1 files changed, 61 insertions, 0 deletions

diff --git a/extras/recipes-kernel/linux/linux-omap/dvfs/0017-OMAP3-Add-voltage-dependency-table-for-VDD1.patch b/extras/recipes-kernel/linux/linux-omap/dvfs/0017-OMAP3-Add-voltage-dependency-table-for-VDD1.patch
new file mode 100644
index 00000000..68999391
--- /dev/null
+++ b/extras/recipes-kernel/linux/linux-omap/dvfs/0017-OMAP3-Add-voltage-dependency-table-for-VDD1.patch
@@ -0,0 +1,61 @@
+From c196a4ac3941fb9af4654d5d028ad21f4b91d721 Mon Sep 17 00:00:00 2001
+From: Thara Gopinath <thara@ti.com>
+Date: Wed, 18 Aug 2010 16:22:49 +0530
+Subject: [PATCH 17/20] OMAP3: Add voltage dependency table for VDD1.
+
+In OMAP3, for perfomrance reasons when VDD1 is at voltage above
+1.075V, VDD2 should be at 1.15V for perfomrance reasons. This
+patch introduce this cross VDD dependency for OMAP3 VDD1.
+
+Signed-off-by: Thara Gopinath <thara@ti.com>
+---
+ arch/arm/mach-omap2/voltage.c |   24 ++++++++++++++++++++++--
+ 1 files changed, 22 insertions(+), 2 deletions(-)
+
+diff --git a/arch/arm/mach-omap2/voltage.c b/arch/arm/mach-omap2/voltage.c
+index 2f331de..d10cb1b 100644
+--- a/arch/arm/mach-omap2/voltage.c
++++ b/arch/arm/mach-omap2/voltage.c
+@@ -374,6 +374,23 @@ static struct omap_volt_data omap44xx_vdd_core_volt_data[] = {
+        VOLT_DATA_DEFINE(0, 0, 0, 0),
+ };
+ 
++/* OMAP 3430 MPU Core VDD dependency table */
++static struct omap_vdd_dep_volt omap34xx_vdd1_vdd2_data[] = {
++       {.main_vdd_volt = 975000, .dep_vdd_volt = 1050000},
++       {.main_vdd_volt = 1075000, .dep_vdd_volt = 1050000},
++       {.main_vdd_volt = 1200000, .dep_vdd_volt = 1150000},
++       {.main_vdd_volt = 1270000, .dep_vdd_volt = 1150000},
++       {.main_vdd_volt = 1350000, .dep_vdd_volt = 1150000},
++       {.main_vdd_volt = 0, .dep_vdd_volt = 0},
++};
++
++static struct omap_vdd_dep_info omap34xx_vdd1_dep_info[] = {
++       {
++               .name   = "core",
++               .dep_table = omap34xx_vdd1_vdd2_data,
++       },
++};
++
+ static struct dentry *voltage_dir;
+ 
+ /* Init function pointers */
+@@ -879,10 +896,13 @@ static int __init omap3_vdd_data_configure(struct omap_vdd_info *vdd)
+        }
+ 
+        if (!strcmp(vdd->voltdm.name, "mpu")) {
+-               if (cpu_is_omap3630())
++               if (cpu_is_omap3630()) {
+                        vdd->volt_data = omap36xx_vddmpu_volt_data;
+-               else
++               } else {
+                        vdd->volt_data = omap34xx_vddmpu_volt_data;
++                       vdd->dep_vdd_info = omap34xx_vdd1_dep_info;
++                       vdd->nr_dep_vdd = ARRAY_SIZE(omap34xx_vdd1_dep_info);
++               }
+ 
+                vdd->vp_reg.tranxdone_status = OMAP3430_VP1_TRANXDONE_ST_MASK;
+                vdd->vc_reg.cmdval_reg = OMAP3_PRM_VC_CMD_VAL_0_OFFSET;
+-- 
+1.6.6.1
+