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* rename _end to __bss_end__Po-Yu Chuang2011-03-27-1/+1
| | | | | | | Currently, _end is used for end of BSS section. We want _end to mean end of u-boot image, so we rename _end to __bss_end__ first. Signed-off-by: Po-Yu Chuang <ratbert@faraday-tech.com>
* Switch from archive libraries to partial linkingSebastien Carlier2010-11-17-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* Rename TEXT_BASE into CONFIG_SYS_TEXT_BASEWolfgang Denk2010-10-18-1/+1
| | | | | | | | | | | | 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 <wd@denx.de>
* avr32: Add simple paging supportHaavard Skinnemoen2010-09-03-0/+20
| | | | | | | | | | | | | | | | | | Use the MMU hardware to set up 1:1 mappings between physical and virtual addresses. This allows us to bypass the cache when accessing the flash without having to do any physical-to-virtual address mapping in the CFI driver. The virtual memory mappings are defined at compile time through a sorted array of virtual memory range objects. When a TLB miss exception happens, the exception handler does a binary search through the array until it finds a matching entry and loads it into the TLB. The u-boot image itself is covered by a fixed TLB entry which is never replaced. This makes the 'saveenv' command work again on ATNGW100 and other boards using the CFI driver, hopefully without breaking any rules. Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
* avr32: Use uncached() macro to get an address for SDRAM initHaavard Skinnemoen2010-09-03-3/+1
| | | | | | | | | | | | | | The paging system which is required to set up caching properties has not yet been initialized when the SDRAM is initialized. So when the map_physmem() function is converted to return the physical address unchanged, the SDRAM initialization will break on some boards. The avr32-specific uncached() macro will return an address which will always cause uncached accessed to be made. Since this happens in the board code, using avr32-specific features should be ok, and will allow the SDRAM initialization to keep working. Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
* avr32: Move cpu/at32ap/* to arch/avr32/cpu/*Peter Tyser2010-04-13-1/+1
| | | | Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
* MIMC200: reduce LCD pixclockMark Jackson2009-08-11-1/+1
| | | | | | | | | The initial pixclock for the MIMC200 board is wrong (and causes screen corruption due to DMA underruns). This patch simply reduces the pixel clock to fix the problem. Signed-off-by: Mark Jackson <mpfj@mimc.co.uk>
* mimc200.c: fix too long lines added by f68378d6Anatolij Gustschin2009-07-26-12/+12
| | | | Signed-off-by: Anatolij Gustschin <agust@denx.de>
* Add LCD support to MIMC200 boardMark Jackson2009-07-26-0/+34
| | | | | | This patch updates the MIMC200 files to enable the LCD. Signed-off-by: Mark Jackson <mpfj@mimc.co.uk>
* Merge branch 'mimc200'Haavard Skinnemoen2009-03-23-73/+44
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| * Setup extra MIMC200 chip selectsMark Jackson2009-02-23-0/+14
| | | | | | | | | | | | | | | | | | | | | | Added code to setup the extra Flash and FRAM chip selects as used on the MIMC200 board. V2 moves the init code from the common "cpu.c" file into the board specific setup file. Signed-off-by: Mark Jackson <mpfj@mimc.co.uk> Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
| * MIMC200: tidy GCLK init codeMark Jackson2009-02-23-6/+8
| | | | | | | | | | | | | | | | | | | | | | Change the MIMC200 startup code to use the built-in (rather than hard-coded) funtions for setting up gclk outputs. We'll also move the code to the new, more-appropriate board_postclk_init() routine. Signed-off-by: Mark Jackson <mpfj@mimc.co.uk> Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
| * Merge branch 'mimc200' into nextHaavard Skinnemoen2009-02-23-1/+1
| |\ | | | | | | | | | | | | | | | | | | Conflicts: board/mimc/mimc200/mimc200.c include/configs/mimc200.h
| | * MIMC200 board now uses CONFIG_DISABLE_CONSOLEMark Jackson2008-10-05-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | Changed MIMC200 board setup and config to use CONFIG_DISABLE_CONSOLE. Also fixed default uImage location. Signed-off-by: Mark Jackson <mpfj@mimc.co.uk> Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
| * | Merge branch 'fixes' into cleanupsHaavard Skinnemoen2008-12-17-2/+1
| |\ \ | | |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: board/atmel/atngw100/atngw100.c board/atmel/atstk1000/atstk1000.c cpu/at32ap/at32ap700x/gpio.c include/asm-avr32/arch-at32ap700x/clk.h include/configs/atngw100.h include/configs/atstk1002.h include/configs/atstk1003.h include/configs/atstk1004.h include/configs/atstk1006.h include/configs/favr-32-ezkit.h include/configs/hammerhead.h include/configs/mimc200.h
| * | avr32: use board_early_init_r instead of board_init_infoHaavard Skinnemoen2008-09-01-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Replace the avr32-specific board_init_info hook by the standard board_early_init_r hook and make it optional. board_early_init_r() runs somewhat earlier than board_init_info used to do, but this isn't a problem for any of the in-tree boards. Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
| * | avr32: refactor the portmux/gpio codeHaavard Skinnemoen2008-09-01-67/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Separate the portmux configuration functionality from the GPIO pin control API. - Separate the controller-specific code from the chip-specific code. - Allow "ganged" port configuration (multiple pins at once). - Add more flexibility to the "canned" peripheral select functions: - Allow using more than 23 address bits, more chip selects, as well as NAND- and CF-specific pins. - Make the MACB SPEED pin optional, and choose between MII/RMII using a parameter instead of an #ifdef. - Make it possible to use other MMC slots than slot 0, and support different MMC/SDCard data bus widths. - Use more reasonable pull-up defaults; floating pins may consume a lot of power. - Get rid of some custom portmux code from the mimc200 board code. The old gpio/portmux API couldn't really handle its requirements, but the new one can. - Add documentation. The end result is slightly smaller code for all boards. Which isn't really the point, but at least it isn't any larger. This has been verified on ATSTK1002 and ATNGW100. I'd appreciate if the board maintainers could help me test this on their boards. In particular, the mimc200 port has lost a lot of code, so I'm hoping Mark can help me out. Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com> Cc: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com> Cc: Mark Jackson <mpfj@mimc.co.uk> Cc: Alex Raimondi <alex.raimondi@miromico.ch> Cc: Julien May <julien.may@miromico.ch> Changes since v1: * Enable pullup on NWAIT * Add missing include to portmux-pio.h * Rename CONFIG_PIO2 -> CONFIG_PORTMUX_PIO to match docs
* | | Fix all linker script to handle all rodata sectionsTrent Piepho2009-03-20-2/+1
| |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A recent gcc added a new unaligned rodata section called '.rodata.str1.1', which needs to be added the the linker script. Instead of just adding this one section, we use a wildcard ".rodata*" to get all rodata linker section gcc has now and might add in the future. However, '*(.rodata*)' by itself will result in sub-optimal section ordering. The sections will be sorted by object file, which causes extra padding between the unaligned rodata.str.1.1 of one object file and the aligned rodata of the next object file. This is easy to fix by using the SORT_BY_ALIGNMENT command. This patch has not be tested one most of the boards modified. Some boards have a linker script that looks something like this: *(.text) . = ALIGN(16); *(.rodata) *(.rodata.str1.4) *(.eh_frame) I change this to: *(.text) . = ALIGN(16); *(.eh_frame) *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) This means the start of rodata will no longer be 16 bytes aligned. However, the boundary between text and rodata/eh_frame is still aligned to 16 bytes, which is what I think the real purpose of the ALIGN call is. Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
* | Introduce netdev.h header file and remove externsBen Warren2008-09-02-2/+1
|/ | | | | | | This addresses all drivers whose initializers have already been moved to board_eth_init()/cpu_eth_init(). Signed-off-by: Ben Warren <biggerbadderben@gmail.com>
* avr32: Add MIMC200 boardMark Jackson2008-08-20-0/+323
The MIMC200 board is based on Atmel's NGW100 dev kit, but with an extra 8MByte FLASH and 128KByte FRAM. Signed-off-by: Mark Jackson <mpfj@mimc.co.uk> Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
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