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authorArnd Bergmann <arnd@arndb.de>2011-12-28 05:46:03 -0500
committerArnd Bergmann <arnd@arndb.de>2011-12-28 05:46:03 -0500
commit15db3e823c3246e3bd31fe454f5c8927eb85caf2 (patch)
treef91811c5872ede20ec86f4256a9f60befa6b8a61 /arch/arm
parentd7bd1b8a6104bcdc53611689fec8715a236a22c8 (diff)
parentedf3ff5bac2582b57de4e7c6569fee5d7c1c0a42 (diff)
Merge branch 'drivers/rtc-sa1100' into next/drivers
* drivers/rtc-sa1100: ARM: sa1100: clean up of the clock support ARM: pxa: add dummy clock for sa1100-rtc RTC: sa1100: support sa1100, pxa and mmp soc families RTC: sa1100: remove redundant code of setting alarm RTC: sa1100: Clean out ost register Conflicts: arch/arm/mach-pxa/pxa25x.c arch/arm/mach-pxa/pxa27x.c
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/Kconfig2
-rw-r--r--arch/arm/mach-pxa/devices.c20
-rw-r--r--arch/arm/mach-pxa/pxa25x.c1
-rw-r--r--arch/arm/mach-pxa/pxa27x.c1
-rw-r--r--arch/arm/mach-pxa/pxa300.c1
-rw-r--r--arch/arm/mach-pxa/pxa320.c1
-rw-r--r--arch/arm/mach-pxa/pxa3xx.c1
-rw-r--r--arch/arm/mach-pxa/pxa95x.c1
-rw-r--r--arch/arm/mach-sa1100/clock.c91
-rw-r--r--arch/arm/mach-sa1100/generic.c20
10 files changed, 113 insertions, 26 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index b8c69726839c..34d13ff3901c 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -741,7 +741,7 @@ config ARCH_SA1100
741 select ARCH_HAS_CPUFREQ 741 select ARCH_HAS_CPUFREQ
742 select CPU_FREQ 742 select CPU_FREQ
743 select GENERIC_CLOCKEVENTS 743 select GENERIC_CLOCKEVENTS
744 select HAVE_CLK 744 select CLKDEV_LOOKUP
745 select HAVE_SCHED_CLOCK 745 select HAVE_SCHED_CLOCK
746 select TICK_ONESHOT 746 select TICK_ONESHOT
747 select ARCH_REQUIRE_GPIOLIB 747 select ARCH_REQUIRE_GPIOLIB
diff --git a/arch/arm/mach-pxa/devices.c b/arch/arm/mach-pxa/devices.c
index 5bc13121eac5..18fd177073f4 100644
--- a/arch/arm/mach-pxa/devices.c
+++ b/arch/arm/mach-pxa/devices.c
@@ -415,9 +415,29 @@ static struct resource pxa_rtc_resources[] = {
415 }, 415 },
416}; 416};
417 417
418static struct resource sa1100_rtc_resources[] = {
419 [0] = {
420 .start = 0x40900000,
421 .end = 0x409000ff,
422 .flags = IORESOURCE_MEM,
423 },
424 [1] = {
425 .start = IRQ_RTC1Hz,
426 .end = IRQ_RTC1Hz,
427 .flags = IORESOURCE_IRQ,
428 },
429 [2] = {
430 .start = IRQ_RTCAlrm,
431 .end = IRQ_RTCAlrm,
432 .flags = IORESOURCE_IRQ,
433 },
434};
435
418struct platform_device sa1100_device_rtc = { 436struct platform_device sa1100_device_rtc = {
419 .name = "sa1100-rtc", 437 .name = "sa1100-rtc",
420 .id = -1, 438 .id = -1,
439 .num_resources = ARRAY_SIZE(sa1100_rtc_resources),
440 .resource = sa1100_rtc_resources,
421}; 441};
422 442
423struct platform_device pxa_device_rtc = { 443struct platform_device pxa_device_rtc = {
diff --git a/arch/arm/mach-pxa/pxa25x.c b/arch/arm/mach-pxa/pxa25x.c
index 8a775f631c55..adf058fa97ee 100644
--- a/arch/arm/mach-pxa/pxa25x.c
+++ b/arch/arm/mach-pxa/pxa25x.c
@@ -210,6 +210,7 @@ static struct clk_lookup pxa25x_clkregs[] = {
210 INIT_CLKREG(&clk_pxa25x_gpio12, NULL, "GPIO12_CLK"), 210 INIT_CLKREG(&clk_pxa25x_gpio12, NULL, "GPIO12_CLK"),
211 INIT_CLKREG(&clk_pxa25x_mem, "pxa2xx-pcmcia", NULL), 211 INIT_CLKREG(&clk_pxa25x_mem, "pxa2xx-pcmcia", NULL),
212 INIT_CLKREG(&clk_dummy, "pxa-gpio", NULL), 212 INIT_CLKREG(&clk_dummy, "pxa-gpio", NULL),
213 INIT_CLKREG(&clk_dummy, "sa1100-rtc", NULL),
213}; 214};
214 215
215static struct clk_lookup pxa25x_hwuart_clkreg = 216static struct clk_lookup pxa25x_hwuart_clkreg =
diff --git a/arch/arm/mach-pxa/pxa27x.c b/arch/arm/mach-pxa/pxa27x.c
index 6c49e66057e3..180bd8675d4b 100644
--- a/arch/arm/mach-pxa/pxa27x.c
+++ b/arch/arm/mach-pxa/pxa27x.c
@@ -231,6 +231,7 @@ static struct clk_lookup pxa27x_clkregs[] = {
231 INIT_CLKREG(&clk_pxa27x_memc, NULL, "MEMCLK"), 231 INIT_CLKREG(&clk_pxa27x_memc, NULL, "MEMCLK"),
232 INIT_CLKREG(&clk_pxa27x_mem, "pxa2xx-pcmcia", NULL), 232 INIT_CLKREG(&clk_pxa27x_mem, "pxa2xx-pcmcia", NULL),
233 INIT_CLKREG(&clk_dummy, "pxa-gpio", NULL), 233 INIT_CLKREG(&clk_dummy, "pxa-gpio", NULL),
234 INIT_CLKREG(&clk_dummy, "sa1100-rtc", NULL),
234}; 235};
235 236
236#ifdef CONFIG_PM 237#ifdef CONFIG_PM
diff --git a/arch/arm/mach-pxa/pxa300.c b/arch/arm/mach-pxa/pxa300.c
index 40bb16501d86..0388eda7878a 100644
--- a/arch/arm/mach-pxa/pxa300.c
+++ b/arch/arm/mach-pxa/pxa300.c
@@ -89,6 +89,7 @@ static DEFINE_PXA3_CKEN(gcu, PXA300_GCU, 0, 0);
89static struct clk_lookup common_clkregs[] = { 89static struct clk_lookup common_clkregs[] = {
90 INIT_CLKREG(&clk_common_nand, "pxa3xx-nand", NULL), 90 INIT_CLKREG(&clk_common_nand, "pxa3xx-nand", NULL),
91 INIT_CLKREG(&clk_gcu, "pxa3xx-gcu", NULL), 91 INIT_CLKREG(&clk_gcu, "pxa3xx-gcu", NULL),
92 INIT_CLKREG(&clk_dummy, "sa1100-rtc", NULL),
92}; 93};
93 94
94static DEFINE_PXA3_CKEN(pxa310_mmc3, MMC3, 19500000, 0); 95static DEFINE_PXA3_CKEN(pxa310_mmc3, MMC3, 19500000, 0);
diff --git a/arch/arm/mach-pxa/pxa320.c b/arch/arm/mach-pxa/pxa320.c
index 8d614ecd8e99..d487e1ff4c9a 100644
--- a/arch/arm/mach-pxa/pxa320.c
+++ b/arch/arm/mach-pxa/pxa320.c
@@ -83,6 +83,7 @@ static DEFINE_PXA3_CKEN(gcu, PXA320_GCU, 0, 0);
83static struct clk_lookup pxa320_clkregs[] = { 83static struct clk_lookup pxa320_clkregs[] = {
84 INIT_CLKREG(&clk_pxa320_nand, "pxa3xx-nand", NULL), 84 INIT_CLKREG(&clk_pxa320_nand, "pxa3xx-nand", NULL),
85 INIT_CLKREG(&clk_gcu, "pxa3xx-gcu", NULL), 85 INIT_CLKREG(&clk_gcu, "pxa3xx-gcu", NULL),
86 INIT_CLKREG(&clk_dummy, "sa1100-rtc", NULL),
86}; 87};
87 88
88static int __init pxa320_init(void) 89static int __init pxa320_init(void)
diff --git a/arch/arm/mach-pxa/pxa3xx.c b/arch/arm/mach-pxa/pxa3xx.c
index 4f402afa6609..f107c71c7589 100644
--- a/arch/arm/mach-pxa/pxa3xx.c
+++ b/arch/arm/mach-pxa/pxa3xx.c
@@ -67,6 +67,7 @@ static struct clk_lookup pxa3xx_clkregs[] = {
67 INIT_CLKREG(&clk_pxa3xx_pout, NULL, "CLK_POUT"), 67 INIT_CLKREG(&clk_pxa3xx_pout, NULL, "CLK_POUT"),
68 /* Power I2C clock is always on */ 68 /* Power I2C clock is always on */
69 INIT_CLKREG(&clk_dummy, "pxa3xx-pwri2c.1", NULL), 69 INIT_CLKREG(&clk_dummy, "pxa3xx-pwri2c.1", NULL),
70 INIT_CLKREG(&clk_dummy, "sa1100-rtc", NULL),
70 INIT_CLKREG(&clk_pxa3xx_lcd, "pxa2xx-fb", NULL), 71 INIT_CLKREG(&clk_pxa3xx_lcd, "pxa2xx-fb", NULL),
71 INIT_CLKREG(&clk_pxa3xx_camera, NULL, "CAMCLK"), 72 INIT_CLKREG(&clk_pxa3xx_camera, NULL, "CAMCLK"),
72 INIT_CLKREG(&clk_pxa3xx_ac97, NULL, "AC97CLK"), 73 INIT_CLKREG(&clk_pxa3xx_ac97, NULL, "AC97CLK"),
diff --git a/arch/arm/mach-pxa/pxa95x.c b/arch/arm/mach-pxa/pxa95x.c
index d082a583df78..fccc644702e6 100644
--- a/arch/arm/mach-pxa/pxa95x.c
+++ b/arch/arm/mach-pxa/pxa95x.c
@@ -217,6 +217,7 @@ static struct clk_lookup pxa95x_clkregs[] = {
217 INIT_CLKREG(&clk_pxa95x_pout, NULL, "CLK_POUT"), 217 INIT_CLKREG(&clk_pxa95x_pout, NULL, "CLK_POUT"),
218 /* Power I2C clock is always on */ 218 /* Power I2C clock is always on */
219 INIT_CLKREG(&clk_dummy, "pxa3xx-pwri2c.1", NULL), 219 INIT_CLKREG(&clk_dummy, "pxa3xx-pwri2c.1", NULL),
220 INIT_CLKREG(&clk_dummy, "sa1100-rtc", NULL),
220 INIT_CLKREG(&clk_pxa95x_lcd, "pxa2xx-fb", NULL), 221 INIT_CLKREG(&clk_pxa95x_lcd, "pxa2xx-fb", NULL),
221 INIT_CLKREG(&clk_pxa95x_ffuart, "pxa2xx-uart.0", NULL), 222 INIT_CLKREG(&clk_pxa95x_ffuart, "pxa2xx-uart.0", NULL),
222 INIT_CLKREG(&clk_pxa95x_btuart, "pxa2xx-uart.1", NULL), 223 INIT_CLKREG(&clk_pxa95x_btuart, "pxa2xx-uart.1", NULL),
diff --git a/arch/arm/mach-sa1100/clock.c b/arch/arm/mach-sa1100/clock.c
index dab3c6347a8f..d6df9f6c9f7e 100644
--- a/arch/arm/mach-sa1100/clock.c
+++ b/arch/arm/mach-sa1100/clock.c
@@ -11,17 +11,39 @@
11#include <linux/clk.h> 11#include <linux/clk.h>
12#include <linux/spinlock.h> 12#include <linux/spinlock.h>
13#include <linux/mutex.h> 13#include <linux/mutex.h>
14#include <linux/io.h>
15#include <linux/clkdev.h>
14 16
15#include <mach/hardware.h> 17#include <mach/hardware.h>
16 18
17/* 19struct clkops {
18 * Very simple clock implementation - we only have one clock to deal with. 20 void (*enable)(struct clk *);
19 */ 21 void (*disable)(struct clk *);
22 unsigned long (*getrate)(struct clk *);
23};
24
20struct clk { 25struct clk {
26 const struct clkops *ops;
27 unsigned long rate;
21 unsigned int enabled; 28 unsigned int enabled;
22}; 29};
23 30
24static void clk_gpio27_enable(void) 31#define INIT_CLKREG(_clk, _devname, _conname) \
32 { \
33 .clk = _clk, \
34 .dev_id = _devname, \
35 .con_id = _conname, \
36 }
37
38#define DEFINE_CLK(_name, _ops, _rate) \
39struct clk clk_##_name = { \
40 .ops = _ops, \
41 .rate = _rate, \
42 }
43
44static DEFINE_SPINLOCK(clocks_lock);
45
46static void clk_gpio27_enable(struct clk *clk)
25{ 47{
26 /* 48 /*
27 * First, set up the 3.6864MHz clock on GPIO 27 for the SA-1111: 49 * First, set up the 3.6864MHz clock on GPIO 27 for the SA-1111:
@@ -32,38 +54,22 @@ static void clk_gpio27_enable(void)
32 TUCR = TUCR_3_6864MHz; 54 TUCR = TUCR_3_6864MHz;
33} 55}
34 56
35static void clk_gpio27_disable(void) 57static void clk_gpio27_disable(struct clk *clk)
36{ 58{
37 TUCR = 0; 59 TUCR = 0;
38 GPDR &= ~GPIO_32_768kHz; 60 GPDR &= ~GPIO_32_768kHz;
39 GAFR &= ~GPIO_32_768kHz; 61 GAFR &= ~GPIO_32_768kHz;
40} 62}
41 63
42static struct clk clk_gpio27;
43
44static DEFINE_SPINLOCK(clocks_lock);
45
46struct clk *clk_get(struct device *dev, const char *id)
47{
48 const char *devname = dev_name(dev);
49
50 return strcmp(devname, "sa1111.0") ? ERR_PTR(-ENOENT) : &clk_gpio27;
51}
52EXPORT_SYMBOL(clk_get);
53
54void clk_put(struct clk *clk)
55{
56}
57EXPORT_SYMBOL(clk_put);
58
59int clk_enable(struct clk *clk) 64int clk_enable(struct clk *clk)
60{ 65{
61 unsigned long flags; 66 unsigned long flags;
62 67
63 spin_lock_irqsave(&clocks_lock, flags); 68 spin_lock_irqsave(&clocks_lock, flags);
64 if (clk->enabled++ == 0) 69 if (clk->enabled++ == 0)
65 clk_gpio27_enable(); 70 clk->ops->enable(clk);
66 spin_unlock_irqrestore(&clocks_lock, flags); 71 spin_unlock_irqrestore(&clocks_lock, flags);
72
67 return 0; 73 return 0;
68} 74}
69EXPORT_SYMBOL(clk_enable); 75EXPORT_SYMBOL(clk_enable);
@@ -76,13 +82,48 @@ void clk_disable(struct clk *clk)
76 82
77 spin_lock_irqsave(&clocks_lock, flags); 83 spin_lock_irqsave(&clocks_lock, flags);
78 if (--clk->enabled == 0) 84 if (--clk->enabled == 0)
79 clk_gpio27_disable(); 85 clk->ops->disable(clk);
80 spin_unlock_irqrestore(&clocks_lock, flags); 86 spin_unlock_irqrestore(&clocks_lock, flags);
81} 87}
82EXPORT_SYMBOL(clk_disable); 88EXPORT_SYMBOL(clk_disable);
83 89
84unsigned long clk_get_rate(struct clk *clk) 90unsigned long clk_get_rate(struct clk *clk)
85{ 91{
86 return 3686400; 92 unsigned long rate;
93
94 rate = clk->rate;
95 if (clk->ops->getrate)
96 rate = clk->ops->getrate(clk);
97
98 return rate;
87} 99}
88EXPORT_SYMBOL(clk_get_rate); 100EXPORT_SYMBOL(clk_get_rate);
101
102const struct clkops clk_gpio27_ops = {
103 .enable = clk_gpio27_enable,
104 .disable = clk_gpio27_disable,
105};
106
107static void clk_dummy_enable(struct clk *clk) { }
108static void clk_dummy_disable(struct clk *clk) { }
109
110const struct clkops clk_dummy_ops = {
111 .enable = clk_dummy_enable,
112 .disable = clk_dummy_disable,
113};
114
115static DEFINE_CLK(gpio27, &clk_gpio27_ops, 3686400);
116static DEFINE_CLK(dummy, &clk_dummy_ops, 0);
117
118static struct clk_lookup sa11xx_clkregs[] = {
119 INIT_CLKREG(&clk_gpio27, "sa1111.0", NULL),
120 INIT_CLKREG(&clk_dummy, "sa1100-rtc", NULL),
121};
122
123static int __init sa11xx_clk_init(void)
124{
125 clkdev_add_table(sa11xx_clkregs, ARRAY_SIZE(sa11xx_clkregs));
126 return 0;
127}
128
129postcore_initcall(sa11xx_clk_init);
diff --git a/arch/arm/mach-sa1100/generic.c b/arch/arm/mach-sa1100/generic.c
index 5fa5ae1f39e1..3eff179d4fd7 100644
--- a/arch/arm/mach-sa1100/generic.c
+++ b/arch/arm/mach-sa1100/generic.c
@@ -334,9 +334,29 @@ void sa11x0_register_irda(struct irda_platform_data *irda)
334 sa11x0_register_device(&sa11x0ir_device, irda); 334 sa11x0_register_device(&sa11x0ir_device, irda);
335} 335}
336 336
337static struct resource sa11x0rtc_resources[] = {
338 [0] = {
339 .start = 0x90010000,
340 .end = 0x900100ff,
341 .flags = IORESOURCE_MEM,
342 },
343 [1] = {
344 .start = IRQ_RTC1Hz,
345 .end = IRQ_RTC1Hz,
346 .flags = IORESOURCE_IRQ,
347 },
348 [2] = {
349 .start = IRQ_RTCAlrm,
350 .end = IRQ_RTCAlrm,
351 .flags = IORESOURCE_IRQ,
352 },
353};
354
337static struct platform_device sa11x0rtc_device = { 355static struct platform_device sa11x0rtc_device = {
338 .name = "sa1100-rtc", 356 .name = "sa1100-rtc",
339 .id = -1, 357 .id = -1,
358 .resource = sa11x0rtc_resources,
359 .num_resources = ARRAY_SIZE(sa11x0rtc_resources),
340}; 360};
341 361
342static struct platform_device *sa11x0_devices[] __initdata = { 362static struct platform_device *sa11x0_devices[] __initdata = {