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-rw-r--r--arch/arm/Kconfig2
-rw-r--r--arch/arm/boot/dts/exynos4210.dtsi22
-rw-r--r--arch/arm/boot/dts/exynos4212.dtsi22
-rw-r--r--arch/arm/boot/dts/exynos4412.dtsi24
-rw-r--r--arch/arm/boot/dts/exynos5250.dtsi22
-rw-r--r--arch/arm/mach-exynos/Kconfig8
-rw-r--r--arch/arm/mach-exynos/Makefile2
-rw-r--r--arch/arm/mach-exynos/common.c5
-rw-r--r--arch/arm/mach-exynos/common.h2
-rw-r--r--arch/arm/mach-exynos/include/mach/irqs.h6
-rw-r--r--arch/arm/mach-exynos/include/mach/map.h1
-rw-r--r--arch/arm/mach-exynos/include/mach/regs-mct.h53
-rw-r--r--arch/arm/mach-exynos/mach-armlex4210.c2
-rw-r--r--arch/arm/mach-exynos/mach-exynos4-dt.c3
-rw-r--r--arch/arm/mach-exynos/mach-exynos5-dt.c3
-rw-r--r--arch/arm/mach-exynos/mach-nuri.c2
-rw-r--r--arch/arm/mach-exynos/mach-origen.c2
-rw-r--r--arch/arm/mach-exynos/mach-smdk4x12.c4
-rw-r--r--arch/arm/mach-exynos/mach-smdkv310.c4
-rw-r--r--arch/arm/mach-exynos/mct.c485
20 files changed, 105 insertions, 569 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 46fcfa8805f8..ee414be31b4d 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1655,7 +1655,7 @@ config LOCAL_TIMERS
1655 bool "Use local timer interrupts" 1655 bool "Use local timer interrupts"
1656 depends on SMP 1656 depends on SMP
1657 default y 1657 default y
1658 select HAVE_ARM_TWD if (!ARCH_MSM_SCORPIONMP && !EXYNOS4_MCT) 1658 select HAVE_ARM_TWD if (!ARCH_MSM_SCORPIONMP && !CLKSRC_EXYNOS_MCT)
1659 help 1659 help
1660 Enable support for local timers on SMP platforms, rather then the 1660 Enable support for local timers on SMP platforms, rather then the
1661 legacy IPI broadcast method. Local timers allows the system 1661 legacy IPI broadcast method. Local timers allows the system
diff --git a/arch/arm/boot/dts/exynos4210.dtsi b/arch/arm/boot/dts/exynos4210.dtsi
index 2feffc70814c..49a2786e00b9 100644
--- a/arch/arm/boot/dts/exynos4210.dtsi
+++ b/arch/arm/boot/dts/exynos4210.dtsi
@@ -47,6 +47,28 @@
47 <0 12 0>, <0 13 0>, <0 14 0>, <0 15 0>; 47 <0 12 0>, <0 13 0>, <0 14 0>, <0 15 0>;
48 }; 48 };
49 49
50 mct@10050000 {
51 compatible = "samsung,exynos4210-mct";
52 reg = <0x10050000 0x800>;
53 interrupt-controller;
54 #interrups-cells = <2>;
55 interrupt-parent = <&mct_map>;
56 interrupts = <0 0>, <1 0>, <2 0>, <3 0>,
57 <4 0>, <5 0>;
58
59 mct_map: mct-map {
60 #interrupt-cells = <2>;
61 #address-cells = <0>;
62 #size-cells = <0>;
63 interrupt-map = <0x0 0 &gic 0 57 0>,
64 <0x1 0 &gic 0 69 0>,
65 <0x2 0 &combiner 12 6>,
66 <0x3 0 &combiner 12 7>,
67 <0x4 0 &gic 0 42 0>,
68 <0x5 0 &gic 0 48 0>;
69 };
70 };
71
50 pinctrl_0: pinctrl@11400000 { 72 pinctrl_0: pinctrl@11400000 {
51 compatible = "samsung,exynos4210-pinctrl"; 73 compatible = "samsung,exynos4210-pinctrl";
52 reg = <0x11400000 0x1000>; 74 reg = <0x11400000 0x1000>;
diff --git a/arch/arm/boot/dts/exynos4212.dtsi b/arch/arm/boot/dts/exynos4212.dtsi
index c6ae2005961f..36d4299789ef 100644
--- a/arch/arm/boot/dts/exynos4212.dtsi
+++ b/arch/arm/boot/dts/exynos4212.dtsi
@@ -25,4 +25,26 @@
25 gic:interrupt-controller@10490000 { 25 gic:interrupt-controller@10490000 {
26 cpu-offset = <0x8000>; 26 cpu-offset = <0x8000>;
27 }; 27 };
28
29 mct@10050000 {
30 compatible = "samsung,exynos4412-mct";
31 reg = <0x10050000 0x800>;
32 interrupt-controller;
33 #interrups-cells = <2>;
34 interrupt-parent = <&mct_map>;
35 interrupts = <0 0>, <1 0>, <2 0>, <3 0>,
36 <4 0>, <5 0>;
37
38 mct_map: mct-map {
39 #interrupt-cells = <2>;
40 #address-cells = <0>;
41 #size-cells = <0>;
42 interrupt-map = <0x0 0 &gic 0 57 0>,
43 <0x1 0 &combiner 12 5>,
44 <0x2 0 &combiner 12 6>,
45 <0x3 0 &combiner 12 7>,
46 <0x4 0 &gic 1 12 0>,
47 <0x5 0 &gic 1 12 0>;
48 };
49 };
28}; 50};
diff --git a/arch/arm/boot/dts/exynos4412.dtsi b/arch/arm/boot/dts/exynos4412.dtsi
index d7dfe312772a..821c9fdd1e3b 100644
--- a/arch/arm/boot/dts/exynos4412.dtsi
+++ b/arch/arm/boot/dts/exynos4412.dtsi
@@ -25,4 +25,28 @@
25 gic:interrupt-controller@10490000 { 25 gic:interrupt-controller@10490000 {
26 cpu-offset = <0x4000>; 26 cpu-offset = <0x4000>;
27 }; 27 };
28
29 mct@10050000 {
30 compatible = "samsung,exynos4412-mct";
31 reg = <0x10050000 0x800>;
32 interrupt-controller;
33 #interrups-cells = <2>;
34 interrupt-parent = <&mct_map>;
35 interrupts = <0 0>, <1 0>, <2 0>, <3 0>,
36 <4 0>, <5 0>, <6 0>, <7 0>;
37
38 mct_map: mct-map {
39 #interrupt-cells = <2>;
40 #address-cells = <0>;
41 #size-cells = <0>;
42 interrupt-map = <0x0 0 &gic 0 57 0>,
43 <0x1 0 &combiner 12 5>,
44 <0x2 0 &combiner 12 6>,
45 <0x3 0 &combiner 12 7>,
46 <0x4 0 &gic 1 12 0>,
47 <0x5 0 &gic 1 12 0>,
48 <0x6 0 &gic 1 12 0>,
49 <0x7 0 &gic 1 12 0>;
50 };
51 };
28}; 52};
diff --git a/arch/arm/boot/dts/exynos5250.dtsi b/arch/arm/boot/dts/exynos5250.dtsi
index 37a90dd6a4d2..4fe76bf299fb 100644
--- a/arch/arm/boot/dts/exynos5250.dtsi
+++ b/arch/arm/boot/dts/exynos5250.dtsi
@@ -79,6 +79,28 @@
79 <0 28 0>, <0 29 0>, <0 30 0>, <0 31 0>; 79 <0 28 0>, <0 29 0>, <0 30 0>, <0 31 0>;
80 }; 80 };
81 81
82 mct@101C0000 {
83 compatible = "samsung,exynos4210-mct";
84 reg = <0x101C0000 0x800>;
85 interrupt-controller;
86 #interrups-cells = <2>;
87 interrupt-parent = <&mct_map>;
88 interrupts = <0 0>, <1 0>, <2 0>, <3 0>,
89 <4 0>, <5 0>;
90
91 mct_map: mct-map {
92 #interrupt-cells = <2>;
93 #address-cells = <0>;
94 #size-cells = <0>;
95 interrupt-map = <0x0 0 &combiner 23 3>,
96 <0x1 0 &combiner 23 4>,
97 <0x2 0 &combiner 25 2>,
98 <0x3 0 &combiner 25 3>,
99 <0x4 0 &gic 0 120 0>,
100 <0x5 0 &gic 0 121 0>;
101 };
102 };
103
82 watchdog { 104 watchdog {
83 compatible = "samsung,s3c2410-wdt"; 105 compatible = "samsung,s3c2410-wdt";
84 reg = <0x101D0000 0x100>; 106 reg = <0x101D0000 0x100>;
diff --git a/arch/arm/mach-exynos/Kconfig b/arch/arm/mach-exynos/Kconfig
index bc15b9ee8174..ef3b69a6277c 100644
--- a/arch/arm/mach-exynos/Kconfig
+++ b/arch/arm/mach-exynos/Kconfig
@@ -80,12 +80,6 @@ config SOC_EXYNOS5440
80 help 80 help
81 Enable EXYNOS5440 SoC support 81 Enable EXYNOS5440 SoC support
82 82
83config EXYNOS4_MCT
84 bool
85 default y
86 help
87 Use MCT (Multi Core Timer) as kernel timers
88
89config EXYNOS_DEV_DMA 83config EXYNOS_DEV_DMA
90 bool 84 bool
91 help 85 help
@@ -407,6 +401,7 @@ config MACH_EXYNOS4_DT
407 bool "Samsung Exynos4 Machine using device tree" 401 bool "Samsung Exynos4 Machine using device tree"
408 depends on ARCH_EXYNOS4 402 depends on ARCH_EXYNOS4
409 select ARM_AMBA 403 select ARM_AMBA
404 select CLKSRC_OF
410 select CPU_EXYNOS4210 405 select CPU_EXYNOS4210
411 select HAVE_SAMSUNG_KEYPAD if INPUT_KEYBOARD 406 select HAVE_SAMSUNG_KEYPAD if INPUT_KEYBOARD
412 select PINCTRL 407 select PINCTRL
@@ -424,6 +419,7 @@ config MACH_EXYNOS5_DT
424 default y 419 default y
425 depends on ARCH_EXYNOS5 420 depends on ARCH_EXYNOS5
426 select ARM_AMBA 421 select ARM_AMBA
422 select CLKSRC_OF
427 select USE_OF 423 select USE_OF
428 help 424 help
429 Machine support for Samsung EXYNOS5 machine with device tree enabled. 425 Machine support for Samsung EXYNOS5 machine with device tree enabled.
diff --git a/arch/arm/mach-exynos/Makefile b/arch/arm/mach-exynos/Makefile
index 435757e57bb4..daf289b21486 100644
--- a/arch/arm/mach-exynos/Makefile
+++ b/arch/arm/mach-exynos/Makefile
@@ -26,8 +26,6 @@ obj-$(CONFIG_ARCH_EXYNOS) += pmu.o
26 26
27obj-$(CONFIG_SMP) += platsmp.o headsmp.o 27obj-$(CONFIG_SMP) += platsmp.o headsmp.o
28 28
29obj-$(CONFIG_EXYNOS4_MCT) += mct.o
30
31obj-$(CONFIG_HOTPLUG_CPU) += hotplug.o 29obj-$(CONFIG_HOTPLUG_CPU) += hotplug.o
32 30
33# machine support 31# machine support
diff --git a/arch/arm/mach-exynos/common.c b/arch/arm/mach-exynos/common.c
index d63d399c7bae..f91dad6fe9a3 100644
--- a/arch/arm/mach-exynos/common.c
+++ b/arch/arm/mach-exynos/common.c
@@ -257,11 +257,6 @@ static struct map_desc exynos5_iodesc[] __initdata = {
257 .length = SZ_4K, 257 .length = SZ_4K,
258 .type = MT_DEVICE, 258 .type = MT_DEVICE,
259 }, { 259 }, {
260 .virtual = (unsigned long)S5P_VA_SYSTIMER,
261 .pfn = __phys_to_pfn(EXYNOS5_PA_SYSTIMER),
262 .length = SZ_4K,
263 .type = MT_DEVICE,
264 }, {
265 .virtual = (unsigned long)S5P_VA_SYSRAM, 260 .virtual = (unsigned long)S5P_VA_SYSRAM,
266 .pfn = __phys_to_pfn(EXYNOS5_PA_SYSRAM), 261 .pfn = __phys_to_pfn(EXYNOS5_PA_SYSRAM),
267 .length = SZ_4K, 262 .length = SZ_4K,
diff --git a/arch/arm/mach-exynos/common.h b/arch/arm/mach-exynos/common.h
index 9339bb8954be..3b186eaaaa7b 100644
--- a/arch/arm/mach-exynos/common.h
+++ b/arch/arm/mach-exynos/common.h
@@ -12,7 +12,7 @@
12#ifndef __ARCH_ARM_MACH_EXYNOS_COMMON_H 12#ifndef __ARCH_ARM_MACH_EXYNOS_COMMON_H
13#define __ARCH_ARM_MACH_EXYNOS_COMMON_H 13#define __ARCH_ARM_MACH_EXYNOS_COMMON_H
14 14
15extern void exynos4_timer_init(void); 15extern void mct_init(void);
16 16
17struct map_desc; 17struct map_desc;
18void exynos_init_io(struct map_desc *mach_desc, int size); 18void exynos_init_io(struct map_desc *mach_desc, int size);
diff --git a/arch/arm/mach-exynos/include/mach/irqs.h b/arch/arm/mach-exynos/include/mach/irqs.h
index 1f4dc35cd4b9..c0e75d8dd737 100644
--- a/arch/arm/mach-exynos/include/mach/irqs.h
+++ b/arch/arm/mach-exynos/include/mach/irqs.h
@@ -30,8 +30,6 @@
30 30
31/* For EXYNOS4 and EXYNOS5 */ 31/* For EXYNOS4 and EXYNOS5 */
32 32
33#define EXYNOS_IRQ_MCT_LOCALTIMER IRQ_PPI(12)
34
35#define EXYNOS_IRQ_EINT16_31 IRQ_SPI(32) 33#define EXYNOS_IRQ_EINT16_31 IRQ_SPI(32)
36 34
37/* For EXYNOS4 SoCs */ 35/* For EXYNOS4 SoCs */
@@ -323,8 +321,6 @@
323#define EXYNOS5_IRQ_CEC IRQ_SPI(114) 321#define EXYNOS5_IRQ_CEC IRQ_SPI(114)
324#define EXYNOS5_IRQ_SATA IRQ_SPI(115) 322#define EXYNOS5_IRQ_SATA IRQ_SPI(115)
325 323
326#define EXYNOS5_IRQ_MCT_L0 IRQ_SPI(120)
327#define EXYNOS5_IRQ_MCT_L1 IRQ_SPI(121)
328#define EXYNOS5_IRQ_MMC44 IRQ_SPI(123) 324#define EXYNOS5_IRQ_MMC44 IRQ_SPI(123)
329#define EXYNOS5_IRQ_MDMA1 IRQ_SPI(124) 325#define EXYNOS5_IRQ_MDMA1 IRQ_SPI(124)
330#define EXYNOS5_IRQ_FIMC_LITE0 IRQ_SPI(125) 326#define EXYNOS5_IRQ_FIMC_LITE0 IRQ_SPI(125)
@@ -419,8 +415,6 @@
419#define EXYNOS5_IRQ_PMU_CPU1 COMBINER_IRQ(22, 4) 415#define EXYNOS5_IRQ_PMU_CPU1 COMBINER_IRQ(22, 4)
420 416
421#define EXYNOS5_IRQ_EINT0 COMBINER_IRQ(23, 0) 417#define EXYNOS5_IRQ_EINT0 COMBINER_IRQ(23, 0)
422#define EXYNOS5_IRQ_MCT_G0 COMBINER_IRQ(23, 3)
423#define EXYNOS5_IRQ_MCT_G1 COMBINER_IRQ(23, 4)
424 418
425#define EXYNOS5_IRQ_EINT1 COMBINER_IRQ(24, 0) 419#define EXYNOS5_IRQ_EINT1 COMBINER_IRQ(24, 0)
426#define EXYNOS5_IRQ_SYSMMU_LITE1_0 COMBINER_IRQ(24, 1) 420#define EXYNOS5_IRQ_SYSMMU_LITE1_0 COMBINER_IRQ(24, 1)
diff --git a/arch/arm/mach-exynos/include/mach/map.h b/arch/arm/mach-exynos/include/mach/map.h
index 1df6abbf53b8..7f99b7b187d6 100644
--- a/arch/arm/mach-exynos/include/mach/map.h
+++ b/arch/arm/mach-exynos/include/mach/map.h
@@ -65,7 +65,6 @@
65#define EXYNOS5_PA_CMU 0x10010000 65#define EXYNOS5_PA_CMU 0x10010000
66 66
67#define EXYNOS4_PA_SYSTIMER 0x10050000 67#define EXYNOS4_PA_SYSTIMER 0x10050000
68#define EXYNOS5_PA_SYSTIMER 0x101C0000
69 68
70#define EXYNOS4_PA_WATCHDOG 0x10060000 69#define EXYNOS4_PA_WATCHDOG 0x10060000
71#define EXYNOS5_PA_WATCHDOG 0x101D0000 70#define EXYNOS5_PA_WATCHDOG 0x101D0000
diff --git a/arch/arm/mach-exynos/include/mach/regs-mct.h b/arch/arm/mach-exynos/include/mach/regs-mct.h
deleted file mode 100644
index 80dd02ad6d61..000000000000
--- a/arch/arm/mach-exynos/include/mach/regs-mct.h
+++ /dev/null
@@ -1,53 +0,0 @@
1/* arch/arm/mach-exynos4/include/mach/regs-mct.h
2 *
3 * Copyright (c) 2011 Samsung Electronics Co., Ltd.
4 * http://www.samsung.com
5 *
6 * EXYNOS4 MCT configutation
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11*/
12
13#ifndef __ASM_ARCH_REGS_MCT_H
14#define __ASM_ARCH_REGS_MCT_H __FILE__
15
16#include <mach/map.h>
17
18#define EXYNOS4_MCTREG(x) (S5P_VA_SYSTIMER + (x))
19
20#define EXYNOS4_MCT_G_CNT_L EXYNOS4_MCTREG(0x100)
21#define EXYNOS4_MCT_G_CNT_U EXYNOS4_MCTREG(0x104)
22#define EXYNOS4_MCT_G_CNT_WSTAT EXYNOS4_MCTREG(0x110)
23
24#define EXYNOS4_MCT_G_COMP0_L EXYNOS4_MCTREG(0x200)
25#define EXYNOS4_MCT_G_COMP0_U EXYNOS4_MCTREG(0x204)
26#define EXYNOS4_MCT_G_COMP0_ADD_INCR EXYNOS4_MCTREG(0x208)
27
28#define EXYNOS4_MCT_G_TCON EXYNOS4_MCTREG(0x240)
29
30#define EXYNOS4_MCT_G_INT_CSTAT EXYNOS4_MCTREG(0x244)
31#define EXYNOS4_MCT_G_INT_ENB EXYNOS4_MCTREG(0x248)
32#define EXYNOS4_MCT_G_WSTAT EXYNOS4_MCTREG(0x24C)
33
34#define _EXYNOS4_MCT_L_BASE EXYNOS4_MCTREG(0x300)
35#define EXYNOS4_MCT_L_BASE(x) (_EXYNOS4_MCT_L_BASE + (0x100 * x))
36#define EXYNOS4_MCT_L_MASK (0xffffff00)
37
38#define MCT_L_TCNTB_OFFSET (0x00)
39#define MCT_L_ICNTB_OFFSET (0x08)
40#define MCT_L_TCON_OFFSET (0x20)
41#define MCT_L_INT_CSTAT_OFFSET (0x30)
42#define MCT_L_INT_ENB_OFFSET (0x34)
43#define MCT_L_WSTAT_OFFSET (0x40)
44
45#define MCT_G_TCON_START (1 << 8)
46#define MCT_G_TCON_COMP0_AUTO_INC (1 << 1)
47#define MCT_G_TCON_COMP0_ENABLE (1 << 0)
48
49#define MCT_L_TCON_INTERVAL_MODE (1 << 2)
50#define MCT_L_TCON_INT_START (1 << 1)
51#define MCT_L_TCON_TIMER_START (1 << 0)
52
53#endif /* __ASM_ARCH_REGS_MCT_H */
diff --git a/arch/arm/mach-exynos/mach-armlex4210.c b/arch/arm/mach-exynos/mach-armlex4210.c
index 685f29173afa..3b1a34742679 100644
--- a/arch/arm/mach-exynos/mach-armlex4210.c
+++ b/arch/arm/mach-exynos/mach-armlex4210.c
@@ -202,6 +202,6 @@ MACHINE_START(ARMLEX4210, "ARMLEX4210")
202 .map_io = armlex4210_map_io, 202 .map_io = armlex4210_map_io,
203 .init_machine = armlex4210_machine_init, 203 .init_machine = armlex4210_machine_init,
204 .init_late = exynos_init_late, 204 .init_late = exynos_init_late,
205 .init_time = exynos4_timer_init, 205 .init_time = mct_init,
206 .restart = exynos4_restart, 206 .restart = exynos4_restart,
207MACHINE_END 207MACHINE_END
diff --git a/arch/arm/mach-exynos/mach-exynos4-dt.c b/arch/arm/mach-exynos/mach-exynos4-dt.c
index fad268f8548c..daa7b0da9a2d 100644
--- a/arch/arm/mach-exynos/mach-exynos4-dt.c
+++ b/arch/arm/mach-exynos/mach-exynos4-dt.c
@@ -15,6 +15,7 @@
15#include <linux/of_fdt.h> 15#include <linux/of_fdt.h>
16#include <linux/serial_core.h> 16#include <linux/serial_core.h>
17#include <linux/memblock.h> 17#include <linux/memblock.h>
18#include <linux/clocksource.h>
18 19
19#include <asm/mach/arch.h> 20#include <asm/mach/arch.h>
20#include <mach/map.h> 21#include <mach/map.h>
@@ -158,7 +159,7 @@ DT_MACHINE_START(EXYNOS4210_DT, "Samsung Exynos4 (Flattened Device Tree)")
158 .map_io = exynos4_dt_map_io, 159 .map_io = exynos4_dt_map_io,
159 .init_machine = exynos4_dt_machine_init, 160 .init_machine = exynos4_dt_machine_init,
160 .init_late = exynos_init_late, 161 .init_late = exynos_init_late,
161 .init_time = exynos4_timer_init, 162 .init_time = clocksource_of_init,
162 .dt_compat = exynos4_dt_compat, 163 .dt_compat = exynos4_dt_compat,
163 .restart = exynos4_restart, 164 .restart = exynos4_restart,
164 .reserve = exynos4_reserve, 165 .reserve = exynos4_reserve,
diff --git a/arch/arm/mach-exynos/mach-exynos5-dt.c b/arch/arm/mach-exynos/mach-exynos5-dt.c
index 8ef895745175..62d43dacf636 100644
--- a/arch/arm/mach-exynos/mach-exynos5-dt.c
+++ b/arch/arm/mach-exynos/mach-exynos5-dt.c
@@ -14,6 +14,7 @@
14#include <linux/serial_core.h> 14#include <linux/serial_core.h>
15#include <linux/memblock.h> 15#include <linux/memblock.h>
16#include <linux/io.h> 16#include <linux/io.h>
17#include <linux/clocksource.h>
17 18
18#include <asm/mach/arch.h> 19#include <asm/mach/arch.h>
19#include <mach/map.h> 20#include <mach/map.h>
@@ -217,7 +218,7 @@ DT_MACHINE_START(EXYNOS5_DT, "SAMSUNG EXYNOS5 (Flattened Device Tree)")
217 .map_io = exynos5_dt_map_io, 218 .map_io = exynos5_dt_map_io,
218 .init_machine = exynos5_dt_machine_init, 219 .init_machine = exynos5_dt_machine_init,
219 .init_late = exynos_init_late, 220 .init_late = exynos_init_late,
220 .init_time = exynos4_timer_init, 221 .init_time = clocksource_of_init,
221 .dt_compat = exynos5_dt_compat, 222 .dt_compat = exynos5_dt_compat,
222 .restart = exynos5_restart, 223 .restart = exynos5_restart,
223 .reserve = exynos5_reserve, 224 .reserve = exynos5_reserve,
diff --git a/arch/arm/mach-exynos/mach-nuri.c b/arch/arm/mach-exynos/mach-nuri.c
index 1ea79730187f..da3605d15110 100644
--- a/arch/arm/mach-exynos/mach-nuri.c
+++ b/arch/arm/mach-exynos/mach-nuri.c
@@ -1380,7 +1380,7 @@ MACHINE_START(NURI, "NURI")
1380 .map_io = nuri_map_io, 1380 .map_io = nuri_map_io,
1381 .init_machine = nuri_machine_init, 1381 .init_machine = nuri_machine_init,
1382 .init_late = exynos_init_late, 1382 .init_late = exynos_init_late,
1383 .init_time = exynos4_timer_init, 1383 .init_time = mct_init,
1384 .reserve = &nuri_reserve, 1384 .reserve = &nuri_reserve,
1385 .restart = exynos4_restart, 1385 .restart = exynos4_restart,
1386MACHINE_END 1386MACHINE_END
diff --git a/arch/arm/mach-exynos/mach-origen.c b/arch/arm/mach-exynos/mach-origen.c
index 579d2d171daa..1772cd284f4c 100644
--- a/arch/arm/mach-exynos/mach-origen.c
+++ b/arch/arm/mach-exynos/mach-origen.c
@@ -815,7 +815,7 @@ MACHINE_START(ORIGEN, "ORIGEN")
815 .map_io = origen_map_io, 815 .map_io = origen_map_io,
816 .init_machine = origen_machine_init, 816 .init_machine = origen_machine_init,
817 .init_late = exynos_init_late, 817 .init_late = exynos_init_late,
818 .init_time = exynos4_timer_init, 818 .init_time = mct_init,
819 .reserve = &origen_reserve, 819 .reserve = &origen_reserve,
820 .restart = exynos4_restart, 820 .restart = exynos4_restart,
821MACHINE_END 821MACHINE_END
diff --git a/arch/arm/mach-exynos/mach-smdk4x12.c b/arch/arm/mach-exynos/mach-smdk4x12.c
index fe6149624b84..34a6356364eb 100644
--- a/arch/arm/mach-exynos/mach-smdk4x12.c
+++ b/arch/arm/mach-exynos/mach-smdk4x12.c
@@ -376,7 +376,7 @@ MACHINE_START(SMDK4212, "SMDK4212")
376 .init_irq = exynos4_init_irq, 376 .init_irq = exynos4_init_irq,
377 .map_io = smdk4x12_map_io, 377 .map_io = smdk4x12_map_io,
378 .init_machine = smdk4x12_machine_init, 378 .init_machine = smdk4x12_machine_init,
379 .init_time = exynos4_timer_init, 379 .init_time = mct_init,
380 .restart = exynos4_restart, 380 .restart = exynos4_restart,
381 .reserve = &smdk4x12_reserve, 381 .reserve = &smdk4x12_reserve,
382MACHINE_END 382MACHINE_END
@@ -390,7 +390,7 @@ MACHINE_START(SMDK4412, "SMDK4412")
390 .map_io = smdk4x12_map_io, 390 .map_io = smdk4x12_map_io,
391 .init_machine = smdk4x12_machine_init, 391 .init_machine = smdk4x12_machine_init,
392 .init_late = exynos_init_late, 392 .init_late = exynos_init_late,
393 .init_time = exynos4_timer_init, 393 .init_time = mct_init,
394 .restart = exynos4_restart, 394 .restart = exynos4_restart,
395 .reserve = &smdk4x12_reserve, 395 .reserve = &smdk4x12_reserve,
396MACHINE_END 396MACHINE_END
diff --git a/arch/arm/mach-exynos/mach-smdkv310.c b/arch/arm/mach-exynos/mach-smdkv310.c
index d71672922b19..893b14e8c62a 100644
--- a/arch/arm/mach-exynos/mach-smdkv310.c
+++ b/arch/arm/mach-exynos/mach-smdkv310.c
@@ -423,7 +423,7 @@ MACHINE_START(SMDKV310, "SMDKV310")
423 .init_irq = exynos4_init_irq, 423 .init_irq = exynos4_init_irq,
424 .map_io = smdkv310_map_io, 424 .map_io = smdkv310_map_io,
425 .init_machine = smdkv310_machine_init, 425 .init_machine = smdkv310_machine_init,
426 .init_time = exynos4_timer_init, 426 .init_time = mct_init,
427 .reserve = &smdkv310_reserve, 427 .reserve = &smdkv310_reserve,
428 .restart = exynos4_restart, 428 .restart = exynos4_restart,
429MACHINE_END 429MACHINE_END
@@ -436,7 +436,7 @@ MACHINE_START(SMDKC210, "SMDKC210")
436 .map_io = smdkv310_map_io, 436 .map_io = smdkv310_map_io,
437 .init_machine = smdkv310_machine_init, 437 .init_machine = smdkv310_machine_init,
438 .init_late = exynos_init_late, 438 .init_late = exynos_init_late,
439 .init_time = exynos4_timer_init, 439 .init_time = mct_init,
440 .reserve = &smdkv310_reserve, 440 .reserve = &smdkv310_reserve,
441 .restart = exynos4_restart, 441 .restart = exynos4_restart,
442MACHINE_END 442MACHINE_END
diff --git a/arch/arm/mach-exynos/mct.c b/arch/arm/mach-exynos/mct.c
deleted file mode 100644
index c9d6650f9b5d..000000000000
--- a/arch/arm/mach-exynos/mct.c
+++ /dev/null
@@ -1,485 +0,0 @@
1/* linux/arch/arm/mach-exynos4/mct.c
2 *
3 * Copyright (c) 2011 Samsung Electronics Co., Ltd.
4 * http://www.samsung.com
5 *
6 * EXYNOS4 MCT(Multi-Core Timer) support
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11*/
12
13#include <linux/sched.h>
14#include <linux/interrupt.h>
15#include <linux/irq.h>
16#include <linux/err.h>
17#include <linux/clk.h>
18#include <linux/clockchips.h>
19#include <linux/platform_device.h>
20#include <linux/delay.h>
21#include <linux/percpu.h>
22#include <linux/of.h>
23
24#include <asm/arch_timer.h>
25#include <asm/localtimer.h>
26
27#include <plat/cpu.h>
28
29#include <mach/map.h>
30#include <mach/irqs.h>
31#include <mach/regs-mct.h>
32#include <asm/mach/time.h>
33
34#define TICK_BASE_CNT 1
35
36enum {
37 MCT_INT_SPI,
38 MCT_INT_PPI
39};
40
41static unsigned long clk_rate;
42static unsigned int mct_int_type;
43
44struct mct_clock_event_device {
45 struct clock_event_device *evt;
46 void __iomem *base;
47 char name[10];
48};
49
50static void exynos4_mct_write(unsigned int value, void *addr)
51{
52 void __iomem *stat_addr;
53 u32 mask;
54 u32 i;
55
56 __raw_writel(value, addr);
57
58 if (likely(addr >= EXYNOS4_MCT_L_BASE(0))) {
59 u32 base = (u32) addr & EXYNOS4_MCT_L_MASK;
60 switch ((u32) addr & ~EXYNOS4_MCT_L_MASK) {
61 case (u32) MCT_L_TCON_OFFSET:
62 stat_addr = (void __iomem *) base + MCT_L_WSTAT_OFFSET;
63 mask = 1 << 3; /* L_TCON write status */
64 break;
65 case (u32) MCT_L_ICNTB_OFFSET:
66 stat_addr = (void __iomem *) base + MCT_L_WSTAT_OFFSET;
67 mask = 1 << 1; /* L_ICNTB write status */
68 break;
69 case (u32) MCT_L_TCNTB_OFFSET:
70 stat_addr = (void __iomem *) base + MCT_L_WSTAT_OFFSET;
71 mask = 1 << 0; /* L_TCNTB write status */
72 break;
73 default:
74 return;
75 }
76 } else {
77 switch ((u32) addr) {
78 case (u32) EXYNOS4_MCT_G_TCON:
79 stat_addr = EXYNOS4_MCT_G_WSTAT;
80 mask = 1 << 16; /* G_TCON write status */
81 break;
82 case (u32) EXYNOS4_MCT_G_COMP0_L:
83 stat_addr = EXYNOS4_MCT_G_WSTAT;
84 mask = 1 << 0; /* G_COMP0_L write status */
85 break;
86 case (u32) EXYNOS4_MCT_G_COMP0_U:
87 stat_addr = EXYNOS4_MCT_G_WSTAT;
88 mask = 1 << 1; /* G_COMP0_U write status */
89 break;
90 case (u32) EXYNOS4_MCT_G_COMP0_ADD_INCR:
91 stat_addr = EXYNOS4_MCT_G_WSTAT;
92 mask = 1 << 2; /* G_COMP0_ADD_INCR w status */
93 break;
94 case (u32) EXYNOS4_MCT_G_CNT_L:
95 stat_addr = EXYNOS4_MCT_G_CNT_WSTAT;
96 mask = 1 << 0; /* G_CNT_L write status */
97 break;
98 case (u32) EXYNOS4_MCT_G_CNT_U:
99 stat_addr = EXYNOS4_MCT_G_CNT_WSTAT;
100 mask = 1 << 1; /* G_CNT_U write status */
101 break;
102 default:
103 return;
104 }
105 }
106
107 /* Wait maximum 1 ms until written values are applied */
108 for (i = 0; i < loops_per_jiffy / 1000 * HZ; i++)
109 if (__raw_readl(stat_addr) & mask) {
110 __raw_writel(mask, stat_addr);
111 return;
112 }
113
114 panic("MCT hangs after writing %d (addr:0x%08x)\n", value, (u32)addr);
115}
116
117/* Clocksource handling */
118static void exynos4_mct_frc_start(u32 hi, u32 lo)
119{
120 u32 reg;
121
122 exynos4_mct_write(lo, EXYNOS4_MCT_G_CNT_L);
123 exynos4_mct_write(hi, EXYNOS4_MCT_G_CNT_U);
124
125 reg = __raw_readl(EXYNOS4_MCT_G_TCON);
126 reg |= MCT_G_TCON_START;
127 exynos4_mct_write(reg, EXYNOS4_MCT_G_TCON);
128}
129
130static cycle_t exynos4_frc_read(struct clocksource *cs)
131{
132 unsigned int lo, hi;
133 u32 hi2 = __raw_readl(EXYNOS4_MCT_G_CNT_U);
134
135 do {
136 hi = hi2;
137 lo = __raw_readl(EXYNOS4_MCT_G_CNT_L);
138 hi2 = __raw_readl(EXYNOS4_MCT_G_CNT_U);
139 } while (hi != hi2);
140
141 return ((cycle_t)hi << 32) | lo;
142}
143
144static void exynos4_frc_resume(struct clocksource *cs)
145{
146 exynos4_mct_frc_start(0, 0);
147}
148
149struct clocksource mct_frc = {
150 .name = "mct-frc",
151 .rating = 400,
152 .read = exynos4_frc_read,
153 .mask = CLOCKSOURCE_MASK(64),
154 .flags = CLOCK_SOURCE_IS_CONTINUOUS,
155 .resume = exynos4_frc_resume,
156};
157
158static void __init exynos4_clocksource_init(void)
159{
160 exynos4_mct_frc_start(0, 0);
161
162 if (clocksource_register_hz(&mct_frc, clk_rate))
163 panic("%s: can't register clocksource\n", mct_frc.name);
164}
165
166static void exynos4_mct_comp0_stop(void)
167{
168 unsigned int tcon;
169
170 tcon = __raw_readl(EXYNOS4_MCT_G_TCON);
171 tcon &= ~(MCT_G_TCON_COMP0_ENABLE | MCT_G_TCON_COMP0_AUTO_INC);
172
173 exynos4_mct_write(tcon, EXYNOS4_MCT_G_TCON);
174 exynos4_mct_write(0, EXYNOS4_MCT_G_INT_ENB);
175}
176
177static void exynos4_mct_comp0_start(enum clock_event_mode mode,
178 unsigned long cycles)
179{
180 unsigned int tcon;
181 cycle_t comp_cycle;
182
183 tcon = __raw_readl(EXYNOS4_MCT_G_TCON);
184
185 if (mode == CLOCK_EVT_MODE_PERIODIC) {
186 tcon |= MCT_G_TCON_COMP0_AUTO_INC;
187 exynos4_mct_write(cycles, EXYNOS4_MCT_G_COMP0_ADD_INCR);
188 }
189
190 comp_cycle = exynos4_frc_read(&mct_frc) + cycles;
191 exynos4_mct_write((u32)comp_cycle, EXYNOS4_MCT_G_COMP0_L);
192 exynos4_mct_write((u32)(comp_cycle >> 32), EXYNOS4_MCT_G_COMP0_U);
193
194 exynos4_mct_write(0x1, EXYNOS4_MCT_G_INT_ENB);
195
196 tcon |= MCT_G_TCON_COMP0_ENABLE;
197 exynos4_mct_write(tcon , EXYNOS4_MCT_G_TCON);
198}
199
200static int exynos4_comp_set_next_event(unsigned long cycles,
201 struct clock_event_device *evt)
202{
203 exynos4_mct_comp0_start(evt->mode, cycles);
204
205 return 0;
206}
207
208static void exynos4_comp_set_mode(enum clock_event_mode mode,
209 struct clock_event_device *evt)
210{
211 unsigned long cycles_per_jiffy;
212 exynos4_mct_comp0_stop();
213
214 switch (mode) {
215 case CLOCK_EVT_MODE_PERIODIC:
216 cycles_per_jiffy =
217 (((unsigned long long) NSEC_PER_SEC / HZ * evt->mult) >> evt->shift);
218 exynos4_mct_comp0_start(mode, cycles_per_jiffy);
219 break;
220
221 case CLOCK_EVT_MODE_ONESHOT:
222 case CLOCK_EVT_MODE_UNUSED:
223 case CLOCK_EVT_MODE_SHUTDOWN:
224 case CLOCK_EVT_MODE_RESUME:
225 break;
226 }
227}
228
229static struct clock_event_device mct_comp_device = {
230 .name = "mct-comp",
231 .features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT,
232 .rating = 250,
233 .set_next_event = exynos4_comp_set_next_event,
234 .set_mode = exynos4_comp_set_mode,
235};
236
237static irqreturn_t exynos4_mct_comp_isr(int irq, void *dev_id)
238{
239 struct clock_event_device *evt = dev_id;
240
241 exynos4_mct_write(0x1, EXYNOS4_MCT_G_INT_CSTAT);
242
243 evt->event_handler(evt);
244
245 return IRQ_HANDLED;
246}
247
248static struct irqaction mct_comp_event_irq = {
249 .name = "mct_comp_irq",
250 .flags = IRQF_TIMER | IRQF_IRQPOLL,
251 .handler = exynos4_mct_comp_isr,
252 .dev_id = &mct_comp_device,
253};
254
255static void exynos4_clockevent_init(void)
256{
257 mct_comp_device.cpumask = cpumask_of(0);
258 clockevents_config_and_register(&mct_comp_device, clk_rate,
259 0xf, 0xffffffff);
260
261 if (soc_is_exynos5250())
262 setup_irq(EXYNOS5_IRQ_MCT_G0, &mct_comp_event_irq);
263 else
264 setup_irq(EXYNOS4_IRQ_MCT_G0, &mct_comp_event_irq);
265}
266
267#ifdef CONFIG_LOCAL_TIMERS
268
269static DEFINE_PER_CPU(struct mct_clock_event_device, percpu_mct_tick);
270
271/* Clock event handling */
272static void exynos4_mct_tick_stop(struct mct_clock_event_device *mevt)
273{
274 unsigned long tmp;
275 unsigned long mask = MCT_L_TCON_INT_START | MCT_L_TCON_TIMER_START;
276 void __iomem *addr = mevt->base + MCT_L_TCON_OFFSET;
277
278 tmp = __raw_readl(addr);
279 if (tmp & mask) {
280 tmp &= ~mask;
281 exynos4_mct_write(tmp, addr);
282 }
283}
284
285static void exynos4_mct_tick_start(unsigned long cycles,
286 struct mct_clock_event_device *mevt)
287{
288 unsigned long tmp;
289
290 exynos4_mct_tick_stop(mevt);
291
292 tmp = (1 << 31) | cycles; /* MCT_L_UPDATE_ICNTB */
293
294 /* update interrupt count buffer */
295 exynos4_mct_write(tmp, mevt->base + MCT_L_ICNTB_OFFSET);
296
297 /* enable MCT tick interrupt */
298 exynos4_mct_write(0x1, mevt->base + MCT_L_INT_ENB_OFFSET);
299
300 tmp = __raw_readl(mevt->base + MCT_L_TCON_OFFSET);
301 tmp |= MCT_L_TCON_INT_START | MCT_L_TCON_TIMER_START |
302 MCT_L_TCON_INTERVAL_MODE;
303 exynos4_mct_write(tmp, mevt->base + MCT_L_TCON_OFFSET);
304}
305
306static int exynos4_tick_set_next_event(unsigned long cycles,
307 struct clock_event_device *evt)
308{
309 struct mct_clock_event_device *mevt = this_cpu_ptr(&percpu_mct_tick);
310
311 exynos4_mct_tick_start(cycles, mevt);
312
313 return 0;
314}
315
316static inline void exynos4_tick_set_mode(enum clock_event_mode mode,
317 struct clock_event_device *evt)
318{
319 struct mct_clock_event_device *mevt = this_cpu_ptr(&percpu_mct_tick);
320 unsigned long cycles_per_jiffy;
321
322 exynos4_mct_tick_stop(mevt);
323
324 switch (mode) {
325 case CLOCK_EVT_MODE_PERIODIC:
326 cycles_per_jiffy =
327 (((unsigned long long) NSEC_PER_SEC / HZ * evt->mult) >> evt->shift);
328 exynos4_mct_tick_start(cycles_per_jiffy, mevt);
329 break;
330
331 case CLOCK_EVT_MODE_ONESHOT:
332 case CLOCK_EVT_MODE_UNUSED:
333 case CLOCK_EVT_MODE_SHUTDOWN:
334 case CLOCK_EVT_MODE_RESUME:
335 break;
336 }
337}
338
339static int exynos4_mct_tick_clear(struct mct_clock_event_device *mevt)
340{
341 struct clock_event_device *evt = mevt->evt;
342
343 /*
344 * This is for supporting oneshot mode.
345 * Mct would generate interrupt periodically
346 * without explicit stopping.
347 */
348 if (evt->mode != CLOCK_EVT_MODE_PERIODIC)
349 exynos4_mct_tick_stop(mevt);
350
351 /* Clear the MCT tick interrupt */
352 if (__raw_readl(mevt->base + MCT_L_INT_CSTAT_OFFSET) & 1) {
353 exynos4_mct_write(0x1, mevt->base + MCT_L_INT_CSTAT_OFFSET);
354 return 1;
355 } else {
356 return 0;
357 }
358}
359
360static irqreturn_t exynos4_mct_tick_isr(int irq, void *dev_id)
361{
362 struct mct_clock_event_device *mevt = dev_id;
363 struct clock_event_device *evt = mevt->evt;
364
365 exynos4_mct_tick_clear(mevt);
366
367 evt->event_handler(evt);
368
369 return IRQ_HANDLED;
370}
371
372static struct irqaction mct_tick0_event_irq = {
373 .name = "mct_tick0_irq",
374 .flags = IRQF_TIMER | IRQF_NOBALANCING,
375 .handler = exynos4_mct_tick_isr,
376};
377
378static struct irqaction mct_tick1_event_irq = {
379 .name = "mct_tick1_irq",
380 .flags = IRQF_TIMER | IRQF_NOBALANCING,
381 .handler = exynos4_mct_tick_isr,
382};
383
384static int __cpuinit exynos4_local_timer_setup(struct clock_event_device *evt)
385{
386 struct mct_clock_event_device *mevt;
387 unsigned int cpu = smp_processor_id();
388 int mct_lx_irq;
389
390 mevt = this_cpu_ptr(&percpu_mct_tick);
391 mevt->evt = evt;
392
393 mevt->base = EXYNOS4_MCT_L_BASE(cpu);
394 sprintf(mevt->name, "mct_tick%d", cpu);
395
396 evt->name = mevt->name;
397 evt->cpumask = cpumask_of(cpu);
398 evt->set_next_event = exynos4_tick_set_next_event;
399 evt->set_mode = exynos4_tick_set_mode;
400 evt->features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT;
401 evt->rating = 450;
402 clockevents_config_and_register(evt, clk_rate / (TICK_BASE_CNT + 1),
403 0xf, 0x7fffffff);
404
405 exynos4_mct_write(TICK_BASE_CNT, mevt->base + MCT_L_TCNTB_OFFSET);
406
407 if (mct_int_type == MCT_INT_SPI) {
408 if (cpu == 0) {
409 mct_lx_irq = soc_is_exynos4210() ? EXYNOS4_IRQ_MCT_L0 :
410 EXYNOS5_IRQ_MCT_L0;
411 mct_tick0_event_irq.dev_id = mevt;
412 evt->irq = mct_lx_irq;
413 setup_irq(mct_lx_irq, &mct_tick0_event_irq);
414 } else {
415 mct_lx_irq = soc_is_exynos4210() ? EXYNOS4_IRQ_MCT_L1 :
416 EXYNOS5_IRQ_MCT_L1;
417 mct_tick1_event_irq.dev_id = mevt;
418 evt->irq = mct_lx_irq;
419 setup_irq(mct_lx_irq, &mct_tick1_event_irq);
420 irq_set_affinity(mct_lx_irq, cpumask_of(1));
421 }
422 } else {
423 enable_percpu_irq(EXYNOS_IRQ_MCT_LOCALTIMER, 0);
424 }
425
426 return 0;
427}
428
429static void exynos4_local_timer_stop(struct clock_event_device *evt)
430{
431 unsigned int cpu = smp_processor_id();
432 evt->set_mode(CLOCK_EVT_MODE_UNUSED, evt);
433 if (mct_int_type == MCT_INT_SPI)
434 if (cpu == 0)
435 remove_irq(evt->irq, &mct_tick0_event_irq);
436 else
437 remove_irq(evt->irq, &mct_tick1_event_irq);
438 else
439 disable_percpu_irq(EXYNOS_IRQ_MCT_LOCALTIMER);
440}
441
442static struct local_timer_ops exynos4_mct_tick_ops __cpuinitdata = {
443 .setup = exynos4_local_timer_setup,
444 .stop = exynos4_local_timer_stop,
445};
446#endif /* CONFIG_LOCAL_TIMERS */
447
448static void __init exynos4_timer_resources(void)
449{
450 struct clk *mct_clk;
451 mct_clk = clk_get(NULL, "xtal");
452
453 clk_rate = clk_get_rate(mct_clk);
454
455#ifdef CONFIG_LOCAL_TIMERS
456 if (mct_int_type == MCT_INT_PPI) {
457 int err;
458
459 err = request_percpu_irq(EXYNOS_IRQ_MCT_LOCALTIMER,
460 exynos4_mct_tick_isr, "MCT",
461 &percpu_mct_tick);
462 WARN(err, "MCT: can't request IRQ %d (%d)\n",
463 EXYNOS_IRQ_MCT_LOCALTIMER, err);
464 }
465
466 local_timer_register(&exynos4_mct_tick_ops);
467#endif /* CONFIG_LOCAL_TIMERS */
468}
469
470void __init exynos4_timer_init(void)
471{
472 if (soc_is_exynos5440()) {
473 arch_timer_of_register();
474 return;
475 }
476
477 if ((soc_is_exynos4210()) || (soc_is_exynos5250()))
478 mct_int_type = MCT_INT_SPI;
479 else
480 mct_int_type = MCT_INT_PPI;
481
482 exynos4_timer_resources();
483 exynos4_clocksource_init();
484 exynos4_clockevent_init();
485}
generated by cgit v1.2.2 (git 2.25.0) at 2024-10-16 04:30:15 -0400