mirror of
https://github.com/torvalds/linux.git
synced 2024-12-13 22:53:20 +00:00
19d3e9a0bd
We currently have a different clock rate for droid4 compared to the stock v3.0.8 based Android Linux kernel: # cat /sys/kernel/debug/clk/dpll_*_m7x2_ck/clk_rate 266666667 307200000 # cat /sys/kernel/debug/clk/l3_gfx_cm:clk:0000:0/clk_rate 307200000 Let's fix this by configuring sgx to use 153.6 MHz instead of 307.2 MHz. Looks like also at least duover needs this change to avoid hangs, so let's apply it for all 4430. This helps a bit with thermal issues that seem to be related to memory corruption when using sgx. It seems that other driver related issues still remain though. Cc: Arthur Demchenkov <spinal.by@gmail.com> Cc: Merlijn Wajer <merlijn@wizzup.org> Cc: Sebastian Reichel <sre@kernel.org> Signed-off-by: Tony Lindgren <tony@atomide.com>
87 lines
1.7 KiB
Plaintext
87 lines
1.7 KiB
Plaintext
/*
|
|
* Device Tree Source for OMAP443x SoC
|
|
*
|
|
* Copyright (C) 2013 Texas Instruments Incorporated - https://www.ti.com/
|
|
*
|
|
* 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 "omap4.dtsi"
|
|
|
|
/ {
|
|
cpus {
|
|
cpu0: cpu@0 {
|
|
/* OMAP443x variants OPP50-OPPNT */
|
|
operating-points = <
|
|
/* kHz uV */
|
|
300000 1025000
|
|
600000 1200000
|
|
800000 1313000
|
|
1008000 1375000
|
|
>;
|
|
clock-latency = <300000>; /* From legacy driver */
|
|
|
|
/* cooling options */
|
|
#cooling-cells = <2>; /* min followed by max */
|
|
};
|
|
};
|
|
|
|
thermal-zones {
|
|
#include "omap4-cpu-thermal.dtsi"
|
|
};
|
|
|
|
ocp {
|
|
bandgap: bandgap@4a002260 {
|
|
reg = <0x4a002260 0x4
|
|
0x4a00232C 0x4>;
|
|
compatible = "ti,omap4430-bandgap";
|
|
|
|
#thermal-sensor-cells = <0>;
|
|
};
|
|
};
|
|
|
|
ocp {
|
|
abb_mpu: regulator-abb-mpu {
|
|
status = "okay";
|
|
|
|
reg = <0x4a307bd0 0x8>, <0x4a306014 0x4>;
|
|
reg-names = "base-address", "int-address";
|
|
|
|
ti,abb_info = <
|
|
/*uV ABB efuse rbb_m fbb_m vset_m*/
|
|
1025000 0 0 0 0 0
|
|
1200000 0 0 0 0 0
|
|
1313000 0 0 0 0 0
|
|
1375000 1 0 0 0 0
|
|
1389000 1 0 0 0 0
|
|
>;
|
|
};
|
|
|
|
/* Default unused, just provide register info for record */
|
|
abb_iva: regulator-abb-iva {
|
|
reg = <0x4a307bd8 0x8>, <0x4a306010 0x4>;
|
|
reg-names = "base-address", "int-address";
|
|
};
|
|
|
|
};
|
|
|
|
};
|
|
|
|
&cpu_thermal {
|
|
coefficients = <0 20000>;
|
|
};
|
|
|
|
/include/ "omap443x-clocks.dtsi"
|
|
|
|
/*
|
|
* Use dpll_per for sgx at 153.6MHz like droid4 stock v3.0.8 Android kernel
|
|
*/
|
|
&sgx_module {
|
|
assigned-clocks = <&l3_gfx_clkctrl OMAP4_GPU_CLKCTRL 24>,
|
|
<&dpll_per_m7x2_ck>;
|
|
assigned-clock-rates = <0>, <153600000>;
|
|
assigned-clock-parents = <&dpll_per_m7x2_ck>;
|
|
};
|