diff options
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/mach-omap2/Makefile | 1 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/devices.c | 29 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/omap_hwmod_2xxx_ipblock_data.c | 6 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/omap_hwmod_3xxx_data.c | 6 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/pmu.c | 82 |
5 files changed, 95 insertions, 29 deletions
diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile index f629df13f157..0deb30072977 100644 --- a/arch/arm/mach-omap2/Makefile +++ b/arch/arm/mach-omap2/Makefile @@ -199,6 +199,7 @@ obj-$(CONFIG_ARCH_OMAP4) += omap_hwmod_44xx_data.o # EMU peripherals obj-$(CONFIG_OMAP3_EMU) += emu.o +obj-$(CONFIG_HW_PERF_EVENTS) += pmu.o # L3 interconnect obj-$(CONFIG_ARCH_OMAP3) += omap_l3_smx.o diff --git a/arch/arm/mach-omap2/devices.c b/arch/arm/mach-omap2/devices.c index 33bdbe4633aa..1b7e1c6e5359 100644 --- a/arch/arm/mach-omap2/devices.c +++ b/arch/arm/mach-omap2/devices.c @@ -434,34 +434,6 @@ static void omap_init_mcspi(void) static inline void omap_init_mcspi(void) {} #endif -static struct resource omap2_pmu_resource = { - .start = 3 + OMAP_INTC_START, - .flags = IORESOURCE_IRQ, -}; - -static struct resource omap3_pmu_resource = { - .start = 3 + OMAP_INTC_START, - .flags = IORESOURCE_IRQ, -}; - -static struct platform_device omap_pmu_device = { - .name = "arm-pmu", - .id = ARM_PMU_DEVICE_CPU, - .num_resources = 1, -}; - -static void omap_init_pmu(void) -{ - if (cpu_is_omap24xx()) - omap_pmu_device.resource = &omap2_pmu_resource; - else if (cpu_is_omap34xx()) - omap_pmu_device.resource = &omap3_pmu_resource; - else - return; - - platform_device_register(&omap_pmu_device); -} - /** * omap_init_rng - bind the RNG hwmod to the RNG omap_device * @@ -664,7 +636,6 @@ static int __init omap2_init_devices(void) omap_init_mcpdm(); omap_init_mcspi(); } - omap_init_pmu(); omap_init_sti(); omap_init_rng(); omap_init_sham(); diff --git a/arch/arm/mach-omap2/omap_hwmod_2xxx_ipblock_data.c b/arch/arm/mach-omap2/omap_hwmod_2xxx_ipblock_data.c index de39017d2e28..d59a9ce40d2a 100644 --- a/arch/arm/mach-omap2/omap_hwmod_2xxx_ipblock_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_2xxx_ipblock_data.c @@ -218,8 +218,14 @@ struct omap_hwmod omap2xxx_l4_wkup_hwmod = { }; /* MPU */ +static struct omap_hwmod_irq_info omap2xxx_mpu_irqs[] = { + { .name = "pmu", .irq = 3 }, + { .irq = -1 } +}; + struct omap_hwmod omap2xxx_mpu_hwmod = { .name = "mpu", + .mpu_irqs = omap2xxx_mpu_irqs, .class = &mpu_hwmod_class, .main_clk = "mpu_ck", }; diff --git a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c index ffc014244386..4ad1f2b270af 100644 --- a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c @@ -93,8 +93,14 @@ static struct omap_hwmod omap3xxx_l4_sec_hwmod = { }; /* MPU */ +static struct omap_hwmod_irq_info omap3xxx_mpu_irqs[] = { + { .name = "pmu", .irq = 3 }, + { .irq = -1 } +}; + static struct omap_hwmod omap3xxx_mpu_hwmod = { .name = "mpu", + .mpu_irqs = omap3xxx_mpu_irqs, .class = &mpu_hwmod_class, .main_clk = "arm_fck", }; diff --git a/arch/arm/mach-omap2/pmu.c b/arch/arm/mach-omap2/pmu.c new file mode 100644 index 000000000000..cf68bab4fde1 --- /dev/null +++ b/arch/arm/mach-omap2/pmu.c @@ -0,0 +1,82 @@ +/* + * OMAP2 ARM Performance Monitoring Unit (PMU) Support + * + * Copyright (C) 2012 Texas Instruments, Inc. + * + * Contacts: + * Jon Hunter <jon-hunter@ti.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#include <asm/pmu.h> + +#include <plat/omap_hwmod.h> +#include <plat/omap_device.h> + +static char *omap2_pmu_oh_names[] = {"mpu"}; +static char *omap3_pmu_oh_names[] = {"mpu", "debugss"}; +static struct platform_device *omap_pmu_dev; + +/** + * omap2_init_pmu - creates and registers PMU platform device + * @oh_num: Number of OMAP HWMODs required to create PMU device + * @oh_names: Array of OMAP HWMODS names required to create PMU device + * + * Uses OMAP HWMOD framework to create and register an ARM PMU device + * from a list of HWMOD names passed. Currently supports OMAP2 and + * OMAP3 devices. + */ +static int __init omap2_init_pmu(unsigned oh_num, char *oh_names[]) +{ + int i; + struct omap_hwmod *oh[2]; + char *dev_name = "arm-pmu"; + + if ((!oh_num) || (oh_num > 2)) + return -EINVAL; + + for (i = 0; i < oh_num; i++) { + oh[i] = omap_hwmod_lookup(oh_names[i]); + if (!oh[i]) { + pr_err("Could not look up %s hwmod\n", oh_names[i]); + return -ENODEV; + } + } + + omap_pmu_dev = omap_device_build_ss(dev_name, -1, oh, oh_num, NULL, 0, + NULL, 0, 0); + WARN(IS_ERR(omap_pmu_dev), "Can't build omap_device for %s.\n", + dev_name); + + return IS_ERR(omap_pmu_dev) ? PTR_ERR(omap_pmu_dev) : 0; +} + +static int __init omap_init_pmu(void) +{ + unsigned oh_num; + char **oh_names; + + /* + * To create an ARM-PMU device the following HWMODs + * are required for the various OMAP2+ devices. + * + * OMAP24xx: mpu + * OMAP3xxx: mpu, debugss + */ + if (cpu_is_omap24xx()) { + oh_num = ARRAY_SIZE(omap2_pmu_oh_names); + oh_names = omap2_pmu_oh_names; + } else if (cpu_is_omap34xx()) { + oh_num = ARRAY_SIZE(omap3_pmu_oh_names); + oh_names = omap3_pmu_oh_names; + } else { + return 0; + } + + return omap2_init_pmu(oh_num, oh_names); +} +subsys_initcall(omap_init_pmu); |