summaryrefslogtreecommitdiff
path: root/board/freescale/mpc837xemds/mpc837xemds.c
blob: 85068923b7f313cfebfa8ad6eb3ac6dc1709b541 (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
/*
 * Copyright (C) 2007 Freescale Semiconductor, Inc.
 * Dave Liu <daveliu@freescale.com>
 *
 * CREDITS: Kim Phillips contribute to LIBFDT code
 *
 * 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.
 */

#include <common.h>
#include <i2c.h>
#include <asm/io.h>
#include <asm/fsl_serdes.h>
#include <spd_sdram.h>
#include <tsec.h>
#include <libfdt.h>
#include <fdt_support.h>
#include "pci.h"
#include "../common/pq-mds-pib.h"

int board_early_init_f(void)
{
	struct immap __iomem *im = (struct immap __iomem *)CONFIG_SYS_IMMR;
	u8 *bcsr = (u8 *)CONFIG_SYS_BCSR;

	/* Enable flash write */
	bcsr[0x9] &= ~0x04;
	/* Clear all of the interrupt of BCSR */
	bcsr[0xe] = 0xff;

#ifdef CONFIG_MMC
	/* Set SPI_SD, SER_SD, and IRQ4_WP so that SD signals go through */
	bcsr[0xc] |= 0x4c;

	/* Set proper bits in SICR to allow SD signals through */
	clrsetbits_be32(&im->sysconf.sicrl, SICRL_USB_B, SICRL_USB_B_SD);

	clrsetbits_be32(&im->sysconf.sicrh, (SICRH_GPIO2_E | SICRH_SPI),
			(SICRH_GPIO2_E_SD | SICRH_SPI_SD));

#endif

#ifdef CONFIG_FSL_SERDES
	immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
	u32 spridr = in_be32(&immr->sysconf.spridr);

	/* we check only part num, and don't look for CPU revisions */
	switch (PARTID_NO_E(spridr)) {
	case SPR_8377:
		fsl_setup_serdes(CONFIG_FSL_SERDES1, FSL_SERDES_PROTO_SATA,
				FSL_SERDES_CLK_100, FSL_SERDES_VDD_1V);
		break;
	case SPR_8378:
		fsl_setup_serdes(CONFIG_FSL_SERDES1, FSL_SERDES_PROTO_SGMII,
				FSL_SERDES_CLK_125, FSL_SERDES_VDD_1V);
		break;
	case SPR_8379:
		fsl_setup_serdes(CONFIG_FSL_SERDES1, FSL_SERDES_PROTO_SATA,
				FSL_SERDES_CLK_100, FSL_SERDES_VDD_1V);
		fsl_setup_serdes(CONFIG_FSL_SERDES2, FSL_SERDES_PROTO_SATA,
				FSL_SERDES_CLK_100, FSL_SERDES_VDD_1V);
		break;
	default:
		printf("serdes not configured: unknown CPU part number: "
				"%04x\n", spridr >> 16);
		break;
	}
#endif /* CONFIG_FSL_SERDES */
	return 0;
}

#if defined(CONFIG_TSEC1) || defined(CONFIG_TSEC2)
int board_eth_init(bd_t *bd)
{
	struct tsec_info_struct tsec_info[2];
	struct immap __iomem *im = (struct immap __iomem *)CONFIG_SYS_IMMR;
	u32 rcwh = in_be32(&im->reset.rcwh);
	u32 tsec_mode;
	int num = 0;

	/* New line after Net: */
	printf("\n");

#ifdef CONFIG_TSEC1
	SET_STD_TSEC_INFO(tsec_info[num], 1);

	printf(CONFIG_TSEC1_NAME ": ");

	tsec_mode = rcwh & HRCWH_TSEC1M_MASK;
	if (tsec_mode == HRCWH_TSEC1M_IN_RGMII) {
		printf("RGMII\n");
		/* this is default, no need to fixup */
	} else if (tsec_mode == HRCWH_TSEC1M_IN_SGMII) {
		printf("SGMII\n");
		tsec_info[num].phyaddr = TSEC1_PHY_ADDR_SGMII;
		tsec_info[num].flags = TSEC_GIGABIT;
	} else {
		printf("unsupported PHY type\n");
	}
	num++;
#endif
#ifdef CONFIG_TSEC2
	SET_STD_TSEC_INFO(tsec_info[num], 2);

	printf(CONFIG_TSEC2_NAME ": ");

	tsec_mode = rcwh & HRCWH_TSEC2M_MASK;
	if (tsec_mode == HRCWH_TSEC2M_IN_RGMII) {
		printf("RGMII\n");
		/* this is default, no need to fixup */
	} else if (tsec_mode == HRCWH_TSEC2M_IN_SGMII) {
		printf("SGMII\n");
		tsec_info[num].phyaddr = TSEC2_PHY_ADDR_SGMII;
		tsec_info[num].flags = TSEC_GIGABIT;
	} else {
		printf("unsupported PHY type\n");
	}
	num++;
#endif
	return tsec_eth_init(bd, tsec_info, num);
}

static void __ft_tsec_fixup(void *blob, bd_t *bd, const char *alias,
			    int phy_addr)
{
	const char *phy_type = "sgmii";
	const u32 *ph;
	int off;
	int err;

	off = fdt_path_offset(blob, alias);
	if (off < 0) {
		printf("WARNING: could not find %s alias: %s.\n", alias,
			fdt_strerror(off));
		return;
	}

	err = fdt_setprop(blob, off, "phy-connection-type", phy_type,
			  strlen(phy_type) + 1);
	if (err) {
		printf("WARNING: could not set phy-connection-type for %s: "
			"%s.\n", alias, fdt_strerror(err));
		return;
	}

	ph = (u32 *)fdt_getprop(blob, off, "phy-handle", 0);
	if (!ph) {
		printf("WARNING: could not get phy-handle for %s.\n",
			alias);
		return;
	}

	off = fdt_node_offset_by_phandle(blob, *ph);
	if (off < 0) {
		printf("WARNING: could not get phy node for %s: %s\n", alias,
			fdt_strerror(off));
		return;
	}

	phy_addr = cpu_to_fdt32(phy_addr);
	err = fdt_setprop(blob, off, "reg", &phy_addr, sizeof(phy_addr));
	if (err < 0) {
		printf("WARNING: could not set phy node's reg for %s: "
			"%s.\n", alias, fdt_strerror(err));
		return;
	}
}

static void ft_tsec_fixup(void *blob, bd_t *bd)
{
	struct immap __iomem *im = (struct immap __iomem *)CONFIG_SYS_IMMR;
	u32 rcwh = in_be32(&im->reset.rcwh);
	u32 tsec_mode;

#ifdef CONFIG_TSEC1
	tsec_mode = rcwh & HRCWH_TSEC1M_MASK;
	if (tsec_mode == HRCWH_TSEC1M_IN_SGMII)
		__ft_tsec_fixup(blob, bd, "ethernet0", TSEC1_PHY_ADDR_SGMII);
#endif

#ifdef CONFIG_TSEC2
	tsec_mode = rcwh & HRCWH_TSEC2M_MASK;
	if (tsec_mode == HRCWH_TSEC2M_IN_SGMII)
		__ft_tsec_fixup(blob, bd, "ethernet1", TSEC2_PHY_ADDR_SGMII);
#endif
}
#else
static inline void ft_tsec_fixup(void *blob, bd_t *bd) {}
#endif /* defined(CONFIG_TSEC1) || defined(CONFIG_TSEC2) */

int board_early_init_r(void)
{
#ifdef CONFIG_PQ_MDS_PIB
	pib_init();
#endif
	return 0;
}

#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
extern void ddr_enable_ecc(unsigned int dram_size);
#endif
int fixed_sdram(void);

phys_size_t initdram(int board_type)
{
	volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
	u32 msize = 0;

	if ((im->sysconf.immrbar & IMMRBAR_BASE_ADDR) != (u32) im)
		return -1;

#if defined(CONFIG_SPD_EEPROM)
	msize = spd_sdram();
#else
	msize = fixed_sdram();
#endif

#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
	/* Initialize DDR ECC byte */
	ddr_enable_ecc(msize * 1024 * 1024);
#endif

	/* return total bus DDR size(bytes) */
	return (msize * 1024 * 1024);
}

#if !defined(CONFIG_SPD_EEPROM)
/*************************************************************************
 *  fixed sdram init -- doesn't use serial presence detect.
 ************************************************************************/
int fixed_sdram(void)
{
	volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
	u32 msize = CONFIG_SYS_DDR_SIZE * 1024 * 1024;
	u32 msize_log2 = __ilog2(msize);

	im->sysconf.ddrlaw[0].bar = CONFIG_SYS_DDR_SDRAM_BASE & 0xfffff000;
	im->sysconf.ddrlaw[0].ar = LBLAWAR_EN | (msize_log2 - 1);

#if (CONFIG_SYS_DDR_SIZE != 512)
#warning Currenly any ddr size other than 512 is not supported
#endif
	im->sysconf.ddrcdr = CONFIG_SYS_DDRCDR_VALUE;
	udelay(50000);

	im->ddr.sdram_clk_cntl = CONFIG_SYS_DDR_SDRAM_CLK_CNTL;
	udelay(1000);

	im->ddr.csbnds[0].csbnds = CONFIG_SYS_DDR_CS0_BNDS;
	im->ddr.cs_config[0] = CONFIG_SYS_DDR_CS0_CONFIG;
	udelay(1000);

	im->ddr.timing_cfg_0 = CONFIG_SYS_DDR_TIMING_0;
	im->ddr.timing_cfg_1 = CONFIG_SYS_DDR_TIMING_1;
	im->ddr.timing_cfg_2 = CONFIG_SYS_DDR_TIMING_2;
	im->ddr.timing_cfg_3 = CONFIG_SYS_DDR_TIMING_3;
	im->ddr.sdram_cfg = CONFIG_SYS_DDR_SDRAM_CFG;
	im->ddr.sdram_cfg2 = CONFIG_SYS_DDR_SDRAM_CFG2;
	im->ddr.sdram_mode = CONFIG_SYS_DDR_MODE;
	im->ddr.sdram_mode2 = CONFIG_SYS_DDR_MODE2;
	im->ddr.sdram_interval = CONFIG_SYS_DDR_INTERVAL;
	__asm__ __volatile__("sync");
	udelay(1000);

	im->ddr.sdram_cfg |= SDRAM_CFG_MEM_EN;
	udelay(2000);
	return CONFIG_SYS_DDR_SIZE;
}
#endif /*!CONFIG_SYS_SPD_EEPROM */

int checkboard(void)
{
	puts("Board: Freescale MPC837xEMDS\n");
	return 0;
}

#ifdef CONFIG_PCI
int board_pci_host_broken(void)
{
	struct immap __iomem *im = (struct immap __iomem *)CONFIG_SYS_IMMR;
	const u32 rcw_mask = HRCWH_PCI1_ARBITER_ENABLE | HRCWH_PCI_HOST;
	const char *pci_ea = getenv("pci_external_arbiter");

	/* It's always OK in case of external arbiter. */
	if (pci_ea && !strcmp(pci_ea, "yes"))
		return 0;

	if ((in_be32(&im->reset.rcwh) & rcw_mask) != rcw_mask)
		return 1;

	return 0;
}

static void ft_pci_fixup(void *blob, bd_t *bd)
{
	const char *status = "broken (no arbiter)";
	int off;
	int err;

	off = fdt_path_offset(blob, "pci0");
	if (off < 0) {
		printf("WARNING: could not find pci0 alias: %s.\n",
			fdt_strerror(off));
		return;
	}

	err = fdt_setprop(blob, off, "status", status, strlen(status) + 1);
	if (err) {
		printf("WARNING: could not set status for pci0: %s.\n",
			fdt_strerror(err));
		return;
	}
}
#endif

#if defined(CONFIG_OF_BOARD_SETUP)
void ft_board_setup(void *blob, bd_t *bd)
{
	ft_cpu_setup(blob, bd);
	ft_tsec_fixup(blob, bd);
	fdt_fixup_dr_usb(blob, bd);
#ifdef CONFIG_PCI
	ft_pci_setup(blob, bd);
	if (board_pci_host_broken())
		ft_pci_fixup(blob, bd);
	ft_pcie_fixup(blob, bd);
#endif
}
#endif /* CONFIG_OF_BOARD_SETUP */