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5fb692ca SR |
1 | /* |
2 | * Copyright (C) 2004 PaulReynolds@lhsolutions.com | |
3 | * | |
4 | * (C) Copyright 2007 | |
5 | * Stefan Roese, DENX Software Engineering, sr@denx.de. | |
6 | * | |
7 | * See file CREDITS for list of people who contributed to this | |
8 | * project. | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or | |
11 | * modify it under the terms of the GNU General Public License as | |
12 | * published by the Free Software Foundation; either version 2 of | |
13 | * the License, or (at your option) any later version. | |
14 | * | |
15 | * This program is distributed in the hope that it will be useful, | |
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | * GNU General Public License for more details. | |
19 | * | |
20 | * You should have received a copy of the GNU General Public License | |
21 | * along with this program; if not, write to the Free Software | |
22 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
23 | * MA 02111-1307 USA | |
24 | */ | |
25 | ||
26 | #include <common.h> | |
27 | #include <asm/processor.h> | |
28 | #include <spd_sdram.h> | |
29 | #include <ppc4xx_enet.h> | |
30 | ||
31 | #ifdef CFG_INIT_SHOW_RESET_REG | |
32 | void show_reset_reg(void); | |
33 | #endif | |
34 | ||
35 | int lcd_init(void); | |
36 | ||
37 | int board_early_init_f (void) | |
38 | { | |
39 | unsigned long reg; | |
40 | volatile unsigned int *GpioOdr; | |
41 | volatile unsigned int *GpioTcr; | |
42 | volatile unsigned int *GpioOr; | |
43 | ||
44 | /*-------------------------------------------------------------------------+ | |
45 | | Initialize EBC CONFIG | |
46 | +-------------------------------------------------------------------------*/ | |
47 | mtebc(xbcfg, EBC_CFG_LE_UNLOCK | | |
48 | EBC_CFG_PTD_ENABLE | EBC_CFG_RTC_64PERCLK | | |
49 | EBC_CFG_ATC_PREVIOUS | EBC_CFG_DTC_PREVIOUS | | |
50 | EBC_CFG_CTC_PREVIOUS | EBC_CFG_EMC_DEFAULT | | |
51 | EBC_CFG_PME_DISABLE | EBC_CFG_PR_32); | |
52 | ||
53 | /*-------------------------------------------------------------------------+ | |
54 | | 64MB FLASH. Initialize bank 0 with default values. | |
55 | +-------------------------------------------------------------------------*/ | |
56 | mtebc(pb0ap, EBC_BXAP_BME_DISABLED|EBC_BXAP_TWT_ENCODE(15) | | |
57 | EBC_BXAP_BCE_DISABLE | | |
58 | EBC_BXAP_CSN_ENCODE(1) | EBC_BXAP_OEN_ENCODE(1) | | |
59 | EBC_BXAP_WBN_ENCODE(1) | EBC_BXAP_WBF_ENCODE(1) | | |
60 | EBC_BXAP_TH_ENCODE(3) | EBC_BXAP_RE_DISABLED | | |
61 | EBC_BXAP_BEM_WRITEONLY | | |
62 | EBC_BXAP_PEN_DISABLED); | |
63 | mtebc(pb0cr, EBC_BXCR_BAS_ENCODE(CFG_FLASH_BASE) | | |
64 | EBC_BXCR_BS_64MB | EBC_BXCR_BU_RW|EBC_BXCR_BW_32BIT); | |
65 | ||
66 | /*-------------------------------------------------------------------------+ | |
67 | | FPGA. Initialize bank 1 with default values. | |
68 | +-------------------------------------------------------------------------*/ | |
69 | mtebc(pb1ap, EBC_BXAP_BME_DISABLED|EBC_BXAP_TWT_ENCODE(5) | | |
70 | EBC_BXAP_BCE_DISABLE | | |
71 | EBC_BXAP_CSN_ENCODE(1) | EBC_BXAP_OEN_ENCODE(1) | | |
72 | EBC_BXAP_WBN_ENCODE(1) | EBC_BXAP_WBF_ENCODE(1) | | |
73 | EBC_BXAP_TH_ENCODE(3) | EBC_BXAP_RE_DISABLED | | |
74 | EBC_BXAP_BEM_WRITEONLY | | |
75 | EBC_BXAP_PEN_DISABLED); | |
76 | mtebc(pb1cr, EBC_BXCR_BAS_ENCODE(0x41000000) | | |
77 | EBC_BXCR_BS_1MB | EBC_BXCR_BU_RW | EBC_BXCR_BW_8BIT); | |
78 | ||
79 | /*-------------------------------------------------------------------------+ | |
80 | | LCM. Initialize bank 2 with default values. | |
81 | +-------------------------------------------------------------------------*/ | |
82 | mtebc(pb2ap, EBC_BXAP_BME_DISABLED | EBC_BXAP_TWT_ENCODE(64) | | |
83 | EBC_BXAP_BCE_DISABLE | | |
84 | EBC_BXAP_CSN_ENCODE(3) | EBC_BXAP_OEN_ENCODE(3) | | |
85 | EBC_BXAP_WBN_ENCODE(3) | EBC_BXAP_WBF_ENCODE(3) | | |
86 | EBC_BXAP_TH_ENCODE(7) | EBC_BXAP_RE_DISABLED | | |
87 | EBC_BXAP_BEM_WRITEONLY | | |
88 | EBC_BXAP_PEN_DISABLED); | |
89 | mtebc(pb2cr, EBC_BXCR_BAS_ENCODE(0x42000000) | | |
90 | EBC_BXCR_BS_1MB | EBC_BXCR_BU_RW|EBC_BXCR_BW_8BIT); | |
91 | ||
92 | /*-------------------------------------------------------------------------+ | |
93 | | TMP. Initialize bank 3 with default values. | |
94 | +-------------------------------------------------------------------------*/ | |
95 | mtebc(pb3ap, EBC_BXAP_BME_DISABLED | EBC_BXAP_TWT_ENCODE(128) | | |
96 | EBC_BXAP_BCE_DISABLE | | |
97 | EBC_BXAP_CSN_ENCODE(3) | EBC_BXAP_OEN_ENCODE(3) | | |
98 | EBC_BXAP_WBN_ENCODE(3) | EBC_BXAP_WBF_ENCODE(3) | | |
99 | EBC_BXAP_TH_ENCODE(7) | EBC_BXAP_RE_DISABLED | | |
100 | EBC_BXAP_BEM_WRITEONLY | | |
101 | EBC_BXAP_PEN_DISABLED); | |
102 | mtebc(pb3cr, EBC_BXCR_BAS_ENCODE(0x48000000) | | |
103 | EBC_BXCR_BS_64MB | EBC_BXCR_BU_RW | EBC_BXCR_BW_32BIT); | |
104 | ||
105 | /*-------------------------------------------------------------------------+ | |
106 | | Connector 4~7. Initialize bank 3~ 7 with default values. | |
107 | +-------------------------------------------------------------------------*/ | |
108 | mtebc(pb4ap,0); | |
109 | mtebc(pb4cr,0); | |
110 | mtebc(pb5ap,0); | |
111 | mtebc(pb5cr,0); | |
112 | mtebc(pb6ap,0); | |
113 | mtebc(pb6cr,0); | |
114 | mtebc(pb7ap,0); | |
115 | mtebc(pb7cr,0); | |
116 | ||
117 | /*-------------------------------------------------------------------- | |
118 | * Setup the interrupt controller polarities, triggers, etc. | |
119 | *-------------------------------------------------------------------*/ | |
120 | mtdcr (uic0sr, 0xffffffff); /* clear all */ | |
121 | mtdcr (uic0er, 0x00000000); /* disable all */ | |
122 | mtdcr (uic0cr, 0x00000009); /* SMI & UIC1 crit are critical */ | |
123 | mtdcr (uic0pr, 0xfffffe13); /* per ref-board manual */ | |
124 | mtdcr (uic0tr, 0x01c00008); /* per ref-board manual */ | |
125 | mtdcr (uic0vr, 0x00000001); /* int31 highest, base=0x000 */ | |
126 | mtdcr (uic0sr, 0xffffffff); /* clear all */ | |
127 | ||
128 | mtdcr (uic1sr, 0xffffffff); /* clear all */ | |
129 | mtdcr (uic1er, 0x00000000); /* disable all */ | |
130 | mtdcr (uic1cr, 0x00000000); /* all non-critical */ | |
131 | mtdcr (uic1pr, 0xffffe0ff); /* per ref-board manual */ | |
132 | mtdcr (uic1tr, 0x00ffc000); /* per ref-board manual */ | |
133 | mtdcr (uic1vr, 0x00000001); /* int31 highest, base=0x000 */ | |
134 | mtdcr (uic1sr, 0xffffffff); /* clear all */ | |
135 | ||
136 | mtdcr (uic2sr, 0xffffffff); /* clear all */ | |
137 | mtdcr (uic2er, 0x00000000); /* disable all */ | |
138 | mtdcr (uic2cr, 0x00000000); /* all non-critical */ | |
139 | mtdcr (uic2pr, 0xffffffff); /* per ref-board manual */ | |
140 | mtdcr (uic2tr, 0x00ff8c0f); /* per ref-board manual */ | |
141 | mtdcr (uic2vr, 0x00000001); /* int31 highest, base=0x000 */ | |
142 | mtdcr (uic2sr, 0xffffffff); /* clear all */ | |
143 | ||
144 | mtdcr (uicb0sr, 0xfc000000); /* clear all */ | |
145 | mtdcr (uicb0er, 0x00000000); /* disable all */ | |
146 | mtdcr (uicb0cr, 0x00000000); /* all non-critical */ | |
147 | mtdcr (uicb0pr, 0xfc000000); /* */ | |
148 | mtdcr (uicb0tr, 0x00000000); /* */ | |
149 | mtdcr (uicb0vr, 0x00000001); /* */ | |
150 | ||
151 | /* Enable two GPIO 10~11 and TraceA signal */ | |
152 | mfsdr(sdr_pfc0,reg); | |
153 | reg |= 0x00300000; | |
154 | mtsdr(sdr_pfc0,reg); | |
155 | ||
156 | mfsdr(sdr_pfc1,reg); | |
157 | reg |= 0x00100000; | |
158 | mtsdr(sdr_pfc1,reg); | |
159 | ||
160 | /* Set GPIO 10 and 11 as output */ | |
161 | GpioOdr = (volatile unsigned int*)(CFG_PERIPHERAL_BASE+0x718); | |
162 | GpioTcr = (volatile unsigned int*)(CFG_PERIPHERAL_BASE+0x704); | |
163 | GpioOr = (volatile unsigned int*)(CFG_PERIPHERAL_BASE+0x700); | |
164 | ||
165 | *GpioOdr &= ~(0x00300000); | |
166 | *GpioTcr |= 0x00300000; | |
a4012396 | 167 | *GpioOr |= 0x00300000; |
5fb692ca SR |
168 | |
169 | return 0; | |
170 | } | |
171 | ||
172 | int misc_init_r(void) | |
173 | { | |
174 | lcd_init(); | |
175 | ||
176 | return 0; | |
177 | } | |
178 | ||
179 | int checkboard (void) | |
180 | { | |
181 | char *s = getenv ("serial#"); | |
182 | ||
183 | printf ("Board: Taishan - AMCC PPC440GX Evaluation Board"); | |
184 | if (s != NULL) { | |
185 | puts (", serial# "); | |
186 | puts (s); | |
187 | } | |
188 | putc ('\n'); | |
189 | ||
190 | #ifdef CFG_INIT_SHOW_RESET_REG | |
191 | show_reset_reg(); | |
192 | #endif | |
193 | ||
194 | return (0); | |
195 | } | |
196 | ||
197 | #if defined(CFG_DRAM_TEST) | |
198 | int testdram (void) | |
199 | { | |
200 | uint *pstart = (uint *) 0x04000000; | |
201 | uint *pend = (uint *) 0x0fc00000; | |
202 | uint *p; | |
203 | ||
204 | for (p = pstart; p < pend; p++) | |
205 | *p = 0xaaaaaaaa; | |
206 | ||
207 | for (p = pstart; p < pend; p++) { | |
208 | if (*p != 0xaaaaaaaa) { | |
209 | printf ("SDRAM test fails at: %08x\n", (uint) p); | |
210 | return 1; | |
211 | } | |
212 | } | |
213 | ||
214 | for (p = pstart; p < pend; p++) | |
215 | *p = 0x55555555; | |
216 | ||
217 | for (p = pstart; p < pend; p++) { | |
218 | if (*p != 0x55555555) { | |
219 | printf ("SDRAM test fails at: %08x\n", (uint) p); | |
220 | return 1; | |
221 | } | |
222 | } | |
223 | return 0; | |
224 | } | |
225 | #endif | |
226 | ||
227 | /************************************************************************* | |
228 | * pci_pre_init | |
229 | * | |
230 | * This routine is called just prior to registering the hose and gives | |
231 | * the board the opportunity to check things. Returning a value of zero | |
232 | * indicates that things are bad & PCI initialization should be aborted. | |
233 | * | |
234 | * Different boards may wish to customize the pci controller structure | |
235 | * (add regions, override default access routines, etc) or perform | |
236 | * certain pre-initialization actions. | |
237 | * | |
238 | ************************************************************************/ | |
466fff1a | 239 | #if defined(CONFIG_PCI) |
5fb692ca SR |
240 | int pci_pre_init(struct pci_controller * hose ) |
241 | { | |
242 | unsigned long strap; | |
243 | ||
244 | /*--------------------------------------------------------------------------+ | |
245 | * The ocotea board is always configured as the host & requires the | |
246 | * PCI arbiter to be enabled. | |
247 | *--------------------------------------------------------------------------*/ | |
248 | mfsdr(sdr_sdstp1, strap); | |
249 | if( (strap & SDR0_SDSTP1_PAE_MASK) == 0 ){ | |
250 | printf("PCI: SDR0_STRP1[%08lX] - PCI Arbiter disabled.\n",strap); | |
251 | return 0; | |
252 | } | |
253 | ||
254 | return 1; | |
255 | } | |
466fff1a | 256 | #endif /* defined(CONFIG_PCI) */ |
5fb692ca SR |
257 | |
258 | /************************************************************************* | |
259 | * pci_target_init | |
260 | * | |
261 | * The bootstrap configuration provides default settings for the pci | |
262 | * inbound map (PIM). But the bootstrap config choices are limited and | |
263 | * may not be sufficient for a given board. | |
264 | * | |
265 | ************************************************************************/ | |
266 | #if defined(CONFIG_PCI) && defined(CFG_PCI_TARGET_INIT) | |
267 | void pci_target_init(struct pci_controller * hose ) | |
268 | { | |
269 | DECLARE_GLOBAL_DATA_PTR; | |
270 | ||
271 | /*--------------------------------------------------------------------------+ | |
272 | * Disable everything | |
273 | *--------------------------------------------------------------------------*/ | |
274 | out32r( PCIX0_PIM0SA, 0 ); /* disable */ | |
275 | out32r( PCIX0_PIM1SA, 0 ); /* disable */ | |
276 | out32r( PCIX0_PIM2SA, 0 ); /* disable */ | |
277 | out32r( PCIX0_EROMBA, 0 ); /* disable expansion rom */ | |
278 | ||
279 | /*--------------------------------------------------------------------------+ | |
280 | * Map all of SDRAM to PCI address 0x0000_0000. Note that the 440 strapping | |
281 | * options to not support sizes such as 128/256 MB. | |
282 | *--------------------------------------------------------------------------*/ | |
283 | out32r( PCIX0_PIM0LAL, CFG_SDRAM_BASE ); | |
284 | out32r( PCIX0_PIM0LAH, 0 ); | |
285 | out32r( PCIX0_PIM0SA, ~(gd->ram_size - 1) | 1 ); | |
286 | ||
287 | out32r( PCIX0_BAR0, 0 ); | |
288 | ||
289 | /*--------------------------------------------------------------------------+ | |
290 | * Program the board's subsystem id/vendor id | |
291 | *--------------------------------------------------------------------------*/ | |
292 | out16r( PCIX0_SBSYSVID, CFG_PCI_SUBSYS_VENDORID ); | |
293 | out16r( PCIX0_SBSYSID, CFG_PCI_SUBSYS_DEVICEID ); | |
294 | ||
295 | out16r( PCIX0_CMD, in16r(PCIX0_CMD) | PCI_COMMAND_MEMORY ); | |
296 | } | |
297 | #endif /* defined(CONFIG_PCI) && defined(CFG_PCI_TARGET_INIT) */ | |
298 | ||
299 | /************************************************************************* | |
300 | * is_pci_host | |
301 | * | |
302 | * This routine is called to determine if a pci scan should be | |
303 | * performed. With various hardware environments (especially cPCI and | |
304 | * PPMC) it's insufficient to depend on the state of the arbiter enable | |
305 | * bit in the strap register, or generic host/adapter assumptions. | |
306 | * | |
307 | * Rather than hard-code a bad assumption in the general 440 code, the | |
308 | * 440 pci code requires the board to decide at runtime. | |
309 | * | |
310 | * Return 0 for adapter mode, non-zero for host (monarch) mode. | |
311 | * | |
312 | * | |
313 | ************************************************************************/ | |
314 | #if defined(CONFIG_PCI) | |
315 | int is_pci_host(struct pci_controller *hose) | |
316 | { | |
317 | /* The ocotea board is always configured as host. */ | |
318 | return(1); | |
319 | } | |
320 | #endif /* defined(CONFIG_PCI) */ | |
321 | ||
322 | #ifdef CONFIG_POST | |
323 | /* | |
324 | * Returns 1 if keys pressed to start the power-on long-running tests | |
325 | * Called from board_init_f(). | |
326 | */ | |
327 | int post_hotkeys_pressed(void) | |
328 | { | |
329 | return (ctrlc()); | |
330 | } | |
331 | #endif |