summaryrefslogtreecommitdiff
path: root/board/freescale/mpc8641hpcn/mpc8641hpcn.c
blob: d9e538b868f8e4ec8f112650ccafeed7bcc88cb0 (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
// SPDX-License-Identifier: GPL-2.0+
/*
 * Copyright 2006, 2007, 2010-2011 Freescale Semiconductor.
 */

#include <common.h>
#include <init.h>
#include <pci.h>
#include <asm/processor.h>
#include <asm/immap_86xx.h>
#include <asm/fsl_pci.h>
#include <fsl_ddr_sdram.h>
#include <asm/fsl_serdes.h>
#include <asm/io.h>
#include <linux/libfdt.h>
#include <fdt_support.h>
#include <netdev.h>

DECLARE_GLOBAL_DATA_PTR;

phys_size_t fixed_sdram(void);

int checkboard(void)
{
	u8 vboot;
	u8 *pixis_base = (u8 *)PIXIS_BASE;

	printf ("Board: MPC8641HPCN, Sys ID: 0x%02x, "
		"Sys Ver: 0x%02x, FPGA Ver: 0x%02x, ",
		in_8(pixis_base + PIXIS_ID), in_8(pixis_base + PIXIS_VER),
		in_8(pixis_base + PIXIS_PVER));

	vboot = in_8(pixis_base + PIXIS_VBOOT);
	if (vboot & PIXIS_VBOOT_FMAP)
		printf ("vBank: %d\n", ((vboot & PIXIS_VBOOT_FBANK) >> 6));
	else
		puts ("Promjet\n");

	return 0;
}

int dram_init(void)
{
	phys_size_t dram_size = 0;

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

	setup_ddr_bat(dram_size);

	debug("    DDR: ");
	gd->ram_size = dram_size;

	return 0;
}


#if !defined(CONFIG_SPD_EEPROM)
/*
 * Fixed sdram init -- doesn't use serial presence detect.
 */
phys_size_t
fixed_sdram(void)
{
#if !defined(CONFIG_SYS_RAMBOOT)
	volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
	struct ccsr_ddr __iomem *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 = 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 = (CONFIG_SYS_DDR_CONTROL | 0x20000000);
#else
	ddr->sdram_cfg = 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) */

void pci_init_board(void)
{
	fsl_pcie_init_board(0);

#ifdef CONFIG_PCIE1
		/*
		 * Activate ULI1575 legacy chip by performing a fake
		 * memory access.  Needed to make ULI RTC work.
		 */
		in_be32((unsigned *) ((char *)(CONFIG_SYS_PCIE1_MEM_VIRT
				       + CONFIG_SYS_PCIE1_MEM_SIZE - 0x1000000)));
#endif /* CONFIG_PCIE1 */
}


#if defined(CONFIG_OF_BOARD_SETUP)
int ft_board_setup(void *blob, bd_t *bd)
{
	int off;
	u64 *tmp;
	int addrcells;

	ft_cpu_setup(blob, bd);

	FT_FSL_PCI_SETUP;

	/*
	 * Warn if it looks like the device tree doesn't match u-boot.
	 * This is just an estimation, based on the location of CCSR,
	 * which is defined by the "reg" property in the soc node.
	 */
	off = fdt_path_offset(blob, "/soc8641");
	addrcells = fdt_address_cells(blob, 0);
	tmp = (u64 *)fdt_getprop(blob, off, "reg", NULL);

	if (tmp) {
		u64 addr;

		if (addrcells == 1)
			addr = *(u32 *)tmp;
		else
			addr = *tmp;

		if (addr != CONFIG_SYS_CCSRBAR_PHYS)
			printf("WARNING: The CCSRBAR address in your .dts "
			       "does not match the address of the CCSR "
			       "in u-boot.  This means your .dts might "
			       "be old.\n");
	}

	return 0;
}
#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;
	u8 *pixis_base = (u8 *)PIXIS_BASE;

	go_bit = in_8(pixis_base + PIXIS_VCTL);
	go_bit &= 0x01;

	rd_clks = in_8(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 = in_8(pixis_base + PIXIS_AUX);
		else
			i = in_8(pixis_base + PIXIS_SPD);
	} else {
		i = in_8(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);
}

void board_reset(void)
{
	u8 *pixis_base = (u8 *)PIXIS_BASE;

	out_8(pixis_base + PIXIS_RST, 0);

	while (1)
		;
}