310 lines
9 KiB
C
310 lines
9 KiB
C
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/*
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* BRIEF MODULE DESCRIPTION
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* IT8172/QED5231 board setup.
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*
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* Copyright 2000 MontaVista Software Inc.
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* Author: MontaVista Software, Inc.
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* ppopov@mvista.com or source@mvista.com
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
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* NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <linux/config.h>
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#include <linux/init.h>
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#include <linux/sched.h>
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#include <linux/ioport.h>
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#include <linux/serial_reg.h>
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#include <linux/major.h>
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#include <linux/kdev_t.h>
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#include <linux/root_dev.h>
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#include <asm/cpu.h>
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#include <asm/time.h>
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#include <asm/io.h>
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#include <asm/bootinfo.h>
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#include <asm/irq.h>
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#include <asm/mipsregs.h>
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#include <asm/reboot.h>
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#include <asm/traps.h>
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#include <asm/it8172/it8172.h>
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#include <asm/it8712.h>
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extern struct resource ioport_resource;
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#ifdef CONFIG_SERIO_I8042
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int init_8712_keyboard(void);
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#endif
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extern int SearchIT8712(void);
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extern void InitLPCInterface(void);
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extern char * __init prom_getcmdline(void);
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extern void it8172_restart(char *command);
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extern void it8172_halt(void);
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extern void it8172_power_off(void);
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extern void (*board_time_init)(void);
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extern void (*board_timer_setup)(struct irqaction *irq);
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extern void it8172_time_init(void);
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extern void it8172_timer_setup(struct irqaction *irq);
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#ifdef CONFIG_IT8172_REVC
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struct {
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struct resource ram;
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struct resource pci_mem;
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struct resource pci_io;
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struct resource flash;
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struct resource boot;
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} it8172_resources = {
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{ "RAM", 0, 0, IORESOURCE_MEM }, /* to be initted */
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{ "PCI Mem", 0x10000000, 0x13FFFFFF, IORESOURCE_MEM },
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{ "PCI I/O", 0x14000000, 0x17FFFFFF },
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{ "Flash", 0x08000000, 0x0CFFFFFF },
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{ "Boot ROM", 0x1FC00000, 0x1FFFFFFF }
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};
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#else
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struct {
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struct resource ram;
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struct resource pci_mem0;
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struct resource pci_mem1;
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struct resource pci_io;
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struct resource pci_mem2;
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struct resource pci_mem3;
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struct resource flash;
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struct resource boot;
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} it8172_resources = {
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{ "RAM", 0, 0, IORESOURCE_MEM }, /* to be initted */
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{ "PCI Mem0", 0x0C000000, 0x0FFFFFFF, IORESOURCE_MEM },
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{ "PCI Mem1", 0x10000000, 0x13FFFFFF, IORESOURCE_MEM },
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{ "PCI I/O", 0x14000000, 0x17FFFFFF },
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{ "PCI Mem2", 0x1A000000, 0x1BFFFFFF, IORESOURCE_MEM },
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{ "PCI Mem3", 0x1C000000, 0x1FBFFFFF, IORESOURCE_MEM },
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{ "Flash", 0x08000000, 0x0CFFFFFF },
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{ "Boot ROM", 0x1FC00000, 0x1FFFFFFF }
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};
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#endif
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void __init it8172_init_ram_resource(unsigned long memsize)
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{
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it8172_resources.ram.end = memsize;
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}
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static void __init it8172_setup(void)
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{
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unsigned short dsr;
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char *argptr;
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argptr = prom_getcmdline();
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#ifdef CONFIG_SERIAL_CONSOLE
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if ((argptr = strstr(argptr, "console=")) == NULL) {
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argptr = prom_getcmdline();
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strcat(argptr, " console=ttyS0,115200");
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}
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#endif
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clear_c0_status(ST0_FR);
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board_time_init = it8172_time_init;
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board_timer_setup = it8172_timer_setup;
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_machine_restart = it8172_restart;
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_machine_halt = it8172_halt;
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_machine_power_off = it8172_power_off;
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/*
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* IO/MEM resources.
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*
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* revisit this area.
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*/
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set_io_port_base(KSEG1);
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ioport_resource.start = it8172_resources.pci_io.start;
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ioport_resource.end = it8172_resources.pci_io.end;
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#ifdef CONFIG_IT8172_REVC
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iomem_resource.start = it8172_resources.pci_mem.start;
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iomem_resource.end = it8172_resources.pci_mem.end;
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#else
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iomem_resource.start = it8172_resources.pci_mem0.start;
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iomem_resource.end = it8172_resources.pci_mem3.end;
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#endif
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#ifdef CONFIG_BLK_DEV_INITRD
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ROOT_DEV = Root_RAM0;
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#endif
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/*
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* Pull enabled devices out of standby
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*/
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IT_IO_READ16(IT_PM_DSR, dsr);
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/*
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* Fixme: This breaks when these drivers are modules!!!
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*/
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#ifdef CONFIG_SOUND_IT8172
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dsr &= ~IT_PM_DSR_ACSB;
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#else
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dsr |= IT_PM_DSR_ACSB;
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#endif
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#ifdef CONFIG_BLK_DEV_IT8172
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dsr &= ~IT_PM_DSR_IDESB;
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#else
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dsr |= IT_PM_DSR_IDESB;
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#endif
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IT_IO_WRITE16(IT_PM_DSR, dsr);
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InitLPCInterface();
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#ifdef CONFIG_MIPS_ITE8172
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if (SearchIT8712()) {
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printk("Found IT8712 Super IO\n");
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/* enable IT8712 serial port */
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LPCSetConfig(LDN_SERIAL1, 0x30, 0x01); /* enable */
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LPCSetConfig(LDN_SERIAL1, 0x23, 0x01); /* clock selection */
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#ifdef CONFIG_SERIO_I8042
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if (init_8712_keyboard()) {
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printk("Unable to initialize keyboard\n");
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LPCSetConfig(LDN_KEYBOARD, 0x30, 0x0); /* disable keyboard */
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} else {
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LPCSetConfig(LDN_KEYBOARD, 0x30, 0x1); /* enable keyboard */
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LPCSetConfig(LDN_KEYBOARD, 0xf0, 0x2);
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LPCSetConfig(LDN_KEYBOARD, 0x71, 0x3);
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LPCSetConfig(LDN_MOUSE, 0x30, 0x1); /* enable mouse */
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LPCSetConfig(0x4, 0x30, 0x1);
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LPCSetConfig(0x4, 0xf4, LPCGetConfig(0x4, 0xf4) | 0x80);
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if ((LPCGetConfig(LDN_KEYBOARD, 0x30) == 0) ||
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(LPCGetConfig(LDN_MOUSE, 0x30) == 0))
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printk("Error: keyboard or mouse not enabled\n");
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}
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#endif
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}
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else {
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printk("IT8712 Super IO not found\n");
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}
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#endif
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#ifdef CONFIG_IT8172_CIR
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{
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unsigned long data;
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//printk("Enabling CIR0\n");
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IT_IO_READ16(IT_PM_DSR, data);
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data &= ~IT_PM_DSR_CIR0SB;
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IT_IO_WRITE16(IT_PM_DSR, data);
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//printk("DSR register: %x\n", (unsigned)IT_IO_READ16(IT_PM_DSR, data));
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}
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#endif
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#ifdef CONFIG_IT8172_SCR0
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{
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unsigned i;
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/* Enable Smart Card Reader 0 */
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/* First power it up */
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IT_IO_READ16(IT_PM_DSR, i);
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i &= ~IT_PM_DSR_SCR0SB;
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IT_IO_WRITE16(IT_PM_DSR, i);
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/* Then initialize its registers */
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outb(( IT_SCR_SFR_GATE_UART_OFF << IT_SCR_SFR_GATE_UART_BIT
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|IT_SCR_SFR_FET_CHARGE_213_US << IT_SCR_SFR_FET_CHARGE_BIT
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|IT_SCR_SFR_CARD_FREQ_3_5_MHZ << IT_SCR_SFR_CARD_FREQ_BIT
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|IT_SCR_SFR_FET_ACTIVE_INVERT << IT_SCR_SFR_FET_ACTIVE_BIT
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|IT_SCR_SFR_ENABLE_ON << IT_SCR_SFR_ENABLE_BIT),
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IT8172_PCI_IO_BASE + IT_SCR0_BASE + IT_SCR_SFR);
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outb(IT_SCR_SCDR_RESET_MODE_ASYNC << IT_SCR_SCDR_RESET_MODE_BIT,
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IT8172_PCI_IO_BASE + IT_SCR0_BASE + IT_SCR_SCDR);
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}
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#endif /* CONFIG_IT8172_SCR0 */
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#ifdef CONFIG_IT8172_SCR1
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{
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unsigned i;
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/* Enable Smart Card Reader 1 */
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/* First power it up */
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IT_IO_READ16(IT_PM_DSR, i);
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i &= ~IT_PM_DSR_SCR1SB;
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IT_IO_WRITE16(IT_PM_DSR, i);
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/* Then initialize its registers */
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outb(( IT_SCR_SFR_GATE_UART_OFF << IT_SCR_SFR_GATE_UART_BIT
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|IT_SCR_SFR_FET_CHARGE_213_US << IT_SCR_SFR_FET_CHARGE_BIT
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|IT_SCR_SFR_CARD_FREQ_3_5_MHZ << IT_SCR_SFR_CARD_FREQ_BIT
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|IT_SCR_SFR_FET_ACTIVE_INVERT << IT_SCR_SFR_FET_ACTIVE_BIT
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|IT_SCR_SFR_ENABLE_ON << IT_SCR_SFR_ENABLE_BIT),
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IT8172_PCI_IO_BASE + IT_SCR1_BASE + IT_SCR_SFR);
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outb(IT_SCR_SCDR_RESET_MODE_ASYNC << IT_SCR_SCDR_RESET_MODE_BIT,
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IT8172_PCI_IO_BASE + IT_SCR1_BASE + IT_SCR_SCDR);
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}
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#endif /* CONFIG_IT8172_SCR1 */
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}
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early_initcall(it8172_setup);
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#ifdef CONFIG_SERIO_I8042
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/*
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* According to the ITE Special BIOS Note for waking up the
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* keyboard controller...
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*/
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static int init_8712_keyboard(void)
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{
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unsigned int cmd_port = 0x14000064;
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unsigned int data_port = 0x14000060;
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^^^^^^^^^^^
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Somebody here doesn't grok the concept of io ports.
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unsigned char data;
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int i;
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outb(0xaa, cmd_port); /* send self-test cmd */
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i = 0;
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while (!(inb(cmd_port) & 0x1)) { /* wait output buffer full */
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i++;
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if (i > 0xffffff)
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return 1;
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}
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data = inb(data_port);
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outb(0xcb, cmd_port); /* set ps2 mode */
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while (inb(cmd_port) & 0x2) { /* wait while input buffer full */
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i++;
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if (i > 0xffffff)
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return 1;
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}
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outb(0x01, data_port);
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while (inb(cmd_port) & 0x2) { /* wait while input buffer full */
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i++;
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if (i > 0xffffff)
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return 1;
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}
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outb(0x60, cmd_port); /* write 8042 command byte */
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while (inb(cmd_port) & 0x2) { /* wait while input buffer full */
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i++;
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if (i > 0xffffff)
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return 1;
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}
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outb(0x45, data_port); /* at interface, keyboard enabled, system flag */
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while (inb(cmd_port) & 0x2) { /* wait while input buffer full */
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i++;
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if (i > 0xffffff)
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return 1;
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}
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outb(0xae, cmd_port); /* enable interface */
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return 0;
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}
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#endif
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