@@ -180,6 +180,7 @@ static const struct of_device_id blocklist[] __initconst = {
{ .compatible = "ti,am62a7", },
{ .compatible = "ti,am62p5", },
+ { .compatible = "qcom,ipq6018", },
{ .compatible = "qcom,ipq8064", },
{ .compatible = "qcom,ipq8074", },
{ .compatible = "qcom,apq8064", },
@@ -35,6 +35,8 @@ enum ipq8074_versions {
IPQ8074_ACORN_VERSION,
};
+#define IPQ6000_VERSION BIT(2)
+
struct qcom_cpufreq_drv;
struct qcom_cpufreq_match_data {
@@ -246,6 +248,57 @@ static int qcom_cpufreq_ipq8074_name_version(struct device *cpu_dev,
return 0;
}
+static int qcom_cpufreq_ipq6018_name_version(struct device *cpu_dev,
+ struct nvmem_cell *speedbin_nvmem,
+ char **pvs_name,
+ struct qcom_cpufreq_drv *drv)
+{
+ u32 msm_id;
+ int ret;
+ u8 *speedbin;
+ *pvs_name = NULL;
+
+ ret = qcom_smem_get_soc_id(&msm_id);
+ if (ret)
+ return ret;
+
+ speedbin = nvmem_cell_read(speedbin_nvmem, NULL);
+ if (IS_ERR(speedbin))
+ return PTR_ERR(speedbin);
+
+ switch (msm_id) {
+ case QCOM_ID_IPQ6005:
+ case QCOM_ID_IPQ6010:
+ case QCOM_ID_IPQ6018:
+ case QCOM_ID_IPQ6028:
+ /* Fuse Value Freq BIT to set
+ * ---------------------------------
+ * 2’b0 No Limit BIT(0)
+ * 2’b1 1.5 GHz BIT(1)
+ */
+ drv->versions = 1 << (unsigned int)(*speedbin);
+ break;
+ case QCOM_ID_IPQ6000:
+ /*
+ * IPQ6018 family only has one bit to advertise the CPU
+ * speed-bin, but that is not enough for IPQ6000 which
+ * is only rated up to 1.2GHz.
+ * So for IPQ6000 manually set BIT(2) based on SMEM ID.
+ */
+ drv->versions = IPQ6000_VERSION;
+ break;
+ default:
+ dev_err(cpu_dev,
+ "SoC ID %u is not part of IPQ6018 family, limiting to 1.2GHz!\n",
+ msm_id);
+ drv->versions = IPQ6000_VERSION;
+ break;
+ }
+
+ kfree(speedbin);
+ return 0;
+}
+
static const struct qcom_cpufreq_match_data match_data_kryo = {
.get_version = qcom_cpufreq_kryo_name_version,
};
@@ -260,6 +313,10 @@ static const struct qcom_cpufreq_match_data match_data_qcs404 = {
.genpd_names = qcs404_genpd_names,
};
+static const struct qcom_cpufreq_match_data match_data_ipq6018 = {
+ .get_version = qcom_cpufreq_ipq6018_name_version,
+};
+
static const struct qcom_cpufreq_match_data match_data_ipq8074 = {
.get_version = qcom_cpufreq_ipq8074_name_version,
};
@@ -406,6 +463,7 @@ static const struct of_device_id qcom_cpufreq_match_list[] __initconst = {
{ .compatible = "qcom,apq8096", .data = &match_data_kryo },
{ .compatible = "qcom,msm8996", .data = &match_data_kryo },
{ .compatible = "qcom,qcs404", .data = &match_data_qcs404 },
+ { .compatible = "qcom,ipq6018", .data = &match_data_ipq6018 },
{ .compatible = "qcom,ipq8064", .data = &match_data_krait },
{ .compatible = "qcom,ipq8074", .data = &match_data_ipq8074 },
{ .compatible = "qcom,apq8064", .data = &match_data_krait },
IPQ6018 SoC series comes in multiple SKU-s, and not all of them support high frequency OPP points. SoC itself does however have a single bit in QFPROM to indicate the CPU speed-bin. That bit is used to indicate frequency limit of 1.5GHz, but that alone is not enough as IPQ6000 only goes up to 1.2GHz, but SMEM ID can be used to limit it further. IPQ6018 compatible is blacklisted from DT platdev as the cpufreq device will get created by NVMEM CPUFreq driver. Signed-off-by: Robert Marko <robimarko@gmail.com> --- drivers/cpufreq/cpufreq-dt-platdev.c | 1 + drivers/cpufreq/qcom-cpufreq-nvmem.c | 58 ++++++++++++++++++++++++++++ 2 files changed, 59 insertions(+)