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[103.229.18.19]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-241d1f0fb4asm285629825ad.60.2025.08.11.21.52.19 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 11 Aug 2025 21:52:22 -0700 (PDT) From: Kathiravan Thirumoorthy Date: Tue, 12 Aug 2025 10:22:12 +0530 Subject: [PATCH v2] arm64: dts: qcom: ipq5424: Add reserved memory for TF-A Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20250812-atf-reserved-mem-v2-1-1adb94a998c1@oss.qualcomm.com> X-B4-Tracking: v=1; b=H4sIAHvImmgC/2WMSwrCMBQAr1Le2lfya4yuvIe4SNsXGzBNTWoQS u9ucOPCzcAsZjbIlDxlODcbJCo++zhXEYcGhsnOd0I/VgfBRMcMF2hXh4lqVWjEQAF7J40hqbU 7dlCzJZHz7+/yeqvuUgy4Tonsb6SF+h8VjhyV7PlJMRKmk5eYc/t82ccQQ2grYN8/4gxa/bEAA AA= X-Change-ID: 20250812-atf-reserved-mem-bf388e366f75 To: Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Vignesh Viswanathan , Konrad Dybcio , Kathiravan Thirumoorthy X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1754974339; l=1582; i=kathiravan.thirumoorthy@oss.qualcomm.com; s=20230906; h=from:subject:message-id; bh=DowvsxMqe7mQ1mJ78TGuzzaLzFMh0ArYDeyQ3gsV86g=; b=Us7HCWkCJWg1rKiAlWkEPrhYZ3A0uFb62a2GPp7wbYMVnT2K0mPgrk6ElVKisAxiKueMPmGDV umvXTqIw5+kDzHGQVsGxxoidUXkrp+81ix+Oz2p8wVOUu2/iirh/Mql X-Developer-Key: i=kathiravan.thirumoorthy@oss.qualcomm.com; a=ed25519; pk=xWsR7pL6ch+vdZ9MoFGEaP61JUaRf0XaZYWztbQsIiM= X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwODEwMDA1NyBTYWx0ZWRfX5rAqCkq/aCXP vwiUkS2kxIX4xlFIxGlcyOyKb1sL8/XK1E7M17mlRzSAPwCxGEFcfr6lPtZMJ4QiUaFSuk4k2TN xu9YugS8SQKWoCaIXK79ygR7iOhki7DB7RlwO6fvkppWxHhr76T9q7YDbqElNsjlD6/JemuX6KV 9FkDY6FYnroFvVSu0M9anKOCjdPQGldEyfP46zNQ9E4/9azYikFIdS76ZYKOzFEsaaIh6L/ykY8 mHZNkEYQIONjtY7H37tAx3ve1kviOrjM75oTTkOHy6G4NyG7cM4cvCLRh50kE/J0JebnkIw16w1 W4KYXfLSpyRM8yim2RJsSMp8sZ94+q+POSCQ2nOa10aCtKKDVYeu53CZ57nfPQYX2GpJd/DzHAq +2IWLzKw X-Proofpoint-GUID: EEa_T420cws_37RIN8q1eUivGl4PCy2q X-Authority-Analysis: v=2.4 cv=aYNhnQot c=1 sm=1 tr=0 ts=689ac888 cx=c_pps a=cmESyDAEBpBGqyK7t0alAg==:117 a=Ou0eQOY4+eZoSc0qltEV5Q==:17 a=IkcTkHD0fZMA:10 a=2OwXVqhp2XgA:10 a=VwQbUJbxAAAA:8 a=EUspDBNiAAAA:8 a=COk6AnOGAAAA:8 a=LHHpOU43DGDhQHPplI0A:9 a=QEXdDO2ut3YA:10 a=1OuFwYUASf3TG4hYMiVC:22 a=TjNXssC_j7lpFel5tvFf:22 X-Proofpoint-ORIG-GUID: EEa_T420cws_37RIN8q1eUivGl4PCy2q X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1099,Hydra:6.1.9,FMLib:17.12.80.40 definitions=2025-08-12_01,2025-08-11_01,2025-03-28_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 adultscore=0 priorityscore=1501 suspectscore=0 phishscore=0 impostorscore=0 bulkscore=0 malwarescore=0 clxscore=1015 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2507300000 definitions=main-2508100057 From: Vignesh Viswanathan IPQ5424 supports both TZ and TF-A as secure software options and various DDR sizes. In most cases, TF-A or TZ is loaded at the same memory location, but in the 256MB DDR configuration TF-A is loaded at a different region. So, add the reserved memory node for TF-A and keep it disabled by default. During bootup, U-Boot will detect which secure software is running and enable or disable the node accordingly. Signed-off-by: Vignesh Viswanathan Reviewed-by: Konrad Dybcio Signed-off-by: Kathiravan Thirumoorthy --- - Rebased on next-20250812 - Picked up R-b tag - Link to v1: https://lore.kernel.org/linux-arm-msm/20250624-atf-reserved-mem-v1-1-43b1940e2853@oss.qualcomm.com/ --- arch/arm64/boot/dts/qcom/ipq5424.dtsi | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/ipq5424.dtsi b/arch/arm64/boot/dts/qcom/ipq5424.dtsi index 2eea8a078595103ca2d3912f41e3594820b52771..e31e328bdf0e9aaaec3019e5a7bd71c7126e5fa8 100644 --- a/arch/arm64/boot/dts/qcom/ipq5424.dtsi +++ b/arch/arm64/boot/dts/qcom/ipq5424.dtsi @@ -163,6 +163,12 @@ smem@8a800000 { hwlocks = <&tcsr_mutex 3>; }; + + tfa@8a832000 { + reg = <0x0 0x8a832000 0x0 0x7d000>; + no-map; + status = "disabled"; + }; }; soc@0 { --- base-commit: 2674d1eadaa2fd3a918dfcdb6d0bb49efe8a8bb9 change-id: 20250812-atf-reserved-mem-bf388e366f75 Best regards, -- Kathiravan Thirumoorthy