aboutsummaryrefslogtreecommitdiff
path: root/board/freescale/mpc8641hpcn/mpc8641hpcn.c
blob: 0069b9cd471107aef89f1268823b19ec6d044ef7 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
/*
 * Copyright 2006, 2007 Freescale Semiconductor.
 *
 * See file CREDITS for list of people who contributed to this
 * project.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of
 * the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 * MA 02111-1307 USA
 */

#include <common.h>
#include <pci.h>
#include <asm/processor.h>
#include <asm/immap_86xx.h>
#include <asm/immap_fsl_pci.h>
#include <asm/fsl_ddr_sdram.h>
#include <asm/io.h>
#include <libfdt.h>
#include <fdt_support.h>
#include <netdev.h>

#include "../common/pixis.h"

long int fixed_sdram(void);

int board_early_init_f(void)
{
	return 0;
}

int checkboard(void)
{
	printf ("Board: MPC8641HPCN, System ID: 0x%02x, "
		"System Version: 0x%02x, FPGA Version: 0x%02x\n",
		in8(PIXIS_BASE + PIXIS_ID), in8(PIXIS_BASE + PIXIS_VER),
		in8(PIXIS_BASE + PIXIS_PVER));
	return 0;
}


phys_size_t
initdram(int board_type)
{
	long dram_size = 0;

#if defined(CONFIG_SPD_EEPROM)
	dram_size = fsl_ddr_sdram();
#else
	dram_size = fixed_sdram();
#endif

#if defined(CONFIG_SYS_RAMBOOT)
	puts("    DDR: ");
	return dram_size;
#endif

	puts("    DDR: ");
	return dram_size;
}


#if !defined(CONFIG_SPD_EEPROM)
/*
 * Fixed sdram init -- doesn't use serial presence detect.
 */
long int
fixed_sdram(void)
{
#if !defined(CONFIG_SYS_RAMBOOT)
	volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
	volatile ccsr_ddr_t *ddr = &immap->im_ddr1;

	ddr->cs0_bnds = CONFIG_SYS_DDR_CS0_BNDS;
	ddr->cs0_config = CONFIG_SYS_DDR_CS0_CONFIG;
	ddr->timing_cfg_3 = CONFIG_SYS_DDR_TIMING_3;
	ddr->timing_cfg_0 = CONFIG_SYS_DDR_TIMING_0;
	ddr->timing_cfg_1 = CONFIG_SYS_DDR_TIMING_1;
	ddr->timing_cfg_2 = CONFIG_SYS_DDR_TIMING_2;
	ddr->sdram_mode_1 = CONFIG_SYS_DDR_MODE_1;
	ddr->sdram_mode_2 = CONFIG_SYS_DDR_MODE_2;
	ddr->sdram_interval = CONFIG_SYS_DDR_INTERVAL;
	ddr->sdram_data_init = CONFIG_SYS_DDR_DATA_INIT;
	ddr->sdram_clk_cntl = CONFIG_SYS_DDR_CLK_CTRL;
	ddr->sdram_ocd_cntl = CONFIG_SYS_DDR_OCD_CTRL;
	ddr->sdram_ocd_status = CONFIG_SYS_DDR_OCD_STATUS;

#if defined (CONFIG_DDR_ECC)
	ddr->err_disable = 0x0000008D;
	ddr->err_sbe = 0x00ff0000;
#endif
	asm("sync;isync");

	udelay(500);

#if defined (CONFIG_DDR_ECC)
	/* Enable ECC checking */
	ddr->sdram_cfg_1 = (CONFIG_SYS_DDR_CONTROL | 0x20000000);
#else
	ddr->sdram_cfg_1 = CONFIG_SYS_DDR_CONTROL;
	ddr->sdram_cfg_2 = CONFIG_SYS_DDR_CONTROL2;
#endif
	asm("sync; isync");

	udelay(500);
#endif
	return CONFIG_SYS_SDRAM_SIZE * 1024 * 1024;
}
#endif	/* !defined(CONFIG_SPD_EEPROM) */


#if defined(CONFIG_PCI)
/*
 * Initialize PCI Devices, report devices found.
 */

#ifndef CONFIG_PCI_PNP
static struct pci_config_table pci_fsl86xxads_config_table[] = {
	{PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
	 PCI_IDSEL_NUMBER, PCI_ANY_ID,
	 pci_cfgfunc_config_device, {PCI_ENET0_IOADDR,
				     PCI_ENET0_MEMADDR,
				     PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER}},
	{}
};
#endif


static struct pci_controller pci1_hose = {
#ifndef CONFIG_PCI_PNP
	config_table:pci_mpc86xxcts_config_table
#endif
};
#endif /* CONFIG_PCI */

#ifdef CONFIG_PCI2
static struct pci_controller pci2_hose;
#endif	/* CONFIG_PCI2 */

int first_free_busno = 0;

extern int fsl_pci_setup_inbound_windows(struct pci_region *r);
extern void fsl_pci_init(struct pci_controller *hose);

void pci_init_board(void)
{
	volatile immap_t *immap = (immap_t *) CONFIG_SYS_CCSRBAR;
	volatile ccsr_gur_t *gur = &immap->im_gur;
	uint devdisr = gur->devdisr;
	uint io_sel = (gur->pordevsr & MPC8641_PORDEVSR_IO_SEL)
		>> MPC8641_PORDEVSR_IO_SEL_SHIFT;

#ifdef CONFIG_PCI1
{
	volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CONFIG_SYS_PCI1_ADDR;
	struct pci_controller *hose = &pci1_hose;
	struct pci_region *r = hose->regions;

#ifdef DEBUG
	uint host1_agent = (gur->porbmsr & MPC8641_PORBMSR_HA)
		>> MPC8641_PORBMSR_HA_SHIFT;
	uint pex1_agent = (host1_agent == 0) || (host1_agent == 1);
#endif
	if ((io_sel == 2 || io_sel == 3 || io_sel == 5
	     || io_sel == 6 || io_sel == 7 || io_sel == 0xF)
	    && !(devdisr & MPC86xx_DEVDISR_PCIEX1)) {
		debug("PCI-EXPRESS 1: %s \n", pex1_agent ? "Agent" : "Host");
		debug("0x%08x=0x%08x ", &pci->pme_msg_det, pci->pme_msg_det);
		if (pci->pme_msg_det) {
			pci->pme_msg_det = 0xffffffff;
			debug(" with errors.  Clearing.  Now 0x%08x",
			      pci->pme_msg_det);
		}
		debug("\n");

		/* inbound */
		r += fsl_pci_setup_inbound_windows(r);

		/* outbound memory */
		pci_set_region(r++,
			       CONFIG_SYS_PCI1_MEM_BASE,
			       CONFIG_SYS_PCI1_MEM_PHYS,
			       CONFIG_SYS_PCI1_MEM_SIZE,
			       PCI_REGION_MEM);

		/* outbound io */
		pci_set_region(r++,
			       CONFIG_SYS_PCI1_IO_BASE,
			       CONFIG_SYS_PCI1_IO_PHYS,
			       CONFIG_SYS_PCI1_IO_SIZE,
			       PCI_REGION_IO);

		hose->region_count = r - hose->regions;

		hose->first_busno=first_free_busno;
		pci_setup_indirect(hose, (int) &pci->cfg_addr, (int) &pci->cfg_data);

		fsl_pci_init(hose);

		first_free_busno=hose->last_busno+1;
		printf ("    PCI-EXPRESS 1 on bus %02x - %02x\n",
			hose->first_busno,hose->last_busno);

		/*
		 * Activate ULI1575 legacy chip by performing a fake
		 * memory access.  Needed to make ULI RTC work.
		 */
		in_be32((unsigned *) ((char *)(CONFIG_SYS_PCI1_MEM_BASE
				       + CONFIG_SYS_PCI1_MEM_SIZE - 0x1000000)));

	} else {
		puts("PCI-EXPRESS 1: Disabled\n");
	}
}
#else
	puts("PCI-EXPRESS1: Disabled\n");
#endif /* CONFIG_PCI1 */

#ifdef CONFIG_PCI2
{
	volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CONFIG_SYS_PCI2_ADDR;
	struct pci_controller *hose = &pci2_hose;
	struct pci_region *r = hose->regions;

	/* inbound */
	r += fsl_pci_setup_inbound_windows(r);

	/* outbound memory */
	pci_set_region(r++,
		       CONFIG_SYS_PCI2_MEM_BASE,
		       CONFIG_SYS_PCI2_MEM_PHYS,
		       CONFIG_SYS_PCI2_MEM_SIZE,
		       PCI_REGION_MEM);

	/* outbound io */
	pci_set_region(r++,
		       CONFIG_SYS_PCI2_IO_BASE,
		       CONFIG_SYS_PCI2_IO_PHYS,
		       CONFIG_SYS_PCI2_IO_SIZE,
		       PCI_REGION_IO);

	hose->region_count = r - hose->regions;

	hose->first_busno=first_free_busno;
	pci_setup_indirect(hose, (int) &pci->cfg_addr, (int) &pci->cfg_data);

	fsl_pci_init(hose);

	first_free_busno=hose->last_busno+1;
	printf ("    PCI-EXPRESS 2 on bus %02x - %02x\n",
		hose->first_busno,hose->last_busno);
}
#else
	puts("PCI-EXPRESS 2: Disabled\n");
#endif /* CONFIG_PCI2 */

}


#if defined(CONFIG_OF_BOARD_SETUP)
extern void ft_fsl_pci_setup(void *blob, const char *pci_alias,
                        struct pci_controller *hose);

void
ft_board_setup(void *blob, bd_t *bd)
{
	ft_cpu_setup(blob, bd);

#ifdef CONFIG_PCI1
	ft_fsl_pci_setup(blob, "pci0", &pci1_hose);
#endif
#ifdef CONFIG_PCI2
	ft_fsl_pci_setup(blob, "pci1", &pci2_hose);
#endif
}
#endif


/*
 * get_board_sys_clk
 *      Reads the FPGA on board for CONFIG_SYS_CLK_FREQ
 */

unsigned long
get_board_sys_clk(ulong dummy)
{
	u8 i, go_bit, rd_clks;
	ulong val = 0;

	go_bit = in8(PIXIS_BASE + PIXIS_VCTL);
	go_bit &= 0x01;

	rd_clks = in8(PIXIS_BASE + PIXIS_VCFGEN0);
	rd_clks &= 0x1C;

	/*
	 * Only if both go bit and the SCLK bit in VCFGEN0 are set
	 * should we be using the AUX register. Remember, we also set the
	 * GO bit to boot from the alternate bank on the on-board flash
	 */

	if (go_bit) {
		if (rd_clks == 0x1c)
			i = in8(PIXIS_BASE + PIXIS_AUX);
		else
			i = in8(PIXIS_BASE + PIXIS_SPD);
	} else {
		i = in8(PIXIS_BASE + PIXIS_SPD);
	}

	i &= 0x07;

	switch (i) {
	case 0:
		val = 33000000;
		break;
	case 1:
		val = 40000000;
		break;
	case 2:
		val = 50000000;
		break;
	case 3:
		val = 66000000;
		break;
	case 4:
		val = 83000000;
		break;
	case 5:
		val = 100000000;
		break;
	case 6:
		val = 134000000;
		break;
	case 7:
		val = 166000000;
		break;
	}

	return val;
}

int board_eth_init(bd_t *bis)
{
	/* Initialize TSECs */
	cpu_eth_init(bis);
	return pci_eth_init(bis);
}