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to make u-boot work for fat32 filesystem
[jz_uboot.git] / board / sbc8260 / sbc8260.c
blob48aefa010e240a63dc315f95b4078a37d252ed7e
1 /*
2 * (C) Copyright 2000
3 * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
4 * Marius Groeger <mgroeger@sysgo.de>
5 *
6 * (C) Copyright 2001
7 * Advent Networks, Inc. <http://www.adventnetworks.com>
8 * Jay Monkman <jtm@smoothsmoothie.com>
9 *
10 * See file CREDITS for list of people who contributed to this
11 * project.
12 *
13 * This program is free software; you can redistribute it and/or
14 * modify it under the terms of the GNU General Public License as
15 * published by the Free Software Foundation; either version 2 of
16 * the License, or (at your option) any later version.
17 *
18 * This program is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 * GNU General Public License for more details.
22 *
23 * You should have received a copy of the GNU General Public License
24 * along with this program; if not, write to the Free Software
25 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
26 * MA 02111-1307 USA
27 */
28
29 #include <common.h>
30 #include <ioports.h>
31 #include <mpc8260.h>
32
33 /*
34 * I/O Port configuration table
35 *
36 * if conf is 1, then that port pin will be configured at boot time
37 * according to the five values podr/pdir/ppar/psor/pdat for that entry
38 */
39
40 const iop_conf_t iop_conf_tab[4][32] = {
41
42 /* Port A configuration */
43 { /* conf ppar psor pdir podr pdat */
44 /* PA31 */ { 1, 0, 0, 1, 0, 0 }, /* FCC1 *ATMTXEN */
45 /* PA30 */ { 1, 0, 0, 1, 0, 0 }, /* FCC1 ATMTCA */
46 /* PA29 */ { 1, 0, 0, 1, 0, 0 }, /* FCC1 ATMTSOC */
47 /* PA28 */ { 1, 0, 0, 1, 0, 0 }, /* FCC1 *ATMRXEN */
48 /* PA27 */ { 1, 0, 0, 1, 0, 0 }, /* FCC1 ATMRSOC */
49 /* PA26 */ { 1, 0, 0, 1, 0, 0 }, /* FCC1 ATMRCA */
50 /* PA25 */ { 1, 0, 0, 1, 0, 0 }, /* FCC1 ATMTXD[0] */
51 /* PA24 */ { 1, 0, 0, 1, 0, 0 }, /* FCC1 ATMTXD[1] */
52 /* PA23 */ { 1, 0, 0, 1, 0, 0 }, /* FCC1 ATMTXD[2] */
53 /* PA22 */ { 1, 0, 0, 1, 0, 0 }, /* FCC1 ATMTXD[3] */
54 /* PA21 */ { 1, 0, 0, 1, 0, 0 }, /* FCC1 ATMTXD[4] */
55 /* PA20 */ { 1, 0, 0, 1, 0, 0 }, /* FCC1 ATMTXD[5] */
56 /* PA19 */ { 1, 0, 0, 1, 0, 0 }, /* FCC1 ATMTXD[6] */
57 /* PA18 */ { 1, 0, 0, 1, 0, 0 }, /* FCC1 ATMTXD[7] */
58 /* PA17 */ { 1, 0, 0, 1, 0, 0 }, /* FCC1 ATMRXD[7] */
59 /* PA16 */ { 1, 0, 0, 1, 0, 0 }, /* FCC1 ATMRXD[6] */
60 /* PA15 */ { 1, 0, 0, 1, 0, 0 }, /* FCC1 ATMRXD[5] */
61 /* PA14 */ { 1, 0, 0, 1, 0, 0 }, /* FCC1 ATMRXD[4] */
62 /* PA13 */ { 1, 0, 0, 1, 0, 0 }, /* FCC1 ATMRXD[3] */
63 /* PA12 */ { 1, 0, 0, 1, 0, 0 }, /* FCC1 ATMRXD[2] */
64 /* PA11 */ { 1, 0, 0, 1, 0, 0 }, /* FCC1 ATMRXD[1] */
65 /* PA10 */ { 1, 0, 0, 1, 0, 0 }, /* FCC1 ATMRXD[0] */
66 /* PA9 */ { 1, 1, 0, 1, 0, 0 }, /* SMC2 TXD */
67 /* PA8 */ { 1, 1, 0, 0, 0, 0 }, /* SMC2 RXD */
68 /* PA7 */ { 1, 0, 0, 1, 0, 0 }, /* PA7 */
69 /* PA6 */ { 1, 0, 0, 1, 0, 0 }, /* PA6 */
70 /* PA5 */ { 1, 0, 0, 1, 0, 0 }, /* PA5 */
71 /* PA4 */ { 1, 0, 0, 1, 0, 0 }, /* PA4 */
72 /* PA3 */ { 1, 0, 0, 1, 0, 0 }, /* PA3 */
73 /* PA2 */ { 1, 0, 0, 1, 0, 0 }, /* PA2 */
74 /* PA1 */ { 1, 0, 0, 1, 0, 0 }, /* PA1 */
75 /* PA0 */ { 1, 0, 0, 1, 0, 0 } /* PA0 */
76 },
77
78 /* Port B configuration */
79 { /* conf ppar psor pdir podr pdat */
80 /* PB31 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TX_ER */
81 /* PB30 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RX_DV */
82 /* PB29 */ { 1, 1, 1, 1, 0, 0 }, /* FCC2 MII TX_EN */
83 /* PB28 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RX_ER */
84 /* PB27 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII COL */
85 /* PB26 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII CRS */
86 /* PB25 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[3] */
87 /* PB24 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[2] */
88 /* PB23 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[1] */
89 /* PB22 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[0] */
90 /* PB21 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[0] */
91 /* PB20 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[1] */
92 /* PB19 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[2] */
93 /* PB18 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[3] */
94 /* PB17 */ { 1, 0, 0, 1, 0, 0 }, /* PB17 */
95 /* PB16 */ { 1, 0, 0, 1, 0, 0 }, /* PB16 */
96 /* PB15 */ { 1, 0, 0, 1, 0, 0 }, /* PB15 */
97 /* PB14 */ { 1, 0, 0, 1, 0, 0 }, /* PB14 */
98 /* PB13 */ { 1, 0, 0, 1, 0, 0 }, /* PB13 */
99 /* PB12 */ { 1, 0, 0, 1, 0, 0 }, /* PB12 */
100 /* PB11 */ { 1, 0, 0, 1, 0, 0 }, /* PB11 */
101 /* PB10 */ { 1, 0, 0, 1, 0, 0 }, /* PB10 */
102 /* PB9 */ { 1, 0, 0, 1, 0, 0 }, /* PB9 */
103 /* PB8 */ { 1, 0, 0, 1, 0, 0 }, /* PB8 */
104 /* PB7 */ { 1, 0, 0, 1, 0, 0 }, /* PB7 */
105 /* PB6 */ { 1, 0, 0, 1, 0, 0 }, /* PB6 */
106 /* PB5 */ { 1, 0, 0, 1, 0, 0 }, /* PB5 */
107 /* PB4 */ { 1, 0, 0, 1, 0, 0 }, /* PB4 */
108 /* PB3 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
109 /* PB2 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
110 /* PB1 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
111 /* PB0 */ { 0, 0, 0, 0, 0, 0 } /* pin doesn't exist */
112 },
113
114 /* Port C */
115 { /* conf ppar psor pdir podr pdat */
116 /* PC31 */ { 1, 0, 0, 1, 0, 0 }, /* PC31 */
117 /* PC30 */ { 1, 0, 0, 1, 0, 0 }, /* PC30 */
118 /* PC29 */ { 1, 1, 1, 0, 0, 0 }, /* SCC1 EN *CLSN */
119 /* PC28 */ { 1, 0, 0, 1, 0, 0 }, /* PC28 */
120 /* PC27 */ { 1, 0, 0, 1, 0, 0 }, /* PC27 */
121 /* PC26 */ { 1, 0, 0, 1, 0, 0 }, /* PC26 */
122 /* PC25 */ { 1, 0, 0, 1, 0, 0 }, /* PC25 */
123 /* PC24 */ { 1, 0, 0, 1, 0, 0 }, /* PC24 */
124 /* PC23 */ { 1, 1, 0, 1, 0, 0 }, /* ATMTFCLK */
125 /* PC22 */ { 1, 1, 0, 0, 0, 0 }, /* ATMRFCLK */
126 /* PC21 */ { 1, 1, 0, 0, 0, 0 }, /* SCC1 EN RXCLK */
127 /* PC20 */ { 1, 1, 0, 0, 0, 0 }, /* SCC1 EN TXCLK */
128 /* PC19 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RX_CLK */
129 /* PC18 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII TX_CLK */
130 /* PC17 */ { 1, 0, 0, 1, 0, 0 }, /* PC17 */
131 /* PC16 */ { 1, 0, 0, 1, 0, 0 }, /* PC16 */
132 /* PC15 */ { 1, 0, 0, 1, 0, 0 }, /* PC15 */
133 /* PC14 */ { 1, 1, 0, 0, 0, 0 }, /* SCC1 EN *CD */
134 /* PC13 */ { 1, 0, 0, 1, 0, 0 }, /* PC13 */
135 /* PC12 */ { 1, 0, 0, 1, 0, 0 }, /* PC12 */
136 /* PC11 */ { 1, 0, 0, 1, 0, 0 }, /* PC11 */
137 /* PC10 */ { 1, 0, 0, 1, 0, 0 }, /* FCC2 MDC */
138 /* PC9 */ { 1, 0, 0, 1, 0, 0 }, /* FCC2 MDIO */
139 /* PC8 */ { 1, 0, 0, 1, 0, 0 }, /* PC8 */
140 /* PC7 */ { 1, 0, 0, 1, 0, 0 }, /* PC7 */
141 /* PC6 */ { 1, 0, 0, 1, 0, 0 }, /* PC6 */
142 /* PC5 */ { 1, 0, 0, 1, 0, 0 }, /* PC5 */
143 /* PC4 */ { 1, 0, 0, 1, 0, 0 }, /* PC4 */
144 /* PC3 */ { 1, 0, 0, 1, 0, 0 }, /* PC3 */
145 /* PC2 */ { 1, 0, 0, 1, 0, 1 }, /* ENET FDE */
146 /* PC1 */ { 1, 0, 0, 1, 0, 0 }, /* ENET DSQE */
147 /* PC0 */ { 1, 0, 0, 1, 0, 0 }, /* ENET LBK */
148 },
149
150 /* Port D */
151 { /* conf ppar psor pdir podr pdat */
152 /* PD31 */ { 1, 1, 0, 0, 0, 0 }, /* SCC1 EN RxD */
153 /* PD30 */ { 1, 1, 1, 1, 0, 0 }, /* SCC1 EN TxD */
154 /* PD29 */ { 1, 1, 0, 1, 0, 0 }, /* SCC1 EN TENA */
155 /* PD28 */ { 1, 0, 0, 1, 0, 0 }, /* PD28 */
156 /* PD27 */ { 1, 0, 0, 1, 0, 0 }, /* PD27 */
157 /* PD26 */ { 1, 0, 0, 1, 0, 0 }, /* PD26 */
158 /* PD25 */ { 1, 0, 0, 1, 0, 0 }, /* PD25 */
159 /* PD24 */ { 1, 0, 0, 1, 0, 0 }, /* PD24 */
160 /* PD23 */ { 1, 0, 0, 1, 0, 0 }, /* PD23 */
161 /* PD22 */ { 1, 0, 0, 1, 0, 0 }, /* PD22 */
162 /* PD21 */ { 1, 0, 0, 1, 0, 0 }, /* PD21 */
163 /* PD20 */ { 1, 0, 0, 1, 0, 0 }, /* PD20 */
164 /* PD19 */ { 1, 0, 0, 1, 0, 0 }, /* PD19 */
165 /* PD18 */ { 1, 0, 0, 1, 0, 0 }, /* PD18 */
166 /* PD17 */ { 1, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXPRTY */
167 /* PD16 */ { 1, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXPRTY */
168 #if defined(CONFIG_SOFT_I2C)
169 /* PD15 */ { 1, 0, 0, 1, 1, 1 }, /* I2C SDA */
170 /* PD14 */ { 1, 0, 0, 1, 1, 1 }, /* I2C SCL */
171 #else
172 #if defined(CONFIG_HARD_I2C)
173 /* PD15 */ { 1, 1, 1, 0, 1, 0 }, /* I2C SDA */
174 /* PD14 */ { 1, 1, 1, 0, 1, 0 }, /* I2C SCL */
175 #else /* normal I/O port pins */
176 /* PD15 */ { 1, 0, 0, 1, 0, 0 }, /* I2C SDA */
177 /* PD14 */ { 1, 0, 0, 1, 0, 0 }, /* I2C SCL */
178 #endif
179 #endif
180 /* PD13 */ { 1, 0, 0, 0, 0, 0 }, /* PD13 */
181 /* PD12 */ { 1, 0, 0, 0, 0, 0 }, /* PD12 */
182 /* PD11 */ { 1, 0, 0, 0, 0, 0 }, /* PD11 */
183 /* PD10 */ { 1, 0, 0, 0, 0, 0 }, /* PD10 */
184 /* PD9 */ { 1, 1, 0, 1, 0, 0 }, /* SMC1 TXD */
185 /* PD8 */ { 1, 1, 0, 0, 0, 0 }, /* SMC1 RXD */
186 /* PD7 */ { 1, 0, 0, 1, 0, 1 }, /* PD7 */
187 /* PD6 */ { 1, 0, 0, 1, 0, 1 }, /* PD6 */
188 /* PD5 */ { 1, 0, 0, 1, 0, 1 }, /* PD5 */
189 /* PD4 */ { 1, 0, 0, 1, 0, 1 }, /* PD4 */
190 /* PD3 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
191 /* PD2 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
192 /* PD1 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
193 /* PD0 */ { 0, 0, 0, 0, 0, 0 } /* pin doesn't exist */
194 }
195 };
196
197 /* ------------------------------------------------------------------------- */
198
199 /*
200 * Check Board Identity:
201 */
202
203 int checkboard (void)
204 {
205 puts ("Board: EST SBC8260\n");
206 return 0;
207 }
208
209 /* ------------------------------------------------------------------------- */
210
211 long int initdram (int board_type)
212 {
213 volatile immap_t *immap = (immap_t *) CFG_IMMR;
214 volatile memctl8260_t *memctl = &immap->im_memctl;
215 volatile uchar c = 0, *ramaddr = (uchar *) (CFG_SDRAM_BASE + 0x8);
216 ulong psdmr = CFG_PSDMR;
217 int i;
218
219 /*
220 * Quote from 8260 UM (10.4.2 SDRAM Power-On Initialization, 10-35):
221 *
222 * "At system reset, initialization software must set up the
223 * programmable parameters in the memory controller banks registers
224 * (ORx, BRx, P/LSDMR). After all memory parameters are configured,
225 * system software should execute the following initialization sequence
226 * for each SDRAM device.
227 *
228 * 1. Issue a PRECHARGE-ALL-BANKS command
229 * 2. Issue eight CBR REFRESH commands
230 * 3. Issue a MODE-SET command to initialize the mode register
231 *
232 * The initial commands are executed by setting P/LSDMR[OP] and
233 * accessing the SDRAM with a single-byte transaction."
234 *
235 * The appropriate BRx/ORx registers have already been set when we
236 * get here. The SDRAM can be accessed at the address CFG_SDRAM_BASE.
237 */
238
239 memctl->memc_psrt = CFG_PSRT;
240 memctl->memc_mptpr = CFG_MPTPR;
241
242 memctl->memc_psdmr = psdmr | PSDMR_OP_PREA;
243 *ramaddr = c;
244
245 memctl->memc_psdmr = psdmr | PSDMR_OP_CBRR;
246 for (i = 0; i < 8; i++)
247 *ramaddr = c;
248
249 memctl->memc_psdmr = psdmr | PSDMR_OP_MRW;
250 *ramaddr = c;
251
252 memctl->memc_psdmr = psdmr | PSDMR_OP_NORM | PSDMR_RFEN;
253 *ramaddr = c;
254
255 /* return total ram size */
256 return (CFG_SDRAM0_SIZE * 1024 * 1024);
257 }
258
259 #ifdef CONFIG_MISC_INIT_R
260 /* ------------------------------------------------------------------------- */
261 int misc_init_r (void)
262 {
263 #ifdef CFG_LED_BASE
264 uchar ds = *(unsigned char *) (CFG_LED_BASE + 1);
265 uchar ss;
266 uchar tmp[64];
267 int res;
268
269 if ((ds != 0) && (ds != 0xff)) {
270 res = getenv_r ("ethaddr", tmp, sizeof (tmp));
271 if (res > 0) {
272 ss = ((ds >> 4) & 0x0f);
273 ss += ss < 0x0a ? '0' : ('a' - 10);
274 tmp[15] = ss;
275
276 ss = (ds & 0x0f);
277 ss += ss < 0x0a ? '0' : ('a' - 10);
278 tmp[16] = ss;
279
280 tmp[17] = '\0';
281 setenv ("ethaddr", tmp);
282 /* set the led to show the address */
283 *((unsigned char *) (CFG_LED_BASE + 1)) = ds;
284 }
285 }
286 #endif /* CFG_LED_BASE */
287 return (0);
288 }
289 #endif /* CONFIG_MISC_INIT_R */
uboot for JZ soc