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Thu, 22 Oct 2026 03:16:06 -0700 (PDT) Received: from hermes.tailscale.baylibre.com ([2001:4090:a244:81d0:bc85:7836:468a:a1a8]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-48e2583ffa8sm11693939f8f.51.2026.10.22.03.16.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 22 Oct 2026 03:16:05 -0700 (PDT) From: Markus Schneider-Pargmann To: "Kumar, Udit" , Richard GENOUD , Markus Schneider-Pargmann Cc: Tom Rini , Ilias Apalodimas , Daniel Schultz , Anshul Dalal , Aristo Chen , u-boot@lists.u-boot-project.org Subject: [PATCH 3/3] WIP: arm: mach-k3: j722s: Wait for TIFS initialization Date: Thu, 22 Oct 2026 12:15:58 +0200 Message-ID: <20261022101558.2474326-3-msp@baylibre.com> X-Mailer: git-send-email 2.56.0 In-Reply-To: <20261022101558.2474326-1-msp@baylibre.com> References: <51c23f5b-9ca2-4ebe-8f3e-72d22e404617@ti.com> <20261022101558.2474326-1-msp@baylibre.com> X-Archived-By: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: u-boot@lists.u-boot-project.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: U-Boot discussion List-Archive: List-Post: List-Help: List-Subscribe: , X-Spam-Status: No, score=-18.9 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=4.0.1 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 Signed-off-by: Markus Schneider-Pargmann --- arch/arm/mach-k3/Kconfig | 1 + arch/arm/mach-k3/j722s/j722s_init.c | 20 +++++++++++++++++--- 2 files changed, 18 insertions(+), 3 deletions(-) diff --git a/arch/arm/mach-k3/Kconfig b/arch/arm/mach-k3/Kconfig index a32ed3a9683f..ec3e95c11a39 100644 --- a/arch/arm/mach-k3/Kconfig +++ b/arch/arm/mach-k3/Kconfig @@ -30,6 +30,7 @@ config SOC_K3_J721S2 config SOC_K3_J722S bool "TI's K3 based J722S SoC Family Support" + select SPL_DM_EVENT if SPL config SOC_K3_J784S4 bool "TI's K3 based J784S4 SoC Family Support" diff --git a/arch/arm/mach-k3/j722s/j722s_init.c b/arch/arm/mach-k3/j722s/j722s_init.c index 1180c75f551d..685c4d98a8a5 100644 --- a/arch/arm/mach-k3/j722s/j722s_init.c +++ b/arch/arm/mach-k3/j722s/j722s_init.c @@ -11,6 +11,7 @@ #include #include #include +#include #include "../sysfw-loader.h" #include "../common.h" @@ -70,6 +71,18 @@ static void ctrl_mmr_unlock(void) mmr_unlock(PADCFG_MMR1_BASE, 1); } +/* + * Called by spl_early_init() before anything is probed. + */ +static int k3_spl_dm_post_init_f(void) +{ + k3_sysfw_wait_ready(); + ctrl_mmr_unlock(); + + return 0; +} +EVENT_SPY_SIMPLE(EVT_DM_POST_INIT_F, k3_spl_dm_post_init_f); + static void k3_spl_init(void) { struct udevice *dev; @@ -84,9 +97,10 @@ static void k3_spl_init(void) */ store_boot_info_from_rom(); - ctrl_mmr_unlock(); - - /* Init DM early */ + /* + * Init DM early. Note that this calls k3_spl_dm_post_init_f before + * probing to do ctrl_mmr_unlock. + */ ret = spl_early_init(); if (ret) panic("spl_early_init() failed: %d\n", ret); -- 2.56.0