3d49538364
The omap3_pmx_core pinmux device in the device tree handles the system controller module (SCM) PADCONFS fonction. Its control registers are split in two distinct areas, with other SCM registers in-between. Those other registers can't thus be requested by other drivers as the memory region gets reserved by the pinmux driver. Split the omap3_pmx_core device tree node in two for the two memory regions. The second region address and size depends on the SoC model. The change in omap3.dtsi fixes an "external abort on non-linefetch" when doing cat /sys/kernel/debug/pinctrl/.../pins on a Nokia N900. Note that the core2 padconf region is different for 3430 vs 3630, and does not exist on 3517 as noted by Nishanth Menon <nm@ti.com>. Reported-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-By: Sebastian Reichel <sre@debian.org> Signed-off-by: Nishanth Menon <nm@ti.com> [tony@atomide.com: updated for 3430 vs 3630 core2 based on Nishant's patch] Signed-off-by: Tony Lindgren <tony@atomide.com>
54 lines
1.2 KiB
Plaintext
54 lines
1.2 KiB
Plaintext
/*
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* Device Tree Source for OMAP3 SoC
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*
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* Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/
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*
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* This file is licensed under the terms of the GNU General Public License
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* version 2. This program is licensed "as is" without any warranty of any
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* kind, whether express or implied.
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*/
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#include "omap3.dtsi"
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/ {
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aliases {
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serial3 = &uart4;
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};
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cpus {
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/* OMAP3630/OMAP37xx 'standard device' variants OPP50 to OPP130 */
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cpu@0 {
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operating-points = <
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/* kHz uV */
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300000 1012500
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600000 1200000
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800000 1325000
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>;
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clock-latency = <300000>; /* From legacy driver */
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};
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};
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ocp {
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uart4: serial@49042000 {
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compatible = "ti,omap3-uart";
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reg = <0x49042000 0x400>;
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interrupts = <80>;
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dmas = <&sdma 81 &sdma 82>;
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dma-names = "tx", "rx";
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ti,hwmods = "uart4";
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clock-frequency = <48000000>;
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};
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omap3_pmx_core2: pinmux@480025a0 {
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compatible = "ti,omap3-padconf", "pinctrl-single";
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reg = <0x480025a0 0x5c>;
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#address-cells = <1>;
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#size-cells = <0>;
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#interrupt-cells = <1>;
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interrupt-controller;
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pinctrl-single,register-width = <16>;
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pinctrl-single,function-mask = <0xff1f>;
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};
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};
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};
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