Skip to contentSkip to conversation

arm: prima2: move to generic reset controller driver framework

PATCH Superseded Barry Song 2 participants 3 messages Jul 30, 2013 – Aug 27, 2013

Subsystems (3)

v2 of 5 Superseded Latest is v5 →

lore
Share & tools
lore

Barry Song

author
#0 lore raw

PATCH v2 1/1 arm: prima2: move to generic reset controller driver framework

this moves to generic IP module reset framework, and make other drivers use common device_reset() API.

Cc Srinivas Kandagatla <[email protected]>

---
-v2: rebase againest 3.11-rc;
move the init function to init_machine to avoid redundant calling for non-csr platforms of multi-platform;

 arch/arm/boot/dts/atlas6.dtsi |  3 +-
 arch/arm/boot/dts/marco.dtsi  |  3 +-
 arch/arm/boot/dts/prima2.dtsi |  3 +-
 arch/arm/mach-prima2/Kconfig  |  1 +
 arch/arm/mach-prima2/common.c | 12 +++++++-
 arch/arm/mach-prima2/common.h |  1 +
 arch/arm/mach-prima2/rstc.c   | 72 +++++++++++++++++++++++++------------------
 7 files changed, 61 insertions(+), 34 deletions(-)
arch/arm/boot/dts/atlas6.dtsi +2 -1
index 9866cd7..e3f3ec8 100644
@@ -56,9 +56,10 @@
 				#clock-cells = <1>;
 			};
 
-			reset-controller at 88010000 {
+			rstc: reset-controller at 88010000 {
 				compatible = "sirf,prima2-rstc";
 				reg = <0x88010000 0x1000>;
+				#reset-cells = <1>;
 			};
 
 			rsc-controller at 88020000 {
arch/arm/boot/dts/marco.dtsi +2 -1
index 1579c34..0c9647d 100644
@@ -58,9 +58,10 @@
 			#size-cells = <1>;
 			ranges = <0xc2000000 0xc2000000 0x1000000>;
 
-			reset-controller at c2000000 {
+			rstc: reset-controller at c2000000 {
 				compatible = "sirf,marco-rstc";
 				reg = <0xc2000000 0x10000>;
+				#reset-cells = <1>;
 			};
 		};
 
arch/arm/boot/dts/prima2.dtsi +2 -1
index 05e9489..3560ad3 100644
@@ -67,9 +67,10 @@
 				#clock-cells = <1>;
 			};
 
-			reset-controller at 88010000 {
+			rstc: reset-controller at 88010000 {
 				compatible = "sirf,prima2-rstc";
 				reg = <0x88010000 0x1000>;
+				#reset-cells = <1>;
 			};
 
 			rsc-controller at 88020000 {
arch/arm/mach-prima2/Kconfig +1 -0
index 6988b11..f37a1de 100644
@@ -1,5 +1,6 @@
 config ARCH_SIRF
 	bool "CSR SiRF" if ARCH_MULTI_V7
+	select ARCH_HAS_RESET_CONTROLLER
 	select ARCH_REQUIRE_GPIOLIB
 	select GENERIC_CLOCKEVENTS
 	select GENERIC_IRQ_CHIP
arch/arm/mach-prima2/common.c +11 -1
index 2c70f74..73db0dc 100644
@@ -16,7 +16,14 @@
 #include <linux/of_platform.h>
 #include "common.h"
 
-void __init sirfsoc_init_late(void)
+static void __init sirfsoc_init_mach(void)
+{
+        sirfsoc_of_rstc_init();
+        of_platform_populate(NULL, of_default_bus_match_table,
+                NULL, NULL);
+}
+
+static void __init sirfsoc_init_late(void)
 {
 	sirfsoc_pm_init();
 }
@@ -45,6 +52,7 @@ DT_MACHINE_START(ATLAS6_DT, "Generic ATLAS6 (Flattened Device Tree)")
 	.nr_irqs	= 128,
 	.map_io         = sirfsoc_map_io,
 	.init_time	= sirfsoc_init_time,
+	.init_machine   = sirfsoc_init_mach,
 	.init_late	= sirfsoc_init_late,
 	.dt_compat      = atlas6_dt_match,
 	.restart	= sirfsoc_restart,
@@ -62,6 +70,7 @@ DT_MACHINE_START(PRIMA2_DT, "Generic PRIMA2 (Flattened Device Tree)")
 	.nr_irqs	= 128,
 	.map_io         = sirfsoc_map_io,
 	.init_time	= sirfsoc_init_time,
+	.init_machine   = sirfsoc_init_mach,
 	.dma_zone_size	= SZ_256M,
 	.init_late	= sirfsoc_init_late,
 	.dt_compat      = prima2_dt_match,
@@ -80,6 +89,7 @@ DT_MACHINE_START(MARCO_DT, "Generic MARCO (Flattened Device Tree)")
 	.smp            = smp_ops(sirfsoc_smp_ops),
 	.map_io         = sirfsoc_map_io,
 	.init_time	= sirfsoc_init_time,
+	.init_machine   = sirfsoc_init_mach,
 	.init_late	= sirfsoc_init_late,
 	.dt_compat      = marco_dt_match,
 	.restart	= sirfsoc_restart,
arch/arm/mach-prima2/common.h +1 -0
index a630485..aaf8d5a 100644
@@ -22,6 +22,7 @@ extern struct smp_operations   sirfsoc_smp_ops;
 extern void sirfsoc_secondary_startup(void);
 extern void sirfsoc_cpu_die(unsigned int cpu);
 
+extern void __init sirfsoc_of_rstc_init(void);
 extern void __init sirfsoc_of_irq_init(void);
 extern void __init sirfsoc_of_clk_init(void);
 extern void sirfsoc_restart(enum reboot_mode, const char *);
arch/arm/mach-prima2/rstc.c +42 -30

94 lines not on this page · raw message

Signature · 1 line
1.8.2.3
author
#1 lore raw

PATCH v2 1/1 arm: prima2: move to generic reset controller driver framework

2013/7/30 Barry Song <[email protected]>:

Quoted 5 lines

this moves to generic IP module reset framework, and make other drivers use common device_reset() API.

Cc Srinivas Kandagatla <[email protected]>

Oolf, do you want to comment on it more, or apply it manually, or want me to send a pull request?

-barry

#2 lore raw

PATCH v2 1/1 arm: prima2: move to generic reset controller driver framework

Quoted 9 lines · Barry Song

2013/7/30 Barry Song <[email protected]>:

Quoted 5 lines

this moves to generic IP module reset framework, and make other drivers use common device_reset() API.

Cc Srinivas Kandagatla <[email protected]>

Oolf, do you want to comment on it more, or apply it manually, or want me to send a pull request?

Hi,

See my comments on the reset controller api pull request; there still seems to be some discussion about how to implement it. So the api is not likely to be ready until after 3.12.

-Olof