2 * (C) Copyright 2006-2007
3 * Stefan Roese, DENX Software Engineering, sr@denx.de.
6 * Jacqueline Pira-Ferriol, AMCC/IBM, jpira-ferriol@fr.ibm.com
7 * Alain Saurel, AMCC/IBM, alain.saurel@fr.ibm.com
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License as
11 * published by the Free Software Foundation; either version 2 of
12 * the License, or (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
27 #include <fdt_support.h>
30 #include <asm/processor.h>
32 #include <asm/bitops.h>
33 #include <asm/ppc4xx-intvec.h>
35 DECLARE_GLOBAL_DATA_PTR;
37 extern flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */
39 ulong flash_get_size (ulong base, int banknum);
41 int board_early_init_f(void)
44 u32 sdr0_pfc1, sdr0_pfc2;
47 mtdcr(ebccfga, xbcfg);
48 mtdcr(ebccfgd, 0xb8400000);
51 * Setup the interrupt controller polarities, triggers, etc.
53 mtdcr(uic0sr, 0xffffffff); /* clear all */
54 mtdcr(uic0er, 0x00000000); /* disable all */
55 mtdcr(uic0cr, 0x00000005); /* ATI & UIC1 crit are critical */
56 mtdcr(uic0pr, 0xfffff7ff); /* per ref-board manual */
57 mtdcr(uic0tr, 0x00000000); /* per ref-board manual */
58 mtdcr(uic0vr, 0x00000000); /* int31 highest, base=0x000 */
59 mtdcr(uic0sr, 0xffffffff); /* clear all */
61 mtdcr(uic1sr, 0xffffffff); /* clear all */
62 mtdcr(uic1er, 0x00000000); /* disable all */
63 mtdcr(uic1cr, 0x00000000); /* all non-critical */
64 mtdcr(uic1pr, 0xffffffff); /* per ref-board manual */
65 mtdcr(uic1tr, 0x00000000); /* per ref-board manual */
66 mtdcr(uic1vr, 0x00000000); /* int31 highest, base=0x000 */
67 mtdcr(uic1sr, 0xffffffff); /* clear all */
69 mtdcr(uic2sr, 0xffffffff); /* clear all */
70 mtdcr(uic2er, 0x00000000); /* disable all */
71 mtdcr(uic2cr, 0x00000000); /* all non-critical */
72 mtdcr(uic2pr, 0xffffffff); /* per ref-board manual */
73 mtdcr(uic2tr, 0x00000000); /* per ref-board manual */
74 mtdcr(uic2vr, 0x00000000); /* int31 highest, base=0x000 */
75 mtdcr(uic2sr, 0xffffffff); /* clear all */
78 out_8((u8 *) CFG_BCSR_BASE + 0x04, 0x00);
80 /* clear write protects */
81 out_8((u8 *) CFG_BCSR_BASE + 0x07, 0x00);
84 out_8((u8 *) CFG_BCSR_BASE + 0x08, 0x00);
86 /* enable USB device */
87 out_8((u8 *) CFG_BCSR_BASE + 0x09, 0x20);
89 /* select Ethernet (and optionally IIC1) pins */
90 mfsdr(SDR0_PFC1, sdr0_pfc1);
91 sdr0_pfc1 = (sdr0_pfc1 & ~SDR0_PFC1_SELECT_MASK) |
92 SDR0_PFC1_SELECT_CONFIG_4;
93 #ifdef CONFIG_I2C_MULTI_BUS
94 sdr0_pfc1 |= ((sdr0_pfc1 & ~SDR0_PFC1_SIS_MASK) | SDR0_PFC1_SIS_IIC1_SEL);
96 /* Two UARTs, so we need 4-pin mode. Also, we want CTS/RTS mode. */
97 sdr0_pfc1 = (sdr0_pfc1 & ~SDR0_PFC1_U0IM_MASK) | SDR0_PFC1_U0IM_4PINS;
98 sdr0_pfc1 = (sdr0_pfc1 & ~SDR0_PFC1_U0ME_MASK) | SDR0_PFC1_U0ME_CTS_RTS;
99 sdr0_pfc1 = (sdr0_pfc1 & ~SDR0_PFC1_U1ME_MASK) | SDR0_PFC1_U1ME_CTS_RTS;
101 mfsdr(SDR0_PFC2, sdr0_pfc2);
102 sdr0_pfc2 = (sdr0_pfc2 & ~SDR0_PFC2_SELECT_MASK) |
103 SDR0_PFC2_SELECT_CONFIG_4;
104 mtsdr(SDR0_PFC2, sdr0_pfc2);
105 mtsdr(SDR0_PFC1, sdr0_pfc1);
107 /* PCI arbiter enabled */
108 mfsdr(sdr_pci0, reg);
109 mtsdr(sdr_pci0, 0x80000000 | reg);
111 /* setup NAND FLASH */
112 mfsdr(SDR0_CUST0, sdr0_cust0);
113 sdr0_cust0 = SDR0_CUST0_MUX_NDFC_SEL |
114 SDR0_CUST0_NDFC_ENABLE |
115 SDR0_CUST0_NDFC_BW_8_BIT |
116 SDR0_CUST0_NDFC_ARE_MASK |
117 (0x80000000 >> (28 + CFG_NAND_CS));
118 mtsdr(SDR0_CUST0, sdr0_cust0);
123 int misc_init_r(void)
129 unsigned long usb2d0cr = 0;
130 unsigned long usb2phy0cr, usb2h0cr = 0;
131 unsigned long sdr0_pfc1;
132 char *act = getenv("usbact");
135 /* Re-do flash 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;
141 #if defined(CONFIG_NAND_U_BOOT) || defined(CONFIG_NAND_SPL)
142 mtdcr(ebccfga, pb3cr);
144 mtdcr(ebccfga, pb0cr);
146 pbcr = mfdcr(ebccfgd);
147 size_val = ffs(gd->bd->bi_flashsize) - 21;
148 pbcr = (pbcr & 0x0001ffff) | gd->bd->bi_flashstart | (size_val << 17);
149 #if defined(CONFIG_NAND_U_BOOT) || defined(CONFIG_NAND_SPL)
150 mtdcr(ebccfga, pb3cr);
152 mtdcr(ebccfga, pb0cr);
154 mtdcr(ebccfgd, pbcr);
157 * Re-check to get correct base address
159 flash_get_size(gd->bd->bi_flashstart, 0);
161 #ifdef CFG_ENV_IS_IN_FLASH
162 /* Monitor protection ON by default */
163 (void)flash_protect(FLAG_PROTECT_SET,
168 /* Env protection ON by default */
169 (void)flash_protect(FLAG_PROTECT_SET,
171 CFG_ENV_ADDR_REDUND + 2*CFG_ENV_SECT_SIZE - 1,
179 if (act == NULL || strcmp(act, "hostdev") == 0) {
181 mfsdr(SDR0_PFC1, sdr0_pfc1);
182 mfsdr(SDR0_USB2D0CR, usb2d0cr);
183 mfsdr(SDR0_USB2PHY0CR, usb2phy0cr);
184 mfsdr(SDR0_USB2H0CR, usb2h0cr);
186 usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_XOCLK_MASK;
187 usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_XOCLK_EXTERNAL;
188 usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_WDINT_MASK;
189 usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_WDINT_16BIT_30MHZ;
190 usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_DVBUS_MASK;
191 usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DVBUS_PURDIS;
192 usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_DWNSTR_MASK;
193 usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DWNSTR_HOST;
194 usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_UTMICN_MASK;
195 usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_UTMICN_HOST;
198 * An 8-bit/60MHz interface is the only possible alternative
199 * when connecting the Device to the PHY
201 usb2h0cr = usb2h0cr &~SDR0_USB2H0CR_WDINT_MASK;
202 usb2h0cr = usb2h0cr | SDR0_USB2H0CR_WDINT_16BIT_30MHZ;
205 * To enable the USB 2.0 Device function
206 * through the UTMI interface
208 usb2d0cr = usb2d0cr &~SDR0_USB2D0CR_USB2DEV_EBC_SEL_MASK;
209 usb2d0cr = usb2d0cr | SDR0_USB2D0CR_USB2DEV_SELECTION;
211 sdr0_pfc1 = sdr0_pfc1 &~SDR0_PFC1_UES_MASK;
212 sdr0_pfc1 = sdr0_pfc1 | SDR0_PFC1_UES_USB2D_SEL;
214 mtsdr(SDR0_PFC1, sdr0_pfc1);
215 mtsdr(SDR0_USB2D0CR, usb2d0cr);
216 mtsdr(SDR0_USB2PHY0CR, usb2phy0cr);
217 mtsdr(SDR0_USB2H0CR, usb2h0cr);
221 mtsdr(SDR0_SRST1, 0x00000000);
223 mtsdr(SDR0_SRST0, 0x00000000);
225 printf("USB: Host(int phy) Device(ext phy)\n");
227 } else if (strcmp(act, "dev") == 0) {
228 /*-------------------PATCH-------------------------------*/
229 mfsdr(SDR0_USB2PHY0CR, usb2phy0cr);
231 usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_XOCLK_MASK;
232 usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_XOCLK_EXTERNAL;
233 usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_DVBUS_MASK;
234 usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DVBUS_PURDIS;
235 usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_DWNSTR_MASK;
236 usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DWNSTR_HOST;
237 usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_UTMICN_MASK;
238 usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_UTMICN_HOST;
239 mtsdr(SDR0_USB2PHY0CR, usb2phy0cr);
242 mtsdr(SDR0_SRST1, 0x672c6000);
245 mtsdr(SDR0_SRST0, 0x00000080);
248 mtsdr(SDR0_SRST1, 0x60206000);
250 *(unsigned int *)(0xe0000350) = 0x00000001;
253 mtsdr(SDR0_SRST1, 0x60306000);
254 /*-------------------PATCH-------------------------------*/
257 mfsdr(SDR0_USB2PHY0CR, usb2phy0cr);
258 mfsdr(SDR0_USB2H0CR, usb2h0cr);
259 mfsdr(SDR0_USB2D0CR, usb2d0cr);
260 mfsdr(SDR0_PFC1, sdr0_pfc1);
262 usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_XOCLK_MASK;
263 usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_XOCLK_EXTERNAL;
264 usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_WDINT_MASK;
265 usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_WDINT_8BIT_60MHZ;
266 usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_DVBUS_MASK;
267 usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DVBUS_PUREN;
268 usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_DWNSTR_MASK;
269 usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DWNSTR_DEV;
270 usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_UTMICN_MASK;
271 usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_UTMICN_DEV;
273 usb2h0cr = usb2h0cr &~SDR0_USB2H0CR_WDINT_MASK;
274 usb2h0cr = usb2h0cr | SDR0_USB2H0CR_WDINT_8BIT_60MHZ;
276 usb2d0cr = usb2d0cr &~SDR0_USB2D0CR_USB2DEV_EBC_SEL_MASK;
277 usb2d0cr = usb2d0cr | SDR0_USB2D0CR_EBC_SELECTION;
279 sdr0_pfc1 = sdr0_pfc1 &~SDR0_PFC1_UES_MASK;
280 sdr0_pfc1 = sdr0_pfc1 | SDR0_PFC1_UES_EBCHR_SEL;
282 mtsdr(SDR0_USB2H0CR, usb2h0cr);
283 mtsdr(SDR0_USB2PHY0CR, usb2phy0cr);
284 mtsdr(SDR0_USB2D0CR, usb2d0cr);
285 mtsdr(SDR0_PFC1, sdr0_pfc1);
289 mtsdr(SDR0_SRST1, 0x00000000);
291 mtsdr(SDR0_SRST0, 0x00000000);
293 printf("USB: Device(int phy)\n");
295 #endif /* CONFIG_440EPX */
297 mfsdr(SDR0_SRST1, reg); /* enable security/kasumi engines */
298 reg &= ~(SDR0_SRST1_CRYP0 | SDR0_SRST1_KASU0);
299 mtsdr(SDR0_SRST1, reg);
302 * Clear PLB4A0_ACR[WRP]
303 * This fix will make the MAL burst disabling patch for the Linux
304 * EMAC driver obsolete.
306 reg = mfdcr(plb4_acr) & ~PLB4_ACR_WRP;
307 mtdcr(plb4_acr, reg);
314 char *s = getenv("serial#");
319 printf("Board: Sequoia - AMCC PPC440EPx Evaluation Board");
321 printf("Board: Rainier - AMCC PPC440GRx Evaluation Board");
324 rev = in_8((void *)(CFG_BCSR_BASE + 0));
325 val = in_8((void *)(CFG_BCSR_BASE + 5)) & CFG_BCSR5_PCI66EN;
326 printf(", Rev. %X, PCI=%d MHz", rev, val ? 66 : 33);
337 #if defined(CONFIG_PCI) && defined(CONFIG_PCI_PNP)
339 * Assign interrupts to PCI devices.
341 void sequoia_pci_fixup_irq(struct pci_controller *hose, pci_dev_t dev)
343 pci_hose_write_config_byte(hose, dev, PCI_INTERRUPT_LINE, VECNUM_EIR2);
350 * This routine is called just prior to registering the hose and gives
351 * the board the opportunity to check things. Returning a value of zero
352 * indicates that things are bad & PCI initialization should be aborted.
354 * Different boards may wish to customize the pci controller structure
355 * (add regions, override default access routines, etc) or perform
356 * certain pre-initialization actions.
358 #if defined(CONFIG_PCI)
359 int pci_pre_init(struct pci_controller *hose)
364 * Set priority for all PLB3 devices to 0.
365 * Set PLB3 arbiter to fair mode.
367 mfsdr(sdr_amp1, addr);
368 mtsdr(sdr_amp1, (addr & 0x000000FF) | 0x0000FF00);
369 addr = mfdcr(plb3_acr);
370 mtdcr(plb3_acr, addr | 0x80000000);
373 * Set priority for all PLB4 devices to 0.
375 mfsdr(sdr_amp0, addr);
376 mtsdr(sdr_amp0, (addr & 0x000000FF) | 0x0000FF00);
377 addr = mfdcr(plb4_acr) | 0xa0000000; /* Was 0x8---- */
378 mtdcr(plb4_acr, addr);
381 * Set Nebula PLB4 arbiter to fair mode.
384 addr = (mfdcr(plb0_acr) & ~plb0_acr_ppm_mask) | plb0_acr_ppm_fair;
385 addr = (addr & ~plb0_acr_hbu_mask) | plb0_acr_hbu_enabled;
386 addr = (addr & ~plb0_acr_rdp_mask) | plb0_acr_rdp_4deep;
387 addr = (addr & ~plb0_acr_wrp_mask) | plb0_acr_wrp_2deep;
388 mtdcr(plb0_acr, addr);
391 addr = (mfdcr(plb1_acr) & ~plb1_acr_ppm_mask) | plb1_acr_ppm_fair;
392 addr = (addr & ~plb1_acr_hbu_mask) | plb1_acr_hbu_enabled;
393 addr = (addr & ~plb1_acr_rdp_mask) | plb1_acr_rdp_4deep;
394 addr = (addr & ~plb1_acr_wrp_mask) | plb1_acr_wrp_2deep;
395 mtdcr(plb1_acr, addr);
397 #ifdef CONFIG_PCI_PNP
398 hose->fixup_irq = sequoia_pci_fixup_irq;
402 #endif /* defined(CONFIG_PCI) */
407 * The bootstrap configuration provides default settings for the pci
408 * inbound map (PIM). But the bootstrap config choices are limited and
409 * may not be sufficient for a given board.
411 #if defined(CONFIG_PCI) && defined(CFG_PCI_TARGET_INIT)
412 void pci_target_init(struct pci_controller *hose)
415 * Set up Direct MMIO registers
418 * PowerPC440EPX PCI Master configuration.
419 * Map one 1Gig range of PLB/processor addresses to PCI memory space.
420 * PLB address 0xA0000000-0xDFFFFFFF
421 * ==> PCI address 0xA0000000-0xDFFFFFFF
422 * Use byte reversed out routines to handle endianess.
423 * Make this region non-prefetchable.
425 out32r(PCIX0_PMM0MA, 0x00000000); /* PMM0 Mask/Attribute */
426 /* - disabled b4 setting */
427 out32r(PCIX0_PMM0LA, CFG_PCI_MEMBASE); /* PMM0 Local Address */
428 out32r(PCIX0_PMM0PCILA, CFG_PCI_MEMBASE); /* PMM0 PCI Low Address */
429 out32r(PCIX0_PMM0PCIHA, 0x00000000); /* PMM0 PCI High Address */
430 out32r(PCIX0_PMM0MA, 0xE0000001); /* 512M + No prefetching, */
431 /* and enable region */
433 out32r(PCIX0_PMM1MA, 0x00000000); /* PMM0 Mask/Attribute */
434 /* - disabled b4 setting */
435 out32r(PCIX0_PMM1LA, CFG_PCI_MEMBASE2); /* PMM0 Local Address */
436 out32r(PCIX0_PMM1PCILA, CFG_PCI_MEMBASE2); /* PMM0 PCI Low Address */
437 out32r(PCIX0_PMM1PCIHA, 0x00000000); /* PMM0 PCI High Address */
438 out32r(PCIX0_PMM1MA, 0xE0000001); /* 512M + No prefetching, */
439 /* and enable region */
441 out32r(PCIX0_PTM1MS, 0x00000001); /* Memory Size/Attribute */
442 out32r(PCIX0_PTM1LA, 0); /* Local Addr. Reg */
443 out32r(PCIX0_PTM2MS, 0); /* Memory Size/Attribute */
444 out32r(PCIX0_PTM2LA, 0); /* Local Addr. Reg */
447 * Set up Configuration registers
450 /* Program the board's subsystem id/vendor id */
451 pci_write_config_word(0, PCI_SUBSYSTEM_VENDOR_ID,
452 CFG_PCI_SUBSYS_VENDORID);
453 pci_write_config_word(0, PCI_SUBSYSTEM_ID, CFG_PCI_SUBSYS_ID);
455 /* Configure command register as bus master */
456 pci_write_config_word(0, PCI_COMMAND, PCI_COMMAND_MASTER);
458 /* 240nS PCI clock */
459 pci_write_config_word(0, PCI_LATENCY_TIMER, 1);
461 /* No error reporting */
462 pci_write_config_word(0, PCI_ERREN, 0);
464 pci_write_config_dword(0, PCI_BRDGOPT2, 0x00000101);
467 #endif /* defined(CONFIG_PCI) && defined(CFG_PCI_TARGET_INIT) */
469 #if defined(CONFIG_PCI) && defined(CFG_PCI_MASTER_INIT)
470 void pci_master_init(struct pci_controller *hose)
472 unsigned short temp_short;
475 * Write the PowerPC440 EP PCI Configuration regs.
476 * Enable PowerPC440 EP to be a master on the PCI bus (PMM).
477 * Enable PowerPC440 EP to act as a PCI memory target (PTM).
479 pci_read_config_word(0, PCI_COMMAND, &temp_short);
480 pci_write_config_word(0, PCI_COMMAND,
481 temp_short | PCI_COMMAND_MASTER |
484 #endif /* defined(CONFIG_PCI) && defined(CFG_PCI_MASTER_INIT) */
489 * This routine is called to determine if a pci scan should be
490 * performed. With various hardware environments (especially cPCI and
491 * PPMC) it's insufficient to depend on the state of the arbiter enable
492 * bit in the strap register, or generic host/adapter assumptions.
494 * Rather than hard-code a bad assumption in the general 440 code, the
495 * 440 pci code requires the board to decide at runtime.
497 * Return 0 for adapter mode, non-zero for host (monarch) mode.
499 #if defined(CONFIG_PCI)
500 int is_pci_host(struct pci_controller *hose)
502 /* Cactus is always configured as host. */
505 #endif /* defined(CONFIG_PCI) */
507 #if defined(CONFIG_POST)
509 * Returns 1 if keys pressed to start the power-on long-running tests
510 * Called from board_init_f().
512 int post_hotkeys_pressed(void)
514 return 0; /* No hotkeys supported */
516 #endif /* CONFIG_POST */