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d4024bb7 JO |
1 | /* |
2 | * (C) Copyright 2000-2005 | |
3 | * Wolfgang Denk, DENX Software Engineering, wd@denx.de. | |
4 | * | |
5 | * (C) Copyright 2005-2007 | |
6 | * Beijing UD Technology Co., Ltd., taihusupport@amcc.com | |
7 | * | |
8 | * See file CREDITS for list of people who contributed to this | |
9 | * project. | |
10 | * | |
11 | * This program is free software; you can redistribute it and/or | |
12 | * modify it under the terms of the GNU General Public License as | |
13 | * published by the Free Software Foundation; either version 2 of | |
14 | * the License, or (at your option) any later version. | |
15 | * | |
16 | * This program is distributed in the hope that it will be useful, | |
17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | * GNU General Public License for more details. | |
20 | * | |
21 | * You should have received a copy of the GNU General Public License | |
22 | * along with this program; if not, write to the Free Software | |
23 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
24 | * MA 02111-1307 USA | |
25 | */ | |
26 | #include <common.h> | |
27 | #include <command.h> | |
28 | #include <asm/processor.h> | |
29 | #include <asm/io.h> | |
30 | #include <spi.h> | |
10efa024 | 31 | #include <netdev.h> |
d4024bb7 JO |
32 | #include <asm/gpio.h> |
33 | ||
34 | extern int lcd_init(void); | |
35 | ||
36 | /* | |
37 | * board_early_init_f | |
38 | */ | |
39 | int board_early_init_f(void) | |
40 | { | |
41 | lcd_init(); | |
42 | ||
43 | mtdcr(uicsr, 0xFFFFFFFF); /* clear all ints */ | |
44 | mtdcr(uicer, 0x00000000); /* disable all ints */ | |
45 | mtdcr(uiccr, 0x00000000); | |
46 | mtdcr(uicpr, 0xFFFF7F00); /* set int polarities */ | |
47 | mtdcr(uictr, 0x00000000); /* set int trigger levels */ | |
48 | mtdcr(uicsr, 0xFFFFFFFF); /* clear all ints */ | |
49 | mtdcr(uicvcr, 0x00000001); /* set vect base=0,INT0 highest priority */ | |
50 | ||
d1c3b275 SR |
51 | mtebc(PB3AP, CONFIG_SYS_EBC_PB3AP); /* memory bank 3 (CPLD_LCM) initialization */ |
52 | mtebc(PB3CR, CONFIG_SYS_EBC_PB3CR); | |
d4024bb7 | 53 | |
779e9751 SR |
54 | /* |
55 | * Configure CPC0_PCI to enable PerWE as output | |
56 | * and enable the internal PCI arbiter | |
57 | */ | |
d1c3b275 | 58 | mtdcr(CPC0_PCI, CPC0_PCI_SPE | CPC0_PCI_HOST_CFG_EN | CPC0_PCI_ARBIT_EN); |
779e9751 | 59 | |
d4024bb7 JO |
60 | return 0; |
61 | } | |
62 | ||
63 | /* | |
64 | * Check Board Identity: | |
65 | */ | |
66 | int checkboard(void) | |
67 | { | |
68 | char *s = getenv("serial#"); | |
69 | ||
70 | puts("Board: Taihu - AMCC PPC405EP Evaluation Board"); | |
71 | ||
72 | if (s != NULL) { | |
73 | puts(", serial# "); | |
74 | puts(s); | |
75 | } | |
76 | putc('\n'); | |
77 | ||
78 | return 0; | |
79 | } | |
80 | ||
d4024bb7 JO |
81 | static int do_sw_stat(cmd_tbl_t* cmd_tp, int flags, int argc, char *argv[]) |
82 | { | |
83 | char stat; | |
84 | int i; | |
85 | ||
86 | stat = in_8((u8 *) CPLD_REG0_ADDR); | |
87 | printf("SW2 status: "); | |
88 | for (i=0; i<4; i++) /* 4-position */ | |
89 | printf("%d:%s ", i, stat & (0x08 >> i)?"on":"off"); | |
90 | printf("\n"); | |
91 | return 0; | |
92 | } | |
93 | ||
94 | U_BOOT_CMD ( | |
95 | sw2_stat, 1, 1, do_sw_stat, | |
2fb2604d | 96 | "show status of switch 2", |
a89c33db WD |
97 | "" |
98 | ); | |
d4024bb7 JO |
99 | |
100 | static int do_led_ctl(cmd_tbl_t* cmd_tp, int flags, int argc, char *argv[]) | |
101 | { | |
102 | int led_no; | |
103 | ||
104 | if (argc != 3) { | |
79621bc1 | 105 | cmd_usage(cmd_tp); |
d4024bb7 JO |
106 | return -1; |
107 | } | |
108 | ||
109 | led_no = simple_strtoul(argv[1], NULL, 16); | |
110 | if (led_no != 1 && led_no != 2) { | |
79621bc1 | 111 | cmd_usage(cmd_tp); |
d4024bb7 JO |
112 | return -1; |
113 | } | |
114 | ||
115 | if (strcmp(argv[2],"off") == 0x0) { | |
116 | if (led_no == 1) | |
117 | gpio_write_bit(30, 1); | |
118 | else | |
119 | gpio_write_bit(31, 1); | |
120 | } else if (strcmp(argv[2],"on") == 0x0) { | |
121 | if (led_no == 1) | |
122 | gpio_write_bit(30, 0); | |
123 | else | |
124 | gpio_write_bit(31, 0); | |
125 | } else { | |
79621bc1 | 126 | cmd_usage(cmd_tp); |
d4024bb7 JO |
127 | return -1; |
128 | } | |
129 | ||
130 | return 0; | |
131 | } | |
132 | ||
133 | U_BOOT_CMD ( | |
134 | led_ctl, 3, 1, do_led_ctl, | |
2fb2604d | 135 | "make led 1 or 2 on or off", |
d4024bb7 | 136 | "<led_no> <on/off> - make led <led_no> on/off,\n" |
a89c33db WD |
137 | "\tled_no is 1 or 2" |
138 | ); | |
d4024bb7 JO |
139 | |
140 | #define SPI_CS_GPIO0 0 | |
141 | #define SPI_SCLK_GPIO14 14 | |
142 | #define SPI_DIN_GPIO15 15 | |
143 | #define SPI_DOUT_GPIO16 16 | |
144 | ||
145 | void spi_scl(int bit) | |
146 | { | |
147 | gpio_write_bit(SPI_SCLK_GPIO14, bit); | |
148 | } | |
149 | ||
150 | void spi_sda(int bit) | |
151 | { | |
152 | gpio_write_bit(SPI_DOUT_GPIO16, bit); | |
153 | } | |
154 | ||
155 | unsigned char spi_read(void) | |
156 | { | |
772003e4 | 157 | return (unsigned char)gpio_read_in_bit(SPI_DIN_GPIO15); |
d4024bb7 JO |
158 | } |
159 | ||
d255bb0e | 160 | int spi_cs_is_valid(unsigned int bus, unsigned int cs) |
d4024bb7 | 161 | { |
d255bb0e | 162 | return bus == 0 && cs == 0; |
d4024bb7 JO |
163 | } |
164 | ||
d255bb0e HS |
165 | void spi_cs_activate(struct spi_slave *slave) |
166 | { | |
167 | gpio_write_bit(SPI_CS_GPIO0, 1); | |
168 | } | |
d4024bb7 | 169 | |
d255bb0e HS |
170 | void spi_cs_deactivate(struct spi_slave *slave) |
171 | { | |
172 | gpio_write_bit(SPI_CS_GPIO0, 0); | |
173 | } | |
d4024bb7 JO |
174 | |
175 | #ifdef CONFIG_PCI | |
176 | static unsigned char int_lines[32] = { | |
177 | 29, 30, 27, 28, 29, 30, 25, 27, | |
178 | 29, 30, 27, 28, 29, 30, 27, 28, | |
179 | 29, 30, 27, 28, 29, 30, 27, 28, | |
180 | 29, 30, 27, 28, 29, 30, 27, 28}; | |
181 | ||
182 | static void taihu_pci_fixup_irq(struct pci_controller *hose, pci_dev_t dev) | |
183 | { | |
184 | unsigned char int_line = int_lines[PCI_DEV(dev) & 31]; | |
185 | ||
186 | pci_hose_write_config_byte(hose, dev, PCI_INTERRUPT_LINE, int_line); | |
187 | } | |
188 | ||
189 | int pci_pre_init(struct pci_controller *hose) | |
190 | { | |
191 | hose->fixup_irq = taihu_pci_fixup_irq; | |
192 | return 1; | |
193 | } | |
194 | #endif /* CONFIG_PCI */ | |
10efa024 BW |
195 | |
196 | int board_eth_init(bd_t *bis) | |
197 | { | |
cef0efaf | 198 | cpu_eth_init(bis); |
10efa024 BW |
199 | return pci_eth_init(bis); |
200 | } |