From 5277518d2a2ca1d93bda682afe60bc7846756c41 Mon Sep 17 00:00:00 2001 From: Koen Kooi Date: Wed, 2 Jul 2008 09:02:57 +0000 Subject: linux-omap2 git: run dos2unix over patch files --- .../beagleboard/0001-omap3-cpuidle.patch | 900 ++++++++++----------- .../beagleboard/0002-omap3-cpuidle.patch | 176 ++-- .../beagleboard/fix-dispc-clocks.patch | 294 +++---- .../omap3evm/0001-omap3-cpuidle.patch | 900 ++++++++++----------- .../omap3evm/0002-omap3-cpuidle.patch | 176 ++-- 5 files changed, 1223 insertions(+), 1223 deletions(-) (limited to 'packages/linux/linux-omap2-git') diff --git a/packages/linux/linux-omap2-git/beagleboard/0001-omap3-cpuidle.patch b/packages/linux/linux-omap2-git/beagleboard/0001-omap3-cpuidle.patch index 28b1ef2214..cdc9447b4c 100644 --- a/packages/linux/linux-omap2-git/beagleboard/0001-omap3-cpuidle.patch +++ b/packages/linux/linux-omap2-git/beagleboard/0001-omap3-cpuidle.patch @@ -1,450 +1,450 @@ -From: "Rajendra Nayak" -To: -Subject: [PATCH 01/02] OMAP3 CPUidle driver -Date: Tue, 10 Jun 2008 12:39:00 +0530 - -This patch adds the OMAP3 cpuidle driver. Irq enable/disable is done in the core cpuidle driver -before it queries the governor for the next state. - -Signed-off-by: Rajendra Nayak - ---- - arch/arm/mach-omap2/Makefile | 2 - arch/arm/mach-omap2/cpuidle34xx.c | 293 ++++++++++++++++++++++++++++++++++++++ - arch/arm/mach-omap2/cpuidle34xx.h | 51 ++++++ - arch/arm/mach-omap2/pm34xx.c | 5 - drivers/cpuidle/cpuidle.c | 10 + - 5 files changed, 359 insertions(+), 2 deletions(-) - -Index: linux-omap-2.6/arch/arm/mach-omap2/Makefile -=================================================================== ---- linux-omap-2.6.orig/arch/arm/mach-omap2/Makefile 2008-06-09 20:15:33.855303920 +0530 -+++ linux-omap-2.6/arch/arm/mach-omap2/Makefile 2008-06-09 20:15:39.569121361 +0530 -@@ -20,7 +20,7 @@ obj-y += pm.o - obj-$(CONFIG_ARCH_OMAP2) += pm24xx.o - obj-$(CONFIG_ARCH_OMAP2420) += sleep242x.o - obj-$(CONFIG_ARCH_OMAP2430) += sleep243x.o --obj-$(CONFIG_ARCH_OMAP3) += pm34xx.o sleep34xx.o -+obj-$(CONFIG_ARCH_OMAP3) += pm34xx.o sleep34xx.o cpuidle34xx.o - obj-$(CONFIG_PM_DEBUG) += pm-debug.o - endif - -Index: linux-omap-2.6/arch/arm/mach-omap2/cpuidle34xx.c -=================================================================== ---- /dev/null 1970-01-01 00:00:00.000000000 +0000 -+++ linux-omap-2.6/arch/arm/mach-omap2/cpuidle34xx.c 2008-06-10 11:41:27.644820323 +0530 -@@ -0,0 +1,293 @@ -+/* -+ * linux/arch/arm/mach-omap2/cpuidle34xx.c -+ * -+ * OMAP3 CPU IDLE Routines -+ * -+ * Copyright (C) 2007-2008 Texas Instruments, Inc. -+ * Rajendra Nayak -+ * -+ * Copyright (C) 2007 Texas Instruments, Inc. -+ * Karthik Dasu -+ * -+ * Copyright (C) 2006 Nokia Corporation -+ * Tony Lindgren -+ * -+ * Copyright (C) 2005 Texas Instruments, Inc. -+ * Richard Woodruff -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License version 2 as -+ * published by the Free Software Foundation. -+ */ -+ -+#include -+#include -+#include -+#include -+#include -+#include -+#include "cpuidle34xx.h" -+ -+#ifdef CONFIG_CPU_IDLE -+ -+struct omap3_processor_cx omap3_power_states[OMAP3_MAX_STATES]; -+struct omap3_processor_cx current_cx_state; -+ -+static int omap3_idle_bm_check(void) -+{ -+ /* Check for omap3_fclks_active() here once available */ -+ return 0; -+} -+ -+/* omap3_enter_idle - Programs OMAP3 to enter the specified state. -+ * returns the total time during which the system was idle. -+ */ -+static int omap3_enter_idle(struct cpuidle_device *dev, -+ struct cpuidle_state *state) -+{ -+ struct omap3_processor_cx *cx = cpuidle_get_statedata(state); -+ struct timespec ts_preidle, ts_postidle, ts_idle; -+ struct powerdomain *mpu_pd, *core_pd, *per_pd, *neon_pd; -+ int neon_pwrst; -+ -+ current_cx_state = *cx; -+ -+ if (cx->type == OMAP3_STATE_C0) { -+ /* Do nothing for C0, not even a wfi */ -+ return 0; -+ } -+ -+ /* Used to keep track of the total time in idle */ -+ getnstimeofday(&ts_preidle); -+ -+ mpu_pd = pwrdm_lookup("mpu_pwrdm"); -+ core_pd = pwrdm_lookup("core_pwrdm"); -+ per_pd = pwrdm_lookup("per_pwrdm"); -+ neon_pd = pwrdm_lookup("neon_pwrdm"); -+ -+ /* Reset previous power state registers */ -+ pwrdm_clear_all_prev_pwrst(mpu_pd); -+ pwrdm_clear_all_prev_pwrst(neon_pd); -+ pwrdm_clear_all_prev_pwrst(core_pd); -+ pwrdm_clear_all_prev_pwrst(per_pd); -+ -+ if (omap_irq_pending()) -+ return 0; -+ -+ neon_pwrst = pwrdm_read_pwrst(neon_pd); -+ -+ /* Program MPU/NEON to target state */ -+ if (cx->mpu_state < PWRDM_POWER_ON) { -+ if (neon_pwrst == PWRDM_POWER_ON) { -+ if (cx->mpu_state == PWRDM_POWER_RET) -+ pwrdm_set_next_pwrst(neon_pd, PWRDM_POWER_RET); -+ else if (cx->mpu_state == PWRDM_POWER_OFF) -+ pwrdm_set_next_pwrst(neon_pd, PWRDM_POWER_OFF); -+ } -+ pwrdm_set_next_pwrst(mpu_pd, cx->mpu_state); -+ } -+ -+ /* Program CORE to target state */ -+ if (cx->core_state < PWRDM_POWER_ON) -+ pwrdm_set_next_pwrst(core_pd, cx->core_state); -+ -+ /* Execute ARM wfi */ -+ omap_sram_idle(); -+ -+ /* Program MPU/NEON to ON */ -+ if (cx->mpu_state < PWRDM_POWER_ON) { -+ if (neon_pwrst == PWRDM_POWER_ON) -+ pwrdm_set_next_pwrst(neon_pd, PWRDM_POWER_ON); -+ pwrdm_set_next_pwrst(mpu_pd, PWRDM_POWER_ON); -+ } -+ -+ if (cx->core_state < PWRDM_POWER_ON) -+ pwrdm_set_next_pwrst(core_pd, PWRDM_POWER_ON); -+ -+ getnstimeofday(&ts_postidle); -+ ts_idle = timespec_sub(ts_postidle, ts_preidle); -+ return timespec_to_ns(&ts_idle); -+} -+ -+/* -+ * omap3_enter_idle_bm - enter function for states with CPUIDLE_FLAG_CHECK_BM -+ * -+ * This function checks for all the pre-requisites needed for OMAP3 to enter -+ * CORE RET/OFF state. It then calls omap3_enter_idle to program the desired -+ * C state. -+ */ -+static int omap3_enter_idle_bm(struct cpuidle_device *dev, -+ struct cpuidle_state *state) -+{ -+ struct cpuidle_state *new_state = NULL; -+ int i, j; -+ -+ if ((state->flags & CPUIDLE_FLAG_CHECK_BM) && omap3_idle_bm_check()) { -+ -+ /* Find current state in list */ -+ for (i = 0; i < OMAP3_MAX_STATES; i++) -+ if (state == &dev->states[i]) -+ break; -+ BUG_ON(i == OMAP3_MAX_STATES); -+ -+ /* Back up to non 'CHECK_BM' state */ -+ for (j = i - 1; j > 0; j--) { -+ struct cpuidle_state *s = &dev->states[j]; -+ -+ if (!(s->flags & CPUIDLE_FLAG_CHECK_BM)) { -+ new_state = s; -+ break; -+ } -+ } -+ -+ pr_debug("%s: Bus activity: Entering %s (instead of %s)\n", -+ __FUNCTION__, new_state->name, state->name); -+ } -+ -+ return omap3_enter_idle(dev, new_state ? : state); -+} -+ -+DEFINE_PER_CPU(struct cpuidle_device, omap3_idle_dev); -+ -+/* omap3_init_power_states - Initialises the OMAP3 specific C states. -+ * Below is the desciption of each C state. -+ * -+ C0 . System executing code -+ C1 . MPU WFI + Core active -+ C2 . MPU CSWR + Core active -+ C3 . MPU OFF + Core active -+ C4 . MPU CSWR + Core CSWR -+ C5 . MPU OFF + Core CSWR -+ C6 . MPU OFF + Core OFF -+ */ -+void omap_init_power_states(void) -+{ -+ /* C0 . System executing code */ -+ omap3_power_states[0].valid = 1; -+ omap3_power_states[0].type = OMAP3_STATE_C0; -+ omap3_power_states[0].sleep_latency = 0; -+ omap3_power_states[0].wakeup_latency = 0; -+ omap3_power_states[0].threshold = 0; -+ omap3_power_states[0].mpu_state = PWRDM_POWER_ON; -+ omap3_power_states[0].core_state = PWRDM_POWER_ON; -+ omap3_power_states[0].flags = CPUIDLE_FLAG_TIME_VALID | -+ CPUIDLE_FLAG_SHALLOW; -+ -+ /* C1 . MPU WFI + Core active */ -+ omap3_power_states[1].valid = 1; -+ omap3_power_states[1].type = OMAP3_STATE_C1; -+ omap3_power_states[1].sleep_latency = 10; -+ omap3_power_states[1].wakeup_latency = 10; -+ omap3_power_states[1].threshold = 30; -+ omap3_power_states[1].mpu_state = PWRDM_POWER_ON; -+ omap3_power_states[1].core_state = PWRDM_POWER_ON; -+ omap3_power_states[1].flags = CPUIDLE_FLAG_TIME_VALID | -+ CPUIDLE_FLAG_SHALLOW; -+ -+ /* C2 . MPU CSWR + Core active */ -+ omap3_power_states[2].valid = 1; -+ omap3_power_states[2].type = OMAP3_STATE_C2; -+ omap3_power_states[2].sleep_latency = 50; -+ omap3_power_states[2].wakeup_latency = 50; -+ omap3_power_states[2].threshold = 300; -+ omap3_power_states[2].mpu_state = PWRDM_POWER_RET; -+ omap3_power_states[2].core_state = PWRDM_POWER_ON; -+ omap3_power_states[2].flags = CPUIDLE_FLAG_TIME_VALID | -+ CPUIDLE_FLAG_BALANCED; -+ -+ /* C3 . MPU OFF + Core active */ -+ omap3_power_states[3].valid = 0; -+ omap3_power_states[3].type = OMAP3_STATE_C3; -+ omap3_power_states[3].sleep_latency = 1500; -+ omap3_power_states[3].wakeup_latency = 1800; -+ omap3_power_states[3].threshold = 4000; -+ omap3_power_states[3].mpu_state = PWRDM_POWER_OFF; -+ omap3_power_states[3].core_state = PWRDM_POWER_RET; -+ omap3_power_states[3].flags = CPUIDLE_FLAG_TIME_VALID | -+ CPUIDLE_FLAG_BALANCED; -+ -+ /* C4 . MPU CSWR + Core CSWR*/ -+ omap3_power_states[4].valid = 1; -+ omap3_power_states[4].type = OMAP3_STATE_C4; -+ omap3_power_states[4].sleep_latency = 2500; -+ omap3_power_states[4].wakeup_latency = 7500; -+ omap3_power_states[4].threshold = 12000; -+ omap3_power_states[4].mpu_state = PWRDM_POWER_RET; -+ omap3_power_states[4].core_state = PWRDM_POWER_RET; -+ omap3_power_states[4].flags = CPUIDLE_FLAG_TIME_VALID | -+ CPUIDLE_FLAG_BALANCED | CPUIDLE_FLAG_CHECK_BM; -+ -+ /* C5 . MPU OFF + Core CSWR */ -+ omap3_power_states[5].valid = 0; -+ omap3_power_states[5].type = OMAP3_STATE_C5; -+ omap3_power_states[5].sleep_latency = 3000; -+ omap3_power_states[5].wakeup_latency = 8500; -+ omap3_power_states[5].threshold = 15000; -+ omap3_power_states[5].mpu_state = PWRDM_POWER_OFF; -+ omap3_power_states[5].core_state = PWRDM_POWER_RET; -+ omap3_power_states[5].flags = CPUIDLE_FLAG_TIME_VALID | -+ CPUIDLE_FLAG_BALANCED | CPUIDLE_FLAG_CHECK_BM; -+ -+ /* C6 . MPU OFF + Core OFF */ -+ omap3_power_states[6].valid = 0; -+ omap3_power_states[6].type = OMAP3_STATE_C6; -+ omap3_power_states[6].sleep_latency = 10000; -+ omap3_power_states[6].wakeup_latency = 30000; -+ omap3_power_states[6].threshold = 300000; -+ omap3_power_states[6].mpu_state = PWRDM_POWER_OFF; -+ omap3_power_states[6].core_state = PWRDM_POWER_OFF; -+ omap3_power_states[6].flags = CPUIDLE_FLAG_TIME_VALID | -+ CPUIDLE_FLAG_DEEP | CPUIDLE_FLAG_CHECK_BM; -+} -+ -+struct cpuidle_driver omap3_idle_driver = { -+ .name = "omap3_idle", -+ .owner = THIS_MODULE, -+}; -+/* -+ * omap3_idle_init - Init routine for OMAP3 idle. -+ * Registers the OMAP3 specific cpuidle driver with the cpuidle f/w -+ * with the valid set of states. -+ */ -+int omap3_idle_init(void) -+{ -+ int i, count = 0; -+ struct omap3_processor_cx *cx; -+ struct cpuidle_state *state; -+ struct cpuidle_device *dev; -+ -+ omap_init_power_states(); -+ cpuidle_register_driver(&omap3_idle_driver); -+ -+ dev = &per_cpu(omap3_idle_dev, smp_processor_id()); -+ -+ for (i = 0; i < OMAP3_MAX_STATES; i++) { -+ cx = &omap3_power_states[i]; -+ state = &dev->states[count]; -+ -+ if (!cx->valid) -+ continue; -+ cpuidle_set_statedata(state, cx); -+ state->exit_latency = cx->sleep_latency + cx->wakeup_latency; -+ state->target_residency = cx->threshold; -+ state->flags = cx->flags; -+ state->enter = (state->flags & CPUIDLE_FLAG_CHECK_BM) ? -+ omap3_enter_idle_bm : omap3_enter_idle; -+ sprintf(state->name, "C%d", count+1); -+ count++; -+ } -+ -+ if (!count) -+ return -EINVAL; -+ dev->state_count = count; -+ -+ if (cpuidle_register_device(dev)) { -+ printk(KERN_ERR "%s: CPUidle register device failed\n", -+ __FUNCTION__); -+ return -EIO; -+ } -+ -+ return 0; -+} -+__initcall(omap3_idle_init); -+#endif /* CONFIG_CPU_IDLE */ -Index: linux-omap-2.6/arch/arm/mach-omap2/cpuidle34xx.h -=================================================================== ---- /dev/null 1970-01-01 00:00:00.000000000 +0000 -+++ linux-omap-2.6/arch/arm/mach-omap2/cpuidle34xx.h 2008-06-09 20:15:39.569121361 +0530 -@@ -0,0 +1,51 @@ -+/* -+ * linux/arch/arm/mach-omap2/cpuidle34xx.h -+ * -+ * OMAP3 cpuidle structure definitions -+ * -+ * Copyright (C) 2007-2008 Texas Instruments, Inc. -+ * Written by Rajendra Nayak -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License version 2 as -+ * published by the Free Software Foundation. -+ * -+ * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR -+ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED -+ * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. -+ * -+ * History: -+ * -+ */ -+ -+#ifndef ARCH_ARM_MACH_OMAP2_CPUIDLE_34XX -+#define ARCH_ARM_MACH_OMAP2_CPUIDLE_34XX -+ -+#define OMAP3_MAX_STATES 7 -+#define OMAP3_STATE_C0 0 /* C0 - System executing code */ -+#define OMAP3_STATE_C1 1 /* C1 - MPU WFI + Core active */ -+#define OMAP3_STATE_C2 2 /* C2 - MPU CSWR + Core active */ -+#define OMAP3_STATE_C3 3 /* C3 - MPU OFF + Core active */ -+#define OMAP3_STATE_C4 4 /* C4 - MPU RET + Core RET */ -+#define OMAP3_STATE_C5 5 /* C5 - MPU OFF + Core RET */ -+#define OMAP3_STATE_C6 6 /* C6 - MPU OFF + Core OFF */ -+ -+extern void omap_sram_idle(void); -+extern int omap3_irq_pending(void); -+ -+struct omap3_processor_cx { -+ u8 valid; -+ u8 type; -+ u32 sleep_latency; -+ u32 wakeup_latency; -+ u32 mpu_state; -+ u32 core_state; -+ u32 threshold; -+ u32 flags; -+}; -+ -+void omap_init_power_states(void); -+int omap3_idle_init(void); -+ -+#endif /* ARCH_ARM_MACH_OMAP2_CPUIDLE_34XX */ -+ -Index: linux-omap-2.6/arch/arm/mach-omap2/pm34xx.c -=================================================================== ---- linux-omap-2.6.orig/arch/arm/mach-omap2/pm34xx.c 2008-06-09 20:15:33.855303920 +0530 -+++ linux-omap-2.6/arch/arm/mach-omap2/pm34xx.c 2008-06-09 20:16:20.976798343 +0530 -@@ -141,7 +141,7 @@ static irqreturn_t prcm_interrupt_handle - return IRQ_HANDLED; - } - --static void omap_sram_idle(void) -+void omap_sram_idle(void) - { - /* Variable to tell what needs to be saved and restored - * in omap_sram_idle*/ -@@ -156,6 +156,7 @@ static void omap_sram_idle(void) - - mpu_next_state = pwrdm_read_next_pwrst(mpu_pwrdm); - switch (mpu_next_state) { -+ case PWRDM_POWER_ON: - case PWRDM_POWER_RET: - /* No need to save context */ - save_state = 0; -@@ -386,7 +387,9 @@ int __init omap3_pm_init(void) - - prcm_setup_regs(); - -+#ifndef CONFIG_CPU_IDLE - pm_idle = omap3_pm_idle; -+#endif - - err1: - return ret; -Index: linux-omap-2.6/drivers/cpuidle/cpuidle.c -=================================================================== ---- linux-omap-2.6.orig/drivers/cpuidle/cpuidle.c 2008-06-09 20:15:33.856303888 +0530 -+++ linux-omap-2.6/drivers/cpuidle/cpuidle.c 2008-06-09 20:15:39.570121329 +0530 -@@ -58,6 +58,11 @@ static void cpuidle_idle_call(void) - return; - } - -+#ifdef CONFIG_ARCH_OMAP3 -+ local_irq_disable(); -+ local_fiq_disable(); -+#endif -+ - /* ask the governor for the next state */ - next_state = cpuidle_curr_governor->select(dev); - if (need_resched()) -@@ -70,6 +75,11 @@ static void cpuidle_idle_call(void) - target_state->time += (unsigned long long)dev->last_residency; - target_state->usage++; - -+#ifdef CONFIG_ARCH_OMAP3 -+ local_irq_enable(); -+ local_fiq_enable(); -+#endif -+ - /* give the governor an opportunity to reflect on the outcome */ - if (cpuidle_curr_governor->reflect) - cpuidle_curr_governor->reflect(dev); - --- -To unsubscribe from this list: send the line "unsubscribe linux-omap" in -the body of a message to majordomo@vger.kernel.org -More majordomo info at http://vger.kernel.org/majordomo-info.html - +From: "Rajendra Nayak" +To: +Subject: [PATCH 01/02] OMAP3 CPUidle driver +Date: Tue, 10 Jun 2008 12:39:00 +0530 + +This patch adds the OMAP3 cpuidle driver. Irq enable/disable is done in the core cpuidle driver +before it queries the governor for the next state. + +Signed-off-by: Rajendra Nayak + +--- + arch/arm/mach-omap2/Makefile | 2 + arch/arm/mach-omap2/cpuidle34xx.c | 293 ++++++++++++++++++++++++++++++++++++++ + arch/arm/mach-omap2/cpuidle34xx.h | 51 ++++++ + arch/arm/mach-omap2/pm34xx.c | 5 + drivers/cpuidle/cpuidle.c | 10 + + 5 files changed, 359 insertions(+), 2 deletions(-) + +Index: linux-omap-2.6/arch/arm/mach-omap2/Makefile +=================================================================== +--- linux-omap-2.6.orig/arch/arm/mach-omap2/Makefile 2008-06-09 20:15:33.855303920 +0530 ++++ linux-omap-2.6/arch/arm/mach-omap2/Makefile 2008-06-09 20:15:39.569121361 +0530 +@@ -20,7 +20,7 @@ obj-y += pm.o + obj-$(CONFIG_ARCH_OMAP2) += pm24xx.o + obj-$(CONFIG_ARCH_OMAP2420) += sleep242x.o + obj-$(CONFIG_ARCH_OMAP2430) += sleep243x.o +-obj-$(CONFIG_ARCH_OMAP3) += pm34xx.o sleep34xx.o ++obj-$(CONFIG_ARCH_OMAP3) += pm34xx.o sleep34xx.o cpuidle34xx.o + obj-$(CONFIG_PM_DEBUG) += pm-debug.o + endif + +Index: linux-omap-2.6/arch/arm/mach-omap2/cpuidle34xx.c +=================================================================== +--- /dev/null 1970-01-01 00:00:00.000000000 +0000 ++++ linux-omap-2.6/arch/arm/mach-omap2/cpuidle34xx.c 2008-06-10 11:41:27.644820323 +0530 +@@ -0,0 +1,293 @@ ++/* ++ * linux/arch/arm/mach-omap2/cpuidle34xx.c ++ * ++ * OMAP3 CPU IDLE Routines ++ * ++ * Copyright (C) 2007-2008 Texas Instruments, Inc. ++ * Rajendra Nayak ++ * ++ * Copyright (C) 2007 Texas Instruments, Inc. ++ * Karthik Dasu ++ * ++ * Copyright (C) 2006 Nokia Corporation ++ * Tony Lindgren ++ * ++ * Copyright (C) 2005 Texas Instruments, Inc. ++ * Richard Woodruff ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++ ++#include ++#include ++#include ++#include ++#include ++#include ++#include "cpuidle34xx.h" ++ ++#ifdef CONFIG_CPU_IDLE ++ ++struct omap3_processor_cx omap3_power_states[OMAP3_MAX_STATES]; ++struct omap3_processor_cx current_cx_state; ++ ++static int omap3_idle_bm_check(void) ++{ ++ /* Check for omap3_fclks_active() here once available */ ++ return 0; ++} ++ ++/* omap3_enter_idle - Programs OMAP3 to enter the specified state. ++ * returns the total time during which the system was idle. ++ */ ++static int omap3_enter_idle(struct cpuidle_device *dev, ++ struct cpuidle_state *state) ++{ ++ struct omap3_processor_cx *cx = cpuidle_get_statedata(state); ++ struct timespec ts_preidle, ts_postidle, ts_idle; ++ struct powerdomain *mpu_pd, *core_pd, *per_pd, *neon_pd; ++ int neon_pwrst; ++ ++ current_cx_state = *cx; ++ ++ if (cx->type == OMAP3_STATE_C0) { ++ /* Do nothing for C0, not even a wfi */ ++ return 0; ++ } ++ ++ /* Used to keep track of the total time in idle */ ++ getnstimeofday(&ts_preidle); ++ ++ mpu_pd = pwrdm_lookup("mpu_pwrdm"); ++ core_pd = pwrdm_lookup("core_pwrdm"); ++ per_pd = pwrdm_lookup("per_pwrdm"); ++ neon_pd = pwrdm_lookup("neon_pwrdm"); ++ ++ /* Reset previous power state registers */ ++ pwrdm_clear_all_prev_pwrst(mpu_pd); ++ pwrdm_clear_all_prev_pwrst(neon_pd); ++ pwrdm_clear_all_prev_pwrst(core_pd); ++ pwrdm_clear_all_prev_pwrst(per_pd); ++ ++ if (omap_irq_pending()) ++ return 0; ++ ++ neon_pwrst = pwrdm_read_pwrst(neon_pd); ++ ++ /* Program MPU/NEON to target state */ ++ if (cx->mpu_state < PWRDM_POWER_ON) { ++ if (neon_pwrst == PWRDM_POWER_ON) { ++ if (cx->mpu_state == PWRDM_POWER_RET) ++ pwrdm_set_next_pwrst(neon_pd, PWRDM_POWER_RET); ++ else if (cx->mpu_state == PWRDM_POWER_OFF) ++ pwrdm_set_next_pwrst(neon_pd, PWRDM_POWER_OFF); ++ } ++ pwrdm_set_next_pwrst(mpu_pd, cx->mpu_state); ++ } ++ ++ /* Program CORE to target state */ ++ if (cx->core_state < PWRDM_POWER_ON) ++ pwrdm_set_next_pwrst(core_pd, cx->core_state); ++ ++ /* Execute ARM wfi */ ++ omap_sram_idle(); ++ ++ /* Program MPU/NEON to ON */ ++ if (cx->mpu_state < PWRDM_POWER_ON) { ++ if (neon_pwrst == PWRDM_POWER_ON) ++ pwrdm_set_next_pwrst(neon_pd, PWRDM_POWER_ON); ++ pwrdm_set_next_pwrst(mpu_pd, PWRDM_POWER_ON); ++ } ++ ++ if (cx->core_state < PWRDM_POWER_ON) ++ pwrdm_set_next_pwrst(core_pd, PWRDM_POWER_ON); ++ ++ getnstimeofday(&ts_postidle); ++ ts_idle = timespec_sub(ts_postidle, ts_preidle); ++ return timespec_to_ns(&ts_idle); ++} ++ ++/* ++ * omap3_enter_idle_bm - enter function for states with CPUIDLE_FLAG_CHECK_BM ++ * ++ * This function checks for all the pre-requisites needed for OMAP3 to enter ++ * CORE RET/OFF state. It then calls omap3_enter_idle to program the desired ++ * C state. ++ */ ++static int omap3_enter_idle_bm(struct cpuidle_device *dev, ++ struct cpuidle_state *state) ++{ ++ struct cpuidle_state *new_state = NULL; ++ int i, j; ++ ++ if ((state->flags & CPUIDLE_FLAG_CHECK_BM) && omap3_idle_bm_check()) { ++ ++ /* Find current state in list */ ++ for (i = 0; i < OMAP3_MAX_STATES; i++) ++ if (state == &dev->states[i]) ++ break; ++ BUG_ON(i == OMAP3_MAX_STATES); ++ ++ /* Back up to non 'CHECK_BM' state */ ++ for (j = i - 1; j > 0; j--) { ++ struct cpuidle_state *s = &dev->states[j]; ++ ++ if (!(s->flags & CPUIDLE_FLAG_CHECK_BM)) { ++ new_state = s; ++ break; ++ } ++ } ++ ++ pr_debug("%s: Bus activity: Entering %s (instead of %s)\n", ++ __FUNCTION__, new_state->name, state->name); ++ } ++ ++ return omap3_enter_idle(dev, new_state ? : state); ++} ++ ++DEFINE_PER_CPU(struct cpuidle_device, omap3_idle_dev); ++ ++/* omap3_init_power_states - Initialises the OMAP3 specific C states. ++ * Below is the desciption of each C state. ++ * ++ C0 . System executing code ++ C1 . MPU WFI + Core active ++ C2 . MPU CSWR + Core active ++ C3 . MPU OFF + Core active ++ C4 . MPU CSWR + Core CSWR ++ C5 . MPU OFF + Core CSWR ++ C6 . MPU OFF + Core OFF ++ */ ++void omap_init_power_states(void) ++{ ++ /* C0 . System executing code */ ++ omap3_power_states[0].valid = 1; ++ omap3_power_states[0].type = OMAP3_STATE_C0; ++ omap3_power_states[0].sleep_latency = 0; ++ omap3_power_states[0].wakeup_latency = 0; ++ omap3_power_states[0].threshold = 0; ++ omap3_power_states[0].mpu_state = PWRDM_POWER_ON; ++ omap3_power_states[0].core_state = PWRDM_POWER_ON; ++ omap3_power_states[0].flags = CPUIDLE_FLAG_TIME_VALID | ++ CPUIDLE_FLAG_SHALLOW; ++ ++ /* C1 . MPU WFI + Core active */ ++ omap3_power_states[1].valid = 1; ++ omap3_power_states[1].type = OMAP3_STATE_C1; ++ omap3_power_states[1].sleep_latency = 10; ++ omap3_power_states[1].wakeup_latency = 10; ++ omap3_power_states[1].threshold = 30; ++ omap3_power_states[1].mpu_state = PWRDM_POWER_ON; ++ omap3_power_states[1].core_state = PWRDM_POWER_ON; ++ omap3_power_states[1].flags = CPUIDLE_FLAG_TIME_VALID | ++ CPUIDLE_FLAG_SHALLOW; ++ ++ /* C2 . MPU CSWR + Core active */ ++ omap3_power_states[2].valid = 1; ++ omap3_power_states[2].type = OMAP3_STATE_C2; ++ omap3_power_states[2].sleep_latency = 50; ++ omap3_power_states[2].wakeup_latency = 50; ++ omap3_power_states[2].threshold = 300; ++ omap3_power_states[2].mpu_state = PWRDM_POWER_RET; ++ omap3_power_states[2].core_state = PWRDM_POWER_ON; ++ omap3_power_states[2].flags = CPUIDLE_FLAG_TIME_VALID | ++ CPUIDLE_FLAG_BALANCED; ++ ++ /* C3 . MPU OFF + Core active */ ++ omap3_power_states[3].valid = 0; ++ omap3_power_states[3].type = OMAP3_STATE_C3; ++ omap3_power_states[3].sleep_latency = 1500; ++ omap3_power_states[3].wakeup_latency = 1800; ++ omap3_power_states[3].threshold = 4000; ++ omap3_power_states[3].mpu_state = PWRDM_POWER_OFF; ++ omap3_power_states[3].core_state = PWRDM_POWER_RET; ++ omap3_power_states[3].flags = CPUIDLE_FLAG_TIME_VALID | ++ CPUIDLE_FLAG_BALANCED; ++ ++ /* C4 . MPU CSWR + Core CSWR*/ ++ omap3_power_states[4].valid = 1; ++ omap3_power_states[4].type = OMAP3_STATE_C4; ++ omap3_power_states[4].sleep_latency = 2500; ++ omap3_power_states[4].wakeup_latency = 7500; ++ omap3_power_states[4].threshold = 12000; ++ omap3_power_states[4].mpu_state = PWRDM_POWER_RET; ++ omap3_power_states[4].core_state = PWRDM_POWER_RET; ++ omap3_power_states[4].flags = CPUIDLE_FLAG_TIME_VALID | ++ CPUIDLE_FLAG_BALANCED | CPUIDLE_FLAG_CHECK_BM; ++ ++ /* C5 . MPU OFF + Core CSWR */ ++ omap3_power_states[5].valid = 0; ++ omap3_power_states[5].type = OMAP3_STATE_C5; ++ omap3_power_states[5].sleep_latency = 3000; ++ omap3_power_states[5].wakeup_latency = 8500; ++ omap3_power_states[5].threshold = 15000; ++ omap3_power_states[5].mpu_state = PWRDM_POWER_OFF; ++ omap3_power_states[5].core_state = PWRDM_POWER_RET; ++ omap3_power_states[5].flags = CPUIDLE_FLAG_TIME_VALID | ++ CPUIDLE_FLAG_BALANCED | CPUIDLE_FLAG_CHECK_BM; ++ ++ /* C6 . MPU OFF + Core OFF */ ++ omap3_power_states[6].valid = 0; ++ omap3_power_states[6].type = OMAP3_STATE_C6; ++ omap3_power_states[6].sleep_latency = 10000; ++ omap3_power_states[6].wakeup_latency = 30000; ++ omap3_power_states[6].threshold = 300000; ++ omap3_power_states[6].mpu_state = PWRDM_POWER_OFF; ++ omap3_power_states[6].core_state = PWRDM_POWER_OFF; ++ omap3_power_states[6].flags = CPUIDLE_FLAG_TIME_VALID | ++ CPUIDLE_FLAG_DEEP | CPUIDLE_FLAG_CHECK_BM; ++} ++ ++struct cpuidle_driver omap3_idle_driver = { ++ .name = "omap3_idle", ++ .owner = THIS_MODULE, ++}; ++/* ++ * omap3_idle_init - Init routine for OMAP3 idle. ++ * Registers the OMAP3 specific cpuidle driver with the cpuidle f/w ++ * with the valid set of states. ++ */ ++int omap3_idle_init(void) ++{ ++ int i, count = 0; ++ struct omap3_processor_cx *cx; ++ struct cpuidle_state *state; ++ struct cpuidle_device *dev; ++ ++ omap_init_power_states(); ++ cpuidle_register_driver(&omap3_idle_driver); ++ ++ dev = &per_cpu(omap3_idle_dev, smp_processor_id()); ++ ++ for (i = 0; i < OMAP3_MAX_STATES; i++) { ++ cx = &omap3_power_states[i]; ++ state = &dev->states[count]; ++ ++ if (!cx->valid) ++ continue; ++ cpuidle_set_statedata(state, cx); ++ state->exit_latency = cx->sleep_latency + cx->wakeup_latency; ++ state->target_residency = cx->threshold; ++ state->flags = cx->flags; ++ state->enter = (state->flags & CPUIDLE_FLAG_CHECK_BM) ? ++ omap3_enter_idle_bm : omap3_enter_idle; ++ sprintf(state->name, "C%d", count+1); ++ count++; ++ } ++ ++ if (!count) ++ return -EINVAL; ++ dev->state_count = count; ++ ++ if (cpuidle_register_device(dev)) { ++ printk(KERN_ERR "%s: CPUidle register device failed\n", ++ __FUNCTION__); ++ return -EIO; ++ } ++ ++ return 0; ++} ++__initcall(omap3_idle_init); ++#endif /* CONFIG_CPU_IDLE */ +Index: linux-omap-2.6/arch/arm/mach-omap2/cpuidle34xx.h +=================================================================== +--- /dev/null 1970-01-01 00:00:00.000000000 +0000 ++++ linux-omap-2.6/arch/arm/mach-omap2/cpuidle34xx.h 2008-06-09 20:15:39.569121361 +0530 +@@ -0,0 +1,51 @@ ++/* ++ * linux/arch/arm/mach-omap2/cpuidle34xx.h ++ * ++ * OMAP3 cpuidle structure definitions ++ * ++ * Copyright (C) 2007-2008 Texas Instruments, Inc. ++ * Written by Rajendra Nayak ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ * ++ * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR ++ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED ++ * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. ++ * ++ * History: ++ * ++ */ ++ ++#ifndef ARCH_ARM_MACH_OMAP2_CPUIDLE_34XX ++#define ARCH_ARM_MACH_OMAP2_CPUIDLE_34XX ++ ++#define OMAP3_MAX_STATES 7 ++#define OMAP3_STATE_C0 0 /* C0 - System executing code */ ++#define OMAP3_STATE_C1 1 /* C1 - MPU WFI + Core active */ ++#define OMAP3_STATE_C2 2 /* C2 - MPU CSWR + Core active */ ++#define OMAP3_STATE_C3 3 /* C3 - MPU OFF + Core active */ ++#define OMAP3_STATE_C4 4 /* C4 - MPU RET + Core RET */ ++#define OMAP3_STATE_C5 5 /* C5 - MPU OFF + Core RET */ ++#define OMAP3_STATE_C6 6 /* C6 - MPU OFF + Core OFF */ ++ ++extern void omap_sram_idle(void); ++extern int omap3_irq_pending(void); ++ ++struct omap3_processor_cx { ++ u8 valid; ++ u8 type; ++ u32 sleep_latency; ++ u32 wakeup_latency; ++ u32 mpu_state; ++ u32 core_state; ++ u32 threshold; ++ u32 flags; ++}; ++ ++void omap_init_power_states(void); ++int omap3_idle_init(void); ++ ++#endif /* ARCH_ARM_MACH_OMAP2_CPUIDLE_34XX */ ++ +Index: linux-omap-2.6/arch/arm/mach-omap2/pm34xx.c +=================================================================== +--- linux-omap-2.6.orig/arch/arm/mach-omap2/pm34xx.c 2008-06-09 20:15:33.855303920 +0530 ++++ linux-omap-2.6/arch/arm/mach-omap2/pm34xx.c 2008-06-09 20:16:20.976798343 +0530 +@@ -141,7 +141,7 @@ static irqreturn_t prcm_interrupt_handle + return IRQ_HANDLED; + } + +-static void omap_sram_idle(void) ++void omap_sram_idle(void) + { + /* Variable to tell what needs to be saved and restored + * in omap_sram_idle*/ +@@ -156,6 +156,7 @@ static void omap_sram_idle(void) + + mpu_next_state = pwrdm_read_next_pwrst(mpu_pwrdm); + switch (mpu_next_state) { ++ case PWRDM_POWER_ON: + case PWRDM_POWER_RET: + /* No need to save context */ + save_state = 0; +@@ -386,7 +387,9 @@ int __init omap3_pm_init(void) + + prcm_setup_regs(); + ++#ifndef CONFIG_CPU_IDLE + pm_idle = omap3_pm_idle; ++#endif + + err1: + return ret; +Index: linux-omap-2.6/drivers/cpuidle/cpuidle.c +=================================================================== +--- linux-omap-2.6.orig/drivers/cpuidle/cpuidle.c 2008-06-09 20:15:33.856303888 +0530 ++++ linux-omap-2.6/drivers/cpuidle/cpuidle.c 2008-06-09 20:15:39.570121329 +0530 +@@ -58,6 +58,11 @@ static void cpuidle_idle_call(void) + return; + } + ++#ifdef CONFIG_ARCH_OMAP3 ++ local_irq_disable(); ++ local_fiq_disable(); ++#endif ++ + /* ask the governor for the next state */ + next_state = cpuidle_curr_governor->select(dev); + if (need_resched()) +@@ -70,6 +75,11 @@ static void cpuidle_idle_call(void) + target_state->time += (unsigned long long)dev->last_residency; + target_state->usage++; + ++#ifdef CONFIG_ARCH_OMAP3 ++ local_irq_enable(); ++ local_fiq_enable(); ++#endif ++ + /* give the governor an opportunity to reflect on the outcome */ + if (cpuidle_curr_governor->reflect) + cpuidle_curr_governor->reflect(dev); + +-- +To unsubscribe from this list: send the line "unsubscribe linux-omap" in +the body of a message to majordomo@vger.kernel.org +More majordomo info at http://vger.kernel.org/majordomo-info.html + diff --git a/packages/linux/linux-omap2-git/beagleboard/0002-omap3-cpuidle.patch b/packages/linux/linux-omap2-git/beagleboard/0002-omap3-cpuidle.patch index c17c690fe1..d35fd47567 100644 --- a/packages/linux/linux-omap2-git/beagleboard/0002-omap3-cpuidle.patch +++ b/packages/linux/linux-omap2-git/beagleboard/0002-omap3-cpuidle.patch @@ -1,88 +1,88 @@ -From: "Rajendra Nayak" -To: -Subject: [PATCH 02/02] Kconfig changes -Date: Tue, 10 Jun 2008 12:39:02 +0530 - -Updates the CPUidle Kconfig - -Signed-off-by: Rajendra Nayak - ---- - arch/arm/Kconfig | 10 ++++++++++ - drivers/cpuidle/Kconfig | 28 ++++++++++++++++++++++------ - 2 files changed, 32 insertions(+), 6 deletions(-) - -Index: linux-omap-2.6/arch/arm/Kconfig -=================================================================== ---- linux-omap-2.6.orig/arch/arm/Kconfig 2008-06-10 11:43:10.790502713 +0530 -+++ linux-omap-2.6/arch/arm/Kconfig 2008-06-10 11:43:38.701604549 +0530 -@@ -954,6 +954,16 @@ config ATAGS_PROC - - endmenu - -+if (ARCH_OMAP) -+ -+menu "CPUIdle" -+ -+source "drivers/cpuidle/Kconfig" -+ -+endmenu -+ -+endif -+ - if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP || ARCH_IMX || ARCH_PXA) - - menu "CPU Frequency scaling" -Index: linux-omap-2.6/drivers/cpuidle/Kconfig -=================================================================== ---- linux-omap-2.6.orig/drivers/cpuidle/Kconfig 2008-06-10 11:43:10.790502713 +0530 -+++ linux-omap-2.6/drivers/cpuidle/Kconfig 2008-06-10 12:06:36.139332151 +0530 -@@ -1,20 +1,36 @@ -+menu "CPU idle PM support" - - config CPU_IDLE - bool "CPU idle PM support" -- default ACPI -+ default n - help - CPU idle is a generic framework for supporting software-controlled - idle processor power management. It includes modular cross-platform - governors that can be swapped during runtime. - -- If you're using an ACPI-enabled platform, you should say Y here. -+ If you're using a mobile platform that supports CPU idle PM (e.g. -+ an ACPI-capable notebook), you should say Y here. -+ -+if CPU_IDLE -+ -+comment "Governors" - - config CPU_IDLE_GOV_LADDER -- bool -+ bool "ladder" - depends on CPU_IDLE -- default y -+ default n - - config CPU_IDLE_GOV_MENU -- bool -+ bool "menu" - depends on CPU_IDLE && NO_HZ -- default y -+ default n -+ help -+ This cpuidle governor evaluates all available states and chooses the -+ deepest state that meets all of the following constraints: BM activity, -+ expected time until next timer interrupt, and last break event time -+ delta. It is designed to minimize power consumption. Currently -+ dynticks is required. -+ -+endif # CPU_IDLE -+ -+endmenu - --- -To unsubscribe from this list: send the line "unsubscribe linux-omap" in -the body of a message to majordomo@vger.kernel.org -More majordomo info at http://vger.kernel.org/majordomo-info.html - +From: "Rajendra Nayak" +To: +Subject: [PATCH 02/02] Kconfig changes +Date: Tue, 10 Jun 2008 12:39:02 +0530 + +Updates the CPUidle Kconfig + +Signed-off-by: Rajendra Nayak + +--- + arch/arm/Kconfig | 10 ++++++++++ + drivers/cpuidle/Kconfig | 28 ++++++++++++++++++++++------ + 2 files changed, 32 insertions(+), 6 deletions(-) + +Index: linux-omap-2.6/arch/arm/Kconfig +=================================================================== +--- linux-omap-2.6.orig/arch/arm/Kconfig 2008-06-10 11:43:10.790502713 +0530 ++++ linux-omap-2.6/arch/arm/Kconfig 2008-06-10 11:43:38.701604549 +0530 +@@ -954,6 +954,16 @@ config ATAGS_PROC + + endmenu + ++if (ARCH_OMAP) ++ ++menu "CPUIdle" ++ ++source "drivers/cpuidle/Kconfig" ++ ++endmenu ++ ++endif ++ + if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP || ARCH_IMX || ARCH_PXA) + + menu "CPU Frequency scaling" +Index: linux-omap-2.6/drivers/cpuidle/Kconfig +=================================================================== +--- linux-omap-2.6.orig/drivers/cpuidle/Kconfig 2008-06-10 11:43:10.790502713 +0530 ++++ linux-omap-2.6/drivers/cpuidle/Kconfig 2008-06-10 12:06:36.139332151 +0530 +@@ -1,20 +1,36 @@ ++menu "CPU idle PM support" + + config CPU_IDLE + bool "CPU idle PM support" +- default ACPI ++ default n + help + CPU idle is a generic framework for supporting software-controlled + idle processor power management. It includes modular cross-platform + governors that can be swapped during runtime. + +- If you're using an ACPI-enabled platform, you should say Y here. ++ If you're using a mobile platform that supports CPU idle PM (e.g. ++ an ACPI-capable notebook), you should say Y here. ++ ++if CPU_IDLE ++ ++comment "Governors" + + config CPU_IDLE_GOV_LADDER +- bool ++ bool "ladder" + depends on CPU_IDLE +- default y ++ default n + + config CPU_IDLE_GOV_MENU +- bool ++ bool "menu" + depends on CPU_IDLE && NO_HZ +- default y ++ default n ++ help ++ This cpuidle governor evaluates all available states and chooses the ++ deepest state that meets all of the following constraints: BM activity, ++ expected time until next timer interrupt, and last break event time ++ delta. It is designed to minimize power consumption. Currently ++ dynticks is required. ++ ++endif # CPU_IDLE ++ ++endmenu + +-- +To unsubscribe from this list: send the line "unsubscribe linux-omap" in +the body of a message to majordomo@vger.kernel.org +More majordomo info at http://vger.kernel.org/majordomo-info.html + diff --git a/packages/linux/linux-omap2-git/beagleboard/fix-dispc-clocks.patch b/packages/linux/linux-omap2-git/beagleboard/fix-dispc-clocks.patch index aade27fd8a..0b9e3441b6 100644 --- a/packages/linux/linux-omap2-git/beagleboard/fix-dispc-clocks.patch +++ b/packages/linux/linux-omap2-git/beagleboard/fix-dispc-clocks.patch @@ -1,147 +1,147 @@ -From linux-omap-owner@vger.kernel.org Sun Jun 22 10:11:39 2008 -Received: from localhost - ([127.0.0.1] helo=dominion ident=koen) - by dominion.dominion.void with esmtp (Exim 4.63) - (envelope-from ) - id 1KAKfj-0008Qc-FC - for koen@localhost; Sun, 22 Jun 2008 10:11:39 +0200 -Received: from xs.service.utwente.nl [130.89.5.250] - by dominion with POP3 (fetchmail-6.3.6) - for (single-drop); Sun, 22 Jun 2008 10:11:39 +0200 (CEST) -Received: from mail.service.utwente.nl ([130.89.5.253]) by exchange.service.utwente.nl with Microsoft SMTPSVC(6.0.3790.3959); - Sat, 21 Jun 2008 19:06:02 +0200 -Received: from smtp.utwente.nl ([130.89.2.9]) by mail.service.utwente.nl with Microsoft SMTPSVC(6.0.3790.3959); - Sat, 21 Jun 2008 19:06:01 +0200 -Received: from vger.kernel.org (vger.kernel.org [209.132.176.167]) - by smtp.utwente.nl (8.12.10/SuSE Linux 0.7) with ESMTP id m5LH5TSm026212 - for ; Sat, 21 Jun 2008 19:05:30 +0200 -Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand - id S1753396AbYFURFN (ORCPT ); - Sat, 21 Jun 2008 13:05:13 -0400 -Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753305AbYFURFN - (ORCPT ); - Sat, 21 Jun 2008 13:05:13 -0400 -Received: from utopia.booyaka.com ([72.9.107.138]:41675 "EHLO - utopia.booyaka.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org - with ESMTP id S1753145AbYFURFL (ORCPT - ); Sat, 21 Jun 2008 13:05:11 -0400 -Received: (qmail 20532 invoked by uid 526); 21 Jun 2008 17:05:10 -0000 -Date: Sat, 21 Jun 2008 11:05:10 -0600 (MDT) -From: Paul Walmsley -To: "Gadiyar, Anand" , - "linux-omap@vger.kernel.org" -cc: Dirk Behme , - "jouni.hogander@nokia.com" -Subject: [PATCH] OMAP3 clock: fix omap2_clk_wait_ready for OMAP3430ES2 DSS -In-Reply-To: <5A47E75E594F054BAF48C5E4FC4B92AB022BB66209@dbde02.ent.ti.com> -Message-ID: -References: <5A47E75E594F054BAF48C5E4FC4B92AB022BE46296@dbde02.ent.ti.com>,<485CA347.909@googlemail.com> <5A47E75E594F054BAF48C5E4FC4B92AB022BB66209@dbde02.ent.ti.com> -User-Agent: Alpine 1.00 (DEB 882 2007-12-20) -MIME-Version: 1.0 -Content-Type: TEXT/PLAIN; charset=US-ASCII -Sender: linux-omap-owner@vger.kernel.org -Precedence: bulk -List-ID: -X-Mailing-List: linux-omap@vger.kernel.org -X-UTwente-MailScanner-Information: Scanned by MailScanner. Contact servicedesk@icts.utwente.nl for more information. -X-UTwente-MailScanner: Found to be clean -X-UTwente-MailScanner-From: linux-omap-owner@vger.kernel.org -X-Spam-Status: No -X-OriginalArrivalTime: 21 Jun 2008 17:06:02.0187 (UTC) FILETIME=[157001B0:01C8D3C1] - - -On OMAP3430ES2, DSS has both an initiator standby CM_IDLEST bit, and a -target idle CM_IDLEST bit. This is a departure from previous silicon, -which only had an initiator standby bit. - -This means we need to test the target idle bit after enabling -dss1_alwon_fclk. Previous clock code has done the wrong thing since ES2 -came out: it's either tested the wrong bit, causing intermittent - - Clock dss1_alwon_fck didn't enable in 100000 tries - -messages; or not tested anything at all, causing intermittent crashes -during DISPC initialization with: - - Unhandled fault: external abort on non-linefetch (0x1028) - -This patch modifies omap2_clk_wait_ready() to wait for the DSS to become -accessible after dss1_alwon_fclk is enabled. - -Thanks to Anand Gadiyar for identifying one of the -problem patches. - -Signed-off-by: Paul Walmsley ---- - - arch/arm/mach-omap2/clock.c | 30 ++++++++++++++++++++++++------ - arch/arm/mach-omap2/cm-regbits-34xx.h | 4 +++- - 2 files changed, 27 insertions(+), 7 deletions(-) - -diff --git a/arch/arm/mach-omap2/clock.c b/arch/arm/mach-omap2/clock.c -index ed15868..1820f75 100644 ---- a/arch/arm/mach-omap2/clock.c -+++ b/arch/arm/mach-omap2/clock.c -@@ -244,18 +244,36 @@ static void omap2_clk_wait_ready(struct clk *clk) - } - - /* REVISIT: What are the appropriate exclusions for 34XX? */ -- /* OMAP3: ignore DSS-mod clocks */ -- if (cpu_is_omap34xx() && -- ((reg & ~0xff) == (__force u32)OMAP34XX_CM_REGADDR(OMAP3430_DSS_MOD, 0) || -- (((reg & ~0xff) == (__force u32)OMAP34XX_CM_REGADDR(CORE_MOD, 0)) && -- clk->enable_bit == OMAP3430_EN_SSI_SHIFT))) -- return; -+ if (cpu_is_omap34xx()) { -+ -+ /* 3430ES1 DSS and SSI have no target idlest bits */ -+ if (is_sil_rev_equal_to(OMAP3430_REV_ES1_0) && -+ ((reg & ~0xff) == (__force u32)OMAP34XX_CM_REGADDR(OMAP3430_DSS_MOD, 0) || -+ ((reg & ~0xff) == (__force u32)OMAP34XX_CM_REGADDR(CORE_MOD, 0) && -+ clk->enable_bit == OMAP3430_EN_SSI_SHIFT))) -+ return; -+ -+ /* Even for 3430ES2 DSS, only wait for dss1_alwon_fclk */ -+ if (is_sil_rev_greater_than(OMAP3430_REV_ES1_0) && -+ (reg & ~0xff) == (__force u32)OMAP34XX_CM_REGADDR(OMAP3430_DSS_MOD, 0) && -+ clk->enable_bit != OMAP3430_EN_DSS1_SHIFT) -+ return; -+ -+ } - - /* Check if both functional and interface clocks - * are running. */ - bit = 1 << clk->enable_bit; - if (!(__raw_readl((__force void __iomem *)other_reg) & bit)) - return; -+ -+ /* OMAP3430ES2 DSS is an unusual case */ -+ if (cpu_is_omap34xx() && -+ (reg & ~0xff) == (__force u32)OMAP34XX_CM_REGADDR(OMAP3430_DSS_MOD, 0) && -+ clk->enable_bit == OMAP3430_EN_DSS1_SHIFT) { -+ bit = OMAP3430ES2_ST_DSS_IDLE; -+ } -+ - st_reg = ((other_reg & ~0xf0) | 0x20); /* CM_IDLEST* */ - - omap2_wait_clock_ready((__force void __iomem *)st_reg, bit, clk->name); -diff --git a/arch/arm/mach-omap2/cm-regbits-34xx.h b/arch/arm/mach-omap2/cm-regbits-34xx.h -index 6ec66f4..946c552 100644 ---- a/arch/arm/mach-omap2/cm-regbits-34xx.h -+++ b/arch/arm/mach-omap2/cm-regbits-34xx.h -@@ -500,7 +500,9 @@ - #define OMAP3430_CM_ICLKEN_DSS_EN_DSS_SHIFT 0 - - /* CM_IDLEST_DSS */ --#define OMAP3430_ST_DSS (1 << 0) -+#define OMAP3430ES2_ST_DSS_IDLE (1 << 1) -+#define OMAP3430ES2_ST_DSS_STDBY (1 << 0) -+#define OMAP3430ES1_ST_DSS (1 << 0) - - /* CM_AUTOIDLE_DSS */ - #define OMAP3430_AUTO_DSS (1 << 0) --- -To unsubscribe from this list: send the line "unsubscribe linux-omap" in -the body of a message to majordomo@vger.kernel.org -More majordomo info at http://vger.kernel.org/majordomo-info.html - +From linux-omap-owner@vger.kernel.org Sun Jun 22 10:11:39 2008 +Received: from localhost + ([127.0.0.1] helo=dominion ident=koen) + by dominion.dominion.void with esmtp (Exim 4.63) + (envelope-from ) + id 1KAKfj-0008Qc-FC + for koen@localhost; Sun, 22 Jun 2008 10:11:39 +0200 +Received: from xs.service.utwente.nl [130.89.5.250] + by dominion with POP3 (fetchmail-6.3.6) + for (single-drop); Sun, 22 Jun 2008 10:11:39 +0200 (CEST) +Received: from mail.service.utwente.nl ([130.89.5.253]) by exchange.service.utwente.nl with Microsoft SMTPSVC(6.0.3790.3959); + Sat, 21 Jun 2008 19:06:02 +0200 +Received: from smtp.utwente.nl ([130.89.2.9]) by mail.service.utwente.nl with Microsoft SMTPSVC(6.0.3790.3959); + Sat, 21 Jun 2008 19:06:01 +0200 +Received: from vger.kernel.org (vger.kernel.org [209.132.176.167]) + by smtp.utwente.nl (8.12.10/SuSE Linux 0.7) with ESMTP id m5LH5TSm026212 + for ; Sat, 21 Jun 2008 19:05:30 +0200 +Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand + id S1753396AbYFURFN (ORCPT ); + Sat, 21 Jun 2008 13:05:13 -0400 +Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753305AbYFURFN + (ORCPT ); + Sat, 21 Jun 2008 13:05:13 -0400 +Received: from utopia.booyaka.com ([72.9.107.138]:41675 "EHLO + utopia.booyaka.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org + with ESMTP id S1753145AbYFURFL (ORCPT + ); Sat, 21 Jun 2008 13:05:11 -0400 +Received: (qmail 20532 invoked by uid 526); 21 Jun 2008 17:05:10 -0000 +Date: Sat, 21 Jun 2008 11:05:10 -0600 (MDT) +From: Paul Walmsley +To: "Gadiyar, Anand" , + "linux-omap@vger.kernel.org" +cc: Dirk Behme , + "jouni.hogander@nokia.com" +Subject: [PATCH] OMAP3 clock: fix omap2_clk_wait_ready for OMAP3430ES2 DSS +In-Reply-To: <5A47E75E594F054BAF48C5E4FC4B92AB022BB66209@dbde02.ent.ti.com> +Message-ID: +References: <5A47E75E594F054BAF48C5E4FC4B92AB022BE46296@dbde02.ent.ti.com>,<485CA347.909@googlemail.com> <5A47E75E594F054BAF48C5E4FC4B92AB022BB66209@dbde02.ent.ti.com> +User-Agent: Alpine 1.00 (DEB 882 2007-12-20) +MIME-Version: 1.0 +Content-Type: TEXT/PLAIN; charset=US-ASCII +Sender: linux-omap-owner@vger.kernel.org +Precedence: bulk +List-ID: +X-Mailing-List: linux-omap@vger.kernel.org +X-UTwente-MailScanner-Information: Scanned by MailScanner. Contact servicedesk@icts.utwente.nl for more information. +X-UTwente-MailScanner: Found to be clean +X-UTwente-MailScanner-From: linux-omap-owner@vger.kernel.org +X-Spam-Status: No +X-OriginalArrivalTime: 21 Jun 2008 17:06:02.0187 (UTC) FILETIME=[157001B0:01C8D3C1] + + +On OMAP3430ES2, DSS has both an initiator standby CM_IDLEST bit, and a +target idle CM_IDLEST bit. This is a departure from previous silicon, +which only had an initiator standby bit. + +This means we need to test the target idle bit after enabling +dss1_alwon_fclk. Previous clock code has done the wrong thing since ES2 +came out: it's either tested the wrong bit, causing intermittent + + Clock dss1_alwon_fck didn't enable in 100000 tries + +messages; or not tested anything at all, causing intermittent crashes +during DISPC initialization with: + + Unhandled fault: external abort on non-linefetch (0x1028) + +This patch modifies omap2_clk_wait_ready() to wait for the DSS to become +accessible after dss1_alwon_fclk is enabled. + +Thanks to Anand Gadiyar for identifying one of the +problem patches. + +Signed-off-by: Paul Walmsley +--- + + arch/arm/mach-omap2/clock.c | 30 ++++++++++++++++++++++++------ + arch/arm/mach-omap2/cm-regbits-34xx.h | 4 +++- + 2 files changed, 27 insertions(+), 7 deletions(-) + +diff --git a/arch/arm/mach-omap2/clock.c b/arch/arm/mach-omap2/clock.c +index ed15868..1820f75 100644 +--- a/arch/arm/mach-omap2/clock.c ++++ b/arch/arm/mach-omap2/clock.c +@@ -244,18 +244,36 @@ static void omap2_clk_wait_ready(struct clk *clk) + } + + /* REVISIT: What are the appropriate exclusions for 34XX? */ +- /* OMAP3: ignore DSS-mod clocks */ +- if (cpu_is_omap34xx() && +- ((reg & ~0xff) == (__force u32)OMAP34XX_CM_REGADDR(OMAP3430_DSS_MOD, 0) || +- (((reg & ~0xff) == (__force u32)OMAP34XX_CM_REGADDR(CORE_MOD, 0)) && +- clk->enable_bit == OMAP3430_EN_SSI_SHIFT))) +- return; ++ if (cpu_is_omap34xx()) { ++ ++ /* 3430ES1 DSS and SSI have no target idlest bits */ ++ if (is_sil_rev_equal_to(OMAP3430_REV_ES1_0) && ++ ((reg & ~0xff) == (__force u32)OMAP34XX_CM_REGADDR(OMAP3430_DSS_MOD, 0) || ++ ((reg & ~0xff) == (__force u32)OMAP34XX_CM_REGADDR(CORE_MOD, 0) && ++ clk->enable_bit == OMAP3430_EN_SSI_SHIFT))) ++ return; ++ ++ /* Even for 3430ES2 DSS, only wait for dss1_alwon_fclk */ ++ if (is_sil_rev_greater_than(OMAP3430_REV_ES1_0) && ++ (reg & ~0xff) == (__force u32)OMAP34XX_CM_REGADDR(OMAP3430_DSS_MOD, 0) && ++ clk->enable_bit != OMAP3430_EN_DSS1_SHIFT) ++ return; ++ ++ } + + /* Check if both functional and interface clocks + * are running. */ + bit = 1 << clk->enable_bit; + if (!(__raw_readl((__force void __iomem *)other_reg) & bit)) + return; ++ ++ /* OMAP3430ES2 DSS is an unusual case */ ++ if (cpu_is_omap34xx() && ++ (reg & ~0xff) == (__force u32)OMAP34XX_CM_REGADDR(OMAP3430_DSS_MOD, 0) && ++ clk->enable_bit == OMAP3430_EN_DSS1_SHIFT) { ++ bit = OMAP3430ES2_ST_DSS_IDLE; ++ } ++ + st_reg = ((other_reg & ~0xf0) | 0x20); /* CM_IDLEST* */ + + omap2_wait_clock_ready((__force void __iomem *)st_reg, bit, clk->name); +diff --git a/arch/arm/mach-omap2/cm-regbits-34xx.h b/arch/arm/mach-omap2/cm-regbits-34xx.h +index 6ec66f4..946c552 100644 +--- a/arch/arm/mach-omap2/cm-regbits-34xx.h ++++ b/arch/arm/mach-omap2/cm-regbits-34xx.h +@@ -500,7 +500,9 @@ + #define OMAP3430_CM_ICLKEN_DSS_EN_DSS_SHIFT 0 + + /* CM_IDLEST_DSS */ +-#define OMAP3430_ST_DSS (1 << 0) ++#define OMAP3430ES2_ST_DSS_IDLE (1 << 1) ++#define OMAP3430ES2_ST_DSS_STDBY (1 << 0) ++#define OMAP3430ES1_ST_DSS (1 << 0) + + /* CM_AUTOIDLE_DSS */ + #define OMAP3430_AUTO_DSS (1 << 0) +-- +To unsubscribe from this list: send the line "unsubscribe linux-omap" in +the body of a message to majordomo@vger.kernel.org +More majordomo info at http://vger.kernel.org/majordomo-info.html + diff --git a/packages/linux/linux-omap2-git/omap3evm/0001-omap3-cpuidle.patch b/packages/linux/linux-omap2-git/omap3evm/0001-omap3-cpuidle.patch index 28b1ef2214..cdc9447b4c 100644 --- a/packages/linux/linux-omap2-git/omap3evm/0001-omap3-cpuidle.patch +++ b/packages/linux/linux-omap2-git/omap3evm/0001-omap3-cpuidle.patch @@ -1,450 +1,450 @@ -From: "Rajendra Nayak" -To: -Subject: [PATCH 01/02] OMAP3 CPUidle driver -Date: Tue, 10 Jun 2008 12:39:00 +0530 - -This patch adds the OMAP3 cpuidle driver. Irq enable/disable is done in the core cpuidle driver -before it queries the governor for the next state. - -Signed-off-by: Rajendra Nayak - ---- - arch/arm/mach-omap2/Makefile | 2 - arch/arm/mach-omap2/cpuidle34xx.c | 293 ++++++++++++++++++++++++++++++++++++++ - arch/arm/mach-omap2/cpuidle34xx.h | 51 ++++++ - arch/arm/mach-omap2/pm34xx.c | 5 - drivers/cpuidle/cpuidle.c | 10 + - 5 files changed, 359 insertions(+), 2 deletions(-) - -Index: linux-omap-2.6/arch/arm/mach-omap2/Makefile -=================================================================== ---- linux-omap-2.6.orig/arch/arm/mach-omap2/Makefile 2008-06-09 20:15:33.855303920 +0530 -+++ linux-omap-2.6/arch/arm/mach-omap2/Makefile 2008-06-09 20:15:39.569121361 +0530 -@@ -20,7 +20,7 @@ obj-y += pm.o - obj-$(CONFIG_ARCH_OMAP2) += pm24xx.o - obj-$(CONFIG_ARCH_OMAP2420) += sleep242x.o - obj-$(CONFIG_ARCH_OMAP2430) += sleep243x.o --obj-$(CONFIG_ARCH_OMAP3) += pm34xx.o sleep34xx.o -+obj-$(CONFIG_ARCH_OMAP3) += pm34xx.o sleep34xx.o cpuidle34xx.o - obj-$(CONFIG_PM_DEBUG) += pm-debug.o - endif - -Index: linux-omap-2.6/arch/arm/mach-omap2/cpuidle34xx.c -=================================================================== ---- /dev/null 1970-01-01 00:00:00.000000000 +0000 -+++ linux-omap-2.6/arch/arm/mach-omap2/cpuidle34xx.c 2008-06-10 11:41:27.644820323 +0530 -@@ -0,0 +1,293 @@ -+/* -+ * linux/arch/arm/mach-omap2/cpuidle34xx.c -+ * -+ * OMAP3 CPU IDLE Routines -+ * -+ * Copyright (C) 2007-2008 Texas Instruments, Inc. -+ * Rajendra Nayak -+ * -+ * Copyright (C) 2007 Texas Instruments, Inc. -+ * Karthik Dasu -+ * -+ * Copyright (C) 2006 Nokia Corporation -+ * Tony Lindgren -+ * -+ * Copyright (C) 2005 Texas Instruments, Inc. -+ * Richard Woodruff -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License version 2 as -+ * published by the Free Software Foundation. -+ */ -+ -+#include -+#include -+#include -+#include -+#include -+#include -+#include "cpuidle34xx.h" -+ -+#ifdef CONFIG_CPU_IDLE -+ -+struct omap3_processor_cx omap3_power_states[OMAP3_MAX_STATES]; -+struct omap3_processor_cx current_cx_state; -+ -+static int omap3_idle_bm_check(void) -+{ -+ /* Check for omap3_fclks_active() here once available */ -+ return 0; -+} -+ -+/* omap3_enter_idle - Programs OMAP3 to enter the specified state. -+ * returns the total time during which the system was idle. -+ */ -+static int omap3_enter_idle(struct cpuidle_device *dev, -+ struct cpuidle_state *state) -+{ -+ struct omap3_processor_cx *cx = cpuidle_get_statedata(state); -+ struct timespec ts_preidle, ts_postidle, ts_idle; -+ struct powerdomain *mpu_pd, *core_pd, *per_pd, *neon_pd; -+ int neon_pwrst; -+ -+ current_cx_state = *cx; -+ -+ if (cx->type == OMAP3_STATE_C0) { -+ /* Do nothing for C0, not even a wfi */ -+ return 0; -+ } -+ -+ /* Used to keep track of the total time in idle */ -+ getnstimeofday(&ts_preidle); -+ -+ mpu_pd = pwrdm_lookup("mpu_pwrdm"); -+ core_pd = pwrdm_lookup("core_pwrdm"); -+ per_pd = pwrdm_lookup("per_pwrdm"); -+ neon_pd = pwrdm_lookup("neon_pwrdm"); -+ -+ /* Reset previous power state registers */ -+ pwrdm_clear_all_prev_pwrst(mpu_pd); -+ pwrdm_clear_all_prev_pwrst(neon_pd); -+ pwrdm_clear_all_prev_pwrst(core_pd); -+ pwrdm_clear_all_prev_pwrst(per_pd); -+ -+ if (omap_irq_pending()) -+ return 0; -+ -+ neon_pwrst = pwrdm_read_pwrst(neon_pd); -+ -+ /* Program MPU/NEON to target state */ -+ if (cx->mpu_state < PWRDM_POWER_ON) { -+ if (neon_pwrst == PWRDM_POWER_ON) { -+ if (cx->mpu_state == PWRDM_POWER_RET) -+ pwrdm_set_next_pwrst(neon_pd, PWRDM_POWER_RET); -+ else if (cx->mpu_state == PWRDM_POWER_OFF) -+ pwrdm_set_next_pwrst(neon_pd, PWRDM_POWER_OFF); -+ } -+ pwrdm_set_next_pwrst(mpu_pd, cx->mpu_state); -+ } -+ -+ /* Program CORE to target state */ -+ if (cx->core_state < PWRDM_POWER_ON) -+ pwrdm_set_next_pwrst(core_pd, cx->core_state); -+ -+ /* Execute ARM wfi */ -+ omap_sram_idle(); -+ -+ /* Program MPU/NEON to ON */ -+ if (cx->mpu_state < PWRDM_POWER_ON) { -+ if (neon_pwrst == PWRDM_POWER_ON) -+ pwrdm_set_next_pwrst(neon_pd, PWRDM_POWER_ON); -+ pwrdm_set_next_pwrst(mpu_pd, PWRDM_POWER_ON); -+ } -+ -+ if (cx->core_state < PWRDM_POWER_ON) -+ pwrdm_set_next_pwrst(core_pd, PWRDM_POWER_ON); -+ -+ getnstimeofday(&ts_postidle); -+ ts_idle = timespec_sub(ts_postidle, ts_preidle); -+ return timespec_to_ns(&ts_idle); -+} -+ -+/* -+ * omap3_enter_idle_bm - enter function for states with CPUIDLE_FLAG_CHECK_BM -+ * -+ * This function checks for all the pre-requisites needed for OMAP3 to enter -+ * CORE RET/OFF state. It then calls omap3_enter_idle to program the desired -+ * C state. -+ */ -+static int omap3_enter_idle_bm(struct cpuidle_device *dev, -+ struct cpuidle_state *state) -+{ -+ struct cpuidle_state *new_state = NULL; -+ int i, j; -+ -+ if ((state->flags & CPUIDLE_FLAG_CHECK_BM) && omap3_idle_bm_check()) { -+ -+ /* Find current state in list */ -+ for (i = 0; i < OMAP3_MAX_STATES; i++) -+ if (state == &dev->states[i]) -+ break; -+ BUG_ON(i == OMAP3_MAX_STATES); -+ -+ /* Back up to non 'CHECK_BM' state */ -+ for (j = i - 1; j > 0; j--) { -+ struct cpuidle_state *s = &dev->states[j]; -+ -+ if (!(s->flags & CPUIDLE_FLAG_CHECK_BM)) { -+ new_state = s; -+ break; -+ } -+ } -+ -+ pr_debug("%s: Bus activity: Entering %s (instead of %s)\n", -+ __FUNCTION__, new_state->name, state->name); -+ } -+ -+ return omap3_enter_idle(dev, new_state ? : state); -+} -+ -+DEFINE_PER_CPU(struct cpuidle_device, omap3_idle_dev); -+ -+/* omap3_init_power_states - Initialises the OMAP3 specific C states. -+ * Below is the desciption of each C state. -+ * -+ C0 . System executing code -+ C1 . MPU WFI + Core active -+ C2 . MPU CSWR + Core active -+ C3 . MPU OFF + Core active -+ C4 . MPU CSWR + Core CSWR -+ C5 . MPU OFF + Core CSWR -+ C6 . MPU OFF + Core OFF -+ */ -+void omap_init_power_states(void) -+{ -+ /* C0 . System executing code */ -+ omap3_power_states[0].valid = 1; -+ omap3_power_states[0].type = OMAP3_STATE_C0; -+ omap3_power_states[0].sleep_latency = 0; -+ omap3_power_states[0].wakeup_latency = 0; -+ omap3_power_states[0].threshold = 0; -+ omap3_power_states[0].mpu_state = PWRDM_POWER_ON; -+ omap3_power_states[0].core_state = PWRDM_POWER_ON; -+ omap3_power_states[0].flags = CPUIDLE_FLAG_TIME_VALID | -+ CPUIDLE_FLAG_SHALLOW; -+ -+ /* C1 . MPU WFI + Core active */ -+ omap3_power_states[1].valid = 1; -+ omap3_power_states[1].type = OMAP3_STATE_C1; -+ omap3_power_states[1].sleep_latency = 10; -+ omap3_power_states[1].wakeup_latency = 10; -+ omap3_power_states[1].threshold = 30; -+ omap3_power_states[1].mpu_state = PWRDM_POWER_ON; -+ omap3_power_states[1].core_state = PWRDM_POWER_ON; -+ omap3_power_states[1].flags = CPUIDLE_FLAG_TIME_VALID | -+ CPUIDLE_FLAG_SHALLOW; -+ -+ /* C2 . MPU CSWR + Core active */ -+ omap3_power_states[2].valid = 1; -+ omap3_power_states[2].type = OMAP3_STATE_C2; -+ omap3_power_states[2].sleep_latency = 50; -+ omap3_power_states[2].wakeup_latency = 50; -+ omap3_power_states[2].threshold = 300; -+ omap3_power_states[2].mpu_state = PWRDM_POWER_RET; -+ omap3_power_states[2].core_state = PWRDM_POWER_ON; -+ omap3_power_states[2].flags = CPUIDLE_FLAG_TIME_VALID | -+ CPUIDLE_FLAG_BALANCED; -+ -+ /* C3 . MPU OFF + Core active */ -+ omap3_power_states[3].valid = 0; -+ omap3_power_states[3].type = OMAP3_STATE_C3; -+ omap3_power_states[3].sleep_latency = 1500; -+ omap3_power_states[3].wakeup_latency = 1800; -+ omap3_power_states[3].threshold = 4000; -+ omap3_power_states[3].mpu_state = PWRDM_POWER_OFF; -+ omap3_power_states[3].core_state = PWRDM_POWER_RET; -+ omap3_power_states[3].flags = CPUIDLE_FLAG_TIME_VALID | -+ CPUIDLE_FLAG_BALANCED; -+ -+ /* C4 . MPU CSWR + Core CSWR*/ -+ omap3_power_states[4].valid = 1; -+ omap3_power_states[4].type = OMAP3_STATE_C4; -+ omap3_power_states[4].sleep_latency = 2500; -+ omap3_power_states[4].wakeup_latency = 7500; -+ omap3_power_states[4].threshold = 12000; -+ omap3_power_states[4].mpu_state = PWRDM_POWER_RET; -+ omap3_power_states[4].core_state = PWRDM_POWER_RET; -+ omap3_power_states[4].flags = CPUIDLE_FLAG_TIME_VALID | -+ CPUIDLE_FLAG_BALANCED | CPUIDLE_FLAG_CHECK_BM; -+ -+ /* C5 . MPU OFF + Core CSWR */ -+ omap3_power_states[5].valid = 0; -+ omap3_power_states[5].type = OMAP3_STATE_C5; -+ omap3_power_states[5].sleep_latency = 3000; -+ omap3_power_states[5].wakeup_latency = 8500; -+ omap3_power_states[5].threshold = 15000; -+ omap3_power_states[5].mpu_state = PWRDM_POWER_OFF; -+ omap3_power_states[5].core_state = PWRDM_POWER_RET; -+ omap3_power_states[5].flags = CPUIDLE_FLAG_TIME_VALID | -+ CPUIDLE_FLAG_BALANCED | CPUIDLE_FLAG_CHECK_BM; -+ -+ /* C6 . MPU OFF + Core OFF */ -+ omap3_power_states[6].valid = 0; -+ omap3_power_states[6].type = OMAP3_STATE_C6; -+ omap3_power_states[6].sleep_latency = 10000; -+ omap3_power_states[6].wakeup_latency = 30000; -+ omap3_power_states[6].threshold = 300000; -+ omap3_power_states[6].mpu_state = PWRDM_POWER_OFF; -+ omap3_power_states[6].core_state = PWRDM_POWER_OFF; -+ omap3_power_states[6].flags = CPUIDLE_FLAG_TIME_VALID | -+ CPUIDLE_FLAG_DEEP | CPUIDLE_FLAG_CHECK_BM; -+} -+ -+struct cpuidle_driver omap3_idle_driver = { -+ .name = "omap3_idle", -+ .owner = THIS_MODULE, -+}; -+/* -+ * omap3_idle_init - Init routine for OMAP3 idle. -+ * Registers the OMAP3 specific cpuidle driver with the cpuidle f/w -+ * with the valid set of states. -+ */ -+int omap3_idle_init(void) -+{ -+ int i, count = 0; -+ struct omap3_processor_cx *cx; -+ struct cpuidle_state *state; -+ struct cpuidle_device *dev; -+ -+ omap_init_power_states(); -+ cpuidle_register_driver(&omap3_idle_driver); -+ -+ dev = &per_cpu(omap3_idle_dev, smp_processor_id()); -+ -+ for (i = 0; i < OMAP3_MAX_STATES; i++) { -+ cx = &omap3_power_states[i]; -+ state = &dev->states[count]; -+ -+ if (!cx->valid) -+ continue; -+ cpuidle_set_statedata(state, cx); -+ state->exit_latency = cx->sleep_latency + cx->wakeup_latency; -+ state->target_residency = cx->threshold; -+ state->flags = cx->flags; -+ state->enter = (state->flags & CPUIDLE_FLAG_CHECK_BM) ? -+ omap3_enter_idle_bm : omap3_enter_idle; -+ sprintf(state->name, "C%d", count+1); -+ count++; -+ } -+ -+ if (!count) -+ return -EINVAL; -+ dev->state_count = count; -+ -+ if (cpuidle_register_device(dev)) { -+ printk(KERN_ERR "%s: CPUidle register device failed\n", -+ __FUNCTION__); -+ return -EIO; -+ } -+ -+ return 0; -+} -+__initcall(omap3_idle_init); -+#endif /* CONFIG_CPU_IDLE */ -Index: linux-omap-2.6/arch/arm/mach-omap2/cpuidle34xx.h -=================================================================== ---- /dev/null 1970-01-01 00:00:00.000000000 +0000 -+++ linux-omap-2.6/arch/arm/mach-omap2/cpuidle34xx.h 2008-06-09 20:15:39.569121361 +0530 -@@ -0,0 +1,51 @@ -+/* -+ * linux/arch/arm/mach-omap2/cpuidle34xx.h -+ * -+ * OMAP3 cpuidle structure definitions -+ * -+ * Copyright (C) 2007-2008 Texas Instruments, Inc. -+ * Written by Rajendra Nayak -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License version 2 as -+ * published by the Free Software Foundation. -+ * -+ * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR -+ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED -+ * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. -+ * -+ * History: -+ * -+ */ -+ -+#ifndef ARCH_ARM_MACH_OMAP2_CPUIDLE_34XX -+#define ARCH_ARM_MACH_OMAP2_CPUIDLE_34XX -+ -+#define OMAP3_MAX_STATES 7 -+#define OMAP3_STATE_C0 0 /* C0 - System executing code */ -+#define OMAP3_STATE_C1 1 /* C1 - MPU WFI + Core active */ -+#define OMAP3_STATE_C2 2 /* C2 - MPU CSWR + Core active */ -+#define OMAP3_STATE_C3 3 /* C3 - MPU OFF + Core active */ -+#define OMAP3_STATE_C4 4 /* C4 - MPU RET + Core RET */ -+#define OMAP3_STATE_C5 5 /* C5 - MPU OFF + Core RET */ -+#define OMAP3_STATE_C6 6 /* C6 - MPU OFF + Core OFF */ -+ -+extern void omap_sram_idle(void); -+extern int omap3_irq_pending(void); -+ -+struct omap3_processor_cx { -+ u8 valid; -+ u8 type; -+ u32 sleep_latency; -+ u32 wakeup_latency; -+ u32 mpu_state; -+ u32 core_state; -+ u32 threshold; -+ u32 flags; -+}; -+ -+void omap_init_power_states(void); -+int omap3_idle_init(void); -+ -+#endif /* ARCH_ARM_MACH_OMAP2_CPUIDLE_34XX */ -+ -Index: linux-omap-2.6/arch/arm/mach-omap2/pm34xx.c -=================================================================== ---- linux-omap-2.6.orig/arch/arm/mach-omap2/pm34xx.c 2008-06-09 20:15:33.855303920 +0530 -+++ linux-omap-2.6/arch/arm/mach-omap2/pm34xx.c 2008-06-09 20:16:20.976798343 +0530 -@@ -141,7 +141,7 @@ static irqreturn_t prcm_interrupt_handle - return IRQ_HANDLED; - } - --static void omap_sram_idle(void) -+void omap_sram_idle(void) - { - /* Variable to tell what needs to be saved and restored - * in omap_sram_idle*/ -@@ -156,6 +156,7 @@ static void omap_sram_idle(void) - - mpu_next_state = pwrdm_read_next_pwrst(mpu_pwrdm); - switch (mpu_next_state) { -+ case PWRDM_POWER_ON: - case PWRDM_POWER_RET: - /* No need to save context */ - save_state = 0; -@@ -386,7 +387,9 @@ int __init omap3_pm_init(void) - - prcm_setup_regs(); - -+#ifndef CONFIG_CPU_IDLE - pm_idle = omap3_pm_idle; -+#endif - - err1: - return ret; -Index: linux-omap-2.6/drivers/cpuidle/cpuidle.c -=================================================================== ---- linux-omap-2.6.orig/drivers/cpuidle/cpuidle.c 2008-06-09 20:15:33.856303888 +0530 -+++ linux-omap-2.6/drivers/cpuidle/cpuidle.c 2008-06-09 20:15:39.570121329 +0530 -@@ -58,6 +58,11 @@ static void cpuidle_idle_call(void) - return; - } - -+#ifdef CONFIG_ARCH_OMAP3 -+ local_irq_disable(); -+ local_fiq_disable(); -+#endif -+ - /* ask the governor for the next state */ - next_state = cpuidle_curr_governor->select(dev); - if (need_resched()) -@@ -70,6 +75,11 @@ static void cpuidle_idle_call(void) - target_state->time += (unsigned long long)dev->last_residency; - target_state->usage++; - -+#ifdef CONFIG_ARCH_OMAP3 -+ local_irq_enable(); -+ local_fiq_enable(); -+#endif -+ - /* give the governor an opportunity to reflect on the outcome */ - if (cpuidle_curr_governor->reflect) - cpuidle_curr_governor->reflect(dev); - --- -To unsubscribe from this list: send the line "unsubscribe linux-omap" in -the body of a message to majordomo@vger.kernel.org -More majordomo info at http://vger.kernel.org/majordomo-info.html - +From: "Rajendra Nayak" +To: +Subject: [PATCH 01/02] OMAP3 CPUidle driver +Date: Tue, 10 Jun 2008 12:39:00 +0530 + +This patch adds the OMAP3 cpuidle driver. Irq enable/disable is done in the core cpuidle driver +before it queries the governor for the next state. + +Signed-off-by: Rajendra Nayak + +--- + arch/arm/mach-omap2/Makefile | 2 + arch/arm/mach-omap2/cpuidle34xx.c | 293 ++++++++++++++++++++++++++++++++++++++ + arch/arm/mach-omap2/cpuidle34xx.h | 51 ++++++ + arch/arm/mach-omap2/pm34xx.c | 5 + drivers/cpuidle/cpuidle.c | 10 + + 5 files changed, 359 insertions(+), 2 deletions(-) + +Index: linux-omap-2.6/arch/arm/mach-omap2/Makefile +=================================================================== +--- linux-omap-2.6.orig/arch/arm/mach-omap2/Makefile 2008-06-09 20:15:33.855303920 +0530 ++++ linux-omap-2.6/arch/arm/mach-omap2/Makefile 2008-06-09 20:15:39.569121361 +0530 +@@ -20,7 +20,7 @@ obj-y += pm.o + obj-$(CONFIG_ARCH_OMAP2) += pm24xx.o + obj-$(CONFIG_ARCH_OMAP2420) += sleep242x.o + obj-$(CONFIG_ARCH_OMAP2430) += sleep243x.o +-obj-$(CONFIG_ARCH_OMAP3) += pm34xx.o sleep34xx.o ++obj-$(CONFIG_ARCH_OMAP3) += pm34xx.o sleep34xx.o cpuidle34xx.o + obj-$(CONFIG_PM_DEBUG) += pm-debug.o + endif + +Index: linux-omap-2.6/arch/arm/mach-omap2/cpuidle34xx.c +=================================================================== +--- /dev/null 1970-01-01 00:00:00.000000000 +0000 ++++ linux-omap-2.6/arch/arm/mach-omap2/cpuidle34xx.c 2008-06-10 11:41:27.644820323 +0530 +@@ -0,0 +1,293 @@ ++/* ++ * linux/arch/arm/mach-omap2/cpuidle34xx.c ++ * ++ * OMAP3 CPU IDLE Routines ++ * ++ * Copyright (C) 2007-2008 Texas Instruments, Inc. ++ * Rajendra Nayak ++ * ++ * Copyright (C) 2007 Texas Instruments, Inc. ++ * Karthik Dasu ++ * ++ * Copyright (C) 2006 Nokia Corporation ++ * Tony Lindgren ++ * ++ * Copyright (C) 2005 Texas Instruments, Inc. ++ * Richard Woodruff ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++ ++#include ++#include ++#include ++#include ++#include ++#include ++#include "cpuidle34xx.h" ++ ++#ifdef CONFIG_CPU_IDLE ++ ++struct omap3_processor_cx omap3_power_states[OMAP3_MAX_STATES]; ++struct omap3_processor_cx current_cx_state; ++ ++static int omap3_idle_bm_check(void) ++{ ++ /* Check for omap3_fclks_active() here once available */ ++ return 0; ++} ++ ++/* omap3_enter_idle - Programs OMAP3 to enter the specified state. ++ * returns the total time during which the system was idle. ++ */ ++static int omap3_enter_idle(struct cpuidle_device *dev, ++ struct cpuidle_state *state) ++{ ++ struct omap3_processor_cx *cx = cpuidle_get_statedata(state); ++ struct timespec ts_preidle, ts_postidle, ts_idle; ++ struct powerdomain *mpu_pd, *core_pd, *per_pd, *neon_pd; ++ int neon_pwrst; ++ ++ current_cx_state = *cx; ++ ++ if (cx->type == OMAP3_STATE_C0) { ++ /* Do nothing for C0, not even a wfi */ ++ return 0; ++ } ++ ++ /* Used to keep track of the total time in idle */ ++ getnstimeofday(&ts_preidle); ++ ++ mpu_pd = pwrdm_lookup("mpu_pwrdm"); ++ core_pd = pwrdm_lookup("core_pwrdm"); ++ per_pd = pwrdm_lookup("per_pwrdm"); ++ neon_pd = pwrdm_lookup("neon_pwrdm"); ++ ++ /* Reset previous power state registers */ ++ pwrdm_clear_all_prev_pwrst(mpu_pd); ++ pwrdm_clear_all_prev_pwrst(neon_pd); ++ pwrdm_clear_all_prev_pwrst(core_pd); ++ pwrdm_clear_all_prev_pwrst(per_pd); ++ ++ if (omap_irq_pending()) ++ return 0; ++ ++ neon_pwrst = pwrdm_read_pwrst(neon_pd); ++ ++ /* Program MPU/NEON to target state */ ++ if (cx->mpu_state < PWRDM_POWER_ON) { ++ if (neon_pwrst == PWRDM_POWER_ON) { ++ if (cx->mpu_state == PWRDM_POWER_RET) ++ pwrdm_set_next_pwrst(neon_pd, PWRDM_POWER_RET); ++ else if (cx->mpu_state == PWRDM_POWER_OFF) ++ pwrdm_set_next_pwrst(neon_pd, PWRDM_POWER_OFF); ++ } ++ pwrdm_set_next_pwrst(mpu_pd, cx->mpu_state); ++ } ++ ++ /* Program CORE to target state */ ++ if (cx->core_state < PWRDM_POWER_ON) ++ pwrdm_set_next_pwrst(core_pd, cx->core_state); ++ ++ /* Execute ARM wfi */ ++ omap_sram_idle(); ++ ++ /* Program MPU/NEON to ON */ ++ if (cx->mpu_state < PWRDM_POWER_ON) { ++ if (neon_pwrst == PWRDM_POWER_ON) ++ pwrdm_set_next_pwrst(neon_pd, PWRDM_POWER_ON); ++ pwrdm_set_next_pwrst(mpu_pd, PWRDM_POWER_ON); ++ } ++ ++ if (cx->core_state < PWRDM_POWER_ON) ++ pwrdm_set_next_pwrst(core_pd, PWRDM_POWER_ON); ++ ++ getnstimeofday(&ts_postidle); ++ ts_idle = timespec_sub(ts_postidle, ts_preidle); ++ return timespec_to_ns(&ts_idle); ++} ++ ++/* ++ * omap3_enter_idle_bm - enter function for states with CPUIDLE_FLAG_CHECK_BM ++ * ++ * This function checks for all the pre-requisites needed for OMAP3 to enter ++ * CORE RET/OFF state. It then calls omap3_enter_idle to program the desired ++ * C state. ++ */ ++static int omap3_enter_idle_bm(struct cpuidle_device *dev, ++ struct cpuidle_state *state) ++{ ++ struct cpuidle_state *new_state = NULL; ++ int i, j; ++ ++ if ((state->flags & CPUIDLE_FLAG_CHECK_BM) && omap3_idle_bm_check()) { ++ ++ /* Find current state in list */ ++ for (i = 0; i < OMAP3_MAX_STATES; i++) ++ if (state == &dev->states[i]) ++ break; ++ BUG_ON(i == OMAP3_MAX_STATES); ++ ++ /* Back up to non 'CHECK_BM' state */ ++ for (j = i - 1; j > 0; j--) { ++ struct cpuidle_state *s = &dev->states[j]; ++ ++ if (!(s->flags & CPUIDLE_FLAG_CHECK_BM)) { ++ new_state = s; ++ break; ++ } ++ } ++ ++ pr_debug("%s: Bus activity: Entering %s (instead of %s)\n", ++ __FUNCTION__, new_state->name, state->name); ++ } ++ ++ return omap3_enter_idle(dev, new_state ? : state); ++} ++ ++DEFINE_PER_CPU(struct cpuidle_device, omap3_idle_dev); ++ ++/* omap3_init_power_states - Initialises the OMAP3 specific C states. ++ * Below is the desciption of each C state. ++ * ++ C0 . System executing code ++ C1 . MPU WFI + Core active ++ C2 . MPU CSWR + Core active ++ C3 . MPU OFF + Core active ++ C4 . MPU CSWR + Core CSWR ++ C5 . MPU OFF + Core CSWR ++ C6 . MPU OFF + Core OFF ++ */ ++void omap_init_power_states(void) ++{ ++ /* C0 . System executing code */ ++ omap3_power_states[0].valid = 1; ++ omap3_power_states[0].type = OMAP3_STATE_C0; ++ omap3_power_states[0].sleep_latency = 0; ++ omap3_power_states[0].wakeup_latency = 0; ++ omap3_power_states[0].threshold = 0; ++ omap3_power_states[0].mpu_state = PWRDM_POWER_ON; ++ omap3_power_states[0].core_state = PWRDM_POWER_ON; ++ omap3_power_states[0].flags = CPUIDLE_FLAG_TIME_VALID | ++ CPUIDLE_FLAG_SHALLOW; ++ ++ /* C1 . MPU WFI + Core active */ ++ omap3_power_states[1].valid = 1; ++ omap3_power_states[1].type = OMAP3_STATE_C1; ++ omap3_power_states[1].sleep_latency = 10; ++ omap3_power_states[1].wakeup_latency = 10; ++ omap3_power_states[1].threshold = 30; ++ omap3_power_states[1].mpu_state = PWRDM_POWER_ON; ++ omap3_power_states[1].core_state = PWRDM_POWER_ON; ++ omap3_power_states[1].flags = CPUIDLE_FLAG_TIME_VALID | ++ CPUIDLE_FLAG_SHALLOW; ++ ++ /* C2 . MPU CSWR + Core active */ ++ omap3_power_states[2].valid = 1; ++ omap3_power_states[2].type = OMAP3_STATE_C2; ++ omap3_power_states[2].sleep_latency = 50; ++ omap3_power_states[2].wakeup_latency = 50; ++ omap3_power_states[2].threshold = 300; ++ omap3_power_states[2].mpu_state = PWRDM_POWER_RET; ++ omap3_power_states[2].core_state = PWRDM_POWER_ON; ++ omap3_power_states[2].flags = CPUIDLE_FLAG_TIME_VALID | ++ CPUIDLE_FLAG_BALANCED; ++ ++ /* C3 . MPU OFF + Core active */ ++ omap3_power_states[3].valid = 0; ++ omap3_power_states[3].type = OMAP3_STATE_C3; ++ omap3_power_states[3].sleep_latency = 1500; ++ omap3_power_states[3].wakeup_latency = 1800; ++ omap3_power_states[3].threshold = 4000; ++ omap3_power_states[3].mpu_state = PWRDM_POWER_OFF; ++ omap3_power_states[3].core_state = PWRDM_POWER_RET; ++ omap3_power_states[3].flags = CPUIDLE_FLAG_TIME_VALID | ++ CPUIDLE_FLAG_BALANCED; ++ ++ /* C4 . MPU CSWR + Core CSWR*/ ++ omap3_power_states[4].valid = 1; ++ omap3_power_states[4].type = OMAP3_STATE_C4; ++ omap3_power_states[4].sleep_latency = 2500; ++ omap3_power_states[4].wakeup_latency = 7500; ++ omap3_power_states[4].threshold = 12000; ++ omap3_power_states[4].mpu_state = PWRDM_POWER_RET; ++ omap3_power_states[4].core_state = PWRDM_POWER_RET; ++ omap3_power_states[4].flags = CPUIDLE_FLAG_TIME_VALID | ++ CPUIDLE_FLAG_BALANCED | CPUIDLE_FLAG_CHECK_BM; ++ ++ /* C5 . MPU OFF + Core CSWR */ ++ omap3_power_states[5].valid = 0; ++ omap3_power_states[5].type = OMAP3_STATE_C5; ++ omap3_power_states[5].sleep_latency = 3000; ++ omap3_power_states[5].wakeup_latency = 8500; ++ omap3_power_states[5].threshold = 15000; ++ omap3_power_states[5].mpu_state = PWRDM_POWER_OFF; ++ omap3_power_states[5].core_state = PWRDM_POWER_RET; ++ omap3_power_states[5].flags = CPUIDLE_FLAG_TIME_VALID | ++ CPUIDLE_FLAG_BALANCED | CPUIDLE_FLAG_CHECK_BM; ++ ++ /* C6 . MPU OFF + Core OFF */ ++ omap3_power_states[6].valid = 0; ++ omap3_power_states[6].type = OMAP3_STATE_C6; ++ omap3_power_states[6].sleep_latency = 10000; ++ omap3_power_states[6].wakeup_latency = 30000; ++ omap3_power_states[6].threshold = 300000; ++ omap3_power_states[6].mpu_state = PWRDM_POWER_OFF; ++ omap3_power_states[6].core_state = PWRDM_POWER_OFF; ++ omap3_power_states[6].flags = CPUIDLE_FLAG_TIME_VALID | ++ CPUIDLE_FLAG_DEEP | CPUIDLE_FLAG_CHECK_BM; ++} ++ ++struct cpuidle_driver omap3_idle_driver = { ++ .name = "omap3_idle", ++ .owner = THIS_MODULE, ++}; ++/* ++ * omap3_idle_init - Init routine for OMAP3 idle. ++ * Registers the OMAP3 specific cpuidle driver with the cpuidle f/w ++ * with the valid set of states. ++ */ ++int omap3_idle_init(void) ++{ ++ int i, count = 0; ++ struct omap3_processor_cx *cx; ++ struct cpuidle_state *state; ++ struct cpuidle_device *dev; ++ ++ omap_init_power_states(); ++ cpuidle_register_driver(&omap3_idle_driver); ++ ++ dev = &per_cpu(omap3_idle_dev, smp_processor_id()); ++ ++ for (i = 0; i < OMAP3_MAX_STATES; i++) { ++ cx = &omap3_power_states[i]; ++ state = &dev->states[count]; ++ ++ if (!cx->valid) ++ continue; ++ cpuidle_set_statedata(state, cx); ++ state->exit_latency = cx->sleep_latency + cx->wakeup_latency; ++ state->target_residency = cx->threshold; ++ state->flags = cx->flags; ++ state->enter = (state->flags & CPUIDLE_FLAG_CHECK_BM) ? ++ omap3_enter_idle_bm : omap3_enter_idle; ++ sprintf(state->name, "C%d", count+1); ++ count++; ++ } ++ ++ if (!count) ++ return -EINVAL; ++ dev->state_count = count; ++ ++ if (cpuidle_register_device(dev)) { ++ printk(KERN_ERR "%s: CPUidle register device failed\n", ++ __FUNCTION__); ++ return -EIO; ++ } ++ ++ return 0; ++} ++__initcall(omap3_idle_init); ++#endif /* CONFIG_CPU_IDLE */ +Index: linux-omap-2.6/arch/arm/mach-omap2/cpuidle34xx.h +=================================================================== +--- /dev/null 1970-01-01 00:00:00.000000000 +0000 ++++ linux-omap-2.6/arch/arm/mach-omap2/cpuidle34xx.h 2008-06-09 20:15:39.569121361 +0530 +@@ -0,0 +1,51 @@ ++/* ++ * linux/arch/arm/mach-omap2/cpuidle34xx.h ++ * ++ * OMAP3 cpuidle structure definitions ++ * ++ * Copyright (C) 2007-2008 Texas Instruments, Inc. ++ * Written by Rajendra Nayak ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ * ++ * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR ++ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED ++ * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. ++ * ++ * History: ++ * ++ */ ++ ++#ifndef ARCH_ARM_MACH_OMAP2_CPUIDLE_34XX ++#define ARCH_ARM_MACH_OMAP2_CPUIDLE_34XX ++ ++#define OMAP3_MAX_STATES 7 ++#define OMAP3_STATE_C0 0 /* C0 - System executing code */ ++#define OMAP3_STATE_C1 1 /* C1 - MPU WFI + Core active */ ++#define OMAP3_STATE_C2 2 /* C2 - MPU CSWR + Core active */ ++#define OMAP3_STATE_C3 3 /* C3 - MPU OFF + Core active */ ++#define OMAP3_STATE_C4 4 /* C4 - MPU RET + Core RET */ ++#define OMAP3_STATE_C5 5 /* C5 - MPU OFF + Core RET */ ++#define OMAP3_STATE_C6 6 /* C6 - MPU OFF + Core OFF */ ++ ++extern void omap_sram_idle(void); ++extern int omap3_irq_pending(void); ++ ++struct omap3_processor_cx { ++ u8 valid; ++ u8 type; ++ u32 sleep_latency; ++ u32 wakeup_latency; ++ u32 mpu_state; ++ u32 core_state; ++ u32 threshold; ++ u32 flags; ++}; ++ ++void omap_init_power_states(void); ++int omap3_idle_init(void); ++ ++#endif /* ARCH_ARM_MACH_OMAP2_CPUIDLE_34XX */ ++ +Index: linux-omap-2.6/arch/arm/mach-omap2/pm34xx.c +=================================================================== +--- linux-omap-2.6.orig/arch/arm/mach-omap2/pm34xx.c 2008-06-09 20:15:33.855303920 +0530 ++++ linux-omap-2.6/arch/arm/mach-omap2/pm34xx.c 2008-06-09 20:16:20.976798343 +0530 +@@ -141,7 +141,7 @@ static irqreturn_t prcm_interrupt_handle + return IRQ_HANDLED; + } + +-static void omap_sram_idle(void) ++void omap_sram_idle(void) + { + /* Variable to tell what needs to be saved and restored + * in omap_sram_idle*/ +@@ -156,6 +156,7 @@ static void omap_sram_idle(void) + + mpu_next_state = pwrdm_read_next_pwrst(mpu_pwrdm); + switch (mpu_next_state) { ++ case PWRDM_POWER_ON: + case PWRDM_POWER_RET: + /* No need to save context */ + save_state = 0; +@@ -386,7 +387,9 @@ int __init omap3_pm_init(void) + + prcm_setup_regs(); + ++#ifndef CONFIG_CPU_IDLE + pm_idle = omap3_pm_idle; ++#endif + + err1: + return ret; +Index: linux-omap-2.6/drivers/cpuidle/cpuidle.c +=================================================================== +--- linux-omap-2.6.orig/drivers/cpuidle/cpuidle.c 2008-06-09 20:15:33.856303888 +0530 ++++ linux-omap-2.6/drivers/cpuidle/cpuidle.c 2008-06-09 20:15:39.570121329 +0530 +@@ -58,6 +58,11 @@ static void cpuidle_idle_call(void) + return; + } + ++#ifdef CONFIG_ARCH_OMAP3 ++ local_irq_disable(); ++ local_fiq_disable(); ++#endif ++ + /* ask the governor for the next state */ + next_state = cpuidle_curr_governor->select(dev); + if (need_resched()) +@@ -70,6 +75,11 @@ static void cpuidle_idle_call(void) + target_state->time += (unsigned long long)dev->last_residency; + target_state->usage++; + ++#ifdef CONFIG_ARCH_OMAP3 ++ local_irq_enable(); ++ local_fiq_enable(); ++#endif ++ + /* give the governor an opportunity to reflect on the outcome */ + if (cpuidle_curr_governor->reflect) + cpuidle_curr_governor->reflect(dev); + +-- +To unsubscribe from this list: send the line "unsubscribe linux-omap" in +the body of a message to majordomo@vger.kernel.org +More majordomo info at http://vger.kernel.org/majordomo-info.html + diff --git a/packages/linux/linux-omap2-git/omap3evm/0002-omap3-cpuidle.patch b/packages/linux/linux-omap2-git/omap3evm/0002-omap3-cpuidle.patch index c17c690fe1..d35fd47567 100644 --- a/packages/linux/linux-omap2-git/omap3evm/0002-omap3-cpuidle.patch +++ b/packages/linux/linux-omap2-git/omap3evm/0002-omap3-cpuidle.patch @@ -1,88 +1,88 @@ -From: "Rajendra Nayak" -To: -Subject: [PATCH 02/02] Kconfig changes -Date: Tue, 10 Jun 2008 12:39:02 +0530 - -Updates the CPUidle Kconfig - -Signed-off-by: Rajendra Nayak - ---- - arch/arm/Kconfig | 10 ++++++++++ - drivers/cpuidle/Kconfig | 28 ++++++++++++++++++++++------ - 2 files changed, 32 insertions(+), 6 deletions(-) - -Index: linux-omap-2.6/arch/arm/Kconfig -=================================================================== ---- linux-omap-2.6.orig/arch/arm/Kconfig 2008-06-10 11:43:10.790502713 +0530 -+++ linux-omap-2.6/arch/arm/Kconfig 2008-06-10 11:43:38.701604549 +0530 -@@ -954,6 +954,16 @@ config ATAGS_PROC - - endmenu - -+if (ARCH_OMAP) -+ -+menu "CPUIdle" -+ -+source "drivers/cpuidle/Kconfig" -+ -+endmenu -+ -+endif -+ - if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP || ARCH_IMX || ARCH_PXA) - - menu "CPU Frequency scaling" -Index: linux-omap-2.6/drivers/cpuidle/Kconfig -=================================================================== ---- linux-omap-2.6.orig/drivers/cpuidle/Kconfig 2008-06-10 11:43:10.790502713 +0530 -+++ linux-omap-2.6/drivers/cpuidle/Kconfig 2008-06-10 12:06:36.139332151 +0530 -@@ -1,20 +1,36 @@ -+menu "CPU idle PM support" - - config CPU_IDLE - bool "CPU idle PM support" -- default ACPI -+ default n - help - CPU idle is a generic framework for supporting software-controlled - idle processor power management. It includes modular cross-platform - governors that can be swapped during runtime. - -- If you're using an ACPI-enabled platform, you should say Y here. -+ If you're using a mobile platform that supports CPU idle PM (e.g. -+ an ACPI-capable notebook), you should say Y here. -+ -+if CPU_IDLE -+ -+comment "Governors" - - config CPU_IDLE_GOV_LADDER -- bool -+ bool "ladder" - depends on CPU_IDLE -- default y -+ default n - - config CPU_IDLE_GOV_MENU -- bool -+ bool "menu" - depends on CPU_IDLE && NO_HZ -- default y -+ default n -+ help -+ This cpuidle governor evaluates all available states and chooses the -+ deepest state that meets all of the following constraints: BM activity, -+ expected time until next timer interrupt, and last break event time -+ delta. It is designed to minimize power consumption. Currently -+ dynticks is required. -+ -+endif # CPU_IDLE -+ -+endmenu - --- -To unsubscribe from this list: send the line "unsubscribe linux-omap" in -the body of a message to majordomo@vger.kernel.org -More majordomo info at http://vger.kernel.org/majordomo-info.html - +From: "Rajendra Nayak" +To: +Subject: [PATCH 02/02] Kconfig changes +Date: Tue, 10 Jun 2008 12:39:02 +0530 + +Updates the CPUidle Kconfig + +Signed-off-by: Rajendra Nayak + +--- + arch/arm/Kconfig | 10 ++++++++++ + drivers/cpuidle/Kconfig | 28 ++++++++++++++++++++++------ + 2 files changed, 32 insertions(+), 6 deletions(-) + +Index: linux-omap-2.6/arch/arm/Kconfig +=================================================================== +--- linux-omap-2.6.orig/arch/arm/Kconfig 2008-06-10 11:43:10.790502713 +0530 ++++ linux-omap-2.6/arch/arm/Kconfig 2008-06-10 11:43:38.701604549 +0530 +@@ -954,6 +954,16 @@ config ATAGS_PROC + + endmenu + ++if (ARCH_OMAP) ++ ++menu "CPUIdle" ++ ++source "drivers/cpuidle/Kconfig" ++ ++endmenu ++ ++endif ++ + if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP || ARCH_IMX || ARCH_PXA) + + menu "CPU Frequency scaling" +Index: linux-omap-2.6/drivers/cpuidle/Kconfig +=================================================================== +--- linux-omap-2.6.orig/drivers/cpuidle/Kconfig 2008-06-10 11:43:10.790502713 +0530 ++++ linux-omap-2.6/drivers/cpuidle/Kconfig 2008-06-10 12:06:36.139332151 +0530 +@@ -1,20 +1,36 @@ ++menu "CPU idle PM support" + + config CPU_IDLE + bool "CPU idle PM support" +- default ACPI ++ default n + help + CPU idle is a generic framework for supporting software-controlled + idle processor power management. It includes modular cross-platform + governors that can be swapped during runtime. + +- If you're using an ACPI-enabled platform, you should say Y here. ++ If you're using a mobile platform that supports CPU idle PM (e.g. ++ an ACPI-capable notebook), you should say Y here. ++ ++if CPU_IDLE ++ ++comment "Governors" + + config CPU_IDLE_GOV_LADDER +- bool ++ bool "ladder" + depends on CPU_IDLE +- default y ++ default n + + config CPU_IDLE_GOV_MENU +- bool ++ bool "menu" + depends on CPU_IDLE && NO_HZ +- default y ++ default n ++ help ++ This cpuidle governor evaluates all available states and chooses the ++ deepest state that meets all of the following constraints: BM activity, ++ expected time until next timer interrupt, and last break event time ++ delta. It is designed to minimize power consumption. Currently ++ dynticks is required. ++ ++endif # CPU_IDLE ++ ++endmenu + +-- +To unsubscribe from this list: send the line "unsubscribe linux-omap" in +the body of a message to majordomo@vger.kernel.org +More majordomo info at http://vger.kernel.org/majordomo-info.html + -- cgit v1.2.3