arch/arm/mach-pxa/lpc.c | 152 +++++++++++++++++++++++++++++++++++ drivers/input/serio/Kconfig | 2 drivers/input/serio/i8042-ite8711.h | 89 ++++++++++++++++++++ drivers/input/serio/i8042.h | 2 include/asm-arm/hardware/it8711.h | 33 ++++++++ 5 files changed, 277 insertions(+), 1 deletions(-) diff --git a/arch/arm/mach-pxa/lpc.c b/arch/arm/mach-pxa/lpc.c new file mode 100644 index 0000000..3a9d960 --- /dev/null +++ b/arch/arm/mach-pxa/lpc.c @@ -0,0 +1,152 @@ +/* + * + * BRIEF MODULE DESCRIPTION + * ITE Semi IT8712 Super I/O functions. + * + * Copyright 2001 MontaVista Software Inc. + * Author: MontaVista Software, Inc. + * ppopov@mvista.com or support@mvista.com + * + * 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 SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN + * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * 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. + */ + +#include +#include +#include +#include + +#ifndef TRUE +#define TRUE 1 +#endif + +#ifndef FALSE +#define FALSE 0 +#endif + + +void LPCEnterMBPnP(void) +{ + int i; + unsigned char key[4] = {0x87, 0x87}; + + for (i = 0; i<2; i++) + outb(key[i], LPC_KEY_ADDR); + +} + + + +void LPCExitMBPnP(void) +{ + outb(0x02, LPC_KEY_ADDR); + outb(0x02, LPC_DATA_ADDR); +} + +void LPCSetConfig(char LdnNumber, char Index, char data) +{ + LPCEnterMBPnP(); // Enter IT8711 MB PnP mode + outb(0x07, LPC_KEY_ADDR); + outb(LdnNumber, LPC_DATA_ADDR); + outb(Index, LPC_KEY_ADDR); + outb(data, LPC_DATA_ADDR); + LPCExitMBPnP(); +} + +char LPCGetConfig(char LdnNumber, char Index) +{ + char rtn; + + LPCEnterMBPnP(); // Enter IT8711 MB PnP mode + outb(0x07, LPC_KEY_ADDR); + outb(LdnNumber, LPC_DATA_ADDR); + outb(Index, LPC_KEY_ADDR); + rtn = inb(LPC_DATA_ADDR); + LPCExitMBPnP(); + return rtn; +} + +int SearchIT8711(void) +{ + unsigned char Id1, Id2; + unsigned short Id; + + LPCEnterMBPnP(); + outb(0x20, LPC_KEY_ADDR); //chip id byte 1 + Id1 = inb(LPC_DATA_ADDR); + outb(0x21, LPC_KEY_ADDR); // chip id byte 2 + Id2 = inb(LPC_DATA_ADDR); + Id = (Id1 << 8) | Id2; + LPCExitMBPnP(); +// printk("Reading 8711 ID result: %x\n", Id); + if (Id == 0x8711) + return TRUE; + else + return FALSE; +} + + +void InitLPCInterface(void) +{ + unsigned char bus, dev_fn; + unsigned long data; + int i; + + /* LPC function and not GPIO */ + IT8152_GPIO_GPCR12 = 0; + IT8152_GPIO_GPCR34 = 0; + + bus = 0; + dev_fn = 0xa; + + + /* pci cmd, SERR# Enable */ + IT8152_PCI_CFG_ADDR = + ((bus << IT_BUSNUM_SHF) | + (dev_fn << IT_FUNCNUM_SHF) | + ((0x4 / 4) << IT_REGNUM_SHF)); + data = IT8152_PCI_CFG_DATA; + data |= 0x0100; + IT8152_PCI_CFG_ADDR = + ((bus << IT_BUSNUM_SHF) | + (dev_fn << IT_FUNCNUM_SHF) | + ((0x4 / 4) << IT_REGNUM_SHF)); + IT8152_PCI_CFG_DATA = data; + + /* setup serial irq control register */ + IT8152_PCI_CFG_ADDR = + ((bus << IT_BUSNUM_SHF) | + (dev_fn << IT_FUNCNUM_SHF) | + ((0x48 / 4) << IT_REGNUM_SHF)); + data = IT8152_PCI_CFG_DATA; + data = (data & 0xffff00ff) | 0xc400; + IT8152_PCI_CFG_ADDR = + ((bus << IT_BUSNUM_SHF) | + (dev_fn << IT_FUNCNUM_SHF) | + ((0x48 / 4) << IT_REGNUM_SHF)); + IT8152_PCI_CFG_DATA = data; + + /* Enable subtructive decoding */ + IT8152_PCI_CFG_ADDR = + ((bus << IT_BUSNUM_SHF) | + (dev_fn << IT_FUNCNUM_SHF) | + ((0x4C / 4) << IT_REGNUM_SHF)); + IT8152_PCI_CFG_DATA = 0x3f0000f3; +} diff --git a/drivers/input/serio/Kconfig b/drivers/input/serio/Kconfig index 98acf17..49d562e 100644 --- a/drivers/input/serio/Kconfig +++ b/drivers/input/serio/Kconfig @@ -21,7 +21,7 @@ if SERIO config SERIO_I8042 tristate "i8042 PC Keyboard controller" if EMBEDDED || !X86 default y - depends on !PARISC && (!ARM || ARCH_SHARK || FOOTBRIDGE_HOST) && !M68K + depends on !PARISC && (!ARM || ARCH_SHARK || FOOTBRIDGE_HOST || CM_X255) && !M68K ---help--- i8042 is the chip over which the standard AT keyboard and PS/2 mouse are connected to the computer. If you use these devices, diff --git a/drivers/input/serio/i8042-ite8711.h b/drivers/input/serio/i8042-ite8711.h new file mode 100644 index 0000000..9e919e1 --- /dev/null +++ b/drivers/input/serio/i8042-ite8711.h @@ -0,0 +1,89 @@ +#ifndef _I8042_CM_X_2XX_IO_H +#define _I8042_CM_X_2XX_IO_H + +#include + +#include +#include + +#include +#include +/* + * 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. + */ + +/* + * Names. + */ + +#define I8042_KBD_PHYS_DESC "it8711/serio0" +#define I8042_AUX_PHYS_DESC "it8711/serio1" +#define I8042_MUX_PHYS_DESC "it8711/serio%d" + +/* + * IRQs. + */ +# define I8042_KBD_IRQ KEYBOARD_IRQ +# define I8042_AUX_IRQ MOUSE_IRQ + + +/* + * Register numbers. + */ + +#define I8042_COMMAND_REG KBD_COMMAND +#define I8042_STATUS_REG KBD_COMMAND +#define I8042_DATA_REG KBD_DATA + +static inline int i8042_read_data(void) +{ + return inb(I8042_DATA_REG); +} + +static inline int i8042_read_status(void) +{ + return inb(I8042_STATUS_REG); +} + +static inline void i8042_write_data(int val) +{ + outb(val, I8042_DATA_REG); +} + +static inline void i8042_write_command(int val) +{ + outb(val, I8042_COMMAND_REG); +} + +static inline int i8042_platform_init(void) +{ +/* + * On some platforms touching the i8042 data register region can do really + * bad things. Because of this the region is always reserved on such boxes. + */ +#if !defined(__sh__) && !defined(__alpha__) && !defined(__mips__) && !defined(CONFIG_PPC64) + if (!request_region(I8042_DATA_REG, 16, "i8042")) + return -EBUSY; +#endif + + i8042_reset = 1; + +#if defined(CONFIG_PPC64) + if (check_legacy_ioport(I8042_DATA_REG)) + return -EBUSY; + if (!request_region(I8042_DATA_REG, 16, "i8042")) + return -EBUSY; +#endif + return 0; +} + +static inline void i8042_platform_exit(void) +{ +#if !defined(__sh__) && !defined(__alpha__) && !defined(CONFIG_PPC64) + release_region(I8042_DATA_REG, 16); +#endif +} + +#endif /* _I8042_CM_X_2XX_IO_H */ diff --git a/drivers/input/serio/i8042.h b/drivers/input/serio/i8042.h index af526ab..3ae1333 100644 --- a/drivers/input/serio/i8042.h +++ b/drivers/input/serio/i8042.h @@ -24,6 +24,8 @@ #elif defined(CONFIG_SPARC) #include "i8042-sparcio.h" #elif defined(CONFIG_X86) || defined(CONFIG_IA64) #include "i8042-x86ia64io.h" +#elif defined(CONFIG_CM_X255) +#include "i8042-ite8711.h" #else #include "i8042-io.h" #endif diff --git a/include/asm-arm/hardware/it8711.h b/include/asm-arm/hardware/it8711.h new file mode 100644 index 0000000..7238697 --- /dev/null +++ b/include/asm-arm/hardware/it8711.h @@ -0,0 +1,33 @@ +#ifndef __IT8711_H__ +#define __IT8711_H__ + +#define LPC_BASE_ADDR IT8152_IO_BASE + +/* MB PnP configuration register */ +#define LPC_KEY_ADDR (LPC_BASE_ADDR + 0x2E) +#define LPC_DATA_ADDR (LPC_BASE_ADDR + 0x2F) + +/* Device LDN */ +#define LDN_NONE 0x00 +#define LDN_SERIAL1 0x01 +#define LDN_SERIAL2 0x02 +#define LDN_PARALLEL 0x03 +#define LDN_KEYBOARD 0x05 +#define LDN_MOUSE 0x06 +#define LDN_FLOPPY 0x07 + +#define IT8711_UART1_PORT (LPC_BASE_ADDR + 0x3F8) +#define IT8711_UART2_PORT (LPC_BASE_ADDR + 0x2F8) + +#define KBD_COMMAND (LPC_BASE_ADDR + 0x64) +#define KBD_DATA (LPC_BASE_ADDR + 0x60) + + +#ifndef ASM_ONLY + +void LPCSetConfig(char LdnNumber, char Index, char data); +char LPCGetConfig(char LdnNumber, char Index); + +#endif + +#endif