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basic pxa support; likely broken

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SVN-Revision: 6232
This commit is contained in:
Mike Baker 2007-01-31 00:11:27 +00:00
parent 9fffc68101
commit 9ccb86264a
8 changed files with 2816 additions and 0 deletions
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20
target/linux/pxa-2.6/Makefile Normal file
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#
# Copyright (C) 2006 OpenWrt.org
#
# This is free software, licensed under the GNU General Public License v2.
# See /LICENSE for more information.
#
include $(TOPDIR)/rules.mk
ARCH:=arm
BOARD:=pxa
BOARDNAME:=PXA
FEATURES:=jffs2 broken
define Target/Description
Stub for boards based on intel PXA
endef
include $(INCLUDE_DIR)/kernel-build.mk
$(eval $(call BuildKernel))

1214
target/linux/pxa-2.6/config Normal file
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1
target/linux/pxa-2.6/image Symbolic link
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../generic-2.6/image/

533
target/linux/pxa-2.6/patches/000-cpufreq.patch Normal file
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diff -Nurbw linux-2.6.17/arch/arm/Kconfig linux-2.6.17-patched/arch/arm/Kconfig
--- linux-2.6.17/arch/arm/Kconfig 2006-06-17 18:49:35.000000000 -0700
+++ linux-2.6.17-patched/arch/arm/Kconfig 2006-09-21 14:57:02.000000000 -0700
@@ -656,7 +656,7 @@
endmenu
-if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP1)
+if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP1 || ARCH_PXA)
menu "CPU Frequency scaling"
@@ -685,6 +685,13 @@
endmenu
+config CPU_FREQ_PXA
+ bool
+ depends on CPU_FREQ && ARCH_PXA
+ default y
+ select CPU_FREQ_DEFAULT_GOV_USERSPACE
+ select CPU_FREQ_TABLE
+
endif
menu "Floating point emulation"
diff -Nurbw linux-2.6.17/arch/arm/mach-pxa/cpu-pxa.c linux-2.6.17-patched/arch/arm/mach-pxa/cpu-pxa.c
--- linux-2.6.17/arch/arm/mach-pxa/cpu-pxa.c 1969-12-31 16:00:00.000000000 -0800
+++ linux-2.6.17-patched/arch/arm/mach-pxa/cpu-pxa.c 2006-09-21 14:57:02.000000000 -0700
@@ -0,0 +1,324 @@
+/*
+ * linux/arch/arm/mach-pxa/cpu-pxa.c
+ *
+ * Copyright (C) 2002,2003 Intrinsyc Software
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * History:
+ * 31-Jul-2002 : Initial version [FB]
+ * 29-Jan-2003 : added PXA255 support [FB]
+ * 20-Apr-2003 : ported to v2.5 (Dustin McIntire, Sensoria Corp.)
+ *
+ * Note:
+ * This driver may change the memory bus clock rate, but will not do any
+ * platform specific access timing changes... for example if you have flash
+ * memory connected to CS0, you will need to register a platform specific
+ * notifier which will adjust the memory access strobes to maintain a
+ * minimum strobe width.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/init.h>
+#include <linux/cpufreq.h>
+
+#include <asm/hardware.h>
+#include <asm/arch/pxa-regs.h>
+
+#undef DEBUG
+
+#ifdef DEBUG
+ static unsigned int freq_debug = DEBUG;
+ module_param(freq_debug, int, 0);
+ MODULE_PARM_DESC(freq_debug, "Set the debug messages to on=1/off=0");
+#else
+ #define freq_debug 0
+#endif
+
+typedef struct
+{
+ unsigned int khz;
+ unsigned int membus;
+ unsigned int cccr;
+ unsigned int div2;
+} pxa_freqs_t;
+
+/* Define the refresh period in mSec for the SDRAM and the number of rows */
+#define SDRAM_TREF 64 /* standard 64ms SDRAM */
+#define SDRAM_ROWS 2048 /* 64MB=8192 32MB=4096 */
+#define MDREFR_DRI(x) ((x*SDRAM_TREF)/(SDRAM_ROWS*32))
+
+#define CCLKCFG_TURBO 0x1
+#define CCLKCFG_FCS 0x2
+#define PXA25x_MIN_FREQ 99533
+#define PXA25x_MAX_FREQ 530842
+#define MDREFR_DB2_MASK (MDREFR_K2DB2 | MDREFR_K1DB2)
+#define MDREFR_DRI_MASK 0xFFF
+
+
+/* Use the run mode frequencies for the CPUFREQ_POLICY_PERFORMANCE policy */
+static pxa_freqs_t pxa255_run_freqs[] =
+{
+ /* CPU MEMBUS CCCR DIV2*/
+ { 99533, 99533, 0x121, 1}, /* run= 99, turbo= 99, PXbus=50, SDRAM=50 */
+ {132710, 132710, 0x123, 1}, /* run=133, turbo=133, PXbus=66, SDRAM=66 */
+ {199066, 99533, 0x141, 0}, /* run=199, turbo=199, PXbus=99, SDRAM=99 */
+ {265421, 132710, 0x143, 0}, /* run=265, turbo=265, PXbus=133, SDRAM=133 */
+ {331776, 165888, 0x145, 1}, /* run=331, turbo=331, PXbus=166, SDRAM=83 */
+ {398131, 99533, 0x161, 0}, /* run=398, turbo=398, PXbus=99, SDRAM=99 */
+ {398131, 132710, 0x1c3, 0}, /* run=265, turbo=398, PXbus=133, SDRAM=133 */
+ {530842, 132710, 0x163, 0}, /* run=531, turbo=531, PXbus=133, SDRAM=133 */
+ {0,}
+};
+#define NUM_RUN_FREQS (sizeof(pxa255_run_freqs)/sizeof(pxa_freqs_t))
+
+static struct cpufreq_frequency_table pxa255_run_freq_table[NUM_RUN_FREQS+1];
+
+/* Use the turbo mode frequencies for the CPUFREQ_POLICY_POWERSAVE policy */
+static pxa_freqs_t pxa255_turbo_freqs[] =
+{
+ /* CPU MEMBUS CCCR DIV2*/
+ { 99533, 99533, 0x121, 1}, /* run=99, turbo= 99, PXbus=99, SDRAM=50 */
+ {149299, 99533, 0x1a1, 0}, /* run=99, turbo=149, PXbus=99, SDRAM=99 */
+ {199066, 99533, 0x221, 0}, /* run=99, turbo=199, PXbus=99, SDRAM=99 */
+ {298598, 99533, 0x321, 0}, /* run=99, turbo=299, PXbus=99, SDRAM=99 */
+ {398131, 99533, 0x241, 1}, /* run=199, turbo=398, PXbus=99, SDRAM=50 */
+ {0,}
+};
+#define NUM_TURBO_FREQS (sizeof(pxa255_turbo_freqs)/sizeof(pxa_freqs_t))
+
+static struct cpufreq_frequency_table pxa255_turbo_freq_table[NUM_TURBO_FREQS+1];
+
+extern unsigned get_clk_frequency_khz(int info);
+
+/* find a valid frequency point */
+static int pxa_verify_policy(struct cpufreq_policy *policy)
+{
+ int ret;
+ struct cpufreq_frequency_table *pxa_freqs_table;
+
+ if(policy->policy == CPUFREQ_POLICY_PERFORMANCE) {
+ pxa_freqs_table = pxa255_run_freq_table;
+ } else if (policy->policy == CPUFREQ_POLICY_POWERSAVE) {
+ pxa_freqs_table = pxa255_turbo_freq_table;
+ } else {
+ printk("CPU PXA: Unknown policy found. "
+ "Using CPUFREQ_POLICY_PERFORMANCE\n");
+ pxa_freqs_table = pxa255_run_freq_table;
+ }
+ ret=cpufreq_frequency_table_verify(policy, pxa_freqs_table);
+
+ if(freq_debug) {
+ printk("Verified CPU policy: %dKhz min to %dKhz max\n",
+ policy->min, policy->max);
+ }
+
+ return ret;
+}
+
+static int pxa_set_target(struct cpufreq_policy *policy,
+ unsigned int target_freq,
+ unsigned int relation)
+{
+ int idx;
+ cpumask_t cpus_allowed;
+ int cpu = policy->cpu;
+ struct cpufreq_freqs freqs;
+ pxa_freqs_t *pxa_freq_settings;
+ struct cpufreq_frequency_table *pxa_freqs_table;
+ unsigned long flags;
+ unsigned int unused;
+ unsigned int preset_mdrefr, postset_mdrefr;
+ void *ramstart;
+
+ /*
+ * Save this threads cpus_allowed mask.
+ */
+ cpus_allowed = current->cpus_allowed;
+
+ /*
+ * Bind to the specified CPU. When this call returns,
+ * we should be running on the right CPU.
+ */
+ set_cpus_allowed(current, cpumask_of_cpu(cpu));
+ BUG_ON(cpu != smp_processor_id());
+
+ /* Get the current policy */
+ if(policy->policy == CPUFREQ_POLICY_PERFORMANCE) {
+ pxa_freq_settings = pxa255_run_freqs;
+ pxa_freqs_table = pxa255_run_freq_table;
+ }else if (policy->policy == CPUFREQ_POLICY_POWERSAVE) {
+ pxa_freq_settings = pxa255_turbo_freqs;
+ pxa_freqs_table = pxa255_turbo_freq_table;
+ }else {
+ printk("CPU PXA: Unknown policy found. "
+ "Using CPUFREQ_POLICY_PERFORMANCE\n");
+ pxa_freq_settings = pxa255_run_freqs;
+ pxa_freqs_table = pxa255_run_freq_table;
+ }
+
+ /* Lookup the next frequency */
+ if (cpufreq_frequency_table_target(policy, pxa_freqs_table,
+ target_freq, relation, &idx)) {
+ return -EINVAL;
+ }
+
+ freqs.old = policy->cur;
+ freqs.new = pxa_freq_settings[idx].khz;
+ freqs.cpu = policy->cpu;
+ if(freq_debug) {
+ printk(KERN_INFO "Changing CPU frequency to %d Mhz, (SDRAM %d Mhz)\n",
+ freqs.new/1000, (pxa_freq_settings[idx].div2) ?
+ (pxa_freq_settings[idx].membus/2000) :
+ (pxa_freq_settings[idx].membus/1000));
+ }
+
+ ramstart = phys_to_virt(0xa0000000);
+
+ /*
+ * Tell everyone what we're about to do...
+ * you should add a notify client with any platform specific
+ * Vcc changing capability
+ */
+ cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
+
+ /* Calculate the next MDREFR. If we're slowing down the SDRAM clock
+ * we need to preset the smaller DRI before the change. If we're speeding
+ * up we need to set the larger DRI value after the change.
+ */
+ preset_mdrefr = postset_mdrefr = MDREFR;
+ if((MDREFR & MDREFR_DRI_MASK) > MDREFR_DRI(pxa_freq_settings[idx].membus)) {
+ preset_mdrefr = (preset_mdrefr & ~MDREFR_DRI_MASK) |
+ MDREFR_DRI(pxa_freq_settings[idx].membus);
+ }
+ postset_mdrefr = (postset_mdrefr & ~MDREFR_DRI_MASK) |
+ MDREFR_DRI(pxa_freq_settings[idx].membus);
+
+ /* If we're dividing the memory clock by two for the SDRAM clock, this
+ * must be set prior to the change. Clearing the divide must be done
+ * after the change.
+ */
+ if(pxa_freq_settings[idx].div2) {
+ preset_mdrefr |= MDREFR_DB2_MASK;
+ postset_mdrefr |= MDREFR_DB2_MASK;
+ } else {
+ postset_mdrefr &= ~MDREFR_DB2_MASK;
+ }
+
+ local_irq_save(flags);
+
+ /* Set new the CCCR */
+ CCCR = pxa_freq_settings[idx].cccr;
+
+ __asm__ __volatile__(" \
+ ldr r4, [%1] ; /* load MDREFR */ \
+ b 2f ; \
+ .align 5 ; \
+1: \
+ str %4, [%1] ; /* preset the MDREFR */ \
+ mcr p14, 0, %2, c6, c0, 0 ; /* set CCLKCFG[FCS] */ \
+ str %5, [%1] ; /* postset the MDREFR */ \
+ \
+ b 3f ; \
+2: b 1b ; \
+3: nop ; \
+ "
+ : "=&r" (unused)
+ : "r" (&MDREFR), "r" (CCLKCFG_TURBO|CCLKCFG_FCS), "r" (ramstart), \
+ "r" (preset_mdrefr), "r" (postset_mdrefr)
+ : "r4", "r5");
+ local_irq_restore(flags);
+
+ /*
+ * Restore the CPUs allowed mask.
+ */
+ set_cpus_allowed(current, cpus_allowed);
+
+ /*
+ * Tell everyone what we've just done...
+ * you should add a notify client with any platform specific
+ * SDRAM refresh timer adjustments
+ */
+ cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
+
+ return 0;
+}
+
+static int pxa_cpufreq_init(struct cpufreq_policy *policy)
+{
+ cpumask_t cpus_allowed;
+ unsigned int cpu = policy->cpu;
+ int i;
+
+ cpus_allowed = current->cpus_allowed;
+
+ set_cpus_allowed(current, cpumask_of_cpu(cpu));
+ BUG_ON(cpu != smp_processor_id());
+
+ /* set default policy and cpuinfo */
+ policy->governor = CPUFREQ_DEFAULT_GOVERNOR;
+ policy->policy = CPUFREQ_POLICY_PERFORMANCE;
+ policy->cpuinfo.max_freq = PXA25x_MAX_FREQ;
+ policy->cpuinfo.min_freq = PXA25x_MIN_FREQ;
+ policy->cpuinfo.transition_latency = 1000; /* FIXME: 1 ms, assumed */
+ policy->cur = get_clk_frequency_khz(0); /* current freq */
+ policy->min = policy->max = policy->cur;
+
+ /* Generate the run cpufreq_frequency_table struct */
+ for(i=0;i<NUM_RUN_FREQS;i++) {
+ pxa255_run_freq_table[i].frequency = pxa255_run_freqs[i].khz;
+ pxa255_run_freq_table[i].index = i;
+ }
+ pxa255_run_freq_table[i].frequency = CPUFREQ_TABLE_END;
+ /* Generate the turbo cpufreq_frequency_table struct */
+ for(i=0;i<NUM_TURBO_FREQS;i++) {
+ pxa255_turbo_freq_table[i].frequency = pxa255_turbo_freqs[i].khz;
+ pxa255_turbo_freq_table[i].index = i;
+ }
+ pxa255_turbo_freq_table[i].frequency = CPUFREQ_TABLE_END;
+
+ set_cpus_allowed(current, cpus_allowed);
+ printk(KERN_INFO "PXA CPU frequency change support initialized\n");
+
+ return 0;
+}
+
+static struct cpufreq_driver pxa_cpufreq_driver = {
+ .verify = pxa_verify_policy,
+ .target = pxa_set_target,
+ .init = pxa_cpufreq_init,
+ .name = "PXA25x",
+};
+
+static int __init pxa_cpu_init(void)
+{
+ return cpufreq_register_driver(&pxa_cpufreq_driver);
+}
+
+static void __exit pxa_cpu_exit(void)
+{
+ cpufreq_unregister_driver(&pxa_cpufreq_driver);
+}
+
+
+MODULE_AUTHOR ("Intrinsyc Software Inc.");
+MODULE_DESCRIPTION ("CPU frequency changing driver for the PXA architecture");
+MODULE_LICENSE("GPL");
+module_init(pxa_cpu_init);
+module_exit(pxa_cpu_exit);
+
diff -Nurbw linux-2.6.17/arch/arm/mach-pxa/Makefile linux-2.6.17-patched/arch/arm/mach-pxa/Makefile
--- linux-2.6.17/arch/arm/mach-pxa/Makefile 2006-09-21 15:11:33.000000000 -0700
+++ linux-2.6.17-patched/arch/arm/mach-pxa/Makefile 2006-09-21 14:57:02.000000000 -0700
@@ -30,5 +30,6 @@
obj-$(CONFIG_PM) += pm.o sleep.o
obj-$(CONFIG_PXA_SSP) += ssp.o
+obj-$(CONFIG_CPU_FREQ) += cpu-pxa.o
ifeq ($(CONFIG_PXA27x),y)
obj-$(CONFIG_PM) += standby.o
diff -Nurbw linux-2.6.17/Documentation/cpu-freq/user-guide.txt linux-2.6.17-patched/Documentation/cpu-freq/user-guide.txt
--- linux-2.6.17/Documentation/cpu-freq/user-guide.txt 2006-06-17 18:49:35.000000000 -0700
+++ linux-2.6.17-patched/Documentation/cpu-freq/user-guide.txt 2006-09-21 14:57:02.000000000 -0700
@@ -18,7 +18,7 @@
Contents:
---------
1. Supported Architectures and Processors
-1.1 ARM
+1.1 ARM, PXA
1.2 x86
1.3 sparc64
1.4 ppc
@@ -37,14 +37,15 @@
1. Supported Architectures and Processors
=========================================
-1.1 ARM
--------
+1.1 ARM, PXA
+------------
The following ARM processors are supported by cpufreq:
ARM Integrator
ARM-SA1100
ARM-SA1110
+Intel PXA
1.2 x86
diff -Nurbw linux-2.6.17/drivers/cpufreq/Kconfig linux-2.6.17-patched/drivers/cpufreq/Kconfig
--- linux-2.6.17/drivers/cpufreq/Kconfig 2006-06-17 18:49:35.000000000 -0700
+++ linux-2.6.17-patched/drivers/cpufreq/Kconfig 2006-09-21 15:06:12.000000000 -0700
@@ -46,13 +46,9 @@
This will show detail CPU frequency translation table in sysfs file
system
-# Note that it is not currently possible to set the other governors (such as ondemand)
-# as the default, since if they fail to initialise, cpufreq will be
-# left in an undefined state.
-
choice
prompt "Default CPUFreq governor"
- default CPU_FREQ_DEFAULT_GOV_USERSPACE if CPU_FREQ_SA1100 || CPU_FREQ_SA1110
+ default CPU_FREQ_DEFAULT_GOV_USERSPACE if CPU_FREQ_SA1100 || CPU_FREQ_SA1110 || CPU_FREQ_PXA
default CPU_FREQ_DEFAULT_GOV_PERFORMANCE
help
This option sets which CPUFreq governor shall be loaded at
@@ -66,6 +62,14 @@
the frequency statically to the highest frequency supported by
the CPU.
+config CPU_FREQ_DEFAULT_GOV_POWERSAVE
+ bool "powersave"
+ select CPU_FREQ_GOV_POWERSAVE
+ help
+ Use the CPUFreq governor 'powersave' as default. This sets
+ the frequency statically to the lowest frequency supported by
+ the CPU.
+
config CPU_FREQ_DEFAULT_GOV_USERSPACE
bool "userspace"
select CPU_FREQ_GOV_USERSPACE
@@ -75,6 +79,23 @@
program shall be able to set the CPU dynamically without having
to enable the userspace governor manually.
+config CPU_FREQ_DEFAULT_GOV_ONDEMAND
+ bool "ondemand"
+ select CPU_FREQ_GOV_ONDEMAND
+ help
+ Use the CPUFreq governor 'ondemand' as default. This sets
+ the frequency dynamically based on CPU load, throttling up
+ and down as necessary.
+
+config CPU_FREQ_DEFAULT_GOV_CONSERVATIVE
+ bool "conservative"
+ select CPU_FREQ_GOV_CONSERVATIVE
+ help
+ Use the CPUFreq governor 'conservative' as default. This sets
+ the frequency dynamically based on CPU load, throttling up
+ and down as necessary. The frequency is gracefully increased
+ and decreased rather than jumping to 100% when speed is required.
+
endchoice
config CPU_FREQ_GOV_PERFORMANCE
diff -Nurbw linux-2.6.17/include/linux/cpufreq.h linux-2.6.17-patched/include/linux/cpufreq.h
--- linux-2.6.17/include/linux/cpufreq.h 2006-06-17 18:49:35.000000000 -0700
+++ linux-2.6.17-patched/include/linux/cpufreq.h 2006-09-21 15:08:35.000000000 -0700
@@ -276,9 +276,18 @@
#ifdef CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE
extern struct cpufreq_governor cpufreq_gov_performance;
#define CPUFREQ_DEFAULT_GOVERNOR &cpufreq_gov_performance
+#elif defined(CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE)
+extern struct cpufreq_governor cpufreq_gov_powersave;
+#define CPUFREQ_DEFAULT_GOVERNOR &cpufreq_gov_powersave
#elif defined(CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE)
extern struct cpufreq_governor cpufreq_gov_userspace;
#define CPUFREQ_DEFAULT_GOVERNOR &cpufreq_gov_userspace
+#elif defined(CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND)
+extern struct cpufreq_governor cpufreq_gov_ondemand;
+#define CPUFREQ_DEFAULT_GOVERNOR &cpufreq_gov_ondemand;
+#elif defined(CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE)
+extern struct cpufreq_governor cpufreq_gov_conservative;
+#define CPUFREQ_DEFAULT_GOVERNOR &cpufreq_gov_conservative;
#endif
diff -Nubrw --exclude='.*.o.cmd' linux-2.6.17/drivers/cpufreq/cpufreq_conservative.c linux-2.6.17-patched/drivers/cpufreq/cpufreq_conservative.c
--- linux-2.6.17/drivers/cpufreq/cpufreq_conservative.c 2006-09-21 15:26:46.000000000 -0700
+++ linux-2.6.17-patched/drivers/cpufreq/cpufreq_conservative.c 2006-06-17 18:49:35.000000000 -0700
@@ -529,7 +529,7 @@
return 0;
}
-static struct cpufreq_governor cpufreq_gov_dbs = {
+struct cpufreq_governor cpufreq_gov_conservative = {
.name = "conservative",
.governor = cpufreq_governor_dbs,
.owner = THIS_MODULE,
@@ -537,7 +537,7 @@
static int __init cpufreq_gov_dbs_init(void)
{
- return cpufreq_register_governor(&cpufreq_gov_dbs);
+ return cpufreq_register_governor(&cpufreq_gov_conservative);
}
static void __exit cpufreq_gov_dbs_exit(void)
@@ -545,7 +545,7 @@
/* Make sure that the scheduled work is indeed not running */
flush_scheduled_work();
- cpufreq_unregister_governor(&cpufreq_gov_dbs);
+ cpufreq_unregister_governor(&cpufreq_gov_conservative);
}
diff -Nubrw --exclude='.*.o.cmd' linux-2.6.17/drivers/cpufreq/cpufreq_ondemand.c linux-2.6.17-patched/drivers/cpufreq/cpufreq_ondemand.c
--- linux-2.6.17/drivers/cpufreq/cpufreq_ondemand.c 2006-06-17 18:49:35.000000000 -0700
+++ linux-2.6.17-patched/drivers/cpufreq/cpufreq_ondemand.c 2006-09-27 14:00:15.000000000 -0700
@@ -484,7 +484,7 @@
return 0;
}
-static struct cpufreq_governor cpufreq_gov_dbs = {
+struct cpufreq_governor cpufreq_gov_ondemand = {
.name = "ondemand",
.governor = cpufreq_governor_dbs,
.owner = THIS_MODULE,
@@ -492,7 +492,7 @@
static int __init cpufreq_gov_dbs_init(void)
{
- return cpufreq_register_governor(&cpufreq_gov_dbs);
+ return cpufreq_register_governor(&cpufreq_gov_ondemand);
}
static void __exit cpufreq_gov_dbs_exit(void)
@@ -504,7 +504,7 @@
destroy_workqueue(dbs_workq);
}
- cpufreq_unregister_governor(&cpufreq_gov_dbs);
+ cpufreq_unregister_governor(&cpufreq_gov_ondemand);
}

869
target/linux/pxa-2.6/patches/001-pm.patch Normal file
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@ -0,0 +1,869 @@
diff -NurbwB linux-2.6.17/arch/arm/mach-pxa/pm.c linux-2.6.17-patched/arch/arm/mach-pxa/pm.c
--- linux-2.6.17/arch/arm/mach-pxa/pm.c 2006-06-17 18:49:35.000000000 -0700
+++ linux-2.6.17-patched/arch/arm/mach-pxa/pm.c 2006-09-11 10:58:41.000000000 -0700
@@ -10,35 +10,50 @@
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License.
*/
+
#include <linux/config.h>
#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/suspend.h>
+#include <linux/pm.h>
+#include <linux/slab.h>
+#include <linux/sched.h>
+#include <linux/interrupt.h>
+#include <linux/sysctl.h>
#include <linux/errno.h>
-#include <linux/time.h>
#include <asm/hardware.h>
#include <asm/memory.h>
#include <asm/system.h>
-#include <asm/arch/pm.h>
+#include <asm/leds.h>
+#include <asm/uaccess.h>
#include <asm/arch/pxa-regs.h>
#include <asm/arch/lubbock.h>
#include <asm/mach/time.h>
+/**/
+#include <linux/module.h>
+/**/
+//kirti
+#include <linux/delay.h>
+//kirti~
/*
* Debug macros
*/
-#undef DEBUG
+#define DEBUG
+
+extern void pxa_cpu_suspend(void);
+extern void pxa_cpu_resume(void);
+
+int pm_pwronoff;
+/*Angelia Additions */
+int pm_pedr=0;
+EXPORT_SYMBOL(pm_pwronoff);
+EXPORT_SYMBOL(pm_pedr);
+
#define SAVE(x) sleep_save[SLEEP_SAVE_##x] = x
#define RESTORE(x) x = sleep_save[SLEEP_SAVE_##x]
-#define RESTORE_GPLEVEL(n) do { \
- GPSR##n = sleep_save[SLEEP_SAVE_GPLR##n]; \
- GPCR##n = ~sleep_save[SLEEP_SAVE_GPLR##n]; \
-} while (0)
-
/*
* List of global PXA peripheral registers to preserve.
* More ones like CP and general purpose register values are preserved
@@ -46,97 +61,405 @@
*/
enum { SLEEP_SAVE_START = 0,
- SLEEP_SAVE_GPLR0, SLEEP_SAVE_GPLR1, SLEEP_SAVE_GPLR2, SLEEP_SAVE_GPLR3,
- SLEEP_SAVE_GPDR0, SLEEP_SAVE_GPDR1, SLEEP_SAVE_GPDR2, SLEEP_SAVE_GPDR3,
- SLEEP_SAVE_GRER0, SLEEP_SAVE_GRER1, SLEEP_SAVE_GRER2, SLEEP_SAVE_GRER3,
- SLEEP_SAVE_GFER0, SLEEP_SAVE_GFER1, SLEEP_SAVE_GFER2, SLEEP_SAVE_GFER3,
- SLEEP_SAVE_PGSR0, SLEEP_SAVE_PGSR1, SLEEP_SAVE_PGSR2, SLEEP_SAVE_PGSR3,
-
- SLEEP_SAVE_GAFR0_L, SLEEP_SAVE_GAFR0_U,
- SLEEP_SAVE_GAFR1_L, SLEEP_SAVE_GAFR1_U,
- SLEEP_SAVE_GAFR2_L, SLEEP_SAVE_GAFR2_U,
- SLEEP_SAVE_GAFR3_L, SLEEP_SAVE_GAFR3_U,
+ SLEEP_SAVE_OSCR, SLEEP_SAVE_OIER,
+ SLEEP_SAVE_OSMR0, SLEEP_SAVE_OSMR1, SLEEP_SAVE_OSMR2, SLEEP_SAVE_OSMR3,
- SLEEP_SAVE_PSTR,
+ SLEEP_SAVE_GPDR0, SLEEP_SAVE_GPDR1, SLEEP_SAVE_GPDR2,
+ SLEEP_SAVE_GRER0, SLEEP_SAVE_GRER1, SLEEP_SAVE_GRER2,
+ SLEEP_SAVE_GFER0, SLEEP_SAVE_GFER1, SLEEP_SAVE_GFER2,
+ SLEEP_SAVE_GAFR0_L, SLEEP_SAVE_GAFR1_L, SLEEP_SAVE_GAFR2_L,
+ SLEEP_SAVE_GAFR0_U, SLEEP_SAVE_GAFR1_U, SLEEP_SAVE_GAFR2_U,
+
+ SLEEP_SAVE_FFIER, SLEEP_SAVE_FFLCR, SLEEP_SAVE_FFMCR,
+ SLEEP_SAVE_FFSPR, SLEEP_SAVE_FFISR,
+ SLEEP_SAVE_FFDLL, SLEEP_SAVE_FFDLH,SLEEP_SAVE_FFFCR,
+
+ SLEEP_SAVE_STIER, SLEEP_SAVE_STLCR, SLEEP_SAVE_STMCR,
+ SLEEP_SAVE_STSPR, SLEEP_SAVE_STISR,
+ SLEEP_SAVE_STDLL, SLEEP_SAVE_STDLH,
+
+ SLEEP_SAVE_BTIER, SLEEP_SAVE_BTLCR, SLEEP_SAVE_BTMCR,
+ SLEEP_SAVE_BTSPR, SLEEP_SAVE_BTISR,
+ SLEEP_SAVE_BTDLL, SLEEP_SAVE_BTDLH,
SLEEP_SAVE_ICMR,
SLEEP_SAVE_CKEN,
-#ifdef CONFIG_PXA27x
- SLEEP_SAVE_MDREFR,
- SLEEP_SAVE_PWER, SLEEP_SAVE_PCFR, SLEEP_SAVE_PRER,
- SLEEP_SAVE_PFER, SLEEP_SAVE_PKWR,
-#endif
+ SLEEP_SAVE_LCCR0, SLEEP_SAVE_LCCR1, SLEEP_SAVE_LCCR2,SLEEP_SAVE_LCCR3,
+ SLEEP_SAVE_TMEDCR, SLEEP_SAVE_FDADR0, SLEEP_SAVE_FSADR0,SLEEP_SAVE_FIDR0,SLEEP_SAVE_FDADR1,
+ SLEEP_SAVE_LDCMD0,
+
+ SLEEP_SAVE_NSSCR0,SLEEP_SAVE_NSSCR1,SLEEP_SAVE_NSSSR,SLEEP_SAVE_NSSITR,SLEEP_SAVE_NSSDR,
+ SLEEP_SAVE_NSSTO,SLEEP_SAVE_NSSPSP,
- SLEEP_SAVE_CKSUM,
+ SLEEP_SAVE_CKSUM,
SLEEP_SAVE_SIZE
};
+/**/
+#define UART_DTR 1
+#define UART_RTS 2
+
+/**/
-int pxa_pm_enter(suspend_state_t state)
+int pm_do_suspend(void)
{
unsigned long sleep_save[SLEEP_SAVE_SIZE];
unsigned long checksum = 0;
- struct timespec delta, rtc;
int i;
+ int valbefore,valafter,valafter1;
+ int gpsr0,gpsr1,gpsr2;
extern void pxa_cpu_pm_enter(suspend_state_t state);
-#ifdef CONFIG_IWMMXT
- /* force any iWMMXt context to ram **/
- iwmmxt_task_disable(NULL);
-#endif
+ // YoKu 16Feb06 GPIO Changed ----->
+
+ PGSR2 |= GPIO_bit(78);
+/* if(GPLR2 & GPIO_bit(78)) // LCD Reset Pin
+ PGSR2 |= GPIO_bit(78);
+ else
+ PGSR2 &= ~GPIO_bit(78); */
+ GPDR0 &= ~GPIO_bit(0);
+ GPDR0 &= ~GPIO_bit(1);
+ GPDR0 &= ~GPIO_bit(3); //Tushar: 20 apr GPIO3 configured as input
+ GPDR0 &= ~GPIO_bit(2);
+// GPDR0 &= ~GPIO_bit(5);
+// GPDR0 &= ~GPIO_bit(6);
+// GPDR0 &= ~GPIO_bit(7);
+// GPDR0 &= ~GPIO_bit(8);
+
+
+// KeyCol pin Status in sleep mode
+ PGSR0 &= ~GPIO_bit(9); //19
+ PGSR0 &= ~GPIO_bit(10); //20
+ PGSR0 &= ~GPIO_bit(11); //21
+ PGSR0 &= ~GPIO_bit(12); //22
+ PGSR0 &= ~GPIO_bit(13); //23
+ PGSR0 &= ~GPIO_bit(14); //24
+
+ printk("KER_PM: Setting up wakeup sources 26May06\n");
+
+ // KeyPad
+ //printk("KER_PM: Uncommented key pad wakeup sources\n");
+ PWER |= GPIO_bit(5); //11
+ PWER |= GPIO_bit(6); //12
+ PWER |= GPIO_bit(7); //13
+ PWER |= GPIO_bit(8); //14
+ PFER |= GPIO_bit(5); //11
+ PFER |= GPIO_bit(6); //12
+ PFER |= GPIO_bit(7); //13
+ PFER |= GPIO_bit(8); //14
+ PRER |= GPIO_bit(5); //11
+ PRER |= GPIO_bit(6); //12
+ PRER |= GPIO_bit(7); //13
+ PRER |= GPIO_bit(8); //14
+
+ // USB
+ PWER |= GPIO_bit(3); //6
+ PFER |= GPIO_bit(3); //6
+ PRER |= GPIO_bit(3); //6
+
+ // PMU
+ PWER |= GPIO_bit(2); //4
+ PFER |= GPIO_bit(2); //4
+ PRER |= GPIO_bit(2); //4
+
+ // Anup : GSM RI
+ PWER |= GPIO_bit(0); //0
+ PFER |= GPIO_bit(0); //0
+ PRER |= GPIO_bit(0); //0
+ // anup prashant : for gsm reset problem 19 may 2006
+ //GPDR0 |= GPIO_bit(18); YoKu Commented this line, GPIO18 should be i/p pin to avoid GSM Reset pulse
+ PGSR0 |= GPIO_bit(18); // GSM reset pin
+ PGSR0 |= GPIO_bit(0); //
+ PGSR1 |= GPIO_bit(38); // commneted .18 apr
+ // <----- YoKu
+
+ // YoKu ----->
+ // When exiting from sleep mode, 10us Low pulse comes on GSM Reset and Pwr pin
+ // to avoid this configure GPIO 18,80 as input pins before going to sleep mode
+ GPDR0 &= ~GPIO_bit(18);
+ //GPDR2 &= ~GPIO_bit(80);
+ // <----- YoKu
+
+ //kirti for RTC
+ PWER |= PWER_RTC;
+ //kirti cli();
+ local_irq_disable();
+ //kirti clf();
+ local_fiq_disable();
+ leds_event(led_stop);
+
+ /* Put Current time into RCNR */
+ RCNR = xtime.tv_sec;
- /* preserve current time */
- rtc.tv_sec = RCNR;
- rtc.tv_nsec = 0;
- save_time_delta(&delta, &rtc);
+ printk("11May2006 KERR: pgsr0=0x%08x pgsr1=0x%08x pgsr2= 0x%08x\n",PGSR0,PGSR1,PGSR2);
+ printk("KER_PM_DELAY: SSCR Going to Sleep at RCNR =%d\n\n\n\n\n\n",RCNR);
+
+ /*
+ * Temporary solution. This won't be necessary once
+ * we move pxa support into the serial driver
+ * Save the FF UART
+ */
+
+ // Anup : commented for power saving mode problem
+ printk("\nPM: Why doesnt it prnt?? 26May06\n");
+ printk("\nPM : GSM Sleep Mode enabled");
+
+
+ FFMCR &= ~UART_RTS;
+ udelay(2000);
+ udelay(2000);
+ FFMCR &= ~UART_DTR ;
+ udelay(2000);
+
+ udelay(2000);
+ // rupali
+ // Anup : Do not check here
+/* if(!pm_pwronoff)
+ {
+ printk("\nPM : Modem Control Register = %x " , FFMCR);
+ while( FFMSR & 0x00000020)
+ {
+ printk("\nPM : FFFSR = %x " , FFMSR);
+ }
+ } */
+ udelay(2000);
+
+//Tushar: 19 apr
+// NSSCR0 &= 0xFFFFFF7F;
+// printk("\nPM: NSSCR0 = %x" ,NSSCR0 );
+
+ SAVE(FFIER);
+ SAVE(FFLCR);
+ SAVE(FFMCR);
+ SAVE(FFSPR);
+ SAVE(FFISR);
+ FFLCR |= 0x80;
+ SAVE(FFDLL);
+ SAVE(FFDLH);
+ SAVE(FFFCR);
+ FFLCR &= 0xef;
+
+ SAVE(STIER);
+ SAVE(STLCR);
+ SAVE(STMCR);
+ SAVE(STSPR);
+ SAVE(STISR);
+ STLCR |= 0x80;
+ SAVE(STDLL);
+ SAVE(STDLH);
+ STLCR &= 0xef;
+
+ SAVE(BTIER);
+ SAVE(BTLCR);
+ SAVE(BTMCR);
+ SAVE(BTSPR);
+ SAVE(BTISR);
+ BTLCR |= 0x80;
+ SAVE(BTDLL);
+ SAVE(BTDLH);
+ BTLCR &= 0xef;
+
+ /* save vital registers */
+ SAVE(OSCR);
+ SAVE(OSMR0);
+ SAVE(OSMR1);
+ SAVE(OSMR2);
+ SAVE(OSMR3);
+ SAVE(OIER);
- SAVE(GPLR0); SAVE(GPLR1); SAVE(GPLR2);
SAVE(GPDR0); SAVE(GPDR1); SAVE(GPDR2);
SAVE(GRER0); SAVE(GRER1); SAVE(GRER2);
SAVE(GFER0); SAVE(GFER1); SAVE(GFER2);
- SAVE(PGSR0); SAVE(PGSR1); SAVE(PGSR2);
-
SAVE(GAFR0_L); SAVE(GAFR0_U);
SAVE(GAFR1_L); SAVE(GAFR1_U);
SAVE(GAFR2_L); SAVE(GAFR2_U);
-#ifdef CONFIG_PXA27x
- SAVE(MDREFR);
- SAVE(GPLR3); SAVE(GPDR3); SAVE(GRER3); SAVE(GFER3); SAVE(PGSR3);
- SAVE(GAFR3_L); SAVE(GAFR3_U);
- SAVE(PWER); SAVE(PCFR); SAVE(PRER);
- SAVE(PFER); SAVE(PKWR);
-#endif
+ // YoKu 23Feb06 Added To save LCD Registers, updated by kirti 24Feb06 ----->
+ SAVE(LCCR0); SAVE(LCCR1); SAVE(LCCR2); SAVE(LCCR3);
+ SAVE(FDADR0);
+ SAVE(FDADR1);
+ LCSR = 0xffffffff; /* Clear LCD Status Register */
+
+// LCCR0 &= ~LCCR0_LDM; /* Enable LCD Disable Done Interrupt */
+// LCCR0 |= LCCR0_DIS; /* Disable LCD Controller */
+
+ SAVE(LDCMD0);
+ // <----- YoKu
+
+// LCCR0 &= ~LCCR0_LDM; /* Enable LCD Disable Done Interrupt */
+// LCCR0 |= LCCR0_DIS; /* Disable LCD Controller */
+
SAVE(ICMR);
ICMR = 0;
SAVE(CKEN);
- SAVE(PSTR);
+ CKEN = 0;
+
+ // Anup : For Wifi power saving mode 2 May 2006
+ SAVE(NSSCR0);SAVE(NSSCR1);SAVE(NSSSR);SAVE(NSSITR);SAVE(NSSDR);SAVE(NSSTO);
+ SAVE(NSSPSP);
+ printk("\nMY favourite mode in life.......sleep.....\n");
+
/* Note: wake up source are set up in each machine specific files */
+ /*Changes to keep the right sim selected */
+ gpsr0 = GPLR0;
+ gpsr1 = GPLR1;
+ gpsr2 = GPLR2;
+
+ /*Sim 1 selected */
+ // YoKu GPIOs Changed ----->
+ if( (GPLR0 & GPIO_bit(21)) && !(GPLR0 & GPIO_bit(22)) ) // 62,63
+ {
+ PGSR0 |= GPIO_bit(21) ; //62
+ PGSR0 &= ~GPIO_bit(22) ; //63
+ }
+ else if (!(GPLR0 & GPIO_bit(21)) && (GPLR0 & GPIO_bit(22)) ) // 62,63
+ {
+ PGSR0 |= GPIO_bit(22) ; //63
+ PGSR0 &= ~GPIO_bit(21) ; //62
+ } /* sim 2*/
+ // <----- YoKu
+
/* clear GPIO transition detect bits */
GEDR0 = GEDR0; GEDR1 = GEDR1; GEDR2 = GEDR2;
-#ifdef CONFIG_PXA27x
- GEDR3 = GEDR3;
-#endif
/* Clear sleep reset status */
RCSR = RCSR_SMR;
+ /* set resume return address */
+ PSPR = virt_to_phys(pxa_cpu_resume);
+
/* before sleeping, calculate and save a checksum */
for (i = 0; i < SLEEP_SAVE_SIZE - 1; i++)
checksum += sleep_save[i];
sleep_save[SLEEP_SAVE_CKSUM] = checksum;
- /* *** go zzz *** */
- pxa_cpu_pm_enter(state);
+ PGSR0 |= GPIO_bit(15); //sidd for wake from Sleep 15, YoKu Comented ?? GPIO15 was ChipSelect
+ PGSR2 |= GPIO_bit(80); //sidd for GSM Engine 69, YoKu GPIO Changed Anup :commented
+
+ PGSR1 &= ~GPIO_bit(33); //Tushar: BT Codec Power Down
+
+ PGSR0 &= ~GPIO_bit(23); //Tushar: BGW200 Regulator OFF
+
+// GPDR1 |= GPIO_bit(49); //Tushar: LCD Serial Data in changed to O/P
+
+// PGSR1 &= ~GPIO_bit(48);//Tushar: LCD Serial Pins
+
+// PGSR1 &= ~GPIO_bit(49);
+
+// PGSR1 &= ~GPIO_bit(50);
+
+// PGSR1 |= GPIO_bit(51);
+
+// PGSR1 &= 0x03FFFFFF;//Tushar: 24apr LCD datalines
+// PGSR2 &= 0xFFFFFC00;
+
+ PGSR0 &= ~GPIO_bit(24); //Tushar: Mux Control Signals
+
+ PGSR0 &= ~GPIO_bit(25);
+
+ PGSR0 &= ~GPIO_bit(26);
+
+ PGSR0 &= ~GPIO_bit(27);
+
+ // GPDR0 |= GPIO_bit(17); //Tushar: unused GPIOs 19apr
+ // GPCR0 |= GPIO_bit(17);
+ PGSR0 &= ~GPIO_bit(17);
+
+// GPDR1 |= GPIO_bit(56); //Tushar: unused GPIOs 19apr
+ // GPCR1 |= GPIO_bit(56);
+ PGSR1 &= ~GPIO_bit(56);
+
+// GPDR2 |= GPIO_bit(79);//Tushar: unused GPIOs 19apr
+// GPCR2 |= GPIO_bit(79);
+ PGSR2 &= ~GPIO_bit(79);
+
+// GPDR1 |= 0x03F00000;//Tushar: unused GPIOs 19apr
+// GPCR1 |= 0x03F00000;
+ PGSR1 &= 0xFC0FFFFF;
+
+
+ GPDR0 |= GPIO_bit(19);//Tushar: SIM Present Inputs configured as outputs
+ GPDR0 |= GPIO_bit(20);
+ PGSR0 &= ~GPIO_bit(19);
+ PGSR0 &= ~GPIO_bit(20);
+
+
+//Tushar: 25apr FFRTS FFDTR & FFTXD
+
+ PGSR1 |= GPIO_bit(39);
+ PGSR1 |= GPIO_bit(40);
+ PGSR1 |= GPIO_bit(41);
+/*
+ PGSR2 &= GPIO_bit(81); //Tushar: 24apr NSSP pins
+ PGSR2 &= GPIO_bit(82);
+ PGSR2 &= GPIO_bit(83);
+
+ PGSR2 |= GPIO_bit(74);
+ PGSR2 |= GPIO_bit(75);
+ PGSR2 |= GPIO_bit(76);
+ PGSR2 |= GPIO_bit(77);
+*/
+ if(pm_pwronoff)
+ {
+ /* We are here bcos of pressing of on off switch
+ We wake up now only on pwr switch */
+ printk("Anup: Before sleeping \n");
+ pm_pwronoff = 0;
+ PGSR0 &= ~GPIO_bit(23); //7 YoKu GPIO Changed
+ //PGSR2 &= ~GPIO_bit(64); //64 YoKu Commented in PWG500 64,7 was WifiReg, IN PWG600 it is 23
+
+ PGSR2 &= ~GPIO_bit(80); //69 YoKu GPIO Changed Anup : commnented
+ PWER = 0x0004; // YoKu Changed from 0x10 to 0x04 (i.e GPIO 4 -> 2)
+ PFER = 0x0004;
+ PRER = 0x0004;
+
+// YoKu ---->
+// 11May2006 To reduce Power Off current from 7mA to 4mA
+ GPDR0 |= GPIO_bit(16); // BTReset o/p Low
+ PGSR0 &= ~GPIO_bit(16);
+
+ GPDR1 |= GPIO_bit(33); // nMEC/nPDI o/p Low
+ PGSR1 &= ~GPIO_bit(33);
+
+ GPDR1 |= GPIO_bit(45); // BTRTS o/p High
+ PGSR1 |= GPIO_bit(45);
+
+
+ GPDR1 |= GPIO_bit(43); // BTTXD o/p High
+ PGSR1 |= GPIO_bit(43);
+
+ GPDR1 &= ~GPIO_bit(42); // BTRXD i/p
+ GPDR1 &= ~GPIO_bit(44); // BTCTS i/p
+// <---- YoKu
+
+ PSPR = virt_to_phys(pxa_cpu_resume); // YoKu 29July05 to Resume from where u left, Original PSPR = 0
+ }
+
+ valbefore = GPLR0 & (GPIO_bit(21) | GPIO_bit(22)) ; // 62,63 YoKu GPIO Changed
+
+ //printk("Anup: Before sleeping gpsr0=0x%08x gpsr1=0x%08x gpsr2= 0x%08x\n",gpsr0,gpsr1,gpsr2);
+ //kirti pxa_cpu_suspend();
+ //printk("KER_PM: Going to sleep zzzzzzzzz\n");
+
+// OSCC |= OSCC_OON; //Tushar: 18 apr. enable 32.768KHz Oscillator
+
+// PCFR |= PCFR_OPDE; //Tushar: 18 apr. disable 3.6864MHz oscillator
+
+ pxa_cpu_pm_enter(PM_SUSPEND_MEM);
cpu_init();
+ //kirti~
+ /**/
+ //FFMCR |= UART_DTR ;
+ /**/
+
/* after sleeping, validate the checksum */
checksum = 0;
for (i = 0; i < SLEEP_SAVE_SIZE - 1; i++)
@@ -141,39 +464,63 @@
checksum = 0;
for (i = 0; i < SLEEP_SAVE_SIZE - 1; i++)
checksum += sleep_save[i];
-
/* if invalid, display message and wait for a hardware reset */
- if (checksum != sleep_save[SLEEP_SAVE_CKSUM]) {
+ if (checksum != sleep_save[SLEEP_SAVE_CKSUM])
+ {
#ifdef CONFIG_ARCH_LUBBOCK
LUB_HEXLED = 0xbadbadc5;
#endif
while (1)
- pxa_cpu_pm_enter(state);
+ {
+ printk("\n\n\nKERN_PM: CRC Error!!! after wakeup\n\n\n"); // YoKu 25May06
+
}
+ }
+ valafter = GPLR0 & (GPIO_bit(21) | GPIO_bit(22)) ; //62,63 YoKu GPIO Changed
+ pm_pedr = PEDR ;
+
/* ensure not to come back here if it wasn't intended */
PSPR = 0;
+ /*printk("YoKu: gafr0_L=0x%08x gafr0_U=0x%08x\n",GAFR0_L,GAFR0_U);
+ printk(" gafr1_L= 0x%08x gafr1_U= 0x%08x\n",GAFR1_L,GAFR1_U);
+ printk(" gafr2_L= 0x%08x gafr2_U= 0x%08x\n",GAFR2_L,GAFR2_U); */
/* restore registers */
- RESTORE_GPLEVEL(0); RESTORE_GPLEVEL(1); RESTORE_GPLEVEL(2);
RESTORE(GPDR0); RESTORE(GPDR1); RESTORE(GPDR2);
+ RESTORE(GRER0); RESTORE(GRER1); RESTORE(GRER2);
+ RESTORE(GFER0); RESTORE(GFER1); RESTORE(GFER2);
RESTORE(GAFR0_L); RESTORE(GAFR0_U);
RESTORE(GAFR1_L); RESTORE(GAFR1_U);
RESTORE(GAFR2_L); RESTORE(GAFR2_U);
- RESTORE(GRER0); RESTORE(GRER1); RESTORE(GRER2);
- RESTORE(GFER0); RESTORE(GFER1); RESTORE(GFER2);
- RESTORE(PGSR0); RESTORE(PGSR1); RESTORE(PGSR2);
-#ifdef CONFIG_PXA27x
- RESTORE(MDREFR);
- RESTORE_GPLEVEL(3); RESTORE(GPDR3);
- RESTORE(GAFR3_L); RESTORE(GAFR3_U);
- RESTORE(GRER3); RESTORE(GFER3); RESTORE(PGSR3);
- RESTORE(PWER); RESTORE(PCFR); RESTORE(PRER);
- RESTORE(PFER); RESTORE(PKWR);
-#endif
- PSSR = PSSR_RDH | PSSR_PH;
+ // Anup : For Wifi power saving mode 2 May 2006
+ RESTORE(NSSCR0);RESTORE(NSSCR1);RESTORE(NSSSR);RESTORE(NSSITR);RESTORE(NSSDR);RESTORE(NSSTO);
+ RESTORE(NSSPSP);
+
+ // PSSR = PSSR_PH;
+ GPSR0 = gpsr0;
+ GPSR1 = gpsr1;
+ GPSR2 = gpsr2;
+
+ // Anup : check values of these registers
+// printk("YoKu: gpsr0=0x%08x gpsr1=0x%08x gpsr2= 0x%08x\n",gpsr0,gpsr1,gpsr2);
+ //sidd
+
+ GPCR0 |= ~gpsr0;
+ GPCR1 |= ~gpsr1;
+ GPCR2 |= ~gpsr2;
+
+
+ PSSR = ~PSSR_PH;
+
+ RESTORE(OSMR0);
+ RESTORE(OSMR1);
+ RESTORE(OSMR2);
+ RESTORE(OSMR3);
+ RESTORE(OSCR);
+ RESTORE(OIER);
RESTORE(CKEN);
@@ -181,62 +528,181 @@
ICCR = 1;
RESTORE(ICMR);
- RESTORE(PSTR);
+ /*
+ * Temporary solution. This won't be necessary once
+ * we move pxa support into the serial driver.
+ * Restore the FF UART.
+ */
+ RESTORE(BTMCR);
+ RESTORE(BTSPR);
+ RESTORE(BTLCR);
+ BTLCR |= 0x80;
+ RESTORE(BTDLH);
+ RESTORE(BTDLL);
+ RESTORE(BTLCR);
+ RESTORE(BTISR);
+ BTFCR = 0xc7;
+ RESTORE(BTIER);
+
+ RESTORE(STMCR);
+ RESTORE(STSPR);
+ RESTORE(STLCR);
+ STLCR |= 0x80;
+ RESTORE(STDLH);
+ RESTORE(STDLL);
+ RESTORE(STLCR);
+ RESTORE(STISR);
+ STFCR = 0xc7;
+ RESTORE(STIER);
+
+ RESTORE(FFMCR);
+ RESTORE(FFSPR);
+ RESTORE(FFLCR);
+ FFLCR |= 0x80;
+ RESTORE(FFDLH);
+ RESTORE(FFDLL);
+ RESTORE(FFLCR);
+ RESTORE(FFISR);
+ RESTORE(FFFCR);
+ FFFCR = 0xc7;
+ RESTORE(FFIER);
+
+ // YoKu 23Feb06 Added To save LCD Registers, updated by kirti 24Feb06 ----->
+ RESTORE(LCCR3); RESTORE(LCCR2); RESTORE(LCCR1);
+ LCCR0=RESTORE(LCCR0) & ~LCCR0_ENB;
+ RESTORE(FDADR0); RESTORE(FDADR1);
+ LCCR0 |= LCCR0_ENB;
+
+ // <----- YoKu
/* restore current time */
- rtc.tv_sec = RCNR;
- restore_time_delta(&delta, &rtc);
+ xtime.tv_sec = RCNR;
+
+ valafter1 = GPLR0 & (GPIO_bit(21) | GPIO_bit(22)) ; //62,63 YoKu GPIO Changed
+
+// SSCR0 &=0xFFFFFFFF;
+// printk("\nPM : val of SSCR0 = %x " , SSCR0);
+
+ printk("KER_PM: Resumed at RCNR = %d RTSR= %x\n",RCNR,RTSR);
+
+ printk("YoKu: pgsr0=0x%08x pgsr1=0x%08x pgsr2= 0x%08x\n",PGSR0,PGSR1,PGSR2);
+
+ OSMR0 = 0; /* set initial match at 0 */
+ OSSR = 0xf; /* clear status on all timers */
+ OIER |= OIER_E0; /* enable match on timer 0 to cause interrupts */
+ OSCR = 0; /* initialize free-running timer, force first match */
+
+ leds_event(led_start);
+ //kirti sti();
+ // call i2c reset here---->
+ ICR = ICR_UR;
+ ISR = 0x7FF; //I2C_ISR_INIT;
+ ICR &= ~ICR_UR;
+
+ ISAR = 0x32;//i2c->slave_addr;
+
+ /* set control register values */
+ ICR = (ICR_BEIE | ICR_IRFIE | ICR_ITEIE | ICR_GCD | ICR_SCLE);//I2C_ICR_INIT;
+
+ /* enable unit */
+ ICR |= ICR_IUE;
+ udelay(100);
+ //<-----
+
+ local_irq_enable();
-#ifdef DEBUG
- printk(KERN_DEBUG "*** made it back from resume\n");
-#endif
return 0;
}
-EXPORT_SYMBOL_GPL(pxa_pm_enter);
-
unsigned long sleep_phys_sp(void *sp)
{
return virt_to_phys(sp);
}
+#ifdef CONFIG_SYSCTL
/*
- * Called after processes are frozen, but before we shut down devices.
+ * ARGH! ACPI people defined CTL_ACPI in linux/acpi.h rather than
+ * linux/sysctl.h.
+ *
+ * This means our interface here won't survive long - it needs a new
+ * interface. Quick hack to get this working - use sysctl id 9999.
*/
-int pxa_pm_prepare(suspend_state_t state)
-{
- extern int pxa_cpu_pm_prepare(suspend_state_t state);
+#warning ACPI broke the kernel, this interface needs to be fixed up.
+#define CTL_ACPI 9999
+#define ACPI_S1_SLP_TYP 19
- return pxa_cpu_pm_prepare(state);
+/*
+ * Send us to sleep.
+ */
+static int sysctl_pm_do_suspend(ctl_table *ctl, int write, struct file *filp,
+ void *buffer, size_t *lenp)
+{
+ int retval=0;
+ unsigned i , clock ;
+ if (write)
+ {
+ char buf[16], *p;
+ unsigned int sleepsec;
+ int len,left = *lenp;
+
+ len = left;
+ if (left > sizeof(buf))
+ left = sizeof(buf);
+ if (!copy_from_user(buf, buffer, left))
+ {
+ buf[sizeof(buf) - 1] = '\0';
+ sleepsec = simple_strtoul(buf, &p, 0);
+ printk("\nSleeping %d Pwronoff=%x RCNR=%d\n",sleepsec,pm_pwronoff,RCNR);
+ printk("\nPWER %x PFER=%x PRER=%x\n",PWER,PFER,PRER);
+ RTAR = xtime.tv_sec + sleepsec;
+ printk("\nRTAR=%d \n",RTAR);
+ }
+ }
+ retval = pm_do_suspend();
+ clock = get_memclk_frequency_10khz();
+ return retval;
}
-
-EXPORT_SYMBOL_GPL(pxa_pm_prepare);
/*
- * Called after devices are re-setup, but before processes are thawed.
+static struct ctl_table pm_table[] =
+{
+ {ACPI_S1_SLP_TYP, "suspend", NULL, 0, 0600, NULL, (proc_handler *)&sysctl_pm_do_suspend},
+ {0}
+};
*/
-int pxa_pm_finish(suspend_state_t state)
+static struct ctl_table pm_table[] =
{
- return 0;
+ {
+ ctl_name: ACPI_S1_SLP_TYP,
+ procname: "suspend",
+ mode: 0600,
+ proc_handler: (proc_handler *)&sysctl_pm_do_suspend,
+ },
+ {
+ ctl_name: 0
}
+};
-EXPORT_SYMBOL_GPL(pxa_pm_finish);
+static struct ctl_table pm_dir_table[] =
+{
+ {CTL_ACPI, "pm", NULL, 0, 0555, pm_table},
+ {0}
+};
/*
- * Set to PM_DISK_FIRMWARE so we can quickly veto suspend-to-disk.
+ * Initialize power interface
*/
-static struct pm_ops pxa_pm_ops = {
- .pm_disk_mode = PM_DISK_FIRMWARE,
- .prepare = pxa_pm_prepare,
- .enter = pxa_pm_enter,
- .finish = pxa_pm_finish,
-};
-
-static int __init pxa_pm_init(void)
+static int __init pm_init(void)
{
- pm_set_ops(&pxa_pm_ops);
+ register_sysctl_table(pm_dir_table, 1);
+ /*Adi: Adjust for clock value to RTC
+ RTTR = RTC clk - 1*/
+ RTTR = 32913;
+
return 0;
}
-device_initcall(pxa_pm_init);
+__initcall(pm_init);
+
+#endif
diff -NurbwB linux-2.6.17/arch/arm/mach-pxa/sleep.S linux-2.6.17-patched/arch/arm/mach-pxa/sleep.S
--- linux-2.6.17/arch/arm/mach-pxa/sleep.S 2006-06-17 18:49:35.000000000 -0700
+++ linux-2.6.17-patched/arch/arm/mach-pxa/sleep.S 2006-09-11 13:07:05.000000000 -0700
@@ -79,7 +79,7 @@
ldr r5, [r4]
@ enable SDRAM self-refresh mode
- orr r5, r5, #MDREFR_SLFRSH
+ orr r5, r5, #(MDREFR_SLFRSH | MDREFR_APD)
#ifdef CONFIG_PXA27x
@ set SDCLKx divide-by-2 bits (this is part of a workaround for Errata 50)
diff -NurbwB linux-2.6.17/include/asm-arm/arch-pxa/pxa-regs.h linux-2.6.17-patched/include/asm-arm/arch-pxa/pxa-regs.h
--- linux-2.6.17/include/asm-arm/arch-pxa/pxa-regs.h 2006-06-17 18:49:35.000000000 -0700
+++ linux-2.6.17-patched/include/asm-arm/arch-pxa/pxa-regs.h 2006-09-11 11:04:36.000000000 -0700
@@ -1748,6 +1748,15 @@
#define SSTO_P(x) (*(((x) == 1) ? &SSTO_P1 : ((x) == 2) ? &SSTO_P2 : ((x) == 3) ? &SSTO_P3 : NULL))
#define SSPSP_P(x) (*(((x) == 1) ? &SSPSP_P1 : ((x) == 2) ? &SSPSP_P2 : ((x) == 3) ? &SSPSP_P3 : NULL))
+#define NSSCR0 __REG(0x41400000) /* SSP Port 1 Control Register 0 */
+#define NSSCR1 __REG(0x41400004) /* SSP Port 1 Control Register 1 */
+#define NSSSR __REG(0x41400008) /* SSP Port 1 Status Register */
+#define NSSITR __REG(0x4140000C) /* SSP Port 1 Interrupt Test Register */
+#define NSSDR __REG(0x41400010) /* (Write / Read) SSP Port 1 Data Write Register/SSP Data Read Register */
+#define NSSTO __REG(0x41400028) /* SSP Port 1 Time Out Register */
+#define NSSPSP __REG(0x4140002C) /* SSP Port 1 Programmable Serial Port Register */
+
+
/*
* MultiMediaCard (MMC) controller
*/
diff -NurbwB linux-2.6.17/kernel/power/main.c linux-2.6.17-patched/kernel/power/main.c
--- linux-2.6.17/kernel/power/main.c 2006-06-17 18:49:35.000000000 -0700
+++ linux-2.6.17-patched/kernel/power/main.c 2006-09-11 12:59:20.000000000 -0700
@@ -66,10 +66,12 @@
goto Enable_cpu;
}
+ /*
if (freeze_processes()) {
error = -EAGAIN;
goto Thaw;
}
+ */
if ((free_pages = nr_free_pages()) < FREE_PAGE_NUMBER) {
pr_debug("PM: free some memory\n");
@@ -110,12 +112,15 @@
local_irq_save(flags);
+ /*
if ((error = device_power_down(PMSG_SUSPEND))) {
printk(KERN_ERR "Some devices failed to power down\n");
goto Done;
}
+ */
+
error = pm_ops->enter(state);
- device_power_up();
+ //device_power_up();
Done:
local_irq_restore(flags);
return error;

58
target/linux/pxa-2.6/patches/002-usb_gadget.patch Normal file
View file

@ -0,0 +1,58 @@
diff -NurbwB linux-2.6.17/drivers/usb/gadget/pxa2xx_udc.c linux-2.6.17-patched/drivers/usb/gadget/pxa2xx_udc.c
--- linux-2.6.17/drivers/usb/gadget/pxa2xx_udc.c 2006-06-17 18:49:35.000000000 -0700
+++ linux-2.6.17-patched/drivers/usb/gadget/pxa2xx_udc.c 2006-09-11 13:02:39.000000000 -0700
@@ -87,8 +87,8 @@
static const char ep0name [] = "ep0";
-// #define USE_DMA
-// #define USE_OUT_DMA
+#define USE_DMA
+#define USE_OUT_DMA
// #define DISABLE_TEST_MODE
#ifdef CONFIG_ARCH_IXP4XX
@@ -1513,7 +1513,7 @@
#endif
/* try to clear these bits before we enable the udc */
- udc_ack_int_UDCCR(UDCCR_SUSIR|/*UDCCR_RSTIR|*/UDCCR_RESIR);
+ udc_ack_int_UDCCR(UDCCR_SUSIR|UDCCR_RSTIR|UDCCR_RESIR);
ep0_idle(dev);
dev->gadget.speed = USB_SPEED_UNKNOWN;
@@ -2043,6 +2043,9 @@
struct pxa2xx_udc *dev = _dev;
int handled;
+
+ udc_set_mask_UDCCR( UDCCR_REM | UDCCR_SRM);
+
dev->stats.irqs++;
HEX_DISPLAY(dev->stats.irqs);
do {
@@ -2137,6 +2139,8 @@
/* we could also ask for 1 msec SOF (SIR) interrupts */
} while (handled);
+
+ udc_clear_mask_UDCCR( UDCCR_SRM | UDCCR_REM);
return IRQ_HANDLED;
}
@@ -2437,6 +2441,7 @@
int retval, out_dma = 1;
u32 chiprev;
+ local_irq_disable();
/* insist on Intel/ARM/XScale */
asm("mrc%? p15, 0, %0, c0, c0" : "=r" (chiprev));
if ((chiprev & CP15R0_VENDOR_MASK) != CP15R0_XSCALE_VALUE) {
@@ -2553,6 +2558,7 @@
#endif
}
#endif
+ local_irq_enable();
create_proc_files();
return 0;

10
target/linux/pxa-2.6/patches/004-skbuf_hack.patch Normal file
View file

@ -0,0 +1,10 @@
--- linux-2.6.17/include/linux/skbuff.h 2006-09-20 16:13:42.000000000 -0700
+++ linux-2.6.17-patched/include/linux/skbuff.h 2006-09-20 16:14:29.000000000 -0700
@@ -239,6 +239,7 @@
} nh;
union {
+ struct ethhdr *ethernet;
unsigned char *raw;
} mac;

111
target/linux/pxa-2.6/patches/005-mtd.patch Normal file
View file

@ -0,0 +1,111 @@
diff -Nurb linux-2.6.17/drivers/mtd/chips/cfi_cmdset_0001.c linux-2.6.17-patched/drivers/mtd/chips/cfi_cmdset_0001.c
--- linux-2.6.17/drivers/mtd/chips/cfi_cmdset_0001.c 2006-06-17 18:49:35.000000000 -0700
+++ linux-2.6.17-patched/drivers/mtd/chips/cfi_cmdset_0001.c 2006-09-25 11:27:06.000000000 -0700
@@ -40,7 +40,7 @@
/* #define CMDSET0001_DISABLE_WRITE_SUSPEND */
// debugging, turns off buffer write mode if set to 1
-#define FORCE_WORD_WRITE 0
+#define FORCE_WORD_WRITE 1
#define MANUFACTURER_INTEL 0x0089
#define I82802AB 0x00ad
diff -Nurb linux-2.6.17/drivers/mtd/maps/lubbock-flash.c linux-2.6.17-patched/drivers/mtd/maps/lubbock-flash.c
--- linux-2.6.17/drivers/mtd/maps/lubbock-flash.c 2006-06-17 18:49:35.000000000 -0700
+++ linux-2.6.17-patched/drivers/mtd/maps/lubbock-flash.c 2006-09-25 10:50:08.000000000 -0700
@@ -26,6 +26,7 @@
#include <asm/hardware.h>
#include <asm/arch/pxa-regs.h>
#include <asm/arch/lubbock.h>
+#include <linux/mtd/concat.h>
#define ROM_ADDR 0x00000000
@@ -48,24 +49,27 @@
.inval_cache = lubbock_map_inval_cache,
} };
-static struct mtd_partition lubbock_partitions[] = {
+static struct mtd_partition lubbock_partitions[] =
+{
{
- .name = "Bootloader",
- .size = 0x00040000,
- .offset = 0,
- .mask_flags = MTD_WRITEABLE /* force read-only */
- },{
- .name = "Kernel",
- .size = 0x00100000,
- .offset = 0x00040000,
- },{
- .name = "Filesystem",
- .size = MTDPART_SIZ_FULL,
- .offset = 0x00140000
- }
+ .name = "root",
+ .offset = 0x00410000
+ },
+ {
+ .name = "kernel",
+ .size = 0x00150000,
+ .offset = 0x000B0000
+ },
+ {
+ .name = "bootloader",
+ .size = 0x000B0000,
+ .offset = 0x00000000
+ },
};
+
static struct mtd_info *mymtds[2];
+static struct mtd_info *merged_mtd;
static struct mtd_partition *parsed_parts[2];
static int nr_parsed_parts[2];
@@ -83,8 +87,8 @@
printk(KERN_NOTICE "Lubbock configured to boot from %s (bank %d)\n",
flashboot?"Flash":"ROM", flashboot);
- lubbock_maps[flashboot^1].name = "Lubbock Application Flash";
- lubbock_maps[flashboot].name = "Lubbock Boot ROM";
+ lubbock_maps[flashboot^1].name = "Flash-1";
+ lubbock_maps[flashboot].name = "Flash-0";
for (i = 0; i < 2; i++) {
lubbock_maps[i].virt = ioremap(lubbock_maps[i].phys, WINDOW_SIZE);
@@ -125,25 +129,23 @@
if (!mymtds[0] && !mymtds[1])
return ret;
- for (i = 0; i < 2; i++) {
- if (!mymtds[i]) {
- printk(KERN_WARNING "%s is absent. Skipping\n", lubbock_maps[i].name);
- } else if (nr_parsed_parts[i]) {
- add_mtd_partitions(mymtds[i], parsed_parts[i], nr_parsed_parts[i]);
- } else if (!i) {
- printk("Using static partitions on %s\n", lubbock_maps[i].name);
- add_mtd_partitions(mymtds[i], lubbock_partitions, ARRAY_SIZE(lubbock_partitions));
- } else {
- printk("Registering %s as whole device\n", lubbock_maps[i].name);
- add_mtd_device(mymtds[i]);
- }
- }
+ if (mymtds[0] && mymtds[1]) {
+ merged_mtd = mtd_concat_create(mymtds, 2, "Concated Flash #1 and #2");
+ if(merged_mtd)
+ add_mtd_partitions(merged_mtd, lubbock_partitions, ARRAY_SIZE(lubbock_partitions));
+ else
+ printk("YoKu: Failed to concate\n");
return 0;
+ }
}
static void __exit cleanup_lubbock(void)
{
int i;
+
+ del_mtd_partitions(merged_mtd);
+ map_destroy(merged_mtd);
+
for (i = 0; i < 2; i++) {