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git.ipfire.org Git - people/ms/u-boot.git/blob - board/pm826/pm826.c
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 * See file CREDITS for list of people who contributed to this
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
31 * I/O Port configuration table
33 * if conf is 1, then that port pin will be configured at boot time
34 * according to the five values podr/pdir/ppar/psor/pdat for that entry
37 const iop_conf_t iop_conf_tab
[4][32] = {
39 /* Port A configuration */
40 { /* conf ppar psor pdir podr pdat */
41 /* PA31 */ { 1, 1, 1, 0, 0, 0 }, /* FCC1 COL */
42 /* PA30 */ { 1, 1, 1, 0, 0, 0 }, /* FCC1 CRS */
43 /* PA29 */ { 1, 1, 1, 1, 0, 0 }, /* FCC1 TXER */
44 /* PA28 */ { 1, 1, 1, 1, 0, 0 }, /* FCC1 TXEN */
45 /* PA27 */ { 1, 1, 1, 0, 0, 0 }, /* FCC1 RXDV */
46 /* PA26 */ { 1, 1, 1, 0, 0, 0 }, /* FCC1 RXER */
47 /* PA25 */ { 0, 0, 0, 1, 0, 0 }, /* PA25 */
48 /* PA24 */ { 0, 0, 0, 1, 0, 0 }, /* PA24 */
49 /* PA23 */ { 0, 0, 0, 1, 0, 0 }, /* PA23 */
50 /* PA22 */ { 0, 0, 0, 1, 0, 0 }, /* PA22 */
51 /* PA21 */ { 1, 1, 0, 1, 0, 0 }, /* FCC1 TXD3 */
52 /* PA20 */ { 1, 1, 0, 1, 0, 0 }, /* FCC1 TXD2 */
53 /* PA19 */ { 1, 1, 0, 1, 0, 0 }, /* FCC1 TXD1 */
54 /* PA18 */ { 1, 1, 0, 1, 0, 0 }, /* FCC1 TXD0 */
55 /* PA17 */ { 1, 1, 0, 0, 0, 0 }, /* FCC1 RXD0 */
56 /* PA16 */ { 1, 1, 0, 0, 0, 0 }, /* FCC1 RXD1*/
57 /* PA15 */ { 1, 1, 0, 0, 0, 0 }, /* FCC1 RXD2 */
58 /* PA14 */ { 1, 1, 0, 0, 0, 0 }, /* FCC1 RXD3 */
59 /* PA13 */ { 0, 0, 0, 1, 0, 0 }, /* PA13 */
60 /* PA12 */ { 0, 0, 0, 1, 0, 0 }, /* PA12 */
61 /* PA11 */ { 0, 0, 0, 1, 0, 0 }, /* PA11 */
62 /* PA10 */ { 0, 0, 0, 1, 0, 0 }, /* PA10 */
63 /* PA9 */ { 0, 1, 0, 1, 0, 0 }, /* PA9 */
64 /* PA8 */ { 0, 1, 0, 0, 0, 0 }, /* PA8 */
65 /* PA7 */ { 0, 0, 0, 1, 0, 0 }, /* PA7 */
66 /* PA6 */ { 0, 0, 0, 1, 0, 0 }, /* PA6 */
67 /* PA5 */ { 0, 0, 0, 1, 0, 0 }, /* PA5 */
68 /* PA4 */ { 0, 0, 0, 1, 0, 0 }, /* PA4 */
69 /* PA3 */ { 0, 0, 0, 1, 0, 0 }, /* PA3 */
70 /* PA2 */ { 0, 0, 0, 1, 0, 0 }, /* PA2 */
71 /* PA1 */ { 0, 0, 0, 1, 0, 0 }, /* PA1 */
72 /* PA0 */ { 0, 0, 0, 1, 0, 0 } /* PA0 */
75 /* Port B configuration */
76 { /* conf ppar psor pdir podr pdat */
77 /* PB31 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 TX_ER */
78 /* PB30 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 RX_DV */
79 /* PB29 */ { 1, 1, 1, 1, 0, 0 }, /* FCC2 TX_EN */
80 #if defined(CONFIG_ETHER_ON_SCC) && (CONFIG_ETHER_INDEX == 1)
81 #ifdef CONFIG_ETHER_ON_FCC2
82 #error "SCC1 conflicts with FCC2"
84 /* PB28 */ { 1, 1, 1, 1, 0, 0 }, /* SCC1 TXD */
86 /* PB28 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 RX_ER */
88 /* PB27 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 COL */
89 /* PB26 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 CRS */
90 /* PB25 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 TxD[3] */
91 /* PB24 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 TxD[2] */
92 /* PB23 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 TxD[1] */
93 /* PB22 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 TxD[0] */
94 /* PB21 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 RxD[0] */
95 /* PB20 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 RxD[1] */
96 /* PB19 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 RxD[2] */
97 /* PB18 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 RxD[3] */
98 /* PB17 */ { 0, 0, 0, 0, 0, 0 }, /* PB17 */
99 /* PB16 */ { 0, 0, 0, 0, 0, 0 }, /* PB16 */
100 /* PB15 */ { 1, 1, 0, 0, 0, 0 }, /* SCC2 RXD */
101 /* PB14 */ { 1, 1, 0, 0, 0, 0 }, /* SCC3 RXD */
102 /* PB13 */ { 0, 0, 0, 0, 0, 0 }, /* PB13 */
103 /* PB12 */ { 0, 0, 0, 0, 0, 0 }, /* PB12 */
104 /* PB11 */ { 0, 0, 0, 0, 0, 0 }, /* PB11 */
105 /* PB10 */ { 0, 0, 0, 0, 0, 0 }, /* PB10 */
106 /* PB9 */ { 0, 0, 0, 0, 0, 0 }, /* PB9 */
107 /* PB8 */ { 1, 1, 1, 1, 0, 0 }, /* SCC3 TXD */
108 /* PB7 */ { 0, 0, 0, 0, 0, 0 }, /* PB7 */
109 /* PB6 */ { 0, 0, 0, 0, 0, 0 }, /* PB6 */
110 /* PB5 */ { 0, 0, 0, 0, 0, 0 }, /* PB5 */
111 /* PB4 */ { 0, 0, 0, 0, 0, 0 }, /* PB4 */
112 /* PB3 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
113 /* PB2 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
114 /* PB1 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
115 /* PB0 */ { 0, 0, 0, 0, 0, 0 } /* pin doesn't exist */
119 { /* conf ppar psor pdir podr pdat */
120 /* PC31 */ { 0, 0, 0, 1, 0, 0 }, /* PC31 */
121 /* PC30 */ { 0, 0, 0, 1, 0, 0 }, /* PC30 */
122 /* PC29 */ { 0, 1, 1, 0, 0, 0 }, /* SCC1 CTS */
123 /* PC28 */ { 0, 0, 0, 1, 0, 0 }, /* SCC2 CTS */
124 /* PC27 */ { 0, 0, 0, 1, 0, 0 }, /* PC27 */
125 /* PC26 */ { 0, 0, 0, 1, 0, 0 }, /* PC26 */
126 /* PC25 */ { 0, 0, 0, 1, 0, 0 }, /* PC25 */
127 /* PC24 */ { 0, 0, 0, 1, 0, 0 }, /* PC24 */
128 /* PC23 */ { 0, 1, 0, 1, 0, 0 }, /* PC23 */
129 /* PC22 */ { 1, 1, 0, 0, 0, 0 }, /* FCC1 TXCK */
130 /* PC21 */ { 1, 1, 0, 0, 0, 0 }, /* FCC1 RXCK */
131 /* PC20 */ { 1, 1, 0, 0, 0, 0 }, /* FCC1 TXCK(2) */
132 /* PC19 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 RXCK */
133 /* PC18 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 TXCK */
134 /* PC17 */ { 0, 0, 0, 1, 0, 0 }, /* PC17 */
135 /* PC16 */ { 0, 0, 0, 1, 0, 0 }, /* PC16 */
136 /* PC15 */ { 1, 1, 0, 1, 0, 0 }, /* SMC2 TXD */
137 /* PC14 */ { 0, 1, 0, 0, 0, 0 }, /* SCC1 DCD */
138 /* PC13 */ { 0, 0, 0, 1, 0, 0 }, /* PC13 */
139 /* PC12 */ { 0, 0, 0, 1, 0, 0 }, /* SCC2 DCD */
140 /* PC11 */ { 0, 0, 0, 1, 0, 0 }, /* SCC3 CTS */
141 /* PC10 */ { 0, 0, 0, 1, 0, 0 }, /* SCC3 DCD */
142 /* PC9 */ { 0, 0, 0, 1, 0, 0 }, /* SCC4 CTS */
143 /* PC8 */ { 0, 0, 0, 1, 0, 0 }, /* SCC4 DCD */
144 /* PC7 */ { 0, 0, 0, 1, 0, 0 }, /* PC7 */
145 /* PC6 */ { 0, 0, 0, 1, 0, 0 }, /* PC6 */
146 /* PC5 */ { 0, 0, 0, 1, 0, 0 }, /* PC5 */
147 /* PC4 */ { 0, 0, 0, 1, 0, 0 }, /* PC4 */
148 /* PC3 */ { 0, 0, 0, 1, 0, 0 }, /* PC3 */
149 /* PC2 */ { 0, 0, 0, 1, 0, 1 }, /* PC2 */
150 /* PC1 */ { 0, 0, 0, 1, 0, 0 }, /* PC1 */
151 /* PC0 */ { 0, 0, 0, 1, 0, 0 }, /* PC0 */
155 { /* conf ppar psor pdir podr pdat */
156 /* PD31 */ { 1, 1, 0, 0, 0, 0 }, /* SCC1 RXD */
157 /* PD30 */ { 0, 1, 1, 1, 0, 0 }, /* PD30 */
158 /* PD29 */ { 0, 1, 0, 1, 0, 0 }, /* SCC1 RTS */
159 /* PD28 */ { 0, 0, 0, 1, 0, 0 }, /* PD28 */
160 /* PD27 */ { 0, 1, 0, 1, 0, 0 }, /* SCC2 RTS */
161 /* PD26 */ { 0, 0, 0, 1, 0, 0 }, /* PD26 */
162 /* PD25 */ { 0, 0, 0, 1, 0, 0 }, /* PD25 */
163 /* PD24 */ { 0, 0, 0, 1, 0, 0 }, /* PD24 */
164 /* PD23 */ { 0, 0, 0, 1, 0, 0 }, /* SCC3 RTS */
165 /* PD22 */ { 1, 1, 0, 0, 0, 0 }, /* SCC4 RXD */
166 /* PD21 */ { 1, 1, 0, 1, 0, 0 }, /* SCC4 TXD */
167 /* PD20 */ { 0, 0, 1, 1, 0, 0 }, /* SCC4 RTS */
168 /* PD19 */ { 0, 0, 0, 1, 0, 0 }, /* PD19 */
169 /* PD18 */ { 0, 0, 0, 1, 0, 0 }, /* PD18 */
170 /* PD17 */ { 0, 1, 0, 0, 0, 0 }, /* PD17 */
171 /* PD16 */ { 0, 1, 0, 1, 0, 0 }, /* PD16 */
172 #if defined(CONFIG_SOFT_I2C)
173 /* PD15 */ { 1, 0, 0, 1, 1, 1 }, /* I2C SDA */
174 /* PD14 */ { 1, 0, 0, 1, 1, 1 }, /* I2C SCL */
176 #if defined(CONFIG_HARD_I2C)
177 /* PD15 */ { 1, 1, 1, 0, 1, 0 }, /* I2C SDA */
178 /* PD14 */ { 1, 1, 1, 0, 1, 0 }, /* I2C SCL */
179 #else /* normal I/O port pins */
180 /* PD15 */ { 0, 1, 1, 0, 1, 0 }, /* I2C SDA */
181 /* PD14 */ { 0, 1, 1, 0, 1, 0 }, /* I2C SCL */
184 /* PD13 */ { 0, 0, 0, 0, 0, 0 }, /* PD13 */
185 /* PD12 */ { 0, 0, 0, 0, 0, 0 }, /* PD12 */
186 /* PD11 */ { 0, 0, 0, 0, 0, 0 }, /* PD11 */
187 /* PD10 */ { 0, 0, 0, 0, 0, 0 }, /* PD10 */
188 /* PD9 */ { 0, 1, 0, 1, 0, 0 }, /* PD9 */
189 /* PD8 */ { 0, 1, 0, 0, 0, 0 }, /* PD8 */
190 /* PD7 */ { 0, 0, 0, 1, 0, 1 }, /* PD7 */
191 /* PD6 */ { 0, 0, 0, 1, 0, 1 }, /* PD6 */
192 /* PD5 */ { 0, 0, 0, 1, 0, 1 }, /* PD5 */
193 /* PD4 */ { 1, 1, 1, 0, 0, 0 }, /* SMC2 RXD */
194 /* PD3 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
195 /* PD2 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
196 /* PD1 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
197 /* PD0 */ { 0, 0, 0, 0, 0, 0 } /* pin doesn't exist */
201 /* ------------------------------------------------------------------------- */
203 /* Check Board Identity:
205 int checkboard (void)
207 puts ("Board: PM826\n");
211 /* ------------------------------------------------------------------------- */
214 /* Try SDRAM initialization with P/LSDMR=sdmr and ORx=orx
216 * This routine performs standard 8260 initialization sequence
217 * and calculates the available memory size. It may be called
218 * several times to try different SDRAM configurations on both
219 * 60x and local buses.
221 static long int try_init (volatile memctl8260_t
* memctl
, ulong sdmr
,
222 ulong orx
, volatile uchar
* base
)
224 volatile uchar c
= 0xff;
225 volatile uint
*sdmr_ptr
;
226 volatile uint
*orx_ptr
;
230 /* We must be able to test a location outsize the maximum legal size
231 * to find out THAT we are outside; but this address still has to be
232 * mapped by the controller. That means, that the initial mapping has
233 * to be (at least) twice as large as the maximum expected size.
235 maxsize
= (1 + (~orx
| 0x7fff)) / 2;
237 sdmr_ptr
= &memctl
->memc_psdmr
;
238 orx_ptr
= &memctl
->memc_or2
;
243 * Quote from 8260 UM (10.4.2 SDRAM Power-On Initialization, 10-35):
245 * "At system reset, initialization software must set up the
246 * programmable parameters in the memory controller banks registers
247 * (ORx, BRx, P/LSDMR). After all memory parameters are configured,
248 * system software should execute the following initialization sequence
249 * for each SDRAM device.
251 * 1. Issue a PRECHARGE-ALL-BANKS command
252 * 2. Issue eight CBR REFRESH commands
253 * 3. Issue a MODE-SET command to initialize the mode register
255 * The initial commands are executed by setting P/LSDMR[OP] and
256 * accessing the SDRAM with a single-byte transaction."
258 * The appropriate BRx/ORx registers have already been set when we
259 * get here. The SDRAM can be accessed at the address CONFIG_SYS_SDRAM_BASE.
262 *sdmr_ptr
= sdmr
| PSDMR_OP_PREA
;
265 *sdmr_ptr
= sdmr
| PSDMR_OP_CBRR
;
266 for (i
= 0; i
< 8; i
++)
269 *sdmr_ptr
= sdmr
| PSDMR_OP_MRW
;
270 *(base
+ CONFIG_SYS_MRS_OFFS
) = c
; /* setting MR on address lines */
272 *sdmr_ptr
= sdmr
| PSDMR_OP_NORM
| PSDMR_RFEN
;
275 size
= get_ram_size((long *)base
, maxsize
);
277 *orx_ptr
= orx
| ~(size
- 1);
283 phys_size_t
initdram (int board_type
)
285 volatile immap_t
*immap
= (immap_t
*) CONFIG_SYS_IMMR
;
286 volatile memctl8260_t
*memctl
= &immap
->im_memctl
;
288 #ifndef CONFIG_SYS_RAMBOOT
291 ulong psize
= 32 * 1024 * 1024;
293 memctl
->memc_psrt
= CONFIG_SYS_PSRT
;
294 memctl
->memc_mptpr
= CONFIG_SYS_MPTPR
;
296 #ifndef CONFIG_SYS_RAMBOOT
297 size8
= try_init (memctl
, CONFIG_SYS_PSDMR_8COL
, CONFIG_SYS_OR2_8COL
,
298 (uchar
*) CONFIG_SYS_SDRAM_BASE
);
299 size9
= try_init (memctl
, CONFIG_SYS_PSDMR_9COL
, CONFIG_SYS_OR2_9COL
,
300 (uchar
*) CONFIG_SYS_SDRAM_BASE
);
304 printf ("(60x:9COL) ");
306 psize
= try_init (memctl
, CONFIG_SYS_PSDMR_8COL
, CONFIG_SYS_OR2_8COL
,
307 (uchar
*) CONFIG_SYS_SDRAM_BASE
);
308 printf ("(60x:8COL) ");
314 #if defined(CONFIG_CMD_DOC)
317 doc_probe (CONFIG_SYS_DOC_BASE
);
322 struct pci_controller hose
;
324 extern void pci_mpc8250_init(struct pci_controller
*);
326 void pci_init_board(void)
328 pci_mpc8250_init(&hose
);
332 int board_eth_init(bd_t
*bis
)
334 return pci_eth_init(bis
);