u-boot.git/arch/arc/Kconfig, branch v2016.01

arc: make AXS101 default platform

2015-09-07T10:38:24Z

This fixes building in automated flow that doesn't use defconfigs. See discussion on that topic here: http://patchwork.ozlabs.org/patch/502558/ See similar patches for other architectures/platforms here: [1] http://git.denx.de/?p=u-boot.git;a=commit;h=ff560a13056a565a4e9ce1761bd04276a3cace88 [2] http://git.denx.de/?p=u-boot.git;a=commit;h=589907e2c187ec69b351c38ccda36730d25ab5d6 And while at it add missing shell prompt to axs103. Cc: Tom Rini Cc: Joe Hershberger Cc: Masahiro Yamada Signed-off-by: Alexey Brodkin

Move default y configs out of arch/board Kconfig

2015-06-26T02:17:55Z

Some archs/boards specify their own default by pre-defining the config which causes the Kconfig system to mix up the order of the configs in the defconfigs... This will cause merge pain if allowed to proliferate. Remove the configs that behave this way from the archs. A few configs still remain, but that is because they only exist as defaults and do not have a proper Kconfig entry. Those appear to be: SPIFLASH DISPLAY_BOARDINFO Signed-off-by: Joe Hershberger [trini: rastaban, am43xx_evm_usbhost_boot, am43xx_evm_ethboot updates, drop DM_USB from MSI_Primo81 as USB_MUSB_SUNXI isn't converted yet to DM] Signed-off-by: Tom Rini

arc: remove dummy target

2015-05-13T16:20:35Z

TARGET_DUMMY was introduced to resolve the same problem as commit "arch: Make board selection choices optional" http://git.denx.de/?p=u-boot.git;a=commit;h=a26cd04920dc069fd6e91abb785426cf6c29f45f Latter implementation is much cleaner and appropriate. And anyways TARGET_DUMMY is no longer required. Signed-off-by: Alexey Brodkin Acked-by: Joe Hershberger

arch: Make board selection choices optional

2015-05-12T22:10:02Z

By making the board selections optional, every defconfig will include the board selection when running savedefconfig so if a new board is added to the top of the list of choices the former top's defconfig will still be correct. Signed-off-by: Joe Hershberger Cc: Masahiro Yamada Acked-by: Stephen Warren Cc: Tom Rini

arc: minor fixes in Kconfig

2015-04-03T06:47:49Z

[1] Fix misspeling in ARC_CACHE_LINE_SHIFT dependency, now cache-line lenth selection is correctly enabled if either I$ or D$ are enabled. [2] Add dummy entry to target list to make sure target type is always mentioned in defconfig. Otherwise defconfig for the first target in the list will not have target name and later on with addition of the new target on top of the list in Kconfig will lead to corrupted configuration expanded from defconfig. Signed-off-by: Alexey Brodkin

arc: introduce U-Boot port for ARCv2 ISA

2015-02-13T06:17:51Z

ARC HS and ARC EM are new cores based on ARCv2 ISA which is binary incompatible with ISAv1 (AKA ARCompact). Significant difference between ISAv2 and v1 is implementation of interrupt vector table. In v1 it is implemented in the same way as on many other architectures - as a special location where user may put whether code executed in place (if machine word of space is enough) or jump to a full-scale interrupt handler. In v2 interrupt table is just an array of adresses of real interrupt handlers. That requires a separate section for IVT that is not encoded as code by assembler. This change adds support for following cores: * ARC EM6 (simple 32-bit microcontroller without MMU) * ARC HS36 (advanced 32-bit microcontroller without MMU) * ARC HS38 (advanced 32-bit microcontroller with MMU) As a part of ARC HS38 new version of MMU (v4) was introduced. Also this change adds AXS131 board which is the same DW ARC SDP base board but with ARC HS38 CPU tile. Signed-off-by: Alexey Brodkin

arc: build libgcc in U-Boot

2015-02-09T13:41:20Z

This way we may have very limited set of functions implemented so we save some space. Also it allows us to build U-Boot for any ARC core with the same one toolchain because we don't rely on pre-built libgcc. For example: * we may use little-endian toolchain but build U-Boot for ether endianess * we may use non-multilibbed uClibc toolchain but build U-Boot for whatever ARC CPU flavour that current GCC supports Private libgcc built from generic C implementation contributes only 144 bytes to .text section so we don't see significant degradation of size: --->8--- $ arc-linux-size u-boot.libgcc-prebuilt text data bss dec hex filename 222217 24912 214820 461949 70c7d u-boot.libgcc-prebuilt $ arc-linux-size u-boot.libgcc-private text data bss dec hex filename 222361 24912 214820 462093 70d0d u-boot.libgcc-private --->8--- Also I don't notice visible performance degradation compared to pre-built libgcc (where at least "*div*" functions are had-written in assembly) on typical operations of downloading 10Mb uImage over TFTP and bootm. Signed-off-by: Alexey Brodkin

arc: add selection of endianess in Kconfig

2015-02-09T13:41:20Z

This change allows to keep board description clean and minimalistic. This is especially helpful if one board may house different CPUs with different features. It is applicable to both FPGA-based boards or those that have CPUs mounted on interchnagable daughter-boards. Signed-off-by: Alexey Brodkin

arc: select cache settings via menuconfig

2015-02-09T13:41:20Z

arc: add more flavours of ARC700 series CPU

2015-02-09T13:41:20Z

Now we may select a particular version of ARC700: * ARC750D or * ARC770D It allows more flexible (or more fine tuned) configuration of U-Boot. Before that change we relied on minimal configuration but now we may use specific features of each CPU. Moreover allows us to escape manual selection of options that exist in both CPUs but may have say different version like MMUv2 in ARC750D vs MMUv3 in ARC770D. Signed-off-by: Alexey Brodkin