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a=openpgp; fpr=957BC452CE953D7EA60CF4FC0BE9E3157A1E2C64 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250501_002011_087226_47F56EA5 X-CRM114-Status: GOOD ( 11.66 ) X-BeenThere: barebox@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "barebox" X-SA-Exim-Connect-IP: 2607:7c80:54:3::133 X-SA-Exim-Mail-From: barebox-bounces+lore=pengutronix.de@lists.infradead.org X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on metis.whiteo.stw.pengutronix.de X-Spam-Level: X-Spam-Status: No, score=-5.2 required=4.0 tests=AWL,BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,SPF_HELO_NONE,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.2 Subject: [PATCH v2] arch: arm: imx: esdctl: limit ram to 1GB on imx93 in case OPTEE is enabled X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on metis.whiteo.stw.pengutronix.de) In MX93 the ELE (Edge Lock Enclave) is limited to communicate with messages addressed under 1.5GB. The ELE can not reach the memory between (0xE0000000-0xFFFFFFFF). So we limit the usable memory in case OPTEE is used. Signed-off-by: Michael Grzeschik --- v1 -> v2: moved the limitation to be active in imx93_barebox_entry only --- arch/arm/mach-imx/esdctl.c | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-) diff --git a/arch/arm/mach-imx/esdctl.c b/arch/arm/mach-imx/esdctl.c index 701ca0ac1f3..264ba1177ec 100644 --- a/arch/arm/mach-imx/esdctl.c +++ b/arch/arm/mach-imx/esdctl.c @@ -1047,9 +1047,20 @@ void __noreturn imx7d_barebox_entry(void *boarddata) void __noreturn imx93_barebox_entry(void *boarddata) { + resource_size_t mem = 0; + imx93_init_scratch_space(false); optee_set_membase(imx_scratch_get_optee_hdr()); - barebox_arm_entry(MX9_DDR_CSD1_BASE_ADDR, - imx9_ddrc_sdram_size(), boarddata); + mem = imx9_ddrc_sdram_size(); + /* In MX93 the ELE is limited to comunicate with messages + * under 1.5GB address space. This limits the overal memory + * to be 1GB in case OPTEE is used. + */ + if (IS_ENABLED(CONFIG_PBL_OPTEE)) { + if (mem > 0x40000000) + mem = 0x40000000; + } + + barebox_arm_entry(MX9_DDR_CSD1_BASE_ADDR, mem, boarddata); } --- base-commit: 873b572763d38ab4100d218d0a3614f79b596077 change-id: 20250430-imx9optee-31d2dfc926bf Best regards, -- Michael Grzeschik