mirror of
https://github.com/tbsdtv/linux_media.git
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8a996b2d8a
The Ux500 platforms have some memory carveouts set aside for
communicating with the modem and for the initial secure software
(ISSW). These areas are protected by the memory controller
and will result in an external abort if accessed like common
read/write memory.
On the legacy boot loaders, these were set aside by using
cmdline arguments such as this:
mem=96M@0 mem_mtrace=15M@96M mem_mshared=1M@111M
mem_modem=16M@112M mali.mali_mem=32M@128M mem=96M@160M
hwmem=127M@256M mem_issw=1M@383M mem_ram_console=1M@384M
mem=638M@385M
Reserve the relevant areas in the device tree instead. The
"mali", "hwmem", "mem_ram_console" and the trailing 1MB at the
end of the memory reservations in the list are not relevant for
the upstream kernel as these are nowadays replaced with
upstream technologies such as CMA. The modem and ISSW
reservations are necessary.
This was manifested in a bug that surfaced in response to
commit 7fef431be9 ("mm/page_alloc: place pages to tail in __free_pages_core()")
which changes the behaviour of memory allocations
in such a way that the platform will sooner run into these
dangerous areas, with "Unhandled fault: imprecise external
abort (0xc06) at 0xb6fd83dc" or similar: the real reason
turns out to be that the PTE is pointing right into one of
the reserved memory areas. We were just lucky until now.
We need to augment the DB8500 and DB8520 SoCs similarly
and also create a new include for the DB9500 used in the
Snowball since this does not have a modem and thus does
not need the modem memory reservation, albeit it needs
the ISSW reservation.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Cc: stable@vger.kernel.org
Cc: David Hildenbrand <david@redhat.com>
Link: https://lore.kernel.org/r/20201213225517.3838501-1-linus.walleij@linaro.org'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
625 lines
15 KiB
Plaintext
625 lines
15 KiB
Plaintext
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright 2011 ST-Ericsson AB
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*/
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/dts-v1/;
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#include "ste-db9500.dtsi"
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#include "ste-href-ab8500.dtsi"
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#include "ste-href-family-pinctrl.dtsi"
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/ {
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model = "Calao Systems Snowball platform with device tree";
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compatible = "calaosystems,snowball-a9500", "st-ericsson,u9500";
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memory {
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device_type = "memory";
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reg = <0x00000000 0x20000000>;
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};
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en_3v3_reg: en_3v3 {
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compatible = "regulator-fixed";
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regulator-name = "en-3v3-fixed-supply";
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regulator-min-microvolt = <3300000>;
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regulator-max-microvolt = <3300000>;
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/* AB8500 GPIOs start from 1 - offset 25 is GPIO26. */
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gpio = <&ab8500_gpio 25 0x4>;
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startup-delay-us = <5000>;
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enable-active-high;
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};
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gpio_keys {
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compatible = "gpio-keys";
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#address-cells = <1>;
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#size-cells = <0>;
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button@1 {
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debounce-interval = <50>;
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wakeup-source;
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linux,code = <2>;
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label = "userpb";
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gpios = <&gpio1 0 GPIO_ACTIVE_HIGH>;
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};
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button@2 {
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debounce-interval = <50>;
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wakeup-source;
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linux,code = <3>;
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label = "extkb1";
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gpios = <&gpio4 23 GPIO_ACTIVE_HIGH>;
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};
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button@3 {
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debounce-interval = <50>;
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wakeup-source;
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linux,code = <4>;
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label = "extkb2";
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gpios = <&gpio4 24 GPIO_ACTIVE_HIGH>;
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};
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button@4 {
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debounce-interval = <50>;
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wakeup-source;
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linux,code = <5>;
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label = "extkb3";
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gpios = <&gpio5 1 GPIO_ACTIVE_HIGH>;
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};
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button@5 {
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debounce-interval = <50>;
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wakeup-source;
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linux,code = <6>;
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label = "extkb4";
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gpios = <&gpio5 2 GPIO_ACTIVE_HIGH>;
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};
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};
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leds {
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compatible = "gpio-leds";
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pinctrl-names = "default";
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pinctrl-0 = <&gpioled_snowball_mode>;
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used-led {
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label = "user_led";
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gpios = <&gpio4 14 GPIO_ACTIVE_HIGH>;
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default-state = "on";
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linux,default-trigger = "heartbeat";
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};
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};
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soc {
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/* Name the GPIO muxed rails on the Snowball board */
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gpio@8012e000 {
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/* GPIOs 0 - 31 */
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gpio-line-names = "", "", "", "", "", "", "", "",
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"", "", "", "", "", "", "", "",
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"", "", "", "", "", "", "", "",
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"", "", "", "", "", "", "",
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"AP_GPIO31";
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};
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gpio@8012e080 {
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/* GPIOs 32 - 63 */
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gpio-line-names = "USR PB", "", "", "", "", "", "", "",
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"", "", "", "", "", "", "", "",
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"", "", "", "", "", "", "", "",
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"", "", "", "", "", "", "", "";
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};
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gpio@8000e000 {
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/* GPIOs 64 - 95 */
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gpio-line-names = "", "", "", "", "AP_GPIO68", "", "", "",
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"", "", "", "", "", "", "", "",
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"", "", "", "", "", "", "", "",
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"", "", "", "", "", "", "", "";
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};
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gpio@8000e100 {
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/* GPIOs 128 - 159 */
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gpio-line-names = "", "", "", "", "", "", "", "",
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"", "", "", "", "IRQ_LAN", "RSTn_LAN",
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"USR_LED", "", "", "", "", "", "",
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"", "", "AP_GPIO151", "AP_GPIO152",
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"", "", "", "", "", "", "";
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};
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gpio@8000e180 {
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/* GPIOs 160 - 191 */
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gpio-line-names = "", "AP_GPIO161", "AP_GPIO162",
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"ACCELEROMETER_INT1_RDY",
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"ACCELEROMETER_INT2", "MAG_DRDY",
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"GYRO_DRDY", "RSTn_MLC", "RSTn_SLC",
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"GYRO_INT", "UART_WAKE", "GBF_RESET",
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"", "", "", "",
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"", "", "", "", "", "", "", "",
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"", "", "", "", "", "", "", "";
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};
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gpio@8011e000 {
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/* GPIOs 192 - 223 */
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gpio-line-names = "HDTV_INTn", "", "", "", "HDTV_RST",
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"", "", "", "", "", "", "", "", "",
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"", "", "", "", "", "", "", "", "",
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"WLAN_RESETN", "WLAN_IRQ", "MMC_EN",
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"MMC_CD", "", "", "", "", "";
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};
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gpio@8011e080 {
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/* GPIOs 224 - 255 */
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gpio-line-names = "", "", "", "", "SD_SEL", "", "", "",
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"", "", "", "", "", "", "", "",
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"", "", "", "", "", "", "", "",
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"", "", "", "", "", "", "", "";
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};
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msp0: msp@80123000 {
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pinctrl-names = "default";
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pinctrl-0 = <&msp0txrxtfstck_a_1_default>;
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status = "okay";
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};
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msp1: msp@80124000 {
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pinctrl-names = "default";
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pinctrl-0 = <&msp1txrx_a_1_default>;
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status = "okay";
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};
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msp2: msp@80117000 {
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pinctrl-names = "default";
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pinctrl-0 = <&msp2_a_1_default>;
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};
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msp3: msp@80125000 {
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status = "okay";
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};
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external-bus@50000000 {
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status = "okay";
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ethernet@0 {
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compatible = "smsc,lan9115";
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reg = <0 0x10000>;
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interrupts = <12 IRQ_TYPE_EDGE_RISING>;
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interrupt-parent = <&gpio4>;
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vdd33a-supply = <&en_3v3_reg>;
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vddvario-supply = <&db8500_vape_reg>;
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pinctrl-names = "default";
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pinctrl-0 = <ð_snowball_mode>;
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reg-shift = <1>;
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reg-io-width = <2>;
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smsc,force-internal-phy;
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smsc,irq-active-high;
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smsc,irq-push-pull;
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clocks = <&prcc_pclk 3 0>;
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};
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};
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/* ST6G3244ME level translator for 1.8/2.9 V */
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vmmci: regulator-gpio {
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compatible = "regulator-gpio";
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/* GPIO228 SD_SEL */
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gpios = <&gpio7 4 GPIO_ACTIVE_HIGH>;
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/* GPIO217 MMC_EN */
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enable-gpio = <&gpio6 25 GPIO_ACTIVE_HIGH>;
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enable-active-high;
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regulator-min-microvolt = <1800000>;
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regulator-max-microvolt = <2900000>;
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regulator-name = "mmci-reg";
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regulator-type = "voltage";
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startup-delay-us = <100>;
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states = <1800000 0x1
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2900000 0x0>;
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};
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// External Micro SD slot
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sdi0_per1@80126000 {
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arm,primecell-periphid = <0x10480180>;
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max-frequency = <100000000>;
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bus-width = <4>;
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cap-sd-highspeed;
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cap-mmc-highspeed;
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sd-uhs-sdr12;
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sd-uhs-sdr25;
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/* All direction control is used */
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st,sig-dir-cmd;
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st,sig-dir-dat0;
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st,sig-dir-dat2;
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st,sig-dir-dat31;
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st,sig-pin-fbclk;
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full-pwr-cycle;
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vmmc-supply = <&ab8500_ldo_aux3_reg>;
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vqmmc-supply = <&vmmci>;
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pinctrl-names = "default", "sleep";
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pinctrl-0 = <&mc0_a_1_default &sdi0_default_mode>;
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pinctrl-1 = <&mc0_a_1_sleep>;
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/* GPIO218 MMC_CD */
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cd-gpios = <&gpio6 26 GPIO_ACTIVE_LOW>;
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status = "okay";
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};
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// WLAN SDIO channel
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sdi1_per2@80118000 {
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arm,primecell-periphid = <0x10480180>;
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max-frequency = <100000000>;
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bus-width = <4>;
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pinctrl-names = "default", "sleep";
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pinctrl-0 = <&mc1_a_1_default>;
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pinctrl-1 = <&mc1_a_1_sleep>;
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status = "okay";
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};
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// Unused PoP eMMC - register and put it to sleep by default */
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sdi2_per3@80005000 {
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arm,primecell-periphid = <0x10480180>;
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pinctrl-names = "default";
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pinctrl-0 = <&mc2_a_1_sleep>;
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status = "okay";
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};
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// On-board eMMC
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sdi4_per2@80114000 {
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arm,primecell-periphid = <0x10480180>;
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max-frequency = <100000000>;
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bus-width = <8>;
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cap-mmc-highspeed;
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vmmc-supply = <&ab8500_ldo_aux2_reg>;
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pinctrl-names = "default", "sleep";
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pinctrl-0 = <&mc4_a_1_default>;
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pinctrl-1 = <&mc4_a_1_sleep>;
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status = "okay";
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};
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uart@80120000 {
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pinctrl-names = "default", "sleep";
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pinctrl-0 = <&u0_a_1_default>;
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pinctrl-1 = <&u0_a_1_sleep>;
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status = "okay";
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};
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/* This UART is unused and thus left disabled */
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uart@80121000 {
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pinctrl-names = "default", "sleep";
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pinctrl-0 = <&u1rxtx_a_1_default>;
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pinctrl-1 = <&u1rxtx_a_1_sleep>;
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};
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uart@80007000 {
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pinctrl-names = "default", "sleep";
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pinctrl-0 = <&u2rxtx_c_1_default>;
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pinctrl-1 = <&u2rxtx_c_1_sleep>;
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status = "okay";
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};
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i2c@80004000 {
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pinctrl-names = "default","sleep";
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pinctrl-0 = <&i2c0_a_1_default>;
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pinctrl-1 = <&i2c0_a_1_sleep>;
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status = "okay";
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};
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i2c@80122000 {
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pinctrl-names = "default","sleep";
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pinctrl-0 = <&i2c1_b_2_default>;
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pinctrl-1 = <&i2c1_b_2_sleep>;
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status = "okay";
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};
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i2c@80128000 {
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pinctrl-names = "default","sleep";
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pinctrl-0 = <&i2c2_b_2_default>;
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pinctrl-1 = <&i2c2_b_2_sleep>;
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status = "okay";
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lsm303dlh@18 {
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/* Accelerometer */
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compatible = "st,lsm303dlh-accel";
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st,drdy-int-pin = <1>;
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reg = <0x18>;
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vdd-supply = <&ab8500_ldo_aux1_reg>;
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vddio-supply = <&db8500_vsmps2_reg>;
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pinctrl-names = "default";
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pinctrl-0 = <&accel_snowball_mode>;
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interrupt-parent = <&gpio5>;
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interrupts = <3 IRQ_TYPE_EDGE_RISING>, /* INT1 */
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<4 IRQ_TYPE_EDGE_RISING>; /* INT2 */
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};
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lsm303dlh@1e {
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/* Magnetometer */
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compatible = "st,lsm303dlh-magn";
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reg = <0x1e>;
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vdd-supply = <&ab8500_ldo_aux1_reg>;
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vddio-supply = <&db8500_vsmps2_reg>;
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pinctrl-names = "default";
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pinctrl-0 = <&magneto_snowball_mode>;
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interrupt-parent = <&gpio5>;
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interrupts = <5 IRQ_TYPE_EDGE_RISING>; /* DRDY line */
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};
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l3g4200d@68 {
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/* Gyroscope */
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compatible = "st,l3g4200d-gyro";
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st,drdy-int-pin = <2>;
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reg = <0x68>;
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vdd-supply = <&ab8500_ldo_aux1_reg>;
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vddio-supply = <&db8500_vsmps2_reg>;
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pinctrl-names = "default";
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pinctrl-0 = <&gyro_snowball_mode>;
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interrupt-parent = <&gpio5>;
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interrupts = <6 IRQ_TYPE_EDGE_RISING>, /* DRDY line */
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<9 IRQ_TYPE_EDGE_RISING>; /* INT1 */
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};
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lsp001wm@5c {
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/* Barometer/pressure sensor */
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compatible = "st,lps001wp-press";
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reg = <0x5c>;
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vdd-supply = <&ab8500_ldo_aux1_reg>;
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vddio-supply = <&db8500_vsmps2_reg>;
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};
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};
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i2c@80110000 {
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pinctrl-names = "default","sleep";
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pinctrl-0 = <&i2c3_c_2_default>;
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pinctrl-1 = <&i2c3_c_2_sleep>;
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status = "okay";
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};
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spi@80002000 {
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pinctrl-names = "default";
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pinctrl-0 = <&ssp0_snowball_mode>;
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status = "okay";
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};
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prcmu@80157000 {
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ab8500 {
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ab8500-gpio {
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/*
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* AB8500 GPIOs are numbered starting from 1, so the first
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* index 0 is what in the datasheet is called "GPIO1", and
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* the second is "GPIO2" and so forth. Confusingly, the
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* Snowball schematic then names the "GPIO2" line "PM_GPIO1".
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* while later naming "GPIO4" as "PM_GPIO4".
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*/
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gpio-line-names = "", /* AB8500 GPIO1 */
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"PM_GPIO1", /* AB8500 GPIO2 */
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"WLAN_CLK_REQ", /* AB8500 GPIO3 */
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"PM_GPIO4", /* AB8500 GPIO4 */
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"", "", "", "", "", "", "", "", "", "", "",
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"EN_3V6", /* AB8500 GPIO16 */
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"", "", "", "" ,"", "", "", "", "",
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"EN_3V3", /* AB8500 GPIO26 */
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"", "", "", "", "", "", "", "", "", "", "", "", "",
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"PM_GPIO40", /* AB8500 GPIO40 */
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"PM_GPIO41", /* AB8500 GPIO41 */
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"PM_GPIO42"; /* AB8500 GPIO42 */
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};
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ab8500_usb {
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pinctrl-names = "default", "sleep";
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pinctrl-0 = <&usb_a_1_default>;
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pinctrl-1 = <&usb_a_1_sleep>;
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};
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ext_regulators: ab8500-ext-regulators {
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ab8500_ext1_reg: ab8500_ext1 {
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regulator-name = "ab8500-ext-supply1";
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};
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ab8500_ext2_reg_reg: ab8500_ext2 {
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regulator-name = "ab8500-ext-supply2";
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};
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ab8500_ext3_reg_reg: ab8500_ext3 {
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regulator-name = "ab8500-ext-supply3";
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};
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};
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ab8500-regulators {
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ab8500_ldo_aux1_reg: ab8500_ldo_aux1 {
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regulator-name = "V-DISPLAY";
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};
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ab8500_ldo_aux2_reg: ab8500_ldo_aux2 {
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regulator-name = "V-eMMC1";
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};
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ab8500_ldo_aux3_reg: ab8500_ldo_aux3 {
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regulator-name = "V-MMC-SD";
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};
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ab8500_ldo_intcore_reg: ab8500_ldo_intcore {
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regulator-name = "V-INTCORE";
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};
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ab8500_ldo_tvout_reg: ab8500_ldo_tvout {
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regulator-name = "V-TVOUT";
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};
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ab8500_ldo_audio_reg: ab8500_ldo_audio {
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regulator-name = "V-AUD";
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};
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ab8500_ldo_anamic1_reg: ab8500_ldo_anamic1 {
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regulator-name = "V-AMIC1";
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};
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ab8500_ldo_anamic2_reg: ab8500_ldo_anamic2 {
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regulator-name = "V-AMIC2";
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};
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ab8500_ldo_dmic_reg: ab8500_ldo_dmic {
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regulator-name = "V-DMIC";
|
|
};
|
|
|
|
ab8500_ldo_ana_reg: ab8500_ldo_ana {
|
|
regulator-name = "V-CSI/DSI";
|
|
};
|
|
};
|
|
};
|
|
};
|
|
|
|
pinctrl {
|
|
/*
|
|
* Set this up using hogs, as time goes by and as seems fit, these
|
|
* can be moved over to being controlled by respective device.
|
|
*/
|
|
pinctrl-names = "default";
|
|
pinctrl-0 = <&gbf_snowball_mode>,
|
|
<&wlan_snowball_mode>;
|
|
|
|
ethernet {
|
|
/*
|
|
* Mux in "SM" which is used for the
|
|
* SMSC911x Ethernet adapter
|
|
*/
|
|
eth_snowball_mode: eth_snowball {
|
|
snowball_mux {
|
|
function = "sm";
|
|
groups = "sm_b_1";
|
|
};
|
|
/* LAN IRQ pin */
|
|
snowball_cfg1 {
|
|
pins = "GPIO140_B11";
|
|
ste,config = <&in_nopull>;
|
|
};
|
|
/* LAN reset pin */
|
|
snowball_cfg2 {
|
|
pins = "GPIO141_C12";
|
|
ste,config = <&gpio_out_hi>;
|
|
};
|
|
|
|
};
|
|
};
|
|
sdi0 {
|
|
sdi0_default_mode: sdi0_default {
|
|
snowball_mux {
|
|
function = "mc0";
|
|
/* Add the DAT31 pin even if it is not really used */
|
|
groups = "mc0dat31dir_a_1";
|
|
};
|
|
snowball_cfg1 {
|
|
pins = "GPIO21_AB3"; /* DAT31DIR */
|
|
ste,config = <&out_hi>;
|
|
};
|
|
/* SD card detect GPIO pin, extend default state */
|
|
snowball_cfg2 {
|
|
pins = "GPIO218_AH11";
|
|
ste,config = <&gpio_in_pu>;
|
|
};
|
|
/* VMMCI level-shifter enable */
|
|
snowball_cfg3 {
|
|
pins = "GPIO217_AH12";
|
|
ste,config = <&gpio_out_hi>;
|
|
};
|
|
/* VMMCI level-shifter voltage select */
|
|
snowball_cfg4 {
|
|
pins = "GPIO228_AJ6";
|
|
ste,config = <&gpio_out_hi>;
|
|
};
|
|
};
|
|
};
|
|
ssp0 {
|
|
ssp0_snowball_mode: ssp0_snowball_default {
|
|
snowball_mux {
|
|
function = "ssp0";
|
|
groups = "ssp0_a_1";
|
|
};
|
|
snowball_cfg1 {
|
|
pins = "GPIO144_B13"; /* FRM */
|
|
ste,config = <&gpio_out_hi>;
|
|
};
|
|
snowball_cfg2 {
|
|
pins = "GPIO145_C13"; /* RXD */
|
|
ste,config = <&in_pd>;
|
|
};
|
|
snowball_cfg3 {
|
|
pins =
|
|
"GPIO146_D13", /* TXD */
|
|
"GPIO143_D12"; /* CLK */
|
|
ste,config = <&out_lo>;
|
|
};
|
|
|
|
};
|
|
};
|
|
gpio_led {
|
|
gpioled_snowball_mode: gpioled_default {
|
|
snowball_cfg1 {
|
|
pins = "GPIO142_C11";
|
|
ste,config = <&gpio_out_hi>;
|
|
};
|
|
|
|
};
|
|
};
|
|
accelerometer {
|
|
accel_snowball_mode: accel_snowball {
|
|
/* Accelerometer lines */
|
|
snowball_cfg1 {
|
|
pins =
|
|
"GPIO163_C20", /* ACCEL_IRQ1 */
|
|
"GPIO164_B21"; /* ACCEL_IRQ2 */
|
|
ste,config = <&gpio_in_pu>;
|
|
};
|
|
};
|
|
};
|
|
gyro {
|
|
gyro_snowball_mode: gyro_snowball {
|
|
snowball_cfg1 {
|
|
pins =
|
|
"GPIO166_A22", /* DRDY */
|
|
"GPIO169_D22"; /* INT */
|
|
ste,config = <&gpio_in_pu>;
|
|
};
|
|
};
|
|
};
|
|
magnetometer {
|
|
magneto_snowball_mode: magneto_snowball {
|
|
snowball_cfg1 {
|
|
pins = "GPIO165_C21"; /* MAG_DRDY */
|
|
ste,config = <&gpio_in_pu>;
|
|
};
|
|
};
|
|
};
|
|
gbf {
|
|
gbf_snowball_mode: gbf_snowball {
|
|
/*
|
|
* GBF (GPS, Bluetooth, FM-radio) interface,
|
|
* pull low to reset state
|
|
*/
|
|
snowball_cfg1 {
|
|
pins = "GPIO171_D23"; /* GBF_ENA_RESET */
|
|
ste,config = <&gpio_out_lo>;
|
|
};
|
|
};
|
|
};
|
|
wlan {
|
|
wlan_snowball_mode: wlan_snowball {
|
|
/*
|
|
* Activate this mode with the WLAN chip.
|
|
* These are plain GPIO pins used by WLAN
|
|
*/
|
|
snowball_cfg1 {
|
|
pins =
|
|
"GPIO161_D21", /* WLAN_PMU_EN */
|
|
"GPIO215_AH13"; /* WLAN_ENA */
|
|
ste,config = <&gpio_out_lo>;
|
|
};
|
|
snowball_cfg2 {
|
|
pins = "GPIO216_AG12"; /* WLAN_IRQ */
|
|
ste,config = <&gpio_in_pu>;
|
|
};
|
|
};
|
|
};
|
|
};
|
|
|
|
mcde@a0350000 {
|
|
pinctrl-names = "default", "sleep";
|
|
pinctrl-0 = <&lcd_default_mode>;
|
|
pinctrl-1 = <&lcd_sleep_mode>;
|
|
};
|
|
};
|
|
};
|