Yinghai Lu | 13f1c2a | 2005-07-08 02:49:49 +0000 | [diff] [blame] | 1 | /* |
| 2 | * (C) 2004 Linux Networx |
| 3 | */ |
| 4 | #include <console/console.h> |
| 5 | #include <device/device.h> |
| 6 | #include <device/pci.h> |
| 7 | #include <device/pci_ids.h> |
| 8 | #include <device/pci_ops.h> |
| 9 | #include <pc80/mc146818rtc.h> |
| 10 | #include <pc80/isa-dma.h> |
| 11 | #include <arch/io.h> |
Stefan Reinauer | 966d0e6 | 2006-04-06 21:37:10 +0000 | [diff] [blame^] | 12 | #include "i82801er.h" |
Yinghai Lu | 13f1c2a | 2005-07-08 02:49:49 +0000 | [diff] [blame] | 13 | |
| 14 | #define ACPI_BAR 0x40 |
| 15 | #define GPIO_BAR 0x58 |
| 16 | |
| 17 | #define NMI_OFF 0 |
| 18 | #define MAINBOARD_POWER_OFF 0 |
| 19 | #define MAINBOARD_POWER_ON 1 |
| 20 | |
| 21 | #ifndef MAINBOARD_POWER_ON_AFTER_POWER_FAIL |
| 22 | #define MAINBOARD_POWER_ON_AFTER_POWER_FAIL MAINBOARD_POWER_ON |
| 23 | #endif |
| 24 | |
| 25 | #define ALL (0xff << 24) |
| 26 | #define NONE (0) |
| 27 | #define DISABLED (1 << 16) |
| 28 | #define ENABLED (0 << 16) |
| 29 | #define TRIGGER_EDGE (0 << 15) |
| 30 | #define TRIGGER_LEVEL (1 << 15) |
| 31 | #define POLARITY_HIGH (0 << 13) |
| 32 | #define POLARITY_LOW (1 << 13) |
| 33 | #define PHYSICAL_DEST (0 << 11) |
| 34 | #define LOGICAL_DEST (1 << 11) |
| 35 | #define ExtINT (7 << 8) |
| 36 | #define NMI (4 << 8) |
| 37 | #define SMI (2 << 8) |
| 38 | #define INT (1 << 8) |
| 39 | |
| 40 | static void setup_ioapic(void) |
| 41 | { |
| 42 | int i; |
| 43 | unsigned long value_low, value_high; |
| 44 | unsigned long ioapic_base = 0xfec00000; |
| 45 | volatile unsigned long *l; |
| 46 | unsigned interrupts; |
| 47 | |
| 48 | l = (unsigned long *) ioapic_base; |
| 49 | |
| 50 | l[0] = 0x01; |
| 51 | interrupts = (l[04] >> 16) & 0xff; |
| 52 | for (i = 0; i < interrupts; i++) { |
| 53 | l[0] = (i * 2) + 0x10; |
| 54 | l[4] = DISABLED; |
| 55 | value_low = l[4]; |
| 56 | l[0] = (i * 2) + 0x11; |
| 57 | l[4] = NONE; /* Should this be an address? */ |
| 58 | value_high = l[4]; |
| 59 | if (value_low == 0xffffffff) { |
| 60 | printk_warning("IO APIC not responding.\n"); |
| 61 | return; |
| 62 | } |
| 63 | } |
| 64 | |
| 65 | /* Put the ioapic in virtual wire mode */ |
| 66 | l[0] = 0 + 0x10; |
| 67 | l[4] = ENABLED | TRIGGER_EDGE | POLARITY_HIGH | PHYSICAL_DEST | ExtINT; |
| 68 | } |
| 69 | |
| 70 | #define SERIRQ_CNTL 0x64 |
Stefan Reinauer | 966d0e6 | 2006-04-06 21:37:10 +0000 | [diff] [blame^] | 71 | static void i82801er_enable_serial_irqs(device_t dev) |
Yinghai Lu | 13f1c2a | 2005-07-08 02:49:49 +0000 | [diff] [blame] | 72 | { |
| 73 | /* set packet length and toggle silent mode bit */ |
| 74 | pci_write_config8(dev, SERIRQ_CNTL, (1 << 7)|(1 << 6)|((21 - 17) << 2)|(0 << 0)); |
| 75 | pci_write_config8(dev, SERIRQ_CNTL, (1 << 7)|(0 << 6)|((21 - 17) << 2)|(0 << 0)); |
| 76 | } |
| 77 | |
| 78 | #define PCI_DMA_CFG 0x90 |
Stefan Reinauer | 966d0e6 | 2006-04-06 21:37:10 +0000 | [diff] [blame^] | 79 | static void i82801er_pci_dma_cfg(device_t dev) |
Yinghai Lu | 13f1c2a | 2005-07-08 02:49:49 +0000 | [diff] [blame] | 80 | { |
| 81 | /* Set PCI DMA CFG to lpc I/F DMA */ |
| 82 | pci_write_config16(dev, PCI_DMA_CFG, 0xfcff); |
| 83 | } |
| 84 | |
| 85 | #define LPC_EN 0xe6 |
Stefan Reinauer | 966d0e6 | 2006-04-06 21:37:10 +0000 | [diff] [blame^] | 86 | static void i82801er_enable_lpc(device_t dev) |
Yinghai Lu | 13f1c2a | 2005-07-08 02:49:49 +0000 | [diff] [blame] | 87 | { |
| 88 | /* lpc i/f enable */ |
| 89 | pci_write_config8(dev, LPC_EN, 0x0d); |
| 90 | } |
| 91 | |
Stefan Reinauer | 966d0e6 | 2006-04-06 21:37:10 +0000 | [diff] [blame^] | 92 | typedef struct southbridge_intel_i82801er_config config_t; |
Yinghai Lu | 13f1c2a | 2005-07-08 02:49:49 +0000 | [diff] [blame] | 93 | |
Stefan Reinauer | 966d0e6 | 2006-04-06 21:37:10 +0000 | [diff] [blame^] | 94 | static void set_i82801er_gpio_use_sel( |
Yinghai Lu | 13f1c2a | 2005-07-08 02:49:49 +0000 | [diff] [blame] | 95 | device_t dev, struct resource *res, config_t *config) |
| 96 | { |
| 97 | uint32_t gpio_use_sel, gpio_use_sel2; |
| 98 | int i; |
| 99 | |
| 100 | gpio_use_sel = 0x1A003180; |
| 101 | gpio_use_sel2 = 0x00000007; |
| 102 | for(i = 0; i < 64; i++) { |
| 103 | int val; |
| 104 | switch(config->gpio[i] & ICH5R_GPIO_USE_MASK) { |
| 105 | case ICH5R_GPIO_USE_AS_NATIVE: val = 0; break; |
| 106 | case ICH5R_GPIO_USE_AS_GPIO: val = 1; break; |
| 107 | default: |
| 108 | continue; |
| 109 | } |
| 110 | /* The caller is responsible for not playing with unimplemented bits */ |
| 111 | if (i < 32) { |
| 112 | gpio_use_sel &= ~( 1 << i); |
| 113 | gpio_use_sel |= (val << i); |
| 114 | } else { |
| 115 | gpio_use_sel2 &= ~( 1 << (i - 32)); |
| 116 | gpio_use_sel2 |= (val << (i - 32)); |
| 117 | } |
| 118 | } |
| 119 | outl(gpio_use_sel, res->base + 0x00); |
| 120 | outl(gpio_use_sel2, res->base + 0x30); |
| 121 | } |
| 122 | |
Stefan Reinauer | 966d0e6 | 2006-04-06 21:37:10 +0000 | [diff] [blame^] | 123 | static void set_i82801er_gpio_direction( |
Yinghai Lu | 13f1c2a | 2005-07-08 02:49:49 +0000 | [diff] [blame] | 124 | device_t dev, struct resource *res, config_t *config) |
| 125 | { |
| 126 | uint32_t gpio_io_sel, gpio_io_sel2; |
| 127 | int i; |
| 128 | |
| 129 | gpio_io_sel = 0x0000ffff; |
| 130 | gpio_io_sel2 = 0x00000300; |
| 131 | for(i = 0; i < 64; i++) { |
| 132 | int val; |
| 133 | switch(config->gpio[i] & ICH5R_GPIO_SEL_MASK) { |
| 134 | case ICH5R_GPIO_SEL_OUTPUT: val = 0; break; |
| 135 | case ICH5R_GPIO_SEL_INPUT: val = 1; break; |
| 136 | default: |
| 137 | continue; |
| 138 | } |
| 139 | /* The caller is responsible for not playing with unimplemented bits */ |
| 140 | if (i < 32) { |
| 141 | gpio_io_sel &= ~( 1 << i); |
| 142 | gpio_io_sel |= (val << i); |
| 143 | } else { |
| 144 | gpio_io_sel2 &= ~( 1 << (i - 32)); |
| 145 | gpio_io_sel2 |= (val << (i - 32)); |
| 146 | } |
| 147 | } |
| 148 | outl(gpio_io_sel, res->base + 0x04); |
| 149 | outl(gpio_io_sel2, res->base + 0x34); |
| 150 | } |
| 151 | |
Stefan Reinauer | 966d0e6 | 2006-04-06 21:37:10 +0000 | [diff] [blame^] | 152 | static void set_i82801er_gpio_level( |
Yinghai Lu | 13f1c2a | 2005-07-08 02:49:49 +0000 | [diff] [blame] | 153 | device_t dev, struct resource *res, config_t *config) |
| 154 | { |
| 155 | uint32_t gpio_lvl, gpio_lvl2; |
| 156 | uint32_t gpio_blink; |
| 157 | int i; |
| 158 | |
| 159 | gpio_lvl = 0x1b3f0000; |
| 160 | gpio_blink = 0x00040000; |
| 161 | gpio_lvl2 = 0x00030207; |
| 162 | for(i = 0; i < 64; i++) { |
| 163 | int val, blink; |
| 164 | switch(config->gpio[i] & ICH5R_GPIO_LVL_MASK) { |
| 165 | case ICH5R_GPIO_LVL_LOW: val = 0; blink = 0; break; |
| 166 | case ICH5R_GPIO_LVL_HIGH: val = 1; blink = 0; break; |
| 167 | case ICH5R_GPIO_LVL_BLINK: val = 1; blink = 1; break; |
| 168 | default: |
| 169 | continue; |
| 170 | } |
| 171 | /* The caller is responsible for not playing with unimplemented bits */ |
| 172 | if (i < 32) { |
| 173 | gpio_lvl &= ~( 1 << i); |
| 174 | gpio_blink &= ~( 1 << i); |
| 175 | gpio_lvl |= ( val << i); |
| 176 | gpio_blink |= (blink << i); |
| 177 | } else { |
| 178 | gpio_lvl2 &= ~( 1 << (i - 32)); |
| 179 | gpio_lvl2 |= (val << (i - 32)); |
| 180 | } |
| 181 | } |
| 182 | outl(gpio_lvl, res->base + 0x0c); |
| 183 | outl(gpio_blink, res->base + 0x18); |
| 184 | outl(gpio_lvl2, res->base + 0x38); |
| 185 | } |
| 186 | |
Stefan Reinauer | 966d0e6 | 2006-04-06 21:37:10 +0000 | [diff] [blame^] | 187 | static void set_i82801er_gpio_inv( |
Yinghai Lu | 13f1c2a | 2005-07-08 02:49:49 +0000 | [diff] [blame] | 188 | device_t dev, struct resource *res, config_t *config) |
| 189 | { |
| 190 | uint32_t gpio_inv; |
| 191 | int i; |
| 192 | |
| 193 | gpio_inv = 0x00000000; |
| 194 | for(i = 0; i < 32; i++) { |
| 195 | int val; |
| 196 | switch(config->gpio[i] & ICH5R_GPIO_INV_MASK) { |
| 197 | case ICH5R_GPIO_INV_OFF: val = 0; break; |
| 198 | case ICH5R_GPIO_INV_ON: val = 1; break; |
| 199 | default: |
| 200 | continue; |
| 201 | } |
| 202 | gpio_inv &= ~( 1 << i); |
| 203 | gpio_inv |= (val << i); |
| 204 | } |
| 205 | outl(gpio_inv, res->base + 0x2c); |
| 206 | } |
| 207 | |
Stefan Reinauer | 966d0e6 | 2006-04-06 21:37:10 +0000 | [diff] [blame^] | 208 | static void i82801er_pirq_init(device_t dev) |
Yinghai Lu | 13f1c2a | 2005-07-08 02:49:49 +0000 | [diff] [blame] | 209 | { |
| 210 | config_t *config; |
| 211 | |
| 212 | /* Get the chip configuration */ |
| 213 | config = dev->chip_info; |
| 214 | |
| 215 | if(config->pirq_a_d) { |
| 216 | pci_write_config32(dev, 0x60, config->pirq_a_d); |
| 217 | } |
| 218 | if(config->pirq_e_h) { |
| 219 | pci_write_config32(dev, 0x68, config->pirq_e_h); |
| 220 | } |
| 221 | } |
| 222 | |
| 223 | |
Stefan Reinauer | 966d0e6 | 2006-04-06 21:37:10 +0000 | [diff] [blame^] | 224 | static void i82801er_gpio_init(device_t dev) |
Yinghai Lu | 13f1c2a | 2005-07-08 02:49:49 +0000 | [diff] [blame] | 225 | { |
| 226 | struct resource *res; |
| 227 | config_t *config; |
| 228 | |
| 229 | /* Skip if I don't have any configuration */ |
| 230 | if (!dev->chip_info) { |
| 231 | return; |
| 232 | } |
| 233 | /* The programmer is responsible for ensuring |
| 234 | * a valid gpio configuration. |
| 235 | */ |
| 236 | |
| 237 | /* Get the chip configuration */ |
| 238 | config = dev->chip_info; |
| 239 | /* Find the GPIO bar */ |
| 240 | res = find_resource(dev, GPIO_BAR); |
| 241 | if (!res) { |
| 242 | return; |
| 243 | } |
| 244 | |
| 245 | /* Set the use selects */ |
Stefan Reinauer | 966d0e6 | 2006-04-06 21:37:10 +0000 | [diff] [blame^] | 246 | set_i82801er_gpio_use_sel(dev, res, config); |
Yinghai Lu | 13f1c2a | 2005-07-08 02:49:49 +0000 | [diff] [blame] | 247 | |
| 248 | /* Set the IO direction */ |
Stefan Reinauer | 966d0e6 | 2006-04-06 21:37:10 +0000 | [diff] [blame^] | 249 | set_i82801er_gpio_direction(dev, res, config); |
Yinghai Lu | 13f1c2a | 2005-07-08 02:49:49 +0000 | [diff] [blame] | 250 | |
| 251 | /* Setup the input inverters */ |
Stefan Reinauer | 966d0e6 | 2006-04-06 21:37:10 +0000 | [diff] [blame^] | 252 | set_i82801er_gpio_inv(dev, res, config); |
Yinghai Lu | 13f1c2a | 2005-07-08 02:49:49 +0000 | [diff] [blame] | 253 | |
| 254 | /* Set the value on the GPIO output pins */ |
Stefan Reinauer | 966d0e6 | 2006-04-06 21:37:10 +0000 | [diff] [blame^] | 255 | set_i82801er_gpio_level(dev, res, config); |
Yinghai Lu | 13f1c2a | 2005-07-08 02:49:49 +0000 | [diff] [blame] | 256 | |
| 257 | } |
| 258 | |
Stefan Reinauer | 966d0e6 | 2006-04-06 21:37:10 +0000 | [diff] [blame^] | 259 | static void enable_hpet(struct device *dev) |
| 260 | { |
| 261 | const unsigned long hpet_address = 0xfed0000; |
| 262 | |
| 263 | uint32_t dword; |
| 264 | uint32_t code = (0 & 0x3); |
| 265 | |
| 266 | dword = pci_read_config32(dev, GEN_CNTL); |
| 267 | dword |= (1 << 17); /* enable hpet */ |
| 268 | |
| 269 | /* Bits [16:15] Memory Address Range |
| 270 | * 00 FED0_0000h - FED0_03FFh |
| 271 | * 01 FED0_1000h - FED0_13FFh |
| 272 | * 10 FED0_2000h - FED0_23FFh |
| 273 | * 11 FED0_3000h - FED0_33FFh |
| 274 | */ |
| 275 | |
| 276 | dword &= ~(3 << 15); /* clear it */ |
| 277 | dword |= (code<<15); |
| 278 | |
| 279 | printk_debug("enabling HPET @0x%x\n", hpet_address | (code <<12) ); |
| 280 | } |
Yinghai Lu | 13f1c2a | 2005-07-08 02:49:49 +0000 | [diff] [blame] | 281 | |
| 282 | static void lpc_init(struct device *dev) |
| 283 | { |
| 284 | uint8_t byte; |
| 285 | uint32_t value; |
| 286 | int pwr_on=MAINBOARD_POWER_ON_AFTER_POWER_FAIL; |
| 287 | |
| 288 | /* IO APIC initialization */ |
| 289 | value = pci_read_config32(dev, 0xd0); |
| 290 | value |= (1 << 8)|(1<<7)|(1<<1); |
| 291 | pci_write_config32(dev, 0xd0, value); |
| 292 | value = pci_read_config32(dev, 0xd4); |
| 293 | value |= (1<<1); |
| 294 | pci_write_config32(dev, 0xd4, value); |
| 295 | setup_ioapic(); |
| 296 | |
Stefan Reinauer | 966d0e6 | 2006-04-06 21:37:10 +0000 | [diff] [blame^] | 297 | i82801er_enable_serial_irqs(dev); |
Yinghai Lu | 13f1c2a | 2005-07-08 02:49:49 +0000 | [diff] [blame] | 298 | |
Stefan Reinauer | 966d0e6 | 2006-04-06 21:37:10 +0000 | [diff] [blame^] | 299 | i82801er_pci_dma_cfg(dev); |
Yinghai Lu | 13f1c2a | 2005-07-08 02:49:49 +0000 | [diff] [blame] | 300 | |
Stefan Reinauer | 966d0e6 | 2006-04-06 21:37:10 +0000 | [diff] [blame^] | 301 | i82801er_enable_lpc(dev); |
Yinghai Lu | 13f1c2a | 2005-07-08 02:49:49 +0000 | [diff] [blame] | 302 | |
| 303 | /* Clear SATA to non raid */ |
| 304 | pci_write_config8(dev, 0xae, 0x00); |
| 305 | |
| 306 | get_option(&pwr_on, "power_on_after_fail"); |
| 307 | byte = pci_read_config8(dev, 0xa4); |
| 308 | byte &= 0xfe; |
| 309 | if (!pwr_on) { |
| 310 | byte |= 1; |
| 311 | } |
| 312 | pci_write_config8(dev, 0xa4, byte); |
| 313 | printk_info("set power %s after power fail\n", pwr_on?"on":"off"); |
| 314 | |
| 315 | /* Set up the PIRQ */ |
Stefan Reinauer | 966d0e6 | 2006-04-06 21:37:10 +0000 | [diff] [blame^] | 316 | i82801er_pirq_init(dev); |
Yinghai Lu | 13f1c2a | 2005-07-08 02:49:49 +0000 | [diff] [blame] | 317 | |
| 318 | /* Set the state of the gpio lines */ |
Stefan Reinauer | 966d0e6 | 2006-04-06 21:37:10 +0000 | [diff] [blame^] | 319 | i82801er_gpio_init(dev); |
Yinghai Lu | 13f1c2a | 2005-07-08 02:49:49 +0000 | [diff] [blame] | 320 | |
| 321 | /* Initialize the real time clock */ |
| 322 | rtc_init(0); |
| 323 | |
| 324 | /* Initialize isa dma */ |
| 325 | isa_dma_init(); |
| 326 | |
| 327 | /* Disable IDE (needed when sata is enabled) */ |
| 328 | pci_write_config8(dev, 0xf2, 0x60); |
| 329 | |
Stefan Reinauer | 966d0e6 | 2006-04-06 21:37:10 +0000 | [diff] [blame^] | 330 | enable_hpet(dev); |
Yinghai Lu | 13f1c2a | 2005-07-08 02:49:49 +0000 | [diff] [blame] | 331 | } |
| 332 | |
Stefan Reinauer | 966d0e6 | 2006-04-06 21:37:10 +0000 | [diff] [blame^] | 333 | static void i82801er_lpc_read_resources(device_t dev) |
Yinghai Lu | 13f1c2a | 2005-07-08 02:49:49 +0000 | [diff] [blame] | 334 | { |
| 335 | struct resource *res; |
| 336 | |
| 337 | /* Get the normal pci resources of this device */ |
| 338 | pci_dev_read_resources(dev); |
| 339 | |
| 340 | /* Add the ACPI BAR */ |
| 341 | res = pci_get_resource(dev, ACPI_BAR); |
| 342 | |
| 343 | /* Add the GPIO BAR */ |
| 344 | res = pci_get_resource(dev, GPIO_BAR); |
| 345 | |
| 346 | /* Add an extra subtractive resource for both memory and I/O */ |
| 347 | res = new_resource(dev, IOINDEX_SUBTRACTIVE(0, 0)); |
| 348 | res->flags = IORESOURCE_IO | IORESOURCE_SUBTRACTIVE | IORESOURCE_ASSIGNED; |
| 349 | |
| 350 | res = new_resource(dev, IOINDEX_SUBTRACTIVE(1, 0)); |
| 351 | res->flags = IORESOURCE_MEM | IORESOURCE_SUBTRACTIVE | IORESOURCE_ASSIGNED; |
| 352 | } |
| 353 | |
Stefan Reinauer | 966d0e6 | 2006-04-06 21:37:10 +0000 | [diff] [blame^] | 354 | static void i82801er_lpc_enable_resources(device_t dev) |
Yinghai Lu | 13f1c2a | 2005-07-08 02:49:49 +0000 | [diff] [blame] | 355 | { |
| 356 | uint8_t acpi_cntl, gpio_cntl; |
| 357 | |
| 358 | /* Enable the normal pci resources */ |
| 359 | pci_dev_enable_resources(dev); |
| 360 | |
| 361 | /* Enable the ACPI bar */ |
| 362 | acpi_cntl = pci_read_config8(dev, 0x44); |
| 363 | acpi_cntl |= (1 << 4); |
| 364 | pci_write_config8(dev, 0x44, acpi_cntl); |
| 365 | |
| 366 | /* Enable the GPIO bar */ |
| 367 | gpio_cntl = pci_read_config8(dev, 0x5c); |
| 368 | gpio_cntl |= (1 << 4); |
| 369 | pci_write_config8(dev, 0x5c, gpio_cntl); |
| 370 | |
| 371 | enable_childrens_resources(dev); |
| 372 | } |
| 373 | |
| 374 | static struct pci_operations lops_pci = { |
| 375 | .set_subsystem = 0, |
| 376 | }; |
| 377 | |
| 378 | static struct device_operations lpc_ops = { |
Stefan Reinauer | 966d0e6 | 2006-04-06 21:37:10 +0000 | [diff] [blame^] | 379 | .read_resources = i82801er_lpc_read_resources, |
Yinghai Lu | 13f1c2a | 2005-07-08 02:49:49 +0000 | [diff] [blame] | 380 | .set_resources = pci_dev_set_resources, |
Stefan Reinauer | 966d0e6 | 2006-04-06 21:37:10 +0000 | [diff] [blame^] | 381 | .enable_resources = i82801er_lpc_enable_resources, |
Yinghai Lu | 13f1c2a | 2005-07-08 02:49:49 +0000 | [diff] [blame] | 382 | .init = lpc_init, |
| 383 | .scan_bus = scan_static_bus, |
Stefan Reinauer | 966d0e6 | 2006-04-06 21:37:10 +0000 | [diff] [blame^] | 384 | .enable = i82801er_enable, |
Yinghai Lu | 13f1c2a | 2005-07-08 02:49:49 +0000 | [diff] [blame] | 385 | .ops_pci = &lops_pci, |
| 386 | }; |
| 387 | |
| 388 | static struct pci_driver lpc_driver __pci_driver = { |
| 389 | .ops = &lpc_ops, |
| 390 | .vendor = PCI_VENDOR_ID_INTEL, |
| 391 | .device = PCI_DEVICE_ID_INTEL_82801ER_ISA, |
| 392 | }; |