arch/mips/ite-boards/generic/it8172_setup.c

   1 /*
   2  * BRIEF MODULE DESCRIPTION
   3  *      IT8172/QED5231 board setup.
   4  *
   5  * Copyright 2000 MontaVista Software Inc.
   6  * Author: MontaVista Software, Inc.
   7  *              ppopov@mvista.com or source@mvista.com
   8  *
   9  *  This program is free software; you can redistribute  it and/or modify it
  10  *  under  the terms of  the GNU General  Public License as published by the
  11  *  Free Software Foundation;  either version 2 of the  License, or (at your
  12  *  option) any later version.
  13  *
  14  *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
  15  *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
  16  *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
  17  *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
  18  *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  19  *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
  20  *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
  21  *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
  22  *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  23  *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  24  *
  25  *  You should have received a copy of the  GNU General Public License along
  26  *  with this program; if not, write  to the Free Software Foundation, Inc.,
  27  *  675 Mass Ave, Cambridge, MA 02139, USA.
  28  */
  29 #include <linux/config.h>
  30 #include <linux/init.h>
  31 #include <linux/sched.h>
  32 #include <linux/ioport.h>
  33 #include <linux/serial_reg.h>
  34 #include <linux/major.h>
  35 #include <linux/kdev_t.h>
  36 #include <linux/root_dev.h>
  37 #include <linux/pm.h>
  38
  39 #include <asm/cpu.h>
  40 #include <asm/time.h>
  41 #include <asm/io.h>
  42 #include <asm/bootinfo.h>
  43 #include <asm/irq.h>
  44 #include <asm/mipsregs.h>
  45 #include <asm/reboot.h>
  46 #include <asm/traps.h>
  47 #include <asm/it8172/it8172.h>
  48 #include <asm/it8712.h>
  49
  50 extern struct resource ioport_resource;
  51 #ifdef CONFIG_SERIO_I8042
  52 int init_8712_keyboard(void);
  53 #endif
  54
  55 extern int SearchIT8712(void);
  56 extern void InitLPCInterface(void);
  57 extern char * __init prom_getcmdline(void);
  58 extern void it8172_restart(char *command);
  59 extern void it8172_halt(void);
  60 extern void it8172_power_off(void);
  61
  62 extern void (*board_time_init)(void);
  63 extern void (*board_timer_setup)(struct irqaction *irq);
  64 extern void it8172_time_init(void);
  65 extern void it8172_timer_setup(struct irqaction *irq);
  66
  67 #ifdef CONFIG_IT8172_REVC
  68 struct {
  69     struct resource ram;
  70     struct resource pci_mem;
  71     struct resource pci_io;
  72     struct resource flash;
  73     struct resource boot;
  74 } it8172_resources = {
  75         {
  76                 .start  = 0,                            /* to be initted */
  77                 .end    = 0,
  78                 .name   = "RAM",
  79                 .flags  = IORESOURCE_MEM
  80         }, {
  81                 .start  = 0x10000000,
  82                 .end    = 0x13FFFFFF,
  83                 .name   = "PCI Mem",
  84                 .flags  = IORESOURCE_MEM
  85         }, {
  86                 .start  = 0x14000000,
  87                 .end    = 0x17FFFFFF
  88                 .name   = "PCI I/O",
  89         }, {
  90                 .start  = 0x08000000,
  91                 .end    = 0x0CFFFFFF
  92                 .name   = "Flash",
  93         }, {
  94                 .start  = 0x1FC00000,
  95                 .end    = 0x1FFFFFFF
  96                 .name   = "Boot ROM",
  97         }
  98 };
  99 #else
 100 struct {
 101     struct resource ram;
 102     struct resource pci_mem0;
 103     struct resource pci_mem1;
 104     struct resource pci_io;
 105     struct resource pci_mem2;
 106     struct resource pci_mem3;
 107     struct resource flash;
 108     struct resource boot;
 109 } it8172_resources = {
 110         {
 111                 .start  = 0,                            /* to be initted */
 112                 .end    = 0,
 113                 .name   = "RAM",
 114                 .flags  = IORESOURCE_MEM
 115         }, {
 116                 .start  = 0x0C000000,
 117                 .end    = 0x0FFFFFFF,
 118                 .name   = "PCI Mem0",
 119                 .flags  = IORESOURCE_MEM
 120          }, {
 121                 .start  = 0x10000000,
 122                 .end    = 0x13FFFFFF,
 123                 .name   = "PCI Mem1",
 124                 .flags  = IORESOURCE_MEM
 125          }, {
 126                 .start  = 0x14000000,
 127                 .end    = 0x17FFFFFF
 128                 .name   = "PCI I/O",
 129         }, {
 130                 .start  = 0x1A000000,
 131                 .end    = 0x1BFFFFFF,
 132                 .name   = "PCI Mem2",
 133                 .flags  = IORESOURCE_MEM
 134         }, {
 135                 .start  = 0x1C000000,
 136                 .end    = 0x1FBFFFFF,
 137                 .name   = "PCI Mem3",
 138                 .flags  = IORESOURCE_MEM
 139         }, {
 140                 .start  = 0x08000000,
 141                 .end    = 0x0CFFFFFF
 142                 .name   = "Flash",
 143         }, {
 144                 .start  = 0x1FC00000,
 145                 .end    = 0x1FFFFFFF
 146                 .name   = "Boot ROM",
 147         }
 148 };
 149 #endif
 150
 151
 152 void __init it8172_init_ram_resource(unsigned long memsize)
 153 {
 154         it8172_resources.ram.end = memsize;
 155 }
 156
 157 void __init plat_mem_setup(void)
 158 {
 159         unsigned short dsr;
 160         char *argptr;
 161
 162         argptr = prom_getcmdline();
 163 #ifdef CONFIG_SERIAL_CONSOLE
 164         if ((argptr = strstr(argptr, "console=")) == NULL) {
 165                 argptr = prom_getcmdline();
 166                 strcat(argptr, " console=ttyS0,115200");
 167         }
 168 #endif
 169
 170         clear_c0_status(ST0_FR);
 171
 172         board_time_init = it8172_time_init;
 173         board_timer_setup = it8172_timer_setup;
 174
 175         _machine_restart = it8172_restart;
 176         _machine_halt = it8172_halt;
 177         pm_power_off = it8172_power_off;
 178
 179         /*
 180          * IO/MEM resources.
 181          *
 182          * revisit this area.
 183          */
 184         set_io_port_base(KSEG1);
 185         ioport_resource.start = it8172_resources.pci_io.start;
 186         ioport_resource.end = it8172_resources.pci_io.end;
 187 #ifdef CONFIG_IT8172_REVC
 188         iomem_resource.start = it8172_resources.pci_mem.start;
 189         iomem_resource.end = it8172_resources.pci_mem.end;
 190 #else
 191         iomem_resource.start = it8172_resources.pci_mem0.start;
 192         iomem_resource.end = it8172_resources.pci_mem3.end;
 193 #endif
 194
 195 #ifdef CONFIG_BLK_DEV_INITRD
 196         ROOT_DEV = Root_RAM0;
 197 #endif
 198
 199         /*
 200          * Pull enabled devices out of standby
 201          */
 202         IT_IO_READ16(IT_PM_DSR, dsr);
 203
 204         /*
 205          * Fixme: This breaks when these drivers are modules!!!
 206          */
 207 #ifdef CONFIG_SOUND_IT8172
 208         dsr &= ~IT_PM_DSR_ACSB;
 209 #else
 210         dsr |= IT_PM_DSR_ACSB;
 211 #endif
 212 #ifdef CONFIG_BLK_DEV_IT8172
 213         dsr &= ~IT_PM_DSR_IDESB;
 214 #else
 215         dsr |= IT_PM_DSR_IDESB;
 216 #endif
 217         IT_IO_WRITE16(IT_PM_DSR, dsr);
 218
 219         InitLPCInterface();
 220
 221 #ifdef CONFIG_MIPS_ITE8172
 222         if (SearchIT8712()) {
 223                 printk("Found IT8712 Super IO\n");
 224                 /* enable IT8712 serial port */
 225                 LPCSetConfig(LDN_SERIAL1, 0x30, 0x01); /* enable */
 226                 LPCSetConfig(LDN_SERIAL1, 0x23, 0x01); /* clock selection */
 227 #ifdef CONFIG_SERIO_I8042
 228                 if (init_8712_keyboard()) {
 229                         printk("Unable to initialize keyboard\n");
 230                         LPCSetConfig(LDN_KEYBOARD, 0x30, 0x0); /* disable keyboard */
 231                 } else {
 232                         LPCSetConfig(LDN_KEYBOARD, 0x30, 0x1); /* enable keyboard */
 233                         LPCSetConfig(LDN_KEYBOARD, 0xf0, 0x2);
 234                         LPCSetConfig(LDN_KEYBOARD, 0x71, 0x3);
 235
 236                         LPCSetConfig(LDN_MOUSE, 0x30, 0x1); /* enable mouse */
 237
 238                         LPCSetConfig(0x4, 0x30, 0x1);
 239                         LPCSetConfig(0x4, 0xf4, LPCGetConfig(0x4, 0xf4) | 0x80);
 240
 241                         if ((LPCGetConfig(LDN_KEYBOARD, 0x30) == 0) ||
 242                                         (LPCGetConfig(LDN_MOUSE, 0x30) == 0))
 243                                 printk("Error: keyboard or mouse not enabled\n");
 244
 245                 }
 246 #endif
 247         }
 248         else {
 249                 printk("IT8712 Super IO not found\n");
 250         }
 251 #endif
 252
 253 #ifdef CONFIG_IT8172_CIR
 254         {
 255                 unsigned long data;
 256                 //printk("Enabling CIR0\n");
 257                 IT_IO_READ16(IT_PM_DSR, data);
 258                 data &= ~IT_PM_DSR_CIR0SB;
 259                 IT_IO_WRITE16(IT_PM_DSR, data);
 260                 //printk("DSR register: %x\n", (unsigned)IT_IO_READ16(IT_PM_DSR, data));
 261         }
 262 #endif
 263 #ifdef CONFIG_IT8172_SCR0
 264         {
 265                 unsigned i;
 266                 /* Enable Smart Card Reader 0 */
 267                 /* First power it up */
 268                 IT_IO_READ16(IT_PM_DSR, i);
 269                 i &= ~IT_PM_DSR_SCR0SB;
 270                 IT_IO_WRITE16(IT_PM_DSR, i);
 271                 /* Then initialize its registers */
 272                 outb(( IT_SCR_SFR_GATE_UART_OFF     << IT_SCR_SFR_GATE_UART_BIT
 273                       |IT_SCR_SFR_FET_CHARGE_213_US << IT_SCR_SFR_FET_CHARGE_BIT
 274                       |IT_SCR_SFR_CARD_FREQ_3_5_MHZ << IT_SCR_SFR_CARD_FREQ_BIT
 275                       |IT_SCR_SFR_FET_ACTIVE_INVERT << IT_SCR_SFR_FET_ACTIVE_BIT
 276                       |IT_SCR_SFR_ENABLE_ON         << IT_SCR_SFR_ENABLE_BIT),
 277                      IT8172_PCI_IO_BASE + IT_SCR0_BASE + IT_SCR_SFR);
 278                 outb(IT_SCR_SCDR_RESET_MODE_ASYNC << IT_SCR_SCDR_RESET_MODE_BIT,
 279                      IT8172_PCI_IO_BASE + IT_SCR0_BASE + IT_SCR_SCDR);
 280         }
 281 #endif /* CONFIG_IT8172_SCR0 */
 282 #ifdef CONFIG_IT8172_SCR1
 283         {
 284                 unsigned i;
 285                 /* Enable Smart Card Reader 1 */
 286                 /* First power it up */
 287                 IT_IO_READ16(IT_PM_DSR, i);
 288                 i &= ~IT_PM_DSR_SCR1SB;
 289                 IT_IO_WRITE16(IT_PM_DSR, i);
 290                 /* Then initialize its registers */
 291                 outb(( IT_SCR_SFR_GATE_UART_OFF     << IT_SCR_SFR_GATE_UART_BIT
 292                       |IT_SCR_SFR_FET_CHARGE_213_US << IT_SCR_SFR_FET_CHARGE_BIT
 293                       |IT_SCR_SFR_CARD_FREQ_3_5_MHZ << IT_SCR_SFR_CARD_FREQ_BIT
 294                       |IT_SCR_SFR_FET_ACTIVE_INVERT << IT_SCR_SFR_FET_ACTIVE_BIT
 295                       |IT_SCR_SFR_ENABLE_ON         << IT_SCR_SFR_ENABLE_BIT),
 296                      IT8172_PCI_IO_BASE + IT_SCR1_BASE + IT_SCR_SFR);
 297                 outb(IT_SCR_SCDR_RESET_MODE_ASYNC << IT_SCR_SCDR_RESET_MODE_BIT,
 298                      IT8172_PCI_IO_BASE + IT_SCR1_BASE + IT_SCR_SCDR);
 299         }
 300 #endif /* CONFIG_IT8172_SCR1 */
 301 }
 302
 303 #ifdef CONFIG_SERIO_I8042
 304 /*
 305  * According to the ITE Special BIOS Note for waking up the
 306  * keyboard controller...
 307  */
 308 static int init_8712_keyboard(void)
 309 {
 310         unsigned int cmd_port = 0x14000064;
 311         unsigned int data_port = 0x14000060;
 312                                  ^^^^^^^^^^^
 313         Somebody here doesn't grok the concept of io ports.
 314
 315         unsigned char data;
 316         int i;
 317
 318         outb(0xaa, cmd_port); /* send self-test cmd */
 319         i = 0;
 320         while (!(inb(cmd_port) & 0x1)) { /* wait output buffer full */
 321                 i++;
 322                 if (i > 0xffffff)
 323                         return 1;
 324         }
 325
 326         data = inb(data_port);
 327         outb(0xcb, cmd_port); /* set ps2 mode */
 328         while (inb(cmd_port) & 0x2) { /* wait while input buffer full */
 329                 i++;
 330                 if (i > 0xffffff)
 331                         return 1;
 332         }
 333         outb(0x01, data_port);
 334         while (inb(cmd_port) & 0x2) { /* wait while input buffer full */
 335                 i++;
 336                 if (i > 0xffffff)
 337                         return 1;
 338         }
 339
 340         outb(0x60, cmd_port); /* write 8042 command byte */
 341         while (inb(cmd_port) & 0x2) { /* wait while input buffer full */
 342                 i++;
 343                 if (i > 0xffffff)
 344                         return 1;
 345         }
 346         outb(0x45, data_port); /* at interface, keyboard enabled, system flag */
 347         while (inb(cmd_port) & 0x2) { /* wait while input buffer full */
 348                 i++;
 349                 if (i > 0xffffff)
 350                         return 1;
 351         }
 352
 353         outb(0xae, cmd_port); /* enable interface */
 354         return 0;
 355 }
 356 #endif