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* | Replace __bss_end__ with __bss_endSimon Glass2013-03-15-2/+2
|/ | | | | | | | | | | | | Note this is a tree-wide change affecting multiple architectures. At present we use __bss_start, but mostly __bss_end__. This seems inconsistent and in a number of places __bss_end is used instead. Change to use __bss_end for the BSS end symbol throughout U-Boot. This makes it possible to use the asm-generic/sections.h file on all archs. Signed-off-by: Simon Glass <sjg@chromium.org>
* ppc: arm: Move sdhc_clk into arch_global_dataSimon Glass2013-02-04-3/+3
| | | | | | | This is used by both powerpc and arm, but I think it still qualifies as architecture-specific. Signed-off-by: Simon Glass <sjg@chromium.org>
* arm: Move lastinc to arch_global_dataSimon Glass2013-02-01-11/+11
| | | | | | Move this field into arch_global_data and tidy up. Signed-off-by: Simon Glass <sjg@chromium.org>
* arm: Move tbl to arch_global_dataSimon Glass2013-02-01-11/+14
| | | | | | Move this field into arch_global_data and tidy up. Signed-off-by: Simon Glass <sjg@chromium.org>
* Merge branch 'u-boot-imx/master' into 'u-boot-arm/master'Albert ARIBAUD2013-01-14-45/+0
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| * mx31/mx35/mx51/mx53/mx6: add watchdogTroy Kisky2013-01-13-45/+0
| | | | | | | | | | | | | | Use a common watchdog driver for all these cpus. Signed-off-by: Troy Kisky <troy.kisky@boundarydevices.com> Acked-by: Stefano Babic <sbabic@denx.de>
* | arm: move C runtime setup code in crt0.SAlbert ARIBAUD2013-01-08-57/+14
|/ | | | | | | | | | | | | | | | | | Move all the C runtime setup code from every start.S in arch/arm into arch/arm/lib/crt0.S. This covers the code sequence from setting up the initial stack to calling into board_init_r(). Also, rewrite the C runtime setup and make functions board_init_*() and relocate_code() behave according to normal C semantics (no jumping across the C stack any more, etc). Some SPL targets had to be touched because they use start.S explicitly or for some reason; the relevant maintainers and custodians are cc:ed. Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
* arm1136: Fix enable_caches()Benoît Thébaudeau2012-11-10-10/+12
| | | | | | | | enable_caches() did not enable icache if CONFIG_SYS_ICACHE_OFF was not defined but CONFIG_SYS_DCACHE_OFF was. Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com> Cc: Albert Aribaud <albert.u.boot@aribaud.net>
* MX35: add support for woodburn boardStefano Babic2012-10-26-0/+138
| | | | | | | | | | | | | | | | | | | | | The woodburn board is based on the MX35 SOC. Support for both external (NOR) and internal (SD Card) boot mode are added. It uses the generic SPL framework to implement the internal boot mode. The following peripherals are supported: - Ethernet (FEC) - SD Card - NAND (512 MB) - NOR Flash In the internal boot mode, a simple imximage header is generated to set the address in internal RAM where the SOC must copy the SPL code. The initial setup is then demanded to the SPL itself. Signed-off-by: Stefano Babic <sbabic@denx.de>
* ARM: Add SPL target to arm1136Stefano Babic2012-10-26-0/+3
| | | | | | | | The patch adds SPL for the arm1136 architecture and inserts SPL (the produced binary) to clobber target in the main Makefile. Signed-off-by: Stefano Babic <sbabic@denx.de>
* MX35: Add soc_boot_mode and soc_boot_device to MX35Stefano Babic2012-10-26-0/+137
| | | | | | | The functions are required to use the generic SPL Framework. Signed-off-by: Stefano Babic <sbabic@denx.de>
* ARM: Fix start.S when used with SPL in arm1136Stefano Babic2012-10-26-11/+20
| | | | | | | | This patch modifies start.S for the arm1136 to make it conform to start.S in armv7 architecture, to make it usable if the SPL framework is used. Signed-off-by: Stefano Babic <sbabic@denx.de>
* mx35: Fix eSDHC clocksBenoît Thébaudeau2012-10-16-2/+12
| | | | | | | | | | | | | | Each eSDHC instance has a dedicated clock. gd->sdhc_clk must also be set accordingly. This is good for the case only a single SDHC instance is used (initialization made with fsl_esdhc_mmc_init()). A future patch will fix the multi-instance use case (initialization made directly with fsl_esdhc_initialize()). Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com> Cc: Stefano Babic <sbabic@denx.de> Cc: Eric Bénard <eric@eukrea.com> Cc: Otavio Salvador <otavio@ossystems.com.br>
* mx35: Define MAX and AIPS registersBenoît Thébaudeau2012-10-15-1/+32
| | | | | Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com> Cc: Stefano Babic <sbabic@denx.de>
* imx: Use MXC_I2C_CLK in imx i2c driverMatthias Weisser2012-10-15-0/+2
| | | | | | | | i2c didn't work on imx25 due to missing MXC_IPG_PERCLK. Now using MXC_I2C_CLK on all imx systems using i2c. Signed-off-by: Matthias Weisser <weisserm@arcor.de> Acked-by: Stefano Babic <sbabic@denx.de>
* arm: Fixed the offset for the no relocation.Zhong Hongbo2012-10-04-0/+1
| | | | | | | | When the u-boot address of destination equal to __start, no relocation. relocation offset(r9) = 0. Signed-off-by: Zhong Hongbo <bocui107@gmail.com> Tested-by: Stefano Babic <sbabic@denx.de>
* mx31: Define default SoC input clock frequenciesBenoît Thébaudeau2012-09-06-10/+10
| | | | | | | | | | | Define default SoC input clock frequencies for i.MX31 in order to get rid of duplicated definitions. Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com> Cc: Stefano Babic <sbabic@denx.de> Cc: Fabio Estevam <fabio.estevam@freescale.com> Cc: Wolfgang Denk <wd@denx.de> Cc: Helmut Raiger <helmut.raiger@hale.at>
* Fix mx31_decode_pllBenoît Thébaudeau2012-09-06-3/+5
| | | | | | | | The MFN bit-field of the PLL registers represents a signed value. See the reference manual. Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com> Cc: Stefano Babic <sbabic@denx.de>
* mx35 timer: Switch to 32-kHz sourceBenoît Thébaudeau2012-09-06-17/+27
| | | | | | | | | | Switch the mx35 timer driver to the 32-kHz clock source to avoid calling mxc_get_clock() again and again, and to be consistent with the timer drivers of other i.MX SoCs. Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com> Cc: Stefano Babic <sbabic@denx.de> Acked-by: Stefano Babic <sbabic@denx.de>
* mx35: Define default SoC input clock frequenciesBenoît Thébaudeau2012-09-06-28/+17
| | | | | | | | | Define default SoC input clock frequencies for i.MX35 in order to get rid of duplicated definitions. Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com> Cc: Stefano Babic <sbabic@denx.de> Acked-by: Stefano Babic <sbabic@denx.de>
* mx35: Fix clock dividersBenoît Thébaudeau2012-09-06-30/+18
| | | | | | | | | The clock dividers that were used do not match at all the reference manual. They were either completely broken, or came from an early silicon revision incompatible with the current one. Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com> Cc: Stefano Babic <sbabic@denx.de>
* mx35: Fix decode_pllBenoît Thébaudeau2012-09-06-3/+6
| | | | | | | | The MFN bit-field of the PLL registers represents a signed value. See the reference manual. Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com> Cc: Stefano Babic <sbabic@denx.de>
* mx35: Move clock enums to clock.hBenoît Thébaudeau2012-09-01-2/+2
| | | | | | Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com> Cc: Stefano Babic <sbabic@denx.de> Acked-by: Stefano Babic <sbabic@denx.de>
* mx35 iomux: Remove unused macroBenoît Thébaudeau2012-09-01-2/+0
| | | | | | Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com> Cc: Stefano Babic <sbabic@denx.de> Acked-by: Stefano Babic <sbabic@denx.de>
* mx35: Add cpu_mmc_init()Benoît Thébaudeau2012-09-01-1/+14
| | | | | | | | Add cpu_mmc_init() function to make it easy to init a single eSDHC instance. Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com> Cc: Stefano Babic <sbabic@denx.de> Acked-by: Stefano Babic <sbabic@denx.de>
* ARM1136: Fix cache range checksBenoît Thébaudeau2012-07-21-3/+3
| | | | | | | | | | | | | | bad_cache_range actually returned true if the range was OK, but it was used according to its name, which resulted in all valid dcache range invalidate/flush operations being dropped. Hence, most DMA transfers resulted in garbage data. This patch renames this function according to what it does, and it fixes the interpretation of its return value by other functions. The chosen naming is the same as for ARM926EJ-S in order to be consistent. Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com> Cc: Albert Aribaud <albert.u.boot@aribaud.net> Acked-by: Stefano Babic <sbabic@denx.de>
* arm: Fix to mistake clean the memory spaceZhong Hongbo2012-07-20-3/+5
| | | | | | | | | | | In currently, when __bss_start is equal to __bss_end__, The bss loop will clear all the things in memory space. But just only when __bss_end__ greater than __bss_start__, we do the clear bss section operation. Signed-off-by: Zhong Hongbo <bocui107@gmail.com> Acked-by: Andreas Bießmann <andreas.devel@googlemail.com>
* ARM1136: MX35: Make asm routines volatile in cache opsStefano Babic2012-04-16-10/+12
| | | | | | | | | | As well as pushed for ARM926EJS, we certainly don't want the compiler to reorganise the code for dcache flushing Fix checkpatch warnings as well. Signed-off-by: Stefano Babic <sbabic@denx.de> CC: Marek Vasut <marex@denx.de> CC: Albert Aribaud <albert.u.boot@aribaud.net>
* ARM1136: add cache flush and invalidate operationsAnatolij Gustschin2012-04-16-0/+95
| | | | | | | | | | | | | | | | | | Since commit 5c1ad3e6f8ae578bbe30e09652f1531e9bc22031 (net: fec_mxc: allow use with cache enabled) the FEC_MXC driver uses flush_dcache_range() and invalidate_dcache_range() functions. This driver is also configured for ARM1136 based 'flea3' and 'mx35pdk' boards which currently do not build as there are no ARM1136 specific flush_dcache_range() and invalidate_dcache_range() functions. Add various ARM1136 cache functions to fix building for 'flea3' and 'mx35pdk'. Signed-off-by: Anatolij Gustschin <agust@denx.de> Signed-off-by: Stefano Babic <sbabic@denx.de> Cc: Fabio Estevam <fabio.estevam@freescale.com> CC: Mike Frysinger <vapier@gentoo.org> CC: Marek Vasut <marex@denx.de> Acked-by: Marek Vasut <marex@denx.de>
* arm: Use common .lds file where possibleSimon Glass2012-03-30-89/+0
| | | | | | | | | | Each cpu directory currently has its own .lds file. This is only needed in most cases because the start.o file is in a different subdir. Now that we can factor out this difference, we can move most cpus over to the common .lds file. Signed-off-by: Simon Glass <sjg@chromium.org>
* mx31: add "ARM11P power gating" to get_reset_causeHelmut Raiger2012-03-27-0/+2
| | | | | | Add missing reset reason 7 to get_reset_cause(). Signed-off-by: Helmut Raiger <helmut.raiger@hale.at>
* mx35: generic: Let get_reset_cause be defined only when ↵Fabio Estevam2012-02-27-1/+1
| | | | | | | | | CONFIG_DISPLAY_CPUINFO is selected get_reset_cause() function is only used inside print_cpuinfo(), so let it be defined only when CONFIG_DISPLAY_CPUINFO is selected. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
* MX31: add missing get_tbclk()Stefano Babic2012-02-27-0/+9
| | | | | Signed-off-by: Stefano Babic <sbabic@denx.de> CC: Helmut Raiger <helmut.raiger@hale.at>
* MX35: add missing get_ticks() and get_tbclk()Stefano Babic2012-02-27-39/+64
| | | | | | | | commit f31a911fe (arm, post: add missing post_time_ms for arm) enables get_ticks and get_tbclk for all arm based boards, MX5/MX6 have not yet implemented. Signed-off-by: Stefano Babic <sbabic@denx.de>
* mmc: access mxcmmc from mx31 boardsHelmut Raiger2012-02-12-0/+1
| | | | | | | | | | | | | | | | | This patch modifies mxcmmc.c to be used not only by i.MX27 but also by i.MX31 boards. Both use the same SD controller, but have different clock set-ups. The i.MX27 imx_get_XXXclock functions are made static to generic.c and a public mxc_get_clock() function is provided. Pins, base address and prototypes for an i.MX31 specific board_init_mmc() are provided. Some of the i.MX27 clock getters are unused and marked as such to avoid warnings (./MAKEALL -s mx27), but the code was left in for future use. Signed-off-by: Helmut Raiger <helmut.raiger@hale.at> Acked-by: Stefano Babic <sbabic@denx.de>
* net: imx: Add multi-FEC support for imx_get_mac_from_fuseFabio Estevam2012-01-16-1/+1
| | | | | | | | | | Add multi-FEC support for imx_get_mac_from_fuse by passing dev_id as a parameter. This feature is important on mx28 SoC for example that has two FEC ports. Cc: Ben Warren <biggerbadderben@gmail.com> Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Acked-by: Stefano Babic <sbabic@denx.de>
* MX: serial_mxc: cleanup removing nasty #ifdefStefano Babic2011-12-06-4/+0
| | | | | | | | | | | | | | | | | | The serial driver for iMX SOCs is continuosly changed if a new SOC or not yet used port is used. CONFIG_SYS_<SOC>_<UART Port> defines were used only to find the base address for the selected UART. Instead of that, move the base address to the board configuration file and drop all #ifdef from driver. Signed-off-by: Stefano Babic <sbabic@denx.de> CC: Marek Vasut <marek.vasut@gmail.com> CC: Wolfgang Denk <wd@denx.de> CC: Fabio Estevam <fabio.estevam@freescale.com> CC: Helmut Raiger <helmut.raiger@hale.at> CC: John Rigby <jcrigby@gmail.com> CC: Matthias Weisser <weisserm@arcor.de> CC: Jason Liu <jason.hui@linaro.org> Acked-by: Jason Liu <jason.hui@linaro.org>
* mx31: Fix checkpatch warnings in generic.cFabio Estevam2011-11-11-2/+2
| | | | | | | Fix checkpatch warnings in generic.c. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Acked-by: Stefano Babic <sbabic@denx.de>
* mx31: Use proper IO accessor for GPR registerFabio Estevam2011-11-11-2/+3
| | | | | | | Use proper IO accessor for GPR register. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Acked-by: Stefano Babic <sbabic@denx.de>
* mx31: Remove duplicate definition for GPR registerFabio Estevam2011-11-11-4/+2
| | | | | | | GPR register definition is already available at imx-regs.h, so remove the duplication. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Acked-by: Stefano Babic <sbabic@denx.de>
* mx31: define pins and init for UART2 and CSPI3Helmut Raiger2011-11-03-0/+15
| | | | | Signed-off-by: Helmut Raiger <helmut.raiger@hale.at> Acked-by: Stefano Babic <sbabic@denx.de>
* mx31: Introduce mx31_set_gpr functionFabio Estevam2011-11-03-0/+15
| | | | | | | | | | Introduce mx31_set_gpr function for setting the GPR (General Purpose Register) on MX31. This function can be useful for setting a group of pins into tied to some specific peripherals. Reuse this function from the linux kernel. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
* MX35: add reset cause as provided by other i.MXStefano Babic2011-11-03-2/+29
| | | | Signed-off-by: Stefano Babic <sbabic@denx.de>
* Reduce build timesWolfgang Denk2011-11-03-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | U-Boot Makefiles contain a number of tests for compiler features etc. which so far are executed again and again. On some architectures (especially ARM) this results in a large number of calls to gcc. This patch makes sure to run such tests only once, thus largely reducing the number of "execve" system calls. Example: number of "execve" system calls for building the "P2020DS" (Power Architecture) and "qong" (ARM) boards, measured as: -> strace -f -e trace=execve -o /tmp/foo ./MAKEALL <board> -> grep execve /tmp/foo | wc -l Before: After: Reduction: ================================== P2020DS 20555 15205 -26% qong 31692 14490 -54% As a result, built times are significantly reduced, typically by 30...50%. Signed-off-by: Wolfgang Denk <wd@denx.de> Cc: Andy Fleming <afleming@gmail.com> Cc: Kumar Gala <galak@kernel.crashing.org> Cc: Albert Aribaud <albert.aribaud@free.fr> cc: Graeme Russ <graeme.russ@gmail.com> cc: Mike Frysinger <vapier@gentoo.org> Tested-by: Graeme Russ <graeme.russ@gmail.com> Tested-by: Matthias Weisser <weisserm@arcor.de> Tested-by: Sanjeev Premi <premi@ti.com> Tested-by: Simon Glass <sjg@chromium.org> Tested-by: Macpaul Lin <macpaul@gmail.com> Acked-by: Mike Frysinger <vapier@gentoo.org>
* imx: fix coding styleFabio Estevam2011-10-27-10/+15
| | | | | | | | | Fix checkpatch warning and errors in several i.MX related files. While at it also address a checkpatch warning at arch/arm/cpu/armv7/mx5/soc.c regarding the usage of extern in a C file. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
* mx31: provide readable WEIM CS accessorHelmut Raiger2011-10-27-0/+11
| | | | | | | | | | | | setup_weimcs() and some macros are added to support the setup for i.MX31 WEIM chip selects. As a compromise between verbosity and readability an ASCII-art'ish bit comment is used instead of bitfields. All i.MX31 boards have been patched to use this approach using a helper program to verify the changes. Signed-off-by: Helmut Raiger <helmut.raiger@hale.at> Acked-by: Stefano Babic <sbabic@denx.de>
* mx31: make HSP clock for mx3fb driver availableHelmut Raiger2011-10-13-13/+27
| | | | | | | | | | | | This additionally updates mx31/generic.c by - replacing __REG() macro accesses with readl() and writel() - providing macros for PDR0 and PLL bit accesses Signed-off-by: Helmut Raiger <helmut.raiger@hale.at> Acked-by: Marek Vasut <marek.vasut@gmail.com> Cc: Stefano Babic <sbabic@denx.de> Acked-by: Stefano Babic <sbabic@denx.de> Signed-off-by: Anatolij Gustschin <agust@denx.de>
* MX31: Disable watchdog during low-power modesFabio Estevam2011-09-30-2/+2
| | | | | | | | | | | Turn on the watchdog WDZST bit so that watchdog timer does not count during low power modes. Prior to applying this patch mx31pdk board got watchdog resets because when it booted in the Linux prompt and there was no activity, the system entered into idle mode while watchdog timer was still active. Fix this by disabling watchdog timer during idle mode. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
* MX31: Improve readability for reset causeFabio Estevam2011-09-30-1/+1
| | | | | | | | | Currently the reset cause is printed like: CPU: Freescale i.MX31 rev 2.0 at 531 MHz.Reset cause: POR Improve readability by adding a new line like it is done on other i.MX boards. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
* MX31: fix missing mxc_get_clk() callStefano Babic2011-09-07-0/+1
| | | | | | Add missing case to be used in common MXC code. Signed-off-by: Stefano Babic <sbabic@denx.de>
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