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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
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