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-rw-r--r--packages/linux/linux-omap2-git/beagleboard/04-omappm-srf-noop.eml497
1 files changed, 0 insertions, 497 deletions
diff --git a/packages/linux/linux-omap2-git/beagleboard/04-omappm-srf-noop.eml b/packages/linux/linux-omap2-git/beagleboard/04-omappm-srf-noop.eml
deleted file mode 100644
index 32d767a342..0000000000
--- a/packages/linux/linux-omap2-git/beagleboard/04-omappm-srf-noop.eml
+++ /dev/null
@@ -1,497 +0,0 @@
-Adds SRF calls into OMAP PM skeleton layer developed by Paul W.
-
-Signed-off-by: Rajendra Nayak <rnayak@ti.com>
----
- arch/arm/mach-omap2/Makefile | 1
- arch/arm/mach-omap2/clockdomain.c | 7
- arch/arm/plat-omap/Kconfig | 3
- arch/arm/plat-omap/Makefile | 4
- arch/arm/plat-omap/omap-pm-srf.c | 367 ++++++++++++++++++++++++++++++++
- include/asm-arm/arch-omap/powerdomain.h | 1
- include/asm-arm/arch-omap/resource.h | 1
- 7 files changed, 383 insertions(+), 1 deletion(-)
-
-Index: linux-omap-2.6/arch/arm/plat-omap/omap-pm-srf.c
-===================================================================
---- /dev/null 1970-01-01 00:00:00.000000000 +0000
-+++ linux-omap-2.6/arch/arm/plat-omap/omap-pm-srf.c 2008-08-11
-17:38:37.000000000 +0530
-@@ -0,0 +1,367 @@
-+/*
-+ * omap-pm-srf.c - OMAP power management interface implemented
-+ * using Shared resource framework
-+ *
-+ * This code implements the OMAP power management interface to
-+ * drivers, CPUIdle, CPUFreq, and DSP Bridge. It is strictly for
-+ * debug/demonstration use, as it does nothing but printk() whenever a
-+ * function is called (when DEBUG is defined, below)
-+ *
-+ * Copyright (C) 2008 Texas Instruments, Inc.
-+ * Copyright (C) 2008 Nokia Corporation
-+ * Paul Walmsley
-+ *
-+ * Interface developed by (in alphabetical order):
-+ * Karthik Dasu, Amish Lakhani, Tony Lindgren, Rajendra Nayak, Sakari
-+ * Poussa, Veeramanikandan Raju, Igor Stoppa, Paul Walmsley, Richard
-+ * Woodruff
-+ *
-+ * Interfaces defined by Paul Walmsley
-+ * Updated with SRF calls by Rajendra Nayak
-+ */
-+
-+#undef DEBUG
-+
-+#include <linux/init.h>
-+#include <linux/cpufreq.h>
-+#include <linux/device.h>
-+
-+/* Interface documentation is in asm/arch/omap-pm.h */
-+#include <asm/arch/omap-pm.h>
-+
-+#include <asm/arch/powerdomain.h>
-+#include <asm/arch/resource.h>
-+/*
-+#include <asm/arch/tiocp.h>
-+*/
-+
-+#define LAT_RES_POSTAMBLE "_latency"
-+char latency_res_name[30];
-+/* lat_name_mutex protects latency_res_name*/
-+static DEFINE_MUTEX(lat_name_mutex);
-+
-+
-+/**
-+ * get_lat_res_name - gets the latency resource name given a power domain name
-+ * @pwrdm_name: Name of the power domain.
-+ *
-+ * Returns a pointer to the latency resource name.
-+ */
-+static char *get_lat_res_name(const char *pwrdm_name)
-+{
-+ strcpy(latency_res_name, "");
-+ if (!(in_atomic() || irqs_disabled()))
-+ mutex_lock(&lat_name_mutex);
-+ WARN_ON(strlen(pwrdm_name) + strlen(LAT_RES_POSTAMBLE) >
-+ sizeof(latency_res_name));
-+ strcpy(latency_res_name, pwrdm_name);
-+ strcat(latency_res_name, LAT_RES_POSTAMBLE);
-+ if (!(in_atomic() || irqs_disabled()))
-+ mutex_unlock(&lat_name_mutex);
-+ return latency_res_name;
-+}
-+
-+static struct omap_opp *dsp_opps;
-+static struct omap_opp *mpu_opps;
-+
-+/*
-+ * Device-driver-originated constraints (via board-*.c files)
-+ */
-+
-+void omap_pm_set_max_mpu_wakeup_lat(struct device *dev, long t)
-+{
-+ if (!dev || t < -1) {
-+ WARN_ON(1);
-+ return;
-+ };
-+
-+ if (t == -1) {
-+ pr_debug("OMAP PM: remove max MPU wakeup latency constraint: "
-+ "dev %s\n", dev_name(dev));
-+ resource_release("mpu_latency", dev);
-+ } else {
-+ pr_debug("OMAP PM: add max MPU wakeup latency constraint: "
-+ "dev %s, t = %ld usec\n", dev_name(dev), t);
-+ resource_request("mpu_latency", dev, t);
-+ }
-+}
-+
-+void omap_pm_set_min_bus_tput(struct device *dev, u8 agent_id, unsigned long r)
-+{
-+ if (!dev || agent_id != OCP_INITIATOR_AGENT ||
-+ agent_id != OCP_TARGET_AGENT) {
-+ WARN_ON(1);
-+ return;
-+ };
-+
-+ if (r == 0)
-+ pr_debug("OMAP PM: remove min bus tput constraint: "
-+ "dev %s for agent_id %d\n", dev_name(dev), agent_id);
-+ else
-+ pr_debug("OMAP PM: add min bus tput constraint: "
-+ "dev %s for agent_id %d: rate %ld KiB\n",
-+ dev_name(dev), agent_id, r);
-+
-+ /*
-+ * This code should model the interconnect and compute the
-+ * required clock frequency, convert that to a VDD2 OPP ID, then
-+ * set the VDD2 OPP appropriately.
-+ *
-+ * TI CDP code can call constraint_set here on the VDD2 OPP.
-+ */
-+}
-+
-+void omap_pm_set_max_dev_wakeup_lat(struct device *dev, long t)
-+{
-+ /* struct tiocp *tiocp_dev; */
-+ struct powerdomain *pwrdm_dev;
-+ char *res_name;
-+
-+ if (!dev || t < -1) {
-+ WARN_ON(1);
-+ return;
-+ };
-+ /* Look for the devices Power Domain */
-+ /* TODO: Put this back in once tiocp layer is available
-+ tiocp_dev = container_of(dev, struct tiocp, dev);
-+ pwrdm_dev = tiocp_dev->pwrdm;
-+ */
-+
-+ if (t == -1) {
-+ pr_debug("OMAP PM: remove max device latency constraint: "
-+ "dev %s\n", dev_name(dev));
-+ res_name = get_lat_res_name(pwrdm_dev->name);
-+ resource_release(res_name, dev);
-+ } else {
-+ pr_debug("OMAP PM: add max device latency constraint: "
-+ "dev %s, t = %ld usec\n", dev_name(dev), t);
-+ res_name = get_lat_res_name(pwrdm_dev->name);
-+ resource_request(res_name, dev, t);
-+ }
-+
-+ /*
-+ * For current Linux, this needs to map the device to a
-+ * powerdomain, then go through the list of current max lat
-+ * constraints on that powerdomain and find the smallest. If
-+ * the latency constraint has changed, the code should
-+ * recompute the state to enter for the next powerdomain
-+ * state. Conceivably, this code should also determine
-+ * whether to actually disable the device clocks or not,
-+ * depending on how long it takes to re-enable the clocks.
-+ *
-+ * TI CDP code can call constraint_set here.
-+ */
-+}
-+
-+void omap_pm_set_max_sdma_lat(struct device *dev, long t)
-+{
-+ if (!dev || t < -1) {
-+ WARN_ON(1);
-+ return;
-+ };
-+
-+ if (t == -1) {
-+ pr_debug("OMAP PM: remove max DMA latency constraint: "
-+ "dev %s\n", dev_name(dev));
-+ resource_release("core_latency", dev);
-+ } else {
-+ pr_debug("OMAP PM: add max DMA latency constraint: "
-+ "dev %s, t = %ld usec\n", dev_name(dev), t);
-+ resource_request("core_latency", dev, t);
-+ }
-+
-+ /*
-+ * For current Linux PM QOS params, this code should scan the
-+ * list of maximum CPU and DMA latencies and select the
-+ * smallest, then set cpu_dma_latency pm_qos_param
-+ * accordingly.
-+ *
-+ * For future Linux PM QOS params, with separate CPU and DMA
-+ * latency params, this code should just set the dma_latency param.
-+ *
-+ * TI CDP code can call constraint_set here.
-+ */
-+
-+}
-+
-+
-+/*
-+ * DSP Bridge-specific constraints
-+ */
-+
-+const struct omap_opp *omap_pm_dsp_get_opp_table(void)
-+{
-+ pr_debug("OMAP PM: DSP request for OPP table\n");
-+
-+ /*
-+ * Return DSP frequency table here: The final item in the
-+ * array should have .rate = .opp_id = 0.
-+ */
-+
-+ return NULL;
-+}
-+
-+void omap_pm_dsp_set_min_opp(u8 opp_id)
-+{
-+ if (opp_id == 0) {
-+ WARN_ON(1);
-+ return;
-+ }
-+
-+ pr_debug("OMAP PM: DSP requests minimum VDD1 OPP to be %d\n", opp_id);
-+
-+ /*
-+ *
-+ * For l-o dev tree, our VDD1 clk is keyed on OPP ID, so we
-+ * can just test to see which is higher, the CPU's desired OPP
-+ * ID or the DSP's desired OPP ID, and use whichever is
-+ * highest.
-+ *
-+ * In CDP12.14+, the VDD1 OPP custom clock that controls the DSP
-+ * rate is keyed on MPU speed, not the OPP ID. So we need to
-+ * map the OPP ID to the MPU speed for use with clk_set_rate()
-+ * if it is higher than the current OPP clock rate.
-+ *
-+ */
-+}
-+
-+
-+u8 omap_pm_dsp_get_opp(void)
-+{
-+ pr_debug("OMAP PM: DSP requests current DSP OPP ID\n");
-+
-+ /*
-+ * For l-o dev tree, call clk_get_rate() on VDD1 OPP clock
-+ *
-+ * CDP12.14+:
-+ * Call clk_get_rate() on the OPP custom clock, map that to an
-+ * OPP ID using the tables defined in board-*.c/chip-*.c files.
-+ */
-+
-+ return 0;
-+}
-+
-+/*
-+ * CPUFreq-originated constraint
-+ *
-+ * In the future, this should be handled by custom OPP clocktype
-+ * functions.
-+ */
-+
-+struct cpufreq_frequency_table **omap_pm_cpu_get_freq_table(void)
-+{
-+ pr_debug("OMAP PM: CPUFreq request for frequency table\n");
-+
-+ /*
-+ * Return CPUFreq frequency table here: loop over
-+ * all VDD1 clkrates, pull out the mpu_ck frequencies, build
-+ * table
-+ */
-+
-+ return NULL;
-+}
-+
-+void omap_pm_cpu_set_freq(unsigned long f)
-+{
-+ if (f == 0) {
-+ WARN_ON(1);
-+ return;
-+ }
-+
-+ pr_debug("OMAP PM: CPUFreq requests CPU frequency to be set to %lu\n",
-+ f);
-+
-+ /*
-+ * For l-o dev tree, determine whether MPU freq or DSP OPP id
-+ * freq is higher. Find the OPP ID corresponding to the
-+ * higher frequency. Call clk_round_rate() and clk_set_rate()
-+ * on the OPP custom clock.
-+ *
-+ * CDP should just be able to set the VDD1 OPP clock rate here.
-+ */
-+}
-+
-+unsigned long omap_pm_cpu_get_freq(void)
-+{
-+ pr_debug("OMAP PM: CPUFreq requests current CPU frequency\n");
-+
-+ /*
-+ * Call clk_get_rate() on the mpu_ck.
-+ */
-+
-+ return 0;
-+}
-+
-+struct device omap_pm_dev;
-+
-+/*
-+ * Powerdomain usecounting hooks
-+ */
-+
-+void omap_pm_pwrdm_active(struct powerdomain *pwrdm)
-+{
-+ char *res_name;
-+
-+ if (!pwrdm) {
-+ WARN_ON(1);
-+ return;
-+ };
-+
-+ if (!strcmp(pwrdm->name, "wkup_pwrdm") ||
-+ !strcmp(pwrdm->name, "core_pwrdm"))
-+ return;
-+
-+ pr_debug("OMAP PM: powerdomain %s is becoming active\n", pwrdm->name);
-+
-+ res_name = get_lat_res_name(pwrdm->name);
-+ /* Request for a zero latency which puts the Power Domain in ON state*/
-+ resource_request(res_name, &omap_pm_dev, 0);
-+ return;
-+}
-+
-+void omap_pm_pwrdm_inactive(struct powerdomain *pwrdm)
-+{
-+ char *res_name;
-+
-+ if (!pwrdm) {
-+ WARN_ON(1);
-+ return;
-+ };
-+
-+ if (!strcmp(pwrdm->name, "wkup_pwrdm") ||
-+ !strcmp(pwrdm->name, "core_pwrdm"))
-+ return;
-+
-+ pr_debug("OMAP PM: powerdomain %s is becoming inactive\n",
-+ pwrdm->name);
-+
-+ res_name = get_lat_res_name(pwrdm->name);
-+ /* Release the latency requested */
-+ resource_release(res_name, &omap_pm_dev);
-+ return;
-+}
-+
-+/*
-+ * Should be called before clk framework since clk fw will call
-+ * omap_pm_pwrdm_{in,}active()
-+ */
-+int __init omap_pm_if_early_init(void)
-+{
-+ return 0;
-+}
-+
-+/* Must be called after clock framework is initialized */
-+int __init omap_pm_if_init(struct omap_opp *mpu_opp_table,
-+ struct omap_opp *dsp_opp_table)
-+{
-+ mpu_opps = mpu_opp_table;
-+ dsp_opps = dsp_opp_table;
-+ resource_init(resources_omap);
-+ return 0;
-+}
-+
-+void omap_pm_if_exit(void)
-+{
-+ /* Deallocate CPUFreq frequency table here */
-+}
-+
-Index: linux-omap-2.6/arch/arm/mach-omap2/clockdomain.c
-===================================================================
---- linux-omap-2.6.orig/arch/arm/mach-omap2/clockdomain.c 2008-08-11
-17:12:19.000000000 +0530
-+++ linux-omap-2.6/arch/arm/mach-omap2/clockdomain.c 2008-08-11
-17:14:31.000000000 +0530
-@@ -35,6 +35,7 @@
-
- #include <asm/arch/powerdomain.h>
- #include <asm/arch/clockdomain.h>
-+#include <asm/arch/omap-pm.h>
-
- /* clkdm_list contains all registered struct clockdomains */
- static LIST_HEAD(clkdm_list);
-@@ -561,6 +562,9 @@ int omap2_clkdm_clk_enable(struct clockd
- else
- omap2_clkdm_wakeup(clkdm);
-
-+ /*Hook to inform the OMAP PM layer that the pwrdm has become active */
-+ omap_pm_pwrdm_active(clkdm->pwrdm.ptr);
-+
- return 0;
- }
-
-@@ -612,6 +616,9 @@ int omap2_clkdm_clk_disable(struct clock
- else
- omap2_clkdm_sleep(clkdm);
-
-+ /*Hook to inform the OMAP PM layer that the pwrdm has become inactive */
-+ omap_pm_pwrdm_inactive(clkdm->pwrdm.ptr);
-+
- return 0;
- }
-
-Index: linux-omap-2.6/include/asm-arm/arch-omap/powerdomain.h
-===================================================================
---- linux-omap-2.6.orig/include/asm-arm/arch-omap/powerdomain.h 2008-08-11
-17:12:19.000000000 +0530
-+++ linux-omap-2.6/include/asm-arm/arch-omap/powerdomain.h 2008-08-11
-17:14:31.000000000 +0530
-@@ -148,6 +148,7 @@ int pwrdm_read_next_pwrst(struct powerdo
- int pwrdm_read_pwrst(struct powerdomain *pwrdm);
- int pwrdm_read_prev_pwrst(struct powerdomain *pwrdm);
- int pwrdm_clear_all_prev_pwrst(struct powerdomain *pwrdm);
-+int pwrdm_read_pwrst(struct powerdomain *pwrdm);
-
- int pwrdm_set_logic_retst(struct powerdomain *pwrdm, u8 pwrst);
- int pwrdm_set_mem_onst(struct powerdomain *pwrdm, u8 bank, u8 pwrst);
-Index: linux-omap-2.6/arch/arm/mach-omap2/Makefile
-===================================================================
---- linux-omap-2.6.orig/arch/arm/mach-omap2/Makefile 2008-08-11
-17:12:19.000000000 +0530
-+++ linux-omap-2.6/arch/arm/mach-omap2/Makefile 2008-08-11 17:14:31.000000000
-+0530
-@@ -34,6 +34,7 @@ obj-$(CONFIG_OMAP_SMARTREFLEX) += smart
- # Clock framework
- obj-$(CONFIG_ARCH_OMAP2) += clock24xx.o
- obj-$(CONFIG_ARCH_OMAP3) += clock34xx.o
-+obj-$(CONFIG_OMAP_PM_SRF) += resource34xx.o
-
- # DSP
- obj-$(CONFIG_OMAP_MMU_FWK) += mmu_mach.o
-Index: linux-omap-2.6/arch/arm/plat-omap/Kconfig
-===================================================================
---- linux-omap-2.6.orig/arch/arm/plat-omap/Kconfig 2008-08-11
-17:12:25.000000000 +0530
-+++ linux-omap-2.6/arch/arm/plat-omap/Kconfig 2008-08-11 17:14:31.000000000 +0530
-@@ -258,6 +258,9 @@ config OMAP_PM_NONE
- config OMAP_PM_NOOP
- bool "No-op/debug PM layer"
-
-+config OMAP_PM_SRF
-+ bool "PM layer implemented using SRF"
-+
- endchoice
-
- endif
-Index: linux-omap-2.6/arch/arm/plat-omap/Makefile
-===================================================================
---- linux-omap-2.6.orig/arch/arm/plat-omap/Makefile 2008-08-11
-17:12:25.000000000 +0530
-+++ linux-omap-2.6/arch/arm/plat-omap/Makefile 2008-08-11 17:14:31.000000000 +0530
-@@ -29,4 +29,6 @@ obj-$(CONFIG_OMAP_MMU_FWK) += mmu.o
- # OMAP mailbox framework
- obj-$(CONFIG_OMAP_MBOX_FWK) += mailbox.o
-
--obj-$(CONFIG_OMAP_PM_NOOP) += omap-pm-noop.o
-\ No newline at end of file
-+obj-$(CONFIG_OMAP_PM_NOOP) += omap-pm-noop.o
-+obj-$(CONFIG_OMAP_PM_SRF) += omap-pm-srf.o \
-+ resource.o
-Index: linux-omap-2.6/include/asm-arm/arch-omap/resource.h
-===================================================================
---- linux-omap-2.6.orig/include/asm-arm/arch-omap/resource.h 2008-08-11
-17:12:30.000000000 +0530
-+++ linux-omap-2.6/include/asm-arm/arch-omap/resource.h 2008-08-11
-17:14:31.000000000 +0530
-@@ -85,6 +85,7 @@ struct users_list {
- u8 usage;
- };
-
-+extern struct shared_resource *resources_omap[];
- /* Shared resource Framework API's */
- void resource_init(struct shared_resource **resources);
- int resource_register(struct shared_resource *res);
-
-
---
-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
generated by cgit v1.2.3 (git 2.25.1) at 2025-01-27 09:54:44 +0000