2 * (C) Copyright 2003-2004
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
6 * Mark Jonas, Freescale Semiconductor, mark.jonas@motorola.com.
8 * (C) Copyright 2004-2005
9 * Martin Krause, TQ-Systems GmbH, martin.krause@tqs.de
11 * See file CREDITS for list of people who contributed to this
14 * This program is free software; you can redistribute it and/or
15 * modify it under the terms of the GNU General Public License as
16 * published by the Free Software Foundation; either version 2 of
17 * the License, or (at your option) any later version.
19 * This program is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
24 * You should have received a copy of the GNU General Public License
25 * along with this program; if not, write to the Free Software
26 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
34 #ifdef CONFIG_VIDEO_SM501
38 #if defined(CONFIG_MPC5200_DDR)
39 #include "mt46v16m16-75.h"
41 #include "mt48lc16m16a2-75.h"
45 void ps2mult_early_init(void);
49 static void sdram_start (int hi_addr)
51 long hi_addr_bit = hi_addr ? 0x01000000 : 0;
53 /* unlock mode register */
54 *(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000000 |
56 __asm__ volatile ("sync");
58 /* precharge all banks */
59 *(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000002 |
61 __asm__ volatile ("sync");
64 /* set mode register: extended mode */
65 *(vu_long *)MPC5XXX_SDRAM_MODE = SDRAM_EMODE;
66 __asm__ volatile ("sync");
68 /* set mode register: reset DLL */
69 *(vu_long *)MPC5XXX_SDRAM_MODE = SDRAM_MODE | 0x04000000;
70 __asm__ volatile ("sync");
73 /* precharge all banks */
74 *(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000002 |
76 __asm__ volatile ("sync");
79 *(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000004 |
81 __asm__ volatile ("sync");
83 /* set mode register */
84 *(vu_long *)MPC5XXX_SDRAM_MODE = SDRAM_MODE;
85 __asm__ volatile ("sync");
87 /* normal operation */
88 *(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | hi_addr_bit;
89 __asm__ volatile ("sync");
94 * ATTENTION: Although partially referenced initdram does NOT make real use
95 * use of CFG_SDRAM_BASE. The code does not work if CFG_SDRAM_BASE
96 * is something else than 0x00000000.
99 #if defined(CONFIG_MPC5200)
100 long int initdram (int board_type)
107 /* setup SDRAM chip selects */
108 *(vu_long *)MPC5XXX_SDRAM_CS0CFG = 0x0000001c; /* 512MB at 0x0 */
109 *(vu_long *)MPC5XXX_SDRAM_CS1CFG = 0x40000000; /* disabled */
110 __asm__ volatile ("sync");
112 /* setup config registers */
113 *(vu_long *)MPC5XXX_SDRAM_CONFIG1 = SDRAM_CONFIG1;
114 *(vu_long *)MPC5XXX_SDRAM_CONFIG2 = SDRAM_CONFIG2;
115 __asm__ volatile ("sync");
119 *(vu_long *)MPC5XXX_CDM_PORCFG = SDRAM_TAPDELAY;
120 __asm__ volatile ("sync");
123 /* find RAM size using SDRAM CS0 only */
125 test1 = get_ram_size((ulong *)CFG_SDRAM_BASE, 0x20000000);
127 test2 = get_ram_size((ulong *)CFG_SDRAM_BASE, 0x20000000);
135 /* memory smaller than 1MB is impossible */
136 if (dramsize < (1 << 20)) {
140 /* set SDRAM CS0 size according to the amount of RAM found */
142 *(vu_long *)MPC5XXX_SDRAM_CS0CFG = 0x13 +
143 __builtin_ffs(dramsize >> 20) - 1;
145 *(vu_long *)MPC5XXX_SDRAM_CS0CFG = 0; /* disabled */
148 /* let SDRAM CS1 start right after CS0 */
149 *(vu_long *)MPC5XXX_SDRAM_CS1CFG = dramsize + 0x0000001c; /* 512MB */
151 /* find RAM size using SDRAM CS1 only */
153 test1 = get_ram_size((ulong *)(CFG_SDRAM_BASE + dramsize), 0x20000000);
155 test2 = get_ram_size((ulong *)(CFG_SDRAM_BASE + dramsize), 0x20000000);
163 /* memory smaller than 1MB is impossible */
164 if (dramsize2 < (1 << 20)) {
168 /* set SDRAM CS1 size according to the amount of RAM found */
170 *(vu_long *)MPC5XXX_SDRAM_CS1CFG = dramsize
171 | (0x13 + __builtin_ffs(dramsize2 >> 20) - 1);
173 *(vu_long *)MPC5XXX_SDRAM_CS1CFG = dramsize; /* disabled */
176 #else /* CFG_RAMBOOT */
178 /* retrieve size of memory connected to SDRAM CS0 */
179 dramsize = *(vu_long *)MPC5XXX_SDRAM_CS0CFG & 0xFF;
180 if (dramsize >= 0x13) {
181 dramsize = (1 << (dramsize - 0x13)) << 20;
186 /* retrieve size of memory connected to SDRAM CS1 */
187 dramsize2 = *(vu_long *)MPC5XXX_SDRAM_CS1CFG & 0xFF;
188 if (dramsize2 >= 0x13) {
189 dramsize2 = (1 << (dramsize2 - 0x13)) << 20;
194 #endif /* CFG_RAMBOOT */
196 /* return dramsize + dramsize2; */
200 #elif defined(CONFIG_MGT5100)
202 long int initdram (int board_type)
208 /* setup and enable SDRAM chip selects */
209 *(vu_long *)MPC5XXX_SDRAM_START = 0x00000000;
210 *(vu_long *)MPC5XXX_SDRAM_STOP = 0x0000ffff;/* 2G */
211 *(vu_long *)MPC5XXX_ADDECR |= (1 << 22); /* Enable SDRAM */
212 __asm__ volatile ("sync");
214 /* setup config registers */
215 *(vu_long *)MPC5XXX_SDRAM_CONFIG1 = SDRAM_CONFIG1;
216 *(vu_long *)MPC5XXX_SDRAM_CONFIG2 = SDRAM_CONFIG2;
218 /* address select register */
219 *(vu_long *)MPC5XXX_SDRAM_XLBSEL = SDRAM_ADDRSEL;
220 __asm__ volatile ("sync");
224 test1 = get_ram_size((ulong *)CFG_SDRAM_BASE, 0x80000000);
226 test2 = get_ram_size((ulong *)CFG_SDRAM_BASE, 0x80000000);
234 /* set SDRAM end address according to size */
235 *(vu_long *)MPC5XXX_SDRAM_STOP = ((dramsize - 1) >> 15);
237 #else /* CFG_RAMBOOT */
239 /* Retrieve amount of SDRAM available */
240 dramsize = ((*(vu_long *)MPC5XXX_SDRAM_STOP + 1) << 15);
242 #endif /* CFG_RAMBOOT */
248 #error Neither CONFIG_MPC5200 or CONFIG_MGT5100 defined
251 int checkboard (void)
253 #if defined (CONFIG_TQM5200_AA)
254 puts ("Board: TQM5200-AA (TQ-Components GmbH)\n");
255 #elif defined (CONFIG_TQM5200_AB)
256 puts ("Board: TQM5200-AB (TQ-Components GmbH)\n");
257 #elif defined (CONFIG_TQM5200_AC)
258 puts ("Board: TQM5200-AC (TQ-Components GmbH)\n");
259 #elif defined (CONFIG_TQM5200)
260 puts ("Board: TQM5200 (TQ-Components GmbH)\n");
262 #if defined (CONFIG_STK52XX)
263 puts (" on a STK52XX baseboard\n");
269 void flash_preinit(void)
272 * Now, when we are in RAM, enable flash write
273 * access for detection process.
274 * Note that CS_BOOT cannot be cleared when
275 * executing in flash.
277 #if defined(CONFIG_MGT5100)
278 *(vu_long *)MPC5XXX_ADDECR &= ~(1 << 25); /* disable CS_BOOT */
279 *(vu_long *)MPC5XXX_ADDECR |= (1 << 16); /* enable CS0 */
281 *(vu_long *)MPC5XXX_BOOTCS_CFG &= ~0x1; /* clear RO */
286 static struct pci_controller hose;
288 extern void pci_mpc5xxx_init(struct pci_controller *);
290 void pci_init_board(void)
292 pci_mpc5xxx_init(&hose);
296 #if defined (CFG_CMD_IDE) && defined (CONFIG_IDE_RESET)
298 #if defined (CONFIG_MINIFAP)
299 #define SM501_POWER_MODE0_GATE 0x00000040UL
300 #define SM501_POWER_MODE1_GATE 0x00000048UL
301 #define POWER_MODE_GATE_GPIO_PWM_I2C 0x00000040UL
302 #define SM501_GPIO_DATA_DIR_HIGH 0x0001000CUL
303 #define SM501_GPIO_DATA_HIGH 0x00010004UL
304 #define SM501_GPIO_51 0x00080000UL
306 #define GPIO_PSC1_4 0x01000000UL
309 void init_ide_reset (void)
311 debug ("init_ide_reset\n");
313 #if defined (CONFIG_MINIFAP)
314 /* Configure GPIO_51 of the SM501 grafic controller as ATA reset */
316 /* enable GPIO control (in both power modes) */
317 *(vu_long *) (SM501_MMIO_BASE+SM501_POWER_MODE0_GATE) |=
318 POWER_MODE_GATE_GPIO_PWM_I2C;
319 *(vu_long *) (SM501_MMIO_BASE+SM501_POWER_MODE1_GATE) |=
320 POWER_MODE_GATE_GPIO_PWM_I2C;
321 /* configure GPIO51 as output */
322 *(vu_long *) (SM501_MMIO_BASE+SM501_GPIO_DATA_DIR_HIGH) |=
325 /* Configure PSC1_4 as GPIO output for ATA reset */
326 *(vu_long *) MPC5XXX_WU_GPIO_ENABLE |= GPIO_PSC1_4;
327 *(vu_long *) MPC5XXX_WU_GPIO_DIR |= GPIO_PSC1_4;
331 void ide_set_reset (int idereset)
333 debug ("ide_reset(%d)\n", idereset);
335 #if defined (CONFIG_MINIFAP)
337 *(vu_long *) (SM501_MMIO_BASE+SM501_GPIO_DATA_HIGH) &=
340 *(vu_long *) (SM501_MMIO_BASE+SM501_GPIO_DATA_HIGH) |=
345 *(vu_long *) MPC5XXX_WU_GPIO_DATA &= ~GPIO_PSC1_4;
347 *(vu_long *) MPC5XXX_WU_GPIO_DATA |= GPIO_PSC1_4;
351 #endif /* defined (CFG_CMD_IDE) && defined (CONFIG_IDE_RESET) */
355 * Reads GPIO pin PSC6_3. A keypress is reported, if PSC6_3 is low. If PSC6_3
356 * is left open, no keypress is detected.
358 int post_hotkeys_pressed(void)
360 struct mpc5xxx_gpio *gpio;
362 gpio = (struct mpc5xxx_gpio*) MPC5XXX_GPIO;
365 * Configure PSC6_1 and PSC6_3 as GPIO. PSC6 then couldn't be used in
366 * CODEC or UART mode. Consumer IrDA should still be possible.
368 gpio->port_config &= ~(0x07000000);
369 gpio->port_config |= 0x03000000;
371 /* Enable GPIO for GPIO_IRDA_1 (IR_USB_CLK pin) = PSC6_3 */
372 gpio->simple_gpioe |= 0x20000000;
374 /* Configure GPIO_IRDA_1 as input */
375 gpio->simple_ddr &= ~(0x20000000);
377 return ((gpio->simple_ival & 0x20000000) ? 0 : 1);
381 #if defined(CONFIG_POST) || defined(CONFIG_LOGBUFFER)
383 void post_word_store (ulong a)
385 volatile ulong *save_addr =
386 (volatile ulong *)(MPC5XXX_SRAM + MPC5XXX_SRAM_POST_SIZE);
391 ulong post_word_load (void)
393 volatile ulong *save_addr =
394 (volatile ulong *)(MPC5XXX_SRAM + MPC5XXX_SRAM_POST_SIZE);
398 #endif /* CONFIG_POST || CONFIG_LOGBUFFER*/
400 #ifdef CONFIG_PS2MULT
401 #ifdef CONFIG_BOARD_EARLY_INIT_R
402 int board_early_init_r (void)
404 ps2mult_early_init();
408 #endif /* CONFIG_PS2MULT */
410 #if defined(CONFIG_CS_AUTOCONF)
411 int last_stage_init (void)
414 * auto scan for really existing devices and re-set chip select
421 * Check for SRAM and SRAM size
424 /* save origianl SRAM content */
425 save = *(volatile u16 *)CFG_CS2_START;
428 /* write test pattern to SRAM */
429 *(volatile u16 *)CFG_CS2_START = 0xA5A5;
430 __asm__ volatile ("sync");
432 * Put a different pattern on the data lines: otherwise they may float
433 * long enough to read back what we wrote.
435 tmp = *(volatile u16 *)CFG_FLASH_BASE;
437 puts ("!! possible error in SRAM detection\n");
439 if (*(volatile u16 *)CFG_CS2_START != 0xA5A5) {
440 /* no SRAM at all, disable cs */
441 *(vu_long *)MPC5XXX_ADDECR &= ~(1 << 18);
442 *(vu_long *)MPC5XXX_CS2_START = 0x0000FFFF;
443 *(vu_long *)MPC5XXX_CS2_STOP = 0x0000FFFF;
445 __asm__ volatile ("sync");
447 else if (*(volatile u16 *)(CFG_CS2_START + (1<<19)) == 0xA5A5) {
448 /* make sure that we access a mirrored address */
449 *(volatile u16 *)CFG_CS2_START = 0x1111;
450 __asm__ volatile ("sync");
451 if (*(volatile u16 *)(CFG_CS2_START + (1<<19)) == 0x1111) {
452 /* SRAM size = 512 kByte */
453 *(vu_long *)MPC5XXX_CS2_STOP = STOP_REG(CFG_CS2_START,
455 __asm__ volatile ("sync");
456 puts ("SRAM: 512 kB\n");
459 puts ("!! possible error in SRAM detection\n");
462 puts ("SRAM: 1 MB\n");
464 /* restore origianl SRAM content */
466 *(volatile u16 *)CFG_CS2_START = save;
467 __asm__ volatile ("sync");
471 * Check for Grafic Controller
474 /* save origianl FB content */
475 save = *(volatile u16 *)CFG_CS1_START;
478 /* write test pattern to FB memory */
479 *(volatile u16 *)CFG_CS1_START = 0xA5A5;
480 __asm__ volatile ("sync");
482 * Put a different pattern on the data lines: otherwise they may float
483 * long enough to read back what we wrote.
485 tmp = *(volatile u16 *)CFG_FLASH_BASE;
487 puts ("!! possible error in grafic controller detection\n");
489 if (*(volatile u16 *)CFG_CS1_START != 0xA5A5) {
490 /* no grafic controller at all, disable cs */
491 *(vu_long *)MPC5XXX_ADDECR &= ~(1 << 17);
492 *(vu_long *)MPC5XXX_CS1_START = 0x0000FFFF;
493 *(vu_long *)MPC5XXX_CS1_STOP = 0x0000FFFF;
495 __asm__ volatile ("sync");
498 puts ("VGA: SMI501 (Voyager) with 8 MB\n");
500 /* restore origianl FB content */
502 *(volatile u16 *)CFG_CS1_START = save;
503 __asm__ volatile ("sync");
508 #endif /* CONFIG_CS_AUTOCONF */
510 #ifdef CONFIG_VIDEO_SM501
512 #define DISPLAY_WIDTH 640
513 #define DISPLAY_HEIGHT 480
515 #ifdef CONFIG_VIDEO_SM501_8BPP
516 #error CONFIG_VIDEO_SM501_8BPP not supported.
517 #endif /* CONFIG_VIDEO_SM501_8BPP */
519 #ifdef CONFIG_VIDEO_SM501_16BPP
520 #error CONFIG_VIDEO_SM501_16BPP not supported.
521 #endif /* CONFIG_VIDEO_SM501_16BPP */
522 #ifdef CONFIG_VIDEO_SM501_32BPP
523 static const SMI_REGS init_regs [] =
527 {0x00048, 0x00021807},
528 {0x0004C, 0x10090a01},
530 {0x00040, 0x00021807},
531 {0x00044, 0x10090a01},
533 {0x80200, 0x00010000},
535 {0x80208, 0x0A000A00},
536 {0x8020C, 0x02fa027f},
537 {0x80210, 0x004a028b},
538 {0x80214, 0x020c01df},
539 {0x80218, 0x000201e9},
540 {0x80200, 0x00013306},
541 #else /* panel + CRT */
543 {0x00048, 0x00021807},
544 {0x0004C, 0x091a0a01},
546 {0x00040, 0x00021807},
547 {0x00044, 0x091a0a01},
549 {0x80000, 0x0f013106},
550 {0x80004, 0xc428bb17},
551 {0x8000C, 0x00000000},
552 {0x80010, 0x0a000a00},
553 {0x80014, 0x02800000},
554 {0x80018, 0x01e00000},
555 {0x8001C, 0x00000000},
556 {0x80020, 0x01e00280},
557 {0x80024, 0x02fa027f},
558 {0x80028, 0x004a028b},
559 {0x8002C, 0x020c01df},
560 {0x80030, 0x000201e9},
561 {0x80200, 0x00010000},
565 #endif /* CONFIG_VIDEO_SM501_32BPP */
567 #ifdef CONFIG_CONSOLE_EXTRA_INFO
569 * Return text to be printed besides the logo.
571 void video_get_info_str (int line_number, char *info)
573 if (line_number == 1) {
574 #if defined (CONFIG_TQM5200_AA)
575 strcpy (info, " Board: TQM5200-AA (TQ-Components GmbH)");
576 #elif defined (CONFIG_TQM5200_AB)
577 strcpy (info, " Board: TQM5200-AB (TQ-Components GmbH)");
578 #elif defined (CONFIG_TQM5200_AC)
579 strcpy (info, " Board: TQM5200-AC (TQ-Components GmbH)");
580 #elif defined (CONFIG_TQM5200)
581 strcpy (info, " Board: TQM5200 (TQ-Components GmbH)");
583 #error No supported board selected
585 #if defined (CONFIG_STK52XX)
586 } else if (line_number == 2) {
587 strcpy (info, " on a STK52XX baseboard");
597 * Returns SM501 register base address. First thing called in the driver.
599 unsigned int board_video_init (void)
601 return SM501_MMIO_BASE;
605 * Returns SM501 framebuffer address
607 unsigned int board_video_get_fb (void)
609 return SM501_FB_BASE;
613 * Called after initializing the SM501 and before clearing the screen.
615 void board_validate_screen (unsigned int base)
620 * Return a pointer to the initialization sequence.
622 const SMI_REGS *board_get_regs (void)
627 int board_get_width (void)
629 return DISPLAY_WIDTH;
632 int board_get_height (void)
634 return DISPLAY_HEIGHT;
637 #endif /* CONFIG_VIDEO_SM501 */