diff options
Diffstat (limited to 'extras/recipes-kernel/linux/linux-omap/dvfs/0017-OMAP3-Add-voltage-dependency-table-for-VDD1.patch')
| -rw-r--r-- | extras/recipes-kernel/linux/linux-omap/dvfs/0017-OMAP3-Add-voltage-dependency-table-for-VDD1.patch | 61 |
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 + |