From: Anson.Huang@nxp.com To: robh+dt@kernel.org, mark.rutland@arm.com, shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, mturquette@baylibre.com, sboyd@kernel.org, rjw@rjwysocki.net, viresh.kumar@linaro.org, leonard.crestez@nxp.com, abel.vesa@nxp.com, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org, linux-pm@vger.kernel.org Cc: Linux-imx@nxp.com Subject: [PATCH 4/6] cpufreq: imx-cpufreq-dt: Add i.MX8MN support Date: Thu, 15 Aug 2019 06:59:41 -0400 [thread overview] Message-ID: <1565866783-19672-4-git-send-email-Anson.Huang@nxp.com> (raw) In-Reply-To: <1565866783-19672-1-git-send-email-Anson.Huang@nxp.com> From: Anson Huang <Anson.Huang@nxp.com> i.MX8MN has different speed grading definition as below, it has 4 bits to define speed grading, add support for it. SPEED_GRADE[3:0] MHz 0000 2300 0001 2200 0010 2100 0011 2000 0100 1900 0101 1800 0110 1700 0111 1600 1000 1500 1001 1400 1010 1300 1011 1200 1100 1100 1101 1000 1110 900 1111 800 Signed-off-by: Anson Huang <Anson.Huang@nxp.com> --- drivers/cpufreq/imx-cpufreq-dt.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/cpufreq/imx-cpufreq-dt.c b/drivers/cpufreq/imx-cpufreq-dt.c index 4f85f31..35db14c 100644 --- a/drivers/cpufreq/imx-cpufreq-dt.c +++ b/drivers/cpufreq/imx-cpufreq-dt.c @@ -16,6 +16,7 @@ #define OCOTP_CFG3_SPEED_GRADE_SHIFT 8 #define OCOTP_CFG3_SPEED_GRADE_MASK (0x3 << 8) +#define IMX8MN_OCOTP_CFG3_SPEED_GRADE_MASK (0xf << 8) #define OCOTP_CFG3_MKT_SEGMENT_SHIFT 6 #define OCOTP_CFG3_MKT_SEGMENT_MASK (0x3 << 6) @@ -34,7 +35,12 @@ static int imx_cpufreq_dt_probe(struct platform_device *pdev) if (ret) return ret; - speed_grade = (cell_value & OCOTP_CFG3_SPEED_GRADE_MASK) >> OCOTP_CFG3_SPEED_GRADE_SHIFT; + if (of_machine_is_compatible("fsl,imx8mn")) + speed_grade = (cell_value & IMX8MN_OCOTP_CFG3_SPEED_GRADE_MASK) + >> OCOTP_CFG3_SPEED_GRADE_SHIFT; + else + speed_grade = (cell_value & OCOTP_CFG3_SPEED_GRADE_MASK) + >> OCOTP_CFG3_SPEED_GRADE_SHIFT; mkt_segment = (cell_value & OCOTP_CFG3_MKT_SEGMENT_MASK) >> OCOTP_CFG3_MKT_SEGMENT_SHIFT; /* -- 2.7.4
WARNING: multiple messages have this Message-ID (diff)
From: Anson.Huang@nxp.com To: robh+dt@kernel.org, mark.rutland@arm.com, shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, mturquette@baylibre.com, sboyd@kernel.org, rjw@rjwysocki.net, viresh.kumar@linaro.org, leonard.crestez@nxp.com, abel.vesa@nxp.com, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org, linux-pm@vger.kernel.org Cc: Linux-imx@nxp.com Subject: [PATCH 4/6] cpufreq: imx-cpufreq-dt: Add i.MX8MN support Date: Thu, 15 Aug 2019 06:59:41 -0400 [thread overview] Message-ID: <1565866783-19672-4-git-send-email-Anson.Huang@nxp.com> (raw) In-Reply-To: <1565866783-19672-1-git-send-email-Anson.Huang@nxp.com> From: Anson Huang <Anson.Huang@nxp.com> i.MX8MN has different speed grading definition as below, it has 4 bits to define speed grading, add support for it. SPEED_GRADE[3:0] MHz 0000 2300 0001 2200 0010 2100 0011 2000 0100 1900 0101 1800 0110 1700 0111 1600 1000 1500 1001 1400 1010 1300 1011 1200 1100 1100 1101 1000 1110 900 1111 800 Signed-off-by: Anson Huang <Anson.Huang@nxp.com> --- drivers/cpufreq/imx-cpufreq-dt.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/cpufreq/imx-cpufreq-dt.c b/drivers/cpufreq/imx-cpufreq-dt.c index 4f85f31..35db14c 100644 --- a/drivers/cpufreq/imx-cpufreq-dt.c +++ b/drivers/cpufreq/imx-cpufreq-dt.c @@ -16,6 +16,7 @@ #define OCOTP_CFG3_SPEED_GRADE_SHIFT 8 #define OCOTP_CFG3_SPEED_GRADE_MASK (0x3 << 8) +#define IMX8MN_OCOTP_CFG3_SPEED_GRADE_MASK (0xf << 8) #define OCOTP_CFG3_MKT_SEGMENT_SHIFT 6 #define OCOTP_CFG3_MKT_SEGMENT_MASK (0x3 << 6) @@ -34,7 +35,12 @@ static int imx_cpufreq_dt_probe(struct platform_device *pdev) if (ret) return ret; - speed_grade = (cell_value & OCOTP_CFG3_SPEED_GRADE_MASK) >> OCOTP_CFG3_SPEED_GRADE_SHIFT; + if (of_machine_is_compatible("fsl,imx8mn")) + speed_grade = (cell_value & IMX8MN_OCOTP_CFG3_SPEED_GRADE_MASK) + >> OCOTP_CFG3_SPEED_GRADE_SHIFT; + else + speed_grade = (cell_value & OCOTP_CFG3_SPEED_GRADE_MASK) + >> OCOTP_CFG3_SPEED_GRADE_SHIFT; mkt_segment = (cell_value & OCOTP_CFG3_MKT_SEGMENT_MASK) >> OCOTP_CFG3_MKT_SEGMENT_SHIFT; /* -- 2.7.4 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2019-08-15 11:18 UTC|newest] Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-08-15 10:59 [PATCH 1/6] arm64: dts: imx8mn-ddr4-evk: Add i2c1 support Anson.Huang 2019-08-15 10:59 ` Anson.Huang 2019-08-15 10:59 ` [PATCH 2/6] arm64: dts: imx8mn-ddr4-evk: Add rohm,bd71847 PMIC support Anson.Huang 2019-08-15 10:59 ` [PATCH 2/6] arm64: dts: imx8mn-ddr4-evk: Add rohm, bd71847 " Anson.Huang 2019-08-15 10:59 ` [PATCH 3/6] cpufreq: Use imx-cpufreq-dt for i.MX8MN's speed grading Anson.Huang 2019-08-15 10:59 ` Anson.Huang 2019-08-15 10:59 ` Anson.Huang [this message] 2019-08-15 10:59 ` [PATCH 4/6] cpufreq: imx-cpufreq-dt: Add i.MX8MN support Anson.Huang 2019-08-15 10:59 ` [PATCH 5/6] clk: imx8mn: Add necessary frequency support for ARM PLL table Anson.Huang 2019-08-15 10:59 ` Anson.Huang 2019-08-17 3:52 ` Stephen Boyd 2019-08-17 3:52 ` Stephen Boyd 2019-08-17 22:22 ` Anson Huang 2019-08-17 22:22 ` Anson Huang 2019-08-17 22:22 ` Anson Huang 2019-08-18 1:11 ` Stephen Boyd 2019-08-18 1:11 ` Stephen Boyd 2019-08-18 1:11 ` Stephen Boyd 2019-08-18 6:19 ` Anson Huang 2019-08-18 6:19 ` Anson Huang 2019-08-18 6:19 ` Anson Huang 2019-08-15 10:59 ` [PATCH 6/6] arm64: dts: imx8mn: Add cpu-freq support Anson.Huang 2019-08-15 10:59 ` Anson.Huang 2019-08-15 14:12 ` [PATCH 1/6] arm64: dts: imx8mn-ddr4-evk: Add i2c1 support Leonard Crestez 2019-08-15 14:12 ` Leonard Crestez 2019-08-15 14:12 ` Leonard Crestez
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