add support for target 3c24xx (more known as Openmoko GTA02 "Freerunner") and merge it with the openmoko-target and the work Michael Buesch <mb> did

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@13609 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 154 insertions, 0 deletions

diff --git a/target/linux/s3c24xx/patches/0240-gta0x-add-minimal-GSM-flowcontrol.patch.patch b/target/linux/s3c24xx/patches/0240-gta0x-add-minimal-GSM-flowcontrol.patch.patch
new file mode 100755
index 0000000000..e3e3c571de
--- /dev/null
+++ b/target/linux/s3c24xx/patches/0240-gta0x-add-minimal-GSM-flowcontrol.patch.patch
@@ -0,0 +1,154 @@
+From 5a0021aed270b0d98a902d9c8eb19b395dc186ae Mon Sep 17 00:00:00 2001
+From: Mike Westerhof <mwester@dls.net>
+Date: Sun, 10 Aug 2008 09:12:55 +0100
+Subject: [PATCH] gta0x-add-minimal-GSM-flowcontrol.patch
+
+    Add the basic GSM flowcontrol code.
+
+Signed-off-by: Mike Westerhof <mwester@dls.net>
+---
+ arch/arm/mach-s3c2410/mach-gta01.c     |    3 ++
+ arch/arm/mach-s3c2440/mach-gta02.c     |    3 ++
+ arch/arm/plat-s3c24xx/neo1973_pm_gsm.c |   36 ++++++++++++++++++++++++++++++++
+ 3 files changed, 42 insertions(+), 0 deletions(-)
+
+diff --git a/arch/arm/mach-s3c2410/mach-gta01.c b/arch/arm/mach-s3c2410/mach-gta01.c
+index e518de7..f3f87cf 100644
+--- a/arch/arm/mach-s3c2410/mach-gta01.c
++++ b/arch/arm/mach-s3c2410/mach-gta01.c
+@@ -657,9 +657,12 @@ static void __init gta01_map_io(void)
+ 	s3c24xx_init_uarts(gta01_uartcfgs, ARRAY_SIZE(gta01_uartcfgs));
+ }
+ 
++extern int gta_gsm_interrupts;
++
+ static irqreturn_t gta01_modem_irq(int irq, void *param)
+ {
+ 	printk(KERN_DEBUG "GSM wakeup interrupt (IRQ %d)\n", irq);
++	gta_gsm_interrupts++;
+ 	return IRQ_HANDLED;
+ }
+ 
+diff --git a/arch/arm/mach-s3c2440/mach-gta02.c b/arch/arm/mach-s3c2440/mach-gta02.c
+index aeedd42..b37d1c4 100644
+--- a/arch/arm/mach-s3c2440/mach-gta02.c
++++ b/arch/arm/mach-s3c2440/mach-gta02.c
+@@ -1531,9 +1531,12 @@ static void __init gta02_map_io(void)
+ 	s3c24xx_init_uarts(gta02_uartcfgs, ARRAY_SIZE(gta02_uartcfgs));
+ }
+ 
++extern int gta_gsm_interrupts;
++
+ static irqreturn_t gta02_modem_irq(int irq, void *param)
+ {
+ 	printk(KERN_DEBUG "modem wakeup interrupt\n");
++	gta_gsm_interrupts++;
+ 	return IRQ_HANDLED;
+ }
+ 
+diff --git a/arch/arm/plat-s3c24xx/neo1973_pm_gsm.c b/arch/arm/plat-s3c24xx/neo1973_pm_gsm.c
+index de83939..901f8fb 100644
+--- a/arch/arm/plat-s3c24xx/neo1973_pm_gsm.c
++++ b/arch/arm/plat-s3c24xx/neo1973_pm_gsm.c
+@@ -34,6 +34,9 @@
+ extern void s3c24xx_serial_register_resume_dependency(struct resume_dependency *
+ 					     resume_dependency, int uart_index);
+ 
++int gta_gsm_interrupts;
++EXPORT_SYMBOL(gta_gsm_interrupts);
++
+ struct gta01pm_priv {
+ 	int gpio_ngsm_en;
+         int gpio_ndl_gsm;
+@@ -80,6 +83,9 @@ static ssize_t gsm_read(struct device *dev, struct device_attribute *attr,
+ 			if (!s3c2410_gpio_getpin(GTA02_GPIO_nDL_GSM))
+ 				goto out_1;
+ 		}
++	} else if (!strcmp(attr->attr.name, "flowcontrolled")) {
++		if (s3c2410_gpio_getcfg(S3C2410_GPH1) == S3C2410_GPIO_OUTPUT)
++			goto out_1;
+ 	}
+ 
+ 	return strlcpy(buf, "0\n", 3);
+@@ -176,6 +182,13 @@ static ssize_t gsm_write(struct device *dev, struct device_attribute *attr,
+ 			gta01_gsm.gpio_ndl_gsm = !on;
+ 			s3c2410_gpio_setpin(GTA02_GPIO_nDL_GSM, !on);
+ 		}
++	} else if (!strcmp(attr->attr.name, "flowcontrolled")) {
++		if (on) {
++			gta_gsm_interrupts = 0;
++			s3c2410_gpio_setpin(S3C2410_GPH1, 1);
++			s3c2410_gpio_cfgpin(S3C2410_GPH1, S3C2410_GPH1_OUTP);
++		} else
++			s3c2410_gpio_cfgpin(S3C2410_GPH1, S3C2410_GPH1_nRTS0);
+ 	}
+ 
+ 	return count;
+@@ -184,6 +197,7 @@ static ssize_t gsm_write(struct device *dev, struct device_attribute *attr,
+ static DEVICE_ATTR(power_on, 0644, gsm_read, gsm_write);
+ static DEVICE_ATTR(reset, 0644, gsm_read, gsm_write);
+ static DEVICE_ATTR(download, 0644, gsm_read, gsm_write);
++static DEVICE_ATTR(flowcontrolled, 0644, gsm_read, gsm_write);
+ 
+ #ifdef CONFIG_PM
+ 
+@@ -193,6 +207,11 @@ static int gta01_gsm_suspend(struct platform_device *pdev, pm_message_t state)
+ 	/* GPIO state is saved/restored by S3C2410 core GPIO driver, so we
+ 	 * don't need to do much here. */
+ 
++	/* If flowcontrol asserted, abort if GSM already interrupted */
++	if (s3c2410_gpio_getcfg(S3C2410_GPH1) == S3C2410_GPIO_OUTPUT) {
++		if (gta_gsm_interrupts)
++			goto busy;
++	}
+ 
+ 	/* disable DL GSM to prevent jack_insert becoming 'floating' */
+ 	if (machine_is_neo1973_gta02())
+@@ -205,6 +224,20 @@ static int gta01_gsm_suspend(struct platform_device *pdev, pm_message_t state)
+ 	s3c24xx_serial_register_resume_dependency(&resume_dep_gsm_uart, 0);
+ 
+ 	return 0;
++
++busy:
++	return -EBUSY;
++}
++
++static int
++gta01_gsm_suspend_late(struct platform_device *pdev, pm_message_t state)
++{
++	/* Last chance: abort if GSM already interrupted */
++	if (s3c2410_gpio_getcfg(S3C2410_GPH1) == S3C2410_GPIO_OUTPUT) {
++		if (gta_gsm_interrupts)
++			return -EBUSY;
++	}
++	return 0;
+ }
+ 
+ static int gta01_gsm_resume(struct platform_device *pdev)
+@@ -229,6 +262,7 @@ static int gta01_gsm_resume(struct platform_device *pdev)
+ }
+ #else
+ #define gta01_gsm_suspend	NULL
++#define gta01_gsm_suspend_late	NULL
+ #define gta01_gsm_resume	NULL
+ #endif
+ 
+@@ -236,6 +270,7 @@ static struct attribute *gta01_gsm_sysfs_entries[] = {
+ 	&dev_attr_power_on.attr,
+ 	&dev_attr_reset.attr,
+ 	&dev_attr_download.attr,
++	&dev_attr_flowcontrolled.attr,
+ 	NULL
+ };
+ 
+@@ -315,6 +350,7 @@ static struct platform_driver gta01_gsm_driver = {
+ 	.probe		= gta01_gsm_probe,
+ 	.remove		= gta01_gsm_remove,
+ 	.suspend	= gta01_gsm_suspend,
++	.suspend_late	= gta01_gsm_suspend_late,
+ 	.resume		= gta01_gsm_resume,
+ 	.driver		= {
+ 		.name		= "neo1973-pm-gsm",
+-- 
+1.5.6.3
+