0001 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
0002 /*
0003 * sc7280 fragment for devices with Chrome bootloader
0004 *
0005 * This file mainly tries to abstract out the memory protections put into
0006 * place by the Chrome bootloader which are different than what's put into
0007 * place by Qualcomm's typical bootloader. It also has a smattering of other
0008 * things that will hold true for any conceivable Chrome design
0009 *
0010 * Copyright 2022 Google LLC.
0011 */
0012
0013 /*
0014 * Reserved memory changes
0015 *
0016 * Delete all unused memory nodes and define the peripheral memory regions
0017 * required by the setup for Chrome boards.
0018 */
0019
0020 /delete-node/ &hyp_mem;
0021 /delete-node/ &xbl_mem;
0022 /delete-node/ &reserved_xbl_uefi_log;
0023 /delete-node/ &sec_apps_mem;
0024
0025 / {
0026 reserved-memory {
0027 adsp_mem: memory@86700000 {
0028 reg = <0x0 0x86700000 0x0 0x2800000>;
0029 no-map;
0030 };
0031
0032 camera_mem: memory@8ad00000 {
0033 reg = <0x0 0x8ad00000 0x0 0x500000>;
0034 no-map;
0035 };
0036
0037 venus_mem: memory@8b200000 {
0038 reg = <0x0 0x8b200000 0x0 0x500000>;
0039 no-map;
0040 };
0041
0042 mpss_mem: memory@8b800000 {
0043 reg = <0x0 0x8b800000 0x0 0xf600000>;
0044 no-map;
0045 };
0046
0047 wpss_mem: memory@9ae00000 {
0048 reg = <0x0 0x9ae00000 0x0 0x1900000>;
0049 no-map;
0050 };
0051
0052 mba_mem: memory@9c700000 {
0053 reg = <0x0 0x9c700000 0x0 0x200000>;
0054 no-map;
0055 };
0056 };
0057 };
0058
0059 /* The PMIC PON code isn't compatible w/ how Chrome EC/BIOS handle things. */
0060 &pmk8350_pon {
0061 status = "disabled";
0062 };
0063
0064 /*
0065 * Chrome designs always boot from SPI flash hooked up to the qspi.
0066 *
0067 * It's expected that all boards will support "dual SPI" at 37.5 MHz.
0068 * If some boards need a different speed or have a package that allows
0069 * Quad SPI together with WP then those boards can easily override.
0070 */
0071 &qspi {
0072 status = "okay";
0073 pinctrl-names = "default";
0074 pinctrl-0 = <&qspi_clk>, <&qspi_cs0>, <&qspi_data01>;
0075
0076 spi_flash: flash@0 {
0077 compatible = "jedec,spi-nor";
0078 reg = <0>;
0079
0080 spi-max-frequency = <37500000>;
0081 spi-tx-bus-width = <2>;
0082 spi-rx-bus-width = <2>;
0083 };
0084 };
0085
0086 /* Modem setup is different on Chrome setups than typical Qualcomm setup */
0087 &remoteproc_mpss {
0088 status = "okay";
0089 compatible = "qcom,sc7280-mss-pil";
0090 iommus = <&apps_smmu 0x124 0x0>, <&apps_smmu 0x488 0x7>;
0091 interconnects = <&mc_virt MASTER_LLCC 0 &mc_virt SLAVE_EBI1 0>;
0092 memory-region = <&mba_mem>, <&mpss_mem>;
0093 firmware-name = "qcom/sc7280-herobrine/modem/mba.mbn",
0094 "qcom/sc7280-herobrine/modem/qdsp6sw.mbn";
0095 };
0096
0097 &remoteproc_wpss {
0098 status = "okay";
0099 firmware-name = "ath11k/WCN6750/hw1.0/wpss.mdt";
0100 };
0101
0102 /* Increase the size from 2.5MB to 8MB */
0103 &rmtfs_mem {
0104 reg = <0x0 0x9c900000 0x0 0x800000>;
0105 };
0106
0107 &wifi {
0108 status = "okay";
0109
0110 wifi-firmware {
0111 iommus = <&apps_smmu 0x1c02 0x1>;
0112 };
0113 };
