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
|
/*
*
* (c) 2009 Emcraft Systems, Ilya Yanok <yanok@emcraft.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.
*
* 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 <netdev.h>
#include <asm/arch/mx31.h>
#include <asm/arch/mx31-regs.h>
#include <nand.h>
#include "qong_fpga.h"
DECLARE_GLOBAL_DATA_PTR;
int dram_init (void)
{
gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
gd->bd->bi_dram[0].size = get_ram_size((volatile void *)PHYS_SDRAM_1,
PHYS_SDRAM_1_SIZE);
return 0;
}
static void qong_fpga_reset(void)
{
mx31_gpio_set(QONG_FPGA_RST_PIN, 0);
udelay(30);
mx31_gpio_set(QONG_FPGA_RST_PIN, 1);
udelay(300);
}
int board_init (void)
{
/* Chip selects */
/* CS0: Nor Flash #0 - it must be init'ed when executing from DDR */
/* Assumptions: HCLK = 133 MHz, tACC = 130ns */
__REG(CSCR_U(0)) = ((0 << 31) | /* SP */
(0 << 30) | /* WP */
(0 << 28) | /* BCD */
(0 << 24) | /* BCS */
(0 << 22) | /* PSZ */
(0 << 21) | /* PME */
(0 << 20) | /* SYNC */
(0 << 16) | /* DOL */
(3 << 14) | /* CNC */
(21 << 8) | /* WSC */
(0 << 7) | /* EW */
(0 << 4) | /* WWS */
(6 << 0) /* EDC */
);
__REG(CSCR_L(0)) = ((2 << 28) | /* OEA */
(1 << 24) | /* OEN */
(3 << 20) | /* EBWA */
(3 << 16) | /* EBWN */
(1 << 12) | /* CSA */
(1 << 11) | /* EBC */
(5 << 8) | /* DSZ */
(1 << 4) | /* CSN */
(0 << 3) | /* PSR */
(0 << 2) | /* CRE */
(0 << 1) | /* WRAP */
(1 << 0) /* CSEN */
);
__REG(CSCR_A(0)) = ((2 << 28) | /* EBRA */
(1 << 24) | /* EBRN */
(2 << 20) | /* RWA */
(2 << 16) | /* RWN */
(0 << 15) | /* MUM */
(0 << 13) | /* LAH */
(2 << 10) | /* LBN */
(0 << 8) | /* LBA */
(0 << 6) | /* DWW */
(0 << 4) | /* DCT */
(0 << 3) | /* WWU */
(0 << 2) | /* AGE */
(0 << 1) | /* CNC2 */
(0 << 0) /* FCE */
);
#ifdef CONFIG_QONG_FPGA
/* CS1: FPGA/Network Controller/GPIO */
/* 16-bit, no DTACK */
__REG(CSCR_U(1)) = 0x00000A01;
__REG(CSCR_L(1)) = 0x20040501;
__REG(CSCR_A(1)) = 0x04020C00;
/* setup pins for FPGA */
mx31_gpio_mux(IOMUX_MODE(0x76, MUX_CTL_GPIO));
mx31_gpio_mux(IOMUX_MODE(0x7e, MUX_CTL_GPIO));
mx31_gpio_mux(IOMUX_MODE(0x91, MUX_CTL_OUT_FUNC | MUX_CTL_IN_GPIO));
mx31_gpio_mux(IOMUX_MODE(0x92, MUX_CTL_GPIO));
mx31_gpio_mux(IOMUX_MODE(0x93, MUX_CTL_GPIO));
/* FPGA reset Pin */
/* rstn = 0 */
mx31_gpio_set(QONG_FPGA_RST_PIN, 0);
mx31_gpio_direction(QONG_FPGA_RST_PIN, MX31_GPIO_DIRECTION_OUT);
/* set interrupt pin as input */
mx31_gpio_direction(QONG_FPGA_IRQ_PIN, MX31_GPIO_DIRECTION_IN);
#endif
/* setup pins for UART1 */
mx31_gpio_mux(MUX_RXD1__UART1_RXD_MUX);
mx31_gpio_mux(MUX_TXD1__UART1_TXD_MUX);
mx31_gpio_mux(MUX_RTS1__UART1_RTS_B);
mx31_gpio_mux(MUX_CTS1__UART1_CTS_B);
/* board id for linux */
gd->bd->bi_arch_number = MACH_TYPE_QONG;
gd->bd->bi_boot_params = (0x80000100); /* adress of boot parameters */
return 0;
}
int checkboard (void)
{
printf("Board: DAVE/DENX QongEVB-LITE\n");
return 0;
}
int misc_init_r (void)
{
#ifdef CONFIG_QONG_FPGA
u32 tmp;
tmp = *(volatile u32*)QONG_FPGA_CTRL_VERSION;
printf("FPGA: ");
printf("version register = %u.%u.%u\n",
(tmp & 0xF000) >> 12, (tmp & 0x0F00) >> 8, tmp & 0x00FF);
#endif
return 0;
}
int board_eth_init(bd_t *bis)
{
#if defined(CONFIG_QONG_FPGA) && defined(CONFIG_DNET)
return dnet_eth_initialize(0, (void *)CONFIG_DNET_BASE, -1);
#else
return 0;
#endif
}
#if defined(CONFIG_QONG_FPGA) && defined(CONFIG_NAND_PLAT)
static void board_nand_setup(void)
{
/* CS3: NAND 8-bit */
__REG(CSCR_U(3)) = 0x00004f00;
__REG(CSCR_L(3)) = 0x20013b31;
__REG(CSCR_A(3)) = 0x00020800;
__REG(IOMUXC_GPR) |= 1 << 13;
mx31_gpio_mux(IOMUX_MODE(MUX_CTL_NFC_WP, MUX_CTL_IN_GPIO));
mx31_gpio_mux(IOMUX_MODE(MUX_CTL_NFC_CE, MUX_CTL_IN_GPIO));
mx31_gpio_mux(IOMUX_MODE(MUX_CTL_NFC_RB, MUX_CTL_IN_GPIO));
/* Make sure to reset the fpga else you cannot access NAND */
qong_fpga_reset();
/* Enable NAND flash */
mx31_gpio_set(15, 1);
mx31_gpio_set(14, 1);
mx31_gpio_direction(15, MX31_GPIO_DIRECTION_OUT);
mx31_gpio_direction(16, MX31_GPIO_DIRECTION_IN);
mx31_gpio_direction(14, MX31_GPIO_DIRECTION_IN);
mx31_gpio_set(15, 0);
}
int qong_nand_rdy(void *chip)
{
udelay(1);
return mx31_gpio_get(16);
}
void qong_nand_select_chip(struct mtd_info *mtd, int chip)
{
if (chip >= 0)
mx31_gpio_set(15, 0);
else
mx31_gpio_set(15, 1);
}
void qong_nand_plat_init(void *chip)
{
struct nand_chip *nand = (struct nand_chip *)chip;
nand->chip_delay = 20;
nand->select_chip = qong_nand_select_chip;
nand->options &= ~NAND_BUSWIDTH_16;
board_nand_setup();
}
#endif
|
