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5c4fa9b4 GB |
1 | /* |
2 | * (C) Copyright 2003 | |
3 | * Wolfgang Denk, DENX Software Engineering, wd@denx.de. | |
4 | * | |
5 | * (C) Copyright 2004 | |
6 | * Mark Jonas, Freescale Semiconductor, mark.jonas@motorola.com. | |
7 | * | |
8 | * (C) Copyright 2005-2009 | |
9 | * Modified for InterControl digsyMTC MPC5200 board by | |
10 | * Frank Bodammer, GCD Hard- & Software GmbH, | |
11 | * frank.bodammer@gcd-solutions.de | |
12 | * | |
13 | * (C) Copyright 2009 | |
14 | * Grzegorz Bernacki, Semihalf, gjb@semihalf.com | |
15 | * | |
16 | * See file CREDITS for list of people who contributed to this | |
17 | * project. | |
18 | * | |
19 | * This program is free software; you can redistribute it and/or | |
20 | * modify it under the terms of the GNU General Public License as | |
21 | * published by the Free Software Foundation; either version 2 of | |
22 | * the License, or (at your option) any later version. | |
23 | * | |
24 | * This program is distributed in the hope that it will be useful, | |
25 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
26 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
27 | * GNU General Public License for more details. | |
28 | * | |
29 | * You should have received a copy of the GNU General Public License | |
30 | * along with this program; if not, write to the Free Software | |
31 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
32 | * MA 02111-1307 USA | |
33 | */ | |
34 | ||
35 | #include <common.h> | |
36 | #include <mpc5xxx.h> | |
37 | #include <net.h> | |
38 | #include <pci.h> | |
39 | #include <asm/processor.h> | |
40 | #include <asm/io.h> | |
41 | #include "eeprom.h" | |
466f0137 HS |
42 | #if defined(CONFIG_DIGSY_REV5) |
43 | #include "is45s16800a2.h" | |
44 | #include <mtd/cfi_flash.h> | |
45 | #else | |
5c4fa9b4 | 46 | #include "is42s16800a-7t.h" |
466f0137 HS |
47 | #endif |
48 | #include <libfdt.h> | |
5c4fa9b4 GB |
49 | |
50 | DECLARE_GLOBAL_DATA_PTR; | |
51 | ||
52 | extern int usb_cpu_init(void); | |
53 | ||
466f0137 HS |
54 | #if defined(CONFIG_DIGSY_REV5) |
55 | /* | |
56 | * The M29W128GH needs a specail reset command function, | |
57 | * details see the doc/README.cfi file | |
58 | */ | |
59 | void flash_cmd_reset(flash_info_t *info) | |
60 | { | |
61 | flash_write_cmd(info, 0, 0, AMD_CMD_RESET); | |
62 | } | |
63 | #endif | |
64 | ||
5c4fa9b4 GB |
65 | #ifndef CONFIG_SYS_RAMBOOT |
66 | static void sdram_start(int hi_addr) | |
67 | { | |
68 | long hi_addr_bit = hi_addr ? 0x01000000 : 0; | |
69 | long control = SDRAM_CONTROL | hi_addr_bit; | |
70 | ||
71 | /* unlock mode register */ | |
72 | out_be32((void *)MPC5XXX_SDRAM_CTRL, control | 0x80000000); | |
73 | ||
74 | /* precharge all banks */ | |
75 | out_be32((void *)MPC5XXX_SDRAM_CTRL, control | 0x80000002); | |
76 | ||
77 | /* auto refresh */ | |
78 | out_be32((void *)MPC5XXX_SDRAM_CTRL, control | 0x80000004); | |
79 | ||
80 | /* set mode register */ | |
81 | out_be32((void *)MPC5XXX_SDRAM_MODE, SDRAM_MODE); | |
82 | ||
83 | /* normal operation */ | |
84 | out_be32((void *)MPC5XXX_SDRAM_CTRL, control); | |
85 | } | |
86 | #endif | |
87 | ||
88 | /* | |
89 | * ATTENTION: Although partially referenced initdram does NOT make real use | |
90 | * use of CONFIG_SYS_SDRAM_BASE. The code does not work if | |
91 | * CONFIG_SYS_SDRAM_BASE is something else than 0x00000000. | |
92 | */ | |
93 | ||
94 | phys_size_t initdram(int board_type) | |
95 | { | |
96 | ulong dramsize = 0; | |
97 | ulong dramsize2 = 0; | |
98 | uint svr, pvr; | |
99 | #ifndef CONFIG_SYS_RAMBOOT | |
100 | ulong test1, test2; | |
101 | ||
102 | /* setup SDRAM chip selects */ | |
103 | out_be32((void *)MPC5XXX_SDRAM_CS0CFG, 0x0000001C); /* 512MB at 0x0 */ | |
104 | out_be32((void *)MPC5XXX_SDRAM_CS1CFG, 0x80000000); /* disabled */ | |
105 | ||
106 | /* setup config registers */ | |
107 | out_be32((void *)MPC5XXX_SDRAM_CONFIG1, SDRAM_CONFIG1); | |
108 | out_be32((void *)MPC5XXX_SDRAM_CONFIG2, SDRAM_CONFIG2); | |
109 | ||
110 | /* find RAM size using SDRAM CS0 only */ | |
111 | sdram_start(0); | |
112 | test1 = get_ram_size((long *)CONFIG_SYS_SDRAM_BASE, 0x08000000); | |
113 | sdram_start(1); | |
114 | test2 = get_ram_size((long *)CONFIG_SYS_SDRAM_BASE, 0x08000000); | |
115 | if (test1 > test2) { | |
116 | sdram_start(0); | |
117 | dramsize = test1; | |
118 | } else { | |
119 | dramsize = test2; | |
120 | } | |
121 | ||
122 | /* memory smaller than 1MB is impossible */ | |
123 | if (dramsize < (1 << 20)) | |
124 | dramsize = 0; | |
125 | ||
126 | /* set SDRAM CS0 size according to the amount of RAM found */ | |
127 | if (dramsize > 0) { | |
128 | out_be32((void *)MPC5XXX_SDRAM_CS0CFG, | |
129 | (0x13 + __builtin_ffs(dramsize >> 20) - 1)); | |
130 | } else { | |
131 | out_be32((void *)MPC5XXX_SDRAM_CS0CFG, 0); /* disabled */ | |
132 | } | |
133 | ||
134 | /* let SDRAM CS1 start right after CS0 */ | |
135 | out_be32((void *)MPC5XXX_SDRAM_CS1CFG, dramsize + 0x0000001C); | |
136 | ||
137 | /* find RAM size using SDRAM CS1 only */ | |
138 | test1 = get_ram_size((long *)(CONFIG_SYS_SDRAM_BASE + dramsize), | |
139 | 0x08000000); | |
140 | dramsize2 = test1; | |
141 | ||
142 | /* memory smaller than 1MB is impossible */ | |
143 | if (dramsize2 < (1 << 20)) | |
144 | dramsize2 = 0; | |
145 | ||
146 | /* set SDRAM CS1 size according to the amount of RAM found */ | |
147 | if (dramsize2 > 0) { | |
148 | out_be32((void *)MPC5XXX_SDRAM_CS1CFG, (dramsize | | |
149 | (0x13 + __builtin_ffs(dramsize2 >> 20) - 1))); | |
150 | } else { | |
151 | out_be32((void *)MPC5XXX_SDRAM_CS1CFG, dramsize); /* disabled */ | |
152 | } | |
153 | ||
154 | #else /* CONFIG_SYS_RAMBOOT */ | |
155 | ||
156 | /* retrieve size of memory connected to SDRAM CS0 */ | |
157 | dramsize = in_be32((void *)MPC5XXX_SDRAM_CS0CFG) & 0xFF; | |
158 | if (dramsize >= 0x13) | |
159 | dramsize = (1 << (dramsize - 0x13)) << 20; | |
160 | else | |
161 | dramsize = 0; | |
162 | ||
163 | /* retrieve size of memory connected to SDRAM CS1 */ | |
164 | dramsize2 = in_be32((void *)MPC5XXX_SDRAM_CS1CFG) & 0xFF; | |
165 | if (dramsize2 >= 0x13) | |
166 | dramsize2 = (1 << (dramsize2 - 0x13)) << 20; | |
167 | else | |
168 | dramsize2 = 0; | |
169 | ||
170 | #endif /* CONFIG_SYS_RAMBOOT */ | |
171 | ||
172 | /* | |
173 | * On MPC5200B we need to set the special configuration delay in the | |
174 | * DDR controller. Please refer to Freescale's AN3221 "MPC5200B SDRAM | |
175 | * Initialization and Configuration", 3.3.1 SDelay--MBAR + 0x0190: | |
176 | * | |
177 | * "The SDelay should be written to a value of 0x00000004. It is | |
178 | * required to account for changes caused by normal wafer processing | |
179 | * parameters." | |
180 | */ | |
181 | svr = get_svr(); | |
182 | pvr = get_pvr(); | |
183 | if ((SVR_MJREV(svr) >= 2) && | |
184 | (PVR_MAJ(pvr) == 1) && (PVR_MIN(pvr) == 4)) | |
185 | out_be32((void *)MPC5XXX_SDRAM_SDELAY, 0x04); | |
186 | ||
187 | return dramsize + dramsize2; | |
188 | } | |
189 | ||
190 | int checkboard(void) | |
191 | { | |
192 | char *s = getenv("serial#"); | |
193 | ||
194 | puts ("Board: InterControl digsyMTC"); | |
466f0137 HS |
195 | #if defined(CONFIG_DIGSY_REV5) |
196 | puts (" rev5"); | |
197 | #endif | |
5c4fa9b4 GB |
198 | if (s != NULL) { |
199 | puts(", "); | |
200 | puts(s); | |
201 | } | |
202 | putc('\n'); | |
203 | ||
204 | return 0; | |
205 | } | |
206 | ||
207 | int board_early_init_r(void) | |
208 | { | |
f1f66edf GB |
209 | #ifdef CONFIG_MPC52XX_SPI |
210 | struct mpc5xxx_gpt *gpt = (struct mpc5xxx_gpt*)MPC5XXX_GPT; | |
211 | #endif | |
5c4fa9b4 GB |
212 | /* |
213 | * Now, when we are in RAM, enable flash write access for detection | |
214 | * process. Note that CS_BOOT cannot be cleared when executing in | |
215 | * flash. | |
216 | */ | |
217 | /* disable CS_BOOT */ | |
218 | clrbits_be32((void *)MPC5XXX_ADDECR, (1 << 25)); | |
219 | /* enable CS1 */ | |
220 | setbits_be32((void *)MPC5XXX_ADDECR, (1 << 17)); | |
221 | /* enable CS0 */ | |
222 | setbits_be32((void *)MPC5XXX_ADDECR, (1 << 16)); | |
223 | ||
224 | #if defined(CONFIG_USB_OHCI_NEW) && defined(CONFIG_SYS_USB_OHCI_CPU_INIT) | |
225 | /* Low level USB init, required for proper kernel operation */ | |
226 | usb_cpu_init(); | |
227 | #endif | |
f1f66edf GB |
228 | #ifdef CONFIG_MPC52XX_SPI |
229 | /* GPT 6 Output Enable */ | |
230 | out_be32(&gpt[6].emsr, 0x00000034); | |
231 | /* GPT 7 Output Enable */ | |
232 | out_be32(&gpt[7].emsr, 0x00000034); | |
233 | #endif | |
234 | ||
5c4fa9b4 GB |
235 | return (0); |
236 | } | |
237 | ||
238 | void board_get_enetaddr (uchar * enet) | |
239 | { | |
240 | ushort read = 0; | |
241 | ushort addr_of_eth_addr = 0; | |
242 | ushort len_sys = 0; | |
243 | ushort len_sys_cfg = 0; | |
244 | ||
245 | /* check identification word */ | |
246 | eeprom_read(EEPROM_ADDR, EEPROM_ADDR_IDENT, (uchar *)&read, 2); | |
247 | if (read != EEPROM_IDENT) | |
248 | return; | |
249 | ||
250 | /* calculate offset of config area */ | |
251 | eeprom_read(EEPROM_ADDR, EEPROM_ADDR_LEN_SYS, (uchar *)&len_sys, 2); | |
252 | eeprom_read(EEPROM_ADDR, EEPROM_ADDR_LEN_SYSCFG, | |
253 | (uchar *)&len_sys_cfg, 2); | |
254 | addr_of_eth_addr = (len_sys + len_sys_cfg + EEPROM_ADDR_ETHADDR) << 1; | |
255 | if (addr_of_eth_addr >= EEPROM_LEN) | |
256 | return; | |
257 | ||
258 | eeprom_read(EEPROM_ADDR, addr_of_eth_addr, enet, 6); | |
259 | } | |
260 | ||
261 | int misc_init_r(void) | |
262 | { | |
263 | uchar enetaddr[6]; | |
264 | ||
265 | if (!eth_getenv_enetaddr("ethaddr", enetaddr)) { | |
266 | board_get_enetaddr(enetaddr); | |
267 | eth_setenv_enetaddr("ethaddr", enetaddr); | |
268 | } | |
269 | ||
270 | return 0; | |
271 | } | |
272 | ||
273 | #ifdef CONFIG_PCI | |
274 | static struct pci_controller hose; | |
275 | ||
276 | extern void pci_mpc5xxx_init(struct pci_controller *); | |
277 | ||
278 | void pci_init_board(void) | |
279 | { | |
280 | pci_mpc5xxx_init(&hose); | |
281 | } | |
282 | #endif | |
283 | ||
284 | #ifdef CONFIG_CMD_IDE | |
285 | ||
286 | #ifdef CONFIG_IDE_RESET | |
287 | ||
288 | void init_ide_reset(void) | |
289 | { | |
290 | debug ("init_ide_reset\n"); | |
291 | ||
292 | /* set gpio output value to 1 */ | |
293 | setbits_be32((void *)MPC5XXX_WU_GPIO_DATA_O, (1 << 25)); | |
294 | /* open drain output */ | |
295 | setbits_be32((void *)MPC5XXX_WU_GPIO_ODE, (1 << 25)); | |
296 | /* direction output */ | |
297 | setbits_be32((void *)MPC5XXX_WU_GPIO_DIR, (1 << 25)); | |
298 | /* enable gpio */ | |
299 | setbits_be32((void *)MPC5XXX_WU_GPIO_ENABLE, (1 << 25)); | |
300 | ||
301 | } | |
302 | ||
303 | void ide_set_reset(int idereset) | |
304 | { | |
305 | debug ("ide_reset(%d)\n", idereset); | |
306 | ||
307 | /* set gpio output value to 0 */ | |
308 | clrbits_be32((void *)MPC5XXX_WU_GPIO_DATA_O, (1 << 25)); | |
309 | /* open drain output */ | |
310 | setbits_be32((void *)MPC5XXX_WU_GPIO_ODE, (1 << 25)); | |
311 | /* direction output */ | |
312 | setbits_be32((void *)MPC5XXX_WU_GPIO_DIR, (1 << 25)); | |
313 | /* enable gpio */ | |
314 | setbits_be32((void *)MPC5XXX_WU_GPIO_ENABLE, (1 << 25)); | |
315 | ||
316 | udelay(10000); | |
317 | ||
318 | /* set gpio output value to 1 */ | |
319 | setbits_be32((void *)MPC5XXX_WU_GPIO_DATA_O, (1 << 25)); | |
320 | /* open drain output */ | |
321 | setbits_be32((void *)MPC5XXX_WU_GPIO_ODE, (1 << 25)); | |
322 | /* direction output */ | |
323 | setbits_be32((void *)MPC5XXX_WU_GPIO_DIR, (1 << 25)); | |
324 | /* enable gpio */ | |
325 | setbits_be32((void *)MPC5XXX_WU_GPIO_ENABLE, (1 << 25)); | |
326 | } | |
327 | #endif /* CONFIG_IDE_RESET */ | |
466f0137 | 328 | #endif /* CONFIG_CMD_IDE */ |
5c4fa9b4 GB |
329 | |
330 | #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) | |
466f0137 HS |
331 | static void ft_delete_node(void *fdt, const char *compat) |
332 | { | |
333 | int off = -1; | |
334 | int ret; | |
335 | ||
336 | off = fdt_node_offset_by_compatible(fdt, -1, compat); | |
337 | if (off < 0) { | |
338 | printf("Could not find %s node.\n", compat); | |
339 | return; | |
340 | } | |
341 | ||
342 | ret = fdt_del_node(fdt, off); | |
343 | if (ret < 0) | |
344 | printf("Could not delete %s node.\n", compat); | |
345 | } | |
346 | #if defined(CONFIG_SYS_UPDATE_FLASH_SIZE) | |
347 | static void ft_adapt_flash_base(void *blob) | |
348 | { | |
349 | flash_info_t *dev = &flash_info[0]; | |
350 | int off; | |
351 | struct fdt_property *prop; | |
352 | int len; | |
353 | u32 *reg, *reg2; | |
354 | ||
355 | off = fdt_node_offset_by_compatible(blob, -1, "fsl,mpc5200b-lpb"); | |
356 | if (off < 0) { | |
357 | printf("Could not find fsl,mpc5200b-lpb node.\n"); | |
358 | return; | |
359 | } | |
360 | ||
361 | /* found compatible property */ | |
362 | prop = fdt_get_property_w(blob, off, "ranges", &len); | |
363 | if (prop) { | |
364 | reg = reg2 = (u32 *)&prop->data[0]; | |
365 | ||
366 | reg[2] = dev->start[0]; | |
367 | reg[3] = dev->size; | |
368 | fdt_setprop(blob, off, "ranges", reg2, len); | |
369 | } else | |
370 | printf("Could not find ranges\n"); | |
371 | } | |
372 | ||
373 | extern ulong flash_get_size (phys_addr_t base, int banknum); | |
374 | ||
375 | /* Update the Flash Baseaddr settings */ | |
376 | int update_flash_size (int flash_size) | |
377 | { | |
378 | volatile struct mpc5xxx_mmap_ctl *mm = | |
379 | (struct mpc5xxx_mmap_ctl *) CONFIG_SYS_MBAR; | |
380 | flash_info_t *dev; | |
381 | int i; | |
382 | int size = 0; | |
383 | unsigned long base = 0x0; | |
384 | u32 *cs_reg = (u32 *)&mm->cs0_start; | |
385 | ||
386 | for (i = 0; i < 2; i++) { | |
387 | dev = &flash_info[i]; | |
388 | ||
389 | if (dev->size) { | |
390 | /* calculate new base addr for this chipselect */ | |
391 | base -= dev->size; | |
392 | out_be32(cs_reg, START_REG(base)); | |
393 | cs_reg++; | |
394 | out_be32(cs_reg, STOP_REG(base, dev->size)); | |
395 | cs_reg++; | |
396 | /* recalculate the sectoraddr in the cfi driver */ | |
397 | size += flash_get_size(base, i); | |
398 | } | |
399 | } | |
400 | gd->bd->bi_flashstart = base; | |
401 | return 0; | |
402 | } | |
403 | #endif /* defined(CONFIG_SYS_UPDATE_FLASH_SIZE) */ | |
404 | ||
5c4fa9b4 GB |
405 | void ft_board_setup(void *blob, bd_t *bd) |
406 | { | |
407 | ft_cpu_setup(blob, bd); | |
466f0137 HS |
408 | /* |
409 | * There are 2 RTC nodes in the DTS, so remove | |
410 | * the unneeded node here. | |
411 | */ | |
412 | #if defined(CONFIG_DIGSY_REV5) | |
413 | ft_delete_node(blob, "dallas,ds1339"); | |
414 | #else | |
415 | ft_delete_node(blob, "mc,rv3029c2"); | |
416 | #endif | |
417 | #if defined(CONFIG_SYS_UPDATE_FLASH_SIZE) | |
418 | ft_adapt_flash_base(blob); | |
419 | #endif | |
5c4fa9b4 GB |
420 | } |
421 | #endif /* defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) */ |