On 01/21/2014 01:47 PM, Christoph Fritz wrote:
This patch adds file omap37xx100.dtsi which includs a SoC specific table
for CPU OPP.
Please keep in mind that am/dm37xx100 variants differ from am/dm37xx
SoCs without nomenclature marker prefix 100. This marker indicates
the maximum cpu frequency. 100 stands for 1 GHz-Cortex-A8, blank means
maximum 800 MHz.
For more info, see Datasheet http://www.ti.com/lit/ds/sprs685d/sprs685d.pdf
section 7.2.1 Device and Development-Support Tool Nomenclature.
Signed-off-by: Christoph Fritz chf.fr...@googlemail.com
---
arch/arm/boot/dts/omap37xx100.dtsi | 44
1 file changed, 44 insertions(+)
create mode 100644 arch/arm/boot/dts/omap37xx100.dtsi
diff --git a/arch/arm/boot/dts/omap37xx100.dtsi
b/arch/arm/boot/dts/omap37xx100.dtsi
new file mode 100644
index 000..064661e
--- /dev/null
+++ b/arch/arm/boot/dts/omap37xx100.dtsi
@@ -0,0 +1,44 @@
+/*
+ * Device Tree Source for OMAP37x SoC
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed as is without any warranty of any
+ * kind, whether express or implied.
+ */
+
+#include omap3.dtsi
+
+/ {
+ aliases {
+ serial3 = uart4;
+ };
+
+ cpus {
+ /* AM/DM37xx */
+ cpu@0 {
+ operating-points =
+ /* kHzuV */
+ 125000 975000
+ 25 1075000
+ 50 110
+ 60 114
+ 80 127
+ 100 138
This is valid even for 3630/DM3730 as well - unfortunately - you
cannot enable 1GHz without enabling ABB and AVS 1.5.
There is a bunch of internal discussion with respect to lack of this
information available.. but as it stands right now, I dont think this
is valid.
+ ;
+ clock-latency = 30; /* From legacy driver */
+ };
+ };
+
+ ocp {
+ /* uart4 is only available on CBP and CBC packages */
+ uart4: serial@49042000 {
+ compatible = ti,omap3-uart;
+ reg = 0x49042000 0x400;
+ interrupts = 80;
+ dmas = sdma 81 sdma 82;
+ dma-names = tx, rx;
+ ti,hwmods = uart4;
+ clock-frequency = 4800;
+ };
+ };
+};
Further, we should be able to reuse 3630.dtsi for this.
--
Regards,
Nishanth Menon
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