diff options
Diffstat (limited to 'packages/linux/linux-omap2-git/beagleboard/09-omappm-vdd2-scaling.eml')
| -rw-r--r-- | packages/linux/linux-omap2-git/beagleboard/09-omappm-vdd2-scaling.eml | 102 |
1 files changed, 0 insertions, 102 deletions
diff --git a/packages/linux/linux-omap2-git/beagleboard/09-omappm-vdd2-scaling.eml b/packages/linux/linux-omap2-git/beagleboard/09-omappm-vdd2-scaling.eml deleted file mode 100644 index 532a9f7975..0000000000 --- a/packages/linux/linux-omap2-git/beagleboard/09-omappm-vdd2-scaling.eml +++ /dev/null @@ -1,102 +0,0 @@ -Adds VDD2 scaling support - -Signed-off-by: Rajendra Nayak <rnayak@ti.com> ---- - arch/arm/mach-omap2/resource34xx.c | 35 +++++++++++++++++++++++++++++++++-- - arch/arm/plat-omap/omap-pm-srf.c | 15 +++++---------- - 2 files changed, 38 insertions(+), 12 deletions(-) - -Index: linux-omap-2.6/arch/arm/mach-omap2/resource34xx.c -=================================================================== ---- linux-omap-2.6.orig/arch/arm/mach-omap2/resource34xx.c 2008-07-21 -12:10:22.032527379 +0530 -+++ linux-omap-2.6/arch/arm/mach-omap2/resource34xx.c 2008-07-21 -12:10:22.479513287 +0530 -@@ -174,7 +174,9 @@ void init_opp(struct shared_resource *re - int set_opp(struct shared_resource *resp, u32 target_level) - { - #ifdef CONFIG_MACH_OMAP_3430SDP -- unsigned long mpu_freq; -+ unsigned long mpu_freq, l3_freq, tput; -+ int ind; -+ struct bus_throughput_db *tput_db; - - if (resp->curr_level == target_level) - return 0; -@@ -195,7 +197,36 @@ int set_opp(struct shared_resource *resp - } - resp->curr_level = curr_vdd1_prcm_set->opp; - } else if (strcmp(resp->name, "vdd2_opp") == 0) { -- /* Not supported yet */ -+ tput_db = resp->resource_data; -+ tput = target_level; -+ /* using the throughput db map to the appropriate L3 Freq */ -+ for (ind = 1; ind < MAX_VDD2_OPP; ind++) -+ if (tput_db->throughput[ind] > tput) -+ target_level = ind; -+ -+ /* Set the highest OPP possible */ -+ if (ind == MAX_VDD2_OPP) -+ target_level = ind-1; -+ -+ if (resp->curr_level == target_level) -+ return 0; -+ -+ resp->curr_level = target_level; -+ -+ l3_freq = get_freq(vdd2_rate_table + MAX_VDD2_OPP, -+ target_level); -+ if (resp->curr_level > target_level) { -+ /* Scale Frequency and then voltage */ -+ clk_set_rate(vdd2_clk, l3_freq); -+ sr_voltagescale_vcbypass(PRCM_VDD2, -+ vdd2_volts[target_level-1]); -+ } else { -+ /* Scale Voltage and then frequency */ -+ sr_voltagescale_vcbypass(PRCM_VDD2, -+ vdd2_volts[target_level-1]); -+ clk_set_rate(vdd1_clk, l3_freq); -+ } -+ resp->curr_level = curr_vdd2_prcm_set->opp; - } - #endif - return 0; -Index: linux-omap-2.6/arch/arm/plat-omap/omap-pm-srf.c -=================================================================== ---- linux-omap-2.6.orig/arch/arm/plat-omap/omap-pm-srf.c 2008-07-21 -12:10:21.626540178 +0530 -+++ linux-omap-2.6/arch/arm/plat-omap/omap-pm-srf.c 2008-07-21 -12:10:22.479513287 +0530 -@@ -95,21 +95,16 @@ void omap_pm_set_min_bus_tput(struct dev - return; - }; - -- if (r == 0) -+ 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 -+ resource_release("vdd2_opp", r); -+ } 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. -- */ -+ resource_request("vdd2_opp", dev, r); -+ } - } - - void omap_pm_set_max_dev_wakeup_lat(struct device *dev, long t) - - --- -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 |