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Ip=[198.47.21.194]; Helo=[flwvzet200.ext.ti.com] X-MS-Exchange-CrossTenant-AuthSource: CO1PEPF00012E7F.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM3PPFA9583E3CA X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMDE5MDA1MyBTYWx0ZWRfX2TI22NQj7hzU U2HsDG7XxGuxB/C2iIJu8KN9GqbCPQD9/V5CRRUgGaBIMF5TK1FrLzx74L9bmyoJqUxF+NIQUzh /ptJMukWSTjCqYt5GssnWQTaaKtCiI3vooGXY3WQZWx6jEPN6Q8wbZ5usuWmvvcrssnes3WyfwY BllhI8CHd+k4x96voUL7pHR1ox3GNlrWWx2z16HVANqn7jlS74ihlSj36vY034t9u+wXXgaoBjw duB8/SRPUTyGBnBvN28mwJg5Wzf4U/xgsD0SPDHglPcth1/tmI6aVrl8fnZfnrYaDXs8tPiOKrF V80ZOiLK92LVnFZhq55qKiL0H0xtoys7p4iYpUYAhcc9CWepwWF8ugIsMlgpkybgvvcReWxuYd+ V0oLwG6l88xdlelJttwQGaueB8NZ1E5EIONY5hnepf0N7QXBXPLQWfMaRQRZZvd3b12Zoxy0gmi gowpZK8Y1P73lfHGmvQ== X-Proofpoint-ORIG-GUID: gRBVHaA2d2vOERzY9dEQjF2zIyHEgmqX X-Proofpoint-GUID: gRBVHaA2d2vOERzY9dEQjF2zIyHEgmqX X-Authority-Analysis: v=2.4 cv=Vsa2kO2n c=1 sm=1 tr=0 ts=6ad61cbe cx=c_pps a=cXHsTeABgwIgPhuKzetQTw==:117 a=iwqwCZQqcuTv3JOpYdM7/Q==:17 a=6eWqkTHjU83fiwn7nKZWdM+Sl24=:19 a=IkcTkHD0fZMA:10 a=660iZSQnnn4A:10 a=AlMIdn_sM9wA:10 a=VkNPw1HP01LnGYTKEx00:22 a=Z8NIEmU8O1QQgoT56wFK:22 a=jwouBfj2j3NM8CExmVVE:22 a=VwQbUJbxAAAA:8 a=sozttTNsAAAA:8 a=IpJZQVW2AAAA:8 a=3TH9i9oSrZIpZTrtcu8A:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=IawgGOuG5U0WyFbmm1f5:22 X-Proofpoint-Spam-Info: AW1haW4tMjYxMDE5MDA1MyBTYWx0ZWRfX5Tc0U3axxtJV Njz2RJvWsgBV+leDmx/JYSmmjGeHgwKnBsok8JvDbMEVJPYi6JcfvPuZqVY2l5lHemGjQEgRtIi Izf5THQoDx009CJ7FDclEN28G69GPPo= X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-10-19_03,2026-10-14_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 priorityscore=1501 bulkscore=0 suspectscore=0 spamscore=0 phishscore=0 lowpriorityscore=0 adultscore=0 malwarescore=0 impostorscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2610080000 definitions=main-2610190053 X-BeenThere: u-boot@lists.u-boot-project.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.u-boot-project.org On 10/19/2026 5:46 PM, Richard GENOUD wrote: > Le 17/10/2026 à 04:40, Kumar, Udit a écrit : >> >> >> On 10/16/2026 2:35 PM, Markus Schneider-Pargmann wrote: >>> On HS-SE platforms TIFS takes longer to initialize. TIFS only removes >>> the firewall on the registers at the end of initialization. On HS-SE the >>> U-Boot ctrl_mmr_unlock() can happen before TIFS removed the firewall >>> leading to a race condition. This leads to a broken watchdog since the >>> signal configuration doesn't succeed because the write doesn't take >>> effect. >>> >>> Wait for TIFS to be initialized using k3_sysfw_wait_ready() before doing >>> ctrl_mmr_unlock(). Note that spl_early_init() needs to be done first to >>> setup DM. >>> >>> Link: https://lore.kernel.org/u-boot/20250815160240.3575140-1- >>> d.schultz@phytec.de/ >>> Link: https://lore.kernel.org/u-boot/20260225051559.416445-1-u- >>> kumar1@ti.com/ >>> Signed-off-by: Markus Schneider-Pargmann >>> --- >> >> I have tested on J722S hs-fs and hs-se devices, >> Post this patch wdt reset got functional on hs-se device. >> >> So for this patch >> >> Tested-by: Udit Kumar >> > I tested it on my LPM series with j722s HS-FS, and I still need a > ctrl_mmr_unlock() before spl_early_init() and also another after > k3_sysfw_print_ver() otherwise querying pmic fails. > Thanks Richard for testing LPM flow. I realized now, you need PMIC which is probed in spl_early_init(), so MMR has to be unlocked before this call. However below patch fixes wdt flow in HS_SE devices. > Regards, > Richard > >>>   arch/arm/mach-k3/j722s/j722s_init.c | 5 +++-- >>>   1 file changed, 3 insertions(+), 2 deletions(-) >>> >>> diff --git a/arch/arm/mach-k3/j722s/j722s_init.c b/arch/arm/mach-k3/ >>> j722s/j722s_init.c >>> index 1180c75f551d..c15b3b2682d9 100644 >>> --- a/arch/arm/mach-k3/j722s/j722s_init.c >>> +++ b/arch/arm/mach-k3/j722s/j722s_init.c >>> @@ -84,13 +84,14 @@ static void k3_spl_init(void) >>>        */ >>>       store_boot_info_from_rom(); >>>   -    ctrl_mmr_unlock(); >>> - >>>       /* Init DM early */ >>>       ret = spl_early_init(); >>>       if (ret) >>>           panic("spl_early_init() failed: %d\n", ret); >>>   +    k3_sysfw_wait_ready(); >>> +    ctrl_mmr_unlock(); >>> + >>>       /* >>>        * Process pinctrl for the serial0 a.k.a. WKUP_UART0 module and >>> continue >>>        * regardless of the result of pinctrl. Do this without probing >>> the >>> >> > >