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gerrit.devboardsforandroid.linaro.org / platform / external / u-boot / 7152b1d0b3f8beec8c297d64664e41b4c4ef610a / . / board / ep8260 / ep8260.c
blob: a49c53e7c4d2f0ff66e2a48774c528517bc93669 [file] [log] [blame]
wdenk16f21702002-08-26 21:58:50 +0000[diff] [blame]1/*
2 * (C) Copyright 2001, 2002
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4 *
5 * (C) Copyright 2002
6 * Frank Panno <fpanno@delphintech.com>, Delphin Technology AG
7 *
8 * See file CREDITS for list of people who contributed to this
9 * project.
10 *
11 * This program is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU General Public License as
13 * published by the Free Software Foundation; either version 2 of
14 * the License, or (at your option) any later version.
15 *
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
24 * MA 02111-1307 USA
25 */
26
27#include <common.h>
28#include <ioports.h>
29#include <mpc8260.h>
30#include "ep8260.h"
31/*
32 * I/O Port configuration table
33 *
34 * if conf is 1, then that port pin will be configured at boot time
35 * according to the five values podr/pdir/ppar/psor/pdat for that entry
36 */
37
38const iop_conf_t iop_conf_tab[4][32] = {
39
40 /* Port A configuration */
41 { /* conf ppar psor pdir podr pdat */
42 /* PA31 */ { 0, 0, 0, 1, 0, 0 }, /* */
43 /* PA30 */ { 0, 0, 0, 1, 0, 0 }, /* */
44 /* PA29 */ { 0, 0, 0, 1, 0, 0 }, /* */
45 /* PA28 */ { 0, 0, 0, 1, 0, 0 }, /* */
46 /* PA27 */ { 0, 0, 0, 1, 0, 0 }, /* */
47 /* PA26 */ { 0, 0, 0, 1, 0, 0 }, /* */
48 /* PA25 */ { 0, 0, 0, 1, 0, 0 }, /* */
49 /* PA24 */ { 0, 0, 0, 1, 0, 0 }, /* */
50 /* PA23 */ { 0, 0, 0, 1, 0, 0 }, /* */
51 /* PA22 */ { 0, 0, 0, 1, 0, 0 }, /* */
52 /* PA21 */ { 0, 0, 0, 1, 0, 0 }, /* */
53 /* PA20 */ { 0, 0, 0, 1, 0, 0 }, /* */
54 /* PA19 */ { 0, 0, 0, 1, 0, 0 }, /* */
55 /* PA18 */ { 0, 0, 0, 1, 0, 0 }, /* */
56 /* PA17 */ { 0, 0, 0, 1, 0, 0 }, /* */
57 /* PA16 */ { 0, 0, 0, 1, 0, 0 }, /* */
58 /* PA15 */ { 0, 0, 0, 1, 0, 0 }, /* */
59 /* PA14 */ { 0, 0, 0, 1, 0, 0 }, /* */
60 /* PA13 */ { 0, 0, 0, 1, 0, 0 }, /* */
61 /* PA12 */ { 0, 0, 0, 1, 0, 0 }, /* */
62 /* PA11 */ { 0, 0, 0, 1, 0, 0 }, /* */
63 /* PA10 */ { 0, 0, 0, 1, 0, 0 }, /* */
64 /* PA9 */ { 0, 1, 0, 1, 0, 0 }, /* */
65 /* PA8 */ { 0, 1, 0, 0, 0, 0 }, /* */
66 /* PA7 */ { 0, 0, 0, 1, 0, 0 }, /* PA7 */
67 /* PA6 */ { 0, 0, 0, 1, 0, 0 }, /* PA6 */
68 /* PA5 */ { 0, 0, 0, 1, 0, 0 }, /* PA5 */
69 /* PA4 */ { 0, 0, 0, 1, 0, 0 }, /* PA4 */
70 /* PA3 */ { 0, 0, 0, 1, 0, 0 }, /* PA3 */
71 /* PA2 */ { 0, 0, 0, 1, 0, 0 }, /* PA2 */
72 /* PA1 */ { 0, 0, 0, 1, 0, 0 }, /* PA1 */
73 /* PA0 */ { 0, 0, 0, 1, 0, 0 } /* PA0 */
74 },
75
76 /* Port B configuration */
77 { /* conf ppar psor pdir podr pdat */
78 /* PB31 */ { 0, 1, 0, 1, 0, 0 }, /* */
79 /* PB30 */ { 0, 1, 0, 0, 0, 0 }, /* */
80 /* PB29 */ { 0, 1, 1, 1, 0, 0 }, /* */
81 /* PB28 */ { 0, 1, 0, 0, 0, 0 }, /* */
82 /* PB27 */ { 0, 1, 0, 0, 0, 0 }, /* */
83 /* PB26 */ { 0, 1, 0, 0, 0, 0 }, /* */
84 /* PB25 */ { 0, 1, 0, 1, 0, 0 }, /* */
85 /* PB24 */ { 0, 1, 0, 1, 0, 0 }, /* */
86 /* PB23 */ { 0, 1, 0, 1, 0, 0 }, /* */
87 /* PB22 */ { 0, 1, 0, 1, 0, 0 }, /* */
88 /* PB21 */ { 0, 1, 0, 0, 0, 0 }, /* */
89 /* PB20 */ { 0, 1, 0, 0, 0, 0 }, /* */
90 /* PB19 */ { 0, 1, 0, 0, 0, 0 }, /* */
91 /* PB18 */ { 0, 1, 0, 0, 0, 0 }, /* */
92 /* PB17 */ { 1, 1, 0, 0, 0, 0 }, /* FCC3 MII RX_DV */
93 /* PB16 */ { 1, 1, 0, 0, 0, 0 }, /* FCC3 MII RX_ER */
94 /* PB15 */ { 1, 1, 0, 1, 0, 0 }, /* FCC3 MII TX_ER */
95 /* PB14 */ { 1, 1, 0, 1, 0, 0 }, /* FCC3 MII TX_EN */
96 /* PB13 */ { 1, 1, 0, 0, 0, 0 }, /* FCC3 MII COL */
97 /* PB12 */ { 1, 1, 0, 0, 0, 0 }, /* FCC3 MII CRS */
98 /* PB11 */ { 1, 1, 0, 0, 0, 0 }, /* FCC3 MII RxD[3] */
99 /* PB10 */ { 1, 1, 0, 0, 0, 0 }, /* FCC3 MII RxD[2] */
100 /* PB9 */ { 1, 1, 0, 0, 0, 0 }, /* FCC3 MII RxD[1] */
101 /* PB8 */ { 1, 1, 0, 0, 0, 0 }, /* FCC3 MII RxD[0] */
102 /* PB7 */ { 0, 0, 0, 0, 0, 0 }, /* PB7 */
103 /* PB6 */ { 1, 1, 0, 1, 0, 0 }, /* FCC3 MII TxD[1] */
104 /* PB5 */ { 1, 1, 0, 1, 0, 0 }, /* FCC3 MII TxD[2] */
105 /* PB4 */ { 1, 1, 0, 1, 0, 0 }, /* FCC3 MII TxD[3] */
106 /* PB3 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
107 /* PB2 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
108 /* PB1 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
109 /* PB0 */ { 0, 0, 0, 0, 0, 0 } /* pin doesn't exist */
110 },
111
112 /* Port C */
113 { /* conf ppar psor pdir podr pdat */
114 /* PC31 */ { 0, 0, 0, 1, 0, 0 }, /* PC31 */
115 /* PC30 */ { 0, 0, 0, 1, 0, 0 }, /* PC30 */
116 /* PC29 */ { 0, 1, 1, 0, 0, 0 }, /* */
117 /* PC28 */ { 0, 0, 0, 1, 0, 0 }, /* PC28 */
118 /* PC27 */ { 1, 1, 0, 1, 0, 0 }, /* FCC3 MII TxD[0] */
119 /* PC26 */ { 0, 0, 0, 1, 0, 0 }, /* PC26 */
120 /* PC25 */ { 0, 0, 0, 1, 0, 0 }, /* PC25 */
121 /* PC24 */ { 0, 0, 0, 1, 0, 0 }, /* PC24 */
122 /* PC23 */ { 0, 1, 0, 1, 0, 0 }, /* */
123 /* PC22 */ { 0, 1, 0, 0, 0, 0 }, /* */
124 /* PC21 */ { 0, 1, 0, 0, 0, 0 }, /* */
125 /* PC20 */ { 0, 1, 0, 0, 0, 0 }, /* */
126 /* PC19 */ { 0, 1, 0, 0, 0, 0 }, /* */
127 /* PC18 */ { 0, 1, 0, 0, 0, 0 }, /* */
128 /* PC17 */ { 1, 1, 0, 0, 0, 0 }, /* FCC3 MII CLK15 */
129 /* PC16 */ { 1, 1, 0, 0, 0, 0 }, /* FCC3 MII CLK16 */
130 /* PC15 */ { 0, 0, 0, 1, 0, 0 }, /* PC15 */
131 /* PC14 */ { 0, 1, 0, 0, 0, 0 }, /* */
132 /* PC13 */ { 0, 0, 0, 1, 0, 0 }, /* PC13 */
133 /* PC12 */ { 0, 0, 0, 1, 0, 0 }, /* PC12 */
134 /* PC11 */ { 0, 0, 0, 1, 0, 0 }, /* PC11 */
135 /* PC10 */ { 0, 0, 0, 1, 0, 0 }, /* */
136 /* PC9 */ { 0, 0, 0, 1, 0, 0 }, /* */
137 /* PC8 */ { 0, 0, 0, 1, 0, 0 }, /* PC8 */
138 /* PC7 */ { 0, 0, 0, 1, 0, 0 }, /* PC7 */
139 /* PC6 */ { 0, 0, 0, 1, 0, 0 }, /* PC6 */
140 /* PC5 */ { 0, 0, 0, 1, 0, 0 }, /* PC5 */
141 /* PC4 */ { 0, 0, 0, 1, 0, 0 }, /* PC4 */
142 /* PC3 */ { 0, 0, 0, 1, 0, 0 }, /* PC3 */
143 /* PC2 */ { 0, 0, 0, 1, 0, 1 }, /* */
144 /* PC1 */ { 0, 0, 0, 1, 0, 0 }, /* */
145 /* PC0 */ { 0, 0, 0, 1, 0, 0 }, /* */
146 },
147
148 /* Port D */
149 { /* conf ppar psor pdir podr pdat */
150 /* PD31 */ { 0, 1, 0, 0, 0, 0 }, /* */
151 /* PD30 */ { 0, 1, 1, 1, 0, 0 }, /* */
152 /* PD29 */ { 0, 1, 0, 1, 0, 0 }, /* */
153 /* PD28 */ { 0, 0, 0, 1, 0, 0 }, /* PD28 */
154 /* PD27 */ { 0, 0, 0, 1, 0, 0 }, /* PD27 */
155 /* PD26 */ { 0, 0, 0, 1, 0, 0 }, /* PD26 */
156 /* PD25 */ { 0, 0, 0, 1, 0, 0 }, /* PD25 */
157 /* PD24 */ { 0, 0, 0, 1, 0, 0 }, /* PD24 */
158 /* PD23 */ { 0, 0, 0, 1, 0, 0 }, /* PD23 */
159 /* PD22 */ { 0, 0, 0, 1, 0, 0 }, /* PD22 */
160 /* PD21 */ { 0, 0, 0, 1, 0, 0 }, /* PD21 */
161 /* PD20 */ { 0, 0, 0, 1, 0, 0 }, /* PD20 */
162 /* PD19 */ { 0, 0, 0, 1, 0, 0 }, /* PD19 */
163 /* PD18 */ { 0, 0, 0, 1, 0, 0 }, /* PD19 */
164 /* PD17 */ { 0, 1, 0, 0, 0, 0 }, /* */
165 /* PD16 */ { 0, 1, 0, 1, 0, 0 }, /* */
166 /* PD15 */ { 1, 1, 1, 0, 1, 0 }, /* I2C SDA */
167 /* PD14 */ { 1, 1, 1, 0, 1, 0 }, /* I2C SCL */
168 /* PD13 */ { 0, 0, 0, 0, 0, 0 }, /* PD13 */
169 /* PD12 */ { 0, 0, 0, 0, 0, 0 }, /* PD12 */
170 /* PD11 */ { 0, 0, 0, 0, 0, 0 }, /* PD11 */
171 /* PD10 */ { 0, 0, 0, 0, 0, 0 }, /* PD10 */
172 /* PD9 */ { 1, 1, 0, 1, 0, 0 }, /* SMC1 TXD */
173 /* PD8 */ { 1, 1, 0, 0, 0, 0 }, /* SMC1 RXD */
174 /* PD7 */ { 0, 0, 0, 1, 0, 1 }, /* PD7 */
175 /* PD6 */ { 0, 0, 0, 1, 0, 1 }, /* PD6 */
176 /* PD5 */ { 0, 0, 0, 1, 0, 1 }, /* PD5 */
177 /* PD4 */ { 0, 0, 0, 1, 0, 1 }, /* PD4 */
178 /* PD3 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
179 /* PD2 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
180 /* PD1 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
181 /* PD0 */ { 0, 0, 0, 0, 0, 0 } /* pin doesn't exist */
182 }
183};
184
185/* ------------------------------------------------------------------------- */
186
187/*
188 * Setup CS4 to enable the Board Control/Status registers.
189 * Otherwise the smcs won't work.
190*/
191int board_pre_init (void)
192{
193 volatile t_ep_regs *regs = (t_ep_regs*)CFG_REGS_BASE;
194 volatile immap_t *immap = (immap_t *)CFG_IMMR;
195 volatile memctl8260_t *memctl = &immap->im_memctl;
196 memctl->memc_br4 = CFG_BR4_PRELIM;
197 memctl->memc_or4 = CFG_OR4_PRELIM;
198 regs->bcsr1 = 0x62; /* to enable terminal on SMC1 */
199 regs->bcsr2 = 0x30; /* enable NVRAM and writing FLASH */
200 return 0;
201}
202
203void
204reset_phy(void)
205{
206 volatile t_ep_regs *regs = (t_ep_regs*)CFG_REGS_BASE;
207 regs->bcsr4 = 0xC0;
208}
209
210/*
211 * Check Board Identity:
212 * I don' know, how the next board revisions will be coded.
213 * Thats why its a static interpretation ...
214*/
215
216int
217checkboard(void)
218{
219 volatile t_ep_regs *regs = (t_ep_regs*)CFG_REGS_BASE;
220 uint major=0, minor=0;
221 switch (regs->bcsr0) {
222 case 0x02: major = 1; break;
223 case 0x03: major = 1; minor = 1; break;
224 default: break;
225 }
226 printf ("Board: Embedded Planet EP8260, Revision %d.%d\n",
227 major, minor);
228 return 0;
229}
230
231
232/* ------------------------------------------------------------------------- */
233
234
235long int
236initdram(int board_type)
237{
238 volatile immap_t *immap = (immap_t *)CFG_IMMR;
239 volatile memctl8260_t *memctl = &immap->im_memctl;
240 volatile uchar c = 0;
241 volatile uchar *ramaddr = (uchar *)(CFG_SDRAM_BASE) + 0x110;
242/*
243 ulong psdmr = CFG_PSDMR;
244#ifdef CFG_LSDRAM
245 ulong lsdmr = CFG_LSDMR;
246#endif
247*/
248 long size = CFG_SDRAM0_SIZE;
249 int i;
250
251
252/*
253* Quote from 8260 UM (10.4.2 SDRAM Power-On Initialization, 10-35):
254*
255* "At system reset, initialization software must set up the
256* programmable parameters in the memory controller banks registers
257* (ORx, BRx, P/LSDMR). After all memory parameters are configured,
258* system software should execute the following initialization sequence
259* for each SDRAM device.
260*
261* 1. Issue a PRECHARGE-ALL-BANKS command
262* 2. Issue eight CBR REFRESH commands
263* 3. Issue a MODE-SET command to initialize the mode register
264*
265* The initial commands are executed by setting P/LSDMR[OP] and
266* accessing the SDRAM with a single-byte transaction."
267*
268* The appropriate BRx/ORx registers have already been set when we
269* get here. The SDRAM can be accessed at the address CFG_SDRAM_BASE.
270*/
271
272 memctl->memc_psrt = CFG_PSRT;
273 memctl->memc_mptpr = CFG_MPTPR;
274
275 memctl->memc_psdmr = (ulong) CFG_PSDMR | PSDMR_OP_PREA;
276 *ramaddr = c;
277
278 memctl->memc_psdmr = (ulong) CFG_PSDMR | PSDMR_OP_CBRR;
279 for (i = 0; i < 8; i++)
280 *ramaddr = c;
281
282 memctl->memc_psdmr = (ulong) CFG_PSDMR | PSDMR_OP_MRW;
283 *ramaddr = c;
284
285 memctl->memc_psdmr = (ulong) CFG_PSDMR | PSDMR_OP_NORM | PSDMR_RFEN;
286 *ramaddr = c;
287
288#ifndef CFG_RAMBOOT
289#ifdef CFG_LSDRAM
290 size += CFG_SDRAM1_SIZE;
291 ramaddr = (uchar *)(CFG_SDRAM1_BASE) + 0x8c;
292 memctl->memc_lsrt = CFG_LSRT;
293
294 memctl->memc_lsdmr = (ulong) CFG_LSDMR | PSDMR_OP_PREA;
295 *ramaddr = c;
296
297 memctl->memc_lsdmr = (ulong) CFG_LSDMR | PSDMR_OP_CBRR;
298 for (i = 0; i < 8; i++)
299 *ramaddr = c;
300
301 memctl->memc_lsdmr = (ulong) CFG_LSDMR | PSDMR_OP_MRW;
302 *ramaddr = c;
303
304 memctl->memc_lsdmr = (ulong) CFG_LSDMR | PSDMR_OP_NORM | PSDMR_RFEN;
305 *ramaddr = c;
306#endif /* CFG_LSDRAM */
307#endif /* CFG_RAMBOOT */
308 return (size * 1024 * 1024);
309}