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Ip=[198.47.21.195]; Helo=[flwvzet201.ext.ti.com] X-MS-Exchange-CrossTenant-AuthSource: BN3PEPF0000B06E.namprd21.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SJ0PR10MB6423 X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.39 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.103.8 at phobos.denx.de X-Virus-Status: Clean On Mon Mar 23, 2026 at 2:46 PM CDT, Robert Nelson wrote: > On Mon, Mar 23, 2026 at 2:37=E2=80=AFPM Randolph Sapp wrote: >> On Fri Mar 20, 2026 at 10:32 AM CDT, Robert Nelson wrote: >> >> > +++ b/configs/am62_pocketbeagle2_a53_defconfig >> >> > @@ -6,11 +6,11 @@ CONFIG_SPL_LIBCOMMON_SUPPORT=3Dy >> >> > CONFIG_SPL_LIBGENERIC_SUPPORT=3Dy >> >> > CONFIG_NR_DRAM_BANKS=3D1 >> >> > CONFIG_SOC_K3_AM625=3Dy [snip] >> >> > @@ -120,7 +115,8 @@ CONFIG_SYSRESET_TI_SCI=3Dy >> >> > CONFIG_EXT4_WRITE=3Dy >> >> > CONFIG_FS_FAT_MAX_CLUSTSIZE=3D16384 >> >> > CONFIG_LZO=3Dy >> >> > -CONFIG_EFI_SET_TIME=3Dy >> >> > +CONFIG_SYS_MEM_TOP_HIDE=3D0x4000000 >> >> >> >> Any reason why we are using TOP_HIDE here instead of just moving OPTE= E >> >> lower in DDR like we do on the 512MiB AM6254atl EVM? >> > >> > Sorry, that is now a legacy setting before OPTEE finally got moved in >> > v2026.01, as this had been developed thru v2025 u-boot releases.. >> > >> >> Well, it's worth noting that this change was not done in the usual way, = and >> involves user interaction during the build beyond selecting a defconfig. >> >> https://texasinstruments.github.io/processor-sdk-doc/processor-sdk-linux= -AM62X/esd/docs/master/linux/Foundational_Components_ATF.html >> https://git.ti.com/cgit/arago-project/meta-ti/tree/meta-ti-bsp/conf/mach= ine/am62xxsip-evm.conf >> >> Robert, are you alright with me making the requested changes? > > I guess as long as we document it. I know the Octavo OSD62-sip @Erik > Welsh will also be building on both am62xxsip and pocketbeagle2 based > on the 512MB and then larger memory sizes (1G, 2G, etc.). > > Regards, Oh boy, adjusting the memory maps kept getting me out of memory errors in t= he EFI flow that I knew should not be true. Found something fun: LMB reserved memory regions do not match EFI reserved memory regions. EFI's efi_carve_out_dt_rsv is setting regions to be more strict that LMB's base requirements. When this occurs and an allocation runs into this discrepancy= , that allocation and all future allocation requests in the EFI flow will beg= in to fail as they are repeatedly given the same LMB start address in the unappro= ved region. Randolph