3 * Stefan Roese, DENX Software Engineering, sr@denx.de.
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License as
7 * published by the Free Software Foundation; either version 2 of
8 * the License, or (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
24 #include <asm/processor.h>
28 DECLARE_GLOBAL_DATA_PTR;
30 extern flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */
32 ulong flash_get_size(ulong base, int banknum);
33 int misc_init_r_kbd(void);
35 int board_early_init_f(void)
37 u32 sdr0_pfc1, sdr0_pfc2;
40 /* PLB Write pipelining disabled. Denali Core workaround */
41 mtdcr(plb0_acr, 0xDE000000);
42 mtdcr(plb1_acr, 0xDE000000);
44 /*--------------------------------------------------------------------
45 * Setup the interrupt controller polarities, triggers, etc.
46 *-------------------------------------------------------------------*/
47 mtdcr(uic0sr, 0xffffffff); /* clear all. if write with 1 then the status is cleared */
48 mtdcr(uic0er, 0x00000000); /* disable all */
49 mtdcr(uic0cr, 0x00000000); /* we have not critical interrupts at the moment */
50 mtdcr(uic0pr, 0xFFBFF1EF); /* Adjustment of the polarity */
51 mtdcr(uic0tr, 0x00000900); /* per ref-board manual */
52 mtdcr(uic0vr, 0x00000000); /* int31 highest, base=0x000 is within DDRAM */
53 mtdcr(uic0sr, 0xffffffff); /* clear all */
55 mtdcr(uic1sr, 0xffffffff); /* clear all */
56 mtdcr(uic1er, 0x00000000); /* disable all */
57 mtdcr(uic1cr, 0x00000000); /* all non-critical */
58 mtdcr(uic1pr, 0xFFFFC6A5); /* Adjustment of the polarity */
59 mtdcr(uic1tr, 0x60000040); /* per ref-board manual */
60 mtdcr(uic1vr, 0x00000000); /* int31 highest, base=0x000 is within DDRAM */
61 mtdcr(uic1sr, 0xffffffff); /* clear all */
63 mtdcr(uic2sr, 0xffffffff); /* clear all */
64 mtdcr(uic2er, 0x00000000); /* disable all */
65 mtdcr(uic2cr, 0x00000000); /* all non-critical */
66 mtdcr(uic2pr, 0x27C00000); /* Adjustment of the polarity */
67 mtdcr(uic2tr, 0x3C000000); /* per ref-board manual */
68 mtdcr(uic2vr, 0x00000000); /* int31 highest, base=0x000 is within DDRAM */
69 mtdcr(uic2sr, 0xffffffff); /* clear all */
71 /* Trace Pins are disabled. SDR0_PFC0 Register */
72 mtsdr(SDR0_PFC0, 0x0);
74 /* select Ethernet pins */
75 mfsdr(SDR0_PFC1, sdr0_pfc1);
77 sdr0_pfc1 = (sdr0_pfc1 & ~SDR0_PFC1_SELECT_MASK) |
78 SDR0_PFC1_SELECT_CONFIG_6;
79 mfsdr(SDR0_PFC2, sdr0_pfc2);
80 sdr0_pfc2 = (sdr0_pfc2 & ~SDR0_PFC2_SELECT_MASK) |
81 SDR0_PFC2_SELECT_CONFIG_6;
83 /* enable SPI (SCP) */
84 sdr0_pfc1 = (sdr0_pfc1 & ~SDR0_PFC1_SIS_MASK) | SDR0_PFC1_SIS_SCP_SEL;
86 mtsdr(SDR0_PFC2, sdr0_pfc2);
87 mtsdr(SDR0_PFC1, sdr0_pfc1);
89 mtsdr(SDR0_PFC4, 0x80000000);
91 /* PCI arbiter disabled */
92 /* PCI Host Configuration disbaled */
95 mtsdr(sdr_pci0, 0x00000000 | reg);
97 gpio_write_bit(CFG_GPIO_FLASH_WP, 1);
101 * The PHY's need a 2nd reset pulse, since the MDIO address is latched
102 * upon reset, and with the first reset upon powerup, the addresses are
103 * not latched reliable, since the IRQ line is multiplexed with an
104 * MDIO address. A 2nd reset at this time will make sure, that the
105 * correct address is latched.
107 gpio_write_bit(CFG_GPIO_PHY0_RST, 1);
108 gpio_write_bit(CFG_GPIO_PHY1_RST, 1);
110 gpio_write_bit(CFG_GPIO_PHY0_RST, 0);
111 gpio_write_bit(CFG_GPIO_PHY1_RST, 0);
113 gpio_write_bit(CFG_GPIO_PHY0_RST, 1);
114 gpio_write_bit(CFG_GPIO_PHY1_RST, 1);
119 /*---------------------------------------------------------------------------+
121 +---------------------------------------------------------------------------*/
122 int misc_init_r(void)
127 unsigned long usb2d0cr = 0;
128 unsigned long usb2phy0cr, usb2h0cr = 0;
129 unsigned long sdr0_pfc1;
135 /* Re-do sizing to get full correct info */
137 /* adjust flash start and offset */
138 gd->bd->bi_flashstart = 0 - gd->bd->bi_flashsize;
139 gd->bd->bi_flashoffset = 0;
142 switch (gd->bd->bi_flashsize) {
168 pbcr = (pbcr & 0x0001ffff) | gd->bd->bi_flashstart | (size_val << 17);
172 * Re-check to get correct base address
174 flash_get_size(gd->bd->bi_flashstart, 0);
176 /* Monitor protection ON by default */
177 (void)flash_protect(FLAG_PROTECT_SET,
182 /* Env protection ON by default */
183 (void)flash_protect(FLAG_PROTECT_SET,
185 CFG_ENV_ADDR_REDUND + 2*CFG_ENV_SECT_SIZE - 1,
192 mfsdr(SDR0_PFC1, sdr0_pfc1);
193 mfsdr(SDR0_USB0, usb2d0cr);
194 mfsdr(SDR0_USB2PHY0CR, usb2phy0cr);
195 mfsdr(SDR0_USB2H0CR, usb2h0cr);
197 usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_XOCLK_MASK;
198 usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_XOCLK_EXTERNAL; /*0*/
199 usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_WDINT_MASK;
200 usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_WDINT_16BIT_30MHZ; /*1*/
201 usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_DVBUS_MASK;
202 usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DVBUS_PURDIS; /*0*/
203 usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_DWNSTR_MASK;
204 usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DWNSTR_HOST; /*1*/
205 usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_UTMICN_MASK;
206 usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_UTMICN_HOST; /*1*/
208 /* An 8-bit/60MHz interface is the only possible alternative
209 when connecting the Device to the PHY */
210 usb2h0cr = usb2h0cr &~SDR0_USB2H0CR_WDINT_MASK;
211 usb2h0cr = usb2h0cr | SDR0_USB2H0CR_WDINT_16BIT_30MHZ; /*1*/
213 mtsdr(SDR0_PFC1, sdr0_pfc1);
214 mtsdr(SDR0_USB0, usb2d0cr);
215 mtsdr(SDR0_USB2PHY0CR, usb2phy0cr);
216 mtsdr(SDR0_USB2H0CR, usb2h0cr);
222 mtsdr(SDR0_SRST1, 0x00000000);
224 mtsdr(SDR0_SRST0, 0x00000000);
226 printf("USB: Host(int phy) Device(ext phy)\n");
229 * Clear PLB4A0_ACR[WRP]
230 * This fix will make the MAL burst disabling patch for the Linux
231 * EMAC driver obsolete.
233 reg = mfdcr(plb4_acr) & ~PLB4_ACR_WRP;
234 mtdcr(plb4_acr, reg);
237 * Reset Lime controller
239 gpio_write_bit(CFG_GPIO_LIME_S, 1);
241 gpio_write_bit(CFG_GPIO_LIME_RST, 1);
243 /* Lime memory clock adjusted to 100MHz */
244 out_be32((void *)CFG_LIME_SDRAM_CLOCK, CFG_LIME_CLOCK_100MHZ);
245 /* Wait untill time expired. Because of requirements in lime manual */
247 /* Write lime controller memory parameters */
248 out_be32((void *)CFG_LIME_MMR, CFG_LIME_MMR_VALUE);
251 * Init display controller
253 /* Setup dot clock (internal PLL, division rate 1/16) */
254 out_be32((void *)0xc1fd0100, 0x00000f00);
256 /* Lime L0 init (16 bpp, 640x480) */
257 out_be32((void *)0xc1fd0020, 0x801401df);
258 out_be32((void *)0xc1fd0024, 0x0);
259 out_be32((void *)0xc1fd0028, 0x0);
260 out_be32((void *)0xc1fd002c, 0x0);
261 out_be32((void *)0xc1fd0110, 0x0);
262 out_be32((void *)0xc1fd0114, 0x0);
263 out_be32((void *)0xc1fd0118, 0x01df0280);
265 /* Display timing init */
266 out_be32((void *)0xc1fd0004, 0x031f0000);
267 out_be32((void *)0xc1fd0008, 0x027f027f);
268 out_be32((void *)0xc1fd000c, 0x015f028f);
269 out_be32((void *)0xc1fd0010, 0x020c0000);
270 out_be32((void *)0xc1fd0014, 0x01df01ea);
271 out_be32((void *)0xc1fd0018, 0x0);
272 out_be32((void *)0xc1fd001c, 0x01e00280);
276 * Clear framebuffer using Lime's drawing engine
277 * (draw blue rect. with white border around it)
279 /* Setup mode and fbbase, xres, fg, bg */
280 out_be32((void *)0xc1ff0420, 0x8300);
281 out_be32((void *)0xc1ff0440, 0x0000);
282 out_be32((void *)0xc1ff0444, 0x0280);
283 out_be32((void *)0xc1ff0480, 0x7fff);
284 out_be32((void *)0xc1ff0484, 0x0000);
285 /* Reset clipping rectangle */
286 out_be32((void *)0xc1ff0454, 0x0000);
287 out_be32((void *)0xc1ff0458, 0x0280);
288 out_be32((void *)0xc1ff045c, 0x0000);
289 out_be32((void *)0xc1ff0460, 0x01e0);
290 /* Draw white rect. */
291 out_be32((void *)0xc1ff04a0, 0x09410000);
292 out_be32((void *)0xc1ff04a0, 0x00000000);
293 out_be32((void *)0xc1ff04a0, 0x01e00280);
295 /* Draw blue rect. */
296 out_be32((void *)0xc1ff0480, 0x001f);
297 out_be32((void *)0xc1ff04a0, 0x09410000);
298 out_be32((void *)0xc1ff04a0, 0x00010001);
299 out_be32((void *)0xc1ff04a0, 0x01de027e);
301 /* Display enable, L0 layer */
302 out_be32((void *)0xc1fd0100, 0x80010f00);
304 /* TFT-LCD enable - PWM duty, lamp on */
305 out_be32((void *)0xc4000024, 0x64);
306 out_be32((void *)0xc4000020, 0x701);
309 * Init matrix keyboard
318 char *s = getenv("serial#");
320 printf("Board: lwmon5");
331 #if defined(CFG_DRAM_TEST)
334 unsigned long *mem = (unsigned long *)0;
335 const unsigned long kend = (1024 / sizeof(unsigned long));
340 for (k = 0; k < CFG_MBYTES_SDRAM;
341 ++k, mem += (1024 / sizeof(unsigned long))) {
342 if ((k & 1023) == 0) {
343 printf("%3d MB\r", k / 1024);
346 memset(mem, 0xaaaaaaaa, 1024);
347 for (n = 0; n < kend; ++n) {
348 if (mem[n] != 0xaaaaaaaa) {
349 printf("SDRAM test fails at: %08x\n",
355 memset(mem, 0x55555555, 1024);
356 for (n = 0; n < kend; ++n) {
357 if (mem[n] != 0x55555555) {
358 printf("SDRAM test fails at: %08x\n",
364 printf("SDRAM test passes\n");
369 /*************************************************************************
372 * This routine is called just prior to registering the hose and gives
373 * the board the opportunity to check things. Returning a value of zero
374 * indicates that things are bad & PCI initialization should be aborted.
376 * Different boards may wish to customize the pci controller structure
377 * (add regions, override default access routines, etc) or perform
378 * certain pre-initialization actions.
380 ************************************************************************/
381 #if defined(CONFIG_PCI)
382 int pci_pre_init(struct pci_controller *hose)
386 /*-------------------------------------------------------------------------+
387 | Set priority for all PLB3 devices to 0.
388 | Set PLB3 arbiter to fair mode.
389 +-------------------------------------------------------------------------*/
390 mfsdr(sdr_amp1, addr);
391 mtsdr(sdr_amp1, (addr & 0x000000FF) | 0x0000FF00);
392 addr = mfdcr(plb3_acr);
393 mtdcr(plb3_acr, addr | 0x80000000);
395 /*-------------------------------------------------------------------------+
396 | Set priority for all PLB4 devices to 0.
397 +-------------------------------------------------------------------------*/
398 mfsdr(sdr_amp0, addr);
399 mtsdr(sdr_amp0, (addr & 0x000000FF) | 0x0000FF00);
400 addr = mfdcr(plb4_acr) | 0xa0000000; /* Was 0x8---- */
401 mtdcr(plb4_acr, addr);
403 /*-------------------------------------------------------------------------+
404 | Set Nebula PLB4 arbiter to fair mode.
405 +-------------------------------------------------------------------------*/
407 addr = (mfdcr(plb0_acr) & ~plb0_acr_ppm_mask) | plb0_acr_ppm_fair;
408 addr = (addr & ~plb0_acr_hbu_mask) | plb0_acr_hbu_enabled;
409 addr = (addr & ~plb0_acr_rdp_mask) | plb0_acr_rdp_4deep;
410 addr = (addr & ~plb0_acr_wrp_mask) | plb0_acr_wrp_2deep;
411 mtdcr(plb0_acr, addr);
414 addr = (mfdcr(plb1_acr) & ~plb1_acr_ppm_mask) | plb1_acr_ppm_fair;
415 addr = (addr & ~plb1_acr_hbu_mask) | plb1_acr_hbu_enabled;
416 addr = (addr & ~plb1_acr_rdp_mask) | plb1_acr_rdp_4deep;
417 addr = (addr & ~plb1_acr_wrp_mask) | plb1_acr_wrp_2deep;
418 mtdcr(plb1_acr, addr);
422 #endif /* defined(CONFIG_PCI) */
424 /*************************************************************************
427 * The bootstrap configuration provides default settings for the pci
428 * inbound map (PIM). But the bootstrap config choices are limited and
429 * may not be sufficient for a given board.
431 ************************************************************************/
432 #if defined(CONFIG_PCI) && defined(CFG_PCI_TARGET_INIT)
433 void pci_target_init(struct pci_controller *hose)
435 /*--------------------------------------------------------------------------+
436 * Set up Direct MMIO registers
437 *--------------------------------------------------------------------------*/
438 /*--------------------------------------------------------------------------+
439 | PowerPC440EPX PCI Master configuration.
440 | Map one 1Gig range of PLB/processor addresses to PCI memory space.
441 | PLB address 0xA0000000-0xDFFFFFFF ==> PCI address 0xA0000000-0xDFFFFFFF
442 | Use byte reversed out routines to handle endianess.
443 | Make this region non-prefetchable.
444 +--------------------------------------------------------------------------*/
445 out32r(PCIX0_PMM0MA, 0x00000000); /* PMM0 Mask/Attribute - disabled b4 setting */
446 out32r(PCIX0_PMM0LA, CFG_PCI_MEMBASE); /* PMM0 Local Address */
447 out32r(PCIX0_PMM0PCILA, CFG_PCI_MEMBASE); /* PMM0 PCI Low Address */
448 out32r(PCIX0_PMM0PCIHA, 0x00000000); /* PMM0 PCI High Address */
449 out32r(PCIX0_PMM0MA, 0xE0000001); /* 512M + No prefetching, and enable region */
451 out32r(PCIX0_PMM1MA, 0x00000000); /* PMM0 Mask/Attribute - disabled b4 setting */
452 out32r(PCIX0_PMM1LA, CFG_PCI_MEMBASE2); /* PMM0 Local Address */
453 out32r(PCIX0_PMM1PCILA, CFG_PCI_MEMBASE2); /* PMM0 PCI Low Address */
454 out32r(PCIX0_PMM1PCIHA, 0x00000000); /* PMM0 PCI High Address */
455 out32r(PCIX0_PMM1MA, 0xE0000001); /* 512M + No prefetching, and enable region */
457 out32r(PCIX0_PTM1MS, 0x00000001); /* Memory Size/Attribute */
458 out32r(PCIX0_PTM1LA, 0); /* Local Addr. Reg */
459 out32r(PCIX0_PTM2MS, 0); /* Memory Size/Attribute */
460 out32r(PCIX0_PTM2LA, 0); /* Local Addr. Reg */
462 /*--------------------------------------------------------------------------+
463 * Set up Configuration registers
464 *--------------------------------------------------------------------------*/
466 /* Program the board's subsystem id/vendor id */
467 pci_write_config_word(0, PCI_SUBSYSTEM_VENDOR_ID,
468 CFG_PCI_SUBSYS_VENDORID);
469 pci_write_config_word(0, PCI_SUBSYSTEM_ID, CFG_PCI_SUBSYS_ID);
471 /* Configure command register as bus master */
472 pci_write_config_word(0, PCI_COMMAND, PCI_COMMAND_MASTER);
474 /* 240nS PCI clock */
475 pci_write_config_word(0, PCI_LATENCY_TIMER, 1);
477 /* No error reporting */
478 pci_write_config_word(0, PCI_ERREN, 0);
480 pci_write_config_dword(0, PCI_BRDGOPT2, 0x00000101);
483 #endif /* defined(CONFIG_PCI) && defined(CFG_PCI_TARGET_INIT) */
485 /*************************************************************************
488 ************************************************************************/
489 #if defined(CONFIG_PCI) && defined(CFG_PCI_MASTER_INIT)
490 void pci_master_init(struct pci_controller *hose)
492 unsigned short temp_short;
494 /*--------------------------------------------------------------------------+
495 | Write the PowerPC440 EP PCI Configuration regs.
496 | Enable PowerPC440 EP to be a master on the PCI bus (PMM).
497 | Enable PowerPC440 EP to act as a PCI memory target (PTM).
498 +--------------------------------------------------------------------------*/
499 pci_read_config_word(0, PCI_COMMAND, &temp_short);
500 pci_write_config_word(0, PCI_COMMAND,
501 temp_short | PCI_COMMAND_MASTER |
504 #endif /* defined(CONFIG_PCI) && defined(CFG_PCI_MASTER_INIT) */
506 /*************************************************************************
509 * This routine is called to determine if a pci scan should be
510 * performed. With various hardware environments (especially cPCI and
511 * PPMC) it's insufficient to depend on the state of the arbiter enable
512 * bit in the strap register, or generic host/adapter assumptions.
514 * Rather than hard-code a bad assumption in the general 440 code, the
515 * 440 pci code requires the board to decide at runtime.
517 * Return 0 for adapter mode, non-zero for host (monarch) mode.
520 ************************************************************************/
521 #if defined(CONFIG_PCI)
522 int is_pci_host(struct pci_controller *hose)
524 /* Cactus is always configured as host. */
527 #endif /* defined(CONFIG_PCI) */
529 void hw_watchdog_reset(void)
534 * Toggle watchdog output
536 val = gpio_read_out_bit(CFG_GPIO_WATCHDOG) == 0 ? 1 : 0;
537 gpio_write_bit(CFG_GPIO_WATCHDOG, val);
540 int do_eeprom_wp(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
543 printf("Usage:\n%s\n", cmdtp->usage);
547 if ((strcmp(argv[1], "on") == 0)) {
548 gpio_write_bit(CFG_GPIO_EEPROM_EXT_WP, 1);
549 } else if ((strcmp(argv[1], "off") == 0)) {
550 gpio_write_bit(CFG_GPIO_EEPROM_EXT_WP, 0);
552 printf("Usage:\n%s\n", cmdtp->usage);
561 eepromwp, 2, 0, do_eeprom_wp,
562 "eepromwp- eeprom write protect off/on\n",
563 "<on|off> - enable (on) or disable (off) I2C EEPROM write protect\n"