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Side by Side Diff: it85spi.c

Issue 6897014: Do not call EC programmer shutdown functions explicitly. (Closed) Base URL: svn://coreboot.org/flashrom/trunk
Patch Set: call shutdown function for internal programmer explicitly Created 9 years, 8 months ago
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1 /* 1 /*
2 * This file is part of the flashrom project. 2 * This file is part of the flashrom project.
3 * 3 *
4 * Copyright (C) 2007, 2008, 2009 Carl-Daniel Hailfinger 4 * Copyright (C) 2007, 2008, 2009 Carl-Daniel Hailfinger
5 * Copyright (C) 2008 Ronald Hoogenboom <ronald@zonnet.nl> 5 * Copyright (C) 2008 Ronald Hoogenboom <ronald@zonnet.nl>
6 * Copyright (C) 2008 coresystems GmbH 6 * Copyright (C) 2008 coresystems GmbH
7 * Copyright (C) 2010 Google Inc. 7 * Copyright (C) 2010 Google Inc.
8 * 8 *
9 * This program is free software; you can redistribute it and/or modify 9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by 10 * it under the terms of the GNU General Public License as published by
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72 #ifdef LPC_IO 72 #ifdef LPC_IO
73 /* macro to fill in indirect-access registers. */ 73 /* macro to fill in indirect-access registers. */
74 #define INDIRECT_A0(base, value) OUTB(value, (base) + 0) /* little-endian */ 74 #define INDIRECT_A0(base, value) OUTB(value, (base) + 0) /* little-endian */
75 #define INDIRECT_A1(base, value) OUTB(value, (base) + 1) 75 #define INDIRECT_A1(base, value) OUTB(value, (base) + 1)
76 #define INDIRECT_A2(base, value) OUTB(value, (base) + 2) 76 #define INDIRECT_A2(base, value) OUTB(value, (base) + 2)
77 #define INDIRECT_A3(base, value) OUTB(value, (base) + 3) 77 #define INDIRECT_A3(base, value) OUTB(value, (base) + 3)
78 #define INDIRECT_READ(base) INB((base) + 4) 78 #define INDIRECT_READ(base) INB((base) + 4)
79 #define INDIRECT_WRITE(base, value) OUTB(value, (base) + 4) 79 #define INDIRECT_WRITE(base, value) OUTB(value, (base) + 4)
80 #endif /* LPC_IO */ 80 #endif /* LPC_IO */
81 81
82 void it85xx_shutdown(void *);
83
82 #ifdef LPC_IO 84 #ifdef LPC_IO
83 unsigned int shm_io_base; 85 unsigned int shm_io_base;
84 #endif 86 #endif
85 unsigned char *ce_high, *ce_low; 87 unsigned char *ce_high, *ce_low;
86 static int it85xx_scratch_rom_reenter = 0; 88 static int it85xx_scratch_rom_reenter = 0;
87 89
88 uint16_t probe_id_ite85(uint16_t port) 90 uint16_t probe_id_ite85(uint16_t port)
89 { 91 {
90 uint16_t id; 92 uint16_t id;
91 93
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262 264
263 int it85xx_spi_common_init(void) 265 int it85xx_spi_common_init(void)
264 { 266 {
265 chipaddr base; 267 chipaddr base;
266 268
267 msg_pdbg("%s():%d superio.vendor=0x%02x\n", __func__, __LINE__, 269 msg_pdbg("%s():%d superio.vendor=0x%02x\n", __func__, __LINE__,
268 superio.vendor); 270 superio.vendor);
269 if (superio.vendor != SUPERIO_VENDOR_ITE) 271 if (superio.vendor != SUPERIO_VENDOR_ITE)
270 return 1; 272 return 1;
271 273
274 if (register_shutdown(it85xx_shutdown, NULL))
275 return 1;
276
272 #ifdef LPC_IO 277 #ifdef LPC_IO
273 /* Get LPCPNP of SHM. That's big-endian */ 278 /* Get LPCPNP of SHM. That's big-endian */
274 sio_write(superio.port, LDNSEL, 0x0F); /* Set LDN to SHM (0x0F) */ 279 sio_write(superio.port, LDNSEL, 0x0F); /* Set LDN to SHM (0x0F) */
275 shm_io_base = (sio_read(superio.port, SHM_IO_BAD0) << 8) + 280 shm_io_base = (sio_read(superio.port, SHM_IO_BAD0) << 8) +
276 sio_read(superio.port, SHM_IO_BAD1); 281 sio_read(superio.port, SHM_IO_BAD1);
277 msg_pdbg("%s():%d shm_io_base=0x%04x\n", __func__, __LINE__, 282 msg_pdbg("%s():%d shm_io_base=0x%04x\n", __func__, __LINE__,
278 shm_io_base); 283 shm_io_base);
279 284
280 /* These pointers are not used directly. They will be send to EC's 285 /* These pointers are not used directly. They will be send to EC's
281 * register for indirect access. */ 286 * register for indirect access. */
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293 base = (chipaddr)programmer_map_flash_region("flash base", 0xFFFFF000, 298 base = (chipaddr)programmer_map_flash_region("flash base", 0xFFFFF000,
294 0x1000); 299 0x1000);
295 msg_pdbg("%s():%d base=0x%08x\n", __func__, __LINE__, 300 msg_pdbg("%s():%d base=0x%08x\n", __func__, __LINE__,
296 (unsigned int)base); 301 (unsigned int)base);
297 ce_high = (unsigned char*)(base + 0xE00); /* 0xFFFFFE00 */ 302 ce_high = (unsigned char*)(base + 0xE00); /* 0xFFFFFE00 */
298 ce_low = (unsigned char*)(base + 0xD00); /* 0xFFFFFD00 */ 303 ce_low = (unsigned char*)(base + 0xD00); /* 0xFFFFFD00 */
299 #endif 304 #endif
300 305
301 /* Set this as spi controller. */ 306 /* Set this as spi controller. */
302 spi_controller = SPI_CONTROLLER_IT85XX; 307 spi_controller = SPI_CONTROLLER_IT85XX;
303
304 return 0; 308 return 0;
305 } 309 }
306 310
307 /* Called by programmer_entry .init */ 311 /* Called by programmer_entry .init */
308 int it85xx_spi_init(void) 312 int it85xx_spi_init(void)
309 { 313 {
310 int ret; 314 int ret;
311 315
312 get_io_perms(); 316 get_io_perms();
313 /* Probe for the Super I/O chip and fill global struct superio. */ 317 /* Probe for the Super I/O chip and fill global struct superio. */
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335 if (!ret) { 339 if (!ret) {
336 msg_pdbg("%s():%d buses_supported=0x%x\n", __func__, __LINE__, 340 msg_pdbg("%s():%d buses_supported=0x%x\n", __func__, __LINE__,
337 buses_supported); 341 buses_supported);
338 if (buses_supported & CHIP_BUSTYPE_FWH) 342 if (buses_supported & CHIP_BUSTYPE_FWH)
339 msg_pdbg("Overriding chipset SPI with IT85 FWH|SPI.\n"); 343 msg_pdbg("Overriding chipset SPI with IT85 FWH|SPI.\n");
340 buses_supported |= CHIP_BUSTYPE_FWH | CHIP_BUSTYPE_SPI; 344 buses_supported |= CHIP_BUSTYPE_FWH | CHIP_BUSTYPE_SPI;
341 } 345 }
342 return ret; 346 return ret;
343 } 347 }
344 348
345 int it85xx_shutdown(void) 349 void it85xx_shutdown(void *data)
346 { 350 {
347 msg_pdbg("%s():%d\n", __func__, __LINE__); 351 msg_pdbg("%s():%d\n", __func__, __LINE__);
348 it85xx_exit_scratch_rom(); 352 it85xx_exit_scratch_rom();
349 return 0;
350 } 353 }
351 354
352 /* According to ITE 8502 document, the procedure to follow mode is following: 355 /* According to ITE 8502 document, the procedure to follow mode is following:
353 * 1. write 0x00 to LPC/FWH address 0xffff_fexxh (drive CE# high) 356 * 1. write 0x00 to LPC/FWH address 0xffff_fexxh (drive CE# high)
354 * 2. write data to LPC/FWH address 0xffff_fdxxh (drive CE# low and MOSI 357 * 2. write data to LPC/FWH address 0xffff_fdxxh (drive CE# low and MOSI
355 * with data) 358 * with data)
356 * 3. read date from LPC/FWH address 0xffff_fdxxh (drive CE# low and get 359 * 3. read date from LPC/FWH address 0xffff_fdxxh (drive CE# low and get
357 * data from MISO) 360 * data from MISO)
358 */ 361 */
359 int it85xx_spi_send_command(unsigned int writecnt, unsigned int readcnt, 362 int it85xx_spi_send_command(unsigned int writecnt, unsigned int readcnt,
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394 INDIRECT_WRITE(shm_io_base, 0xFF); /* Write anything to this address.*/ 397 INDIRECT_WRITE(shm_io_base, 0xFF); /* Write anything to this address.*/
395 #endif 398 #endif
396 #ifdef LPC_MEMORY 399 #ifdef LPC_MEMORY
397 *ce_high = 0; 400 *ce_high = 0;
398 #endif 401 #endif
399 402
400 return 0; 403 return 0;
401 } 404 }
402 405
403 #endif 406 #endif
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