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authorflorian <florian@3c298f89-4303-0410-b956-a3cf2f4a3e73>2007-05-24 23:30:35 +0000
committerflorian <florian@3c298f89-4303-0410-b956-a3cf2f4a3e73>2007-05-24 23:30:35 +0000
commit740bd443bd87347bf636e6b24e3ae379dcf33c30 (patch)
tree522ec858997905e802594c857b8e4f41ba77f949 /target
parent2d84656963645199fb695344818787f2310da825 (diff)
add generic GPIO to MIPS boards, use it for au1000 and for the MTX-1 led driver as well
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@7334 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target')
-rw-r--r--target/linux/au1000-2.6/config/default72
-rw-r--r--target/linux/au1000-2.6/files/drivers/leds/leds-mtx1.c31
-rw-r--r--target/linux/au1000-2.6/patches/001-au1x00_gpio.patch294
-rw-r--r--target/linux/generic-2.6/patches/013-mips_generic_gpio_support.patch32
4 files changed, 366 insertions, 63 deletions
diff --git a/target/linux/au1000-2.6/config/default b/target/linux/au1000-2.6/config/default
index 7953251f6..09afbd9cb 100644
--- a/target/linux/au1000-2.6/config/default
+++ b/target/linux/au1000-2.6/config/default
@@ -2,10 +2,13 @@ CONFIG_32BIT=y
# CONFIG_64BIT is not set
CONFIG_64BIT_PHYS_ADDR=y
# CONFIG_8139TOO is not set
+# CONFIG_ARCH_HAS_ILOG2_U32 is not set
+# CONFIG_ARCH_HAS_ILOG2_U64 is not set
# CONFIG_ATM is not set
# CONFIG_B44 is not set
CONFIG_BASE_SMALL=0
-# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
+CONFIG_BITREVERSE=y
+# CONFIG_BROADCOM_PHY is not set
CONFIG_CHR_DEV_SG=m
CONFIG_CMDLINE="root=/dev/mtdblock0 rootfstype=jffs2 init=/etc/preinit"
# CONFIG_CPU_BIG_ENDIAN is not set
@@ -45,12 +48,15 @@ CONFIG_DMA_NONCOHERENT=y
CONFIG_DUMMY=m
CONFIG_ELF_CORE=y
# CONFIG_ENABLE_MUST_CHECK is not set
-# CONFIG_FIRMWARE_EDID is not set
# CONFIG_FIXED_PHY is not set
CONFIG_FS_POSIX_ACL=y
CONFIG_GENERIC_FIND_NEXT_BIT=y
+CONFIG_GENERIC_GPIO=y
+# CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ is not set
# CONFIG_GEN_RTC is not set
# CONFIG_HAMRADIO is not set
+CONFIG_HAS_IOMEM=y
+CONFIG_HAS_IOPORT=y
CONFIG_HW_HAS_PCI=y
CONFIG_HW_RANDOM=y
CONFIG_HZ=250
@@ -64,44 +70,17 @@ CONFIG_I2C=m
CONFIG_I2C_ALGOBIT=m
CONFIG_I2C_ALGOPCA=m
CONFIG_I2C_ALGOPCF=m
-# CONFIG_I2C_ALI1535 is not set
-# CONFIG_I2C_ALI1563 is not set
-# CONFIG_I2C_ALI15X3 is not set
-# CONFIG_I2C_AMD756 is not set
-# CONFIG_I2C_AMD8111 is not set
CONFIG_I2C_AU1X00GPIO=m
CONFIG_I2C_CHARDEV=m
-# CONFIG_I2C_DEBUG_ALGO is not set
-# CONFIG_I2C_DEBUG_BUS is not set
-# CONFIG_I2C_DEBUG_CHIP is not set
-# CONFIG_I2C_DEBUG_CORE is not set
-# CONFIG_I2C_I801 is not set
-# CONFIG_I2C_I810 is not set
-# CONFIG_I2C_NFORCE2 is not set
-# CONFIG_I2C_OCORES is not set
-# CONFIG_I2C_PARPORT_LIGHT is not set
-# CONFIG_I2C_PCA_ISA is not set
-# CONFIG_I2C_PIIX4 is not set
-# CONFIG_I2C_PROSAVAGE is not set
-# CONFIG_I2C_SAVAGE4 is not set
-# CONFIG_I2C_SIS5595 is not set
-# CONFIG_I2C_SIS630 is not set
-# CONFIG_I2C_SIS96X is not set
-# CONFIG_I2C_STUB is not set
-# CONFIG_I2C_VIA is not set
-# CONFIG_I2C_VIAPRO is not set
-# CONFIG_I2C_VOODOO3 is not set
# CONFIG_IDE is not set
CONFIG_INITRAMFS_SOURCE=""
CONFIG_JFFS2_FS_DEBUG=0
-# CONFIG_LAN_SAA9730 is not set
CONFIG_LEDS_MTX1=y
# CONFIG_LEDS_TRIGGERS is not set
# CONFIG_MACH_DECSTATION is not set
# CONFIG_MACH_JAZZ is not set
# CONFIG_MACH_VR41XX is not set
CONFIG_MAGIC_SYSRQ=y
-CONFIG_MINI_FO=y
CONFIG_MIPS=y
# CONFIG_MIPS_ATLAS is not set
CONFIG_MIPS_AU1X00_ENET=y
@@ -138,6 +117,7 @@ CONFIG_MODULE_FORCE_UNLOAD=y
CONFIG_MTD=y
# CONFIG_MTD_ABSENT is not set
# CONFIG_MTD_ALCHEMY is not set
+CONFIG_MTD_BLKDEVS=y
CONFIG_MTD_BLOCK=y
# CONFIG_MTD_BLOCK2MTD is not set
CONFIG_MTD_CFI=y
@@ -182,33 +162,38 @@ CONFIG_MTD_PARTITIONS=y
CONFIG_MTX1_WATCHDOG=y
# CONFIG_NATSEMI is not set
# CONFIG_NE2K_PCI is not set
+CONFIG_NET_SCH_FIFO=y
# CONFIG_NET_VENDOR_3COM is not set
+CONFIG_NF_CONNTRACK=y
+CONFIG_NF_CONNTRACK_MARK=y
+CONFIG_NF_CT_ACCT=y
+# CONFIG_NF_NAT_AMANDA is not set
+CONFIG_NF_NAT_FTP=m
+CONFIG_NF_NAT_H323=m
+CONFIG_NF_NAT_IRC=m
+CONFIG_NF_NAT_NEEDED=y
+# CONFIG_NF_NAT_PPTP is not set
+CONFIG_NF_NAT_SIP=m
+# CONFIG_NF_NAT_TFTP is not set
# CONFIG_PAGE_SIZE_16KB is not set
CONFIG_PAGE_SIZE_4KB=y
# CONFIG_PAGE_SIZE_64KB is not set
# CONFIG_PAGE_SIZE_8KB is not set
-# CONFIG_PCCARD is not set
# CONFIG_PCIPCWATCHDOG is not set
CONFIG_PHYLIB=y
-# CONFIG_PM is not set
# CONFIG_PMC_YOSEMITE is not set
+# CONFIG_PNPACPI is not set
# CONFIG_PNX8550_JBS is not set
-# CONFIG_PNX8550_V2PCI is not set
+# CONFIG_PNX8550_STB810 is not set
# CONFIG_PPP_MPPE is not set
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
# CONFIG_QSEMI_PHY is not set
+CONFIG_RESOURCES_64BIT=y
# CONFIG_RTC is not set
CONFIG_RWSEM_GENERIC_SPINLOCK=y
CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER=y
CONFIG_SCSI_CONSTANTS=y
# CONFIG_SCSI_PROC_FS is not set
-# CONFIG_SENSORS_DS1337 is not set
-# CONFIG_SENSORS_DS1374 is not set
-# CONFIG_SENSORS_EEPROM is not set
-# CONFIG_SENSORS_MAX6875 is not set
-# CONFIG_SENSORS_PCA9539 is not set
-# CONFIG_SENSORS_PCF8574 is not set
-# CONFIG_SENSORS_PCF8591 is not set
CONFIG_SERIAL_8250_AU1X00=y
# CONFIG_SERIAL_8250_EXTENDED is not set
CONFIG_SERIAL_8250_NR_UARTS=4
@@ -235,10 +220,12 @@ CONFIG_SOFT_WATCHDOG=m
# CONFIG_SPARSEMEM_STATIC is not set
# CONFIG_STANDALONE is not set
CONFIG_STRIP=m
-CONFIG_SYN_COOKIES=y
+CONFIG_SYSVIPC_SYSCTL=y
CONFIG_SYS_HAS_CPU_MIPS32_R1=y
CONFIG_SYS_SUPPORTS_32BIT_KERNEL=y
+CONFIG_SYS_SUPPORTS_APM_EMULATION=y
CONFIG_SYS_SUPPORTS_ARBIT_HZ=y
+CONFIG_SYS_SUPPORTS_KGDB=y
CONFIG_SYS_SUPPORTS_LITTLE_ENDIAN=y
# CONFIG_TMD_HERMES is not set
# CONFIG_TOSHIBA_JMR3927 is not set
@@ -247,10 +234,15 @@ CONFIG_SYS_SUPPORTS_LITTLE_ENDIAN=y
CONFIG_TRAD_SIGNALS=y
# CONFIG_UNUSED_SYMBOLS is not set
# CONFIG_USBPCWATCHDOG is not set
+# CONFIG_USB_EHCI_BIG_ENDIAN_MMIO is not set
CONFIG_USB_EHCI_HCD=m
# CONFIG_USB_EHCI_ROOT_HUB_TT is not set
# CONFIG_USB_EHCI_SPLIT_ISO is not set
# CONFIG_USB_EHCI_TT_NEWSCHED is not set
+# CONFIG_USB_OHCI_BIG_ENDIAN_DESC is not set
+# CONFIG_USB_OHCI_BIG_ENDIAN_MMIO is not set
CONFIG_USB_OHCI_HCD=m
CONFIG_USB_UHCI_HCD=m
# CONFIG_VIA_RHINE is not set
+CONFIG_ZONE_DMA=y
+CONFIG_ZONE_DMA_FLAG=1
diff --git a/target/linux/au1000-2.6/files/drivers/leds/leds-mtx1.c b/target/linux/au1000-2.6/files/drivers/leds/leds-mtx1.c
index 86615f46b..4c2ab55fc 100644
--- a/target/linux/au1000-2.6/files/drivers/leds/leds-mtx1.c
+++ b/target/linux/au1000-2.6/files/drivers/leds/leds-mtx1.c
@@ -14,41 +14,26 @@
#include <linux/platform_device.h>
#include <linux/leds.h>
#include <linux/err.h>
-#include <asm/mach-au1x00/au1000.h>
+#include <asm/gpio.h>
static struct platform_device *pdev;
-static void mtx1_green_led_set(struct led_classdev *led_cdev, enum led_brightness brightness)
+static void mtx1_led_set(struct led_classdev *led_cdev, enum led_brightness brightness)
{
- /* The power LED cannot be controlled the same way as for the Status LED */
- if (brightness) {
- au_writel( 0x18000800, GPIO2_OUTPUT );
- } else {
- au_writel( 0x18000000, GPIO2_OUTPUT);
- }
-}
-
-static void mtx1_red_led_set(struct led_classdev *led_cdev, enum led_brightness brightness)
-{
- /* We store GPIO address (originally address - 200) in the "flags" field*/
- unsigned long pinmask = 1 << led_cdev->flags;
- if (brightness) {
- au_writel((pinmask << 16) | pinmask, GPIO2_OUTPUT);
- } else {
- au_writel((pinmask << 16) | 0, GPIO2_OUTPUT);
- }
+ if (!strcmp("mtx1:green", led_cdev->name))
+ gpio_set_value(211, brightness ? 1 : 0);
+ else
+ gpio_set_value(212, brightness ? 1 : 0);
}
static struct led_classdev mtx1_green_led = {
.name = "mtx1:green",
- .brightness_set = mtx1_green_led_set,
+ .brightness_set = mtx1_led_set,
};
static struct led_classdev mtx1_red_led = {
.name = "mtx1:red",
- .flags = 12,
- .brightness_set = mtx1_red_led_set,
- .default_trigger = "ide-disk",
+ .brightness_set = mtx1_led_set,
};
static int mtx1_leds_probe(struct platform_device *pdev)
diff --git a/target/linux/au1000-2.6/patches/001-au1x00_gpio.patch b/target/linux/au1000-2.6/patches/001-au1x00_gpio.patch
new file mode 100644
index 000000000..d4339aec4
--- /dev/null
+++ b/target/linux/au1000-2.6/patches/001-au1x00_gpio.patch
@@ -0,0 +1,294 @@
+diff -urN linux-2.6.21.1/arch/mips/au1000/common/gpio.c linux-2.6.21.1.new/arch/mips/au1000/common/gpio.c
+--- linux-2.6.21.1/arch/mips/au1000/common/gpio.c 2007-04-27 23:49:26.000000000 +0200
++++ linux-2.6.21.1.new/arch/mips/au1000/common/gpio.c 2007-05-22 21:41:55.000000000 +0200
+@@ -1,4 +1,7 @@
+ /*
++ * Copyright (C) 2007, OpenWrt.org, Florian Fainelli <florian@openwrt.org>
++ * Architecture specific GPIO support
++ *
+ * 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
+@@ -18,101 +21,133 @@
+ * 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.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
++ *
++ * Notes :
++ * au1000 SoC have only one GPIO line : GPIO1
++ * others have a second one : GPIO2
+ */
++
++#include <linux/autoconf.h>
++#include <linux/init.h>
++#include <linux/types.h>
+ #include <linux/module.h>
+-#include <au1000.h>
+-#include <au1xxx_gpio.h>
++
++#include <asm/addrspace.h>
++#include <asm/io.h>
++
++#include <asm/mach-au1x00/au1000.h>
++#include <asm/gpio.h>
+
+ #define gpio1 sys
+ #if !defined(CONFIG_SOC_AU1000)
+ static AU1X00_GPIO2 * const gpio2 = (AU1X00_GPIO2 *)GPIO2_BASE;
++#define GPIO2_OUTPUT_ENABLE_MASK 0x00010000
+
+-#define GPIO2_OUTPUT_ENABLE_MASK 0x00010000
+-
+-int au1xxx_gpio2_read(int signal)
++static int au1xxx_gpio2_read(unsigned gpio)
+ {
+- signal -= 200;
+-/* gpio2->dir &= ~(0x01 << signal); //Set GPIO to input */
+- return ((gpio2->pinstate >> signal) & 0x01);
++ gpio -= AU1XXX_GPIO_BASE;
++ return ((gpio2->pinstate >> gpio) & 0x01);
+ }
+
+-void au1xxx_gpio2_write(int signal, int value)
++static void au1xxx_gpio2_write(unsigned gpio, int value)
+ {
+- signal -= 200;
++ gpio -= AU1XXX_GPIO_BASE;
+
+- gpio2->output = (GPIO2_OUTPUT_ENABLE_MASK << signal) |
+- (value << signal);
++ gpio2->output = (GPIO2_OUTPUT_ENABLE_MASK << gpio) |
++ (value << gpio);
+ }
+
+-void au1xxx_gpio2_tristate(int signal)
++static int au1xxx_gpio2_direction_input(unsigned gpio)
+ {
+- signal -= 200;
+- gpio2->dir &= ~(0x01 << signal); /* Set GPIO to input */
++ gpio -= AU1XXX_GPIO_BASE;
++ gpio2->dir &= ~(0x01 << gpio);
++ return 0;
+ }
+-#endif
+
+-int au1xxx_gpio1_read(int signal)
++static int au1xxx_gpio2_direction_output(unsigned gpio, int value)
++{
++ gpio -= AU1XXX_GPIO_BASE;
++ gpio2->dir = (0x01 << gpio) | (value << gpio);
++ return 0;
++}
++
++#endif /* !defined(CONFIG_SOC_AU1000) */
++
++static int au1xxx_gpio1_read(unsigned gpio)
+ {
+-/* gpio1->trioutclr |= (0x01 << signal); */
+- return ((gpio1->pinstaterd >> signal) & 0x01);
++ return ((gpio1->pinstaterd >> gpio) & 0x01);
+ }
+
+-void au1xxx_gpio1_write(int signal, int value)
++static void au1xxx_gpio1_write(unsigned gpio, int value)
+ {
+ if(value)
+- gpio1->outputset = (0x01 << signal);
++ gpio1->outputset = (0x01 << gpio);
+ else
+- gpio1->outputclr = (0x01 << signal); /* Output a Zero */
++ /* Output a zero */
++ gpio1->outputclr = (0x01 << gpio);
+ }
+
+-void au1xxx_gpio1_tristate(int signal)
++static int au1xxx_gpio1_direction_input(unsigned gpio)
+ {
+- gpio1->trioutclr = (0x01 << signal); /* Tristate signal */
++ gpio1->pininputen = (0x01 << gpio);
++ return 0;
+ }
+
++static int au1xxx_gpio1_direction_output(unsigned gpio, int value)
++{
++ gpio1->trioutclr = (0x01 & gpio);
++ return 0;
++}
+
+-int au1xxx_gpio_read(int signal)
++int au1xxx_gpio_get_value(unsigned gpio)
+ {
+- if(signal >= 200)
++ if(gpio >= AU1XXX_GPIO_BASE)
+ #if defined(CONFIG_SOC_AU1000)
+ return 0;
+ #else
+- return au1xxx_gpio2_read(signal);
++ return au1xxx_gpio2_read(gpio);
+ #endif
+ else
+- return au1xxx_gpio1_read(signal);
++ return au1xxx_gpio1_read(gpio);
+ }
+
+-void au1xxx_gpio_write(int signal, int value)
++void au1xxx_gpio_set_value(unsigned gpio, int value)
+ {
+- if(signal >= 200)
++ if(gpio >= AU1XXX_GPIO_BASE)
+ #if defined(CONFIG_SOC_AU1000)
+ ;
+ #else
+- au1xxx_gpio2_write(signal, value);
++ au1xxx_gpio2_write(gpio, value);
+ #endif
+ else
+- au1xxx_gpio1_write(signal, value);
++ au1xxx_gpio1_write(gpio, value);
+ }
+
+-void au1xxx_gpio_tristate(int signal)
++int au1xxx_gpio_direction_input(unsigned gpio)
+ {
+- if(signal >= 200)
++ if (gpio >= AU1XXX_GPIO_BASE)
+ #if defined(CONFIG_SOC_AU1000)
+ ;
+ #else
+- au1xxx_gpio2_tristate(signal);
++ return au1xxx_gpio2_direction_input(gpio);
+ #endif
+ else
+- au1xxx_gpio1_tristate(signal);
++ return au1xxx_gpio1_direction_input(gpio);
+ }
+
+-void au1xxx_gpio1_set_inputs(void)
++int au1xxx_gpio_direction_output(unsigned gpio, int value)
+ {
+- gpio1->pininputen = 0;
++ if (gpio >= AU1XXX_GPIO_BASE)
++#if defined(CONFIG_SOC_AU1000)
++ ;
++#else
++ return au1xxx_gpio2_direction_output(gpio, value);
++#endif
++ else
++ return au1xxx_gpio1_direction_output(gpio, value);
+ }
+
+-EXPORT_SYMBOL(au1xxx_gpio1_set_inputs);
+-EXPORT_SYMBOL(au1xxx_gpio_tristate);
+-EXPORT_SYMBOL(au1xxx_gpio_write);
+-EXPORT_SYMBOL(au1xxx_gpio_read);
++EXPORT_SYMBOL(au1xxx_gpio_direction_output);
++EXPORT_SYMBOL(au1xxx_gpio_direction_input);
++EXPORT_SYMBOL(au1xxx_gpio_get_value);
++EXPORT_SYMBOL(au1xxx_gpio_set_value);
+--- linux-2.6.21.1/arch/mips/Kconfig 2007-04-27 23:49:26.000000000 +0200
++++ linux-2.6.21.1.new/arch/mips/Kconfig 2007-05-21 08:04:42.000000000 +0200
+@@ -1044,6 +1044,7 @@
+ select SYS_SUPPORTS_32BIT_KERNEL
+ select SYS_SUPPORTS_APM_EMULATION
+ select SYS_SUPPORTS_KGDB
++ select GENERIC_GPIO
+
+ config PNX8550
+ bool
+diff -urN linux-2.6.21.1/include/asm-mips/mach-au1x00/au1xxx_gpio.h linux-2.6.21.1.new/include/asm-mips/mach-au1x00/au1xxx_gpio.h
+--- linux-2.6.21.1/include/asm-mips/mach-au1x00/au1xxx_gpio.h 2007-04-27 23:49:26.000000000 +0200
++++ linux-2.6.21.1.new/include/asm-mips/mach-au1x00/au1xxx_gpio.h 1970-01-01 01:00:00.000000000 +0100
+@@ -1,20 +0,0 @@
+-#ifndef __AU1XXX_GPIO_H
+-#define __AU1XXX_GPIO_H
+-
+-void au1xxx_gpio1_set_inputs(void);
+-void au1xxx_gpio_tristate(int signal);
+-void au1xxx_gpio_write(int signal, int value);
+-int au1xxx_gpio_read(int signal);
+-
+-typedef volatile struct
+-{
+- u32 dir;
+- u32 reserved;
+- u32 output;
+- u32 pinstate;
+- u32 inten;
+- u32 enable;
+-
+-} AU1X00_GPIO2;
+-
+-#endif //__AU1XXX_GPIO_H
+diff -urN linux-2.6.21.1/include/asm-mips/mach-au1x00/gpio.h linux-2.6.21.1.new/include/asm-mips/mach-au1x00/gpio.h
+--- linux-2.6.21.1/include/asm-mips/mach-au1x00/gpio.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.21.1.new/include/asm-mips/mach-au1x00/gpio.h 2007-05-21 01:10:22.000000000 +0200
+@@ -0,0 +1,69 @@
++#ifndef _AU1XXX_GPIO_H_
++#define _AU1XXX_GPIO_H_
++
++#define AU1XXX_GPIO_BASE 200
++
++typedef volatile struct
++{
++ u32 dir;
++ u32 reserved;
++ u32 output;
++ u32 pinstate;
++ u32 inten;
++ u32 enable;
++
++} AU1X00_GPIO2;
++
++extern int au1xxx_gpio_get_value(unsigned gpio);
++extern void au1xxx_gpio_set_value(unsigned gpio, int value);
++extern int au1xxx_gpio_direction_input(unsigned gpio);
++extern int au1xxx_gpio_direction_output(unsigned gpio, int value);
++
++
++/* Wrappers for the arch-neutral GPIO API */
++
++static inline int gpio_request(unsigned gpio, const char *label)
++{
++ /* Not yet implemented */
++ return 0;
++}
++
++static inline void gpio_free(unsigned gpio)
++{
++ /* Not yet implemented */
++}
++
++static inline int gpio_direction_input(unsigned gpio)
++{
++ return au1xxx_gpio_direction_input(gpio);
++}
++
++static inline int gpio_direction_output(unsigned gpio, int value)
++{
++ return au1xxx_gpio_direction_output(gpio, value);
++}
++
++static inline int gpio_get_value(unsigned gpio)
++{
++ return au1xxx_gpio_get_value(gpio);
++}
++
++static inline void gpio_set_value(unsigned gpio, int value)
++{
++ au1xxx_gpio_set_value(gpio, value);
++}
++
++static inline int gpio_to_irq(unsigned gpio)
++{
++ return gpio;
++}
++
++static inline int irq_to_gpio(unsigned irq)
++{
++ return irq;
++}
++
++/* For cansleep */
++#include <asm-generic/gpio.h>
++
++#endif /* _AU1XXX_GPIO_H_ */
diff --git a/target/linux/generic-2.6/patches/013-mips_generic_gpio_support.patch b/target/linux/generic-2.6/patches/013-mips_generic_gpio_support.patch
new file mode 100644
index 000000000..5e0ae2e70
--- /dev/null
+++ b/target/linux/generic-2.6/patches/013-mips_generic_gpio_support.patch
@@ -0,0 +1,32 @@
+--- linux-2.6.21.1/arch/mips/Kconfig 2007-04-27 23:49:26.000000000 +0200
++++ linux-2.6.21.1-owrt/arch/mips/Kconfig 2007-05-24 13:51:13.000000000 +0200
+@@ -869,6 +869,10 @@
+ bool
+ default y
+
++config GENERIC_GPIO
++ bool
++ default n
++
+ config SCHED_NO_NO_OMIT_FRAME_POINTER
+ bool
+ default y
+--- linux-2.6.21.1/include/asm-mips/gpio.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.21.1-owrt/include/asm-mips/gpio.h 2007-05-24 13:51:13.000000000 +0200
+@@ -0,0 +1,6 @@
++#ifndef _ASM_MIPS_GPIO_H
++#define _ASM_MIPS_GPIO_H
++
++#include <gpio.h>
++
++#endif /* _ASM_MIPS_GPIO_H */
+--- linux-2.6.21.1/arch/mips/defconfig 2007-04-27 23:49:26.000000000 +0200
++++ linux-2.6.21.1-owrt/arch/mips/defconfig 2007-05-24 14:37:52.000000000 +0200
+@@ -71,6 +71,7 @@
+ CONFIG_GENERIC_HWEIGHT=y
+ CONFIG_GENERIC_CALIBRATE_DELAY=y
+ CONFIG_GENERIC_TIME=y
++CONFIG_GENERIC_GPIO=n
+ CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER=y
+ # CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ is not set
+ CONFIG_ARC=y