ARM: dts: Configure system timers for omap2

We can now init system timers using the dmtimer and 32k counter
based on only devicetree data and drivers/clocksource timers.
Let's configure the clocksource and clockevent, and drop the old
unused platform data.

As we're just dropping platform data, and the early platform data
init is based on the custom ti,hwmods property, we want to drop
both the platform data and ti,hwmods property in a single patch.

Since the dmtimer can use both 32k clock and system clock as the
source, let's also configure the SoC specific default values. The
board specific dts files can reconfigure these with assigned-clocks
and assigned-clock-parents as needed.

Let's also update the dts file to use #include while at it.

Cc: devicetree@vger.kernel.org
Cc: Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: Grygorii Strashko <grygorii.strashko@ti.com>
Cc: Keerthy <j-keerthy@ti.com>
Cc: Lokesh Vutla <lokeshvutla@ti.com>
Cc: Rob Herring <robh@kernel.org>
Cc: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

9 files changed, 140 insertions, 128 deletions

diff --git a/arch/arm/boot/dts/omap2.dtsi b/arch/arm/boot/dts/omap2.dtsi
index 0e453fec2e3a..8a5cb44bfe2f 100644
--- a/arch/arm/boot/dts/omap2.dtsi
+++ b/arch/arm/boot/dts/omap2.dtsi
@@ -201,11 +201,32 @@
 			clock-frequency = <48000000>;
 		};
 
-		timer2: timer@4802a000 {
-			compatible = "ti,omap2420-timer";
-			reg = <0x4802a000 0x400>;
-			interrupts = <38>;
-			ti,hwmods = "timer2";
+		timer2_target: target-module@4802a000 {
+			compatible = "ti,sysc-omap2-timer", "ti,sysc";
+			reg = <0x4802a000 0x4>,
+			      <0x4802a010 0x4>,
+			      <0x4802a014 0x4>;
+			reg-names = "rev", "sysc", "syss";
+			ti,sysc-mask = <(SYSC_OMAP2_CLOCKACTIVITY |
+					 SYSC_OMAP2_EMUFREE |
+					 SYSC_OMAP2_ENAWAKEUP |
+					 SYSC_OMAP2_SOFTRESET |
+					 SYSC_OMAP2_AUTOIDLE)>;
+			ti,sysc-sidle = <SYSC_IDLE_FORCE>,
+					<SYSC_IDLE_NO>,
+					<SYSC_IDLE_SMART>;
+			ti,syss-mask = <1>;
+			clocks = <&gpt2_fck>, <&gpt2_ick>;
+			clock-names = "fck", "ick";
+			#address-cells = <1>;
+			#size-cells = <1>;
+			ranges = <0x0 0x4802a000 0x1000>;
+
+			timer2: timer@0 {
+				compatible = "ti,omap2420-timer";
+				reg = <0 0x400>;
+				interrupts = <38>;
+			};
 		};
 
 		timer3: timer@48078000 {
diff --git a/arch/arm/boot/dts/omap2420.dtsi b/arch/arm/boot/dts/omap2420.dtsi
index aba542d63d6d..6c5c7c0e8b94 100644
--- a/arch/arm/boot/dts/omap2420.dtsi
+++ b/arch/arm/boot/dts/omap2420.dtsi
@@ -68,10 +68,23 @@
 				};
 			};
 
-			counter32k: counter@4000 {
-				compatible = "ti,omap-counter32k";
-				reg = <0x4000 0x20>;
-				ti,hwmods = "counter_32k";
+			target-module@4000 {
+				compatible = "ti,sysc-omap2", "ti,sysc";
+				reg = <0x4000 0x4>,
+				      <0x4004 0x4>;
+				reg-names = "rev", "sysc";
+				ti,sysc-sidle = <SYSC_IDLE_FORCE>,
+						<SYSC_IDLE_NO>;
+				clocks = <&func_32k_ck>;
+				clock-names = "fck";
+				#address-cells = <1>;
+				#size-cells = <1>;
+				ranges = <0x0 0x4000 0x1000>;
+
+				counter32k: counter@0 {
+					compatible = "ti,omap-counter32k";
+					reg = <0 0x20>;
+				};
 			};
 		};
 
@@ -194,12 +207,33 @@
 			};
 		};
 
-		timer1: timer@48028000 {
-			compatible = "ti,omap2420-timer";
-			reg = <0x48028000 0x400>;
-			interrupts = <37>;
-			ti,hwmods = "timer1";
-			ti,timer-alwon;
+		timer1_target: target-module@48028000 {
+			compatible = "ti,sysc-omap2-timer", "ti,sysc";
+			reg = <0x48028000 0x4>,
+			      <0x48028010 0x4>,
+			      <0x48028014 0x4>;
+			reg-names = "rev", "sysc", "syss";
+			ti,sysc-mask = <(SYSC_OMAP2_CLOCKACTIVITY |
+					 SYSC_OMAP2_EMUFREE |
+					 SYSC_OMAP2_ENAWAKEUP |
+					 SYSC_OMAP2_SOFTRESET |
+					 SYSC_OMAP2_AUTOIDLE)>;
+			ti,sysc-sidle = <SYSC_IDLE_FORCE>,
+					<SYSC_IDLE_NO>,
+					<SYSC_IDLE_SMART>;
+			ti,syss-mask = <1>;
+			clocks = <&gpt1_fck>, <&gpt1_ick>;
+			clock-names = "fck", "ick";
+			#address-cells = <1>;
+			#size-cells = <1>;
+			ranges = <0x0 0x48028000 0x1000>;
+
+			timer1: timer@0 {
+				compatible = "ti,omap2420-timer";
+				reg = <0 0x400>;
+				interrupts = <37>;
+				ti,timer-alwon;
+			};
 		};
 
 		wd_timer2: wdt@48022000 {
@@ -218,5 +252,15 @@
 	compatible = "ti,omap2420-i2c";
 };
 
-/include/ "omap24xx-clocks.dtsi"
-/include/ "omap2420-clocks.dtsi"
+#include "omap24xx-clocks.dtsi"
+#include "omap2420-clocks.dtsi"
+
+/* Preferred always-on timer for clockevent */
+&timer1_target {
+	ti,no-reset-on-init;
+	ti,no-idle;
+	timer@0 {
+		assigned-clocks = <&gpt1_fck>;
+		assigned-clock-parents = <&func_32k_ck>;
+	};
+};
diff --git a/arch/arm/boot/dts/omap2430.dtsi b/arch/arm/boot/dts/omap2430.dtsi
index 15ef7593be12..6a1f5bb3c06a 100644
--- a/arch/arm/boot/dts/omap2430.dtsi
+++ b/arch/arm/boot/dts/omap2430.dtsi
@@ -81,10 +81,23 @@
 				};
 			};
 
-			counter32k: counter@20000 {
-				compatible = "ti,omap-counter32k";
-				reg = <0x20000 0x20>;
-				ti,hwmods = "counter_32k";
+			target-module@20000 {
+				compatible = "ti,sysc-omap2", "ti,sysc";
+				reg = <0x20000 0x4>,
+				      <0x20004 0x4>;
+				reg-names = "rev", "sysc";
+				ti,sysc-sidle = <SYSC_IDLE_FORCE>,
+						<SYSC_IDLE_NO>;
+				clocks = <&func_32k_ck>;
+				clock-names = "fck";
+				#address-cells = <1>;
+				#size-cells = <1>;
+				ranges = <0x0 0x20000 0x1000>;
+
+				counter32k: counter@0 {
+					compatible = "ti,omap-counter32k";
+					reg = <0 0x20>;
+				};
 			};
 		};
 
@@ -277,12 +290,33 @@
 			};
 		};
 
-		timer1: timer@49018000 {
-			compatible = "ti,omap2420-timer";
-			reg = <0x49018000 0x400>;
-			interrupts = <37>;
-			ti,hwmods = "timer1";
-			ti,timer-alwon;
+		timer1_target: target-module@49018000 {
+			compatible = "ti,sysc-omap2-timer", "ti,sysc";
+			reg = <0x49018000 0x4>,
+			      <0x49018010 0x4>,
+			      <0x49018014 0x4>;
+			reg-names = "rev", "sysc", "syss";
+			ti,sysc-mask = <(SYSC_OMAP2_CLOCKACTIVITY |
+					 SYSC_OMAP2_EMUFREE |
+					 SYSC_OMAP2_ENAWAKEUP |
+					 SYSC_OMAP2_SOFTRESET |
+					 SYSC_OMAP2_AUTOIDLE)>;
+			ti,sysc-sidle = <SYSC_IDLE_FORCE>,
+					<SYSC_IDLE_NO>,
+					<SYSC_IDLE_SMART>;
+			ti,syss-mask = <1>;
+			clocks = <&gpt1_fck>, <&gpt1_ick>;
+			clock-names = "fck", "ick";
+			#address-cells = <1>;
+			#size-cells = <1>;
+			ranges = <0x0 0x49018000 0x1000>;
+
+			timer1: timer@0 {
+				compatible = "ti,omap2420-timer";
+				reg = <0 0x400>;
+				interrupts = <37>;
+				ti,timer-alwon;
+			};
 		};
 
 		mcspi3: spi@480b8000 {
@@ -321,5 +355,15 @@
 	compatible = "ti,omap2430-i2c";
 };
 
-/include/ "omap24xx-clocks.dtsi"
-/include/ "omap2430-clocks.dtsi"
+#include "omap24xx-clocks.dtsi"
+#include "omap2430-clocks.dtsi"
+
+/* Preferred always-on timer for clockevent */
+&timer1_target {
+	ti,no-reset-on-init;
+	ti,no-idle;
+	timer@0 {
+		assigned-clocks = <&gpt1_fck>;
+		assigned-clock-parents = <&func_32k_ck>;
+	};
+};
diff --git a/arch/arm/mach-omap2/board-generic.c b/arch/arm/mach-omap2/board-generic.c
index eeb3f97af520..cafeb822bab7 100644
--- a/arch/arm/mach-omap2/board-generic.c
+++ b/arch/arm/mach-omap2/board-generic.c
@@ -50,7 +50,7 @@ DT_MACHINE_START(OMAP242X_DT, "Generic OMAP2420 (Flattened Device Tree)")
 	.map_io		= omap242x_map_io,
 	.init_early	= omap2420_init_early,
 	.init_machine	= omap_generic_init,
-	.init_time	= omap_init_time,
+	.init_time	= omap_init_time_of,
 	.dt_compat	= omap242x_boards_compat,
 	.restart	= omap2xxx_restart,
 MACHINE_END
@@ -67,7 +67,7 @@ DT_MACHINE_START(OMAP243X_DT, "Generic OMAP2430 (Flattened Device Tree)")
 	.map_io		= omap243x_map_io,
 	.init_early	= omap2430_init_early,
 	.init_machine	= omap_generic_init,
-	.init_time	= omap_init_time,
+	.init_time	= omap_init_time_of,
 	.dt_compat	= omap243x_boards_compat,
 	.restart	= omap2xxx_restart,
 MACHINE_END
diff --git a/arch/arm/mach-omap2/omap_hwmod_2420_data.c b/arch/arm/mach-omap2/omap_hwmod_2420_data.c
index b14442cf6179..558fae4375ba 100644
--- a/arch/arm/mach-omap2/omap_hwmod_2420_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_2420_data.c
@@ -264,14 +264,6 @@ static struct omap_hwmod_ocp_if omap2420_l3__dsp = {
 	.user		= OCP_USER_MPU | OCP_USER_SDMA,
 };
 
-/* l4_wkup -> timer1 */
-static struct omap_hwmod_ocp_if omap2420_l4_wkup__timer1 = {
-	.master		= &omap2xxx_l4_wkup_hwmod,
-	.slave		= &omap2xxx_timer1_hwmod,
-	.clk		= "gpt1_ick",
-	.user		= OCP_USER_MPU | OCP_USER_SDMA,
-};
-
 /* l4_wkup -> wd_timer2 */
 static struct omap_hwmod_ocp_if omap2420_l4_wkup__wd_timer2 = {
 	.master		= &omap2xxx_l4_wkup_hwmod,
@@ -352,15 +344,6 @@ static struct omap_hwmod_ocp_if omap2420_l4_core__hdq1w = {
 	.flags		= OMAP_FIREWALL_L4 | OCPIF_SWSUP_IDLE,
 };
 
-
-/* l4_wkup -> 32ksync_counter */
-static struct omap_hwmod_ocp_if omap2420_l4_wkup__counter_32k = {
-	.master		= &omap2xxx_l4_wkup_hwmod,
-	.slave		= &omap2xxx_counter_32k_hwmod,
-	.clk		= "sync_32k_ick",
-	.user		= OCP_USER_MPU | OCP_USER_SDMA,
-};
-
 static struct omap_hwmod_ocp_if omap2420_l3__gpmc = {
 	.master		= &omap2xxx_l3_main_hwmod,
 	.slave		= &omap2xxx_gpmc_hwmod,
@@ -382,8 +365,6 @@ static struct omap_hwmod_ocp_if *omap2420_hwmod_ocp_ifs[] __initdata = {
 	&omap2420_l4_core__i2c2,
 	&omap2420_l3__iva,
 	&omap2420_l3__dsp,
-	&omap2420_l4_wkup__timer1,
-	&omap2xxx_l4_core__timer2,
 	&omap2xxx_l4_core__timer3,
 	&omap2xxx_l4_core__timer4,
 	&omap2xxx_l4_core__timer5,
@@ -411,7 +392,6 @@ static struct omap_hwmod_ocp_if *omap2420_hwmod_ocp_ifs[] __initdata = {
 	&omap2xxx_l4_core__sham,
 	&omap2xxx_l4_core__aes,
 	&omap2420_l4_core__hdq1w,
-	&omap2420_l4_wkup__counter_32k,
 	&omap2420_l3__gpmc,
 	NULL,
 };
diff --git a/arch/arm/mach-omap2/omap_hwmod_2430_data.c b/arch/arm/mach-omap2/omap_hwmod_2430_data.c
index 41a37c74f9a6..c93200801b34 100644
--- a/arch/arm/mach-omap2/omap_hwmod_2430_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_2430_data.c
@@ -436,14 +436,6 @@ static struct omap_hwmod_ocp_if omap2430_l3__iva = {
 	.user		= OCP_USER_MPU | OCP_USER_SDMA,
 };
 
-/* l4_wkup -> timer1 */
-static struct omap_hwmod_ocp_if omap2430_l4_wkup__timer1 = {
-	.master		= &omap2xxx_l4_wkup_hwmod,
-	.slave		= &omap2xxx_timer1_hwmod,
-	.clk		= "gpt1_ick",
-	.user		= OCP_USER_MPU | OCP_USER_SDMA,
-};
-
 /* l4_wkup -> wd_timer2 */
 static struct omap_hwmod_ocp_if omap2430_l4_wkup__wd_timer2 = {
 	.master		= &omap2xxx_l4_wkup_hwmod,
@@ -548,14 +540,6 @@ static struct omap_hwmod_ocp_if omap2430_l4_core__hdq1w = {
 	.flags		= OMAP_FIREWALL_L4 | OCPIF_SWSUP_IDLE,
 };
 
-/* l4_wkup -> 32ksync_counter */
-static struct omap_hwmod_ocp_if omap2430_l4_wkup__counter_32k = {
-	.master		= &omap2xxx_l4_wkup_hwmod,
-	.slave		= &omap2xxx_counter_32k_hwmod,
-	.clk		= "sync_32k_ick",
-	.user		= OCP_USER_MPU | OCP_USER_SDMA,
-};
-
 static struct omap_hwmod_ocp_if omap2430_l3__gpmc = {
 	.master		= &omap2xxx_l3_main_hwmod,
 	.slave		= &omap2xxx_gpmc_hwmod,
@@ -581,8 +565,6 @@ static struct omap_hwmod_ocp_if *omap2430_hwmod_ocp_ifs[] __initdata = {
 	&omap2xxx_l4_core__mcspi2,
 	&omap2430_l4_core__mcspi3,
 	&omap2430_l3__iva,
-	&omap2430_l4_wkup__timer1,
-	&omap2xxx_l4_core__timer2,
 	&omap2xxx_l4_core__timer3,
 	&omap2xxx_l4_core__timer4,
 	&omap2xxx_l4_core__timer5,
@@ -613,7 +595,6 @@ static struct omap_hwmod_ocp_if *omap2430_hwmod_ocp_ifs[] __initdata = {
 	&omap2xxx_l4_core__rng,
 	&omap2xxx_l4_core__sham,
 	&omap2xxx_l4_core__aes,
-	&omap2430_l4_wkup__counter_32k,
 	&omap2430_l3__gpmc,
 	NULL,
 };
diff --git a/arch/arm/mach-omap2/omap_hwmod_2xxx_interconnect_data.c b/arch/arm/mach-omap2/omap_hwmod_2xxx_interconnect_data.c
index eef96adea411..518e877bb2a1 100644
--- a/arch/arm/mach-omap2/omap_hwmod_2xxx_interconnect_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_2xxx_interconnect_data.c
@@ -95,14 +95,6 @@ struct omap_hwmod_ocp_if omap2xxx_l4_core__mcspi2 = {
 	.user		= OCP_USER_MPU | OCP_USER_SDMA,
 };
 
-/* l4_core -> timer2 */
-struct omap_hwmod_ocp_if omap2xxx_l4_core__timer2 = {
-	.master		= &omap2xxx_l4_core_hwmod,
-	.slave		= &omap2xxx_timer2_hwmod,
-	.clk		= "gpt2_ick",
-	.user		= OCP_USER_MPU | OCP_USER_SDMA,
-};
-
 /* l4_core -> timer3 */
 struct omap_hwmod_ocp_if omap2xxx_l4_core__timer3 = {
 	.master		= &omap2xxx_l4_core_hwmod,
diff --git a/arch/arm/mach-omap2/omap_hwmod_2xxx_ipblock_data.c b/arch/arm/mach-omap2/omap_hwmod_2xxx_ipblock_data.c
index a445704d43d9..9156f2bfbc8d 100644
--- a/arch/arm/mach-omap2/omap_hwmod_2xxx_ipblock_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_2xxx_ipblock_data.c
@@ -195,36 +195,6 @@ struct omap_hwmod omap2xxx_iva_hwmod = {
 	.class		= &iva_hwmod_class,
 };
 
-/* timer1 */
-struct omap_hwmod omap2xxx_timer1_hwmod = {
-	.name		= "timer1",
-	.main_clk	= "gpt1_fck",
-	.prcm		= {
-		.omap2 = {
-			.module_offs = WKUP_MOD,
-			.idlest_reg_id = 1,
-			.idlest_idle_bit = OMAP24XX_ST_GPT1_SHIFT,
-		},
-	},
-	.class		= &omap2xxx_timer_hwmod_class,
-	.flags          = HWMOD_SET_DEFAULT_CLOCKACT,
-};
-
-/* timer2 */
-struct omap_hwmod omap2xxx_timer2_hwmod = {
-	.name		= "timer2",
-	.main_clk	= "gpt2_fck",
-	.prcm		= {
-		.omap2 = {
-			.module_offs = CORE_MOD,
-			.idlest_reg_id = 1,
-			.idlest_idle_bit = OMAP24XX_ST_GPT2_SHIFT,
-		},
-	},
-	.class		= &omap2xxx_timer_hwmod_class,
-	.flags          = HWMOD_SET_DEFAULT_CLOCKACT,
-};
-
 /* timer3 */
 struct omap_hwmod omap2xxx_timer3_hwmod = {
 	.name		= "timer3",
@@ -595,23 +565,6 @@ struct omap_hwmod omap2xxx_mcspi2_hwmod = {
 	.class		= &omap2xxx_mcspi_class,
 };
 
-static struct omap_hwmod_class omap2xxx_counter_hwmod_class = {
-	.name	= "counter",
-};
-
-struct omap_hwmod omap2xxx_counter_32k_hwmod = {
-	.name		= "counter_32k",
-	.main_clk	= "func_32k_ck",
-	.prcm		= {
-		.omap2	= {
-			.module_offs = WKUP_MOD,
-			.idlest_reg_id = 1,
-			.idlest_idle_bit = OMAP24XX_ST_32KSYNC_SHIFT,
-		},
-	},
-	.class		= &omap2xxx_counter_hwmod_class,
-};
-
 /* gpmc */
 struct omap_hwmod omap2xxx_gpmc_hwmod = {
 	.name		= "gpmc",
diff --git a/arch/arm/mach-omap2/omap_hwmod_common_data.h b/arch/arm/mach-omap2/omap_hwmod_common_data.h
index c85cb8b5831c..0045e6680a63 100644
--- a/arch/arm/mach-omap2/omap_hwmod_common_data.h
+++ b/arch/arm/mach-omap2/omap_hwmod_common_data.h
@@ -21,8 +21,6 @@ extern struct omap_hwmod omap2xxx_l4_core_hwmod;
 extern struct omap_hwmod omap2xxx_l4_wkup_hwmod;
 extern struct omap_hwmod omap2xxx_mpu_hwmod;
 extern struct omap_hwmod omap2xxx_iva_hwmod;
-extern struct omap_hwmod omap2xxx_timer1_hwmod;
-extern struct omap_hwmod omap2xxx_timer2_hwmod;
 extern struct omap_hwmod omap2xxx_timer3_hwmod;
 extern struct omap_hwmod omap2xxx_timer4_hwmod;
 extern struct omap_hwmod omap2xxx_timer5_hwmod;
@@ -47,7 +45,6 @@ extern struct omap_hwmod omap2xxx_gpio3_hwmod;
 extern struct omap_hwmod omap2xxx_gpio4_hwmod;
 extern struct omap_hwmod omap2xxx_mcspi1_hwmod;
 extern struct omap_hwmod omap2xxx_mcspi2_hwmod;
-extern struct omap_hwmod omap2xxx_counter_32k_hwmod;
 extern struct omap_hwmod omap2xxx_gpmc_hwmod;
 extern struct omap_hwmod omap2xxx_rng_hwmod;
 extern struct omap_hwmod omap2xxx_sham_hwmod;