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rename CFG_ macros to CONFIG_SYS
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1 /*
2 * Copyright (C) 2003 Travis B. Sawyer <travis.sawyer@sandburst.com>
3 *
4 * See file CREDITS for list of people who contributed to this
5 * project.
6 *
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.
11 *
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.
16 *
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,
20 * MA 02111-1307 USA
21 */
22
23
24 #include <common.h>
25 #include <asm/processor.h>
26 #include <spd_sdram.h>
27 #include <i2c.h>
28
29 DECLARE_GLOBAL_DATA_PTR;
30
31 #define BOOT_SMALL_FLASH 32 /* 00100000 */
32 #define FLASH_ONBD_N 2 /* 00000010 */
33 #define FLASH_SRAM_SEL 1 /* 00000001 */
34
35 long int fixed_sdram (void);
36
37 int board_early_init_f(void)
38 {
39 unsigned long sdrreg;
40 /* TBS: Setup the GPIO access for the user LEDs */
41 mfsdr(sdr_pfc0, sdrreg);
42 mtsdr(sdr_pfc0, (sdrreg & ~0x00000100) | 0x00000E00);
43 out32(CONFIG_SYS_GPIO_BASE + 0x018, (USR_LED0 | USR_LED1 | USR_LED2 | USR_LED3));
44 LED0_OFF();
45 LED1_OFF();
46 LED2_OFF();
47 LED3_OFF();
48
49 /*--------------------------------------------------------------------
50 * Setup the external bus controller/chip selects
51 *-------------------------------------------------------------------*/
52
53 /* set the bus controller */
54 mtebc (pb0ap, 0x04055200); /* FLASH/SRAM */
55 mtebc (pb0cr, 0xfff18000); /* BAS=0xfff 1MB R/W 8-bit */
56 mtebc (pb1ap, 0x04055200); /* FLASH/SRAM */
57 mtebc (pb1cr, 0xfe098000); /* BAS=0xff8 16MB R/W 8-bit */
58
59 /*--------------------------------------------------------------------
60 * Setup the interrupt controller polarities, triggers, etc.
61 *-------------------------------------------------------------------*/
62 /*
63 * Because of the interrupt handling rework to handle 440GX interrupts
64 * with the common code, we needed to change names of the UIC registers.
65 * Here the new relationship:
66 *
67 * U-Boot name 440GX name
68 * -----------------------
69 * UIC0 UICB0
70 * UIC1 UIC0
71 * UIC2 UIC1
72 * UIC3 UIC2
73 */
74 mtdcr (uic1sr, 0xffffffff); /* clear all */
75 mtdcr (uic1er, 0x00000000); /* disable all */
76 mtdcr (uic1cr, 0x00000003); /* SMI & UIC1 crit are critical */
77 mtdcr (uic1pr, 0xfffffe00); /* per ref-board manual */
78 mtdcr (uic1tr, 0x01c00000); /* per ref-board manual */
79 mtdcr (uic1vr, 0x00000001); /* int31 highest, base=0x000 */
80 mtdcr (uic1sr, 0xffffffff); /* clear all */
81
82 mtdcr (uic2sr, 0xffffffff); /* clear all */
83 mtdcr (uic2er, 0x00000000); /* disable all */
84 mtdcr (uic2cr, 0x00000000); /* all non-critical */
85 mtdcr (uic2pr, 0xffffc0ff); /* per ref-board manual */
86 mtdcr (uic2tr, 0x00ff8000); /* per ref-board manual */
87 mtdcr (uic2vr, 0x00000001); /* int31 highest, base=0x000 */
88 mtdcr (uic2sr, 0xffffffff); /* clear all */
89
90 mtdcr (uic3sr, 0xffffffff); /* clear all */
91 mtdcr (uic3er, 0x00000000); /* disable all */
92 mtdcr (uic3cr, 0x00000000); /* all non-critical */
93 mtdcr (uic3pr, 0xffffffff); /* per ref-board manual */
94 mtdcr (uic3tr, 0x00ff8c0f); /* per ref-board manual */
95 mtdcr (uic3vr, 0x00000001); /* int31 highest, base=0x000 */
96 mtdcr (uic3sr, 0xffffffff); /* clear all */
97
98 mtdcr (uic0sr, 0xfc000000); /* clear all */
99 mtdcr (uic0er, 0x00000000); /* disable all */
100 mtdcr (uic0cr, 0x00000000); /* all non-critical */
101 mtdcr (uic0pr, 0xfc000000); /* */
102 mtdcr (uic0tr, 0x00000000); /* */
103 mtdcr (uic0vr, 0x00000001); /* */
104
105 LED0_ON();
106
107
108 return 0;
109 }
110
111 int checkboard (void)
112 {
113 printf ("Board: XES XPedite1000 440GX\n");
114
115 return (0);
116 }
117
118
119 phys_size_t initdram (int board_type)
120 {
121 long dram_size = 0;
122
123 #if defined(CONFIG_SPD_EEPROM)
124 dram_size = spd_sdram ();
125 #else
126 dram_size = fixed_sdram ();
127 #endif
128 return dram_size;
129 }
130
131
132 #if defined(CONFIG_SYS_DRAM_TEST)
133 int testdram (void)
134 {
135 uint *pstart = (uint *) 0x00000000;
136 uint *pend = (uint *) 0x08000000;
137 uint *p;
138
139 for (p = pstart; p < pend; p++)
140 *p = 0xaaaaaaaa;
141
142 for (p = pstart; p < pend; p++) {
143 if (*p != 0xaaaaaaaa) {
144 printf ("SDRAM test fails at: %08x\n", (uint) p);
145 return 1;
146 }
147 }
148
149 for (p = pstart; p < pend; p++)
150 *p = 0x55555555;
151
152 for (p = pstart; p < pend; p++) {
153 if (*p != 0x55555555) {
154 printf ("SDRAM test fails at: %08x\n", (uint) p);
155 return 1;
156 }
157 }
158 return 0;
159 }
160 #endif
161
162 #if !defined(CONFIG_SPD_EEPROM)
163 /*************************************************************************
164 * fixed sdram init -- doesn't use serial presence detect.
165 *
166 * Assumes: 128 MB, non-ECC, non-registered
167 * PLB @ 133 MHz
168 *
169 ************************************************************************/
170 long int fixed_sdram (void)
171 {
172 uint reg;
173
174 /*--------------------------------------------------------------------
175 * Setup some default
176 *------------------------------------------------------------------*/
177 mtsdram (mem_uabba, 0x00000000); /* ubba=0 (default) */
178 mtsdram (mem_slio, 0x00000000); /* rdre=0 wrre=0 rarw=0 */
179 mtsdram (mem_devopt, 0x00000000); /* dll=0 ds=0 (normal) */
180 mtsdram (mem_wddctr, 0x00000000); /* wrcp=0 dcd=0 */
181 mtsdram (mem_clktr, 0x40000000); /* clkp=1 (90 deg wr) dcdt=0 */
182
183 /*--------------------------------------------------------------------
184 * Setup for board-specific specific mem
185 *------------------------------------------------------------------*/
186 /*
187 * Following for CAS Latency = 2.5 @ 133 MHz PLB
188 */
189 mtsdram (mem_b0cr, 0x000a4001); /* SDBA=0x000 128MB, Mode 3, enabled */
190 mtsdram (mem_tr0, 0x410a4012); /* WR=2 WD=1 CL=2.5 PA=3 CP=4 LD=2 */
191 /* RA=10 RD=3 */
192 mtsdram (mem_tr1, 0x8080082f); /* SS=T2 SL=STAGE 3 CD=1 CT=0x02f */
193 mtsdram (mem_rtr, 0x08200000); /* Rate 15.625 ns @ 133 MHz PLB */
194 mtsdram (mem_cfg1, 0x00000000); /* Self-refresh exit, disable PM */
195 udelay (400); /* Delay 200 usecs (min) */
196
197 /*--------------------------------------------------------------------
198 * Enable the controller, then wait for DCEN to complete
199 *------------------------------------------------------------------*/
200 mtsdram (mem_cfg0, 0x86000000); /* DCEN=1, PMUD=1, 64-bit */
201 for (;;) {
202 mfsdram (mem_mcsts, reg);
203 if (reg & 0x80000000)
204 break;
205 }
206
207 return (128 * 1024 * 1024); /* 128 MB */
208 }
209 #endif /* !defined(CONFIG_SPD_EEPROM) */
210
211
212 /*************************************************************************
213 * pci_pre_init
214 *
215 * This routine is called just prior to registering the hose and gives
216 * the board the opportunity to check things. Returning a value of zero
217 * indicates that things are bad & PCI initialization should be aborted.
218 *
219 * Different boards may wish to customize the pci controller structure
220 * (add regions, override default access routines, etc) or perform
221 * certain pre-initialization actions.
222 *
223 ************************************************************************/
224 #if defined(CONFIG_PCI)
225 int pci_pre_init(struct pci_controller * hose )
226 {
227 unsigned long strap;
228 /* See if we're supposed to setup the pci */
229 mfsdr(sdr_sdstp1, strap);
230 if ((strap & 0x00010000) == 0) {
231 return (0);
232 }
233
234 #if defined(CONFIG_SYS_PCI_FORCE_PCI_CONV)
235 /* Setup System Device Register PCIX0_XCR */
236 mfsdr(sdr_xcr, strap);
237 strap &= 0x0f000000;
238 mtsdr(sdr_xcr, strap);
239 #endif
240 return 1;
241 }
242 #endif /* defined(CONFIG_PCI) */
243
244 /*************************************************************************
245 * pci_target_init
246 *
247 * The bootstrap configuration provides default settings for the pci
248 * inbound map (PIM). But the bootstrap config choices are limited and
249 * may not be sufficient for a given board.
250 *
251 ************************************************************************/
252 #if defined(CONFIG_PCI) && defined(CONFIG_SYS_PCI_TARGET_INIT)
253 void pci_target_init(struct pci_controller * hose )
254 {
255 /*--------------------------------------------------------------------------+
256 * Disable everything
257 *--------------------------------------------------------------------------*/
258 out32r( PCIX0_PIM0SA, 0 ); /* disable */
259 out32r( PCIX0_PIM1SA, 0 ); /* disable */
260 out32r( PCIX0_PIM2SA, 0 ); /* disable */
261 out32r( PCIX0_EROMBA, 0 ); /* disable expansion rom */
262
263 /*--------------------------------------------------------------------------+
264 * Map all of SDRAM to PCI address 0x0000_0000. Note that the 440 strapping
265 * options to not support sizes such as 128/256 MB.
266 *--------------------------------------------------------------------------*/
267 out32r( PCIX0_PIM0LAL, CONFIG_SYS_SDRAM_BASE );
268 out32r( PCIX0_PIM0LAH, 0 );
269 out32r( PCIX0_PIM0SA, ~(gd->ram_size - 1) | 1 );
270
271 out32r( PCIX0_BAR0, 0 );
272
273 /*--------------------------------------------------------------------------+
274 * Program the board's subsystem id/vendor id
275 *--------------------------------------------------------------------------*/
276 out16r( PCIX0_SBSYSVID, CONFIG_SYS_PCI_SUBSYS_VENDORID );
277 out16r( PCIX0_SBSYSID, CONFIG_SYS_PCI_SUBSYS_DEVICEID );
278
279 out16r( PCIX0_CMD, in16r(PCIX0_CMD) | PCI_COMMAND_MEMORY );
280 }
281 #endif /* defined(CONFIG_PCI) && defined(CONFIG_SYS_PCI_TARGET_INIT) */
282
283
284 /*************************************************************************
285 * is_pci_host
286 *
287 * This routine is called to determine if a pci scan should be
288 * performed. With various hardware environments (especially cPCI and
289 * PPMC) it's insufficient to depend on the state of the arbiter enable
290 * bit in the strap register, or generic host/adapter assumptions.
291 *
292 * Rather than hard-code a bad assumption in the general 440 code, the
293 * 440 pci code requires the board to decide at runtime.
294 *
295 * Return 0 for adapter mode, non-zero for host (monarch) mode.
296 *
297 *
298 ************************************************************************/
299 #if defined(CONFIG_PCI)
300 int is_pci_host(struct pci_controller *hose)
301 {
302 return ((in32(CONFIG_SYS_GPIO_BASE + 0x1C) & 0x00000800) == 0);
303 }
304 #endif /* defined(CONFIG_PCI) */
305
306 #ifdef CONFIG_POST
307 /*
308 * Returns 1 if keys pressed to start the power-on long-running tests
309 * Called from board_init_f().
310 */
311 int post_hotkeys_pressed(void)
312 {
313
314 return (ctrlc());
315 }
316
317 void post_word_store (ulong a)
318 {
319 volatile ulong *save_addr =
320 (volatile ulong *)(CONFIG_SYS_POST_WORD_ADDR);
321
322 *save_addr = a;
323 }
324
325 ulong post_word_load (void)
326 {
327 volatile ulong *save_addr =
328 (volatile ulong *)(CONFIG_SYS_POST_WORD_ADDR);
329
330 return *save_addr;
331 }
332 #endif
333
334 /*-----------------------------------------------------------------------------
335 * board_get_enetaddr -- Read the MAC Addresses in the I2C EEPROM
336 *-----------------------------------------------------------------------------
337 */
338 static int enetaddr_num = 0;
339 void board_get_enetaddr (uchar * enet)
340 {
341 int i;
342 unsigned char buff[0x100], *cp;
343
344 /* Initialize I2C */
345 i2c_init (CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
346
347 /* Read 256 bytes in EEPROM */
348 i2c_read (0x50, 0, 1, buff, 0x100);
349
350 if (enetaddr_num == 0) {
351 cp = &buff[0xF4];
352 enetaddr_num = 1;
353 }
354 else
355 cp = &buff[0xFA];
356
357 for (i = 0; i < 6; i++,cp++)
358 enet[i] = *cp;
359
360 printf ("MAC address = %02x:%02x:%02x:%02x:%02x:%02x\n",
361 enet[0], enet[1], enet[2], enet[3], enet[4], enet[5]);
362
363 }