- 09 11月, 2012 1 次提交
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由 Paul Walmsley 提交于
Get rid of the mach-omap2/common.c globals by moving the global initialization for IP block addresses that must occur early into mach-omap2/io.c. In the process, remove the *_map_common_io*() and SoC-specific *set_globals* functions. Signed-off-by: NPaul Walmsley <paul@pwsan.com> Tested-by: NVaibhav Hiremath <hvaibhav@ti.com>
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- 25 10月, 2012 1 次提交
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由 Tony Lindgren 提交于
For omap1, we'll keep mach/serial.h around for 8250.c hardware workarounds. For omap2+, we no longer need mach/serial.h and can make it local to mach-omap2. Signed-off-by: NTony Lindgren <tony@atomide.com>
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- 19 10月, 2012 3 次提交
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由 Tony Lindgren 提交于
We must move this for ARM common zImage support. Note that neither drivers/media/rc/ir-rx51.c or drivers/media/platform/omap3isp/ispvideo.c need to include omap-pm.h, so this patch removes the include for those files. Acked-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: Mauro Carvalho Chehab <mchehab@infradead.org> Cc: Timo Kokkonen <timo.t.kokkonen@iki.fi> Cc: linux-media@vger.kernel.org Signed-off-by: NTony Lindgren <tony@atomide.com>
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由 Tony Lindgren 提交于
This is private to cpu.h and no other places should need to include it and we can drop the include in mach-omap2/io.c. Signed-off-by: NTony Lindgren <tony@atomide.com>
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由 Tony Lindgren 提交于
Let's make omap_hwmod local to mach-omap2 for ARM common zImage support. Signed-off-by: NTony Lindgren <tony@atomide.com>
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- 18 10月, 2012 2 次提交
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由 Tony Lindgren 提交于
We can move this from plat to be local to plat-omap for common ARM zImage support. Signed-off-by: NTony Lindgren <tony@atomide.com>
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由 Paul Walmsley 提交于
Remove arch/arm/plat-omap/include/plat/sdrc.h by folding its contents into arch/arm/mach-omap2/sdrc.h. The objective is to assist Tony in cleaning out arch/arm/plat-omap/, as his upstreams request. Signed-off-by: NPaul Walmsley <paul@pwsan.com> Cc: Tony Lindgren <tony@atomide.com> [tony@atomide.com: updated to remove rotate macros] Signed-off-by: NTony Lindgren <tony@atomide.com>
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- 16 10月, 2012 1 次提交
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由 Lokesh Vutla 提交于
Move plat/dma.h to plat-omap/dma-omap.h as part of single zImage work Signed-off-by: NLokesh Vutla <lokeshvutla@ti.com> Signed-off-by: NTony Lindgren <tony@atomide.com>
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- 13 9月, 2012 2 次提交
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由 Tony Lindgren 提交于
As the plat and mach includes need to disappear for single zImage work, we need to remove plat/hardware.h. Do this by splitting plat/hardware.h into omap1 and omap2+ specific files. The old plat/hardware.h already has omap1 only defines, so it gets moved to mach/hardware.h for omap1. For omap2+, we use the local soc.h that for now just includes the related SoC headers to keep this patch more readable. Note that the local soc.h still includes plat/cpu.h that can be dealt with in later patches. Let's also include plat/serial.h from common.h for all the board-*.c files. This allows making the include files local later on without patching these files again. Note that only minimal changes are done in this patch for the drivers/watchdog/omap_wdt.c driver to keep things compiling. Further patches are needed to eventually remove cpu_is_omap usage in the drivers. Also only minimal changes are done to sound/soc/omap/* to remove the unneeded includes and to define OMAP44XX_MCPDM_L3_BASE locally so there's no need to include omap44xx.h. While at it, also sort some of the includes in the standard way. Cc: linux-watchdog@vger.kernel.org Cc: alsa-devel@alsa-project.org Cc: Peter Ujfalusi <peter.ujfalusi@ti.com> Cc: Jarkko Nikula <jarkko.nikula@bitmer.com> Cc: Liam Girdwood <lrg@ti.com> Acked-by: NWim Van Sebroeck <wim@iguana.be> Acked-by: NMark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: NTony Lindgren <tony@atomide.com>
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由 Tony Lindgren 提交于
As the interrupts should only be defined in the platform_data, and eventually coming from device tree, there's no need to define them in header files. Let's remove the hardcoded references to irqs.h and fix up the includes so we don't rely on headers included in irqs.h. Note that we're defining OMAP_INTC_START as 0 to the interrupts. This will be needed when we enable SPARSE_IRQ. For some drivers we need to add #include <plat/cpu.h> for now until these drivers are fixed to remove cpu_is_omapxxxx() usage. While at it, sort som of the includes the standard way, and add the trailing commas where they are missing in the related data structures. Note that for drivers/staging/tidspbridge we just define things locally. Cc: Paul Walmsley <paul@pwsan.com> Signed-off-by: NTony Lindgren <tony@atomide.com>
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- 12 9月, 2012 1 次提交
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由 Vaibhav Hiremath 提交于
This patch adds HWMOD data for all the peripherals of AM335X device and also hooks up to the existing OMAP framework. hwmod data has been already been cleaned up for the recent changes in clocktree, where all leaf nodes have been removed, since with modulemode based control, both clock and hwmod interface does same thing. This reduces the code size to large extent and also avoids duplication of same control. So instead of specifying module's leaf node as a main_clk, now we are relying on parent clock of module's functional clock. Signed-off-by: NVaibhav Hiremath <hvaibhav@ti.com> Signed-off-by: NAfzal Mohammed <afzal@ti.com> Signed-off-by: NVaibhav Bedia <vaibhav.bedia@ti.com> Cc: Paul Walmsley <paul@pwsan.com> Cc: Benoit Cousson <b-cousson@ti.com> Cc: Tony Lindgren <tony@atomide.com> Cc: Kevin Hilman <khilman@ti.com> Cc: Rajendra Nayak <rnayak@ti.com> [paul@pwsan.com: removed period in hwmod device names; changed mmc2 main_clk to mmc_clk at Vaibhav's request; added trailing commas to structure records at Tony's request to deal with some rmk parsing issues; added OMAP_INTC_START to facilitate sparse-IRQ conversion] Signed-off-by: NPaul Walmsley <paul@pwsan.com>
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- 09 7月, 2012 1 次提交
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由 R Sricharan 提交于
OMAP5430 is Texas Instrument's SOC based on ARM Cortex-A15 SMP architecture. It's a dual core SOC with GIC used for interrupt handling and with an integrated L2 cache controller. OMAP5432 is another variant of OMAP5430, with a memory controller supporting DDR3 and SATA. Patch includes: - The machine specific headers and sources updates. - Platform header updates. - Minimum initialisation support for serial. - IO table init Signed-off-by: NR Sricharan <r.sricharan@ti.com> Signed-off-by: NSantosh Shilimkar <santosh.shilimkar@ti.com>
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- 30 6月, 2012 1 次提交
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由 Vaibhav Hiremath 提交于
AM33XX clock implementation is different than any existing OMAP family of devices. Although DPLL module is similar to OMAP4 device, but the usage is very much different than OMAP4. AM33XX has different peripheral set and each module gets integrated to the clock framework differently than OMAP family of devices. This patch adds full Clock tree data for AM33XX family of devices and also integrates it into existing OMAP framework. Signed-off-by: NVaibhav Hiremath <hvaibhav@ti.com> Signed-off-by: NAfzal Mohammed <afzal@ti.com> Signed-off-by: NVaibhav Bedia <vaibhav.bedia@ti.com> Cc: Kevin Hilman <khilman@ti.com> Cc: Rajendra Nayak <rnayak@ti.com> CC: Tony Lindgren <tony@atomide.com> Cc: Paul Walmsley <paul@pwsan.com> Cc: Benoit Cousson <b-cousson@ti.com> [paul@pwsan.com: updated to apply; changed 'soc_is_am33xx' to 'cpu_is_am33xx' to match usage in Tony's current am33xx branch] Signed-off-by: NPaul Walmsley <paul@pwsan.com>
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- 19 6月, 2012 2 次提交
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由 Vaibhav Hiremath 提交于
AM33XX PRCM module consists of various clockdomains, in all total we have 18 clockdomains available, with following controlling options, - SW Sleep: sw forced sleep transition - SW Wakeup: sw forced wakeup transition This patch adds all available clockdomain data, respective clockdomain operations for AM33XX family of device, and also integrates it into existing OMAP framework. Signed-off-by: NVaibhav Hiremath <hvaibhav@ti.com> Signed-off-by: NAfzal Mohammed <afzal@ti.com> Signed-off-by: NVaibhav Bedia <vaibhav.bedia@ti.com> Cc: Kevin Hilman <khilman@ti.com> Cc: Rajendra Nayak <rnayak@ti.com> CC: Tony Lindgren <tony@atomide.com> Cc: Paul Walmsley <paul@pwsan.com> Cc: Benoit Cousson <b-cousson@ti.com> [paul@pwsan.com: removed CLKDM_NO_AUTODEPS from clockdomain flags, removed unnecessary .clktrctrl_offs field; updated for 3.5] Signed-off-by: NPaul Walmsley <paul@pwsan.com>
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由 Vaibhav Hiremath 提交于
Add offset & mask fields to struct powerdomain In case of AM33xx family of devices, there is no consistency between PWRSTCTRL & PWRSTST register offsers in PRM space, for example - PRM_XXX PWRSTCTRL PWRSTST ======================================= PRM_PER_MOD: 0x0C, 0x08 PRM_WKUP_MOD: 0x04, 0x08 PRM_MPU_MOD: 0x00, 0x04 PRM_DEVICE_MOD: NA, NA And also, there is no consistency between bit-offsets inside PWRSTCTRL & PWRSTST register, for example - PRM_XXX LOGICRET MEMON MEMRET ======================================= GFX_PWRCTRL: 2, 17, 6 PER_PWRCTRL: 3, 25, 29 MPU_PWRCTRL: 2, 18, 22 WKUP_PWRCTRL: 3, NA, NA This means, we need to maintain and pass on all this information in powerdomain handle; so adding fields for, - PWRSTCTRL/ST register offset - Logic retention state mask - mem_on/ret/pwrst/retst mask Currently, this fields is only applicable and used for AM33XX devices. Signed-off-by: NVaibhav Hiremath <hvaibhav@ti.com> Cc: Benoit Cousson <b-cousson@ti.com> Cc: Tony Lindgren <tony@atomide.com> Cc: Kevin Hilman <khilman@ti.com> Cc: Paul Walmsley <paul@pwsan.com> Cc: Rajendra Nayak <rnayak@ti.com> [paul@pwsan.com: this patch is a combination of "Add offset & mask fields to struct powerdomain" and the powerdomain portions of "ARM: OMAP3+: am33xx: Add powerdomain & PRM support"; updated for 3.5] Signed-off-by: NPaul Walmsley <paul@pwsan.com>
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- 18 6月, 2012 1 次提交
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由 Vaibhav Hiremath 提交于
Currently dummy voltage domain data is being created in order to succeed boot process, nothing has been done w.r.t actual hardware (voltage control). Also, hook up the AM33XX voltage domain to OMAP framework. Signed-off-by: NVaibhav Hiremath <hvaibhav@ti.com> Signed-off-by: NAfzal Mohammed <afzal@ti.com> Cc: Benoit Cousson <b-cousson@ti.com> Cc: Tony Lindgren <tony@atomide.com> Cc: Kevin Hilman <khilman@ti.com> Cc: Paul Walmsley <paul@pwsan.com> Cc: Rajendra Nayak <rnayak@ti.com> Acked-by: NKevin Hilman <khilman@ti.com> [paul@pwsan.com: updated for 3.5] Signed-off-by: NPaul Walmsley <paul@pwsan.com>
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- 05 6月, 2012 1 次提交
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由 Afzal Mohammed 提交于
This patch adds minimal support for AM335X machine init. During last merge window, two separate patches supporting am33xx machine init had been submitted, 1. Link to earlier Baseport patch submission (Legacy): http://www.mail-archive.com/linux-omap@vger.kernel.org/msg59325.html 2. Link to earlier DT based machine init support patch submission: http://www.mail-archive.com/linux-omap@vger.kernel.org/msg61398.html And both had got accepted at that time, but got missed during merge window. But now, since we have taken decision to make am33xx as a separate class and not to follow omap3 family, these patches needs to changes accordingly (only changes), - Combine both the patches, since early init and timer init used in board-generic.c file requires them. - Remove dependency on AM3517EVM, and only use DT approach for machine init. - Change the config option (as changed recently) CONFIG_SOC_OMAPAM33XX --> CONFIG_SOC_AM33XX Signed-off-by: NVaibhav Hiremath <hvaibhav@ti.com> Signed-off-by: NVaibhav Hiremath <hvaibhav@ti.com> Cc: Benoit Cousson <b-cousson@ti.com> Cc: Paul Walmsley <paul@pwsan.com> Signed-off-by: NTony Lindgren <tony@atomide.com>
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- 11 5月, 2012 2 次提交
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由 Kevin Hilman 提交于
No need to have an OMAP prefix on these SoCs that are in the family but arent' really called OMAP. Simple rename: CONFIG_SOC_OMAPAM33XX --> CONFIG_SOC_AM33XX No functional change. Signed-off-by: NKevin Hilman <khilman@ti.com> Acked-by: NVaibhav Hiremath <hvaibhav@ti.com> [tony@atomide.com: updated for the driver config change also] Signed-off-by: NTony Lindgren <tony@atomide.com>
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由 Kevin Hilman 提交于
No need to have an OMAP prefix on these SoCs that are in the family but arent' really called OMAP. Simple rename: CONFIG_SOC_OMAPTI81XX --> CONFIG_SOC_TI81XX No functional change. Signed-off-by: NKevin Hilman <khilman@ti.com> Acked-by: NVaibhav Hiremath <hvaibhav@ti.com> Signed-off-by: NTony Lindgren <tony@atomide.com>
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- 09 5月, 2012 1 次提交
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由 Kevin Hilman 提交于
Without runtime PM enabled, hwmod needs to leave all IP blocks in an enabled state by default so any driver access to the HW will succeed. This is accomplished by seting the postsetup_state to enabled for all hwmods during init when runtime PM is disabled. Currently, we have a special case for WDT in that its postsetup_state is always set to disabled. This is done so that the WDT is disabled and the timer is disarmed at boot in case there is no WDT driver. This also means that when runtime PM is disabled, if a WDT driver *is* built in the kernel, the kernel will crash on the first access to the WDT hardware. We can't simply leave the WDT module enabled, because the timer is armed by default after reset. That means that if there is no WDT driver initialzed or loaded before the timer expires, the kernel will reboot. To fix this, a custom reset method is added to the watchdog class of omap_hwmod. This method will *always* disarm the timer after hwmod reset. The WDT timer then will only be rearmed when/if the driver is loaded for the WDT. With the timer disarmed by default, we no longer need a special-case for the postsetup_state of WDT during init, so it is removed. Any platforms wishing to ensure the watchdog remains armed across the entire boot boot can simply disable the reset-on-init feature of the watchdog hwmod using omap_hwmod_no_setup_reset(). Tested on 3530/Overo, 4430/Panda. NOTE: on 4430, the hwmod OCP reset does not seem to rearm the timer as documented in the TRM (and what happens on OMAP3.) I noticed this because testing the HWMOD_INIT_NO_RESET feature with no driver loaded, I expected a reboot part way through the boot, but did not see a reboot. Adding some debug to read the counter, I verified that right after OCP softreset, the counter is not firing. After writing the magic start sequence, the timer starts counting. This means that the timer disarm sequence added here does not seem to be needed for 4430, but is technically the correct way to ensure the timer is disarmed, so it is left in for OMAP4. Special thanks to Paul Walmsley for helping brainstorm ideas to fix this problem. Cc: Paul Walmsley <paul@pwsan.com> Signed-off-by: NKevin Hilman <khilman@ti.com> Cc: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: NSantosh Shilimkar <santosh.shilimkar@ti.com> [paul@pwsan.com: updated the omap2_wd_timer_reset() function in the wake of commit 3c55c1ba ("ARM: OMAP2+: hwmod: Revert "ARM: OMAP2+: hwmod: Make omap_hwmod_softreset wait for reset status""); added kerneldoc; rolled in warning fix from Kevin] Signed-off-by: NPaul Walmsley <paul@pwsan.com>
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- 08 5月, 2012 2 次提交
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由 Shawn Guo 提交于
Signed-off-by: NShawn Guo <shawn.guo@linaro.org> Acked-by: NTony Lindgren <tony@atomide.com>
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由 Santosh Shilimkar 提交于
EMIF, GMPC and DMM driver can ioremap() the address space as part of driver intialisation and there is no need to have static IO mapping for them. Hence remove the un-used static IP space and let the respective drivers manage it as part if driver init. Signed-off-by: NSantosh Shilimkar <santosh.shilimkar@ti.com>
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- 13 4月, 2012 1 次提交
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由 Paul Walmsley 提交于
Several C files in arch/arm/mach-omap* and arch/arm/plat-omap declare functions that are used by other files, but don't include the header file where the prototype is declared. This results in the following warnings from sparse: arch/arm/mach-omap2/irq.c:114:5: warning: symbol 'omap_irq_pending' was not declared. Should it be static? arch/arm/mach-omap2/irq.c:186:13: warning: symbol 'omap2_init_irq' was not declared. Should it be static? arch/arm/mach-omap2/irq.c:191:13: warning: symbol 'omap3_init_irq' was not declared. Should it be static? arch/arm/mach-omap2/irq.c:196:13: warning: symbol 'ti81xx_init_irq' was not declared. Should it be static? arch/arm/mach-omap2/irq.c:233:39: warning: symbol 'omap2_intc_handle_irq' was not declared. Should it be static? arch/arm/mach-omap2/irq.c:242:6: warning: symbol 'omap_intc_save_context' was not declared. Should it be static? arch/arm/mach-omap2/irq.c:265:6: warning: symbol 'omap_intc_restore_context' was not declared. Should it be static? arch/arm/mach-omap2/irq.c:291:6: warning: symbol 'omap3_intc_suspend' was not declared. Should it be static? arch/arm/mach-omap2/irq.c:297:6: warning: symbol 'omap3_intc_prepare_idle' was not declared. Should it be static? arch/arm/mach-omap2/irq.c:306:6: warning: symbol 'omap3_intc_resume_idle' was not declared. Should it be static? arch/arm/mach-omap2/irq.c:312:39: warning: symbol 'omap3_intc_handle_irq' was not declared. Should it be static? arch/arm/mach-omap2/omap-secure.c:59:12: warning: symbol 'omap_secure_ram_reserve_memblock' was not declared. Should it be static? arch/arm/mach-omap2/board-zoom-display.c:133:13: warning: symbol 'zoom_display_init' was not declared. Should it be static? arch/arm/plat-omap/common.c:73:13: warning: symbol 'omap_init_consistent_dma_size' was not declared. Should it be static? arch/arm/mach-omap1/irq.c:61:5: warning: symbol 'omap_irq_flags' was not declared. Should it be static? arch/arm/mach-omap1/irq.c:179:13: warning: symbol 'omap1_init_irq' was not declared. Should it be static? arch/arm/mach-omap1/reset.c:11:6: warning: symbol 'omap1_restart' was not declared. Should it be static? Fix by including the appropriate header files. Signed-off-by: NPaul Walmsley <paul@pwsan.com> Cc: Santosh Shilimkar <santosh.shilimkar@ti.com> Cc: Senthilvadivu Guruswamy <svadivu@ti.com> Acked-by: NSantosh Shilimkar <santosh.shilimkar@ti.com>
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- 07 3月, 2012 1 次提交
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由 Tony Lindgren 提交于
Otherwise we get the following warning: arch/arm/mach-omap2/io.c:53:24: warning: 'omap24xx_io_desc' defined but not used [-Wunused-variable] Reported-by: NRussell King <linux@arm.linux.org.uk> Signed-off-by: NTony Lindgren <tony@atomide.com>
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- 06 3月, 2012 1 次提交
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由 Danny Kukawka 提交于
arch/arm/mach-omap2/: included some headers tiwce: - arch/arm/mach-omap2/board-ldp.c: 'linux/gpio.h' - arch/arm/mach-omap2/io.c: 'common.h' - arch/arm/mach-omap2/omap_hwmod_44xx_data.c: 'plat/i2c.h' Remove the duplicates. Signed-off-by: NDanny Kukawka <danny.kukawka@bisect.de> Signed-off-by: NTony Lindgren <tony@atomide.com>
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- 25 2月, 2012 2 次提交
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由 Tony Lindgren 提交于
Drivers should no longer use omap_read/write functions but instead use ioremap + read/write functions. As some USB legacy code is still shared between omap1 and omap2420, let's limit the omap_read/write to plat/usb.h. Note that the long term fix is to update the drivers to use ioremap and read/write functions. That can now be done as a separate patch series that is limited to the USB drivers. Also make sure the legacy omap1-keypad.c driver builds if selected for 2420 based systems. Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Signed-off-by: NTony Lindgren <tony@atomide.com>
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由 Tony Lindgren 提交于
There's no need to have these defines in plat/io.h. Note that we now need to ifdef omap_read/write calls as they will be available for omap1 only. While at it, clean up the includes to group them like they typically are grouped. Signed-off-by: NTony Lindgren <tony@atomide.com>
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- 23 2月, 2012 1 次提交
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由 Tomi Valkeinen 提交于
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com> Acked-by: NTony Lindgren <tony@atomide.com>
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- 15 2月, 2012 1 次提交
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由 Santosh Shilimkar 提交于
arm_memblock_steal() is not suppose to be used outside ->reserve callback. OMAP barrier errata code was using it outside reserve callback and hence it was broken. Move the allocation as part of ->reserve callback to fix the it. Signed-off-by: NSantosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: NTony Lindgren <tony@atomide.com>
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- 26 1月, 2012 1 次提交
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由 Paul Walmsley 提交于
Commit 7b250aff ("ARM: OMAP: Avoid cpu_is_omapxxxx usage until map_io is done") breaks the build on a 2420-only config on v3.3-rc1: arch/arm/mach-omap2/built-in.o: In function `omap2430_init_early': arch/arm/mach-omap2/io.c:406: undefined reference to `omap2_set_globals_243x' arch/arm/mach-omap2/io.c:410: undefined reference to `omap243x_clockdomains_init' arch/arm/mach-omap2/io.c:411: undefined reference to `omap2430_hwmod_init' Fix by only compiling omap2420_init_early() when CONFIG_SOC_OMAP2420 is selected, and only compiling omap2430_init_early() when CONFIG_SOC_OMAP2430 is selected. Signed-off-by: NPaul Walmsley <paul@pwsan.com> Cc: Tony Lindgren <tony@atomide.com>
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- 20 12月, 2011 1 次提交
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由 Vaibhav Hiremath 提交于
We need to detect the SoC revision early, but the SoC feature detection can be done later on. In order to allow further clean-up later on, this patch separates the SoC revision check from the SoC feature check. This patch doesn't change functionality or behavior of the code execution; it barely cleans up the code and splits into SoC specific implementation for Rev ID and feature detection. Signed-off-by: NVaibhav Hiremath <hvaibhav@ti.com> [tony@atomide.com: updated comments] Signed-off-by: NTony Lindgren <tony@atomide.com>
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- 14 12月, 2011 2 次提交
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由 Hemant Pedanekar 提交于
This patch updates existing macros, functions used for TI816X, to enable addition of other SoCs belonging to TI81XX family (e.g., TI814X). The approach taken is to use TI81XX/ti81xx for code/data going to be common across all TI81XX devices. cpu_is_ti81xx() is introduced to handle code common across TI81XX devices. In addition, ti8168_evm_map_io() is now replaced with ti81xx_map_io() and moved in mach-omap2/common.c as same will be used for TI814X and is not board specific. Signed-off-by: NHemant Pedanekar <hemantp@ti.com> Signed-off-by: NTony Lindgren <tony@atomide.com>
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由 Afzal Mohammed 提交于
This patch updates the common machine specific source files for support for AM33XX/AM335x with cpu type, macros for identification of AM33XX/AM335X device. Signed-off-by: NAfzal Mohammed <afzal@ti.com> Signed-off-by: NVaibhav Hiremath <hvaibhav@ti.com> Reviewed-by: NKevin Hilman <khilman@ti.com> Tested-by: NKevin Hilman <khilman@ti.com> [tony@atomide.com: updated for map_io and common.h changes, dropped CK_AM33XX] Signed-off-by: NTony Lindgren <tony@atomide.com>
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- 09 12月, 2011 1 次提交
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由 Santosh Shilimkar 提交于
On OMAP4 SOC, intecronnects has many write buffers in the async bridges and they need to be drained before CPU enters into standby state. Patch 'OMAP4: PM: Add CPUX OFF mode support' added CPU PM support but OMAP errata i688 (Async Bridge Corruption) needs to be taken care to avoid issues like system freeze, CPU deadlocks, random crashes with register accesses, synchronisation loss on initiators operating on both interconnect port simultaneously. As per the errata, if a data is stalled inside asynchronous bridge because of back pressure, it may be accepted multiple times, creating pointer misalignment that will corrupt next transfers on that data path until next reset of the system (No recovery procedure once the issue is hit, the path remains consistently broken). Async bridge can be found on path between MPU to EMIF and MPU to L3 interconnect. This situation can happen only when the idle is initiated by a Master Request Disconnection (which is trigged by software when executing WFI on CPU). The work-around for this errata needs all the initiators connected through async bridge must ensure that data path is properly drained before issuing WFI. This condition will be met if one Strongly ordered access is performed to the target right before executing the WFI. In MPU case, L3 T2ASYNC FIFO and DDR T2ASYNC FIFO needs to be drained. IO barrier ensure that there is no synchronisation loss on initiators operating on both interconnect port simultaneously. Thanks to Russell for a tip to conver assembly function to C fuction there by reducing 40 odd lines of code from the patch. Signed-off-by: NSantosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: NRichard Woodruff <r-woodruff2@ti.com> Acked-by: NJean Pihet <j-pihet@ti.com> Reviewed-by: NKevin Hilman <khilman@ti.com> Tested-by: NVishwanath BS <vishwanath.bs@ti.com> Signed-off-by: NKevin Hilman <khilman@ti.com>
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- 19 11月, 2011 1 次提交
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由 Nicolas Pitre 提交于
A generic version should replace this later. As io.c has become nearly empty, omap_init_consistent_dma_size() is moved into common.c so that io.c can be removed entirely. Signed-off-by: NNicolas Pitre <nicolas.pitre@linaro.org> Tested-by: NKevin Hilman <khilman@ti.com>
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- 18 11月, 2011 1 次提交
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由 Tony Lindgren 提交于
As suggested by Russell King - ARM Linux <linux@arm.linux.org.uk>, there's no need to keep local prototypes in non-local headers. Add mach-omap1/common.h and mach-omap2/common.h and move the local prototypes there from plat/common.h and mach/omap4-common.h. Signed-off-by: NTony Lindgren <tony@atomide.com> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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- 16 11月, 2011 1 次提交
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由 Marc Zyngier 提交于
After the MULTI_IRQ_HANDLER conversion, a couple of global variables can be removed. Signed-off-by: NMarc Zyngier <marc.zyngier@arm.com>
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- 05 11月, 2011 1 次提交
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由 Sanjeev Premi 提交于
When customizing omap2plus_defconfig to build for only one board (omap3evm), I came across these warnings and errors (filenames truncated): arch/arm/mach-omap2/board-generic.c:76:20: warning: 'omap4_init' defined but not used arch/arm/mach-omap2/built-in.o: In function `omap2420_init_early': arch/arm/mach-omap2/io.c:364: undefined reference to `omap2_set_globals_242x' arch/arm/mach-omap2/io.c:366: undefined reference to `omap2xxx_voltagedomains_init' arch/arm/mach-omap2/io.c:367: undefined reference to `omap242x_powerdomains_init' arch/arm/mach-omap2/io.c:368: undefined reference to `omap242x_clockdomains_init' arch/arm/mach-omap2/io.c:369: undefined reference to `omap2420_hwmod_init' arch/arm/mach-omap2/built-in.o: In function `omap2430_init_early': arch/arm/mach-omap2/io.c:376: undefined reference to `omap2_set_globals_243x' arch/arm/mach-omap2/io.c:378: undefined reference to `omap2xxx_voltagedomains_init' arch/arm/mach-omap2/io.c:379: undefined reference to `omap243x_powerdomains_init' arch/arm/mach-omap2/io.c:380: undefined reference to `omap243x_clockdomains_init' arch/arm/mach-omap2/io.c:381: undefined reference to `omap2430_hwmod_init' arch/arm/mach-omap2/built-in.o: In function `omap4430_init_early': arch/arm/mach-omap2/io.c:436: undefined reference to `omap2_set_globals_443x' arch/arm/mach-omap2/io.c:438: undefined reference to `omap44xx_voltagedomains_init' arch/arm/mach-omap2/io.c:439: undefined reference to `omap44xx_powerdomains_init' arch/arm/mach-omap2/io.c:440: undefined reference to `omap44xx_clockdomains_init' arch/arm/mach-omap2/io.c:441: undefined reference to `omap44xx_hwmod_init' This patch fixes them. Signed-off-by: NSanjeev Premi <premi@ti.com> Acked-by: NThomas Weber <weber@corscience.de> [tony@atomide.com: updated to fix warnings for board-generic.c] Signed-off-by: NTony Lindgren <tony@atomide.com>
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- 20 10月, 2011 2 次提交
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由 Tony Lindgren 提交于
We don't have cpu_is_omapxxxx SoC detection initialized until SoC detection is initialized from init_early. Note that with the common map_io we should no longer need cpu_is_omapxxxx for ioremap. Acked-by: NNicolas Pitre <nicolas.pitre@linaro.org> Signed-off-by: NTony Lindgren <tony@atomide.com>
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由 Tony Lindgren 提交于
Otherwise we can't do generic map_io as we currently rely on static mappings that work only because of arch_ioremap. Acked-by: NNicolas Pitre <nicolas.pitre@linaro.org> Reviewed-by: NSantosh Shilimkar <santosh.shilimkar@ti.com> Tested-by: NSantosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: NTony Lindgren <tony@atomide.com>
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