also fixes duplicate symbol errors with the new partial linking logic. Signed-off-by: Mike Frysinger

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

Blackfin: workaround anomaly 05000440

2010-10-15T00:23:26Z

We cannot rely on the syscontrol rom func to program PLL_DIV with anomaly 05000440 is in effect, so manually program the MMR when necessary. Signed-off-by: Mike Frysinger

Blackfin: cmd_gpio: accept upper case pin names

2010-10-02T20:00:40Z

The intention all along was to accept pin names irrelevant of their case. But I guess I forgot to test/implement support for that. Signed-off-by: Mike Frysinger

Blackfin: cmd_gpio: return gpio value to caller

2010-10-02T20:00:39Z

Make the GPIO command usable in a scripting environment by returning the GPIO value rather than always 0. Signed-off-by: Mike Frysinger

Blackfin: cmd_gpio: document/extend input sub-option

2010-10-02T20:00:39Z

The input sub command was missing from the help text, and it didn't show the actual value currently read on the GPIO. This allows people to read the value of input pins. Signed-off-by: Mike Frysinger

Blackfin: gpio: use common usage func

2010-07-29T17:29:52Z

Signed-off-by: Mike Frysinger

Blackfin: jtag-console: handle newline stuffing

2010-07-25T19:17:34Z

Serial devices currently have to manually stuff \r after every \n found, but this is a bit more difficult with the jtag console since we process everything in chunks of 4 bit. So we have to scan & stuff the whole string rather than what most serial drivers do which is output on a byte per byte basis. Signed-off-by: Mike Frysinger

Blackfin: jtag-console: add debug markers

2010-07-25T19:17:31Z

While we're in here, add some useful debug points. We need custom debug statements because we need the output to only go to the serial port. If we used the standard debug helpers, the output would also go to the stdout (which would be the jtag console) and make it hard to figure out what is going where exactly. Signed-off-by: Mike Frysinger