diff mbox series

[v6,6/8] remoteproc: qcom: Add efuse evb selection control

Message ID 1662643422-14909-7-git-send-email-quic_srivasam@quicinc.com
State Superseded
Headers show
Series Update ADSP pil loader for SC7280 platform | expand

Commit Message

Srinivasa Rao Mandadapu Sept. 8, 2022, 1:23 p.m. UTC 
Add efuse evb selection control and enable it for starting ADSP.

Signed-off-by: Srinivasa Rao Mandadapu <quic_srivasam@quicinc.com>
---
Changes since V5:
	-- Split devm_platform_ioremap_resource_byname function.

 drivers/remoteproc/qcom_q6v5_adsp.c | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

Comments

Stephen Boyd Sept. 11, 2022, 10:57 p.m. UTC | #1 
Quoting Srinivasa Rao Mandadapu (2022-09-08 06:23:40)
> Add efuse evb selection control and enable it for starting ADSP.
>
> Signed-off-by: Srinivasa Rao Mandadapu <quic_srivasam@quicinc.com>
> ---

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

Patch

diff --git a/drivers/remoteproc/qcom_q6v5_adsp.c b/drivers/remoteproc/qcom_q6v5_adsp.c
index 389b2c0..ccb5592 100644
--- a/drivers/remoteproc/qcom_q6v5_adsp.c
+++ b/drivers/remoteproc/qcom_q6v5_adsp.c
@@ -56,6 +56,7 @@ 
 
 #define LPASS_BOOT_CORE_START	BIT(0)
 #define LPASS_BOOT_CMD_START	BIT(0)
+#define LPASS_EFUSE_Q6SS_EVB_SEL 0x0
 
 struct adsp_pil_data {
 	int crash_reason_smem;
@@ -86,6 +87,7 @@  struct qcom_adsp {
 	struct clk_bulk_data *clks;
 
 	void __iomem *qdsp6ss_base;
+	void __iomem *lpass_efuse;
 
 	struct reset_control *pdc_sync_reset;
 	struct reset_control *restart;
@@ -368,6 +370,9 @@  static int adsp_start(struct rproc *rproc)
 	/* Program boot address */
 	writel(adsp->mem_phys >> 4, adsp->qdsp6ss_base + RST_EVB_REG);
 
+	if (adsp->lpass_efuse)
+		writel(LPASS_EFUSE_Q6SS_EVB_SEL, adsp->lpass_efuse);
+
 	/* De-assert QDSP6 stop core. QDSP6 will execute after out of reset */
 	writel(LPASS_BOOT_CORE_START, adsp->qdsp6ss_base + CORE_START_REG);
 
@@ -513,6 +518,7 @@  static int adsp_init_reset(struct qcom_adsp *adsp)
 static int adsp_init_mmio(struct qcom_adsp *adsp,
 				struct platform_device *pdev)
 {
+	struct resource *efuse_region;
 	struct device_node *syscon;
 	int ret;
 
@@ -522,6 +528,17 @@  static int adsp_init_mmio(struct qcom_adsp *adsp,
 		return PTR_ERR(adsp->qdsp6ss_base);
 	}
 
+	efuse_region = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+	if (!efuse_region) {
+		adsp->lpass_efuse = NULL;
+		dev_dbg(adsp->dev, "failed to get efuse memory region\n");
+	} else {
+		adsp->lpass_efuse = devm_ioremap_resource(&pdev->dev, efuse_region);
+		if (IS_ERR(adsp->lpass_efuse)) {
+			dev_err(adsp->dev, "failed to map efuse registers\n");
+			return PTR_ERR(adsp->lpass_efuse);
+		}
+	}
 	syscon = of_parse_phandle(pdev->dev.of_node, "qcom,halt-regs", 0);
 	if (!syscon) {
 		dev_err(&pdev->dev, "failed to parse qcom,halt-regs\n");