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* imx: fix coding styleFabio Estevam2011-10-27-9/+14
| | | | | | | | | 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>
* Timer: Remove reset_timer_masked()Graeme Russ2011-07-26-7/+0
| | | | | | | 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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* MX31: Cleanup clock functionStefano Babic2011-07-18-1/+20
| | | | | | | The patch provide the same API used with other i.MX processors and get rid of mx31_ functions. Signed-off-by: Stefano Babic <sbabic@denx.de>
* MX31: Make get_reset_cause() static and drop unreachable codeStefano Babic2011-05-23-5/+1
| | | | | | | | get_reset_cause() should not be exported. Drop code in the function after return statement that can generate warnings due to unreachable code. Signed-off-by: Stefano Babic <sbabic@denx.de> Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
* MX31: change return value of get_cpu_revStefano Babic2011-05-11-13/+18
| | | | | | | | | | Drop warnings in get_cpu_rev and changes the return value (a u32 instead of char * is returned) of the function to be coherent with other processors. Signed-off-by: Stefano Babic <sbabic@denx.de> CC: Detlev Zundel <dzu@denx.de> CC: Fabio Estevam <fabio.estevam@freescale.com>
* MX31: Introduce get_reset_cause()Fabio Estevam2011-04-27-1/+28
| | | | | Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Acked-by: Detlev Zundel <dzu@denx.de>
* ARM: mx31: Print the silicon versionFabio Estevam2011-04-27-2/+28
| | | | | | | | | | | Use the same method of the Linux kernel to print the MX31 silicon version on boot. Tested on a MX31PDK with a 2.0 silicon, where it shows: CPU: Freescale i.MX31 rev 2.0 at 531 MHz Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
* IMX: MX31: Cleanup include files and drop nasty #ifdef in driversStefano Babic2011-04-27-4/+4
| | | | | | | | | | As exception among the i.MX processors, the i.MX31 has headers without general names (mx31-regs.h, mx31.h instead of imx-regs.h and clock.h). This requires several nasty #ifdef in the drivers to include the correct header. The patch cleans up the driver and renames the header files as for the other i.MX processors. Signed-off-by: Stefano Babic <sbabic@denx.de>
* MX31: add support for MX31 watchdogStefano Babic2011-04-27-1/+37
| | | | | | | | | | | | | | | | | | The patch add CONFIG_HW_WATCHDOG to be used with the internal watchdog timer of the MX31 processor. Two function are exported for the board maintainers: mxc_hw_watchdog_enable mxc_hw_watchdog_reset The board maintainer can decide to use mxc_hw_watchdog_reset as hw_watchdog_reset, or to implement his own function to reset the watchdog. The watchdog timer can be configured with CONFIG_SYS_WD_TIMER_SECS (value in seconds). The MX31 allows values between 0.5 (CONFIG_SYS_WD_TIMER_SECS = 0) and 128 seconds. Signed-off-by: Stefano Babic <sbabic@denx.de>
* arm1136: timer: Replace bss variable by gdHeiko Schocher2011-02-02-10/+9
| | | | | | | | | | | | | | | | | Reuse the gd->tbl value for timestamp and add gd->lastinc for lastinc bss values in the arm1136 timer driver for mx31 and omap24xx 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 similiar to the patch Dirk Behme posted for the armv7/omap-common/timer.c Tested on the mx31 based qong board Signed-off-by: Heiko Schocher <hs@denx.de> cc: Albert ARIBAUD <albert.aribaud@free.fr> Acked-by: Albert ARIBAUD <albert.aribaud@free.fr>
* 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>
* MX31: Removed warnings for iomux functionStefano Babic2010-10-20-4/+3
| | | | | | Removed warnings generated in the mx31_set_pad() function. Signed-off-by: Stefano Babic <sbabic@denx.de>
* MX31: add support for setting pin padsStefano Babic2010-10-13-0/+17
| | | | | | | The patch adds a utility function and defines to set the pad as it is done in linux. Signed-off-by: Stefano Babic <sbabic@denx.de>
* ARM: */timer.c: fix spelling and vertical alignmentWolfgang Denk2010-05-21-1/+1
| | | | Signed-off-by: Wolfgang Denk <wd@denx.de>
* arm: Move cpu/$CPU to arch/arm/cpu/$CPUPeter Tyser2010-04-13-0/+373
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>