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authorLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-12 13:28:54 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-12 13:28:54 -0700
commit0b9062f6b57a87f22309c6b920a51aaa66ce2a13 (patch)
treecbef02e5b1bfc1557a53f7d45c7d632fb1f91ae5 /drivers
parent82afee684fe3badaf5ee3fc5b6fda687d558bfb5 (diff)
parentde61b542b822746d1498718c40f5dd740da49629 (diff)
downloadlinux-0b9062f6b57a87f22309c6b920a51aaa66ce2a13.tar.bz2
Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: [MIPS] Rename PC speaker code [MIPS] Don't use genrtc. [MIPS] Remove unused time.c for swarm [MIPS] Sparse: Use NULL for pointer [MIPS] Fix a sparse warning in arch/mips/pci/pci.c [MIPS] SMTC: Interrupt mask backstop hack [MIPS] separate platform_device registration for VR41xx RTC [MIPS] Separate platform_device registration for VR41xx GPIO [MIPS] MIPSsim: Fix build. [MIPS] separate platform_device registration for VR41xx serial interface [MIPS] Include cacheflush.h in uncache.c [MIPS] Cleanup tlbdebug.h [MIPS] Change names of local variables to silence sparse (part 2) [MIPS] Workaround for a sparse warning in include/asm-mips/io.h [MIPS] RM: Use only phyiscal address for 82596 and 53c710 [MIPS] Hydrogen3: Remove remaining bits of code. [MIPS] DEC: Fix modpost warning. Revert "[MIPS] DEC: Fix modpost warning." [MIPS] Fix resume for 64K page size on R4000 class processors.
Diffstat (limited to 'drivers')
-rw-r--r--drivers/char/Kconfig2
-rw-r--r--drivers/char/vr41xx_giu.c132
-rw-r--r--drivers/rtc/rtc-vr41xx.c186
-rw-r--r--drivers/serial/vr41xx_siu.c143
-rw-r--r--drivers/tc/zs.c22
5 files changed, 148 insertions, 337 deletions
diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index ef683ebd367c..a31c6d2c061f 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -815,7 +815,7 @@ config SGI_IP27_RTC
config GEN_RTC
tristate "Generic /dev/rtc emulation"
- depends on RTC!=y && !IA64 && !ARM && !M32R && !SPARC && !FRV && !S390 && !SUPERH
+ depends on RTC!=y && !IA64 && !ARM && !M32R && !MIPS && !SPARC && !FRV && !S390 && !SUPERH
---help---
If you say Y here and create a character special file /dev/rtc with
major number 10 and minor number 135 using mknod ("man mknod"), you
diff --git a/drivers/char/vr41xx_giu.c b/drivers/char/vr41xx_giu.c
index 0cea8d4907df..e5ed09192be8 100644
--- a/drivers/char/vr41xx_giu.c
+++ b/drivers/char/vr41xx_giu.c
@@ -19,18 +19,17 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
-#include <linux/platform_device.h>
#include <linux/errno.h>
#include <linux/fs.h>
#include <linux/init.h>
-#include <linux/irq.h>
#include <linux/interrupt.h>
+#include <linux/irq.h>
#include <linux/kernel.h>
#include <linux/module.h>
+#include <linux/platform_device.h>
#include <linux/spinlock.h>
#include <linux/types.h>
-#include <asm/cpu.h>
#include <asm/io.h>
#include <asm/vr41xx/giu.h>
#include <asm/vr41xx/irq.h>
@@ -44,18 +43,6 @@ static int major; /* default is dynamic major device number */
module_param(major, int, 0);
MODULE_PARM_DESC(major, "Major device number");
-#define GIU_TYPE1_START 0x0b000100UL
-#define GIU_TYPE1_SIZE 0x20UL
-
-#define GIU_TYPE2_START 0x0f000140UL
-#define GIU_TYPE2_SIZE 0x20UL
-
-#define GIU_TYPE3_START 0x0f000140UL
-#define GIU_TYPE3_SIZE 0x28UL
-
-#define GIU_PULLUPDOWN_START 0x0b0002e0UL
-#define GIU_PULLUPDOWN_SIZE 0x04UL
-
#define GIUIOSELL 0x00
#define GIUIOSELH 0x02
#define GIUPIODL 0x04
@@ -89,8 +76,6 @@ MODULE_PARM_DESC(major, "Major device number");
#define GPIO_HAS_INTERRUPT_EDGE_SELECT 0x0100
static spinlock_t giu_lock;
-static struct resource *giu_resource1;
-static struct resource *giu_resource2;
static unsigned long giu_flags;
static unsigned int giu_nr_pins;
@@ -234,7 +219,7 @@ void vr41xx_set_irq_trigger(unsigned int pin, irq_trigger_t trigger, irq_signal_
giu_set(GIUINTHTSELL, mask);
else
giu_clear(GIUINTHTSELL, mask);
- if (current_cpu_data.cputype == CPU_VR4133) {
+ if (giu_flags & GPIO_HAS_INTERRUPT_EDGE_SELECT) {
switch (trigger) {
case IRQ_TRIGGER_EDGE_FALLING:
giu_set(GIUFEDGEINHL, mask);
@@ -269,7 +254,7 @@ void vr41xx_set_irq_trigger(unsigned int pin, irq_trigger_t trigger, irq_signal_
giu_set(GIUINTHTSELH, mask);
else
giu_clear(GIUINTHTSELH, mask);
- if (current_cpu_data.cputype == CPU_VR4133) {
+ if (giu_flags & GPIO_HAS_INTERRUPT_EDGE_SELECT) {
switch (trigger) {
case IRQ_TRIGGER_EDGE_FALLING:
giu_set(GIUFEDGEINHH, mask);
@@ -298,7 +283,6 @@ void vr41xx_set_irq_trigger(unsigned int pin, irq_trigger_t trigger, irq_signal_
giu_write(GIUINTSTATH, mask);
}
}
-
EXPORT_SYMBOL_GPL(vr41xx_set_irq_trigger);
void vr41xx_set_irq_level(unsigned int pin, irq_level_t level)
@@ -321,7 +305,6 @@ void vr41xx_set_irq_level(unsigned int pin, irq_level_t level)
giu_write(GIUINTSTATH, mask);
}
}
-
EXPORT_SYMBOL_GPL(vr41xx_set_irq_level);
gpio_data_t vr41xx_gpio_get_pin(unsigned int pin)
@@ -350,7 +333,6 @@ gpio_data_t vr41xx_gpio_get_pin(unsigned int pin)
return GPIO_DATA_LOW;
}
-
EXPORT_SYMBOL_GPL(vr41xx_gpio_get_pin);
int vr41xx_gpio_set_pin(unsigned int pin, gpio_data_t data)
@@ -388,7 +370,6 @@ int vr41xx_gpio_set_pin(unsigned int pin, gpio_data_t data)
return 0;
}
-
EXPORT_SYMBOL_GPL(vr41xx_gpio_set_pin);
int vr41xx_gpio_set_direction(unsigned int pin, gpio_direction_t dir)
@@ -438,7 +419,6 @@ int vr41xx_gpio_set_direction(unsigned int pin, gpio_direction_t dir)
return 0;
}
-
EXPORT_SYMBOL_GPL(vr41xx_gpio_set_direction);
int vr41xx_gpio_pullupdown(unsigned int pin, gpio_pull_t pull)
@@ -477,7 +457,6 @@ int vr41xx_gpio_pullupdown(unsigned int pin, gpio_pull_t pull)
return 0;
}
-
EXPORT_SYMBOL_GPL(vr41xx_gpio_pullupdown);
static ssize_t gpio_read(struct file *file, char __user *buf, size_t len,
@@ -596,61 +575,40 @@ static const struct file_operations gpio_fops = {
static int __devinit giu_probe(struct platform_device *dev)
{
- unsigned long start, size, flags = 0;
- unsigned int nr_pins = 0, trigger, i, pin;
- struct resource *res1, *res2 = NULL;
- void *base;
+ struct resource *res;
+ unsigned int trigger, i, pin;
struct irq_chip *chip;
- int retval;
-
- switch (current_cpu_data.cputype) {
- case CPU_VR4111:
- case CPU_VR4121:
- start = GIU_TYPE1_START;
- size = GIU_TYPE1_SIZE;
- flags = GPIO_HAS_PULLUPDOWN_IO;
- nr_pins = 50;
+ int irq, retval;
+
+ switch (dev->id) {
+ case GPIO_50PINS_PULLUPDOWN:
+ giu_flags = GPIO_HAS_PULLUPDOWN_IO;
+ giu_nr_pins = 50;
break;
- case CPU_VR4122:
- case CPU_VR4131:
- start = GIU_TYPE2_START;
- size = GIU_TYPE2_SIZE;
- nr_pins = 36;
+ case GPIO_36PINS:
+ giu_nr_pins = 36;
break;
- case CPU_VR4133:
- start = GIU_TYPE3_START;
- size = GIU_TYPE3_SIZE;
- flags = GPIO_HAS_INTERRUPT_EDGE_SELECT;
- nr_pins = 48;
+ case GPIO_48PINS_EDGE_SELECT:
+ giu_flags = GPIO_HAS_INTERRUPT_EDGE_SELECT;
+ giu_nr_pins = 48;
break;
default:
+ printk(KERN_ERR "GIU: unknown ID %d\n", dev->id);
return -ENODEV;
}
- res1 = request_mem_region(start, size, "GIU");
- if (res1 == NULL)
+ res = platform_get_resource(dev, IORESOURCE_MEM, 0);
+ if (!res)
return -EBUSY;
- base = ioremap(start, size);
- if (base == NULL) {
- release_resource(res1);
+ giu_base = ioremap(res->start, res->end - res->start + 1);
+ if (!giu_base)
return -ENOMEM;
- }
-
- if (flags & GPIO_HAS_PULLUPDOWN_IO) {
- res2 = request_mem_region(GIU_PULLUPDOWN_START, GIU_PULLUPDOWN_SIZE, "GIU");
- if (res2 == NULL) {
- iounmap(base);
- release_resource(res1);
- return -EBUSY;
- }
- }
retval = register_chrdev(major, "GIU", &gpio_fops);
if (retval < 0) {
- iounmap(base);
- release_resource(res1);
- release_resource(res2);
+ iounmap(giu_base);
+ giu_base = NULL;
return retval;
}
@@ -660,11 +618,6 @@ static int __devinit giu_probe(struct platform_device *dev)
}
spin_lock_init(&giu_lock);
- giu_base = base;
- giu_resource1 = res1;
- giu_resource2 = res2;
- giu_flags = flags;
- giu_nr_pins = nr_pins;
giu_write(GIUINTENL, 0);
giu_write(GIUINTENH, 0);
@@ -685,22 +638,23 @@ static int __devinit giu_probe(struct platform_device *dev)
}
- return cascade_irq(GIUINT_IRQ, giu_get_irq);
+ irq = platform_get_irq(dev, 0);
+ if (irq < 0 || irq >= NR_IRQS)
+ return -EBUSY;
+
+ return cascade_irq(irq, giu_get_irq);
}
static int __devexit giu_remove(struct platform_device *dev)
{
- iounmap(giu_base);
-
- release_resource(giu_resource1);
- if (giu_flags & GPIO_HAS_PULLUPDOWN_IO)
- release_resource(giu_resource2);
+ if (giu_base) {
+ iounmap(giu_base);
+ giu_base = NULL;
+ }
return 0;
}
-static struct platform_device *giu_platform_device;
-
static struct platform_driver giu_device_driver = {
.probe = giu_probe,
.remove = __devexit_p(giu_remove),
@@ -712,30 +666,12 @@ static struct platform_driver giu_device_driver = {
static int __init vr41xx_giu_init(void)
{
- int retval;
-
- giu_platform_device = platform_device_alloc("GIU", -1);
- if (!giu_platform_device)
- return -ENOMEM;
-
- retval = platform_device_add(giu_platform_device);
- if (retval < 0) {
- platform_device_put(giu_platform_device);
- return retval;
- }
-
- retval = platform_driver_register(&giu_device_driver);
- if (retval < 0)
- platform_device_unregister(giu_platform_device);
-
- return retval;
+ return platform_driver_register(&giu_device_driver);
}
static void __exit vr41xx_giu_exit(void)
{
platform_driver_unregister(&giu_device_driver);
-
- platform_device_unregister(giu_platform_device);
}
module_init(vr41xx_giu_init);
diff --git a/drivers/rtc/rtc-vr41xx.c b/drivers/rtc/rtc-vr41xx.c
index af7596ef29e2..ce2f78de7a80 100644
--- a/drivers/rtc/rtc-vr41xx.c
+++ b/drivers/rtc/rtc-vr41xx.c
@@ -17,10 +17,11 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
+#include <linux/err.h>
#include <linux/fs.h>
#include <linux/init.h>
#include <linux/ioport.h>
-#include <linux/irq.h>
+#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/rtc.h>
@@ -30,25 +31,11 @@
#include <asm/div64.h>
#include <asm/io.h>
#include <asm/uaccess.h>
-#include <asm/vr41xx/irq.h>
MODULE_AUTHOR("Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>");
MODULE_DESCRIPTION("NEC VR4100 series RTC driver");
MODULE_LICENSE("GPL");
-#define RTC1_TYPE1_START 0x0b0000c0UL
-#define RTC1_TYPE1_END 0x0b0000dfUL
-#define RTC2_TYPE1_START 0x0b0001c0UL
-#define RTC2_TYPE1_END 0x0b0001dfUL
-
-#define RTC1_TYPE2_START 0x0f000100UL
-#define RTC1_TYPE2_END 0x0f00011fUL
-#define RTC2_TYPE2_START 0x0f000120UL
-#define RTC2_TYPE2_END 0x0f00013fUL
-
-#define RTC1_SIZE 0x20
-#define RTC2_SIZE 0x20
-
/* RTC 1 registers */
#define ETIMELREG 0x00
#define ETIMEMREG 0x02
@@ -98,13 +85,8 @@ static char rtc_name[] = "RTC";
static unsigned long periodic_frequency;
static unsigned long periodic_count;
static unsigned int alarm_enabled;
-
-struct resource rtc_resource[2] = {
- { .name = rtc_name,
- .flags = IORESOURCE_MEM, },
- { .name = rtc_name,
- .flags = IORESOURCE_MEM, },
-};
+static int aie_irq = -1;
+static int pie_irq = -1;
static inline unsigned long read_elapsed_second(void)
{
@@ -150,8 +132,8 @@ static void vr41xx_rtc_release(struct device *dev)
spin_unlock_irq(&rtc_lock);
- disable_irq(ELAPSEDTIME_IRQ);
- disable_irq(RTCLONG1_IRQ);
+ disable_irq(aie_irq);
+ disable_irq(pie_irq);
}
static int vr41xx_rtc_read_time(struct device *dev, struct rtc_time *time)
@@ -209,14 +191,14 @@ static int vr41xx_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *wkalrm)
spin_lock_irq(&rtc_lock);
if (alarm_enabled)
- disable_irq(ELAPSEDTIME_IRQ);
+ disable_irq(aie_irq);
rtc1_write(ECMPLREG, (uint16_t)(alarm_sec << 15));
rtc1_write(ECMPMREG, (uint16_t)(alarm_sec >> 1));
rtc1_write(ECMPHREG, (uint16_t)(alarm_sec >> 17));
if (wkalrm->enabled)
- enable_irq(ELAPSEDTIME_IRQ);
+ enable_irq(aie_irq);
alarm_enabled = wkalrm->enabled;
@@ -234,7 +216,7 @@ static int vr41xx_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long
spin_lock_irq(&rtc_lock);
if (!alarm_enabled) {
- enable_irq(ELAPSEDTIME_IRQ);
+ enable_irq(aie_irq);
alarm_enabled = 1;
}
@@ -244,17 +226,17 @@ static int vr41xx_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long
spin_lock_irq(&rtc_lock);
if (alarm_enabled) {
- disable_irq(ELAPSEDTIME_IRQ);
+ disable_irq(aie_irq);
alarm_enabled = 0;
}
spin_unlock_irq(&rtc_lock);
break;
case RTC_PIE_ON:
- enable_irq(RTCLONG1_IRQ);
+ enable_irq(pie_irq);
break;
case RTC_PIE_OFF:
- disable_irq(RTCLONG1_IRQ);
+ disable_irq(pie_irq);
break;
case RTC_IRQP_READ:
return put_user(periodic_frequency, (unsigned long __user *)arg);
@@ -331,31 +313,37 @@ static const struct rtc_class_ops vr41xx_rtc_ops = {
static int __devinit rtc_probe(struct platform_device *pdev)
{
+ struct resource *res;
struct rtc_device *rtc;
- unsigned int irq;
int retval;
- if (pdev->num_resources != 2)
+ if (pdev->num_resources != 4)
return -EBUSY;
- rtc1_base = ioremap(pdev->resource[0].start, RTC1_SIZE);
- if (rtc1_base == NULL)
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res)
return -EBUSY;
- rtc2_base = ioremap(pdev->resource[1].start, RTC2_SIZE);
- if (rtc2_base == NULL) {
- iounmap(rtc1_base);
- rtc1_base = NULL;
+ rtc1_base = ioremap(res->start, res->end - res->start + 1);
+ if (!rtc1_base)
return -EBUSY;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+ if (!res) {
+ retval = -EBUSY;
+ goto err_rtc1_iounmap;
+ }
+
+ rtc2_base = ioremap(res->start, res->end - res->start + 1);
+ if (!rtc2_base) {
+ retval = -EBUSY;
+ goto err_rtc1_iounmap;
}
rtc = rtc_device_register(rtc_name, &pdev->dev, &vr41xx_rtc_ops, THIS_MODULE);
if (IS_ERR(rtc)) {
- iounmap(rtc1_base);
- iounmap(rtc2_base);
- rtc1_base = NULL;
- rtc2_base = NULL;
- return PTR_ERR(rtc);
+ retval = PTR_ERR(rtc);
+ goto err_iounmap_all;
}
spin_lock_irq(&rtc_lock);
@@ -368,35 +356,50 @@ static int __devinit rtc_probe(struct platform_device *pdev)
spin_unlock_irq(&rtc_lock);
- irq = ELAPSEDTIME_IRQ;
- retval = request_irq(irq, elapsedtime_interrupt, IRQF_DISABLED,
- "elapsed_time", pdev);
- if (retval == 0) {
- irq = RTCLONG1_IRQ;
- retval = request_irq(irq, rtclong1_interrupt, IRQF_DISABLED,
- "rtclong1", pdev);
+ aie_irq = platform_get_irq(pdev, 0);
+ if (aie_irq < 0 || aie_irq >= NR_IRQS) {
+ retval = -EBUSY;
+ goto err_device_unregister;
}
- if (retval < 0) {
- printk(KERN_ERR "rtc: IRQ%d is busy\n", irq);
- rtc_device_unregister(rtc);
- if (irq == RTCLONG1_IRQ)
- free_irq(ELAPSEDTIME_IRQ, NULL);
- iounmap(rtc1_base);
- iounmap(rtc2_base);
- rtc1_base = NULL;
- rtc2_base = NULL;
- return retval;
- }
+ retval = request_irq(aie_irq, elapsedtime_interrupt, IRQF_DISABLED,
+ "elapsed_time", pdev);
+ if (retval < 0)
+ goto err_device_unregister;
+
+ pie_irq = platform_get_irq(pdev, 1);
+ if (pie_irq < 0 || pie_irq >= NR_IRQS)
+ goto err_free_irq;
+
+ retval = request_irq(pie_irq, rtclong1_interrupt, IRQF_DISABLED,
+ "rtclong1", pdev);
+ if (retval < 0)
+ goto err_free_irq;
platform_set_drvdata(pdev, rtc);
- disable_irq(ELAPSEDTIME_IRQ);
- disable_irq(RTCLONG1_IRQ);
+ disable_irq(aie_irq);
+ disable_irq(pie_irq);
printk(KERN_INFO "rtc: Real Time Clock of NEC VR4100 series\n");
return 0;
+
+err_free_irq:
+ free_irq(aie_irq, pdev);
+
+err_device_unregister:
+ rtc_device_unregister(rtc);
+
+err_iounmap_all:
+ iounmap(rtc2_base);
+ rtc2_base = NULL;
+
+err_rtc1_iounmap:
+ iounmap(rtc1_base);
+ rtc1_base = NULL;
+
+ return retval;
}
static int __devexit rtc_remove(struct platform_device *pdev)
@@ -404,23 +407,21 @@ static int __devexit rtc_remove(struct platform_device *pdev)
struct rtc_device *rtc;
rtc = platform_get_drvdata(pdev);
- if (rtc != NULL)
+ if (rtc)
rtc_device_unregister(rtc);
platform_set_drvdata(pdev, NULL);
- free_irq(ELAPSEDTIME_IRQ, NULL);
- free_irq(RTCLONG1_IRQ, NULL);
- if (rtc1_base != NULL)
+ free_irq(aie_irq, pdev);
+ free_irq(pie_irq, pdev);
+ if (rtc1_base)
iounmap(rtc1_base);
- if (rtc2_base != NULL)
+ if (rtc2_base)
iounmap(rtc2_base);
return 0;
}
-static struct platform_device *rtc_platform_device;
-
static struct platform_driver rtc_platform_driver = {
.probe = rtc_probe,
.remove = __devexit_p(rtc_remove),
@@ -432,55 +433,12 @@ static struct platform_driver rtc_platform_driver = {
static int __init vr41xx_rtc_init(void)
{
- int retval;
-
- switch (current_cpu_data.cputype) {
- case CPU_VR4111:
- case CPU_VR4121:
- rtc_resource[0].start = RTC1_TYPE1_START;
- rtc_resource[0].end = RTC1_TYPE1_END;
- rtc_resource[1].start = RTC2_TYPE1_START;
- rtc_resource[1].end = RTC2_TYPE1_END;
- break;
- case CPU_VR4122:
- case CPU_VR4131:
- case CPU_VR4133:
- rtc_resource[0].start = RTC1_TYPE2_START;
- rtc_resource[0].end = RTC1_TYPE2_END;
- rtc_resource[1].start = RTC2_TYPE2_START;
- rtc_resource[1].end = RTC2_TYPE2_END;
- break;
- default:
- return -ENODEV;
- break;
- }
-
- rtc_platform_device = platform_device_alloc("RTC", -1);
- if (rtc_platform_device == NULL)
- return -ENOMEM;
-
- retval = platform_device_add_resources(rtc_platform_device,
- rtc_resource, ARRAY_SIZE(rtc_resource));
-
- if (retval == 0)
- retval = platform_device_add(rtc_platform_device);
-
- if (retval < 0) {
- platform_device_put(rtc_platform_device);
- return retval;
- }
-
- retval = platform_driver_register(&rtc_platform_driver);
- if (retval < 0)
- platform_device_unregister(rtc_platform_device);
-
- return retval;
+ return platform_driver_register(&rtc_platform_driver);
}
static void __exit vr41xx_rtc_exit(void)
{
platform_driver_unregister(&rtc_platform_driver);
- platform_device_unregister(rtc_platform_device);
}
module_init(vr41xx_rtc_init);
diff --git a/drivers/serial/vr41xx_siu.c b/drivers/serial/vr41xx_siu.c
index cf0e663b42ed..85309acb75f6 100644
--- a/drivers/serial/vr41xx_siu.c
+++ b/drivers/serial/vr41xx_siu.c
@@ -1,7 +1,7 @@
/*
* Driver for NEC VR4100 series Serial Interface Unit.
*
- * Copyright (C) 2004-2005 Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
+ * Copyright (C) 2004-2007 Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
*
* Based on drivers/serial/8250.c, by Russell King.
*
@@ -25,12 +25,12 @@
#endif
#include <linux/console.h>
-#include <linux/platform_device.h>
-#include <linux/err.h>
-#include <linux/ioport.h>
+#include <linux/errno.h>
#include <linux/init.h>
#include <linux/interrupt.h>
+#include <linux/ioport.h>
#include <linux/module.h>
+#include <linux/platform_device.h>
#include <linux/serial.h>
#include <linux/serial_core.h>
#include <linux/serial_reg.h>
@@ -38,11 +38,9 @@
#include <linux/tty_flip.h>
#include <asm/io.h>
-#include <asm/vr41xx/irq.h>
#include <asm/vr41xx/siu.h>
#include <asm/vr41xx/vr41xx.h>
-#define SIU_PORTS_MAX 2
#define SIU_BAUD_BASE 1152000
#define SIU_MAJOR 204
#define SIU_MINOR_BASE 82
@@ -60,32 +58,13 @@
#define IRUSESEL 0x02
#define SIRSEL 0x01
-struct siu_port {
- unsigned int type;
- unsigned int irq;
- unsigned long start;
-};
-
-static const struct siu_port siu_type1_ports[] = {
- { .type = PORT_VR41XX_SIU,
- .irq = SIU_IRQ,
- .start = 0x0c000000UL, },
-};
-
-#define SIU_TYPE1_NR_PORTS (sizeof(siu_type1_ports) / sizeof(struct siu_port))
-
-static const struct siu_port siu_type2_ports[] = {
- { .type = PORT_VR41XX_SIU,
- .irq = SIU_IRQ,
- .start = 0x0f000800UL, },
- { .type = PORT_VR41XX_DSIU,
- .irq = DSIU_IRQ,
- .start = 0x0f000820UL, },
+static struct uart_port siu_uart_ports[SIU_PORTS_MAX] = {
+ [0 ... SIU_PORTS_MAX-1] = {
+ .lock = __SPIN_LOCK_UNLOCKED(siu_uart_ports->lock),
+ .irq = -1,
+ },
};
-#define SIU_TYPE2_NR_PORTS (sizeof(siu_type2_ports) / sizeof(struct siu_port))
-
-static struct uart_port siu_uart_ports[SIU_PORTS_MAX];
static uint8_t lsr_break_flag[SIU_PORTS_MAX];
#define siu_read(port, offset) readb((port)->membase + (offset))
@@ -110,7 +89,6 @@ void vr41xx_select_siu_interface(siu_interface_t interface)
spin_unlock_irqrestore(&port->lock, flags);
}
-
EXPORT_SYMBOL_GPL(vr41xx_select_siu_interface);
void vr41xx_use_irda(irda_use_t use)
@@ -132,7 +110,6 @@ void vr41xx_use_irda(irda_use_t use)
spin_unlock_irqrestore(&port->lock, flags);
}
-
EXPORT_SYMBOL_GPL(vr41xx_use_irda);
void vr41xx_select_irda_module(irda_module_t module, irda_speed_t speed)
@@ -166,7 +143,6 @@ void vr41xx_select_irda_module(irda_module_t module, irda_speed_t speed)
spin_unlock_irqrestore(&port->lock, flags);
}
-
EXPORT_SYMBOL_GPL(vr41xx_select_irda_module);
static inline void siu_clear_fifo(struct uart_port *port)
@@ -177,21 +153,6 @@ static inline void siu_clear_fifo(struct uart_port *port)
siu_write(port, UART_FCR, 0);
}
-static inline int siu_probe_ports(void)
-{
- switch (current_cpu_data.cputype) {
- case CPU_VR4111:
- case CPU_VR4121:
- return SIU_TYPE1_NR_PORTS;
- case CPU_VR4122:
- case CPU_VR4131:
- case CPU_VR4133:
- return SIU_TYPE2_NR_PORTS;
- }
-
- return 0;
-}
-
static inline unsigned long siu_port_size(struct uart_port *port)
{
switch (port->type) {
@@ -206,21 +167,10 @@ static inline unsigned long siu_port_size(struct uart_port *port)
static inline unsigned int siu_check_type(struct uart_port *port)
{
- switch (current_cpu_data.cputype) {
- case CPU_VR4111:
- case CPU_VR4121:
- if (port->line == 0)
- return PORT_VR41XX_SIU;
- break;
- case CPU_VR4122:
- case CPU_VR4131:
- case CPU_VR4133:
- if (port->line == 0)
- return PORT_VR41XX_SIU;
- else if (port->line == 1)
- return PORT_VR41XX_DSIU;
- break;
- }
+ if (port->line == 0)
+ return PORT_VR41XX_SIU;
+ if (port->line == 1 && port->irq != -1)
+ return PORT_VR41XX_DSIU;
return PORT_UNKNOWN;
}
@@ -751,44 +701,34 @@ static struct uart_ops siu_uart_ops = {
.verify_port = siu_verify_port,
};
-static int siu_init_ports(void)
+static int siu_init_ports(struct platform_device *pdev)
{
- const struct siu_port *siu;
struct uart_port *port;
- int i, num;
+ struct resource *res;
+ int *type = pdev->dev.platform_data;
+ int i;
- switch (current_cpu_data.cputype) {
- case CPU_VR4111:
- case CPU_VR4121:
- siu = siu_type1_ports;
- break;
- case CPU_VR4122:
- case CPU_VR4131:
- case CPU_VR4133:
- siu = siu_type2_ports;
- break;
- default:
+ if (!type)
return 0;
- }
port = siu_uart_ports;
- num = siu_probe_ports();
- for (i = 0; i < num; i++) {
- spin_lock_init(&port->lock);
- port->irq = siu->irq;
+ for (i = 0; i < SIU_PORTS_MAX; i++) {
+ port->type = type[i];
+ if (port->type == PORT_UNKNOWN)
+ continue;
+ port->irq = platform_get_irq(pdev, i);
port->uartclk = SIU_BAUD_BASE * 16;
port->fifosize = 16;
port->regshift = 0;
port->iotype = UPIO_MEM;
port->flags = UPF_IOREMAP | UPF_BOOT_AUTOCONF;
- port->type = siu->type;
port->line = i;
- port->mapbase = siu->start;
- siu++;
+ res = platform_get_resource(pdev, IORESOURCE_MEM, i);
+ port->mapbase = res->start;
port++;
}
- return num;
+ return i;
}
#ifdef CONFIG_SERIAL_VR41XX_CONSOLE
@@ -883,13 +823,9 @@ static struct console siu_console = {
static int __devinit siu_console_init(void)
{
struct uart_port *port;
- int num, i;
-
- num = siu_init_ports();
- if (num <= 0)
- return -ENODEV;
+ int i;
- for (i = 0; i < num; i++) {
+ for (i = 0; i < SIU_PORTS_MAX; i++) {
port = &siu_uart_ports[i];
port->ops = &siu_uart_ops;
}
@@ -920,7 +856,7 @@ static int __devinit siu_probe(struct platform_device *dev)
struct uart_port *port;
int num, i, retval;
- num = siu_init_ports();
+ num = siu_init_ports(dev);
if (num <= 0)
return -ENODEV;
@@ -998,8 +934,6 @@ static int siu_resume(struct platform_device *dev)
return 0;
}
-static struct platform_device *siu_platform_device;
-
static struct platform_driver siu_device_driver = {
.probe = siu_probe,
.remove = __devexit_p(siu_remove),
@@ -1013,29 +947,12 @@ static struct platform_driver siu_device_driver = {
static int __init vr41xx_siu_init(void)
{
- int retval;
-
- siu_platform_device = platform_device_alloc("SIU", -1);
- if (!siu_platform_device)
- return -ENOMEM;
-
- retval = platform_device_add(siu_platform_device);
- if (retval < 0) {
- platform_device_put(siu_platform_device);
- return retval;
- }
-
- retval = platform_driver_register(&siu_device_driver);
- if (retval < 0)
- platform_device_unregister(siu_platform_device);
-
- return retval;
+ return platform_driver_register(&siu_device_driver);
}
static void __exit vr41xx_siu_exit(void)
{
platform_driver_unregister(&siu_device_driver);
- platform_device_unregister(siu_platform_device);
}
module_init(vr41xx_siu_init);
diff --git a/drivers/tc/zs.c b/drivers/tc/zs.c
index 4fff61b32dcb..ed979f13908a 100644
--- a/drivers/tc/zs.c
+++ b/drivers/tc/zs.c
@@ -136,14 +136,14 @@ struct dec_serial *zs_chain; /* list of all channels */
struct tty_struct zs_ttys[NUM_CHANNELS];
#ifdef CONFIG_SERIAL_DEC_CONSOLE
-static struct console sercons;
+static struct console zs_console;
#endif
#if defined(CONFIG_SERIAL_DEC_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ) && \
!defined(MODULE)
static unsigned long break_pressed; /* break, really ... */
#endif
-static unsigned char zs_init_regs[16] = {
+static unsigned char zs_init_regs[16] __initdata = {
0, /* write 0 */
0, /* write 1 */
0, /* write 2 */
@@ -383,7 +383,7 @@ static void receive_chars(struct dec_serial *info)
#if defined(CONFIG_SERIAL_DEC_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ) && \
!defined(MODULE)
- if (break_pressed && info->line == sercons.index) {
+ if (break_pressed && info->line == zs_console.index) {
/* Ignore the null char got when BREAK is removed. */
if (ch == 0)
continue;
@@ -446,7 +446,7 @@ static void status_handle(struct dec_serial *info)
if ((stat & BRK_ABRT) && !(info->read_reg_zero & BRK_ABRT)) {
#if defined(CONFIG_SERIAL_DEC_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ) && \
!defined(MODULE)
- if (info->line == sercons.index) {
+ if (info->line == zs_console.index) {
if (!break_pressed)
break_pressed = jiffies;
} else
@@ -1557,9 +1557,9 @@ static int rs_open(struct tty_struct *tty, struct file * filp)
}
#ifdef CONFIG_SERIAL_DEC_CONSOLE
- if (sercons.cflag && sercons.index == line) {
- tty->termios->c_cflag = sercons.cflag;
- sercons.cflag = 0;
+ if (zs_console.cflag && zs_console.index == line) {
+ tty->termios->c_cflag = zs_console.cflag;
+ zs_console.cflag = 0;
change_speed(info);
}
#endif
@@ -1581,7 +1581,7 @@ static void __init show_serial_version(void)
/* Initialize Z8530s zs_channels
*/
-static void probe_sccs(void)
+static void __init probe_sccs(void)
{
struct dec_serial **pp;
int i, n, n_chips = 0, n_channels, chip, channel;
@@ -1923,7 +1923,7 @@ static struct tty_driver *serial_console_device(struct console *c, int *index)
* - initialize the serial port
* Return non-zero if we didn't find a serial port.
*/
-static int serial_console_setup(struct console *co, char *options)
+static int __init serial_console_setup(struct console *co, char *options)
{
struct dec_serial *info;
int baud = 9600;
@@ -2069,7 +2069,7 @@ static int serial_console_setup(struct console *co, char *options)
return 0;
}
-static struct console sercons = {
+static struct console zs_console = {
.name = "ttyS",
.write = serial_console_write,
.device = serial_console_device,
@@ -2083,7 +2083,7 @@ static struct console sercons = {
*/
void __init zs_serial_console_init(void)
{
- register_console(&sercons);
+ register_console(&zs_console);
}
#endif /* ifdef CONFIG_SERIAL_DEC_CONSOLE */