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2014-07-18ARM: i.MX53: globally disable supervisor protectSteffen Trumtrar1-0/+2
Most peripherals on the i.MX53 have an Off-Platform Peripheral Access Control Register (OPACR) in which the access rights (together with the MPROT registers) can be declared. However, this does not seem to work for example for SSI1+SDMA, because the supervisor bit is not set for the SDMA unit. It does work for SSI2, the QSB for example uses SSI2 for its audio. But SSI2 only works because it does NOT have an OPACR. The right solution would be to fix the access rights for the SDMA, but the unit responsible for this is the Central Security Unit (CSU), which of course is NOT documented. So, until documentation for this is openly available, turn off the supervisor protection because it cripples the hardware. Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de> Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18ARM: i.MX: allow disabling supervisor protect via DTSteffen Trumtrar2-0/+15
The i.MX SoCs allow to setup fine grained access rights to peripherals on the AIPS bus. This is done via the Peripheral Access Register (PAR) in e.g. the i.MX21 or in later SoC versions the Off-Platform Peripheral Access Control Register (OPACR), e.g. i.MX53. Under certain circumstances this leads to problems in which bus masters are not granted their access rights to peripherals. To be able to disable these restrictions on DT platforms, add a helper function that looks for AIPS nodes in the DT and disables them for every compatible node it finds. The compatible has to be declared in the mach-specific entry file, where this helper function should then be called. Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de> Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18ARM: i.MX27 clk: Add 26 MHz oscillator circuit clock gateAlexander Shiyan1-5/+6
This patch adds missing 26 MHz oscillator circuit clock gate support. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18ARM: i.MX27 clk: Remove unused definitionsAlexander Shiyan1-25/+0
This patch removes definitions which not used anywhere in the driver. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18ARM: i.MX27 clk: Introduce DT include for clock providerAlexander Shiyan1-185/+162
Use clock defines in order to make devicetrees more human readable. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18ARM: i.MX: Remove Freescale Logic Product Development i.MX27 Lite-Kit board ↵Alexander Shiyan4-94/+0
support The board has no insufficient support to be fully functional and seems has no users. This patch removes support for this board. However, the support may be added in the future by using the devicetree. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18ARM: i.MX: Remove excess symbols ARCH_MX1, ARCH_MX25 and MACH_MX27Alexander Shiyan2-13/+1
This patch removes excess symbols ARCH_MX1, ARCH_MX25 and MACH_MX27. Instead we use SOC_IMX*. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18ARM: i.MX: Remove i.MX1 camera supportAlexander Shiyan7-112/+0
i.MX1 camera driver has been removed by the commit 90b055898e. This patch removes remaining support files for this camera. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18ARM: imx: use PTR_ERR_OR_ZEROFabian Frederick5-16/+5
replace IS_ERR/PTR_ERR Cc: Sascha Hauer <kernel@pengutronix.de> Cc: linux-arm-kernel@lists.infradead.org Signed-off-by: Fabian Frederick <fabf@skynet.be> Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18ARM: imx: build cpu_is_imx6sl function conditionallyArnd Bergmann1-0/+7
imx6q_pm_enter calls imx6sl_set_wait_clk when run on an imx6sl based machine. However if support for imx6sl is not enabled at compile time, this prevents us from building the kernel and we get this link error instead: arch/arm/mach-imx/built-in.o: In function `imx6q_pm_enter': :(.text+0x4b84): undefined reference to `imx6sl_set_wait_clk' This makes the cpu_is_imx6sl function conditionally return false if imx6sl is disabled at compile-time, which matches what the older cpu_is_mx* macros did. We have similar inline functions for the other imx6 variants, but so far I have not run into a case where the extra #ifdef is necessary. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18ARM: imx: imx6sx uses imx6q cpuidle codeArnd Bergmann1-0/+2
Building a kernel for imx6sx but without imx6q support results in this link error because of the missing cpuidle driver: arch/arm/mach-imx/built-in.o: In function `imx6sx_init_late'::(.init.text+0xc228): undefined reference to `imx6q_cpuidle_init' This patch adds a Makefile entry so we always build support for the imx6q_cpuidle code when at least one of the 6sx or 6q variants are enabled. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18ARM: imx: drop PL310 errata 588369 and 727915Shawn Guo1-4/+0
The PL310 integrated on i.MX6 series and VF610 are revision r3p1 and later. Per ARM PL310 errata document, 588369 is fixed in r2p0 and 727915 is fixed in r3p1. Neither is needed for i.MX6 or VF610. So let's drop them. Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18ARM: imx_v6_v7_defconfig: add FSL_EDMA and PRINTK_TIMEStefan Agner1-0/+2
Add EDMA for DMA support for Vybrid SoCs. Also add printk time. Signed-off-by: Stefan Agner <stefan@agner.ch> Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18ARM: imx: clk-imx6sx: register SSI/SSI_IPG as shared gate clocksFabio Estevam1-6/+9
SSI and SSI_IPG are clocks controlled by the same clock gating field, so register them with imx_clk_gate2_shared. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18ARM: imx_v6_v7_defconfig: Enable flexcan driver for can supportSilvio Fricke1-0/+2
Signed-off-by: Silvio Fricke <silvio.fricke@gmail.com> Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18ARM: imx_v6_v7_defconfig: Enable STMPE gpio supportSilvio Fricke1-0/+1
Enable STMPE gpio support as this is used on MX6 Data Modul edm-qmx6 board. Signed-off-by: Silvio Fricke <silvio.fricke@gmail.com> Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18ARM: imx: mark .dt_compat as constShawn Guo9-9/+9
Otherwise GCC will mark the .init.rodata section R/W, which causes a compile error once we add other real R/O data. Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18ARM: mx6: Only check for 1.2GHz for mx6quadFabio Estevam1-1/+1
It is only the mx6quad variant that can run up to 1.2GHz, so add the check accordingly. This avoids getting the following warning on a mx6solo: failed to disable 1.2 GHz OPP Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18ARM: imx_v4_v5_defconfig: Add USB device optionsFabio Estevam1-0/+2
Allow USB device to work by default. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18ARM: i.MX25 clk: Use of_clk_init() for DT caseDenis Carikli3-22/+20
Replace .init_time() hook with of_clk_init() for DT targets. Based on: d4347ee ARM: i.MX27 clk: Use of_clk_init() for DT case Signed-off-by: Denis Carikli <denis@eukrea.com> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18ARM i.MX25 clk: Fix gpt timer clock.Denis Carikli1-1/+1
The gpt0 timer clock has been wrong since: 6bbaec5 ARM i.MX25: implement clocks using common clock framework Signed-off-by: Denis Carikli <denis@eukrea.com> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18ARM: i.MX21 clk: Add devicetree supportAlexander Shiyan1-123/+136
This patch adds devicetree support CCM module for i.MX21 CPUs. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18ARM: i.MX21 clk: Cleanup driverAlexander Shiyan1-24/+1
This is a cleanup for i.MX21 clk driver. This change includes: - Reduce license text. - Remove unused definitions. - Remove unused #include and sort the rest. - Remove useless comment. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18ARM: i.MX21 clk: Remove clk_register_clkdev() for unused clocksAlexander Shiyan1-19/+0
This patch removes clk_register_clkdev() for the clocks that do not have any users for boards and drivers. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18ARM: i.MX21 clk: Clock initialization reworkAlexander Shiyan2-45/+75
This patch perform rework i.MX21 clock initialization. This includes adding missing clocks and sort clocks by register address. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18ARM: clk-imx51-imx53: Remove clk_register_clkdev()Fabio Estevam1-76/+0
mx51 and mx53 are device tree only platforms, so we no longer need all these calls to clk_register_clkdev(). Only keep cpu0 and gpc_dvfs clk_register_clkdev() calls. Tested on imx51-babbage and imx53-qsb boards. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18ARM: imx: add standby mode support for suspendAnson Huang3-5/+32
Add standby mode support for suspend, to enter standby mode: echo standby > /sys/power/state; Use UART or RTC alarm to wake up system, when system enters standby mode, SOC will enter STOP mode with ARM core kept power on and 24M XTAL on. Signed-off-by: Anson Huang <b20788@freescale.com> Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18ARM: imx: mem bit must be cleared before entering DSM modeAnson Huang3-4/+8
According to hardware design, mem bit must be clear before entering DSM mode, as ARM core will be power gated in DSM mode. Signed-off-by: Anson Huang <b20788@freescale.com> Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18ARM: imx6qdl: switch to use macro for clock IDShawn Guo1-282/+247
Instead of using enum for clock ID, let's switch imx6qdl clock driver to use macro. In this case, device tree can reuse these macros to improve readability. Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18ARM: imx: add cpuidle support for i.mx6sxAnson Huang2-1/+10
Add cpuidle support for i.MX6SX, derive from i.MX6Q's cpuidle, two levels supported: 1. WFI; 2. WAIT mode. Signed-off-by: Anson Huang <b20788@freescale.com> Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18ARM: imx: add suspend support for i.mx6sxAnson Huang3-3/+28
Add suspend support for i.MX6SX. To enter suspend, echo mem > /sys/power/state. To exit suspend, using RTC alarm or enable debug UART wakeup. Signed-off-by: Anson Huang <b20788@freescale.com> Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18ARM: i.MX: Remove Freescale i.MX27 IP Camera board supportAlexander Shiyan4-88/+0
The board has no insufficient support to be fully functional and seems has no users. This patch removes support for this board. However, the support may be added in the future by using the devicetree. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18ARM: i.MX system: Add a reset fallback if base address of watchdog is not setAlexander Shiyan1-0/+4
This patch adds a reset fallback if base address of watchdog is not set. This is intended for a targets not compatible with imx-21 watchdog, i.MX1 for example. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18ARM: i.MX system: Simplify handling watchdog clockAlexander Shiyan1-13/+7
This patch simplifies handling watchdog clock a bit. As an additional change, now we properly check WDT clock in a reset function. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18ARM: imx_v6_v7_defconfig: Select CONFIG_SOC_IMX6SXFabio Estevam1-0/+1
Let mx6sx be built by default. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18ARM: i.MX clk: Move clock check function in common locationAlexander Shiyan13-73/+32
This patch moves clock check function in common i.MX location and switch i.MX clk drivers to use this new function. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18ARM: i.MX27 clk: Use of_clk_init() for DT caseAlexander Shiyan3-35/+29
Replace .init_time() hook with of_clk_init() for DT targets. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18ARM: i.MX27 clk: Separate DT and non-DT init procedureAlexander Shiyan1-15/+24
This patch separates DT and non-DT clock initialization procedure, so we can avoid a lot of unneeded clk_register_clkdev() for DT case. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18ARM: i.MX: Remove excess variableAlexander Shiyan1-8/+7
Base address for driver is global, there are no need to use intermediate variable for it. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18ARM: i.MX: Use of_clk_get_by_name() for timer clocks for DT case.Alexander Shiyan7-28/+25
Use of_clk_get_by_name() for timer clocks for DT case. This patch eliminates a lot of unneeded clk_register_clkdev() calls for GPT. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18ARM: imx: defconfig: Select CONFIG_FHANDLEFabio Estevam3-0/+3
CONFIG_FHANDLE=y is needed when running systemd with version >=210, so that it can spawn a serial tty via getty. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18ARM: imx5: remove mx51.h and mx53.hShawn Guo5-654/+0
Now all the macros in mx51.h and mx53.h are used nowhere, so remove them. Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18ARM: imx5: clean function declarations in mx51.hShawn Guo2-5/+1
The mx51_display_revision() is a dead declaration. Remove it. Also, move mx51_revision() into common.h. Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18ARM: imx5: remove file mm-imx5.cShawn Guo6-67/+1
The only code left in mm-imx5.c is to create static mapping. While all IMX platform code are moved to use dynamic mapping, the file can just be removed now. Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18ARM: imx5: move init hooks into mach-imx5x.cShawn Guo4-48/+50
These imx5 init_early[late] hooks are called only from mach-imx5x.c. Let's move them into mach-imx5x.c. While at it, replace the static mapping in imx51_ipu_mipi_setup() with dynamic mapping. Also this function and imx_src_init() do not necessarily to be called at .init_early hook, so move them into .init_machine. The mxc_iomux_v3_init() is dropped from imx51_init_early() in the moving, since it's only needed by non-DT boot. Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18ARM: imx5: use dynamic mapping for Cortex and GPC blockShawn Guo3-34/+60
The imx5 pm code uses static mapping to access Cortex and GPC registers. The patch create struct imx5_pm_data to encode physical address of Cortex and GPC block, and create dynamic mapping for them at run-time. Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18ARM: imx5: reuse clock CCM mapping in pm codeShawn Guo3-4/+17
The imx5 pm code needs to access CCM registers. Let's remove the use of CCM static mapping in pm code by reusing the dynamic mapping created in clock code. Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18ARM: imx5: use dynamic mapping for DPLL blockShawn Guo1-17/+48
Replace the static mapping of DPLL block with dynamic mapping by calling ioremap(). Ideally, this should be done by calling of_iomap(), so that the physical address of DPLL can also be retrieved from device tree. But unfortunately, DPLL blocks are not defined in DT in the first place. So to maintain the compatibility of existing DTB, we use ioremap() with physical address defines in the code. Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18ARM: imx5: use dynamic mapping for CCM blockShawn Guo1-39/+51
Replace the static mapping of CCM block with dynamic mapping and retrieve CCM base address from device tree. Though it's not nice to encode the variable ccm_base in macros, it helps to avoid a massive churn on the code. Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18ARM: imx5: remove header crm-regs-imx5.hShawn Guo3-602/+70
Most of the macros in crm-regs-imx5.h are used nowhere. Let's move the needed ones into the C files, and remove the header. Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
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