1// SPDX-License-Identifier: (GPL-2.0+ OR MIT) 2/* 3 * sc7280 fragment for devices with Chrome bootloader 4 * 5 * This file mainly tries to abstract out the memory protections put into 6 * place by the Chrome bootloader which are different than what's put into 7 * place by Qualcomm's typical bootloader. It also has a smattering of other 8 * things that will hold true for any conceivable Chrome design 9 * 10 * Copyright 2022 Google LLC. 11 */ 12 13/* 14 * Reserved memory changes 15 * 16 * Delete all unused memory nodes and define the peripheral memory regions 17 * required by the setup for Chrome boards. 18 */ 19 20/delete-node/ &hyp_mem; 21/delete-node/ &xbl_mem; 22/delete-node/ &reserved_xbl_uefi_log; 23/delete-node/ &sec_apps_mem; 24 25/ { 26 reserved-memory { 27 adsp_mem: memory@86700000 { 28 reg = <0x0 0x86700000 0x0 0x2800000>; 29 no-map; 30 }; 31 32 camera_mem: memory@8ad00000 { 33 reg = <0x0 0x8ad00000 0x0 0x500000>; 34 no-map; 35 }; 36 37 venus_mem: memory@8b200000 { 38 reg = <0x0 0x8b200000 0x0 0x500000>; 39 no-map; 40 }; 41 42 mpss_mem: memory@8b800000 { 43 reg = <0x0 0x8b800000 0x0 0xf600000>; 44 no-map; 45 }; 46 47 wpss_mem: memory@9ae00000 { 48 reg = <0x0 0x9ae00000 0x0 0x1900000>; 49 no-map; 50 }; 51 52 mba_mem: memory@9c700000 { 53 reg = <0x0 0x9c700000 0x0 0x200000>; 54 no-map; 55 }; 56 }; 57}; 58 59/* The PMIC PON code isn't compatible w/ how Chrome EC/BIOS handle things. */ 60&pmk8350_pon { 61 status = "disabled"; 62}; 63 64/* 65 * Chrome designs always boot from SPI flash hooked up to the qspi. 66 * 67 * It's expected that all boards will support "dual SPI" at 37.5 MHz. 68 * If some boards need a different speed or have a package that allows 69 * Quad SPI together with WP then those boards can easily override. 70 */ 71&qspi { 72 status = "okay"; 73 pinctrl-names = "default"; 74 pinctrl-0 = <&qspi_clk>, <&qspi_cs0>, <&qspi_data01>; 75 76 spi_flash: flash@0 { 77 compatible = "jedec,spi-nor"; 78 reg = <0>; 79 80 spi-max-frequency = <37500000>; 81 spi-tx-bus-width = <2>; 82 spi-rx-bus-width = <2>; 83 }; 84}; 85 86/* Modem setup is different on Chrome setups than typical Qualcomm setup */ 87&remoteproc_mpss { 88 status = "okay"; 89 compatible = "qcom,sc7280-mss-pil"; 90 iommus = <&apps_smmu 0x124 0x0>, <&apps_smmu 0x488 0x7>; 91 memory-region = <&mba_mem>, <&mpss_mem>; 92}; 93 94/* Increase the size from 2.5MB to 8MB */ 95&rmtfs_mem { 96 reg = <0x0 0x9c900000 0x0 0x800000>; 97}; 98