From 22754b63e7ac756b14d753fc61c6795004f79690 Mon Sep 17 00:00:00 2001 From: Hamish Guthrie Date: Tue, 8 Jul 2008 06:10:59 +0000 Subject: Added gpio and led drivers for 2.6.25.10 kernel SVN-Revision: 11745 --- .../at91/patches-2.6.25/003-gpio-driver.patch | 552 +++++++++++++++++++++ 1 file changed, 552 insertions(+) create mode 100644 target/linux/at91/patches-2.6.25/003-gpio-driver.patch (limited to 'target/linux/at91/patches-2.6.25/003-gpio-driver.patch') diff --git a/target/linux/at91/patches-2.6.25/003-gpio-driver.patch b/target/linux/at91/patches-2.6.25/003-gpio-driver.patch new file mode 100644 index 0000000000..e81c771c0c --- /dev/null +++ b/target/linux/at91/patches-2.6.25/003-gpio-driver.patch @@ -0,0 +1,552 @@ +diff -urN linux-2.6.25.10.old/arch/arm/mach-at91/board-vlink.c linux-2.6.25.10/arch/arm/mach-at91/board-vlink.c +--- linux-2.6.25.10.old/arch/arm/mach-at91/board-vlink.c 2008-07-07 11:20:21.000000000 +0200 ++++ linux-2.6.25.10/arch/arm/mach-at91/board-vlink.c 2008-07-07 12:11:40.000000000 +0200 +@@ -99,7 +99,7 @@ + */ + + static struct at91_mmc_data __initdata vlink_mmc_data = { +-// .det_pin = AT91_PIN_PB27, ++// .det_pin = AT91_PIN_PC10, + .slot_b = 0, + .wire4 = 1, + // .wp_pin = AT91_PIN_PA17, +@@ -136,6 +136,7 @@ + + static void __init vlink_board_init(void) + { ++ int v100; + /* Serial */ + at91_add_device_serial(); + /* Ethernet */ +@@ -157,36 +158,66 @@ + // at91_set_gpio_output(AT91_PIN_PB22, 1); /* this MMC card slot can optionally use SPI signaling (CS3). */ + at91_add_device_mmc(0, &vlink_mmc_data); + #endif ++ ++// Set VLink version PIN as an input with pull-up (V1.5 = GND) ++ at91_set_gpio_input(AT91_PIN_PC2, 1); ++ v100 = at91_get_gpio_value(AT91_PIN_PC2); ++ + /* LEDs */ + // at91_gpio_leds(vlink_leds, ARRAY_SIZE(vlink_leds)); + + /* Other LED's */ +- at91_set_gpio_output(AT91_PIN_PC7, 1); // LED FRONT AP1 +- at91_set_gpio_output(AT91_PIN_PC8, 1); // LED FRONT BP1 +- at91_set_gpio_output(AT91_PIN_PB14, 1); // LED BACK AP1 +- at91_set_gpio_output(AT91_PIN_PB15, 1); // LED BACK BP1 +- at91_set_gpio_output(AT91_PIN_PB16, 1); // LED BACK AP2 +- at91_set_gpio_output(AT91_PIN_PB17, 1); // LED BACK BP2 ++ at91_set_gpio_output(AT91_PIN_PC7, 1); // LED FRONT AP1 ++ at91_set_gpio_output(AT91_PIN_PC8, 1); // LED FRONT BP1 ++ at91_set_gpio_output(AT91_PIN_PB14, 1); // LED BACK AP1 ++ at91_set_gpio_output(AT91_PIN_PB15, 1); // LED BACK BP1 ++ at91_set_gpio_output(AT91_PIN_PB16, 1); // LED BACK AP2 ++ at91_set_gpio_output(AT91_PIN_PB17, 1); // LED BACK BP2 ++ ++/* Test jig presence detection */ ++ at91_set_gpio_input(AT91_PIN_PB8, 1); // JIGPRESENT + + /* SIM Cards */ +- at91_set_gpio_output(AT91_PIN_PB9, 1); // ENBSC3 +- at91_set_gpio_output(AT91_PIN_PB10, 1); // ENBSC2 +- at91_set_gpio_output(AT91_PIN_PB11, 1); // ENBSC1 ++ if (at91_get_gpio_value(AT91_PIN_PB8)) { ++ at91_set_gpio_output(AT91_PIN_PB11, 0); ++ if (v100) ++ at91_set_gpio_output(AT91_PIN_PB9, 1); ++ else ++ at91_set_gpio_output(AT91_PIN_PC13, 1); ++ } else { ++ at91_set_gpio_output(AT91_PIN_PB11, 1); ++ if (v100) ++ at91_set_gpio_output(AT91_PIN_PB9, 0); ++ else ++ at91_set_gpio_output(AT91_PIN_PC13, 0); ++ } + +-/* GSM Module Control */ +- at91_set_gpio_output(AT91_PIN_PB12, 1); // GSMONOFF ++ at91_set_gpio_output(AT91_PIN_PB10, 1); // ENBSC2 + +-/* Test jig presence detection */ +- at91_set_gpio_input(AT91_PIN_PB8, 1); // JIGPRESENT ++/* GSM Module Control */ ++ at91_set_gpio_output(AT91_PIN_PB12, 1); // GSMONOFF + + /* Power indicator */ +- at91_set_gpio_input(AT91_PIN_PB22, 1); // PWR_IND ++ at91_set_gpio_input(AT91_PIN_PB22, 1); // PWR_IND + + /* USB Device control */ +- at91_set_gpio_input(AT91_PIN_PB27, 1); // UDB_CNX +- at91_set_gpio_output(AT91_PIN_PB28, 1); // UDB_PUP +- at91_set_multi_drive(AT91_PIN_PB28, 1); // Set to multi-drive +- ++ at91_set_gpio_input(AT91_PIN_PB27, 1); // UDB_CNX ++ at91_set_gpio_output(AT91_PIN_PB28, 1); // UDB_PUP ++ at91_set_multi_drive(AT91_PIN_PB28, 1); // Set to multi-drive ++ ++/* USB Power controls */ ++ ++ if (v100) ++ { // V100 ++ at91_set_gpio_input (AT91_PIN_PC12, 1); // SD Card present ++ } ++ else ++ { // DO special things for V1.5 ++ at91_set_gpio_output(AT91_PIN_PB9 , 0); // USB suspend ++ at91_set_gpio_input (AT91_PIN_PC10, 1); // SD Card present ++ at91_set_gpio_output(AT91_PIN_PC11, 0); // USB Vin CTRL for modules onboard ++ at91_set_gpio_output(AT91_PIN_PC12, 0); // SIM control ++ } + } + + MACHINE_START(VLINK, "FDL VersaLink") +diff -urN linux-2.6.25.10.old/arch/arm/mach-at91/gpio.c linux-2.6.25.10/arch/arm/mach-at91/gpio.c +--- linux-2.6.25.10.old/arch/arm/mach-at91/gpio.c 2008-07-07 11:20:21.000000000 +0200 ++++ linux-2.6.25.10/arch/arm/mach-at91/gpio.c 2008-07-07 11:42:33.000000000 +0200 +@@ -29,6 +29,7 @@ + + static struct at91_gpio_bank *gpio; + static int gpio_banks; ++static u32 pio_gpio_pin[4] = { 0, 0, 0, 0 }; + + + static inline void __iomem *pin_to_controller(unsigned pin) +@@ -71,9 +72,13 @@ + { + void __iomem *pio = pin_to_controller(pin); + unsigned mask = pin_to_mask(pin); ++ int bank = (pin - PIN_BASE) / 32; + + if (!pio) + return -EINVAL; ++ ++ pio_gpio_pin[bank] |= mask; ++ + __raw_writel(mask, pio + PIO_IDR); + __raw_writel(mask, pio + (use_pullup ? PIO_PUER : PIO_PUDR)); + __raw_writel(mask, pio + PIO_PER); +@@ -130,10 +135,13 @@ + { + void __iomem *pio = pin_to_controller(pin); + unsigned mask = pin_to_mask(pin); ++ int bank = (pin - PIN_BASE) / 32; + + if (!pio) + return -EINVAL; + ++ pio_gpio_pin[bank] |= mask; ++ + __raw_writel(mask, pio + PIO_IDR); + __raw_writel(mask, pio + (use_pullup ? PIO_PUER : PIO_PUDR)); + __raw_writel(mask, pio + PIO_ODR); +@@ -151,10 +159,13 @@ + { + void __iomem *pio = pin_to_controller(pin); + unsigned mask = pin_to_mask(pin); ++ int bank = (pin - PIN_BASE) / 32; + + if (!pio) + return -EINVAL; + ++ pio_gpio_pin[bank] |= mask; ++ + __raw_writel(mask, pio + PIO_IDR); + __raw_writel(mask, pio + PIO_PUDR); + __raw_writel(mask, pio + (value ? PIO_SODR : PIO_CODR)); +@@ -262,6 +273,18 @@ + } + EXPORT_SYMBOL(at91_get_gpio_value); + ++int at91_is_pin_gpio(unsigned pin) ++{ ++ void __iomem *pio = pin_to_controller(pin); ++ unsigned mask = pin_to_mask(pin); ++ int bank = (pin - PIN_BASE) / 32; ++ ++ if (!pio) ++ return -EINVAL; ++ return (pio_gpio_pin[bank] & mask) != 0; ++} ++EXPORT_SYMBOL(at91_is_pin_gpio); ++ + /*--------------------------------------------------------------------------*/ + + #ifdef CONFIG_PM +diff -urN linux-2.6.25.10.old/drivers/char/Kconfig linux-2.6.25.10/drivers/char/Kconfig +--- linux-2.6.25.10.old/drivers/char/Kconfig 2008-07-07 11:20:21.000000000 +0200 ++++ linux-2.6.25.10/drivers/char/Kconfig 2008-07-07 11:42:33.000000000 +0200 +@@ -1072,5 +1072,12 @@ + The SPI driver gives user mode access to this serial + bus on the AT91RM9200 processor. + ++config AT91_VLIO ++ tristate "Versalink LED and GPIO interface" ++ depends on ARCH_AT91RM9200 && MACH_VLINK ++ default n ++ help ++ Provides a handler GPIO's in userspace ++ + endmenu + +diff -urN linux-2.6.25.10.old/drivers/char/Makefile linux-2.6.25.10/drivers/char/Makefile +--- linux-2.6.25.10.old/drivers/char/Makefile 2008-07-07 11:20:21.000000000 +0200 ++++ linux-2.6.25.10/drivers/char/Makefile 2008-07-07 11:42:33.000000000 +0200 +@@ -100,6 +100,7 @@ + obj-$(CONFIG_TELCLOCK) += tlclk.o + obj-$(CONFIG_AT91_SPI) += at91_spi.o + obj-$(CONFIG_AT91_SPIDEV) += at91_spidev.o ++obj-$(CONFIG_AT91_VLIO) += vlink_giu.o + + obj-$(CONFIG_MWAVE) += mwave/ + obj-$(CONFIG_AGP) += agp/ +diff -urN linux-2.6.25.10.old/drivers/char/vlink_giu.c linux-2.6.25.10/drivers/char/vlink_giu.c +--- linux-2.6.25.10.old/drivers/char/vlink_giu.c 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.25.10/drivers/char/vlink_giu.c 2008-07-07 13:41:51.000000000 +0200 +@@ -0,0 +1,333 @@ ++/* ++ * Driver for FDL Versalink GPIO ++ * ++ * Copyright (C) 2005 Guthrie Consulting ++ * Author: Hamish Guthrie ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License as published by ++ * the Free Software Foundation; either version 2 of the License, or ++ * (at your option) any later version. ++ * ++ * This program is distributed in the hope that it will be useful, ++ * but WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ * GNU General Public License for more details. ++ * ++ * You should have received a copy of the GNU General Public License ++ * along with this program; if not, write to the Free Software ++ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA ++ */ ++ ++#include ++#include ++#include ++#include ++ ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++ ++static int major; /* default is dynamic major device number */ ++module_param(major, int, 0); ++MODULE_PARM_DESC(major, "Major device number"); ++ ++#define VIO_NR_DEVS 96 ++ ++struct vio_dev { ++ struct cdev cdev; ++}; ++ ++struct vio_dev *vio_devices; ++static struct class *vio_class; ++ ++#define MAX_VIO_NAMES 24 ++typedef struct ++{ ++ char port; ++ char pin; ++ char name100[10]; ++ char name150[10]; ++} VIO_NAMES; ++ ++VIO_NAMES VioName[MAX_VIO_NAMES] = ++{ // Port, Pin, V100, V150 ++ {'A',19,"port1DTR" ,"port1DTR"}, ++ {'A',24,"port2DTR" ,"port2DTR"}, ++ {'B',8, "jigOn" ,"jigOn"} , ++ {'B',9, "enbSC3" ,"usbSUSPND"}, ++ {'B',10,"enbSC2" ,"enbSC2"}, ++ {'B',11,"enbSC1" ,"enbSC1"}, ++ {'B',12,"gsmONOFF" ,"gsmONOFF"}, ++ {'B',14,"ledBAP1" ,"ledBAP1"}, ++ {'B',15,"ledBBP1" ,"ledBBP1"}, ++ {'B',16,"ledBAP2" ,"ledBAP2"}, ++ {'B',17,"ledBBP2" ,"ledBBP2"}, ++ {'B',27,"udpCNX" ,"udpCNX"}, ++ {'B',28,"udpPUP" ,"udpPUP"}, ++ {'B',29,"port2DCD" ,"port2DCD"}, ++ {'C',2, "vlVer100" ,"vlVer150"}, ++ {'C',7, "ledFAP1" ,"ledFAP1"}, ++ {'C',8, "ledFBP1" ,"ledFBP1"}, ++ {'C',10,"vioC10" ,"sdCardON"}, ++ {'C',11,"vioC11" ,"vusbCTRL"}, ++ {'C',12,"sdCardON" ,"simCTRL"}, ++ {'C',13,"vioC13" ,"enbSC3"}, ++ {'C',14,"ledFBP2" ,"ledFBP2"}, ++ {'C',15,"ledFAP2" ,"ledFAP2"}, ++ {0,0,"",""} ++}; ++ ++/* ++{'B',18,"gsmRIO" ,"gsmRIO"}, ++{'B',20,"gsmTX" ,"gsmTX"}, ++{'B',21,"gsmRX" ,"gsmRX"}, ++{'B',22,"gsmPIND" ,"gsmPIND"}, ++{'B',23,"gsmDCD" ,"gsmDCD"}, ++{'B',24,"gsmCTS" ,"gsmCTS"}, ++{'B',25,"gsmDSR" ,"gsmDSR"}, ++{'B',26,"gsmRTS" ,"gsmRTS"}, ++*/ ++static void lookupPINName(char version100, char *devName, char port, char pin); ++// EOF KWJ + AJE ++ ++static ssize_t gpio_read(struct file *file, char __user *buf, size_t len, ++ loff_t *ppos) ++{ ++ unsigned int pin; ++ int retval; ++ char value = '0'; ++ ++ pin = iminor(file->f_dentry->d_inode); ++ ++ retval = at91_get_gpio_value(PIN_BASE + pin); ++ if (retval < 0) ++ return -EFAULT; ++ ++ value = retval + 0x30; ++ if (put_user(value, buf)) ++ return -EFAULT; ++ ++ return 1; ++} ++ ++static ssize_t gpio_write(struct file *file, const char __user *data, ++ size_t len, loff_t *ppos) ++{ ++ unsigned int pin; ++ size_t i; ++ char c; ++ int retval = 0; ++ ++ pin = iminor(file->f_dentry->d_inode); ++ ++ for (i = 0; i < len; i++) { ++ if (get_user(c, data + i)) ++ return -EFAULT; ++ ++ switch (c) { ++ case '0': ++ case '1': ++ retval = at91_set_gpio_value(PIN_BASE + pin, (int)c - 0x30); ++ if (retval < 0) ++ return -EFAULT; ++ break; ++ default: ++ break; ++ } ++ ++ if (retval < 0) ++ break; ++ } ++ ++ return i; ++} ++ ++static int gpio_open(struct inode *inode, struct file *file) ++{ ++ return nonseekable_open(inode, file); ++} ++ ++static int gpio_release(struct inode *inode, struct file *file) ++{ ++ return 0; ++} ++ ++static struct file_operations vio_fops = { ++ .owner = THIS_MODULE, ++ .read = gpio_read, ++ .write = gpio_write, ++ .open = gpio_open, ++ .release = gpio_release, ++}; ++ ++static void vio_setup_cdev(struct vio_dev *dev, int index) ++{ ++ int err, devno = MKDEV(major, index); ++ ++ cdev_init(&dev->cdev, &vio_fops); ++ dev->cdev.owner = THIS_MODULE; ++ dev->cdev.ops = &vio_fops; ++ err = cdev_add (&dev->cdev, devno, 1); ++ if (err) ++ printk(KERN_NOTICE "vio: Error %d adding vio%d", err, index); ++} ++ ++static int vio_remove(struct platform_device *dev) ++{ ++ int i; ++ dev_t devno = MKDEV(major, 0); ++ ++ if (vio_devices) { ++ for(i=0; i= MAX_VIO_NAMES) ++ break; ++ if (VioName[i].port == port+'A' && VioName[i].pin == pin) ++ { ++ printk(KERN_ERR "vio++: %c%d=%s\n",VioName[i].port,VioName[i].pin,VioName[i].name150); ++ if (version100) ++ strcpy(devName, VioName[i].name100); ++ else ++ strcpy(devName, VioName[i].name150); ++ found = 1; ++ } ++ } ++ if (!found) ++ sprintf(devName, "vio%c%d", port + 'A', pin); ++} ++ ++static struct platform_device *vio_platform_device; ++ ++static struct platform_driver vio_driver = { ++ .probe = vio_probe, ++ .remove = vio_remove, ++ .driver = { ++ .name = "vio", ++ .owner = THIS_MODULE, ++ }, ++}; ++ ++static int __init vio_init(void) ++{ ++ int retval; ++ ++ vio_platform_device = platform_device_register_simple("vio", -1, NULL, 0); ++ if (IS_ERR(vio_platform_device)) { ++ printk(KERN_WARNING "vio: device registration failed\n"); ++ return PTR_ERR(vio_platform_device); ++ } ++ ++ retval = platform_driver_register(&vio_driver); ++ if (retval < 0) { ++ printk(KERN_WARNING "vio: driver registration failed\n"); ++ platform_device_unregister(vio_platform_device); ++ } ++ ++ return retval; ++} ++ ++static void __exit vio_exit(void) ++{ ++ platform_driver_unregister(&vio_driver); ++ platform_device_unregister(vio_platform_device); ++} ++ ++module_init(vio_init); ++module_exit(vio_exit); ++ ++MODULE_AUTHOR("Hamish Guthrie "); ++MODULE_DESCRIPTION("FDL Versalink GPIO Driver"); ++MODULE_LICENSE("GPL"); +--- linux-2.6.25.10.old/include/asm-arm/arch-at91/gpio.h 2008-07-03 05:46:47.000000000 +0200 ++++ linux-2.6.25.10/include/asm-arm/arch-at91/gpio.h 2008-07-07 17:03:03.000000000 +0200 +@@ -199,6 +199,7 @@ + /* callable at any time */ + extern int at91_set_gpio_value(unsigned pin, int value); + extern int at91_get_gpio_value(unsigned pin); ++extern int at91_is_pin_gpio(unsigned pin); + + /* callable only from core power-management code */ + extern void at91_gpio_suspend(void); -- cgit v1.2.3