[PATCH v2 1/3] dt-bindings: remoteproc: qcom,msm8996-mss-pil: Add SDM660 compatible

[PATCH v2 1/3] dt-bindings: remoteproc: qcom,msm8996-mss-pil: Add SDM660 compatible

[Alexey Minnekhanov]

Mention sdm660-mss-pil in compatibles list.

Signed-off-by: Alexey Minnekhanov <alexeymin@postmarketos.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
---
 .../devicetree/bindings/remoteproc/qcom,msm8996-mss-pil.yaml | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/remoteproc/qcom,msm8996-mss-pil.yaml b/Documentation/devicetree/bindings/remoteproc/qcom,msm8996-mss-pil.yaml
index c1ac6ca1e759..09da5616e1e5 100644
--- a/Documentation/devicetree/bindings/remoteproc/qcom,msm8996-mss-pil.yaml
+++ b/Documentation/devicetree/bindings/remoteproc/qcom,msm8996-mss-pil.yaml
@@ -19,6 +19,7 @@ properties:
     enum:
       - qcom,msm8996-mss-pil
       - qcom,msm8998-mss-pil
+      - qcom,sdm660-mss-pil
       - qcom,sdm845-mss-pil
 
   reg:
@@ -245,7 +246,9 @@ allOf:
   - if:
       properties:
         compatible:
-          const: qcom,msm8998-mss-pil
+          enum:
+            - qcom,msm8998-mss-pil
+            - qcom,sdm660-mss-pil
     then:
       properties:
         clocks:
-- 
2.39.3

[PATCH v2 2/3] remoteproc: qcom: q6v5-mss: Add support for SDM630/636/660

[Alexey Minnekhanov]

Snapdragon 630/660 modem subsystem is similar to one in MSM8998
and can almost reuse it's reset sequence.

Downstream sources call this q6v5 version "qdsp6v62-1-5" and its
code path has additional checks for QDSP6v55_BHS_EN_REST_ACK
status [2].

Inspiration is taken from Konrad Dybcio's work in [1], but reworked
to use common code path with MSM8996/8998, instead of completely
separate "if" block for SDM660.

[1] https://github.com/SoMainline/linux/commit/7dd6dd9b936dc8d6c1f1abe299e5b065c33741e8
[2] https://github.com/MiCode/Xiaomi_Kernel_OpenSource/blob/lavender-q-oss/drivers/soc/qcom/pil-q6v5.c#L393

Co-developed-by: Konrad Dybcio <konradybcio@gmail.com>
Signed-off-by: Konrad Dybcio <konradybcio@gmail.com>
Signed-off-by: Alexey Minnekhanov <alexeymin@postmarketos.org>

---

V2: use readl_relaxed_poll_timeout instead of hand-coded for loop.

In his commit Konrad mentions that modem was unstable, but I don't
observe such behaviour on my device. Modem does not restart by itself,
and I could successfully enable ath10k wcn3990 Wi-Fi with this.

Also worth saying that in my initial tests just using qcom,msm8998-mss-pil
as-is, without separate resource struct and separate code paths for
SDM660, was also working fine.
---
 drivers/remoteproc/qcom_q6v5_mss.c | 51 ++++++++++++++++++++++++++++--
 1 file changed, 49 insertions(+), 2 deletions(-)

diff --git a/drivers/remoteproc/qcom_q6v5_mss.c b/drivers/remoteproc/qcom_q6v5_mss.c
index 8e15e4f85de1..dcbecae675e2 100644
--- a/drivers/remoteproc/qcom_q6v5_mss.c
+++ b/drivers/remoteproc/qcom_q6v5_mss.c
@@ -71,6 +71,7 @@
 #define QDSP6SS_MEM_PWR_CTL		0x0B0
 #define QDSP6V6SS_MEM_PWR_CTL		0x034
 #define QDSP6SS_STRAP_ACC		0x110
+#define QDSP6V62SS_BHS_STATUS		0x0C4
 
 /* AXI Halt Register Offsets */
 #define AXI_HALTREQ_REG			0x0
@@ -123,6 +124,7 @@
 #define QDSP6v56_CLAMP_QMC_MEM		BIT(22)
 #define QDSP6SS_XO_CBCR		0x0038
 #define QDSP6SS_ACC_OVERRIDE_VAL		0x20
+#define QDSP6v55_BHS_EN_REST_ACK	BIT(0)
 
 /* QDSP6v65 parameters */
 #define QDSP6SS_CORE_CBCR		0x20
@@ -130,6 +132,7 @@
 #define QDSP6SS_BOOT_CORE_START         0x400
 #define QDSP6SS_BOOT_CMD                0x404
 #define BOOT_FSM_TIMEOUT                10000
+#define BHS_CHECK_MAX_LOOPS             200
 
 struct reg_info {
 	struct regulator *reg;
@@ -250,6 +253,7 @@ enum {
 	MSS_MSM8998,
 	MSS_SC7180,
 	MSS_SC7280,
+	MSS_SDM660,
 	MSS_SDM845,
 };
 
@@ -700,7 +704,8 @@ static int q6v5proc_reset(struct q6v5 *qproc)
 	} else if (qproc->version == MSS_MSM8909 ||
 		   qproc->version == MSS_MSM8953 ||
 		   qproc->version == MSS_MSM8996 ||
-		   qproc->version == MSS_MSM8998) {
+		   qproc->version == MSS_MSM8998 ||
+		   qproc->version == MSS_SDM660) {
 
 		if (qproc->version != MSS_MSM8909 &&
 		    qproc->version != MSS_MSM8953)
@@ -734,6 +739,16 @@ static int q6v5proc_reset(struct q6v5 *qproc)
 		val |= readl(qproc->reg_base + QDSP6SS_PWR_CTL_REG);
 		udelay(1);
 
+		if (qproc->version == MSS_SDM660) {
+			ret = readl_relaxed_poll_timeout(qproc->reg_base + QDSP6V62SS_BHS_STATUS,
+							 i, (i & QDSP6v55_BHS_EN_REST_ACK),
+							 1, BHS_CHECK_MAX_LOOPS);
+			if (ret == -ETIMEDOUT) {
+				dev_err(qproc->dev, "BHS_EN_REST_ACK not set!\n");
+				return -ETIMEDOUT;
+			}
+		}
+
 		/* Put LDO in bypass mode */
 		val |= QDSP6v56_LDO_BYP;
 		writel(val, qproc->reg_base + QDSP6SS_PWR_CTL_REG);
@@ -756,7 +771,7 @@ static int q6v5proc_reset(struct q6v5 *qproc)
 				mem_pwr_ctl = QDSP6SS_MEM_PWR_CTL;
 				i = 19;
 			} else {
-				/* MSS_MSM8998 */
+				/* MSS_MSM8998, MSS_SDM660 */
 				mem_pwr_ctl = QDSP6V6SS_MEM_PWR_CTL;
 				i = 28;
 			}
@@ -2193,6 +2208,37 @@ static const struct rproc_hexagon_res sc7280_mss = {
 	.version = MSS_SC7280,
 };
 
+static const struct rproc_hexagon_res sdm660_mss = {
+	.hexagon_mba_image = "mba.mbn",
+	.proxy_clk_names = (char*[]){
+			"xo",
+			"qdss",
+			"mem",
+			NULL
+	},
+	.active_clk_names = (char*[]){
+			"iface",
+			"bus",
+			"gpll0_mss",
+			"mnoc_axi",
+			"snoc_axi",
+			NULL
+	},
+	.proxy_pd_names = (char*[]){
+			"cx",
+			"mx",
+			NULL
+	},
+	.need_mem_protection = true,
+	.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_SDM660,
+};
+
 static const struct rproc_hexagon_res sdm845_mss = {
 	.hexagon_mba_image = "mba.mbn",
 	.proxy_clk_names = (char*[]){
@@ -2475,6 +2521,7 @@ static const struct of_device_id q6v5_of_match[] = {
 	{ .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,sdm660-mss-pil", .data = &sdm660_mss},
 	{ .compatible = "qcom,sdm845-mss-pil", .data = &sdm845_mss},
 	{ },
 };
-- 
2.39.3

Re: [PATCH v2 2/3] remoteproc: qcom: q6v5-mss: Add support for SDM630/636/660

[Konrad Dybcio]

On 21.06.2023 19:50, Alexey Minnekhanov wrote:
> Snapdragon 630/660 modem subsystem is similar to one in MSM8998
> and can almost reuse it's reset sequence.
> 
> Downstream sources call this q6v5 version "qdsp6v62-1-5" and its
> code path has additional checks for QDSP6v55_BHS_EN_REST_ACK
> status [2].
> 
> Inspiration is taken from Konrad Dybcio's work in [1], but reworked
> to use common code path with MSM8996/8998, instead of completely
> separate "if" block for SDM660.
> 
> [1] https://github.com/SoMainline/linux/commit/7dd6dd9b936dc8d6c1f1abe299e5b065c33741e8
> [2] https://github.com/MiCode/Xiaomi_Kernel_OpenSource/blob/lavender-q-oss/drivers/soc/qcom/pil-q6v5.c#L393
> 
> Co-developed-by: Konrad Dybcio <konradybcio@gmail.com>
> Signed-off-by: Konrad Dybcio <konradybcio@gmail.com>
> Signed-off-by: Alexey Minnekhanov <alexeymin@postmarketos.org>
> 
> ---
> 
> V2: use readl_relaxed_poll_timeout instead of hand-coded for loop.
> 
> In his commit Konrad mentions that modem was unstable, but I don't
> observe such behaviour on my device. Modem does not restart by itself,
> and I could successfully enable ath10k wcn3990 Wi-Fi with this.
> 
> Also worth saying that in my initial tests just using qcom,msm8998-mss-pil
> as-is, without separate resource struct and separate code paths for
> SDM660, was also working fine.
> ---
Looks like pre-SMxxxx Sony devices have some touchy watchdog..

Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>

Konrad
>  drivers/remoteproc/qcom_q6v5_mss.c | 51 ++++++++++++++++++++++++++++--
>  1 file changed, 49 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/remoteproc/qcom_q6v5_mss.c b/drivers/remoteproc/qcom_q6v5_mss.c
> index 8e15e4f85de1..dcbecae675e2 100644
> --- a/drivers/remoteproc/qcom_q6v5_mss.c
> +++ b/drivers/remoteproc/qcom_q6v5_mss.c
> @@ -71,6 +71,7 @@
>  #define QDSP6SS_MEM_PWR_CTL		0x0B0
>  #define QDSP6V6SS_MEM_PWR_CTL		0x034
>  #define QDSP6SS_STRAP_ACC		0x110
> +#define QDSP6V62SS_BHS_STATUS		0x0C4
>  
>  /* AXI Halt Register Offsets */
>  #define AXI_HALTREQ_REG			0x0
> @@ -123,6 +124,7 @@
>  #define QDSP6v56_CLAMP_QMC_MEM		BIT(22)
>  #define QDSP6SS_XO_CBCR		0x0038
>  #define QDSP6SS_ACC_OVERRIDE_VAL		0x20
> +#define QDSP6v55_BHS_EN_REST_ACK	BIT(0)
>  
>  /* QDSP6v65 parameters */
>  #define QDSP6SS_CORE_CBCR		0x20
> @@ -130,6 +132,7 @@
>  #define QDSP6SS_BOOT_CORE_START         0x400
>  #define QDSP6SS_BOOT_CMD                0x404
>  #define BOOT_FSM_TIMEOUT                10000
> +#define BHS_CHECK_MAX_LOOPS             200
>  
>  struct reg_info {
>  	struct regulator *reg;
> @@ -250,6 +253,7 @@ enum {
>  	MSS_MSM8998,
>  	MSS_SC7180,
>  	MSS_SC7280,
> +	MSS_SDM660,
>  	MSS_SDM845,
>  };
>  
> @@ -700,7 +704,8 @@ static int q6v5proc_reset(struct q6v5 *qproc)
>  	} else if (qproc->version == MSS_MSM8909 ||
>  		   qproc->version == MSS_MSM8953 ||
>  		   qproc->version == MSS_MSM8996 ||
> -		   qproc->version == MSS_MSM8998) {
> +		   qproc->version == MSS_MSM8998 ||
> +		   qproc->version == MSS_SDM660) {
>  
>  		if (qproc->version != MSS_MSM8909 &&
>  		    qproc->version != MSS_MSM8953)
> @@ -734,6 +739,16 @@ static int q6v5proc_reset(struct q6v5 *qproc)
>  		val |= readl(qproc->reg_base + QDSP6SS_PWR_CTL_REG);
>  		udelay(1);
>  
> +		if (qproc->version == MSS_SDM660) {
> +			ret = readl_relaxed_poll_timeout(qproc->reg_base + QDSP6V62SS_BHS_STATUS,
> +							 i, (i & QDSP6v55_BHS_EN_REST_ACK),
> +							 1, BHS_CHECK_MAX_LOOPS);
> +			if (ret == -ETIMEDOUT) {
> +				dev_err(qproc->dev, "BHS_EN_REST_ACK not set!\n");
> +				return -ETIMEDOUT;
> +			}
> +		}
> +
>  		/* Put LDO in bypass mode */
>  		val |= QDSP6v56_LDO_BYP;
>  		writel(val, qproc->reg_base + QDSP6SS_PWR_CTL_REG);
> @@ -756,7 +771,7 @@ static int q6v5proc_reset(struct q6v5 *qproc)
>  				mem_pwr_ctl = QDSP6SS_MEM_PWR_CTL;
>  				i = 19;
>  			} else {
> -				/* MSS_MSM8998 */
> +				/* MSS_MSM8998, MSS_SDM660 */
>  				mem_pwr_ctl = QDSP6V6SS_MEM_PWR_CTL;
>  				i = 28;
>  			}
> @@ -2193,6 +2208,37 @@ static const struct rproc_hexagon_res sc7280_mss = {
>  	.version = MSS_SC7280,
>  };
>  
> +static const struct rproc_hexagon_res sdm660_mss = {
> +	.hexagon_mba_image = "mba.mbn",
> +	.proxy_clk_names = (char*[]){
> +			"xo",
> +			"qdss",
> +			"mem",
> +			NULL
> +	},
> +	.active_clk_names = (char*[]){
> +			"iface",
> +			"bus",
> +			"gpll0_mss",
> +			"mnoc_axi",
> +			"snoc_axi",
> +			NULL
> +	},
> +	.proxy_pd_names = (char*[]){
> +			"cx",
> +			"mx",
> +			NULL
> +	},
> +	.need_mem_protection = true,
> +	.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_SDM660,
> +};
> +
>  static const struct rproc_hexagon_res sdm845_mss = {
>  	.hexagon_mba_image = "mba.mbn",
>  	.proxy_clk_names = (char*[]){
> @@ -2475,6 +2521,7 @@ static const struct of_device_id q6v5_of_match[] = {
>  	{ .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,sdm660-mss-pil", .data = &sdm660_mss},
>  	{ .compatible = "qcom,sdm845-mss-pil", .data = &sdm845_mss},
>  	{ },
>  };

[PATCH v2 3/3] arm64: dts: qcom: sdm630: Add support for modem remoteproc

[Alexey Minnekhanov]

Modem subsystem in SDM630/660 is similar to MSM8998 and
device tree node for it is based on the one from msm8998.dtsi.

Signed-off-by: Alexey Minnekhanov <alexeymin@postmarketos.org>
---
 arch/arm64/boot/dts/qcom/sdm630.dtsi | 65 ++++++++++++++++++++++++++++
 1 file changed, 65 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sdm630.dtsi b/arch/arm64/boot/dts/qcom/sdm630.dtsi
index 014237d4b5b2..ad01f2951154 100644
--- a/arch/arm64/boot/dts/qcom/sdm630.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm630.dtsi
@@ -1028,6 +1028,71 @@ data-pins {
 			};
 		};
 
+		remoteproc_mss: remoteproc@4080000 {
+			compatible = "qcom,sdm660-mss-pil";
+			reg = <0x04080000 0x100>, <0x04180000 0x40>;
+			reg-names = "qdsp6", "rmb";
+
+			interrupts-extended = <&intc GIC_SPI 448 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 = <&gcc GCC_MSS_CFG_AHB_CLK>,
+				 <&gcc GCC_BIMC_MSS_Q6_AXI_CLK>,
+				 <&gcc GCC_BOOT_ROM_AHB_CLK>,
+				 <&gcc GPLL0_OUT_MSSCC>,
+				 <&gcc GCC_MSS_SNOC_AXI_CLK>,
+				 <&gcc GCC_MSS_MNOC_BIMC_AXI_CLK>,
+				 <&rpmcc RPM_SMD_QDSS_CLK>,
+				 <&rpmcc RPM_SMD_XO_CLK_SRC>;
+			clock-names = "iface",
+				      "bus",
+				      "mem",
+				      "gpll0_mss",
+				      "snoc_axi",
+				      "mnoc_axi",
+				      "qdss",
+				      "xo";
+
+			qcom,smem-states = <&modem_smp2p_out 0>;
+			qcom,smem-state-names = "stop";
+
+			resets = <&gcc GCC_MSS_RESTART>;
+			reset-names = "mss_restart";
+
+			qcom,halt-regs = <&tcsr_regs_1 0x3000 0x5000 0x4000>;
+
+			power-domains = <&rpmpd SDM660_VDDCX>,
+					<&rpmpd SDM660_VDDMX>;
+			power-domain-names = "cx", "mx";
+
+			status = "disabled";
+
+			mba {
+				memory-region = <&mba_region>;
+			};
+
+			mpss {
+				memory-region = <&mpss_region>;
+			};
+
+			glink-edge {
+				interrupts = <GIC_SPI 452 IRQ_TYPE_EDGE_RISING>;
+				label = "modem";
+				qcom,remote-pid = <1>;
+				mboxes = <&apcs_glb 15>;
+			};
+		};
+
 		adreno_gpu: gpu@5000000 {
 			compatible = "qcom,adreno-508.0", "qcom,adreno";
 
-- 
2.39.3

Re: [PATCH v2 3/3] arm64: dts: qcom: sdm630: Add support for modem remoteproc

[Krzysztof Kozlowski]

On 21/06/2023 19:50, Alexey Minnekhanov wrote:
> Modem subsystem in SDM630/660 is similar to MSM8998 and
> device tree node for it is based on the one from msm8998.dtsi.
> 
> Signed-off-by: Alexey Minnekhanov <alexeymin@postmarketos.org>
> ---
>  arch/arm64/boot/dts/qcom/sdm630.dtsi | 65 ++++++++++++++++++++++++++++
>  1 file changed, 65 insertions(+)
> 

...
> +
> +			qcom,halt-regs = <&tcsr_regs_1 0x3000 0x5000 0x4000>;
> +
> +			power-domains = <&rpmpd SDM660_VDDCX>,
> +					<&rpmpd SDM660_VDDMX>;
> +			power-domain-names = "cx", "mx";
> +
> +			status = "disabled";
> +
> +			mba {
> +				memory-region = <&mba_region>;
> +			};
> +
> +			mpss {
> +				memory-region = <&mpss_region>;
> +			};

mba and mpss are deprecated. I think this was changed to memory-regions
in remoteproc node.

Best regards,
Krzysztof

Re: [PATCH v2 3/3] arm64: dts: qcom: sdm630: Add support for modem remoteproc

[Alexey Minnekhanov]

On 22.06.2023 09:22, Krzysztof Kozlowski wrote:
> On 21/06/2023 19:50, Alexey Minnekhanov wrote:
>> Modem subsystem in SDM630/660 is similar to MSM8998 and
>> device tree node for it is based on the one from msm8998.dtsi.
>>
>> Signed-off-by: Alexey Minnekhanov <alexeymin@postmarketos.org>
>> ---
>>   arch/arm64/boot/dts/qcom/sdm630.dtsi | 65 ++++++++++++++++++++++++++++
>>   1 file changed, 65 insertions(+)
>>
> 
> ...
>> +
>> +			mba {
>> +				memory-region = <&mba_region>;
>> +			};
>> +
>> +			mpss {
>> +				memory-region = <&mpss_region>;
>> +			};
> 
> mba and mpss are deprecated. I think this was changed to memory-regions
> in remoteproc node.
> 

That's what I thought after reading DT bindings document, but none of 
closest siblings (msm8996.dtsi, msm8998.dtsi) use the new way.

Will change in V3.

-- 
Regards,
Alexey Minnekhanov

Re: (subset) [PATCH v2 1/3] dt-bindings: remoteproc: qcom,msm8996-mss-pil: Add SDM660 compatible

[Bjorn Andersson]

On Wed, 21 Jun 2023 20:50:44 +0300, Alexey Minnekhanov wrote:
> Mention sdm660-mss-pil in compatibles list.
> 
> 

Applied, thanks!

[1/3] dt-bindings: remoteproc: qcom,msm8996-mss-pil: Add SDM660 compatible
      commit: ed50ac266f67829d4732c8ca61ef1953c2cc63d0
[2/3] remoteproc: qcom: q6v5-mss: Add support for SDM630/636/660
      commit: 10b6fec2c8c99b5d1ccbcd070da1fc8e96da0046

Best regards,
-- 
Bjorn Andersson <andersson@kernel.org>