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* mx53: Turn off child clocks before reconfigure perclk_rootFabio Estevam2011-11-04-0/+15
| | | | | | | | | | | | | | | | | | | | | | | | | In addition to ensuring that PERCLK remains at least 2.5 times slower than the AHB clock, certain steps need to be followed to ensure robust operation of PERCLK when reconfiguring the PERCLK clock source. To properly configure the PERCLK clock source, the following steps are required: 1.In the CCGR registers, gate the clocks to all PERCLK-dependent modules. 2.Select the desired input clock for the PERCLK root clock (to be either source from the peripherals main source clock or the lp_apm clock source). Refer to the CMCBR register, perclk_lp_apm_sel bit. 3.Configure the perclk_pred1, perclk_pred2, and perclk_podf dividers to the desired setting. Refer to the CBCDR register for details. 4.In the CCGR registers, enable the desired clocks for the PERCLK-dependent module clocks. If these steps aren't followed, GPT timer may stop and the kernel stops at "Calibrating delay loop". Signed-off-by: Terry Lv <r65388@freescale.com> Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
* imx: fix coding styleFabio Estevam2011-10-27-8/+2
| | | | | | | | | 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>
* MX5: Clean up the output of "clocks" commandMarek Vasut2011-09-30-7/+9
| | | | | | | | | | | | | | | | The new output looks like this: > clocks PLL1 800 MHz PLL2 665 MHz PLL3 216 MHz AHB 133000 kHz IPG 66500 kHz IPG PERCLK 665000 kHz Signed-off-by: Marek Vasut <marek.vasut@gmail.com> Acked-by: Stefano Babic <sbabic@denx.de> Acked-by: Jason Liu <jason.hui@linaro.org>
* MX5: Add AHB clock reporting and fix IPG clock reportingMarek Vasut2011-09-30-9/+27
| | | | | | | Signed-off-by: Marek Vasut <marek.vasut@gmail.com> Cc: Stefano Babic <sbabic@denx.de> Cc: Jason Liu <jason.hui@linaro.org> Acked-by: Jason Liu <jason.hui@linaro.org>
* MX5: Modify the PLL decoding algorithmMarek Vasut2011-09-30-10/+56
| | | | | | | | | | The PLL decoding algorithm didn't take into account many configuration bits. Adjust it according to Linux kernel. Also, add PLL4 for MX53. Signed-off-by: Marek Vasut <marek.vasut@gmail.com> Cc: Stefano Babic <sbabic@denx.de> Cc: Jason Hui <jason.hui@linaro.org> Tested-by: Jason Liu <Jason.hui@linaro.org>
* Makefile : fix generation of cpu related asm-offsets.hStefano Babic2011-09-07-3/+1
| | | | | | | | | | | commit 0edf8b5b2fa0d210ebc4d6da0fd1aceeb7e44e47 breaks building on a different directory with the O= parameter. The patch wil fix this issue, generating always asm-offsets.h before the other targets. Signed-off-by: Stefano Babic <sbabic@denx.de> CC: Matthias Weisser <weisserm@arcor.de> CC: Wolfgang Denk <wd@denx.de>
* MX: MX35 / MX5: uniform clock command with powerpcStefano Babic2011-09-04-2/+2
| | | | | | | | | | | There was already a command to show the processor clocks for PowerPC (clocks). For i.MX, the "clockinfo" command was introduce. The patch sets the same command name used on PowerPC. A nasty and not needed newline is also dropped in the help for the command. Signed-off-by: Stefano Babic <sbabic@denx.de>
* ARM: MX51: PLL errata workaroundDavid Jander2011-09-04-0/+38
| | | | | | | | | | | | | This is a port of the official PLL errata workaround from Freescale to mainline u-boot. The PLL's in the i.MX51 processor can go out of lock due to a metastable condition in an analog flip-flop when used at high frequencies. This workaround implements an undocumented feature in the PLL (dither mode), which causes the effect of this failure to be much lower (in terms of frequency deviation), avoiding system failure, or at least decreasing the likelihood of system failure. Signed-off-by: David Jander <david@protonic.nl>
* Timer: Remove reset_timer_masked()Graeme Russ2011-07-26-6/+4
| | | | | | | In some circumstances, reset_timer_masked() was called be timer_init() in order to perform architecture specific timer initialisation. In such cases, the required code in reset_timer_masked() has been moved into timer_init()
* Timer: Remove reset_timer() for non-Nios2 archesGraeme Russ2011-07-26-5/+0
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* Timer: Remove set_timer completelyGraeme Russ2011-07-26-5/+0
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* ARM: MX5: Fix broken leftover TO-2 errata workaroundDavid Jander2011-07-18-1/+5
| | | | | | | | This check was broken. r3 does not contain the silicon revision anymore, so we need to reload it. Also, this errata only applies to i.MX51. Signed-off-by: David Jander <david@protonic.nl> Acked-by: Stefano Babic <sbabic@denx.de>
* MX5: Update to autogenerated asm-offsets.hStefano Babic2011-07-14-0/+78
| | | | | | | On i.MX5, the asm-offsets.h file is not yet generated as it should be. Signed-off-by: Stefano Babic <sbabic@denx.de> CC: Matthias Weisser <weisserm@arcor.de>
* MX5: Introduce a function for setting the chip select sizeFabio Estevam2011-07-04-0/+30
| | | | Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
* MX53: Handle silicon revision 2.1 caseFabio Estevam2011-05-23-7/+3
| | | | Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
* MX5: factor out boot cause funciton to common codeJason Liu2011-04-27-0/+28
| | | | | | | factor out boot cause function to common code to avoid the duplicate code in each board support package Signed-off-by: Jason Liu <jason.hui@linaro.org>
* MX5: Reuse the gd->tbl value for timestamp and add gd->lastinc for lastinc bssStefano Babic2011-02-02-2/+4
| | | | | | | | | | The usage of bss values in drivers before initialisation of bss is forbidden. In that special case some data in .rel.dyn gets corrupted. This patch is the same as recently applied for arm926js architecture. Signed-off-by: Stefano Babic <sbabic@denx.de> CC: Heiko Schocher <hs@denx.de>
* MX5: Add initial support for MX53 processorLiu Hui-R643432011-02-02-47/+96
| | | | | | | | | | Add initial support for Freescale MX53 processor, - Add the iomux support and the pin definition, - Add the regs definition, clean up some unused def from mx51, - Add the low level init support, make use the freq input of setup_pll macro Signed-off-by: Jason Liu <r64343@freescale.com>
* Move DECLARE_GLOBAL_DATA_PTR to file scopeJohn Rigby2010-12-21-2/+4
| | | | | | | | | | | | | | | 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 <john.rigby@linaro.org> Fix some additional places. Signed-off-by: Wolfgang Denk <wd@denx.de> Acked-By: Albert ARIBAUD <albert.aribaud@free.fr>
* Merge branch 'master' of git://git.denx.de/u-boot-imxWolfgang Denk2010-12-09-0/+14
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| * imx: Get fec mac address from fuseLiu Hui-R643432010-11-21-0/+14
| | | | | | | | | | | | | | The patch is to support getting FEC MAC address from fuse bank. Signed-off-by: Jason Liu <r64343@freescale.com> Tested-by: Stefano Babic <sbabic@denx.de>
* | 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>
* MX51: remove warning in clock.cStefano Babic2010-10-28-1/+1
| | | | | | | | | | The patch removes the warning: clock.c:291: warning: initialization from incompatible pointer type after constification of args[] Signed-off-by: Stefano Babic <sbabic@denx.de>
* MX5:use common u-boot.lds of cpu layerJason Liu2010-10-28-73/+0
| | | | | | | | | | | | | | Remove u-boot.lds from mx5 and use the common u-boot.lds of cpu layer. This patch also fix the building errors: arch/arm/cpu/armv7/start.o: In function `_rel_dyn_start_ofs': arch/arm/cpu/armv7/start.S:283: undefined reference to `__rel_dyn_start' arch/arm/cpu/armv7/start.o: In function `_rel_dyn_end_ofs': arch/arm/cpu/armv7/start.S:283: undefined reference to `__rel_dyn_end' arch/arm/cpu/armv7/start.o: In function `_dynsym_start_ofs': arch/arm/cpu/armv7/start.S:283: undefined reference to `__dynsym_start' Signed-off-by: Jason Liu <r64343@freescale.com>
* MX5: Remove dead code with ENABLE_IMPRECISE_ABORTJason Liu2010-10-19-14/+0
| | | | | | | This code section is dead due to we never define ENABLE_IMPRECISE_ABORT for MX5 Signed-off-by: Jason Liu <r64343@freescale.com>
* MX5: rename mx51 to mx5Jason Liu2010-10-18-0/+1150
Rename mx51 to mx5 in order to support more mx51 like-style SOCs such as MX53 and the followings. Signed-off-by: Jason Liu <r64343@freescale.com>
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