Hi, On 27/09/23 17:22, Nishanth Menon wrote: > On 13:51-20230927, Nitin Yadav wrote: >> The AM62x LP SK board is similar to the AM62x SK board, >> but has some significant changes that requires different >> device tree. >> >> The differences are mainly: >> - AM62x SoC in the AMC package that meets AECQ100 automotive standard. >> - LPDDR4 versus DDR4 on the AM62x SK. >> - TPS65219 PMIC instead of discrete regulators. >> - IO expander pin names are wired differently. >> - Second ethernet port is currently disabled as the boards do not have >> the part physically installed. >> - OSPI NAND vs OSPI NOR. >> - No WLAN chip instead a SDIO M.2 connector. >> >> Signed-off-by: Nitin Yadav <n-ya...@ti.com> >> --- >> arch/arm/dts/Makefile | 2 + >> arch/arm/dts/k3-am62-lp-sk-u-boot.dtsi | 9 + >> arch/arm/dts/k3-am62-lp-sk.dts | 231 ++ > >> arch/arm/dts/k3-am62-r5-lp-sk.dts | 21 + >> arch/arm/dts/k3-am62x-ddr-lp4-50-800-800.dtsi | 2190 +++++++++++++++++ >> 5 files changed, 2453 insertions(+) >> create mode 100644 arch/arm/dts/k3-am62-lp-sk-u-boot.dtsi >> create mode 100644 arch/arm/dts/k3-am62-lp-sk.dts >> create mode 100644 arch/arm/dts/k3-am62-r5-lp-sk.dts >> create mode 100644 arch/arm/dts/k3-am62x-ddr-lp4-50-800-800.dtsi >> >> diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile >> index bde2176ec7..72ea57885f 100644 >> --- a/arch/arm/dts/Makefile >> +++ b/arch/arm/dts/Makefile >> @@ -1337,6 +1337,8 @@ dtb-$(CONFIG_SOC_K3_AM642) += k3-am642-evm.dtb \ >> >> dtb-$(CONFIG_SOC_K3_AM625) += k3-am625-sk.dtb \ >> k3-am625-r5-sk.dtb \ >> + k3-am62-lp-sk.dtb \ >> + k3-am62-r5-lp-sk.dtb \ >> k3-am625-beagleplay.dtb \ >> k3-am625-r5-beagleplay.dtb \ >> k3-am625-verdin-wifi-dev.dtb \ >> diff --git a/arch/arm/dts/k3-am62-lp-sk-u-boot.dtsi >> b/arch/arm/dts/k3-am62-lp-sk-u-boot.dtsi >> new file mode 100644 >> index 0000000000..7da94fe4b6 >> --- /dev/null >> +++ b/arch/arm/dts/k3-am62-lp-sk-u-boot.dtsi >> @@ -0,0 +1,9 @@ >> +// SPDX-License-Identifier: GPL-2.0 >> +/* >> + * AM62x LP SK dts file for SPLs >> + * Copyright (C) 2021-2023 Texas Instruments Incorporated - >> https://www.ti.com/ >> + */ >> + >> +#include "k3-am62x-sk-common-u-boot.dtsi" >> + >> +#include "k3-am62-lp-sk-binman.dtsi" > > Are you sure you don't need the dt phase properties for regulators for > mmc to work? > >> diff --git a/arch/arm/dts/k3-am62-lp-sk.dts b/arch/arm/dts/k3-am62-lp-sk.dts > > Is this coming in from v6.6-rc1 if so document that in commit message. > > [...] > >> diff --git a/arch/arm/dts/k3-am62-r5-lp-sk.dts >> b/arch/arm/dts/k3-am62-r5-lp-sk.dts >> new file mode 100644 >> index 0000000000..ed2c028bad >> --- /dev/null >> +++ b/arch/arm/dts/k3-am62-r5-lp-sk.dts >> @@ -0,0 +1,21 @@ >> +// SPDX-License-Identifier: GPL-2.0 >> +/* >> + * AM62x LP SK dts file for R5 SPL >> + * Copyright (C) 2021-2023 Texas Instruments Incorporated - >> https://www.ti.com/ >> + */ >> + >> +#include "k3-am62-lp-sk.dts" >> +#include "k3-am62x-ddr-lp4-50-800-800.dtsi" >> +#include "k3-am62-ddr.dtsi" >> + >> +#include "k3-am62-lp-sk-u-boot.dtsi" >> +#include "k3-am62x-r5-sk-common.dtsi" >> + >> +/ { >> + memory@80000000 { >> + device_type = "memory"; >> + /* 2G RAM */ >> + reg = <0x00000000 0x80000000 0x00000000 0x80000000>; >> + bootph-pre-ram; >> + }; >> +}; > > NAK. should come from board.dts.
am62sip support is also in the queue where we have only 512M of RAM. That's why I'm adding this node in r5-sk.dts > >> diff --git a/arch/arm/dts/k3-am62x-ddr-lp4-50-800-800.dtsi >> b/arch/arm/dts/k3-am62x-ddr-lp4-50-800-800.dtsi >> new file mode 100644 >> index 0000000000..74693d12e1 >> --- /dev/null >> +++ b/arch/arm/dts/k3-am62x-ddr-lp4-50-800-800.dtsi >> @@ -0,0 +1,2190 @@ >> +// SPDX-License-Identifier: GPL-2.0+ >> +/* >> + * This file was generated with the >> + * AM62x SysConfig DDR Subsystem Register Configuration Tool v0.08.61 >> + * Tue Mar 22 2022 17:03:08 GMT-0500 (Central Daylight Time) > > Are you sure this does'nt need a sync up to latest? Thanks will sync & update. > >> + * DDR Type: LPDDR4 > > Would be good to document the exact DDR part. > >> + * F0 = 50MHz F1 = 800MHz F2 = 800MHz >> + * Density (per channel): 16Gb >> + * Number of Ranks: 1 >> + */ >> + > > [...] > -- Regards, Nitin
