mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-12-25 03:13:20 +02:00
[s3c24xx] Fix freerunner gsm modem pm.
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@16609 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
lars
parent
e98b808013
commit
5301e994ca
@ -19,7 +19,6 @@
|
||||
#include <linux/errno.h>
|
||||
#include <linux/interrupt.h>
|
||||
#include <linux/delay.h>
|
||||
#include <linux/gta02-shadow.h>
|
||||
|
||||
#include <mach/gpio.h>
|
||||
#include <asm/mach-types.h>
|
||||
@ -31,16 +30,36 @@
|
||||
#include <linux/mfd/pcf50633/gpio.h>
|
||||
#include <mach/regs-gpio.h>
|
||||
#include <mach/regs-gpioj.h>
|
||||
#include <linux/gta02-shadow.h>
|
||||
|
||||
int gta_gsm_interrupts;
|
||||
EXPORT_SYMBOL(gta_gsm_interrupts);
|
||||
|
||||
extern void s3c24xx_serial_console_set_silence(int);
|
||||
|
||||
struct gta02pm_priv {
|
||||
int gpio_ndl_gsm;
|
||||
struct console *con;
|
||||
};
|
||||
|
||||
static struct gta02pm_priv gta02_gsm;
|
||||
|
||||
static struct console *find_s3c24xx_console(void)
|
||||
{
|
||||
struct console *con;
|
||||
|
||||
acquire_console_sem();
|
||||
|
||||
for (con = console_drivers; con; con = con->next) {
|
||||
if (!strcmp(con->name, "ttySAC"))
|
||||
break;
|
||||
}
|
||||
|
||||
release_console_sem();
|
||||
|
||||
return con;
|
||||
}
|
||||
|
||||
static ssize_t gsm_read(struct device *dev, struct device_attribute *attr,
|
||||
char *buf)
|
||||
{
|
||||
@ -63,19 +82,30 @@ out_1:
|
||||
static void gsm_on_off(struct device *dev, int on)
|
||||
{
|
||||
if (!on) {
|
||||
/*
|
||||
* Do not drive into powered-down GSM side
|
||||
* GTA02 only, because on GTA01 maybe serial
|
||||
* is used otherwise.
|
||||
*/
|
||||
s3c2410_gpio_cfgpin(S3C2410_GPH1, S3C2410_GPIO_INPUT);
|
||||
s3c2410_gpio_cfgpin(S3C2410_GPH2, S3C2410_GPIO_INPUT);
|
||||
|
||||
pcf50633_gpio_set(gta02_pcf, PCF50633_GPIO2, 0);
|
||||
|
||||
if (gta02_gsm.con) {
|
||||
s3c24xx_serial_console_set_silence(0);
|
||||
console_start(gta02_gsm.con);
|
||||
|
||||
dev_dbg(dev, "powered down gta02 GSM, enabling "
|
||||
"serial console\n");
|
||||
}
|
||||
|
||||
return;
|
||||
}
|
||||
|
||||
if (gta02_gsm.con) {
|
||||
dev_dbg(dev, "powering up GSM, thus "
|
||||
"disconnecting serial console\n");
|
||||
|
||||
console_stop(gta02_gsm.con);
|
||||
s3c24xx_serial_console_set_silence(1);
|
||||
}
|
||||
|
||||
/* allow UART to talk to GSM side now we will power it */
|
||||
s3c2410_gpio_cfgpin(S3C2410_GPH1, S3C2410_GPH1_nRTS0);
|
||||
s3c2410_gpio_cfgpin(S3C2410_GPH2, S3C2410_GPH2_TXD0);
|
||||
@ -84,6 +114,10 @@ static void gsm_on_off(struct device *dev, int on)
|
||||
|
||||
msleep(100);
|
||||
|
||||
gta02_gpb_setpin(GTA02_GPIO_MODEM_ON, 1);
|
||||
msleep(500);
|
||||
gta02_gpb_setpin(GTA02_GPIO_MODEM_ON, 0);
|
||||
|
||||
/*
|
||||
* workaround for calypso firmware moko10 and earlier,
|
||||
* without this it will leave IRQ line high after
|
||||
@ -188,6 +222,11 @@ static int gta02_gsm_resume(struct platform_device *pdev)
|
||||
/* GPIO state is saved/restored by S3C2410 core GPIO driver, so we
|
||||
* don't need to do much here. */
|
||||
|
||||
/* Make sure that the kernel console on the serial port is still
|
||||
* disabled. FIXME: resume ordering race with serial driver! */
|
||||
if (gta02_gsm.con && s3c2410_gpio_getpin(GTA02_GPIO_MODEM_ON))
|
||||
console_stop(gta02_gsm.con);
|
||||
|
||||
s3c2410_gpio_setpin(GTA02_GPIO_nDL_GSM, gta02_gsm.gpio_ndl_gsm);
|
||||
|
||||
return 0;
|
||||
@ -222,13 +261,17 @@ static int __init gta02_gsm_probe(struct platform_device *pdev)
|
||||
case GTA02v6_SYSTEM_REV:
|
||||
break;
|
||||
default:
|
||||
/* TODO: fail */
|
||||
dev_warn(&pdev->dev, "Unknown Neo1973 Revision 0x%x, "
|
||||
dev_warn(&pdev->dev, "Unknown Freerunner Revision 0x%x, "
|
||||
"some PM features not available!!!\n",
|
||||
system_rev);
|
||||
break;
|
||||
}
|
||||
|
||||
gta02_gsm.con = find_s3c24xx_console();
|
||||
if (!gta02_gsm.con)
|
||||
dev_warn(&pdev->dev,
|
||||
"cannot find S3C24xx console driver\n");
|
||||
|
||||
/* note that download initially disabled, and enforce that */
|
||||
gta02_gsm.gpio_ndl_gsm = 1;
|
||||
s3c2410_gpio_setpin(GTA02_GPIO_nDL_GSM, 1);
|
||||
|
||||
40
target/linux/s3c24xx/patches-2.6.30/110-serial.patch
Normal file
40
target/linux/s3c24xx/patches-2.6.30/110-serial.patch
Normal file
@ -0,0 +1,40 @@
|
||||
diff -urNX /opt/Projects/openmoko-linux-2.6/orig/dontdiff /opt/Projects/openmoko-linux-2.6/orig/linux-2.6.29-rc3/drivers/serial/samsung.c /opt/Projects/openmoko-linux-2.6/drivers/serial/samsung.c
|
||||
--- a/drivers/serial/samsung.c 2009-01-28 19:49:30.000000000 +0100
|
||||
+++ b/drivers/serial/samsung.c 2009-05-16 13:25:47.000000000 +0200
|
||||
@@ -1208,6 +1355,13 @@
|
||||
#ifdef CONFIG_SERIAL_SAMSUNG_CONSOLE
|
||||
|
||||
static struct uart_port *cons_uart;
|
||||
+static int cons_silenced;
|
||||
+
|
||||
+void s3c24xx_serial_console_set_silence(int silenced)
|
||||
+{
|
||||
+ cons_silenced = silenced;
|
||||
+}
|
||||
+EXPORT_SYMBOL(s3c24xx_serial_console_set_silence);
|
||||
|
||||
static int
|
||||
s3c24xx_serial_console_txrdy(struct uart_port *port, unsigned int ufcon)
|
||||
@@ -1232,9 +1386,21 @@
|
||||
s3c24xx_serial_console_putchar(struct uart_port *port, int ch)
|
||||
{
|
||||
unsigned int ufcon = rd_regl(cons_uart, S3C2410_UFCON);
|
||||
+ unsigned int umcon = rd_regl(cons_uart, S3C2410_UMCON);
|
||||
+
|
||||
+ if (cons_silenced)
|
||||
+ return;
|
||||
+
|
||||
+ /* If auto HW flow control enabled, temporarily turn it off */
|
||||
+ if (umcon & S3C2410_UMCOM_AFC)
|
||||
+ wr_regl(port, S3C2410_UMCON, (umcon & !S3C2410_UMCOM_AFC));
|
||||
+
|
||||
while (!s3c24xx_serial_console_txrdy(port, ufcon))
|
||||
barrier();
|
||||
wr_regb(cons_uart, S3C2410_UTXH, ch);
|
||||
+
|
||||
+ if (umcon & S3C2410_UMCOM_AFC)
|
||||
+ wr_regl(port, S3C2410_UMCON, umcon);
|
||||
}
|
||||
|
||||
static void
|
||||
|
||||
Loading…
Reference in New Issue
Block a user