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Merge branch 'master' of git://git.denx.de/u-boot-blackfin
[karo-tx-uboot.git] / board / davedenx / qong / qong.c
1 /*
2  *
3  * (c) 2009 Emcraft Systems, Ilya Yanok <yanok@emcraft.com>
4  *
5  * See file CREDITS for list of people who contributed to this
6  * project.
7  *
8  * This program is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU General Public License as
10  * published by the Free Software Foundation; either version 2 of
11  * the License, or (at your option) any later version.
12  *
13  * This program is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16  * GNU General Public License for more details.
17  *
18  * You should have received a copy of the GNU General Public License
19  * along with this program; if not, write to the Free Software
20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
21  * MA 02111-1307 USA
22  */
23
24 #include <common.h>
25 #include <netdev.h>
26 #include <asm/arch/mx31.h>
27 #include <asm/arch/mx31-regs.h>
28 #include "qong_fpga.h"
29
30 DECLARE_GLOBAL_DATA_PTR;
31
32 int dram_init (void)
33 {
34         gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
35         gd->bd->bi_dram[0].size = get_ram_size((volatile void *)PHYS_SDRAM_1,
36                         PHYS_SDRAM_1_SIZE);
37
38         return 0;
39 }
40
41 int board_init (void)
42 {
43         /* Chip selects */
44         /* CS0: Nor Flash #0 - it must be init'ed when executing from DDR */
45         /* Assumptions: HCLK = 133 MHz, tACC = 130ns */
46         __REG(CSCR_U(0)) = ((0 << 31)   | /* SP */
47                                                 (0 << 30)       | /* WP */
48                                                 (0 << 28)       | /* BCD */
49                                                 (0 << 24)       | /* BCS */
50                                                 (0 << 22)       | /* PSZ */
51                                                 (0 << 21)       | /* PME */
52                                                 (0 << 20)       | /* SYNC */
53                                                 (0 << 16)       | /* DOL */
54                                                 (3 << 14)       | /* CNC */
55                                                 (21 << 8)       | /* WSC */
56                                                 (0 << 7)        | /* EW */
57                                                 (0 << 4)        | /* WWS */
58                                                 (6 << 0)          /* EDC */
59                                            );
60
61         __REG(CSCR_L(0)) = ((2 << 28)   | /* OEA */
62                                                 (1 << 24)       | /* OEN */
63                                                 (3 << 20)       | /* EBWA */
64                                                 (3 << 16)       | /* EBWN */
65                                                 (1 << 12)       | /* CSA */
66                                                 (1 << 11)       | /* EBC */
67                                                 (5 << 8)        | /* DSZ */
68                                                 (1 << 4)        | /* CSN */
69                                                 (0 << 3)        | /* PSR */
70                                                 (0 << 2)        | /* CRE */
71                                                 (0 << 1)        | /* WRAP */
72                                                 (1 << 0)          /* CSEN */
73                                            );
74
75         __REG(CSCR_A(0)) = ((2 << 28)   | /* EBRA */
76                                                 (1 << 24)       | /* EBRN */
77                                                 (2 << 20)       | /* RWA */
78                                                 (2 << 16)       | /* RWN */
79                                                 (0 << 15)       | /* MUM */
80                                                 (0 << 13)       | /* LAH */
81                                                 (2 << 10)       | /* LBN */
82                                                 (0 << 8)        | /* LBA */
83                                                 (0 << 6)        | /* DWW */
84                                                 (0 << 4)        | /* DCT */
85                                                 (0 << 3)        | /* WWU */
86                                                 (0 << 2)        | /* AGE */
87                                                 (0 << 1)        | /* CNC2 */
88                                                 (0 << 0)          /* FCE */
89                                            );
90
91 #ifdef CONFIG_QONG_FPGA
92         /* CS1: FPGA/Network Controller/GPIO */
93         /* 16-bit, no DTACK */
94         __REG(CSCR_U(1)) = 0x00000A01;
95         __REG(CSCR_L(1)) = 0x20040501;
96         __REG(CSCR_A(1)) = 0x04020C00;
97
98         /* setup pins for FPGA */
99         mx31_gpio_mux(IOMUX_MODE(0x76, MUX_CTL_GPIO));
100         mx31_gpio_mux(IOMUX_MODE(0x7e, MUX_CTL_GPIO));
101         mx31_gpio_mux(IOMUX_MODE(0x91, MUX_CTL_OUT_FUNC | MUX_CTL_IN_GPIO));
102         mx31_gpio_mux(IOMUX_MODE(0x92, MUX_CTL_GPIO));
103         mx31_gpio_mux(IOMUX_MODE(0x93, MUX_CTL_GPIO));
104 #endif
105
106         /* setup pins for UART1 */
107         mx31_gpio_mux(MUX_RXD1__UART1_RXD_MUX);
108         mx31_gpio_mux(MUX_TXD1__UART1_TXD_MUX);
109         mx31_gpio_mux(MUX_RTS1__UART1_RTS_B);
110         mx31_gpio_mux(MUX_CTS1__UART1_CTS_B);
111
112         /* board id for linux */
113         gd->bd->bi_arch_number = MACH_TYPE_QONG;
114         gd->bd->bi_boot_params = (0x80000100);  /* adress of boot parameters */
115
116         return 0;
117 }
118
119 int checkboard (void)
120 {
121         printf("Board: DAVE/DENX QongEVB-LITE\n");
122         return 0;
123 }
124
125 int misc_init_r (void)
126 {
127 #ifdef CONFIG_QONG_FPGA
128         u32 tmp;
129
130         /* FPGA reset */
131         /* rstn = 0 */
132         tmp = __REG(GPIO2_BASE + GPIO_DR);
133         tmp &= (~(1 << QONG_FPGA_RST_PIN));
134         __REG(GPIO2_BASE + GPIO_DR) = tmp;
135         /* set the GPIO as output */
136         tmp = __REG(GPIO2_BASE + GPIO_GDIR);
137         tmp |= (1 << QONG_FPGA_RST_PIN);
138         __REG(GPIO2_BASE + GPIO_GDIR) = tmp;
139         /* wait */
140         udelay(30);
141         /* rstn = 1 */
142         tmp = __REG(GPIO2_BASE + GPIO_DR);
143         tmp |= (1 << QONG_FPGA_RST_PIN);
144         __REG(GPIO2_BASE + GPIO_DR) = tmp;
145         /* set interrupt pin as input */
146         __REG(GPIO2_BASE + GPIO_GDIR) = tmp | (1 << QONG_FPGA_IRQ_PIN);
147         /* wait while the FPGA starts */
148         udelay(300);
149
150         tmp = *(volatile u32*)QONG_FPGA_CTRL_VERSION;
151         printf("FPGA:  ");
152         printf("version register = %u.%u.%u\n",
153                 (tmp & 0xF000) >> 12, (tmp & 0x0F00) >> 8, tmp & 0x00FF);
154 #endif
155
156         return 0;
157 }
158
159 int board_eth_init(bd_t *bis)
160 {
161 #if defined(CONFIG_QONG_FPGA) && defined(CONFIG_DNET)
162         return dnet_eth_initialize(0, (void *)CONFIG_DNET_BASE, -1);
163 #else
164         return 0;
165 #endif
166 }