diff options
Diffstat (limited to 'recipes/linux/linux-openmoko-2.6.34/0002-usbhost.patch.patch')
| -rw-r--r-- | recipes/linux/linux-openmoko-2.6.34/0002-usbhost.patch.patch | 414 |
1 files changed, 414 insertions, 0 deletions
diff --git a/recipes/linux/linux-openmoko-2.6.34/0002-usbhost.patch.patch b/recipes/linux/linux-openmoko-2.6.34/0002-usbhost.patch.patch new file mode 100644 index 0000000000..ace16502c8 --- /dev/null +++ b/recipes/linux/linux-openmoko-2.6.34/0002-usbhost.patch.patch @@ -0,0 +1,414 @@ +From cbc005e5e709407bae373d006d06a4cf51fd3062 Mon Sep 17 00:00:00 2001 +From: Radek Polak <psonek2@seznam.cz> +Date: Fri, 9 Apr 2010 09:17:28 +0200 +Subject: [PATCH 2/4] usbhost.patch + +adds support for usb host mode and adds usb host pm sysfs node. I just copied +and modified how modem is powered up and backported changes in ohci-s3c2410.c. +No idea if this is the right approach, but it works - my usb keyboard is now +working after: + +echo 1 > /sys/devices/platform/s3c2440-i2c/i2c-0/0-0073/pcf50633-gpio/reg- +fixed-voltage.2/gta02-pm-usbhost.0/power_on +echo host > /sys/devices/platform/s3c2410-ohci/usb_mode + +Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com> +--- + arch/arm/mach-s3c2440/Makefile | 1 + + arch/arm/mach-s3c2440/gta02-pm-usbhost.c | 174 ++++++++++++++++++++++++++++++ + arch/arm/mach-s3c2440/mach-gta02.c | 48 ++++++++- + drivers/usb/host/ohci-s3c2410.c | 48 ++++++++ + 4 files changed, 270 insertions(+), 1 deletions(-) + create mode 100644 arch/arm/mach-s3c2440/gta02-pm-usbhost.c + +diff --git a/arch/arm/mach-s3c2440/Makefile b/arch/arm/mach-s3c2440/Makefile +index 6ce800d..450cff9 100644 +--- a/arch/arm/mach-s3c2440/Makefile ++++ b/arch/arm/mach-s3c2440/Makefile +@@ -37,6 +37,7 @@ obj-$(CONFIG_MACH_NEO1973_GTA02) += mach-gta02.o \ + gta02-pm-bt.o \ + gta02-pm-gps.o \ + gta02-pm-gsm.o \ ++ gta02-pm-usbhost.o \ + gta02-pm-wlan.o \ + gta02-fiq.o \ + +diff --git a/arch/arm/mach-s3c2440/gta02-pm-usbhost.c b/arch/arm/mach-s3c2440/gta02-pm-usbhost.c +new file mode 100644 +index 0000000..233340a +--- /dev/null ++++ b/arch/arm/mach-s3c2440/gta02-pm-usbhost.c +@@ -0,0 +1,174 @@ ++/* ++ * USBHOST Management code for the Openmoko Freerunner GSM Phone ++ * ++ * (C) 2007 by Openmoko Inc. ++ * Author: Harald Welte <laforge@openmoko.org> ++ * All rights reserved. ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation ++ * ++ */ ++ ++#include <linux/module.h> ++#include <linux/init.h> ++#include <linux/kernel.h> ++#include <linux/platform_device.h> ++#include <linux/console.h> ++#include <linux/errno.h> ++#include <linux/interrupt.h> ++#include <linux/delay.h> ++#include <linux/err.h> ++#include <linux/regulator/consumer.h> ++ ++#include <mach/gpio.h> ++#include <asm/mach-types.h> ++ ++#include <mach/hardware.h> ++ ++#include <mach/gta02.h> ++#include <mach/regs-gpio.h> ++#include <mach/regs-gpioj.h> ++ ++static struct regulator *gta02_usbhost_regulator; ++ ++static ssize_t usbhost_read(struct device *dev, struct device_attribute *attr, ++ char *buf) ++{ ++ if (!strcmp(attr->attr.name, "power_on")) { ++ if (regulator_is_enabled(gta02_usbhost_regulator)) ++ goto out_1; ++ } ++ ++ return strlcpy(buf, "0\n", 3); ++out_1: ++ return strlcpy(buf, "1\n", 3); ++} ++ ++static void usbhost_on_off(struct device *dev, int on) ++{ ++ ++ on = !!on; ++ ++ if (on == regulator_is_enabled(gta02_usbhost_regulator)) ++ return; ++ ++ if (!on) { ++ regulator_disable(gta02_usbhost_regulator); ++ return; ++ } ++ ++ regulator_enable(gta02_usbhost_regulator); ++} ++ ++static ssize_t usbhost_write(struct device *dev, struct device_attribute *attr, ++ const char *buf, size_t count) ++{ ++ unsigned long on = simple_strtoul(buf, NULL, 10); ++ ++ if (!strcmp(attr->attr.name, "power_on")) { ++ usbhost_on_off(dev, on); ++ ++ return count; ++ } ++ ++ return count; ++} ++ ++static DEVICE_ATTR(power_on, 0644, usbhost_read, usbhost_write); ++ ++#ifdef CONFIG_PM ++ ++static int gta02_usbhost_suspend(struct device *dev) ++{ ++ return 0; ++} ++ ++static int gta02_usbhost_suspend_late(struct device *dev) ++{ ++ return 0; ++} ++ ++static int gta02_usbhost_resume(struct device *dev) ++{ ++ return 0; ++} ++ ++static struct dev_pm_ops gta02_usbhost_pm_ops = { ++ .suspend = gta02_usbhost_suspend, ++ .suspend_noirq = gta02_usbhost_suspend_late, ++ .resume = gta02_usbhost_resume, ++}; ++ ++#define GTA02_USBHOST_PM_OPS (>a02_usbhost_pm_ops) ++ ++#else ++#define GTA02_USBHOST_PM_OPS NULL ++#endif /* CONFIG_PM */ ++ ++static struct attribute *gta02_usbhost_sysfs_entries[] = { ++ &dev_attr_power_on.attr, ++ NULL ++}; ++ ++static struct attribute_group gta02_usbhost_attr_group = { ++ .name = NULL, ++ .attrs = gta02_usbhost_sysfs_entries, ++}; ++ ++static int __init gta02_usbhost_probe(struct platform_device *pdev) ++{ ++ int ret; ++ ++ gta02_usbhost_regulator = regulator_get_exclusive(&pdev->dev, "USBHOST"); ++ ++ if (IS_ERR(gta02_usbhost_regulator)) { ++ ret = PTR_ERR(gta02_usbhost_regulator); ++ dev_err(&pdev->dev, "Failed to get regulator: %d\n", ret); ++ return ret; ++ } ++ ++ ret = sysfs_create_group(&pdev->dev.kobj, >a02_usbhost_attr_group); ++ if (ret) { ++ dev_err(&pdev->dev, "Failed to create sysfs entries: %d\n", ret); ++ return ret; ++ } ++ ++ return 0; ++} ++ ++static int gta02_usbhost_remove(struct platform_device *pdev) ++{ ++ usbhost_on_off(&pdev->dev, 0); ++ ++ sysfs_remove_group(&pdev->dev.kobj, >a02_usbhost_attr_group); ++ regulator_put(gta02_usbhost_regulator); ++ ++ return 0; ++} ++ ++static struct platform_driver gta02_usbhost_driver = { ++ .probe = gta02_usbhost_probe, ++ .remove = gta02_usbhost_remove, ++ .driver = { ++ .name = "gta02-pm-usbhost", ++ .pm = GTA02_USBHOST_PM_OPS, ++ }, ++}; ++ ++static int __devinit gta02_usbhost_init(void) ++{ ++ return platform_driver_register(>a02_usbhost_driver); ++} ++module_init(gta02_usbhost_init); ++ ++static void gta02_usbhost_exit(void) ++{ ++ platform_driver_unregister(>a02_usbhost_driver); ++} ++module_exit(gta02_usbhost_exit); ++ ++MODULE_LICENSE("GPL"); ++MODULE_AUTHOR("Harald Welte <laforge@openmoko.org>"); ++MODULE_DESCRIPTION("Openmoko Freerunner USBHOST Power Management"); +diff --git a/arch/arm/mach-s3c2440/mach-gta02.c b/arch/arm/mach-s3c2440/mach-gta02.c +index 795b9f4..e7d0b82 100644 +--- a/arch/arm/mach-s3c2440/mach-gta02.c ++++ b/arch/arm/mach-s3c2440/mach-gta02.c +@@ -202,6 +202,10 @@ static struct platform_device gta02_pm_gsm_dev = { + .name = "gta02-pm-gsm", + }; + ++static struct platform_device gta02_pm_usbhost_dev = { ++ .name = "gta02-pm-usbhost", ++}; ++ + static struct platform_device gta02_pm_wlan_dev = { + .name = "gta02-pm-wlan", + }; +@@ -211,6 +215,11 @@ static struct regulator_consumer_supply gsm_supply_consumer = { + .supply = "GSM", + }; + ++static struct regulator_consumer_supply usbhost_supply_consumer = { ++ .dev = >a02_pm_usbhost_dev.dev, ++ .supply = "USBHOST", ++}; ++ + static struct regulator_init_data gsm_supply_init_data = { + .constraints = { + .min_uV = 3700000, +@@ -222,6 +231,17 @@ static struct regulator_init_data gsm_supply_init_data = { + .consumer_supplies = &gsm_supply_consumer, + }; + ++static struct regulator_init_data usbhost_supply_init_data = { ++ .constraints = { ++ .min_uV = 3700000, ++ .max_uV = 3700000, ++ .valid_modes_mask = REGULATOR_MODE_NORMAL, ++ .valid_ops_mask = REGULATOR_CHANGE_STATUS, ++ }, ++ .num_consumer_supplies = 1, ++ .consumer_supplies = &usbhost_supply_consumer, ++}; ++ + static struct fixed_voltage_config gsm_supply_config = { + .supply_name = "GSM", + .microvolts = 3700000, +@@ -230,6 +250,14 @@ static struct fixed_voltage_config gsm_supply_config = { + .init_data = &gsm_supply_init_data, + }; + ++static struct fixed_voltage_config usbhost_supply_config = { ++ .supply_name = "USBHOST", ++ .microvolts = 3700000, ++ .gpio = GTA02_GPIO_PCF(PCF50633_GPO), ++ .enable_high = 1, ++ .init_data = &usbhost_supply_init_data, ++}; ++ + static struct platform_device gta02_gsm_supply_device = { + .name = "reg-fixed-voltage", + .id = 1, +@@ -238,6 +266,14 @@ static struct platform_device gta02_gsm_supply_device = { + }, + }; + ++static struct platform_device gta02_usbhost_supply_device = { ++ .name = "reg-fixed-voltage", ++ .id = 2, ++ .dev = { ++ .platform_data = &usbhost_supply_config, ++ }, ++}; ++ + /* + * we crank down SD Card clock dynamically when GPS is powered + */ +@@ -1287,12 +1323,17 @@ struct gta02_device_children { + + static struct platform_device* gta02_pcf50633_gpio_children[] = { + >a02_gsm_supply_device, ++ >a02_usbhost_supply_device, + }; + + static struct platform_device* gta02_gsm_supply_children[] = { + >a02_pm_gsm_dev, + }; + ++static struct platform_device* gta02_usbhost_supply_children[] = { ++ >a02_pm_usbhost_dev, ++}; ++ + static struct platform_device* gta02_hdq_children[] = { + &bq27000_battery_device, + }; +@@ -1301,7 +1342,7 @@ static struct platform_device* gta02_hdq_children[] = { + static struct gta02_device_children gta02_device_children[] = { + { + .dev_name = "pcf50633-gpio", +- .num_children = 1, ++ .num_children = 2, + .children = gta02_pcf50633_gpio_children, + }, + { +@@ -1310,6 +1351,11 @@ static struct gta02_device_children gta02_device_children[] = { + .children = gta02_gsm_supply_children, + }, + { ++ .dev_name = "reg-fixed-voltage.2", ++ .num_children = 1, ++ .children = gta02_usbhost_supply_children, ++ }, ++ { + .dev_name = "spi2.0", + .probed_callback = gta02_jbt6k74_probe_completed, + }, +diff --git a/drivers/usb/host/ohci-s3c2410.c b/drivers/usb/host/ohci-s3c2410.c +index a68af2d..02bd7b0 100644 +--- a/drivers/usb/host/ohci-s3c2410.c ++++ b/drivers/usb/host/ohci-s3c2410.c +@@ -22,6 +22,10 @@ + #include <linux/platform_device.h> + #include <linux/clk.h> + #include <plat/usb-control.h> ++#include <mach/hardware.h> ++#include <mach/gpio-fns.h> ++#include <mach/regs-gpio.h> ++#include <mach/gta02.h> + + #define valid_port(idx) ((idx) == 1 || (idx) == 2) + +@@ -306,6 +310,42 @@ static void s3c2410_hcd_oc(struct s3c2410_hcd_info *info, int port_oc) + local_irq_restore(flags); + } + ++/* switching of USB pads */ ++static ssize_t show_usb_mode(struct device *dev, struct device_attribute *attr, ++ char *buf) ++{ ++ if (__raw_readl(S3C24XX_MISCCR) & S3C2410_MISCCR_USBHOST) ++ return sprintf(buf, "host\n"); ++ ++ return sprintf(buf, "device\n"); ++} ++ ++static ssize_t set_usb_mode(struct device *dev, struct device_attribute *attr, ++ const char *buf, size_t count) ++{ ++ if (!strncmp(buf, "host", 4)) { ++ printk("s3c2410: changing usb to host\n"); ++ s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST, ++ S3C2410_MISCCR_USBHOST); ++ /* FIXME: ++ * - call machine-specific disable-pullup function i ++ * - enable +Vbus (if hardware supports it) ++ */ ++ s3c2410_gpio_setpin(GTA02_GPIO_USB_PULLUP, 0); ++ } else if (!strncmp(buf, "device", 6)) { ++ printk("s3c2410: changing usb to device\n"); ++ s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST, 0); ++ s3c2410_gpio_setpin(GTA02_GPIO_USB_PULLUP, 1); ++ } else { ++ printk("s3c2410: unknown mode\n"); ++ return -EINVAL; ++ } ++ ++ return count; ++} ++ ++static DEVICE_ATTR(usb_mode, S_IRUGO | S_IWUSR, show_usb_mode, set_usb_mode); ++ + /* may be called without controller electrically present */ + /* may be called with controller, bus, and devices active */ + +@@ -323,6 +363,7 @@ static void s3c2410_hcd_oc(struct s3c2410_hcd_info *info, int port_oc) + static void + usb_hcd_s3c2410_remove (struct usb_hcd *hcd, struct platform_device *dev) + { ++ device_remove_file(&dev->dev, &dev_attr_usb_mode); + usb_remove_hcd(hcd); + s3c2410_stop_hc(dev); + iounmap(hcd->regs); +@@ -390,8 +431,15 @@ static int usb_hcd_s3c2410_probe (const struct hc_driver *driver, + if (retval != 0) + goto err_ioremap; + ++ retval = device_create_file(&dev->dev, &dev_attr_usb_mode); ++ if (retval != 0) ++ goto err_hcd; ++ + return 0; + ++ err_hcd: ++ usb_remove_hcd(hcd); ++ + err_ioremap: + s3c2410_stop_hc(dev); + iounmap(hcd->regs); +-- +1.7.1 + |