u-boot.git/arch/nios2, branch v2015.01

Kbuild: introduce Makefile in arch/$ARCH/

2014-12-08T14:35:45Z

Introduce a Makefile under arch/$ARCH/ and include it in the top Makefile (similar to Linux kernel). This allows further refactoringi like moving architecture-specific code out of global makefiles, deprecating config variables (CPU, CPUDIR, SOC) or deprecating arch/$ARCH/config.mk. In contrary to Linux kernel, U-Boot defines the ARCH variable by Kconfig, thus the arch Makefile can only included conditionally after the top config.mk. Signed-off-by: Daniel Schwierzeck Acked-by: Masahiro Yamada

fdt: Allow ft_board_setup() to report failure

2014-11-21T03:43:15Z

This function can fail if the device tree runs out of space. Rather than silently booting with an incomplete device tree, allow the failure to be detected. Unfortunately this involves changing a lot of places in the code. I have not changed behvaiour to return an error where one is not currently returned, to avoid unexpected breakage. Eventually it would be nice to allow boards to register functions to be called to update the device tree. This would avoid all the many functions to do this. However it's not clear yet if this should be done using driver model or with a linker list. This work is left for later. Signed-off-by: Simon Glass Acked-by: Anatolij Gustschin

kconfig: remove redundant "string" type in arch and board Kconfigs

2014-09-13T20:43:55Z

Now the types of CONFIG_SYS_{ARCH, CPU, SOC, VENDOR, BOARD, CONFIG_NAME} are specified in arch/Kconfig. We can delete the ones in arch and board Kconfig files. This commit can be easily reproduced by the following command: find . -name Kconfig -a ! -path ./arch/Kconfig | xargs sed -i -e ' /config[[:space:]]SYS_$ARCH\|CPU\|SOC\|\VENDOR\|BOARD\|CONFIG_NAME$/ { N s/\n[[:space:]]*string// } ' Signed-off-by: Masahiro Yamada

nios2: link to CONFIG_SYS_MONITOR_BASE and remove text_base hook

2014-08-30T09:48:43Z

This patch changes the link script to base at CONFIG_SYS_MONITOR_BASE. Then we can remove the text_base hook in nios2-generic board. Signed-off-by: Thomas Chou

nios2: move nios2.h to arch asm directory

2014-08-30T09:48:43Z

The nios2.h is nios2 cpu specific, and should go arch asm directory. Signed-off-by: Thomas Chou

nios2: divide nios2-io.h into each specific drivers and remove it

2014-08-30T09:48:43Z

The nios2-io.h defines hardware registers and bits of several FPGA IP cores. It could be divided in to the specific drivers, including altera timer, altera sysid, altera uart and altera jtag uart. The altera pio and altera spi drivers use their own hardware definitions. The removal of nios2-io.h will help modularity and maintenance. Signed-off-by: Thomas Chou

nios2: remove EPCS driver

2014-08-24T03:28:19Z

The Altera EPCS is SPI flash. We have been using SPI flash driver to access EPCS for years. The old EPCS driver could be removed. Signed-off-by: Thomas Chou

nios2: add generic board support

2014-08-24T03:28:10Z

This patch implements the generic board init as described in doc/README.generic-board. Signed-off-by: Thomas Chou Signed-off-by: Scott McNutt Reviewed-by: Stefan Roese

nios2: remove obsolete PCI5441 and PK1C20 boards

2014-08-24T03:27:57Z

Signed-off-by: Thomas Chou

nios2: Fix printf size_t format related warnings (again...)

2014-08-24T03:27:31Z

When compiling the current code on GCC 4.8.3, the following warnings appear: warning: format '%zu' expects argument of type 'size_t', but argument 2 has type 'long unsigned int' [-Wformat=] There were many mails about such warnings on different architectures. This patch limits itself to the nios2 architecture. The problem is that for the size_t (%zu, %zd, ...) arguments of printf GCC does not verify the type match to size_t type. It verifies the type match to the compiler-defined __SIZE_TYPE__ type. Thus, if size_t is defined different from __SIZE_TYPE__ - warnings inevitably appear. There is a comment by Thomas Chou to the (rejected) patch: http://patchwork.ozlabs.org/patch/272102/ which explains that the older GCC toolchains (gcc-3.4.6 and gcc-4.1.2) expect size_t to be "unsigned long" and the newer expect it to be "unsigned int". Thus, no matter how we define size_t - either way warnings appear when using some GCC version. By rejecting that patch, a choice was made to prefer older GCC versions and leave the warnings when building with the newer toolchains. Personally, I disagree with this choice... In any case, this patch proposes a way to fix the warnings for any GCC version. Just define size_t using the __SIZE_TYPE__ compiler-defined type and the type verification will pass. I tested that this fixes the warning on GCC 4.8.3. I don't have an older toolchain to test with, but __SIZE_TYPE__ was definitely defined in GCC 3.4.6, so it should work there too. Signed-off-by: Vasili Galka Signed-off-by: Thomas Chou