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authorTony Lindgren <tony@atomide.com>2020-05-07 09:59:31 -0700
committerTony Lindgren <tony@atomide.com>2020-05-19 09:38:03 -0700
commit545a95582e80a2c66527dbf7f0ae495902fc083a (patch)
tree6cb4b907dcb8d66de764bc1092edebd39b62929f
parente20ef23dd6937c38df2cfddf15270668153c8177 (diff)
ARM: dts: Configure system timers for am437x
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. Cc: devicetree@vger.kernel.org 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>
-rw-r--r--arch/arm/boot/dts/am4372.dtsi20
-rw-r--r--arch/arm/boot/dts/am437x-l4.dtsi7
-rw-r--r--arch/arm/mach-omap2/board-generic.c2
-rw-r--r--arch/arm/mach-omap2/omap_hwmod_33xx_43xx_common_data.h2
-rw-r--r--arch/arm/mach-omap2/omap_hwmod_33xx_43xx_interconnect_data.c8
-rw-r--r--arch/arm/mach-omap2/omap_hwmod_33xx_43xx_ipblock_data.c60
-rw-r--r--arch/arm/mach-omap2/omap_hwmod_43xx_data.c45
7 files changed, 23 insertions, 121 deletions
diff --git a/arch/arm/boot/dts/am4372.dtsi b/arch/arm/boot/dts/am4372.dtsi
index dba87bfaf33e..b4861f70f178 100644
--- a/arch/arm/boot/dts/am4372.dtsi
+++ b/arch/arm/boot/dts/am4372.dtsi
@@ -553,3 +553,23 @@
#reset-cells = <1>;
};
};
+
+/* Preferred always-on timer for clocksource */
+&timer1_target {
+ ti,no-reset-on-init;
+ ti,no-idle;
+ timer@0 {
+ assigned-clocks = <&timer1_fck>;
+ assigned-clock-parents = <&sys_clkin_ck>;
+ };
+};
+
+/* Preferred timer for clockevent */
+&timer2_target {
+ ti,no-reset-on-init;
+ ti,no-idle;
+ timer@0 {
+ assigned-clocks = <&timer2_fck>;
+ assigned-clock-parents = <&sys_clkin_ck>;
+ };
+};
diff --git a/arch/arm/boot/dts/am437x-l4.dtsi b/arch/arm/boot/dts/am437x-l4.dtsi
index 49c6a872052e..0d0f9fe4a882 100644
--- a/arch/arm/boot/dts/am437x-l4.dtsi
+++ b/arch/arm/boot/dts/am437x-l4.dtsi
@@ -328,9 +328,8 @@
};
};
- target-module@31000 { /* 0x44e31000, ap 24 40.0 */
+ timer1_target: target-module@31000 { /* 0x44e31000, ap 24 40.0 */
compatible = "ti,sysc-omap2-timer", "ti,sysc";
- ti,hwmods = "timer1";
reg = <0x31000 0x4>,
<0x31010 0x4>,
<0x31014 0x4>;
@@ -450,7 +449,6 @@
target-module@86000 { /* 0x44e86000, ap 40 70.0 */
compatible = "ti,sysc-omap2", "ti,sysc";
- ti,hwmods = "counter_32k";
reg = <0x86000 0x4>,
<0x86004 0x4>;
reg-names = "rev", "sysc";
@@ -868,9 +866,8 @@
};
};
- target-module@40000 { /* 0x48040000, ap 18 1e.0 */
+ timer2_target: target-module@40000 { /* 0x48040000, ap 18 1e.0 */
compatible = "ti,sysc-omap4-timer", "ti,sysc";
- ti,hwmods = "timer2";
reg = <0x40000 0x4>,
<0x40010 0x4>,
<0x40014 0x4>;
diff --git a/arch/arm/mach-omap2/board-generic.c b/arch/arm/mach-omap2/board-generic.c
index cce9523eaa77..fa299e09730d 100644
--- a/arch/arm/mach-omap2/board-generic.c
+++ b/arch/arm/mach-omap2/board-generic.c
@@ -308,7 +308,7 @@ DT_MACHINE_START(AM43_DT, "Generic AM43 (Flattened Device Tree)")
.init_late = am43xx_init_late,
.init_irq = omap_gic_of_init,
.init_machine = omap_generic_init,
- .init_time = omap3_gptimer_timer_init,
+ .init_time = omap_init_time_of,
.dt_compat = am43_boards_compat,
.restart = omap44xx_restart,
MACHINE_END
diff --git a/arch/arm/mach-omap2/omap_hwmod_33xx_43xx_common_data.h b/arch/arm/mach-omap2/omap_hwmod_33xx_43xx_common_data.h
index fa2ff41f84b9..5f4ab24dd60d 100644
--- a/arch/arm/mach-omap2/omap_hwmod_33xx_43xx_common_data.h
+++ b/arch/arm/mach-omap2/omap_hwmod_33xx_43xx_common_data.h
@@ -44,8 +44,6 @@ extern struct omap_hwmod am33xx_smartreflex0_hwmod;
extern struct omap_hwmod am33xx_smartreflex1_hwmod;
extern struct omap_hwmod am33xx_gpmc_hwmod;
extern struct omap_hwmod am33xx_rtc_hwmod;
-extern struct omap_hwmod am33xx_timer1_hwmod;
-extern struct omap_hwmod am33xx_timer2_hwmod;
extern struct omap_hwmod_class am33xx_emif_hwmod_class;
extern struct omap_hwmod_class am33xx_l4_hwmod_class;
diff --git a/arch/arm/mach-omap2/omap_hwmod_33xx_43xx_interconnect_data.c b/arch/arm/mach-omap2/omap_hwmod_33xx_43xx_interconnect_data.c
index 0ebbfbb4fb1c..b389d6589c32 100644
--- a/arch/arm/mach-omap2/omap_hwmod_33xx_43xx_interconnect_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_33xx_43xx_interconnect_data.c
@@ -106,14 +106,6 @@ struct omap_hwmod_ocp_if am33xx_l3_s__gpmc = {
.user = OCP_USER_MPU,
};
-/* l4 per -> timer2 */
-struct omap_hwmod_ocp_if am33xx_l4_ls__timer2 = {
- .master = &am33xx_l4_ls_hwmod,
- .slave = &am33xx_timer2_hwmod,
- .clk = "l4ls_gclk",
- .user = OCP_USER_MPU,
-};
-
/* l3 main -> ocmc */
struct omap_hwmod_ocp_if am33xx_l3_main__ocmc = {
.master = &am33xx_l3_main_hwmod,
diff --git a/arch/arm/mach-omap2/omap_hwmod_33xx_43xx_ipblock_data.c b/arch/arm/mach-omap2/omap_hwmod_33xx_43xx_ipblock_data.c
index 99c633338488..4b3cd590fb52 100644
--- a/arch/arm/mach-omap2/omap_hwmod_33xx_43xx_ipblock_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_33xx_43xx_ipblock_data.c
@@ -307,64 +307,6 @@ struct omap_hwmod am33xx_rtc_hwmod = {
},
};
-/* 'timer 2-7' class */
-static struct omap_hwmod_class_sysconfig am33xx_timer_sysc = {
- .rev_offs = 0x0000,
- .sysc_offs = 0x0010,
- .syss_offs = 0x0014,
- .sysc_flags = SYSC_HAS_SIDLEMODE | SYSC_HAS_SOFTRESET |
- SYSC_HAS_RESET_STATUS,
- .idlemodes = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART |
- SIDLE_SMART_WKUP),
- .sysc_fields = &omap_hwmod_sysc_type2,
-};
-
-struct omap_hwmod_class am33xx_timer_hwmod_class = {
- .name = "timer",
- .sysc = &am33xx_timer_sysc,
-};
-
-/* timer1 1ms */
-static struct omap_hwmod_class_sysconfig am33xx_timer1ms_sysc = {
- .rev_offs = 0x0000,
- .sysc_offs = 0x0010,
- .syss_offs = 0x0014,
- .sysc_flags = (SYSC_HAS_CLOCKACTIVITY | SYSC_HAS_SIDLEMODE |
- SYSC_HAS_SOFTRESET | SYSC_HAS_AUTOIDLE |
- SYSS_HAS_RESET_STATUS),
- .idlemodes = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART),
- .sysc_fields = &omap_hwmod_sysc_type1,
-};
-
-static struct omap_hwmod_class am33xx_timer1ms_hwmod_class = {
- .name = "timer",
- .sysc = &am33xx_timer1ms_sysc,
-};
-
-struct omap_hwmod am33xx_timer1_hwmod = {
- .name = "timer1",
- .class = &am33xx_timer1ms_hwmod_class,
- .clkdm_name = "l4_wkup_clkdm",
- .main_clk = "timer1_fck",
- .prcm = {
- .omap4 = {
- .modulemode = MODULEMODE_SWCTRL,
- },
- },
-};
-
-struct omap_hwmod am33xx_timer2_hwmod = {
- .name = "timer2",
- .class = &am33xx_timer_hwmod_class,
- .clkdm_name = "l4ls_clkdm",
- .main_clk = "timer2_fck",
- .prcm = {
- .omap4 = {
- .modulemode = MODULEMODE_SWCTRL,
- },
- },
-};
-
static void omap_hwmod_am33xx_clkctrl(void)
{
CLKCTRL(am33xx_smartreflex0_hwmod,
@@ -397,12 +339,10 @@ void omap_hwmod_am33xx_reg(void)
static void omap_hwmod_am43xx_clkctrl(void)
{
- CLKCTRL(am33xx_timer2_hwmod, AM43XX_CM_PER_TIMER2_CLKCTRL_OFFSET);
CLKCTRL(am33xx_smartreflex0_hwmod,
AM43XX_CM_WKUP_SMARTREFLEX0_CLKCTRL_OFFSET);
CLKCTRL(am33xx_smartreflex1_hwmod,
AM43XX_CM_WKUP_SMARTREFLEX1_CLKCTRL_OFFSET);
- CLKCTRL(am33xx_timer1_hwmod, AM43XX_CM_WKUP_TIMER1_CLKCTRL_OFFSET);
CLKCTRL(am33xx_rtc_hwmod, AM43XX_CM_RTC_RTC_CLKCTRL_OFFSET);
CLKCTRL(am33xx_gpmc_hwmod, AM43XX_CM_PER_GPMC_CLKCTRL_OFFSET);
CLKCTRL(am33xx_l4_ls_hwmod, AM43XX_CM_PER_L4LS_CLKCTRL_OFFSET);
diff --git a/arch/arm/mach-omap2/omap_hwmod_43xx_data.c b/arch/arm/mach-omap2/omap_hwmod_43xx_data.c
index d2203f44af88..3f338732ee6c 100644
--- a/arch/arm/mach-omap2/omap_hwmod_43xx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_43xx_data.c
@@ -85,34 +85,6 @@ static struct omap_hwmod am43xx_control_hwmod = {
},
};
-static struct omap_hwmod_class_sysconfig am43xx_synctimer_sysc = {
- .rev_offs = 0x0,
- .sysc_offs = 0x4,
- .sysc_flags = SYSC_HAS_SIDLEMODE,
- .idlemodes = (SIDLE_FORCE | SIDLE_NO),
- .sysc_fields = &omap_hwmod_sysc_type1,
-};
-
-static struct omap_hwmod_class am43xx_synctimer_hwmod_class = {
- .name = "synctimer",
- .sysc = &am43xx_synctimer_sysc,
-};
-
-static struct omap_hwmod am43xx_synctimer_hwmod = {
- .name = "counter_32k",
- .class = &am43xx_synctimer_hwmod_class,
- .clkdm_name = "l4_wkup_aon_clkdm",
- .flags = HWMOD_SWSUP_SIDLE,
- .main_clk = "synctimer_32kclk",
- .prcm = {
- .omap4 = {
- .clkctrl_offs = AM43XX_CM_WKUP_SYNCTIMER_CLKCTRL_OFFSET,
- .modulemode = MODULEMODE_SWCTRL,
- },
- },
-};
-
-
static struct omap_hwmod_class_sysconfig am43xx_usb_otg_ss_sysc = {
.rev_offs = 0x0000,
.sysc_offs = 0x0010,
@@ -206,20 +178,6 @@ static struct omap_hwmod_ocp_if am43xx_l4_wkup__control = {
.user = OCP_USER_MPU,
};
-static struct omap_hwmod_ocp_if am43xx_l4_wkup__timer1 = {
- .master = &am33xx_l4_wkup_hwmod,
- .slave = &am33xx_timer1_hwmod,
- .clk = "sys_clkin_ck",
- .user = OCP_USER_MPU,
-};
-
-static struct omap_hwmod_ocp_if am33xx_l4_wkup__synctimer = {
- .master = &am33xx_l4_wkup_hwmod,
- .slave = &am43xx_synctimer_hwmod,
- .clk = "sys_clkin_ck",
- .user = OCP_USER_MPU,
-};
-
static struct omap_hwmod_ocp_if am43xx_l3_s__usbotgss0 = {
.master = &am33xx_l3_s_hwmod,
.slave = &am43xx_usb_otg_ss0_hwmod,
@@ -235,7 +193,6 @@ static struct omap_hwmod_ocp_if am43xx_l3_s__usbotgss1 = {
};
static struct omap_hwmod_ocp_if *am43xx_hwmod_ocp_ifs[] __initdata = {
- &am33xx_l4_wkup__synctimer,
&am33xx_mpu__l3_main,
&am33xx_mpu__prcm,
&am33xx_l3_s__l4_ls,
@@ -252,8 +209,6 @@ static struct omap_hwmod_ocp_if *am43xx_hwmod_ocp_ifs[] __initdata = {
&am43xx_l4_wkup__control,
&am43xx_l4_wkup__smartreflex0,
&am43xx_l4_wkup__smartreflex1,
- &am43xx_l4_wkup__timer1,
- &am33xx_l4_ls__timer2,
&am33xx_l3_s__gpmc,
&am33xx_l3_main__ocmc,
&am43xx_l3_s__usbotgss0,