2
* (C) Copyright 2001-2004
3
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5
* SPDX-License-Identifier: GPL-2.0+
15
* I/O Port configuration table
17
* if conf is 1, then that port pin will be configured at boot time
18
* according to the five values podr/pdir/ppar/psor/pdat for that entry
21
const iop_conf_t iop_conf_tab[4][32] = {
23
/* Port A configuration */
24
{ /* conf ppar psor pdir podr pdat */
25
/* PA31 */ { 1, 1, 1, 0, 0, 0 }, /* FCC1 COL */
26
/* PA30 */ { 1, 1, 1, 0, 0, 0 }, /* FCC1 CRS */
27
/* PA29 */ { 1, 1, 1, 1, 0, 0 }, /* FCC1 TXER */
28
/* PA28 */ { 1, 1, 1, 1, 0, 0 }, /* FCC1 TXEN */
29
/* PA27 */ { 1, 1, 1, 0, 0, 0 }, /* FCC1 RXDV */
30
/* PA26 */ { 1, 1, 1, 0, 0, 0 }, /* FCC1 RXER */
31
/* PA25 */ { 0, 0, 0, 1, 0, 0 }, /* PA25 */
32
/* PA24 */ { 0, 0, 0, 1, 0, 0 }, /* PA24 */
33
/* PA23 */ { 0, 0, 0, 1, 0, 0 }, /* PA23 */
34
/* PA22 */ { 0, 0, 0, 1, 0, 0 }, /* PA22 */
35
/* PA21 */ { 1, 1, 0, 1, 0, 0 }, /* FCC1 TXD3 */
36
/* PA20 */ { 1, 1, 0, 1, 0, 0 }, /* FCC1 TXD2 */
37
/* PA19 */ { 1, 1, 0, 1, 0, 0 }, /* FCC1 TXD1 */
38
/* PA18 */ { 1, 1, 0, 1, 0, 0 }, /* FCC1 TXD0 */
39
/* PA17 */ { 1, 1, 0, 0, 0, 0 }, /* FCC1 RXD0 */
40
/* PA16 */ { 1, 1, 0, 0, 0, 0 }, /* FCC1 RXD1*/
41
/* PA15 */ { 1, 1, 0, 0, 0, 0 }, /* FCC1 RXD2 */
42
/* PA14 */ { 1, 1, 0, 0, 0, 0 }, /* FCC1 RXD3 */
43
/* PA13 */ { 0, 0, 0, 1, 0, 0 }, /* PA13 */
44
/* PA12 */ { 0, 0, 0, 1, 0, 0 }, /* PA12 */
45
/* PA11 */ { 0, 0, 0, 1, 0, 0 }, /* PA11 */
46
/* PA10 */ { 0, 0, 0, 1, 0, 0 }, /* PA10 */
47
/* PA9 */ { 0, 1, 0, 1, 0, 0 }, /* PA9 */
48
/* PA8 */ { 0, 1, 0, 0, 0, 0 }, /* PA8 */
49
/* PA7 */ { 0, 0, 0, 1, 0, 0 }, /* PA7 */
50
/* PA6 */ { 0, 0, 0, 1, 0, 0 }, /* PA6 */
51
/* PA5 */ { 0, 0, 0, 1, 0, 0 }, /* PA5 */
52
/* PA4 */ { 0, 0, 0, 1, 0, 0 }, /* PA4 */
53
/* PA3 */ { 0, 0, 0, 1, 0, 0 }, /* PA3 */
54
/* PA2 */ { 0, 0, 0, 1, 0, 0 }, /* PA2 */
55
/* PA1 */ { 0, 0, 0, 1, 0, 0 }, /* PA1 */
56
/* PA0 */ { 0, 0, 0, 1, 0, 0 } /* PA0 */
59
/* Port B configuration */
60
{ /* conf ppar psor pdir podr pdat */
61
/* PB31 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 TX_ER */
62
/* PB30 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 RX_DV */
63
/* PB29 */ { 1, 1, 1, 1, 0, 0 }, /* FCC2 TX_EN */
64
#if defined(CONFIG_ETHER_ON_SCC) && (CONFIG_ETHER_INDEX == 1)
65
#ifdef CONFIG_ETHER_ON_FCC2
66
#error "SCC1 conflicts with FCC2"
68
/* PB28 */ { 1, 1, 1, 1, 0, 0 }, /* SCC1 TXD */
70
/* PB28 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 RX_ER */
72
/* PB27 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 COL */
73
/* PB26 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 CRS */
74
/* PB25 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 TxD[3] */
75
/* PB24 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 TxD[2] */
76
/* PB23 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 TxD[1] */
77
/* PB22 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 TxD[0] */
78
/* PB21 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 RxD[0] */
79
/* PB20 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 RxD[1] */
80
/* PB19 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 RxD[2] */
81
/* PB18 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 RxD[3] */
82
/* PB17 */ { 0, 0, 0, 0, 0, 0 }, /* PB17 */
83
/* PB16 */ { 0, 0, 0, 0, 0, 0 }, /* PB16 */
84
/* PB15 */ { 1, 1, 0, 0, 0, 0 }, /* SCC2 RXD */
85
/* PB14 */ { 1, 1, 0, 0, 0, 0 }, /* SCC3 RXD */
86
/* PB13 */ { 0, 0, 0, 0, 0, 0 }, /* PB13 */
87
/* PB12 */ { 0, 0, 0, 0, 0, 0 }, /* PB12 */
88
/* PB11 */ { 0, 0, 0, 0, 0, 0 }, /* PB11 */
89
/* PB10 */ { 0, 0, 0, 0, 0, 0 }, /* PB10 */
90
/* PB9 */ { 0, 0, 0, 0, 0, 0 }, /* PB9 */
91
/* PB8 */ { 1, 1, 1, 1, 0, 0 }, /* SCC3 TXD */
92
/* PB7 */ { 0, 0, 0, 0, 0, 0 }, /* PB7 */
93
/* PB6 */ { 0, 0, 0, 0, 0, 0 }, /* PB6 */
94
/* PB5 */ { 0, 0, 0, 0, 0, 0 }, /* PB5 */
95
/* PB4 */ { 0, 0, 0, 0, 0, 0 }, /* PB4 */
96
/* PB3 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
97
/* PB2 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
98
/* PB1 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
99
/* PB0 */ { 0, 0, 0, 0, 0, 0 } /* pin doesn't exist */
103
{ /* conf ppar psor pdir podr pdat */
104
/* PC31 */ { 0, 0, 0, 1, 0, 0 }, /* PC31 */
105
/* PC30 */ { 0, 0, 0, 1, 0, 0 }, /* PC30 */
106
/* PC29 */ { 0, 1, 1, 0, 0, 0 }, /* SCC1 CTS */
107
/* PC28 */ { 0, 0, 0, 1, 0, 0 }, /* SCC2 CTS */
108
/* PC27 */ { 0, 0, 0, 1, 0, 0 }, /* PC27 */
109
/* PC26 */ { 0, 0, 0, 1, 0, 0 }, /* PC26 */
110
/* PC25 */ { 0, 0, 0, 1, 0, 0 }, /* PC25 */
111
/* PC24 */ { 0, 0, 0, 1, 0, 0 }, /* PC24 */
112
/* PC23 */ { 0, 1, 0, 1, 0, 0 }, /* PC23 */
113
/* PC22 */ { 1, 1, 0, 0, 0, 0 }, /* FCC1 TXCK */
114
/* PC21 */ { 1, 1, 0, 0, 0, 0 }, /* FCC1 RXCK */
115
/* PC20 */ { 1, 1, 0, 0, 0, 0 }, /* FCC1 TXCK(2) */
116
/* PC19 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 RXCK */
117
/* PC18 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 TXCK */
118
/* PC17 */ { 0, 0, 0, 1, 0, 0 }, /* PC17 */
119
/* PC16 */ { 0, 0, 0, 1, 0, 0 }, /* PC16 */
120
/* PC15 */ { 1, 1, 0, 1, 0, 0 }, /* SMC2 TXD */
121
/* PC14 */ { 0, 1, 0, 0, 0, 0 }, /* SCC1 DCD */
122
/* PC13 */ { 0, 0, 0, 1, 0, 0 }, /* PC13 */
123
/* PC12 */ { 0, 0, 0, 1, 0, 0 }, /* SCC2 DCD */
124
/* PC11 */ { 0, 0, 0, 1, 0, 0 }, /* SCC3 CTS */
125
/* PC10 */ { 0, 0, 0, 1, 0, 0 }, /* SCC3 DCD */
126
/* PC9 */ { 0, 0, 0, 1, 0, 0 }, /* SCC4 CTS */
127
/* PC8 */ { 0, 0, 0, 1, 0, 0 }, /* SCC4 DCD */
128
/* PC7 */ { 0, 0, 0, 1, 0, 0 }, /* PC7 */
129
/* PC6 */ { 0, 0, 0, 1, 0, 0 }, /* PC6 */
130
/* PC5 */ { 0, 0, 0, 1, 0, 0 }, /* PC5 */
131
/* PC4 */ { 0, 0, 0, 1, 0, 0 }, /* PC4 */
132
/* PC3 */ { 0, 0, 0, 1, 0, 0 }, /* PC3 */
133
/* PC2 */ { 0, 0, 0, 1, 0, 1 }, /* PC2 */
134
/* PC1 */ { 0, 0, 0, 1, 0, 0 }, /* PC1 */
135
/* PC0 */ { 0, 0, 0, 1, 0, 0 }, /* PC0 */
139
{ /* conf ppar psor pdir podr pdat */
140
/* PD31 */ { 1, 1, 0, 0, 0, 0 }, /* SCC1 RXD */
141
/* PD30 */ { 0, 1, 1, 1, 0, 0 }, /* PD30 */
142
/* PD29 */ { 0, 1, 0, 1, 0, 0 }, /* SCC1 RTS */
143
/* PD28 */ { 0, 0, 0, 1, 0, 0 }, /* PD28 */
144
/* PD27 */ { 0, 1, 0, 1, 0, 0 }, /* SCC2 RTS */
145
/* PD26 */ { 0, 0, 0, 1, 0, 0 }, /* PD26 */
146
/* PD25 */ { 0, 0, 0, 1, 0, 0 }, /* PD25 */
147
/* PD24 */ { 0, 0, 0, 1, 0, 0 }, /* PD24 */
148
/* PD23 */ { 0, 0, 0, 1, 0, 0 }, /* SCC3 RTS */
149
/* PD22 */ { 1, 1, 0, 0, 0, 0 }, /* SCC4 RXD */
150
/* PD21 */ { 1, 1, 0, 1, 0, 0 }, /* SCC4 TXD */
151
/* PD20 */ { 0, 0, 1, 1, 0, 0 }, /* SCC4 RTS */
152
/* PD19 */ { 0, 0, 0, 1, 0, 0 }, /* PD19 */
153
/* PD18 */ { 0, 0, 0, 1, 0, 0 }, /* PD18 */
154
/* PD17 */ { 0, 1, 0, 0, 0, 0 }, /* PD17 */
155
/* PD16 */ { 0, 1, 0, 1, 0, 0 }, /* PD16 */
156
#if defined(CONFIG_SYS_I2C_SOFT)
157
/* PD15 */ { 1, 0, 0, 1, 1, 1 }, /* I2C SDA */
158
/* PD14 */ { 1, 0, 0, 1, 1, 1 }, /* I2C SCL */
160
#if defined(CONFIG_HARD_I2C)
161
/* PD15 */ { 1, 1, 1, 0, 1, 0 }, /* I2C SDA */
162
/* PD14 */ { 1, 1, 1, 0, 1, 0 }, /* I2C SCL */
163
#else /* normal I/O port pins */
164
/* PD15 */ { 0, 1, 1, 0, 1, 0 }, /* I2C SDA */
165
/* PD14 */ { 0, 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 */ { 0, 1, 0, 1, 0, 0 }, /* PD9 */
173
/* PD8 */ { 0, 1, 0, 0, 0, 0 }, /* PD8 */
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 */ { 1, 1, 1, 0, 0, 0 }, /* SMC2 RXD */
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 */
185
/* ------------------------------------------------------------------------- */
187
/* Check Board Identity:
189
int checkboard (void)
191
puts ("Board: PM828\n");
195
/* ------------------------------------------------------------------------- */
198
/* Try SDRAM initialization with P/LSDMR=sdmr and ORx=orx
200
* This routine performs standard 8260 initialization sequence
201
* and calculates the available memory size. It may be called
202
* several times to try different SDRAM configurations on both
203
* 60x and local buses.
205
static long int try_init (volatile memctl8260_t * memctl, ulong sdmr,
206
ulong orx, volatile uchar * base)
208
volatile uchar c = 0xff;
209
volatile ulong cnt, val;
210
volatile ulong *addr;
211
volatile uint *sdmr_ptr;
212
volatile uint *orx_ptr;
214
ulong save[32]; /* to make test non-destructive */
217
/* We must be able to test a location outsize the maximum legal size
218
* to find out THAT we are outside; but this address still has to be
219
* mapped by the controller. That means, that the initial mapping has
220
* to be (at least) twice as large as the maximum expected size.
222
maxsize = (1 + (~orx | 0x7fff)) / 2;
224
sdmr_ptr = &memctl->memc_psdmr;
225
orx_ptr = &memctl->memc_or2;
230
* Quote from 8260 UM (10.4.2 SDRAM Power-On Initialization, 10-35):
232
* "At system reset, initialization software must set up the
233
* programmable parameters in the memory controller banks registers
234
* (ORx, BRx, P/LSDMR). After all memory parameters are configured,
235
* system software should execute the following initialization sequence
236
* for each SDRAM device.
238
* 1. Issue a PRECHARGE-ALL-BANKS command
239
* 2. Issue eight CBR REFRESH commands
240
* 3. Issue a MODE-SET command to initialize the mode register
242
* The initial commands are executed by setting P/LSDMR[OP] and
243
* accessing the SDRAM with a single-byte transaction."
245
* The appropriate BRx/ORx registers have already been set when we
246
* get here. The SDRAM can be accessed at the address CONFIG_SYS_SDRAM_BASE.
249
*sdmr_ptr = sdmr | PSDMR_OP_PREA;
252
*sdmr_ptr = sdmr | PSDMR_OP_CBRR;
253
for (i = 0; i < 8; i++)
256
*sdmr_ptr = sdmr | PSDMR_OP_MRW;
257
*(base + CONFIG_SYS_MRS_OFFS) = c; /* setting MR on address lines */
259
*sdmr_ptr = sdmr | PSDMR_OP_NORM | PSDMR_RFEN;
263
* Check memory range for valid RAM. A simple memory test determines
264
* the actually available RAM size between addresses `base' and
265
* `base + maxsize'. Some (not all) hardware errors are detected:
266
* - short between address lines
267
* - short between data lines
270
for (cnt = maxsize / sizeof (long); cnt > 0; cnt >>= 1) {
271
addr = (volatile ulong *) base + cnt; /* pointer arith! */
276
addr = (volatile ulong *) base;
280
if ((val = *addr) != 0) {
285
for (cnt = 1; cnt <= maxsize / sizeof (long); cnt <<= 1) {
286
addr = (volatile ulong *) base + cnt; /* pointer arith! */
290
/* Write the actual size to ORx
292
*orx_ptr = orx | ~(cnt * sizeof (long) - 1);
293
return (cnt * sizeof (long));
300
phys_size_t initdram (int board_type)
302
volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
303
volatile memctl8260_t *memctl = &immap->im_memctl;
305
#ifndef CONFIG_SYS_RAMBOOT
308
ulong psize = 32 * 1024 * 1024;
310
memctl->memc_psrt = CONFIG_SYS_PSRT;
311
memctl->memc_mptpr = CONFIG_SYS_MPTPR;
313
#ifndef CONFIG_SYS_RAMBOOT
314
size8 = try_init (memctl, CONFIG_SYS_PSDMR_8COL, CONFIG_SYS_OR2_8COL,
315
(uchar *) CONFIG_SYS_SDRAM_BASE);
316
size9 = try_init (memctl, CONFIG_SYS_PSDMR_9COL, CONFIG_SYS_OR2_9COL,
317
(uchar *) CONFIG_SYS_SDRAM_BASE);
321
printf ("(60x:9COL) ");
323
psize = try_init (memctl, CONFIG_SYS_PSDMR_8COL, CONFIG_SYS_OR2_8COL,
324
(uchar *) CONFIG_SYS_SDRAM_BASE);
325
printf ("(60x:8COL) ");
331
#if defined(CONFIG_CMD_DOC)
334
doc_probe (CONFIG_SYS_DOC_BASE);
339
struct pci_controller hose;
341
extern void pci_mpc8250_init(struct pci_controller *);
343
void pci_init_board(void)
345
pci_mpc8250_init(&hose);
349
int board_eth_init(bd_t *bis)
351
return pci_eth_init(bis);