summaryrefslogtreecommitdiff
path: root/arch/arm/cpu/armv7/omap3
AgeCommit message (Collapse)Author
2012-02-27armv7: omap3: leave outer cache enabledAneesh V
Mainline kernel for OMAP3 doesn't enable L2 cache It expects L2$ to be enabled by ROM-code/bootloader. Leaving L2$ enabled can be troublesome in cases where the L2 cache is not under CP15 control, such as in Cortex-A9. This problem is explained in detail in the commit dc7100f4080952798413fb63bb4134b22c57623a However, this problem doesn't apply to Cortex-A8 because L2$ in Cortex-A8 is under CP15 control and hence the generic armv7 maintenance opertions work for it. As such we can make an exception for OMAP3 and leave the L2$ enabled when we jump to kernel. This is done by removing the strongly-linked implementation of v7_outer_cache_disable() and allowing it to fall back to the weakly linked implementation that doesn't do anything. Signed-off-by: Aneesh V <aneesh@ti.com>
2012-02-12omap3: fix comment typosPeter Meerwald
Signed-off-by: Peter Meerwald <p.meerwald@bct-electronic.com>
2012-02-12OMAP3+: Clock: Adding ehci clock enablingGovindraj.R
Adding ehci clock enabling mechanism part of clock framework. When essential clocks are enabled during init phase usb host clocks can also be enabled from clock framework. Acked-by: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Govindraj.R <govindraj.raja@ti.com> Tested-by: Stefano Babic <sbabic@denx.de>
2012-02-12OMAP3: Correct get_sdr_cs_offset maskTom Rini
The function get_sdr_cs_offset reads the CS_CFG register in the SDRC to determine where CS1 is mapped to. make_cs1_contiguous() will set CS1 to follow after CS0. The CS_CFG register has values in bits 9:8 and 3:0 but we had erroneously been testing 5:4 and 3:0 resulting in incorrect offsets on platforms with less than 128MB as 3:0 describe 128MB hunks and 9:8 describe 32MB offsets after the 128MB hunk. Tested-by: Grant Erickson <marathon96@gmail.com> Signed-off-by: Tom Rini <trini@ti.com>
2012-02-12arm: omap3: Define save_boot_params in lowlevel_init.S for SPL onlyPali Rohár
Wrap the function save_boot_params with CONFIG_SPL_BUILD. This will allow non-SPL boards to define their own save_boot_params functions in U-Boot itself. Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
2012-01-16OMAP SPL: call timer_init in s_init to make udelay work earlierAndreas Müller
Signed-off-by: Andreas Müller <schnitzeltony@gmx.de>
2012-01-16omap3: make get_board_rev() function weakNikita Kiryanov
Current get_board_rev() function returns a hard coded value which is obviously incorrect for the majority of boards. Allow boards to provide a correct implementation by making this function weak. Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il> Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
2011-12-06OMAP3: Add SPL_BOARD_INIT hookTom Rini
Add an SPL_BOARD_INIT hook and for OMAP3 have it turn on i2c. OMAP4 doesn't need i2c enabled in SPL. Enable SPL_BOARD_INIT on devkit8000. Cc: Frederik Kriewitz <frederik@kriewitz.eu> Signed-off-by: Tom Rini <trini@ti.com>
2011-12-06OMAP3 SPL: Add identify_nand_chip functionTom Rini
A number of boards are populated with a PoP chip for both DDR and NAND memory. Other boards may simply use this as an easy way to identify board revs. So we provide a function that can be called early to reset the NAND chip and return the result of NAND_CMD_READID. All of this code is put into spl_id_nand.c and controlled via CONFIG_SPL_OMAP3_ID_NAND. Signed-off-by: Tom Rini <trini@ti.com>
2011-12-06OMAP3 SPL: Rework memory initalization and devkit8000 supportTom Rini
This changes to making the board be responsible for providing the memory initialization timings in SPL and converts the devkit8000 to this framework. In SPL we try and initialize both CS0 and CS1. Cc: Frederik Kriewitz <frederik@kriewitz.eu> Signed-off-by: Tom Rini <trini@ti.com>
2011-12-06OMAP3: Change mem_ok to clear again after reading backTom Rini
It's possible to need to call this function on the same banks multiple times so we want to be sure that 'pos A' is cleared out again at the end. Signed-off-by: Tom Rini <trini@ti.com>
2011-12-06OMAP3: Add a helper function to set timings in SDRCTom Rini
Since we go through the sequence to setup the SDRC timings more than once, break this logic out into its own function and have that function call mem_ok() to make sure the memory is usable. Signed-off-by: Tom Rini <trini@ti.com>
2011-12-06OMAP3: Update SDRC dram_init to always call make_cs1_contiguous()Tom Rini
We update the comment in make_cs1_contiguous() to be a little bit more clear (it's been copy/pasted from other silicons) and then explain in dram_init() why we need to always try this. Note that in the previous behavior we were always calling this on boards that never had cs1 populated anyhow so making sure we do this always is fine and will correct things like omap3evm detecting an invalid amount of memory (384MB). Signed-off-by: Tom Rini <trini@ti.com>
2011-12-06omap3: mem: Comment enable_gpmc_cs_config moreTom Rini
Expand the "enable the config" comment to explain what the bit shifts are and define out two of the magic numbers. Signed-off-by: Tom Rini <trini@ti.com>
2011-12-06AM35xx: add EMAC supportIlya Yanok
AM35xx has DaVinci-compatible EMAC. Signed-off-by: Ilya Yanok <yanok@emcraft.com>
2011-12-06start.S: remove omap3 specific code from start.SAneesh V
Cc: Tom Rini <trini@ti.com> Cc: Albert Aribaud <albert.u.boot@aribaud.net> Signed-off-by: Aneesh V <aneesh@ti.com> Acked-by: Tom Rini <trini@ti.com>
2011-11-29OMAP3: Use sdelay from arch/arm/cpu/armv7/syslib.c instead of cloning that.Alexander Holler
There is no need to have such a function twice. Signed-off-by: Alexander Holler <holler@ahsoftware.de> Acked-by: Dirk Behme <dirk.behme@googlemail.com> Signed-off-by: Anatolij Gustschin <agust@denx.de>
2011-10-27OMAP3 SPL: Provide weak omap_rev_stringTom Rini
We add an weak version of omap_rev_string in omap-common/spl.c and while at it drop the omap3 version. Move the prototype over to <asm/omap_common.h> with the other SPL functions. Signed-off-by: Tom Rini <trini@ti.com> Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
2011-09-30omap3: Fix compile warningSanjeev Premi
Building without option CONFIG_DISPLAY_CPUINFO leads to this warning: sys_info.c:50:14: warning: 'rev_s_37xx' defined but not used Signed-off-by: Sanjeev Premi <premi@ti.com> Cc: Sandeep Paulraj <s-paulraj@ti.com> Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
2011-09-30omap3: implement boot parameter savingSimon Schwarz
Implements the saving of boot params passed by OMAP3 ROM code. Signed-off-by: Simon Schwarz <simonschwarzcor@gmail.com> Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
2011-09-30omap3: new SPL structure supportSimon Schwarz
Support for the new spl structure. Using the interface defined by Aneesh V for OMAP4 Signed-off-by: Simon Schwarz <simonschwarzcor@gmail.com> Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
2011-09-30omap-common: add nand spl supportSimon Schwarz
Add NAND support for the new SPL structure. Signed-off-by: Simon Schwarz <simonschwarzcor@gmail.com> Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
2011-09-30omap3: Configure RAM bank 0 if in SPLSimon Schwarz
OMAP3 relied on the memory config done by X-loader or Configuration Header. This has to be reworked for the implementation of a SPL. This patch configures RAM bank 0 if CONFIG_SPL_BUILD is set. Settings for Micron-RAM used by devkit8000 are added to mem.h Signed-off-by: Simon Schwarz <simonschwarzcor@gmail.com> Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
2011-09-12ARMV7: OMAP3: Add 37xx ESx revision numbers.Howard D. Gray
OMAP3: Add 37xx ESx revision numbers. Signed-off-by: Michael Jones <michael.jones@matrix-vision.de> Signed-off-by: Howard D. Gray <howard.gray@matrix-vision.de> Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
2011-09-04dm3730: enable dpll5Eric Benard
which is used to provide 120MHz to USB EHCI This allows EHCI to work on BeagleBoard XM Signed-off-by: Eric Bénard <eric@eukrea.com> Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
2011-09-04omap3:clock: check cpu_family before enabling clks for IVA & CAMVaibhav Hiremath
In case of AM3517 and AM3505 (which is OMAP3 varients), IVA2 and ISP-CAMERA modules have been removed. So add check for cpu_family before enabling clocks for these modules, else this impacts subsequent power consumption and system suspend/resume functionality. Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com> Signed-off-by: Ranjith Lohithakshan <ranjithl@ti.com> Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
2011-09-04omap3:clock: configure GFX clock to 200MHz for AM/DM37xVaibhav Hiremath
AM/DM37x is another OMAP3 variant, where the GFX clock has been boosted to 192MHz/200MHz. So fix the GFX_DIV value for this change. HW Errata: Due to dependency of TV out clock of 54MHz, it is not possible to configure GFX to 192MHz. So as per HW errats, the recommended GFX clock is 200MHz (=CORE_CLK/2). Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com> Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
2011-09-04omap: enable caches at system start-upAneesh V
Signed-off-by: Aneesh V <aneesh@ti.com>
2011-09-04omap: fix gpio related build breaksAneesh V
Signed-off-by: Aneesh V <aneesh@ti.com> Acked-by: Dirk Behme <dirk.behme@googlemail.com>
2011-08-03omap: reuse omap3 gpio support in omap4Aneesh V
Signed-off-by: Aneesh V <aneesh@ti.com> Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
2011-08-03omap3: Include array definition only when it is usedSanjeev Premi
The array of strings corresponding to cpu revision is used only when CONFIG_DISPLAY_CPUINFO is selected - in the function print_cpuinfo(). Enclose definition of this array in #ifdef...#endif for the same. Signed-off-by: Sanjeev Premi <premi@ti.com> Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
2011-07-04armv7: adapt omap3 to the new cache maintenance frameworkAneesh V
adapt omap3 to the new layered cache maintenance framework Signed-off-by: Aneesh V <aneesh@ti.com>
2011-04-27ARMV7: OMAP3: Cleanup extern variables in mem.cLuca Ceresoli
Removed boot_flash_* extern variables. boot_flash_type was totally unused. The other ones were actually constants, so they have been replaced with #defines in the board config files. Signed-off-by: Luca Ceresoli <luca.ceresoli@comelit.it> Cc: Wolfgang Denk <wd@denx.de> Cc: Albert Aribaud <albert.aribaud@free.fr> Cc: Sandeep Paulraj <s-paulraj@ti.com> Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
2011-04-27OMAP3: Add support for DPLL5 (usbhost)Alexander Holler
Signed-off-by: Alexander Holler <holler@ahsoftware.de> Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
2010-12-11omap3: emif|sdrc: use a single global data defineNishanth Menon
DECLARE_GLOBAL_DATA_PTR declarations in functions are inherently troublesome with various compilers (e.g. gcc 4.5) Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
2010-11-29AM3517:EMIF4: fix SDRAM size to 256MbVaibhav Hiremath
With addition of "dram_init_banksize()" function from Heiko,Schocher (commit ID: 561142af20f1fd7b425d9425730014e656defb91), the DRAM size is getting configured wrongly to 512Mb (CS0 & CS1). So fix it to 256Mb. Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com> Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
2010-11-17Switch from archive libraries to partial linkingSebastien Carlier
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>
2010-11-04armv7, beagle: Second SDRAM bank don;t workHeiko Schocher
since commit 3667cbeed5e3c4067e624e52a916b1ebb02c8f05 on beagle board the second sdram bank didn;t longer work. Since this patch sdram settings just get copied from bank a, but CMD_NOP, CMD_PRECHARGE, CMD_AUTOREFRESH are not executed and after that mr register is also not updated. This patch adds this for the bank b. Signed-off-by: Heiko Schocher <hs@denx.de> cc: Steve Sakoman <steve@sakoman.com> cc: Sandeep Paulraj <s-paulraj@ti.com> cc: Wolfgang Denk <wd@denx.de> Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
2010-10-29Drop support for CONFIG_SYS_ARM_WITHOUT_RELOCWolfgang Denk
When this define was introduced, the idea was to provide a soft migration path for ARM boards to get adapted to the new relocation support. However, other recent changes led to a different implementation (ELF relocation), where this no longer works. By now CONFIG_SYS_ARM_WITHOUT_RELOC does not only not help any more, but it actually hurts because it obfuscates the actual code by sprinkling it with lots of dead and non-working debris. So let's make a clean cut and drop CONFIG_SYS_ARM_WITHOUT_RELOC. Signed-off-by: Wolfgang Denk <wd@denx.de> Tested-by: Heiko Schocher <hs@denx.de> Tested-by: Reinhard Meyer <u-boot@emk-elektronik.de>
2010-10-18Rename TEXT_BASE into CONFIG_SYS_TEXT_BASEWolfgang Denk
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>
2010-10-17ARMV7: OMAP3: Fix bug in get_sdr_cs_offset()Steve Sakoman
This patch fixes a typo in the routine to calculate the cs offset based upon the contents of the SDRC cs_cfg register. This function mistakenly shifts the CS1STARTLOW field 17 bits right instead of 17 bits left. This hasn't been an issue to date because all OMAP3 boards currently are configured to have zeros in this field. Reported-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Steve Sakoman <steve.sakoman@linaro.org>
2010-09-19ARM: implement relocation for ARM V7 (OMAP)Heiko Schocher
Change the implementation for ARM V7 to relocate the code to an arbitrary address in RAM. Adapt the Beagle board (Cortex A8) to test the changes. Portions of this work were supported by funding from the CE Linux Forum. Signed-off-by: Heiko Schocher <hs@denx.de>
2010-09-19ARM V7 (OMAP): add data cache support, test on Beagle boardHeiko Schocher
Add data cache support for ARM V7 systems. Used cache flush functions from linux:arch/arm/mm/cache-v7.S developed from Catalin Marinas. Enable "cache" command on Beagle board and test performance. Test 1: Loading 127 MB of data from NAND flash into RAM: Instr. Cache off on on Data Cache off off on -------------------------------------------------- Beagle (Cortex A8) 116s 106s 30.3s = x 3.8 Test 2: uncompressing a gzipped image from RAM to RAM (size compressed: 6.5 MiB, uncompressed: 35 MiB): Instr. Cache off on on Data Cache off off on -------------------------------------------------- Beagle (Cortex A8) 1.84s 1.64s 0.12s = x 15.3 Portions of this work were supported by funding from the CE Linux Forum. Signed-off-by: Heiko Schocher <hs@denx.de> Reviewed-by: Ben Gardiner<bengardiner@nanometrics.ca>
2010-09-10Prepare v2010.09-rc1Wolfgang Denk
Coding style cleanup. Signed-off-by: Wolfgang Denk <wd@denx.de>
2010-09-08ARMV7: OMAP3: Remove erroneous hard coded sdram setup for 128MB/bankSteve Sakoman
Upcoming Beagle and Overo revisions use POP memory with 256MB or 512MB per bank. This patches uses the SDRC settings from x-load or the config header to set up timing properly. Signed-off-by: Steve Sakoman <steve@sakoman.com> Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
2010-09-08ARMV7: OMAP3: Apply Cortex-A8 errata workarounds only on affected revisionsMans Rullgard
The workarounds for errata 621766 and 725233 should only be applied on affected Cortex-A8 revisions. Recent chips use r3px cores where these have been fixed. Signed-off-by: Mans Rullgard <mans@mansr.com> Signed-off-by: Steve Sakoman <steve@sakoman.com> Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
2010-09-08ARMV7: OMAP3: Convert setup_auxcr() to pure asmMans Rullgard
This function consists entirely of inline asm statements, so writing it directly in a .S file is simpler. Additionally, the inline asm is not safe as is, since registers are not guaranteed to be preserved between asm() statements. Signed-off-by: Mans Rullgard <mans@mansr.com> Signed-off-by: Steve Sakoman <steve@sakoman.com> Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
2010-09-08ARMV7: OMAP3: Fix and clean up L2 cache enable/disable functionsMans Rullgard
On OMAP34xx ES1.0, the L2 enable bit can only be set in secure mode, so an SMC call to the ROM monitor is required. On later versions, and on newer devices, this bit is banked and we can set it directly. The code checked only the ES revision of the chip, and hence incorrectly used the ROM call on ES1.0 versions of other devices. This patch adds a check for chip family as well as revision, and also removes some code duplication between the enable and disable functions. Signed-off-by: Mans Rullgard <mans@mansr.com> Signed-off-by: Steve Sakoman <steve@sakoman.com> Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
2010-09-08ARMV7: OMAP3: Add clock setup for OMAP36XX/37XXSteve Sakoman
This patch configures clocks properly when a 36XX/37XX processor is detected. Signed-off-by: Steve Sakoman <steve@sakoman.com> Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
2010-09-08ARMV7: OMAP3: Update CPU type detection for AM35XX/OMAP36XX/37XXSteve Sakoman
TI has added new processors to the OMAP3 family. This patch enhances the code in sysinfo.c to detect which family member is present. Signed-off-by: Steve Sakoman <steve@sakoman.com> Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
generated by cgit (git 2.34.1) at 2024-12-29 01:11:25 +0000