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linux-am335x-psp: Add 1 GHZ Support for BBB

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Signed-off-by: Franklin S. Cooper Jr <fcooper@ti.com>
Signed-off-by: Denys Dmytriyenko <denys@ti.com>
This commit is contained in:
Franklin S. Cooper Jr
2013-06-27 10:57:35 -05:00
committed by Denys Dmytriyenko
parent 0bd76f05cd
commit 29dc2a79e0
2 changed files with 45 additions and 2 deletions
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41
recipes-kernel/linux/linux-am335x-psp-3.2/0001-am335x-Re-enable-Turbo-and-Nitro-modes-for-Beaglebon.patch Normal file
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@@ -0,0 +1,41 @@
From ec0ec41418ec1193e4352f1983ab29173f10f855 Mon Sep 17 00:00:00 2001
From: Steve Kipisz <s-kipisz2@ti.com>
Date: Wed, 5 Jun 2013 10:10:44 -0500
Subject: [PATCH] am335x:Re-enable Turbo and Nitro modes for Beaglebone Black
The Beaglebone Black boards use a speed binned PG2.0 AM335x
that operate up to 1GHz so re-enable those modes for
Beaglebone Black.
Signed-off-by: Steve Kipisz <s-kipisz2@ti.com>
---
arch/arm/mach-omap2/board-am335xevm.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/arch/arm/mach-omap2/board-am335xevm.c b/arch/arm/mach-omap2/board-am335xevm.c
index bac415c..47e5a9d 100644
--- a/arch/arm/mach-omap2/board-am335xevm.c
+++ b/arch/arm/mach-omap2/board-am335xevm.c
@@ -2529,6 +2529,20 @@ static void am335x_evm_setup(struct memory_accessor *mem_acc, void *context)
am335x_opp_update();
+ /*
+ * For now, Beaglebone Black uses PG 2.0 that are speed binned and operate
+ * up to 1GHz. So re-enable Turbo and Nitro modes,
+ */
+ if (!strncmp("A335BNLT", config.name, 8)) {
+ struct device *mpu_dev;
+
+ mpu_dev = omap_device_get_by_hwmod_name("mpu");
+ opp_enable(mpu_dev,
+ AM33XX_ES2_0_OPPTURBO_FREQ);
+ opp_enable(mpu_dev,
+ AM33XX_ES2_0_OPPNITRO_FREQ);
+ }
+
/* SmartReflex also requires board information. */
am33xx_sr_init();
--
1.7.9.5

6
recipes-kernel/linux/linux-am335x-psp_3.2.bb
View File

@@ -15,7 +15,7 @@ DEPENDS += "am33x-cm3"
KERNEL_IMAGETYPE = "uImage"
# The main PR is now using MACHINE_KERNEL_PR, for ti33x see conf/machine/include/ti33x.inc
MACHINE_KERNEL_PR_append = "g+gitr${SRCPV}"
MACHINE_KERNEL_PR_append = "h+gitr${SRCPV}"
BRANCH = "v3.2-staging"
@@ -88,7 +88,9 @@ PATCHES += "file://0001-am335x-enable-pullup-on-the-WLAN-enable-pin-fo.patch"
PATCHES += "file://0001-ARM-OMAP2-AM335x-Update-SPI-flash-layout.patch"
# Add support for Beaglebone Black
PATCHES += "file://0001-am335x-Add-minimal-support-for-Beaglebone-Black.patch"
PATCHES += "file://0001-am335x-Add-minimal-support-for-Beaglebone-Black.patch \
file://0001-am335x-Re-enable-Turbo-and-Nitro-modes-for-Beaglebon.patch \
"
# Copy the am33x-cm3 firmware if it is available
do_configure_append() {