[PATCH 0/4] OMAP3: convert opp-v1 to opp-v2 and read speed binned / 720MHz grade bits

[PATCH 0/4] OMAP3: convert opp-v1 to opp-v2 and read speed binned / 720MHz grade bits

[H. Nikolaus Schaller]

Changes PATCH V1:
* fix typo in omap3-ldp.dts
  (reported by Tony Lindgren <tony@atomide.com>)
* extend commit message to describe the bit patterns needed
  for opp-supported-hw
* add error check to ioremap()
  (suggested by Christ van Willegen <cvwillegen@gmail.com>)
* update Documentation/devicetree/bindings/arm/omap/omap.txt
* change bulk update to use "ti,omap3430" and "ti,omap3630"
* update OPP4 of omap3430 to 1275 mV since it was not a valid
  voltage for the twl4030 driver (reported by Tony Lindgren
  <tony@atomide.com>)

RFC V2 2019-09-04 10:53:43:
* merge separate patch to remove opp-v1 table from n950-n9 into
  the general omap3xxx.dtsi patch
  (suggested by Viresh Kumar <viresh.kumar@linaro.org>)
* add legacy compatibility to ti,omap3430 and ti,omap3630 for
  the ti-cpufreq driver
* make driver and omap3xxx.dtsi patches pass checkpatch
* add bulk patch to explicitly define compatibility to ti,omap3430
  and ti,omap36xx in addition to ti,omap3 of all in-tree boards
  where it was missing

RFC V1 2019-09-02 12:55:55:

This patch set converts the omap3 opp tables to opp-v2 format
and extends the ti-cpufreq to support omap3.

It adds 720 MHz (omap34xx) and 1 GHz (omap36xx) OPPs but
tells the ti-cpufreq driver to disable them if the speed
binned / 720MHz grade eFuse bits indicate that the chip
is not rated for that speed. 

It has been tested (for chip variant detection, not reliability
of the high speed OPPs) on:

* BeagleBoard C2 (omap3530 600MHz)
* BeagleBoard XM B (dm3730 800MHz)
* GTA04A4 (dm3730 800MHz)
* GTA04A5 (dm3730 1GHz)


H. Nikolaus Schaller (4):
  cpufreq: ti-cpufreq: add support for omap34xx and omap36xx
  ARM: dts: replace opp-v1 tables by opp-v2 for omap34xx and omap36xx
  ARM: dts: omap3: bulk convert compatible to be explicitly ti,omap3430
    or ti,omap3630 or ti,am3517
  DTS: bindings: omap: update bindings documentation

 .../devicetree/bindings/arm/omap/omap.txt     | 30 +++---
 arch/arm/boot/dts/am3517_mt_ventoux.dts       |  2 +-
 .../boot/dts/logicpd-som-lv-35xx-devkit.dts   |  2 +-
 .../boot/dts/logicpd-torpedo-35xx-devkit.dts  |  2 +-
 arch/arm/boot/dts/omap3-beagle-xm.dts         |  2 +-
 arch/arm/boot/dts/omap3-beagle.dts            |  2 +-
 arch/arm/boot/dts/omap3-cm-t3530.dts          |  2 +-
 arch/arm/boot/dts/omap3-cm-t3730.dts          |  2 +-
 arch/arm/boot/dts/omap3-devkit8000-lcd43.dts  |  2 +-
 arch/arm/boot/dts/omap3-devkit8000-lcd70.dts  |  2 +-
 arch/arm/boot/dts/omap3-devkit8000.dts        |  2 +-
 arch/arm/boot/dts/omap3-gta04.dtsi            |  2 +-
 arch/arm/boot/dts/omap3-ha-lcd.dts            |  2 +-
 arch/arm/boot/dts/omap3-ha.dts                |  2 +-
 arch/arm/boot/dts/omap3-igep0020-rev-f.dts    |  2 +-
 arch/arm/boot/dts/omap3-igep0020.dts          |  2 +-
 arch/arm/boot/dts/omap3-igep0030-rev-g.dts    |  2 +-
 arch/arm/boot/dts/omap3-igep0030.dts          |  2 +-
 arch/arm/boot/dts/omap3-ldp.dts               |  2 +-
 arch/arm/boot/dts/omap3-lilly-a83x.dtsi       |  2 +-
 arch/arm/boot/dts/omap3-lilly-dbb056.dts      |  2 +-
 arch/arm/boot/dts/omap3-n9.dts                |  2 +-
 arch/arm/boot/dts/omap3-n950-n9.dtsi          |  7 --
 arch/arm/boot/dts/omap3-n950.dts              |  2 +-
 .../arm/boot/dts/omap3-overo-storm-alto35.dts |  2 +-
 .../boot/dts/omap3-overo-storm-chestnut43.dts |  2 +-
 .../boot/dts/omap3-overo-storm-gallop43.dts   |  2 +-
 .../arm/boot/dts/omap3-overo-storm-palo35.dts |  2 +-
 .../arm/boot/dts/omap3-overo-storm-palo43.dts |  2 +-
 .../arm/boot/dts/omap3-overo-storm-summit.dts |  2 +-
 arch/arm/boot/dts/omap3-overo-storm-tobi.dts  |  2 +-
 .../boot/dts/omap3-overo-storm-tobiduo.dts    |  2 +-
 arch/arm/boot/dts/omap3-pandora-1ghz.dts      |  2 +-
 arch/arm/boot/dts/omap3-sbc-t3530.dts         |  2 +-
 arch/arm/boot/dts/omap3-sbc-t3730.dts         |  2 +-
 arch/arm/boot/dts/omap3-sniper.dts            |  2 +-
 arch/arm/boot/dts/omap3-thunder.dts           |  2 +-
 arch/arm/boot/dts/omap3-zoom3.dts             |  2 +-
 arch/arm/boot/dts/omap3430-sdp.dts            |  2 +-
 arch/arm/boot/dts/omap34xx.dtsi               | 65 +++++++++++--
 arch/arm/boot/dts/omap36xx.dtsi               | 53 +++++++++--
 drivers/cpufreq/cpufreq-dt-platdev.c          |  2 +-
 drivers/cpufreq/ti-cpufreq.c                  | 91 ++++++++++++++++++-
 43 files changed, 245 insertions(+), 77 deletions(-)

-- 
2.19.1

[PATCH 1/4] cpufreq: ti-cpufreq: add support for omap34xx and omap36xx

[H. Nikolaus Schaller]

This adds code and tables to read the silicon revision and
eFuse (speed binned / 720 MHz grade) bits for selecting
opp-v2 table entries.

Since these bits are not always part of the syscon register
range (like for am33xx, am43, dra7), we add code to directly
read the register values using ioremap() if syscon access fails.

The format of the opp-supported-hw entries is that it has
two 32 bit bitfields. E.g.:

	opp-supported-hw = <0xffffffff 3>

The first value is matched against the bit position of the
silicon revision which is (see TRM)

omap34xx:
BIT(0)	ES1.0
BIT(1)	ES2.0
BIT(2)	ES2.1
BIT(3)	ES3.0
BIT(4)	ES3.1
BIT(7)	ES3.1.2

omap36xx:
BIT(0)	ES1.0
BIT(1)	ES1.1
BIT(2)	ES1.2

The second value is matched against the speed grade eFuse:

BIT(0)	no high speed OPP
BIT(1)	high speed OPP

This means for the example above that it is always enabled
while e.g.

	opp-supported-hw = <0x1 2>

enables the OPP only for ES1.0 BIT(0) and if the high speed
eFuse is set BIT(1).

Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
---
 drivers/cpufreq/ti-cpufreq.c | 91 +++++++++++++++++++++++++++++++++++-
 1 file changed, 89 insertions(+), 2 deletions(-)

diff --git a/drivers/cpufreq/ti-cpufreq.c b/drivers/cpufreq/ti-cpufreq.c
index 2ad1ae17932d..f2f58d689320 100644
--- a/drivers/cpufreq/ti-cpufreq.c
+++ b/drivers/cpufreq/ti-cpufreq.c
@@ -31,6 +31,11 @@
 #define DRA7_EFUSE_OD_MPU_OPP			BIT(1)
 #define DRA7_EFUSE_HIGH_MPU_OPP			BIT(2)
 
+#define OMAP3_CONTROL_DEVICE_STATUS		0x4800244C
+#define OMAP3_CONTROL_IDCODE			0x4830A204
+#define OMAP34xx_ProdID_SKUID			0x4830A20C
+#define OMAP3_SYSCON_BASE	(0x48000000 + 0x2000 + 0x270)
+
 #define VERSION_COUNT				2
 
 struct ti_cpufreq_data;
@@ -84,6 +89,13 @@ static unsigned long dra7_efuse_xlate(struct ti_cpufreq_data *opp_data,
 	return calculated_efuse;
 }
 
+static unsigned long omap3_efuse_xlate(struct ti_cpufreq_data *opp_data,
+				      unsigned long efuse)
+{
+	/* OPP enable bit ("Speed Binned") */
+	return BIT(efuse);
+}
+
 static struct ti_cpufreq_soc_data am3x_soc_data = {
 	.efuse_xlate = amx3_efuse_xlate,
 	.efuse_fallback = AM33XX_800M_ARM_MPU_MAX_FREQ,
@@ -111,6 +123,56 @@ static struct ti_cpufreq_soc_data dra7_soc_data = {
 	.multi_regulator = true,
 };
 
+/*
+ * OMAP35x TRM (SPRUF98K):
+ *  CONTROL_IDCODE (0x4830 A204) describes Silicon revisions.
+ *  Control OMAP Status Register 15:0 (Address 0x4800 244C)
+ *    to separate between omap3503, omap3515, omap3525, omap3530
+ *    and feature presence.
+ *    There are encodings for versions limited to 400/266MHz
+ *    but we ignore.
+ *    Not clear if this also holds for omap34xx.
+ *  some eFuse values e.g. CONTROL_FUSE_OPP1_VDD1
+ *    are stored in the SYSCON register range
+ *  Register 0x4830A20C [ProdID.SKUID] [0:3]
+ *    0x0 for normal 600/430MHz device.
+ *    0x8 for 720/520MHz device.
+ *    Not clear what omap34xx value is.
+ */
+
+static struct ti_cpufreq_soc_data omap34xx_soc_data = {
+	.efuse_xlate = omap3_efuse_xlate,
+	.efuse_offset = OMAP34xx_ProdID_SKUID - OMAP3_SYSCON_BASE,
+	.efuse_shift = 3,
+	.efuse_mask = BIT(3),
+	.rev_offset = OMAP3_CONTROL_IDCODE - OMAP3_SYSCON_BASE,
+	.multi_regulator = false,
+};
+
+/*
+ * AM/DM37x TRM (SPRUGN4M)
+ *  CONTROL_IDCODE (0x4830 A204) describes Silicon revisions.
+ *  Control Device Status Register 15:0 (Address 0x4800 244C)
+ *    to separate between am3703, am3715, dm3725, dm3730
+ *    and feature presence.
+ *   Speed Binned = Bit 9
+ *     0 800/600 MHz
+ *     1 1000/800 MHz
+ *  some eFuse values e.g. CONTROL_FUSE_OPP 1G_VDD1
+ *    are stored in the SYSCON register range.
+ *  There is no 0x4830A20C [ProdID.SKUID] register (exists but
+ *    seems to always read as 0).
+ */
+
+static struct ti_cpufreq_soc_data omap36xx_soc_data = {
+	.efuse_xlate = omap3_efuse_xlate,
+	.efuse_offset = OMAP3_CONTROL_DEVICE_STATUS - OMAP3_SYSCON_BASE,
+	.efuse_shift = 9,
+	.efuse_mask = BIT(9),
+	.rev_offset = OMAP3_CONTROL_IDCODE - OMAP3_SYSCON_BASE,
+	.multi_regulator = false,
+};
+
 /**
  * ti_cpufreq_get_efuse() - Parse and return efuse value present on SoC
  * @opp_data: pointer to ti_cpufreq_data context
@@ -127,7 +189,17 @@ static int ti_cpufreq_get_efuse(struct ti_cpufreq_data *opp_data,
 
 	ret = regmap_read(opp_data->syscon, opp_data->soc_data->efuse_offset,
 			  &efuse);
-	if (ret) {
+	if (ret == -EIO) {
+		/* not a syscon register! */
+		void __iomem *regs = ioremap(OMAP3_SYSCON_BASE +
+				opp_data->soc_data->efuse_offset, 4);
+
+		if (!regs)
+			return -ENOMEM;
+		efuse = readl(regs);
+		iounmap(regs);
+		}
+	else if (ret) {
 		dev_err(dev,
 			"Failed to read the efuse value from syscon: %d\n",
 			ret);
@@ -158,7 +230,17 @@ static int ti_cpufreq_get_rev(struct ti_cpufreq_data *opp_data,
 
 	ret = regmap_read(opp_data->syscon, opp_data->soc_data->rev_offset,
 			  &revision);
-	if (ret) {
+	if (ret == -EIO) {
+		/* not a syscon register! */
+		void __iomem *regs = ioremap(OMAP3_SYSCON_BASE +
+				opp_data->soc_data->rev_offset, 4);
+
+		if (!regs)
+			return -ENOMEM;
+		revision = readl(regs);
+		iounmap(regs);
+		}
+	else if (ret) {
 		dev_err(dev,
 			"Failed to read the revision number from syscon: %d\n",
 			ret);
@@ -190,6 +272,11 @@ static const struct of_device_id ti_cpufreq_of_match[] = {
 	{ .compatible = "ti,am33xx", .data = &am3x_soc_data, },
 	{ .compatible = "ti,am43", .data = &am4x_soc_data, },
 	{ .compatible = "ti,dra7", .data = &dra7_soc_data },
+	{ .compatible = "ti,omap34xx", .data = &omap34xx_soc_data, },
+	{ .compatible = "ti,omap36xx", .data = &omap36xx_soc_data, },
+	/* legacy */
+	{ .compatible = "ti,omap3430", .data = &omap34xx_soc_data, },
+	{ .compatible = "ti,omap3630", .data = &omap36xx_soc_data, },
 	{},
 };
 
-- 
2.19.1

[PATCH 2/4] ARM: dts: replace opp-v1 tables by opp-v2 for omap34xx and omap36xx

[H. Nikolaus Schaller]

In addition, move omap3 from whitelist to blacklist in cpufreq-dt-platdev
in the same patch, because doing either first breaks operation and
may make trouble in bisect.

We also can remove opp-v1 table for omap3-n950-n9 since it is now
automatically detected.

We also fix a wrong OPP4 voltage for omap3430 which must be
0.6V + 54*12.5mV = 1275mV. Otherwise the twl4030 driver will reject
this OPP.

Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
---
 arch/arm/boot/dts/omap3-n950-n9.dtsi |  7 ---
 arch/arm/boot/dts/omap34xx.dtsi      | 65 ++++++++++++++++++++++++----
 arch/arm/boot/dts/omap36xx.dtsi      | 53 +++++++++++++++++++----
 drivers/cpufreq/cpufreq-dt-platdev.c |  2 +-
 4 files changed, 102 insertions(+), 25 deletions(-)

diff --git a/arch/arm/boot/dts/omap3-n950-n9.dtsi b/arch/arm/boot/dts/omap3-n950-n9.dtsi
index 5441e9ffdbb4..e98b0c615f19 100644
--- a/arch/arm/boot/dts/omap3-n950-n9.dtsi
+++ b/arch/arm/boot/dts/omap3-n950-n9.dtsi
@@ -11,13 +11,6 @@
 	cpus {
 		cpu@0 {
 			cpu0-supply = <&vcc>;
-			operating-points = <
-				/* kHz    uV */
-				300000  1012500
-				600000  1200000
-				800000  1325000
-				1000000	1375000
-			>;
 		};
 	};
 
diff --git a/arch/arm/boot/dts/omap34xx.dtsi b/arch/arm/boot/dts/omap34xx.dtsi
index f572a477f74c..91154829f86a 100644
--- a/arch/arm/boot/dts/omap34xx.dtsi
+++ b/arch/arm/boot/dts/omap34xx.dtsi
@@ -16,19 +16,66 @@
 / {
 	cpus {
 		cpu: cpu@0 {
-			/* OMAP343x/OMAP35xx variants OPP1-5 */
-			operating-points = <
-				/* kHz    uV */
-				125000   975000
-				250000  1075000
-				500000  1200000
-				550000  1270000
-				600000  1350000
-			>;
+			/* OMAP343x/OMAP35xx variants OPP1-6 */
+			operating-points-v2 = <&cpu0_opp_table>;
+
 			clock-latency = <300000>; /* From legacy driver */
 		};
 	};
 
+	/* see Documentation/devicetree/bindings/opp/opp.txt */
+	cpu0_opp_table: opp-table {
+		compatible = "operating-points-v2-ti-cpu";
+		syscon = <&scm_conf>;
+
+		opp1-125000000 {
+			opp-hz = /bits/ 64 <125000000>;
+			/*
+			 * we currently only select the max voltage from table
+			 * Table 3-3 of the omap3530 Data sheet (SPRS507F).
+			 * Format is: <target min max>
+			 */
+			opp-microvolt = <975000 975000 975000>;
+			/*
+			 * first value is silicon revision bit mask
+			 * second one 720MHz Device Identification bit mask
+			 */
+			opp-supported-hw = <0xffffffff 3>;
+		};
+
+		opp2-250000000 {
+			opp-hz = /bits/ 64 <250000000>;
+			opp-microvolt = <1075000 1075000 1075000>;
+			opp-supported-hw = <0xffffffff 3>;
+			opp-suspend;
+		};
+
+		opp3-500000000 {
+			opp-hz = /bits/ 64 <500000000>;
+			opp-microvolt = <1200000 1200000 1200000>;
+			opp-supported-hw = <0xffffffff 3>;
+		};
+
+		opp4-550000000 {
+			opp-hz = /bits/ 64 <550000000>;
+			opp-microvolt = <1275000 1275000 1275000>;
+			opp-supported-hw = <0xffffffff 3>;
+		};
+
+		opp5-600000000 {
+			opp-hz = /bits/ 64 <600000000>;
+			opp-microvolt = <1350000 1350000 1350000>;
+			opp-supported-hw = <0xffffffff 3>;
+		};
+
+		opp6-720000000 {
+			opp-hz = /bits/ 64 <720000000>;
+			opp-microvolt = <1350000 1350000 1350000>;
+			/* only high-speed grade omap3530 devices */
+			opp-supported-hw = <0xffffffff 2>;
+		};
+	};
+
 	ocp@68000000 {
 		omap3_pmx_core2: pinmux@480025d8 {
 			compatible = "ti,omap3-padconf", "pinctrl-single";
diff --git a/arch/arm/boot/dts/omap36xx.dtsi b/arch/arm/boot/dts/omap36xx.dtsi
index 6fb23ada1f64..44f25b0eb45b 100644
--- a/arch/arm/boot/dts/omap36xx.dtsi
+++ b/arch/arm/boot/dts/omap36xx.dtsi
@@ -19,15 +19,52 @@
 	};
 
 	cpus {
-		/* OMAP3630/OMAP37xx 'standard device' variants OPP50 to OPP130 */
+		/* OMAP3630/OMAP37xx variants OPP50 to OPP130 and OPP1G */
 		cpu: cpu@0 {
-			operating-points = <
-				/* kHz    uV */
-				300000  1012500
-				600000  1200000
-				800000  1325000
-			>;
-			clock-latency = <300000>; /* From legacy driver */
+			operating-points-v2 = <&cpu0_opp_table>;
+
+			clock-latency = <300000>; /* From omap-cpufreq driver */
+		};
+	};
+
+	/* see Documentation/devicetree/bindings/opp/opp.txt */
+	cpu0_opp_table: opp-table {
+		compatible = "operating-points-v2-ti-cpu";
+		syscon = <&scm_conf>;
+
+		opp50-300000000 {
+			opp-hz = /bits/ 64 <300000000>;
+			/*
+			 * we currently only select the max voltage from table
+			 * Table 4-19 of the DM3730 Data sheet (SPRS685B)
+			 * Format is: <target min max>
+			 */
+			opp-microvolt = <1012500 1012500 1012500>;
+			/*
+			 * first value is silicon revision bit mask
+			 * second one is "speed binned" bit mask
+			 */
+			opp-supported-hw = <0xffffffff 3>;
+			opp-suspend;
+		};
+
+		opp100-600000000 {
+			opp-hz = /bits/ 64 <600000000>;
+			opp-microvolt = <1200000 1200000 1200000>;
+			opp-supported-hw = <0xffffffff 3>;
+		};
+
+		opp130-800000000 {
+			opp-hz = /bits/ 64 <800000000>;
+			opp-microvolt = <1325000 1325000 1325000>;
+			opp-supported-hw = <0xffffffff 3>;
+		};
+
+		opp1g-1000000000 {
+			opp-hz = /bits/ 64 <1000000000>;
+			opp-microvolt = <1375000 1375000 1375000>;
+			/* only on am/dm37x with speed-binned bit set */
+			opp-supported-hw = <0xffffffff 2>;
 		};
 	};
 
diff --git a/drivers/cpufreq/cpufreq-dt-platdev.c b/drivers/cpufreq/cpufreq-dt-platdev.c
index 03dc4244ab00..68b7fc4225f8 100644
--- a/drivers/cpufreq/cpufreq-dt-platdev.c
+++ b/drivers/cpufreq/cpufreq-dt-platdev.c
@@ -86,7 +86,6 @@ static const struct of_device_id whitelist[] __initconst = {
 	{ .compatible = "st-ericsson,u9540", },
 
 	{ .compatible = "ti,omap2", },
-	{ .compatible = "ti,omap3", },
 	{ .compatible = "ti,omap4", },
 	{ .compatible = "ti,omap5", },
 
@@ -132,6 +131,7 @@ static const struct of_device_id blacklist[] __initconst = {
 	{ .compatible = "ti,am33xx", },
 	{ .compatible = "ti,am43", },
 	{ .compatible = "ti,dra7", },
+	{ .compatible = "ti,omap3", },
 
 	{ }
 };
-- 
2.19.1

[PATCH 3/4] ARM: dts: omap3: bulk convert compatible to be explicitly ti,omap3430 or ti,omap3630 or ti,am3517

[H. Nikolaus Schaller]

For the ti-cpufreq driver we need a clear separation between omap34 and omap36 families
since they have different silicon revisions and efuses.

So far ti,omap3630/ti,omap36xx is just an additional flag to ti,omap3 while omap34 has no
required entry.

Therefore we can not match omap34 boards properly.

This needs to add ti,omap3430 and ti,omap3630 where it is missing.

We also clean up some instances of missing ti,am3517 so that we can rely on
seeing either one of:

ti,am3517
ti,omap3430
ti,omap3630

in addition to ti,omap3.

We leave ti,omap34xx and ti,omap36xx untouched for compatibility.

The script to do the conversion is:

find arch/arm/boot/dts -name '*.dts*' -exec fgrep -q '"ti,omap34xx"' {} \; ! -exec fgrep -q '"ti,omap3430"' {} \; -exec sed -i '' 's/"ti,omap34xx"/"ti,omap3430", "ti,omap34xx"/' {} \;
find arch/arm/boot/dts -name '*.dts*' -exec fgrep -q '"ti,omap36xx"' {} \; ! -exec fgrep -q '"ti,omap3630"' {} \; -exec sed -i '' 's/"ti,omap36xx"/"ti,omap3630", "ti,omap36xx"/' {} \;
find arch/arm/boot/dts \( -name 'omap*.dts*' -o -name 'logic*.dts*' \) -exec fgrep -q '"ti,omap3"' {} \; ! -exec fgrep -q '"ti,omap3630"' {} \; ! -exec fgrep -q '"ti,omap36xx"' {} \; ! -exec fgrep -q '"ti,am3517"' {} \; ! -exec fgrep -q '"ti,omap34xx"' {} \; ! -exec fgrep -q '"ti,omap3430"' {} \; -exec sed -i '' 's/"ti,omap3"/"ti,omap3430", "ti,omap3"/' {} \;

So if your out-of-tree omap3 board does not show any OPPs, please check
the compatibility entry and update if needed.

Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
---
 arch/arm/boot/dts/am3517_mt_ventoux.dts            | 2 +-
 arch/arm/boot/dts/logicpd-som-lv-35xx-devkit.dts   | 2 +-
 arch/arm/boot/dts/logicpd-torpedo-35xx-devkit.dts  | 2 +-
 arch/arm/boot/dts/omap3-beagle-xm.dts              | 2 +-
 arch/arm/boot/dts/omap3-beagle.dts                 | 2 +-
 arch/arm/boot/dts/omap3-cm-t3530.dts               | 2 +-
 arch/arm/boot/dts/omap3-cm-t3730.dts               | 2 +-
 arch/arm/boot/dts/omap3-devkit8000-lcd43.dts       | 2 +-
 arch/arm/boot/dts/omap3-devkit8000-lcd70.dts       | 2 +-
 arch/arm/boot/dts/omap3-devkit8000.dts             | 2 +-
 arch/arm/boot/dts/omap3-gta04.dtsi                 | 2 +-
 arch/arm/boot/dts/omap3-ha-lcd.dts                 | 2 +-
 arch/arm/boot/dts/omap3-ha.dts                     | 2 +-
 arch/arm/boot/dts/omap3-igep0020-rev-f.dts         | 2 +-
 arch/arm/boot/dts/omap3-igep0020.dts               | 2 +-
 arch/arm/boot/dts/omap3-igep0030-rev-g.dts         | 2 +-
 arch/arm/boot/dts/omap3-igep0030.dts               | 2 +-
 arch/arm/boot/dts/omap3-ldp.dts                    | 2 +-
 arch/arm/boot/dts/omap3-lilly-a83x.dtsi            | 2 +-
 arch/arm/boot/dts/omap3-lilly-dbb056.dts           | 2 +-
 arch/arm/boot/dts/omap3-n9.dts                     | 2 +-
 arch/arm/boot/dts/omap3-n950.dts                   | 2 +-
 arch/arm/boot/dts/omap3-overo-storm-alto35.dts     | 2 +-
 arch/arm/boot/dts/omap3-overo-storm-chestnut43.dts | 2 +-
 arch/arm/boot/dts/omap3-overo-storm-gallop43.dts   | 2 +-
 arch/arm/boot/dts/omap3-overo-storm-palo35.dts     | 2 +-
 arch/arm/boot/dts/omap3-overo-storm-palo43.dts     | 2 +-
 arch/arm/boot/dts/omap3-overo-storm-summit.dts     | 2 +-
 arch/arm/boot/dts/omap3-overo-storm-tobi.dts       | 2 +-
 arch/arm/boot/dts/omap3-overo-storm-tobiduo.dts    | 2 +-
 arch/arm/boot/dts/omap3-pandora-1ghz.dts           | 2 +-
 arch/arm/boot/dts/omap3-sbc-t3530.dts              | 2 +-
 arch/arm/boot/dts/omap3-sbc-t3730.dts              | 2 +-
 arch/arm/boot/dts/omap3-sniper.dts                 | 2 +-
 arch/arm/boot/dts/omap3-thunder.dts                | 2 +-
 arch/arm/boot/dts/omap3-zoom3.dts                  | 2 +-
 arch/arm/boot/dts/omap3430-sdp.dts                 | 2 +-
 37 files changed, 37 insertions(+), 37 deletions(-)

diff --git a/arch/arm/boot/dts/am3517_mt_ventoux.dts b/arch/arm/boot/dts/am3517_mt_ventoux.dts
index e507e4ae0d88..e7d7124a34ba 100644
--- a/arch/arm/boot/dts/am3517_mt_ventoux.dts
+++ b/arch/arm/boot/dts/am3517_mt_ventoux.dts
@@ -8,7 +8,7 @@
 
 / {
 	model = "TeeJet Mt.Ventoux";
-	compatible = "teejet,mt_ventoux", "ti,omap3";
+	compatible = "teejet,mt_ventoux", "ti,am3517", "ti,omap3";
 
 	memory@80000000 {
 		device_type = "memory";
diff --git a/arch/arm/boot/dts/logicpd-som-lv-35xx-devkit.dts b/arch/arm/boot/dts/logicpd-som-lv-35xx-devkit.dts
index f7a841a28865..2a0a98fe67f0 100644
--- a/arch/arm/boot/dts/logicpd-som-lv-35xx-devkit.dts
+++ b/arch/arm/boot/dts/logicpd-som-lv-35xx-devkit.dts
@@ -9,5 +9,5 @@
 
 / {
 	model = "LogicPD Zoom OMAP35xx SOM-LV Development Kit";
-	compatible = "logicpd,dm3730-som-lv-devkit", "ti,omap3";
+	compatible = "logicpd,dm3730-som-lv-devkit", "ti,omap3430", "ti,omap3";
 };
diff --git a/arch/arm/boot/dts/logicpd-torpedo-35xx-devkit.dts b/arch/arm/boot/dts/logicpd-torpedo-35xx-devkit.dts
index 7675bc3fa868..57bae2aa910e 100644
--- a/arch/arm/boot/dts/logicpd-torpedo-35xx-devkit.dts
+++ b/arch/arm/boot/dts/logicpd-torpedo-35xx-devkit.dts
@@ -9,5 +9,5 @@
 
 / {
 	model = "LogicPD Zoom OMAP35xx Torpedo Development Kit";
-	compatible = "logicpd,dm3730-torpedo-devkit", "ti,omap3";
+	compatible = "logicpd,dm3730-torpedo-devkit", "ti,omap3430", "ti,omap3";
 };
diff --git a/arch/arm/boot/dts/omap3-beagle-xm.dts b/arch/arm/boot/dts/omap3-beagle-xm.dts
index 1aa99fc1487a..125ed933ca75 100644
--- a/arch/arm/boot/dts/omap3-beagle-xm.dts
+++ b/arch/arm/boot/dts/omap3-beagle-xm.dts
@@ -8,7 +8,7 @@
 
 / {
 	model = "TI OMAP3 BeagleBoard xM";
-	compatible = "ti,omap3-beagle-xm", "ti,omap36xx", "ti,omap3";
+	compatible = "ti,omap3-beagle-xm", "ti,omap3630", "ti,omap36xx", "ti,omap3";
 
 	cpus {
 		cpu@0 {
diff --git a/arch/arm/boot/dts/omap3-beagle.dts b/arch/arm/boot/dts/omap3-beagle.dts
index e3df3c166902..4ed3f93f5841 100644
--- a/arch/arm/boot/dts/omap3-beagle.dts
+++ b/arch/arm/boot/dts/omap3-beagle.dts
@@ -8,7 +8,7 @@
 
 / {
 	model = "TI OMAP3 BeagleBoard";
-	compatible = "ti,omap3-beagle", "ti,omap3";
+	compatible = "ti,omap3-beagle", "ti,omap3430", "ti,omap3";
 
 	cpus {
 		cpu@0 {
diff --git a/arch/arm/boot/dts/omap3-cm-t3530.dts b/arch/arm/boot/dts/omap3-cm-t3530.dts
index 76e52c78cbb4..32dbaeaed147 100644
--- a/arch/arm/boot/dts/omap3-cm-t3530.dts
+++ b/arch/arm/boot/dts/omap3-cm-t3530.dts
@@ -9,7 +9,7 @@
 
 / {
 	model = "CompuLab CM-T3530";
-	compatible = "compulab,omap3-cm-t3530", "ti,omap34xx", "ti,omap3";
+	compatible = "compulab,omap3-cm-t3530", "ti,omap3430", "ti,omap34xx", "ti,omap3";
 
 	/* Regulator to trigger the reset signal of the Wifi module */
 	mmc2_sdio_reset: regulator-mmc2-sdio-reset {
diff --git a/arch/arm/boot/dts/omap3-cm-t3730.dts b/arch/arm/boot/dts/omap3-cm-t3730.dts
index 6e944dfa0f3d..683819bf0915 100644
--- a/arch/arm/boot/dts/omap3-cm-t3730.dts
+++ b/arch/arm/boot/dts/omap3-cm-t3730.dts
@@ -9,7 +9,7 @@
 
 / {
 	model = "CompuLab CM-T3730";
-	compatible = "compulab,omap3-cm-t3730", "ti,omap36xx", "ti,omap3";
+	compatible = "compulab,omap3-cm-t3730", "ti,omap3630", "ti,omap36xx", "ti,omap3";
 
 	wl12xx_vmmc2: wl12xx_vmmc2 {
 		compatible = "regulator-fixed";
diff --git a/arch/arm/boot/dts/omap3-devkit8000-lcd43.dts b/arch/arm/boot/dts/omap3-devkit8000-lcd43.dts
index a80fc60bc773..afed85078ad8 100644
--- a/arch/arm/boot/dts/omap3-devkit8000-lcd43.dts
+++ b/arch/arm/boot/dts/omap3-devkit8000-lcd43.dts
@@ -11,7 +11,7 @@
 #include "omap3-devkit8000-lcd-common.dtsi"
 / {
 	model = "TimLL OMAP3 Devkit8000 with 4.3'' LCD panel";
-	compatible = "timll,omap3-devkit8000", "ti,omap3";
+	compatible = "timll,omap3-devkit8000", "ti,omap3430", "ti,omap3";
 
 	lcd0: display {
 		panel-timing {
diff --git a/arch/arm/boot/dts/omap3-devkit8000-lcd70.dts b/arch/arm/boot/dts/omap3-devkit8000-lcd70.dts
index 0753776071f8..07c51a105c0d 100644
--- a/arch/arm/boot/dts/omap3-devkit8000-lcd70.dts
+++ b/arch/arm/boot/dts/omap3-devkit8000-lcd70.dts
@@ -11,7 +11,7 @@
 #include "omap3-devkit8000-lcd-common.dtsi"
 / {
 	model = "TimLL OMAP3 Devkit8000 with 7.0'' LCD panel";
-	compatible = "timll,omap3-devkit8000", "ti,omap3";
+	compatible = "timll,omap3-devkit8000", "ti,omap3430", "ti,omap3";
 
 	lcd0: display {
 		panel-timing {
diff --git a/arch/arm/boot/dts/omap3-devkit8000.dts b/arch/arm/boot/dts/omap3-devkit8000.dts
index faafc48d8f61..162d0726b008 100644
--- a/arch/arm/boot/dts/omap3-devkit8000.dts
+++ b/arch/arm/boot/dts/omap3-devkit8000.dts
@@ -7,7 +7,7 @@
 #include "omap3-devkit8000-common.dtsi"
 / {
 	model = "TimLL OMAP3 Devkit8000";
-	compatible = "timll,omap3-devkit8000", "ti,omap3";
+	compatible = "timll,omap3-devkit8000", "ti,omap3430", "ti,omap3";
 
 	aliases {
 		display1 = &dvi0;
diff --git a/arch/arm/boot/dts/omap3-gta04.dtsi b/arch/arm/boot/dts/omap3-gta04.dtsi
index b295f6fad2a5..25b6ed9203e1 100644
--- a/arch/arm/boot/dts/omap3-gta04.dtsi
+++ b/arch/arm/boot/dts/omap3-gta04.dtsi
@@ -11,7 +11,7 @@
 
 / {
 	model = "OMAP3 GTA04";
-	compatible = "ti,omap3-gta04", "ti,omap36xx", "ti,omap3";
+	compatible = "ti,omap3-gta04", "ti,omap3630", "ti,omap36xx", "ti,omap3";
 
 	cpus {
 		cpu@0 {
diff --git a/arch/arm/boot/dts/omap3-ha-lcd.dts b/arch/arm/boot/dts/omap3-ha-lcd.dts
index badb9b3c8897..c9ecbc45c8e2 100644
--- a/arch/arm/boot/dts/omap3-ha-lcd.dts
+++ b/arch/arm/boot/dts/omap3-ha-lcd.dts
@@ -8,7 +8,7 @@
 
 / {
 	model = "TI OMAP3 HEAD acoustics LCD-baseboard with TAO3530 SOM";
-	compatible = "headacoustics,omap3-ha-lcd", "technexion,omap3-tao3530", "ti,omap34xx", "ti,omap3";
+	compatible = "headacoustics,omap3-ha-lcd", "technexion,omap3-tao3530", "ti,omap3430", "ti,omap34xx", "ti,omap3";
 };
 
 &omap3_pmx_core {
diff --git a/arch/arm/boot/dts/omap3-ha.dts b/arch/arm/boot/dts/omap3-ha.dts
index a5365252bfbe..35c4e15abeb7 100644
--- a/arch/arm/boot/dts/omap3-ha.dts
+++ b/arch/arm/boot/dts/omap3-ha.dts
@@ -8,7 +8,7 @@
 
 / {
 	model = "TI OMAP3 HEAD acoustics baseboard with TAO3530 SOM";
-	compatible = "headacoustics,omap3-ha", "technexion,omap3-tao3530", "ti,omap34xx", "ti,omap3";
+	compatible = "headacoustics,omap3-ha", "technexion,omap3-tao3530", "ti,omap3430", "ti,omap34xx", "ti,omap3";
 };
 
 &omap3_pmx_core {
diff --git a/arch/arm/boot/dts/omap3-igep0020-rev-f.dts b/arch/arm/boot/dts/omap3-igep0020-rev-f.dts
index 03dcd05fb8a0..d134ce1cffc0 100644
--- a/arch/arm/boot/dts/omap3-igep0020-rev-f.dts
+++ b/arch/arm/boot/dts/omap3-igep0020-rev-f.dts
@@ -10,7 +10,7 @@
 
 / {
 	model = "IGEPv2 Rev. F (TI OMAP AM/DM37x)";
-	compatible = "isee,omap3-igep0020-rev-f", "ti,omap36xx", "ti,omap3";
+	compatible = "isee,omap3-igep0020-rev-f", "ti,omap3630", "ti,omap36xx", "ti,omap3";
 
 	/* Regulator to trigger the WL_EN signal of the Wifi module */
 	lbep5clwmc_wlen: regulator-lbep5clwmc-wlen {
diff --git a/arch/arm/boot/dts/omap3-igep0020.dts b/arch/arm/boot/dts/omap3-igep0020.dts
index 6d0519e3dfd0..e341535a7162 100644
--- a/arch/arm/boot/dts/omap3-igep0020.dts
+++ b/arch/arm/boot/dts/omap3-igep0020.dts
@@ -10,7 +10,7 @@
 
 / {
 	model = "IGEPv2 Rev. C (TI OMAP AM/DM37x)";
-	compatible = "isee,omap3-igep0020", "ti,omap36xx", "ti,omap3";
+	compatible = "isee,omap3-igep0020", "ti,omap3630", "ti,omap36xx", "ti,omap3";
 
 	vmmcsdio_fixed: fixedregulator-mmcsdio {
 		compatible = "regulator-fixed";
diff --git a/arch/arm/boot/dts/omap3-igep0030-rev-g.dts b/arch/arm/boot/dts/omap3-igep0030-rev-g.dts
index 060acd1e803a..9ca1d0f61964 100644
--- a/arch/arm/boot/dts/omap3-igep0030-rev-g.dts
+++ b/arch/arm/boot/dts/omap3-igep0030-rev-g.dts
@@ -10,7 +10,7 @@
 
 / {
 	model = "IGEP COM MODULE Rev. G (TI OMAP AM/DM37x)";
-	compatible = "isee,omap3-igep0030-rev-g", "ti,omap36xx", "ti,omap3";
+	compatible = "isee,omap3-igep0030-rev-g", "ti,omap3630", "ti,omap36xx", "ti,omap3";
 
 	/* Regulator to trigger the WL_EN signal of the Wifi module */
 	lbep5clwmc_wlen: regulator-lbep5clwmc-wlen {
diff --git a/arch/arm/boot/dts/omap3-igep0030.dts b/arch/arm/boot/dts/omap3-igep0030.dts
index 25170bd3c573..32f31035daa2 100644
--- a/arch/arm/boot/dts/omap3-igep0030.dts
+++ b/arch/arm/boot/dts/omap3-igep0030.dts
@@ -10,7 +10,7 @@
 
 / {
 	model = "IGEP COM MODULE Rev. E (TI OMAP AM/DM37x)";
-	compatible = "isee,omap3-igep0030", "ti,omap36xx", "ti,omap3";
+	compatible = "isee,omap3-igep0030", "ti,omap3630", "ti,omap36xx", "ti,omap3";
 
 	vmmcsdio_fixed: fixedregulator-mmcsdio {
 		compatible = "regulator-fixed";
diff --git a/arch/arm/boot/dts/omap3-ldp.dts b/arch/arm/boot/dts/omap3-ldp.dts
index 9a5fde2d9bce..ec9ba04ef43b 100644
--- a/arch/arm/boot/dts/omap3-ldp.dts
+++ b/arch/arm/boot/dts/omap3-ldp.dts
@@ -10,7 +10,7 @@
 
 / {
 	model = "TI OMAP3430 LDP (Zoom1 Labrador)";
-	compatible = "ti,omap3-ldp", "ti,omap3";
+	compatible = "ti,omap3-ldp", "ti,omap3430", "ti,omap3";
 
 	memory@80000000 {
 		device_type = "memory";
diff --git a/arch/arm/boot/dts/omap3-lilly-a83x.dtsi b/arch/arm/boot/dts/omap3-lilly-a83x.dtsi
index c22833d4e568..73d477898ec2 100644
--- a/arch/arm/boot/dts/omap3-lilly-a83x.dtsi
+++ b/arch/arm/boot/dts/omap3-lilly-a83x.dtsi
@@ -7,7 +7,7 @@
 
 / {
 	model = "INCOstartec LILLY-A83X module (DM3730)";
-	compatible = "incostartec,omap3-lilly-a83x", "ti,omap36xx", "ti,omap3";
+	compatible = "incostartec,omap3-lilly-a83x", "ti,omap3630", "ti,omap36xx", "ti,omap3";
 
 	chosen {
 			bootargs = "console=ttyO0,115200n8 vt.global_cursor_default=0 consoleblank=0";
diff --git a/arch/arm/boot/dts/omap3-lilly-dbb056.dts b/arch/arm/boot/dts/omap3-lilly-dbb056.dts
index fec335400074..ecb4ef738e07 100644
--- a/arch/arm/boot/dts/omap3-lilly-dbb056.dts
+++ b/arch/arm/boot/dts/omap3-lilly-dbb056.dts
@@ -8,7 +8,7 @@
 
 / {
 	model = "INCOstartec LILLY-DBB056 (DM3730)";
-	compatible = "incostartec,omap3-lilly-dbb056", "incostartec,omap3-lilly-a83x", "ti,omap36xx", "ti,omap3";
+	compatible = "incostartec,omap3-lilly-dbb056", "incostartec,omap3-lilly-a83x", "ti,omap3630", "ti,omap36xx", "ti,omap3";
 };
 
 &twl {
diff --git a/arch/arm/boot/dts/omap3-n9.dts b/arch/arm/boot/dts/omap3-n9.dts
index 74c0ff2350d3..2495a696cec6 100644
--- a/arch/arm/boot/dts/omap3-n9.dts
+++ b/arch/arm/boot/dts/omap3-n9.dts
@@ -12,7 +12,7 @@
 
 / {
 	model = "Nokia N9";
-	compatible = "nokia,omap3-n9", "ti,omap36xx", "ti,omap3";
+	compatible = "nokia,omap3-n9", "ti,omap3630", "ti,omap36xx", "ti,omap3";
 };
 
 &i2c2 {
diff --git a/arch/arm/boot/dts/omap3-n950.dts b/arch/arm/boot/dts/omap3-n950.dts
index 9886bf8b90ab..31d47a1fad84 100644
--- a/arch/arm/boot/dts/omap3-n950.dts
+++ b/arch/arm/boot/dts/omap3-n950.dts
@@ -12,7 +12,7 @@
 
 / {
 	model = "Nokia N950";
-	compatible = "nokia,omap3-n950", "ti,omap36xx", "ti,omap3";
+	compatible = "nokia,omap3-n950", "ti,omap3630", "ti,omap36xx", "ti,omap3";
 
 	keys {
 		compatible = "gpio-keys";
diff --git a/arch/arm/boot/dts/omap3-overo-storm-alto35.dts b/arch/arm/boot/dts/omap3-overo-storm-alto35.dts
index 18338576c41d..7f04dfad8203 100644
--- a/arch/arm/boot/dts/omap3-overo-storm-alto35.dts
+++ b/arch/arm/boot/dts/omap3-overo-storm-alto35.dts
@@ -14,5 +14,5 @@
 
 / {
 	model = "OMAP36xx/AM37xx/DM37xx Gumstix Overo on Alto35";
-	compatible = "gumstix,omap3-overo-alto35", "gumstix,omap3-overo", "ti,omap36xx", "ti,omap3";
+	compatible = "gumstix,omap3-overo-alto35", "gumstix,omap3-overo", "ti,omap3630", "ti,omap36xx", "ti,omap3";
 };
diff --git a/arch/arm/boot/dts/omap3-overo-storm-chestnut43.dts b/arch/arm/boot/dts/omap3-overo-storm-chestnut43.dts
index f204c8af8281..bc5a04e03336 100644
--- a/arch/arm/boot/dts/omap3-overo-storm-chestnut43.dts
+++ b/arch/arm/boot/dts/omap3-overo-storm-chestnut43.dts
@@ -14,7 +14,7 @@
 
 / {
 	model = "OMAP36xx/AM37xx/DM37xx Gumstix Overo on Chestnut43";
-	compatible = "gumstix,omap3-overo-chestnut43", "gumstix,omap3-overo", "ti,omap36xx", "ti,omap3";
+	compatible = "gumstix,omap3-overo-chestnut43", "gumstix,omap3-overo", "ti,omap3630", "ti,omap36xx", "ti,omap3";
 };
 
 &omap3_pmx_core2 {
diff --git a/arch/arm/boot/dts/omap3-overo-storm-gallop43.dts b/arch/arm/boot/dts/omap3-overo-storm-gallop43.dts
index c633f7cee68e..065c31cbf0e2 100644
--- a/arch/arm/boot/dts/omap3-overo-storm-gallop43.dts
+++ b/arch/arm/boot/dts/omap3-overo-storm-gallop43.dts
@@ -14,7 +14,7 @@
 
 / {
 	model = "OMAP36xx/AM37xx/DM37xx Gumstix Overo on Gallop43";
-	compatible = "gumstix,omap3-overo-gallop43", "gumstix,omap3-overo", "ti,omap36xx", "ti,omap3";
+	compatible = "gumstix,omap3-overo-gallop43", "gumstix,omap3-overo", "ti,omap3630", "ti,omap36xx", "ti,omap3";
 };
 
 &omap3_pmx_core2 {
diff --git a/arch/arm/boot/dts/omap3-overo-storm-palo35.dts b/arch/arm/boot/dts/omap3-overo-storm-palo35.dts
index fb88ebc9858c..e38c1c51392c 100644
--- a/arch/arm/boot/dts/omap3-overo-storm-palo35.dts
+++ b/arch/arm/boot/dts/omap3-overo-storm-palo35.dts
@@ -14,7 +14,7 @@
 
 / {
 	model = "OMAP36xx/AM37xx/DM37xx Gumstix Overo on Palo35";
-	compatible = "gumstix,omap3-overo-palo35", "gumstix,omap3-overo", "ti,omap36xx", "ti,omap3";
+	compatible = "gumstix,omap3-overo-palo35", "gumstix,omap3-overo", "ti,omap3630", "ti,omap36xx", "ti,omap3";
 };
 
 &omap3_pmx_core2 {
diff --git a/arch/arm/boot/dts/omap3-overo-storm-palo43.dts b/arch/arm/boot/dts/omap3-overo-storm-palo43.dts
index 76cca00d97b6..e6dc23159c4d 100644
--- a/arch/arm/boot/dts/omap3-overo-storm-palo43.dts
+++ b/arch/arm/boot/dts/omap3-overo-storm-palo43.dts
@@ -14,7 +14,7 @@
 
 / {
 	model = "OMAP36xx/AM37xx/DM37xx Gumstix Overo on Palo43";
-	compatible = "gumstix,omap3-overo-palo43", "gumstix,omap3-overo", "ti,omap36xx", "ti,omap3";
+	compatible = "gumstix,omap3-overo-palo43", "gumstix,omap3-overo", "ti,omap3630", "ti,omap36xx", "ti,omap3";
 };
 
 &omap3_pmx_core2 {
diff --git a/arch/arm/boot/dts/omap3-overo-storm-summit.dts b/arch/arm/boot/dts/omap3-overo-storm-summit.dts
index cc081a9e4c1e..587c08ce282d 100644
--- a/arch/arm/boot/dts/omap3-overo-storm-summit.dts
+++ b/arch/arm/boot/dts/omap3-overo-storm-summit.dts
@@ -14,7 +14,7 @@
 
 / {
 	model = "OMAP36xx/AM37xx/DM37xx Gumstix Overo on Summit";
-	compatible = "gumstix,omap3-overo-summit", "gumstix,omap3-overo", "ti,omap36xx", "ti,omap3";
+	compatible = "gumstix,omap3-overo-summit", "gumstix,omap3-overo", "ti,omap3630", "ti,omap36xx", "ti,omap3";
 };
 
 &omap3_pmx_core2 {
diff --git a/arch/arm/boot/dts/omap3-overo-storm-tobi.dts b/arch/arm/boot/dts/omap3-overo-storm-tobi.dts
index 1de41c0826e0..f57de6010994 100644
--- a/arch/arm/boot/dts/omap3-overo-storm-tobi.dts
+++ b/arch/arm/boot/dts/omap3-overo-storm-tobi.dts
@@ -14,6 +14,6 @@
 
 / {
 	model = "OMAP36xx/AM37xx/DM37xx Gumstix Overo on Tobi";
-	compatible = "gumstix,omap3-overo-tobi", "gumstix,omap3-overo", "ti,omap36xx", "ti,omap3";
+	compatible = "gumstix,omap3-overo-tobi", "gumstix,omap3-overo", "ti,omap3630", "ti,omap36xx", "ti,omap3";
 };
 
diff --git a/arch/arm/boot/dts/omap3-overo-storm-tobiduo.dts b/arch/arm/boot/dts/omap3-overo-storm-tobiduo.dts
index 9ed13118ed8e..281af6c113be 100644
--- a/arch/arm/boot/dts/omap3-overo-storm-tobiduo.dts
+++ b/arch/arm/boot/dts/omap3-overo-storm-tobiduo.dts
@@ -14,5 +14,5 @@
 
 / {
 	model = "OMAP36xx/AM37xx/DM37xx Gumstix Overo on TobiDuo";
-	compatible = "gumstix,omap3-overo-tobiduo", "gumstix,omap3-overo", "ti,omap36xx", "ti,omap3";
+	compatible = "gumstix,omap3-overo-tobiduo", "gumstix,omap3-overo", "ti,omap3630", "ti,omap36xx", "ti,omap3";
 };
diff --git a/arch/arm/boot/dts/omap3-pandora-1ghz.dts b/arch/arm/boot/dts/omap3-pandora-1ghz.dts
index 81b957f33c9f..ea509956d7ac 100644
--- a/arch/arm/boot/dts/omap3-pandora-1ghz.dts
+++ b/arch/arm/boot/dts/omap3-pandora-1ghz.dts
@@ -16,7 +16,7 @@
 / {
 	model = "Pandora Handheld Console 1GHz";
 
-	compatible = "openpandora,omap3-pandora-1ghz", "ti,omap36xx", "ti,omap3";
+	compatible = "openpandora,omap3-pandora-1ghz", "ti,omap3630", "ti,omap36xx", "ti,omap3";
 };
 
 &omap3_pmx_core2 {
diff --git a/arch/arm/boot/dts/omap3-sbc-t3530.dts b/arch/arm/boot/dts/omap3-sbc-t3530.dts
index ae96002abb3b..24bf3fd86641 100644
--- a/arch/arm/boot/dts/omap3-sbc-t3530.dts
+++ b/arch/arm/boot/dts/omap3-sbc-t3530.dts
@@ -8,7 +8,7 @@
 
 / {
 	model = "CompuLab SBC-T3530 with CM-T3530";
-	compatible = "compulab,omap3-sbc-t3530", "compulab,omap3-cm-t3530", "ti,omap34xx", "ti,omap3";
+	compatible = "compulab,omap3-sbc-t3530", "compulab,omap3-cm-t3530", "ti,omap3430", "ti,omap34xx", "ti,omap3";
 
 	aliases {
 		display0 = &dvi0;
diff --git a/arch/arm/boot/dts/omap3-sbc-t3730.dts b/arch/arm/boot/dts/omap3-sbc-t3730.dts
index 7de6df16fc17..eb3893b9535e 100644
--- a/arch/arm/boot/dts/omap3-sbc-t3730.dts
+++ b/arch/arm/boot/dts/omap3-sbc-t3730.dts
@@ -8,7 +8,7 @@
 
 / {
 	model = "CompuLab SBC-T3730 with CM-T3730";
-	compatible = "compulab,omap3-sbc-t3730", "compulab,omap3-cm-t3730", "ti,omap36xx", "ti,omap3";
+	compatible = "compulab,omap3-sbc-t3730", "compulab,omap3-cm-t3730", "ti,omap3630", "ti,omap36xx", "ti,omap3";
 
 	aliases {
 		display0 = &dvi0;
diff --git a/arch/arm/boot/dts/omap3-sniper.dts b/arch/arm/boot/dts/omap3-sniper.dts
index 40a87330e8c3..b6879cdc5c13 100644
--- a/arch/arm/boot/dts/omap3-sniper.dts
+++ b/arch/arm/boot/dts/omap3-sniper.dts
@@ -9,7 +9,7 @@
 
 / {
 	model = "LG Optimus Black";
-	compatible = "lg,omap3-sniper", "ti,omap36xx", "ti,omap3";
+	compatible = "lg,omap3-sniper", "ti,omap3630", "ti,omap36xx", "ti,omap3";
 
 	cpus {
 		cpu@0 {
diff --git a/arch/arm/boot/dts/omap3-thunder.dts b/arch/arm/boot/dts/omap3-thunder.dts
index 6276e7079b36..64221e3b3477 100644
--- a/arch/arm/boot/dts/omap3-thunder.dts
+++ b/arch/arm/boot/dts/omap3-thunder.dts
@@ -8,7 +8,7 @@
 
 / {
 	model = "TI OMAP3 Thunder baseboard with TAO3530 SOM";
-	compatible = "technexion,omap3-thunder", "technexion,omap3-tao3530", "ti,omap34xx", "ti,omap3";
+	compatible = "technexion,omap3-thunder", "technexion,omap3-tao3530", "ti,omap3430", "ti,omap34xx", "ti,omap3";
 };
 
 &omap3_pmx_core {
diff --git a/arch/arm/boot/dts/omap3-zoom3.dts b/arch/arm/boot/dts/omap3-zoom3.dts
index db3a2fe84e99..d240e39f2151 100644
--- a/arch/arm/boot/dts/omap3-zoom3.dts
+++ b/arch/arm/boot/dts/omap3-zoom3.dts
@@ -9,7 +9,7 @@
 
 / {
 	model = "TI Zoom3";
-	compatible = "ti,omap3-zoom3", "ti,omap36xx", "ti,omap3";
+	compatible = "ti,omap3-zoom3", "ti,omap3630", "ti,omap36xx", "ti,omap3";
 
 	cpus {
 		cpu@0 {
diff --git a/arch/arm/boot/dts/omap3430-sdp.dts b/arch/arm/boot/dts/omap3430-sdp.dts
index 0abd61108a53..7bfde8aac7ae 100644
--- a/arch/arm/boot/dts/omap3430-sdp.dts
+++ b/arch/arm/boot/dts/omap3430-sdp.dts
@@ -8,7 +8,7 @@
 
 / {
 	model = "TI OMAP3430 SDP";
-	compatible = "ti,omap3430-sdp", "ti,omap3";
+	compatible = "ti,omap3430-sdp", "ti,omap3430", "ti,omap3";
 
 	memory@80000000 {
 		device_type = "memory";
-- 
2.19.1

[PATCH 4/4] DTS: bindings: omap: update bindings documentation

[H. Nikolaus Schaller]

* clarify that we now need either "ti,omap3430" or "ti,omap3630" or "ti,am3517" for omap3 chips
* clarify that "ti,omap3" has no default
* clarify that AM33x is not an "ti,omap3"
* clarify that the list of boards is incomplete
* remove some "ti,am33xx", "ti,omap3"
* add some missing "ti,omap4"

Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
---
 .../devicetree/bindings/arm/omap/omap.txt     | 30 +++++++++++--------
 1 file changed, 17 insertions(+), 13 deletions(-)

diff --git a/Documentation/devicetree/bindings/arm/omap/omap.txt b/Documentation/devicetree/bindings/arm/omap/omap.txt
index b301f753ed2c..e77635c5422c 100644
--- a/Documentation/devicetree/bindings/arm/omap/omap.txt
+++ b/Documentation/devicetree/bindings/arm/omap/omap.txt
@@ -43,7 +43,7 @@ SoC Families:
 
 - OMAP2 generic - defaults to OMAP2420
   compatible = "ti,omap2"
-- OMAP3 generic - defaults to OMAP3430
+- OMAP3 generic
   compatible = "ti,omap3"
 - OMAP4 generic - defaults to OMAP4430
   compatible = "ti,omap4"
@@ -51,6 +51,8 @@ SoC Families:
   compatible = "ti,omap5"
 - DRA7 generic - defaults to DRA742
   compatible = "ti,dra7"
+- AM33x generic
+  compatible = "ti,am33xx"
 - AM43x generic - defaults to AM4372
   compatible = "ti,am43"
 
@@ -63,12 +65,14 @@ SoCs:
 
 - OMAP3430
   compatible = "ti,omap3430", "ti,omap3"
+  legacy: "ti,omap34xx" - please do not use any more
 - AM3517
   compatible = "ti,am3517", "ti,omap3"
 - OMAP3630
-  compatible = "ti,omap36xx", "ti,omap3"
-- AM33xx
-  compatible = "ti,am33xx", "ti,omap3"
+  compatible = "ti,omap3630", "ti,omap3"
+  legacy: "ti,omap36xx" - please do not use any more
+- AM335x
+  compatible = "ti,am33xx"
 
 - OMAP4430
   compatible = "ti,omap4430", "ti,omap4"
@@ -110,19 +114,19 @@ SoCs:
 - AM4372
   compatible = "ti,am4372", "ti,am43"
 
-Boards:
+Boards (incomplete list of examples):
 
 - OMAP3 BeagleBoard : Low cost community board
-  compatible = "ti,omap3-beagle", "ti,omap3"
+  compatible = "ti,omap3-beagle", "ti,omap3430", "ti,omap3"
 
 - OMAP3 Tobi with Overo : Commercial expansion board with daughter board
-  compatible = "gumstix,omap3-overo-tobi", "gumstix,omap3-overo", "ti,omap3"
+  compatible = "gumstix,omap3-overo-tobi", "gumstix,omap3-overo", "ti,omap3430", "ti,omap3"
 
 - OMAP4 SDP : Software Development Board
-  compatible = "ti,omap4-sdp", "ti,omap4430"
+  compatible = "ti,omap4-sdp", "ti,omap4430", "ti,omap4"
 
 - OMAP4 PandaBoard : Low cost community board
-  compatible = "ti,omap4-panda", "ti,omap4430"
+  compatible = "ti,omap4-panda", "ti,omap4430", "ti,omap4"
 
 - OMAP4 DuoVero with Parlor : Commercial expansion board with daughter board
   compatible = "gumstix,omap4-duovero-parlor", "gumstix,omap4-duovero", "ti,omap4430", "ti,omap4";
@@ -134,16 +138,16 @@ Boards:
   compatible = "variscite,var-dvk-om44", "variscite,var-som-om44", "ti,omap4460", "ti,omap4";
 
 - OMAP3 EVM : Software Development Board for OMAP35x, AM/DM37x
-  compatible = "ti,omap3-evm", "ti,omap3"
+  compatible = "ti,omap3-evm", "ti,omap3630", "ti,omap3"
 
 - AM335X EVM : Software Development Board for AM335x
-  compatible = "ti,am335x-evm", "ti,am33xx", "ti,omap3"
+  compatible = "ti,am335x-evm", "ti,am33xx"
 
 - AM335X Bone : Low cost community board
-  compatible = "ti,am335x-bone", "ti,am33xx", "ti,omap3"
+  compatible = "ti,am335x-bone", "ti,am33xx"
 
 - AM3359 ICEv2 : Low cost Industrial Communication Engine EVM.
-  compatible = "ti,am3359-icev2", "ti,am33xx", "ti,omap3"
+  compatible = "ti,am3359-icev2", "ti,am33xx"
 
 - AM335X OrionLXm : Substation Automation Platform
   compatible = "novatech,am335x-lxm", "ti,am33xx"
-- 
2.19.1

Re: [PATCH 1/4] cpufreq: ti-cpufreq: add support for omap34xx and omap36xx

[H. Nikolaus Schaller]

> Am 07.09.2019 um 08:56 schrieb H. Nikolaus Schaller <hns@goldelico.com>:
> 
> This adds code and tables to read the silicon revision and
> eFuse (speed binned / 720 MHz grade) bits for selecting
> opp-v2 table entries.
> 
> Since these bits are not always part of the syscon register
> range (like for am33xx, am43, dra7), we add code to directly
> read the register values using ioremap() if syscon access fails.
> 
> The format of the opp-supported-hw entries is that it has
> two 32 bit bitfields. E.g.:
> 
> 	opp-supported-hw = <0xffffffff 3>
> 
> The first value is matched against the bit position of the
> silicon revision which is (see TRM)
> 
> omap34xx:
> BIT(0)	ES1.0
> BIT(1)	ES2.0
> BIT(2)	ES2.1
> BIT(3)	ES3.0
> BIT(4)	ES3.1
> BIT(7)	ES3.1.2
> 
> omap36xx:
> BIT(0)	ES1.0
> BIT(1)	ES1.1
> BIT(2)	ES1.2
> 
> The second value is matched against the speed grade eFuse:
> 
> BIT(0)	no high speed OPP
> BIT(1)	high speed OPP
> 
> This means for the example above that it is always enabled
> while e.g.
> 
> 	opp-supported-hw = <0x1 2>
> 
> enables the OPP only for ES1.0 BIT(0) and if the high speed
> eFuse is set BIT(1).
> 
> Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
> ---
> drivers/cpufreq/ti-cpufreq.c | 91 +++++++++++++++++++++++++++++++++++-
> 1 file changed, 89 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/cpufreq/ti-cpufreq.c b/drivers/cpufreq/ti-cpufreq.c
> index 2ad1ae17932d..f2f58d689320 100644
> --- a/drivers/cpufreq/ti-cpufreq.c
> +++ b/drivers/cpufreq/ti-cpufreq.c
> @@ -31,6 +31,11 @@
> #define DRA7_EFUSE_OD_MPU_OPP			BIT(1)
> #define DRA7_EFUSE_HIGH_MPU_OPP			BIT(2)
> 
> +#define OMAP3_CONTROL_DEVICE_STATUS		0x4800244C
> +#define OMAP3_CONTROL_IDCODE			0x4830A204
> +#define OMAP34xx_ProdID_SKUID			0x4830A20C
> +#define OMAP3_SYSCON_BASE	(0x48000000 + 0x2000 + 0x270)
> +
> #define VERSION_COUNT				2
> 
> struct ti_cpufreq_data;
> @@ -84,6 +89,13 @@ static unsigned long dra7_efuse_xlate(struct ti_cpufreq_data *opp_data,
> 	return calculated_efuse;
> }
> 
> +static unsigned long omap3_efuse_xlate(struct ti_cpufreq_data *opp_data,
> +				      unsigned long efuse)
> +{
> +	/* OPP enable bit ("Speed Binned") */
> +	return BIT(efuse);
> +}
> +
> static struct ti_cpufreq_soc_data am3x_soc_data = {
> 	.efuse_xlate = amx3_efuse_xlate,
> 	.efuse_fallback = AM33XX_800M_ARM_MPU_MAX_FREQ,
> @@ -111,6 +123,56 @@ static struct ti_cpufreq_soc_data dra7_soc_data = {
> 	.multi_regulator = true,
> };
> 
> +/*
> + * OMAP35x TRM (SPRUF98K):
> + *  CONTROL_IDCODE (0x4830 A204) describes Silicon revisions.
> + *  Control OMAP Status Register 15:0 (Address 0x4800 244C)
> + *    to separate between omap3503, omap3515, omap3525, omap3530
> + *    and feature presence.
> + *    There are encodings for versions limited to 400/266MHz
> + *    but we ignore.
> + *    Not clear if this also holds for omap34xx.
> + *  some eFuse values e.g. CONTROL_FUSE_OPP1_VDD1
> + *    are stored in the SYSCON register range
> + *  Register 0x4830A20C [ProdID.SKUID] [0:3]
> + *    0x0 for normal 600/430MHz device.
> + *    0x8 for 720/520MHz device.
> + *    Not clear what omap34xx value is.
> + */
> +
> +static struct ti_cpufreq_soc_data omap34xx_soc_data = {
> +	.efuse_xlate = omap3_efuse_xlate,
> +	.efuse_offset = OMAP34xx_ProdID_SKUID - OMAP3_SYSCON_BASE,
> +	.efuse_shift = 3,
> +	.efuse_mask = BIT(3),
> +	.rev_offset = OMAP3_CONTROL_IDCODE - OMAP3_SYSCON_BASE,
> +	.multi_regulator = false,
> +};
> +
> +/*
> + * AM/DM37x TRM (SPRUGN4M)
> + *  CONTROL_IDCODE (0x4830 A204) describes Silicon revisions.
> + *  Control Device Status Register 15:0 (Address 0x4800 244C)
> + *    to separate between am3703, am3715, dm3725, dm3730
> + *    and feature presence.
> + *   Speed Binned = Bit 9
> + *     0 800/600 MHz
> + *     1 1000/800 MHz
> + *  some eFuse values e.g. CONTROL_FUSE_OPP 1G_VDD1
> + *    are stored in the SYSCON register range.
> + *  There is no 0x4830A20C [ProdID.SKUID] register (exists but
> + *    seems to always read as 0).
> + */
> +
> +static struct ti_cpufreq_soc_data omap36xx_soc_data = {
> +	.efuse_xlate = omap3_efuse_xlate,
> +	.efuse_offset = OMAP3_CONTROL_DEVICE_STATUS - OMAP3_SYSCON_BASE,
> +	.efuse_shift = 9,
> +	.efuse_mask = BIT(9),
> +	.rev_offset = OMAP3_CONTROL_IDCODE - OMAP3_SYSCON_BASE,
> +	.multi_regulator = false,
> +};
> +
> /**
>  * ti_cpufreq_get_efuse() - Parse and return efuse value present on SoC
>  * @opp_data: pointer to ti_cpufreq_data context
> @@ -127,7 +189,17 @@ static int ti_cpufreq_get_efuse(struct ti_cpufreq_data *opp_data,
> 
> 	ret = regmap_read(opp_data->syscon, opp_data->soc_data->efuse_offset,
> 			  &efuse);
> -	if (ret) {
> +	if (ret == -EIO) {
> +		/* not a syscon register! */
> +		void __iomem *regs = ioremap(OMAP3_SYSCON_BASE +
> +				opp_data->soc_data->efuse_offset, 4);
> +
> +		if (!regs)
> +			return -ENOMEM;
> +		efuse = readl(regs);
> +		iounmap(regs);
> +		}
> +	else if (ret) {
> 		dev_err(dev,
> 			"Failed to read the efuse value from syscon: %d\n",
> 			ret);
> @@ -158,7 +230,17 @@ static int ti_cpufreq_get_rev(struct ti_cpufreq_data *opp_data,
> 
> 	ret = regmap_read(opp_data->syscon, opp_data->soc_data->rev_offset,
> 			  &revision);
> -	if (ret) {
> +	if (ret == -EIO) {
> +		/* not a syscon register! */
> +		void __iomem *regs = ioremap(OMAP3_SYSCON_BASE +
> +				opp_data->soc_data->rev_offset, 4);
> +
> +		if (!regs)
> +			return -ENOMEM;
> +		revision = readl(regs);
> +		iounmap(regs);
> +		}
> +	else if (ret) {
> 		dev_err(dev,
> 			"Failed to read the revision number from syscon: %d\n",
> 			ret);
> @@ -190,6 +272,11 @@ static const struct of_device_id ti_cpufreq_of_match[] = {
> 	{ .compatible = "ti,am33xx", .data = &am3x_soc_data, },
> 	{ .compatible = "ti,am43", .data = &am4x_soc_data, },
> 	{ .compatible = "ti,dra7", .data = &dra7_soc_data },
> +	{ .compatible = "ti,omap34xx", .data = &omap34xx_soc_data, },
> +	{ .compatible = "ti,omap36xx", .data = &omap36xx_soc_data, },
> +	/* legacy */
> +	{ .compatible = "ti,omap3430", .data = &omap34xx_soc_data, },
> +	{ .compatible = "ti,omap3630", .data = &omap36xx_soc_data, },

Well, I just realized that with the latest DTS changes,

ti,omap34xx and ti,omap36xx are legacy and
ti,omap3430 and ti,omap3630 are now official.

> 	{},
> };
> 
> -- 
> 2.19.1
> 

Re: [PATCH 1/4] cpufreq: ti-cpufreq: add support for omap34xx and omap36xx

[Tony Lindgren]

* H. Nikolaus Schaller <hns@goldelico.com> [190907 07:38]:
> > Am 07.09.2019 um 08:56 schrieb H. Nikolaus Schaller <hns@goldelico.com>:
> > @@ -190,6 +272,11 @@ static const struct of_device_id ti_cpufreq_of_match[] = {
> > 	{ .compatible = "ti,am33xx", .data = &am3x_soc_data, },
> > 	{ .compatible = "ti,am43", .data = &am4x_soc_data, },
> > 	{ .compatible = "ti,dra7", .data = &dra7_soc_data },
> > +	{ .compatible = "ti,omap34xx", .data = &omap34xx_soc_data, },
> > +	{ .compatible = "ti,omap36xx", .data = &omap36xx_soc_data, },
> > +	/* legacy */
> > +	{ .compatible = "ti,omap3430", .data = &omap34xx_soc_data, },
> > +	{ .compatible = "ti,omap3630", .data = &omap36xx_soc_data, },
> 
> Well, I just realized that with the latest DTS changes,
> 
> ti,omap34xx and ti,omap36xx are legacy and
> ti,omap3430 and ti,omap3630 are now official.

Heh :) Anyways, with that changed, this looks good to me:

Reviewed-by: Tony Lindgren <tony@atomide.com>

Re: [PATCH 2/4] ARM: dts: replace opp-v1 tables by opp-v2 for omap34xx and omap36xx

[Tony Lindgren]

* H. Nikolaus Schaller <hns@goldelico.com> [190907 06:57]:
> In addition, move omap3 from whitelist to blacklist in cpufreq-dt-platdev
> in the same patch, because doing either first breaks operation and
> may make trouble in bisect.
> 
> We also can remove opp-v1 table for omap3-n950-n9 since it is now
> automatically detected.
> 
> We also fix a wrong OPP4 voltage for omap3430 which must be
> 0.6V + 54*12.5mV = 1275mV. Otherwise the twl4030 driver will reject
> this OPP.
> 
> Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>

Acked-by: Tony Lindgren <tony@atomide.com>

Re: [PATCH 3/4] ARM: dts: omap3: bulk convert compatible to be explicitly ti,omap3430 or ti,omap3630 or ti,am3517

[Tony Lindgren]

* H. Nikolaus Schaller <hns@goldelico.com> [190907 06:57]:
> For the ti-cpufreq driver we need a clear separation between omap34 and omap36 families
> since they have different silicon revisions and efuses.
> 
> So far ti,omap3630/ti,omap36xx is just an additional flag to ti,omap3 while omap34 has no
> required entry.
> 
> Therefore we can not match omap34 boards properly.
> 
> This needs to add ti,omap3430 and ti,omap3630 where it is missing.
> 
> We also clean up some instances of missing ti,am3517 so that we can rely on
> seeing either one of:
> 
> ti,am3517
> ti,omap3430
> ti,omap3630
> 
> in addition to ti,omap3.
> 
> We leave ti,omap34xx and ti,omap36xx untouched for compatibility.

Thanks for doing this:

Acked-by: Tony Lindgren <tony@atomide.com>

Re: [PATCH 4/4] DTS: bindings: omap: update bindings documentation

[Tony Lindgren]

* H. Nikolaus Schaller <hns@goldelico.com> [190907 06:57]:
> * clarify that we now need either "ti,omap3430" or "ti,omap3630" or "ti,am3517" for omap3 chips
> * clarify that "ti,omap3" has no default
> * clarify that AM33x is not an "ti,omap3"
> * clarify that the list of boards is incomplete
> * remove some "ti,am33xx", "ti,omap3"
> * add some missing "ti,omap4"

Acked-by: Tony Lindgren <tony@atomide.com>

[PATCH 1/4] cpufreq: ti-cpufreq: add support for omap34xx and omap36xx

[H. Nikolaus Schaller]

This adds code and tables to read the silicon revision and
eFuse (speed binned / 720 MHz grade) bits for selecting
opp-v2 table entries.

Since these bits are not always part of the syscon register
range (like for am33xx, am43, dra7), we add code to directly
read the register values using ioremap() if syscon access fails.

The format of the opp-supported-hw entries is that it has
two 32 bit bitfields. E.g.:

	opp-supported-hw = <0xffffffff 3>

The first value is matched against the bit position of the
silicon revision which is (see TRM)

omap34xx:
BIT(0)	ES1.0
BIT(1)	ES2.0
BIT(2)	ES2.1
BIT(3)	ES3.0
BIT(4)	ES3.1
BIT(7)	ES3.1.2

omap36xx:
BIT(0)	ES1.0
BIT(1)	ES1.1
BIT(2)	ES1.2

The second value is matched against the speed grade eFuse:

BIT(0)	no high speed OPP
BIT(1)	high speed OPP

This means for the example above that it is always enabled
while e.g.

	opp-supported-hw = <0x1 2>

enables the OPP only for ES1.0 BIT(0) and if the high speed
eFuse is set BIT(1).

Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Reviewed-by: Tony Lindgren <tony@atomide.com>
---
 drivers/cpufreq/ti-cpufreq.c | 91 +++++++++++++++++++++++++++++++++++-
 1 file changed, 89 insertions(+), 2 deletions(-)

diff --git a/drivers/cpufreq/ti-cpufreq.c b/drivers/cpufreq/ti-cpufreq.c
index 2ad1ae17932d..f2f58d689320 100644
--- a/drivers/cpufreq/ti-cpufreq.c
+++ b/drivers/cpufreq/ti-cpufreq.c
@@ -31,6 +31,11 @@
 #define DRA7_EFUSE_OD_MPU_OPP			BIT(1)
 #define DRA7_EFUSE_HIGH_MPU_OPP			BIT(2)
 
+#define OMAP3_CONTROL_DEVICE_STATUS		0x4800244C
+#define OMAP3_CONTROL_IDCODE			0x4830A204
+#define OMAP34xx_ProdID_SKUID			0x4830A20C
+#define OMAP3_SYSCON_BASE	(0x48000000 + 0x2000 + 0x270)
+
 #define VERSION_COUNT				2
 
 struct ti_cpufreq_data;
@@ -84,6 +89,13 @@ static unsigned long dra7_efuse_xlate(struct ti_cpufreq_data *opp_data,
 	return calculated_efuse;
 }
 
+static unsigned long omap3_efuse_xlate(struct ti_cpufreq_data *opp_data,
+				      unsigned long efuse)
+{
+	/* OPP enable bit ("Speed Binned") */
+	return BIT(efuse);
+}
+
 static struct ti_cpufreq_soc_data am3x_soc_data = {
 	.efuse_xlate = amx3_efuse_xlate,
 	.efuse_fallback = AM33XX_800M_ARM_MPU_MAX_FREQ,
@@ -111,6 +123,56 @@ static struct ti_cpufreq_soc_data dra7_soc_data = {
 	.multi_regulator = true,
 };
 
+/*
+ * OMAP35x TRM (SPRUF98K):
+ *  CONTROL_IDCODE (0x4830 A204) describes Silicon revisions.
+ *  Control OMAP Status Register 15:0 (Address 0x4800 244C)
+ *    to separate between omap3503, omap3515, omap3525, omap3530
+ *    and feature presence.
+ *    There are encodings for versions limited to 400/266MHz
+ *    but we ignore.
+ *    Not clear if this also holds for omap34xx.
+ *  some eFuse values e.g. CONTROL_FUSE_OPP1_VDD1
+ *    are stored in the SYSCON register range
+ *  Register 0x4830A20C [ProdID.SKUID] [0:3]
+ *    0x0 for normal 600/430MHz device.
+ *    0x8 for 720/520MHz device.
+ *    Not clear what omap34xx value is.
+ */
+
+static struct ti_cpufreq_soc_data omap34xx_soc_data = {
+	.efuse_xlate = omap3_efuse_xlate,
+	.efuse_offset = OMAP34xx_ProdID_SKUID - OMAP3_SYSCON_BASE,
+	.efuse_shift = 3,
+	.efuse_mask = BIT(3),
+	.rev_offset = OMAP3_CONTROL_IDCODE - OMAP3_SYSCON_BASE,
+	.multi_regulator = false,
+};
+
+/*
+ * AM/DM37x TRM (SPRUGN4M)
+ *  CONTROL_IDCODE (0x4830 A204) describes Silicon revisions.
+ *  Control Device Status Register 15:0 (Address 0x4800 244C)
+ *    to separate between am3703, am3715, dm3725, dm3730
+ *    and feature presence.
+ *   Speed Binned = Bit 9
+ *     0 800/600 MHz
+ *     1 1000/800 MHz
+ *  some eFuse values e.g. CONTROL_FUSE_OPP 1G_VDD1
+ *    are stored in the SYSCON register range.
+ *  There is no 0x4830A20C [ProdID.SKUID] register (exists but
+ *    seems to always read as 0).
+ */
+
+static struct ti_cpufreq_soc_data omap36xx_soc_data = {
+	.efuse_xlate = omap3_efuse_xlate,
+	.efuse_offset = OMAP3_CONTROL_DEVICE_STATUS - OMAP3_SYSCON_BASE,
+	.efuse_shift = 9,
+	.efuse_mask = BIT(9),
+	.rev_offset = OMAP3_CONTROL_IDCODE - OMAP3_SYSCON_BASE,
+	.multi_regulator = false,
+};
+
 /**
  * ti_cpufreq_get_efuse() - Parse and return efuse value present on SoC
  * @opp_data: pointer to ti_cpufreq_data context
@@ -127,7 +189,17 @@ static int ti_cpufreq_get_efuse(struct ti_cpufreq_data *opp_data,
 
 	ret = regmap_read(opp_data->syscon, opp_data->soc_data->efuse_offset,
 			  &efuse);
-	if (ret) {
+	if (ret == -EIO) {
+		/* not a syscon register! */
+		void __iomem *regs = ioremap(OMAP3_SYSCON_BASE +
+				opp_data->soc_data->efuse_offset, 4);
+
+		if (!regs)
+			return -ENOMEM;
+		efuse = readl(regs);
+		iounmap(regs);
+		}
+	else if (ret) {
 		dev_err(dev,
 			"Failed to read the efuse value from syscon: %d\n",
 			ret);
@@ -158,7 +230,17 @@ static int ti_cpufreq_get_rev(struct ti_cpufreq_data *opp_data,
 
 	ret = regmap_read(opp_data->syscon, opp_data->soc_data->rev_offset,
 			  &revision);
-	if (ret) {
+	if (ret == -EIO) {
+		/* not a syscon register! */
+		void __iomem *regs = ioremap(OMAP3_SYSCON_BASE +
+				opp_data->soc_data->rev_offset, 4);
+
+		if (!regs)
+			return -ENOMEM;
+		revision = readl(regs);
+		iounmap(regs);
+		}
+	else if (ret) {
 		dev_err(dev,
 			"Failed to read the revision number from syscon: %d\n",
 			ret);
@@ -190,6 +272,11 @@ static const struct of_device_id ti_cpufreq_of_match[] = {
 	{ .compatible = "ti,am33xx", .data = &am3x_soc_data, },
 	{ .compatible = "ti,am43", .data = &am4x_soc_data, },
 	{ .compatible = "ti,dra7", .data = &dra7_soc_data },
+	{ .compatible = "ti,omap34xx", .data = &omap34xx_soc_data, },
+	{ .compatible = "ti,omap36xx", .data = &omap36xx_soc_data, },
+	/* legacy */
+	{ .compatible = "ti,omap3430", .data = &omap34xx_soc_data, },
+	{ .compatible = "ti,omap3630", .data = &omap36xx_soc_data, },
 	{},
 };
 
-- 
2.19.1