forked from Minki/linux
bab588fcfb
This is a larger set of new functionality for the existing SoC families,
including:
* vt8500 gains support for new CPU cores, notably the Cortex-A9 based wm8850
* prima2 gains support for the "marco" SoC family, its SMP based cousin
* tegra gains support for the new Tegra4 (Tegra114) family
* socfpga now supports a newer version of the hardware including SMP
* i.mx31 and bcm2835 are now using DT probing for their clocks
* lots of updates for sh-mobile
* OMAP updates for clocks, power management and USB
* i.mx6q and tegra now support cpuidle
* kirkwood now supports PCIe hot plugging
* tegra clock support is updated
* tegra USB PHY probing gets implemented diffently
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Merge tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC-specific updates from Arnd Bergmann:
"This is a larger set of new functionality for the existing SoC
families, including:
- vt8500 gains support for new CPU cores, notably the Cortex-A9 based
wm8850
- prima2 gains support for the "marco" SoC family, its SMP based
cousin
- tegra gains support for the new Tegra4 (Tegra114) family
- socfpga now supports a newer version of the hardware including SMP
- i.mx31 and bcm2835 are now using DT probing for their clocks
- lots of updates for sh-mobile
- OMAP updates for clocks, power management and USB
- i.mx6q and tegra now support cpuidle
- kirkwood now supports PCIe hot plugging
- tegra clock support is updated
- tegra USB PHY probing gets implemented diffently"
* tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (148 commits)
ARM: prima2: remove duplicate v7_invalidate_l1
ARM: shmobile: r8a7779: Correct TMU clock support again
ARM: prima2: fix __init section for cpu hotplug
ARM: OMAP: Consolidate OMAP USB-HS platform data (part 3/3)
ARM: OMAP: Consolidate OMAP USB-HS platform data (part 1/3)
arm: socfpga: Add SMP support for actual socfpga harware
arm: Add v7_invalidate_l1 to cache-v7.S
arm: socfpga: Add entries to enable make dtbs socfpga
arm: socfpga: Add new device tree source for actual socfpga HW
ARM: tegra: sort Kconfig selects for Tegra114
ARM: tegra: enable ARCH_REQUIRE_GPIOLIB for Tegra114
ARM: tegra: Fix build error w/ ARCH_TEGRA_114_SOC w/o ARCH_TEGRA_3x_SOC
ARM: tegra: Fix build error for gic update
ARM: tegra: remove empty tegra_smp_init_cpus()
ARM: shmobile: Register ARM architected timer
ARM: MARCO: fix the build issue due to gic-vic-to-irqchip move
ARM: shmobile: r8a7779: Correct TMU clock support
ARM: mxs_defconfig: Select CONFIG_DEVTMPFS_MOUNT
ARM: mxs: decrease mxs_clockevent_device.min_delta_ns to 2 clock cycles
ARM: mxs: use apbx bus clock to drive the timers on timrotv2
...
92 lines
2.5 KiB
C
92 lines
2.5 KiB
C
/*
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* OMAP2 ARM Performance Monitoring Unit (PMU) Support
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*
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* Copyright (C) 2012 Texas Instruments, Inc.
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*
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* Contacts:
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* Jon Hunter <jon-hunter@ti.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#include <asm/pmu.h>
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#include "soc.h"
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#include "omap_hwmod.h"
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#include "omap_device.h"
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static char *omap2_pmu_oh_names[] = {"mpu"};
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static char *omap3_pmu_oh_names[] = {"mpu", "debugss"};
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static char *omap4430_pmu_oh_names[] = {"l3_main_3", "l3_instr", "debugss"};
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static struct platform_device *omap_pmu_dev;
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/**
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* omap2_init_pmu - creates and registers PMU platform device
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* @oh_num: Number of OMAP HWMODs required to create PMU device
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* @oh_names: Array of OMAP HWMODS names required to create PMU device
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*
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* Uses OMAP HWMOD framework to create and register an ARM PMU device
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* from a list of HWMOD names passed. Currently supports OMAP2, OMAP3
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* and OMAP4 devices.
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*/
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static int __init omap2_init_pmu(unsigned oh_num, char *oh_names[])
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{
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int i;
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struct omap_hwmod *oh[3];
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char *dev_name = "arm-pmu";
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if ((!oh_num) || (oh_num > 3))
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return -EINVAL;
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for (i = 0; i < oh_num; i++) {
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oh[i] = omap_hwmod_lookup(oh_names[i]);
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if (!oh[i]) {
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pr_err("Could not look up %s hwmod\n", oh_names[i]);
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return -ENODEV;
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}
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}
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omap_pmu_dev = omap_device_build_ss(dev_name, -1, oh, oh_num, NULL, 0);
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WARN(IS_ERR(omap_pmu_dev), "Can't build omap_device for %s.\n",
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dev_name);
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if (IS_ERR(omap_pmu_dev))
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return PTR_ERR(omap_pmu_dev);
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return 0;
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}
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static int __init omap_init_pmu(void)
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{
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unsigned oh_num;
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char **oh_names;
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/*
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* To create an ARM-PMU device the following HWMODs
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* are required for the various OMAP2+ devices.
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*
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* OMAP24xx: mpu
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* OMAP3xxx: mpu, debugss
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* OMAP4430: l3_main_3, l3_instr, debugss
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* OMAP4460/70: mpu, debugss
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*/
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if (cpu_is_omap443x()) {
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oh_num = ARRAY_SIZE(omap4430_pmu_oh_names);
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oh_names = omap4430_pmu_oh_names;
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/* XXX Remove the next two lines when CTI driver available */
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pr_info("ARM PMU: not yet supported on OMAP4430 due to missing CTI driver\n");
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return 0;
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} else if (cpu_is_omap34xx() || cpu_is_omap44xx()) {
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oh_num = ARRAY_SIZE(omap3_pmu_oh_names);
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oh_names = omap3_pmu_oh_names;
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} else {
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oh_num = ARRAY_SIZE(omap2_pmu_oh_names);
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oh_names = omap2_pmu_oh_names;
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}
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return omap2_init_pmu(oh_num, oh_names);
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}
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omap_subsys_initcall(omap_init_pmu);
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