2 * Copyright (C) 2003 Travis B. Sawyer <travis.sawyer@sandburst.com>
4 * See file CREDITS for list of people who contributed to this
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License as
9 * published by the Free Software Foundation; either version 2 of
10 * the License, or (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
25 #include <asm/processor.h>
26 #include <spd_sdram.h>
29 #define BOOT_SMALL_FLASH 32 /* 00100000 */
30 #define FLASH_ONBD_N 2 /* 00000010 */
31 #define FLASH_SRAM_SEL 1 /* 00000001 */
33 long int fixed_sdram (void);
35 int board_early_init_f(void)
38 /* TBS: Setup the GPIO access for the user LEDs */
39 mfsdr(sdr_pfc0, sdrreg);
40 mtsdr(sdr_pfc0, (sdrreg & ~0x00000100) | 0x00000E00);
41 out32(CFG_GPIO_BASE + 0x018, (USR_LED0 | USR_LED1 | USR_LED2 | USR_LED3));
47 /*--------------------------------------------------------------------
48 * Setup the external bus controller/chip selects
49 *-------------------------------------------------------------------*/
51 /* set the bus controller */
52 mtebc (pb0ap, 0x04055200); /* FLASH/SRAM */
53 mtebc (pb0cr, 0xfff18000); /* BAS=0xfff 1MB R/W 8-bit */
54 mtebc (pb1ap, 0x04055200); /* FLASH/SRAM */
55 mtebc (pb1cr, 0xfe098000); /* BAS=0xff8 16MB R/W 8-bit */
57 /*--------------------------------------------------------------------
58 * Setup the interrupt controller polarities, triggers, etc.
59 *-------------------------------------------------------------------*/
60 mtdcr (uic0sr, 0xffffffff); /* clear all */
61 mtdcr (uic0er, 0x00000000); /* disable all */
62 mtdcr (uic0cr, 0x00000003); /* SMI & UIC1 crit are critical */
63 mtdcr (uic0pr, 0xfffffe00); /* per ref-board manual */
64 mtdcr (uic0tr, 0x01c00000); /* per ref-board manual */
65 mtdcr (uic0vr, 0x00000001); /* int31 highest, base=0x000 */
66 mtdcr (uic0sr, 0xffffffff); /* clear all */
68 mtdcr (uic1sr, 0xffffffff); /* clear all */
69 mtdcr (uic1er, 0x00000000); /* disable all */
70 mtdcr (uic1cr, 0x00000000); /* all non-critical */
71 mtdcr (uic1pr, 0xffffc0ff); /* per ref-board manual */
72 mtdcr (uic1tr, 0x00ff8000); /* per ref-board manual */
73 mtdcr (uic1vr, 0x00000001); /* int31 highest, base=0x000 */
74 mtdcr (uic1sr, 0xffffffff); /* clear all */
76 mtdcr (uic2sr, 0xffffffff); /* clear all */
77 mtdcr (uic2er, 0x00000000); /* disable all */
78 mtdcr (uic2cr, 0x00000000); /* all non-critical */
79 mtdcr (uic2pr, 0xffffffff); /* per ref-board manual */
80 mtdcr (uic2tr, 0x00ff8c0f); /* per ref-board manual */
81 mtdcr (uic2vr, 0x00000001); /* int31 highest, base=0x000 */
82 mtdcr (uic2sr, 0xffffffff); /* clear all */
84 mtdcr (uicb0sr, 0xfc000000); /* clear all */
85 mtdcr (uicb0er, 0x00000000); /* disable all */
86 mtdcr (uicb0cr, 0x00000000); /* all non-critical */
87 mtdcr (uicb0pr, 0xfc000000); /* */
88 mtdcr (uicb0tr, 0x00000000); /* */
89 mtdcr (uicb0vr, 0x00000001); /* */
100 get_sys_info (&sysinfo);
102 printf ("Board: XES XPedite1000 440GX\n");
103 printf ("\tVCO: %lu MHz\n", sysinfo.freqVCOMhz / 1000000);
104 printf ("\tCPU: %lu MHz\n", sysinfo.freqProcessor / 1000000);
105 printf ("\tPLB: %lu MHz\n", sysinfo.freqPLB / 1000000);
106 printf ("\tOPB: %lu MHz\n", sysinfo.freqOPB / 1000000);
107 printf ("\tEPB: %lu MHz\n", sysinfo.freqEPB / 1000000);
113 long int initdram (int board_type)
117 #if defined(CONFIG_SPD_EEPROM)
118 dram_size = spd_sdram (0);
120 dram_size = fixed_sdram ();
126 #if defined(CFG_DRAM_TEST)
129 uint *pstart = (uint *) 0x00000000;
130 uint *pend = (uint *) 0x08000000;
133 for (p = pstart; p < pend; p++)
136 for (p = pstart; p < pend; p++) {
137 if (*p != 0xaaaaaaaa) {
138 printf ("SDRAM test fails at: %08x\n", (uint) p);
143 for (p = pstart; p < pend; p++)
146 for (p = pstart; p < pend; p++) {
147 if (*p != 0x55555555) {
148 printf ("SDRAM test fails at: %08x\n", (uint) p);
156 #if !defined(CONFIG_SPD_EEPROM)
157 /*************************************************************************
158 * fixed sdram init -- doesn't use serial presence detect.
160 * Assumes: 128 MB, non-ECC, non-registered
163 ************************************************************************/
164 long int fixed_sdram (void)
168 /*--------------------------------------------------------------------
170 *------------------------------------------------------------------*/
171 mtsdram (mem_uabba, 0x00000000); /* ubba=0 (default) */
172 mtsdram (mem_slio, 0x00000000); /* rdre=0 wrre=0 rarw=0 */
173 mtsdram (mem_devopt, 0x00000000); /* dll=0 ds=0 (normal) */
174 mtsdram (mem_wddctr, 0x00000000); /* wrcp=0 dcd=0 */
175 mtsdram (mem_clktr, 0x40000000); /* clkp=1 (90 deg wr) dcdt=0 */
177 /*--------------------------------------------------------------------
178 * Setup for board-specific specific mem
179 *------------------------------------------------------------------*/
181 * Following for CAS Latency = 2.5 @ 133 MHz PLB
183 mtsdram (mem_b0cr, 0x000a4001); /* SDBA=0x000 128MB, Mode 3, enabled */
184 mtsdram (mem_tr0, 0x410a4012); /* WR=2 WD=1 CL=2.5 PA=3 CP=4 LD=2 */
186 mtsdram (mem_tr1, 0x8080082f); /* SS=T2 SL=STAGE 3 CD=1 CT=0x02f */
187 mtsdram (mem_rtr, 0x08200000); /* Rate 15.625 ns @ 133 MHz PLB */
188 mtsdram (mem_cfg1, 0x00000000); /* Self-refresh exit, disable PM */
189 udelay (400); /* Delay 200 usecs (min) */
191 /*--------------------------------------------------------------------
192 * Enable the controller, then wait for DCEN to complete
193 *------------------------------------------------------------------*/
194 mtsdram (mem_cfg0, 0x86000000); /* DCEN=1, PMUD=1, 64-bit */
196 mfsdram (mem_mcsts, reg);
197 if (reg & 0x80000000)
201 return (128 * 1024 * 1024); /* 128 MB */
203 #endif /* !defined(CONFIG_SPD_EEPROM) */
206 /*************************************************************************
209 * This routine is called just prior to registering the hose and gives
210 * the board the opportunity to check things. Returning a value of zero
211 * indicates that things are bad & PCI initialization should be aborted.
213 * Different boards may wish to customize the pci controller structure
214 * (add regions, override default access routines, etc) or perform
215 * certain pre-initialization actions.
217 ************************************************************************/
218 #if defined(CONFIG_PCI) && defined(CFG_PCI_PRE_INIT)
219 int pci_pre_init(struct pci_controller * hose )
222 /* See if we're supposed to setup the pci */
223 mfsdr(sdr_sdstp1, strap);
224 if ((strap & 0x00010000) == 0) {
228 #if defined(CFG_PCI_FORCE_PCI_CONV)
229 /* Setup System Device Register PCIX0_XCR */
230 mfsdr(sdr_xcr, strap);
232 mtsdr(sdr_xcr, strap);
236 #endif /* defined(CONFIG_PCI) && defined(CFG_PCI_PRE_INIT) */
238 /*************************************************************************
241 * The bootstrap configuration provides default settings for the pci
242 * inbound map (PIM). But the bootstrap config choices are limited and
243 * may not be sufficient for a given board.
245 ************************************************************************/
246 #if defined(CONFIG_PCI) && defined(CFG_PCI_TARGET_INIT)
247 void pci_target_init(struct pci_controller * hose )
249 DECLARE_GLOBAL_DATA_PTR;
251 /*--------------------------------------------------------------------------+
253 *--------------------------------------------------------------------------*/
254 out32r( PCIX0_PIM0SA, 0 ); /* disable */
255 out32r( PCIX0_PIM1SA, 0 ); /* disable */
256 out32r( PCIX0_PIM2SA, 0 ); /* disable */
257 out32r( PCIX0_EROMBA, 0 ); /* disable expansion rom */
259 /*--------------------------------------------------------------------------+
260 * Map all of SDRAM to PCI address 0x0000_0000. Note that the 440 strapping
261 * options to not support sizes such as 128/256 MB.
262 *--------------------------------------------------------------------------*/
263 out32r( PCIX0_PIM0LAL, CFG_SDRAM_BASE );
264 out32r( PCIX0_PIM0LAH, 0 );
265 out32r( PCIX0_PIM0SA, ~(gd->ram_size - 1) | 1 );
267 out32r( PCIX0_BAR0, 0 );
269 /*--------------------------------------------------------------------------+
270 * Program the board's subsystem id/vendor id
271 *--------------------------------------------------------------------------*/
272 out16r( PCIX0_SBSYSVID, CFG_PCI_SUBSYS_VENDORID );
273 out16r( PCIX0_SBSYSID, CFG_PCI_SUBSYS_DEVICEID );
275 out16r( PCIX0_CMD, in16r(PCIX0_CMD) | PCI_COMMAND_MEMORY );
277 #endif /* defined(CONFIG_PCI) && defined(CFG_PCI_TARGET_INIT) */
280 /*************************************************************************
283 * This routine is called to determine if a pci scan should be
284 * performed. With various hardware environments (especially cPCI and
285 * PPMC) it's insufficient to depend on the state of the arbiter enable
286 * bit in the strap register, or generic host/adapter assumptions.
288 * Rather than hard-code a bad assumption in the general 440 code, the
289 * 440 pci code requires the board to decide at runtime.
291 * Return 0 for adapter mode, non-zero for host (monarch) mode.
294 ************************************************************************/
295 #if defined(CONFIG_PCI)
296 int is_pci_host(struct pci_controller *hose)
298 return ((in32(CFG_GPIO_BASE + 0x1C) & 0x00000800) == 0);
300 #endif /* defined(CONFIG_PCI) */
304 * Returns 1 if keys pressed to start the power-on long-running tests
305 * Called from board_init_f().
307 int post_hotkeys_pressed(void)
313 void post_word_store (ulong a)
315 volatile ulong *save_addr =
316 (volatile ulong *)(CFG_POST_WORD_ADDR);
321 ulong post_word_load (void)
323 volatile ulong *save_addr =
324 (volatile ulong *)(CFG_POST_WORD_ADDR);
330 /*-----------------------------------------------------------------------------
331 * board_get_enetaddr -- Read the MAC Addresses in the I2C EEPROM
332 *-----------------------------------------------------------------------------
334 static int enetaddr_num = 0;
335 void board_get_enetaddr (uchar * enet)
338 unsigned char buff[0x100], *cp;
341 i2c_init (CFG_I2C_SPEED, CFG_I2C_SLAVE);
343 /* Read 256 bytes in EEPROM */
344 i2c_read (0x50, 0, 1, buff, 0x100);
346 if (enetaddr_num == 0) {
353 for (i = 0; i < 6; i++,cp++)
356 printf ("MAC address = %02x:%02x:%02x:%02x:%02x:%02x\n",
357 enet[0], enet[1], enet[2], enet[3], enet[4], enet[5]);