remoteproc: qcom: Add efuse evb selection control

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>
Reviewed-by: Sibi Sankar <quic_sibis@quicinc.com>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/1664368073-13659-7-git-send-email-quic_srivasam@quicinc.com

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;
@@ -367,6 +369,9 @@ 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);
 
@@ -533,6 +538,7 @@ 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;
 
@@ -542,6 +548,17 @@ 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");