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Diffstat (limited to 'dts/src/arm64/qcom/sc7280-chrome-common.dtsi')
| -rw-r--r-- | dts/src/arm64/qcom/sc7280-chrome-common.dtsi | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/dts/src/arm64/qcom/sc7280-chrome-common.dtsi b/dts/src/arm64/qcom/sc7280-chrome-common.dtsi new file mode 100644 index 0000000000..c4d00a81da --- /dev/null +++ b/dts/src/arm64/qcom/sc7280-chrome-common.dtsi @@ -0,0 +1,152 @@ +// SPDX-License-Identifier: (GPL-2.0+ OR MIT) +/* + * sc7280 fragment for devices with Chrome bootloader + * + * This file mainly tries to abstract out the memory protections put into + * place by the Chrome bootloader which are different than what's put into + * place by Qualcomm's typical bootloader. It also has a smattering of other + * things that will hold true for any conceivable Chrome design + * + * Copyright 2022 Google LLC. + */ + +/* + * Reserved memory changes + * + * Delete all unused memory nodes and define the peripheral memory regions + * required by the setup for Chrome boards. + */ + +/delete-node/ &cdsp_mem; +/delete-node/ &gpu_zap_mem; +/delete-node/ &gpu_zap_shader; +/delete-node/ &hyp_mem; +/delete-node/ &xbl_mem; +/delete-node/ &reserved_xbl_uefi_log; +/delete-node/ &sec_apps_mem; + +/ { + reserved-memory { + camera_mem: memory@8ad00000 { + reg = <0x0 0x8ad00000 0x0 0x500000>; + no-map; + }; + + venus_mem: memory@8b200000 { + reg = <0x0 0x8b200000 0x0 0x500000>; + no-map; + }; + }; +}; + +&lpass_aon { + status = "okay"; +}; + +&lpass_core { + status = "okay"; +}; + +&lpass_hm { + status = "okay"; +}; + +&lpasscc { + status = "okay"; +}; + +&pdc_reset { + status = "okay"; +}; + +/* The PMIC PON code isn't compatible w/ how Chrome EC/BIOS handle things. */ +&pmk8350_pon { + status = "disabled"; +}; + +/* + * Chrome designs always boot from SPI flash hooked up to the qspi. + * + * It's expected that all boards will support "dual SPI" at 37.5 MHz. + * If some boards need a different speed or have a package that allows + * Quad SPI together with WP then those boards can easily override. + */ +&qspi { + status = "okay"; + pinctrl-names = "default", "sleep"; + pinctrl-0 = <&qspi_clk>, <&qspi_cs0>, <&qspi_data0>, <&qspi_data1>; + pinctrl-1 = <&qspi_sleep>; + + spi_flash: flash@0 { + compatible = "jedec,spi-nor"; + reg = <0>; + + spi-max-frequency = <37500000>; + spi-tx-bus-width = <2>; + spi-rx-bus-width = <2>; + }; +}; + +/* Currently not used */ +&remoteproc_cdsp { + /delete-property/ memory-region; +}; + +&remoteproc_wpss { + compatible = "qcom,sc7280-wpss-pil"; + clocks = <&gcc GCC_WPSS_AHB_BDG_MST_CLK>, + <&gcc GCC_WPSS_AHB_CLK>, + <&gcc GCC_WPSS_RSCP_CLK>, + <&rpmhcc RPMH_CXO_CLK>; + clock-names = "ahb_bdg", + "ahb", + "rscp", + "xo"; + + resets = <&aoss_reset AOSS_CC_WCSS_RESTART>, + <&pdc_reset PDC_WPSS_SYNC_RESET>; + reset-names = "restart", "pdc_sync"; + + qcom,halt-regs = <&tcsr_1 0x17000>; + + firmware-name = "ath11k/WCN6750/hw1.0/wpss.mdt"; + + status = "okay"; +}; + +&scm { + /* TF-A firmware maps memory cached so mark dma-coherent to match. */ + dma-coherent; +}; + +&watchdog { + status = "okay"; +}; + +&wifi { + status = "okay"; + + wifi-firmware { + iommus = <&apps_smmu 0x1c02 0x1>; + }; +}; + +/* PINCTRL - chrome-common pinctrl */ + +&tlmm { + qspi_sleep: qspi-sleep-state { + pins = "gpio12", "gpio13", "gpio14", "gpio15"; + + /* + * When we're not actively transferring we want pins as GPIOs + * with output disabled so that the quad SPI IP block stops + * driving them. We rely on the normal pulls configured in + * the active state and don't redefine them here. Also note + * that we don't need the reverse (output-enable) in the + * normal mode since the "output-enable" only matters for + * GPIO function. + */ + function = "gpio"; + output-disable; + }; +}; |