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* ARM: i.MX53: globally disable supervisor protectSteffen Trumtrar2014-07-181-0/+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>
* ARM: imx: mark .dt_compat as constShawn Guo2014-07-181-1/+1
| | | | | | | | 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>
* ARM: imx5: remove mx51.h and mx53.hShawn Guo2014-07-181-1/+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>
* ARM: imx5: remove file mm-imx5.cShawn Guo2014-07-181-1/+0
| | | | | | | | 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>
* ARM: imx5: move init hooks into mach-imx5x.cShawn Guo2014-07-181-0/+11
| | | | | | | | | | | | | | | 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>
* ARM: imx5: tzic_init_irq() can directly be .init_irq hookShawn Guo2014-07-181-1/+1
| | | | | | | | After i.MX51 supports DT only, tzic_init_irq() can figure out the tzic_base on its own. Thus, it can directly be .init_irq hook, and mx51[53]_init_irq() can be saved. Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
* ARM: i.MX: Setup IRQ handler from IRQ driverAlexander Shiyan2014-05-121-1/+0
| | | | | | | | This patch moves IRQ handler setup to the its corresponded IRQ driver (AVIC, TZIC). Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
* ARM: imx: use __initconst for const init definitionShawn Guo2013-12-311-1/+1
| | | | | | | | | | | | | | | | | 0-DAY kernel build testing backend reports the following. scripts/checkpatch.pl 0001-ARM-imx-add-support-code-for-IMX50-based-machines.patch # many are suggestions rather than must-fix ERROR: Use of const init definition must use __initconst #80: arch/arm/mach-imx/mach-imx50.c:26: +static const char *imx50_dt_board_compat[] __initdata = { While at it, fix the error globally for IMX platform. Reported-by: Fengguang Wu <fengguang.wu@intel.com> Acked-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
* ARM: imx: remove custom .init_time hookSebastian Hesselbarth2013-09-291-6/+0
| | | | | | | | With arch/arm calling of_clk_init(NULL) from time_init(), we can now remove custom .init_time hooks. Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Acked-by: Shawn Guo <shawn.guo@linaro.org>
* ARM: imx: move imx53-qsb audio codec clk lookup into DTShawn Guo2013-06-171-16/+0
| | | | | | | | | | | With device tree clk lookup support in place, we can move audio codec clk lookup for ssi_ext1 into device tree now, so that imx53_qsb_init() can be saved. Since ssi_ext2 lookup is used nowhere, it gets removed together with ssi_ext1 lookup from clk driver. Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
* ARM: imx: create mxc_arch_reset_init_dt() for DT bootShawn Guo2013-06-171-1/+1
| | | | | | | | | | The mxc_arch_reset_init() uses static mapping and calls clk_get_sys() to get clock. It's suitable for non-DT boot but not for DT boot where dynamic mapping and of_clk_get() should be used instead. Create mxc_arch_reset_init_dt() as the DT variant of mxc_arch_reset_init(), and change DT platforms to use it. Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
* ARM: imx: move clk_prepare() out from mxc_restart()Shawn Guo2013-06-171-0/+3
| | | | | | | | | | | | | | | It's inappropriate to call clk_prepare() in mxc_restart(), because the restart routine could be called in atomic context. Move clk_get() and clk_prepare() into mxc_arch_reset_init() and only have the atomic part clk_enable() be called in mxc_restart(). As a result, mxc_arch_reset_init() needs to be called after clk gets initialized. While there, it also changes printk(KERN_ERR ...) to pr_err() and adds __init annotation for mxc_arch_reset_init(). Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
* ARM: delete struct sys_timerStephen Warren2012-12-241-10/+6
| | | | | | | | | | | | | | | | | | Now that the only field in struct sys_timer is .init, delete the struct, and replace the machine descriptor .timer field with the initialization function itself. This will enable moving timer drivers into drivers/clocksource without having to place a public prototype of each struct sys_timer object into include/linux; the intent is to create a single of_clocksource_init() function that determines which timer driver to initialize by scanning the device dtree, much like the proposed irqchip_init() at: http://www.spinics.net/lists/arm-kernel/msg203686.html Includes mach-omap2 fixes from Igor Grinberg. Tested-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Stephen Warren <swarren@nvidia.com>
* ARM: mx5: Replace clk_register_clkdev with clock DT lookupFabio Estevam2012-11-221-30/+1
| | | | | | | | | Similarly as it was done for mx6q, use a DT lookup in order to make maintainance task for the clock devices easier. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Acked-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* ARM: imx: include hardware.h rather than mach/hardware.hShawn Guo2012-10-151-1/+1
| | | | | | | | | | | It moves a bunch of header files included in hardware.h and itself from mach-imx/include/mach to mach-imx, and updates users to include hardware.h rather than mach/hardware.h. The files in mach-imx/devices will need to include "../hardware.h". Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Arnd Bergmann <arnd@arndb.de>
* i2c: imx: remove cpu_is_xxx by using platform_device_idShawn Guo2012-10-151-3/+3
| | | | | | | | | | | | | | | | | | | This is some amount of work left/forgot from device tree conversion. Instead of checking cpu_is_xxx to determine the controller type, the driver should use platform_device_id, which should match the device tree compatible string. The patch changes the driver to use platform_device_id rather than cpu_is_xxx to determine the controller type/version. It also updates the platform code and device tree source accordingly. As the result, mach/hardware.h inclusion gets removed from the driver. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Arnd Bergmann <arnd@arndb.de> Cc: Wolfram Sang <w.sang@pengutronix.de> Cc: linux-i2c@vger.kernel.org
* ARM: imx: include common.h rather than mach/common.hShawn Guo2012-10-151-1/+2
| | | | | | | | | | | | Rename mach-imx/include/mach/common.h to mach-imx/common.h and update all users to include common.h rather than mach/common.h. It also removes an unneeded inclusion to common.h in mach-imx/devices/devices.c. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Arnd Bergmann <arnd@arndb.de>
* ARM: imx53: support device tree boot onlyShawn Guo2012-09-111-0/+99
With device tree kernel provides the equal support as those imx53 board files, it's time to remove the board files and get imx53 support device tree only. Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
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