summaryrefslogtreecommitdiff
path: root/board/mpc832xemds/mpc832xemds.c
blob: f70783e73ab3b0e9b72e4d160c829e4c58addaba (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
/*
 * Copyright (C) 2006 Freescale Semiconductor, Inc.
 *
 * Dave Liu <daveliu@freescale.com>
 *
 * 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.
 */

#include <common.h>
#include <ioports.h>
#include <mpc83xx.h>
#include <i2c.h>
#include <spd.h>
#include <miiphy.h>
#include <command.h>
#if defined(CONFIG_PCI)
#include <pci.h>
#endif
#if defined(CONFIG_SPD_EEPROM)
#include <spd_sdram.h>
#else
#include <asm/mmu.h>
#endif
#if defined(CONFIG_OF_FLAT_TREE)
#include <ft_build.h>
#elif defined(CONFIG_OF_LIBFDT)
#include <libfdt.h>
#endif

const qe_iop_conf_t qe_iop_conf_tab[] = {
	/* ETH3 */
	{1,  0, 1, 0, 1}, /* TxD0 */
	{1,  1, 1, 0, 1}, /* TxD1 */
	{1,  2, 1, 0, 1}, /* TxD2 */
	{1,  3, 1, 0, 1}, /* TxD3 */
	{1,  9, 1, 0, 1}, /* TxER */
	{1, 12, 1, 0, 1}, /* TxEN */
	{3, 24, 2, 0, 1}, /* TxCLK->CLK10 */

	{1,  4, 2, 0, 1}, /* RxD0 */
	{1,  5, 2, 0, 1}, /* RxD1 */
	{1,  6, 2, 0, 1}, /* RxD2 */
	{1,  7, 2, 0, 1}, /* RxD3 */
	{1,  8, 2, 0, 1}, /* RxER */
	{1, 10, 2, 0, 1}, /* RxDV */
	{0, 13, 2, 0, 1}, /* RxCLK->CLK9 */
	{1, 11, 2, 0, 1}, /* COL */
	{1, 13, 2, 0, 1}, /* CRS */

	/* ETH4 */
	{1, 18, 1, 0, 1}, /* TxD0 */
	{1, 19, 1, 0, 1}, /* TxD1 */
	{1, 20, 1, 0, 1}, /* TxD2 */
	{1, 21, 1, 0, 1}, /* TxD3 */
	{1, 27, 1, 0, 1}, /* TxER */
	{1, 30, 1, 0, 1}, /* TxEN */
	{3,  6, 2, 0, 1}, /* TxCLK->CLK8 */

	{1, 22, 2, 0, 1}, /* RxD0 */
	{1, 23, 2, 0, 1}, /* RxD1 */
	{1, 24, 2, 0, 1}, /* RxD2 */
	{1, 25, 2, 0, 1}, /* RxD3 */
	{1, 26, 1, 0, 1}, /* RxER */
	{1, 28, 2, 0, 1}, /* Rx_DV */
	{3, 31, 2, 0, 1}, /* RxCLK->CLK7 */
	{1, 29, 2, 0, 1}, /* COL */
	{1, 31, 2, 0, 1}, /* CRS */

	{3,  4, 3, 0, 2}, /* MDIO */
	{3,  5, 1, 0, 2}, /* MDC */

	{0,  0, 0, 0, QE_IOP_TAB_END}, /* END of table */
};

int board_early_init_f(void)
{
	volatile u8 *bcsr = (volatile u8 *)CFG_BCSR;

	/* Enable flash write */
	bcsr[9] &= ~0x08;

	return 0;
}

int fixed_sdram(void);

long int initdram(int board_type)
{
	volatile immap_t *im = (immap_t *) CFG_IMMR;
	u32 msize = 0;

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

	/* DDR SDRAM - Main SODIMM */
	im->sysconf.ddrlaw[0].bar = CFG_DDR_BASE & LAWBAR_BAR;

	msize = fixed_sdram();

	puts("\n   DDR RAM: ");

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

/*************************************************************************
 *  fixed sdram init -- doesn't use serial presence detect.
 ************************************************************************/
int fixed_sdram(void)
{
	volatile immap_t *im = (immap_t *) CFG_IMMR;
	u32 msize = 0;
	u32 ddr_size;
	u32 ddr_size_log2;

	msize = CFG_DDR_SIZE;
	for (ddr_size = msize << 20, ddr_size_log2 = 0;
	     (ddr_size > 1); ddr_size = ddr_size >> 1, ddr_size_log2++) {
		if (ddr_size & 1) {
			return -1;
		}
	}
	im->sysconf.ddrlaw[0].ar =
	    LAWAR_EN | ((ddr_size_log2 - 1) & LAWAR_SIZE);
#if (CFG_DDR_SIZE != 128)
#warning Currenly any ddr size other than 128 is not supported
#endif
	im->ddr.sdram_clk_cntl = CFG_DDR_CLK_CNTL;
	im->ddr.csbnds[0].csbnds = CFG_DDR_CS0_BNDS;
	im->ddr.cs_config[0] = CFG_DDR_CS0_CONFIG;
	im->ddr.timing_cfg_0 = CFG_DDR_TIMING_0;
	im->ddr.timing_cfg_1 = CFG_DDR_TIMING_1;
	im->ddr.timing_cfg_2 = CFG_DDR_TIMING_2;
	im->ddr.timing_cfg_3 = CFG_DDR_TIMING_3;
	im->ddr.sdram_cfg = CFG_DDR_SDRAM_CFG;
	im->ddr.sdram_cfg2 = CFG_DDR_SDRAM_CFG2;
	im->ddr.sdram_mode = CFG_DDR_MODE;
	im->ddr.sdram_mode2 = CFG_DDR_MODE2;
	im->ddr.sdram_interval = CFG_DDR_INTERVAL;
	__asm__ __volatile__ ("sync");
	udelay(200);

	im->ddr.sdram_cfg |= SDRAM_CFG_MEM_EN;
	__asm__ __volatile__ ("sync");
	return msize;
}

int checkboard(void)
{
	puts("Board: Freescale MPC832XEMDS\n");
	return 0;
}

#if defined(CONFIG_OF_BOARD_SETUP)
void ft_board_setup(void *blob, bd_t *bd)
{
#if defined(CONFIG_OF_FLAT_TREE)
	u32 *p;
	int len;

	p = ft_get_prop(blob, "/memory/reg", &len);
	if (p != NULL) {
		*p++ = cpu_to_be32(bd->bi_memstart);
		*p = cpu_to_be32(bd->bi_memsize);
	}
#endif
	ft_cpu_setup(blob, bd);
#ifdef CONFIG_PCI
	ft_pci_setup(blob, bd);
#endif
}
#endif