[PATCH v4 00/10] Add Modem support on SC7280 SoCs

[PATCH v4 00/10] Add Modem support on SC7280 SoCs

[Sibi Sankar]

This patch series adds support for booting the Modem Q6 DSP found on
Qualcomm's SC7280 SoCs.

Depends on:
qmp_send: https://patchwork.kernel.org/project/linux-arm-msm/cover/1630420228-31075-1-git-send-email-deesin@codeaurora.org/
rproc qmp: https://patchwork.kernel.org/project/linux-arm-msm/cover/1630916637-4278-1-git-send-email-sibis@codeaurora.org/

V4:
 * Rebased to linux-next and picked up Rbs.
 * Fixed typo (patch 10).

V3:
 * Keep the memory map version in commit message (patch 6). [Bjorn]
 * Rename tcsr node and add qualifying compatibles to tcsr and imem nodes
   (patch 8). [Bjorn]
 * Place remoteproc_mpss node in alphabetical order above pinctrl
   section (patch 10). [Stephen]

V2:
 * Misc. typos (patch 3). [Matthias]
 * Document the q-channel takedown procedure (patch 5). [Matthias]
 * Split reserved memory updates between SoC and platform (patch 6). [Matthias]

Sibi Sankar (10):
  dt-bindings: remoteproc: qcom: pas: Add SC7280 MPSS support
  remoteproc: qcom: pas: Add SC7280 Modem support
  dt-bindings: remoteproc: qcom: Update Q6V5 Modem PIL binding
  iommu/arm-smmu-qcom: Request direct mapping for modem device
  remoteproc: mss: q6v5-mss: Add modem support on SC7280
  arm64: dts: qcom: sc7280: Update reserved memory map
  arm64: dts: qcom: sc7280: Add/Delete/Update reserved memory nodes
  arm64: dts: qcom: sc7280: Add nodes to boot modem
  arm64: dts: qcom: sc7280: Add Q6V5 MSS node
  arm64: dts: qcom: sc7280: Update Q6V5 MSS node

 .../devicetree/bindings/remoteproc/qcom,adsp.yaml  |   6 +
 .../devicetree/bindings/remoteproc/qcom,q6v5.txt   |  32 ++-
 arch/arm64/boot/dts/qcom/sc7280-idp.dtsi           |  59 +++++
 arch/arm64/boot/dts/qcom/sc7280.dtsi               | 106 +++++++++
 drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c         |   1 +
 drivers/remoteproc/qcom_q6v5_mss.c                 | 252 ++++++++++++++++++++-
 drivers/remoteproc/qcom_q6v5_pas.c                 |   1 +
 7 files changed, 451 insertions(+), 6 deletions(-)

-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project

[PATCH v4 01/10] dt-bindings: remoteproc: qcom: pas: Add SC7280 MPSS support

[Sibi Sankar]

Add MPSS PAS support for SC7280 SoCs.

Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
---
 Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml b/Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml
index 0d2b5bd4907a..68ee7febddd9 100644
--- a/Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml
+++ b/Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml
@@ -25,6 +25,7 @@ properties:
       - qcom,qcs404-cdsp-pas
       - qcom,qcs404-wcss-pas
       - qcom,sc7180-mpss-pas
+      - qcom,sc7280-mpss-pas
       - qcom,sc8180x-adsp-pas
       - qcom,sc8180x-cdsp-pas
       - qcom,sc8180x-mpss-pas
@@ -151,6 +152,7 @@ allOf:
               - qcom,msm8998-adsp-pas
               - qcom,qcs404-adsp-pas
               - qcom,qcs404-wcss-pas
+              - qcom,sc7280-mpss-pas
               - qcom,sc8180x-adsp-pas
               - qcom,sc8180x-cdsp-pas
               - qcom,sc8180x-mpss-pas
@@ -296,6 +298,7 @@ allOf:
           contains:
             enum:
               - qcom,sc7180-mpss-pas
+              - qcom,sc7280-mpss-pas
               - qcom,sc8180x-mpss-pas
               - qcom,sdx55-mpss-pas
               - qcom,sm8150-mpss-pas
@@ -400,6 +403,7 @@ allOf:
         compatible:
           contains:
             enum:
+              - qcom,sc7280-mpss-pas
               - qcom,sdx55-mpss-pas
               - qcom,sm8150-mpss-pas
               - qcom,sm8350-mpss-pas
@@ -475,6 +479,7 @@ allOf:
           contains:
             enum:
               - qcom,sc7180-mpss-pas
+              - qcom,sc7280-mpss-pas
     then:
       properties:
         resets:
@@ -492,6 +497,7 @@ allOf:
           contains:
             enum:
               - qcom,sc7180-mpss-pas
+              - qcom,sc7280-mpss-pas
               - qcom,sc8180x-adsp-pas
               - qcom,sc8180x-cdsp-pas
               - qcom,sc8180x-mpss-pas
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project

[PATCH v4 02/10] remoteproc: qcom: pas: Add SC7280 Modem support

[Sibi Sankar]

Add support for booting the Modem DSP found on QTI SC7280 SoCs.

Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
---
 drivers/remoteproc/qcom_q6v5_pas.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/remoteproc/qcom_q6v5_pas.c b/drivers/remoteproc/qcom_q6v5_pas.c
index 7036e6e9eff4..89c889c041e5 100644
--- a/drivers/remoteproc/qcom_q6v5_pas.c
+++ b/drivers/remoteproc/qcom_q6v5_pas.c
@@ -783,6 +783,7 @@ static const struct of_device_id adsp_of_match[] = {
 	{ .compatible = "qcom,qcs404-cdsp-pas", .data = &cdsp_resource_init },
 	{ .compatible = "qcom,qcs404-wcss-pas", .data = &wcss_resource_init },
 	{ .compatible = "qcom,sc7180-mpss-pas", .data = &mpss_resource_init},
+	{ .compatible = "qcom,sc7280-mpss-pas", .data = &mpss_resource_init},
 	{ .compatible = "qcom,sc8180x-adsp-pas", .data = &sm8150_adsp_resource},
 	{ .compatible = "qcom,sc8180x-cdsp-pas", .data = &sm8150_cdsp_resource},
 	{ .compatible = "qcom,sc8180x-mpss-pas", .data = &sc8180x_mpss_resource},
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project

[PATCH v4 03/10] dt-bindings: remoteproc: qcom: Update Q6V5 Modem PIL binding

[Sibi Sankar]

Add a new modem compatible string for QTI SC7280 SoCs and introduce the
"qcom,ext-regs" and "qcom,qaccept-regs" properties needed by the modem
sub-system running on SC7280 SoCs.

Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
---
 .../devicetree/bindings/remoteproc/qcom,q6v5.txt   | 32 ++++++++++++++++++++--
 1 file changed, 30 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/remoteproc/qcom,q6v5.txt b/Documentation/devicetree/bindings/remoteproc/qcom,q6v5.txt
index 494257010629..bc1394f5d677 100644
--- a/Documentation/devicetree/bindings/remoteproc/qcom,q6v5.txt
+++ b/Documentation/devicetree/bindings/remoteproc/qcom,q6v5.txt
@@ -15,6 +15,7 @@ on the Qualcomm Hexagon core.
 		    "qcom,msm8996-mss-pil"
 		    "qcom,msm8998-mss-pil"
 		    "qcom,sc7180-mss-pil"
+		    "qcom,sc7280-mss-pil"
 		    "qcom,sdm845-mss-pil"
 
 - reg:
@@ -47,6 +48,7 @@ on the Qualcomm Hexagon core.
 	qcom,msm8996-mss-pil:
 	qcom,msm8998-mss-pil:
 	qcom,sc7180-mss-pil:
+	qcom,sc7280-mss-pil:
 	qcom,sdm845-mss-pil:
 		    must be "wdog", "fatal", "ready", "handover", "stop-ack",
 		    "shutdown-ack"
@@ -87,6 +89,8 @@ on the Qualcomm Hexagon core.
 	qcom,sc7180-mss-pil:
 		    must be "iface", "bus", "xo", "snoc_axi", "mnoc_axi",
 		    "nav"
+	qcom,sc7280-mss-pil:
+		    must be "iface", "xo", "snoc_axi", "offline"
 	qcom,sdm845-mss-pil:
 		    must be "iface", "bus", "mem", "xo", "gpll0_mss",
 		    "snoc_axi", "mnoc_axi", "prng"
@@ -98,7 +102,7 @@ on the Qualcomm Hexagon core.
 		    reference to the list of 3 reset-controllers for the
 		    wcss sub-system
 		    reference to the list of 2 reset-controllers for the modem
-		    sub-system on SC7180, SDM845 SoCs
+		    sub-system on SC7180, SC7280, SDM845 SoCs
 
 - reset-names:
 	Usage: required
@@ -107,7 +111,7 @@ on the Qualcomm Hexagon core.
 		    must be "wcss_aon_reset", "wcss_reset", "wcss_q6_reset"
 		    for the wcss sub-system
 		    must be "mss_restart", "pdc_reset" for the modem
-		    sub-system on SC7180, SDM845 SoCs
+		    sub-system on SC7180, SC7280, SDM845 SoCs
 
 For devices where the mba and mpss sub-nodes are not specified, mba/mpss region
 should be referenced as follows:
@@ -173,6 +177,9 @@ For the compatible string below the following supplies are required:
 	qcom,msm8998-mss-pil:
 		    must be "cx", "mx"
 	qcom,sc7180-mss-pil:
+		    must be "cx", "mx", "mss"
+	qcom,sc7280-mss-pil:
+		    must be "cx", "mss"
 	qcom,sdm845-mss-pil:
 		    must be "cx", "mx", "mss"
 
@@ -198,6 +205,9 @@ For the compatible string below the following supplies are required:
 	Definition: a phandle reference to a syscon representing TCSR followed
 		    by the three offsets within syscon for q6, modem and nc
 		    halt registers.
+		    a phandle reference to a syscon representing TCSR followed
+		    by the four offsets within syscon for q6, modem, nc and vq6
+		    halt registers on SC7280 SoCs.
 
 For the compatible strings below the following phandle references are required:
   "qcom,sc7180-mss-pil"
@@ -208,6 +218,24 @@ For the compatible strings below the following phandle references are required:
 		    by the offset within syscon for conn_box_spare0 register
 		    used by the modem sub-system running on SC7180 SoC.
 
+For the compatible strings below the following phandle references are required:
+  "qcom,sc7280-mss-pil"
+- qcom,ext-regs:
+	Usage: required
+	Value type: <prop-encoded-array>
+	Definition: two phandle references to syscons representing TCSR_REG and
+		    TCSR register space followed by the two offsets within the syscon
+		    to force_clk_en/rscc_disable and axim1_clk_off/crypto_clk_off
+		    registers respectively.
+
+- qcom,qaccept-regs:
+	Usage: required
+	Value type: <prop-encoded-array>
+	Definition: a phandle reference to a syscon representing TCSR followed
+		    by the three offsets within syscon for mdm, cx and axi
+		    qaccept registers used by the modem sub-system running on
+		    SC7280 SoC.
+
 The Hexagon node must contain iommus property as described in ../iommu/iommu.txt
 on platforms which do not have TrustZone.
 
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project

[PATCH v4 04/10] iommu/arm-smmu-qcom: Request direct mapping for modem device

[Sibi Sankar]

The SID configuration requirement for Modem on SC7280 is similar to the
ones found on SC7180/SDM845 SoCs. So, add the SC7280 modem compatible to
the list to defer the programming of the modem SIDs to the kernel.

Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Reviewed-by: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
---
 drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c
index 55690af1b25d..3b9b46fca0b3 100644
--- a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c
+++ b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c
@@ -231,6 +231,7 @@ static const struct of_device_id qcom_smmu_client_of_match[] __maybe_unused = {
 	{ .compatible = "qcom,sc7180-mdss" },
 	{ .compatible = "qcom,sc7180-mss-pil" },
 	{ .compatible = "qcom,sc7280-mdss" },
+	{ .compatible = "qcom,sc7280-mss-pil" },
 	{ .compatible = "qcom,sc8180x-mdss" },
 	{ .compatible = "qcom,sdm845-mdss" },
 	{ .compatible = "qcom,sdm845-mss-pil" },
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project

[PATCH v4 05/10] remoteproc: mss: q6v5-mss: Add modem support on SC7280

[Sibi Sankar]

Add out of reset sequence support for modem sub-system on SC7280 SoCs.
It requires access to an additional set of qaccept registers, external
power/clk control registers and halt vq6 register to put the modem back
into reset.

Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
---
 drivers/remoteproc/qcom_q6v5_mss.c | 252 ++++++++++++++++++++++++++++++++++++-
 1 file changed, 248 insertions(+), 4 deletions(-)

diff --git a/drivers/remoteproc/qcom_q6v5_mss.c b/drivers/remoteproc/qcom_q6v5_mss.c
index 7a1422bd7925..90ff712f912c 100644
--- a/drivers/remoteproc/qcom_q6v5_mss.c
+++ b/drivers/remoteproc/qcom_q6v5_mss.c
@@ -77,6 +77,14 @@
 
 #define HALT_ACK_TIMEOUT_US		100000
 
+/* QACCEPT Register Offsets */
+#define QACCEPT_ACCEPT_REG		0x0
+#define QACCEPT_ACTIVE_REG		0x4
+#define QACCEPT_DENY_REG		0x8
+#define QACCEPT_REQ_REG			0xC
+
+#define QACCEPT_TIMEOUT_US		50
+
 /* QDSP6SS_RESET */
 #define Q6SS_STOP_CORE			BIT(0)
 #define Q6SS_CORE_ARES			BIT(1)
@@ -143,6 +151,9 @@ struct rproc_hexagon_res {
 	bool has_alt_reset;
 	bool has_mba_logs;
 	bool has_spare_reg;
+	bool has_qaccept_regs;
+	bool has_ext_cntl_regs;
+	bool has_vq6;
 };
 
 struct q6v5 {
@@ -158,8 +169,18 @@ struct q6v5 {
 	u32 halt_q6;
 	u32 halt_modem;
 	u32 halt_nc;
+	u32 halt_vq6;
 	u32 conn_box;
 
+	u32 qaccept_mdm;
+	u32 qaccept_cx;
+	u32 qaccept_axi;
+
+	u32 axim1_clk_off;
+	u32 crypto_clk_off;
+	u32 force_clk_on;
+	u32 rscc_disable;
+
 	struct reset_control *mss_restart;
 	struct reset_control *pdc_reset;
 
@@ -201,6 +222,9 @@ struct q6v5 {
 	bool has_alt_reset;
 	bool has_mba_logs;
 	bool has_spare_reg;
+	bool has_qaccept_regs;
+	bool has_ext_cntl_regs;
+	bool has_vq6;
 	int mpss_perm;
 	int mba_perm;
 	const char *hexagon_mdt_image;
@@ -213,6 +237,7 @@ enum {
 	MSS_MSM8996,
 	MSS_MSM8998,
 	MSS_SC7180,
+	MSS_SC7280,
 	MSS_SDM845,
 };
 
@@ -473,6 +498,12 @@ static int q6v5_reset_assert(struct q6v5 *qproc)
 		regmap_update_bits(qproc->conn_map, qproc->conn_box,
 				   AXI_GATING_VALID_OVERRIDE, 0);
 		ret = reset_control_deassert(qproc->mss_restart);
+	} else if (qproc->has_ext_cntl_regs) {
+		regmap_write(qproc->conn_map, qproc->rscc_disable, 0);
+		reset_control_assert(qproc->pdc_reset);
+		reset_control_assert(qproc->mss_restart);
+		reset_control_deassert(qproc->pdc_reset);
+		ret = reset_control_deassert(qproc->mss_restart);
 	} else {
 		ret = reset_control_assert(qproc->mss_restart);
 	}
@@ -490,7 +521,7 @@ static int q6v5_reset_deassert(struct q6v5 *qproc)
 		ret = reset_control_reset(qproc->mss_restart);
 		writel(0, qproc->rmb_base + RMB_MBA_ALT_RESET);
 		reset_control_deassert(qproc->pdc_reset);
-	} else if (qproc->has_spare_reg) {
+	} else if (qproc->has_spare_reg || qproc->has_ext_cntl_regs) {
 		ret = reset_control_reset(qproc->mss_restart);
 	} else {
 		ret = reset_control_deassert(qproc->mss_restart);
@@ -604,7 +635,7 @@ static int q6v5proc_reset(struct q6v5 *qproc)
 		}
 
 		goto pbl_wait;
-	} else if (qproc->version == MSS_SC7180) {
+	} else if (qproc->version == MSS_SC7180 || qproc->version == MSS_SC7280) {
 		val = readl(qproc->reg_base + QDSP6SS_SLEEP);
 		val |= Q6SS_CBCR_CLKEN;
 		writel(val, qproc->reg_base + QDSP6SS_SLEEP);
@@ -787,6 +818,89 @@ static int q6v5proc_reset(struct q6v5 *qproc)
 	return ret;
 }
 
+static int q6v5proc_enable_qchannel(struct q6v5 *qproc, struct regmap *map, u32 offset)
+{
+	unsigned int val;
+	int ret;
+
+	if (!qproc->has_qaccept_regs)
+		return 0;
+
+	if (qproc->has_ext_cntl_regs) {
+		regmap_write(qproc->conn_map, qproc->rscc_disable, 0);
+		regmap_write(qproc->conn_map, qproc->force_clk_on, 1);
+
+		ret = regmap_read_poll_timeout(qproc->halt_map, qproc->axim1_clk_off, val,
+					       !val, 1, Q6SS_CBCR_TIMEOUT_US);
+		if (ret) {
+			dev_err(qproc->dev, "failed to enable axim1 clock\n");
+			return -ETIMEDOUT;
+		}
+	}
+
+	regmap_write(map, offset + QACCEPT_REQ_REG, 1);
+
+	/* Wait for accept */
+	ret = regmap_read_poll_timeout(map, offset + QACCEPT_ACCEPT_REG, val, val, 5,
+				       QACCEPT_TIMEOUT_US);
+	if (ret) {
+		dev_err(qproc->dev, "qchannel enable failed\n");
+		return -ETIMEDOUT;
+	}
+
+	return 0;
+}
+
+static void q6v5proc_disable_qchannel(struct q6v5 *qproc, struct regmap *map, u32 offset)
+{
+	int ret;
+	unsigned int val, retry;
+	unsigned int nretry = 10;
+	bool takedown_complete = false;
+
+	if (!qproc->has_qaccept_regs)
+		return;
+
+	while (!takedown_complete && nretry) {
+		nretry--;
+
+		/* Wait for active transactions to complete */
+		regmap_read_poll_timeout(map, offset + QACCEPT_ACTIVE_REG, val, !val, 5,
+					 QACCEPT_TIMEOUT_US);
+
+		/* Request Q-channel transaction takedown */
+		regmap_write(map, offset + QACCEPT_REQ_REG, 0);
+
+		/*
+		 * If the request is denied, reset the Q-channel takedown request,
+		 * wait for active transactions to complete and retry takedown.
+		 */
+		retry = 10;
+		while (retry) {
+			usleep_range(5, 10);
+			retry--;
+			ret = regmap_read(map, offset + QACCEPT_DENY_REG, &val);
+			if (!ret && val) {
+				regmap_write(map, offset + QACCEPT_REQ_REG, 1);
+				break;
+			}
+
+			ret = regmap_read(map, offset + QACCEPT_ACCEPT_REG, &val);
+			if (!ret && !val) {
+				takedown_complete = true;
+				break;
+			}
+		}
+
+		if (!retry)
+			break;
+	}
+
+	/* Rely on mss_restart to clear out pending transactions on takedown failure */
+	if (!takedown_complete)
+		dev_err(qproc->dev, "qchannel takedown failed\n");
+}
+
 static void q6v5proc_halt_axi_port(struct q6v5 *qproc,
 				   struct regmap *halt_map,
 				   u32 offset)
@@ -950,6 +1064,12 @@ static int q6v5_mba_load(struct q6v5 *qproc)
 		goto assert_reset;
 	}
 
+	ret = q6v5proc_enable_qchannel(qproc, qproc->halt_map, qproc->qaccept_axi);
+	if (ret) {
+		dev_err(qproc->dev, "failed to enable axi bridge\n");
+		goto disable_active_clks;
+	}
+
 	/*
 	 * Some versions of the MBA firmware will upon boot wipe the MPSS region as well, so provide
 	 * the Q6 access to this region.
@@ -996,8 +1116,13 @@ static int q6v5_mba_load(struct q6v5 *qproc)
 
 halt_axi_ports:
 	q6v5proc_halt_axi_port(qproc, qproc->halt_map, qproc->halt_q6);
+	if (qproc->has_vq6)
+		q6v5proc_halt_axi_port(qproc, qproc->halt_map, qproc->halt_vq6);
 	q6v5proc_halt_axi_port(qproc, qproc->halt_map, qproc->halt_modem);
 	q6v5proc_halt_axi_port(qproc, qproc->halt_map, qproc->halt_nc);
+	q6v5proc_disable_qchannel(qproc, qproc->halt_map, qproc->qaccept_mdm);
+	q6v5proc_disable_qchannel(qproc, qproc->halt_map, qproc->qaccept_cx);
+	q6v5proc_disable_qchannel(qproc, qproc->halt_map, qproc->qaccept_axi);
 	mba_load_err = true;
 reclaim_mba:
 	xfermemop_ret = q6v5_xfer_mem_ownership(qproc, &qproc->mba_perm, true,
@@ -1047,6 +1172,8 @@ static void q6v5_mba_reclaim(struct q6v5 *qproc)
 	qproc->dp_size = 0;
 
 	q6v5proc_halt_axi_port(qproc, qproc->halt_map, qproc->halt_q6);
+	if (qproc->has_vq6)
+		q6v5proc_halt_axi_port(qproc, qproc->halt_map, qproc->halt_vq6);
 	q6v5proc_halt_axi_port(qproc, qproc->halt_map, qproc->halt_modem);
 	q6v5proc_halt_axi_port(qproc, qproc->halt_map, qproc->halt_nc);
 	if (qproc->version == MSS_MSM8996) {
@@ -1059,6 +1186,24 @@ static void q6v5_mba_reclaim(struct q6v5 *qproc)
 		writel(val, qproc->reg_base + QDSP6SS_PWR_CTL_REG);
 	}
 
+	if (qproc->has_ext_cntl_regs) {
+		regmap_write(qproc->conn_map, qproc->rscc_disable, 1);
+
+		ret = regmap_read_poll_timeout(qproc->halt_map, qproc->axim1_clk_off, val,
+					       !val, 1, Q6SS_CBCR_TIMEOUT_US);
+		if (ret)
+			dev_err(qproc->dev, "failed to enable axim1 clock\n");
+
+		ret = regmap_read_poll_timeout(qproc->halt_map, qproc->crypto_clk_off, val,
+					       !val, 1, Q6SS_CBCR_TIMEOUT_US);
+		if (ret)
+			dev_err(qproc->dev, "failed to enable crypto clock\n");
+	}
+
+	q6v5proc_disable_qchannel(qproc, qproc->halt_map, qproc->qaccept_mdm);
+	q6v5proc_disable_qchannel(qproc, qproc->halt_map, qproc->qaccept_cx);
+	q6v5proc_disable_qchannel(qproc, qproc->halt_map, qproc->qaccept_axi);
+
 	q6v5_reset_assert(qproc);
 
 	q6v5_clk_disable(qproc->dev, qproc->reset_clks,
@@ -1471,6 +1616,7 @@ static int q6v5_init_mem(struct q6v5 *qproc, struct platform_device *pdev)
 {
 	struct of_phandle_args args;
 	struct resource *res;
+	int halt_cell_cnt = 3;
 	int ret;
 
 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "qdsp6");
@@ -1483,8 +1629,11 @@ static int q6v5_init_mem(struct q6v5 *qproc, struct platform_device *pdev)
 	if (IS_ERR(qproc->rmb_base))
 		return PTR_ERR(qproc->rmb_base);
 
+	if (qproc->has_vq6)
+		halt_cell_cnt++;
+
 	ret = of_parse_phandle_with_fixed_args(pdev->dev.of_node,
-					       "qcom,halt-regs", 3, 0, &args);
+					       "qcom,halt-regs", halt_cell_cnt, 0, &args);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "failed to parse qcom,halt-regs\n");
 		return -EINVAL;
@@ -1499,6 +1648,52 @@ static int q6v5_init_mem(struct q6v5 *qproc, struct platform_device *pdev)
 	qproc->halt_modem = args.args[1];
 	qproc->halt_nc = args.args[2];
 
+	if (qproc->has_vq6)
+		qproc->halt_vq6 = args.args[3];
+
+	if (qproc->has_qaccept_regs) {
+		ret = of_parse_phandle_with_fixed_args(pdev->dev.of_node,
+						       "qcom,qaccept-regs",
+						       3, 0, &args);
+		if (ret < 0) {
+			dev_err(&pdev->dev, "failed to parse qaccept-regs\n");
+			return -EINVAL;
+		}
+
+		qproc->qaccept_mdm = args.args[0];
+		qproc->qaccept_cx = args.args[1];
+		qproc->qaccept_axi = args.args[2];
+	}
+
+	if (qproc->has_ext_cntl_regs) {
+		ret = of_parse_phandle_with_fixed_args(pdev->dev.of_node,
+						       "qcom,ext-regs",
+						       2, 0, &args);
+		if (ret < 0) {
+			dev_err(&pdev->dev, "failed to parse ext-regs index 0\n");
+			return -EINVAL;
+		}
+
+		qproc->conn_map = syscon_node_to_regmap(args.np);
+		of_node_put(args.np);
+		if (IS_ERR(qproc->conn_map))
+			return PTR_ERR(qproc->conn_map);
+
+		qproc->force_clk_on = args.args[0];
+		qproc->rscc_disable = args.args[1];
+
+		ret = of_parse_phandle_with_fixed_args(pdev->dev.of_node,
+						       "qcom,ext-regs",
+						       2, 1, &args);
+		if (ret < 0) {
+			dev_err(&pdev->dev, "failed to parse ext-regs index 1\n");
+			return -EINVAL;
+		}
+
+		qproc->axim1_clk_off = args.args[0];
+		qproc->crypto_clk_off = args.args[1];
+	}
+
 	if (qproc->has_spare_reg) {
 		ret = of_parse_phandle_with_fixed_args(pdev->dev.of_node,
 						       "qcom,spare-regs",
@@ -1590,7 +1785,7 @@ static int q6v5_init_reset(struct q6v5 *qproc)
 		return PTR_ERR(qproc->mss_restart);
 	}
 
-	if (qproc->has_alt_reset || qproc->has_spare_reg) {
+	if (qproc->has_alt_reset || qproc->has_spare_reg || qproc->has_ext_cntl_regs) {
 		qproc->pdc_reset = devm_reset_control_get_exclusive(qproc->dev,
 								    "pdc_reset");
 		if (IS_ERR(qproc->pdc_reset)) {
@@ -1697,6 +1892,9 @@ static int q6v5_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, qproc);
 
+	qproc->has_qaccept_regs = desc->has_qaccept_regs;
+	qproc->has_ext_cntl_regs = desc->has_ext_cntl_regs;
+	qproc->has_vq6 = desc->has_vq6;
 	qproc->has_spare_reg = desc->has_spare_reg;
 	ret = q6v5_init_mem(qproc, pdev);
 	if (ret)
@@ -1857,9 +2055,39 @@ static const struct rproc_hexagon_res sc7180_mss = {
 	.has_alt_reset = false,
 	.has_mba_logs = true,
 	.has_spare_reg = true,
+	.has_qaccept_regs = false,
+	.has_ext_cntl_regs = false,
+	.has_vq6 = false,
 	.version = MSS_SC7180,
 };
 
+static const struct rproc_hexagon_res sc7280_mss = {
+	.hexagon_mba_image = "mba.mbn",
+	.proxy_clk_names = (char*[]){
+		"xo",
+		NULL
+	},
+	.active_clk_names = (char*[]){
+		"iface",
+		"offline",
+		"snoc_axi",
+		NULL
+	},
+	.proxy_pd_names = (char*[]){
+		"cx",
+		"mss",
+		NULL
+	},
+	.need_mem_protection = true,
+	.has_alt_reset = false,
+	.has_mba_logs = true,
+	.has_spare_reg = false,
+	.has_qaccept_regs = true,
+	.has_ext_cntl_regs = true,
+	.has_vq6 = true,
+	.version = MSS_SC7280,
+};
+
 static const struct rproc_hexagon_res sdm845_mss = {
 	.hexagon_mba_image = "mba.mbn",
 	.proxy_clk_names = (char*[]){
@@ -1889,6 +2117,9 @@ static const struct rproc_hexagon_res sdm845_mss = {
 	.has_alt_reset = true,
 	.has_mba_logs = false,
 	.has_spare_reg = false,
+	.has_qaccept_regs = false,
+	.has_ext_cntl_regs = false,
+	.has_vq6 = false,
 	.version = MSS_SDM845,
 };
 
@@ -1917,6 +2148,9 @@ static const struct rproc_hexagon_res msm8998_mss = {
 	.has_alt_reset = false,
 	.has_mba_logs = false,
 	.has_spare_reg = false,
+	.has_qaccept_regs = false,
+	.has_ext_cntl_regs = false,
+	.has_vq6 = false,
 	.version = MSS_MSM8998,
 };
 
@@ -1948,6 +2182,9 @@ static const struct rproc_hexagon_res msm8996_mss = {
 	.has_alt_reset = false,
 	.has_mba_logs = false,
 	.has_spare_reg = false,
+	.has_qaccept_regs = false,
+	.has_ext_cntl_regs = false,
+	.has_vq6 = false,
 	.version = MSS_MSM8996,
 };
 
@@ -1990,6 +2227,9 @@ static const struct rproc_hexagon_res msm8916_mss = {
 	.has_alt_reset = false,
 	.has_mba_logs = false,
 	.has_spare_reg = false,
+	.has_qaccept_regs = false,
+	.has_ext_cntl_regs = false,
+	.has_vq6 = false,
 	.version = MSS_MSM8916,
 };
 
@@ -2040,6 +2280,9 @@ static const struct rproc_hexagon_res msm8974_mss = {
 	.has_alt_reset = false,
 	.has_mba_logs = false,
 	.has_spare_reg = false,
+	.has_qaccept_regs = false,
+	.has_ext_cntl_regs = false,
+	.has_vq6 = false,
 	.version = MSS_MSM8974,
 };
 
@@ -2050,6 +2293,7 @@ static const struct of_device_id q6v5_of_match[] = {
 	{ .compatible = "qcom,msm8996-mss-pil", .data = &msm8996_mss},
 	{ .compatible = "qcom,msm8998-mss-pil", .data = &msm8998_mss},
 	{ .compatible = "qcom,sc7180-mss-pil", .data = &sc7180_mss},
+	{ .compatible = "qcom,sc7280-mss-pil", .data = &sc7280_mss},
 	{ .compatible = "qcom,sdm845-mss-pil", .data = &sdm845_mss},
 	{ },
 };
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project

Re: [PATCH v4 05/10] remoteproc: mss: q6v5-mss: Add modem support on SC7280

[Stephen Boyd]

Quoting Sibi Sankar (2021-09-06 01:54:40)
> Add out of reset sequence support for modem sub-system on SC7280 SoCs.
> It requires access to an additional set of qaccept registers, external
> power/clk control registers and halt vq6 register to put the modem back
> into reset.
>
> Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
> ---

Reviewed-by: Stephen Boyd <swboyd@chromium.org>

[PATCH v4 06/10] arm64: dts: qcom: sc7280: Update reserved memory map

[Sibi Sankar]

Add missing reserved regions as described in v1 of SC7280 memory map.

Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
---
 arch/arm64/boot/dts/qcom/sc7280.dtsi | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sc7280.dtsi b/arch/arm64/boot/dts/qcom/sc7280.dtsi
index 5e4f4f3b738a..894106efadfe 100644
--- a/arch/arm64/boot/dts/qcom/sc7280.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7280.dtsi
@@ -48,6 +48,16 @@
 		#size-cells = <2>;
 		ranges;
 
+		hyp_mem: memory@80000000 {
+			reg = <0x0 0x80000000 0x0 0x600000>;
+			no-map;
+		};
+
+		xbl_mem: memory@80600000 {
+			reg = <0x0 0x80600000 0x0 0x200000>;
+			no-map;
+		};
+
 		aop_mem: memory@80800000 {
 			reg = <0x0 0x80800000 0x0 0x60000>;
 			no-map;
@@ -59,6 +69,16 @@
 			no-map;
 		};
 
+		reserved_xbl_uefi_log: memory@80880000 {
+			reg = <0x0 0x80884000 0x0 0x10000>;
+			no-map;
+		};
+
+		sec_apps_mem: memory@808ff000 {
+			reg = <0x0 0x808ff000 0x0 0x1000>;
+			no-map;
+		};
+
 		smem_mem: memory@80900000 {
 			reg = <0x0 0x80900000 0x0 0x200000>;
 			no-map;
@@ -69,10 +89,24 @@
 			reg = <0x0 0x80b00000 0x0 0x100000>;
 		};
 
+		wlan_fw_mem: memory@80c00000 {
+			reg = <0x0 0x80c00000 0x0 0xc00000>;
+			no-map;
+		};
+
 		ipa_fw_mem: memory@8b700000 {
 			reg = <0 0x8b700000 0 0x10000>;
 			no-map;
 		};
+
+		rmtfs_mem: memory@9c900000 {
+			compatible = "qcom,rmtfs-mem";
+			reg = <0x0 0x9c900000 0x0 0x280000>;
+			no-map;
+
+			qcom,client-id = <1>;
+			qcom,vmid = <15>;
+		};
 	};
 
 	cpus {
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project

[PATCH v4 07/10] arm64: dts: qcom: sc7280: Add/Delete/Update reserved memory nodes

[Sibi Sankar]

Add, delete and update platform specific reserved memory nodes.

Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
---
 arch/arm64/boot/dts/qcom/sc7280-idp.dtsi | 52 ++++++++++++++++++++++++++++++++
 1 file changed, 52 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi b/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi
index 371a2a9dcf7a..103d89c1e1c7 100644
--- a/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi
@@ -12,6 +12,58 @@
 #include "pm8350c.dtsi"
 #include "pmk8350.dtsi"
 
+/*
+ * Reserved memory changes
+ *
+ * Delete all unused memory nodes and define the peripheral memory regions
+ * required by the board dts.
+ *
+ */
+
+/delete-node/ &hyp_mem;
+/delete-node/ &xbl_mem;
+/delete-node/ &reserved_xbl_uefi_log;
+/delete-node/ &sec_apps_mem;
+
+/* Increase the size from 2.5MB to 8MB */
+&rmtfs_mem {
+	reg = <0x0 0x9c900000 0x0 0x800000>;
+};
+
+/ {
+	reserved-memory {
+		adsp_mem: memory@86700000 {
+			reg = <0x0 0x86700000 0x0 0x2800000>;
+			no-map;
+		};
+
+		camera_mem: memory@8ad00000 {
+			reg = <0x0 0x8ad00000 0x0 0x500000>;
+			no-map;
+		};
+
+		venus_mem: memory@8b200000 {
+			reg = <0x0 0x8b200000 0x0 0x500000>;
+			no-map;
+		};
+
+		mpss_mem: memory@8b800000 {
+			reg = <0x0 0x8b800000 0x0 0xf600000>;
+			no-map;
+		};
+
+		wpss_mem: memory@9ae00000 {
+			reg = <0x0 0x9ae00000 0x0 0x1900000>;
+			no-map;
+		};
+
+		mba_mem: memory@9c700000 {
+			reg = <0x0 0x9c700000 0x0 0x200000>;
+			no-map;
+		};
+	};
+};
+
 &apps_rsc {
 	pm7325-regulators {
 		compatible = "qcom,pm7325-rpmh-regulators";
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project

[PATCH v4 08/10] arm64: dts: qcom: sc7280: Add nodes to boot modem

[Sibi Sankar]

Add miscellaneous nodes to boot the modem and support post-mortem debug
on SC7280 SoCs.

Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
---
 arch/arm64/boot/dts/qcom/sc7280.dtsi | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sc7280.dtsi b/arch/arm64/boot/dts/qcom/sc7280.dtsi
index 894106efadfe..bd1ac93017ae 100644
--- a/arch/arm64/boot/dts/qcom/sc7280.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7280.dtsi
@@ -662,6 +662,11 @@
 			#hwlock-cells = <1>;
 		};
 
+		tcsr: syscon@1fc0000 {
+			compatible = "qcom,sc7280-tcsr", "syscon";
+			reg = <0 0x01fc0000 0 0x30000>;
+		};
+
 		lpasscc: lpasscc@3000000 {
 			compatible = "qcom,sc7280-lpasscc";
 			reg = <0 0x03000000 0 0x40>,
@@ -1632,6 +1637,21 @@
 			};
 		};
 
+		imem@146a5000 {
+			compatible = "qcom,sc7280-imem", "syscon";
+			reg = <0 0x146a5000 0 0x6000>;
+
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			ranges = <0 0 0x146a5000 0x6000>;
+
+			pil-reloc@594c {
+				compatible = "qcom,pil-reloc-info";
+				reg = <0x594c 0xc8>;
+			};
+		};
+
 		apps_smmu: iommu@15000000 {
 			compatible = "qcom,sc7280-smmu-500", "arm,mmu-500";
 			reg = <0 0x15000000 0 0x100000>;
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project

[PATCH v4 09/10] arm64: dts: qcom: sc7280: Add Q6V5 MSS node

[Sibi Sankar]

This patch adds Q6V5 MSS PAS remoteproc node for SC7280 SoCs.

Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
---
 arch/arm64/boot/dts/qcom/sc7280.dtsi | 40 ++++++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sc7280.dtsi b/arch/arm64/boot/dts/qcom/sc7280.dtsi
index bd1ac93017ae..93ae3ee8c5a6 100644
--- a/arch/arm64/boot/dts/qcom/sc7280.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7280.dtsi
@@ -699,6 +699,46 @@
 			#power-domain-cells = <1>;
 		};
 
+		remoteproc_mpss: remoteproc@4080000 {
+			compatible = "qcom,sc7280-mpss-pas";
+			reg = <0 0x04080000 0 0x10000>;
+
+			interrupts-extended = <&intc GIC_SPI 264 IRQ_TYPE_EDGE_RISING>,
+					      <&modem_smp2p_in 0 IRQ_TYPE_EDGE_RISING>,
+					      <&modem_smp2p_in 1 IRQ_TYPE_EDGE_RISING>,
+					      <&modem_smp2p_in 2 IRQ_TYPE_EDGE_RISING>,
+					      <&modem_smp2p_in 3 IRQ_TYPE_EDGE_RISING>,
+					      <&modem_smp2p_in 7 IRQ_TYPE_EDGE_RISING>;
+			interrupt-names = "wdog", "fatal", "ready", "handover",
+					  "stop-ack", "shutdown-ack";
+
+			clocks = <&rpmhcc RPMH_CXO_CLK>;
+			clock-names = "xo";
+
+			power-domains = <&rpmhpd SC7280_CX>,
+					<&rpmhpd SC7280_MSS>;
+			power-domain-names = "cx", "mss";
+
+			memory-region = <&mpss_mem>;
+
+			qcom,qmp = <&aoss_qmp>;
+
+			qcom,smem-states = <&modem_smp2p_out 0>;
+			qcom,smem-state-names = "stop";
+
+			status = "disabled";
+
+			glink-edge {
+				interrupts-extended = <&ipcc IPCC_CLIENT_MPSS
+							     IPCC_MPROC_SIGNAL_GLINK_QMP
+							     IRQ_TYPE_EDGE_RISING>;
+				mboxes = <&ipcc IPCC_CLIENT_MPSS
+						IPCC_MPROC_SIGNAL_GLINK_QMP>;
+				label = "modem";
+				qcom,remote-pid = <1>;
+			};
+		};
+
 		stm@6002000 {
 			compatible = "arm,coresight-stm", "arm,primecell";
 			reg = <0 0x06002000 0 0x1000>,
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project

[PATCH v4 10/10] arm64: dts: qcom: sc7280: Update Q6V5 MSS node

[Sibi Sankar]

Update MSS node to support MSA based modem boot on SC7280 SoCs.

Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
---
 arch/arm64/boot/dts/qcom/sc7280-idp.dtsi |  7 +++++++
 arch/arm64/boot/dts/qcom/sc7280.dtsi     | 18 +++++++++++++++---
 2 files changed, 22 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi b/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi
index 103d89c1e1c7..f1c8641b0c26 100644
--- a/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi
@@ -263,6 +263,13 @@
 	status = "okay";
 };
 
+&remoteproc_mpss {
+	status = "okay";
+	compatible = "qcom,sc7280-mss-pil";
+	iommus = <&apps_smmu 0x124 0x0>, <&apps_smmu 0x488 0x7>;
+	memory-region = <&mba_mem &mpss_mem>;
+};
+
 &sdhc_1 {
 	status = "okay";
 
diff --git a/arch/arm64/boot/dts/qcom/sc7280.dtsi b/arch/arm64/boot/dts/qcom/sc7280.dtsi
index 93ae3ee8c5a6..2644d8575a23 100644
--- a/arch/arm64/boot/dts/qcom/sc7280.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7280.dtsi
@@ -701,7 +701,8 @@
 
 		remoteproc_mpss: remoteproc@4080000 {
 			compatible = "qcom,sc7280-mpss-pas";
-			reg = <0 0x04080000 0 0x10000>;
+			reg = <0 0x04080000 0 0x10000>, <0 0x04180000 0 0x48>;
+			reg-names = "qdsp6", "rmb";
 
 			interrupts-extended = <&intc GIC_SPI 264 IRQ_TYPE_EDGE_RISING>,
 					      <&modem_smp2p_in 0 IRQ_TYPE_EDGE_RISING>,
@@ -712,8 +713,11 @@
 			interrupt-names = "wdog", "fatal", "ready", "handover",
 					  "stop-ack", "shutdown-ack";
 
-			clocks = <&rpmhcc RPMH_CXO_CLK>;
-			clock-names = "xo";
+			clocks = <&gcc GCC_MSS_CFG_AHB_CLK>,
+				 <&gcc GCC_MSS_OFFLINE_AXI_CLK>,
+				 <&gcc GCC_MSS_SNOC_AXI_CLK>,
+				 <&rpmhcc RPMH_CXO_CLK>;
+			clock-names = "iface", "offline", "snoc_axi", "xo";
 
 			power-domains = <&rpmhpd SC7280_CX>,
 					<&rpmhpd SC7280_MSS>;
@@ -726,6 +730,14 @@
 			qcom,smem-states = <&modem_smp2p_out 0>;
 			qcom,smem-state-names = "stop";
 
+			resets = <&aoss_reset AOSS_CC_MSS_RESTART>,
+				 <&pdc_reset PDC_MODEM_SYNC_RESET>;
+			reset-names = "mss_restart", "pdc_reset";
+
+			qcom,halt-regs = <&tcsr_mutex 0x23000 0x25000 0x28000 0x33000>;
+			qcom,ext-regs = <&tcsr 0x10000 0x10004 &tcsr_mutex 0x26004 0x26008>;
+			qcom,qaccept-regs = <&tcsr_mutex 0x23030 0x23040 0x23020>;
+
 			status = "disabled";
 
 			glink-edge {
-- 
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